20-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 20-F

(Mark One)

¨ REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934

OR

x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

        For the fiscal year ended March 31, 2014

OR

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

OR

¨ SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

        Date of event requiring this shell company report

                      For the transition period from             to             

Commission file number 001-33098

Kabushiki Kaisha Mizuho Financial Group

(Exact name of Registrant as specified in its charter)

Mizuho Financial Group, Inc.

(Translation of Registrant’s name into English)

Japan

(Jurisdiction of incorporation or organization)

1-5-5 Otemachi

Chiyoda-ku, Tokyo 100-8176

Japan

(Address of principal executive offices)

Yutaka Ueki, +81-3-5224-1111, +81-3-5224-1059, address is same as above

(Name, Telephone, Facsimile number and Address of Company Contact Person)

Securities registered or to be registered pursuant to Section 12(b) of the Act.

Title of each class	Name of each exchange on which registered
Common Stock, without par value	The New York Stock Exchange*
American depositary shares, each of which represents two shares of common stock	The New York Stock Exchange

Securities registered or to be registered pursuant to Section 12(g) of the Act.

None

(Title of Class)

Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act:

None

(Title of Class)

Indicate the number of outstanding shares of each of the issuer’s classes of capital or common stock as of the close of the period covered by the annual report.

At March 31, 2014, the following shares of capital stock were issued: (1) 24,263,885,187 shares of common stock (including 10,637,825 shares of common stock held by the registrant as treasury stock), (2) 914,752,000 shares of eleventh series class XI preferred stock (including 602,100,700 shares of eleventh series class XI preferred stock held by the registrant as treasury stock).

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

Yes  x    No  ¨

If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934.

Yes  ¨    No  x

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes  x    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).

Yes  x    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer. See definition of “accelerated filer and large accelerated filer” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer  x Accelerated filer  ¨ Non-accelerated filer  ¨

Indicate by check mark which basis of accounting the registrant has used to prepare the financial statements included in this filing:

U.S. GAAP  x International Financial Reporting Standards as issued by the International Accounting Standards Board  ¨ Other  ¨

If “Other” has been checked in response to the previous question, indicate by check mark which financial statement item the registrant has elected to follow.

Item 17  ¨    Item 18  ¨

If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes  ¨    No   x

(APPLICABLE ONLY TO ISSUERS INVOLVED IN BANKRUPTCY PROCEEDINGS DURING THE PAST FIVE YEARS)

Indicate by check mark whether the registrant has filed all documents and reports required to be filed by Section 12, 13 or 15(d) of the Securities Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court.

¨  Yes    ¨  No

* Not for trading, but only in connection with the registration and listing of the ADSs.

MIZUHO FINANCIAL GROUP, INC.

ANNUAL REPORT ON FORM 20-F

Table of Contents

			Page
Presentation of Financial and Other Information				3
Forward-Looking Statements				3
ITEM 1.	Identity of Directors, Senior Management and Advisers			5
ITEM 2.	Offer Statistics and Expected Timetable			5
ITEM 3.	Key Information			5
	3.A.	Selected Financial Data		5
	3.B.	Capitalization and Indebtedness		10
	3.C.	Reasons for the Offer and Use of Proceeds		10
	3.D.	Risk Factors		10
ITEM 4.	Information on the Company			20
	4.A.	History and Development of the Company		20
	4.B.	Business Overview		21
	4.C.	Organizational Structure		47
	4.D.	Property, Plant and Equipment		49
ITEM 4A.	Unresolved Staff Comments			49
ITEM 5.	Operating and Financial Review and Prospects			50
ITEM 6.	Directors, Senior Management and Employees			117
	6.A.	Directors and Senior Management		117
	6.B.	Compensation		135
	6.C.	Board Practices		137
	6.D.	Employees		141
	6.E.	Share Ownership		142
ITEM 7.	Major Shareholders and Related Party Transactions			144
	7.A.	Major Shareholders		144
	7.B.	Related Party Transactions		145
	7.C.	Interests of Experts and Counsel		145
ITEM 8.	Financial Information			146
	8.A.	Consolidated Statements and Other Financial Information		146
	8.B.	Significant Changes		146
ITEM 9.	The Offer and Listing			147
	9.A.	Listing Details		147
	9.B.	Plan of Distribution		148
	9.C.	Markets		148
	9.D.	Selling Shareholders		149
	9.E.	Dilution		149
	9.F.	Expenses of the Issue		149
ITEM 10.	Additional Information			150
	10.A.	Share Capital		150
	10.B.	Memorandum and Articles of Association		150
	10.C.	Material Contracts		162
	10.D.	Exchange Controls		162
	10.E.	Taxation		163
	10.F.	Dividends and Paying Agents		169
	10.G.	Statement by Experts		169
	10.H.	Documents on Display		169
	10.I.	Subsidiary Information		169

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			Page
ITEM 11.	Quantitative and Qualitative Disclosures about Market Risk			170
ITEM 12.	Description of Securities Other than Equity Securities			190
	12.A.	Debt Securities		190
	12.B.	Warrants and Rights		190
	12.C.	Other Securities		190
	12.D.	American Depositary Shares		190
ITEM 13.	Defaults, Dividend Arrearages and Delinquencies			191
ITEM 14.	Material Modifications to the Rights of Securities Holders and Use of Proceeds			191
ITEM 15.	Controls and Procedures			191
ITEM 16A.	Audit Committee Financial Expert			192
ITEM 16B.	Code of Ethics			192
ITEM 16C.	Principal Accountant Fees and Services			192
ITEM 16D.	Exemptions from the Listing Standards for Audit Committees			193
ITEM 16E.	Purchase of Equity Securities by the Issuer and Affiliated Purchasers			194
ITEM 16F.	Change in Registrant’s Certifying Accountant			194
ITEM 16G.	Corporate Governance			194
ITEM 17.	Financial Statements			196
ITEM 18.	Financial Statements			196
ITEM 19.	Exhibits			196
Selected Statistical Data				A-1
Index to Consolidated Financial Statements				F-1

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PRESENTATION OF FINANCIAL AND OTHER INFORMATION

In this annual report, “we,” “us,” and “our” refer to Mizuho Financial Group, Inc. and, unless the context indicates otherwise, its consolidated subsidiaries. “Mizuho Financial Group” refers to Mizuho Financial Group, Inc. Furthermore, unless the context indicates otherwise, these references are intended to refer to us as if we had been in existence in our current form for all periods referred to herein.

On July 1, 2013, a merger between the former Mizuho Bank, Ltd. and the former Mizuho Corporate Bank, Ltd. came into effect with the former Mizuho Corporate Bank as the surviving entity, which was renamed Mizuho Bank upon the merger. In this annual report, “Mizuho Bank” refers to the post-merger entity, while the “former Mizuho Bank” and the “former Mizuho Corporate Bank” refer to pre-merger Mizuho Bank and pre-merger Mizuho Corporate Bank, respectively.

In this annual report, “our principal banking subsidiaries” refer to Mizuho Bank and Mizuho Trust & Banking Co., Ltd. (or with respect to references as of a date, or for periods ending, before July 1, 2013, to the former Mizuho Bank, the former Mizuho Corporate Bank and Mizuho Trust & Banking).

In this annual report, references to “U.S. dollars,” “dollars” and “$” refer to the lawful currency of the United States and those to “yen” and “¥” refer to the lawful currency of Japan.

In this annual report, yen figures and percentages have been rounded to the figures shown. However, in some cases, figures presented in tables have been adjusted to match the sum of the figures with the total amount, and such figures may also be referred to in the related text. In addition, yen figures and percentages in “Item 3.A. Key Information—Selected Financial Data—Japanese GAAP Selected Consolidated Financial Information” and others that are specified have been truncated to the figures shown.

Our fiscal year end is March 31. References to years not specified as being fiscal years are to calendar years.

Unless otherwise specified, for purposes of this annual report, we have presented our financial information in accordance with accounting principles generally accepted in the United States, or U.S. GAAP. Unless otherwise stated or the context otherwise requires, all amounts in our financial statements are expressed in Japanese yen.

We usually hold the ordinary general meeting of shareholders of Mizuho Financial Group in June of each year in Chiyoda-ku, Tokyo.

FORWARD-LOOKING STATEMENTS

We may from time to time make written or oral forward-looking statements. Written forward-looking statements may appear in documents filed with the Securities and Exchange Commission, including this annual report, and other reports to shareholders and other communications.

The U.S. Private Securities Litigation Reform Act of 1995 provides a “safe harbor” for forward-looking information to encourage companies to provide prospective information about themselves. We rely on this safe harbor in making these forward-looking statements.

This annual report contains forward-looking statements regarding the intent, belief, current expectations and targets of our management with respect to our financial condition and future results of operations. In many cases, but not all, we use such words as “aim,” “anticipate,” “believe,” “endeavor,” “estimate,” “expect,” “intend,” “may,” “plan,” “probability,” “project,” “risk,” “seek,” “should,” “strive,” “target” and similar expressions in relation to us or our management to identify forward-looking statements. You can also identify forward-looking statements by discussions of strategy, plans or intentions. These statements reflect our current views with respect

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to future events and are subject to risks, uncertainties and assumptions. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, our actual results may vary materially from those we currently anticipate. Potential risks and uncertainties include, without limitation, the following:

• incurrence of significant credit-related costs;

• declines in the value of our securities portfolio, including as a result of the declines in stock markets and the impact of the dislocation in the global financial markets;

• changes in interest rates;

• foreign exchange rate fluctuations;

• decrease in the market liquidity of our assets;

• revised assumptions or other changes related to our pension plans;

• a decline in our deferred tax assets;

• the effect of financial transactions entered into for hedging and other similar purposes;

• failure to maintain required capital adequacy ratio levels;

• downgrades in our credit ratings;

• our ability to avoid reputational harm;

• our ability to implement our Medium-term Business Plan and other strategic initiatives and measures effectively;

• the effectiveness of our operation, legal and other risk management policies;

• the effect of changes in general economic conditions in Japan and elsewhere; and

• amendments and other changes to the laws and regulations that are applicable to us.

Our forward-looking statements are not guarantees of future performance and involve risks and uncertainties. Actual results may differ from those in the forward-looking statements as a result of various factors. We identify in this annual report in “Item 3.D. Key Information—Risk Factors,” “Item 4.B. Information on the Company—Business Overview,” “Item 5. Operating and Financial Review and Prospects” and elsewhere, some, but not necessarily all, of the important factors that could cause these differences.

We do not intend to update our forward-looking statements. We are under no obligation, and disclaim any obligation, to update or alter our forward-looking statements, whether as a result of new information, future events or otherwise.

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PART I

ITEM 1. IDENTITY OF DIRECTORS, SENIOR MANAGEMENT AND ADVISERS

Not applicable.

ITEM 2. OFFER STATISTICS AND EXPECTED TIMETABLE

Not applicable.

ITEM 3. KEY INFORMATION

3.A. Selected Financial Data

The following tables set forth our selected consolidated financial data.

The first table below sets forth selected consolidated financial data of Mizuho Financial Group as of and for the fiscal years ended March 31, 2010, 2011, 2012, 2013 and 2014 which have been derived from the audited consolidated financial statements of Mizuho Financial Group prepared in accordance with U.S. GAAP included in this annual report.

The second table below sets forth selected consolidated financial data of Mizuho Financial Group as of and for the fiscal years ended March 31, 2010, 2011, 2012, 2013 and 2014 derived from Mizuho Financial Group’s consolidated financial statements prepared in accordance with accounting principles generally accepted in Japan, or Japanese GAAP.

The consolidated financial statements of Mizuho Financial Group as of and for the fiscal years ended March 31, 2012, 2013 and 2014 prepared in accordance with U.S. GAAP have been audited in accordance with the standards of the Public Company Accounting Oversight Board (United States) by Ernst & Young ShinNihon LLC, independent registered public accounting firm.

You should read the U.S. GAAP selected consolidated financial information presented below together with the information included in “Item 5. Operating and Financial Review and Prospects” and the audited consolidated financial statements, including the notes thereto, included in this annual report. The information presented below is qualified in its entirety by reference to that information.

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U.S. GAAP Selected Consolidated Financial Information

	As of and for the fiscal years ended March 31,
	2010			2011		2012			2013		2014
	(in millions of yen, except per share data, share number information and percentages)
Statement of income data:
Interest and dividend income	¥	1,632,282		¥	1,460,184	¥	1,437,086		¥	1,423,375	¥	1,422,799
Interest expense		528,159			448,857		415,959			412,851		401,565
Net interest income		1,104,123			1,011,327		1,021,127			1,010,524		1,021,234
Provision (credit) for loan losses		222,102			647		(23,044	)		139,947		(126,230	)
Net interest income after provision (credit) for loan losses		882,021			1,010,680		1,044,171			870,577		1,147,464
Noninterest income		1,330,847			1,036,532		1,090,135			1,439,419		1,082,834
Noninterest expenses		1,526,413			1,435,855		1,471,471			1,424,816		1,503,955
Income before income tax expense (benefit)		686,455			611,357		662,835			885,180		726,343
Income tax expense (benefit)		(360,195	)		193,227		13,878			4,024		226,108
Net income		1,046,650			418,130		648,957			881,156		500,235
Less: Net income (loss) attributable to noncontrolling interests		46,961			5,461		(7,432	)		5,744		1,751
Net income attributable to MHFG shareholders	¥	999,689		¥	412,669	¥	656,389		¥	875,412	¥	498,484
Net income attributable to common shareholders	¥	988,603		¥	403,231	¥	647,717		¥	867,191	¥	491,739
Amounts per share:
Basic earnings per common share—net income attributable to common shareholders	¥	70.55		¥	20.44	¥	28.07		¥	36.05	¥	20.33
Diluted earnings per common share—net income attributable to common shareholders	¥	61.64		¥	19.22	¥	26.78		¥	34.47	¥	19.64
Number of shares used to calculate basic earnings per common share (in thousands)		14,013,058			19,722,818		23,073,544			24,053,282		24,189,670
Number of shares used to calculate diluted earnings per common share (in thousands)		16,200,812			21,415,109		24,469,539			25,365,229		25,371,252
Cash dividends per share declared during the fiscal year(1):
Common stock	¥	10.00		¥	8.00	¥	6.00		¥	6.00	¥	6.00
	$	0.11		$	0.10	$	0.07		$	0.06	$	0.06
Eleventh series class XI preferred stock	¥	20.00		¥	20.00	¥	20.00		¥	20.00	¥	20.00
	$	0.21		$	0.24	$	0.24		$	0.21	$	0.19
Thirteenth series class XIII preferred stock(2)	¥	30.00		¥	30.00	¥	30.00		¥	30.00	¥	30.00
	$	0.32		$	0.36	$	0.36		$	0.32	$	0.29

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	As of and for the fiscal years ended March 31,
	2010			2011			2012			2013			2014
	(in millions of yen, except per share data, share number information and percentages)
Balance sheet data:
Total assets	¥	158,351,456		¥	161,985,670		¥	166,361,633		¥	178,746,994		¥	175,699,346
Loans, net of allowance		62,903,418			63,955,284			65,306,370			69,060,526			72,858,777
Total liabilities		155,019,438			157,950,314			161,714,609			172,889,899			169,077,975
Deposits		86,776,251			89,215,627			91,234,380			100,221,556			102,610,154
Long-term debt		8,482,434			8,953,496			8,461,818			8,802,223			9,853,941
Common stock		4,324,705			5,164,160			5,427,992			5,460,821			5,489,295
Total MHFG shareholders’ equity		2,966,215			3,673,487			4,470,766			5,728,120			6,378,470
Other financial data:
Return on equity and assets:
Net income attributable to common shareholders as a percentage of total average assets		0.62	%		0.25	%		0.39	%		0.50	%		0.27	%
Net income attributable to common shareholders as a percentage of average MHFG shareholders’ equity		39.99	%		12.63	%		15.56	%		18.76	%		9.64	%
Dividends per common share as a percentage of basic earnings per common share		11.34	%		29.35	%		21.38	%		16.64	%		31.97	%
Average MHFG shareholders’ equity as a percentage of total average assets		1.56	%		2.01	%		2.53	%		2.67	%		2.84	%
Net interest income as a percentage of total average interest-earning assets		0.82	%		0.75	%		0.71	%		0.66	%		0.64	%

Notes:

(1) Yen amounts are expressed in U.S. dollars at the rate of ¥93.40 = $1.00, ¥82.76 = $1.00, ¥82.41 = $1.00, ¥94.16 = $1.00 and ¥102.98 = $1.00 for the fiscal years ended March 31, 2010, 2011, 2012, 2013 and 2014, respectively. These rates are the noon buying rates on the respective fiscal year-end dates in New York City for cable transfers in yen as certified for customs purposes by the Federal Reserve Bank of New York.

(2) On July 11, 2013, we acquired and subsequently cancelled all of the thirteenth series class XIII preferred stock.

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Japanese GAAP Selected Consolidated Financial Information

	As of and for the fiscal years ended March 31,
	2010			2011			2012			2013		2014
	(in millions of yen, except per share data and percentages)
Statement of income data:
Interest income	¥	1,571,994		¥	1,457,687		¥	1,423,564		¥	1,421,609	¥	1,417,569
Interest expense		420,287			348,242			335,223			345,710		309,266
Net interest income		1,151,707			1,109,444			1,088,340			1,075,898		1,108,303
Fiduciary income		49,100			49,388			49,014			48,506		52,014
Net fee and commission income(1)		466,040			458,824			458,933			507,378		560,768
Net trading income		312,330			243,983			150,317			215,033		187,421
Net other operating income		17,436			163,680			256,468			324,899		126,774
General and administrative expenses(1)		1,317,247			1,277,848			1,283,847			1,244,647		1,258,227
Other income		266,125			156,212			263,024			198,063		344,275
Other expenses		567,728			268,261			265,803			407,299		135,962
Income before income taxes and minority interests		377,765			635,425			716,449			717,832		985,366
Income taxes:
Current(2)		18,040			18,336			55,332			50,400		137,010
Deferred		25,108			120,123			97,494			7,461		77,960
Income before minority interests		334,617			496,965			563,621			659,970		770,396
Minority interests in net income		95,212			83,736			79,102			99,454		81,980
Net income	¥	239,404		¥	413,228		¥	484,519		¥	560,516	¥	688,415
Net income per share:
Basic	¥	16.29		¥	20.47		¥	20.62		¥	22.96	¥	28.18
Diluted		15.57			19.27			19.75			22.05		27.12
Cash dividends per share declared during the fiscal year(3):
Common stock(4)	¥	10.00		¥	8.00		¥	6.00		¥	6.00	¥	6.00
	$	0.11		$	0.10		$	0.07		$	0.06	$	0.06
Eleventh series class XI preferred stock(4)	¥	20.00		¥	20.00		¥	20.00		¥	20.00	¥	20.00
	$	0.21		$	0.24		$	0.24		$	0.21	$	0.19
Thirteenth series class XIII preferred stock(5)	¥	30.00		¥	30.00		¥	30.00		¥	30.00	¥	30.00
	$	0.32		$	0.36		$	0.36		$	0.32	$	0.29
Balance sheet data:
Total assets	¥	156,253,572		¥	160,812,006		¥	165,360,501		¥	177,411,062	¥	175,822,885
Loans and bills discounted(6)		62,164,579			62,777,757			63,800,509			67,536,882		69,301,405
Securities		43,096,460			44,782,067			51,392,878			53,472,399		43,997,517
Deposits(7)		86,627,588			88,884,158			90,636,656			99,568,737		101,811,282
Net assets		5,837,053			6,623,999			6,869,295			7,736,230		8,304,549
Risk-adjusted capital data (Basel II)(8):
Tier 1 capital	¥	5,173,496		¥	6,170,210		¥	6,398,953			n.a.		n.a.
Total risk-based capital		7,658,062			7,910,970			7,775,093			n.a.		n.a.
Risk-weighted assets		56,863,252			51,693,835			50,144,934			n.a.		n.a.
Tier 1 capital ratio		9.09	%		11.93	%		12.76	%		n.a.		n.a.
Capital adequacy ratio		13.46			15.30			15.50			n.a.		n.a.

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	As of and for the fiscal years ended March 31,
	2010		2011		2012		2013			2014
	(in millions of yen, except per share data and percentages)
Risk-adjusted capital data (Basel III)(8):
Common Equity Tier 1 capital		n.a.		n.a.		n.a.	¥	4,803,820		¥	5,304,408
Tier 1 capital		n.a.		n.a.		n.a.		6,487,449			6,844,734
Total capital		n.a.		n.a.		n.a.		8,344,509			8,655,971
Risk-weighted assets		n.a.		n.a.		n.a.		58,823,585			60,287,460
Common Equity Tier 1 capital ratio		n.a.		n.a.		n.a.		8.16	%		8.79	%
Tier 1 capital ratio		n.a.		n.a.		n.a.		11.02			11.35
Total capital ratio		n.a.		n.a.		n.a.		14.18			14.35

Notes:

(1) For the fiscal year ended March 31, 2012, certain items in expenses regarding stock transfer agency business and pension management business, which had been recorded as “General and administrative expenses” by Mizuho Trust & Banking until the previous fiscal year, have been included in “Net fee and commission income” as “Fee and commission expenses,” and reclassification of prior year figures has been made accordingly.

(2) Includes refund of income taxes.

(3) Yen amounts are expressed in U.S. dollars at the rate of ¥93.40 = $1.00, ¥82.76 = $1.00, ¥82.41 = $1.00, ¥94.16 = $1.00 and ¥102.98 = $1.00 for the fiscal years ended March 31, 2010, 2011, 2012, 2013 and 2014, respectively. These rates are the noon buying rates on the respective fiscal year-end dates in New York City for cable transfers in yen as certified for customs purposes by the Federal Reserve Bank of New York.

(4) In June 2014, we declared and paid annual dividends of ¥6.5 per share of common stock and ¥20 per share of eleventh series class XI preferred stock for the fiscal year ended March 31, 2014.

(5) On July 11, 2013, we acquired and subsequently cancelled all of the thirteenth series class XIII preferred stock. Accordingly, cash dividend payments related to the thirteenth series class XIII preferred stock for the fiscal year ended March 31, 2014 will not be declared during the fiscal year ending March 31, 2015.

(6) Bills discounted refer to a form of financing in Japan under which promissory notes obtained by corporations through their regular business activities are purchased by banks prior to their payment dates at a discount based on prevailing interest rates.

(7) Includes negotiable certificates of deposit.

(8) Risk-adjusted capital data are calculated on a Basel II basis until the fiscal year ended March 31, 2012, and on a Basel III basis from the fiscal year ended March 31, 2013. We adopted the advanced internal ratings-based approach (the “AIRB approach”) for the calculation of risk-weighted assets associated with credit risk from the fiscal year ended March 31, 2009. We also adopted the advanced measurement approach (the “AMA”) for the calculation of operational risk from the fiscal year ended March 31, 2010. For more details on capital adequacy requirements set by the Bank for International Settlements (“BIS”), and the guideline implemented by the Financial Services Agency in compliance thereto, see “Item 5. Operating and Financial Review and Prospects—Capital Adequacy.”

There are certain differences between U.S. GAAP and Japanese GAAP. The differences between U.S. GAAP and Japanese GAAP applicable to us primarily relate to the accounting for derivative financial instruments and hedging activities, investments, loans, allowances for loan losses and off-balance-sheet instruments, premises and equipment, real estate sales and leasebacks, land revaluation, business combinations, pension liabilities, consolidation of variable interest entities and deferred taxes. See “Item 5. Operating and Financial Review and Prospects—Reconciliation with Japanese GAAP.”

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Exchange Rate Information

The following table sets forth, for each period indicated, the noon buying rate in New York City for cable transfers in yen as certified for customs purposes by the Federal Reserve Bank of New York, expressed in Japanese yen per $1.00. The exchange rates are reference rates and are not necessarily the rates used to calculate ratios or the rates used to convert yen to U.S. dollars in the financial statements contained in this annual report.

Fiscal years ended (ending) March 31,	High		Low		Average(1)		Period end
	(yen per dollar)
2010	¥	100.71	¥	86.12	¥	92.49	¥	93.40
2011		94.68		78.74		85.00		82.76
2012		85.26		75.72		78.86		82.41
2013		96.16		77.41		83.26		94.16
2014		105.25		92.96		100.46		102.98
2015 (through July 18)		103.94		101.26		101.64		101.37
Calendar year 2014
January	¥	104.87	¥	102.20		—		—
February		102.71		101.11		—		—
March		103.38		101.36		—		—
April		103.94		101.43		—		—
May		102.34		101.26		—		—
June		102.69		101.28		—		—
July (through July 18)		102.19		101.26		—		—

Note:

(1) Calculated by averaging the exchange rates on the last business day of each month during the respective periods. The noon buying rate as of July 18, 2014 was ¥101.37 = $1.00.

3.B. Capitalization and Indebtedness

Not applicable.

3.C. Reasons for the Offer and Use of Proceeds

Not applicable.

3.D. Risk Factors

Investing in our securities involves a high degree of risk. You should carefully consider the risks described below as well as the other information in this annual report, including our consolidated financial statements and related notes, “Item 5. Operating and Financial Review and Prospects,” “Item 11. Quantitative and Qualitative Disclosures about Market Risk” and “Selected Statistical Data.”

Our business, financial condition and operating results could be materially adversely affected by any of the factors discussed below. The trading price of our securities could decline due to any of these factors. This annual report also contains forward-looking statements that involve risks and uncertainties. Our actual results could differ materially from those anticipated in these forward-looking statements as a result of various factors, including the risks faced by us described below and elsewhere in this annual report. See “Forward-Looking Statements.”

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Risks Relating to Our Business

We may incur significant credit-related and other costs in the future due to problem loans.

We are the primary bank lender for a large number of our corporate customers, and the amount of our loans and other claims to each of our major customers is significant. In addition, while we have made efforts to diversify our credit exposure along industry lines, the proportion of credit exposure to customers in the construction and real estate, banks and other financial institutions, and wholesale and retail industries is relatively high. We manage our credit portfolio by regularly monitoring the credit profile of each of our customers, the progress made on restructuring plans and credit exposure concentrations in particular industries or corporate groups, and we also utilize credit derivatives for hedging and credit risk mitigation purposes. In addition, we regularly assess the value of collateral and guarantees. However, depending on trends in the domestic and global economic environment, the business environment in particular industries and other factors, the amount of our problem loans and other claims could increase significantly, including as a result of the deterioration in the credit profile of customers for which we are the primary bank lender, other major customers or customers belonging to industries to which we have significant credit exposure, and the value of collateral and guarantees could decline. There can be no assurance that credit-related and other costs will not increase in the future as a result of the foregoing or otherwise.

Our equity investment portfolio exposes us to market risks that could adversely affect our financial condition and results of operations.

We hold substantial investments in marketable equity securities, mainly common stock of Japanese listed companies. In addition to the partial hedges that we apply as we deem necessary in recent years, we sold a portion of such investments, and we may make further sales in the future. However, significant declines in Japanese stock prices in the future would lead to unrealized losses, losses on impairment and losses from sales of equity securities which could have a material adverse effect on our financial condition and results of operations. In addition, net unrealized gains and losses on such investments, based on Japanese GAAP, are taken into account when calculating the amount of capital for purposes of the calculation of our capital adequacy ratios, and as a result, a decline in the value of such investments would negatively affect such ratios. Accordingly, our financial condition and results of operations could be materially and adversely affected.

Changes in interest rates could adversely affect our financial condition and results of operations.

We hold a significant amount of bonds, consisting mostly of Japanese government bonds, and other instruments primarily for the purpose of investment. As a result of such holdings, an increase in interest rates, primarily yen interest rates, could lead to unrealized losses of bonds or losses from sales of bonds. In addition, due mainly to differences in maturities between financial assets and liabilities, changes in interest rates could have an adverse effect on our average interest rate spread. We manage interest rate risk under our risk management policies, which provide for adjustments in the composition of our bond portfolio and the utilization of derivatives and other hedging methods to reduce our exposure to interest rate risk. However, in the event of significant changes in interest rates, including as a result of a change in Japanese monetary policy, increased sovereign risk due to deterioration of public finances and market trends, our financial condition and results of operations could be materially and adversely affected.

Our financial condition and results of operations could be adversely affected by foreign exchange rate fluctuations.

A portion of our assets and liabilities is denominated in foreign currencies, mainly the U.S. dollar. The difference between the amount of assets and liabilities denominated in foreign currencies leads to foreign currency translation gains and losses in the event of fluctuations in foreign exchange rates. Although we hedge a portion of our exposure to foreign exchange rate fluctuation risk, our financial condition and results of operations could be materially and adversely affected if future foreign exchange rate fluctuations significantly exceed our expectations.

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We may incur further losses relating to decreases in the market liquidity of assets that we hold.

The market liquidity of the various marketable assets that we hold may decrease significantly due to turmoil in financial markets and other factors, and the value of such assets could decline as a result. If factors such as turmoil in global financial markets or the deterioration of economic or financial conditions cause the market liquidity of our assets to decrease significantly, our financial condition and results of operations could be materially and adversely affected.

Our pension-related costs could increase as a result of revised assumptions or changes in our pension plans.

Our pension-related costs and projected benefit obligations are calculated based on assumptions regarding projected returns on pension plan assets and various actuarial assumptions relating to the plans. If actual results differ from our assumptions or we revise our assumptions in the future, due to changes in the stock markets, interest rate environment or otherwise, our pension-related costs and projected benefit obligations could increase. In addition, any future changes to our pension plans could also lead to increases in our pension-related costs and projected benefit obligations. As a result, our financial condition and results of operations could be materially and adversely affected.

A decline in deferred tax assets due to a change in our estimation of future taxable income or change in Japanese tax policy could adversely affect our financial condition and results of operations.

We recorded deferred tax assets based on a reasonable estimation of future taxable income in accordance with applicable accounting standards. Our financial condition and results of operations could be materially and adversely affected if our deferred tax assets decline due to a change in our estimation of future taxable income, a change in tax rate as a result of tax system revision and other factors.

Financial transactions entered into for hedging and other similar purposes could adversely affect our financial condition and results of operations.

The accounting and valuation methods applied to credit and equity derivatives and other financial transactions that we enter into for hedging and credit risk mitigation purposes are not always consistent with the accounting and valuation methods applied to the assets that are being hedged. Consequently, in some cases, due to changes in the market or otherwise, losses related to such financial transactions during a given period may adversely affect net income, while the corresponding increases in the value of the hedged assets do not have an effect on net income for such period. As a result, our financial condition and results of operations could be materially and adversely affected during the period.

Failure to maintain capital adequacy ratios above minimum required levels, as a result of the materialization of risks or regulatory changes, could result in restrictions on our business activities.

We endeavor to maintain sufficient levels of capital adequacy ratios, which are calculated pursuant to standards set forth by Japan’s Financial Services Agency and based on Japanese GAAP, taking into account our plans for investments in risk-weighted assets, the efficiency of our capital structure and other factors. However, our capital adequacy ratios could decline in the future, including as a result of the materialization of any of the risks enumerated in these “Risk Factors” and changes to the methods we use to calculate capital adequacy ratios. Also, there are regulatory adjustments such as goodwill and other intangibles, deferred tax assets, investments in the capital of banking, financial and insurance entities etc., that are deducted from our regulatory capital under certain conditions. Our or our banking subsidiaries’ regulatory capital and capital adequacy ratios could decline due to such regulations.

In addition, if the framework set by the Basel Committee on Banking Supervision, upon which the Financial Services Agency’s rules concerning banks’ capital adequacy ratios are based, is changed or if the Financial Services Agency otherwise changes its banking regulations, we might not be able to meet the minimum

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regulatory requirements for capital adequacy ratios. For example, in December 2010, the Basel Committee on Banking Supervision issued its Basel III rules text, which presents the details of global regulatory standards on bank capital adequacy and liquidity. In March 2012, the Financial Services Agency published revisions to its capital adequacy guidelines which generally reflect rules in the Basel III text and became effective as of March 31, 2013. Furthermore, the Financial Stability Board named us as one of 29 global systemically important banks (“G-SIBs”) in November 2013. The group of G-SIBs will be updated annually and published by the Financial Stability Board each November. If we are deemed a G-SIB in or after November 2014, we may be subject to additional capital requirements. See “Item 5. Operating and Financial Review and Prospects—Capital Adequacy.”

If the capital adequacy ratios of us and our banking subsidiaries fall below specified levels, the Financial Services Agency could require us to take corrective actions, including, depending on the level of deficiency, submission of an improvement plan that would strengthen our capital base, a reduction of our total assets or a suspension of a portion of our business operations. In addition, some of our banking subsidiaries are subject to capital adequacy regulations in foreign jurisdictions such as the United States, and our business could be adversely affected if their capital adequacy ratios fall below specified levels.

Downgrades in our credit ratings could have negative effects on our funding costs and business operations.

Credit ratings are assigned to Mizuho Financial Group, our banking subsidiaries and a number of our other subsidiaries by major domestic and international credit rating agencies. The credit ratings are based on information furnished by us or obtained by the credit rating agencies from independent sources and are also influenced by credit ratings of Japanese government bonds and general views regarding the Japanese financial system as a whole. The credit ratings are subject to revision, suspension or withdrawal by the credit rating agencies at any time. A downgrade in our credit ratings could result in, among other things, the following:

• increased funding costs and other difficulties in raising funds;

• the need to provide additional collateral in connection with financial market transactions; and

• the termination or cancellation of existing agreements.

For example, the additional collateral requirement in connection with our derivative contracts, absent other changes, assuming a downgrade occurred on March 31, 2014, would have been approximately $23 million for a one-notch downgrade and approximately $154 million for a two-notch downgrade. The foregoing figures do not take into account the minority of derivative contracts for which additional collateral requirements are not specifically prescribed and are thus subject to individual negotiations.

As a result, our business, financial condition and results of operations could be materially and adversely affected.

Our business will be adversely affected if we encounter difficulties in raising funds.

We rely principally on deposits and bonds as our funding sources. In addition, we also raise funds in the financial markets. Our efforts to maintain stable funding, such as setting maximum limits on financial market funding and monitoring our liquidity position to apply appropriate funding policies, may not be sufficient to prevent significant increases in our funding costs or cash flow problems if we encounter difficulties in attracting deposits or otherwise raising funds. Such difficulties could result, among other things, from any of the following:

• adverse developments with respect to our financial condition and results of operations;

• downgrading of our credit ratings or damage to our reputation; or

• a reduction in the size and liquidity of the debt markets due for example to the decline in the domestic and global economy, concerns regarding the financial system or turmoil in financial markets and other factors.

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Our Medium-term Business Plan and other strategic initiatives and measures may not result in the anticipated outcome.

We have been implementing strategic initiatives and measures in various areas. In February 2013, we announced our new Medium-term Business Plan for the three fiscal years ending March 31, 2016, in which we set forth various strategic initiatives and measures and also established a number of key target figures that we aim to achieve by the end of the fiscal year ending March 31, 2016.

However, we may not be successful in implementing such initiatives and measures, or even if we are successful in implementing them, the implementation of such initiatives and measures may not have their anticipated effects. In addition, we may not be able to meet the key target figures announced in the Medium-term Business Plan due to these or other factors, including, but not limited to, differences in the actual economic environment compared to our assumptions underlying the Medium-term Business Plan, as well as the risks enumerated in these “Risk Factors.”

We will be exposed to new or increased risks as we expand the range of our products and services.

We offer a broad range of financial services, including banking, trust, securities and other services. As the needs of our customers become more sophisticated and broader in scope, and as the Japanese financial industry continues to be deregulated, we have been entering into various new areas of business, including through various business and equity alliances, which expose us to new risks. While we have developed and intend to maintain risk management policies that we believe are appropriate to address such risks, if a risk materializes in a manner or to a degree outside of our expectations, our business, financial condition and results of operations could be materially and adversely affected.

We are subject to various laws and regulations, and violations could result in penalties and other regulatory actions.

Our business and employees in Japan are subject to various laws and regulations, including those applicable to financial institutions as well as general laws applicable to our business activities, and we are under the regulatory oversight of the Financial Services Agency. Our businesses outside of Japan are also subject to the laws and regulations of the jurisdictions in which they operate and are subject to oversight by the regulatory authorities of those jurisdictions.

Our compliance and legal risk management structures are designed to prevent violations of such laws and regulations, but they may not be effective in preventing all future violations. On September 27, 2013, Mizuho Bank received a business improvement order from the Financial Service Agency identifying serious problems in our posture toward administrative control, internal control and legal/regulatory compliance relating to transactions with anti-social elements with respect to certain domestic captive loan transactions with a consumer credit company. Furthermore, on December 26, 2013, based on the results of reports by Mizuho Financial Group and Mizuho Bank in the course of related inspections by the Financial Service Agency, both Mizuho Financial Group and Mizuho Bank received business improvement orders from the Financial Service Agency, including an order for Mizuho Bank to suspend new credit-offering transactions of the captive loan operations in question. We have taken this incident very seriously, and both Mizuho Financial Group and Mizuho Bank have been implementing measures to strengthen efforts to eliminate any connections with anti-social elements and further enhance our group governance in accordance with the business improvement plans submitted by Mizuho Financial Group and Mizuho Bank to the Financial Service Agency on January 17, 2014. Future violations of laws and regulations could result in regulatory action and harm our reputation, and our business, financial condition and results of operations could be materially and adversely affected.

Employee errors and misconduct could subject us to losses and reputational harm.

Because we process a large number of transactions in a broad range of businesses, we are subject to the risk of various operational errors and misconduct, including those caused by employees. Our measures to reduce

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employee errors, including establishment of operational procedures, regular reviews regarding compliance with these procedures, employee training and automation of our operations, may not be effective in preventing all employee errors and misconduct. Significant operational errors and misconduct in the future could result in losses, regulatory actions or harm to our reputation. As a result, our business, financial condition and results of operations could be materially and adversely affected.

Problems relating to our information technology systems could significantly disrupt our business operations.

We depend significantly on information technology systems with respect to almost all aspects of our business operations. Our information technology systems network, including those relating to bank accounting and cash settlement systems, interconnects our branches and other offices, our customers and various clearing and settlement systems located worldwide. Our efforts to sustain stable daily operations and development of contingency plans for unexpected events, including the implementation of backup and redundancy measures, may not be effective in preventing significant disruptions to our information technology systems caused by, among other things, human error, accidents, hacking, computer viruses, cyber attacks, and development and renewal of computer systems. In the event of any such disruption, our business, financial condition and results of operations could be materially and adversely affected due to disruptions in our business operations, liability to customers and others, regulatory actions or harm to our reputation.

Our reputation could be harmed and we may be subject to liabilities and regulatory actions if we are unable to protect personal and other confidential information.

We handle various confidential or non-public information, including those of our individual and corporate customers, in the ordinary course of our business. The information management policies we maintain and enforce to prevent information leaks and improper access to such information, including those designed to meet the strict requirements of the Personal Information Protection Act of Japan, may not be effective in preventing all such problems. Leakage of important information in the future could result in liabilities and regulatory actions and may also lead to significant harm to our reputation. As a result, our business, financial condition and results of operations could be materially and adversely affected.

Our business would be harmed if we are unable to attract and retain skilled employees.

Many of our employees possess skills and expertise that are important to maintain our competitiveness and to operate our business efficiently. We may not be successful in attracting and retaining sufficient skilled employees through our hiring efforts and training programs aimed to maintain and enhance the skills and expertise of our employees, in which event our competitiveness and efficiency could be significantly impaired. As a result, our business, financial condition and results of operations could be materially and adversely affected.

Our failure to establish, maintain and apply adequate internal controls over financial reporting could negatively impact investor confidence in the reliability of our financial statements.

As a New York Stock Exchange-listed company and an SEC registrant, we have developed disclosure controls and procedures and internal control over financial reporting pursuant to the requirements of the Sarbanes-Oxley Act of 2002 and rules and regulations of the SEC promulgated pursuant thereto. Our management reports on, and our independent registered public accounting firm attests to, the effectiveness of our internal controls over financial reporting, as required, in our annual report on Form 20-F. In addition, our management is required to report on our internal control over financial reporting, and our independent registered public accounting firm is required to provide its opinion concerning the report of our management, in accordance with the Financial Instruments and Exchange Act of Japan. To the extent any issues are identified through the foregoing processes, there can be no assurance that we will be able to address them in a timely manner or at all. Furthermore, even if our management concludes that our internal control over financial reporting are effective,

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our independent registered public accounting firm may still be unable to issue a report that concludes that our internal control over financial reporting are effective. In either case, we may lose investor confidence in the reliability of our financial statements.

We are subject to risk of litigation and other legal proceedings.

As a financial institution engaging in banking and other financial businesses in and outside of Japan, we are subject to the risk of litigation for damages and other legal proceedings in the ordinary course of our business. Adverse developments related to future legal proceedings could have a material adverse effect on our financial condition and results of operations.

Our risk management policies and procedures may not adequately address unidentified or unanticipated risks.

We devote significant resources to strengthening our risk management policies and procedures. Despite this, and particularly in light of the rapid evolution of our operations, our policies and procedures designed to identify, monitor and manage risks may not be fully effective. Some of our methods of managing risks are based upon our use of observed historical market behavior. As a result, these methods may not accurately predict future risk exposures, which could be significantly greater than the historical measures indicate. If our risk management policies and procedures do not function effectively, our financial condition and results of operations could be materially and adversely affected.

Transactions with counterparties in Iran and other countries designated by the U.S. Department of State as state sponsors of terrorism may lead some potential customers and investors to avoid doing business with us or investing in our securities or have other adverse effects.

U.S. law generally prohibits U.S. persons from doing business with countries designated by the U.S. Department of State as state sponsors of terrorism (the “Designated Countries”), which includes Iran, Cuba, Sudan and Syria, and we maintain policies and procedures to comply with U.S. law. Our non-U.S. offices engage in transactions relating to the Designated Countries on a limited basis and in compliance with applicable laws and regulations, including trade financing with respect to our customers’ export or import transactions and maintenance of correspondent banking accounts. In addition, we maintain a representative office in Iran. We do not believe our operations relating to the Designated Countries are material to our business, financial condition or results of operations. We maintain policies and procedures to ensure compliance with applicable Japanese and U.S. laws and regulations.

We are aware of government initiatives to strengthen laws and regulations, such as the U.S. Comprehensive Iran Sanctions, Accountability, and Divestment Act of 2010 and the National Defense Authorization Act for Fiscal Year 2012 and Fiscal Year 2013, applicable to entities with dealings in the Designated Countries. While we maintain policies and procedures to ensure compliance with such initiatives, including Japanese laws and regulations, should the U.S. government regard our measures as inadequate, we may be subject to regulatory action which could materially and adversely affect our business. In addition, we may become unable to retain or acquire customers or investors in our securities, or our reputation may suffer, potentially having adverse effects on our business or the price of our securities.

Our common stock may be subject to dilution as a result of conversion of our convertible preferred stock.

Holders of our eleventh series class XI preferred stock may convert their shares to common stock by requesting us to acquire such shares and issue or transfer common stock to them at any time between July 1, 2008 and June 30, 2016, with mandatory conversion on July 1, 2016. Due to the dilution of our common stock that occurs as a result of the increase in the number of outstanding shares of common stock upon such conversion, the price of our common stock could decline.

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We may be subject to risks related to dividend distributions.

As a holding company, we rely on dividend payments from our banking and other subsidiaries for almost all of our income. As a result of restrictions, such as those on distributable amounts under Japan’s Companies Act, or otherwise, our banking and other subsidiaries may decide not to pay dividends to us. In addition, we may experience difficulty in making, or become unable to make, dividend payments to our shareholders and dividend payments on the preferred securities issued by our overseas special purpose companies due to the deterioration of our results of operations and financial condition and/or the restrictions under the Companies Act or due to the strengthening of bank capital regulations. For more information on restrictions to dividend payments under the Companies Act, see “Item 10.B. Additional Information—Memorandum and Articles of Association.”

We may be adversely affected if economic or market conditions in Japan or elsewhere deteriorate.

We conduct business operations in Japan as well as overseas, including in the United States, Europe and Asia. If general economic conditions in Japan or other regions were to deteriorate or if the financial markets become subject to turmoil, we could experience weakness in our business, as well as deterioration in the quality of our assets. Future deterioration in general economic conditions or financial market turmoil could materially and adversely affect our financial condition and results of operations.

Amendments and other changes to the laws and regulations that are applicable to us could have an adverse effect on us.

We are subject to general laws, regulations and accounting rules applicable to our business activities in and outside of Japan. We are also subject to various laws and regulations applicable to financial institutions such as the Banking Act, including capital adequacy requirements, in and outside of Japan. If the laws and regulations that are applicable to us are amended or otherwise changed, such as in a way that restricts us from engaging in business activities that we currently conduct, our business, financial condition and results of operations could be materially and adversely affected.

Intensification of competition in the market for financial services in Japan could have an adverse effect on us.

Ongoing deregulation in Japan has lowered the barriers to entry with respect to the provision of banking, trust, securities and other financial services. While such deregulation has the effect of increasing our own business opportunities, it also allows other major financial groups, foreign financial institutions, non-bank finance companies, government-affiliated entities such as Japan Post Bank and other financial services providers to enter into new business areas or expand existing businesses, resulting in the intensification of competition in the financial services industry. If we are unable to respond effectively to current or future competition, our business, financial condition and results of operations could be adversely affected. In addition, intensifying competition and other factors could lead to reorganization within the financial services industry, and this could have an adverse effect on our competitive position or otherwise adversely affect the price of our securities.

Our business could be significantly disrupted due to natural disasters, accidents or other causes.

Our headquarters, branch offices, information technology centers, computer network connections and other facilities are subject to the risk of damage from natural disasters such as earthquakes and typhoons as well as from acts of terrorism and other criminal acts. In addition, our business could be materially disrupted as a result of an epidemic such as new or reemerging influenza infections. Our business, financial condition and results of operations could be adversely affected if our recovery efforts, including our implementation of contingency plans that we have developed such as establishing back-up offices, are not effective in preventing significant disruptions to our business operations caused by natural disasters and criminal acts. Additionally, massive natural disasters such as the March 2011 Great East Japan Earthquake may have various adverse effects, including a

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deterioration in economic conditions, declines in the business performance of many of our corporate customers and declines in stock prices. As a result, our financial condition and results of operations could be materially and adversely affected due to an increase in the amount of problem loans and credit-related costs as well as an increase in unrealized losses on, or losses from sales of, equity securities and financial products.

Negative rumors about us could have an adverse effect on us.

Our business depends on maintaining the trust of depositors and other customers and market participants. Negative rumors about us, spread through media coverage, communications between market participants, Internet postings or otherwise, could lead to our customers and market participants believing factually incorrect information about us and harm our reputation. In the event we are unable to dispel such rumors or otherwise restore our reputation, our business, financial condition, results of operations and the price of our securities could be materially and adversely affected.

Risks Related to Owning Our Shares

Rights of shareholders under Japanese law may be more limited than under the law of other jurisdictions.

Our articles of incorporation, our regulations of board of directors and Japan’s Companies Act govern our corporate affairs. Legal principles relating to such matters as the validity of corporate procedures, directors’ and officers’ fiduciary duties and shareholders’ rights may be different from or less clearly defined than those that would apply if we were incorporated in another jurisdiction. For example, under the Companies Act, only holders of 3% or more of the total voting rights or total outstanding shares are entitled to examine our accounting books and records. Shareholders’ rights under Japanese law may not be as extensive as shareholders’ rights under the law of jurisdictions within the United States or other countries. For more information on the rights of shareholders under Japanese law, see “Item 10.B. Additional Information—Memorandum and Articles of Association.”

It may not be possible for investors to effect service of process within the United States upon us or our directors, executive officers or senior management, or to enforce against us or those persons judgments obtained in U.S. courts predicated upon the civil liability provisions of the federal securities laws of the United States.

We are a joint stock corporation incorporated under the laws of Japan. Almost all of our directors, executive officers and senior management reside outside the United States. Many of the assets of us and these persons are located in Japan and elsewhere outside the United States. It may not be possible, therefore, for U.S. investors to effect service of process within the United States upon us or these persons or to enforce, against us or these persons, judgments obtained in the U.S. courts predicated upon the civil liability provisions of the federal securities laws of the United States. We believe that there is doubt as to the enforceability in Japan, in original actions or in actions to enforce judgments of U.S. courts, of claims predicated solely upon the federal securities laws of the United States.

Risks Related to Owning Our ADSs

As a holder of ADSs, you have fewer rights than a shareholder and you must act through the depositary to exercise these rights.

The rights of our shareholders under Japanese law to take actions such as voting their shares, receiving dividends and distributions, bringing derivative actions, examining our accounting books and records and exercising appraisal rights are available only to shareholders of record. Because the depositary, through its custodian, is the record holder of the shares underlying the ADSs, a holder of ADSs may not be entitled to the same rights as a shareholder. In your capacity as an ADS holder, you are not able to bring a derivative action, examine our accounting books and records or exercise appraisal rights, except through the depositary.

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Foreign exchange rate fluctuations may affect the U.S. dollar value of our ADSs and dividends payable to holders of our ADSs.

Market prices for our ADSs may fall if the value of the yen declines against the U.S. dollar. In addition, the U.S. dollar amount of cash dividends and other cash payments made to holders of our ADSs would be reduced if the value of the yen declines against the U.S. dollar.

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ITEM 4. INFORMATION ON THE COMPANY

4.A. History and Development of the Company

The Mizuho Group

The Mizuho group was created on September 29, 2000 through the establishment of Mizuho Holdings, Inc. as a holding company of our three predecessor banks, The Dai-Ichi Kangyo Bank, The Fuji Bank and The Industrial Bank of Japan. On October 1, 2000, the respective securities subsidiaries of the predecessor banks merged to form Mizuho Securities Co., Ltd., and the respective trust bank subsidiaries merged on the same date to form Mizuho Trust & Banking.

A further major step in the Mizuho group’s development occurred in April 2002 when the operations of our three predecessor banks were realigned through a corporate split and merger process under Japanese law into a wholesale banking subsidiary, the former Mizuho Corporate Bank, and a banking subsidiary serving primarily retail and small and medium-sized enterprise customers, the former Mizuho Bank. As an additional step for realigning the group structure, Mizuho Financial Group was established on January 8, 2003 as a corporation organized under the laws of Japan, and on March 12, 2003, it became the holding company for the Mizuho group through a stock-for-stock exchange with Mizuho Holdings, which became an intermediate holding company focused on management of the Mizuho group’s banking and securities businesses. The legal and commercial name of the company is Mizuho Financial Group, Inc.

In May 2003, we initiated a project to promote early corporate revitalization of customers in need of revitalization or restructuring and to separate the oversight of restructuring borrowers from the normal credit origination function. In July 2003, our three principal banking subsidiaries, the former Mizuho Corporate Bank, the former Mizuho Bank and Mizuho Trust & Banking each transferred loans, equity securities and other claims outstanding relating to approximately 950 companies to new subsidiaries that they formed. In October 2005, based on the significant reduction in the balance of impaired loans held by these new subsidiaries, which we call the “revitalization subsidiaries,” we deemed the corporate revitalization project to be complete, and each of the revitalization subsidiaries was merged into its respective banking subsidiary parent.

In the fiscal year ended March 31, 2006, we realigned our entire business operations into a Global Corporate Group, Global Retail Group and Global Asset and Wealth Management Group. In October 2005, in connection with this realignment, we established Mizuho Private Wealth Management Co., Ltd., a private banking subsidiary, and converted Mizuho Holdings on October 1, 2005 from an intermediate holding company into Mizuho Financial Strategy Co., Ltd., an advisory company that provides advisory services to financial institutions.

In May 2009, Mizuho Securities and Shinko Securities Co., Ltd. conducted their merger, with the aim of improving our service-providing capabilities to our clients and to offer competitive cutting-edge financial services on a global basis.

In September 2011, Mizuho Trust & Banking became a wholly-owned subsidiary of Mizuho Financial Group, Mizuho Securities became an unlisted subsidiary of the former Mizuho Corporate Bank and Mizuho Investors Securities became a wholly-owned subsidiary of the former Mizuho Bank, through their respective stock-for- stock exchanges. The purpose of these stock-for-stock exchanges is to further enhance the “group collective capabilities” by integrating group-wide business operations and optimizing management resources such as workforce and branch network.

In January 2013, Mizuho Securities and Mizuho Investors Securities merged in order to provide integrated securities services as the full-line securities company of the Mizuho group. Mizuho Securities aims to further strengthen collaboration among banking, trust banking and securities businesses of the group, expand the company’s customer base to enhance the domestic retail business, and rationalize and streamline management infrastructure.

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In April 2013, we turned Mizuho Securities, a consolidated subsidiary of Mizuho Financial Group, into a directly-held subsidiary of Mizuho Financial Group, whereby we moved to a new group capital structure, placing banking, trust banking, securities and other major group companies under the direct control of the holding company.

In July 2013, the former Mizuho Bank and the former Mizuho Corporate Bank merged, and the former Mizuho Corporate Bank, the surviving company, changed its trade name to Mizuho Bank, Ltd. The purpose of the merger is to become able to provide directly and promptly diverse and functional financial services to both the former Mizuho Bank and the former Mizuho Corporate Bank customers, utilizing the current “strengths” and “advantages” of the former Mizuho Bank and the former Mizuho Corporate Bank, and to continue to improve customer services by further enhancing group collaboration among the banking, trust and securities functions and, at the same time, to realize further enhancement of the consolidation of group-wide business operations and optimization of management resources, such as workforce and branch network, by strengthening group governance and improving group management efficiency.

Other Information

Our registered address is 1-5-5 Otemachi, Chiyoda-ku, Tokyo 100-8176, Japan, and our telephone number is 81-3-5224-1111.

4.B. Business Overview

General

We engage in banking, trust banking, securities and other businesses related to financial services.

We were established under a financial holding company structure in September 2000 ahead of other major Japanese financial groups. Since an internal reorganization in April 2002, we have strived to enhance our profitability by providing customers with quality financial services through mutual cooperation among our legally separate group companies based on customer segments and functions centered on the holding company.

During the fiscal year 2013, the initial fiscal year of the medium-term business plan for three fiscal years, “One MIZUHO New Frontier Plan—Stepping up to the Next Challenge—,” we pursued unified strategies across the group-wide banking, trust banking and securities business areas and steadily promoted the establishment of an advanced group management structure. Specifically, by taking advantage of the strengths and competitiveness of being a comprehensive financial group that holds its own bank, trust bank and securities company, we established a structure for each segment, redefined it in a more detailed manner based on customer needs and ensured the provision of appropriate business solutions corresponding to the needs of each customer. In addition, we have strengthened business promotion activities and have developed various financial services in a swift manner through group-wide collaboration in response to various customer needs through cross-organizational development of financial know-how and industry knowledge of the group companies. Moreover, in order to provide further enhanced, comprehensive financial services, we have promoted the establishment of joint branches that leverage banking, trust and securities functions.

On July 1, 2013, a merger between the former Mizuho Bank and the former Mizuho Corporate Bank came into effect with the former Mizuho Corporate Bank as the surviving entity, which was renamed Mizuho Bank upon the merger. The two former banks had worked tirelessly since their inception in April 2002 to provide services that comprehensively met the characteristics and needs of each of our customers, and Mizuho Bank prepared a structure to respond to our customers’ varying needs accurately and expeditiously by making optimal use of the strengths and advantages that the two banks had cultivated.

We will continue the steady implementation of the medium-term business plan for the fiscal year ending March 31, 2015, the second fiscal year of the medium-term business plan. In addition, we will further accelerate the unified strategies across the group-wide banking, trust banking and securities business areas in order to

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further advance One MIZUHO and will strengthen our group governance and continuously promote actions for the establishment of a strong corporate culture in order to promote the development of the foundations that support One MIZUHO.

Banking Business: Mizuho Bank

Mizuho Bank provides a wide range of financial products and services mainly in relation to deposits, lending and exchange settlement to individuals, SMEs, large corporations, financial institutions, public sector entities and foreign corporations, including foreign subsidiaries of Japanese corporations. We maintain one of the largest branch and ATM networks in Japan and a broad range of Internet banking services. We also maintain a comprehensive office network which covers major cities worldwide.

Banking Business

Mizuho Bank provides a wide range of financial products and services to individual and corporate customers:

• Deposits, including ordinary deposits, time deposits and foreign currency deposits;

• Lending, including loans for working capital or capital expenditure of corporate customers, initiatives for strategic financial raising such as syndicated loans, housing loans and card loans for individual customers;

• Domestic exchange settlement, including exchange for remittance, credit to current accounts and money collection services;

• Foreign exchange transaction services, including various foreign exchange services relating to international transactions such as imports, exports and foreign remittance; and

• Other financial products and services

Trust Banking Business: Mizuho Trust & Banking

Mizuho Trust & Banking is a trust bank that provides individual and corporate customers with products and services utilizing trusts. We respond to our customers’ various needs by providing appropriate solutions developed based on our specialized expertise as a trust bank. Through such measures, we aim to become the “trust bank that is most trusted by customers.” In addition, we actively strive to open new frontiers in the trust business, including through the development of new products.

Trust Banking Business

Business for Corporate Customers

For corporate customers, we provide trust-related solutions that cross over each of the product lines of the Mizuho group by fully utilizing its trust functions as well as consulting functions with respect to the following business areas:

• real estate business, including real estate sales agent services and real estate securitizations;

• structured product business, including securitization transactions that utilize trusts;

• asset management business relating to various assets, including pension plans;

• pension plan business, including acting as trustee, providing consulting services, actuarial services and administration services;

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• asset administration business, including trustee services for investment trusts and management and administration of investments in securities; and

• equity strategy business, including acting as a stock transfer agent and providing advice on practical issues related to stock.

Business for Individual Customers

For individual customers, we offer solutions unique to trust banks related to the following business areas. In addition, for business owners, we provide services for their business as well as asset management services for both their corporate and personal needs:

• consulting services regarding investment and management of customer assets;

• businesses relating to the asset inheritance such as testamentary trusts;

• consulting services regarding apartment leasing business, providing apartment loans, etc.;

• deposits, investment trusts and other investment products that utilize trusts; and

• real estate business such as brokerage of housing sales and land development.

Others

We provide deposit and loan services to our corporate customers and engage in treasury business.

Securities Business: Mizuho Securities

Mizuho Securities, as the group’s full-line securities company and investment bank, collaborates closely with Mizuho Bank, Mizuho Trust & Banking and other group companies and aims “to provide growth capital through markets and contribute to the economic growth of Japan, Asia and the world through sound development of markets as a participant of financial and capital markets,” and “to become a company that supports its customers to build up their assets and enhance their corporate value, and shares the joy with them.”

We provide one-stop financial services to customers by providing financial services at joint branches of Mizuho Securities and Mizuho Bank (called “Planet Booth”) as well as engaging in the financial products brokerage business with Mizuho Bank and the trust agency business with Mizuho Trust & Banking.

Investment Banking Business

We provide comprehensive support for customers in establishing their management strategies and financing by engaging in businesses related to equity underwriting, support for initial public offerings, investor relations consulting and provision of solutions such as advisory services for financial and capital strategies in addition to the domestic bond underwriting, structured finance businesses and financial advisory business including mergers and acquisitions where we hold leading market positions in Japan. In order to respond to the funding needs of our overseas customers, we are focused on our bond underwriting operations and other operations in collaboration with Mizuho Bank.

In addition, with an aim to provide advanced solutions in banking and securities businesses, we have also introduced a double-hat structure with Mizuho Bank and meet our customers’ needs by unifying banking, trust banking and securities functions of the Mizuho group.

Market and Product Business

As a market leader in the fixed income business mainly in the yen-denominated bond market, we provide products and services that suit our customers’ investment strategies, engage in proactive market making and offer high-quality information.

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In the equities business, we appropriately meet the sophisticated needs of our customers by strengthening our pan-Asia research platform and enhancing investor relations services that target domestic and overseas investors as well as strengthening our sales and trading framework. Moreover, we enjoy a strong reputation for our research capabilities among institutional investors.

Other Businesses Related to Financial Services

We provide various other financial services through major group companies.

Trust & Custody Services Bank

Trust & Custody Services Bank, Ltd., as a trust bank specialized in asset administration, provides a wide range of products, including trust services and various custody services, to promptly meet the diversifying needs of customers such as financial institutions and institutional investors.

Mizuho Asset Management & DIAM

Mizuho Asset Management Co., Ltd. and DIAM Co., Ltd. (an equity method affiliate of ours), provide quality asset management products and services for our group companies and customers that reflect their respective strengths. Each company offers a variety of investment trust products that meet the increasingly sophisticated and diverse needs of our customers.

Mizuho Research Institute

Mizuho Research Institute Ltd. offers information and services mainly to corporations, financial institutions and public sector entities to meet their increasingly diverse and sophisticated needs by integrating its research, funded research and membership services that provide various information related to, among others, managerial and economic issues.

Mizuho Information & Research Institute

Mizuho Information & Research Institute, Inc. mainly provides our corporate customers with the following three services:

• system integration services;

• outsourcing services that support the operation of information technology systems of our customers; and

• consulting services related to, among others, environmental issues.

We provide customers with a combination of the above services to meet their respective needs.

Mizuho Financial Strategy

Mizuho Financial Strategy engages in advisory services for financial institutions regarding their management and revitalization of their borrowers.

Mizuho Private Wealth Management

Mizuho Private Wealth Management offers consulting services tailored to the needs of its ultra high net worth customers. These services range from consulting on customers’ financial needs, such as wealth management, arranging for business and assets succession and related services to advise customers on individual matters, including managing the health of the customers themselves and family members and their children’s education.

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“One MIZUHO New Frontier Plan:– Stepping up to the Next Challenge—”

We commenced our new medium-term business plan for the three years from the fiscal year ended March 31, 2014. We named this proactive business plan the “One MIZUHO New Frontier Plan—Stepping up to the Next Challenge—,” and it aims to launch the new Mizuho toward the “new frontier” of the next generation of finance, in response to structural and regulatory changes in the economy and society both in Japan and overseas. As part of this plan, we developed five basic policies reflecting Mizuho’s vision for our future, the necessary elements for the new frontier of finance, and our future direction based on an analysis of our current situation, and also, adding more detail to these five basic policies, we developed ten basic strategies in terms of business strategy and management foundations as follows:

Mizuho’s Vision

As well as establishing a new, common corporate identity (further details below) for the group as part of our actions toward forming a new, common corporate culture as we push forward toward the new Mizuho as a unified group, we developed the following vision for our future as part of our new corporate identity, and we set the same vision for our medium-term business plan:

The most trusted financial services group with a global presence and a broad customer base, contributing to the prosperity of the world, Asia and Japan.

• The most trusted financial services group

• The best financial services provider

• The most cohesive financial services group

Five Basic Policies

Based on Mizuho’s vision, the necessary elements for the new frontier of finance, and our future direction based on an analysis of Mizuho’s current situation, we developed the following five basic policies as part of the medium-term business plan:

• Further develop integrated strategies across the group for each customer segment to respond to the diverse needs of our customers.

• Contribute to sustainable development of the world and Japan by proactively responding to change.

• Mizuho Means Asia: accelerate globalizations.

• Build strong financial and management foundations to support the essence of Mizuho.

• Form strong corporate governance and culture in the spirit of One MIZUHO.

Ten Basic Strategies

Adding more detail to the five basic policies under the medium-term business plan, we also developed ten basic strategies in terms of business strategy and management foundations as follows:

Business Strategy

• Strengthen integrated financial services by unifying banking, trust banking and securities functions to respond to finely delineated corporate and personal banking segments.

• Perform consulting functions taking advantage of our industry and business knowledge and forward-looking perspective.

• Support formation of personal financial assets in Japan and invigorate their investment.

• Strengthen proactive risk-taking functions for growth industries and corporations.

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• Strengthen and expand Asia-related business in Japan and on a global basis.

• Cultivate multi-level transactions by capturing the accelerating global capital and trade flows.

Business Management, Management Foundations, etc.

• Strengthen stable financial foundations based on abundant liquidity and appropriate capital levels.

• Establish the optimal management foundations (human resources and business infrastructure) to support business strategy.

• Further strengthen proactive governance and risk management.

• Embed the new Mizuho corporate identity toward forming a common culture throughout the group and take actions toward becoming the best financial services provider.

Advanced Group Management Structure

With an aim to establish our advanced group management structure, we turned Mizuho Securities, a consolidated subsidiary of Mizuho Financial Group, into a directly-held subsidiary of Mizuho Financial Group in April 2013 and moved to a new group capital structure that places banking, trust banking, securities and other major group companies under the direct control of Mizuho Financial Group. In July 2013, we consummated the merger of the former Mizuho Bank and the former Mizuho Corporate Bank.

In addition, from April 2013, we have been promoting business strategies across the group-wide banking, trust banking, securities and other business areas and moved to a new group operational structure that enables us to determine strategies and initiatives and formulate business plans. Specifically, the President and Chief Executive Officer of Mizuho Bank, the President of Mizuho Trust & Banking and Mizuho Securities became standing members of the Executive Management Committee of Mizuho Financial Group. In addition, we established ten business units and head-office coordination divisions to determine strategies and initiatives across the group-wide banking, trust banking and securities business areas.

Furthermore, we established five group strategy conferences concerning the strategies for retail (personal), wholesale (corporate), international (overseas), asset management and markets, as forums to comprehensively deliberate on important matters in terms of group business strategy among units.

For further information of the ten business units, see “Group Operations” below.

Enhancing Our Group Governance

In order to fulfill our social responsibilities as a member of the global financial community, we will make efforts to further enhance our group governance and strengthen our crisis management capabilities, in addition to our efforts to further facilitate the progress of our business model. In light of the further strengthening of the business strategy planning and promotion function and of the group governance of the group, it was decided that certain measures, including appointment of officers who are responsible for multiple units and review of the structure whereby concurrent positions are held by certain people among the group’s corporate planning and management personnel, were implemented from April 2014.

We transformed ourselves into a “Company with Committees” upon the approval at the general meeting of the shareholders in June 2014. The basic policy regarding the enhancement of corporate governance, through measures such as the transformation into a “Company with Committees,” is as follows: to secure the effectiveness of corporate governance by ensuring the separation of supervision and management and making supervision of management such as the execution of duties by executive officers the primary focus of the Board of Directors and to make it possible for management to make swift and flexible decisions and realize expeditious

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corporate management by the Board of Directors’ delegating decisions on business execution to executive officers. In addition, the utilization of committees, etc., consisting mainly of outside directors, helps secure transparency and fairness in decision-making processes and the effective supervision of management. We also actively adopt operations and practices that are recommended at a global level regarding corporate governance through such measures as the appointment of the Chairman of the Board of Directors, in principal, from among our outside directors. As for the strengthening of our crisis management capabilities, through newly-established designated organizations, we will continue to establish systems that will respond appropriately to crises by accurately detecting signs and indicators of crises in advance, in addition to our effort to strengthen the ability to respond to emergency situations or events of emergency. At the same time, we will continue to take measures to enhance risk governance by taking into consideration global trends relating to regulations.

Furthermore, we will continuously make efforts to establish a strong corporate culture that supports strong group governance.

Mizuho Corporate Identity

“Mizuho’s Corporate Identity,” which consists of Corporate Philosophy, Vision and The Mizuho Values, serves as the concept that forms the basis of all activities that we conduct.

Mizuho’s Corporate Identity:

1. Corporate Philosophy: Mizuho’s fundamental approach to business activities, based on the raison d’etre of Mizuho

2. Vision: Mizuho’s vision for the future, realized through the practice of “Corporate Philosophy”

3. The Mizuho Values: The shared values and principles of Mizuho’s personnel, uniting all executives and employees together to pursue “Vision”

Brand Strategy

Mizuho adopts a brand slogan, “One Mizuho: Building the future with you,” to indicate our commitment to become “The most trusted financial services group with a global presence and a broad customer base, contributing to the prosperity of the world, Asia and Japan.”

All Mizuho employees are committed to realizing the ideas embodied in our brand slogan, and together we aim to help Mizuho achieve its vision for the future.

Group Operations

Group Operational Structure

We established ten business units to determine strategies and initiatives across the group-wide banking, trust banking, securities and other business areas.

Personal Banking Unit

The Personal Banking Unit provides products and services to individuals, and it strives for us to become “a financial group that continues to be chosen by customers” by improving its ability to provide services.

In the asset management business area, actions in response to the launch of NISA (Japanese Individual Savings Account that provides individual customers with tax exemption for income related to certain investments up to a maximum amount) in January 2014 are being undertaken mainly by Mizuho Bank and Mizuho Securities. Mizuho Bank and Mizuho Securities have been expanding their product lineup such as the i-mizuho Index Series, a group of 22 no-load funds that are offered through the internet and managed by BlackRock, Inc., one of the largest asset management companies in the world.

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We have 165 of Mizuho Securities “Planet Booths,” which are located in the branches and offices of Mizuho Bank as of March 31, 2014, and we make proposals that respond to our customers’ needs relating to asset management.

We also handle trust products at Mizuho Bank and Mizuho Securities branches as sales agents for Mizuho Trust & Banking and provide trust-oriented services such as testimonial trust and real estate related services by setting up “Trust Lounges” in Mizuho Bank branches.

With respect to the loan business, we have expanded our lineup of housing loan and card loan products and offer various products and services. Specifically, we launched in July 2013 the Mizuho Prime Age, a reverse mortgage loan where customers may obtain loans based on the asset value of their homes and in February 2014 a pre-packaged money and loan support product, “Mizuho My Wing,” that offers a loan function in combination with software applications to manage household budgets.

In addition to expanding our staffed branches throughout Japan (Mizuho Bank: 461, Mizuho Trust & Banking: 53, Mizuho Securities: 273 as of March 31, 2014) and our ATM network (approximately 6,000 locations as of February 28, 2014, including ATMs shared with AEON Bank), we are enhancing our Internet banking services and strengthening marketing through the use of call centers.

Retail Banking Unit

The Retail Banking Unit provides products and services mainly to business owners, land owners, lease holders, and SMEs.

We aim to be a “Long-term Business Partner” of our customers in relation to both corporate and individual matters by providing comprehensive consulting services of business and assets inheritance and asset management for business owners, landowners and lease holders, and by providing overall banking services for SMEs.

In addition, we stably supply customers with ample funds while securing appropriate levels of interest rates in accordance with their risks, through our overall lending operations for small-scale companies in Mizuho Business Financial Center, a subsidiary that specializes in making loans.

Corporate Banking Unit (Large Corporations)

The Corporate Banking Unit (Large Corporations) engages in relationship management for large corporations and their affiliates in Japan.

By integrating the group’s specialty functions, including banking, trust banking and securities, and based on our solid relationship with our domestic customers and utilizing our global industry knowledge, we offer a full range of financial solutions on a global basis to meet our customers’ needs in fund-raising, management and financial strategies.

Mizuho Bank and Mizuho Securities introduced the double-hat structure in several offices in Japan. Mizuho Bank and Mizuho Securities collaborate globally to implement our securities strategy on a global basis and to provide our customers solutions based on their capital management, business strategy and financial strategy.

Mizuho Bank and Mizuho Trust & Banking together provide solutions in relation to real estate (regarding which we have a leading track record in the industry in Japan), pension, securitization of assets, securities management, stock transfer agent, consulting, etc., to our customers’ diversified needs for investment and asset reduction.

Further, we are proactively providing risk money to develop next-generation industries and growth industries.

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Corporate Banking Unit

The Corporate Banking Unit provides products and services mainly to relatively larger SMEs (quasi listed companies).

We implement our consulting functions through unifying banking, trust banking and securities functions. We provide a range of solution businesses in accordance with the growth strategy of our corporate customers: we provide solutions for stable fund-raising, mergers and acquisitions and initial public offerings for customers in their start-up or growth stages, and management buy-out, business succession, entry into new business lines and business restructuring for customers in mature or transition stages.

With an aim to provide financial services together with sophisticated advisory services that are appropriate in light of the customers’ business strategies, we respond to customers’ needs through various solution businesses such as offering syndicated loans targeted at SMEs, advisory services related to overseas expansions, mergers and acquisitions-related services and business matching services. On top of this, we develop financial products brokerage business and strengthen the initiatives to enhance the customer base for trustee business for defined contribution pension plans and support for start-up companies in cooperation with Mizuho Capital Co., Ltd.

We actively respond to the funding needs of our customers by establishing a fund that facilitates loans for strengthening foundations for growth that manages a total of approximately ¥1 trillion in order to support the business growth of customers.

Financial Institutions & Public Sector Business Unit

The Financial Institutions & Public Sector Business Unit provides products and services mainly to financial institutions and central and local governments.

For financial institution customers in Japan, we offer advisory services and solutions, such as advice on financial strategy and risk management, support for overseas business, support for revitalization of regional economies and proposals on various investment products, by concentrating our various financial expertise from each group company to meet the increasingly sophisticated and varied needs of customers.

As part of our approach to revitalize the community, we established the “Sixth Industry Fund for the Agriculture, Forestry and Fishing Sector” to promote stable growth and development of the primary industry of agriculture, forestry and fishery by adding value through the integration of its production, processing and logistical operations and transform such industry into the so-called sixth industry, and we invest in entities that engage in the transformation thereof.

For public sector entities, we provide comprehensive financial services that include funding support via the subscription and underwriting of public bonds, cooperation between the public and private sectors, i.e., services as a designated financial institution, PFI and PPP, and arrangement of syndicated loans.

Regarding our bond-related businesses, with our extensive experience and track record as a leading bank in this area, we support our customers’ financing needs by underwriting bonds issued by public sector entities and working as the commissioned bank or fiscal agent for bonds issued by corporations, financial institutions and public sector entities.

International Banking Unit

The International Banking Unit is responsible for business with non-Japanese companies and Japanese companies that conduct business overseas.

In this business area, we provide unified support both in Japan and overseas for our Japanese corporate customers to expand their overseas operations. We do this by providing highly specialized services that use our

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advanced financial technologies and expertise. Particularly in the Asia region, we support Japanese corporate customers in connection with their entry into these markets by offering advisory and other services. We also actively promote business with non-Japanese corporate customers in various countries through our global network.

Further, we actively implement initiatives to meet the diverse needs of our overseas customers in product areas such as project finance and trade finance.

We are expanding our overseas office network to strengthen our overseas support framework for our customers.

Mizuho Bank opened its Phnom Penh Representative Office in Cambodia in June 2013. Mizuho Bank opened its Bangalore-Devanahalli Branch and Chennai Branch in India in April 2013 and November 2013, respectively. There are four Mizuho Bank branches in India, in addition to branches in Mumbai and New Delhi. We aim to strengthen our structure to provide a range of banking services near our customers operating in such regions.

Mizuho Bank (China), Ltd., a wholly-owned subsidiary of Mizuho Bank, opened its Hefei Branch, Shanghai Pilot Free Trade Zone Sub-Branch and Changshu Sub–branch in China in August 2013, March 2014 and May 2014, respectively.

Mizuho Bank expanded its base in growing regions in the world in addition to Asia and established Banco Mizuho do Brasil S.A., its subsidiary, in July 2013. In addition, Mizuho Bank opened the Calgary Office in Canada in October 2013 and the Johannesburg Representative Office, its first African base, in South Africa in December 2013, and received approval from the local authorities to open a representative office in Santiago, Chile in June 2014.

We will continue to strengthen our overseas support framework through actions such as providing local information and supplementing services by forming business alliances with government-affiliated organizations and local financial institutions mainly in emerging nations where Japanese corporations are considering expanding their businesses.

Investment Banking Unit

The Investment Banking Unit provides sophisticated financial solutions mainly in the business areas of mergers and acquisitions, real estate, asset finance, project finance and corporate finance. We are responding to the needs of our broad customer base such as multi-national companies and SMEs by unifying banking, trust banking and securities functions, whereby, we aim to enhance customer satisfaction.

In the mergers and acquisitions business, with an aim to increase the corporate value of our customers, we offer sophisticated mergers and acquisitions solutions mainly in relation to support for mergers and acquisitions strategies, such as cross-border mergers and acquisitions, business succession and going private transactions.

In the real estate business, by taking full advantage of our knowledge and skills of real estate-related project developed through the various deals we have arranged over the years, we offer solutions such as various financing methods by use of their real estate and real estate-related investment strategies.

In the asset finance business, by arranging customers’ asset securitization, we satisfy their demands such as diversification of fund-raising sources and improvement of financial indices through removing assets from their balance sheet.

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In the project finance business, we provide various financial products and services such as project finance deals that enable the procurement of long-term capital for natural resource development abroad, the building of electric power generation projects and the construction of public infrastructure, support for promoting the wider use of renewable energy and arrangement of PFI/PPP deals for financing transportation and other types of public infrastructure.

In the corporate finance business, we proactively provide a wide variety of fund-raising-related solutions in the syndicated loan market, debt capital markets and equity capital markets.

We are further expanding our range of services through cooperation with our group companies, including Mizuho Corporate Advisory Co., Ltd. and Mizuho Capital Partners Co., Ltd.

Transaction Banking Unit

The Transaction Banking Unit engages in businesses related to domestic exchange settlement, foreign exchange, cash management, trade finance, yen correspondence settlement and yen securities custody, global custody, asset management and stock transfer agent services.

Mainly to corporate customers, we offer various financial services and products such as internet banking, cash management solutions, Renminbi-denominated services and trade finance on a global basis.

For financial institutions and institutional investors, we provide custody and yen correspondence settlement services. In particular, we maintain a strong market position regarding our yen securities custody services for non-Japan residents.

With respect to the trust banking business, we proactively engage in global custody services, asset management and stock transfer agent services.

We meet our customers’ needs by unifying banking, trust banking and securities functions mainly in Asia.

Asset Management Unit

The Asset Management Unit provides products and services that correspond to the needs of a broad customer base ranging from individuals to institutional investors by unification of banking, trust banking and securities functions as well as the businesses of our asset management group companies through the synergy effects arising from the integrated operation of the planning, development and sales of businesses relating to asset management.

In the pension-related business, we provide comprehensive pension proposals that include services and products related to defined contribution as well as defined benefit pension plans to meet the needs of customers by collaborating with asset management group companies such as Mizuho Asset Management, DIAM and Shinko Asset Management Co., Ltd. in promoting the business.

In the alternative investment business, we provide our customers with the most relevant products by collaborating with our group companies, including Mizuho Alternative Investments, LLC in the United States, Mizuho Global Alternative Investments, Ltd. in Tokyo, which selects and introduces hedge funds, etc., and Eurekahedge Pte, LTD. in Singapore, which is our subsidiary providing hedge fund research and data services.

In addition, we develop global financial products by collaborating with BlackRock, Inc. and arrange and offer products related to private equity and infrastructure funds by collaborating with Partner Group AG.

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Market Unit

The Market Unit engages in the business of sales and trading of financial products related to, among others, interest rates, foreign exchange, equity, commodities and credit, as well as principal investments in interest rates, equities and credit.

We offer products and services to meet the diverse needs of our customers and support their global business by integrating our banking, trust and securities functions and seamlessly promoting our market business.

We expanded our product lineup from basic areas such as interest rates, foreign exchange and equity to commodity derivatives such as oil, metals and other commodities, and local currency transactions. Specifically, with respect to the overseas business development of our customers, we offer hedged financing that is tailored based on market conditions. In addition, in the fields of Asian and emerging currencies, in response to increasingly sophisticated needs of customers for more efficient hedges and management of market risk, we are drawing on collaboration among specialist teams who are well versed in the regulations and markets in various countries and our global network of offices to develop financial product schemes that take advantage of the characteristics of individual markets in Japan and overseas.

We continue to enhance our portfolio management and diversify our principal investments to make our portfolio more sound and profitable.

Competition

We engage in banking, trust banking, securities and other businesses related to financial services and face strong competition in all of those areas of businesses partly due to deregulation of the Japanese financial industry.

Our major competitors in Japan include:

• Japan’s other major banking groups: Mitsubishi UFJ Financial Group and Sumitomo Mitsui Financial Group.

• Other banking institutions: These include city banks, trust banks, regional banks, shinkin banks (or credit associations), credit cooperatives, agricultural cooperatives, foreign banks and retail-oriented online banks.

• Securities companies and investment banks: These include both domestic securities companies and the Japanese affiliates of global investment banks.

• Government financial institutions: These include Japan Finance Corporation, Japan Post Bank, Development Bank of Japan and Japan Bank for International Cooperation.

• Non-bank finance companies: These include credit card issuers, installment shopping credit companies and other non-bank finance companies.

• Other financial services providers: We also compete with private equity funds and other types of investors.

In global markets, we face competition with other commercial banks and other financial institutions, particularly major global banks and the leading local banks in those financial markets outside Japan in which we conduct business.

Japanese Banking and Securities Industry

Private banking institutions in Japan are normally classified into two categories (the following numbers are based on information published by the Financial Services Agency, available as of April 1, 2014): (i) ordinary

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banks, of which there were 125, not including foreign commercial banks with banking operations in Japan; and (ii) trust banks, of which there were 16, including Japanese subsidiaries of foreign financial institutions and subsidiaries of Japanese financial institutions.

Ordinary banks consist mainly of city banks and regional banks. City banks, including Mizuho Bank, are based in large cities, operate domestically on a nation-wide scale through networks of branch offices and have strong links with large corporate customers in Japan. In light of deregulation and other competitive factors, however, many of these banks have placed increasing emphasis on other markets, including retail banking, small and medium-sized enterprise banking, international operations and investment banking. Regional banks are based in one of the prefectures of Japan and are generally much smaller in terms of total assets than city banks. In recent years, some regional banks have allied with each other and formed holding companies to operate in several prefectures. Customers of regional banks, other than local retail customers, include mostly regional enterprises and local public utilities, although regional banks also lend to large corporations. In addition to these types of banks, new retail-oriented banks have emerged in recent years, including Internet banks and banks specializing in placing their ATMs in convenience stores and supermarkets without maintaining a branch network.

Trust banks, including Mizuho Trust & Banking, are engaged in trust services in relation to, among others, money trust, pension trust and real estate trust services, in addition to banking business.

As of March 31, 2014, there were 55 foreign banks operating banking businesses in Japan. These banks are subject to a statutory framework similar to the regulations applicable to Japanese domestic banks. Their principal sources of funds come from their overseas head offices or other branches.

A number of government financial institutions, organized in order to supplement the activities of the private banking institutions, have been in the process of business and organizational restructuring in recent years. In October 2008, some of the government financial institutions were consolidated to form Japan Finance Corporation, which mainly provides financing for small and medium-sized enterprises and those engaged in agriculture, forestry and fishery, and also provides export financing for Japanese corporations. In October 2008, Development Bank of Japan, which mainly engages in corporate financing, and Shoko Chukin Bank, which mainly engages in financing for small and medium-sized enterprises, were transformed into joint stock corporations. Japan Housing Finance Agency supports housing loans of private institutions through the securitization of such loans.

In April 2012, Japan Bank for International Cooperation, which provides policy-based finance with a mission to contribute to the sound development of Japan and the international economy and society, was spun off from Japan Finance Corporation and was established as a joint stock company wholly owned by the Japanese government.

Another distinctive element of the Japanese banking system is the role of the postal savings system. Postal savings deposits are gathered through the network of governmental post offices scattered throughout Japan, and their balance of deposits totaled over 200 trillion yen in the past. In recent years, the governmental postal business has been in the process of organizational restructuring. In 2003, the governmental postal business was transferred to Japan Post, a government-owned entity established in the same year, and in 2007, Japan Post was transformed into a government-owned joint stock corporation holding four operating companies including Japan Post Bank, which currently operates as an ordinary bank. Privatization of the banking and insurance subsidiaries, which was originally planned to be completed by 2017, was suspended in December 2009. In April 2012, a law was enacted under which Japan Post was retransformed into a joint stock corporation holding three operating companies in October 2012, and the deadline of the privatization of banking and insurance subsidiaries was abolished and replaced with a statement that the privatization is to be conducted in the near future.

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In the Japanese securities market, a large number of registered entities are engaged in securities businesses, such as sales and underwriting of securities, investment advisory and investment management services. As deregulation of the securities market progressed, several of the country’s banking groups have entered into this market through their subsidiaries. In addition, foreign financial institutions have been active in this market.

Supervision and Regulation

Japan

Pursuant to the Banking Act (Ginkou Hou) (Act No. 59 of 1981, as amended), the Prime Minister of Japan has authority to supervise banks in Japan and delegates certain supervisory control over banks in Japan to the Commissioner of the Financial Services Agency. The Bank of Japan also has supervisory authority over banks in Japan, based primarily on its contractual agreements and transactions with the banks.

Financial Services Agency

Although the Prime Minister has supervisory authority over banks in Japan, except for matters prescribed by government order, this authority is generally entrusted to the Commissioner of the Financial Services Agency. Additionally, the position of Minister for Financial Services was established by the Cabinet to direct the Commissioner of the Financial Services Agency and to support the Prime Minister.

Under the Banking Act, the Prime Minister’s authority over banks and bank holding companies in Japan extends to various areas, including granting and cancellation of licenses, ordering the suspension of business in whole or in part and requiring submission of business reports or materials. Under the prompt corrective action system, the Financial Services Agency, acting on behalf of the Prime Minister, may take corrective action in the case of capital deterioration of banks, their subsidiaries and companies having special relationships prescribed by the cabinet order. These actions include requiring a financial institution to formulate and implement reform measures, requiring it to reduce assets or take other specific actions and issuing an order to suspend all or part of its business operations.

Under the prompt warning system introduced in December 2002, the Financial Services Agency may take precautionary measures to maintain and promote the sound operations of financial institutions, even before those financial institutions become subject to the prompt corrective action system. These measures require a financial institution to reform profitability, credit risk management, stability and cash flow.

The Bank of Japan

The Bank of Japan is Japan’s central bank and serves as the principal instrument for the execution of Japan’s monetary policy. The principal measures by which the Bank of Japan implements monetary policy are the adjustment of its discount rate, its operations in the open market and the imposition of deposit reserve requirements. Banks in Japan are allowed to obtain borrowings from, and rediscount bills with, the Bank of Japan. Moreover, most banks in Japan maintain current accounts under agreements with the Bank of Japan pursuant to which the Bank of Japan is entitled to supervise, examine and audit the banks. The supervisory functions of the Bank of Japan are intended to enable it to ensure smooth settlement of funds among banks and other financial institutions, thereby contributing to the maintenance of an orderly financial system, whereas the supervisory practices of the Prime Minister or the Commissioner of the Financial Services Agency are intended to maintain the sound operations of banks and promote the security of depositors.

Examination of Banks

The Banking Act authorizes the Prime Minister to inspect banks and bank holding companies in Japan at any time. By evaluating banks’ systems of self-assessment, auditing their accounts and reviewing their

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compliance with laws and regulations, the Financial Services Agency monitors the financial soundness of banks, including the status and performance of their control systems for business activities. The inspection of banks is performed pursuant to a Financial Inspection Manual published by the Financial Services Agency. Currently, the Financial Services Agency takes the “better regulation” approach in its financial regulation and supervision. This consists of four pillars: optimal combination of rules-based and principles-based supervisory approaches; timely recognition of priority issues and effective response; encouraging voluntary efforts by financial institutions and placing greater emphasis on providing them with incentives; and improving the transparency and predictability of regulatory actions, in pursuit of improvement of the quality of financial regulation and supervision. In addition to individual financial institutions, the Financial Services Agency also supervises financial groups as financial conglomerates based on its Guidelines for Financial Conglomerates Supervision that focus on management, financial soundness and operational appropriateness of a financial conglomerate as a whole.

The Bank of Japan also conducts examinations of banks similar to those undertaken by the Financial Services Agency. The examinations are normally conducted once every few years, and involve such matters as examining asset quality, risk management and reliability of operations. Through these examinations, the Bank of Japan seeks to identify problems at an early stage and give corrective guidance where necessary.

In addition, the Securities and Exchange Surveillance Commission examines banks in connection with their financial instruments business activities in accordance with the Financial Instruments and Exchange Act of Japan (Kinyu Shouhin Torihiki Hou) (Act No. 25 of 1948, as amended).

Examination and Reporting Applicable to Shareholders

Under the Banking Act, a person who intends to hold 20% (in certain exceptional cases, 15%) or more of the voting rights of a bank is required to obtain prior approval of the Commissioner of the Financial Services Agency. In addition, the Financial Services Agency may request reports or submission of materials from, or inspect, any principal shareholder who holds 20% (in certain exceptional cases, 15%) or more of the voting rights of a bank, if necessary in order to secure the sound and appropriate operation of the business of such bank. Under limited circumstances, the Financial Services Agency may order such principal shareholder to take such measures as the Financial Services Agency deems necessary.

Furthermore, under the Banking Act, any person who becomes a holder of more than 5% of the voting rights of a bank holding company or bank must report its ownership of voting rights to the director of the relevant local finance bureau within five business days. In addition, a similar report must be made in respect of any subsequent change of 1% or more in any previously reported holding or any change in material matters set forth in reports previously filed, with some exceptions.

Deposit Insurance System

Under the Deposit Insurance Act (Yokin Hoken Hou) (Act No. 34 of 1971, as amended), depositors are protected through the Deposit Insurance Corporation in cases where financial institutions fail to meet their obligations. The Deposit Insurance Corporation is supervised by the Prime Minister and the Minister of Finance. Subject to limited exceptions, the Prime Minister’s authority is entrusted to the Commissioner of the Financial Services Agency.

The Deposit Insurance Corporation receives annual insurance premiums from insured banks. The effective premium rate from April 2010, which is the weighted average of the rates for deposits that bear no interest, are redeemable upon demand and are used by depositors primarily for payment and settlement purposes, and for other deposits, is 0.084%. However, for the fiscal years ended March 31, 2013 and March 31, 2014, because there were no insured bank failures, the effective premium rate of 0.07% was applied retroactively from the beginning of such fiscal years, and the amount paid in excess of such rates was respectively reimbursed to insured banks without interest. In addition, for the fiscal year ending March 31, 2015, while the effective

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premium rate is 0.084%, if there are no insured bank failures, the effective premium rate of 0.07% will be applied retroactively from the beginning of such fiscal year, and the amount paid in excess of such rate will be reimbursed to insured banks without interest.

The insurance money may be paid out in case of a suspension of deposits repayments, banking license revocation, dissolution or bankruptcy of the bank. Pay outs are generally limited to a maximum of ¥10 million of principal amount, together with any interest accrued with respect to each depositor. Only non-interest bearing deposits, redeemable on demand and used by depositors primarily for payment and settlement functions are protected in full.

Participation in the deposit insurance system is compulsory for city banks (including Mizuho Bank), regional banks, trust banks (including Mizuho Trust & Banking), credit associations and co-operatives, labor banks and other financial institutions.

Governmental Measures to Treat Troubled Institutions

Under the Deposit Insurance Act, a Financial Reorganization Administrator can be appointed by the Prime Minister if the bank is unable to fully perform its obligations with its assets or may suspend or has suspended repayment of deposits. The Financial Reorganization Administrator will take control of the assets of the bank, dispose of the assets and search for another institution willing to take over its business. Its business may also be transferred to a “bridge bank” established by the Deposit Insurance Corporation for the purpose of the temporary maintenance and continuation of operations of these types of institutions, and the bridge bank will seek to transfer the bank’s assets to another financial institution or dissolve the bank. The financial aid provided by the Deposit Insurance Corporation to assist another financial institution with succeeding the failed bank’s business may take the form of a monetary grant, loan or deposit of funds, purchase of assets, guarantee or assumption of debts, subscription of preferred stock or subordinated bonds, lending of subordinated loan, or loss sharing.

Where the Prime Minister recognizes that the failure of a bank which falls into any of (i) through (iii) below may cause an extremely grave problem in maintaining the financial order in Japan or the region where such bank is operating (“systemic risk”), without taking any of the measures described in (i) through (iii) below, the Prime Minister may confirm (nintei) to take any of the following measures, after the deliberation at the Financial Crisis Management Meeting: (i) if the bank does not fall into either of the banks described in (ii) or (iii), the Deposit Insurance Corporation may subscribe for shares or subordinated bonds of, or lend subordinated loans to the bank, or subscribe for shares of the bank holding company of the bank, in order to enhance capital adequacy of the bank; (ii) if the bank may suspend or has suspended repayment of deposits or is unable to fully perform its obligations with its assets, financial aid exceeding the pay-off cost may be available to such bank; and (iii) if the bank may suspend or has suspended repayment of deposits and is unable to fully perform its obligations with its assets, and the systemic risk cannot be avoided by the measure mentioned in (ii) above, the Deposit Insurance Corporation may acquire all of the bank’s shares. The expenses for implementation of the above measures will be borne by the bank industry, with an exception under which the Government of Japan may provide partial subsidies for such expenses.

New orderly and effective resolution regimes for financial institutions have been discussed internationally and “Key Attributes of Effective Resolution Regimes for Financial Institutions” was published by the Financial Stability Board in November 2011 and endorsed by the G20 leaders at the Cannes summit held in November 2011. Reflecting this global trend, pursuant to certain amendments to the Deposit Insurance Act that were promulgated in June 2013 and became effective on March 6, 2014, a new resolution regime was introduced in Japan.

Under the new resolution regime stipulated in the amendments to the Deposit Insurance Act and implementing ordinances thereunder, which became effective on March 6, 2014, financial institutions, including banks, insurance companies and securities companies and their holding companies, are subject to the regime.

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Further, under the new resolution regime, among other things, where the Prime Minister recognizes that the failure of a financial institution which falls into either of (a) or (b) below may cause significant disruption in the financial markets or other financial systems in Japan without taking any of the measures described in (a) (specified item 1 measures)(tokutei dai ichigo sochi) or the measures described in (b) (specified item 2 measures)(tokutei dai nigo sochi), the Prime Minister may confirm (specified confirmation)(tokutei nintei) to take any of the following measures, after the deliberation at the Financial Crisis Management Meeting; (a) if the financial institution does not fall into a financial institution which is unable to fully perform its obligations with its assets, the Deposit Insurance Corporation shall supervise the operation of the business of and the management and disposal of assets of that financial institution (tokubetsu kanshi), and may provide it with loans or guarantees necessary to avoid the risk of significant disruption in the financial systems in Japan (shikin no kashitsuke tou), or subscribe for shares or subordinated bonds of, or lend subordinated loans to the financial institutions (tokutei kabushiki tou no hikiuke tou), in each case to be taken as necessary taking into consideration of the financial conditions of the financial institution; and (b) if the financial institution is or is likely to be unable to fully perform its obligations with its assets or has suspended or is likely to suspend repayment of its obligations, the Deposit Insurance Corporation shall supervise that financial institution (tokubetsu kanshi), and may provide financial aid necessary to assist merger, business transfer, corporate split or other reorganization in respect to such failed financial institution (tokutei shikin enjo). The expenses for implementation of the measures under this regime will be borne by the financial industry, with an exception under which the Government of Japan may provide partial subsidies for such expenses. If a measure set out in (b) above is determined to be taken with respect to a financial institution, the Prime Minister may order that the financial institution’s operation and assets be under the control of the Deposit Insurance Corporation. The business or liabilities of the financial institution subject to the supervision (tokubetsu kanshi) by the Deposit Insurance Corporation as set forth above may also be transferred to a “bridge bank” established by the Deposit Insurance Corporation for the purpose of the temporary maintenance and continuation of operations of, or repayment of the liabilities of, such financial institutions, and the bridge bank will seek to transfer the bank’s business or liabilities to another financial institution or dissolve the bank. The financial aid provided by the Deposit Insurance Corporation to assist merger, business transfer, corporate split or other reorganization in respect to the financial institution set out in (b) may take the form of a monetary grant, loan or deposit of funds, purchase of assets, guarantee or assumption of debts, subscription of preferred stock or subordinated bonds, lending of subordinated loan, or loss sharing.

Recovery and Resolution Plan

In November 2013, the Financial Stability Board published the latest list of global systemically important financial institutions (G-SIFIs). The list is annually updated by the Financial Stability Board each November, and the list as of November 2013 includes us. A recovery and resolution plan must be put in place for each G-SIFI, and be regularly reviewed and updated. In Japan, under the Comprehensive Guidelines for Supervision of Financial Instruments Business Operators, etc., as part of crisis management, financial institutions identified as G-SIFIs must prepare and submit a recovery plan, which includes the triggers to implement the recovery plan and an analysis of recovery options, to the Financial Services Agency, and the Financial Services Agency must prepare a resolution plan for each G-SIFI.

Capital Injection by the Government

The Strengthening Financial Functions Act (Kinyu Kinou no Kyouka no tame no Tokubetsu Sochi ni kansuru Houritsu) (Act No. 128 of 2004) was enacted on June 18, 2004 in order to establish a scheme of public money injection into financial institutions and thereby enhance the soundness of such financial institutions on or prior to March 31, 2008 and revitalize economic activities in the regions where they do business. On December 17, 2008, certain amendments to the Strengthening Financial Functions Act took effect. These amendments relaxed certain requirements for public money injection into Japanese banks and bank holding companies and other financial institutions under the prior scheme and extended the period of application therefor, which had expired on March 31, 2008, to March 31, 2012. These amendments aim to promote not only the soundness of such financial institutions but also the extension of loans or other forms of credit to small and medium-sized enterprises in order

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to revitalize local economies. In response to the Great East Japan Earthquake, the law was amended in June 2011 to extend the period for application to March 31, 2017 and to include special exceptions for disaster-affected financial institutions. None of the financial institutions within the Mizuho group are subject to such special exceptions.

Bank Holding Companies

Under the Banking Act, a bank holding company is prohibited from carrying out businesses other than administrating the businesses of its subsidiaries and matters incidental to such businesses. Business activities for subsidiaries of bank holding companies are limited to finance-related businesses and incidental businesses.

The Anti-Monopoly Act (Shiteki Dokusen no Kinshi oyobi Kousei Torihiki no Kakuho ni kansuru Houritsu) (Act No. 54 of 1947, as amended) prohibits a bank from holding more than 5% of another company’s voting rights. This does not apply to a bank holding company, although the bank holding company is subject to general shareholding restrictions under the Anti-Monopoly Act. The Banking Act does, however, prohibit a bank holding company and its subsidiaries, on an aggregate basis, from holding more than 15% (in contrast to 5% in the case of a bank and its subsidiaries) of the voting rights of certain types of companies not permitted to become subsidiaries of bank holding companies.

Financial Instruments and Exchange Act

The Financial Instruments and Exchange Act (Kinyu Shouhin Torihiki Hou) requires Mizuho Financial Group to file with the Director General of the Kanto Local Finance Bureau an annual securities report including consolidated and non-consolidated financial statements in respect of each financial period, supplemented by quarterly and extraordinary reports.

Under the Financial Instruments and Exchange Act, registered Financial Instruments Business Operators (kinyu-shouhin torihiki gyousha), such as Mizuho Securities, as well as Registered Financial Institutions (touroku kinyu kikan), such as Mizuho Bank and Mizuho Trust & Banking, are required to provide customers with detailed disclosure regarding the financial products they offer and take other measures to protect investors, including a delivery of explanatory documents to such customers prior to and upon the conclusion of transactional agreements.

Financial Instrument Business Operators and Registered Financial Institutions are subject to the supervision of the Financial Services Agency pursuant to delegation by the Prime Minister of Japan. Some of the supervisory authority of the Financial Services Agency is further delegated to the Securities and Exchange Surveillance Commission, which exercises its supervisory power over such registered institutions by conducting site inspections and requesting information necessary for such inspections. Non-compliance or interference with such inspection may result in such registrants being subject to criminal penalty under the Financial Instruments and Exchange Act.

Certain amendments to the Financial Instruments and Exchange Act and the Banking Act, which came into effect on June 1, 2009, revamped the firewall regulations regarding the holding of concurrent offices or posts among banks, securities firms and insurance firms and required banks, securities firms and insurance firms to establish systems for managing conflicts of interest in order to protect customers’ interests and expanded the types of business services that banks and certain other financial firms can provide.

Sales of Financial Products

As a result of financial deregulation, more financial products, including highly structured and complicated products, can now be more freely marketed to customers. In response to this, the Act of Sales of Financial Products (Kinyu Shouhin no Hanbai tou ni kansuru Houritsu) (Act No. 101 of 2000, as amended), effective from

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April 2001, introduced measures to protect financial service customers by: requiring financial service providers to provide customers with certain important information, including risks with respect to deficit of principal associated with the financial products they offer and any restrictions on the period for exercising rights or the period for rescission, unless the customers fall within the ambit of professional investors or express their intent to the contrary; and holding financial service providers liable for damages caused by a failure to follow those requirements. The amount of loss of principal is refutably presumed to be the amount of damages. Additionally, the law requires financial service providers to follow certain regulations on solicitation measures as well as to endeavor to solicit customers in an appropriate manner and formulate and publicize a solicitation policy.

Self-Assessment and Reserves

The prompt corrective action system requires financial institutions to establish a self-assessment program that complies with the Inspection Manual issued by the Financial Services Agency and related laws such as the Financial Reconstruction Act (Kinyu Kinou no Saisei no tameno Kinkyu Sochi ni kansuru Houritsu) (Act No. 132 of 1998, as amended). Financial institutions are required to analyze their assets, giving due consideration to accounting principles and other applicable rules and to classify their assets into four categories according to asset recovery risk and risk of impairment based on the classification of the obligor (normal obligors, watch obligors, intensive control obligors, substantially bankrupt obligors and bankrupt obligors) taking into account the likelihood of repayment and the risk of impairment to the value of the assets. The results of self-assessment should be reflected in the write-off and allowance according to the standard established by financial institutions pursuant to the guidelines issued by the Japanese Institute of Certified Public Accountants and Inspection Manual issued by the Financial Services Agency. Based on the results of the self-assessment, financial institutions may establish reserve amounts for their loan portfolio as may be considered adequate at the relevant balance sheet date, even if all or part of such reserves may not be immediately tax deductible under Japanese tax law.

Based on the accounting standards for banks issued by the Japanese Bankers Association, a bank is required to establish general reserves, specific reserves and reserves for probable losses on loans relating to restructuring countries.

Credit Limits

The Banking Act restricts the aggregate amount of loans to any single customer or customer group for the purposes of avoiding excessive concentration of credit risks and promoting the fair and extensive utilization of bank credit. The limits applicable to a bank holding company and bank with respect to their aggregate lending to any single customer or customer group are established by a cabinet order and by the Banking Act. The current limits are, in case of a single customer, 25%, and in case of a customer group, 40% of the total qualifying capital with certain adjustments of the bank holding company or bank and its subsidiaries and affiliates. In April 2013, the Financial Services Agency announced that the current credit limit restrictions will be tightened in line with the international standards, by, among other things, reducing the credit limit applicable to a customer group from 40% to 25% of the total qualifying capital with certain adjustments of the bank holding company or bank and its subsidiaries and affiliates. The amended credit limit restrictions are expected to be implemented by December 2014.

Restriction on Shareholdings

The Act Concerning Restriction on Shareholdings by Banks (Ginkou tou no Kabushiki tou no Hoyu no Seigen tou ni kansuru Houritsu) (Act No. 131 of 2001, as amended) requires Japanese banks (including bank holding companies) and their subsidiaries to limit the aggregate market value (excluding unrealized gains, if any) of their holdings in equity securities to an amount equal to 100% of their Tier 1 capital in order to reduce exposure to stock price fluctuations.

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Share Purchase Program

The Banks’ Shareholdings Purchase Corporation was established in January 2002 in order to purchase shares from banks and other financial institutions until September 30, 2006 pursuant to the Act Concerning Restriction on Shareholdings by Banks. The Bank’s Shareholdings Purchase Corporation is allowed to resume purchases of shares held by financial institutions as well as shares of financial institutions held by non-financial institutions, up to a maximum amount of ¥20 trillion between March 12, 2009 and March 31, 2017. The Bank’s Shareholdings Purchase Corporation purchased ¥984.2 billion of shares during the period from March 12, 2009 through June 30, 2014. The Bank’s Shareholdings Purchase Corporation will dispose of the purchased shares by March 31, 2027 by taking into consideration the effects on the stock market.

The Bank of Japan also purchased ¥387.8 billion of shares held by banks and other financial institutions during the period from February 23, 2009 through April 30, 2010. The Bank of Japan generally will not sell the purchased shares until March 31, 2016. The Bank of Japan will dispose of the purchased shares by September 30, 2021 by taking into consideration the effects on the stock market.

Capital Adequacy

The capital adequacy guidelines applicable to Japanese banks and bank holding companies with international operations supervised by the Financial Services Agency closely follow the risk-adjusted approach proposed by the Bank for International Settlements and are intended to further strengthen the soundness and stability of Japanese banks. Under the risk-based capital framework of these guidelines, balance sheet assets and off-balance-sheet exposures are assessed according to broad categories of relative risk, based primarily on the credit risk of the counterparty, country transfer risk and the risk regarding the category of transactions.

In December 2010, the Basel Committee on Banking Supervision issued its Basel III rules text, which builds on the International Convergence of Capital Measurement and Capital Standards document (“Basel II”), to strengthen the regulation, supervision, and risk management of the banking sector. Basel III text presents the details of global regulatory standards on bank capital adequacy and liquidity. The rules text sets out higher and better-quality capital, better risk coverage, the introduction of a leverage ratio as a backstop to the risk-based requirement, measures to promote the build-up of capital that can be drawn down in periods of stress, and the introduction of two global liquidity standards. For further information of the leverage ratio and the two global liquidity standards, see “Leverage Ratio” and “Liquidity” below, respectively.

The Financial Services Agency’s revisions to its capital adequacy guidelines became effective from March 31, 2013, which generally reflect rules in the Basel III text that have been applied from January 1, 2013.

Under the revised guidelines, the minimum capital adequacy ratio is 8% on both a consolidated and non-consolidated basis for banks with international operations, such as Mizuho Bank, or on a consolidated basis for bank holding companies with international operations, such as Mizuho Financial Group. Within the minimum capital adequacy ratio, the Common Equity Tier 1 capital requirement is 4.0%, which will be raised in phases to 4.5% when fully effective in March 2015, and the Tier 1 capital requirement is 5.5%, which will be raised in phases to 6% when fully effective in March 2015.

Japanese banks with only domestic operations and bank holding companies the subsidiaries of which operate only within Japan are subject to the revised capital adequacy guidelines that have been applied from March 31, 2014, and those banks and bank holding companies are required to have a minimum Core Capital ratio of 4%. However, those banks and bank holding companies that apply the internal rating based approach are deemed to be banks and bank holding companies with international operations and are required to have a minimum Common Equity Tier 1 ratio of 4.5% on both a consolidated and non-consolidated basis.

Under the revised capital adequacy guidelines based on the Basel III rules that have been applied to banks and bank holding companies each with international operations from March 31, 2013, there are regulatory

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adjustments such as goodwill and other intangibles, deferred tax assets, investments in the capital of banking, financial and insurance entities etc. shall be deducted under certain conditions for the purpose of calculating capital adequacy ratios, and the requirements of regulatory adjustments were enhanced under the revised capital adequacy guidelines. For example, under the capital adequacy guidelines prior to the revision thereto under the Basel III rules, the maximum amount of net deferred tax assets under Japanese GAAP that major Japanese banks, including bank holding companies, could record without diminishing the amount of Tier 1 capital for purposes of calculating capital adequacy ratio was 20% of Tier 1 capital. Under the revised capital adequacy guidelines based on the Basel III rules, deferred tax assets that arise from temporary differences will be recognized as part of Common Equity Tier 1 capital, with recognition capped at 10% of Common Equity Tier 1 capital under certain conditions, while other deferred tax assets, such as those relating to net loss carryforwards, will be deducted in full from Common Equity Tier 1 capital net of deferred tax liabilities. These regulatory adjustments based on the Basel III rules began at 20% of the required deductions in the calculation of Common Equity Tier 1 capital in March 2014 and will be increased by 20% increments per year through March 2018 when the regulatory adjustments reach 100%.

The revised capital adequacy guidelines related to other requirements under the Basel III rules, such as the capital conservation buffer, have not yet been published.

Under the capital adequacy guidelines, banks and bank holding companies each with international operations are required to measure and apply capital charges with respect to their credit risks, market risks and operational risks.

Under the guidelines, banks and bank holding companies have several choices for the methodologies to calculate their capital requirements for credit risk, market risk and operational risk. Approval of the Financial Services Agency is necessary to adopt advanced methodologies for calculation, and Mizuho Financial Group started to apply the AIRB approach for the calculation of credit risk from the fiscal year ended March 31, 2009 and also apply the AMA for the calculation of operational risk from September 30, 2009.

For further information of the Capital Adequacy, see “Item 5. Operating and Financial Review and Prospects—Capital Adequacy—Regulatory Capital Requirements.”

Leverage Ratio

The Leverage Ratio framework is critical and complementary to the risk-based capital framework that will help ensure broad and adequate capture of both on- and off-balance sheet sources of banks’ leverage. This simple, non-risk-based measure will restrict the build-up of excessive leverage in the banking sector to avoid destabilizing deleveraging processes that can damage the broader financial system and the economy. Implementation of the leverage ratio requirements has begun with bank-level reporting to national supervisors of the leverage ratio and its components, and will proceed with public disclosure will be required starting 1, January 2015. Any final adjustments to the definition and calibration of the leverage ratio will be made by 2017, with a view to migrate to a Pillar 1 (minimum capital requirements) treatment on 1, January 2018 based on appropriate review and calibration.

Liquidity

Two minimum standards for funding liquidity will be introduced. The liquidity coverage ratio (“LCR”) is intended to promote resilience to potential liquidity disruptions over a thirty-day horizon and help ensure that global banks have sufficient, unencumbered, high-quality liquid assets (“HQLA”) to offset the net cash outflows it could encounter under an acute short-term stress scenario. The Group of Governors and Heads of Supervision agreed on a revised LCR standard on January 6, 2013, and the Basel Committee on Banking Supervision issued the text of the revised LCR standard on January 7, 2013. In accordance with the revised LCR standard, the stock of unencumbered HQLA is to comprise “Level 1” assets, which include cash, central bank reserves and certain

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marketable securities backed by sovereigns and central banks, and “Level 2” assets, which include certain government securities, covered bonds, corporate debt securities and, to a limited extent,, lower-rated corporate bonds, residential mortgage-backed securities and equities that meet certain conditions. “Level 2” assets will be subject to certain haircuts based on types of securities and credit ratings. The revised LCR standard is subject to phase-in arrangements pursuant to which the LCR is to be introduced on January 1, 2015 with a minimum requirement of 60%, rising in equal annual steps of 10 percentage points to reach 100% on January 1, 2019. The Basel Committee on Banking Supervision issued final requirements for LCR-related disclosures on January 12, 2014. The LCR disclosure standard requires banks to disclose their LCR in common templates from the date of publication of their first set of financial statements relating to balance sheet data dated on or after January 1, 2015. The net stable funding ratio (“NSFR”) requires a minimum amount of stable sources of funding at a bank relative to the liquidity profiles of the assets, as well as the potential for contingent liquidity needs arising from off-balance sheet commitments, over a one-year horizon. A minimum standard for NSFR, including any revision, will be introduced by January 2018. The Basel Committee on Banking Supervision will put in place rigorous reporting processes to monitor the ratios during the observation period that began in 2011. The Basel Committee on Banking Supervision issued a consultative document of the proposed revisions to NSFR with respect to (i) reduction of cliff effects within the measurement of funding stability, (ii) improvement of its alignment with LCR, and (iii) alternation of its calibration to focus greater attention on short-term, potentially volatile funding sources, on January 12, 2014.

Protection of Personal Information

The Personal Information Protection Act (Kojin Jouhou no Hogo ni kansuru Houritsu) (Act No. 57 of 2003, as amended) and related guidelines impose various requirements on businesses, including us, that use databases containing personal information, such as appropriate custody of such information and restrictions on information sharing with third parties. Non-compliance with the order issued by the Financial Services Agency to take necessary measures to comply with the law will subject us to criminal and/or administrative sanctions.

Prevention of Money Laundering

Under the Act Preventing Transfer of Profits Generated from Crime (Hanzai ni yoru Syueki no Iten Boushi ni kansuru Houritsu) (Act No. 22 of 2007, as amended), which addresses money laundering and terrorism concerns, financial institutions and other entities such as credit card companies are required to perform customer identification, submit suspicious transaction reports and maintain records of transactions. Certain amendments to the law became effective in April 2013, which tightened, among other things, customer identification requirements.

Act Concerning Protection of Depositors from Illegal Withdrawals Made by Forged or Stolen Cards

The Act Concerning Protection of Depositors from Illegal Withdrawals Made by Forged or Stolen Cards (Gizou Kaado tou oyobi Tounan Kaado tou wo Mochiite Okonawareru Fuseina Kikaishiki Yochokin Haraimodoshi tou karano Yochokinsha no Hogo tou ni kansuru Houritsu) (Act No. 94 of 2005, as amended) requires financial institutions to establish internal systems to prevent illegal withdrawals of deposits using forged or stolen bank cards. The act also requires financial institutions, among other matters, to compensate depositors for any amount illegally withdrawn using forged bankcards, unless the financial institution can verify that it acted in good faith without negligence and that there was gross negligence on the part of the relevant account holder.

United States

As a result of our operations in the United States, we are subject to extensive U.S. federal and state supervision and regulation. We engage in U.S. banking activities through Mizuho Bank’s New York, Chicago and Los Angeles branches and Houston and Atlanta representative offices. We also own one bank in the United States, Mizuho Bank (USA), as well as controlling interests in several other subsidiaries, including Mizuho Trust & Banking Co. (USA), which is engaged primarily in the trust and custody business, and Mizuho Securities USA Inc., a U.S. broker dealer engaged in the securities business.

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The USA PATRIOT Act of 2001 (the “PATRIOT Act”) contains measures to prevent, detect and prosecute terrorism and international money laundering by imposing significant compliance and due diligence obligations, creating new crimes and penalties and expanding the extraterritorial jurisdiction of the United States. In recent years, federal and state regulatory and law enforcement authorities have closely scrutinized the compliance by financial institutions with the Bank Secrecy Act and anti-money laundering rules.

Mizuho Financial Group and Mizuho Bank are financial holding companies (“FHCs”), and Mizuho Trust & Banking is a bank holding company, within the meaning of the U.S. Bank Holding Company Act of 1956, as amended (the “BHCA”), and are subject to regulation and supervision thereunder by the Board of Governors of the Federal Reserve System (the “Federal Reserve Board”). As a matter of law, these three companies are required to act as a source of financial strength to Mizuho Bank (USA) and Mizuho Trust & Banking Co. (USA). The BHCA generally prohibits us from acquiring, directly or indirectly, the ownership or control of more than 5% of any class of voting shares of any company engaged in the United States in activities other than banking or activities that are financial in nature or incidental or complementary to financial activity. This general prohibition is subject to certain exceptions, including an exception that permits us to acquire up to 100% of the voting interests in any company engaged in nonfinancial activities that we do not routinely manage, generally for a period of up to 10 years, under our merchant banking authority. In addition, U.S. regulatory approval is generally required for us to acquire more than 5% of any class of voting shares of a U.S. bank, savings association or bank holding company.

Mizuho Financial Group and the former Mizuho Corporate Bank, now Mizuho Bank, became FHCs in December 2006. FHC status under the BHCA permits banking groups in the United States to engage in comprehensive investment banking businesses, such as the underwriting of and dealing in corporate bonds, equities and other types of securities. FHC status enables our group to promote our investment banking business on a broader basis in the United States.

As a financial holding company, we are also subject to additional regulatory requirements. For example, we and each of our U.S. insured depository institution subsidiaries with operations in the United States must be “well capitalized,” meaning a Tier 1 risk-based capital ratio of at least 6% and a total risk-based capital ratio of at least 10%. We and each of our U.S. insured depository institution subsidiaries must also be “well managed,” including that they maintain examination ratings that are at least satisfactory. Further, Mizuho Financial Group and Mizuho Bank must also meet such capital standards as calculated under their home country standards (which must be comparable to the capital required for a U.S. bank) and must be well managed under standards comparable to those required for a U.S. bank. Failure to comply with such requirements would require us to prepare a remediation plan, and we would not be able to undertake new business activities or acquisitions based on our status as a financial holding company during any period of noncompliance without the prior approval of the Federal Reserve Board, and divestiture or termination of certain business activities, or termination of our U.S. branches and agencies, may be required as a consequence of failing to correct such conditions within 180 days.

U.S. branches, agencies and representative offices of foreign banks must be licensed, and are also supervised and regulated, by either a state banking authority or by the Office of the Comptroller of the Currency, the federal bank regulatory agency that charters and regulates national banks and federal branches and agencies of foreign banks. Each branch and representative office in the United States of Mizuho Bank is state-licensed. Under U.S. federal banking laws, state-licensed branches and agencies of foreign banks may engage only in activities that would be permissible for their federally-licensed counterparts, unless the Federal Reserve Board determines that the additional activity is consistent with sound practices. U.S. federal banking laws also subject state-licensed branches and agencies to the single-borrower lending limits that apply to federal branches and agencies, which generally are the same as the lending limits applicable to national banks, but are based on the capital of the entire foreign bank.

The New York branch of Mizuho Bank is subject to supervision, examination and regulation by the New York State Department of Financial Services as well as by the Federal Reserve Board. Except for a prohibition

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on such branch accepting retail deposits, a state-licensed branch generally has the same powers as a state-chartered bank in such state. New York State has an asset pledge requirement for branches equal to the greater of 1% of average total liabilities for the previous month or $2 million, provided that an institution designated as a “well-rated foreign banking corporation” is permitted to maintain a reduced asset pledge with a cap of $100 million. The New York State Department of Financial Services may require higher amounts for supervisory reasons. Each U.S. branch and representative office of Mizuho Bank is subject to regulation and examination by the state banking authority of the state in which it is located.

The deposits of Mizuho Bank (USA) are insured by the Federal Deposit Insurance Corporation (“FDIC”), and it is a state-chartered bank that is a member of the Federal Reserve System. As such, Mizuho Bank (USA) is subject to regulation, supervision and examination by the Federal Reserve Board and the New York State Department of Financial Services, as well as to relevant FDIC regulation.

The deposits of Mizuho Trust & Banking Co. (USA) are also FDIC-insured, and it is a state-chartered bank and trust company that is not a member of the Federal Reserve System. As such, Mizuho Trust & Banking Co. (USA) is subject to regulation, supervision and examination by the FDIC and the New York State Department of Financial Services.

In the United States, U.S.-registered broker-dealers are regulated by the U.S. Securities and Exchange Commission (the “SEC”). As a U.S.-registered broker-dealer, Mizuho Securities USA is subject to regulations that cover all aspects of the securities business, including sales methods, trade practices among broker-dealers, use and safekeeping of customers’ funds and securities, capital structure, recordkeeping, the financing of customers’ purchases and the conduct of directors, officers and employees.

In the United States, comprehensive financial regulatory reform legislation, titled the Dodd-Frank Wall Street Reform and Consumer Protection Act (the “Dodd Frank Act”), was signed into law by President Obama on July 21, 2010. Among other things, the Dodd-Frank Act directs the federal banking regulators to establish minimum leverage and risk-based capital requirements for insured depository institutions and depository institution holding companies.

The Dodd-Frank Act provides regulators with tools to impose greater capital, leverage and liquidity requirements and other prudential standards, particularly for financial institutions that pose significant systemic risk and bank holding companies with greater than $50 billion in consolidated assets. In imposing such heightened prudential standards on foreign banking organizations such as Mizuho Bank, the Federal Reserve Board is directed to take into account the principle of national treatment and equality of competitive opportunity, and the extent to which the foreign bank holding organization is subject to comparable home country standards. On February 18, 2014, the Federal Reserve Board finalized regulations that will impose enhanced prudential standards on certain large foreign banking organizations having a U.S. presence, such as Mizuho Bank. In particular, large foreign banking organizations, including us, and their U.S. operations are subject to risk management requirements, risk-based capital and leverage limits, capital stress testing requirements, liquidity requirements and, in certain circumstances, asset management requirements. Additionally, the Federal Reserve Board expects to finalize single counterparty credit limits and early remediation requirements for foreign banking organizations at a later date. In addition, foreign banking organizations with consolidated assets of $50 billion or more (excluding the assets of U.S. branches and agencies) will be required to create a separately capitalized top-tier U.S. intermediate holding company (“IHC”) that would hold all of its U.S. subsidiaries and be subject to certain capital, liquidity and other enhanced prudential standards on an IHC consolidated basis.

Under the so-called “Volcker Rule” provisions of the Dodd-Frank Act, insured depository institutions; insured depository institution holding companies; non-U.S. banks with branches in the United States, such as Mizuho Bank; and affiliates and subsidiaries of such entities (collectively, “banking entities”) will be prohibited from engaging in proprietary trading or from investing in or sponsoring private equity or hedge funds, subject to

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certain limited exceptions. Final regulations under the Volcker Rule were issued on December 10, 2013 and banking entities are expected to bring their activities and investments into compliance by July 21, 2015, absent an extension by the Federal Reserve Board.

The Dodd-Frank Act also provides an extensive framework for the regulation of over-the-counter (“OTC”) derivatives, including mandatory clearing and transaction reporting of certain OTC derivatives. In addition, entities that are swap dealers, security-based swap dealers, major swap participants, or major security-based swap participants are required to register with the SEC or the U.S. Commodity Futures Trading Commission (the “CFTC”), or both, and comply with capital, margin, business conduct, recordkeeping, and other requirements applicable to such entities. Although the CFTC has released final rules relating to various requirements of the Dodd Frank Act, many of the provisions are subject to further final rulemaking, and thus the Dodd-Frank Act’s ultimate impact remains unclear. New regulations could, among other things, restrict our ability to engage in derivatives transactions and increase the costs of using these instruments.

Under the so-called swap “push-out” provisions of the Dodd-Frank Act, the derivatives activities of U.S. banks and U.S. branch offices of foreign banks will be restricted. On June 5, 2013, the Federal Reserve Board approved an interim final rule clarifying the treatment of uninsured U.S. branches and agencies of foreign banks under this “push-out” provision. The interim final rule clarified that uninsured U.S. branches and agencies of foreign banks will be treated as insured depository institutions with respect to this “push-out” provision, including eligibility for a transition period of up to 24 months to comply and for certain statutory exceptions. The interim final rule is effective as of June 5, 2013.

Mizuho Capital Markets Corporation and Mizuho Securities USA are registered with the CFTC as swap dealers as a result of their swap activities with US persons. As a result, Mizuho Capital Markets Corporation and Mizuho Securities USA are subject to certain increased entity-level and transaction-level regulation by the CFTC, including with respect to registration requirements, additional recordkeeping and reporting obligations, risk management, clearing, trade execution, position limits, monitoring, capital and margin thresholds and internal and external business conduct standards, and will become subject to additional regulations under the Dodd-Frank Act as such regulations go into effect or following adoption of additional applicable regulations by the CFTC and/or the SEC.

Disclosure Pursuant to Section 219 of the Iran Threat Reduction and Syria Human Rights Act

Section 219 of the Iran Threat Reduction and Syria Human Rights Act of 2012 (“Section 219”) added Section 13(r) to the U.S. Securities Exchange Act of 1934, requiring each SEC reporting issuer to disclose in its annual and, if applicable, quarterly reports whether it or any of its affiliates have knowingly engaged in specified activities, transactions or dealings relating to Iran or with the Government of Iran or certain designated persons or entities involved in terrorism or the proliferation of weapons of mass destruction during the period covered by such filing. Section 219 requires disclosure even of certain activities not prohibited by U.S. or other law and even if such activities were conducted outside the United States by non-U.S. affiliates in compliance with local law.

Our affiliate Mizuho Bank (including when operated as the former Mizuho Corporate Bank prior to its merger with the former Mizuho Bank) is our only affiliate to have engaged in activity that is relevant for this purpose. Mizuho Bank maintains compliance policies and procedures to conform its operations to all applicable economic sanctions laws and regulations, and has dedicated substantial resources to this effort. In that context, and only after confirming that such transactions did not involve prohibited or sanctionable activity under U.S. or other economic sanctions, non-U.S. branches of Mizuho Bank (including when operated as the former Mizuho Corporate Bank) engaged in a limited number of activities reportable under Section 219 during the period covered by this annual report, as described below. No U.S. branches of Mizuho Bank were involved in any of these activities.

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Legacy Guarantees and Loan Obligations

During the period covered by this disclosure, Mizuho Bank was party to two legacy counter guarantees that were opened in connection with activities of its customers for the benefit of Iranian banks. When such guarantees were entered into, the banks in question had not been designated under U.S. Executive Orders (“E.O.”) 13224 or 13382, although they were subsequently so designated. Mizuho Bank maintained these guarantees post-designation only after confirming that such transactions did not involve prohibited or sanctionable activity under U.S. or other economic sanctions and after obtaining licenses issued by Japan’s Ministry of Finance where necessary. As contractual obligations, these guarantees cannot be exited by Mizuho Bank unilaterally until there is full performance under the contract that is supported by the counter guarantees. In the fiscal year ended March 31, 2014, Mizuho Bank received fees of approximately ¥0.6 million attributable to these guarantees and net profits of less than that amount. Mizuho Bank continues to seek to terminate these counter guarantees. Mizuho Bank has no intention to enter into any further similar guarantees.

In addition, Mizuho Bank acted as an administrative agent under a syndicated loan extended to an Iranian bank that was later designated under E.O. 13382. During the period covered by this disclosure, Mizuho Bank did not act as the lender and also received no fees for acting as administrative agent. The loan expired in April 2013 upon repayment of the debt and its transfer to the lender in accordance with applicable laws and regulations. Mizuho Bank does not intend to enter into any further similar loans.

Activities through Correspondent Banking Accounts

In the fiscal year ended March 31, 2014, Mizuho Bank conducted a limited number of fund transfers through accounts it maintains for or at a limited number of Iranian banks designated under E.O. 13224 or 13382 and a limited number of other banks related to the Government of Iran. Mizuho Bank processed these transfers only after confirming that such transactions did not involve prohibited or sanctionable activity under U.S. or other economic sanctions and obtaining licenses issued by Japan’s Ministry of Finance where necessary. Estimated gross revenue to Mizuho Bank in the fiscal year ended March 31, 2014 attributable to this activity, excluding the humanitarian transactions described below, was approximately ¥0.1 million, with a net profit of less than that amount. Mizuho Bank will continue processing transfers through these accounts only under the limited circumstances where the transfer would conform to Mizuho Bank’s compliance policies and procedures, applicable international sanctions laws, and after obtaining a license issued by Japan’s Ministry of Finance where necessary.

Humanitarian Transactions through Correspondent Banking Accounts

In addition, in accordance with the Joint Plan of Action (JPOA) agreed between EU3+3 (France, Germany, the United Kingdom, China, Russia and the United States) and Iran in November 2013, Mizuho Bank has been providing settlement services in connection with humanitarian trade to assist in meeting Iran’s domestic needs, namely food, agricultural commodities, medicines and medical devices, since March 2014. The overall framework for these settlement services is based on an agreement between the U.S. and Japanese authorities, and the relevant U.S. regulator authorizes that the settlement services are in compliance with applicable U.S. laws and regulations. The purchasers of the humanitarian goods were entities in or affiliated with Iran, including the Iranian government. The sellers of the humanitarian goods were entities permitted by U.S. and Japanese regulators. These transactions did not involve U.S. dollars nor clearing services of U.S. banks for the settlement of payments. These transactions were conducted through the use of special purpose yen accounts maintained with Mizuho Bank outside of the United States by Iranian financial institutions that are controlled by the Iranian government. Furthermore, in connection with these transactions, the Iranian financial institutions have increased the amount of their non-U.S. dollar deposits at Mizuho Bank used for settlement purposes. Estimated gross revenue to Mizuho Bank in the fiscal year ended March 31, 2014 attributable to this activity was approximately ¥2 million, with a net profit of less than that amount.

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Mizuho Bank intends to continue to provide these remittance and other settlement services in connection with the exports of humanitarian goods to Iran to the extent that U.S. and Japanese regulators continue to make such requests.

Other Jurisdictions

Our operations elsewhere in the world are subject to regulation and control by local supervisory authorities, including local central banks.

4.C. Organizational Structure

The following diagram shows our basic corporate structure as of March 31, 2014:

Notes:

(1) On July 1, 2013, a merger between the former Mizuho Bank and the former Mizuho Corporate Bank came into effect with the former Mizuho Corporate Bank as the surviving entity, which was renamed Mizuho Bank upon the merger.

(2) DIAM, in which we have a 50.0% equity interest, is an equity-method affiliate of ours.

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The following table sets forth information with respect to our principal consolidated subsidiaries as of March 31, 2014

Name	Country of organization	Main business	Proportion of ownership interest (%)			Proportion of voting interest (%)
Domestic
Mizuho Bank, Ltd.	Japan	Banking		100.0	%		100.0	%
Mizuho Trust & Banking Co., Ltd.	Japan	Trust and banking		100.0	%		100.0	%
Mizuho Securities Co., Ltd.	Japan	Securities		95.8	%		95.8	%
Trust & Custody Services Bank, Ltd.	Japan	Trust and banking		54.0	%		54.0	%
Mizuho Asset Management Co., Ltd.	Japan	Investment management		98.7	%		98.7	%
Mizuho Research Institute Ltd.	Japan	Research and consulting		98.6	%		98.6	%
Mizuho Information & Research Institute, Inc.	Japan	Information technology		91.5	%		91.5	%
Mizuho Financial Strategy Co., Ltd.	Japan	Consulting		100.0	%		100.0	%
Mizuho Private Wealth Management Co., Ltd.	Japan	Consulting		100.0	%		100.0	%
Mizuho Credit Guarantee Co., Ltd.	Japan	Credit guarantee		100.0	%		100.0	%
Mizuho Factors, Limited	Japan	Factoring		100.0	%		100.0	%
Shinko Asset Management Co., Ltd.	Japan	Investment management		94.3	%		94.8	%
Mizuho Trust Realty Company Limited	Japan	Real estate agency		86.7	%		76.9	%
Defined Contribution Plan Services Co., Ltd.	Japan	Pension plan-related business		60.0	%		60.0	%
Mizuho-DL Financial Technology Co., Ltd.	Japan	Application and Sophistication of Financial Technology		60.0	%		60.0	%
UC Card Co., Ltd.	Japan	Credit card		51.0	%		51.0	%
Mizuho Capital Co., Ltd.	Japan	Venture capital		50.0	%		50.0	%
Overseas
Mizuho International plc	U.K.	Securities and banking		100.0	%		100.0	%
Mizuho Bank (China), Ltd.	China	Banking		100.0	%		100.0	%
Mizuho Securities Asia Limited	China	Securities		100.0	%		100.0	%
Mizuho Bank Nederland N.V.	Netherlands	Banking and securities		100.0	%		100.0	%
Mizuho Securities USA Inc.	U.S.A.	Securities		100.0	%		100.0	%
Mizuho Trust & Banking (Luxembourg) S.A.	Luxembourg	Trust and banking		100.0	%		100.0	%
Mizuho Bank (USA)	U.S.A.	Banking		100.0	%		100.0	%
Mizuho Bank (Switzerland) Ltd	Switzerland	Trust and banking		100.0	%		100.0	%
Mizuho Trust & Banking Co. (USA)	U.S.A.	Trust and banking		100.0	%		100.0	%
Mizuho Capital Markets Corporation	U.S.A.	Derivatives		100.0	%		100.0	%
PT. Bank Mizuho Indonesia	Indonesia	Banking		99.0	%		99.0	%

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4.D. Property, Plant and Equipment

The following table shows the breakdown of our premises and equipment at cost as of March 31, 2013 and 2014:

	At March 31,
	2013		2014
	(in millions of yen)
Land	¥	268,948	¥	410,739
Buildings		743,473		800,680
Equipment and furniture		418,647		435,655
Leasehold improvements		90,306		92,052
Construction in progress		23,875		35,789
Software		657,702		725,287
Total		2,202,951		2,500,202
Less: Accumulated depreciation and amortization		1,110,962		1,143,608
Premises and equipment—net	¥	1,091,989	¥	1,356,594

Our head office is located at 1-5-5 Otemachi, Chiyoda-ku, Tokyo, Japan. The headquarter buildings of Mizuho Financial Group and Mizuho Bank are each leased from a third party.

The total area of land related to our material office and other properties at March 31, 2014 was approximately 847,000 square meters for owned land and approximately 20,000 square meters for leased land.

Our owned land and buildings are primarily used by our branches. Most of the buildings and land owned by us are free from material encumbrances.

ITEM 4A. UNRESOLVED STAFF COMMENTS

None.

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ITEM 5. OPERATING AND FINANCIAL REVIEW AND PROSPECTS

The following discussion and analysis should be read in conjunction with “Item 3.A. Key Information—Selected Financial Data,” “Selected Statistical Data” and our consolidated financial statements, including the notes thereto, included elsewhere in this annual report.

Table of Contents for Item 5.

	Page
Overview		50
Critical Accounting Estimates		62
Operating Results		65
Business Segments Analysis		77
Geographical Segment Analysis		86
Financial Condition		89
Liquidity		99
Capital Adequacy		100
Off-balance-sheet Arrangements		108
Tabular Disclosure of Contractual Obligations		112
Recent Accounting Pronouncements		112
Reconciliation with Japanese GAAP		113

Overview

The Mizuho Group

We provide a broad range of financial services in domestic and overseas markets. The principal activities and subsidiaries are the following:

• Mizuho Bank provides a wide range of financial products and services mainly in relation to deposits, lending and exchange settlement to individuals, SMEs, large corporations, financial institutions, public sector entities and foreign corporations, including foreign subsidiaries of Japanese corporations;

• Mizuho Trust & Banking provides products and services related to trust, real estate, securitization and structured finance, pension and asset management and stock transfer agency; and

• Mizuho Securities provides full-line securities services to individuals, corporations, financial institutions and public sector entities.

We also provide products and services such as those related to trust and custody, asset management, private banking, research services, information technology-related services and advisory services for financial institutions through various subsidiaries and affiliates.

In July 2013, the former Mizuho Bank and the former Mizuho Corporate Bank merged, and the former Mizuho Corporate Bank, the surviving company, changed its trade name to Mizuho Bank. The purpose of the merger was to become able to provide directly and promptly diverse and functional financial services to customers of both banks, utilizing the current “strengths” and “advantages” and to continue to improve customer services by further enhancing group collaboration among the banking, trust and securities functions. At the same time, we aim to realize further enhancements of the consolidation of group-wide business operations and optimization of management resources, such as work force and branch network, by strengthening group governance and improving group management efficiency.

In June 2014, we transformed into a “Company with Committees,” as defined in the Companies Act, in order to further enhance corporate governance through strengthening the supervisory function of the Board of Directors over the execution of our business and improving the transparency of management processes, and in order to enhance the flexibility of management by facilitating swifter decision making.

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For a further discussion of our business and group organization, see “Item 4.B. Information on the Company—Business Overview.”

Principal Sources of Income and Expenses

Net Interest Income

Net interest income arises principally from the lending and deposit-taking and securities investment activities of our banking subsidiaries and is a function of:

• the amount of interest-earning assets and interest-bearing liabilities;

• the average interest rate spread (the difference between the average yield of interest earned on interest-earning assets and the average rate of interest paid on interest-bearing liabilities); and

• the general level of interest rates.

Principal items constituting interest-earning assets include loans, investments, trading account assets, receivables under resale agreements and receivables under securities borrowing transactions. Principal items constituting interest-bearing liabilities include deposits, trading account liabilities, short-term borrowings (such as payables under repurchase agreements and payables under securities lending transactions) and long-term debt.

Provision (Credit) for Loan Losses

Provision (credit) for loan losses is charged against (or credited to) income to keep the allowance for loan losses at a level that is appropriate to absorb probable losses inherent in the credit portfolio. For a description of the approach and methodology used to establish the allowance for loan losses, see “—Financial Condition—Allowance for loan losses.”

Noninterest Income

Noninterest income consists mainly of fees and commissions, investment gains (losses)—net, trading account gains (losses)—net and foreign exchange gains (losses)—net.

Fees and commissions include the following:

• fees and commissions from securities-related business, including brokerage fees and commissions related to securities underwriting, fees and commissions related to investment trusts and individual annuities and other securities-related activities;

• fees and commissions from deposits, debentures and lending business, which consist mostly of fees and commissions related to our loan businesses, including fees related to the arrangement of syndicated loans and other financing transactions such as arrangement fees related to management buy-out transactions and fees related to deposits such as account transfer charges;

• fees and commissions from remittance business, including service charges for domestic and international funds transfers and collections;

• trust fees, including trust fees earned primarily through fiduciary asset management and administration services for corporate pension plans and investment funds; and

• fees for other customer services, including fees related to our agency businesses, such as administration fees related to Japan’s principal public lottery program, as well as guarantee fees and others.

Investment gains (losses)—net primarily include net gains and losses on sales of marketable securities, such as equity and bond investments. In addition, impairment losses are recognized when management concludes that declines in fair value of investments are other-than-temporary.

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Trading account gains (losses)—net include gains and losses from transactions undertaken for trading purposes, including both market making for customers and proprietary trading, or transactions through which we seek to capture gains arising from short-term changes in market value. Trading account gains (losses)—net also include gains and losses related to changes in the fair value of derivatives and other financial instruments not eligible for hedge accounting under U.S. GAAP that are utilized to offset mainly interest rate risk related to our various assets and liabilities, as well as gains and losses related to changes in the fair value of foreign currency-denominated available-for-sale securities that are elected for fair value treatment under ASC 825. For further information on the fair value option, see note 28 to our consolidated financial statements included elsewhere in this annual report.

Foreign exchange gains (losses)—net mainly include translation gains and losses related to our foreign currency-denominated assets and liabilities and gains and losses related to foreign exchange trading activities, including market making for customers and proprietary trading.

Noninterest Expenses

Noninterest expenses primarily include salaries and employee benefits, general and administrative expenses, occupancy expenses and fees and commission expenses.

Salaries and employee benefits include expenses incurred for salaries, bonuses and compensation to directors and employees. They also include expenses related to pension and other employee retirement benefit plans.

The principal items included in general and administrative expenses are amortization of software, tax expenses such as consumption tax and property tax that are not income taxes and other expenses, including premiums for deposit insurance.

The principal items included in occupancy expenses are expenses related to premises and equipment, including depreciation, losses on disposal and lease expenses.

The principal items included in fees and commission expenses are fees and commission expenses for remittance services, which mainly include commission expenses paid in connection with remittance transactions and securities-related businesses, which mainly include transactions costs such as brokerage fees paid.

Operating Environment

We operate principally in Japan, and our performance has generally tracked the macro economy of Japan. The recovery of the global economy remained weak during the fiscal year ended March 31, 2012 due to destabilization of the international financial and capital markets caused by the fiscal problems in Europe, but there were visible signs of recovery as concerns over the Euro region’s debt problems eased to some degree in the fiscal year ended March 31, 2013.

In the fiscal year ended March 31, 2014, the gradual recovery in the global economy continued, although weakness in the recovery is seen in some regions, and is expected to continue particularly in the major industrialized countries. In the United States, signs of recovery in the economy have been seen in the form of improved production and employment as a whole as well as steady consumption. It is expected that the gradual recovery in the economy will continue, with a reduction in the downward pressure on the fiscal front, while the possible effects of the scaling back of monetary easing policy requires continued monitoring. In Europe, the economy is on a recovery trend with a continuing steady recovery in the United Kingdom and improved business conditions in the Euro area. Although it is expected that the economies of the region, led by exports and production, will continue to follow a track to recovery, the effect of the unstable situation in Ukraine as well as the effects of debt problems and high unemployment rates require continued monitoring. In Asia, the economy is strong as a whole due to favorable results in exports with the continuing recovery in the major industrialized

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countries. In China, although the economy continues to expand in a stable manner, the growth rate has declined compared to recent historic levels, and a possible further slowdown may occur as the growth rate of investments in manufacturing and real estate declined due mainly to adjustment pressures on capital assets, including those as a result of excess capacity. With respect to other emerging countries, there are concerns that the momentum for economic growth will be lost for the time being due to a tendency toward tight monetary policies against the backdrop of concerns over currency depreciation and inflation in some regions, including outside Asia. In Japan, the economy has been recovering gradually due to improved export profitability resulting from the weaker Japanese yen and the positive effects of the expansionary fiscal and monetary policies adopted by the Japanese government. Although some negative impact from the April 2014 consumption tax increase was observed, the Japanese economy is expected to pick up along with the gradual recovery of the global economy.

Key indicators of Japanese economic conditions in recent periods include the following:

• Japan’s real gross domestic product on a year-on-year basis increased by 0.3%, 0.7% and 2.3% in the fiscal years ended March 31, 2012, 2013 and 2014, respectively. Japan’s real gross domestic product on a quarterly basis, compared to the corresponding period of the previous year, increased consecutively from the first quarter of calendar 2013 through the first quarter of calendar 2014.

• The Japanese government stated in its monthly economic reports from January through March 2014 that “the Japanese economy is recovering at a moderate pace.” The reports from April through June 2014 stated that “the Japanese economy is on a moderate recovery trend, while some weak movements are seen lately due to a reaction after a last-minute rise in demand before a consumption tax increase,” and in July 2014, it stated that “the Japanese economy is on a moderate recovery trend and the reaction after a last-minute rise in demand before the consumption tax increase is easing.”

• Japan’s core nationwide consumer price index was unchanged in the fiscal year ended March 31, 2012, but decreased by 0.2% in the fiscal year ended March 31, 2013, and increased by 0.8% in the fiscal year ended March 31, 2014 compared to the previous year.

• The Japanese government stated in its monthly economic reports from November 2009 through April 2013 that the Japanese economy was in a mild deflationary phase, but the reports in May and June 2013 added that “signs of change can be seen in some areas recently.” Furthermore, the report in July 2013 stated that “the deflation is easing,” followed by the reports from August through November 2013 which stated that “the deflation is ending.” In December 2013 and January 2014, they stated that “prices hold firm.” The reports in February and March 2014 strengthened the positive tone to state that “prices are rising moderately” and in April and May 2014, they stated that “consumer prices are rising moderately” and in June and July 2014 added that “domestic corporate goods prices are rising moderately recently.”

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The following chart shows the growth rates of Japan’s gross domestic product on a year-on-year basis and Japan’s core nationwide consumer price indices from the first quarter of 2011 through the first quarter of 2014:

• In January 2013, the Bank of Japan announced that it would set a “price stability target” at 2% in terms of the year-on-year rate of change in the consumer price index and introduced the “open-ended asset purchasing method” under the asset purchase program, pursuant to which financial assets will be purchased on a monthly basis without setting any termination date, for the purpose of taking additional steps to provide monetary accommodation decisively. Furthermore, the Japanese government and the Bank of Japan released a joint statement that they would strengthen their policy coordination and work together in order to overcome deflation early and achieve sustainable economic growth with price stability. In April 2013, the Bank of Japan announced that it would introduce the “quantitative and qualitative monetary easing” to enter a new phase of monetary easing and continue with the easing that aims to achieve the price stability target of 2% until that target is maintained in a stable manner. Under the easing, the Bank of Japan announced that it would change the main operating target for money market operations from the uncollateralized overnight call rate to the monetary base, which is to be increased at an annual pace of about ¥60-70 trillion. In addition, the Bank of Japan announced that it would expand its purchases of Japanese government bonds, of all maturities including 40-year bonds, to be increased at an annual pace of about ¥50 trillion and terminate the asset purchase program which would be absorbed into those purchases of the bonds. Furthermore, the Bank of Japan announced that it would expand its purchases of ETFs and Japan real estate investment trusts so that their amounts outstanding would be increased at an annual pace of ¥1 trillion and ¥30 billion, respectively.

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The following charts show movements in long-term rates from January 2011 to June 2014, represented by the yield on newly issued 10-year Japanese government bonds, and in short-term interest rates from January 2011 to June 2014, represented by the three-month Tokyo interbank offered rate, or TIBOR, and the uncollateralized overnight call rate used in the interbank market:

• According to the Bank of Japan, the aggregate monthly average balance of bank loans compared with that of the previous year started to increase in October 2011 and has continued to increase, with the rate of increase gradually rising, through March 2014.

• The CDS index called Markit iTraxx Japan, which is composed of 50 of the most liquid investment grade CDSs for Japanese entities, fell to 83.6 basis points as of March 31, 2014 from 113.9 basis points as of March 29, 2013, and further fell to 67.3 basis points as of June 30, 2014. For information on

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financial transactions for hedging in relation to credit derivatives, see “Item 3.D. Key Information—Risk Factors—Risks Relating to Our Business—Financial transactions entered into for hedging and other similar purposes could adversely affect our financial condition and results of operations.”

• According to Teikoku Databank, a Japanese research institution, there were approximately 11,400 corporate bankruptcies in the fiscal year ended March 31, 2012, involving approximately ¥3.9 trillion in total liabilities, approximately 10,700 corporate bankruptcies in the fiscal year ended March 31, 2013, involving approximately ¥2.9 trillion in total liabilities, and approximately 10,100 corporate bankruptcies in the fiscal year ended March 31, 2014, involving approximately ¥2.7 trillion in total liabilities. The number of corporate bankruptcies decreased from a year earlier for the fifth consecutive year, and the amount of total liabilities marked the lowest level in the past ten years.

• According to the Tokyo Stock Exchange, or the TSE, the aggregate ordinary profits and net income of all companies listed on the TSE with a March 31 fiscal year end, excluding financial institutions and companies newly listed during the relevant fiscal year, increased from ¥22.1 trillion and ¥8.9 trillion, respectively, for the fiscal year ended March 31, 2012, to ¥23.5 trillion and ¥10.4 trillion, respectively, for the fiscal year ended March 31, 2013, and increased to ¥33.2 trillion and ¥20.4 trillion, respectively, for the fiscal year ended March 31, 2014.

• According to the Bank of Japan, total financial assets of households increased from ¥1,520.7 trillion as of March 31, 2012 to ¥1,578.7 trillion as of March 31, 2013 and further increased to ¥1,630.4 trillion as of March 31, 2014. The following chart shows the amount of total financial assets of households and breakdown based on type of financial asset as of the ends of the first quarter of 2011 through the first quarter of 2014:

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• The Nikkei Stock Average, which is an average of the price of 225 stocks listed on the Tokyo Stock Exchange, increased by 3.4% to ¥10,083.56 during the fiscal year ended March 31, 2012, followed by a 23.0% increase to ¥12,397.91 during the fiscal year ended March 31, 2013 and a 19.6% increase to ¥14,827.83 during the fiscal year ended March 31, 2014. Thereafter, the Nikkei Stock Average further increased to ¥15,162.10 as of June 30, 2014. The following chart shows the daily closing price of the Nikkei Stock Average from January 2011 to June 2014:

• The Japanese yen to U.S. dollar spot exchange rate, according to the Bank of Japan, was ¥82.17 to $1.00 as of March 30, 2012, ¥94.04 to $1.00 as of March 29, 2013 and ¥102.98 to $1.00 as of March 31, 2014. Thereafter, the yen strengthened to ¥101.39 to $1.00 as of June 30, 2014. The following chart shows the yen/dollar spot rate of 5 p.m. Tokyo time published by the Bank of Japan from January 2011 to June 2014:

• According to the Ministry of Land, Infrastructure, Transport and Tourism of Japan, housing starts in Japan increased by 2.7%, 6.2% and 10.6% in the fiscal years ended March 31, 2012, 2013 and 2014, respectively.

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• According to the Ministry of Land, Infrastructure, Transport and Tourism of Japan, the average published land prices in Japan decreased by 2.3%, 1.6% and 0.6% during calendar years 2011, 2012 and 2013, respectively.

Capital Improvements

All yen figures in this subsection are truncated.

We have been implementing “disciplined capital management” by pursuing the optimal balance between “strengthening of stable capital base” and “steady returns to shareholders” as described below.

Strengthening of Stable Capital Base

In the fiscal year ended March 31, 2014, we strengthened our capital base mainly as a result of earning ¥688.4 billion of consolidated net income (under Japanese GAAP).

With respect to redemptions of previously issued securities, since April 2013, we have made redemptions of various securities that are eligible Tier1/Tier2 capital instruments subject to phase-out arrangements under Basel III upon the arrival of their respective initial optional redemption dates or their respective maturity dates. With respect to Tier 1 capital, in July 2013, we acquired and subsequently cancelled all ¥36.9 billion of the thirteenth series class XIII preferred stock. In June 2014, we redeemed $850 million and ¥139.5 billion of non-dilutive Tier 1 preferred securities that were issued by our overseas special purpose companies in February 2009 and June 2009, respectively. With respect to Tier 2 capital, in February 2014, we redeemed ¥60.0 billion of dated subordinated bonds that were issued by the former Mizuho Corporate Bank in February 2004, and in March 2014, we redeemed ¥15.2 billion of dated subordinated bonds that were issued by Mizuho Trust & Banking in March 2009. In April 2014, we redeemed $1.5 billion of dated subordinated bonds that were issued by our overseas special purpose company in March 2004. In June 2014, we redeemed ¥66.0 billion of dated subordinated bonds that were issued by the former Mizuho Corporate Bank in June 2009.

With respect to new issuances, in March 2014, our overseas special purpose company issued $1.5 billion of dated subordinated bonds with a write-down feature that are Basel III-eligible Tier 2 capital instruments. In July 2014, Mizuho Financial Group issued ¥100.0 billion of dated subordinated bonds with a write-down feature that are Basel III-eligible Tier 2 capital instruments through public offerings to wholesale investors in Japan.

The new capital regulations under Basel III were implemented beginning on March 31, 2013. Our Common Equity Tier 1 capital ratio under Basel III as of March 31, 2014 was 8.79%.

We aim to increase, by March 31, 2016, to a level that enables us to secure stably our Common Equity Tier 1 capital ratio under Basel III of 8% or higher (on a fully-effective basis and including the outstanding balance of the eleventh series class XI preferred stock, which was ¥312.6 billion as of March 31, 2014, that will become mandatorily converted into common stock, and will thus be fully recognized as Common Equity Tier 1 capital by July 2016). We believe that we will be able to secure a sufficient Common Equity Tier 1 capital ratio under Basel III as of March 31, 2019 when it becomes fully effective pursuant to its phase-in implementation. The foregoing target is based on capital regulations that have been announced to date.

The foregoing statements include forward-looking statements and are subject to risks, uncertainties and assumptions. See “Forward-looking Statements” and “Item 3.D. Key Information—Risk Factors.”

Steady Returns to Shareholders

We paid cash dividends with respect to the fiscal year ended March 31, 2014 of ¥6.5 per share of common stock (including interim dividend payments of ¥3), which was an increase of ¥0.5 per share from the previous fiscal year.

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With the results of the fiscal year ended March 31, 2014, we believe that we have reached a certain capital level that can support our future growth strategy. In and after the fiscal year ending March 31, 2015, we continuously consider the optimum balance between “strengthening of stable capital base” and “steady returns to shareholders.” We will comprehensively consider the business environment such as the Mizuho group’s business results, profit base, capital, and domestic and international regulation trends such as the Basel framework and determine cash dividend payments for each term.

Business Trends

Based on our current operating environment and management focus, we believe that the trends that are most significant to our current and future results of operations include the following:

Loans and Deposits

Loan volume

Our total loan balance increased on a year-on-year basis in the fiscal year ended March 31, 2014 due mainly to an increase in overseas loans. The increase in overseas loans was due mainly to increases in loans to commercial and industrial, mainly in Asia, and a roughly equal effect of the translation impact of the depreciation of the yen against other major currencies.

Margins between loans and deposits

In April 2013, the Bank of Japan announced that it would introduce the “quantitative and qualitative monetary easing” to enter a new phase of monetary easing both in terms of quantity and quality, and the uncollateralized overnight call rate has been maintained at around 0 to 0.1% for several years. Reflecting a decline in short-term interest rate levels of the yen, the average yield on domestic loans decreased from 1.27% in the fiscal year ended March 31, 2013 to 1.17% in the fiscal year ended March 31, 2014, and the average rate on domestic interest-bearing deposits decreased from 0.08% to 0.07%.

Provision (credit) for loan losses

We recorded a credit for loan losses of ¥126 billion in the fiscal year ended March 31, 2014 compared to a provision for loan losses of ¥140 billion in the fiscal year ended March 31, 2013. The change was due primarily to a decrease in allowance for loan losses on domestic impaired loans as a result of upgrades and collections related to some borrowers and allowance for loan losses on non-impaired loans reflecting upgrades in the obligor categories of a broad range of borrowers mainly through our credit management activities, including business revitalization support for borrowers, reflecting the continuing gradual recovery of the Japanese economy as described in “—Overview—Operating Environment.” The amount of provision for loan losses in future fiscal years will depend largely on trends in the credit quality of borrowers, which in turn will be affected by the domestic and global economic environment and other factors, and changes in the value of collateral on our loans.

Fees and Commissions

For the fiscal year ended March 31, 2013, fees and commissions increased by ¥38 billion from the previous fiscal year to ¥613 billion due mainly to an increase in fees and commissions from securities-related business, such as those related to equity securities transactions, investment trust and individual annuities as a result of a recovery of the stock markets, and an increase in fees and commissions from deposits, debentures and lending business, such as those associated with domestic syndicated loans. For the fiscal year ended March 31, 2014, fees and commissions increased by ¥63 billion from the previous fiscal year to ¥676 billion due mainly to an increase in fees and commissions from securities-related business, such as those related to investment trusts and individual annuities as a result of the upturn in domestic stock markets, and an increase in fees for other customer

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services. The amount of fees and commissions from securities-related business, a key component within fees and commissions, is significantly affected by the performance of domestic stock markets, with strong market performance generally having a positive effect on our fees and commissions and vice versa.

Debt and Equity Securities Portfolio

The amount of our funding through deposits significantly exceeds our total loans. As a result, we allocate a significant portion of such excess among investments in debt securities, including Japanese government bonds and investments in equity securities consisting mainly of common stock of Japanese listed company customers. We also hold some credit and alternative investments for the purpose of diversifying our risks and expanding our income sources.

Increases in long-term interest rates generally lead to a decline in the fair value of our portfolio of debt securities, a vast majority of which consists of Japanese government bonds. As of March 31, 2014, we had a total of ¥27,227 billion of available-for-sale debt securities within our investments, of which ¥22,056 billion was Japanese government bonds. Changes in fair value of such available-for-sale debt securities are reflected in accumulated other comprehensive income, net of tax in equity or, in the case of other-than-temporary impairments, charged to income as an impairment loss. We had ¥36,275 billion and ¥27,227 billion of available-for-sale debt securities as of March 31, 2013 and 2014, respectively, and net unrealized gains of ¥148 billion and ¥60 billion were reflected in accumulated other comprehensive income, net of tax as of such dates, respectively. We earned investment gains related to bonds of ¥91 billion in the fiscal year ended March 31, 2013 and ¥60 billion in the fiscal year ended March 31, 2014. The decrease in investment gains related to bonds was due mainly to a decrease in gains on sales of bonds, which reflected a rise in long-term interest rates of the yen and certain other major currencies. As the Bank of Japan announced a “price stability target” of 2% in January 2013 and the changes in interest rates that could result may have a substantial impact on the value of our Japanese government bond portfolio, in order to prepare for the risk of sudden and significant future interest rate rise, we continue to manage our Japanese government bond portfolio conservatively by managing the average remaining period of our portfolio and strengthening risk management including through the use of internal stress tests.

Because the size of our portfolio of marketable equity securities is substantial, we are subject to significant equity market risk, as increases in unrealized gains and losses related to changes in the fair value of available-for-sale marketable equity securities are reflected in accumulated other comprehensive income, net of tax in equity or, in the case of other-than-temporary impairments to fair value, charged to income as an impairment loss. As of March 31, 2012, 2013 and 2014, we recorded net unrealized gains related to marketable equity securities of ¥960 billion, ¥1,440 billion and ¥1,754 billion, respectively, in accumulated other comprehensive income, net of tax in equity. For the fiscal years ended March 31, 2012, 2013 and 2014, impairment losses on available-for-sale securities were ¥117 billion, ¥76 billion and ¥5 billion, respectively, of which impairment losses on marketable equity securities were ¥110 billion, ¥72 billion and ¥4 billion, respectively. The decrease in impairment losses on marketable equity securities in the fiscal year ended March 31, 2014 was due mainly to an upturn in domestic stock market condition during such fiscal year. We plan to continue managing the size of our stock portfolio in light of the equity market risk that it subjects us to.

Costs and Expenses

In the fiscal year ended March 31, 2014, general and administrative expenses increased by ¥47 billion from the previous fiscal year to ¥487 billion due mainly to an increase in IT-related costs as a result of the commencement of depreciation relating to the common operational infrastructure of the new IT systems platform, as well as an increase in overseas and advertising expenses. In the fiscal year ended March 31, 2014, salaries and employee benefits increased by ¥15 billion from the previous fiscal year to ¥587 billion due mainly to an increase in overseas personnel expenses, offset in part by a decrease in employee retirement benefit expenses as a result of a decrease in the amortization of net actuarial loss, which primarily reflects past recoveries of the fair value of plan assets and an increase in expected return on plan assets, which reflects various

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aspects of long-term prospects for the economy, historical performance of investments of plan assets and the market environment, including stock market conditions, at the beginning of the fiscal year.

Others

Exposure to Certain European Countries (GIIPS)

In Europe, fiscal problems in certain countries including Greece, Ireland, Italy, Portugal and Spain, have affected the financial system and the real economy, and the uncertainty concerning European economic activity continues to present a risk of a downturn in the world economy, though it has been calming down steadily. As of March 31, 2014, our exposure to obligors in such countries was not significant. Specifically, our principal banking subsidiaries had no holdings of sovereign bonds issued by these countries and had a total of approximately $5.3billion in exposure to obligors in such countries. The breakdown by country and by type of obligor was as follows:

	As of				Increase (decrease)
	March 31, 2013		March 31, 2014
	(in billions of US dollars)
Greece	$	0.1	$	—	$	(0.1	)
Sovereign		—		—		—
Financial Institutions		—		—		—
Others		0.1		—		(0.1	)
Ireland		0.3		0.3		—
Sovereign		—		—		—
Financial Institutions		0.1		—		(0.1	)
Others		0.2		0.3		0.1
Italy(3)		1.7		1.4		(0.3	)
Sovereign		0.1		0.1		—
Financial Institutions		0.1		0.1		—
Others		1.5		1.2		(0.3	)
Portugal		0.4		0.5		0.1
Sovereign		—		—		—
Financial Institutions		—		—		—
Others		0.4		0.5		0.1
Spain(3)		2.6		3.1		0.5
Sovereign		—		—		—
Financial Institutions		—		—		—
Others		2.6		3.1		0.5
Total	$	5.1	$	5.3	$	0.2
Sovereign		0.1		0.1		—
Financial Institutions(4)		0.2		0.1		(0.1	)
Others		4.8		5.1		0.3

Notes:

(1) Figures in the above table are on a managerial accounting basis. The difference between the exposure based on U.S. GAAP and that based on managerial accounting is attributable mainly to the netting of derivatives exposure as described in footnote 2 below and does not have a material impact on total exposure amounts set forth in the above table.

(2) Figures in the above table represent gross exposure except for derivatives exposure which takes into consideration legally enforceable master netting agreements.

(3) The obligors in Italy and Spain to which we had exposure consist mainly of highly rated large corporations.

(4) Our exposure to financial institutions that are not state-owned was minimal.

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Critical Accounting Estimates

Note 1 to our consolidated financial statements included elsewhere in this annual report contains a summary of our significant accounting policies. These accounting policies are essential to understanding our financial condition and results of operations. Certain of these accounting policies require management to make critical accounting estimates that involve complex and subjective judgments and the use of assumptions, some of which may be for matters that are inherently uncertain and susceptible to change. Such critical accounting estimates are based on information available to us as of the date of the financial statements and could change from period to period. Critical accounting estimates could also involve estimates for which management could have reasonably used another estimate for the relevant accounting period. The use of different estimates could have a material impact on our financial condition and results of operations. The following is a discussion of significant accounting policies for which critical accounting estimates are used.

Allowance for Loan Losses and Allowance for Losses on Off-Balance-Sheet Instruments

The allowance for loan losses is based on management’s estimate of probable credit losses existing in our lending portfolio, and the allowance for losses on off-balance-sheet instruments is based on management’s estimate of probable losses related to off-balance-sheet arrangements such as guarantees and commitments to extend credit.

The allowance for loan losses is categorized and evaluated using the following methods:

• Allowance based on ASC 310. In accordance with ASC 310, “Receivables” (“ASC 310”), we measure the value of specifically identified impaired loans based on the expected cash flows discounted at the loans’ initial effective interest rates, or as a practical expedient, using the observable market prices or the fair value of collateral if the loan is collateral dependent, when it is probable that we will be unable to collect all amounts due according to the contractual terms of the loan agreement. The collateral that we obtain for loans consists primarily of real estate or listed securities. In obtaining the collateral, we evaluate the value of the collateral and its legal enforceability, and we also conduct subsequent re-evaluations at least once a year. As to collateral of loans that are collateral dependent, in the case of real estate, valuation is generally conducted by an appraising subsidiary that is independent from our loan origination sections using generally accepted valuation techniques such as (i) the replacement cost approach, (ii) the sales comparison approach or (iii) the income approach, although in the case of large real estate collateral, we generally retain third-party appraisers to conduct the valuation. In the case of securities, such securities are typically those of listed companies and are thus valued using observable market prices. Management identifies impaired loans through the credit quality review process, in which the debtor’s ability to service its debt is assessed. The difference between our evaluation of the value of the impaired loan and its principal amount is the amount of the impairment which is recorded in the allowance for loan losses. Estimation of future cash flows is based on a comprehensive analysis of the borrower’s ability to service the debt, any progress made on the borrower’s rehabilitation program and the assumptions used therein.

• Allowance based on ASC 450. In accordance with ASC 450, “Contingencies” (“ASC 450”), a formula-based allowance utilizing historical loss factors is applied to certain impaired loans which are aggregated for purposes of measuring impairment, groups of small balance, homogeneous loans and other non-homogeneous loans which have not been identified as impaired. The determination of expected losses is based on a statistical analysis of our historical default and loan loss data, as well as data from third-party sources. The estimation of the formula allowance is back-tested on a periodic basis by comparing the allowance with the actual results subsequent to the balance sheet date.

• Adjustment of ASC 450 Allowance. In addition to the allowance for loan losses based on historical loss factors, the historical loss rate is adjusted, where appropriate, to reflect current factors, such as general economic and business conditions affecting key lending areas, credit quality trends, specific industry conditions and recent loss experience in the segments of the loan portfolio. For loans which are not

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deemed to be impaired under ASC 310 but to which special isolated risks apply, management assesses each loan individually to determine appropriate allowance amounts in lieu of mechanically applying the ASC 450 formula-based allowance.

We assess probable loss amounts for guarantees using the same categories and evaluation methods as loans. We similarly assess probable loss amounts for loan commitments, taking into account the probability of drawdowns.

The determination of the allowance for loan losses and the allowance for losses on off-balance-sheet instruments requires a great deal of judgment and the use of estimates as discussed above. Furthermore, information available at the time of the determination is limited, and it is not possible to eliminate uncertainty. Significant changes in any of the factors underlying our determination of the allowances could materially affect our financial condition and results of operations. For example, if our current judgment with respect to expected future cash flows differs from actual results, including as a result of an unexpected adverse change in the economic environment in Japan or a sudden and unanticipated failure of a large borrower, or if the value of collateral declines, we may need to increase the allowances with additional charges to earnings.

Valuation of Financial Instruments

ASC 820, “Fair Value Measurement” (“ASC 820”) specifies a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. The standard describes the following three levels of inputs that may be used to measure fair value:

Level 1	Quoted prices in active markets for identical assets or liabilities. Level 1 assets and liabilities include debt and equity securities and derivative contracts that are traded in an active exchange market.
Level 2	Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 2 assets and liabilities include debt securities with quoted prices that are traded less frequently than exchange-traded instruments. If no quoted market prices are available, the fair values of debt securities and over-the-counter derivative contracts in this category are determined using a pricing model with inputs that are observable in the market or can be derived principally from or corroborated by observable market data.
Level 3	Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Level 3 assets and liabilities include financial instruments whose values are determined using pricing models, discounted cash flow methodologies, or similar techniques.

For assets and liabilities classified in Level 1 and 2 of the hierarchy, where inputs are principally based on observable market data, there is less judgment or estimate in determining fair value, while the determination of fair value of Level 3 assets and liabilities involves more significant management judgments and estimates. For further information, including valuation methodologies and the use of management estimates and judgments in connection therewith, see note 28 to the consolidated financial statements included elsewhere in this annual report.

Valuation of Deferred Income Taxes

Deferred income taxes reflect the net tax effects of (1) temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes, and (2) operating loss and tax credit carryforwards. Pursuant to ASC 740, “Income Taxes” (“ASC 740”), a valuation allowance is recognized for any portion of the deferred tax assets where it is considered more likely than not that

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it will not be realized, based on projected future income and future reversals of existing taxable temporary differences. Because we have not opted to be subject to consolidated taxation, deferred tax assets and liabilities are calculated separately for each member of our consolidated group.

The determination of a valuation allowance is an inherently uncertain process due to the use of projected future taxable income and subjective assessments in the effectiveness of our available tax planning strategies provided for under ASC 740. For example, variances in future projected operating performance or tax law changes that impact our tax planning strategies could result in a change in the valuation allowance. If we are not able to realize all or part of our net deferred tax assets in the future, an adjustment to our valuation allowance would be charged to income tax expense in the period when such determination is made, and this could materially and adversely affect our financial condition and results of operations.

Pension and Other Employee Benefit Plans

Mizuho Financial Group, its principal banking subsidiaries and certain other subsidiaries sponsor severance indemnities and pension plans, which provide defined benefits to retired employees. Periodic expense and accrued liabilities are computed based on a number of actuarial assumptions, including mortality, withdrawals, discount rates, expected long-term rates of return on plan assets and rates of increase in future compensation levels.

Actual results that differ from the assumptions are accumulated and amortized over future periods and therefore generally affect future pension expenses. While management believes that the assumptions used are appropriate, differences in actual experience or changes in assumptions may adversely affect pension expenses in the future.

In estimating the discount rates, we use interest rates on high-quality fixed-income government and corporate bonds that received a rating of AA (Aa) or higher from rating agencies. The durations of such bonds closely match those of the benefit obligations. Assumed discount rates are reevaluated at each measurement date.

The expected rate of return for each asset category is based primarily on various aspects of the long-term prospects for the economy that include historical performance and the market environment.

For further information on our pension and other employee benefits, see note 20 to the consolidated financial statements included elsewhere in this annual report.

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Operating Results

The following table shows certain information as to our income, expenses and net income for the fiscal years ended March 31, 2012, 2013 and 2014:

	Fiscal years ended March 31,
	2012			2013		2014
	(in billions of yen)
Interest and dividend income	¥	1,437		¥	1,423	¥	1,423
Interest expense		416			412		402
Net interest income		1,021			1,011		1,021
Provision (credit) for loan losses		(23	)		140		(126	)
Net interest income after provision (credit) for loan losses		1,044			871		1,147
Noninterest income		1,090			1,439		1,083
Noninterest expenses		1,471			1,425		1,504
Income before income tax expense		663			885		726
Income tax expense		14			4		226
Net income		649			881		500
Less: Net income (loss) attributable to noncontrolling interests		(7	)		6		2
Net income attributable to MHFG shareholders	¥	656		¥	875	¥	498

Executive Summary

Fiscal Year Ended March 31, 2014 Compared to Fiscal Year Ended March 31, 2013

Net interest income increased by ¥10 billion, or 1.0%, from the previous fiscal year to ¥1,021 billion in the fiscal year ended March 31, 2014 due to an increase in net foreign interest and dividend income of ¥60 billion, offset in part by a decrease in net domestic interest and dividend income of ¥50 billion. The increase in net foreign interest and dividend income was due mainly to an increase in interest income from foreign loans as a result of an increase in the average balance, mainly in Asia, offset in part by an increase in interest expense on foreign deposits as a result of an increase in the average balance and an increase in interest expense on foreign trading account liabilities as a result of an increase in the average interest rate, reflecting a rise in long-term interest rate levels of major currencies, as well as an increase in the average balance. The decrease in net domestic interest and dividend income was due mainly to a decrease in interest income from domestic loans as a result of a decrease in the average yield, reflecting a decline in short-term interest rate levels of yen and a decrease in interest and dividend income from domestic investments as a result of a decrease in the average balance as a result of sales and redemptions of Japanese government bonds. These effects were offset in part by a decrease in interest expense on domestic short-term borrowings as a result of a decrease in the average balance and a decrease in the average rate, reflecting a decline in short-term interest rate levels of yen. We recorded a credit for loan losses of ¥126 billion in the fiscal year ended March 31, 2014 compared to a provision for loan losses of ¥140 billion in the previous fiscal year. The change was due primarily to a decrease in allowance for loan losses on domestic impaired loans as a result of upgrades and collections related to some borrowers and allowance for loan losses on non-impaired loans reflecting upgrades in the obligor categories of a broad range of borrowers mainly through our credit management activities, including business revitalization support for borrowers, reflecting the continuing gradual recovery of the Japanese economy.

Noninterest income decreased by ¥356 billion, or 24.7%, from the previous fiscal year to ¥1,083 billion in the fiscal year ended March 31, 2014. The decrease was due mainly to trading account losses—net of ¥60 billion compared to trading account gains—net of ¥534 billion in the previous fiscal year, offset in part by an increase in investment gains—net of ¥145 billion and an increase in fees and commission income of ¥63 billion. The change in trading account gains (losses) —net was due mainly to an increase in losses related to changes in the fair value of foreign currency-denominated available-for-sale securities for which the fair value option was elected and an

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increase in losses related to changes in the fair value of derivative financial instruments used to hedge market risks that are not eligible for hedge accounting under U.S. GAAP. The increase in investment gains—net was due mainly to an increase in investment gains related to equity securities and other investment gains recorded in the fiscal year ended March 31, 2014 compared to other investment losses in the previous fiscal year, offset in part by a decrease in investment gains related to bonds. The increase in investment gains related to equity securities was due mainly to a decrease in impairment losses on equity securities and an increase in gains on sales of equity securities, both of which were results of an upturn in domestic stock market conditions. The decrease in investment gains related to bonds was due mainly to a decrease in gains on sales of bonds, which reflected a rise in long-term interest rates of the yen and certain other major currencies. The increase in fees and commissions was due mainly to an increase in fees and commissions from securities-related business, as a result of upturn in domestic stock markets, and an increase in fees for other customer services.

Noninterest expenses increased by ¥79 billion, or 5.5%, from the previous fiscal year to ¥1,504 billion in the fiscal year ended March 31, 2014. The increase was due mainly to an increase in general and administrative expenses of ¥47 billion and an increase in salaries and employee benefits of ¥15 billion. The increase in general and administrative expenses was due mainly to increases in IT-related costs and overseas and advertising expenses. The increase in salaries and employee benefits was due mainly to an increase in overseas personnel expenses, offset in part by the effect of decreased employee retirement benefit expenses.

As a result of the foregoing, income before income tax expense decreased by ¥159 billion, or 18.0%, from the previous fiscal year to ¥726 billion in the fiscal year ended March 31, 2014. Income tax expense increased by ¥222 billion from the previous fiscal year to ¥226 billion in the fiscal year ended March 31, 2014 due mainly to deferred tax expense of ¥90 billion compared to deferred tax benefit of ¥44 billion in the previous fiscal year and an increase in current income tax expense of ¥88 billion.

Net income decreased by ¥381 billion, or 43.2%, from the previous fiscal year to ¥500 billion in the fiscal year ended March 31, 2014. Net income attributable to noncontrolling interests decreased by ¥4 billion, or 66.7% from the previous fiscal year to ¥2 billion in the fiscal year ended March 31, 2014. As a result, net income attributable to MHFG shareholders decreased by ¥377 billion, or 43.1%, from the previous fiscal year to ¥498 billion in the fiscal year ended March 31, 2014.

Fiscal Year Ended March 31, 2013 Compared to Fiscal Year Ended March 31, 2012

Net interest income decreased by ¥10 billion, or 1.0%, from the previous fiscal year to ¥1,011 billion in the fiscal year ended March 31, 2013 due to a decrease in net domestic interest and dividend income of ¥44 billion, offset in part by an increase in net foreign interest and dividend income of ¥34 billion. The decrease in net domestic interest and dividend income was due mainly to a decrease in interest income from loans as a result of a decrease in the average yield, reflecting a decline in yen interest rate levels, as well as average balance, offset in part by a decrease in interest expense on domestic deposits as a result of a decrease in the average rate, also reflecting a decline in yen interest rate levels. The increase in net foreign interest and dividend income was due mainly to an increase in interest income from foreign loans as a result of an increase in the average balance, mainly in Asia and Oceania, offset in part by an increase in interest expense on foreign short-term borrowings as a result of increases in the average balance and the average rate. We had a provision for loan losses of ¥140 billion in the fiscal year ended March 31, 2013 compared to a credit for loan losses of ¥23 billion in the previous fiscal year. The change was due primarily to an increase in allowance for loan losses as a result of an increase in foreign impaired loans that required an allowance for loan losses and of increased estimated loss reflecting changes in business environment surrounding some domestic obligors, offset in part by the effects of the continuing gradual recovery of the Japanese economy.

Noninterest income increased by ¥349 billion, or 32.0%, from the previous fiscal year to ¥1,439 billion in the fiscal year ended March 31, 2013. The increase was due mainly to an increase in trading account gains—net of ¥201 billion, investment gains—net of ¥121 billion in the fiscal year ended March 31, 2013 compared to investment losses—net of ¥33 billion in the previous fiscal year, an increase in other noninterest income of

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¥41 billion and an increase in fees and commissions of ¥38 billion, offset in part by a decrease in foreign exchange gains—net of ¥77 billion. The increase in trading account gains—net was due mainly to an increase in trading account gains related to bonds reflecting a decline in yen interest rate levels, an increase in trading account gains related to domestic equity securities reflecting an upturn in domestic market conditions and gains recorded by consolidated VIEs as a result of an improvement in market conditions. The change in investment gains (losses)—net was due mainly to investment gains related to equity securities recorded in the fiscal year ended March 31, 2013 compared to investment losses related to equity securities in the previous fiscal year and an increase in investment gains related to bonds. The increase in fees and commissions was due mainly to an increase in fees and commissions from securities-related business and an increase in fees and commissions from deposits, debentures and lending business. The decrease in foreign exchange gains—net was due mainly to fluctuations in foreign exchange rates in the fiscal year ended March 31, 2013.

Noninterest expenses decreased by ¥46 billion, or 3.1%, from the previous fiscal year to ¥1,425 billion in the fiscal year ended March 31, 2013. The decrease was due mainly to a decrease in general and administrative expenses of ¥37 billion and a decrease in salaries and employee benefits of ¥15 billion. The decrease in general and administrative expenses was due mainly to our continuous group-wide cost reduction efforts. The decrease in salaries and employee benefits was due mainly to the effect of decreased employee retirement benefit expenses.

As a result of the foregoing, income before income tax expense increased by ¥222 billion, or 33.5%, from the previous fiscal year to ¥885 billion in the fiscal year ended March 31, 2013. Income tax expense decreased by ¥10 billion, or 71.4%, from the previous fiscal year to ¥4 billion in the fiscal year ended March 31, 2013 due mainly to a decrease in current income tax expense.

Net income increased by ¥232 billion, or 35.7%, from the previous fiscal year to ¥881 billion in the fiscal year ended March 31, 2013. Net income (loss) attributable to noncontrolling interests was an income of ¥6 billion compared to a loss of ¥7 billion in the previous fiscal year. As a result, net income attributable to MHFG shareholders increased by ¥219 billion, or 33.4%, from the previous fiscal year to ¥875 billion in the fiscal year ended March 31, 2013.

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Net Interest Income

The following table shows the average balance of interest-earning assets and interest-bearing liabilities, interest amounts and the average interest rates on such assets and liabilities for the fiscal years ended March 31, 2012, 2013 and 2014:

	Fiscal years ended March 31,
	2012							2013							2014
	Average balance		Interest amount		Interest rate			Average balance		Interest amount		Interest rate			Average balance		Interest amount		Interest rate
	(in billions of yen, except percentages)
Domestic:
Interest-bearing deposits in other banks	¥	1,822	¥	2		0.13	%	¥	3,096	¥	3		0.10	%	¥	10,995	¥	12		0.10	%
Call loans and funds sold, and receivables under resale agreements and securities borrowing transactions		6,122		11		0.17			6,676		11		0.17			4,048		8		0.21
Trading account assets		8,884		25		0.28			9,019		15		0.17			6,937		24		0.35
Investments		39,529		206		0.52			38,974		191		0.49			34,481		155		0.45
Loans		53,770		707		1.31			53,222		674		1.27			54,230		634		1.17
Total interest-earning assets		110,127		951		0.86			110,987		894		0.81			110,691		833		0.75
Deposits		68,474		64		0.09			70,281		57		0.08			73,858		53		0.07
Debentures		86		—		0.45			—		—		—			—		—		—
Short-term borrowings(1)		25,591		43		0.17			26,540		42		0.16			20,471		29		0.14
Trading account liabilities		3,833		14		0.38			2,986		13		0.44			2,836		12		0.42
Long-term debt		8,172		175		2.13			8,184		171		2.09			9,046		178		1.97
Total interest-bearing liabilities		106,156		296		0.28			107,991		283		0.26			106,211		272		0.26
Net		3,971		655		0.58			2,996		611		0.55			4,480		561		0.49
Foreign:
Interest-bearing deposits in other banks		3,509		17		0.46			3,600		15		0.42			4,878		22		0.45
Call loans and funds sold, and receivables under resale agreements and securities borrowing transactions		9,082		35		0.39			10,226		51		0.50			11,961		34		0.28
Trading account assets		8,855		168		1.91			11,352		154		1.36			11,780		137		1.16
Investments		1,639		36		2.18			2,045		34		1.73			1,910		48		2.52
Loans		11,334		230		2.03			14,289		275		1.92			17,420		349		2.00
Total interest-earning assets		34,419		486		1.41			41,512		529		1.28			47,949		590		1.23
Deposits		9,878		67		0.68			11,700		67		0.58			14,695		80		0.55
Short-term borrowings(1)		13,248		34		0.25			16,653		49		0.29			20,598		28		0.13
Trading account liabilities		892		14		1.58			965		11		1.09			1,319		19		1.44
Long-term debt		650		5		0.84			733		2		0.40			764		3		0.39
Total interest-bearing liabilities		24,668		120		0.49			30,051		129		0.43			37,376		130		0.35
Net		9,751		366		0.92			11,461		400		0.85			10,573		460		0.88
Total:
Total interest-earning assets		144,546		1,437		0.99			152,499		1,423		0.93			158,640		1,423		0.90
Total interest-bearing liabilities		130,824		416		0.32			138,042		412		0.30			143,587		402		0.28
Net	¥	13,722	¥	1,021		0.67		¥	14,457	¥	1,011		0.63		¥	15,053	¥	1,021		0.62

Note:

(1) Short-term borrowings consist of due to trust accounts, call money and funds purchased, payables under repurchase agreements and securities lending transactions and other short-term borrowings.

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Fiscal Year Ended March 31, 2014 Compared to Fiscal Year Ended March 31, 2013

Interest and dividend income was ¥1,423 billion in the fiscal year ended March 31, 2014, which was the same level as the previous fiscal year. Domestic interest and dividend income accounted for ¥833 billion of the total amount, a decrease of ¥61 billion from the previous fiscal year, and foreign interest and dividend income accounted for ¥590 billion, an increase of ¥61 billion from the previous fiscal year.

The decrease in domestic interest and dividend income was due mainly to decreases in interest income from domestic loans and in interest and dividend income from domestic investments. The decrease in interest income from domestic loans was due mainly to a decrease in the average yield, reflecting a decline in short-term interest rate levels of yen, offset in part by the effect of an increase in the average balance of domestic loans. The decrease in interest and dividend income from domestic investments was due mainly to a decrease in the average balance of domestic investments as a result of sales and redemptions of Japanese government bonds. Changes in the average yields on domestic interest-earning assets contributed to an overall decrease in interest and dividend income of ¥52 billion, and changes in the average balances of domestic interest-earning assets contributed to an overall decrease in interest and dividend income of ¥9 billion, resulting in the ¥61 billion decrease in domestic interest and dividend income.

The increase in foreign interest and dividend income was due mainly to an increase in interest income from foreign loans, offset in part by decreases in interest income from foreign call loans and funds sold, and receivable under resale agreements and securities borrowing transactions and in interest income from foreign trading account assets. The increase in interest income from foreign loans was due mainly to increase in the average balance, mainly in Asia. The decreases in interest income from call loans and funds sold, and receivable under resale agreements and securities borrowing transactions and in interest income from foreign trading account assets were due mainly to the decrease in average yield, reflecting a decline in short-term interest rate levels of major currencies. Changes in the average yields on foreign interest-earning assets contributed to an overall decrease in interest and dividend income of ¥15 billion, and changes in the average balance of foreign interest-earning assets contributed to an overall increase in interest and dividend income of ¥76 billion, resulting in the ¥61 billion increase in foreign interest and dividend income.

Interest expense decreased by ¥10 billion, or 2.4%, from the previous fiscal year to ¥402 billion in the fiscal year ended March 31, 2014. Domestic interest expense accounted for ¥272 billion of the total amount, a decrease of ¥11 billion from the previous fiscal year, and foreign interest expense accounted for ¥130 billion of the total amount, an increase of ¥1 billion from the previous fiscal year.

The decrease in domestic interest expense was due mainly to a decrease in interest expense on domestic short-term borrowings, offset in part by an increase in interest expense on long-term debt. The decrease in interest expense on domestic short-term borrowings was due mainly to a decrease in the average balance and a decrease in the average interest rate, reflecting a decline in short-term interest rate levels of yen. The increase in interest expense on long-term debt was due mainly to an increase in the average balance, offset in part by a decrease in the average interest rates as a result of an increase in low interest rate debt from the Bank of Japan. The changes in the average interest rates on domestic interest-bearing liabilities contributed to an overall decrease in interest expense of ¥22 billion, and the changes in the average balance of domestic interest-bearing liabilities contributed to an overall increase in interest expense of ¥11 billion, resulting in the ¥11 billion decrease in domestic interest expense.

The increase in foreign interest expense was due mainly to increases in interest expense on foreign deposits and foreign trading account liabilities, offset in part by a decrease in interest expense on foreign short-term borrowings. The increase in foreign interest expense on foreign deposits was due mainly to an increase in the average balance. The increase in interest expense on foreign trading account liabilities was due mainly to an increase in the average interest rate, reflecting a rise in long-term interest rate levels of major currencies, as well as an increase in the average balance. The decrease in foreign interest expense on foreign short-term borrowings was due mainly to a decrease in the average interest rate, reflecting a decline in short-term interest rate levels of

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major currencies. The changes in the average interest rates on foreign interest-bearing liabilities contributed to an overall decrease in interest expense of ¥25 billion, and the changes in the average balance of foreign interest-bearing liabilities contributed to an overall increase in interest expense of ¥26 billion, resulting in the ¥1 billion increase in foreign interest expense.

As a result of the foregoing, net interest income increased by ¥10 billion, or 1.0%, from the previous fiscal year to ¥1,021 billion. The average interest rate spread declined by 0.01% from the previous fiscal year to 0.62% in the fiscal year ended March 31, 2014. The decline of the average interest rate spread was not significant because both the average yields on total interest-earning assets and the average interest rates on total interest-bearing liabilities generally leveled out between these periods.

Fiscal Year Ended March 31, 2013 Compared to Fiscal Year Ended March 31, 2012

Interest and dividend income decreased by ¥14 billion, or 1.0%, from the previous fiscal year to ¥1,423 billion in the fiscal year ended March 31, 2013. Domestic interest and dividend income accounted for ¥894 billion of the total amount, a decrease of ¥57 billion from the previous fiscal year, and foreign interest and dividend income accounted for ¥529 billion, an increase of ¥43 billion from the previous fiscal year.

The decrease in domestic interest and dividend income was due mainly to the decrease in interest income from domestic loans. The decrease in interest income from domestic loans was due mainly to the decrease in the average yield, reflecting a decline in yen interest rate levels, as well as the average balance. Changes in the average yields on domestic interest-earning assets contributed to an overall decrease in interest and dividend income of ¥49 billion, and changes in the average balances of domestic interest-earning assets contributed to an overall decrease in interest and dividend income of ¥8 billion, resulting in the ¥57 billion decrease in domestic interest and dividend income.

The increase in foreign interest and dividend income was due mainly to the increase in interest income from foreign loans. The increase in interest income from foreign loans was due mainly to an increase in the average balance, mainly in Asia and Oceania. Changes in the average yields on foreign interest-earning assets contributed to an overall decrease in interest and dividend income of ¥60 billion, and changes in the average balance of foreign interest-earning assets contributed to an overall increase in interest and dividend income of ¥103 billion, resulting in the ¥43 billion increase in foreign interest and dividend income.

Interest expense decreased by ¥4 billion, or 1.0%, from the previous fiscal year to ¥412 billion in the fiscal year ended March 31, 2013. Domestic interest expense accounted for ¥283 billion of the total amount, a decrease of ¥13 billion from the previous fiscal year, and foreign interest expense accounted for ¥129 billion of the total amount, an increase of ¥9 billion from the previous fiscal year.

The decrease in domestic interest expense was due mainly to a decrease in interest expense on domestic deposits. The decrease in interest expense on domestic deposits was due mainly to a decrease in the average interest rate, reflecting a decline in yen interest rate levels. The changes in the average interest rates on domestic interest-bearing liabilities contributed to substantially all of the overall decrease in interest expense of ¥13 billion.

The increase in foreign interest expense was due mainly to an increase in interest expense on foreign short-term borrowings. The increase in foreign interest expense on foreign short-term borrowings was due mainly to an increase in the average balance, primarily as a result of an increase in payables under repurchase agreements of our securities subsidiary in the United States as well as the average interest rate. The changes in the average interest rates on foreign interest-bearing liabilities contributed to an overall decrease in interest expense of ¥11 billion, and the changes in the average balance of foreign interest-bearing liabilities contributed to an overall increase in interest expense of ¥20 billion, resulting in the ¥9 billion increase in foreign interest expense.

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As a result of the foregoing, net interest income decreased by ¥10 billion, or 1.0%, from the previous fiscal year to ¥1,011 billion. The average interest rate spread decreased by 0.04% to 0.63%, with the domestic average interest rate spread decreasing by 0.03% due to a decrease in the average yield on interest-earning assets, which more than offset the effect of a decrease in the average interest rate on interest-bearing liabilities, both of which reflect declining yen interest rate levels, and the foreign average interest rate spread decreasing by 0.07% due to the effect of the decrease in the average yield on interest-earning assets exceeding the effect of the decrease in the average interest rate on interest-bearing liabilities, both of which reflects declining euro interest rate levels.

Provision (Credit) for Loan Losses

Fiscal Year Ended March 31, 2014 Compared to Fiscal Year Ended March 31, 2013

We recorded a credit for loan losses of ¥126 billion in the fiscal year ended March 31, 2014 compared to a provision for loan losses of ¥140 billion in the previous fiscal year. The change was due primarily to a decrease in allowance for loan losses on domestic impaired loans as a result of upgrades and collections related to some borrowers and allowance for loan losses on non-impaired loans reflecting upgrades in the obligor categories of a broad range of borrowers mainly through our credit management activities, including business revitalization support for borrowers, reflecting the continuing gradual recovery of the Japanese economy as described in “—Overview—Operating Environment.”

Fiscal Year Ended March 31, 2013 Compared to Fiscal Year Ended March 31, 2012

We had a provision for loan losses of ¥140 billion in the fiscal year ended March 31, 2013 compared to a credit for loan losses of ¥23 billion in the previous fiscal year. The change was due primarily to an increase in allowance for loan losses as a result of an increase in foreign impaired loans that required an allowance for loan losses and of increased estimated loss reflecting changes in business environment surrounding some domestic obligors, offset in part by the effects of the continuing gradual recovery of the Japanese economy.

Noninterest Income

The following table shows a breakdown of noninterest income for the fiscal years ended March 31, 2012, 2013 and 2014:

	Fiscal years ended March 31,
	2012			2013			2014
	(in billions of yen)
Fees and commissions	¥	575		¥	613		¥	676
Fees and commissions from securities-related business		116			133			170
Fees and commissions from deposits, debentures and lending business		98			114			114
Fees and commissions from remittance business		105			105			109
Trust fees		46			46			49
Fees for other customer services		210			215			234
Foreign exchange gains (losses)—net		98			21			26
Trading account gains (losses)—net		333			534			(60	)
Investment gains (losses)—net		(33	)		121			266
Investment gains (losses) related to bonds		42			91			60
Investment gains (losses) related to equity securities		(65	)		56			175
Others		(10	)		(26	)		31
Gains on disposal of premises and equipment		20			12			10
Other noninterest income		97			138			165
Total noninterest income	¥	1,090		¥	1,439		¥	1,083

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Fiscal Year Ended March 31, 2014 Compared to Fiscal Year Ended March 31, 2013

Noninterest income decreased by ¥356 billion, or 24.7%, from the previous fiscal year to ¥1,083 billion in the fiscal year ended March 31, 2014. The decrease was due mainly to trading account losses—net of ¥60 billion compared to trading account gains—net of ¥534 billion in the previous fiscal year, offset in part by an increase in investment gains—net of ¥145 billion and an increase in fees and commissions income of ¥63 billion.

Fees and commissions

Fees and commissions increased by ¥63 billion, or 10.3%, from the previous fiscal year to ¥676 billion in the fiscal year ended March 31, 2014. The increase was due mainly to an increase in fees and commissions from securities-related business of ¥37 billion and an increase in fees for other customer services of ¥19 billion. The increase in fees and commissions from securities-related business was due mainly to an increase in fees and commission related to investment trusts and individual annuities as a result of the upturn in domestic stock markets during the fiscal year ended March 31, 2014 compared to the previous fiscal year.

Trading account gains (losses)—net

Trading account gains (losses)—net was a loss of ¥60 billion in the fiscal year ended March 31, 2014 compared to a gain of ¥534 billion in the previous fiscal year. The change was due mainly to an increase in losses related to changes in the fair value of foreign currency-denominated available-for-sale securities for which the fair value option was elected, reflecting a rise in long-term interest rates, and an increase in losses related to changes in the fair value of derivative financial instruments used to hedge market risks, mainly interest rate risks, that are not eligible for hedge accounting under U.S. GAAP. For further information on the fair value option, see note 28 to our consolidated financial statements included elsewhere in this annual report.

Investment gains (losses)—net

Investment gains—net increased by ¥145 billion, or 119.8%, from the previous fiscal year to ¥266 billion in the fiscal year ended March 31, 2014. The increase was due mainly to an increase in investment gains related to equity securities of ¥119 billion, and other investment gains of ¥31 billion recorded in the fiscal year ended March 31, 2014 compared to other investment losses of ¥26 billion in the previous fiscal year, offset in part by a decrease in investment gains related to bonds of ¥31 billion. The increase in investment gains related to equity securities was due mainly to a decrease in impairment losses on equity securities and an increase in gains on sales of equity securities, both of which were results of an upturn in domestic stock market conditions during the fiscal year ended March 31, 2014. The decrease in investment gains related to bonds was due mainly to a decrease in gains on sales of bonds in the fiscal year ended March 31, 2014, which reflected a rise in long-term interest rates of the yen and certain other major currencies during the fiscal year ended March 31, 2014 compared to the previous fiscal year.

Fiscal Year Ended March 31, 2013 Compared to Fiscal Year Ended March 31, 2012

Noninterest income increased by ¥349 billion, or 32.0%, from the previous fiscal year to ¥1,439 billion in the fiscal year ended March 31, 2013. The increase was due mainly to an increase in trading account gains—net of ¥201 billion, investment gains—net of ¥121 billion in the fiscal year ended March 31, 2013 compared to investment losses—net of ¥33 billion in the previous fiscal year, an increase in other noninterest income of ¥41 billion and an increase in fees and commissions of ¥38 billion, offset in part by a decrease in foreign exchange gains—net of ¥77 billion.

Fees and commissions

Fees and commissions increased by ¥38 billion, or 6.6%, from the previous fiscal year to ¥613 billion in the fiscal year ended March 31, 2013. The increase was due mainly to an increase in fees and commissions from

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securities-related business of ¥17 billion and an increase in fees and commissions from deposits, debentures and lending business of ¥16 billion. The increase in fees and commissions from securities-related business was due mainly to an increase in fees and commissions related to equity securities transactions, investment trust and individual annuities as a result of a recovery of the stock markets during the fiscal year ended March 31, 2013. The increase in fees and commissions from deposits, debentures and lending business was due mainly to an increase in fee income associated with domestic syndicated loans.

Foreign exchange gains (losses)—net

Foreign exchange gains—net decreased by ¥77 billion, or 78.6%, from the previous fiscal year to ¥21 billion in the fiscal year ended March 31, 2013. The decrease was due mainly to fluctuations in foreign exchange rates in the fiscal year ended March 31, 2013.

Trading account gains (losses)—net

Trading account gains—net increased by ¥201 billion, or 60.4%, from the previous fiscal year to ¥534 billion in the fiscal year ended March 31, 2013. The increase was due mainly to an increase in trading account gains earned by our securities subsidiary related to bonds reflecting a decline in yen interest rate levels and related to domestic equity securities reflecting an upturn in domestic market conditions, gains recorded by consolidated VIEs as a result of an improvement in market conditions and an increase in gains related to change in the fair value of derivative financial instruments used to hedge market risks that are not eligible for hedge accounting under U.S. GAAP, offset in part by a decrease in gains related to changes in the fair value of foreign currency-denominated available-for-sale securities for which the fair value option was elected. For further information on the fair value option, see note 28 to our consolidated financial statements included elsewhere in this annual report.

Investment gains (losses)—net

Investment gains (losses)—net was a gain of ¥121 billion in the fiscal year ended March 31, 2013 compared to a loss of ¥33 billion in the previous fiscal year. The change was due mainly to investment gains related to equity securities of ¥56 billion recorded in the fiscal year ended March 31, 2013 compared to investment losses related to equity securities of ¥65 billion in the previous fiscal year and an increase in investment gains related to bonds of ¥49 billion from the previous fiscal year to ¥91 billion in the fiscal year ended March 31, 2013. The change in investment gains (losses) related to equity securities was due mainly to an increase in gains on sales of equity securities as a result of an upturn in domestic stock market conditions. The increase in investment gains related to bonds was due mainly to an increase in gains related to sales of Japanese government bonds as a result of declining yen interest rates. For further information, see note 3 to our consolidated financial statements included elsewhere in this annual report.

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Noninterest Expenses

The following table shows a breakdown of noninterest expenses for the fiscal years ended March 31, 2012, 2013 and 2014:

	Fiscal years ended March 31,
	2012			2013		2014
	(in billions of yen)
Salaries and employee benefits	¥	587		¥	572	¥	587
General and administrative expenses		477			440		487
Impairment of goodwill		6			—		4
Occupancy expenses		175			172		172
Fees and commission expenses		108			109		122
Provision (credit) for losses on off-balance-sheet instruments		(1	)		5		12
Other noninterest expenses		119			127		120
Total noninterest expenses	¥	1,471		¥	1,425	¥	1,504

Fiscal Year Ended March 31, 2014 Compared to Fiscal Year Ended March 31, 2013

Noninterest expenses increased by ¥79 billion, or 5.5%, from the previous fiscal year to ¥1,504 billion in the fiscal year ended March 31, 2014. The increase was due mainly to an increase in general and administrative expenses of ¥47 billion and an increase in salaries and employee benefits of ¥15 billion.

Salaries and employee benefits

Salaries and employee benefits increased by ¥15 billion, or 2.6%, from the previous fiscal year to ¥587 billion in the fiscal year ended March 31, 2014. The increase was due mainly to an increase in overseas personnel expenses, offset in part by the effects of decreased employee retirement benefit expenses as a result of a decrease in the amortization of net actuarial loss, which primarily reflects past recoveries of the fair value of plan assets and an increase in expected return on plan assets, which reflects various aspects of long-term prospects for the economy, historical performance of investments of plan assets and the market environment, including stock market conditions, at the beginning of the fiscal year. Additional information regarding pension and other employee benefit plans is included in note 20 to our consolidated financial statements included elsewhere in this annual report.

General and administrative expenses

General and administrative expenses increased by ¥47 billion, or 10.7%, from the previous fiscal year to ¥487 billion in the fiscal year ended March 31, 2014. The increase was due mainly to an increase in IT-related costs as a result of the commencement of depreciation relating to the common operational infrastructure of the new IT systems platform, as well as an increase in overseas and advertising expenses.

Fiscal Year Ended March 31, 2013 Compared to Fiscal Year Ended March 31, 2012

Noninterest expenses decreased by ¥46 billion, or 3.1%, from the previous fiscal year to ¥1,425 billion in the fiscal year ended March 31, 2013. The decrease was due mainly to a decrease in general and administrative expenses of ¥37 billion and a decrease in salaries and employee benefits of ¥15 billion. The decrease in general and administrative expenses was due mainly to our continuous group-wide cost reduction efforts. The decrease in salaries and employee benefits was due mainly to the effect of decreased employee retirement benefit expenses.

Salaries and employee benefits

Salaries and employee benefits decreased by ¥15 billion, or 2.6%, from the previous fiscal year to ¥572 billion in the fiscal year ended March 31, 2013 due mainly to the effect of decreased employee retirement benefit

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expenses as a result of a decrease in the amortization of net actuarial loss, which primarily reflects past recoveries of the fair value of plan assets, an increase in expected return on plan assets, which reflects various aspects of long-term prospects for the economy, historical performance of investments of plan assets and the market environment, including stock market conditions, at the beginning of the fiscal year, and the absence of a premium allowance for a voluntary early retirement program of a securities subsidiary incurred in the previous fiscal year. Additional information regarding pension and other employee benefit plans is included in note 20 to our consolidated financial statements included elsewhere in this annual report.

General and administrative expenses

General and administrative expenses decreased by ¥37 billion, or 7.8%, from the previous fiscal year to ¥440 billion in the fiscal year ended March 31, 2013. The decrease was due mainly to our continuous group-wide cost reduction efforts.

Income Tax Expense

The following table shows the components of income tax expense (benefit) for the fiscal years ended March 31, 2012, 2013 and 2014:

	Fiscal years ended March 31,
	2012			2013			2014
	(in billions of yen)
Current:
Domestic	¥	22		¥	37		¥	93
Foreign		33			11			43
Total current tax expense		55			48			136
Deferred:
Domestic		(37	)		(40	)		95
Foreign		(4	)		(4	)		(5	)
Total deferred tax expense (benefit)		(41	)		(44	)		90
Total income tax expense	¥	14		¥	4		¥	226

Fiscal Year Ended March 31, 2014 Compared to Fiscal Year Ended March 31, 2013

Income tax expense increased by ¥222 billion from the previous fiscal year to ¥226 billion in the fiscal year ended March 31, 2014, due mainly to deferred tax expense of ¥90 billion compared to deferred tax benefit of ¥44 billion in the previous fiscal year and an increase in current income tax expense of ¥88 billion. The change in deferred tax expense (benefit) was due mainly to a decrease in deferred tax assets, net of allowance, as a result of a slowing in the increase of our estimation of future taxable income compared with the previous fiscal year, which in turn was due to a slowing in the increase of net unrealized gains on available-for-sale securities compared with the previous fiscal year. The increase in current tax expense was due mainly to an increase in the taxable income of a principal banking subsidiary.

Fiscal Year Ended March 31, 2013 Compared to Fiscal Year Ended March 31, 2012

Income tax expense decreased by ¥10 billion, or 71.4%, from the previous fiscal year to ¥4 billion in the fiscal year ended March 31, 2013, due mainly to a decrease in current income tax expense.

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The following table shows components of deferred tax assets as of March 31, 2012, 2013 and 2014:

	As of March 31,
	2012			2013			2014
	(in billions of yen)
Deferred tax assets:
Investments	¥	1,064		¥	889		¥	724
Allowance for loan losses		333			337			267
Trading account assets		59			—			20
Prepaid pension cost and accrued pension liabilities		12			—			—
Derivative financial instruments		—			—			29
Undistributed earnings of subsidiaries		1			—			—
Net operating loss carryforwards		1,476			450			449
Other		282			265			204
Gross deferred tax assets		3,227			1,941			1,693
Valuation allowance		(1,952	)		(585	)		(444	)
Deferred tax assets, net of valuation allowance		1,275			1,356			1,249
Deferred tax liabilities:
Available-for-sale securities		369			568			659
Prepaid pension cost and accrued pension liabilities		—			40			133
Derivative financial instruments		28			35			—
Premises and equipment		4			12			11
Trading account assets		—			11			—
Undistributed earnings of subsidiaries		—			11			12
Other		53			52			62
Gross deferred tax liabilities		454			729			877
Net deferred tax assets	¥	821		¥	627		¥	372

Net Income (Loss) Attributable to Noncontrolling Interests

Fiscal Year Ended March 31, 2014 Compared to Fiscal Year Ended March 31, 2013

Net income (loss) attributable to noncontrolling interests decreased by ¥4 billion, or 66.7%, from the previous fiscal year to ¥2 billion in the fiscal year ended March 31, 2014.

Fiscal Year Ended March 31, 2013 Compared to Fiscal Year Ended March 31, 2012

Net income (loss) attributable to noncontrolling interests was an income of ¥6 billion in the fiscal year ended March 31, 2013 compared to a loss of ¥7 billion in the previous fiscal year due mainly to the allocation of income recorded by our securities subsidiaries in the fiscal year ended March 31, 2013 compared to the allocation of losses incurred by our securities subsidiaries in the previous fiscal year.

Net Income Attributable to MHFG Shareholders

Fiscal Year Ended March 31, 2014 Compared to Fiscal Year Ended March 31, 2013

As a result of the foregoing, net income attributable to MHFG shareholders decreased by ¥377 billion, or 43.1%, from the previous fiscal year to ¥498 billion in the fiscal year ended March 31, 2014.

Fiscal Year Ended March 31, 2013 Compared to Fiscal Year Ended March 31, 2012

As a result of the foregoing, net income attributable to MHFG shareholders increased by ¥219 billion, or 33.4%, from the previous fiscal year to ¥875 billion in the fiscal year ended March 31, 2013.

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Business Segments Analysis

Our operating segments are based on the nature of the products and services provided, the type of customer and our management organization. The business segment information set forth below is derived from the internal management reporting systems used by management to measure the performance of our business segments. We measure the performance of each of our operating segments primarily in terms of “net business profits” in accordance with internal managerial accounting rules and practices. Net business profits is used in Japan as a measure of the profitability of core banking operations and is defined as gross profits (or the sum of net interest income, fiduciary income, net fee and commission income, net trading income and net other operating income) less general and administrative expenses. Measurement by net business profits is required for regulatory reporting to the Financial Services Agency. Therefore, the format and information are presented primarily on the basis of Japanese GAAP and are not consistent with the consolidated financial statements prepared in accordance with U.S. GAAP. A reconciliation of total net business profits with income before income tax expense under U.S. GAAP is provided in note 31 to our consolidated financial statements included elsewhere in this report.

Beginning on April 1, 2013, we moved to a new group operational structure and established ten business units such as Personal Banking, Retail Banking, Corporate Banking (Large Corporations), etc., and head-office coordination divisions to determine strategies and initiatives across the group-wide banking, trust banking, securities and other business areas, based on the ten business units across Mizuho Bank (the former Mizuho Bank and the former Mizuho Corporate Bank merged on July 1, 2013), Mizuho Trust & Banking and Mizuho Securities, etc., and we realigned the reportable segments to reflect the new organizational structure. The former three Global Groups were abolished.

We engage in banking, trust banking, securities and other businesses through consolidated subsidiaries and affiliates. As these subsidiaries and affiliates are in different industries and regulatory environments, we disclose business segment information based on the relevant principal consolidated subsidiaries such as Mizuho Bank (the former Mizuho Bank and the former Mizuho Corporate Bank), Mizuho Trust & Banking and Mizuho Securities for investors to measure the present and future cash flows properly.

Operating segments of Mizuho Bank are aggregated based on the type of customer characteristics and are aggregated into the following seven reportable segments: Personal Banking; Retail Banking; Corporate Banking (Large Corporations); Corporate Banking; Financial Institutions & Public Sector Business; International Banking; and Trading and others.

Mizuho Bank

Personal Banking

This segment provides financial products and services such as housing loans, deposits, investment trusts and individual insurance to individual customers through Mizuho Bank’s nationwide branches and ATM network as well as telephone and the internet banking services. In addition, this segment handles trust products as an agent of Mizuho Trust & Banking.

Retail Banking

This segment provides financial products and services, such as comprehensive consulting services of business succession and asset inheritance and asset management for business owners and high-net-worth customers. This segment also provides overall banking services for SMEs.

Corporate Banking (Large Corporations)

This segment provides a full range of financial solutions on a global basis to Japanese large corporations and their affiliates by integrating our specialty functions, including banking, trust and securities, based on solid relationships with our domestic customers and by utilizing our global industry knowledge.

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Corporate Banking

This segment provides, to larger SMEs, financial products and services including a range of solution businesses in accordance with the growth strategy of our corporate customers. This segment provides solutions for stable fund-raising, mergers and acquisitions and initial public offerings for customers in their start-up or growth stages, and management buy-out, business succession, entry to new business and business restructuring for customers in mature or transition stages.

Financial Institutions & Public Sector Business

This segment provides advisory services and solutions such as advice on financial strategy and risk management to financial institutions and provides comprehensive financial products and services that include funding support via the subscription and underwriting of bonds, etc., to public sector entities.

International Banking

This segment provides unified support both in Japan and overseas for our Japanese corporate customers to expand their overseas operations, and also promotes business with non-Japanese corporate customers in various countries through our global network. Further, this segment offers products such as project finance and trade finance for overseas customers.

Trading and others

This segment provides derivatives and other risk hedging products to satisfy Mizuho Bank’s customers’ financial and business risk control requirements. It is also engaged in Mizuho Bank’s proprietary trading, such as foreign exchange and bond trading, and asset and liability management. This segment also includes costs incurred by the head office functions of Mizuho Bank.

Mizuho Trust & Banking

Mizuho Trust & Banking provides products and services related to trust, real estate, securitization and structured finance, pension and asset management and stock transfers.

Mizuho Securities

Mizuho Securities provides full-line securities services to corporations, financial institutions, public sector entities and individuals.

Others

This segment consists of Mizuho Financial Group, our subsidiaries other than Mizuho Bank, Mizuho Trust & Banking and Mizuho Securities, and our equity-method affiliates. They provide a wide range of customers with various products and services such as those related to trust and custody, asset management and private banking through companies such as Trust & Custody Services Bank, Mizuho Asset Management, DIAM (an equity-method affiliate) and Mizuho Private Wealth Management. This segment also provides non-banking services, including research and consulting services through Mizuho Research Institute, information technology-related services through Mizuho Information & Research Institute, and advisory services to financial institutions through Mizuho Financial Strategy.

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The information below for reportable segments is derived from our internal management reporting systems.

Results of Operations by Business Segment

Consolidated Results of Operations

Consolidated gross profits for the fiscal year ended March 31, 2014 were ¥2,035.3 billion, a decrease of ¥136.4 billion compared to the fiscal year ended March 31, 2013. Consolidated general and administrative expenses for the fiscal year ended March 31, 2014 were ¥1,229.3 billion, an increase of ¥58.3 billion compared to the fiscal year ended March 31, 2013. Consolidated net business profits for the fiscal year ended March 31, 2014 were ¥744.3 billion, a decrease of ¥167.9 billion compared to the fiscal year ended March 31, 2013.

	The former Mizuho Bank (Consolidated)
				The former Mizuho Bank (Non-consolidated)														The former Mizuho Investors Securities (Consolidated)		Others
	Total			Total		Personal Banking (a)		Retail Banking (b)		Corporate Banking (Large Corporations) (c)		Corporate Banking (d)		Financial Institution & Public Sector Business (e)		Trading and others (f)		(g)		(h)
	(in billions of yen)
Fiscal year ended March 31, 2012(1)
Gross profits (excluding the amounts of credit costs of trust accounts):
Net interest income (expense)	¥	583.9		¥	545.4	¥	224.3	¥	95.1	¥	17.8	¥	118.6	¥	22.2	¥	67.4	¥	0.7	¥	37.8
Net noninterest income		305.8			253.3		32.1		41.0		19.0		68.2		8.6		84.4		43.9		8.6
Total		889.7			798.7		256.4		136.1		36.8		186.8		30.8		151.8		44.6		46.4
General and administrative expenses (excluding non-recurring losses)		608.5			556.4		218.6		108.2		18.5		86.4		14.5		110.2		40.9		11.2
Others		(14.0	)		—		—		—		—		—		—		—		—		(14.0	)
Net business profits (losses) (excluding the amounts of credit costs of trust accounts, before reversal of (provision for) general reserve for losses on loans)	¥	267.2		¥	242.3	¥	37.8	¥	27.9	¥	18.3	¥	100.4	¥	16.3	¥	41.6	¥	3.7	¥	21.2

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	The former Mizuho Corporate Bank (Consolidated)																					Mizuho Trust & Banking (Consolidated)			Others			Mizuho Financial Group (Consolidated)
				The former Mizuho Corporate Bank (Non-consolidated)												The former Mizuho Securities (Consolidated)			Others
	Total			Total		Corporate Banking (Large Corporations) (i)		Corporate Banking (j)		Financial Institution & Public Sector Business (k)		Inter- national Banking (l)		Trading and others (m)		(n)			(o)			(p)			(q)			Total
	(in billions of yen)
Fiscal year ended March 31, 2012(1)
Gross profits (excluding the amounts of credit costs of trust accounts):
Net interest income (expense)	¥	468.3		¥	395.0	¥	150.6	¥	2.7	¥	18.1	¥	90.3	¥	133.3	¥	(8.1	)	¥	81.4		¥	42.5		¥	(6.4	)	¥	1,088.3
Net noninterest income		449.4			286.8		114.4		1.1		15.8		86.9		68.6		151.7			10.9			104.8			54.8			914.8
Total		917.7			681.8		265.0		3.8		33.9		177.2		201.9		143.6			92.3			147.3			48.4			2,003.1
General and administrative expenses (excluding non-recurring losses)		465.4			244.9		75.6		1.3		11.6		60.3		96.1		192.9			27.6			92.3			40.1			1,206.3
Others		(52.1	)		—		—		—		—		—		—		(0.1	)		(52.0	)		(3.7	)		(7.9	)		(77.7	)
Net business profits (losses) (excluding the amounts of credit costs of trust accounts, before reversal of (provision for) general reserve for losses on loans)	¥	400.2		¥	436.9	¥	189.4	¥	2.5	¥	22.3	¥	116.9	¥	105.8	¥	(49.4	)	¥	12.7		¥	51.3		¥	0.4		¥	719.1

	The former Mizuho Bank (Consolidated)
				The former Mizuho Bank (Non-consolidated)														Others
	Total			Total		Personal Banking (a)		Retail Banking (b)		Corporate Banking (Large Corporations) (c)		Corporate Banking (d)		Financial Institution & Public Sector Business (e)		Trading and others (f)		(g)
	(in billions of yen)
Fiscal year ended March 31, 2013(1)(2)(4)
Gross profits (excluding the amounts of credit costs of trust accounts):
Net interest income (expense)	¥	550.6		¥	513.8	¥	219.2	¥	83.3	¥	14.9	¥	106.1	¥	19.9	¥	70.4	¥	36.8
Net noninterest income		360.3			313.7		33.9		42.3		19.3		70.7		11.0		136.5		46.6
Total		910.9			827.5		253.1		125.6		34.2		176.8		30.9		206.9		83.4
General and administrative expenses (excluding non-recurring losses)		568.2			524.4		218.6		113.7		11.6		73.2		14.3		93.0		43.8
Others		(7.4	)		—		—		—		—		—		—		—		(7.4	)
Net business profits (losses) (excluding the amounts of credit costs of trust accounts, before reversal of (provision for) general reserve for losses on loans)	¥	335.3		¥	303.1	¥	34.5	¥	11.9	¥	22.6	¥	103.6	¥	16.6	¥	113.9	¥	32.2

80

	The former Mizuho Corporate Bank (Consolidated)																						Mizuho Trust & Banking (Consolidated)			Others			Mizuho Financial Group (Consolidated)
				The former Mizuho Corporate Bank (Non-consolidated)													Mizuho Securities (Consolidated)			Others
	Total			Total		Corporate Banking (Large Corporations) (h)		Corporate Banking (i)			Financial Institution & Public Sector Business (j)		Inter- national Banking (k)		Trading and others (l)		(m)			(n)			(o)			(p)			Total
	(in billions of yen)
Fiscal year ended March 31, 2013(1)(2)(4)
Gross profits (excluding the amounts of credit costs of trust accounts):
Net interest income (expense)	¥	486.1		¥	401.7	¥	140.9	¥	0.5		¥	16.3	¥	108.2	¥	135.8	¥	(1.8	)	¥	86.2		¥	39.5		¥	(0.3	)	¥	1,075.9
Net noninterest income		572.8			333.4		103.3		0.2			13.2		104.7		112.0		229.0			10.4			105.0			57.7			1,095.8
Total		1,058.9			735.1		244.2		0.7			29.5		212.9		247.8		227.2			96.6			144.5			57.4			2,171.7
General and administrative expenses (excluding non-recurring losses)		471.9			241.1		76.8		1.3			12.2		66.6		84.2		197.1			33.7			90.1			40.8			1,171.0
Others		(50.0	)		—		—		—			—		—		—		—			(50.0	)		(3.5	)		(27.6	)		(88.5	)
Net business profits (losses) (excluding the amounts of credit costs of trust accounts, before reversal of (provision for) general reserve for losses on loans)	¥	537.0		¥	494.0	¥	167.4	¥	(0.6	)	¥	17.3	¥	146.3	¥	163.6	¥	30.1		¥	12.9		¥	50.9		¥	(11.0	)	¥	912.2

	Mizuho Bank (Consolidated)																							Mizuho Trust & Banking (Consolidated)			Mizuho Securities (Consolidated)		Others			Mizuho Financial Group (Consolidated)
				Mizuho Bank (Non-consolidated)																	Others
	Total			Total		Personal Banking (a)		Retail Banking (b)		Corporate Banking (Large Corporations) (c)		Corporate Banking (d)		Financial Institution & Public Sector Business (e)		Inter- national Banking (f)		Trading and others (g)			(h)			(i)			(j)		(k)			Total
	(in billions of yen)
Fiscal year ended March 31, 2014(1)(2)(3)(4)
Gross profits (excluding the amounts of credit costs of trust accounts):
Net interest income	¥	933.8		¥	800.1	¥	165.0	¥	59.8	¥	170.2	¥	77.9	¥	30.7	¥	128.9	¥	167.6		¥	133.7		¥	40.2		¥	2.9	¥	131.4		¥	1,108.3
Net noninterest income (expenses)		407.4			398.2		32.9		34.8		126.7		51.8		20.1		139.8		(7.9	)		9.2			108.1			283.9		127.6			927.0
Total		1,341.2			1,198.3		197.9		94.6		296.9		129.7		50.8		268.7		159.7			142.9			148.3			286.8		259.0			2,035.3
General and administrative expenses (excluding non-recurring losses)		711.3			659.0		171.3		87.8		83.8		58.8		25.1		82.5		149.7			52.3			90.9			246.2		180.9			1,229.3
Others		(56.1	)		—		—		—		—		—		—		—		—			(56.1	)		(2.9	)		—		(2.7	)		(61.7	)
Net business profits (excluding the amounts of credit costs of trust accounts, before reversal of (provision for) general reserve for losses on loans)	¥	573.8		¥	539.3	¥	26.6	¥	6.8	¥	213.1	¥	70.9	¥	25.7	¥	186.2	¥	10.0		¥	34.5		¥	54.5		¥	40.6	¥	75.4		¥	744.3

Notes:

(1) As for the fiscal year ended March 31, 2012, “Others (h),” “Others (o)” and “Others (q)” include elimination of transactions between consolidated subsidiaries. As for the fiscal year ended March 31, 2013, “Others (g),” “Others (n)” and “Others (p)” include elimination of transactions between consolidated subsidiaries. As for the fiscal year ended March 31, 2014, “Others (h)” and “Others (k)” include elimination of transactions between consolidated subsidiaries.

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(2) Beginning on April 1, 2013, we moved to a new group operational structure and realigned the reportable segments to reflect the new organizational structure. In addition, new allocation methods have been applied to the calculation of “Gross profits” and “General and administrative expenses.” Figures for the fiscal year ended March 31, 2013 have been reclassified under the new allocation methods. The effect of the change of allocation methods is not significant.

(3) As for the fiscal year ended March 31, 2014, “Mizuho Bank (Non-consolidated)” represents the sum of the performance of the former Mizuho Corporate Bank for the first quarter and the new Mizuho Bank for the second, third and fourth quarters, while “Others (h)” includes the performance of the former Mizuho Bank for the first quarter, in light of the merger of the former Mizuho Bank and the former Mizuho Corporate Bank conducted in July 2013.

(4) Beginning on April 1, 2013, Mizuho Securities was turned into a directly-held subsidiary of Mizuho Financial Group. As for the fiscal year ended March 31, 2013, “Mizuho Securities (Consolidated) (m)” represents the performance of the former Mizuho Securities for the first three quarters and the new Mizuho Securities for the fourth quarter, while “Others (g)” includes the performance of the former Mizuho Investors Securities for the first three quarters. As for the fiscal year ended March 31, 2014, “Mizuho Securities (Consolidated) (j)” represents the performance of the new Mizuho Securities, in light of the merger of the former Mizuho Securities and the former Mizuho Investors Securities conducted in January 2013.

Mizuho Bank

On July 1, 2013, the merger between the former Mizuho Bank and the former Mizuho Corporate Bank came into effect with the former Mizuho Corporate Bank as the surviving entity, which was renamed Mizuho Bank upon the merger. The following table and comparison are based on the simple aggregation of the results of the former Mizuho Bank and the former Mizuho Corporate Bank with respect to periods prior to the merger.

	The former Mizuho Bank and the former Mizuho Corporate Bank
	Personal Banking (a)		Retail Banking (b)		Corporate Banking (Large Corporations) (c)		Corporate Banking (d)		Financial Institution & Public Sector Business (e)		Inter- national Banking (f)		Trading and others (g)		Total
	(in billions of yen)
Fiscal year ended March 31,2013(1)(2):
Gross profits (excluding the amounts of credit costs of trust accounts):
Net interest income	¥	219.2	¥	83.3	¥	155.8	¥	106.6	¥	36.2	¥	108.2	¥	206.2	¥	915.5
Net noninterest income		33.9		42.3		122.6		70.9		24.2		104.7		248.5		647.1
Total		253.1		125.6		278.4		177.5		60.4		212.9		454.7		1,562.6
General and administrative expenses (excluding non-recurring losses)		218.6		113.7		88.4		74.5		26.5		66.6		177.2		765.5
Others		—		—		—		—		—		—		—		—
Net business profits	¥	34.5	¥	11.9	¥	190.0	¥	103.0	¥	33.9	¥	146.3	¥	277.5	¥	797.1
Fiscal year ended March 31, 2014(1)(2):
Gross profits (excluding the amounts of credit costs of trust accounts):
Net interest income	¥	218.5	¥	80.0	¥	172.7	¥	103.3	¥	35.4	¥	128.9	¥	185.0	¥	923.8
Net noninterest income		41.6		45.3		131.4		64.7		22.3		139.8		15.2		460.3
Total		260.1		125.3		304.1		168.0		57.7		268.7		200.2		1,384.1
General and administrative expenses (excluding non-recurring losses)		226.4		116.7		87.2		77.7		29.0		82.5		171.6		791.1
Others		—		—		—		—		—		—		—		—
Net business profits	¥	33.7	¥	8.6	¥	216.9	¥	90.3	¥	28.7	¥	186.2	¥	28.6	¥	593.0

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Notes:

(1) The former Mizuho Bank and the former Mizuho Corporate Bank merged on July 1, 2013. Figures for the fiscal year ended March 31, 2013 represent the simple aggregation of the performance of the former Mizuho Bank and the former Mizuho Corporate Bank, and figures for the fiscal year ended March 31, 2014 represent the simple aggregation of the performance of the former Mizuho Bank and the former Mizuho Corporate Bank for the first quarter and the new Mizuho Bank for the second, third, and fourth quarters.

(2) Beginning on April 1, 2013, we moved to a new group operational structure and realigned the reportable segments to reflect the new organizational structure. In addition, new allocation methods have been applied to the calculation of “Gross profits” and “General and administrative expenses.” Figures for the fiscal year ended March 31, 2013 have been reclassified under the new allocation methods. Figures for the fiscal year ended March 31, 2013 prior to such change are as set forth in the table below. The narrative analysis under the heading “Fiscal year ended March 31, 2013 compared to fiscal year ended March 31, 2012” below is based on figures prior to such change.

	The former Mizuho Bank and the former Mizuho Corporate Bank
	Personal Banking (a)		Retail Banking (b)		Corporate Banking (Large Corporations) (c)		Corporate Banking (d)		Financial Institution & Public Sector Business (e)		International Banking (f)		Trading and others (g)		Total
	(in billions of yen)
Fiscal year ended March 31, 2012(1):
Gross profits (excluding the amounts of credit costs of trust accounts):
Net interest income	¥	224.3	¥	95.1	¥	168.4	¥	121.3	¥	40.3	¥	90.3	¥	200.7	¥	940.4
Net noninterest income		32.1		41.0		133.4		69.3		24.4		86.9		153.0		540.1
Total		256.4		136.1		301.8		190.6		64.7		177.2		353.7		1,480.5
General and administrative expenses (excluding non-recurring losses)		218.6		108.2		94.1		87.7		26.1		60.3		206.3		801.3
Others		—		—		—		—		—		—		—		—
Net business profits	¥	37.8	¥	27.9	¥	207.7	¥	102.9	¥	38.6	¥	116.9	¥	147.4	¥	679.2
Fiscal year ended March 31, 2013(1):
Gross profits (excluding the amounts of credit costs of trust accounts):
Net interest income	¥	210.6	¥	87.1	¥	156.4	¥	113.1	¥	34.7	¥	109.6	¥	204.0	¥	915.5
Net noninterest income		37.4		45.9		144.3		85.8		27.1		104.7		201.9		647.1
Total		248.0		133.0		300.7		198.9		61.8		214.3		405.9		1,562.6
General and administrative expenses (excluding non-recurring losses)		209.3		102.1		87.9		82.7		24.0		61.5		198.0		765.5
Others		—		—		—		—		—		—		—		—
Net business profits	¥	38.7	¥	30.9	¥	212.8	¥	116.2	¥	37.8	¥	152.8	¥	207.9	¥	797.1

Note:

(1) Beginning the fiscal year ended March 31, 2013, with the implementation of the “substantive one bank” structure, new allocation methods among segments within the former Mizuho Corporate Bank were applied to the calculation of the respective “Gross profits” and “General and administrative expenses.” Figures for the fiscal year ended March 31, 2012 were reclassified under the new allocation methods.

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Fiscal year ended March 31, 2014 compared to fiscal year ended March 31, 2013

Gross profits for the fiscal year ended March 31, 2014 were ¥1,384.1 billion, a decrease of ¥178.5 billion, or 11.4%, compared to the fiscal year ended March 31, 2013. The decrease was attributable mainly to a decrease in income from trading and others due mainly to the particularly strong results in the previous fiscal year. This decrease was offset in part by increases in gross profits related to our customer groups attributable to an increase in income mainly in Asia in international banking, an increase in solution business-related income in corporate banking (large corporations) and an increase in sales of investment trusts in personal banking.

General and administrative expenses for the fiscal year ended March 31, 2014 increased by ¥25.6 billion, or 3.3%, compared to the fiscal year ended March 31, 2013 to ¥791.1 billion due mainly to expenses related to the next-generation IT systems and the depreciation of the yen against the dollar and other major currencies, which increased the yen-equivalent costs related to our overseas operations, offset in part by our group-wide cost reduction efforts, including our cost restructuring measures.

As a result mainly of the foregoing, net business profits for the fiscal year ended March 31, 2014 decreased by ¥204.1 billion, or 25.6%, compared to the fiscal year ended March 31, 2013 to ¥593.0 billion.

Fiscal year ended March 31, 2013 compared to fiscal year ended March 31, 2012

Gross profits for the fiscal year ended March 31, 2013 were ¥1,562.6 billion, an increase of ¥82.1 billion, or 5.5%, compared to the fiscal year ended March 31, 2012. The increase was attributable mainly to an increase in income from trading and others as a result of flexible and timely asset-and-liability management operations that appropriately captured market trends in domestic and overseas financial markets, an increase in income mainly in Asia in international banking and an increase in noninterest income such as solution business-related income in corporate banking.

General and administrative expenses for the fiscal year ended March 31, 2013 decreased by ¥35.8 billion, or 4.5%, compared to the fiscal year ended March 31, 2012 to ¥765.5 billion due mainly to our group-wide cost reduction efforts offset in part by an increase in expenses related to overseas business resulting mainly from the depreciation of the yen.

As a result mainly of the foregoing, net business profits for the fiscal year ended March 31, 2013 increased by ¥117.9 billion, or 17.4%, compared to the fiscal year ended March 31, 2012 to ¥797.1 billion.

Mizuho Trust & Banking

Fiscal year ended March 31, 2014 compared to fiscal year ended March 31, 2013

Gross profits for Mizuho Trust & Banking for the fiscal year ended March 31, 2014 were ¥148.3 billion, an increase of ¥3.8 billion, or 2.6%, compared to the fiscal year ended March 31, 2013. The increase was attributable mainly to an increase in noninterest income related to pension and asset management and real estate businesses reflecting the recovery in market conditions.

General and administrative expenses for Mizuho Trust & Banking for the fiscal year ended March 31, 2014 increased by ¥0.8 billion, or 0.9%, compared to the fiscal year ended March 31, 2013 to ¥90.9 billion. We were able to maintain expense levels similar to the previous fiscal year due mainly to our group-wide cost reduction efforts.

As a result mainly of the foregoing, net business profits for Mizuho Trust & Banking for the fiscal year ended March 31, 2014 increased by ¥3.6 billion, or 7.1%, compared to the fiscal year ended March 31, 2013 to ¥54.5 billion.

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Fiscal year ended March 31, 2013 compared to fiscal year ended March 31, 2012

Gross profits for Mizuho Trust & Banking for the fiscal year ended March 31, 2013 were ¥144.5 billion, a decrease of ¥2.8 billion, or 1.9%, compared to the fiscal year ended March 31, 2012. The decrease was attributable mainly to a decrease in trading-related income. The decrease was offset in part by an increase in income from pension and asset management and real estate businesses.

General and administrative expenses for Mizuho Trust & Banking for the fiscal year ended March 31, 2013 decreased by ¥2.2 billion, or 2.4%, compared to the fiscal year ended March 31, 2012 to ¥90.1 billion. The decrease was due mainly to our group-wide cost reduction efforts, including our cost restructuring measures.

As a result mainly of the foregoing, net business profits for Mizuho Trust & Banking for the fiscal year ended March 31, 2013 decreased by ¥0.4 billion, or 0.8%, compared to the fiscal year ended March 31, 2012 to ¥50.9 billion.

Mizuho Securities

Fiscal year ended March 31, 2014 compared to fiscal year ended March 31, 2013

Gross profits for Mizuho Securities for the fiscal year ended March 31, 2014 were ¥286.8 billion, an increase of ¥59.6 billion, or 26.2%, compared to the fiscal year ended March 31, 2013. The increase was attributable mainly to the impact of the merger with Mizuho Investors Securities as well as an increase in equity brokerage commissions and income related to investment trusts reflecting the recovery in market conditions.

General and administrative expenses for Mizuho Securities for the fiscal year ended March 31, 2014 increased by ¥49.1 billion, or 24.9%, compared to the fiscal year ended March 31, 2013 to ¥246.2 billion. The increase was due mainly to the impact of the merger with Mizuho Investors Securities in January 2013 as well as an increase in personnel expenses reflecting the recovery in operating results.

As a result mainly of the foregoing, net business profits for Mizuho Securities for the fiscal year ended March 31, 2014 increased by ¥10.5 billion, or 34.9%, compared to the fiscal year ended March 31, 2013 to ¥40.6 billion.

Fiscal year ended March 31, 2013 compared to fiscal year ended March 31, 2012

Gross profits for Mizuho Securities for the fiscal year ended March 31, 2013 were ¥227.2 billion, an increase of ¥83.6 billion, or 58.2%, compared to the fiscal year ended March 31, 2012. The increase was attributable mainly to an increase in fees and commissions and trading income reflecting the recovery in market conditions.

General and administrative expenses for Mizuho Securities for the fiscal year ended March 31, 2013 increased by ¥4.2 billion, or 2.2%, compared to the fiscal year ended March 31, 2012 to ¥197.1 billion. The increase was due mainly to the impact of the merger with Mizuho Investors Securities in January 2013 offset in part by our group-wide cost reduction efforts.

As a result mainly of the foregoing, net business profits for Mizuho Securities for the fiscal year ended March 31, 2013 was ¥30.1 billion, an improvement of ¥79.5 billion compared to the fiscal year ended March 31, 2012.

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Geographical Segment Analysis

The following table presents consolidated income statement and total assets information by major geographic area. Foreign activities are defined as business transactions that involve customers residing outside of Japan. However, as our operations are highly integrated globally, we have made estimates and assumptions for the allocation of assets, liabilities, income and expenses among the geographic areas.

	Japan		Americas		Europe		Asia/Oceania excluding Japan, and others		Total
	(in billions of yen)
Fiscal year ended March 31, 2012:
Total revenue(1)	¥	1,966	¥	251	¥	132	¥	178	¥	2,527
Total expenses(2)		1,561		104		103		96		1,864
Income before income tax expense		405		147		29		82		663
Net income	¥	419	¥	131	¥	28	¥	71	¥	649
Total assets at end of fiscal year	¥	124,444	¥	25,369	¥	8,868	¥	7,681	¥	166,362
Fiscal year ended March 31, 2013:
Total revenue(1)	¥	2,191	¥	384	¥	126	¥	162	¥	2,863
Total expenses(2)		1,669		141		48		120		1,978
Income before income tax expense		522		243		78		42		885
Net income	¥	525	¥	252	¥	75	¥	29	¥	881
Total assets at end of fiscal year	¥	126,769	¥	31,169	¥	10,591	¥	10,218	¥	178,747
Fiscal year ended March 31, 2014:
Total revenue(1)	¥	1,783	¥	350	¥	153	¥	219	¥	2,505
Total expenses(2)		1,397		145		96		141		1,779
Income before income tax expense		386		205		57		78		726
Net income	¥	198	¥	190	¥	54	¥	58	¥	500
Total assets at end of fiscal year	¥	124,558	¥	27,528	¥	10,784	¥	12,829	¥	175,699

Notes:

(1) Total revenue includes interest and dividend income and noninterest income.

(2) Total expenses include interest expense, provision (credit) for loan losses and noninterest expenses.

Fiscal Year Ended March 31, 2014 Compared to Fiscal Year Ended March 31, 2013

In the fiscal year ended March 31, 2014, 39.6% of our net income was derived from Japan, 38.0% from the Americas, 10.8% from Europe and 11.6% from Asia/Oceania excluding Japan, and others. At March 31, 2014, 70.9% of total assets were allocated to Japan, 15.7% to the Americas, 6.1% to Europe and 7.3% to Asia/Oceania excluding Japan, and others.

In Japan, total revenue decreased by ¥408 billion from the previous fiscal year due mainly to the change from trading account gains—net in the previous fiscal year to trading account losses—net in the fiscal year ended March 31, 2014, offset in part by an increase in investment gains—net. The change in trading account gains (losses)—net was due mainly to an increase in losses related to changes in the fair value of foreign currency-denominated available-for-sale securities for which the fair value option was elected, reflecting a rise in long-term interest rates, and an increase in losses related to changes in the fair value of derivative financial instruments used to hedge market risks, mainly interest rate risks, that are not eligible for hedge accounting under U.S. GAAP. The increase in investment gains—net was due mainly to a decrease in impairment losses on equity securities and an increase in gains on sales of equity securities, both of which were results of an upturn in

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domestic stock market conditions during the fiscal year ended March 31, 2014. Total expenses decreased by ¥272 billion from the previous fiscal year due to the change from provision for loan losses in the previous fiscal year to credit for loan losses in the fiscal year ended March 31, 2014. The change in provision (credit) for loan losses was due primarily to a decrease in allowance for loan losses on impaired loans as a result of upgrades and collections related to some borrowers and allowance for loan losses on non-impaired loans reflecting upgrades in the obligor categories of a broad range of borrowers mainly through our credit management activities, including business revitalization support for borrowers, reflecting the continuing gradual recovery of the Japanese economy. In addition, we had an income tax expense of ¥188 billion in the fiscal year ended March 31, 2014 compared to an income tax benefit of ¥3 billion in the previous fiscal year. As a result, net income in Japan decreased by ¥327 billion. Total assets in Japan decreased by ¥2,211 billion due primarily to decreases in investments and trading account assets, offset in part by an increase in interest-bearing deposits in other banks.

In the Americas, total revenue decreased by ¥34 billion due primarily to decreases in trading account gains—net and investment gains—net, offset in part by an increase in interest income from loans. The decrease in trading account gains—net was due mainly to a decrease in gains recorded by consolidated VIEs. The decrease in investment gains was due mainly to a decrease in gains on sales of equity securities which had been held by our consolidated investment company. The increase in interest income from loans was due to increases in the average balance. Total expenses increased by ¥4 billion due primarily to increases in salaries and employee benefits, general and administrative expenses and fees and commission expenses, offset in part by a decrease in interest expense on short-term borrowings. As a result, net income in the Americas decreased by ¥62 billion. Total assets in the Americas decreased by ¥3,641 billion due primarily to a decrease in trading account assets.

In Europe, total revenue increased by ¥27 billion due primarily to an increase in interest income from loans. Total expenses increased by ¥48 billion due mainly to a decrease in credit for loan losses. As a result, net income in Europe decreased by ¥21 billion. Total assets in Europe increased by ¥193 billion due primarily to an increase in trading account assets.

In Asia/Oceania excluding Japan, and others, total revenue increased by ¥57 billion due primarily to an increase in interest income from loans. The increase in interest income from loans was due to an increase in the average balance. Total expenses increased by ¥21 billion due mainly to increases in interest expense on interest-bearing deposits and salaries and employee benefits. As a result, net income in Asia/Oceania excluding Japan, and others increased by ¥29 billion. Total assets in Asia/Oceania excluding Japan, and others increased by ¥2,611 billion due primarily to an increase in loans.

Fiscal Year Ended March 31, 2013 Compared to Fiscal Year Ended March 31, 2012

In the fiscal year ended March 31, 2013, 59.6% of our net income was derived from Japan, 28.6% from the Americas, 8.5% from Europe and 3.3% from Asia/Oceania excluding Japan, and others. At March 31, 2013, 70.9% of total assets were allocated to Japan, 17.5% to the Americas, 5.9% to Europe and 5.7% to Asia/Oceania excluding Japan, and others.

In Japan, total revenue increased by ¥225 billion from the previous fiscal year due mainly to the change from investment losses—net in the previous fiscal year to investment gains—net in the fiscal year ended March 31, 2013 and an increase in trading account gains—net, offset in part by a decrease in interest and dividend income. The change in investment gains (losses)—net was due mainly to investment gains related to equity securities in the fiscal year ended March 31, 2013 compared to investment losses related to equity securities in the previous fiscal year and an increase in investment gains related to bonds. The change in investment gains (losses) related to equity securities was due mainly to an increase in gains on sales of equity securities as a result of an upturn in domestic stock market conditions. The increase in investment gains related to bonds was due mainly to an increase in gains related to sales of Japanese government bonds as a result of declining yen interest rates. The increase in trading account gains—net was due mainly to an increase in trading account gains earned by our securities subsidiary related to bonds reflecting a decline in yen interest rate levels and related to domestic equity securities reflecting an upturn in domestic market conditions. The decrease in

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interest and dividend income was due mainly to a decrease in interest income from domestic loans, which in turn was due mainly to a decrease in the average yield, reflecting a decline in yen interest rate levels, and a decrease in the average balance. Total expenses increased by ¥108 billion from the previous fiscal year due to an increase in provision for loan losses, offset in part by a decrease in noninterest expenses. The increase in provision for loan losses was due primarily to an increase in allowance for loan losses on non-impaired loans. The decrease in noninterest expenses was due mainly to decreases in general and administrative expenses and salaries and employee benefits. The decrease in general and administrative expenses was due mainly to our continuous group-wide cost reduction efforts and the decrease in salaries and employee benefits was due mainly to the effect of decreased employee retirement benefit expenses. In addition, income tax benefit decreased by ¥11 billion from the previous fiscal year due mainly to an increase in current income tax expense. As a result, net income in Japan increased by ¥106 billion. Total assets in Japan increased by ¥2,325 billion due primarily to an increase in interest-bearing deposits in other banks, offset in part by decreases in investments and trading account assets.

In the Americas, total revenue increased by ¥133 billion due primarily to increases in trading account gains—net and interest and dividend income. The increase in trading account gains—net was due mainly to an increase in gains recorded by consolidated VIEs as a result of an improvement in market conditions and an increase in gains related to change in the fair value of foreign currency-denominated available-for-sale securities for which the fair value option was elected. The increase in interest and dividend income was due mainly to an increase in interest income on receivables under resale agreements of our securities subsidiary in the United States. Total expenses increased by ¥37 billion due primarily to increases in interest expense on payables under repurchase agreements of our securities subsidiary in the United States and salaries and employee benefits. As a result, net income in the Americas increased by ¥121 billion. Total assets in the Americas increased by ¥5,800 billion due primarily to increases in trading account assets and loans.

In Europe, total revenue decreased by ¥6 billion due primarily to a decrease in interest income on receivables under resale agreements. Total expenses decreased by ¥55 billion due mainly to a decrease in provision for loan losses. As a result, net income in Europe increased by ¥47 billion. Total assets in Europe increased by ¥1,723 billion due primarily to increases in trading account assets and loans.

In Asia/Oceania excluding Japan, and others, total revenue decreased by ¥16 billion due primarily to a decrease in other noninterest income, offset in part by an increase in interest from loans, which in turn was due mainly to an increase in the average balance. The decrease in other noninterest income was due mainly to a decrease in foreign exchange gains (losses)—net. Total expenses increased by ¥24 billion due mainly to increases in provision for loan losses and salaries and employee benefits. As a result, net income in Asia/Oceania excluding Japan, and others decreased by ¥42 billion. Total assets in Asia/Oceania excluding Japan, and others increased by ¥2,537 billion due primarily to increases in loans and investments.

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Financial Condition

Assets

Our assets as of March 31, 2013 and 2014 were as follows:

	As of March 31,						Increase (decrease)
	2013			2014
	(in billions of yen)
Cash and due from banks	¥	1,268		¥	1,697		¥	429
Interest-bearing deposits in other banks		11,216			19,037			7,821
Call loans and funds sold		531			468			(63	)
Receivables under resale agreements		9,025			8,349			(676	)
Receivables under securities borrowing transactions		5,544			5,011			(533	)
Trading account assets		34,067			27,408			(6,659	)
Investments		43,252			35,482			(7,770	)
Loans		69,833			73,485			3,652
Allowance for loan losses		(773	)		(626	)		147
Loans, net of allowance		69,060			72,859			3,799
Premises and equipment—net		1,092			1,357			265
Due from customers on acceptances		102			92			(10	)
Accrued income		276			264			(12	)
Goodwill		6			12			6
Intangible assets		64			59			(5	)
Deferred tax assets		642			405			(237	)
Other assets		2,602			3,199			597
Total assets	¥	178,747		¥	175,699		¥	(3,048	)

Total assets decreased by ¥3,048 billion from March 31, 2013 to ¥175,699 billion as of March 31, 2014. This decrease was due mainly to a decrease of ¥7,770 billion in investments, primarily Japanese government bonds, and a decrease of ¥6,659 billion in trading account assets, primarily derivative contracts and U.S. Treasury bonds, offset in part by an increase of ¥7,821 billion in interest-bearing deposits in other banks, primarily those in the Bank of Japan, and an increase of ¥3,799 billion in loans, net of allowance.

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Loans

Loans Outstanding

The following table shows our loans outstanding as of March 31, 2013 and 2014:

	As of March 31,										Increase (decrease)
	2013					2014
	(in billions of yen, except percentages)
Domestic:
Manufacturing	¥	8,079		11.5	%	¥	8,026		10.9	%	¥	(53	)	(0.6	)%
Construction and real estate		7,478		10.7			7,205		9.8			(273	)	(0.9	)
Services		3,972		5.7			3,957		5.4			(15	)	(0.3	)
Wholesale and retail		5,356		7.6			5,351		7.3			(5	)	(0.3	)
Transportation and communications		3,147		4.5			3,247		4.4			100		(0.1	)
Banks and other financial institutions		3,143		4.5			3,460		4.7			317		0.2
Government and public institutions		6,907		9.9			6,734		9.1			(173	)	(0.8	)
Other industries(1)		4,522		6.5			4,983		6.8			461		0.3
Individuals		11,976		17.1			11,975		16.2			(1	)	(0.9	)
Mortgage loans		11,234		16.1			11,187		15.2			(47	)	(0.9	)
Other		742		1.0			788		1.0			46		0.0
Total domestic		54,580		78.0			54,938		74.6			358		(3.4	)
Foreign:
Commercial and industrial		10,481		15.0			12,938		17.6			2,457		2.6
Banks and other financial institutions		4,089		5.8			4,610		6.3			521		0.5
Government and public institutions		596		0.9			883		1.2			287		0.3
Other(1)		199		0.3			255		0.3			56		0.0
Total foreign		15,365		22.0			18,686		25.4			3,321		3.4
Subtotal		69,945		100.0	%		73,624		100.0	%		3,679		—
Less: Unearned income and deferred loan fees—net		(112	)				(139	)				(27	)
Total loans before allowance for loan losses	¥	69,833				¥	73,485				¥	3,652

Note:

(1) “Other industries” within domestic and “other” within foreign include trade receivables and lease receivables of consolidated variable interest entities.

Total loans before allowance for loan losses increased by ¥3,652 billion from March 31, 2013 to ¥73,485 billion as of March 31, 2014. Loans to domestic borrowers increased by ¥358 billion to ¥54,938 billion due mainly to increases in loans to other industries, including loans to utility industry and those relating to consolidated variable interest entities, and banks and other financial institutions. The increases were offset in part by decreases in loans to construction and real estate, and government and public institutions.

Loans to foreign borrowers increased by ¥3,321 billion from March 31, 2013 to ¥18,686 billion as of March 31, 2014. The increase in loans to foreign borrowers was due mainly to increases in loans to commercial and industrial, mainly in Asia, and a roughly equal effect of the translation impact of the depreciation of the yen against other major currencies.

Within our loan portfolio, the proportion of loans to domestic borrowers against gross total loans decreased from 78.0% to 74.6% while that of loans to foreign borrowers against gross total loans increased from 22.0% to 25.4%.

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Impaired Loans

General

In accordance with our group’s credit risk management policies, we use an internal rating system that consists of credit ratings and pool allocations as the basis of our risk management infrastructure. Credit ratings consist of obligor ratings which represent the level of credit risk of the obligor, and transaction ratings which represent the ultimate possibility of incurring losses on individual loan by taking into consideration various factors such as collateral or guarantees involved. In principle, obligor ratings are applied to all obligors except those to which pool allocations are applied, and are subject to regular review at least once a year as well as special review which is required whenever the obligor’s credit standing changes. Pool allocations are applied to small balance loans. We pool loans with similar risk characteristics, and the risk is assessed and managed according to such pools. We generally review the appropriateness and effectiveness of the approach to obligor ratings and pool allocations once a year in accordance with predetermined procedures. The table below presents our definition of obligor ratings used by Mizuho Bank and Mizuho Trust & Banking:

Obligor category	Obligor rating	Definition
Normal	A	Obligors whose certainty of debt fulfillment is very high, hence their level of credit risk is very low.
	B	Obligors whose certainty of debt fulfillment poses no problems for the foreseeable future, and their level of credit risk is low.
	C	Obligors whose certainty of debt fulfillment and their level of credit risk pose no problems for the foreseeable future.
	D	Obligors whose current certainty of debt fulfillment poses no problems, however, their resistance to future environmental changes is low.
Watch(1)	E1	Obligors that require observation going forward because of either minor concerns regarding their financial position, or somewhat weak or unstable business conditions.
	E2	Obligors that require special observation going forward because of problems with their borrowings such as reduced or suspended interest payments, problems with debt fulfillment such as failure of principal or interest payments, or problems with their financial position as a result of their weak or unstable business condition.
Intensive control	F	Obligors that are not yet bankrupt but are in financial difficulties and are deemed likely to become bankrupt in the future because of insufficient progress in implementing their management improvement plans or other measures (including obligors that are receiving ongoing support from financial institutions).
Substantially bankrupt	G	Obligors that have not yet become legally or formally bankrupt but are substantially insolvent because they are in serious financial difficulties and are deemed to be incapable of being restructured.
Bankrupt	H	Obligors that have become legally or formally bankrupt.

Note:

(1) Special attention obligors are watch obligors with debt in troubled debt restructuring or 90 days or more delinquent debt, and we consider all such loans impaired.

We consider loans to be impaired when it is probable that we will be unable to collect all the scheduled payments of principal and interest when due according to the contractual terms of the loan. We classify loans to special attention, intensive control, substantially bankrupt and bankrupt obligors as impaired loans, and all of our impaired loans are designated as nonaccrual loans. We do not have any loans to borrowers that cause management to have serious doubts as to the ability of such borrowers to comply with the present loan repayment terms for the periods presented other than those already designated as impaired loans. See “Item 11. Quantitative and Qualitative Disclosures about Market Risk—Credit Risk Management” for descriptions of our self-assessment procedures and our internal credit rating system.

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Our credit management activities consist of activities such as efforts to provide management consultation to support borrowers’ business initiatives, to increase the quantity and enhance the quality of loan collateral, and to adjust loan balances to an appropriate level, when the borrower’s credit quality is showing a decline. These activities can lead to improvements in obligor classifications through improvements in the business and financial condition of borrowers and, as a result, a reduction in allowance for loan losses.

We endeavor to remove impaired loans from our balance sheet within three years from the time when they are categorized through methods such as collection, charge-offs, disposal and improving the borrowers’ credit rating through restructuring efforts.

Loan modifications

Restructuring efforts are made through our various business revitalization support measures conducted based on requests from borrowers that are in a weakened state that require some form of support. When confronted with the decision of whether to agree to business revitalization support, which includes forgiveness of debt (including debt to equity swaps), reductions in stated interest rates to below market levels and postponement of payment of principal and/or interest (other than insignificant extensions), we carefully consider whether it is beneficial to our shareholders and depositors based on various factors such as whether (i) a legal reorganization process would significantly damage the obligor’s business value so that there is a fear that the obligor will not be able to restructure its business, (ii) the restructuring plan is appropriate and is economically rational from the viewpoint of minimizing Mizuho’s losses compared to other processes, (iii) both the management and shareholders of the obligor will clearly bear responsibility, and (iv) the allocation of losses among creditors is rational and highly justifiable. The triggers and factors that we review to identify restructured loans are modifications imposed by law or a court of law and alterations based on agreement with the borrower such as the reduction of the stated interest rate and forgiveness of debt (including debt to equity swaps), and we consider restructured loans, with respect to which concessions that it would not otherwise consider were granted to obligors in financial difficulty, as “troubled debt restructuring.” We consider the relevant obligor to be in financial difficulty when its rating based on our internal rating system is E2 or below. The types of concessions that we would not otherwise consider include the various forms of business revitalization support described above. In general, troubled debt restructurings will return to non-impaired loans, as well as accrual status, when we determine that the borrower poses no problems regarding current certainty of debt fulfillment, i.e., the borrower qualifies for a rating of D or above based on our internal rating system. Based on our historical experience, it typically takes approximately 1.5 years for the troubled debt restructuring loans in nonaccrual status to be returned to accrual status.

We determine whether restructured loans other than troubled debt restructurings are impaired loans based on the application of our internal rating system as we do generally with respect to all obligors. We determine whether restructured loans are past due or current by comparing the obligors’ payments with the modified contract terms. The effect of the restructuring on the obligors is considered in developing the allowance based on the restructuring’s effect on the estimation of future cash flows of such loans. At March 31, 2014, the balance of restructurings that are troubled debt restructurings was ¥631 billion, and the balance of restructurings that are not troubled debt restructurings was ¥186 billion. Also, the amount of charge-offs recorded as a result of troubled debt restructurings that were made during the fiscal year ended March 31, 2014 was ¥1 billion.

While we maintain basic guidelines covering restructured loans, we do not have any standardized modification programs. Instead, we apply various modifications as is appropriate for the specific circumstances of the obligor in question. We do not have a policy that specifically limits the number of modifications that can be performed for a specific loan.

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Balance of impaired loans

The following table shows our impaired loans as of March 31, 2013 and 2014 based on classifications by domicile and industry segment:

	As of March 31,										Increase (decrease)
	2013					2014
	Impaired loans		Ratio to gross total loans to industry			Impaired loans		Ratio to gross total loans to industry			Impaired loans			Ratio to gross total loans to industry
	(in billions of yen, except percentages)
Domestic:
Manufacturing	¥	336		4.2	%	¥	229		2.9	%	¥	(107	)		(1.3	)%
Construction and real estate		249		3.3			138		1.9			(111	)		(1.4	)
Services		90		2.3			79		2.0			(11	)		(0.3	)
Wholesale and retail		173		3.2			156		2.9			(17	)		(0.3	)
Transportation and communications		59		1.9			48		1.5			(11	)		(0.4	)
Banks and other financial institutions		14		0.4			11		0.3			(3	)		(0.1	)
Other industries		5		0.0			1		0.0			(4	)		0.0
Individuals		235		2.0			195		1.6			(40	)		(0.4	)
Total domestic		1,161		2.1			857		1.6			(304	)		(0.5	)
Foreign		303		2.0			288		1.5			(15	)		(0.5	)
Total impaired loans	¥	1,464		2.1		¥	1,145		1.6		¥	(319	)		(0.5	)

Impaired loans decreased by ¥319 billion, or 21.8%, from March 31, 2013 to ¥1,145 billion as of March 31, 2014. Impaired loans to domestic borrowers decreased by ¥304 billion due primarily to decreases in manufacturing and construction and real estate as a result of upgrades and collections related to some borrowers. Impaired loans to foreign borrowers decreased by ¥15 billion, attributable to declines in almost all regions.

Reflecting the aforementioned change, the percentage of impaired loans within gross total loans decreased from 2.1% as of March 31, 2013 to 1.6% as of March 31, 2014. The percentage of impaired loans net of allowance to gross total loans net of allowance decreased from 1.00% as of March 31, 2013 to 0.71% as of March 31, 2014 due to a decrease in impaired loans net of allowance and an increase in gross total loans net of allowance.

Allowance for Loan Losses

Calculation of allowance for loan losses

Our self-assessment and credit-rating procedures serve as the basis for determining the amount of the allowance for loan losses. The specific methods of calculating the allowance for each category of obligors are as follows:

Normal and watch obligors A formula allowance is calculated separately for obligors with small balance, homogeneous loans and for each credit rating category of corporate obligors by multiplying the loan balance with the applicable default ratio (based on internal historical data as well as data provided by third-party credit rating agencies) and the applicable average impairment ratio on defaulted loans (based on internal historical data).

Special attention obligors The allowance for special attention obligors is generally calculated individually based on the present value of expected future cash flows discounted at the loan’s initial effective interest rate. A formula

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allowance for certain special attention obligors is calculated by grouping the loans to such obligors and applying the formula described above for normal and watch obligors but using the default ratio and average impairment ratio specific to this category.

Intensive control obligors The allowance for intensive control obligors is generally calculated individually based on the present value of expected future cash flows discounted at the loan’s initial effective interest rate, based on the loan’s observable market price, or based on the fair value of the collateral if the loan is collateral dependent. The allowance for certain intensive control obligors is calculated by grouping the loans to such obligors and multiplying the amount of loans less estimated collateral value by the default ratio and average impairment ratio specific to this category.

Substantially bankrupt and bankrupt obligors The allowance is calculated individually and is equal to loan balance, less estimated collateral value.

Balance of allowance for loan losses

The following table summarizes the allowance for loan losses by component and as a percentage of the corresponding loan balance as of March 31, 2013 and 2014:

	As of March 31,						Increase (decrease)
	2013			2014
	(in billions of yen, except percentages)
Allowance for loan losses on impaired loans(1) (A)	¥	406		¥	323		¥	(83	)
Allowance for loan losses on non-impaired loans (B)		367			303			(64	)
Total allowance for loan losses (C)		773			626			(147	)
Impaired loans requiring an allowance for loan losses (D)		1,242			958			(284	)
Impaired loans not requiring an allowance for loan losses (E)		222			187			(35	)
Non-impaired loans(2) (F)		68,481			72,479			3,998
Gross total loans (G)	¥	69,945		¥	73,624		¥	3,679
Percentage of allowance for loan losses on impaired loans against the balance of impaired loans requiring an allowance (A)/(D)x100		32.71	%		33.72	%		1.01	%
Percentage of allowance for loan losses on non-impaired loans against the balance of non-impaired loans (B)/(F)x100		0.54			0.42			(0.12	)
Percentage of total allowance for loan losses against gross total loans (C)/(G)x100		1.11			0.85			(0.26	)

Notes:

(1) The allowance for loan losses on impaired loans includes those for groups of small balance, homogeneous loans totaling ¥505 billion and ¥425 billion as of March 31, 2013 and 2014 which were collectively evaluated for impairment, in addition to those that were individually evaluated for impairment.

(2) Non-impaired loans refer to loans categorized as “normal obligors” and “watch obligors (excluding special attention obligors)” under our internal rating system.

Allowance for loan losses decreased by ¥147 billion from March 31, 2013 to ¥626 billion as of March 31, 2014. This decrease was due to a decrease of ¥83 billion in the allowance for loan losses on impaired loans as a result of a decrease in domestic impaired loans requiring an allowance for loan losses, and a decrease of

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¥64 billion in the allowance for loan losses on non-impaired loans. The allowance for loan losses on non-impaired loans decreased due primarily to upgrades in the obligor categories of a broad range of borrowers mainly through our credit management activities, including business revitalization support for borrowers, reflecting the continuing gradual recovery of the Japanese economy as described in “—Overview—Operating Environment.” As a result, the percentage of total allowance for loan losses against gross total loans decreased by 0.26% to 0.85%, and the percentage of allowance for loan losses on impaired loans against the balance of impaired loans requiring an allowance increased by 1.01% to 33.72%.

The primary factors behind the gap between the 19.0% decrease in allowance for loan losses and the 5.3% increase in the balance of gross total loans in the fiscal year ended March 31, 2014 compared to the previous fiscal year consisted mainly of the increase in the balance of non-impaired loans and the decrease in allowance for loan losses both on impaired loans and non-impaired loans due to improvements in our loan portfolio.

In the fiscal year ended March 31, 2014, impaired loans decreased by 21.8% due mainly to a decrease in domestic impaired loans. Allowance for loan losses on impaired loans decreased by 20.5%.

The coverage ratio for impaired loans increased by 1.9% as of March 31, 2014 compared to the previous fiscal year. This was due to how the percentage decrease in the amount of impaired loans was greater than the percentage decrease of allowance for loan losses.

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Provision (credit) for loan losses

The following table summarizes changes in our allowance for loan losses, including a breakdown of charge-offs and recoveries by domicile and industry segment, in the fiscal years ended March 31, 2013 and 2014:

	Fiscal years ended March 31,					Increase (decrease)
	2013		2014
	(in billions of yen)
Allowance for loan losses at beginning of fiscal year	¥	683	¥	773		¥	90
Provision (credit) for loan losses		140		(126	)		(266	)
Charge-offs:
Domestic:
Manufacturing		25		20			(5	)
Construction and real estate		5		1			(4	)
Services		10		3			(7	)
Wholesale and retail		11		13			2
Transportation and communications		2		7			5
Individuals		17		13			(4	)
Total domestic charge-offs		70		57			(13	)
Foreign		25		8			(17	)
Total charge-offs		95		65			(30	)
Recoveries:
Domestic:
Manufacturing		4		6			2
Construction and real estate		8		5			(3	)
Services		3		3			—
Wholesale and retail		3		3			—
Transportation and communications		1		3			2
Banks and other financial institutions		1		—			(1	)
Other industries		—		1			1
Individuals		4		3			(1	)
Total domestic recoveries		24		24			—
Foreign		8		2			(6	)
Total recoveries		32		26			(6	)
Net charge-offs		63		39			(24	)
Others(1)		13		18			5
Balance at end of fiscal year	¥	773	¥	626		¥	(147	)

Note:

(1) “Others” include primarily foreign exchange translation.

We recorded a credit for loan losses of ¥126 billion in the fiscal year ended March 31, 2014 compared to a provision for loan losses of ¥140 billion in the fiscal year ended March 31, 2013. The change was due primarily to a decrease in allowance for loan losses on domestic impaired loans as a result of upgrades and collections related to some borrowers and allowance for loan losses on non-impaired loans reflecting upgrades in the obligor categories of a broad range of borrowers mainly through our credit management activities, including business revitalization support for borrowers, reflecting the continuing gradual recovery of the Japanese economy as described in “—Overview—Operating Environment.”

Charge-offs decreased by ¥30 billion from the previous fiscal year to ¥65 billion for the fiscal year ended March 31, 2014, reflecting decreases in charge-offs of foreign loans and domestic loans. Recoveries decreased by ¥6 billion from the previous fiscal year to ¥26 billion in the fiscal year ended March 31, 2014, reflecting a decrease in recoveries on foreign loans.

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Investments

The majority of our investments are available-for-sale securities, which at March 31, 2013 and 2014 were as follows:

	As of March 31,												Increase (decrease)
	2013						2014
	Amortized cost		Fair value		Net unrealized gains (losses)		Amortized cost		Fair value		Net unrealized gains (losses)		Amortized cost			Fair value			Net unrealized gains (losses)
	(in billions of yen)
Available-for-sale securities:
Debt securities	¥	36,127	¥	36,275	¥	148	¥	27,167	¥	27,227	¥	60	¥	(8,960	)	¥	(9,048	)	¥	(88	)
Japanese government bonds		30,710		30,783		73		22,040		22,056		16		(8,670	)		(8,727	)		(57	)
Other than Japanese government bonds		5,417		5,492		75		5,127		5,171		44		(290	)		(321	)		(31	)
Equity securities (marketable)		1,699		3,139		1,440		1,668		3,422		1,754		(31	)		283			314
Total	¥	37,826	¥	39,414	¥	1,588	¥	28,835	¥	30,649	¥	1,814	¥	(8,991	)	¥	(8,765	)	¥	226

Available-for-sale securities decreased by ¥8,765 billion from March 31, 2013 to ¥30,649 billion at March 31, 2014. This decrease was due primarily to a decrease in Japanese government bonds due to the sales and redemptions as a result of risk management of our bond portfolio. See note 3 to our consolidated financial statements included elsewhere in this annual report for details of other investments included within investments.

Cash and Due from Banks

Cash and due from banks increased by ¥429 billion from March 31, 2013 to ¥1,697 billion at March 31, 2014. The increase was due to net cash provided by operating activities of ¥5,951 billion and net cash provided by investing activities of ¥417 billion offset in part by net cash used in financing activities of ¥5,972 billion.

Liabilities

The following table shows our liabilities as of March 31, 2013 and 2014:

	As of March 31,				Increase (decrease)
	2013		2014
	(in billions of yen)
Deposits	¥	100,222	¥	102,610	¥	2,388
Due to trust accounts		619		742		123
Call money and funds purchased		6,127		7,195		1,068
Payables under repurchase agreements		17,451		16,798		(653	)
Payables under securities lending transactions		11,496		6,266		(5,230	)
Other short-term borrowings		6,724		6,024		(700	)
Trading account liabilities		16,769		14,825		(1,944	)
Bank acceptances outstanding		102		92		(10	)
Income taxes payable		38		57		19
Deferred tax liabilities		14		33		19
Accrued expenses		159		160		1
Long-term debt		8,802		9,854		1,052
Other liabilities		4,367		4,422		55
Total liabilities	¥	172,890	¥	169,078	¥	(3,812	)

Total liabilities decreased by ¥3,812 billion from March 31, 2013 to ¥169,078 billion at March 31, 2014. This decrease was due primarily to a decrease of ¥5,392 billion in short-term borrowings and a decrease of

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¥1,944 billion in trading account liabilities, primarily derivative contracts, offset in part by an increase of ¥2,388 billion in deposits and an increase of ¥1,052 billion in long-term debt. Short-term borrowings include due to trust accounts, call money and funds purchased, payables under repurchase agreements, payables under securities lending transactions and other short-term borrowings.

Deposits

The following table shows a breakdown of our deposits as of March 31, 2013 and 2014:

	As of March 31,				Increase (decrease)
	2013		2014
	(in billions of yen)
Domestic:
Noninterest-bearing deposits	¥	12,139	¥	12,751	¥	612
Interest-bearing deposits		74,218		73,115		(1,103	)
Total domestic deposits		86,357		85,866		(491	)
Foreign:
Noninterest-bearing deposits		836		1,115		279
Interest-bearing deposits		13,029		15,629		2,600
Total foreign deposits		13,865		16,744		2,879
Total deposits	¥	100,222	¥	102,610	¥	2,388

Deposits increased by ¥2,388 billion from March 31, 2013 to ¥102,610 billion at March 31, 2014. Domestic deposits decreased by ¥491 billion from March 31, 2013 to ¥85,866 billion at March 31, 2014. Domestic noninterest-bearing deposits, mainly from Japanese companies, increased by ¥612 billion to ¥12,751 billion at March 31, 2014, and interest-bearing deposits, mainly from individuals, decreased by ¥1,103 billion from March 31, 2013 to ¥73,115 billion at March 31, 2014. The decrease of domestic interest-bearing deposits was due mainly to a decrease in certificates of deposit. Foreign deposits increased by ¥2,879 billion from March 31, 2013 to ¥16,744 billion due mainly to the translation impact of the depreciation of the yen against other major currencies.

Short-term Borrowings

The following table shows a breakdown of our short-term borrowings as of March 31, 2013 and 2014:

	As of March 31,												Increase (decrease)
	2013						2014
	Domestic		Foreign		Total		Domestic		Foreign		Total		Domestic			Foreign			Total
	(in billions of yen)
Due to trust accounts	¥	619	¥	—	¥	619	¥	742	¥	—	¥	742	¥	123		¥	—		¥	123
Call money and funds purchased, and payables under repurchase agreements and securities lending transactions		18,222		16,852		35,074		13,680		16,579		30,259		(4,542	)		(273	)		(4,815	)
Other short-term borrowings		6,544		180		6,724		5,757		267		6,024		(787	)		87			(700	)
Total short-term borrowings	¥	25,385	¥	17,032	¥	42,417	¥	20,179	¥	16,846	¥	37,025	¥	(5,206	)	¥	(186	)	¥	(5,392	)

Short-term borrowings decreased by ¥5,392 billion from March 31, 2013 to ¥37,025 billion at March 31, 2014. Domestic short-term borrowings decreased by ¥5,206 billion due mainly to a decrease in payables under securities lending transactions and other short-term borrowings. Foreign short-term borrowings decreased by ¥186 billion due mainly to a decrease in payables under repurchase agreements.

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Equity

The following table shows a breakdown of equity as of March 31, 2013 and 2014:

	As of March 31,						Increase (decrease)
	2013			2014
	(in billions of yen)
MHFG shareholders’ equity:
Preferred stock	¥	377		¥	313		¥	(64	)
Common stock		5,461			5,489			28
Accumulated deficit		(883	)		(538	)		345
Accumulated other comprehensive income, net of tax		778			1,118			340
Treasury stock, at cost		(5	)		(4	)		1
Total MHFG shareholders’ equity		5,728			6,378			650
Noncontrolling interests		129			243			114
Total equity	¥	5,857		¥	6,621		¥	764

Equity increased by ¥764 billion from March 31, 2013 to ¥6,621 billion due mainly to a decrease in accumulated deficit and an increase in accumulated other comprehensive income, net of tax.

Preferred stock decreased by ¥64 billion from March 31, 2013 to ¥313 billion at March 31, 2014 as a result of the cancellation of the thirteenth series class XIII preferred stock of ¥37 billion and the conversion of preferred stock to common stock of ¥27 billion.

Common stock increased by ¥28 billion from March 31, 2013 to ¥5,489 billion at March 31, 2014 primarily as a result of the issuance of new shares of common stock related to the conversion of preferred stock to common stock.

Accumulated deficit decreased by ¥345 billion from March 31, 2013 to ¥538 billion at March 31, 2014. This decrease was due to net income attributable to MHFG shareholders for the fiscal year ended March 31, 2014 of ¥498 billion offset in part by dividend payments of ¥152 billion.

Accumulated other comprehensive income, net of tax increased by ¥340 billion from March 31, 2013 to ¥1,118 billion at March 31, 2014 due to an improvement in pension liability adjustments of ¥136 billion, an increase in unrealized net gains on available-for-sale securities of ¥128 billion and an improvement in foreign currency translation adjustments of ¥76 billion.

Treasury stock, at cost, decreased by ¥1 billion from March 31, 2013 to ¥4 billion at March 31, 2014. This decrease was due to cancellation and disposal of treasury stock, offset in part by purchases of treasury stock.

Noncontrolling interests increased by ¥114 billion from March 31, 2013 to ¥243 billion at March 31, 2014.

Liquidity

We continuously endeavor to enhance the management of our liquidity profile and strengthen our capital base to meet our customers’ loan demand and deposit withdrawals and respond to unforeseen situations such as adverse movements in stock, foreign currencies, interest rates and other markets or changes in general domestic or international conditions. We manage our liquidity profile through the continuous monitoring of our cash flow situation, the enforcement of upper limits on funds raised in financial markets and other means as further set forth in “Item 11. Quantitative and Qualitative Disclosures about Market Risk—Market and Liquidity Risk Management—Liquidity Risk Management Structure.”

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Deposits, based on our broad customer base and brand recognition in Japan, have been our primary source of liquidity. Our total deposits increased by ¥2,388 billion, or 2.4%, from the end of the previous fiscal year to ¥102,610 billion as of March 31, 2014. Our average balance of deposits for the fiscal year ended March 31, 2014 of ¥101,384 billion exceeded our average balance of loans for the same period by ¥29,734 billion. We invested the excess portion primarily in marketable securities and other high liquidity assets.

Secondary sources of liquidity include short-term borrowings such as call money and funds purchased and payables under repurchase agreement. We also issue long-term debt, including both senior and subordinated debt, as additional sources for liquidity. We utilize short-term borrowings to diversify our funding sources and to manage our funding costs. We raise subordinated long-term debt for the purpose of improving our capital adequacy ratios, which also enhances our liquidity profile. We believe we are able to access such sources of liquidity on a stable and flexible basis based on our current credit ratings. The following table shows credit ratings assigned to our principal banking subsidiaries by S&P and Moody’s as of June 30, 2014:

As of June 30, 2014

S&P

Moody’s

Long-term

Short-term

Stand-alone credit profile

Long-term

Short-term

Financial strength

Mizuho Bank

A+

(1)

A-1

a

A1

P-1

C-

Mizuho Trust & Banking

A+

(1)

A-1

a

A1

P-1

C-

Note:

(1) Negative outlook.

We source our funding in foreign currencies primarily from corporate customers, foreign governments, financial institutions and institutional investors, through short-term and long-term financing, under terms and pricing commensurate with our credit ratings above. In the event of future declines in our credit quality or that of Japan in general, we expect to be able to purchase foreign currencies in sufficient amounts using the yen funds raised through our domestic customer base. As further measures to support our foreign currency liquidity, we hold foreign debt securities, maintain credit lines and swap facilities denominated in foreign currencies and pledge collateral to the U.S. Federal Reserve Bank to support future credit extensions.

In order to maintain an appropriate level of liquidity, our principal banking subsidiaries hold highly liquid investment assets such as Japanese government bonds as liquidity reserve assets. We monitor the amount of liquidity reserve assets and report such amount to the monthly ALM & market risk management committee. Minimum regulatory reserve amounts, or the reserve amount deposited with the Bank of Japan pursuant to applicable regulations that is calculated as a specified percentage of the amount of deposits held by our principal banking subsidiaries, are excluded in connection with our management of liquidity reserve asset levels. We established and apply classifications for the cash flow conditions affecting the group, including the amount of liquidity reserve assets, that range from “normal” to “cause for concern” and “critical” categories, and take appropriate actions based on such conditions. As of March 31, 2014, the balance of Japanese government bonds included within our investments was ¥22.1 trillion (excluding held-to-maturity securities), and a majority of this amount, which has historically not fluctuated significantly over the course of a fiscal year, was classified as the principal component of liquidity reserve assets.

Capital Adequacy

All yen figures and percentages in this subsection are truncated. Accordingly, the total of each column of figures may not be equal to the total of the individual items.

Regulatory Capital Requirements

Mizuho Financial Group and its principal banking subsidiaries are subject to regulatory capital requirements administered by the Financial Services Agency in accordance with the provisions of the Banking Act and related

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regulations. Failure to meet minimum capital requirements may initiate certain mandatory actions by regulators that, if undertaken, could have a direct material effect on our financial condition and results of operations.

The capital adequacy guidelines applicable to Japanese banks and bank holding companies with international operations supervised by the Financial Services Agency closely follow the risk-adjusted approach proposed by the Bank for International Settlements (“BIS”) and are intended to further strengthen the soundness and stability of Japanese banks. Effective March 31, 2007, guidelines were implemented by the Financial Services Agency to comply with the capital adequacy requirements set by BIS called Basel II. The framework of Basel II is based on the following three pillars: minimum capital requirements; supervisory review; and market discipline.

In May 2011, the capital adequacy guidelines were revised by the Financial Services Agency to comply with the package of measures to enhance the Basel II framework approved by the Basel Committee on Banking Supervision in July 2009. The revised guidelines include the strengthening of rules governing trading book capital and the strengthening of treatment of certain securitizations under the first pillar. The revised guidelines have been effective since the end of December 2011.

In December 2010, the Basel Committee on Banking Supervision issued the Basel III rules text (later revised in June 2011 and January 2013), which presents the details of global regulatory standards on bank capital adequacy and liquidity agreed by the Governors and Heads of Supervision, which is the oversight body of the Basel Committee on Banking Supervision, and endorsed by the G20 Leaders at the Seoul summit in November 2010. The rules text sets out higher and better-quality capital, better risk coverage, the introduction of a leverage ratio as a backstop to the risk-based requirement, measures to promote the build-up of capital that can be drawn down in periods of stress, and the introduction of two global liquidity standards. The Financial Services Agency’s revisions to its capital adequacy guidelines became effective from March 31, 2013, which generally reflect rules in the Basel III rules text that have been applied from January 1, 2013. While the three-pillar structure of Basel II has been retained, Basel III includes various changes as described further below.

Under the first pillar, the capital ratio is calculated by dividing regulatory capital, or risk-based capital, by risk-weighted assets. With respect to the calculation of risk-weighted assets, we adopt the advanced internal ratings-based approach. Under such approach, balance sheet assets and off-balance sheet exposures, calculated under Japanese GAAP, are assessed in terms of credit risk according to risk components such as probability of default and loss given default, which are derived from our own internal credit experience. In addition to credit risk, banks are required to measure and apply capital charges with respect to their market risks. Market risk is defined as the risk of losses in on- and off-balance-sheet positions arising from movements in market prices. Operational risk, which was introduced under Basel II with respect to regulatory capital requirements, is the risk of loss resulting from inadequate or failed internal processes, people and systems, or from external events. We adopt the advanced measurement approach for the measurement of operational risk equivalent by taking account of the following four elements: internal loss data; external loss data; scenario analysis; and business environment and internal control factors. Under Basel III, the calculation method of risk-weighted assets was revised, including modification to the treatment of counterparty credit risk, such as a capital charge for credit valuation adjustment risk.

With regard to risk-based capital, the guidelines based on Basel III set out higher and better-quality capital standards compared to those under Basel II. The guidelines based on Basel III require a target minimum standard capital adequacy ratio of 8%, Tier 1 capital ratio of 6% (phased in at 4.5% in 2013 and 5.5% in 2014) and Common Equity Tier 1 capital ratio of 4.5% (phased in at 3.5% in 2013 and 4.0% in 2014), on both a consolidated and non-consolidated basis for banks with international operations, such as Mizuho Bank and Mizuho Trust & Banking, or on a consolidated basis for bank holding companies with international operations, such as Mizuho Financial Group.

Risk-based capital, calculated from financial statements prepared under Japanese GAAP, is classified into the following two tiers: Tier 1 capital; and Tier 2 capital. Tier 1 capital consists of Common Equity Tier 1 capital

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and Additional Tier 1 capital. Common Equity Tier 1 capital generally consists of common stock, capital surplus, retained earnings, accumulated other comprehensive income and other disclosed reserves and others less any regulatory adjustments. Additional Tier 1 capital generally consists of instruments issued by a bank or its holding company that meet the criteria for inclusion in Additional Tier 1 capital and others less any regulatory adjustments. Tier 2 capital generally consists of instruments issued by a bank or its holding company such as subordinated debt that meet the criteria for inclusion in Tier 2 capital, general reserve for possible losses on loans (equaling the sum of (i) the excess of the amount of qualified reserves over the amount of expected losses and (ii) the amount of general reserves calculated based on the standardized approach) and others less any regulatory adjustments.

The minimum requirement for Common Equity Tier 1 capital will be raised in phases from 3.5% of risk-weighted assets in March 2013 to 4.5% when fully effective in March 2015. Thereafter, a capital conservation buffer, to be met with Common Equity Tier 1 capital, is expected to be phased in beginning March 2016 at 0.625% until becoming fully effective in March 2019 at 2.5%, although the capital adequacy guidelines related to the capital conservation buffer have not yet been published by the Financial Services Agency. Thus the Common Equity Tier 1 capital requirement, including capital conservation buffer, is expected to be 7.0% beginning March 2019. In addition, subject to national discretion by the respective regulatory authorities, a countercyclical buffer ranging from 0% to 2.5%, consisting of Common Equity Tier 1 capital or other fully loss absorbing capital, would also be imposed on banking organizations through an extension of the capital conservation buffer when the relevant national authority judges a period of excess credit growth to be leading to the build-up of system-wide risk. The countercyclical buffer for internationally active banks will be a weighted average of the buffers deployed across all the jurisdictions to which it has credit exposures. Moreover, capital instruments that will no longer qualify as Additional Tier 1 capital or Tier 2 capital under Basel III is being phased out beginning March 2013 by increments of 10% until becoming fully effective in March 2022. Our existing preferred stock and preferred securities (the amounts thereof included within Additional Tier 1 capital as of March 31, 2014 being ¥1,666.5 billion) and our existing subordinated debt issued before March 2013 (the amounts thereof included within Tier 2 capital as of March 31, 2014 being ¥1,349.6 billion) are subject to the phase-out arrangements.

In November 2011, the Financial Stability Board announced policy measures to address systemically important financial institutions (“SIFIs”), which were endorsed by the G20 Leaders at the Cannes summit. The policy measures include requirements for globally systemically important banks (“G-SIBs”) to have additional loss absorption capacity tailored to the impact of their default, ranging from 1% to 2.5% of risk-weighted assets, to be met with Common Equity Tier 1 capital, which would be in addition to the 7.0% Common Equity Tier 1 capital requirement (including capital conservation buffer). The additional loss absorbency requirements will initially apply to G-SIBs identified in November 2014. The requirements will be phased in starting in January 2016 with full implementation by January 2019. Also in November 2011, the Financial Stability Board identified an initial group of G-SIFIs, namely 29 G-SIBs, including us, using a methodology developed by the Basel Committee on Banking Supervision, and announced that the group of G-SIFIs will be updated annually and published by the Financial Stability Board each November. In November 2012 and November 2013, the list of G-SIBs was updated and it showed the allocation to buckets corresponding to their required level of additional loss absorbency. We were included in the lists and were allocated to the bucket that would require 1.0% of additional loss absorbency.

Regulatory adjustments are to be applied mainly to the calculation of Common Equity Tier 1 capital in the form of the deductions and prudential filters related to the following:

• Goodwill and other intangibles

• Deferred tax assets

• Deferred gains or losses on derivatives under hedge accounting that relates to the hedging of items that are not fair valued on the balance sheet

• Shortfall of the stock of provisions to expected losses under the internal ratings-based approach

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• Gain on sale related to securitization transactions

• Cumulative gains and losses due to changes in own credit risk on fair valued financial liabilities

• Defined benefit pension fund assets and liabilities

• Treasury stock

• Reciprocal cross holdings of capital of banking, financial and insurance entities

• Investments in the capital of banking, financial and insurance entities that are outside the scope of regulatory consolidation

Regulatory adjustments will be fully deducted in the calculation of Common Equity Tier 1 capital by March 2018. The regulatory adjustments began at 20% of the required deductions in the calculation of Common Equity Tier 1 capital in March 2014 and will be increased by 20% increments per year through March 2018 when the regulatory adjustments reach 100%. During this transition period, the remainder not deducted from capital will continue to be subject to existing national treatments.

The capital requirements and regulatory adjustments will be phased in over a transitional period as follows (italicized percentages indicate those still in transition periods):

	March 2013			March 2014			March 2015			March 2016			March 2017			March 2018			March 2019			March 2020			March 2021			March 2022
Minimum Common Equity Tier 1 capital(1)		3.5	%		4.0	%		4.5	%		4.5	%		4.5	%		4.5	%		4.5	%		4.5	%		4.5	%		4.5	%
Minimum Tier 1 capital(1)		4.5	%		5.5	%		6.0	%		6.0	%		6.0	%		6.0	%		6.0	%		6.0	%		6.0	%		6.0	%
Minimum total capital(1)		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%
Capital conservation buffer		0.0	%		0.0	%		0.0	%		0.625	%		1.25	%		1.875	%		2.5	%		2.5	%		2.5	%		2.5	%
Phase out of recognition of capital instruments that no longer qualify as capital(1)		90.0	%		80.0	%		70.0	%		60.0	%		50.0	%		40.0	%		30.0	%		20.0	%		10.0	%		0.0	%
Phase-in of deductions from capital(1)		0.0	%		20.0	%		40.0	%		60.0	%		80.0	%		100.0	%		100.0	%		100.0	%		100.0	%		100.0	%
Additional loss absorbency requirements for G-SIBs		—			—			—			Additional loss absorption capacity tailored to the impact of the entity’s default, ranging from 1% to 2.5% of risk-weighted assets, to be met with Common Equity Tier 1 capital

Note:

(1) While these measures are included in the revisions to capital adequacy guidelines that have been applied from March 31, 2013 as published by the Financial Services Agency, capital adequacy guidelines related to other requirements under the Basel III rules, such as the capital conservation buffer, countercyclical buffer and additional loss absorbency requirements for G-SIBs/G-SIFIs, have not yet been published.

Japanese banks are also required to comply with the supervisory review process (second pillar) and disclosure requirements for market discipline (third pillar). Under the second pillar, banks are required to maintain adequate capital to support all of the major risks in their business and are encouraged to develop and use better risk management techniques in monitoring and managing such risks. Under the third pillar, banks are required to enhance disclosure, including disclosure of details of the capital adequacy ratio, the amount of each type of risk and the method of calculation used so that the market may make more effective evaluations. Further, the revisions to the Financial Services Agency’s guidelines relating to the third pillar, which reflect the enhanced disclosure requirements under Basel III and became effective on March 31, 2013, require banks to disclose, among other things, the components of their regulatory capital and the main features of their regulatory capital instruments in common templates.

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If the capital adequacy ratio of a financial institution falls below the required level, the Financial Services Agency may, depending upon the extent of capital deterioration, take certain corrective action, including requiring the financial institution to submit an improvement plan to strengthen its capital base, reduce its total assets, restrict its business operations or other actions that could have a material effect on its financial condition and results of operations.

Unless otherwise specified, the regulatory capital information set forth in this “—Capital Adequacy” is based on the current Basel III rules.

Consolidated Capital Adequacy Ratios

Our capital adequacy ratios as of March 31, 2013 and 2014, calculated in accordance with Japanese GAAP and guidelines established by the Financial Services Agency, were as set forth in the following table:

	As of March 31,						Increase (decrease)
	2013			2014
	(in billions of yen, except percentages)
Common Equity Tier 1 capital	¥	4,803.8		¥	5,304.4		¥	500.5
Additional Tier 1 capital		1,683.6			1,540.3			(143.3	)
Tier 1 capital		6,487.4			6,844.7			357.2
Tier 2 capital		1,857.0			1,811.2			(45.8	)
Total capital	¥	8,344.5		¥	8,655.9		¥	311.4
Risk-weighted assets	¥	58,823.5		¥	60,287.4		¥	1,463.8
Common Equity Tier 1 capital ratio		8.16	%		8.79	%		0.63	%
Required Common Equity Tier 1 capital ratio		3.50			4.00			0.50
Tier 1 capital ratio		11.02			11.35			0.33
Required Tier 1 capital ratio		4.50			5.50			1.00
Total capital ratio		14.18			14.35			0.17
Required total capital ratio		8.00			8.00			—

Our total capital ratio as of March 31, 2014 was 14.35%, an increase of 0.17% compared to March 31, 2013. Our Tier 1 capital ratio as of March 31, 2014 was 11.35%, an increase of 0.33% compared to March 31, 2013. Our Common Equity Tier 1 capital ratio as of March 31, 2014 was 8.79%, an increase of 0.63% compared to March 31, 2013. The increases in each ratio were due mainly to an increase in Common Equity Tier 1 capital, offset in part by a decrease in Additional Tier 1 capital and by an increase in risk-weighted assets. We believe that we were in compliance with all capital adequacy requirements to which we were subject as of March 31, 2014.

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Capital

The following table shows a breakdown of our total risk-based capital as of March 31, 2013 and 2014:

	As of March 31,						Increase (decrease)
	2013			2014
	(in billions of yen)
Common Equity Tier 1 capital	¥	4,803.8		¥	5,304.4		¥	500.5
Capital and stock surplus		2,987.1			3,051.8			64.7
Retained earnings		1,814.3			2,314.7			500.4
Treasury stock		(4.6	)		(3.8	)		0.7
Earnings to be distributed		(76.3	)		(88.0	)		(11.6	)
Subscription rights to common shares		2.6			3.1			0.4
Accumulated other comprehensive income and other disclosed reserves		—			156.2			156.2
Common share capital issued by subsidiaries and held by third parties		11.0			10.8			(0.1	)
Instruments and reserves subject to phase-out arrangements		69.6			61.5			(8.0	)
Regulatory adjustments		—			(202.1	)		(202.1	)
Additional Tier 1 capital(1)(2)(3)		1,683.6			1,540.3			(143.3	)
Additional Tier 1 instruments issued by subsidiaries and held by third parties		12.0			25.3			13.3
Eligible Tier 1 capital instruments subject to phase-out arrangements(1)(2)(3)		1,874.8			1,666.5			(208.3	)
Instruments subject to phase-out arrangements		(90.3	)		(50.8	)		39.5
Regulatory adjustments		(112.9	)		(100.7	)		12.1
Tier 1 capital(1)(2)(3)		6,487.4			6,844.7			357.2
Tier 2 capital		1,857.0			1,811.2			(45.8	)
Tier 2 instruments plus related stock surplus issued by special purpose vehicles and other equivalent entities		—			154.3			154.3
Tier 2 instruments issued by subsidiaries and held by third parties		3.9			8.1			4.2
Eligible Tier 2 capital instruments subject to phase-out arrangements		1,518.3			1,349.6			(168.7	)
General allowance for loan losses and eligible provisions included in Tier 2		5.0			7.0			1.9
Instruments and provisions subject to phase-out arrangements		503.1			474.0			(29.1	)
Regulatory adjustments		(173.4	)		(182.0	)		(8.5	)
Total capital(1)(2)(3)	¥	8,344.5		¥	8,655.9		¥	311.4

Notes:

(1) As of March 31, 2014, the outstanding balance of our eleventh series class XI preferred stock was ¥312.6 billion. During the period from April 1, 2014 to June 30, 2014, holders of the preferred stock converted 1,900,000 shares (or ¥1.9 billion) by requesting us to acquire the preferred stock and issue common stock to them.

(2) On July 11, 2013, we acquired and subsequently cancelled all ¥36.9 billion of the thirteenth series class XIII preferred stock.

(3) In June 2014, we redeemed $850.0 million and ¥139.5 billion of non-dilutive preferred securities. The redemption itself may not necessarily cause a reduction in Tier 1 capital or total capital due to the effect of phase-out arrangements.

Our Common Equity Tier 1 capital increased by ¥500.5 billion from ¥4,803.8 billion as of March 31, 2013 to ¥5,304.4 billion as of March 31, 2014. The increase was due mainly to an increase in retained earnings as a result of recording net income for the fiscal year ended March 31, 2014 and to the recording of accumulated other comprehensive income as of March 31, 2014, offset in part by the application of regulatory adjustments as of March 31, 2014. Our Additional Tier 1 capital decreased by ¥143.3 billion from ¥1,683.6 billion as of

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March 31, 2013 to ¥1,540.3 billion as of March 31, 2014. The decrease was due mainly to the effect of the phase-out of recognition of eligible Tier 1 capital instruments subject to phase-out arrangements. As a result, our Tier 1 capital increased by ¥357.2 billion from ¥6,487.4 billion as of March 31, 2013 to ¥6,844.7 billion as of March 31, 2014.

Non-dilutive preferred securities issued by our overseas special purpose companies to investors are included within Additional Tier 1 capital and subject to phase-out arrangements. As of March 31, 2014, the outstanding balance of these securities was ¥1,718.7 billion. Although such non-dilutive preferred securities are perpetual in term, they are redeemable at our option, subject to prior approval from regulatory authorities, on, and on specified dates after, the relevant initial optional redemption date. The following table shows the initial optional redemption dates for the non-dilutive preferred securities included within our Additional Tier 1 capital as of March 31, 2014 and the total outstanding balance of non-dilutive preferred securities with each such initial optional redemption date. The non-dilutive preferred securities are denominated in yen, unless otherwise noted.

Initial optional redemption date	Outstanding balance of non-dilutive preferred  securities included within Additional Tier 1 capital
	(in billions of yen)
June 2014	¥	226.9	(1)
June 2015		452.5
June 2016		461.7	(2)
June 2018		274.5
June 2019		303.0

Notes:

(1) In June 2014, we redeemed all ¥226.9 billion of such non-dilutive preferred securities, denominated in yen (¥139.5 billion) and dollars ($850.0 million).

(2) Denominated in yen (¥400.0 billion) and dollars ($600.0 million).

Our Tier 2 capital as of March 31, 2014 was ¥1,811.2 billion, a decrease of ¥45.8 billion compared to March 31, 2013. The decrease was due mainly to the effect of the phase-out of recognition of eligible Tier 2 capital instruments subject to phase-out arrangements, offset in part by a new issuance of dated subordinated bonds that are Basel III-eligible Tier 2 capital instruments in March 2014.

As a result of the above, total capital as of March 31, 2014 was ¥8,655.9 billion, an increase of ¥311.4 billion compared to March 31, 2013.

Risk-weighted Assets

The following table shows a breakdown of our risk-weighted assets as of March 31, 2013 and 2014:

	As of March 31,				Increase (decrease)
	2013		2014
	(in billions of yen)
Risk-weighted assets:
Credit risk assets	¥	53,590.7	¥	54,082.0	¥	491.3
Market risk equivalent assets		2,379.7		2,919.0		539.2
Operational risk equivalent assets		2,853.0		3,286.3		433.3
Total	¥	58,823.5	¥	60,287.4	¥	1,463.8

Risk-weighted assets as of March 31, 2014 were ¥60,287.4 billion, an increase of ¥1,463.8 billion compared to March 31, 2013. Credit risk assets increased by ¥491.3 billion to ¥54,082.0 billion due mainly to a rise in stock

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prices in Japan, offset in part by an improvement in our loan asset portfolio. Market risk equivalent assets increased by ¥539.2 billion to ¥2,919.0 billion. Operating risk equivalent assets increased by ¥433.3 billion to ¥3,286.3 billion.

Principal Banking Subsidiaries

Capital adequacy ratios of our principal banking subsidiaries, on a consolidated basis, as of March 31, 2013 and 2014, calculated in accordance with Japanese GAAP and guidelines established by the Financial Services Agency, were as set forth in the following table:

	As of March 31,						Increase (decrease)
	2013			2014
Mizuho Bank(1)
Common Equity Tier 1 capital ratio		—	%		10.11	%		—	%
Tier 1 capital ratio		—			12.25			—
Total capital ratio		—			15.36			—
Mizuho Trust & Banking
Common Equity Tier 1 capital ratio		13.24			14.76			1.52
Tier 1 capital ratio		13.24			14.76			1.52
Total capital ratio		17.21			17.80			0.59

Note:

(1) The former Mizuho Bank and the former Mizuho Corporate Bank merged on July 1, 2013 with the former Mizuho Corporate Bank as the surviving entity, which was renamed Mizuho Bank upon the merger.

Capital adequacy ratios of the former Mizuho Corporate Bank and the former Mizuho Bank as of March 31, 2013 were as set forth in the following table:

	As of March 31, 2013
The former Mizuho Corporate Bank(1)
Common Equity Tier 1 capital ratio		8.65	%
Tier 1 capital ratio		11.03
Total capital ratio		13.89
The former Mizuho Bank(2)(3)
Common Equity Tier 1 capital ratio		8.90
Tier 1 capital ratio		10.13
Total capital ratio		14.08

Notes:

(1) The distribution of all of the shares of Mizuho Securities to Mizuho Financial Group as a dividend in kind (¥424.4 billion) on April 1, 2013 was deducted from Common Equity Tier 1 capital.

(2) The ratios were calculated in accordance with Basel III and are included for reference purpose only because the former Mizuho Bank was subject to Basel II requirements as of March 31, 2013 as a financial institution without overseas operations to which only domestic capital adequacy requirements applied.

(3) The distribution of all of the shares of Mizuho Securities to Mizuho Financial Group as a dividend in kind (¥125.7 billion) on April 1, 2013 was deducted from Common Equity Tier 1 capital.

We believe each of our principal banking subsidiaries was in compliance with all capital adequacy requirements to which it was subject as of March 31, 2014.

Our securities subsidiaries in Japan are also subject to the capital adequacy requirement under the Financial Instruments and Exchange Act. Under this requirement, securities firms must maintain a minimum capital adequacy ratio of 120% calculated as a percentage of capital accounts less certain assets, as determined in

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accordance with Japanese GAAP, against amounts equivalent to market, counterparty and basic risks. Specific guidelines are issued as a ministerial ordinance that details the definition of essential components of the capital ratios, including capital, disallowed assets and risks, and related measures. Failure to maintain a minimum capital ratio will trigger mandatory regulatory actions. A capital ratio of less than 140% will call for regulatory reporting and a capital ratio of less than 100% may lead to a temporary suspension of all or part of the business operations and further, to the cancellation of the license to act as a securities broker and dealer. We believe, as of March 31, 2014, that our securities subsidiaries in Japan were in compliance with all capital adequacy requirements to which they were subject.

Off-balance-sheet Arrangements

We engage in various types of off-balance-sheet arrangements in the ordinary course of our business to meet the financing needs of our customers. These arrangements include various guarantees and commitments. The following tables show the contractual or notional amounts of our guarantees and undrawn commitments as of March 31, 2013 and 2014:

	As of March 31,				Increase (decrease)
	2013		2014
	(in billions of yen)
Guarantees:
Performance guarantees	¥	1,750	¥	1,985	¥	235
Guarantees on loans		452		399		(53	)
Guarantees on securities		146		170		24
Other guarantees		1,068		1,249		181
Guarantees for the repayment of trust principal		171		158		(13	)
Liabilities of trust accounts		8,606		11,158		2,552
Derivative financial instruments		23,582		21,422		(2,160	)
	As of March 31,				Increase (decrease)
	2013		2014
	(in billions of yen)
Commitments:
Commitments to extend credit	¥	59,101	¥	59,402	¥	301
Commercial letters of credit		608		611		3
Total commitments	¥	59,709	¥	60,013	¥	304

See note 23 to our consolidated financial statements included elsewhere in this annual report for a description of the nature of the various types of guarantees and commitments.

The contractual or notional amounts of these instruments generally represent the maximum potential amounts of future payments without consideration of possible recoveries under recourse provisions or from collateral held. For example, the amount under commitments to extend credit does not necessarily equal the impact that such commitment will have on our future cash flow, because many of these commitments expire without our making actual credit extensions up to the full commitment amount or at all. Also, many of the agreements related to the commitments to extend credit include terms that allow us to refuse, or reduce the amount of, credit extensions based on changes in the financial environment, declines in the obligor’s credit quality and other reasons. Finally, we receive collateral such as real estate and securities at the time of contract as we deem necessary, and we regularly review the credit quality of the customer based on internal guidelines and revise the terms of the contract as we deem necessary to manage credit risk.

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Some of our off-balance-sheet arrangements are related to activities of special purpose entities, most of which are variable interest entities, including those that do not meet the consolidation requirements under ASC 810, “Consolidation” (“ASC 810”). These off-balance-sheet arrangements include the types of transactions discussed below.

Asset-backed Commercial Paper/Loan Programs

We manage several asset-backed commercial paper/loan programs that provide our clients’ off-balance-sheet and/or cost-effective financing. The variable interest entities used in the programs purchase financial assets, primarily receivables, from clients participating in the programs and provide liquidity through the issuance of commercial paper or borrowings from us backed by the financial assets. While customers normally continue to service the transferred receivables, we underwrite, distribute, and make a market in commercial paper issued by the conduits. We typically provide program-wide liquidity and credit support facilities and, in some instances, financing to the variable interest entities. We have the power to determine which assets will be held in the variable interest entities and have an obligation to monitor these assets. We are also responsible for liability management. In addition, through the liquidity and credit support facilities with the variable interest entities, we have the obligation to absorb losses that could potentially be significant to the variable interest entities. Therefore, we consolidate this type of variable interest entities.

Asset-backed Securitizations

We act as an arranger of various types of structured finance to meet clients’ off-balance-sheet financing needs. In substantially all of these structured financing transactions, the transfer of the financial asset by the client is structured to be bankruptcy remote by use of a bankruptcy remote entity, which is deemed to be a variable interest entity because its equity holder does not have decision making rights. We receive fees for structuring and/or distributing the securities sold to investors. In some cases, we ourselves purchase the securities issued by the entities and/or provide loans to the variable interest entities.

In addition, we establish several single-issue and multi-issue special purpose entities that issue collateralized debt obligations or collateralized loan obligations, synthetic collateralized debt obligations or collateralized loan obligations or other repackaged instruments to meet clients’ and investors’ financial needs. We also arrange securitization transactions including commercial mortgage-backed securities, residential mortgage-backed securities and others. In these transactions, we act as an underwriter, placement agent, asset manager, derivatives counterparty, and/or investor to debt and equity instruments.

In certain variable interest entities, where we provide liquidity and credit support facilities, write credit protection or invest in debt or equity instruments in our role as an arranger, servicer, administrator or asset manager, etc., we have the power to determine which assets will be held in the variable interest entities or to manage and monitor these assets. In addition, through the variable interests above, we have the obligation to absorb losses and the right to receive benefits that could potentially be significant to the variable interest entities. Therefore, we consolidate such variable interest entities.

We established certain variable interest entities to securitize our own mortgage loans. We provide servicing for, hold retained subordinated beneficial interests in, and retain credit exposure in the form of guarantees in the mortgage loans. In our role as a servicer, we have the power to direct the entity’s activities that most significantly impact the entity’s economic performance by managing defaulted mortgage loans. In addition, through the retained interests and the involvement as a guarantor above, we have the obligation to absorb losses and the right to receive benefits that could potentially be significant to the entity. Therefore, we consolidate such variable interest entities.

Investments in Securitization Products

We invest in, among other things, various types of collateralized debt obligations and collateralized loan obligations, synthetic collateralized debt obligations and collateralized loan obligations and repackaged

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instruments, commercial mortgage-backed securities and residential mortgage-backed securities arranged by third parties for the purpose of generating current income or capital appreciation, which all utilize entities that are deemed to be variable interest entities. By design, such investments were investment grade at issuance and held by a diverse group of investors. The potential loss amount of securities and loans is generally limited to the amount invested because we have no contractual involvement in such variable interest entities beyond our investments. Since we are involved in those variable interest entities only as an investor, we do not ordinarily have the power to direct the variable interest entities’ activities that most significantly impact the variable interest entities’ economic performance. However, we consolidate variable interest entities where the transactions are tailored by the third party arrangers to meet our needs as a main investor who is ultimately deemed to have the power to determine which assets to be held in the variable interest entities. We also invest in certain beneficial interests issued by variable interest entities which hold real estate that we utilize. In addition to these variable interests, when we have the power including the sole unilateral ability to liquidate variable interest entities, we consolidate such variable interest entities.

Investment Funds

We invest in various investment funds including securities investment trusts, which collectively invest in equity and debt securities that include listed Japanese securities and investment grade bonds. Investment advisory companies or fund management companies, including our subsidiaries and affiliates, administer and make investment decisions over such investment funds. We consolidate certain investment funds where we are deemed to be the primary beneficiary. We have determined that certain investment vehicles managed by us that have all the attributes of an investment company (or similar entity) qualify for the deferral from certain requirements of ASC 810 that originated from SFAS No.167, “Amendments to FASB Interpretation No.46(R)” (“SFAS No.167”). Therefore, for these vehicles, we determine whether we are the primary beneficiary by evaluating whether we absorb a majority of expected losses, receive a majority of expected residual returns, or both.

Trust Arrangements

We offer a variety of asset management and administration services under trust arrangements including security investment trusts, pension trusts and trusts used in the securitization of assets originated by and transferred to third parties. We receive trust fees for providing services as an agent or fiduciary on behalf of beneficiaries.

With respect to guaranteed principal money trust products, we assume certain risks by providing guarantees for the repayment of principal as required by the trust agreements or relevant Japanese legislation. We manage entrusted funds primarily through the origination of high quality loans and other credit-related products, investing in investment grade marketable securities such as Japanese government bonds and placing cash with our subsidiary trust banks. We have the power to determine which assets will be held in the variable interest entities or to manage these assets. In addition, through the principal guarantee agreement, we have the obligation to absorb losses that could potentially be significant to the variable interest entities. Therefore, we consolidate this type of variable interest entities. However, we do not consolidate certain guaranteed principal money trusts, which invest all the entrusted funds in ourselves, as we have determined that we have no variable interests.

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Significant Unconsolidated Variable interest entities

The tables below summarize our involvement in significant unconsolidated variable interest entities as of March 31, 2013 and 2014:

	Significant unconsolidated variable interest entities
As of March 31, 2013	Total assets		Maximum exposure to loss
	(in billions of yen)
Asset-backed commercial paper/loan programs	¥	—	¥	—
Asset-backed securitizations		463		37
Investments in securitization products		530		206
Investment funds		2,770		302
Trust arrangements and other		—		—
Total	¥	3,763	¥	545

	Significant unconsolidated variable interest entities
As of March 31, 2014	Total assets		Maximum exposure to loss
	(in billions of yen)
Asset-backed commercial paper/loan programs	¥	—	¥	—
Asset-backed securitizations		385		39
Investments in securitization products		531		200
Investment funds		2,935		387
Trust arrangements and other		—		—
Total	¥	3,851	¥	626

Asset-backed commercial paper/loan programs include multi-seller programs managed by us, under which the related variable interest entities purchase various types of assets from our clients, consisting mainly of accounts and notes receivables as well as credit card receivables, auto loans, leases and other receivables. Our involvement with variable interest entities for multi-seller programs is generally more significant than other types of variable interest entities in terms of liquidity support and credit enhancement obligations. All of the variable interest entities for our asset-backed commercial paper/loan programs to which we provided liquidity support or credit enhancements were consolidated variable interest entities as of March 31, 2014.

Other Types of Off-balance-sheet Arrangements

See note 25 to our consolidated financial statements included elsewhere in this annual report for further descriptions of variable interest entities and securitizations.

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Tabular Disclosure of Contractual Obligations

In the normal course of business, we enter into contractual obligations that require future cash payments. The following table sets forth a summary of our contractual cash obligations as of March 31, 2014:

	Due in one year or less		Due from one year to two years		Due from two years to three years		Due from three years to four years		Due from four years to five years		Due after five years		Total
	(in billions of yen)
Time deposits	¥	33,606	¥	1,931	¥	1,254	¥	344	¥	415	¥	134	¥	37,684
Certificates of deposit		12,746		10		—		—		—		—		12,756
Long-term debt		1,222		1,191		1,777		1,025		484		4,155		9,854
Capitalized leases		6		6		5		4		4		2		27
Operating leases		48		40		36		31		29		75		259
Total(1)(2)	¥	47,628	¥	3,178	¥	3,072	¥	1,404	¥	932	¥	4,366	¥	60,580

Notes:

(1) A contribution paid to our pension plans, which is not included in the above table, is expected to be approximately ¥49 billion in the fiscal year ending March 31, 2015, based on the current funded status and expected asset return assumptions. For further information, see note 20 to our consolidated financial statements included elsewhere in this annual report.

(2) The amount of unrecognized tax benefits, which is not included in the above table, was ¥1.7 billion, of which ¥0.7 billion was interest and penalties, at March 31, 2014. For further information, see note 19 to our consolidated financial statements included elsewhere in this annual report.

Recent Accounting Pronouncements

See note 2 to our consolidated financial statements included elsewhere in this annual report.

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Reconciliation with Japanese GAAP

Our consolidated financial statements are prepared in accordance with accounting principles and policies as summarized in note 1 to our consolidated financial statements included elsewhere in this annual report. These principles and policies differ in some respects from Japanese GAAP. Under Japanese banking regulations, we are required to report our annual financial results using financial statements prepared under Japanese GAAP. In addition, pursuant to the requirements of the Tokyo Stock Exchange, we prepare quarterly financial statements which are also under Japanese GAAP. To show the major reconciling items between our U.S. GAAP financial statements and our Japanese GAAP financial statements, we have provided below, with respect to our most recent fiscal year, a reconciliation of consolidated net income and shareholders’ equity under U.S. GAAP with those amounts under Japanese GAAP.

	As of and for the fiscal year ended March 31, 2014
	Total MHFG shareholders’ equity			Net income attributable to MHFG shareholders
	(in billions of yen)
U.S. GAAP	¥	6,378.4		¥	498.5
Differences arising from different accounting for:
1.  Derivative financial instruments and hedging activities		57.7			170.3
2.  Investments		(40.8	)		4.8
3.  Loans		161.0			12.0
4.  Allowances for loan losses and off-balance-sheet instruments		70.5			(24.8	)
5.  Premises and equipment		(31.4	)		7.1
6.  Real estate sales and leasebacks		4.0			(6.6	)
7.  Land revaluation		177.5			(4.5	)
8.  Business combinations		12.3			(13.9	)
9.  Pension liabilities		(9.8	)		(15.6	)
10. Consolidation of variable interest entities		(1.7	)		(7.1	)
11. Deferred taxes		(354.3	)		11.2
12. Other		37.0			57.0
Japanese GAAP	¥	6,460.4		¥	688.4

The following is a summary of the significant adjustments made to consolidated shareholders’ equity and net income, as shown in the above table, to reconcile the U.S. GAAP results with the Japanese GAAP results. The paragraphs below refer to the corresponding items set forth in the table above.

1.    Derivative financial instruments and hedging activities

Under U.S. GAAP, for a derivative to qualify for hedge accounting, it must be highly effective in achieving offsetting changes in fair values or variable cash flows of the hedged items attributable to the particular risk being hedged. The hedging relationship must be designated and formally documented at inception. Such documentation must include the particular risk management objective and strategy for the hedge, the identification of the derivative used as the hedging instrument, the hedged item and the risk exposure being hedged and the method for assessing the hedge effectiveness. The criteria for designation and measurement of hedge effectiveness under U.S. GAAP are more rigorous than under Japanese GAAP. As a result, most of the eligible hedge derivatives under Japanese GAAP are accounted for as trading account assets or liabilities under U.S. GAAP with changes in fair value of the derivatives recognized in earnings.

Requirements for bifurcation of embedded derivatives differ between Japanese GAAP and U.S. GAAP. Embedded derivatives that are deemed to be clearly and closely related to their host contracts are not bifurcated under U.S. GAAP, while Japanese GAAP allows an entity to bifurcate embedded derivatives if the entity

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manages the risk of the embedded derivatives and host contracts separately. Bifurcated derivatives are recorded on the balance sheet at fair value with changes in fair value recognized in earnings under both Japanese GAAP and U.S. GAAP.

2.    Investments

The cost basis of certain investments differs between Japanese GAAP and U.S. GAAP primarily due to the following reasons:

Certain sales and subsequent repurchases of available-for-sale securities under Japanese GAAP do not meet sales criteria under U.S. GAAP. These sales and subsequent repurchases resulted in realized gains or losses being recognized in earnings under Japanese GAAP. Under U.S. GAAP, these gains or losses are recognized as unrealized gains or losses within accumulated other comprehensive income, net of tax.

Under U.S. GAAP, declines in the fair value of available-for-sale securities below cost that are deemed to be “other-than-temporary” are recorded in earnings. Both quantitative and qualitative factors are considered to determine whether the impairment is “other-than-temporary,” including the duration and extent of the decline, near-term prospects of the issuer, as well as our ability and intent to hold the investments until a forecasted recovery of fair value or maturity. Regarding debt securities, we consider additional factors such as whether we have the intent to sell or more likely than not will be required to sell before recovery to determine whether the impairment is “other-than-temporary.” Under Japanese GAAP, significant declines in the fair value of securities below cost that are deemed to be “other-than-temporary” are recorded in earnings unless short term recovery is reasonably expected. A decline in the fair value of a security of 50% or more of its cost is a strong indicator of an other-than-temporary decline, which requires compelling evidence to prove otherwise. A decline in the fair value of 30% or more but less than 50% of its cost is an indicator of an other-than-temporary decline in which case the probability of recovery must be evaluated to determine whether an other-than-temporary decline has occurred. Generally, if the decline in the fair value is less than 30%, it is not considered to be an other-than-temporary decline.

Under U.S. GAAP, the election of the fair value option for financial assets and liabilities is permitted according to ASC 825, while it is not permitted under Japanese GAAP. As we elected the fair value option for foreign currency denominated available-for-sale securities under U.S. GAAP, these securities were reclassified as trading securities and the entire amount of changes in their fair values are recognized in earnings, while under Japanese GAAP, only the changes attributable to movements in foreign currency exchange rates are recognized in earnings.

Reconciliation amounts for investments in the above table are presented net of taxes.

3.    Loans

Under U.S. GAAP, loan origination fees, net of certain direct origination costs, are deferred and recognized in interest income over the contractual life of the relevant loan using the interest method, while certain fees and costs are recognized in earnings at the time the loan is originated under Japanese GAAP.

In addition, certain loan participations and sales of loans to special purpose vehicles in connection with asset securitization transactions under Japanese GAAP do not meet sales criteria under U.S. GAAP due to different applicable criteria, and therefore the relevant loans are recognized on the balance sheet under U.S. GAAP.

4.    Allowances for loan losses and off-balance-sheet instruments

Under both Japanese GAAP and U.S. GAAP, the allowance for loan losses for specifically identified impaired loans is based on the present value of expected future cash flows discounted at the loan’s initial effective interest rate or, as a practical expedient, the loan’s observable market price or the fair value of the

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collateral if the loan is collateral dependent. For certain impaired loans that are aggregated for the purpose of measuring impairment, pools of smaller balance homogeneous loans and other non-homogeneous loans that have not been identified as impaired, the allowance for loan losses is determined based on a formula allowance utilizing historical loss factors, as adjusted, considering recent trends.

The differences between Japanese GAAP and U.S. GAAP arise from the difference in the scope of the loans that are subject to the individual and portfolio impairment analysis. In addition to these effects based on differences between Japanese GAAP and U.S. GAAP, provision (credit) for loan losses may differ between Japanese GAAP and U.S. GAAP due to the difference in the timing of accounting closings between our consolidated financial statements under U.S. GAAP and those under Japanese GAAP.

This reconciling item also includes the differences between U.S. GAAP and Japanese GAAP relating to the allowance for off-balance-sheet instruments. We generally use the same methodology to reserve for losses on these instruments as we do for loans.

5.    Premises and equipment

Under U.S. GAAP, the fair value of a non-monetary asset acquired in exchange for another non-monetary asset is generally deemed to be the new cost of the asset acquired in the exchange, and a gain or loss is recognized on the exchange. Under Japanese GAAP, the cost of the asset surrendered is assigned to the newly acquired asset in certain types of exchange transactions, resulting in no gains or losses. In addition, the difference in carrying value of assets acquired in a non-monetary exchange results in a difference in the depreciation schedule between U.S. GAAP and Japanese GAAP.

6.    Real estate sales and leasebacks

Our principal banking subsidiaries entered into sale and leaseback transactions in prior years with respect to land and buildings used as their headquarters. Each sale of such real estate is accounted for as a sale under Japanese GAAP with profits on the sale recorded in earnings. Under U.S. GAAP, the profits are deferred and amortized within the respective lease periods as the subsidiaries continue to occupy the buildings under operating leases.

7.    Land revaluation

Under Japanese GAAP, we revalued our holdings of land during the fiscal year ended March 31, 1998 pursuant to the Act Concerning Revaluation of Land (Act No. 34 of 1998). The revaluation gains are recorded directly in equity, and the related deferred tax liabilities are also recognized. Under U.S. GAAP, there is no applicable provision that allows for the revaluation of land other than for impairments, and accordingly the revaluation gains are reversed.

8.    Business combinations

Under U.S. GAAP, goodwill is not amortized and an impairment loss is recorded to the extent the carrying amount of the goodwill exceeds its estimated fair value at the measurement date. Under Japanese GAAP, goodwill is amortized over an appropriate period not to exceed 20 years and an impairment loss is recorded only if the effects of the goodwill are no longer expected.

Under Japanese GAAP, goodwill is recognized on a step-by-step basis, with the purchase of additional ownership interests in a subsidiary being accounted for in accordance with the requirements of business combination accounting. Under U.S. GAAP, a change in the parent’s ownership interest in a subsidiary where the parent retains a controlling financial interest in the subsidiary is accounted for as an equity transaction.

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9.    Pension liabilities

Under Japanese GAAP, we adopted as of April 1, 2000 pension accounting that is based on the actuarial present value of accrued benefit obligations. The cumulative effect of the accounting change was amortized over a specified number of years, and actuarial gains and losses are amortized over a specified number of years. Under U.S. GAAP, we recalculated the benefit obligation at April 1, 2004 and accounted for the obligation as if we had adopted the accounting method in accordance with ASC 715, “Compensation—Retirement Benefits,” beginning in the fiscal year ended March 31, 1990, as permitted for a foreign private issuer. The cumulative effect of the accounting change, as well as actuarial gains and losses since the adoption, had been fully amortized by April 1, 2004.

Under both Japanese GAAP and U.S. GAAP, an employer is required to recognize the overfunded or underfunded status of a defined benefit plan as an asset or liability in its consolidated balance sheets. Actuarial gains or losses and prior service costs or benefits that have not yet been recognized through earnings as net periodic benefit cost are recognized in other comprehensive income, net of tax, until they are amortized as a component of net periodic benefit cost. They are amortized based on corridor approach according to ASC715 under U.S. GAAP, while they are amortized over a specified number of years under Japanese GAAP. Due mainly to the differences in the balances of actuarial gains or losses and prior service costs or benefits and in amortization methods, there are differences in the amounts of shareholders’ equity and net income between U.S. GAAP and Japanese GAAP. See note 20 to our consolidated financial statements included elsewhere in this annual report for further discussion.

10.    Consolidation of variable interest entities

Under U.S. GAAP, variable interest entities are to be consolidated if we are deemed to be the primary beneficiary of the variable interest entity. Under Japanese GAAP, consolidation is not based on variable interests. We consolidate certain variable interest entities, such as entities related to asset-backed securitizations, investments in securitization products and investment funds. See note 25 to our consolidated financial statements included elsewhere in this annual report for further discussion.

11.    Deferred taxes

Under U.S. GAAP, all available evidence, both positive and negative, must be considered to determine whether, based on the weight of that evidence, deferred tax assets are realizable or whether a valuation allowance is needed. Possible sources of taxable income, which are considered to determine whether deferred tax assets are realizable, include unrealized gains on available-for-sale securities. The sources also include tax planning strategies that are prudent and feasible. Under Japanese GAAP, the assessment as to whether deferred tax assets are realizable is primarily based on estimates of future taxable income.

Additionally, differences in the carrying amount of assets and liabilities between U.S. GAAP and Japanese GAAP create temporary differences that result in differences in deferred tax assets and liabilities.

12.    Other

This adjustment reflects the effects of miscellaneous items including the effects of foreign exchange rate fluctuations.

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ITEM 6. DIRECTORS, SENIOR MANAGEMENT AND EMPLOYEES

6.A. Directors and Senior Management

Directors and Corporate Auditors

The following table provides information regarding our directors as of June 30, 2014:

Name (date of birth)	Current positions and principal outside positions	Business experience		Expiration of current term as director
Yasuhiro Sato (Apr. 15, 1952)	Director President & Group CEO (Representative Executive Officer) Director of Mizuho Bank, Ltd. Director of Mizuho Trust & Banking Co., Ltd. Director of Mizuho Securities Co., Ltd.	Mar. 2003	Executive Officer / Senior Corporate Officer of International Banking Unit of the former Mizuho Corporate Bank, Ltd.	June 2015
		Apr. 2004	Managing Executive Officer
		Mar. 2006	Managing Director / Head of Corporate Banking Unit
		Apr. 2007	Deputy President / Chief Auditor
		Apr. 2009	President & CEO (until July 2013)
		June 2009	Director of Mizuho Financial Group, Inc.
		June 2011	Director of the former Mizuho Bank, Ltd.
			President & Group CEO of Mizuho Financial Group, Inc. (current)
		July 2013	President & CEO of Mizuho Bank, Ltd.
		Apr. 2014	Director (current)
			Director of Mizuho Trust & Banking Co., Ltd. (current)
			Director of Mizuho Securities Co., Ltd. (current)
Yasunori Tsujita (June 28, 1956)	Director Deputy President & Executive Officer (Representative Executive Officer) Head of Internal Control (Risk Management, Human Resources and Compliance)	Apr. 2009	Executive Officer / General Manager of Personal Marketing Division of the former Mizuho Bank, Ltd.	June 2015
		Apr. 2011	Managing Executive Officer / General Manager of Personal Marketing Division
		June 2011	Managing Executive Officer

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Name (date of birth)	Current positions and principal outside positions	Business experience		Expiration of current term as director
	Head of Compliance Group (Group COO) Deputy President of Mizuho Bank, Ltd.	Apr. 2012	Managing Executive Officer / In charge of Strategic Planning Group of Mizuho Financial Group, Inc.
			Managing Executive Officer / In charge of Strategic Planning Group of the former Mizuho Bank, Ltd.
			Managing Executive Officer / In charge of Strategic Planning Group of the former Mizuho Corporate Bank, Ltd.
		Apr. 2013	Deputy President & Executive Officer / Head of Human Resources Group and Head of Internal Audit Group of Mizuho Financial Group, Inc.
			Deputy President & Executive Officer / Head of Human Resources Group of the former Mizuho Bank, Ltd. (until July 2013)
			Deputy President & Executive Officer / Head of Human Resources Group of the former Mizuho Corporate Bank, Ltd. (until July 2013)
			Managing Executive Officer / In charge of Human Resources Group of Mizuho Trust & Banking Co., Ltd. (until Apr. 2014)
			Managing Executive Officer / In charge of Human Resources Group of Mizuho Securities Co., Ltd. (until Apr. 2014)
		June 2013	Deputy President / Head of Human Resources Group and Head of Internal Audit Group of Mizuho Financial Group, Inc. (until Apr. 2014)
		July 2013	Deputy President & Executive Officer / Head of Human Resources Group of Mizuho Bank, Ltd.

118

Name (date of birth)	Current positions and principal outside positions	Business experience		Expiration of current term as director
		Sep. 2013	Deputy President & Executive Officer / Head of Human Resources Group and Head of Compliance Group
		Nov. 2013	Deputy President / Head of Human Resources Group and Head of Compliance Group
		Apr. 2014	Deputy President / Head of Internal Control (Risk Management, Human Resources and Compliance) and Head of Compliance Group of Mizuho Financial Group, Inc.
			Deputy President / Head of Compliance Group of Mizuho Bank, Ltd. (current)
		June 2014	Director, Deputy President & Executive Officer / Head of Internal Control (Risk Management, Human Resources and Compliance) and Head of Compliance Group of Mizuho Financial Group, Inc. (current)
Ryusuke Aya (May 20, 1960)	Director Managing Executive Officer	Nov. 2007	Joint General Manager of Sydney Branch of the former Mizuho Corporate Bank, Ltd.	June 2015
	Head of Risk Management Group (Group CRO)	Apr. 2010	General Manager of Risk Management Division
	Managing Director of Mizuho Bank, Ltd.	Apr. 2012	Executive Officer / General Manager of Risk Management Division of Mizuho Financial Group, Inc. (until Nov. 2013)
			Executive Officer / General Manager of Risk Management Division of the former Mizuho Bank, Ltd.
			Executive Officer / General Manager of Risk Management Division of the former Mizuho Corporate Bank, Ltd.
		July 2013	Executive Officer / General Manager of Risk Management Division of Mizuho Bank, Ltd.

119

Name (date of birth)	Current positions and principal outside positions	Business experience		Expiration of current term as director
		Nov. 2013	Managing Executive Officer / Head of Risk Management Group of Mizuho Financial Group, Inc. (until June 2014)
			Managing Executive Officer / Head of Risk Management Group of Mizuho Bank, Ltd.
			Managing Executive Officer / In charge of Risk Management Group of Mizuho Trust & Banking Co., Ltd.
			Managing Executive Officer / In charge of Risk Management Group of Mizuho Securities Co., Ltd.
		Apr. 2014	Managing Director / Head of Risk Management Group of Mizuho Bank, Ltd. (current)
		June 2014	Director, Managing Executive Officer / Head of Risk Management Group of Mizuho Financial Group, Inc. (current)
Junichi Shinbo (May 21, 1961)	Director Managing Executive Officer Head of Financial Control & Accounting Group (Group CFO) Managing Director of Mizuho Bank, Ltd. President & CEO of Mizuho Financial Strategy Co., Ltd.	Apr. 2009	General Manager of Global Alternative Investment Division of the former Mizuho Corporate Bank, Ltd.	June 2015
		Apr. 2010	General Manager of Asset Management Coordination Division of the former Mizuho Corporate Bank, Ltd.
		Apr. 2012	Executive Officer / General Manager of Portfolio Management Division of Mizuho Financial Group, Inc. (until Apr. 2014)
			Executive Officer / General Manager of Portfolio Management Division of the former Mizuho Bank, Ltd.
			Executive Officer / General Manager of Portfolio Management Division of the former Mizuho Corporate Bank, Ltd.

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Name (date of birth)	Current positions and principal outside positions	Business experience		Expiration of current term as director
		July 2013	Executive Officer / General Manager of Portfolio Management Division of Mizuho Bank, Ltd.
		Apr. 2014	Managing Executive Officer / Head of Financial Control & Accounting Group of Mizuho Financial Group, Inc.
			Managing Director / Head of Financial Control & Accounting Group of Mizuho Bank, Ltd. (current)
			President & CEO of Mizuho Financial Strategy Co., Ltd. (current)
		June 2014	Director, Managing Executive Officer / Head of Financial Control & Accounting Group of Mizuho Financial Group, Inc. (current)
Koji Fujiwara (June 29, 1961)	Director Managing Executive Officer Head of Strategic Planning Group (Group CSO) Managing Director of Mizuho Bank, Ltd.	Oct. 2007	Senior Manager of Corporate Planning Division of the former Mizuho Bank, Ltd. (General Manager of Office of Chairman, Japanese Bankers Association)	June 2015
		July 2009	Senior Manager of Investor Relations Division of Mizuho Financial Group, Inc.
		Apr. 2010	General Manager of Investor Relations Division
		Apr. 2012	Executive Officer / General Manager of Investor Relations Division
		Apr. 2014	Managing Executive Officer / Head of Strategic Planning Group
			Managing Director / Head of Strategic Planning Group of Mizuho Bank, Ltd. (current)
		June 2014	Director, Managing Executive Officer / Head of Strategic Group of Mizuho Financial Group, Inc. (current)

121

Name (date of birth)	Current positions and principal outside positions	Business experience		Expiration of current term as director
Hideyuki Takahashi (Apr. 20, 1957)	Director Director of Mizuho Bank, Ltd.	Apr. 2007	Executive Officer / Senior Corporate Officer of Strategic Planning Group of the former Mizuho Corporate Bank, Ltd.	June 2015
		Apr. 2009	Managing Executive Officer / Head of Global Portfolio Management Unit, Head of Financial Institutions & Public Sector Business Unit, Head of Global Alternative Investment Unit
		Apr. 2010	Managing Executive Officer / Chief Financial Officer and Chief Portfolio Management Officer
		Apr. 2011	Managing Executive Officer / Chief Financial Officer, Chief Portfolio Management Officer and Chief Information Officer
		Apr. 2012	Managing Executive Officer / Head of Financial Control & Accounting Group of Mizuho Financial Group, Inc.
			Managing Executive Officer / Head of Financial Control & Accounting Group of the former Mizuho Bank, Ltd. (until Apr. 2013)
			Managing Executive Officer / Head of Financial Control & Accounting Group of the former Mizuho Corporate Bank, Ltd. (until Apr. 2013)
			Managing Executive Officer / In charge of Strategic Planning, Financial Control & Accounting Group of Mizuho Trust & Banking Co., Ltd. (until Apr. 2014)
			President & CEO of Mizuho Financial Strategy Co., Ltd. (until Apr. 2014)
		June 2012	Managing Director / Head of Financial Control & Accounting Group of Mizuho Financial Group, Inc.

122

Name (date of birth)	Current positions and principal outside positions	Business experience		Expiration of current term as director
		Apr. 2013	Deputy President / Head of Financial Control & Accounting Group (until Apr. 2014)
			Deputy President & Executive Officer / Head of Financial Control & Accounting Group of the former Mizuho Bank, Ltd.
			Deputy President & Executive Officer / Head of Financial Control & Accounting Group of the former Mizuho Corporate Bank, Ltd.
			Managing Executive Officer / In charge of Financial Control & Accounting Group of Mizuho Securities Co., Ltd. (until Apr. 2014)
		July 2013	Deputy President & Executive Officer / Head of Financial Control & Accounting Group of Mizuho Bank, Ltd.
		Apr. 2014	Director of Mizuho Financial Group, Inc. (current)
		June 2014	Director of Mizuho Bank, Ltd. (current)
Nobukatsu Funaki (Mar. 30, 1959)	Director	Apr. 2005	General Manager of Accounting Division of the former Mizuho Corporate Bank, Ltd.	June 2015
		Mar. 2010	Corporate Auditor (until June 2013)
		Apr. 2013	Corporate Auditor of Mizuho Securities Co., Ltd. (until June 2014)
		June 2013	Corporate Auditor of Mizuho Financial Group, Inc.
		June 2014	Director of Mizuho Financial Group, Inc. (current)
Akihiko Nomiyama(1)(2) (June 15, 1934)	Director Honorary Executive Consultant of JX Holdings, Inc.	Apr. 1957	Joined Nippon Mining Co., Ltd.	June 2015
		June 1984	Director
		June 1989	Managing Director

123

Name (date of birth)	Current positions and principal outside positions	Business experience		Expiration of current term as director
		Dec. 1992	Managing Director of Nikko Kyodo Co., Ltd.
		Dec. 1993	Managing Director of Japan Energy Corporation
		June 1994	Senior Managing Director
		June 1996	President and CEO (Representative Director)
		June 2000	Chairman, President and CEO (Representative Director)
		Apr. 2002	Chairman and CEO (Representative Director)
		Sep. 2002	President and CEO (Representative Director) of NIPPON MINING HOLDINGS, INC.
		June 2003	Chairman (Representative Director)
		June 2006	Special Advisor (until June 2010)
		June 2007	Director of Mizuho Financial Group, Inc. (current)
		July 2010	Honorary Executive Consultant of JX Holdings, Inc. (current)
Mitsuo Ohashi(1) (Jan. 18, 1936)	Director Senior Counselor of Showa Denko K.K. Outside Director of Chugai Pharmaceutical Co., Ltd. External Statutory Auditor of Fukoku Mutual Life Insurance Company	Mar. 1959	Joined Mitsui Bank, Ltd.	June 2015
		Dec. 1961	Joined Showa Denko K.K.
		May 1988	General Manager of Corporate Planning Division
		Mar. 1989	Director / General Manager of Corporate Planning Division
		Mar. 1993	Managing Director
		Mar. 1995	Senior Managing Director
		Mar. 1997	President and Chief Executive Officer
		Jan. 2005	Representative Director and Chairman of the Board of Directors
		June 2005	Director of Mizuho Financial Group, Inc. (current)

124

Name (date of birth)	Current positions and principal outside positions	Business experience		Expiration of current term as director
		Mar. 2007	Director and Chairman of the Board of Directors of Showa Denko K.K.
		Mar. 2010	Senior Advisor
		Mar. 2014	Senior Counselor (current)
Takashi Kawamura(1)(2) (Dec. 19, 1939)	Director Advisor of Hitachi, Ltd.	Apr. 1962	Joined Hitachi, Ltd.	June 2015
		June 1995	Director
		June 1997	Executive Managing Director
		Apr. 1999	Executive Vice President and Representative Director
		Apr. 2003	Director (until June 2007)
		June 2003	Chairman of the Board and Representative Executive Officer, Hitachi Software Engineering Co., Ltd.
		June 2005	Chairman of the Board, Hitachi Plant Engineering & Construction Co., Ltd. (until June 2009)
		June 2006	Chairman of the Board, Hitachi Software Engineering Co., Ltd. (until June 2007)
		June 2007	Chairman of the Board, Hitachi Maxell, Ltd. (until June 2009)
		Apr. 2009	Representative Executive Officer, Chairman, President and Chief Executive Officer, Hitachi, Ltd.
		June 2009	Representative Executive Officer, Chairman, President and Chief Executive Officer and Director
		Apr. 2010	Representative Executive Officer, Chairman and Director
		Apr. 2011	Chairman of the Board
		Apr. 2014	Director
		June 2014	Advisor (current)
			Director of Mizuho Financial Group, Inc. (current)

125

Name (date of birth)	Current positions and principal outside positions	Business experience		Expiration of current term as director
Tatsuo Kainaka(1)(2) (Jan. 2, 1940)	Director Attorney-at-law at Takusyou Sogo Law Office President of the Life Insurance Policyholders Protection Corporation of Japan External Director of Japan Airlines Co., Ltd. Corporate Auditor (External) of Oriental Land Co., Ltd.	Apr. 1966	Appointed as Public Prosecutor	June 2015
		Jan. 2002	Superintending Prosecutor of the Tokyo High Public Prosecutors Office
		Oct. 2002	Justice of the Supreme Court
		Mar. 2010	Admitted to the Tokyo Bar Association
		Apr. 2010	Joined Takusyou Sogo Law Office (current)
		Jan. 2011	President of the Life Insurance Policyholders Protection Corporation of Japan (current)
		Nov. 2013	Director of Mizuho Bank, Ltd. (until June 2014)
		June 2014	Director of Mizuho Financial Group, Inc. (current)
Kanemitsu Anraku(1)(2) (Apr. 21, 1941)	Director Outside Director of Sony Corporation	Apr. 1964	Joined Nissan Motor Co., Ltd.	June 2015
		June 1993	Director
		June 1997	Managing Director
		May 1999	Executive Vice President (Representative Director)
		Apr. 2000	Vice Chairman (Member of the Board of Directors)
		June 2000	Vice Chairman
		Apr. 2002	President (Representative Director) of Nissan Real Estate Development Corporation
		June 2005	Counselor
		July 2006	Counselor of Nissan Network Holdings Co., Ltd.
		June 2007	Director of Mizuho Financial Group, Inc. (current)
Hiroko Ota(1)(2) (Feb. 2, 1954)	Director Professor of National Graduate Institute for Policy Studies	Apr. 1996	Associate Professor, the Graduate School of Policy Science, Saitama University	June 2015
		Oct. 1997	Associate Professor, National Graduate Institute for Policy Studies

126

Name (date of birth)	Current positions and principal outside positions	Business experience		Expiration of current term as director
	Outside Director of JX Holdings, Inc. Outside Director of Panasonic Corporation	Apr. 2001	Professor, National Graduate Institute for Policy Studies
		Apr. 2002	Director for Economic Research, Cabinet Office
		Mar. 2003	Deputy Director General for Economic Research, Cabinet Office
		Apr. 2004	Director General for Economic Research, Cabinet Office
		Aug. 2005	Professor, National Graduate Institute for Policy Studies
		Sep. 2006	Minister of State for Economic and Fiscal Policy
		Aug. 2008	Professor, National Graduate Institute for Policy Studies (current)
		Apr. 2009	Vice-President, National Graduate Institute for Policy Studies (until Mar. 2011)
		June 2014	Director of Mizuho Financial Group, Inc. (current)

Notes:

(1) Mr. Nomiyama, Mr. Ohashi, Mr. Kawamura, Mr. Kainaka, Mr. Anraku and Ms. Ota satisfy the requirements for an “outside director” under the Companies Act.

(2) Mr. Nomiyama, Mr. Kawamura, Mr. Kainaka, Mr. Anraku and Ms. Ota are “independent directors” defined by the Tokyo Stock Exchange, Inc.

(3) The designation of the Chairman and the Deputy Chairman of the Board of Directors, and the designation of committee members and the Chairman of each committee are as follows:

Chairman of the Board of Directors: Hiroko Ota

Deputy Chairman of the Board of Directors: Hideyuki Takahashi

Nominating Committee members:

Mitsuo Ohashi (Chairman), Takashi Kawamura, Tatsuo Kainaka and Hiroko Ota

Compensation Committee members:

Tatsuo Kainaka (Chairman), Akihiko Nomiyama, Takashi Kawamura and Kanemitsu Anraku

Audit Committee members:

Hideyuki Takahashi (Chairman), Akihiko Nomiyama, Tatsuo Kainaka, Kanemitsu Anraku and Nobukatsu Funaki

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Executive Officers

The following table provides information regarding our executive officers as of June 30, 2014:

Name (date of birth)	Current positions and principal outside positions	Business experience		Expiration of current term as executive officer
Yasuhiro Sato (Apr. 15, 1952)	See “Directors” under this Item 6.A.	See “Directors” under this Item 6.A.		June 2015
Yasunori Tsujita (June 28, 1956)	See “Directors” under this Item 6.A.	See “Directors” under this Item 6.A.		June 2015
Toshitsugu Okabe (May 2, 1956)	Deputy President & Executive Officer Head of Strategic Planning and Management Control (Personal Banking, Retail Banking and Corporate Banking)	Apr. 2008	Executive Officer / General Manager of Executive Secretariat of Mizuho Financial Group, Inc.	June 2015
		Apr. 2009	Managing Executive Officer of the former Mizuho Bank, Ltd.
		Apr. 2012	Managing Executive Officer / Head of Retail Banking Unit
			Managing Executive Officer (not full-time) / In charge of coordination with Retail Banking Unit of the former Mizuho Bank, Ltd. of the former Mizuho Corporate Bank, Ltd.
		Apr. 2013	Deputy President & Executive Officer / Deputy President (Personal Banking Unit and Retail Banking Unit) of Mizuho Financial Group, Inc.
			Deputy President / Deputy President (Personal Banking Unit and Retail Banking Unit) and Head of Internal Audit Group of the former Mizuho Bank, Ltd. (until July 2013)
			Deputy President & Executive Officer / Deputy President (In charge of coordination with Personal Banking Unit and Retail Banking Unit of the former Mizuho Bank, Ltd.) and Head of Internal Audit Group of the former Mizuho Corporate Bank, Ltd. (until July 2013)

128

Name (date of birth)	Current positions and principal outside positions	Business experience		Expiration of current term as executive officer
		June 2013	Deputy President / Deputy President (Personal Banking Unit and Retail Banking Unit) of Mizuho Financial Group, Inc. (until Sep. 2013)
		July 2013	Deputy President / Deputy President (Personal Banking Unit and Retail Banking Unit) and Head of Internal Audit Group of Mizuho Bank, Ltd. (until Apr. 2014)
		Sep. 2013	Deputy President / Deputy President (Personal Banking Unit and Retail Banking Unit) and Head of Compliance Group of Mizuho Financial Group, Inc. (until Apr. 2014)
		Nov. 2013	Managing Executive Officer / In charge of Compliance Group of Mizuho Trust & Banking Co., Ltd.
			Managing Executive Officer / In charge of Compliance Group of Mizuho Securities Co., Ltd.
		Apr. 2014	Deputy President / Deputy President (Head of Strategic Planning and Management Control (Personal Banking, Retail Banking and Corporate Banking))
		June 2014	Deputy President & Executive Officer / Head of Strategic Planning and Management Control (Personal Banking, Retail Banking and Corporate Banking)) (current)
Daisaku Abe (June 20, 1957)	Deputy President & Executive Officer Head of IT & Systems Group (Group CIO) Head of Operations Group (Group COO) Deputy President & Executive Officer of Mizuho Bank, Ltd.	Apr. 2007	Executive Officer / General Manager of Executive Secretariat of the former Mizuho Corporate Bank, Ltd.	June 2015
		Apr. 2009	Managing Executive Officer / Head of Strategic Planning Group, Head of IT, Systems & Operations Group and General Manager of Group Strategic Planning of Mizuho Financial Group, Inc.

129

Name (date of birth)	Current positions and principal outside positions	Business experience		Expiration of current term as executive officer
		Apr. 2011	Managing Executive Officer / Head of Strategic Planning Group and Head of IT, Systems & Operations Group
		Apr. 2012	Managing Executive Officer / Head of IT & Systems Group and Head of Operations Group
			Managing Executive Officer / Head of IT & Systems Group and Head of Operations Group of the former Mizuho Bank, Ltd. (until Apr. 2013)
			Managing Executive Officer / Head of IT & Systems Group and Head of Operations Group of the former Mizuho Corporate Bank, Ltd. (until Apr. 2013)
			Managing Executive Officer / In charge of IT & Systems Group and Operations Group of Mizuho Trust & Banking Co., Ltd. (until Apr. 2014)
		June 2012	Managing Director / Head of IT & Systems Group and Head of Operations Group of Mizuho Financial Group, Inc.
		Apr. 2013	Deputy President / Head of IT & Systems Group and Head of Operations Group (until June 2014) Deputy President & Executive Officer / Head of IT & Systems Group and Head of Operations Group of the former Mizuho Bank, Ltd. Deputy President & Executive Officer / Head of IT & Systems Group and Head of Operations Group of the former Mizuho Corporate Bank, Ltd. Managing Executive Officer / In charge of IT & Systems Group and Operations Group of Mizuho Securities Co., Ltd. (until Apr. 2014)

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Name (date of birth)	Current positions and principal outside positions	Business experience		Expiration of current term as executive officer
		July 2013	Deputy President & Executive Officer / Head of IT & Systems Group and Head of Operations Group of Mizuho Bank, Ltd. (current)
		June 2014	Deputy President & Executive Officer / Head of IT & Systems Group and Head of Operations Group of Mizuho Financial Group, Inc. (current)
Tadashi Kanki (Oct. 9, 1958)	Senior Managing Executive Officer Head of Internal Audit Group (Group CA)	Apr. 2008	Executive Officer / General Manager of Corporate Banking Division No.8 of the former Mizuho Corporate Bank, Ltd.	June 2015
		Apr. 2011	Managing Executive Officer (until Apr. 2013)
		Apr. 2012	Managing Executive Officer of the former Mizuho Bank, Ltd.
		Apr. 2013	Managing Executive Officer / Head of Strategic Planning Group of Mizuho Financial Group, Inc. Managing Executive Officer / Head of Strategic Planning Group of the former Mizuho Bank, Ltd. (until July 2013) Managing Executive Officer / Head of Strategic Planning Group of the former Mizuho Corporate Bank, Ltd. (until July 2013) Managing Executive Officer / In charge of Strategic Planning, Financial Control & Accounting Group of Mizuho Trust & Banking Co., Ltd. (until Apr. 2014) Managing Executive Officer / In charge of Strategic Planning Group of Mizuho Securities Co., Ltd. (until Apr. 2014)
		June 2013	Managing Director / Head of Strategic Planning Group of Mizuho Financial Group, Inc. (until Apr. 2014)

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Name (date of birth)	Current positions and principal outside positions	Business experience		Expiration of current term as executive officer
		July 2013	Managing Executive Officer / Head of Strategic Planning Group of Mizuho Bank, Ltd. (current)
		Apr. 2014	Senior Managing Director / Head of Internal Audit Group of Mizuho Financial Group, Inc.
		June 2014	Senior Managing Executive Officer / Head of Internal Audit Group (current)
Akira Sugano (July 25, 1959)	Senior Managing Executive Officer Head of Strategic Planning and Management Control (International Banking, Investment Banking and Asset Management)	Apr. 2009	Executive Officer / General Manager of International Coordination Division of the former Mizuho Corporate Bank, Ltd.	June 2015
		Apr. 2012	Managing Executive Officer / Head of Investment Banking Unit, Head of Asset Management Unit and In charge of Business Collaboration Division (Securities & Trust Services) of the former Mizuho Bank, Ltd.
			Managing Executive Officer / Head of Investment Banking Unit, Head of Asset Management Unit and In charge of Business Collaboration Division (Securities & Trust Services) of the former Mizuho Corporate Bank, Ltd.
		Apr. 2013	Managing Executive Officer / Head of International Banking Unit and Head of Asset Management Unit of Mizuho Financial Group, Inc. (until Apr. 2014)
			Managing Executive Officer / Head of Asset Management Unit and In charge of coordination with International Banking Unit of the former Mizuho Corporate Bank, Ltd. of the former Mizuho Bank, Ltd.
			Managing Executive Officer / Head of International Banking Unit and Head of Asset Management Unit of the former Mizuho Corporate Bank, Ltd.

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Name (date of birth)	Current positions and principal outside positions	Business experience		Expiration of current term as executive officer
		July 2013	Managing Executive Officer / Head of International Banking Unit and Head of Asset Management Unit of Mizuho Bank, Ltd.
		Apr. 2014	Senior Managing Executive Officer / Head of Strategic Planning and Management Control (International Banking, Investment Banking and Asset Management) of Mizuho Financial Group, Inc. (current)
Junichi Kato (July 30, 1957)	Managing Executive Officer Head of Markets Unit Managing Executive Officer of Mizuho Bank, Ltd.	Apr. 2008	Executive Officer of Mizuho Securities Co., Ltd. / President & CEO of Mizuho Bank (Switzerland) Ltd	June 2015
		Apr. 2009	Managing Executive Officer of the former Mizuho Bank, Ltd.
		Apr. 2012	Managing Executive Officer / Joint Head of Markets Unit of the former Mizuho Bank, Ltd.
			Managing Executive Officer / Joint Head of Markets Unit of the former Mizuho Corporate Bank, Ltd.
		July 2013	Managing Executive Officer / Joint Head of Markets Unit of Mizuho Bank, Ltd.
		Apr. 2014	Managing Executive Officer / Head of Markets Unit of Mizuho Financial Group, Inc. (current)
			Managing Executive Officer / Head of Markets Unit of Mizuho Bank, Ltd. (current)
Masayuki Hoshi (Mar. 9, 1960)	Managing Executive Officer	Apr. 2009	Executive Officer / General Manager of Corporate Banking Division No.17 of the former Mizuho Corporate Bank, Ltd.	June 2015

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Name (date of birth)	Current positions and principal outside positions	Business experience		Expiration of current term as executive officer
	Head of Financial Institutions & Public Sector Business Unit and Head of Transaction Banking Unit Managing Executive Officer of Mizuho Bank, Ltd.	Apr. 2010	Executive Officer / Joint Head of Corporate Banking Unit (Financial Institutions & Public Sector)
		Apr. 2011	Managing Executive Officer / Head of Global Transaction Banking Unit and Head of Global Asset Management Unit
		Apr. 2012	Managing Executive Officer / Head of Financial Institutions & Public Sector Business Unit and Head of Transaction Banking Unit of the former Mizuho Bank, Ltd. (until July 2013)
			Managing Executive Officer / Head of Financial Institutions & Public Sector Business Unit and Head of Transaction Banking Unit of the former Mizuho Corporate Bank, Ltd. (until July 2013)
		Apr. 2013	Managing Executive Officer / Head of Financial Institutions & Public Sector Business Unit and Head of Transaction Banking Unit of Mizuho Financial Group, Inc. (current)
		July 2013	Managing Executive Officer / Head of Financial Institutions & Public Sector Business Unit and Head of Transaction Banking Unit of Mizuho Bank, Ltd. (current)
Tomoshige Jingu (Feb. 16, 1961)	Managing Executive Officer Head of Human Resources Group (Group CHRO)	Apr. 2008	General Manager of Shinjuku Corporate Banking Division of the former Mizuho Corporate Bank, Ltd.	June 2015
		Apr. 2010	General Manager of Nagoya Corporate Banking Division
		Apr. 2011	Executive Officer / General Manager of Nagoya Corporate Banking Division

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Name (date of birth)	Current positions and principal outside positions	Business experience		Expiration of current term as executive officer
	Managing Executive Officer of Mizuho Bank, Ltd.	Apr. 2012	Managing Executive Officer of the former Mizuho Bank, Ltd. (until July 2013)
		Apr. 2013	Managing Executive Officer of the former Mizuho Corporate Bank, Ltd.
		July 2013	Managing Executive Officer of Mizuho Bank, Ltd.
		Apr. 2014	Managing Executive Officer / Head of Human Resources Group of Mizuho Financial Group, Inc. (current)
			Managing Executive Officer / Head of Human Resources Group of Mizuho Bank, Ltd. (current)
Ryusuke Aya (May 20, 1960)	See “Directors” under this Item 6.A.		See “Directors” under this Item 6.A.	June 2015
Junichi Shinbo (May 21, 1961)	See “Directors” under this Item 6.A.		See “Directors” under this Item 6.A.	June 2015
Koji Fujiwara (June 29, 1961)	See “Directors” under this Item 6.A.		See “Directors” under this Item 6.A.	June 2015

No family relationship exists among any of our directors and executive officers.

6.B. Compensation

Mizuho Financial Group transformed from a Company with Board of Auditors into a Company with Committees on June 24, 2014. The following contents provide information before the transformation.

In accordance with the Companies Act, as a Company with Board of Auditors, compensation for our directors and corporate auditors, including bonuses, retirement allowances and incentive stock options, had to be approved at our general meeting of shareholders, as our articles of incorporation did not specify otherwise. The shareholders’ approval specified the upper limit of the aggregate amount of compensation, and included the description of benefits in kind. Compensation for a director or corporate auditor was fixed by our board of directors or by consultation among our corporate auditors in accordance with our internal regulations and practice and, in the case of retirement allowances, generally reflected the position of the director or corporate auditor at the time of retirement, the length of his service as a director or corporate auditor and his contribution to our performance.

The aggregate compensation, including bonuses and stock compensation-type stock options (stock acquisition rights) but excluding retirement allowances, paid by Mizuho Financial Group and its subsidiaries to the directors and corporate auditors of Mizuho Financial Group during the fiscal year ended March 31, 2014 was ¥503 million and ¥86 million, respectively.

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Listed companies in Japan are required under Cabinet Office Ordinance on Disclosure of Corporate Affairs, etc., to disclose the compensation provided to their directors and corporate auditors for the relevant fiscal year if the aggregate annual compensation per the director/corporate auditor equals or exceeds ¥100 million (including any compensation provided by major subsidiaries of such listed company as directors and corporate auditors of such subsidiaries). None of our directors and corporate auditors received compensation that equaled or exceeded the foregoing amount in the fiscal year ended March 31, 2014.

Mizuho Financial Group and some of its subsidiaries, including the former Mizuho Bank and the former Mizuho Corporate Bank, abolished their respective retirement allowance programs for directors, corporate auditors and officers. At the ordinary general meeting of shareholders held in June 2008, Mizuho Financial Group and such subsidiaries obtained shareholders’ approval for a payment of lump sum retirement allowances for directors and corporate auditors (other than those elected after such shareholders’ meeting) at the time of their respective retirement.

In conjunction with the abolishment of the retirement allowance program, we obtained shareholder’s approval for the introduction of stock acquisition rights for the directors (excluding outside directors) at the ordinary general meeting of shareholders held on June 26, 2008. On January 30, 2009, our board of directors resolved to issue stock acquisition rights to directors and executive officers and subsequently allotted an aggregate of 5,409 stock acquisition rights on February 16, 2009. As the directors of Mizuho Financial Group, our directors received 435 stock acquisition rights. Each stock acquisition right represents a right to purchase 1,000 shares of our common stock at ¥1 per share of common stock. The period during which the stock acquisition rights may be exercised shall be until February 16, 2029. Their exercise is conditioned on the holder losing his or her status as director or executive officer. The book value of each stock acquisition right was ¥190,910 as of March 31, 2014.

On September 3, 2009, our board of directors resolved to issue stock acquisition rights to directors and executive officers and subsequently allotted an aggregate of 5,835 stock acquisition rights on September 25, 2009. As the directors of Mizuho Financial Group, our directors received 500 stock acquisition rights. Each stock acquisition right represents a right to purchase 1,000 shares of our common stock at ¥1 per share of common stock. The period during which the stock acquisition rights may be exercised shall be until September 25, 2029. Their exercise is conditioned on the holder losing his or her status as director or executive officer. The book value of each stock acquisition right was ¥168,690 as of March 31, 2014.

On July 30, 2010, our board of directors resolved to issue stock acquisition rights to directors and executive officers and subsequently allotted an aggregate of 6,808 stock acquisition rights on August 26, 2010. As the directors of Mizuho Financial Group, our directors received 500 stock acquisition rights. Each stock acquisition right represents a right to purchase 1,000 shares of our common stock at ¥1 per share of common stock. The period during which the stock acquisition rights may be exercised shall be until August 26, 2030. Their exercise is conditioned on the holder losing his or her status as director or executive officer. The book value of each stock acquisition right was ¥119,520 as of March 31, 2014.

On November 18, 2011, our board of directors resolved to issue stock acquisition rights to directors and executive officers, and subsequently allotted an aggregate of 12,452 stock acquisition rights on December 8, 2011. As the directors of Mizuho Financial group, our directors received 500 stock acquisition rights. Each stock acquisition right represents a right to purchase 1,000 shares of our common stock at ¥1 per share of common stock. The period during which the stock acquisition rights may be exercised shall be until December 8, 2031. Their exercise is conditioned on the holder losing his or her status as director or executive officer. The book value of each stock acquisition right was ¥91,840 as of March 31, 2014.

On July 31, 2012, our board of directors resolved to issue stock acquisition rights to directors and executive officers, and subsequently allotted an aggregate of 11,776 stock acquisition rights on August 31, 2012. As the directors of Mizuho Financial group, our directors received 498 stock acquisition rights. Each stock acquisition

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right represents a right to purchase 1,000 shares of our common stock at ¥1 per share of common stock. The period during which the stock acquisition rights may be exercised shall be until August 31, 2032. Their exercise is conditioned on the holder losing his or her status as director or executive officer. The book value of each stock acquisition right was ¥113,250 as of March 31, 2014.

On January 31, 2014, our board of directors resolved to issue stock acquisition rights to directors and executive officers, and subsequently allotted an aggregate of 7,932 stock acquisition rights on February 17, 2014. As the directors of Mizuho Financial group, our directors received 184 stock acquisition rights. Each stock acquisition right represents a right to purchase 1,000 shares of our common stock at ¥1 per share of common stock. The period during which the stock acquisition rights may be exercised shall be until February 17, 2034. Their exercise is conditioned on the holder losing his or her status as director or executive officer. The book value of each stock acquisition right was ¥192,610 as of March 31, 2014.

6.C. Board Practices

Under the Companies Act, Companies with Committees are required to establish a nominating committee, a compensation committee and an audit committee and the majority of the respective committee members must be outside directors, as defined under the Companies Act. Such companies are also required to appoint executive officers under the Companies Act.

Pursuant to the definition prescribed in the Companies Act, our outside directors shall not currently serve as executive directors (representative directors or directors other than representative directors appointed as directors executing our business by resolution of the board of directors as well as other directors executing our business), executive officers or employees of Mizuho Financial Group or its subsidiaries nor shall have previously served as executive directors, executive officers or employees of Mizuho Financial Group or its subsidiaries.

We have transformed into a Company with Committees from a Company with Board of Corporate Auditors in June 2014 with the belief that, under the current legal system, a Company with Committees is the most effective as a system to realize the basic policy regarding our corporate governance system for the following reasons:

• To allow executive officers to make swift and flexible decisions on business execution delegated by the Board of Directors and to implement business execution, and to allow the Board of Directors to focus on determining matters such as basic management policies and effectively supervising management.

• To secure to the fullest extent possible a checks and balances function that fully utilizes the viewpoints of outside parties and objectively secure appropriateness and fairness in decision-making through members of the Nominating Committee, the Compensation Committee and the Audit Committee, which consist mainly of outside directors.

• To make possible the creation of systems that are necessary to realize the fundamental perspectives regarding the corporate governance of the Mizuho group in a form that takes into account what our group aims to be and its challenges.

• To be in line with governance systems that are required globally with a strong recognition that our group operates globally and is in a position in which it should play a leading role in the industry as a financial group that is a Global Systemically Important Financial Institution (G-SIFI); to continue constructing a strong governance system that will agilely respond to domestic and global structural changes and overcome a highly competitive environment; and as a result, to allow our group to fulfill its social role and mission, which is to realize continuous and stable corporate growth and improved corporate value and shareholder interests and contribute to domestic and global economic and industrial development and prosperity of society, in response to the demands of our stakeholders.

Pursuant to our Articles of Incorporation, we have established general meetings of shareholders, individual directors, Board of Directors, Nominating Committee, Audit Committee, Compensation Committee and an accounting auditor as the primary components of our corporate governance system.

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(Board of Directors)

Under the Companies Act, directors are elected by resolution of the general meetings of shareholders, and their term of office ends at the close of the ordinary general meeting of shareholders relating to the fiscal year ending within a year following their appointment.

In addition, under the Companies Act, the duties of the board of directors include making decisions on business execution and supervision of the execution of duties of directors and executive officers, and by its resolution, it may delegate making decisions on business execution (excluding certain specified matters) to the executive officers.

The main roles of our Board of Directors are making decisions on business execution such as basic management policies, which are legally matters to be determined solely by the Board of Directors, and supervising the execution of duties by directors and executive officers. The Board of Directors shall, in principle, delegate to our President & Executive Officer, who is also the Group CEO, decisions on business execution (excluding matters that are legally required to be determined solely by the Board of Directors), for the purpose of realizing swift and flexible decision-making and expeditious corporate management and strengthening the supervision of directors and executive officers by the Board of Directors.

Pursuant to the Articles of Incorporation, we have no more than 15 directors and maintain the following structure in order to manage the Board of Directors in an effective and stable manner. In light of the role of the Board of Directors to supervise management, the majority of the members of the Board of Directors consist of outside directors and internal directors who do not concurrently serve as persons performing executive roles (“Internal Non-Executive Directors,” and together with outside directors, “Non-Executive Directors”). Currently, the Board of Directors consists of a total of 13 directors (six outside directors, two Internal Non-Executive Directors and five directors concurrently serving as executive officers).

The chairman of the Board of Directors shall, in principle, be an outside director (or at least a Non-Executive Director) in light of the role of the Board of Directors to supervise management. Ms. Hiroko Ota currently serves as the chairman of the Board of Directors.

(Nominating Committee)

Under the Companies Act, the nominating committee is required to consist of at least three directors, and the majority of its members is required to consist of outside directors. The duties of the nominating committee include the determination of the contents of proposals regarding the appointment and dismissal of directors to be submitted to the general meeting of shareholders.

The Nominating Committee of Mizuho Financial Group shall determine the contents of proposals regarding the appointment and dismissal of directors of Mizuho Financial Group to be submitted to the general meeting of shareholders and shall exercise the approval rights held by Mizuho Financial Group with respect to the appointment and dismissal of directors of each of Mizuho Bank, Mizuho Trust & Banking and Mizuho Securities (the “Core Subsidiaries”) and exercise the approval rights held by Mizuho Financial Group with respect to the appointment and removal of representative directors and senior directors of the Core Subsidiaries.

The chairman of the Nominating Committee shall be an outside director, and in principle its members shall be appointed from among outside directors (or at least Non-Executive Directors) in order to ensure objectivity and transparency in the appointment of directors. All members of the Nominating Committee, including the chairman, are currently outside directors.

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(Compensation Committee)

Under the Companies Act, the compensation committee is required to consist of at least three directors, and the majority of its members is required to consist of outside directors. The duties of the compensation committee include the determination of the compensation for each individual director and executive officer.

The Compensation Committee of Mizuho Financial Group shall determine the compensation for each individual director and executive officer of Mizuho Financial Group, exercise the approval rights held by Mizuho Financial Group regarding compensation of each individual director of the Core Subsidiaries, and determine the basic policies and compensation system for directors, and executive officers and of Mizuho Financial Group and the Core Subsidiaries.

The chairman of the Compensation Committee shall be an outside director, and in principle its members shall be appointed from among the outside directors (or at least Non-Executive Directors) in order to ensure objectivity and transparency in the compensation of directors and executive officer. All members of the Compensation Committee, including the chairman, are currently outside directors.

(Audit Committee)

Under the Companies Act, the audit committee is required to consist of at least three Non-Executive Directors, and the majority of its members is required to consist of outside directors. The duties of the audit committee include the audit of the execution of duties by directors and executive officers and preparation of audit reports.

The Audit Committee of Mizuho Financial Group shall audit the execution of duties by the directors and executive officers, monitor and inspect the establishment and management of the internal control system of Mizuho Financial Group and its subsidiaries, monitor and inspect the condition of the execution of duties with respect to corporate management of subsidiaries and others by executive officers, prepare audit reports and determine the contents of proposals regarding the appointment, dismissal and non-reappointment of accounting auditors to be submitted to the general meeting of shareholders.

Given that it is necessary for the Audit Committee to gather information through internal directors who are familiar with the financial business and related regulations, share information among the Audit Committee, and to have sufficient coordination with internal control departments, we shall in principle appoint one or two Internal Non-Executive Directors as full-time members of the Audit Committee. The majority of its members shall be outside directors. Currently, among the five members of the Audit Committee, two members are appointed among Internal Non-Executive Directors as full-time members of the Audit Committee, and three members are appointed among outside directors.

All members of the Audit Committee shall be independent under the provisions of the United States Securities and Exchange Commission and the rules of the New York Stock Exchange. Further, at least one member of the Audit Committee shall be a “financial expert” as defined under U.S. laws and regulations.

We have established committees and other organizations on a voluntary basis in addition to the above legally-required three committees as set forth below:

• Human Resources Review Meeting

We have established the Human Resources Review Meeting that consists of the President & Executive Officer and outside directors who serve as members of the Nominating Committee and Compensation Committee as a deliberative body that mainly conducts the deliberation of proposals to appoint executive officers, as defined in the Companies Act, and executive officers, as defined in our internal regulations, with title of Mizuho Financial Group and executive officers as defined in our internal regulations, with title of Core Subsidiaries and assessment of executive officers.

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• Risk Committee

We have established the Risk Committee that in principle fully consists of Non-Executive Directors or external experts as an advisory body that mainly advises the Board of Directors with respect to the supervision of the determination and the implementation relating to risk governance.

• External Director Session

We have established the External Director Session that consists of all outside directors and the President & Executive Officer as a forum for free discussions with an aim to deepen outside directors’ understanding of our group and share the top management’s awareness of issues through communication among directors.

(Executive Officers)

Under the Companies Act, Companies with Committees are required to appoint at least one executive officer by the resolution of the board of directors, and its term of office ends at the close of the meeting of the board of directors initially convened following the close of the ordinary general meeting of shareholders relating to the fiscal year ending within a year following appointment. Executive officers shall decide on the business execution delegated by a resolution of the board of directors and implement business execution.

Executive officers of Mizuho Financial Group take charge of making decisions on business execution delegated by a resolution of the Board of Directors and implementing business execution of Mizuho Financial Group.

We shall appoint the Group CEO and, in principle, the most senior staff who controls units that constitute profit units under the control of the Group CEO, group heads who control each group that comprises corporate planning and management units and the Head of Internal Audit Group as executive officers based on the policy that it is necessary to appoint as executive officers people who assume a managing role.

While the President & Executive Officer is responsible for the business operations of Mizuho Financial Group, from the perspective of providing a checks and balances function and ensuring sufficient consideration in connection with decision-making, in principle, determination of delegated matters relating to making decisions on business execution following the transformation into a Company with Committees shall be based on deliberation of the Executive Management Committee (however, excluding matters ensured to be deliberated and discussed under sufficient checks and balances by Non-Executive Directors such as through the Nominating Committee, Compensation Committee and Human Resources Review Meeting).

(Agreements with Directors, etc.)

None of our directors has service contracts with us providing for benefits upon termination of service.

Our Articles of Incorporation, in accordance with the Companies Act, allow us to enter into an agreement with outside directors that limits their liabilities incurred in connection with their service. The limitation of liabilities under such agreement, if the outside director performed his/her duty in good faith without gross negligence, must be the higher of either (i) a pre-determined amount not less than ¥20 million or (ii) the amount prescribed in laws and regulations, which is currently equivalent to two times the annual compensation such outside director. Pursuant to the provisions, we have entered into such agreements with all of our outside directors that are in office.

Based on the rules of the Tokyo Stock Exchange, listed companies are required to have at least one member of the board of directors to be “independent.” Currently, five of our outside directors meet such independence requirements.

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For additional information on our directors and our board practices, see “Item 6.A. Directors and Senior Management—Directors and Corporate Auditors” and “Item 10.B. Additional Information—Memorandum and Articles of Association” in this annual report.

The rights of holders of American Depositary Receipts, or ADRs, which evidence ADSs, including such ADR holders’ rights relating to corporate governance practices, are governed by the deposit agreement, which is included as Exhibit 2.2 to this annual report.

Corporate Governance Practices

Companies listed on the New York Stock Exchange, or NYSE, must comply with certain standards regarding corporate governance under Section 303A of the NYSE Listed Company Manual. However, NYSE-listed companies that are foreign private issuers meeting certain criteria, such as us, are permitted to follow home country practices in lieu of certain provisions of Section 303A, and we are relying on this exemption. See “Item 16.G. Corporate Governance” for a summary of significant ways in which our corporate governance practices differ from those followed by NYSE-listed U.S. companies.

6.D. Employees

As of March 31, 2012, 2013 and 2014, we had 56,109, 55,492 and 54,911 employees, respectively, on a consolidated basis, including overseas local staff but excluding advisers and temporary employees. We also had an average of approximately 18,651 temporary employees during the fiscal year ended March 31, 2014.

The following tables show our full-time employees as of March 31, 2014 and the average number of temporary employees for the fiscal year ended March 31, 2014, each broken down based on business segment and geographical location:

Business segment	Number of full-time employees			Average number of temporary employees
Mizuho Bank		34,748			15,936
Mizuho Trust & Banking		4,638			823
Mizuho Securities		8,910			1,404
Others		6,615			488
Total		54,911			18,651
Location	Percentage of full-time  employees			Average percentage of temporary employees
Japan		92.3	%		99.8	%
Americas		1.9			0.0
Europe		1.2			0.1
Asia/Oceania (excluding Japan) and others		4.6			0.1
Total		100.0	%		100.0	%

Most of our full-time non-management employees in Japan are members of a labor union. Outside Japan, some of our employees are members of local unions. We consider our labor relations with employees to be good.

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6.E. Share Ownership

The following table shows the number of shares of our common stock owned by our directors and executive officers as of June 30, 2014:

Directors	Number of shares owned
Yasuhiro Sato		34,580
Yasunori Tsujita		304,200
Ryusuke Aya		89,480
Junichi Shinbo		118,240
Koji Fujiwara		34,000
Hideyuki Takahashi		410,860
Nobukatsu Funaki		4,100
Akihiko Nomiyama		27,600
Mitsuo Ohashi		—
Takashi Kawamura		130,000
Tatsuo Kainaka		—
Kanemitsu Anraku		7,000
Hiroko Ota		5,000

Executive Officers	Number of shares owned
Yasuhiro Sato		See above
Yasunori Tsujita		See above
Toshitsugu Okabe		556,900
Daisaku Abe		274,080
Tadashi Kanki		418,800
Akira Sugano		330,400
Junichi Kato		52,800
Masayuki Hoshi		6,300
Tomoshige Jingu		89,220
Ryusuke Aya		See above
Junichi Shinbo		See above
Koji Fujiwara		See above

None of our directors or executive officers is the owner of more than one percent of our common stock, and no director or executive officer has voting rights with respect to our common stock that are different from any other holder of our common stock.

For information on our stock compensation-type stock options (stock acquisition rights) for directors, see “Item 6.B Compensation”.

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We maintain an employee stock ownership plan under which participating employees of the companies listed below is able to purchase our shares with funds deducted from such employee’s salary and bonus payments. The plan administrator makes open-market purchases of our shares for the account of the plan on a monthly basis. The companies contribute matching funds equivalent to 5% of the amounts contributed. The following table shows the numbers of shares that this plan held as of March 31, 2014:

	As of March 31, 2014
Plan	Employer companies	Number of shares owned
Mizuho Employee Stock Ownership Plan	Mizuho Financial Group Mizuho Bank Mizuho Trust & Banking Mizuho Asset Management Mizuho Research Institute Mizuho Information & Research Institute		101,411,849
Total			101,411,849

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ITEM 7. MAJOR SHAREHOLDERS AND RELATED PARTY TRANSACTIONS

7.A. Major Shareholders

Common Stock

The following table sets forth information about the ten largest holders of shares of our common stock appearing on the register of shareholders as of March 31, 2014:

	As of March 31, 2014
Name	Number of shares owned		Percentage of outstanding shares
Japan Trustee Services Bank, Ltd. (trustee account)		1,058,006,500		4.36	%
The Master Trust Bank of Japan, Ltd. (trustee account)		935,152,900		3.86
The Bank of New York Mellon SA/NV 10		699,174,270		2.88
JP Morgan Chase Bank 380072		452,608,000		1.87
State Street Bank West Client – Treaty		271,620,516		1.12
Japan Trustee Services Bank, Ltd. (trustee account 6)		266,832,500		1.10
Japan Trustee Services Bank, Ltd. (trustee account 5)		266,487,300		1.10
Japan Trustee Services Bank, Ltd. (trustee account 1)		265,131,300		1.09
Japan Trustee Services Bank, Ltd. (trustee account 3)		262,653,300		1.08
Japan Trustee Services Bank, Ltd. (trustee account 2)		262,003,600		1.08
Total		4,739,670,186		19.54	%

As of March 31, 2014, there were 182 record holders of our common stock with addresses in the United States, whose shareholdings represented approximately 10% of our outstanding common stock on that date. Because some of these shares were held by brokers or other nominees, the number of record holders with addresses in the United States might not fully reflect the number of beneficial owners in the United States.

Preferred Stock

Classes of preferred stock with shares outstanding as of March 31, 2014 consisted of eleventh series class XI preferred stock, which is non-voting. The following tables set forth information about the ownership of shares of eleventh series class XI preferred stock by our major shareholders of the respective preferred stock as of March 31, 2014, as appearing on the register of preferred shareholders:

Eleventh Series Class XI Preferred Stock

	As of March 31, 2014
Name	Number of shares owned		Percentage of outstanding  shares
Marubeni Corporation		14,500,000		4.64	%
Shimizu Corporation		10,000,000		3.20
Electric Power Development Co., Ltd.		10,000,000		3.20
ANA Holdings Inc.		6,000,000		1.92
JFE Steel Corporation		6,000,000		1.92
Daiichi Sankyo Company, Limited		6,000,000		1.92
Canon Inc.		5,000,000		1.60
Kyushu Electric Power Company, Incorporated		5,000,000		1.60
Shiseido Company, Limited		5,000,000		1.60
Chubu Electric Power Company, Incorporated		5,000,000		1.60
Total		72,500,000		23.19	%

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As of March 31, 2014, there were no holders of our preferred stock with addresses in the United States.

All of the shares of the thirteenth series class XIII preferred stock issued by Mizuho Financial Group (36,690,000 shares) were acquired and cancelled on July 11, 2013.

To our knowledge, we are not directly or indirectly owned or controlled by any other corporation(s), by any foreign government or by any other natural or legal person(s) severally or jointly. We know of no arrangements the operation of which may at a later time result in a change of control.

7.B. Related Party Transactions

We and our subsidiary banks had, and expect to have in the future, banking transactions and other transactions in the ordinary course of business with our related parties. Although, for the fiscal year ended March 31, 2014, such transactions included, but were not limited to, call money, loans, deposits, guarantees and foreign exchange transactions, those transactions were immaterial and were made on substantially the same terms, including interest rates and collateral, as those prevailing at the time for comparable transactions with other persons and did not involve more than the normal risk of collectability or present other unfavorable features.

During the fiscal year ended March 31, 2014, none of our directors or executive officers or corporate auditors, and none of the close members of their respective families, had any transactions that are material or any transactions that are unusual in their nature or conditions, involving goods, services or tangible or intangible assets, to which we were, are or will be a party, and there were no such transactions proposed as of March 31, 2014.

During the fiscal year ended March 31, 2014, no loans were made to our directors or executive officers or corporate auditors other than loans in the ordinary course of business, on substantially the same terms, including interest rates and collateral, as those prevailing at the time for comparable transactions with other persons, and involving no more than the normal risk of collectability or presenting other unfavorable features.

7.C. Interests of Experts and Counsel

Not applicable.

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ITEM 8. FINANCIAL INFORMATION

8.A. Consolidated Statements and Other Financial Information

Financial Statements

Our consolidated financial statements are set forth in this annual report under “Item 18. Financial Statements.”

Legal Proceedings

We are involved in normal collection proceedings initiated by us and other legal proceedings in the ordinary course of our business. In addition, we are involved in the following legal proceedings.

An Indonesian subsidiary of ours acts as collateral agent for the trustee of bond issuances made by subsidiaries of Asia Pulp & Paper Company Ltd. (“APP”). In that role, the subsidiary is involved in a dispute between the bondholders and such APP subsidiaries in their capacities as the issuers, guarantors and/or pledgors of security for the bonds relating to foreclosure proceedings on the collateral and has been named as a defendant in a lawsuit brought by the obligors under the bonds in Indonesia. Our consolidated financial statements do not include a reserve in relation to this dispute because we do not believe the resolution of this matter will have a significant impact on our consolidated financial condition or results of operations, although there can be no assurance as to the foregoing.

Dividend Policy

We have been implementing “disciplined capital management” by pursuing the optimal balance between “strengthening of stable capital base” and “steady returns to shareholders.”

Based on the above policy, we paid annual cash dividends for the fiscal year ended March 31, 2014 of ¥6.5 per share of common stock (interim cash dividends of ¥3 per share of common stock and cash dividends at the end of the fiscal year of ¥3.5 per share of common stock). With respect to Eleventh Series Class XI Preferred Stock, we made dividend payments for the fiscal year ended March 31, 2014 as prescribed.

Our articles of incorporation provide for our ability to distribute an interim dividend to shareholders of record as of September 30 in each year pursuant to Article 454 Paragraph 5 of the Companies Act, and we intend to distribute dividends twice per year, at the interim period and the end of the period, to return profits to shareholders in a timely way.

The distribution of surplus for the fiscal year end is subject to the authorization by a general meeting of shareholders, while the distribution of surplus for the interim period is made by resolution of our board of directors.

With the results of the fiscal year ended March 31, 2014, we believe that we have reached a certain capital level that can support our future growth strategy. In and after the fiscal year ending March 31, 2015, we continuously consider the optimum balance between “strengthening of stable capital base” and “steady returns to shareholders.” We will comprehensively consider the business environment such as the Mizuho group’s business results, profit base, capital, and domestic and international regulation trends such as the Basel framework and determine cash dividend payments for each term.

8.B. Significant Changes

Except as disclosed in note 34 to our consolidated financial statements, no significant change in our financial position has occurred since the date of the financial statements included in this annual report.

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ITEM 9. THE OFFER AND LISTING

9.A. Listing Details

Market Price Information for Our American Depositary Shares

Our ADSs are listed on the New York Stock Exchange.

The following table sets forth, for the periods indicated, the high and low trading prices and average daily trading volume on the New York Stock Exchange for our ADSs:

Fiscal years ended/ending March 31,	Price per ADS				Average daily trading volume
	High		Low
					(shares)
2010	$	5.70	$	3.33		520,497
2011		4.27		2.67		720,409
2012		3.42		2.43		779,986
2013		4.68		2.80		478,892
2014		4.55		3.62		556,105
2013:
First quarter		3.35		2.80		452,314
Second quarter		3.49		3.01		360,966
Third quarter		3.67		3.01		353,956
Fourth quarter		4.68		3.62		759,719
2014:
First quarter		4.55		3.62		1,197,898
Second quarter		4.51		4.02		309,364
Third quarter		4.43		4.06		338,905
Fourth quarter		4.52		3.87		369,508
2015:
First quarter		4.17		3.82		266,474
Most recent six months:
January		4.52		4.22		337,560
February		4.29		4.01		413,028
March		4.21		3.87		362,080
April		4.17		3.82		299,132
May		3.99		3.82		270,044
June		4.14		3.92		230,246
July (through July 24)		4.11		3.92		157,730

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Market Prices Information for Our Shares

See “Item 9.C. The Offer and Listing—Markets” for information on the stock exchanges on which our common stock is listed.

The following table sets forth, for the periods indicated, the high and low trading prices and average daily trading volume on the First Section of the Tokyo Stock Exchange for our common stock:

	Price per share				Average daily trading volume
Fiscal years ended/ending March 31,	High		Low
					(shares)
2010	¥	274	¥	146		170,679,648
2011		192		110		173,457,514
2012		146		98		107,266,520
2013		221		110		142,901,584
2014		240		180		186,546,095
2013:
First quarter		138		110		95,949,077
Second quarter		137		119		74,752,544
Third quarter		157		121		99,371,152
Fourth quarter		221		158		313,648,683
2014:
First quarter		233		180		327,942,982
Second quarter		226		200		134,620,102
Third quarter		229		199		123,454,968
Fourth quarter		240		197		159,242,310
2015:
First quarter		213		193		97,798,018
Most recent six months:
January		240		215		206,459,042
February		221		203		167,863,163
March		213		197		106,196,605
April		213		196		79,218,895
May		205		193		105,714,190
June		212		198		108,837,929
July (through July 25)		209		198.3		99,247,556

9.B. Plan of Distribution

Not applicable.

9.C. Markets

The principal trading market for our shares of common stock is the First Section of the Tokyo Stock Exchange. Our shares have been listed on the First Section of the Tokyo Stock Exchange, under the code “8411,” since our establishment as the holding company of the Mizuho group on March 12, 2003, as the successor to Mizuho Holdings. Our shares had been listed on the First Section of the Osaka Securities Exchange under the same code until the integration of the cash equity markets of the Osaka Securities Exchange and the Tokyo Stock Exchange which occurred on July 16, 2013.

Our ADSs have been listed on the New York Stock Exchange since November 8, 2006 and are quoted under the ticker symbol “MFG.”

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9.D. Selling Shareholders

Not applicable.

9.E. Dilution

Not applicable.

9.F. Expenses of the Issue

Not applicable.

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ITEM 10. ADDITIONAL INFORMATION

10.A. Share Capital

Not applicable.

10.B. Memorandum and Articles of Association

Objects and Purposes in our Articles of Incorporation

Our corporate purpose, as specified in article 2 of our articles of incorporation, which is included in this annual report as Exhibit 1.1, is to engage in the following businesses as a bank holding company:

• operation and management of bank holding companies, banks, long-term credit banks, specialized securities companies and other companies which we may own as our subsidiaries under the Banking Act; and

• any other business incidental to the foregoing.

Our Board of Directors

Under the Companies Act, because we have adopted the “Company with Committees” system, our directors have no power to execute our business except in limited circumstances as permitted by law. If a director also serves concurrently as an executive officer, then he or she can execute our business in the capacity of executive officer. There is no provision in our articles of incorporation as to our directors’ power to vote on a proposal, arrangement or contract in which a director is materially interested. The Companies Act, however, requires such director to refrain from voting on such matters at meetings of the board of directors.

The amount of compensation to each our director is determined by the Compensation Committee, which consists of our directors, the majority of whom are outside directors (See “Item 6.C. Board Practices”).

The borrowing powers have been delegated to the executive officers by the board of directors in accordance with the Companies Act.

Neither the Companies Act nor our articles of incorporation set a mandatory retirement age for our directors.

There is no requirement concerning the number of shares an individual must hold to qualify as a director under the Companies Act or our articles of incorporation.

Common Stock

General

Set forth below is information concerning our shares of common stock, including brief summaries of certain provisions of our articles of incorporation, our share handling regulations and the Companies Act (Kaisha Hou) (Act No. 86 of 2005, as amended) relating to joint stock corporations (kabushiki kaisha) and certain related legislation, all as currently in effect.

Under our articles of incorporation, we are authorized to issue 48,000,000,000 shares of common stock.

As of March 31, 2014, 24,263,885,187 shares of common stock were issued.

Where relevant to the common stock, provisions of our preferred stock are also described below.

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Distribution of Surplus

General

Under the Companies Act, distribution of cash or other assets by a joint stock corporation to its shareholders, including dividends, takes the form of distribution of Surplus (as defined in “—Restriction on Distribution of Surplus”). We are permitted to make distributions of Surplus to our shareholders any number of times per fiscal year, subject to certain limitations described in “—Restriction on Distribution of Surplus.” Under the Companies Act and our articles of incorporation, distributions of Surplus are in principle permitted by a resolution of the board of directors as long as our non-consolidated annual financial statements and certain documents for the latest fiscal year fairly present our assets and profit and loss, as required by an ordinance of the Ministry of Justice. Distributions of Surplus are, however, required to be authorized by a resolution of a general meeting of shareholders if the aforementioned condition is not met.

Distributions of Surplus may be made in cash or in kind in proportion to the number of shares of common stock held by each shareholder. A resolution of the board of directors or a general meeting of shareholders authorizing a distribution of Surplus must specify the kind and aggregate book value of the assets to be distributed, the manner of allocation of such assets to shareholders, and the effective date of the distribution. If a distribution of Surplus is to be made in kind, we may, pursuant to a resolution of the board of directors or (as the case may be) a general meeting of shareholders, grant the right to our shareholders to require us to make such distribution in cash instead of in kind. If no such right is granted to shareholders, the relevant distribution of Surplus must be approved by a special resolution of a general meeting of shareholders (see “—Voting Rights” with respect to a “special resolution”).

Under our articles of incorporation, the record date for annual dividends and interim dividends is March 31 and September 30, respectively, in each year. In Japan, the “ex-dividend date” (the date from which purchasers of shares through Japanese stock exchanges will not be entitled to the dividends to be paid to registered shareholders as of any record date) and the record date for dividends precede the date of determination of the amount of the dividend to be paid. The ex-dividend date of the shares of common stock is generally the second business day prior to the record date. Under our articles of incorporation, we are not obligated to pay any distribution of Surplus to be made in cash which has not been received after the lapse of five years from the commencement date of such distribution.

Restriction on Distribution of Surplus

Payment of annual dividends on shares of common stock is subject to the prior payment of dividends on shares of preferred stock of ¥20 per share of eleventh series class XI preferred stock. Payment of an interim dividend on shares of our common stock is also subject to the prior payment of an interim preferred dividend of one-half the annual preferred dividend amount on the shares of the series of preferred stock.

In making a distribution of Surplus, we must set aside in our additional paid-in capital and/or legal reserve an amount equal to one-tenth of the amount of Surplus so distributed, until the sum of its additional paid-in capital and legal reserve reaches one-quarter of its stated capital.

The amount of Surplus at any given time must be calculated in accordance with the following formula:

A + B + C + D - (E + F + G)

In the above formula:

“A” = the total amount of other capital surplus and other retained earnings, each such amount being that appearing on our non-consolidated balance sheet as of the end of the last fiscal year

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“B” = (if we have disposed of our treasury stock after the end of the last fiscal year) the amount of the consideration for such treasury stock received by us less the book value thereof

“C” = (if we have reduced our stated capital after the end of the last fiscal year) the amount of such reduction less the portion thereof that has been transferred to additional paid-in capital or legal reserve (if any)

“D” = (if we have reduced our additional paid-in capital or legal reserve after the end of the last fiscal year) the amount of such reduction less the portion thereof that has been transferred to stated capital (if any)

“E” = (if we have cancelled our treasury stock after the end of the last fiscal year) the book value of such treasury stock

“F” = (if we have distributed Surplus to our shareholders after the end of the last fiscal year) the total book value of the Surplus so distributed

“G” = certain other amounts set forth in an ordinance of the Ministry of Justice, including:

• if we have reduced Surplus and increased our stated capital, additional paid-in capital or legal reserve after the end of the last fiscal year, the amount of such reduction; and

• if we have distributed Surplus to shareholders after the end of the last fiscal year, the amount set aside in our additional paid-in capital or legal reserve, if any, as required by ordinances of the Ministry of Justice.

The aggregate book value of Surplus distributed by us may not exceed a prescribed distributable amount (the “Distributable Amount”), as calculated on the effective date of such distribution. The Distributable Amount at any given time shall be the amount of Surplus less the aggregate of (a) the book value of our treasury stock, (b) the amount of consideration for any of our treasury stock disposed of by us after the end of the last fiscal year and (c) certain other amounts set forth in an ordinance of the Ministry of Justice, including (if the sum of one-half of our goodwill and deferred assets exceeds the total of the stated capital, additional paid-in capital and legal reserve, each such amount being the amount in our non-consolidated balance sheet as of the end of the last fiscal year) all or certain part of such exceeding amount as calculated in accordance with the ordinances of the Ministry of Justice.

If we have become at our option a company with respect to which its consolidated balance sheet should also be considered in the calculation of the Distributable Amount (renketsu haito kisei tekiyo kaisha), we shall further deduct from the amount of Surplus the excess amount, if any, of (x) the total amount of the shareholders’ equity appearing on our non-consolidated balance sheet as of the end of the last fiscal year and certain other amounts set forth by an ordinance of the Ministry of Justice over (y) the total amount of the shareholders’ equity and certain other amounts set forth by an ordinance of the Ministry of Justice appearing on our consolidated balance sheet as of the end of the last fiscal year. We did not opt for becoming such a company with respect to the fiscal year ended March 31, 2014.

If we have prepared interim financial statements as described below, and if such interim financial statements have been approved by the board of directors or (if so required by the Companies Act) by a general meeting of shareholders, then the Distributable Amount must be adjusted to take into account the amount of profit or loss, and the amount of consideration for any of our treasury stock disposed of by us, during the period in respect of which such interim financial statements have been prepared. We may prepare non-consolidated interim financial statements consisting of a balance sheet as of any date subsequent to the end of the last fiscal year and an income statement for the period from the first day of the current fiscal year to the date of such balance sheet. Interim financial statements so prepared by us must be audited by our corporate auditors and/or outside accounting auditor, as required by an ordinance of the Ministry of Justice.

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Capital and Reserves

We may reduce our additional paid-in capital or legal reserve generally by resolution of a general meeting of shareholders and, if so decided by the same resolution, may account for the whole or any part of the amount of such reduction as stated capital. On the other hand, we may reduce our stated capital generally by special resolution of a general meeting of shareholders and, if so decided by the same resolution, may account for the whole or any part of the amount of such reduction as additional paid-in capital or legal reserve. In addition, we may reduce our Surplus and increase either (i) stated capital or (ii) additional paid-in capital and/or legal reserve by the same amount, in either case by resolution of a general meeting of shareholders.

Stock Splits

We may at any time split shares of common stock into a greater number of shares of common stock by determination by executive officers under the authority delegated by resolution of the board of directors. When a stock split is to be made, so long as our only class of outstanding stock is the common stock, we may increase the number of authorized shares in the same ratio as that of such stock split by amending our articles of incorporation, of which amendment may be effected by resolution of the board of directors without approval by shareholders.

Unit Share System

We have adopted the unit share system under which shareholders will have one voting right for each unit of shares consisting of 100 shares held by them at general meetings of shareholders or at meetings of holders of a particular class of shares, and shares constituting less than a full unit will carry no voting rights. See “—Preferred Stock—Voting Rights” for information on the voting rights that holders of preferred stock may have at general meetings of shareholders. Our articles of incorporation provide that the holders of shares constituting less than a full unit will not have shareholder rights, except for those specified in an ordinance of the Ministry of Justice which include rights (i) to receive dividends, (ii) to receive cash or other assets in case of a consolidation or split of shares, share exchange or share transfer, or merger or (iii) to be allotted rights to subscribe for free for new shares and stock acquisition rights when such rights are granted to shareholders. Holders of shares constituting less than a full unit may at any time request us to purchase such shares constituting less than a full unit (a) at the current market price as determined pursuant to the Companies Act in cases of such shares having a market price (such as our common stock) or (b) at the price as determined through negotiations between the holders of shares constituting less than a full unit and us in cases where such shares have no market price (such as our preferred stock), which request may not be withdrawn without our consent. In addition, holders of shares constituting less than a full unit may require us to sell them such number of shares, which, when combined with the number of shares already held by such holder, shall constitute a whole unit of shares; provided that we will be obliged to comply with such request only when we own a sufficient number of shares to accommodate such request. As prescribed in our share handling regulations, such requests shall be made through an account managing institution at which such shareholder has its account and Japan Securities Depository Center, Inc. (“JASDEC”) pursuant to the rules of JASDEC, without going through the notification procedure required for the exercise of shareholders’ rights entitled regardless of record dates as described in “—Transfer of Shares.” The executive officers under the authority delegated by the board of directors may reduce the number of shares constituting one unit of shares or cease to use the unit share system by amendments to the articles of incorporation without a special resolution of the general meeting of shareholders which would otherwise be required.

General Meetings of Shareholders

The ordinary general meeting of shareholders shall be held no later than three months from the last day of each business year and is normally held in June of each year. In addition, we may hold an extraordinary general meeting of shareholders whenever necessary. Notice of a general meeting of shareholders stating the place, the time and the purpose thereof must be given to each shareholder having voting rights (or, in the case of a non-resident shareholder, to its standing proxy or mailing address in Japan) at least two weeks prior to the date set for the meeting. The record date for an ordinary general meeting of shareholders is March 31 of each year.

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Any shareholder holding at least 300 voting rights or 1% of the total number of voting rights for six months or longer may propose a matter to be considered at a general meeting of shareholders by submitting a request to a representative director at least eight weeks prior to the date of such meeting. Any of the minimum percentages, time periods and number of voting rights necessary for exercising the minority shareholder rights described above may be decreased or shortened if our articles of incorporation so provide.

Voting Rights

Our shareholders have one voting right for each unit of shares held by them (regarding the voting rights held by holders of preferred stock, see “—Preferred Stock—Voting Rights”).

Except as otherwise provided by law or in our articles of incorporation, a resolution shall be adopted at a general meeting of shareholders by a majority of the voting rights held by the shareholders present at the meeting. Our articles of incorporation provide that the quorum for election of directors is one-third of the total number of voting rights. Our shareholders are not entitled to cumulative voting in the election of directors. A shareholder may exercise its voting rights in writing or through a proxy, provided that the proxy shall also be a holder of our shares having voting rights at such meeting.

The Companies Act provides that certain important matters shall be approved by a “special resolution” of a general meeting of shareholders. Under our articles of incorporation, the quorum for a special resolution is one-third of the total number of voting rights, and the approval of not less than two-thirds of the voting rights held by the shareholders present at the meeting is required for adopting a special resolution. Such important matters include:

1. any amendment to our articles of incorporation (except for such amendments that may be authorized by executive officers under the authority delegated by the board of directors under the Companies Act such as (i) an increase of the number of authorized shares in the same ratio as that of a stock split, (ii) a reduction of the number of shares per unit of shares and (iii) abolishing the unit share system);

2. our dissolution, merger or consolidation requiring shareholders’ approval;

3. establishment of a parent and wholly-owned subsidiary relationship by way of a share transfer (kabushiki-iten) or share exchange (kabushiki-kokan) requiring shareholders’ approval;

4. transfer of the whole or a substantial part of our business;

5. taking over of the whole of the business of another company requiring shareholders’ approval;

6. our corporate split requiring shareholders’ approval;

7. consolidation of shares of common stock;

8. acquisition of shares of common stock by us from a specific shareholder other than our subsidiary;

9. distribution of Surplus in kind (except when shareholders are granted the right to require to make such distribution in cash instead of in kind);

10. issuance or transfer of new shares or existing shares held by us as treasury stock to persons other than the shareholders at a “specially favorable” price; and

11. issuance of stock acquisition rights (including those incorporated in bonds with stock acquisition rights) to persons other than the shareholders at a “specially favorable” price or under “specially favorable” conditions.

Liquidation Rights

In the event of our liquidation, the assets remaining after payment of all debts, liquidation expenses, taxes and distributions of residual assets relating to the then outstanding preferred stock will be distributed among holders of common stock in proportion to the respective numbers of shares held by them. See “—Preferred Stock—Liquidation Rights.”

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Issue of Additional Shares and Pre-emptive Rights

Holders of the common stock have no pre-emptive rights. Authorized but unissued shares of common stock may be issued at such times and upon such terms as executive officers under the authority delegated by the board of directors determine, subject to the limitations as to the issuance of new shares of common stock at a “specially favorable” price mentioned in “—Voting Rights.” In the case of an issuance or transfer of shares or stock acquisition rights by way of an allotment to a third party which would dilute the outstanding voting shares by 25% or more or change the controlling shareholder, in addition to a determination by the executive officers, the approval of the shareholders or an affirmative opinion from a person independent of our management is generally required pursuant to the regulations of the stock exchanges in Japan. Executive officers under the authority delegated by the board of directors may, however, determine that shareholders of a particular class of stock shall be given subscription rights to new shares of the same class, in which case they must be given on uniform terms to all shareholders of that class as of a record date of which not less than two weeks’ prior public notice must be given. Each of the shareholders to whom such rights are given must also be given at least two weeks’ prior notice of the date on which such rights expire (but see “—Preferred Stock—Issue of Additional Shares and Pre-emptive Rights” regarding our preferred stock).

Stock Acquisition Rights

We may issue stock acquisition rights (shinkabu yoyakuken). Holders of stock acquisition rights are entitled to acquire shares from us, upon payment of the applicable exercise price, and subject to other terms and conditions thereof. We may also issue bonds with stock acquisition rights (shinkabu yoyakuken-tsuki shasai). The issuance of stock acquisition rights and bonds with stock acquisition rights may be authorized by executive officers under the authority delegated by the board of directors unless it is made at a “specially favorable” price or under “specially favorable” conditions, as described in “—Voting Rights.”

Record Date

As mentioned above, March 31 is the record date for the payment of annual dividends and the determination of shareholders entitled to vote at the ordinary general meeting of shareholders. September 30 is the record date for the payment of interim dividends. In addition, by a determination by executive officers under the authority delegated by the board of directors and after giving at least two week’s prior public notice, we may at any time set a record date in order to determine the shareholders who are entitled to certain rights pertaining to our stock.

JASDEC is required to give us notice of the names and addresses of our shareholders, the numbers of shares held by them and other relevant information as of such record date promptly after we set each record date.

Acquisition by Us of Common Stock

We may acquire shares of common stock:

1. by way of purchase on any Japanese stock exchange on which the shares of our common stock are listed or by way of tender offer (in either case pursuant to a resolution of the board of directors as long as our non-consolidated annual financial statements and certain documents for the latest fiscal year fairly present our assets and profit and loss, as required by an ordinance of the Ministry of Justice);

2. from a specific shareholder other than any of our subsidiaries (pursuant to a special resolution of a general meeting of shareholders); or

3. from any of our subsidiaries (pursuant to a determination by executive officers under the authority delegated by the board of directors).

In the case of 2. above, any other shareholder may make a request to us to be included as a seller in the proposed purchase, unless the purchase price or any other consideration to be received by the relevant specific

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shareholder will not exceed the last trading price of the shares on the relevant stock exchange on the day immediately preceding the date on which the resolution mentioned in 2. above was adopted (or, if there is no trading in the shares on the stock exchange or if the stock exchange is not open on such day, the price at which the shares are first traded on such stock exchange thereafter).

The total amount of the purchase price of shares of common stock may not exceed the Distributable Amount, as described in “—Distribution of Surplus—Restriction on Distribution of Surplus.”

We may hold the shares of common stock acquired, and may generally transfer or cancel such shares by a determination by executive officers under the authority delegated by the board of directors.

Disposal of Shares of Common Stock Held by Shareholders whose Location is Unknown

We are not required to send notices to a shareholder if notices given by us to such shareholder fail to arrive for five consecutive years or more at its address registered in our register of shareholders or otherwise notified to us.

In the above case, if the relevant shareholder also fails to receive dividends on the shares continuously for five years or more at its address registered in our register of shareholders or otherwise notified to us, then we may in general dispose of such shares at their then market price and hold or deposit the proceeds of such disposition on behalf of the relevant shareholder.

Reporting of Substantial Shareholders

The Financial Instruments and Exchange Act and its related regulations require any person who has become, beneficially and solely or jointly, a holder of more than 5% of the total issued shares of capital stock of a company that is listed on any Japanese stock exchange to file a report with the Director of the relevant Local Finance Bureau of the Ministry of Finance within five business days. With certain exceptions, a similar report must also be filed in respect of any subsequent change of 1% or more in the holding or of any change in material matters set forth in any previously filed reports. For this purpose, shares issuable to such person upon conversion of convertible securities or exercise of share subscription warrants or stock acquisition rights are taken into account in determining both the number of shares held by the holder and the company’s total issued share capital. Copies of each report must also be furnished to the company issuing the shares and to all the Japanese stock exchanges on which the shares are listed.

There are other reporting requirements under the Banking Act. See “Item 4.B. Information on the Company—Business Overview—Supervision and Regulation—Japan—Examination and Reporting Applicable to Shareholders.”

Holding of Shares of Our Common Stock by Foreign Investors

There are no limitations imposed by the laws of Japan, our articles of incorporation or our other constituent documents on the rights of non-residents or foreign shareholders to hold or exercise voting rights on our shares of common stock or preferred stock.

Transfer of Shares

At present, JASDEC is the only institution that is designated by the relevant authorities as a clearing house which is permitted to engage in the clearing operations of listed shares under the Act on Book-Entry Transfer of Corporate Bonds, Stocks, etc. (Act No. 75 of 2001, including regulations promulgated thereunder; the “Book-entry Act”). Under the clearing system above, in order for any person to hold, sell or otherwise dispose of listed shares, such person must have an account at an account managing institution unless such person has an

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account at JASDEC. “Account managing institutions” are financial instruments business operators (i.e., securities companies), banks, trust companies and certain other financial institutions which meet the requirements prescribed by the Book-entry Act, and only those financial institutions that meet further stringent requirements of the Book-entry Act can open accounts directly at JASDEC. Under the Book-entry Act, any transfer of shares is effected through book entry, and title to the shares passes to the transferee at the time when the transferred number of the shares is recorded at the transferee’s account at an account managing institution. The holder of an account at an account managing institution is presumed to be the legal owner of the shares held in such account. Under the Companies Act and the Book-entry Act, in order to assert shareholders’ rights to which shareholders as of record dates are entitled (such as the rights to vote at a general meeting of shareholders or receive dividends) against us, a shareholder must have its name and address registered in our register of shareholders. Under the clearing system, such registration is made upon our receipt of necessary information from JASDEC. On the other hand, in order to assert shareholders’ rights to which shareholders are entitled regardless of record dates such as minority shareholders’ rights including the right to propose a matter to be considered at a general meeting of shareholders, except for shareholders’ rights to request us to purchase or sell shares constituting less than a full unit (as described in “—Unit Share System”), upon the shareholder’s request, JASDEC shall issue a notice of certain information, including the name and address of such shareholder, to us. Thereafter, such shareholder is required to present us a receipt of the request of the notice in accordance with our share handling regulations. Under the Book-entry Act, the shareholder shall exercise such shareholders’ right within four weeks after the notice above. Non-resident shareholders are required to appoint a standing proxy in Japan or provide a mailing address in Japan. Each such shareholder must give notice of such standing proxy or mailing address to the relevant account managing institution. Such notice will be forwarded to us through JASDEC. Japanese securities companies and commercial banks customarily act as standing proxies and provide related services for standard fees. Notices from us to non-resident shareholders are delivered to such standing proxies or mailing addresses.

Under the clearing system, shares constituting less than one unit are transferable. Under the rules of the Japanese stock exchanges, however, shares constituting less than one unit do not comprise a trading unit, except in limited circumstances, and accordingly may not be sold on Japanese stock exchanges.

Our transfer agent is Mizuho Trust & Banking, located at 2-1, Yaesu 1-chome, Chuo-ku, Tokyo 103-8670, Japan.

The registered holder of deposited shares underlying the ADSs is the depositary for the ADSs. Accordingly, holders of ADSs will not be able to directly assert their shareholders’ rights against us.

Preferred Stock

The following is a summary of information concerning the shares of our preferred stock, including brief summaries of the relevant provisions of our articles of incorporation, our share handling regulations and the Companies Act and certain related legislation, all as currently in effect. The detailed rights of our preferred stock are set forth in our articles of incorporation and the resolutions of our board of directors or a determination by executive officer(s) under the authority delegated by the board of directors relating to the issuance of the relevant series of preferred stock.

General

Under our articles of incorporation, we are authorized to issue 914,752,000 shares of class XI preferred stock, 900,000,000 shares of each of the first to fourth series of class XIV preferred stock (provided that the aggregate number of shares authorized to be issued with respect to the four series of class XIV preferred stock may not exceed 900,000,000 shares), 900,000,000 shares of each of the first to fourth series of class XV preferred stock (provided that the aggregate number of shares authorized to be issued with respect to the four series of class XV preferred stock may not exceed 900,000,000 shares), 1,500,000,000 shares of each of the first

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to fourth series of class XVI preferred stock (provided that the aggregate number of shares authorized to be issued with respect to the four series of class XVI preferred stock may not exceed 1,500,000,000 shares).

As of March 31, 2014, 914,752,000 shares of eleventh series class XI preferred stock were issued.

Preferred Dividends

Payment of annual dividends on shares of common stock is subject to the prior payment on shares of preferred stock. The amount of preferred dividends for each series of the preferred stock is as follows:

• Eleventh series class XI preferred stock bears an annual non-cumulative dividend of ¥20 per share, and in the event we pay an interim dividend, holders are entitled to receive ¥10 per share in preference to common stock.

• Each of the first to fourth series of class XIV preferred stock (currently not in issue) bears an annual non-cumulative dividend of the amount to be determined by resolution of the board of directors or determination by executive officer(s) under the authority delegated by the board of directors at the time of issuance, up to a maximum of ¥100 per share, and in the event we pay an interim dividend, holders are entitled to receive one half of such amount per share in preference to common stock.

• Each of the first to fourth series of class XV preferred stock (currently not in issue) bears an annual non-cumulative dividend of the amount to be determined by resolution of the board of directors or determination by executive officer(s) under the authority delegated by the board of directors at the time of issuance, up to a maximum of ¥100 per share, and in the event we pay an interim dividend, holders are entitled to receive one half of such amount per share in preference to common stock.

• Each of the first to fourth series of class XVI preferred stock (currently not in issue) bears an annual non-cumulative dividend of the amount to be determined by resolution of the board of directors or determination by executive officer(s) under the authority delegated by the board of directors at the time of issuance, up to a maximum of ¥100 per share, and in the event we pay an interim dividend, holders are entitled to receive one half of such amount per share in preference to common stock.

The amount of any preferred interim dividend will be deducted from the preferred dividend payable on preferred stock in respect of the same fiscal year.

No payment of dividends on our preferred stock or any other stock may be made unless we have sufficient Distributable Amount and a resolution to pay such dividend is obtained at the board of directors or at the relevant general meeting of shareholders, as the case may be.

Dividends on our preferred stock are non-cumulative. If the full amount of any dividend is not declared on our preferred stock in respect of any fiscal year, holders of our preferred stock do not have any right to receive dividends in respect of the deficiency in any subsequent fiscal year, and we will have no obligation to pay the deficiency or to pay any interest regardless of whether or not dividends are paid in respect of any subsequent fiscal year. The holders of our preferred stock are not entitled to any further dividends or other participation in or distribution of surplus.

Liquidation Rights

In the event of our voluntary or involuntary liquidation, holders of our preferred stock will be entitled, equally in rank as among themselves and in preference over shares of common stock, to receive a distribution of ¥1,000 per share out of our residual assets upon our liquidation.

Holders of our preferred stock are not entitled to any further dividends or other participation in or distribution of our residual assets upon our liquidation.

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Voting Rights

No holder of preferred stock has a right to receive notice of, or to vote at, a general meeting of shareholders, except as otherwise specifically provided under the Companies Act or other applicable law or our articles of incorporation. Under our articles of incorporation, holders of units of our preferred stock will be entitled to receive notice of, and to vote at, general meetings of shareholders:

• from the commencement of any ordinary general meeting of shareholders if an agenda for approval to declare a preferred dividend is not submitted to such meeting (except in the case where a resolution of the board of directors to pay the preferred dividends is made pursuant to our articles of incorporation between the last day of the business year and the date of such meeting); or

• from the close of any ordinary general meeting of shareholders if a proposed resolution to declare a preferred dividend is not approved at such meeting,

until such time as a resolution of the board of directors to pay the preferred dividends is made pursuant to our articles of incorporation or a resolution of an ordinary general meeting of shareholders declaring a preferred dividend is approved.

A separate resolution of a meeting of the holders of the preferred stock is required in order to approve the following matters which would prejudice the interests of the holders of the relevant preferred stock:

(i) an amendment to the articles of incorporation to add new classes of shares to be issued, alter the terms of the shares or increase the number of authorized number of shares or authorized number of any class of shares, with certain exceptions;

(ii) consolidation or split of shares;

(iii) pro rated allocation of shares or stock acquisition rights to shareholders without any consideration;

(iv) granting pre-emptive rights for new shares or stock acquisition rights to shareholders;

(v) amalgamations or mergers;

(vi) certain corporate splits;

(vii) share exchanges;

(viii) share transfers; and

(ix) other matters set forth in the articles of incorporation.

Such separate resolution is not required when the articles of incorporation so provide, except in the case of (i) above.

A separate resolution of a meeting of the holders of the common stock is also required in cases where the above matters would prejudice the interests of the holders of the common stock.

Under our articles of incorporation, in cases where a matter to be resolved at an ordinary general meeting of shareholders is required to be approved by such separate resolution, the record date for the relevant meeting of the holders of the common stock or the preferred stock, as the case may be, is the same date as the record date for the ordinary general meeting of shareholders, when is March 31 of each year.

Ranking

We will not (unless the requisite sanction has been given by holders of preferred stock) create or issue any other shares ranking, as regards order of participation in the profits or assets of us on a liquidation or otherwise,

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in priority to the preferred stock in issue, but we may issue, without obtaining the consent of holders of the preferred stock in issue, other preferred stock ranking pari passu with the preferred stock in issue as regards the order of such participation in profits or assets of us and carrying such rights as to rates of preferred dividends or terms of conversion as the board of directors may determine, subject to the limitations set forth in our articles of incorporation and the Companies Act.

Acquisition of Preferred Stock

We may, if required, subject to regulatory approval, acquire any shares of the preferred stock then outstanding at any time out of the Distributable Amount (as defined in “—Common Stock—Restriction on Distribution of Surplus”). On or after the date to be determined by a resolution of the board of directors or a determination by executive officer(s) under the authority delegated by the board of directors relating to the issuance of the relevant preferred stock, we may also acquire all or a portion of each series of the first to fourth series of class XV (currently not in issue) or the first to fourth series of class XVI preferred stock (currently not in issue) at the acquisition price to be determined by a resolution of the board of director or a determination by executive officer(s) under the authority delegated by the board of directors relating to the issuance of the relevant preferred stock on the date separately determined by a resolution of the board of director or a determination by executive officer(s) under the authority delegated by the board of directors, without consent of the holders of such preferred stock. When a portion of a certain class of preferred stock is acquired, such acquisition shall be made from each holder thereof in number of shares determined by way of a lot or pro rata allocation.

Stock Splits

Our articles of incorporation provide that no stock split, stock consolidation or free distribution of stock shall be made in respect of the preferred stock unless otherwise provided for in any law or regulation.

Issue of Additional Shares and Pre-emptive Rights

Our articles of incorporation provide that no holder of our preferred stock has any pre-emptive right to subscribe for or purchase shares, stock acquisition rights or bonds with stock acquisition rights in the event of an issuance of additional shares or bonds and that no free distribution of stock acquisition rights may be made to the holders of our preferred stock.

Conversion

Our articles of incorporation provide that holders of class XI, the first to fourth series of class XIV (currently not in issue) or the first to fourth series of class XV (currently not in issue) preferred stock may, at their option, convert their shares to common stock by requesting us to acquire such shares and issue or transfer common stock to them. Other classes of our preferred stock are non-convertible.

Our articles of incorporation also provide that class XI, the first to fourth series of class XIV (currently not in issue) or the first to fourth series of class XV (currently not in issue) preferred stock outstanding on the last day of the acquisition period will be mandatorily acquired by us on the immediately following day (the “mandatory conversion date”) in consideration of shares of common stock of which number shall be calculated at the then-current market price per share of our common stock (the “mandatory conversion price”).

Eleventh series class XI preferred stock may, at the option of the holder thereof, be acquired at any time from July 1, 2008 to June 30, 2016 in consideration of shares of common stock of which number shall be calculated at ¥282.90 per share, subject to anti-dilution adjustments due to, among other things, issuance of new shares of our common stock at issue price below the market price. For the purpose of determining the mandatory conversion price and the conversion price adjusted pursuant to the anti-dilution clause, the market price shall mean the average price of daily closing prices of our common stock on the Tokyo Stock Exchange for the

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30 consecutive trading days commencing on the 45th trading day prior to the mandatory conversion date or the date on which the conversion price after the adjustment becomes effective, respectively. Anti-dilution adjustments are triggered upon an issuance of common stock at prices that are lower than the then current market price, stock splits and free allotments of common stock, and other similar events, so that the impact of these events are properly reflected in the conversion price.

The anti-dilution adjustments will generally be made in accordance with the following formula.

		Number of shares of	Number of shares of common stock                ×	Subscription money per
Conversion	Conversion	common stock            +	to be newly issued	share
price after        =	price before    ×	already issued	Current market price per share
adjustment(1)	adjustment(1)	Number of shares of	Number of shares of
		common stock already    +	common stock to be newly
		issued	issued

Note:

(1) Conversion of the preferred stock is conducted through the acquisition of the relevant shares of preferred stock by us followed by the delivery of the applicable number of shares of common stock. As such, the word “acquisition” is used in lieu of “conversion” in our articles of incorporation.

Acquisition of Preferred Stock without Consideration or in Exchange for Common Stock

In order to enable the relevant preferred stock to meet the criteria for inclusion in Additional Tier 1 capital under the capital adequacy guidelines which was revised by the Financial Services Agency, with effect as from March 31, 2013, to reflect the Basel III rules, the first to fourth series of class XIV (currently not in issue), the first to fourth series of class XV (currently not in issue) and the first to fourth series of class XVI (currently not in issue) preferred stock have the following feature.

In respect of the first and second series of class XIV(currently not in issue), the first and second series of class XV (currently not in issue) and the first and second series of class XVI (currently not in issue) preferred stock, upon the occurrence of an event determined by a resolution of the board of directors or a determination by executive officer(s) under the authority delegated by the board of directors relating to the issuance of the relevant preferred stock as an event where a write-off of the relevant preferred stock or a conversion of the relevant preferred stock into common stock, or financial support or other similar measures taken by a public sector, without which we would become non-viable, is determined to be necessary, we shall mandatorily acquire the relevant preferred stock, in whole, free of consideration, on a date which falls after the occurrence of such event as determined by the resolution of the board of directors or a determination by executive officer(s) under the authority delegated by the board of directors relating to the issuance of the relevant preferred stock and which date shall be separately determined by a resolution of the board of directors or a determination by executive officer(s) under the authority delegated by the board of directors after the issuance of the relevant preferred stock, or a date which falls after the occurrence of the relevant certain event and which date shall be determined by the resolution of the board of directors or a determination by executive officer(s) under the authority delegated by the board of directors relating to the issuance of the relevant preferred stock, giving due consideration to the capital adequacy requirements applicable to us and other factors.

In respect of the third and fourth series of class XIV (currently not in issue), the third and fourth series of class XV (currently not in issue) and the third and fourth series of class XVI (currently not in issue) preferred stock, upon the occurrence of an event determined by a resolution of the board of directors or a determination by executive officer(s) under the authority delegated by the board of directors relating to the issuance of the relevant preferred stock as an event where a write-off of the relevant preferred stock or a conversion of the relevant

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preferred stock into common stock, or financial support or other similar measures taken by a public sector, without which we would become non-viable, is determined to be necessary, we shall mandatorily acquire the relevant preferred stock, in whole, on a date which falls after the occurrence of such event as determined by the resolution of the board of directors or a determination by executive officer(s) under the authority delegated by the board of directors relating to the issuance of the relevant preferred stock and which date shall be separately determined by a resolution of the board of directors or a determination by executive officer(s) under the authority delegated by the board of directors after the issuance of the relevant preferred stock, or a date which falls after the occurrence of the relevant certain event and which date shall be determined by the resolution of the board of directors or a determination by executive officer(s) under the authority delegated by the board of directors relating to the issuance of the relevant preferred stock, giving due consideration to the capital adequacy requirements applicable to us and other factors, and instead, we shall deliver our own common stock to holders of the relevant preferred stock. In this case, the terms of acquisition, including the number of shares of the common stock to be delivered in exchange for the acquisition of one (1) share of the relevant preferred stock, shall be determined by the resolution of the relevant board of directors or the determination by relevant executive officer(s) under the authority delegated by the board of directors relating to the issuance of the relevant preferred stock, giving due consideration to the market price of common stock, the subscription price of the relevant preferred stock and other factors.

10.C. Material Contracts

There were no material contracts entered into by us for the two years preceding the filing of this annual report that were not entered into in the ordinary course of business.

10.D. Exchange Controls

Foreign Exchange and Foreign Trade Act

The Foreign Exchange and Foreign Trade Act of Japan and the cabinet orders and ministerial ordinances incidental thereto, collectively the Foreign Exchange Act, set forth, among other matters, the regulations relating to the receipt by non-residents of Japan of payment with respect to shares to be issued by us and the acquisition and holding of shares by non-residents of Japan and foreign investors, both as defined below. It also applies in some cases to the acquisition and holding of ADSs representing such shares acquired and held by non-residents of Japan and by foreign investors. Generally, the Foreign Exchange Act currently in effect does not affect the right of a non-resident of Japan to purchase or sell ADSs outside Japan for non-Japanese currency.

“Non-residents of Japan” are defined as individuals who are not resident in Japan and corporations whose principal offices are located outside Japan. Generally, the branches and offices of non-resident corporations that are located in Japan are regarded as residents of Japan while the branches and offices of Japanese corporations located outside Japan are regarded as non-residents of Japan.

“Foreign investors” are defined as:

• individuals not resident in Japan;

• judicial persons or other organizations that are organized under the laws of foreign countries or whose principal offices are located outside Japan;

• corporations of which 50% or more of the shares are held by individuals not resident of Japan and/or judicial persons or other organizations that are organized under the laws of foreign countries or whose principal offices are located outside Japan; and

• judicial persons or other organizations, a majority of officers (or a majority of officers having the power of representation) of which are non-resident individuals.

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Dividends and Proceeds of Sales

Under the Foreign Exchange Act, dividends paid on, and the proceeds of sales in Japan of, shares held by non-residents of Japan may in general be converted into any foreign currency and repatriated abroad. The acquisition of our shares by non-residents of Japan by way of a stock split is not subject to any notification or reporting requirements.

Acquisition of Shares

In general, a non-resident of Japan who acquires shares from a resident of Japan is not subject to any prior filing requirement, although the Foreign Exchange Act empowers the Minister of Finance of Japan to require prior approval for any such acquisition in certain limited circumstances. While such prior approval is not required in general, in the case where a resident of Japan transfers shares of a Japanese company for consideration exceeding ¥100 million to a non-resident of Japan, the resident of Japan that transfers the shares is required to report the transfer to the Minister of Finance of Japan within 20 days from the date of the transfer or the date of the payment for such transfer, whichever is later, unless the transfer is made through a bank or financial instruments business operator licensed or registered under Japanese law.

If a foreign investor acquires our shares and, together with parties who have a special relationship with that foreign investor, holds 10% or more of our issued shares as a result of such acquisition, the foreign investor must file a report of such acquisition with the Minister of Finance and any other competent Minister on or before the 15th day of the month following the month in which the acquisition was made, in principle. In certain limited circumstances, however, a prior notification of such acquisition must be filed with the Minister of Finance and any other competent Minister, who may modify or prohibit the proposed acquisition.

Deposit and Withdrawal under American Depositary Facility

The deposit of shares with Mizuho Bank, in its capacity as custodian and agent for the depositary, in Tokyo, the issuance of ADSs by the depositary to a non-resident of Japan in respect of the deposit and the withdrawal of the underlying shares upon the surrender of the ADR are not subject to any of the formalities or restrictions referred to above. However, where as a result of a deposit or withdrawal the aggregate number of shares held by the depositary, including shares deposited with Mizuho Bank as custodian for the depositary, or the holder surrendering the ADR, as the case may be, would be 10% or more of the total outstanding shares, a report will be required, and in specified circumstances, a prior notification may be required, as noted above.

10.E. Taxation

Japanese Taxation

The following is a general summary of major Japanese tax consequences (limited to national tax) to holders of shares of our common stock or ADSs representing shares of our common stock who are non-residents of Japan or non-Japanese corporations without a permanent establishment in Japan, which we refer to as “non-resident holders” in this section. The statements regarding Japanese tax laws set forth below are based on the laws and treaties in force and as interpreted by the Japanese tax authorities as at the date of this Annual Report and are subject to changes in the applicable Japanese laws or tax treaties, conventions or agreements, or interpretations thereof, occurring after that date. This summary is not exhaustive of all possible tax considerations that may apply to a particular investor, and potential investors are advised to satisfy themselves as to the overall tax consequences of the acquisition, ownership and disposition of shares of our common stock or ADSs, including specifically the tax consequences under Japanese law, the laws of the jurisdiction of which they are resident, and any tax treaty, convention or agreement between Japan and their country of residence, by consulting their own tax advisers.

For the purpose of Japanese tax law and the tax treaty between the United States and Japan, a U.S. holder of ADSs will generally be treated as the owner of the shares underlying the ADSs evidenced by the ADRs.

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Generally, a non-resident holder of shares of our common stock or ADSs is subject to Japanese income tax collected by way of withholding on dividends paid by us, and such tax will be withheld prior to payment of dividends. Stock splits are, in general, not a taxable event.

In the absence of any applicable tax treaty, convention or agreement reducing the maximum rate of Japanese withholding tax or allowing exemption from Japanese withholding tax, the rate of Japanese withholding tax applicable to dividends paid by Japanese corporations on their shares of stock to non-resident holders is generally 20.42% under Japanese tax law. However, with respect to dividends paid on listed shares issued by a Japanese corporation (such as shares of our common stock or ADSs) to non-resident holders, other than any individual shareholder who holds 3% or more of the total number of shares issued by the relevant Japanese corporation, the aforementioned 20.42% withholding tax rate is reduced to 15.315% for dividends due and payable on or before December 31, 2037. Due to the imposition of a special additional withholding tax (2.1% of the original withholding tax amount) to secure funds for reconstruction from the Great East Japan Earthquake, the original withholding tax rate of 15% and 20%, as applicable, has been effectively increased, respectively, to 15.315% and 20.42%, during the period beginning on January 1, 2013 and ending on December 31, 2037.

Under the income tax treaty between the United States and Japan, the maximum rate of Japanese withholding tax which may be imposed on dividends paid to a qualified United States resident eligible to enjoy treaty benefits that is either a corporation owning, directly or indirectly, less than 10% of the voting stock of a Japanese corporation or an individual is generally reduced to 10% of the gross amount actually distributed, except where such United States resident conducts business in Japan through a permanent establishment situated therein and the holding in respect of which the dividends are paid is effectively connected with such permanent establishment. Dividends paid to pension funds which are qualified United States residents eligible to enjoy treaty benefits are exempt from Japanese income taxation by way of withholding or otherwise unless such dividends are derived from the carrying on of a business, directly or indirectly, by such pension funds. Under Japanese tax law, any reduced maximum rate applicable under a tax treaty shall be available when such maximum rate is below the rate otherwise applicable under the Japanese tax law referred to in the preceding paragraph with respect to the dividends to be paid by us on shares of our common stock or ADSs. A non-resident holder of shares of our common stock who is entitled, under any applicable tax treaty, to a reduced rate of Japanese withholding tax, or exemption therefrom, as the case may be, is required to submit an Application Form for Income Tax Convention Regarding Relief from Japanese Income Tax and Special Income Tax for Reconstruction on Dividends (together with any other required forms and documents) in advance, through the withholding agent, to the relevant tax authority before payment of dividends. A standing proxy for a non-resident holder may provide such application service. In addition, a certain simplified special filing procedure is available for non-resident holders to claim treaty benefits of exemption from or reduction of Japanese withholding tax, with respect to dividends paid on or after January 1, 2014, by submitting a Special Application Form for Income Tax Convention Regarding Relief from Japanese Income Tax and Special Income Tax for Reconstruction on Dividends of Listed Stocks (together with any other required forms and documents). With respect to ADSs, this reduced rate or exemption will be applicable to non-resident holders of ADSs if the depositary or its Agent submits two Application Forms (one before payment of dividends and the other within eight months after the record date concerning such payment of dividends ), together with certain other documents. To claim this reduced rate or exemption, non-resident holders of ADSs will be required to file a proof of taxpayer status, residence and beneficial ownership, as applicable, and to provide other information or documents as may be required by the depositary. Non-resident holders who are entitled, under any applicable tax treaty, to a reduced rate of Japanese withholding tax below the rate otherwise applicable under Japanese tax law, or exemption therefrom, as the case may be, but fail to submit the required application in advance may nevertheless be entitled to claim a refund from the relevant Japanese tax authority of withholding taxes withheld in excess of the rate under an applicable tax treaty (if such non-resident holders are entitled to a reduced treaty rate under the applicable tax treaty) or the full amount of tax withheld (if such non-resident holders are entitled to an exemption under the applicable tax treaty), as the case may be, by complying with a certain subsequent filing procedure.

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We do not assume any responsibility to ensure withholding at the reduced rate, or exemption therefrom, for non-resident holders who would be so eligible under an applicable tax treaty but where the required procedures as stated above are not followed.

Gains derived from the sale or other disposition of shares of our common stock or ADSs outside Japan by a non-resident holder, who is a portfolio investor, are not, in general, subject to Japanese income tax or corporation tax.

Any deposits or withdrawals of shares of our common stock by a non-resident holder in exchange for ADSs are, in general, not subject to Japanese income or corporation tax.

Japanese inheritance and gift taxes, at progressive rates, may be payable by an individual who has acquired our shares of our common stock or ADSs from an individual, as a legatee, heir or donee, even if none of the acquiring individual, the decedent or the donor is a Japanese resident.

U.S. Taxation

The following sets forth the material United States federal income tax consequences of the ownership of shares and ADSs as of the date hereof. The discussion set forth below is applicable to U.S. holders (as defined below) (i) who are residents of the United States for purposes of the current income tax treaty between Japan and the United States (the “Treaty”), (ii) whose shares or ADSs are, for purposes of the Treaty, neither effectively connected with nor attributable to a permanent establishment in Japan and (iii) who otherwise qualify for the full benefits of the Treaty.

The following summary is not a complete analysis or description of all potential U.S. federal income tax consequences to a particular U.S. holder. It does not address all U.S. federal income tax considerations that may be relevant to all categories of potential purchasers, certain of which (such as banks or other financial institutions, insurance companies, dealers in securities or currencies, tax-exempt entities, non-U.S. persons, persons holding a share or an ADS as part of a “straddle,” “hedge,” conversion or integrated transaction, partnerships or other pass-through entities for U.S. federal income tax purposes, traders in securities who have elected the mark-to-market method of accounting for their securities, regulated investment companies, real estate investment trusts, holders whose “functional currency” is not the U.S. dollar, holders liable for alternative minimum tax and holders of 10% or more of our voting shares) are subject to special tax treatment. This summary does not address any foreign, state, local or other tax consequences of investments in our shares or ADSs.

This summary addresses only shares or ADSs held as capital assets.

As used herein, a “U.S. holder” is a beneficial owner of shares or ADSs, as the case may be, that is, for U.S. federal income tax purposes:

• an individual citizen or resident of the United States;

• a corporation (or other entity treated as a corporation for U.S. federal income tax purposes) created or organized in or under the laws of the United States or any political subdivision thereof;

• an estate, the income of which is subject to U.S. federal income tax regardless of its source; or

• a trust if it (1) is subject to the primary supervision of a court within the United States and the control of one or more U.S. persons as described in Section 7701(a)(30) of the Code or (2) has a valid election in effect under applicable U.S. Treasury regulations to be treated as a U.S. person.

If a partnership holds shares or ADSs, the tax treatment of a partner will generally depend on the status of the partner and the activities of the partnership. If you are a partner of a partnership holding shares or ADSs, you should consult your tax advisor.

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The discussion below is based upon the provisions of the Internal Revenue Code of 1986, as amended (the “Code”), and regulations, rulings and judicial decisions thereunder as of the date hereof, and such authorities may be replaced, revoked or modified so as to result in U.S. federal income tax consequences different from those discussed below. In addition, this summary is based, in part, upon representations made by the depositary to us and assumes that the deposit agreement, and all other related agreements, will be performed in accordance with their terms.

We urge U.S. holders to consult their own tax advisors concerning the U.S. federal, state and local and other tax consequences to them of the purchase, ownership and disposition of shares or ADSs.

ADSs

If a U.S. holder holds ADSs, for U.S. federal income tax purposes, such holder will generally be treated as the owner of the underlying shares that are represented by such ADSs. Accordingly, deposits or withdrawals of shares in exchange for ADSs are not subject to U.S. federal income tax.

Taxation of Dividends

Subject to the discussion under “—U.S. Taxation—Passive Foreign Investment Company Rules” below, the gross amount of any distribution received with respect to our shares or ADSs (including amounts withheld to reflect Japanese withholding taxes), will be taxable as dividends, to the extent paid out of the current or accumulated earnings and profits (as determined for U.S. federal income tax purposes). The amount of distribution of property other than cash will be the fair market value of such property on the date of the distribution. Such cash or non-cash income, including withheld taxes, will be includable in a U.S. holder’s gross income as ordinary income on the day actually or constructively received by such U.S. holder in the case of shares, or by the depositary, in the case of ADSs. Such dividends received by a U.S. holder will not be eligible for the “dividends-received deduction” allowed to U.S. corporations in respect of dividends received from other U.S. corporations. To the extent that an amount received by a U.S. holder exceeds such holder’s allocable share of our current and accumulated earnings and profits, such excess will be applied first to reduce such holder’s tax basis in its shares or ADSs, thereby increasing the amount of gain or decreasing the amount of loss recognized on a subsequent disposition of the shares or ADSs. Then, to the extent such distribution exceeds such U.S. holder’s tax basis, such excess will be treated as capital gain. However, we do not expect to keep earnings and profits in accordance with U.S. federal income tax principles. Therefore, U.S. holders should expect that a distribution will generally be treated as a dividend.

The amount of the dividend paid in Japanese yen will be the U.S. dollar value of the Japanese yen payments received. This value will be determined at the spot Japanese yen/U.S. dollar rate on the date the dividend is received by the depositary in the case of U.S. holders of ADSs, or by the shareholder in the case of U.S. holders of shares, regardless of whether the dividend payment is in fact converted into U.S. dollars at that time. If the Japanese yen received as a dividend are not converted into U.S. dollars on the date of receipt, a U.S. holder will have basis in such Japanese yen equal to their dollar value on the date of receipt, and any foreign currency gains or losses resulting from the conversion of the Japanese yen will generally be treated as U.S. source ordinary income or loss.

The maximum rate of withholding tax on dividends paid to you pursuant to the treaty is 10%. As discussed under “—Taxation” above, if the Japanese statutory rate is lower than the maximum applicable Treaty rate, the Japanese statutory rate will be applicable. If the statutory rate applicable to you is higher than the maximum Treaty rate, you will be required to properly demonstrate to us and the Japanese tax authorities your entitlement to the reduced withholding rate under the Treaty. Subject to certain limitations, the Japanese tax withheld may be creditable against the U.S. holder’s U.S. federal income tax liability or may be claimed as a deduction from the U.S. holder’s federal adjusted gross income provided that the U.S. holder elects to deduct all foreign taxes paid on the same taxable year. For foreign tax credit limitation purposes, the dividend will be income from sources

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outside the United States. The limitation on foreign taxes eligible for credit is calculated separately with respect to specific classes of income. For this purpose, dividends we pay will generally constitute “passive category income.” Further, in certain circumstances, if a U.S. holder:

• has held shares or ADSs for less than a specified minimum period during which such U.S. holder is not protected from the risk of loss; or

• is obligated to make payments related to the dividends,

such U.S. holder will not be allowed a foreign tax credit for foreign taxes imposed on dividends paid on shares or ADSs. The rules governing U.S. foreign tax credits are very complex and U.S. holders should consult their tax advisors regarding the availability of foreign tax credits under their particular circumstances.

With respect to non-corporate U.S. investors, certain dividends received from a qualified foreign corporation may be subject to reduced rates of taxation. A qualified foreign corporation includes a corporation that is eligible for the benefits of a comprehensive income tax treaty with the United States which the U.S. Treasury Department determines to be satisfactory for these purposes and which includes an exchange of information provision. The U.S. Treasury Department has determined that the Treaty meets these requirements. In addition, it is expected that we will be eligible for the benefits of the Treaty. A foreign corporation is also treated as a qualified foreign corporation with respect to individuals paid by that corporation on shares (or ADSs backed by such shares) that are readily tradable on an established securities market in the United States. United States Treasury Department guidance indicates that our ADSs (which are listed on the New York Stock Exchange), but not the shares, are readily tradable on an established securities market in the United States. There can be no assurance that our ADSs will be considered readily tradable on an established securities market in later years. Non-corporate holders who do not meet a minimum holding period requirement during which they are not protected from a risk of loss or that elect to treat the dividend income as “investment income” pursuant to Section 163(d)(4) of the Code will not be eligible for the reduced rates of taxation. In addition, the rate reduction will not apply to dividends if the recipient of a dividend is obligated to make related payments with respect to positions in substantially similar or related property. This disallowance applies even if the minimum holding period has been met. U.S. holders should consult their own tax advisors regarding the application of the foregoing rules to their particular circumstances.

Taxation of Capital Gains

Subject to the discussion under “—U.S. Taxation—Passive Foreign Investment Company Rules” below, upon a sale or other disposition of shares or ADSs, a U.S. holder will recognize gain or loss in an amount equal to the difference between the U.S. dollar value of the amount realized and the U.S. holder’s tax basis, determined in U.S. dollars, in such shares or ADSs. Such gain or loss will be capital gain or loss and will be long-term capital gain or loss if the U.S. holder’s holding period for such shares or ADSs exceeds one year. A U.S. holder’s tax basis in its shares or ADSs will generally be the cost to the holder of such shares or ADSs. Any such gain or loss realized by a U.S. holder upon disposal of the shares or ADSs will generally be income or loss from sources within the United States for foreign tax credit limitation purposes. The deductibility of capital losses is subject to limitations.

Passive Foreign Investment Company Rules

Based on our projected composition of income and valuation of assets, including goodwill, we do not believe that we will be a passive foreign investment company (“PFIC”) for this year and do not expect to become one in the future, although there can be no assurance in this regard. However, PFIC status is a factual determination that is made annually. Accordingly, it is possible that we may become a PFIC in the current or any future taxable year due to changes in valuation or composition of our income or assets. In addition, this determination is based in part upon certain proposed U.S. Treasury regulations that are not yet in effect (the “Proposed Regulations”) and are subject to change in the future. The Proposed Regulations and other

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administrative pronouncements from the Internal Revenue Service (the “IRS”) provide special rules for determining the character of income and assets derived in the banking business for purposes of the PFIC rules. Although we believe we have adopted a reasonable interpretation of the Proposed Regulations and administrative pronouncements, there can be no assurance that the IRS will follow the same interpretation.

In general, a foreign corporation is considered a PFIC for any taxable year if either:

• at least 75% of its gross income is passive income; or

• at least 50% of the value of its assets is attributable to assets that produce or are held for the production of passive income.

The 50% of value test is based on the average of the value of our assets for each quarter during the taxable year. If we own at least 25% by value of another company’s stock, we will be treated, for purposes of the PFIC rules, as owning the proportionate share of the assets and receiving our proportionate share of the income of that company.

If we are a PFIC for any taxable year during which a U.S. holder holds shares or ADSs, the U.S. holder will be subject to special tax rules with respect to any “excess distribution” that the U.S. holder receives and any gain the U.S. holder realizes from the sale or other disposition (including a pledge) of shares or ADSs. Additionally, non-corporate U.S. holders will not be eligible for reduced rates of taxation on any dividends received from us if we are a PFIC in the taxable year in which such dividends are paid or in the preceding taxable year.

These special tax rules generally will apply even if we cease to be a PFIC in future years. Distributions U.S. holders receive in a taxable year that are greater than 125% of the average annual distributions they received during the shorter of the three preceding taxable years or their holding period for shares or ADSs will be treated as excess distributions. Under these special tax rules:

• the excess distribution or gain will be allocated ratably over the U.S. holder’s holding period for shares or ADSs;

• the amount allocated to the current taxable year, and any taxable year prior to the first taxable year in which we were a PFIC, will be treated as ordinary income; and

• the amount allocated to each other year will be subject to tax at the highest tax rate in effect for that year, and the interest charge generally applicable to underpayments of tax will be imposed on the resulting tax attributable to each such year.

Alternatively, a U.S. holder could make a mark-to-market election provided that shares or ADSs are regularly traded on a qualified exchange. Under current law, the mark-to-market election may be available to U.S. holders of ADSs because the ADSs are listed on the New York Stock Exchange which constitutes a qualified exchange, although there can be no assurance that the ADSs will be “regularly traded” for purposes of the mark-to-market election. Under current law, the mark-to-market election may be available to U.S. holders of shares because the shares are listed on the Tokyo Stock Exchange, which constitutes a qualified exchange, although there can be no assurance that the shares will be “regularly traded” for purposes of the mark-to-market election. In addition, a U.S. holder of shares in a PFIC can sometimes avoid the rules described above by electing to treat the company as a “qualified electing fund” under Section 1295 of the Code. This option is not available to U.S. holders of shares because we do not intend to comply with the requirements necessary to permit U.S. holders to make this election.

If a U.S. holder holds shares or ADSs in any year in which we are classified as a PFIC, such holder may be required to file IRS Form 8621.

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U.S. holders should consult their own tax advisors concerning the determination of our PFIC status and the U.S. federal income tax consequences of holding shares or ADSs if we are considered a PFIC in any taxable year.

Information Reporting and Backup Withholding

In general, information reporting requirements will apply to dividends in respect of the shares or ADSs or the proceeds from the sale, exchange or redemption of the shares or ADSs paid within the United States, and, in some cases, outside of the United States, to you, unless you are an exempt recipient. In addition, backup withholding tax may apply to those amounts if you fail to provide an accurate taxpayer identification number or fail either to report interest and dividends required to be shown on your U.S. federal income tax returns or make certain certifications. The amount of any backup withholding from a payment to you will be allowed as a refund or credit against your U.S. federal income tax liability, provided you furnish the required information to the IRS.

Certain U.S. holders are required to report information with respect to their investment in shares or ADSs not held in an account maintained by certain financial institution to the IRS. Investors who fail to report required information by attaching a complete IRS Form 8938, Statement of Specified Foreign Financial Assets, on their tax return for each year in which they hold shares or ADSs could become subject to substantial penalties. Potential investors are urged to consult with their own tax advisors regarding the possible implications of these rules on their investment in shares or ADSs.

10.F. Dividends and Paying Agents

Not applicable.

10.G. Statement by Experts

Not applicable.

10.H. Documents on Display

We file annual reports on Form 20-F with, and furnish periodic reports on Form 6-K to, the U.S. Securities and Exchange Commission. These reports, including this annual report on Form 20-F and the exhibits thereto, and other information can be inspected without charge at the Commission’s Public Reference Room at 100 F Street, N.E., Washington, D.C. 20549. You can also obtain copies of such materials by mail, at prescribed fees, from the Commission’s Public Reference Room or from commercial document retrieval services. You may obtain information on the operation of the Commission’s Public Reference Room by calling the Securities and Exchange Commission in the United States at 1-800-SEC-0330. You can also access to the documents filed via the Electronic Data Gathering, Analysis, and Retrieval system on the Commission’s website (http://www.sec.gov).

10.I. Subsidiary Information

Not applicable.

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ITEM 11. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Progress in financial deregulation and internationalization has led to growth in the diversity and complexity of banking operations, exposing financial institutions to various risks, including credit, market operations, information technology, legal, settlement and other risks. We recognize the conducting of operations tailored to the risks and managing such risks as a key issue relating to overall management. In order to implement our business strategy while maintaining our financial stability, we maintain comprehensive risk management and control measures. We maintain basic policies for risk management established by our board of directors that are applicable to the entire Mizuho group. These policies clearly define the kinds of risks to be managed, set forth the organizational structure and provide for the human resources training necessary for appropriate levels of risk management. The policies also provide for audits to measure the effectiveness and suitability of the risk management structure. In line with these basic policies, we maintain various measures to strengthen and enhance the sophistication of our risk management system. All yen figures and percentages in this item are truncated. Accordingly, the total of each column of figures may not be equal to the total of the individual items.

Approach to the Basel Regulatory Framework

The Basel Regulatory Framework, the regulations for international standards of the health of banks, have been revised in light of developments in risk management methods in order to better reflect the actual substance of the risks. We have been calculating capital adequacy ratios based on these regulations, known as “Basel II,” from March 31, 2007, when it was implemented in Japan. Basel II requires the observance of three main points. The first is minimum capital requirements relating to risk which should be maintained by banks. The second includes a supervisory review process with respect to assessment of risks that cannot be fully addressed through minimum capital requirements alone. The third is market discipline allowing for assessment by the market through appropriate disclosure. We have been calculating our capital adequacy ratios by applying the AIRB approach for the calculation of credit risk from March 31, 2009 and the AMA for the calculation of operational risk from September 30, 2009. Due to the strengthening of the Basel II framework, we revised the calculation methods with regard to our securitization products and trading activities from December 31, 2011, when such strengthening was implemented in Japan. In December 2010, the Basel III rules text was issued, pursuant to which the raising of capital requirement levels and the quality of capital were required and risk coverage was enhanced. In Japan, from March 31, 2013, the new minimum capital requirements began to be phased in, and we have been calculating capital adequacy ratios based on the revisions to capital adequacy guidelines published by the Financial Services Agency. We have been identified as a G-SIB by the Financial Stability Board in November 2013. In case we are to be identified as a G-SIB in or after November 2014, the stricter capital requirements will be applied. Based on the Basel III framework, liquidity and leverage ratio regulation is scheduled to be implemented in the future. We are currently preparing for such implementation.

Overview of Risk Management

Risk Management Structure

Each of our subsidiaries adopts appropriate risk management measures for its business based on the size and nature of its risk exposures, while Mizuho Financial Group controls risk management for the Mizuho group as a whole. Mizuho Financial Group regularly receives reports and applications concerning the risk management situation from our principal banking subsidiaries and other core group companies and gives them appropriate instructions concerning risk management. Our principal banking subsidiaries and other core group companies each maintains its own system for managing various types of risk, regularly receiving reports on the status of risk at their respective subsidiaries, and gives them appropriate instructions concerning risk management.

Basic Approach

We classify our risk exposures according to the various kinds of risk, including credit risk, market risk, liquidity risk and operational risk, and manage each type of risk according to its characteristics. In addition to

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managing each type of risk individually, we have established a risk management structure to identify and evaluate overall risk and, where necessary, to devise appropriate responses to keep risk within limits that are managerially acceptable in both qualitative and quantitative terms. In line with the basic policies relating to overall risk management laid down by Mizuho Financial Group, companies within the Mizuho group identify risk broadly and take a proactive and sophisticated approach to risk management, including methodologies for operations that involve exposures to multiple categories of risk such as settlement and trust businesses.

Risk Capital Allocation

We endeavor to obtain a clear grasp of the group’s overall risk exposure and have implemented measures to keep such risks within the group’s financial base in accordance with the risk capital allocation framework. More specifically, we allocate risk capital to our principal banking subsidiaries, including their respective subsidiaries, and other core group companies to control risk within the limits set for each company. We also control risk within managerially acceptable limits by working to ensure that the overall risk we hold on a consolidated basis does not exceed shareholders’ equity and other measures of financial strength. To ensure the ongoing financial health of Mizuho Financial Group, our principal banking subsidiaries and other core group companies, we regularly monitor the manner in which risk capital is being used in order to obtain a proper grasp of the risk profile within this framework. Reports are also submitted to the board of directors and other committees of each company. Risk capital is allocated to Mizuho Bank, Mizuho Trust & Banking and Mizuho Securities by risk category, and is further allocated within their respective business units based on established frameworks.

Stress Testing

We conduct stress testing based on several scenarios, such as economic recession and turmoil in financial markets. We have built a framework in which we use the results of stress testing for making business decisions such as, among other things, the identification of issues for purposes of the managing our business-planning. Our stress testing scenarios are formulated through discussions regarding historical stress events, underlying macroeconomic events and economic outlook, taking into account the probability of the event and its impact on us. We estimate the impact on us by setting parameters such as economic output, stock market and interest rate levels for each scenario.

Credit Risk Management

We define credit risk as the Mizuho group’s exposure to the risk of losses that may be incurred due to a decline in, or total loss of, the value of assets (including off-balance-sheet instruments), as a result of deterioration in obligors’ financial position. We have established the methods and structures necessary for grasping and managing credit risk, which has become increasingly complex due to financial deregulation, internationalization and the growing sophistication of transactions. Mizuho Financial Group manages credit risk for the Mizuho group as a whole. More specifically, we have adopted two different but mutually complementary approaches in credit risk management. The first approach is “credit management,” in which we manage the process for each individual transaction and individual obligor from execution until collection, based on our assessment of the credit quality of the customer. Through this process, we curb losses in the case of a credit event. The second is “credit portfolio management,” in which we utilize statistical methods to assess the potential for losses related to credit risk. Through this process, we identify credit risks and respond appropriately.

Credit Risk Management Structure

Credit Risk Management of the Mizuho Group

Our board of directors determines the Mizuho group’s key matters pertaining to credit risk management. In addition, the portfolio management committee of Mizuho Financial Group discusses and coordinates the basic policies in connection with credit risk management and matters in connection with overall credit portfolio

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management and credit risk monitoring for the Mizuho group. Under the control of the Chief Risk Officer of Mizuho Financial Group, the Risk Management Division and the Credit Risk Management Division jointly monitor, analyze and submit suggestions concerning credit risk and formulate and execute plans in connection with basic matters pertaining to credit risk management.

Credit Risk Management at Our Principal Banking Subsidiaries and Other Core Group Companies

Our principal banking subsidiaries and other core group companies manage their credit risk according to the scale and nature of their exposures in line with basic policies set forth by Mizuho Financial Group. The board of directors of each company determines key matters pertaining to credit risk management. Their respective business policy committees are responsible for discussing and coordinating overall management of their individual credit portfolios and transaction policies towards obligors. The Chief Risk Officer of each principal banking subsidiary and core group company is responsible for matters relating to planning and implementing credit risk management. The credit risk management division of each principal banking subsidiary is responsible for planning and administering credit risk management and conducting credit risk measuring and monitoring, and such division regularly presents reports regarding its risk management situation to Mizuho Financial Group. Each credit division determines policies and approves/disapproves individual transactions in terms of credit review, credit management and collection from customers in accordance with the lines of authority set forth by each principal banking subsidiary. In addition each of our principal banking subsidiaries has established internal audit divisions that are independent of the business divisions in order to ensure appropriate credit risk management.

Individual Credit Management

Credit Codes

The basic code of conduct for all of our officers and employees engaged in the credit business is set forth in our credit code. Seeking to fulfill the bank’s public and social role, our basic policy for credit business is determined in light of fundamental principles focusing on public welfare, safety, growth and profitability.

Internal Rating System

One of the most important elements of the risk management infrastructure of our principal banking subsidiaries is the use of an internal rating system that consists of credit ratings and pool allocations. Credit ratings consist of obligor ratings which represent the level of credit risk of the obligor, and transaction ratings which represent the possibility of ultimately incurring losses related to each individual claim by taking into consideration the nature of any collateral or guarantee and the seniority of the claim. In principle, obligor ratings apply to all obligors and are subject to regular reviews at least once a year to reflect promptly the fiscal period end financial results of the obligors, as well as special reviews as required whenever a obligor’s credit standing changes. This enables our principal banking subsidiaries to monitor both individual obligors and the status of the overall portfolio in a timely fashion. Because we consider obligor ratings to be an initial phase of the self-assessment process regarding the quality of our loans and off-balance-sheet instruments, such obligor ratings are closely linked to the obligor classifications and are an integral part of the process for determining the provision for loan losses and charge-offs in our self-assessment of loans and off-balance-sheet instruments.

Pool allocations are applied to small claims that are less than a specified amount by pooling customers and claims with similar risk characteristics and assessing and managing the risk for each such pool. We efficiently manage credit risk and credit screening by dispersing a sufficient number of small claims within each pool. We generally review the appropriateness and effectiveness of our approach to obligor ratings and pool allocations once a year in accordance with predetermined procedures.

Self-assessment, Provision for Loan Losses and Off-Balance-Sheet Instruments and Charge-Offs

We conduct self-assessment of assets to ascertain the status of assets both as an integral part of credit risk management and in preparation for appropriate accounting treatment, including provision for loan losses and

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off-balance-sheet instruments and charge-offs. During the process of self-assessment, obligors are categorized into certain groups taking into consideration their financial condition and their ability to make payments, and credit ratings are assigned to all obligors, in principle, to reflect the extent of their credit risks. The related assets are then categorized into certain classes based on the risk of impairment. This process allows us to identify and control the actual quality of assets and determine the appropriate accounting treatment, including provision for loan losses and off-balance-sheet instruments and charge-offs. Specifically, the credit risk management division of each of our principal subsidiaries is responsible for the overall control of the self-assessment of assets of the respective banking subsidiaries, cooperating with the administrative divisions specified for each type of asset, including loan portfolios and securities, in executing and managing self-assessments.

Credit Review

Prevention of new impaired loans through routine credit management is important in maintaining the quality of our overall loan assets. Credit review involves analysis and screening of each potential transaction within the relevant business division. In case the screening exceeds the authority of the division, the credit division at headquarters carries out the review. The credit division has specialist departments for different industries, business sizes and regions, carries out timely and specialized examinations based on the characteristics of the customer and its market, and provides appropriate advice to the business division. In addition, in the case of obligors with low credit ratings and high downside risks, the business division and credit division jointly clarify their credit policy and in appropriate cases assist obligors at an early stage in working towards credit soundness.

Collection and Disposal of Impaired Loans

With respect to collection and disposal of impaired loans, our specialist unit maintains central control and pursues corporate restructuring or collection efforts, as appropriate, toward taking the impaired loans off-balance. Specifically, we believe that supporting the restructuring efforts of corporations is an important role for financial institutions, and we support corporations undergoing restructuring by reviewing business plans, advising on restructuring methods and utilizing corporate restructuring schemes such as divestitures and mergers and acquisitions, taking advantage of our group-wide resources. These efforts have been steadily producing satisfactory results. In addition, we work on final disposal of impaired loans efficiently and swiftly by conducting bulk sales and by utilizing Mizuho Servicing Co., Ltd., our subsidiary that specializes in performing debt collection services for our group companies. In the case of debt forgiveness, we examine the borrower’s condition carefully and make a determination based on the possible impact on the interests of shareholders and depositors. We provide debt forgiveness as per industry guidelines that are shared among members of the Japanese Bankers Association.

Portfolio Management

Risk Measurement

We use statistical methods to manage the possibility of losses by measuring the expected average loss for a one-year risk horizon (“Expected Loss”) and the maximum loss within a certain confidence interval (“credit VaR”). The difference between expected loss and credit VaR is measured as the credit risk amount (“Unexpected Loss”).

In establishing transaction spread guidelines for credit transactions, we aim to ensure an appropriate return from the transaction in light of the level of risk by utilizing credit cost data as a reference. Also, we monitor our credit portfolio from various perspectives and set guidelines noted below so that losses incurred through a hypothetical realization of the full credit VaR would be within the amount of risk capital and loan loss reserves.

Risk Control Methods

We recognize two types of risk arising from allowing unexpected loss to become too large. One type is “credit concentration risk,” which stems from granting excessive credit to certain individual counterparties or

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corporate groups. The other type is “chain-reaction default risk,” which arises from granting excessive credit to certain, areas, industrial sectors and other groupings. We make appropriate management to control these risks in line with our specific guidelines for each. The individual risk management divisions of our principal banking subsidiaries are responsible for monitoring adherence to these guidelines and reporting to their respective business policy committees.

Market and Liquidity Risk Management

We define market risk as the risk of losses incurred by the group due to fluctuations in interest rates, stock prices and foreign exchange rates. Our definition includes the risk of losses incurred when it becomes impossible to execute transactions in the market because of market confusion or losses arising from transactions at prices that are significantly less favorable than usual. We define liquidity risk as the risk of losses arising from funding difficulties due to a deterioration in our financial position that makes it difficult for us to raise necessary funds or that forces us to raise funds at significantly higher interest rates than usual. Mizuho Financial Group manages market and liquidity risk for the Mizuho group as a whole.

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The following diagram shows our risk management structure:

Market Risk Management Structure

Market Risk Management of the Mizuho Group

Our board of directors determines key matters pertaining to market risk management policies. The ALM & market risk management committee of Mizuho Financial Group broadly discusses and coordinates matters relating to basic asset and liability management policies, risk planning and market risk management and proposes responses to emergencies such as sudden market changes. The Chief Risk Officer of Mizuho Financial Group is responsible for matters relating to market risk management planning and operations.

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The Risk Management Division of Mizuho Financial Group is responsible for monitoring market risk, reports and analyses, proposals, setting limits and guidelines, and formulating and implementing plans relating to market risk management. The Risk Management Division assesses and manages the overall market risk of the Mizuho group. It also receives reports from our principal banking subsidiaries and other core group companies on their market risk management that enable it to obtain a solid grasp of the risk situation, submitting reports to the chief executive officer on a daily basis and to our board of directors and the executive management committee of Mizuho Financial Group on a regular basis.

To manage market risk, we set limits that correspond to risk capital allocations according to the risk profiles of our principal banking subsidiaries and other core group companies and thereby prevent market risk from exceeding our ability to withstand losses based on our financial strength represented by capital, etc. The amount of risk capital allocated to market risk corresponds to VaR and additional costs that may arise in order to close relevant positions. For trading and banking activities, we set limits for VaR and for losses. For banking activities, we set position limits based on interest rate sensitivity as needed.

These limits are discussed and coordinated by the ALM & market risk management committee, discussed further by the executive management committee, then determined by the chief executive officer. Various factors are taken into account including business strategies, historical limit usage ratios, risk-bearing capacity (profits, total capital and risk management systems), profit targets and the market liquidity of the products involved.

Market Risk Management at Our Principal Banking Subsidiaries and Other Core Group Companies

Our principal banking subsidiaries, which account for most of the Mizuho group’s exposure to market risk, have formulated their basic policies in line with the basic policies determined by Mizuho Financial Group. Their boards of directors determine important matters relating to market risk management while their chief executive officers are responsible for controlling market risk. Their respective business policy committees, including their ALM & market risk management committees, are responsible for overall discussion and coordination of market risk management. Specifically, these committees discuss and coordinate matters relating to basic asset and liability management policies, risk planning and market risk management and propose responses to emergencies such as sudden market changes. The Chief Risk Officer of each subsidiary is responsible for matters pertaining to planning and implementing market risk management. Based on a common Mizuho group risk capital allocation framework, the above-mentioned companies manage market risk by setting limits according to the risk capital allocated to market risk by Mizuho Financial Group.

These companies have established specialized company-wide market risk management divisions to provide integrated monitoring of market risk, submit reports, analyses and proposals, set limits and formulate and implement plans relating to market risk management. The risk management divisions of each company submit reports on the status of market risk management to their respective chief executive officers and top management on a daily basis, and to their board of directors and executive management committee on a regular basis. They also provide regular reports to Mizuho Financial Group. To provide a system of mutual checks and balances in market operations, they have established middle offices specializing in risk management that are independent of their front offices, which engage in market transactions, and their back offices, which are responsible for book entries and settlements. When VaR is not adequate to control risk, the middle offices manage risk using additional risk indices, carry out stress tests and set stop loss limits as needed. They monitor their market liquidity risk for individual financial products in the market while taking turnover and other factors into consideration.

Liquidity Risk Management Structure

Liquidity Risk Management of the Mizuho Group

Our liquidity risk management structure is generally the same as the market risk management structure described above. However, the head of the Financial Control & Accounting Group of Mizuho Financial Group is

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additionally responsible for matters relating to planning and running cash flow management operations, while the Financial Planning Division is responsible for monitoring and adjusting the cash flow management situation and for planning and implementing cash flow management. Reports on the cash flow situation are submitted to the ALM & market risk management committee, the executive management committee and the chief executive officer.

We measure liquidity risk using indices pertaining to cash flow, such as limits on funds raised in the market. Limits on liquidity risk are discussed and coordinated by the ALM & market risk management committee, discussed further by the executive management committee and determined by the chief executive officer. We have established classifications for the cash flow conditions affecting the group, ranging from “normal” to “cause for concern” and “critical,” and have established procedures for dealing with cases which are deemed to fall into the “cause for concern” or “critical” categories. In addition, we have established a plan of operations so that we may respond swiftly in emergency situations that affect our cash flow under which we will consider measures such as a reduction in the amount of investments made, an expansion of funding from financial markets and deposits, the sale of investment securities and borrowings from the central bank.

Liquidity Risk Management at Our Principal Banking Subsidiaries and Other Core Group Companies

The liquidity risk management structures of Mizuho Bank, Mizuho Trust & Banking and Mizuho Securities are generally the same as the aforementioned market risk management structures, but the senior executives responsible for risk management are responsible for matters pertaining to planning and conducting liquidity risk management, while the senior executives of the asset and liability management and trading units are responsible for matters pertaining to planning and conducting cash flow management.

The methodologies used for ensuring precise control of liquidity risk include the formulation of management indices pertaining to cash flow, such as limits on funds raised in the market. As with Mizuho Financial Group, the above-mentioned companies have established classifications for the cash flow affecting them, ranging from “normal” to “cause for concern” and “critical,” and have established procedures for cases which are deemed to fall into the “cause for concern” or “critical” categories.

Each subsidiary has adopted stringent controls that call for the submission of reports on liquidity risk management and cash flow management to the ALM & market risk management committee and other business policy committees, the executive management committee and the chief executive officer of each subsidiary.

Value-at-Risk

We use the value-at-risk (the “VaR”) method, supplemented with stress testing, as our principal tool to measure market risk. The VaR method measures the maximum possible loss that could be incurred due to market movements within a certain time period (or holding period) and degree of probability (or confidence interval).

Trading Activities

VaR related to our trading activities is based on the following:

• variance co-variance model for linear risk and Monte-Carlo simulation for non-linear risk, which are simply aggregated to determine total risk;

• confidence interval: one-tailed 99.0%;

• holding period of one day; and

• historical observation period of one year.

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The following tables show the VaR related to our trading activities by risk category for the fiscal years ended March 31, 2012, 2013 and 2014 and as of March 31, 2012, 2013 and 2014:

	Fiscal year ended March 31, 2012						As of March 31, 2012
Risk category	Daily average		Maximum		Minimum
	(in billions of yen)
Interest rate	¥	1.9	¥	2.4	¥	1.4	¥	1.8
Foreign exchange		1.9		2.8		0.7		1.8
Equities		1.1		1.7		0.5		0.5
Commodities		0.0		0.1		0.0		0.0
Total	¥	3.8	¥	4.8	¥	2.8	¥	3.0

	Fiscal year ended March 31, 2013						As of March 31, 2013
Risk category	Daily average		Maximum		Minimum
	(in billions of yen)
Interest rate	¥	1.6	¥	2.2	¥	1.1	¥	1.2
Foreign exchange		2.3		3.4		1.1		2.7
Equities		0.5		0.9		0.1		0.4
Commodities		0.0		0.0		0.0		0.0
Total	¥	3.4	¥	4.6	¥	2.6	¥	3.5

	Fiscal year ended March 31, 2014						As of March 31, 2014
Risk category	Daily average		Maximum		Minimum
	(in billions of yen)
Interest rate	¥	2.0	¥	2.7	¥	1.5	¥	1.6
Foreign exchange		4.1		5.6		1.1		4.8
Equities		1.0		3.1		0.2		0.4
Commodities		0.0		0.0		0.0		0.0
Total	¥	5.7	¥	7.4	¥	3.3	¥	5.4

The following graph shows VaR figures of our trading activities for the fiscal year ended March 31, 2014:

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The following table shows VaR figures of our trading activities for the fiscal years indicated:

	Fiscal years ended March 31,
	2012		2013		2014		Change
	(in billions of yen, except number of cases)
As of fiscal year end	¥	3.0	¥	3.5	¥	5.4	¥	1.8
Maximum		4.8		4.6		7.4		2.8
Minimum		2.8		2.6		3.3		0.6
Average		3.8		3.4		5.7		2.3
The number of cases where profits/losses exceeded VaR		2		4		1		(3	)

Non-trading Activities

The VaR related to our banking activities is based on the same conditions as those of trading activities, but the holding period is one month.

The graph below shows the VaR related to our banking activities excluding our strategically-held equity portfolio for the year ended March 31, 2014:

The following table shows the VaR figures relating to our banking activities for the fiscal years indicated:

	Fiscal years ended March 31,
	2012		2013		2014		Change
	(in billions of yen)
As of fiscal year end	¥	263.7	¥	215.9	¥	281.7	¥	65.8
Maximum		282.5		297.9		300.7		2.7
Minimum		210.3		213.3		186.8		(26.5	)
Average		249.4		246.3		253.5		7.1

VaR is a commonly used market risk management technique. However, VaR models have the following shortcomings:

• By its nature as a statistical approach, VaR estimates possible losses over a certain period at a particular confidence level using past market movement data. Past market movement, however, is not necessarily a good indicator of future events, particularly potential future events that are extreme in nature.

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• VaR may underestimate the probability of extreme market movements.

• The use of a 99.0% confidence level does not take account of, nor makes any statement about, any losses that might occur beyond this confidence level.

• VaR does not capture all complex effects of various risk factors on the value of positions and portfolios and could underestimate potential losses.

We also conduct interest sensitivity analyses of interest risk, our main source of market risk. The following table shows sensitivity to yen interest risk in our banking activities as of the dates indicated. Interest rate sensitivity (10 BPV) shows how much net present value varies when interest rates rise by 10 basis points (0.1%), and it explains the impact of interest rate movements on net present value when short- and long-term interest rates behave differently.

	As of March 31,
	2012			2013			2014			Change
	(in billions of yen)
Up to one year	¥	(10	)	¥	(7	)	¥	(2	)	¥	4
From one to five years		(54	)		(56	)		(47	)		9
Over five years		(24	)		(35	)		(12	)		22
Total	¥	(89	)	¥	(99	)	¥	(62	)	¥	36

Stressed Value-at-Risk

The stressed value-at-risk (“stressed VaR”) measurement is based on a continuous 12-month period of significant financial stress.

Stressed VaR related to our trading activities is based on the following:

• variance co-variance model for linear risk and Monte-Carlo simulation for non-linear risk, which are simply aggregated to determine total risk;

• confidence interval: one-tailed 99.0%;

• holding period of one day; and

• historical observation period of one year of significant financial stress.

The following table shows stressed VaR figures of our trading activities for the fiscal years indicated:

	Fiscal years ended March 31,
	2012		2013		2014		Change
	(in billions of yen)
As of fiscal year end	¥	6.8	¥	9.2	¥	12.6	¥	3.4
Maximum		10.5		12.0		15.3		3.3
Minimum		5.0		5.0		8.3		3.2
Average		7.4		8.0		11.6		3.6

Note: Maximum, minimum and average figures of 2012 in the above table have been calculated for the period from October 1, 2011 to March 31, 2012.

Strategically-held Equity Portfolio Management Activities

We take the market risk management approach with use of VaR and risk indices for strategically-held equity portfolio management activities as well as for trading activities and non-trading activities. The risk index for

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strategically-held equity portfolio management for the fiscal year ended March 31, 2014, consisting of the sensitivity of the strategically-held equity portfolio to a 1% change in the equity index of TOPIX, was ¥30.0 billion.

Back Testing and Stress Testing

In order to evaluate the effectiveness of market risk measurements calculated using the value-at-risk method, we carry out regular back tests to compare value-at-risk with assumptive profits and losses. Assumptive profits and losses accounts for general market risk. The graph below shows daily value-at-risk of trading activities for the fiscal year ended March 31, 2014 and the corresponding paired distribution of profits and losses. We had one case where profits or losses exceeded value-at-risk during the period. In addition, we conduct evaluations of the assumptions related to the value-at-risk models. Based on the number of times profits or losses exceeded VaR through back testing and the results of the evaluation of the model assumptions, we will make adjustments to the models as appropriate. Changes to fundamental portions of the VaR models are subject to the approval of our Chief Risk Officer.

Note: We conduct our back testing and assess the number of cases where profits/losses exceed VaR based on a 250 business day year. The expected average number of instances where one-day trading profits and losses exceeded VaR at the 99% confidence level is five.

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Because the value-at-risk method is based on statistical assumptions, we conduct stress testing to simulate the levels of losses that could be incurred in cases where the market moves suddenly to levels that exceed these assumptions. The stress testing methods we use include the calculation of losses on the basis of the largest fluctuations occurring over a period of more than five years and the calculation of losses based on market fluctuations occurring during historical market events. In addition, we conduct stress testing based on a sharp drop in the price of securitization and other products due to diminished market liquidity. The table below shows the assumed maximum loss results of stress testing in trading activities using the methods described above:

Assumed maximum loss results	As of March 31, 2014
	(in billions of yen)
Assumed maximum loss result calculated by stress testing (holding period: one month)	¥	97.9
Assumed maximum loss result calculated by stress testing based on a sharp drop in the price of securitization and other products due to diminished market liquidity (holding period: one year)		10.2

Outlier Criteria

As part of the capital adequacy requirements under BIS Regulations, the losses arising from a banking book in hypothetical interest rate shock scenarios under certain stress conditions are calculated and compared with Broadly-defined capital. If the interest rate risk of the banking book leads to an economic value decline of more than 20% of Broadly-defined capital, we will be deemed an “outlier” and may be required to reduce the banking book risk or adopt other responses. We measure losses arising from our banking book each month as a part of our stress tests.

The table below shows the results of calculations of losses in the banking book in cases where interest rate fluctuations occur under stress conditions. The results of calculations of losses in the banking book show that they are 4.4% of broadly-defined capital. Because the amount of risk on the banking book is therefore well under the 20% threshold and within controllable limits, we do not fall under the “outlier” category. The loss ratio to capital decreased from the previous fiscal year due mainly to the reduction of interest rate risk.

Results of calculations under the outlier framework	Amount of loss		Broadly-defined capital		Loss ratio to capital
	(in billions of yen, except percentages)
As of March 31, 2012	¥	483.2	¥	7,775.0		6.2	%
As of March 31, 2013		499.1		8,344.5		5.9
As of March 31, 2014		386.6		8,655.9		4.4
Effect of yen interest rate		78.2
Effect of dollar interest rate		209.3
Effect of euro interest rate		75.7

Notes:

(1) In the above results of calculations of losses, a part of demand deposits without fixed intervals for amending applicable interest rates is deemed core deposits and is treated accordingly in the calculation.

(2) For the interest rate shock scenario used in connection with the above figures, we generate annual rate fluctuation data for five years derived from daily raw historical interest rate data of the past six years and then apply the actual fluctuation data, which show a rise in interest rates, at a 99.0% confidence level to the shock scenario.

Market Risk Equivalent

In order to calculate the amount of capital necessary to meet the capital requirements relating to market risk (the “market risk equivalent”), we apply internal models to calculate general market risk (risks related to factors that apply generally to the market, e.g., interest rates, foreign exchange rates) and the standardized measurement

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method to calculate specific risks (risks other than general market risk, e.g., credit quality and market liquidity of an individual security or instrument). In addition, our internal models are applied to trading transactions with market liquidity based on the relevant holding period.

Under the internal models, the market risk equivalent is expressed as the sum of;

• The higher of (i) VaR on the calculation date and (ii) the average of VaR for the preceding 60 business days (including the calculation date) multiplied by a multiplication factor ranging from 3.00 to 4.00 that is determined based on the number of times VaR is exceeded upon back testing; and

• The higher of (i) stressed VaR on the calculation date and (ii) the average of stressed VaR for the preceding 60 business days (including the calculation date) multiplied by the same multiplication factor as used in the bullet point above.

The following table shows total market risk equivalent as of the dates indicated calculated using the standardized measurement method and internal models:

	As of March 31,
	2013		2014		Change
	(in billions of yen)
Calculated using standardized measurement method	¥	74.0	¥	62.8	¥	(11.1	)
Calculated using internal models		116.3		170.6		54.2
Total market risk equivalent	¥	190.3	¥	233.5	¥	43.1

Note:

VaR and stressed VaR used to calculate market risk equivalent is based on the following:

• variance co-variance model for linear risk and Monte-Carlo simulation for non-linear risk, which are simply aggregated to determine total risk;

• confidence interval: one-tailed 99.0%;

• holding period of 10 days; and

• historical observation period of one year.

Operational Risk Management

We define operational risk as the risk of loss that we may incur resulting from inadequate or failed internal processes, people and systems or from external events. We recognize that operational risk includes information technology risk, operations risk, legal risk, human resources risk, tangible asset risk, regulatory change risk and reputational risk. We have determined risk management policies concerning risk management structures and methods for each kind of risk. Mizuho Bank, Mizuho Trust & Banking, Mizuho Securities and Trust & Custody Services Bank respectively manage operational risk in an appropriate manner pursuant to risk management policies determined by Mizuho Financial Group.

Mizuho Financial Group, Mizuho Bank, Mizuho Trust & Banking, Mizuho Securities and Trust & Custody Services Bank share common rules for data gathering, and we measure operational risk on a regular basis, taking into account possible future loss events and the changes in the business environment and internal management.

We have established and are strengthening management methods and systems to appropriately identify, assess, measure, monitor and control the operational risks which arise from the growing sophistication and diversification of financial operations and developments relating to information technology by utilizing control self-assessments and improving measurement methods.

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Definition of Risks and Risk Management Methods

As shown in the table below, we have defined each component of operational risk and we apply appropriate risk management methods in accordance with the scale and nature of each risk.

	Definition	Principal Risk Management Methods
Information Technology Risk	Risk that customers may suffer service disruptions, or that customers or the group may incur losses arising from system defects such as failures, faults, or incompleteness in computer operations, or illegal or unauthorized use of computer systems.	•    Identify and evaluate the risk by setting specific standards that need to be complied with and implementing measures tailored based on evaluation results to reduce the risk. •    Ensure ongoing project management in systems development and quality control. •    Strengthen security to prevent information leaks. •    Improve effectiveness of emergency responses by improving backup systems and holding drills.
Operations Risk	Risk that customers may suffer service disruptions, as well as the risk that customers or the group may incur losses because senior executives or employees fail to fulfill their tasks properly, cause accidents or otherwise act improperly.	•    Establish clearly defined procedures for handling operations. •    Periodically check the status of operational processes. •    Conduct training and development programs by headquarters. •    Introduce information technology, office automation and centralization for operations. •    Improve the effectiveness of emergency responses by holding drills.
Legal Risk	Risk that the group may incur losses due to violation of laws and regulations, breach of contract, entering into improper contracts or other legal factors.	•    Review and confirm legal issues, including the legality of material decisions, agreements and external documents, etc. •    Collect and distribute legal information and conduct internal training programs. •    Analyze and manage issues related to lawsuits.
Human Resources Risk	Risk that the group may incur losses due to drain or loss of personnel, deterioration of morale, inadequate development of human resources, inappropriate working schedule, inappropriate working and safety environment, inequality or inequity in human resource management or discriminatory conduct.	•    Conduct employee satisfaction surveys. •    Understand the status of vacation days taken by personnel. •    Understand the status of voluntary resignations.

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	Definition	Principal Risk Management Methods
Tangible Asset Risk	Risk that the group may incur losses from damage to tangible assets or a decline in the quality of working environment as a result of disasters, criminal actions or defects in asset maintenance.	•    Manage the planning and implementation of construction projects related to the repair and replacement of facilities. •    Identify and evaluate the status of damage to tangible assets caused by natural disasters, etc., and respond appropriately to such damage.
Regulatory Change Risk	Risk that the group may incur losses due to changes in various regulations or systems, such as those related to law, taxation and accounting.	•    Understand important changes in regulations or systems that have significant influence on our business operations or financial condition in a timely and accurate manner. •    Analyze degree of influence of regulatory changes and establish countermeasures. •    Continuously monitor our regulatory change risk management mentioned above.
Reputational Risk	Risk that the group may incur losses due to damage to our credibility or the value of the “Mizuho” brand when market participants or others learn about, or the media reports on, various adverse events, including actual materialization of risks or false rumors.	•    Establish framework to identify and manage, on an integrated basis, information that may have a serious impact on group management and respond to such risk in a manner appropriate to its scale and nature. •    Swiftly identify rumors and devise appropriate responses depending on the urgency and possible impact of the situation to minimize possible losses.

We also recognize and manage “Information Security Risk” and “Compliance Risk,” which constitute a combination of more than one of the above components of operational risk, as operational risk.

Measurement of operational risk equivalent

Implementation of the AMA

We have adopted the AMA from September 30, 2009, for the calculation of operational risk equivalent in association with capital adequacy ratios based on Basel II. However, we use the Basic Indicator Approach (BIA) for entities that are deemed to be less important in the measurement of operational risk equivalent and for entities that are preparing to implement the AMA. The measurement results under the AMA are used not only as the operational risk equivalent in the calculation of capital adequacy ratios but also as Operational VAR for internal risk management purposes for implementing action plans to reduce operational risk, etc.

Outline of the AMA

• Outline of measurement system

We have established the model by taking account of four elements: internal loss data; external loss data; scenario analysis and business environment; and internal control factors (BEICFs). A statistical approach (one year holding period / one-tailed 99.9 percentile confidence interval) is taken for the calculation of operational risk equivalent, employing both internal loss data (i.e., actually experienced operational loss events) and scenario data to reflect unexperienced potential future loss events in the measurement.

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In the measurement of operational risk equivalent as of March 31, 2014, we did not exclude expected losses and also did not recognize the risk mitigating impact of insurance. In addition, we did not take into account the events related to credit risk in measuring operational risk equivalent.

• Outline of measurement model

Operational risk equivalent is calculated as a simple sum of those related to the seven loss event types defined by Basel II, large-scale natural disasters and litigation. In the measurement of operational risk equivalent as of March 31, 2014, we did not reflect the correlation effects among operational risk related to each of the seven loss event types.

• Operational risk by the loss event type

Loss Distribution (Compound Poisson Distribution) Approach (LDA) is adopted for the calculation of operational risk. LDA is based on the assumption that Poisson Distribution applies to the occurrence frequency of operational risk events, and loss severity is expressed through a separate distribution. Operational risk is calculated for each of the seven loss event types employing both internal loss data, based on our actual experience as operational loss events and scenario data. Scenario data, expressed as numerical values of occurrence frequency and loss severity, reflects external loss data and BEICFs, in order to estimate unexperienced potential future loss events (of low frequency and high severity).

“Frequency Distribution” and “Severity Distribution” are estimated employing the above mentioned internal loss data and scenario data, and Monte-Carlo simulations are then applied to these distributions to measure operational risk. The detailed steps of creation of scenario data are explained later in “Scenario Analysis.”

• Estimation of “Frequency Distribution” and “Loss Severity Distribution”

“Frequency Distribution” is estimated by applying information on occurrence frequency of both internal loss data and scenario data to Poisson Distribution. “Loss Severity Distribution” is generated as the result of combining, through a statistical approach (Extreme Value Theory), of the actual distribution for the low severity distribution portion created by internal loss data and another loss distribution (Log-normal Distribution or Generalized Pareto Distribution) for the high severity distribution portion created by scenario data.

• Operational risk of large-scale natural disasters

Monte-Carlo simulation is applied to the datasets expressed as a combination of the probability of occurrence of large-scale natural disasters and the probable loss amount in case of such occurrence, as opposed to estimating “Frequency Distribution” and “Loss Severity Distribution.”

• Operational risk of litigation

Each litigation is converted into data according to the profile of the individual litigation to which Monte-Carlo simulation is applied, as opposed to estimating “Frequency Distribution” and “Loss Severity Distribution.” In the measurement process, we assume that final decisions will be made on all litigation within one year.

• Verification

We confirm the appropriateness of the measurement model by verifying it, in principle, semi-annually.

Scenario Analysis

• Outline of scenario analysis

In the process of scenario analysis, scenario data is created as numerical values of occurrence frequency and loss severity reflecting external loss data and BEICFs, in order to estimate unexperienced potential future operational risk events (of low frequency and high severity).

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As for external loss data, we refer to data publicly reported by domestic and overseas media, and such data are reflected in the estimation of occurrence frequency and loss severity distribution in the process of scenario analysis. In addition, BEICFs are utilized as indices to adjust occurrence frequency and loss severity distribution in the process of scenario analysis.

We categorize scenario analysis into four approaches in accordance with the characteristics of each loss event type and risk management structures.

Approach	Loss event type(s) to be applied
A	Internal fraud / External fraud / Clients, products and business practices / Execution, delivery and process management
B	Employment practices and workplace safety
C	Damage to physical assets
D	Business disruption and system failure

At Mizuho Financial Group, loss event types to which Approach A is applied account for a considerable amount of operational risk. The detailed process of Approach A is explained below as a typical example of scenario analysis.

• Setting units for scenario analysis

In order to ensure completeness and sufficiency, we set units that are commonly applied across group entities that adopt AMA (the “Group Entities”) by referencing and categorizing risk scenarios recognized through control self-assessment, internal loss data of the Group Entities and external loss data, etc. Then each of the Group Entities selects the unit on which scenario analysis is conducted from the units established on a groupwide basis in accordance with its business activities and operational risk profile.

• Estimation of occurrence frequency

Basic occurrence frequency (once a year) is calculated for each scenario analysis unit. If a certain scenario analysis unit has relevant internal loss data of a pre-determined threshold amount or above, its basic occurrence frequency is calculated based on such data, and if not, the basic occurrence frequency (the occurrence frequency per year of losses at or above a pre-determined threshold) is calculated with reference to the situation of occurrence of internal loss data of less than the threshold amount and/or external loss data. The basic occurrence frequency is then adjusted within a pre-determined range for the purpose of reflecting the most recent BEICFs to determine the final occurrence frequency.

• Estimation of loss severity distribution

In order to estimate loss severity distribution, we use a pre-determined series of severity ranges. Basic loss severity distribution is calculated for each scenario analysis unit as an occurrence ratio (in percentile figures) of loss at each severity range when losses at or above a pre-determined threshold occurred, with reference to transaction amount data, external loss data, etc. Then the basic severity distribution is adjusted, if necessary, from the viewpoint of statistical data processing to determine the final loss severity distribution.

• Creation of scenario data

For each scenario analysis unit, scenario data is generated as a series of combinations of occurrence frequency per year at each severity range, based on the final occurrence frequency and the final loss severity distribution.

Compliance

As the leading Japanese financial services group with a global presence and a broad customer base, we remain conscious of the importance of our social responsibilities and public mission at all times. We define compliance as “the strict observance of all laws and regulations and the pursuit of fair and honest corporate

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activities that conform to the norms accepted by society” and view ongoing compliance as one of the basic principles of sound business management. Each of our group companies maintains its own compliance structure in line with the basic policies established by Mizuho Financial Group.

Compliance Structure

The chief executive officer of Mizuho Financial Group, Mizuho Bank, Mizuho Trust & Banking and Mizuho Securities each generally oversees compliance matters of the respective company, and the chief executive officer, etc., also head their respective compliance committees at which important matters concerning compliance are discussed. The four companies also have individual compliance divisions under a chief compliance officer. These divisions are responsible for compliance planning and implementation and control overall compliance management at the respective companies. At the level of each organizational unit (such as branches and divisions) at the four companies, the head of the unit is responsible for guidance and implementation related to compliance matters within such unit, and the compliance officer or the compliance administrator at each unit reviews the status of compliance.

Other core group companies have also established compliance structures adapted to the characteristics of their respective businesses.

Mizuho Financial Group monitors the status of compliance of the Mizuho group through reports submitted by our principal banking subsidiaries and other core group companies and adopts appropriate responses when necessary.

Compliance at subsidiaries of our principal banking subsidiaries and other core group companies is monitored and managed by their respective parent.

Compliance Activities

We have established the “Mizuho Code of Conduct,” which sets forth clear and concrete standards of ethical behavior, and distributed it to all directors, senior management and employees of the Mizuho group so that they are well aware of its content and act accordingly.

Each of our group companies has also prepared a compliance manual, which serves as a practical guidebook for rigorous compliance enforcement and clarifies the laws and regulations that the group companies must observe in pursuing their business activities and the compliance activities they are required to follow.

We conduct compliance training for directors, senior management and employees so that they are fully acquainted with the contents of the manual.

We monitor the status of compliance levels through self assessments conducted by individual organizational units and monitoring conducted by the compliance division of each company.

Every fiscal year, each of our group companies establishes a compliance program, which contains concrete measures for compliance enforcement such as measures related to the management of the compliance framework, training and assessments. Progress regarding the implementation of the compliance program is monitored every six months.

Internal Audit

Internal audits are designed as an integrated process, independent from other business operations, for evaluating the extent to which internal control achieves its objectives in key areas, including appropriate risk management, efficient and effective business operations, reliable financial reporting and compliance with laws,

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regulations and internal rules. We conduct internal audits from an objective and comprehensive standpoint, independent of operational reporting lines, and offer advice and remedial recommendations in connection with any problems that may be identified. Through this process, internal audits assist the boards of directors of each of our group companies to fulfill their managerial duties efficiently and effectively.

In line with the Basic Policy for Internal Audit established by Mizuho Financial Group, our principal banking subsidiaries and other core group companies conduct internal audits, which include the auditing of their respective subsidiaries. In addition, with respect to the management of risks applicable across the Mizuho group, we coordinate internal audits throughout the group to assess the risk management status of the group as a whole.

Internal Audit Management Structure

Mizuho Financial Group

Our internal audit committee determines all important matters concerning internal audits. The committee is chaired by our President & Group CEO and is independent of our other business operations.

Our internal audit committee monitors and manages internal audits at our principal banking subsidiaries and other core group companies through internal audit reports submitted by such subsidiaries. Our internal audit committee discusses and makes decisions regarding internal audits at our principal banking subsidiaries and other core group companies and submits the results, together with the results of their examination of the internal audit reports, to our board of directors.

Mizuho Bank and Mizuho Trust & Banking

Mizuho Bank and Mizuho Trust & Banking have also established internal audit committees that are independent of their other business operations.

Both banks have established internal audit divisions and credit review divisions (Credit Assessment and Auditing Office at Mizuho Trust & Banking) to conduct internal audits at their respective domestic and overseas business offices, head office divisions and group companies. Specifically, the internal audit divisions assess the suitability and effectiveness of business activities associated with compliance and risk management. The credit review divisions (Credit Assessment and Auditing Office at Mizuho Trust & Banking) audit credit ratings and the status of credit management in addition to auditing the self-assessment of assets to verify the accuracy and suitability of matters deemed necessary to assure the soundness of assets.

Other Core Group Companies

Other core group companies have also established effective and efficient internal audit structures adapted to the characteristics of their respective businesses.

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ITEM 12. DESCRIPTION OF SECURITIES OTHER THAN EQUITY SECURITIES

12.A. Debt Securities

Not applicable.

12.B. Warrants and Rights

Not applicable.

12.C. Other Securities

Not applicable.

12.D. American Depositary Shares

The depositary collects its fees for delivery and surrender of ADSs directly from investors depositing shares or surrendering ADSs for the purpose of withdrawal or from intermediaries acting for them. The table below sets out such fees payable to the depositary:

Persons depositing or withdrawing shares must pay:	For:
$5.00 (or less) per 100 ADSs (or portion of 100 ADSs)	– Execution and delivery of ADRs and the surrender of ADRs
$.02 (or less) per ADS	– Any cash distribution to ADS registered holders
A fee equivalent to the fee that would be payable if securities distributed to you had been shares and the shares had been deposited for issuance of ADSs	– Distribution of securities distributed to holders of deposited securities that are distributed by the depositary to ADS registered holders
Registration or transfer fees	– Transfer and registration of shares on our share register to or from the name of the depositary or its agent when you deposit or withdraw shares
Expenses of the depositary	– Cable, telex and facsimile transmissions expenses (as are expressly provided in the deposit agreement) – Converting foreign currency to U.S. dollars
Taxes and other governmental charges	– As necessary
Any other charge incurred by the depositary or its agents in connection with the servicing of the deposited securities	– As necessary

The Bank of New York Mellon (“BNYM”), as depositary, has agreed to reimburse us annually for expenses related to the administration and maintenance of the depositary receipt facility including, but not limited to, investor relations expenses, legal fees, New York Stock Exchange continue listing fees or any other direct or non-direct depositary receipt program related expenses. There are limits on the amount of expenses for which the depositary will reimburse us, and the terms and conditions of the annual reimbursement are subject to be reviewed by us and BNYM on an annual basis. In the fiscal year ended March 31, 2014, the depositary reimbursed us $75,000 as portion of our investor relations expenses and legal fees.

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PART II

ITEM 13. DEFAULTS, DIVIDEND ARREARAGES AND DELINQUENCIES

None.

ITEM 14. MATERIAL MODIFICATIONS TO THE RIGHTS OF SECURITY HOLDERS AND USE OF PROCEEDS

None.

ITEM 15. CONTROLS AND PROCEDURES

Disclosure Controls and Procedures

We carried out an evaluation under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934) as of March 31, 2014. There are inherent limitations to the effectiveness of any system of disclosure controls and procedures, including the possibility of human error and the circumvention or overriding of the controls and procedures. Accordingly, even effective disclosure controls and procedures can only provide reasonable, not absolute, assurance of achieving their control objectives. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. Based upon the evaluation referred to above, our Chief Executive Officer and Chief Financial Officer concluded that the design and operation of our disclosure controls and procedures as of March 31, 2014 were effective to provide reasonable assurance that information required to be disclosed in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms.

Management’s Annual Report on Internal Control over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as defined in Rule 13a-15(f) under the Securities Exchange Act of 1934. Our internal control over financial reporting is designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with applicable generally accepted accounting principles. Our internal control over financial reporting includes those policies and procedures that:

(i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of our assets;

(ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that our receipts and expenditures are being made only in accordance with authorizations of management and directors; and

(iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of our assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Our management evaluated the effectiveness of our internal control over financial reporting as of March 31, 2014 based on the criteria established in the original “Internal Control—Integrated Framework” issued by the Committee of Sponsoring Organizations of the Treadway Commission (1992 framework) (COSO). Based on the evaluation, management has concluded that we maintained effective internal control over financial reporting as of March 31, 2014.

191

Our independent registered public accounting firm, Ernst & Young ShinNihon LLC has issued an attestation report on our internal control over financial reporting as of March 31, 2014, which appears on page F-3.

Attestation Report of the Registered Public Accounting Firm

See the attestation report of our independent registered public accounting firm, Ernst & Young ShinNihon LLC, which appears on page F-3.

Changes in Internal Control over Financial Reporting

During the period covered by this annual report, there were no changes in our internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

ITEM 16A. AUDIT COMMITTEE FINANCIAL EXPERT

Our board of directors has determined that Messrs. Kanemitsu Anraku and Hideyuki Takahashi each qualifies as an “audit committee financial expert” as defined in Item 16A of Form 20-F under the Securities Exchange Act of 1934, as amended. In addition, both are determined to be independent as defined under the New York Stock Exchange (“NYSE”) Corporate Governance Standards.

ITEM 16B. CODE OF ETHICS

Mizuho Financial Group has adopted a code of ethics, which is applicable to all directors and executive officers, as well as all managers and other employees of the Company who engage in financial reporting, accounting or disclosure. The code of ethics is included in this annual report as Exhibit 11.

ITEM 16C. PRINCIPAL ACCOUNTANT FEES AND SERVICES

Fees for Services provided by Ernst & Young ShinNihon LLC

The aggregate fees billed by Ernst & Young ShinNihon LLC, our independent registered public accounting firm, and its affiliates, for the fiscal years ended March 31, 2013 and 2014 are presented in the following table:

	Fiscal year ended March 31,
	2013		2014
	(in millions of yen)
Audit fees(1)	¥	4,117	¥	4,364
Audit-related fees(2)		463		383
Tax fees(3)		50		76
All other fees(4)		1		39
Total	¥	4,631	¥	4,862

Notes:

(1) Audit fees include fees related to the audit of U.S. GAAP financial statements as well as Japanese GAAP financial statements used for home-country reporting purposes.

(2) Audit-related fees include fees for services relating to agreed-upon procedures on internal controls, due diligence services related to our securitization business and services related to the implementation of Section 404 of the Sarbanes-Oxley Act.

(3) Tax fees include fees for services relating to the preparation of tax returns and tax advice.

(4) All other fees include fees for services relating to education to improve the financial business knowledge of our employees.

192

Pre-Approval Policies and Procedures

We established the pre-approval policies and procedures required by the Sarbanes-Oxley Act on April 1, 2006. Under the procedures, Mizuho Financial Group and its subsidiaries must apply to our audit committee members for pre-approval before entering into an agreement regarding audit and permitted non-audit services with Ernst & Young ShinNihon LLC.

We follow two types of pre-approval policies and procedures:

General pre-approval	General pre-approval is required for services which are expected to be performed during a given fiscal year. Our audit committee reviews the specific maximum fee amount for new services and the maximum amount of increase/decrease from previous fee amounts for the same type of services as those performed in the past and authorizes pre-approval at the beginning of each fiscal year.
Specific pre-approval	For those services which have not been approved pursuant to the general pre-approval procedure, specific pre-approval by our audit committee members is required prior to each engagement. With respect to such services, two full-time audit committee members must provide pre-approval and report such pre-approval at the monthly meeting of the audit committee.

ITEM 16D. EXEMPTIONS FROM THE LISTING STANDARDS FOR AUDIT COMMITTEES

Not applicable

193

ITEM 16E. PURCHASE OF EQUITY SECURITIES BY THE ISSUER AND AFFILIATED PURCHASERS

The following table sets forth purchases of our common stock by us and our affiliated purchasers during the fiscal year ended March 31, 2014:

	Total number of shares purchased		Average price paid per share		Total number of shares purchased as part of publicly announced plans or programs		Maximum number of shares that may yet be purchased under the plans or programs
April 1 to April 30, 2013		4,738	¥	211		—		—
May 1 to May 31, 2013		5,008		217		—		—
June 1 to June 30, 2013		2,765		193		—		—
July 1 to July 31, 2013		9,370		215		—		—
August 1 to August 31, 2013		5,046		209		—		—
September 1 to September 30, 2013		3,982		214		—		—
October 1 to October 31, 2013		5,590		208		—		—
November 1 to November 30, 2013		5,089		212		—		—
December 1 to December 31, 2013		13,768		213		—		—
January 1 to January 31, 2014		7,299		229		—		—
February 1 to February 28, 2014		4,739		215		—		—
March 1 to March 31, 2014		5,078		207		—		—
Total		72,472	¥	213		—		—

Note:

(1) A total of 72,472 shares were purchased other than through a publicly announced plan or program during the fiscal year ended March 31, 2014, due to our purchase of shares constituting less than one (1) unit from registered holders of shares constituting less than one (1) unit at the current market price of those shares.

ITEM 16F. CHANGE IN REGISTRANT’S CERTIFYING ACCOUNTANT

None.

ITEM 16G. CORPORATE GOVERNANCE

Our corporate governance practices are governed by applicable Japanese law, specifically the Companies Act and Financial Instruments and Exchange Act of Japan, and our Articles of Incorporation and Corporate Governance Guidelines. We transformed ourselves from a Company with Board of Auditors to a Company with Committees as of June 24, 2014.

Because our shares are registered with the U.S. Securities and Exchange Commission and are listed on the New York Stock Exchange (“NYSE”), we are also subject to corporate governance requirements applicable to NYSE-listed foreign private issuers. NYSE-listed companies that are foreign private issuers meeting certain criteria are permitted to follow home country practices in lieu of certain provisions of Section 303A, and we are relying on this exemption.

A NYSE-listed foreign private issuer is required to provide to its U.S. investors a brief, general summary of the significant differences of corporate governance practices that differ from U.S. companies under NYSE listing standards. The following is a summary of the significant ways in which our corporate governance practices differ from NYSE listing standards followed by U.S. companies:

• A NYSE-listed U.S. company is required to have a majority of directors that meet the independence requirements under Section 303A of the NYSE’s Listed Company Manual.

194

The Companies Act does not require us to have a majority of “independent” directors on our board; rather, it requires us to have a majority of “outside” directors on each of the Nominating Committee, Compensation Committee and Audit Committee, each established as a committee, pursuant to the requirements that apply to a Company with Committees. An outside director is defined under the Companies Act as a director who does not currently assume, and has never assumed, the position of executive director, executive officer, or employee, including manager of the company or its subsidiaries. In addition to the requirements under the Companies Act, our independence standards for outside directors set forth additional independence requirements on a voluntary basis. Such additional requirements include, but are not limited to, restrictions against persons that are related to a principal business counterparty of ours, entities to which we are a principal business counterparty, entities that receive more than a specified amount of donations from us, entities to which directors have been transferred from us, our accounting auditor, and law firms and consulting firms that receive more than a specified amount of fees from us, as well as close relatives of our directors and officers and persons who otherwise are likely to give rise to consistent substantive conflicts of interest in relation to general shareholders. We may, however, appoint a person as our outside director who does not satisfy the additional independence requirements but who we believe to be suitable for the position with sufficient independence in consideration of such person’s character and insight, provided that we externally provide an explanation as to the reason we believe such person qualifies as an outside director with sufficient independence.

Currently, we have six outside directors among our thirteen directors.

• A NYSE-listed U.S. company is required to have an audit committee composed entirely of independent directors. Currently, our Audit Committee consists of three outside directors and two internal non-executive directors in compliance with the requirements under the Companies Act, and all such committee members are independent under Rule 10A-3 under the U.S. Securities Exchange Act of 1934 with two members qualified as audit committee financial expert.

• A NYSE-listed U.S. company is required to have a nominating/corporate governance committee and a compensation committee, both of which must be composed entirely of independent directors. We have a Nominating Committee and a Compensation Committee, each currently consisting currently of four outside directors in compliance with the requirements under the Companies Act.

• A NYSE-listed U.S. company must hold regularly scheduled executive sessions where participants are limited to non-executive directors. Under the Companies Act, Japanese corporations are not obliged to hold executive sessions where participants are limited to non-executive directors.

• A NYSE-listed U.S. company must adopt corporate governance guidelines and a code of business conduct and ethics and must post those on its website. While we are not required to adopt such guidelines and code under applicable Japanese law or the rules of stock exchanges in Japan on which we are listed, we established our Corporate Governance Guidelines in June 2014 that sets forth our basic policy, framework, and governing policies regarding our corporate governance system and also maintain the “Mizuho Code of Conduct” as our standard for corporate conduct to be observed by our directors, officers and employees.

195

PART III

ITEM 17. FINANCIAL STATEMENTS

We have elected to provide the financial statements and related information specified in Item 18.

ITEM 18. FINANCIAL STATEMENTS

The information required by this item is set forth in our consolidated financial statements starting on page F-1 of this annual report.

ITEM 19. EXHIBITS

Exhibit Number	Description of Exhibits
1.1	Articles of Incorporation of Mizuho Financial Group, Inc., dated June 24, 2014 (English Translation)
1.2	Regulations of the Board of Directors of Mizuho Financial Group, Inc., as amended on June 24, 2014 (English Translation)
1.3	Share Handling Regulations of Mizuho Financial Group, Inc., dated January 4, 2013 (English Translation)*
2.1	Form of American Depositary Receipt**
2.2	Form of Deposit Agreement among the registrant, The Bank of New York Mellon (formerly The Bank of New York) as Depositary and all owners and holders from time to time of American Depositary Receipts issued thereunder***
8	List of significant subsidiaries of Mizuho Financial Group, Inc.—see “Item 4.C. Information on the Company—Organizational Structure.”
11	Code of Ethics of Mizuho Financial Group, Inc.****
12.1	CEO Certification required by Rule 13a-14(a) (17 CFR 240.13a-14(a)).
12.2	CFO Certification required by Rule 13a-14(a) (17 CFR 240.13a-14(a)).
13.1	Certification required by Rule 13a-14(b) (17 CFR 240.13a-14(b)) and Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. 1350).
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema
101.CAL	XBRL Taxonomy Extension Calculation Linkbase
101.DEF	XBRL Taxonomy Extension Definition Linkbase
101.LAB	XBRL Taxonomy Extension Label Linkbase
101.PRE	XBRL Taxonomy Extension Presentation Linkbase

* Incorporated by reference to our annual report on Form 20-F (No. 001-33098) filed on July 23, 2013.

** Incorporated by reference to our annual report on Form 20-F (No. 001-33098) filed on August 19, 2009.

*** Incorporated by reference to our registration statement on Form 20-F (No. 001-33098) filed on October 19, 2006.

**** Incorporated by reference to our annual report on Form 20-F (No. 001-33098) filed on August 10, 2007.

196

SELECTED STATISTICAL DATA

In preparing the selected statistical data set forth below, foreign activities are defined as business transactions that involve customers residing outside of Japan. However, as the operations of Mizuho Financial Group, Inc. and its subsidiaries (“the MHFG Group” or “the Group”) are highly and globally integrated, the MHFG Group has made certain estimates and assumptions in allocating assets, liabilities, income and expense between domestic and foreign operations. The Group considers domestic and foreign activities determined by such methods to be representative of the Group’s operations.

A-1

I. Distribution of assets, liabilities and equity; interest rates and interest differential

Average balances of balance sheet items, interest and dividend income, interest expense and average yields and rates

The following tables show the MHFG Group’s average balances of balance sheet items, Interest and dividend income, Interest expense, average yields on interest-earning assets, and average rates on interest-bearing liabilities for the fiscal years ended March 31, 2012, 2013 and 2014. Average balances are generally based on a daily average. Month-end or quarter-end averages are used for certain average balances where it is not practicable to obtain applicable daily averages. The average balances determined by such methods are considered to be representative of the MHFG Group’s operations.

	2012								2013								2014
	Average balance			Interest and dividend income		Average yield			Average balance			Interest and dividend income		Average yield			Average balance			Interest and dividend income		Average yield
	(in billions of yen, except percentages)
Assets:
Interest-earning assets:
Interest-bearing deposits in other banks:
Domestic		1,822			2		0.13	%		3,096			3		0.10	%		10,995			12		0.10	%
Foreign		3,509			17		0.46	%		3,600			15		0.42	%		4,878			22		0.45	%
Total		5,331			19		0.35	%		6,696			18		0.27	%		15,873			34		0.21	%
Call loans and funds sold, and receivables under resale agreements and securities borrowing transactions:
Domestic		6,122			11		0.17	%		6,676			11		0.17	%		4,048			8		0.21	%
Foreign		9,082			35		0.39	%		10,226			51		0.50	%		11,961			34		0.28	%
Total		15,204			46		0.30	%		16,902			62		0.37	%		16,009			42		0.26	%
Trading account assets:
Domestic		8,884			25		0.28	%		9,019			15		0.17	%		6,937			24		0.35	%
Foreign		8,855			168		1.91	%		11,352			154		1.36	%		11,780			137		1.16	%
Total		17,739			193		1.09	%		20,371			169		0.83	%		18,717			161		0.86	%
Investments:
Domestic		39,529			206		0.52	%		38,974			191		0.49	%		34,481			155		0.45	%
Foreign		1,639			36		2.18	%		2,045			34		1.73	%		1,910			48		2.52	%
Total		41,168			242		0.59	%		41,019			225		0.55	%		36,391			203		0.56	%
Loans (1):
Domestic		53,770			707		1.31	%		53,222			674		1.27	%		54,230			634		1.17	%
Foreign		11,334			230		2.03	%		14,289			275		1.92	%		17,420			349		2.00	%
Total		65,104			937		1.44	%		67,511			949		1.40	%		71,650			983		1.37	%
Total interest-earning assets:
Domestic		110,127			951		0.86	%		110,987			894		0.81	%		110,691			833		0.75	%
Foreign		34,419			486		1.41	%		41,512			529		1.28	%		47,949			590		1.23	%
Total		144,546			1,437		0.99	%		152,499			1,423		0.93	%		158,640			1,423		0.90	%
Noninterest-earning assets:
Cash and due from banks		1,877								2,158								2,877
Other noninterest-earning assets (2)		19,123								19,109								18,872
Allowance for loan losses		(846	)							(707	)							(686	)
Total noninterest-earning assets		20,154								20,560								21,063
Total average assets		164,700								173,059								179,703

Notes:

(1) Average balances of loans include all nonaccrual loans. The amortized portion of net loan origination fees (costs) is included in interest income on loans.

(2) The fair value carrying amounts of derivative contracts are reported in Other noninterest-earning assets.

A-2

Within total average assets, the percentage attributable to foreign activities was 25.7%, 29.1% and 31.3%, respectively, for the fiscal years ended March 31, 2012, 2013 and 2014.

	2012							2013							2014
	Average balance		Interest expense		Average rate			Average balance		Interest expense		Average rate			Average balance		Interest expense		Average rate
	(in billions of yen, except percentages)
Liabilities and equity:
Interest-bearing liabilities:
Deposits:
Domestic		68,474		64		0.09	%		70,281		57		0.08	%		73,858		53		0.07	%
Foreign		9,878		67		0.68	%		11,700		67		0.58	%		14,695		80		0.55	%
Total		78,352		131		0.17	%		81,981		124		0.15	%		88,553		133		0.15	%
Debentures—Domestic		86		—		0.45	%		—		—		—			—		—		—
Short-term borrowings (1):
Domestic		25,591		43		0.17	%		26,540		42		0.16	%		20,471		29		0.14	%
Foreign		13,248		34		0.25	%		16,653		49		0.29	%		20,598		28		0.13	%
Total		38,839		77		0.20	%		43,193		91		0.21	%		41,069		57		0.14	%
Trading account liabilities:
Domestic		3,833		14		0.38	%		2,986		13		0.44	%		2,836		12		0.42	%
Foreign		892		14		1.58	%		965		11		1.09	%		1,319		19		1.44	%
Total		4,725		28		0.60	%		3,951		24		0.60	%		4,155		31		0.74	%
Long-term debt:
Domestic		8,172		175		2.13	%		8,184		171		2.09	%		9,046		178		1.97	%
Foreign		650		5		0.84	%		733		2		0.40	%		764		3		0.39	%
Total		8,822		180		2.04	%		8,917		173		1.95	%		9,810		181		1.84	%
Total interest-bearing liabilities:
Domestic		106,156		296		0.28	%		107,991		283		0.26	%		106,211		272		0.26	%
Foreign		24,668		120		0.49	%		30,051		129		0.43	%		37,376		130		0.35	%
Total		130,824		416		0.32	%		138,042		412		0.30	%		143,587		402		0.28	%
Noninterest-bearing liabilities (2)		29,477							30,267							30,843
Equity		4,399							4,750							5,273
Total average liabilities and equity		164,700							173,059							179,703
Net interest income and average interest rate spread				1,021		0.67	%				1,011		0.63	%				1,021		0.62	%
Net interest income as a percentage of average total interest-earning assets						0.71	%						0.66	%						0.64	%

Notes:

(1) Short-term borrowings consist of Due to trust accounts, Call money and funds purchased, Payables under repurchase agreements and securities lending transactions, and Other short-term borrowings.

(2) The fair value carrying amounts of derivative contracts are reported in Noninterest-bearing liabilities.

Within total average liabilities, which is the total of interest-bearing liabilities and noninterest-bearing liabilities shown in the above table, the percentage attributable to foreign activities was 21.5%, 24.3% and 27.2%, respectively, for the fiscal years ended March 31, 2012, 2013 and 2014.

A-3

Analysis of net interest income

The following tables show changes in the MHFG Group’s Interest and dividend income, Interest expense, and Net interest income based on changes in volume and changes in rate for the fiscal year ended March 31, 2013 compared to the fiscal year ended March 31, 2012 and the fiscal year ended March 31, 2014 compared to the fiscal year ended March 31, 2013. Changes attributable to the combined impact of changes in rate and volume have been allocated proportionately to the changes due to volume changes and changes due to rate changes.

	Fiscal year ended March 31, 2013 versus fiscal year ended March 31, 2012									Fiscal year ended March 31, 2014 versus fiscal year ended March 31, 2013
	Increase (decrease) due to changes in						Net change			Increase (decrease) due to changes in						Net change
	Volume			Yield						Volume			Yield
	(in billions of yen)
Interest and dividend income:
Interest-bearing deposits in other banks:
Domestic		1			—			1			9			—			9
Foreign		—			(2	)		(2	)		6			1			7
Total		1			(2	)		(1	)		15			1			16
Call loans and funds sold, and receivables under resale agreements and securities borrowing transactions:
Domestic		1			(1	)		—			(5	)		2			(3	)
Foreign		5			11			16			5			(22	)		(17	)
Total		6			10			16			—			(20	)		(20	)
Trading account assets:
Domestic		—			(10	)		(10	)		(3	)		12			9
Foreign		34			(48	)		(14	)		5			(22	)		(17	)
Total		34			(58	)		(24	)		2			(10	)		(8	)
Investments:
Domestic		(3	)		(12	)		(15	)		(22	)		(14	)		(36	)
Foreign		7			(9	)		(2	)		(2	)		16			14
Total		4			(21	)		(17	)		(24	)		2			(22	)
Loans:
Domestic		(7	)		(26	)		(33	)		12			(52	)		(40	)
Foreign		57			(12	)		45			62			12			74
Total		50			(38	)		12			74			(40	)		34
Total interest and dividend income:
Domestic		(8	)		(49	)		(57	)		(9	)		(52	)		(61	)
Foreign		103			(60	)		43			76			(15	)		61
Total		95			(109	)		(14	)		67			(67	)		—

A-4

	Fiscal year ended March 31, 2013 versus fiscal year ended March 31, 2012									Fiscal year ended March 31, 2014 versus fiscal year ended March 31, 2013
	Increase (decrease) due to changes in						Net change			Increase (decrease) due to changes in						Net change
	Volume			Rate						Volume			Rate
	(in billions of yen)
Interest expense:
Deposits:
Domestic		1			(8	)		(7	)		3			(7	)		(4	)
Foreign		10			(10	)		—			16			(3	)		13
Total		11			(18	)		(7	)		19			(10	)		9
Debentures—Domestic		—			—			—			—			—			—
Short-term borrowings:
Domestic		2			(3	)		(1	)		(9	)		(4	)		(13	)
Foreign		9			6			15			5			(26	)		(21	)
Total		11			3			14			(4	)		(30	)		(34	)
Trading account liabilities:
Domestic		(3	)		2			(1	)		—			(1	)		(1	)
Foreign		1			(4	)		(3	)		4			4			8
Total		(2	)		(2	)		(4	)		4			3			7
Long-term debt:
Domestic		—			(4	)		(4	)		17			(10	)		7
Foreign		—			(3	)		(3	)		1			—			1
Total		—			(7	)		(7	)		18			(10	)		8
Total interest expense:
Domestic		—			(13	)		(13	)		11			(22	)		(11	)
Foreign		20			(11	)		9			26			(25	)		1
Total		20			(24	)		(4	)		37			(47	)		(10	)
Net interest income:
Domestic		(8	)		(36	)		(44	)		(20	)		(30	)		(50	)
Foreign		83			(49	)		34			50			10			60
Total		75			(85	)		(10	)		30			(20	)		10

A-5

II. Investment portfolio

The following table shows amortized cost, fair value and net unrealized gains (losses) of available-for-sale and held-to-maturity securities at March 31, 2012, 2013 and 2014:

	2012						2013							2014
	Amortized cost		Fair value		Net unrealized gains (losses)		Amortized cost		Fair value		Net unrealized gains (losses)			Amortized cost		Fair value		Net unrealized gains (losses)
	(in billions of yen)
Available-for-sale securities:
Domestic:
Japanese government bonds		32,629		32,647		18		30,710		30,783		73			22,040		22,056		16
Agency mortgage-backed securities (1)		824		830		6		842		862		20			842		855		13
Corporate bonds and other debt securities		3,653		3,670		17		3,054		3,084		30			2,696		2,717		21
Equity securities (marketable)		1,792		2,751		959		1,598		3,036		1,438			1,648		3,402		1,754
Total domestic		38,898		39,898		1,000		36,204		37,765		1,561			27,226		29,030		1,804
Foreign:
U.S. Treasury bonds and federal agency securities		101		101		—		177		178		1			158		154		(4	)
Other foreign government bonds		444		445		1		596		598		2			719		721		2
Agency mortgage-backed securities (2)		148		150		2		145		144		(1	)		113		106		(7	)
Corporate bonds and other debt securities		606		624		18		603		626		23			599		618		19
Equity securities (marketable)		40		41		1		101		103		2			20		20		—
Total foreign		1,339		1,361		22		1,622		1,649		27			1,609		1,619		10
Total		40,237		41,259		1,022		37,826		39,414		1,588			28,835		30,649		1,814
Held-to-maturity securities:
Domestic:
Japanese government bonds		1,801		1,815		14		3,000		3,020		20			4,040		4,058		18
Corporate bonds and other debt securities		1		1		—		—		—		—			—		—		—
Total domestic		1,802		1,816		14		3,000		3,020		20			4,040		4,058		18
Total		1,802		1,816		14		3,000		3,020		20			4,040		4,058		18

Notes:

(1) All domestic agency mortgage-backed securities are mortgage-backed securities issued by Japan Housing Finance Agency, a Japanese government-sponsored enterprise.

(2) Foreign agency mortgage-backed securities primarily consist of Government National Mortgage Association or Ginnie Mae securities, which are guaranteed by the United States government.

A-6

The following table shows the book values, contractual maturities and weighted average yields of available-for-sale and held-to-maturity debt securities at March 31, 2014. Fair value and amortized cost are the basis of the book value for available-for-sale and held-to-maturity debt securities, respectively. Weighted average yields are calculated based on amortized cost for all debt securities.

	Maturity
	One year or less					After one year through five years					After five years through ten years					After ten years					Total
	Amount		Yield			Amount		Yield			Amount		Yield			Amount		Yield			Amount		Yield
	(in billions of yen, except percentages)
Available-for-sale securities:
Domestic:
Japanese government bonds		5,927		0.05	%		13,882		0.12	%		2,247		0.35	%		—		—	%		22,056		0.13	%
Agency mortgage-backed securities		—		—	%		—		—	%		—		—	%		855		1.38	%		855		1.38	%
Corporate bonds and other debt securities		404		0.44	%		1,390		0.60	%		443		0.75	%		480		2.36	%		2,717		0.91	%
Total domestic		6,331		0.08	%		15,272		0.16	%		2,690		0.42	%		1,335		1.73	%		25,628		0.25	%
Foreign:
U.S. Treasury bonds and federal agency securities		44		2.70	%		72		0.82	%		38		0.94	%		—		—	%		154		1.37	%
Other foreign government bonds		508		2.31	%		213		3.81	%		—		—	%		—		—	%		721		2.75	%
Agency mortgage-backed securities		—		—	%		—		—	%		—		—	%		106		2.76	%		106		2.76	%
Corporate bonds and other debt securities		222		2.57	%		258		2.67	%		90		0.83	%		48		0.81	%		618		2.26	%
Total foreign		774		2.41	%		543		2.86	%		128		0.87	%		154		2.27	%		1,599		2.43	%
Total		7,105		0.33	%		15,815		0.26	%		2,818		0.44	%		1,489		1.79	%		27,227		0.38	%
Held-to-maturity securities:
Domestic:
Japanese government bonds		600		0.58	%		3,080		0.27	%		360		0.73	%		—		—	%		4,040		0.36	%
Total domestic		600		0.58	%		3,080		0.27	%		360		0.73	%		—		—	%		4,040		0.36	%
Total		600		0.58	%		3,080		0.27	%		360		0.73	%		—		—	%		4,040		0.36	%

Other than Japanese government bonds and Japanese agency mortgage-backed securities issued by Japan Housing Finance Agency, the MHFG Group did not have any securities of individual issuers with respect to which their aggregate book value exceeded 10% of the Group’s shareholders’ equity at March 31, 2014.

In addition to Available-for-sale securities and Held-to-maturity securities, the MHFG Group’s Investments also include Other investments. See Note 3 “Investments” to the consolidated financial statements included elsewhere in this annual report for information regarding Other investments.

A-7

III. Loan portfolio

Types of loans

The following table shows loans outstanding by domicile and industry of borrower at March 31, 2010, 2011, 2012, 2013 and 2014:

	2010		2011		2012		2013		2014
	(in billions of yen)
Domestic:
Manufacturing		8,065		7,617		7,587		8,079		8,026
Construction and real estate		7,854		7,308		7,271		7,478		7,205
Services		5,153		4,287		3,981		3,972		3,957
Wholesale and retail		5,306		5,314		5,295		5,356		5,351
Transportation and communications		3,237		3,228		3,201		3,147		3,247
Banks and other financial institutions		4,290		3,908		3,501		3,143		3,460
Government and public institutions		5,459		7,154		6,912		6,907		6,734
Other industries (Note)		3,332		3,759		4,319		4,522		4,983
Individuals:
Mortgage loans		11,093		11,436		11,191		11,234		11,187
Other		789		745		719		742		788
Total domestic		54,578		54,756		53,977		54,580		54,938
Foreign:
Commercial and industrial		7,237		6,965		8,146		10,481		12,938
Banks and other financial institutions		1,722		2,588		3,343		4,089		4,610
Government and public institutions		292		453		522		596		883
Other (Note)		32		9		91		199		255
Total foreign		9,283		10,015		12,102		15,365		18,686
Total		63,861		64,771		66,079		69,945		73,624
Less: Unearned income and deferred loan fees—net		78		81		90		112		139
Total loans before allowance for loan losses		63,783		64,690		65,989		69,833		73,485

Note: Other industries of domestic and Other of foreign include trade receivables and lease receivables of consolidated variable interest entities.

There were no concentrations of loans exceeding 10% of total loans which are not disclosed as a category of loans in the table above.

A-8

Maturities and sensitivities of loans to changes in interest rates

The following table shows the maturities of loan portfolio by domicile and industry of borrower at March 31, 2014:

	Maturity
	One year or less		After one year through five years		After five years		Total
	(in billions of yen)
Domestic:
Manufacturing		4,381		2,992		653		8,026
Construction and real estate		2,037		3,294		1,874		7,205
Services		1,798		1,662		497		3,957
Wholesale and retail		3,505		1,600		246		5,351
Transportation and communications		1,041		1,464		742		3,247
Banks and other financial institutions		1,941		1,149		370		3,460
Government and public institutions		5,705		492		537		6,734
Other industries		2,637		1,309		1,037		4,983
Individuals		1,447		2,537		7,991		11,975
Total domestic		24,492		16,499		13,947		54,938
Foreign:
Total foreign		8,384		8,213		2,089		18,686
Total		32,876		24,712		16,036		73,624

Of the above loans due after one year, loans which had floating rates and fixed rates at March 31, 2014 were as follows:

	(in billions of yen)
Floating rates		31,568
Fixed rates		9,180
Total		40,748

A-9

Impaired loans

The MHFG Group considers loans to be impaired when it is probable that the Group will be unable to collect all the scheduled payments of principal and interest when due according to the contractual terms of the loan. The Group classifies loans to special attention, intensive control, substantially bankrupt and bankrupt obligors as impaired loans. Impaired loans include loans past due for 90 days or more and restructured loans that meet the definition of troubled debt restructuring in accordance with ASC 310 “Receivables”. All of the Group’s impaired loans are designated as nonaccrual loans. The Group does not have any loans to borrowers that cause management to have serious doubts as to the ability of such borrowers to comply with the present loan repayment terms for the periods presented other than those already designated as impaired loans. The following table shows the distribution of impaired loans at March 31, 2010, 2011, 2012, 2013 and 2014 by domicile and industry of borrower.

	2010		2011		2012		2013		2014
	(in billions of yen)
Domestic:
Manufacturing		270		309		297		336		229
Construction and real estate		302		265		205		249		138
Services		181		108		119		90		79
Wholesale and retail		159		177		201		173		156
Transportation and communications		139		54		53		59		48
Banks and other financial institutions		21		3		12		14		11
Other industries		1		1		4		5		1
Individuals		201		290		264		235		195
Total domestic		1,274		1,207		1,155		1,161		857
Foreign:
Total foreign		130		116		155		303		288
Total impaired loans		1,404		1,323		1,310		1,464		1,145

Had interest on nonaccrual loans been accrued at the original contractual terms, gross interest income on domestic and foreign nonaccrual loans outstanding during the fiscal year ended March 31, 2014 would have been ¥18 billion and ¥7 billion, respectively. The MHFG group recognized interest income on those domestic and foreign loans of ¥15 billion and ¥5 billion, respectively, in the consolidated statements of income for the fiscal year ended March 31, 2014.

A-10

Cross-border outstandings

Cross-border outstandings are defined as loans (including accrued interest), acceptances, interest-bearing deposits with other banks, other interest-bearing investments and any other monetary assets denominated in Japanese yen or other non-local currencies. This cross-border disclosure is based on the reports to the Bank of Japan required under Japanese foreign exchange-related law. Local currency outstandings are netted out from cross-border outstandings.

The following table sets forth the cross-border outstandings to borrowers in countries with respect to which the total of such outstandings exceeded 0.75% of consolidated total assets at March 31, 2012, 2013 and 2014:

	Public institutions		Banks		Others		Total		% of total assets			Undrawn commitments
	(in billions of yen, except percentages)
2012
United States		4,075		291		3,229		7,595		4.57	%		2,265
Germany		1,669		146		137		1,952		1.17	%		177
2013
United States		5,248		374		3,441		9,063		5.07	%		2,914
Germany		2,078		223		158		2,459		1.38	%		258
2014
United States		3,425		344		3,400		7,169		4.08	%		3,682
France		1,447		283		166		1,896		1.08	%		549
Germany		1,376		97		240		1,713		0.98	%		330
China		107		740		631		1,478		0.84	%		55
Korea		93		406		911		1,410		0.80	%		48

A-11

IV. Summary of loan loss experience

The following table shows an analysis of loan loss experience by domicile and industry of borrower for the fiscal years ended March 31, 2010, 2011, 2012, 2013 and 2014:

	2010			2011			2012			2013			2014
	(in billions of yen, except percentages)
Allowance for loan losses at beginning of fiscal year		870			880			735			683			773
Provision (credit) for loan losses		222			1			(23	)		140			(126	)
Charge-offs:
Domestic:
Manufacturing		17			20			18			25			20
Construction and real estate		56			20			7			5			1
Services		17			20			7			10			3
Wholesale and retail		48			28			14			11			13
Transportation and communications		26			59			2			2			7
Banks and other financial institutions		1			1			1			—			—
Other industries		2			1			2			—			—
Individuals		27			17			19			17			13
Total domestic		194			166			70			70			57
Total foreign		66			19			10			25			8
Total charge-offs		260			185			80			95			65
Recoveries:
Domestic:
Manufacturing		7			7			12			4			6
Construction and real estate		25			14			12			8			5
Services		3			5			4			3			3
Wholesale and retail		5			5			9			3			3
Transportation and communications		1			1			2			1			3
Banks and other financial institutions		4			1			1			1			—
Other industries		—			—			—			—			1
Individuals		3			2			3			4			3
Total domestic		48			35			43			24			24
Total foreign		6			13			9			8			2
Total recoveries		54			48			52			32			26
Net charge-offs		206			137			28			63			39
Others (Note)		(6	)		(9	)		(1	)		13			18
Balance at end of fiscal year		880			735			683			773			626
Ratio of net charge-offs to average loans outstanding		0.31	%		0.22	%		0.04	%		0.09	%		0.05	%

Note: Others include primarily foreign exchange translation.

A-12

The following table shows an allocation of the MHFG Group’s allowance for loan losses by domicile and industry of borrower at March 31, 2010, 2011, 2012, 2013 and 2014:

	2010					2011					2012					2013					2014
	Amount		% of loans in each category to total loans			Amount		% of loans in each category to total loans			Amount		% of loans in each category to total loans			Amount		% of loans in each category to total loans			Amount		% of loans in each category to total loans
	(in billions of yen, except percentages)
Domestic:
Manufacturing		165		12.63	%		155		11.76	%		132		11.48	%		210		11.55	%		177		10.90	%
Construction and real estate		128		12.29	%		104		11.28	%		83		11.00	%		79		10.69	%		51		9.79	%
Services		96		8.07	%		55		6.62	%		51		6.03	%		35		5.68	%		30		5.37	%
Wholesale and retail		102		8.31	%		103		8.20	%		101		8.01	%		84		7.66	%		65		7.27	%
Transportation and communications		95		5.07	%		34		4.98	%		27		4.84	%		26		4.50	%		22		4.41	%
Banks and other financial institutions		29		6.72	%		15		6.03	%		20		5.30	%		28		4.49	%		21		4.70	%
Other industries (Note)		8		13.77	%		12		16.86	%		12		17.00	%		12		16.34	%		5		15.92	%
Individuals		128		18.60	%		150		18.81	%		127		18.03	%		109		17.12	%		95		16.26	%
Mortgage loans		101		17.37	%		120		17.66	%		102		16.94	%		86		16.06	%		74		15.19	%
Other		27		1.23	%		30		1.15	%		25		1.09	%		23		1.06	%		21		1.07	%
Total domestic		751		85.46	%		628		84.54	%		553		81.69	%		583		78.03	%		466		74.62	%
Total foreign		129		14.54	%		107		15.46	%		130		18.31	%		190		21.97	%		160		25.38	%
Total allowance for loan losses		880		100.00	%		735		100.00	%		683		100.00	%		773		100.00	%		626		100.00	%

Note: Other industries include government and public institutions.

A-13

V. Deposits

The following table shows the average amount of, and the average rate on, the following deposit categories for the fiscal years ended March 31, 2012, 2013 and 2014:

	2012					2013					2014
	Average amount		Average rate			Average amount		Average rate			Average amount		Average rate
	(in billions of yen, except percentages)
Domestic offices:
Noninterest-bearing demand deposits		10,307		—	%		10,470		—	%		11,836		—	%
Interest-bearing demand deposits		29,876		0.02	%		31,088		0.02	%		33,399		0.02	%
Deposits at notice (Note)		637		0.02	%		652		0.02	%		668		0.02	%
Time deposits		28,154		0.16	%		28,173		0.14	%		28,751		0.13	%
Certificates of deposit		9,807		0.11	%		10,368		0.11	%		11,040		0.09	%
Foreign offices:
Noninterest-bearing demand deposits		606		—	%		787		—	%		995		—	%
Interest-bearing deposits, principally time deposits		7,783		0.66	%		8,255		0.59	%		10,496		0.60	%
Certificates of deposit		2,095		0.75	%		3,445		0.54	%		4,199		0.41	%
Total		89,265		0.15	%		93,238		0.13	%		101,384		0.13	%

Note: Deposits at notice represent interest-bearing demand deposits which require the depositor to give two or more days notice in advance of withdrawal.

The amounts of total deposits by foreign depositors in domestic offices at March 31, 2012, 2013 and 2014 were ¥504 billion, ¥741 billion and ¥ 726 billion, respectively.

At March 31, 2014, the balance and remaining maturities of time deposits and certificates of deposit issued by domestic offices in amounts of ¥10 million (approximately US$97 thousand at the Federal Reserve Bank of New York’s noon buying rate on March 31, 2014) or more and the balances of those deposits issued by foreign offices in amounts of US$100,000 or more are shown in the following table:

	Time deposits		Certificates of deposit		Total
	(in billions of yen)
Domestic offices:
Due in three months or less		9,979		7,419		17,398
Due after three months through six months		3,716		484		4,200
Due after six months through twelve months		3,425		213		3,638
Due after twelve months		1,231		2		1,233
Total		18,351		8,118		26,469
Foreign offices		9,556		4,638		14,194
Total		27,907		12,756		40,663

A-14

VI. Short-term borrowings

The following table shows certain additional information with respect to the MHFG Group’s short-term borrowings for the fiscal years ended March 31, 2012, 2013 and 2014:

	2012			2013			2014
	(in billions of yen, except percentages)
Due to trust accounts:
Average balance outstanding during the fiscal year		610			618			742
Maximum balance outstanding at any month-end during the fiscal year		651			668			840
Balance at end of fiscal year		560			619			742
Weighted average interest rate during the fiscal year		0.25	%		0.23	%		0.19	%
Weighted average interest rate on balance at end of fiscal year		0.16	%		0.23	%		0.20	%
Call money and funds purchased, and payables under repurchase agreements and securities lending transactions:
Average balance outstanding during the fiscal year		26,066			30,990			32,335
Maximum balance outstanding at any month-end during the fiscal year		28,846			35,508			40,347
Balance at end of fiscal year		25,683			35,074			30,259
Weighted average interest rate during the fiscal year		0.21	%		0.24	%		0.14	%
Weighted average interest rate on balance at end of fiscal year		0.18	%		0.19	%		0.11	%
Other short-term borrowings:
Average balance outstanding during the fiscal year		12,163			11,585			7,992
Maximum balance outstanding at any month-end during the fiscal year		13,950			15,093			9,790
Balance at end of fiscal year		13,950			6,724			6,024
Weighted average interest rate during the fiscal year		0.16	%		0.13	%		0.13	%
Weighted average interest rate on balance at end of fiscal year		0.14	%		0.12	%		0.13	%

A-15

MIZUHO FINANCIAL GROUP, INC.

Index to Consolidated Financial Statements

	Page
Consolidated Financial Statements of Mizuho Financial Group, Inc. and Subsidiaries
Report of Independent Registered Public Accounting Firm		F-2
Consolidated Balance Sheets as of March 31, 2013 and 2014		F-4
Consolidated Statements of Income for the fiscal years ended March 31, 2012, 2013 and 2014		F-6
Consolidated Statements of Comprehensive Income for the fiscal years ended March 31, 2012, 2013 and 2014		F-7
Consolidated Statements of Equity for the fiscal years ended March 31, 2012, 2013 and 2014		F-8
Consolidated Statements of Cash Flows for the fiscal years ended March 31, 2012, 2013 and 2014		F-9
Notes to Consolidated Financial Statements		F-11

F-1

Report of Independent Registered Public Accounting Firm

The Board of Directors and Shareholders

of Mizuho Financial Group, Inc.

We have audited the accompanying consolidated balance sheets of Mizuho Financial Group, Inc. and subsidiaries (the “Company”) as of March 31, 2014 and 2013, and the related consolidated statements of income, comprehensive income, equity and cash flows for each of the three years in the period ended March 31, 2014. These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in all material respects, the consolidated financial position of Mizuho Financial Group, Inc. and subsidiaries at March 31, 2014 and 2013, and the consolidated results of their operations and their cash flows for each of the three years in the period ended March 31, 2014, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), Mizuho Financial Group, Inc. and subsidiaries’ internal control over financial reporting as of March 31, 2014, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (1992 framework) and our report dated July 25, 2014 expressed an unqualified opinion thereon.

/s/ Ernst & Young ShinNihon LLC

Tokyo, Japan

July 25, 2014

F-2

Report of Independent Registered Public Accounting Firm

The Board of Directors and Shareholders

of Mizuho Financial Group, Inc.

We have audited Mizuho Financial Group, Inc. and subsidiaries’ (the “Company”) internal control over financial reporting as of March 31, 2014, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (1992 framework) (the “COSO criteria”). The Mizuho Financial Group, Inc. and subsidiaries’ management is responsible for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management’s Annual Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, Mizuho Financial Group, Inc. and subsidiaries maintained, in all material respects, effective internal control over financial reporting as of March 31, 2014, based on the COSO criteria.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheets of Mizuho Financial Group, Inc. and subsidiaries as of March 31, 2014 and 2013, and the related consolidated statements of income, comprehensive income, equity and cash flows for each of the three years in the period ended March 31, 2014 and our report dated July 25, 2014 expressed an unqualified opinion thereon.

/s/ Ernst & Young ShinNihon LLC

Tokyo, Japan

July 25, 2014

F-3

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

MARCH 31, 2013 AND 2014

	2013			2014
	(in millions of yen)
Assets:
Cash and due from banks (Note 8)		1,268,442			1,696,879
Interest-bearing deposits in other banks (Note 8)		11,215,597			19,037,527
Call loans and funds sold		530,542			468,283
Receivables under resale agreements (Note 29)		9,024,808			8,349,365
Receivables under securities borrowing transactions (Note 29)		5,543,914			5,010,740
Trading account assets (including assets pledged that secured parties are permitted to sell or repledge of ¥12,090,161 million in 2013 and ¥9,445,432 million in 2014) (Notes 8, 28 and 29)		34,066,555			27,408,259
Investments (Notes 3, 8 and 28):
Available-for-sale securities (including assets pledged that secured parties are permitted to sell or repledge of ¥6,549,038 million in 2013 and ¥3,422,827 million in 2014)		39,413,951			30,648,761
Held-to-maturity securities		3,000,403			4,040,083
Other investments		838,135			792,689
Loans (Notes 4, 5, 8 and 28)		69,833,483			73,484,954
Allowance for loan losses		(772,957	)		(626,177	)
Loans, net of allowance		69,060,526			72,858,777
Premises and equipment—net (Note 6)		1,091,989			1,356,594
Due from customers on acceptances		101,590			92,398
Accrued income		276,193			264,380
Goodwill (Note 7)		6,147			11,549
Intangible assets (Note 7)		64,474			58,947
Deferred tax assets (Note 19)		641,777			405,120
Other assets (Notes 4, 8, 12, 20, 22 and 28)		2,601,951			3,198,995
Total assets		178,746,994			175,699,346

The following table presents certain assets of consolidated variable interest entities (“VIE”s), which are included in the consolidated balance sheets above. The assets in the table below include only those assets that can be used to settle obligations of consolidated VIEs on the following page, and are in excess of those obligations.

	2013		2014
	(in millions of yen)
Assets of consolidated VIEs:
Cash and due from banks		15,078		25,762
Interest-bearing deposits in other banks		3,216		10,306
Trading account assets		936,800		1,383,280
Investments		83,762		72,626
Loans, net of allowance		2,428,898		2,639,153
Other		343,522		421,585
Total assets		3,811,276		4,552,712

See the accompanying Notes to the Consolidated Financial Statements.

F-4

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS—(Continued)

MARCH 31, 2013 AND 2014

	2013			2014
	(in millions of yen)
Liabilities and equity:
Deposits (Notes 8 and 9):
Domestic:
Noninterest-bearing deposits		12,138,640			12,751,194
Interest-bearing deposits		74,218,101			73,114,857
Foreign:
Noninterest-bearing deposits		836,177			1,114,729
Interest-bearing deposits		13,028,638			15,629,374
Due to trust accounts (Note 10)		619,271			742,036
Call money and funds purchased		6,126,425			7,194,433
Payables under repurchase agreements (Note 29)		17,451,080			16,797,809
Payables under securities lending transactions (Note 29)		11,496,178			6,265,875
Other short-term borrowings (Note 11)		6,724,100			6,023,972
Trading account liabilities (Notes 28 and 29)		16,768,830			14,824,922
Bank acceptances outstanding		101,590			92,398
Income taxes payable		37,555			57,124
Deferred tax liabilities (Note 19)		14,301			33,181
Accrued expenses		158,664			160,107
Long-term debt (including liabilities accounted for at fair value of ¥552,354 million in 2013, and ¥657,626 million in 2014) (Notes 11 and 28)		8,802,223			9,853,941
Other liabilities (Notes 12, 20, 22, 23 and 28)		4,368,126			4,422,023
Total liabilities		172,889,899			169,077,975
Commitments and contingencies (Note 23)
Equity:
MHFG shareholders’ equity:
Preferred stock (Note 13)		377,354			312,651
Common stock (Note 14)—no par value, authorized 48,000,000,000 shares in 2013 and 2014, and issued 24,164,864,477 shares in 2013, and 24,263,885,187 shares in 2014		5,460,821			5,489,295
Accumulated deficit		(883,390	)		(537,479	)
Accumulated other comprehensive income, net of tax (Note 16)		777,997			1,117,877
Less: Treasury stock, at cost—Common stock 22,128,230 shares in 2013, and 13,817,747 shares in 2014		(4,662	)		(3,874	)
Total MHFG shareholders’ equity		5,728,120			6,378,470
Noncontrolling interests (Note 24)		128,975			242,901
Total equity		5,857,095			6,621,371
Total liabilities and equity		178,746,994			175,699,346

The following table presents certain liabilities of consolidated VIEs, which are included in the consolidated balance sheets above. The creditors or investors of the consolidated VIEs have no recourse to the MHFG Group, except where the Group provides credit enhancement through guarantees or other means.

	2013		2014
	(in millions of yen)
Liabilities of consolidated VIEs:
Other short-term borrowings		253,311		287,910
Trading account liabilities		10,585		7,355
Long-term debt		144,055		173,870
Other		978,685		929,990
Total liabilities		1,386,636		1,399,125

See the accompanying Notes to the Consolidated Financial Statements.

F-5

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME

FOR THE FISCAL YEARS ENDED MARCH 31, 2012, 2013 AND 2014

	2012			2013		2014
	(in millions of yen)
Interest and dividend income:
Loans, including fees		936,574			947,983		982,402
Investments:
Interest		170,651			162,451		131,295
Dividends		71,579			63,329		72,052
Trading account assets		193,288			169,216		161,212
Call loans and funds sold		6,601			4,947		5,949
Receivables under resale agreements and securities borrowing transactions		39,684			57,220		36,281
Deposits		18,709			18,229		33,608
Total interest and dividend income		1,437,086			1,423,375		1,422,799
Interest expense:
Deposits		131,140			124,053		133,140
Debentures		385			—		—
Trading account liabilities		28,436			23,688		30,746
Call money and funds purchased		8,604			7,686		7,664
Payables under repurchase agreements and securities lending transactions		47,114			66,995		36,906
Other short-term borrowings		20,481			16,490		12,120
Long-term debt		179,799			173,939		180,989
Total interest expense		415,959			412,851		401,565
Net interest income		1,021,127			1,010,524		1,021,234
Provision (credit) for loan losses (Notes 4 and 5)		(23,044	)		139,947		(126,230	)
Net interest income after provision (credit) for loan losses		1,044,171			870,577		1,147,464
Noninterest income:
Fees and commissions (Note 26)		575,413			612,808		675,763
Foreign exchange gains (losses)—net (Note 27)		98,054			20,514		25,631
Trading account gains (losses)—net (Note 27)		333,315			534,100		(59,687	)
Investment gains (losses)—net (Note 3)		(32,991	)		121,159		265,531
Gains on disposal of premises and equipment		19,924			12,411		10,460
Other noninterest income (Note 22)		96,420			138,427		165,136
Total noninterest income		1,090,135			1,439,419		1,082,834
Noninterest expenses:
Salaries and employee benefits (Note 20)		587,332			572,301		586,737
General and administrative expenses		477,512			439,708		486,772
Impairment of goodwill (Note 7)		5,637			—		3,792
Occupancy expenses		174,788			171,697		172,566
Fees and commission expenses		107,898			109,018		122,419
Provision (credit) for losses on off-balance-sheet instruments (Note 23)		(1,203	)		4,584		12,095
Other noninterest expenses (Notes 4 and 22)		119,507			127,508		119,574
Total noninterest expenses		1,471,471			1,424,816		1,503,955
Income before income tax expense		662,835			885,180		726,343
Income tax expense (Note 19)		13,878			4,024		226,108
Net income		648,957			881,156		500,235
Less: Net income (loss) attributable to noncontrolling interests		(7,432	)		5,744		1,751
Net income attributable to MHFG shareholders		656,389			875,412		498,484
Earnings per common share (Note 18):	(in yen)
Basic net income per common share		28.07			36.05		20.33
Diluted net income per common share		26.78			34.47		19.64

See the accompanying Notes to the Consolidated Financial Statements.

F-6

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

FOR THE FISCAL YEARS ENDED MARCH 31, 2012, 2013 AND 2014

	2012			2013		2014
	(in millions of yen)
Net income		648,957			881,156		500,235
Other comprehensive income (loss), net of tax:
Unrealized net gains (losses) on available-for-sale securities, net of tax (Note 3)		105,285			368,896		137,128
Foreign currency translation adjustments, net of tax		(7,814	)		87,651		76,104
Pension liability adjustments, net of tax (Note 20)		39,687			78,676		136,942
Total other comprehensive income (loss), net of tax		137,158			535,223		350,174
Total comprehensive income		786,115			1,416,379		850,409
Less: Total comprehensive income (loss) attributable to noncontrolling interests		(10,570	)		8,558		12,045
Total comprehensive income attributable to MHFG shareholders		796,685			1,407,821		838,364

Note: The amounts that have been reclassified out of Accumulated other comprehensive income into net income are presented in Note 16 “Accumulated other comprehensive income (loss)”.

See the accompanying Notes to the Consolidated Financial Statements.

F-7

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF EQUITY

FOR THE FISCAL YEARS ENDED MARCH 31, 2012, 2013 AND 2014

	2012			2013			2014
	(in millions of yen)
Preferred stock (Note 13):
Balance at beginning of fiscal year		453,576			410,368			377,354
Conversion to common stock		(43,208	)		(33,014	)		(28,013	)
Cancellation of preferred stock		—			—			(36,690	)
Balance at end of fiscal year		410,368			377,354			312,651
Common stock (Note 14):
Balance at beginning of fiscal year		5,164,160			5,427,992			5,460,821
Issuance of new shares of common stock for stock exchanges (Note 14)		244,100			—			—
Issuance of new shares of common stock by conversion of preferred stock		43,208			33,014			28,013
Gains (losses) on disposal of treasury stock		(48	)		(631	)		(31	)
Stock-based compensation (Note 21)		106			529			492
Change in ownership interest in consolidated subsidiaries		(23,534	)		(83	)		—
Balance at end of fiscal year		5,427,992			5,460,821			5,489,295
Accumulated deficit:
Balance at beginning of fiscal year		(2,046,024	)		(1,606,108	)		(883,390	)
Net income		656,389			875,412			498,484
Dividends declared		(216,473	)		(152,694	)		(152,265	)
Cancellation of preferred stock		—			—			(308	)
Balance at end of fiscal year		(1,606,108	)		(883,390	)		(537,479	)
Accumulated other comprehensive income, net of tax (Note 16):
Balance at beginning of fiscal year		104,972			245,588			777,997
Change during year		140,616			532,409			339,880
Balance at end of fiscal year		245,588			777,997			1,117,877
Treasury stock, at cost:
Balance at beginning of fiscal year		(3,197	)		(7,074	)		(4,662	)
Purchases of treasury stock		(2,560	)		(395	)		(37,387	)
Disposal of treasury stock		12,001			2,807			1,177
Effect of stock exchanges (Note 14)		(13,318	)		—			—
Cancellation of treasury stock		—			—			36,998
Balance at end of fiscal year		(7,074	)		(4,662	)		(3,874	)
Total MHFG shareholders’ equity		4,470,766			5,728,120			6,378,470
Noncontrolling interests:
Balance at beginning of fiscal year		361,869			176,258			128,975
Effect of stock exchanges (Note 14)		(216,558	)		—			—
Effect of other increase/decrease in consolidated subsidiaries		65,183			(36,457	)		113,887
Dividends paid to noncontrolling interests		(23,666	)		(19,384	)		(12,006	)
Net income (loss) attributable to noncontrolling interests		(7,432	)		5,744			1,751
Unrealized net gains (losses) on available-for-sale securities attributable to noncontrolling interests		(2,044	)		2,408			8,980
Foreign currency translation adjustments attributable to noncontrolling interests		(1,353	)		190			118
Pension liability adjustments attributable to noncontrolling interests		259			216			1,196
Balance at end of fiscal year		176,258			128,975			242,901
Total equity		4,647,024			5,857,095			6,621,371

Note: The amounts that have been reclassified out of Accumulated other comprehensive income into net income are presented in Note 16 “Accumulated other comprehensive income (loss)”.

See the accompanying Notes to the Consolidated Financial Statements.

F-8

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

FOR THE FISCAL YEARS ENDED MARCH 31, 2012, 2013 AND 2014

	2012			2013			2014
	(in millions of yen)
Cash flows from operating activities:
Net income		648,957			881,156			500,235
Less: Net income (loss) attributable to noncontrolling interests		(7,432	)		5,744			1,751
Net income attributable to MHFG shareholders		656,389			875,412			498,484
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization		165,721			157,165			161,258
Provision (credit) for loan losses		(23,044	)		139,947			(126,230	)
Investment losses (gains)—net		32,991			(121,159	)		(265,531	)
Foreign exchange losses (gains)—net		(5,747	)		160,588			127,254
Deferred income tax expense (benefit)		(40,939	)		(43,831	)		90,375
Net change in trading account assets		(2,953,353	)		(2,336,912	)		7,205,841
Net change in trading account liabilities		329,761			(536,213	)		(2,359,775	)
Net change in loans held for sale		3,860			4,571			(53,291	)
Net change in accrued income		(9,321	)		(22,386	)		21,735
Net change in accrued expenses		15,286			(20,215	)		12,262
Other—net		38,965			445,045			638,926
Net cash provided by (used in) operating activities		(1,789,431	)		(1,297,988	)		5,951,308
Cash flows from investing activities:
Proceeds from sales of investments		69,659,407			75,617,212			64,003,905
Proceeds from maturities of investments		15,079,088			14,578,614			9,862,926
Purchases of investments		(87,496,663	)		(89,109,906	)		(65,822,738	)
Proceeds from sales of loans		224,957			144,244			215,419
Net change in loans		(1,703,880	)		(2,501,863	)		(2,313,291	)
Net change in interest-bearing deposits in other banks		2,074,843			(4,638,673	)		(7,417,572	)
Net change in call loans and funds sold, and receivables under resale agreements and securities borrowing transactions		480,641			(268,103	)		2,306,310
Proceeds from sales of premises and equipment		13,231			18,002			39,324
Purchases of premises and equipment		(174,517	)		(161,359	)		(456,980	)
Net cash provided by (used in) investing activities		(1,842,893	)		(6,321,832	)		417,303
Cash flows from financing activities:
Net change in deposits		2,109,866			7,417,964			657,308
Net change in debentures		(740,933	)		—			—
Net change in call money and funds purchased, and payables under repurchase agreements and securities lending transactions		3,594,469			7,468,344			(6,771,338	)
Net change in due to trust accounts		(69,662	)		59,537			122,765
Net change in other short-term borrowings		(1,261,955	)		(7,251,033	)		(724,788	)
Proceeds from issuance of long-term debt		1,052,849			1,602,983			1,999,764
Repayment of long-term debt		(1,479,148	)		(1,488,151	)		(1,097,627	)
Proceeds from noncontrolling interests		627			1,057			43,083
Payment to noncontrolling interests		(107	)		(11	)		(1	)
Proceeds from issuance of common stock		5			—			—
Proceeds from sales of treasury stock		1,961			1,074			11
Purchases of treasury stock		(2,560	)		(7	)		(37,013	)
Dividends paid		(215,902	)		(152,514	)		(152,163	)
Dividends paid to noncontrolling interests		(23,666	)		(19,384	)		(12,006	)
Net cash provided by (used in) financing activities		2,965,844			7,639,859			(5,972,005	)
Effect of exchange rate changes on cash and due from banks		(1,424	)		31,776			31,831
Net increase (decrease) in cash and due from banks		(667,904	)		51,815			428,437
Cash and due from banks at beginning of fiscal year		1,884,531			1,216,627			1,268,442
Cash and due from banks at end of fiscal year		1,216,627			1,268,442			1,696,879

See the accompanying Notes to the Consolidated Financial Statements.

F-9

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS—(Continued)

FOR THE FISCAL YEARS ENDED MARCH 31, 2012, 2013 AND 2014

	2012		2013		2014
	(in millions of yen)
Supplemental disclosure of cash flow information:
Interest paid		427,104		447,766		408,803
Income taxes paid (refunded), net		40,211		92,547		122,619
Noncash investing activities:
Transfer from loans into other investments		1,351		—		—
Investment in capital leases		2,985		8,547		7,901
Noncash acquisition of noncontrolling interests in stock exchanges (Note 14)		216,558		—		—

Note: Certain cash flows for the fiscal year ended March 31, 2012 have been aggregated to conform to the current year’s presentation.

See the accompanying Notes to the Consolidated Financial Statements.

F-10

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. Basis of presentation and summary of significant accounting policies

Basis of presentation

Mizuho Financial Group, Inc. (“MHFG”) is a joint stock corporation with limited liability under the laws of Japan. MHFG, through its subsidiaries (“the MHFG Group”, or “the Group”), provides domestic and international financial services in Japan and other countries. MHFG’s subsidiaries are segmented on the basis of the nature of the financial products and services. Mizuho Bank, Ltd. (“MHBK”) is a banking subsidiary and offers a wide range of financial products and services mainly in relation to deposits, lending and exchange settlement to individuals, small and medium enterprises (“SMEs”), large corporations, financial institutions, public sector entities and foreign corporations, including foreign subsidiaries of Japanese corporations. Mizuho Trust & Banking Co., Ltd. (“MHTB”) is a trust bank subsidiary and offers mainly trust-related products and consulting services. Mizuho Securities Co., Ltd. (“MHSC”) is a securities and investment banking subsidiary and offers full-line securities services to corporations, financial institutions, public sector entities and individuals. Other major subsidiaries include Trust & Custody Services Bank, Ltd. (“TCSB”), Mizuho Capital Co., Ltd., and Mizuho Business Financial Center Co., Ltd. See Note 31 “Business segment information” for further discussion of the Group’s segment information.

The accompanying consolidated financial statements have been prepared in accordance with the accounting principles generally accepted in the United States of America (“U.S. GAAP”). The consolidated financial statements are stated in Japanese yen, the currency of the country in which MHFG is incorporated and principally operates.

The accompanying consolidated financial statements include the accounts of MHFG and its subsidiaries. MHFG’s fiscal year ends on March 31 and fiscal year of certain subsidiaries ends on December 31. The necessary adjustments have been made to the consolidated financial statements if significant intercompany transactions took place during the three-months periods. When determining whether to consolidate investee entities, we performed a careful analysis of the facts and circumstances of a particular relationship among entities as well as ownership of voting shares. The consolidated financial statements also include the accounts of the VIEs for which MHFG or its subsidiaries have been determined to be the primary beneficiary under the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 810, “Consolidation” (“ASC 810”). All significant intercompany transactions and balances have been eliminated in consolidation. The MHFG Group accounts for investments in entities over which it has significant influence using the equity method of accounting. These investments are included in Other investments and the Group’s proportionate share of income or loss is included in Investment gains (losses)—net.

Use of estimates

The preparation of the consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect reported amounts and related disclosures. Specific areas, among others, requiring the application of management’s estimates and judgment include assumptions pertaining to the allowance for loan losses, allowance for losses on off-balance-sheet instruments, deferred tax assets, derivative financial instruments, investments and pension and other employee benefits. Actual results could differ from estimates and assumptions made.

Definition of cash and due from banks

For purposes of the consolidated statements of cash flows, Cash and due from banks include cash on hand, cash items in the process of collection and noninterest-bearing deposits with banks.

F-11

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Translation of foreign currency financial statements and foreign currency transactions

Financial statements of overseas entities are prepared using the functional currency of each entity and translated into Japanese yen for consolidation purposes. Assets and liabilities are translated using the fiscal-year-end exchange rate of each functional currency, and income and expense using the average rate of each functional currency for the period.

Foreign currency translation gains and losses related to the financial statements of overseas entities of the MHFG Group, net of related income tax effects, are credited or charged directly to Foreign currency translation adjustments, a component of Accumulated other comprehensive income (loss), net of tax (“AOCI”). The tax effects of gains and losses related to the foreign currency translation of financial statements of overseas entities are not recognized unless it is apparent that the temporary differences will reverse in the foreseeable future.

Assets and liabilities denominated in foreign currencies are translated into Japanese yen at the fiscal-year-end foreign exchange rates, and gains and losses resulting from such translation are included in Foreign exchange gains (losses)—net, as appropriate. Foreign currency denominated income and expenses are translated using the average exchange rates for the period.

Call loans and call money

Call loans and call money represent lending/borrowing through the Japanese short-term money market to/from other financial institutions such as banks, insurance companies, and securities brokerage houses.

Repurchase and resale agreements, securities lending and borrowing and other secured financing transactions

Securities sold under agreements to repurchase (“repurchase agreements”), securities purchased under agreements to resell (“resale agreements”) and securities lending and borrowing transactions are accounted for as secured financing or lending transactions when control over the underlying securities is not deemed to be surrendered by the transferor. Otherwise, they are recorded as sales of securities with related forward repurchase commitments or purchases of securities with related forward resale commitments in accordance with ASC 860, “Transfers and Servicing” (“ASC 860”).

Repurchase transactions where the maturity of the security transferred as collateral matches the maturity of the repurchase agreements (“repo-to-maturity transactions”) are accounted for as sales rather than collateralized financings where the criteria for derecognition of the securities transferred under ASC 860 are met. There were no such transactions accounted for as sales as of March 31, 2013 and 2014.

Under resale agreements, securities borrowing and certain derivatives transactions, the MHFG Group receives collateral in the form of securities. In many cases, the MHFG Group is permitted to sell or repledge the securities obtained as collateral. Disclosures of such collateral are presented in Note 8 “Pledged assets and collateral”. With respect to repurchase agreements, securities lending, and certain derivative transactions, counterparties may have the right to sell or repledge securities that the MHFG Group has pledged as collateral. The MHFG Group separately discloses these pledged securities in the consolidated balance sheets.

The MHFG Group monitors credit exposure arising from resale agreements, repurchase agreements, securities borrowing and securities lending transactions on a daily basis, and additional collateral is obtained from or returned to counterparties, as appropriate.

F-12

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Trading securities and trading securities sold, not yet purchased

Trading securities consist of securities and money market instruments that are bought and held principally for the purpose of reselling in the near term with the objective of generating profits on short-term fluctuations in price. Trading securities sold, not yet purchased, are securities and money market instruments sold to third parties that the MHFG Group does not own and is obligated to purchase at a later date to cover the short position. Trading securities and trading securities sold, not yet purchased, are recorded on the trade date. Trading securities and trading securities sold, not yet purchased, are recorded at fair value in the consolidated balance sheets in Trading account assets and Trading account liabilities with realized and unrealized gains and losses recorded on a trade date basis in Trading account gains (losses)—net in the consolidated statements of income. Interest and dividends on trading securities, including securities sold, not yet purchased, are recorded in Interest and dividend income or Interest expense on an accrual basis.

Investments

Debt securities that the MHFG Group has both the positive intent and ability to hold to maturity are classified as Held-to-maturity securities and carried at amortized cost. Debt securities that the MHFG Group may not hold to maturity and any marketable equity securities, other than those classified as trading securities, are classified as Available-for-sale securities, and are carried at fair value, with unrealized gains and losses reported in AOCI.

The credit component of an other-than-temporary impairment of a debt security is reported in Investment gains (losses)—net and the noncredit component is reported in Other comprehensive income (loss). See Note 3 “Investments” for further discussion of impairment. Interest and dividends, as well as amortization of premiums and accretion of discounts, are reported in Interest and dividend income. Amortization of premiums and accretion of discounts on debt securities are recognized over the remaining maturity under the interest method. Gains and losses on disposition of investments are computed using the first-in first-out method for debt securities and the average method for equity securities, and are recorded on the trade date.

Other investments include marketable and non-marketable equity securities accounted for using the equity method, marketable and non-marketable investments held by consolidated investment companies carried at fair value under specialized industry accounting principles for investment companies, and other non-marketable equity securities carried at cost, less other-than-temporary impairment, if any.

Derivative financial instruments

Derivative financial instruments are bought and held principally for the purpose of market making for customers, proprietary trading in order to generate trading revenues and fee income, and also to manage the MHFG Group’s exposure to interest rate, credit and market risks related to asset and liability management. Such derivative financial instruments include interest rate, foreign currency, equity, commodity and credit default swap agreements, options, caps and floors, and financial futures and forward contracts.

Derivatives bought and held for trading purposes are recorded in the consolidated balance sheets at fair value in Trading account assets and Trading account liabilities. The fair value of derivatives in a gain position and a loss position are reported as Trading account assets and Trading account liabilities, respectively.

Derivatives used for asset and liability management include contracts that qualify for hedge accounting under ASC 815, “Derivatives and Hedging” (“ASC 815”). To be eligible for hedge accounting, derivative instruments must be highly effective in achieving offsetting changes in fair values or variable cash flows of the hedged items attributable to the particular risk being hedged. All qualifying hedging derivatives are valued at fair value and

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included in Trading account assets or Trading account liabilities. Derivatives that do not qualify for hedge accounting under ASC 815 are treated as trading positions and are accounted for as such. The fair value amounts recognized for such derivatives are not offset against the amounts recognized for the right to reclaim cash collateral or the obligation to return cash collateral under master netting agreement with the same counterparty.

The fair value of derivative financial instruments is determined based on quoted market prices or broker-dealer quotes, if available. If not, the fair value is estimated using quoted market prices for similar instruments, option or binomial pricing models or a present value cash flow analysis, utilizing current observable market information, where available. In determining the fair value, the Group considers various factors such as exchange or over-the-counter market quotes, time value of money and volatility factors for options and warrants, observed prices for similar or synthetic instruments, and counterparty credit quality including potential exposure.

Changes in the fair value of all derivatives are recorded in earnings, except for derivatives qualifying as net investment hedges under ASC 815 which are recorded in AOCI. The changes in the fair values of all derivatives relating to foreign currency exchange rates are included in Foreign exchange gains (losses)—net and Trading account gains (losses)—net. Other elements of the changes in the fair values, including interest rate, equity and credit related components except that of certain credit derivatives hedging the credit risk in the corporate loan portfolio, are recognized in Trading account gains (losses)—net. The net gain (loss) resulting from changes in the fair values of certain credit derivatives where the Group purchases protection to mitigate its credit risk exposure related to its corporate loan portfolio is recorded in Other noninterest income (expenses).

Certain financial and hybrid instruments often contain embedded derivative instruments that possess implicit or explicit contract terms similar to those of a derivative instrument. Such derivative instruments are required to be fair-valued separately from the host contracts if they meet the bifurcation criteria of an embedded derivative. Such criteria include whether the entire instrument is not marked to market through earnings, the economic characteristics and risks of the embedded contract terms are not clearly and closely related to those of the host contract and the embedded contract terms would meet the definition of a derivative on a stand-alone basis.

Loans

Loans are generally carried at the principal amount adjusted for unearned income and deferred net nonrefundable loan fees and costs. Loan origination fees, net of certain direct origination costs are deferred and recognized over the contractual life of the loan as an adjustment of yield using a method that approximates the interest method. Interest income on performing loans is accrued and credited to income as it is earned. Unearned income and discounts or premiums on purchased loans are deferred and recognized over the life of the loan using a method that approximates the interest method.

Loans are considered impaired when, based on current information and events, it is probable that the MHFG Group will be unable to collect all the scheduled payments of principal and interest when due according to the contractual terms of the loan. Factors considered by management in determining if a loan is impaired include delinquency status and the ability of the debtor to make payment of the principal and interest when due. Impaired loans include loans past due for 90 days or more and restructured loans that meet the definition of troubled debt restructuring (“TDR”) in accordance with ASC 310 “Receivables” (“ASC 310”).

All of the MHFG Group’s impaired loans are designated as nonaccrual loans and thus interest accrual and amortization of net origination fees are suspended and capitalized interest is written off. Cash received on nonaccrual loans is accounted for as reduction of the loan principal if the ultimate collectibility of the principal amount is uncertain, otherwise, as interest income. Loans are not restored to accrual status until interest and

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principal payments are current and future payments are reasonably assured. Impaired loans return to non-impaired loans and accrual status, when the MHFG Group determines that the borrower poses no problems regarding current certainty of debt fulfillment. In general, such determination is made if the borrower qualifies for an obligor rating of E2 or above and is not classified as a special attention obligor. With respect to loans restructured in TDR, in general, such loans return to non-impaired loans, and accrual status, when the borrower qualifies for an obligor rating of D or above. See Note 4 “Loans” for the definitions of obligor ratings.

Loans that have been identified to be sold are classified as loans held for sale within Other assets and are accounted for at the lower of cost or fair value on an individual loan basis. If management decides to retain certain loans held for sale for the foreseeable future or until maturity or payoff, such items are transferred to Loans at the lower of cost or fair value.

Securitization

The MHFG Group engages in securitization activities related to mortgage loans and other loans in the normal course of business. The MHFG Group records a loan securitization as a sale when the transferred loans are legally isolated from the Group’s creditors and the accounting criteria for a sale are met in accordance with ASC 860. Otherwise, the transfer is accounted for as a collateralized borrowing.

Allowance and provision (credit) for loan losses

The MHFG Group maintains an appropriate amount of allowance for loan losses to absorb probable losses inherent in the loan portfolio and makes adjustments to such allowance through the Provision (credit) for loan losses in the consolidated statements of income. Loan principal that management judges to be uncollectible, based on detailed loan reviews and a credit quality assessment, is charged off against the allowance for loan losses. In general, the MHFG Group charges off loans when the Group determines that the debtor should be classified as substantially bankrupt or bankrupt. See Note 4 “Loans” for the definitions of obligor categories. Obligors classified in the retail portfolio segment are generally determined to be substantially bankrupt when they are past due for more than six months, and as for other obligors, the Group separately monitors the credit quality of each obligor without using time-based triggers. Subsequent recoveries of previously charged-off loan balances are recorded as an increase to the allowance for loan losses as the recoveries are received.

The credit quality review process and the credit rating process serve as the basis for determining the allowance for loan losses. Through such processes loans are categorized into groups to reflect the probability of default, whereby the MHFG Group’s management assesses the ability of borrowers to service their debt, taking into consideration current financial information, ability to generate cash, historical payment experience, analysis of relevant industry segments and current trends. In determining the appropriate level of the allowance, the MHFG Group evaluates the probable loss by category of loan based on its risk type and characteristics.

The allowance for loan losses is determined in accordance with ASC 310 and ASC 450, “Contingencies” (“ASC 450”). The MHFG Group measures the impairment of a loan when it is probable that the Group will be unable to collect all amounts due according to the contractual terms of the loan agreement, based on (1) the present value of expected future cash flows, after considering the restructuring effect and subsequent payment default with respect to TDRs, discounted at the loan’s initial effective interest rate, (2) the loan’s observable market price, or (3) the fair value of the collateral if the loan is collateral dependent. The collateral that the Group obtains for loans consists primarily of real estate or listed securities. In obtaining the collateral, the Group evaluates the fair value of the collateral and its legal enforceability. The Group also conducts subsequent re-evaluations at least once a year. As it pertains to real estate, valuation is generally conducted by an appraising subsidiary which is independent from the Group’s loan origination sections by using generally accepted valuation

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techniques such as (1) the replacement cost approach, (2) the sales comparison approach or (3) the income approach. In the case of large real estate collateral, the Group generally retains third-party appraisers to conduct the valuation. As to listed securities, observable market prices are used for valuation.

The formula allowance is applied to groups of small balance, homogeneous loans that are collectively evaluated for impairment and for non-homogeneous loans that have not been identified as impaired. The evaluation of inherent loss in respect of these loans involves a high degree of uncertainty, subjectivity and judgment because probable loan losses are not easily identifiable or measurable. In determining the formula allowance, the MHFG Group relies on a statistical analysis that incorporates loss rates based on its own historical loss experience and third party data such as the number of corporate default cases which is updated once a year. In determining the allowance amount, the Group analyzes (1) the probability of default: (a) through the most recently available data for the past six years, in the case of normal obligors; and (b) through the most recently available data since April 2002, in the case of watch obligors; and (2) the loss given default through the most recently available data for the past six years. As it pertains to TDR loans in the retail portfolio segment, which are subject to collective evaluation for impairment, the restructuring itself, as well as subsequent payment default, if any, are considered in determining obligor ratings.

The historical loss rate is adjusted, where appropriate, to reflect current factors, such as general economic and business conditions affecting the key lending areas of the MHFG Group, credit quality trends, specific industry conditions within portfolio segments, and recent loss experience in particular segments of the portfolio. The estimation of the formula allowance is back-tested on a periodic basis by comparing the allowance with the actual results subsequent to the balance sheet date.

Allowance and provision (credit) for losses on off-balance-sheet instruments

The MHFG Group maintains an allowance for losses on off-balance-sheet credit instruments, such as guarantees, standby letters of credit, commitments to invest in securities and commitments to extend credit, in the same manner as the allowance for loan losses. The allowance is recorded in Other liabilities. Net changes in the allowance for losses on off-balance-sheet instruments are accounted for in the Provision (credit) for losses on off-balance-sheet instruments in the consolidated statements of income.

Premises and equipment

Premises and equipment are stated at historical cost, and depreciation and amortization are recorded over the estimated useful lives of the assets, except for leasehold improvements, which are amortized over the shorter of the estimated useful lives of the assets or the lease term. Depreciation and amortization are principally computed in accordance with the straight-line method with respect to buildings and leasehold improvements and in accordance with the declining-balance method with respect to other premises and equipment.

The useful lives of premises and equipment are as follows:

	Years
Buildings		3 to 50
Equipment and furniture		2 to 20
Leasehold improvements		2 to 50

Regular repairs and maintenance costs that do not extend the estimated useful life of an asset are charged to expense as incurred. Upon sale or disposition of premises and equipment, the cost and related accumulated depreciation or amortization are removed from the accounts, and any gains or losses on disposal are included in Gains on disposal of premises and equipment or Occupancy expenses.

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Impairment of long-lived assets

The MHFG Group’s long-lived assets that are held for use are reviewed periodically for events or changes in circumstances that indicate possible impairment. The Group’s impairment review is based on an undiscounted cash flow analysis of a group of assets, combined with associated liabilities, at the lowest level for which identifiable cash flows exist. Impairment occurs when the carrying value of the asset group exceeds the future undiscounted cash flows that the asset group is expected to generate. When impairment is identified, the future cash flows are then discounted to determine the estimated fair value of the asset group and an impairment charge is recorded for the difference between the carrying value and the estimated fair value of the asset group. The long-lived assets to be disposed of by sale are carried at the lower of the carrying amount or fair value, less estimated cost to sell.

Software

Internal and external costs incurred in connection with developing and obtaining software for internal use that occur during the application development stage are capitalized. Such costs include salaries and benefits for employees directly involved with and who devote time to the project, to the extent such time is incurred directly on the internal use software project. The capitalization of software ceases when the software project has been substantially completed. The capitalized software is amortized on a straight-line basis over the estimated useful life, generally 5 to 10 years. Internal use software is reviewed for impairment when triggering events occur.

Goodwill

Goodwill represents the excess of the total fair value of the acquired company, which consists of the consideration transferred, the fair value of any interest in the acquiree already held by the acquirer and the fair value of any noncontrolling interest in the acquiree over the fair value of net identifiable assets acquired at the date of acquisition in a business combination. The MHFG Group accounts for goodwill in accordance with ASC 350, “Intangibles—Goodwill and Other” (“ASC 350”). Goodwill is recorded at a designated reporting unit level for the purpose of assessing impairment. An impairment loss is recorded to the extent the carrying amount of goodwill exceeds its estimated fair value.

Intangible assets

Intangible assets having definite useful lives are amortized over their estimated useful lives on either a straight-line basis or the method that reflects the pattern in which the economic benefits of the intangible assets are consumed. Intangible assets acquired by the merger of MHSC and Shinko Securities Co., Ltd. (“Shinko”) consist primarily of customer relationship intangibles, and are amortized over a weighted-average amortization period of 16 years. Intangible assets having indefinite useful lives are not amortized and are subject to impairment tests. An impairment loss is recorded to the extent the carrying amount of indefinite-lived intangible asset exceeds its estimated fair value. For intangible assets subject to amortization, an impairment loss is recorded if the carrying amount is not recoverable and exceeds its estimated fair value.

Pension and other employee benefits

MHFG and certain subsidiaries sponsor severance indemnities and pension plans, which provide defined benefits to retired employees. Periodic expense and accrued liabilities are computed based on the actuarial present value of benefits, net of investment returns expected from plan assets and their fair values at the balance sheet date. Net periodic expense is charged to Salaries and employee benefits.

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Stock-based compensation

The compensation cost associated with stock compensation-type stock options is measured at fair value using the Black-Scholes option pricing model.

Long-term debt

Premiums, discounts and issuance costs of long-term debt are amortized based on a method that approximates the interest method over the respective terms of the long-term debt.

Obligations under guarantees

The MHFG Group provides customers with a variety of guarantees and similar arrangements, including standby letters of credit, financial and performance guarantees, credit protections, and liquidity facilities. The MHFG Group recognizes guarantee fee income over the guarantee period. The MHFG Group receives such a guarantee fee at the inception of the guarantee or in installments and, in either case, the present value of the total fees approximates the fair value of the guarantee.

Fair Value Measurements

The MHFG Group carries certain of its financial assets and liabilities at fair value on a recurring basis. These financial assets and liabilities are primarily composed of trading account assets, trading account liabilities and available-for-sale securities. In addition, the Group measures certain financial assets and liabilities, at fair value on a non-recurring basis. Those assets and liabilities primarily include items that are measured at the lower of cost or fair value such as loans held for sale, and items that were initially measured at cost and have been written down to fair value due to impairments, such as loans and other investments.

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. In accordance with ASC 820, “Fair Value Measurement” (“ASC 820”), the Group classifies its financial assets and liabilities into the fair value hierarchy (Level 1, 2, and 3). See Note 28 “Fair value” for the detailed definition of each level.

When determining fair value, the MHFG Group considers the principal or most advantageous market in which the Group would transact and considers assumptions that market participants would use when pricing the asset or liability. The Group maximizes the use of observable inputs and minimizes the use of unobservable inputs when measuring fair value. See Note 28 “Fair value” for descriptions of valuation methodologies used for its assets and liabilities by product.

Fees and commissions

Fee revenue is recognized when all of the following criteria have been met: persuasive evidence of an agreement exists, services have been rendered, the price is fixed or determinable, and collectibility is reasonably assured. Fees on securities-related business and fees on funds transfer and collection services are generally recognized as revenue when the related services are performed. Fees on credit-related business, excluding loan origination fees to be deferred and recognized over the loan period as an adjustment of yield, are generally recognized either at one time when the service is rendered or over the related transaction period. Fees and commissions are presented on a gross basis and exclusive of consumption taxes.

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Income taxes

Income taxes are accounted for in accordance with ASC 740, “Income Taxes” (“ASC 740”). Deferred income taxes reflect the net tax effects of (1) temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the corresponding amounts used for income tax purposes, and (2) operating loss and tax credit carryforwards. A valuation allowance is recorded for any portion of the deferred tax assets unless it is more likely than not that the deferred tax assets will be realized. Deferred income tax benefit or expense is recognized for the changes in the net deferred tax asset or liability between periods.

Earnings per common share

Basic earnings per common share are computed by dividing net income attributable to MHFG common shareholders by the weighted average number of common shares outstanding during the fiscal year. Diluted earnings per common share reflect the possible exercise of all convertible securities, such as convertible preferred stock to the extent they are not anti-dilutive. See Note 18 “Earnings per common share” for the computation of basic and diluted earnings per common share.

2. Recently issued accounting pronouncements

Recently adopted accounting pronouncements

On July 1, 2009, the ASC was officially launched. The ASC, which reorganized the thousands of U.S. GAAP pronouncements into roughly 90 accounting topics, is the single source of authoritative U.S. GAAP for nongovernmental entities.

In January 2010, the FASB issued Accounting Standards Update (“ASU”) No.2010-06, “Fair Value Measurements and Disclosures (Topic 820)—Improving Disclosures about Fair Value Measurements” (“ASU No.2010-06”). The ASU provides amendments to ASC 820 that require new disclosures regarding (1) transfers in and out of Levels 1 and 2 and (2) more detailed activity in Level 3. The ASU also provides amendments to ASC 820 that clarify existing disclosures regarding (1) level of disaggregation and (2) inputs and valuation techniques. The ASU is effective for interim and annual reporting periods beginning after December 15, 2009, except for the new disclosures related to the activity in Level 3, which do not become effective until fiscal years beginning after December 15, 2010, and for interim periods within those fiscal years. ASU No.2010-06 is an accounting principle which expands disclosure requirements, and had no impact on the MHFG Group’s consolidated results of operations or financial condition.

In July 2010, the FASB issued ASU No.2010-20, “Receivables (Topic 310)—Disclosures about the Credit Quality of Financing Receivables and the Allowance for Credit Losses” (“ASU No.2010-20”). The ASU requires disclosures that facilitate financial statement users’ evaluation of (1) the nature of credit risk inherent in the entity’s portfolio of financing receivables, (2) how that risk is analyzed and assessed in arriving at the allowance for credit losses and (3) the changes and reasons for those changes in the allowance for credit losses. The new disclosures required include (1) aging of past due receivables, (2) credit quality indicators, and (3) modifications of financing receivables. It is also required that certain existing disclosures should be provided on a disaggregated basis. The disclosures as of the end of a reporting period are effective for interim and annual reporting periods ending on or after December 15, 2010, whereas the disclosures about activity that occurs during a reporting period are effective for interim and annual reporting periods beginning on or after December 15, 2010. In January 2011, the FASB issued ASU No.2011-01, “Receivables (Topic310)—Deferral of the Effective Date of Disclosures about Troubled Debt Restructurings in Update No.2010-20” (“ASU No.2011-01”) to delay the effective date of the disclosures about troubled debt restructurings for public entities, and in April 2011, it

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was provided that such disclosure requirements would be effective for interim and annual periods beginning on or after June 15, 2011 in ASU No.2011-02, “Receivables (Topic310)—A Creditor’s Determination of Whether a Restructuring Is a Troubled Debt Restructuring” (“ASU No.2011-02”). ASU No.2011-02 also clarifies the guidance on a creditor’s evaluation for troubled debt restructurings of whether it has granted a concession and whether a debtor is experiencing financial difficulties. ASU No.2010-20 is an accounting principle which expands disclosure requirements, and had no impact on the MHFG Group’s consolidated results of operations or financial condition.

In December 2010, the FASB issued ASU No.2010-28, “Intangibles—Goodwill and Other (Topic 350)—When to Perform Step 2 of the Goodwill Impairment Test for Reporting Units with Zero or Negative Carrying Amounts” (“ASU No.2010-28”). The ASU requires that Step 2 of the impairment test should be performed in circumstances where the carrying amount of a reporting unit is zero or negative and there are qualitative factors that indicate it is more likely than not that a goodwill impairment exists. The ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2010. The adoption of ASU No.2010-28 did not have a material impact on the MHFG Group’s consolidated results of operations or financial condition.

In December 2010, the FASB issued ASU No.2010-29, “Business Combinations (Topic 805)—Disclosure of Supplementary Pro Forma Information for Business Combinations” (“ASU No.2010-29”). The ASU clarifies that, if a reporting entity presents comparative financial statements, the pro forma revenue and earnings of the combined entity should be reported as though the business combinations that occurred during the current year had occurred as of the beginning of the comparable prior annual reporting period only. The ASU is effective prospectively for business combinations for which the acquisition date is on or after the beginning of the first annual reporting period beginning on or after December 15, 2010. ASU No.2010-29 is an accounting principle which clarifies disclosure requirements, and had no impact on the MHFG Group’s consolidated results of operations or financial condition.

In April 2011, the FASB issued ASU No.2011-03, “Transfers and Servicing (Topic 860)—Reconsideration of Effective Control for Repurchase Agreements” (“ASU No.2011-03”). The ASU amends the conditions to determine whether a transferor in repurchase agreements (repos) and other similar agreements maintains effective control over the financial assets transferred by removing from the assessment of effective control (1) the criterion requiring the transferor to have the ability to repurchase or redeem the financial assets on substantially the agreed terms, even in the event of default by the transferee, and (2) the collateral maintenance implementation guidance related to that criterion. The ASU is effective for the first interim or annual period beginning on or after December 15, 2011, and should be applied prospectively to transactions or modifications of existing transactions that occur on or after the effective date. The adoption of ASU No.2011-03 did not have a material impact on the MHFG Group’s consolidated results of operations or financial condition.

In May 2011, the FASB issued ASU No. 2011-04, “Fair Value Measurement (Topic 820)—Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs” (“ASU No.2011-04”) in order to improve comparability of fair value measurements presented and disclosed in financial statements prepared in accordance with U.S. GAAP and International Financial Reporting Standards (“IFRS”). The amendments in ASU No. 2011-04 change the wording to describe the requirements in U.S. GAAP for measuring fair value and for disclosing information about fair value measurements to align with IFRS. The amendments also clarify the existing fair value measurement and disclosure requirements, which include (1) application of the highest and best use and valuation premise concepts, (2) measuring the fair value of an instrument classified in a reporting entity’s shareholders’ equity and (3) disclosing quantitative information about the unobservable inputs used for Level 3 items. The amendments also change a particular principle or requirement for measuring fair value or for disclosing information about fair value measurements, which include

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(1) measuring the fair value of financial instruments that are managed within a portfolio, (2) application of premiums and discounts in a fair value measurement and (3) additional disclosures about fair value measurements. The ASU is effective for interim and annual periods beginning after December 15, 2011. The adoption of ASU No.2011-04 did not have a material impact on the MHFG Group’s consolidated results of operations or financial condition.

In June 2011, the FASB issued ASU No.2011-05, “Comprehensive Income (Topic 220)—Presentation of Comprehensive Income” (“ASU No.2011-05”). The ASU eliminates the option to present components of other comprehensive income as part of the statement of changes in stockholders’ equity, and requires that all nonowner changes in stockholders’ equity be presented either in a single continuous statement of comprehensive income or in two separate but consecutive statements. The ASU also requires reclassification adjustments from other comprehensive income to net income be presented on the face of financial statements. The ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2011, and should be applied retrospectively. In December 2011, the FASB issued ASU No.2011-12, “Comprehensive Income (Topic 220)—Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income in Accounting Standards Update No.2011-05” (“ASU No.2011-12”) to indefinitely defer only those changes in ASU No.2011-05 that relate to the presentation of reclassification adjustments. All other requirements in ASU No.2011-05 are not affected, and entities should continue to report reclassifications out of accumulated other comprehensive income consistent with the presentation requirements in effect before ASU No.2011-05. ASU No.2011-05 is an accounting principle which alters disclosure requirements, and had no impact on the MHFG Group’s consolidated results of operations or financial condition.

In September 2011, the FASB issued ASU No.2011-08, “Intangibles—Goodwill and Other (Topic 350)—Testing Goodwill for Impairment” (“ASU No.2011-08”). The ASU permits an entity the option to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test. Under this ASU, an entity is not required to calculate the fair value of a reporting unit unless the entity determines that it is more likely than not that its fair value is less than its carrying amount. The ASU is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. The adoption of ASU No.2011-08 did not have a material impact on the MHFG Group’s consolidated results of operations or financial condition.

In December 2011, the FASB issued ASU No.2011-10, “Property, Plant, and Equipment (Topic 360)—Derecognition of in Substance Real Estate—a Scope Clarification” (“ASU No.2011-10”). The ASU clarifies that, even when a reporting entity ceases to have a controlling financial interest in a subsidiary that is in substance real estate as a result of default on the subsidiary’s nonrecourse debt, the reporting entity would continue to include the real estate, debt, and the results of the subsidiary’s operations in its consolidated financial statements until legal title to the real estate is transferred to legally satisfy the debt. The ASU is effective for fiscal years and interim periods within those years, beginning on or after June 15, 2012. The adoption of ASU No.2011-10 did not have a material impact on the MHFG Group’s consolidated results of operations or financial condition.

In December 2011, the FASB issued ASU No.2011-11, “Balance Sheet (Topic 210)—Disclosures about Offsetting Assets and Liabilities” (“ASU No.2011-11”). The ASU enhances disclosures by requiring improved information about financial instruments and derivative instruments that are either (1) offset on the statement of financial position or (2) subject to an enforceable master netting arrangement or similar agreement, irrespective of whether they are offset on the statement of financial position. Under the ASU, entities are required to provide both net and gross information for these financial instruments and derivative instruments in order to enhance

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comparability between those entities that prepare their financial statements on the basis of U.S. GAAP and those entities that prepare their financial statements on the basis of IFRS. The ASU is effective for annual reporting periods beginning on or after January 1, 2013 and interim periods within those annual periods. An entity should provide the disclosures required retrospectively for all comparative periods presented. In January 2013, the FASB issued ASU No.2013-01, “Balance Sheet (Topic 210)—Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities” (“ASU No.2013-01”). ASU No.2013-01 clarifies that the scope of ASU No.2011-11 applies to derivatives including bifurcated embedded derivatives, repurchase agreements and reverse repurchase agreements, and securities borrowing and securities lending transactions. ASU No.2011-11 is an accounting principle which expands disclosure requirements, and had no impact on the MHFG Group’s consolidated results of operations or financial condition.

In July 2012, the FASB issued ASU No.2012-02, “Intangibles—Goodwill and Other (Topic 350)—Testing Indefinite-Lived Intangible Assets for Impairment” (“ASU No.2012-02”). The ASU permits an entity first to assess qualitative factors to determine whether it is more likely than not that an indefinite-lived intangible asset is impaired as a basis for determining whether it is necessary to perform the quantitative impairment test. Under this ASU, an entity has an option not to calculate annually the fair value of an indefinite-lived intangible asset if the entity determines that it is not more likely than not that its fair value is less than its carrying amount. The ASU is effective for annual and interim impairment tests performed for fiscal years beginning after September 15, 2012. The adoption of ASU No.2012-02 did not have a material impact on the MHFG Group’s consolidated results of operations or financial condition.

In February 2013, the FASB issued ASU No.2013-02, “Comprehensive Income (Topic 220)—Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income” (“ASU No.2013-02”). The ASU requires an entity to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income. The ASU also requires an entity to provide information about the amounts reclassified out of accumulated other comprehensive income by component. The ASU is effective for reporting periods beginning after December 15, 2012. ASU No.2013-02 is an accounting principle which expands disclosure requirements, and had no impact on the MHFG Group’s consolidated results of operations or financial condition.

Accounting pronouncements issued but not yet effective

In June 2013, the FASB issued ASU No.2013-08, “Financial Services—Investment Companies (Topic 946)—Amendments to the Scope, Measurement, and Disclosure Requirements” (“ASU No.2013-08”). The ASU changes the approach to the investment company assessment and requires an investment company to measure noncontrolling ownership interests in other investment companies at fair value. The ASU also requires additional disclosures of (a) the fact that the entity is an investment company and is applying the guidance in ASC 946, “Financial Services—Investment Companies”, (b) information about changes, if any, in an entity’s status as an investment company, and (c) information about financial support provided or contractually required to be provided by an investment company to any of its investees. The ASU is effective for an entity’s interim and annual reporting periods in fiscal years that begin after December 15, 2013. Early adoption is prohibited. The MHFG Group does not expect that the adoption of ASU No.2013-08 will have a material impact on its consolidated results of operations and financial condition.

In May 2014, the FASB issued ASU No.2014-09, “Revenue from Contracts with Customers (Topic 606)” (“ASU No.2014-09”). The ASU provides a comprehensive guidance of revenue recognition, in convergence with IFRS, to improve financial reporting in U.S. GAAP by replacing the current complex guidance for recognizing revenue. The core principle of this ASU is that an entity should recognize revenue to depict the transfer of

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. To achieve that core principle, an entity should apply the following five steps: (1) identify the contract(s) with a customer, (2) identify the performance obligations in the contract, (3) determine the transaction price, (4) allocate the transaction price to the performance obligations in the contract, and (5) recognize revenue when ( or as) the entity satisfies a performance obligation. In order to enable users of financial statements to understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers, an entity should disclose the following quantitative and qualitative information: (1) contracts with customers—including revenue and impairments recognized, disaggregation of revenue, and information about contract balances and performance obligations, (2) significant judgments and changes in judgments—determining the timing of satisfaction of performance obligations, and determining the transaction price and amounts allocated to performance obligations, and (3) assets recognized from the costs to obtain or fulfill a contract. The ASU is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. Early application is not permitted. The MHFG Group is currently evaluating the potential impact that the adoption of ASU No.2014-09 will have on its consolidated results of operations and financial condition.

In June 2014, the FASB issued ASU No.2014-11, “Transfers and Servicing (Topic 860)—Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures” (“ASU No.2014-11”). The ASU changes the accounting for repurchase-to-maturity transactions to secured borrowing accounting. For repurchase financing arrangements, the ASU requires separate accounting for a transfer of a financial asset executed contemporaneously with a repurchase agreement with the same counterparty, which will result in secured borrowing accounting for the repurchase agreement. The ASU requires disclosures for certain transactions comprising (1) a transfer of a financial asset accounted for as a sale and (2) an agreement with the same transferee entered into in contemplation of the initial transfer that results in the transferor retaining substantially all of the exposure to the economic return on the transferred financial asset throughout the term of the transaction. The ASU also requires an entity to disclose certain information, including risks related to collateral pledged, for repurchase agreements, securities lending transactions, and repurchase-to-maturity transactions that are accounted for as secured borrowings. The ASU is effective for the first interim or annual period beginning after December 15, 2014, except for interim disclosure requirements related to secured borrowings, which are effective for interim periods beginning after March 15, 2015. Earlier application is prohibited. The MHFG Group does not expect that the adoption of ASU No.2014-11 will have a material impact on its consolidated results of operations and financial condition.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

3. Investments

The amortized cost, gross unrealized gains and losses, and fair value of available-for-sale and held-to-maturity securities at March 31, 2013 and 2014 are as follows:

	Amortized cost		Gross unrealized gains		Gross unrealized losses		Fair value
	(in millions of yen)
2013
Available-for-sale securities:
Debt securities:
Japanese government bonds		30,709,499		79,378		5,677		30,783,200
Japanese local government bonds		239,695		4,109		47		243,757
U.S. Treasury bonds and federal agency securities		177,438		623		36		178,025
Other foreign government bonds		596,305		1,914		94		598,125
Agency mortgage-backed securities (1)		986,646		20,496		1,429		1,005,713
Residential mortgage-backed securities		430,325		13,889		2,131		442,083
Commercial mortgage-backed securities		246,169		7,487		3,528		250,128
Japanese corporate bonds and other debt securities (2)		2,197,270		22,582		5,288		2,214,564
Foreign corporate bonds and other debt securities (3)		542,958		17,768		1,803		558,923
Equity securities (marketable)		1,699,475		1,440,102		144		3,139,433
Total		37,825,780		1,608,348		20,177		39,413,951
Held-to-maturity securities:
Debt securities:
Japanese government bonds		3,000,403		20,023		82		3,020,344
Total		3,000,403		20,023		82		3,020,344

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MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

	Amortized cost		Gross unrealized gains		Gross unrealized losses		Fair value
	(in millions of yen)
2014
Available-for-sale securities:
Debt securities:
Japanese government bonds		22,039,640		20,063		3,727		22,055,976
Japanese local government bonds		241,985		2,783		106		244,662
U.S. Treasury bonds and federal agency securities		158,344		434		4,297		154,481
Other foreign government bonds		719,281		2,356		455		721,182
Agency mortgage-backed securities (1)		955,291		13,288		7,705		960,874
Residential mortgage-backed securities		318,955		14,757		1,707		332,005
Commercial mortgage-backed securities		159,289		3,032		1,417		160,904
Japanese corporate bonds and other debt securities (2)		2,015,045		16,316		3,284		2,028,077
Foreign corporate bonds and other debt securities (3)		559,947		10,755		2,193		568,509
Equity securities (marketable)		1,667,669		1,761,025		6,603		3,422,091
Total		28,835,446		1,844,809		31,494		30,648,761
Held-to-maturity securities:
Debt securities:
Japanese government bonds		4,040,083		17,954		220		4,057,817
Total		4,040,083		17,954		220		4,057,817

Notes :

(1) Agency mortgage-backed securities presented in the above table consist of U.S. agency securities and Japanese agency securities, of which the fair values were ¥143,954 million and ¥861,759 million, respectively, at March 31, 2013, and ¥105,553 million and ¥855,321 million, respectively, at March 31, 2014. U.S. agency securities primarily consist of Government National Mortgage Association or Ginnie Mae securities, which are guaranteed by the United States government. All Japanese agency securities are mortgage-backed securities issued by Japan Housing Finance Agency, a Japanese government-sponsored enterprise.

(2) Other debt securities presented in the above table primarily consist of certificates of deposit (“CDs”) and asset-backed securities (“ABS”), of which the total fair values were ¥185,497 million at March 31,2013, and ¥214,488 million at March 31, 2014.

(3) Other debt securities presented in the above table primarily consist of CDs, ABS, and collateral loan obligations (“CLO”), of which the total fair values were ¥243,633 million at March 31,2013, and ¥178,055 million at March 31, 2014.

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MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The amortized cost and fair value of available-for-sale and held-to-maturity debt securities at March 31, 2014 by contractual maturity are shown in the table below. Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without penalties. Securities not due at a single maturity date and securities embedded with call or prepayment options, such as mortgage-backed securities, are included in the table below based on their contractual maturities.

Amortized cost	Due in one year or less		Due after one year through five years		Due after five years through ten years		Due after ten years		Total
	(in millions of yen)
Available-for-sale securities:
Debt securities:
Japanese government bonds		5,926,354		13,876,023		2,237,263		—		22,039,640
Japanese local government bonds		30,346		130,751		80,108		780		241,985
U.S. Treasury bonds and federal agency securities		43,475		75,005		39,864		—		158,344
Other foreign government bonds		507,140		211,949		—		192		719,281
Agency mortgage-backed securities		—		—		—		955,291		955,291
Residential mortgage-backed securities		—		—		—		318,955		318,955
Commercial mortgage-backed securities		4,085		123,455		31,749		—		159,289
Japanese corporate bonds and other debt securities		369,682		1,131,664		326,861		186,838		2,015,045
Foreign corporate bonds and other debt securities		221,916		251,536		83,865		2,630		559,947
Total		7,102,998		15,800,383		2,799,710		1,464,686		27,167,777
Held-to-maturity securities:
Debt securities:
Japanese government bonds		600,047		3,080,346		359,690		—		4,040,083
Total		600,047		3,080,346		359,690		—		4,040,083

Fair value	Due in one year or less		Due after one year through five years		Due after five years through ten years		Due after ten years		Total
	(in millions of yen)
Available-for-sale securities:
Debt securities:
Japanese government bonds		5,926,642		13,882,371		2,246,963		—		22,055,976
Japanese local government bonds		30,384		131,438		81,952		888		244,662
U.S. Treasury bonds and federal agency securities		43,907		72,142		38,432		—		154,481
Other foreign government bonds		507,577		213,355		—		250		721,182
Agency mortgage-backed securities		—		—		—		960,874		960,874
Residential mortgage-backed securities		—		—		—		332,005		332,005
Commercial mortgage-backed securities		4,087		124,981		31,836		—		160,904
Japanese corporate bonds and other debt securities		370,157		1,137,145		329,033		191,742		2,028,077
Foreign corporate bonds and other debt securities		222,527		253,142		89,625		3,215		568,509
Total		7,105,281		15,814,574		2,817,841		1,488,974		27,226,670
Held-to-maturity securities:
Debt securities:
Japanese government bonds		601,750		3,091,769		364,298		—		4,057,817
Total		601,750		3,091,769		364,298		—		4,057,817

F-26

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

In accordance with ASC 320, “Investments—Debt and Equity Securities” (“ASC 320”), for debt securities, if an entity has the intent to sell a debt security or more likely than not will be required to sell a debt security before recovery of its amortized cost basis, the full amount of an other-than-temporary impairment loss shall be recognized immediately through earnings. Other than either case described above, an entity must evaluate expected cash flows to be received and determine if a credit loss exists, and if so, the amount of an other-than-temporary impairment related to the credit loss shall be recognized in earnings, while the remaining decline in fair value shall be recognized in other comprehensive income, net of applicable taxes. For equity securities, if an equity security is deemed other-than-temporarily impaired, it shall be written down to fair value, with the full decline recognized in earnings.

The MHFG Group performs periodic reviews to identify impaired securities. Impairment is evaluated considering the length of time and extent to which the fair value has been below cost, the financial condition and near-term prospects of the issuer, as well as the MHFG Group’s ability and intent to hold the investments for a reasonable period of time until a forecasted recovery of fair value or maturity.

For the fiscal years ended March 31, 2012, 2013 and 2014, the MHFG Group recognized in earnings the other-than-temporary impairment on available-for-sale securities of ¥117,029 million, ¥76,393 million and ¥5,344 million, respectively, of which ¥7,238 million, ¥4,085 million and ¥1,151 million, respectively, were on debt securities and ¥109,791 million, ¥72,308 million and ¥4,193 million, respectively, were on equity securities. No impairment losses were recognized on held-to-maturity securities for the periods.

The other-than-temporary impairment losses for debt securities were mainly attributable to the decline in the fair value of commercial mortgage-backed securities (“CMBS”) that the MHFG Group had the intent to sell. In accordance with ASC 320-10-35-33A and ASC 320-10-35-34B, the other-than-temporary impairment of these securities was recognized in earnings. There has never been any instance related to credit losses recognized in earnings on debt securities where a portion of an other-than-temporary impairment was recognized in other comprehensive income.

The other-than-temporary impairment losses for equity securities were mainly attributable to the decline in the fair value of Japanese equity securities. Certain equity securities were determined not to be other-than-temporarily impaired based on the evaluation of the following factors: (1) the severity and duration of the impairments, (2) the financial condition and near-term prospects of the issuers, and (3) the MHFG Group’s ability and intent to hold those investments for a reasonable period of time sufficient for a forecasted recovery of fair value.

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MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The following tables show the gross unrealized losses and fair value of available-for-sale and held-to-maturity securities, aggregated by the length of time that individual securities have been in a continuous unrealized loss position, at March 31, 2013 and 2014:

	Less than 12 months				12 months or more				Total
	Fair value		Gross unrealized losses		Fair value		Gross unrealized losses		Fair value		Gross unrealized losses
	(in millions of yen)
2013
Available-for-sale securities:
Debt securities:
Japanese government bonds		5,059,495		1,520		406,684		4,157		5,466,179		5,677
Japanese local government bonds		27,243		47		—		—		27,243		47
U.S. Treasury bonds and federal agency securities		69,168		36		—		—		69,168		36
Other foreign government bonds		207,942		94		—		—		207,942		94
Agency mortgage-backed securities (1)		90,832		1,429		—		—		90,832		1,429
Residential mortgage-backed securities		12,778		9		122,363		2,122		135,141		2,131
Commercial mortgage-backed securities		7,159		111		122,588		3,417		129,747		3,528
Japanese corporate bonds and other debt securities		88,146		333		222,516		4,955		310,662		5,288
Foreign corporate bonds and other debt securities		54,599		114		65,417		1,689		120,016		1,803
Equity securities (marketable)		8,488		128		699		16		9,187		144
Total		5,625,850		3,821		940,267		16,356		6,566,117		20,177
Held-to-maturity securities:
Debt securities:
Japanese government bonds		199,730		82		—		—		199,730		82
Total		199,730		82		—		—		199,730		82
2014
Available-for-sale securities:
Debt securities:
Japanese government bonds		10,526,182		2,871		880,520		856		11,406,702		3,727
Japanese local government bonds		48,471		90		12,730		16		61,201		106
U.S. Treasury bonds and federal agency securities		66,865		2,865		38,432		1,432		105,297		4,297
Other foreign government bonds		203,026		275		7,654		180		210,680		455
Agency mortgage-backed securities (2)		102,904		2,348		76,369		5,357		179,273		7,705
Residential mortgage-backed securities		9,771		137		78,938		1,570		88,709		1,707
Commercial mortgage-backed securities		11,133		117		43,170		1,300		54,303		1,417
Japanese corporate bonds and other debt securities		130,020		359		60,230		2,925		190,250		3,284
Foreign corporate bonds and other debt securities		122,563		1,846		33,960		347		156,523		2,193
Equity securities (marketable)		132,590		6,603		10		—		132,600		6,603
Total		11,353,525		17,511		1,232,013		13,983		12,585,538		31,494
Held-to-maturity securities:
Debt securities:
Japanese government bonds		9,962		40		199,670		180		209,632		220
Total		9,962		40		199,670		180		209,632		220

Notes :

(1) Agency mortgage-backed securities presented in the above table represent U.S. agency securities. U.S. agency securities primarily consist of Government National Mortgage Association or Ginnie Mae securities, which are guaranteed by the United States government.

(2) Agency mortgage-backed securities presented in the above table consist of U.S. agency securities and Japanese agency securities, of which the fair values were ¥105,208 million and ¥74,065 million, respectively, at March 31, 2014. All Japanese agency securities are mortgage-backed securities issued by Japan Housing Finance Agency, a Japanese government-sponsored enterprise.

F-28

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The unrealized losses on investments in a continuous loss position for 12 months or more at March 31, 2014 were attributed mainly to Agency mortgage-backed securities and Japanese corporate bonds and other debt securities. The MHFG Group did not intend to sell those securities and it was not more likely than not that the Group would be required to sell them before recovery of their amortized cost basis. Those securities were not considered other-than-temporarily impaired. As to CMBS and Japanese corporate bonds and other debt securities with similar credit risks as the other-than-temporarily impaired securities, and Agency mortgage-backed securities and Residential mortgage-backed securities (“RMBS”), the Group determined that it was expected to recover their entire amortized cost basis, after considering various factors such as the extent to which their fair values were below their amortized costs, the external and/or internal ratings and the present values of cash flows expected to be collected. As to Japanese government bonds, since the unrealized losses had not resulted from credit deterioration, but primarily from changes in interest rates, their entire amortized cost basis was expected to be collected.

For the fiscal years ended March 31, 2012, 2013 and 2014, the gross realized gains on sales of available-for-sale securities were ¥100,371 million, ¥193,298 million and ¥231,955 million, respectively, and the gross realized losses on those sales were ¥28,840 million, ¥21,422 million and ¥29,387 million, respectively.

Other investments

The following table summarizes the composition of Other investments:

	2013		2014
	(in millions of yen)
Equity method investments		225,696		196,015
Investments held by consolidated investment companies		75,780		70,599
Other equity interests		536,659		526,075
Total		838,135		792,689

Equity method investments

Investments in investees over which the MHFG Group has the ability to exert significant influence are accounted for using the equity method of accounting. For the fiscal years ended March 31, 2012, 2013 and 2014, the earnings (losses) from equity method investments were ¥10,807 million, (¥2,192) million and ¥27,975 million, respectively. Such investments included marketable equity securities carried at ¥68,289 million and ¥78,458 million, at March 31, 2013 and 2014, respectively. The aggregate market values of these marketable equity securities were ¥111,543 million and ¥96,471 million, respectively.

The MHFG Group’s proportionate share of the total outstanding common shares in Orient Corporation (“Orico”) as of March 31, 2014 was 22.2% and the Group and a certain third party still hold convertible preferred shares of Orico, and if fully converted, the Group’s proportionate share of the total outstanding common shares in Orico would increase to 58.0%.

Investments held by consolidated investment companies

The MHFG Group consolidates certain investment companies over which it has control through either ownership or other means. Investment companies are subject to specialized industry accounting which requires investments to be carried at fair value, with changes in fair value recorded in earnings. The MHFG Group maintains this specialized industry accounting for investments held by consolidated investment companies, which consist of marketable and non-marketable investments.

F-29

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Other equity interests

Other equity interests consist primarily of non-marketable equity securities outside the scope of ASC 320, of which the fair values are not readily determinable. The MHFG Group has neither significant influence nor control over the investees. Each of these securities is stated at acquisition cost, with an other-than-temporary impairment, if any, included in earnings. The MHFG Group monitors the status of each investee, including its credit rating, to determine whether impairment losses should be recognized.

4. Loans

The table below presents loans outstanding by domicile and industry of borrower at March 31, 2013 and 2014:

	2013		2014
	(in millions of yen)
Domestic:
Manufacturing		8,078,871		8,025,932
Construction and real estate		7,477,853		7,204,594
Services		3,972,011		3,956,742
Wholesale and retail		5,355,974		5,350,707
Transportation and communications		3,147,106		3,247,394
Banks and other financial institutions		3,142,998		3,460,147
Government and public institutions		6,907,426		6,734,451
Other industries (Note)		4,521,994		4,983,821
Individuals:
Mortgage loans		11,234,561		11,187,206
Other		741,519		787,313
Total domestic		54,580,313		54,938,307
Foreign:
Commercial and industrial		10,481,071		12,937,005
Banks and other financial institutions		4,088,651		4,610,141
Government and public institutions		595,911		883,004
Other (Note)		199,518		255,083
Total foreign		15,365,151		18,685,233
Total		69,945,464		73,623,540
Less: Unearned income and deferred loan fees—net		111,981		138,586
Total loans before allowance for loan losses		69,833,483		73,484,954

Note: Other industries of domestic and Other of foreign include trade receivables and lease receivables of consolidated VIEs.

Net losses on sales of loans were ¥4,576 million, ¥853 million and ¥2,041 million, of which valuation losses related to loans held for sale accounted for at the lower of cost or fair value were ¥3,435 million, ¥54 million and ¥1,510 million for the fiscal years ended March 31, 2012, 2013 and 2014, respectively.

Credit quality information

In accordance with the MHFG Group’s credit risk management policies, the Group uses an internal rating system that consists of credit ratings and pool allocations as the basis of its risk management infrastructure. Credit

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MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

ratings consist of obligor ratings which represent the level of credit risk of the obligor, and transaction ratings which represent the ultimate possibility of incurring losses on individual loan by taking into consideration various factors such as collateral or guarantees involved. In principle, obligor ratings are applied to all obligors except those to which pool allocations are applied, and are subject to regular review at least once a year as well as special review which is required whenever the obligor’s credit standing changes. Pool allocations are applied to small balance loans. The Group pools loans with similar risk characteristics, and the risk is assessed and managed according to such pools. The Group generally reviews the appropriateness and effectiveness of the approach to obligor ratings and pool allocations once a year in accordance with predetermined procedures.

The table below presents the MHFG Group’s definition of obligor ratings used by MHBK and MHTB:

Obligor category	Obligor rating	Definition
Normal	A	Obligors whose certainty of debt fulfillment is very high, hence their level of credit risk is very low.
	B	Obligors whose certainty of debt fulfillment poses no problems for the foreseeable future, and their level of credit risk is low.
	C	Obligors whose certainty of debt fulfillment and their level of credit risk pose no problems for the foreseeable future.
	D	Obligors whose current certainty of debt fulfillment poses no problems, however, their resistance to future environmental changes is low.
Watch	E1	Obligors that require observation going forward because of either minor concerns regarding their financial position, or somewhat weak or unstable business conditions.
	E2	Obligors that require special observation going forward because of problems with their borrowings such as reduced or suspended interest payments, problems with debt fulfillment such as failure of principal or interest payments, or problems with their financial position as a result of their weak or unstable business condition.
Intensive control	F	Obligors that are not yet bankrupt but are in financial difficulties and are deemed likely to become bankrupt in the future because of insufficient progress in implementing their management improvement plans or other measures (including obligors that are receiving ongoing support from financial institutions).
Substantially bankrupt	G	Obligors that have not yet become legally or formally bankrupt but are substantially insolvent because they are in serious financial difficulties and are deemed to be incapable of being restructured.
Bankrupt	H	Obligors that have become legally or formally bankrupt.

F-31

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The table below presents credit quality information of loans based on the MHFG Group’s internal rating system at March 31, 2013 and 2014:

	Normal obligors								Watch obligors excluding special attention obligors (1)						Impaired loans		Total
	A-B		C-D		Retail (2)		Other (3)		E1-E2		Retail (2)		Other (3)
	(in millions of yen)
2013
Domestic:
Manufacturing		4,171,212		2,615,406		119,183		307,946		498,638		22,569		8,013		335,904		8,078,871
Construction and real estate		2,524,644		3,486,850		659,844		148,893		387,254		20,671		664		249,033		7,477,853
Services		1,736,931		1,734,482		219,089		4,035		160,754		26,621		—		90,099		3,972,011
Wholesale and retail		1,853,573		2,699,053		261,322		83,065		236,545		49,710		11		172,695		5,355,974
Transportation and communications		2,236,404		685,237		94,233		350		59,573		12,274		—		59,035		3,147,106
Banks and other financial institutions		2,246,804		666,197		2,172		5,311		208,510		221		—		13,783		3,142,998
Government and public institutions		6,797,133		11,729		—		98,564		—		—		—		—		6,907,426
Other industries		1,620,061		743,214		3,341		2,058,974		13,044		448		77,548		5,364		4,521,994
Individuals		—		191,360		11,219,209		170,768		33,618		121,468		4,032		235,625		11,976,080
Total domestic		23,186,762		12,833,528		12,578,393		2,877,906		1,597,936		253,982		90,268		1,161,538		54,580,313
Foreign:
Total foreign		8,293,654		3,650,488		4,881		2,021,284		980,343		137		111,684		302,680		15,365,151
Total		31,480,416		16,484,016		12,583,274		4,899,190		2,578,279		254,119		201,952		1,464,218		69,945,464
2014
Domestic:
Manufacturing		4,248,490		2,467,326		109,258		310,703		636,348		21,117		3,820		228,870		8,025,932
Construction and real estate		2,890,563		3,066,852		623,385		161,177		303,746		20,577		381		137,913		7,204,594
Services		1,946,764		1,558,609		205,939		6,998		135,030		24,958		—		78,444		3,956,742
Wholesale and retail		2,029,723		2,632,048		249,304		63,116		178,520		42,086		10		155,900		5,350,707
Transportation and communications		2,388,541		658,680		88,911		1,348		50,667		11,159		—		48,088		3,247,394
Banks and other financial institutions		2,602,545		664,843		2,030		4,780		174,328		165		—		11,456		3,460,147
Government and public institutions		6,678,104		8,347		—		48,000		—		—		—		—		6,734,451
Other industries		1,907,714		754,137		3,383		2,240,879		7,804		401		68,642		861		4,983,821
Individuals		—		197,725		11,266,620		169,655		40,606		101,718		2,823		195,372		11,974,519
Total domestic		24,692,444		12,008,567		12,548,830		3,006,656		1,527,049		222,181		75,676		856,904		54,938,307
Foreign:
Total foreign		10,600,531		4,349,587		6,621		2,782,476		513,610		14		144,238		288,156		18,685,233
Total		35,292,975		16,358,154		12,555,451		5,789,132		2,040,659		222,195		219,914		1,145,060		73,623,540

Notes:

(1) Special attention obligors are watch obligors with debt in TDR or 90 days or more delinquent debt. Loans to such obligors are considered impaired.

(2) Amounts represent small balance, homogeneous loans which are subject to pool allocations.

(3) The former MHBK and the former Mizuho Corporate Bank, Ltd. (“MHCB”) merged on July 1, 2013 and the former MHCB, the surviving company, changed its trade name to MHBK. As of March 31, 2013, non-impaired loans held by subsidiaries other than the former MHBK, the former MHCB and MHTB constitute Other, since their portfolio segments are not identical to those used by the former MHBK, the former MHCB and MHTB. As of March 31, 2014, non-impaired loans held by subsidiaries other than MHBK and MHTB constitute Other, since their portfolio segments are not identical to those used by MHBK and MHTB.

F-32

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Impaired loans

The MHFG Group considers loans to be impaired when it is probable that the Group will be unable to collect all the scheduled payments of principal and interest when due according to the contractual terms of the loan. The Group classifies loans to special attention, intensive control, substantially bankrupt and bankrupt obligors as impaired loans, and all of the Group’s impaired loans are designated as nonaccrual loans. The Group does not have any loans to borrowers that cause management to have serious doubts as to the ability of such borrowers to comply with the present loan repayment terms for the periods presented other than those already designated as impaired loans. The table below presents impaired loans information at March 31, 2013 and 2014.

	Recorded investment (1)						Unpaid principal balance		Related allowance (3)		Average recorded investment		Interest income recognized (4)
	Requiring an allowance for loan losses		Not requiring an allowance for loan losses (2)		Total
	(in millions of yen)
2013
Domestic:
Manufacturing		325,727		10,177		335,904		365,049		118,475		299,978		5,297
Construction and real estate		189,060		59,973		249,033		269,770		46,574		227,920		2,824
Services		77,982		12,117		90,099		106,397		22,153		103,113		1,949
Wholesale and retail		160,477		12,218		172,695		189,231		62,962		186,594		3,076
Transportation and communications		55,202		3,833		59,035		61,554		18,870		54,633		1,220
Banks and other financial institutions		13,727		56		13,783		13,821		5,007		11,950		227
Other industries		5,224		140		5,364		5,484		3,818		4,791		73
Individuals		116,875		118,750		235,625		252,182		9,429		250,718		4,343
Total domestic		944,274		217,264		1,161,538		1,263,488		287,288		1,139,697		19,009
Foreign:
Total foreign		297,859		4,821		302,680		305,801		119,053		220,561		5,321
Total		1,242,133		222,085		1,464,218		1,569,289		406,341		1,360,258		24,330
2014
Domestic:
Manufacturing		216,579		12,291		228,870		240,660		74,367		259,889		4,086
Construction and real estate		107,932		29,981		137,913		163,813		30,724		183,437		2,213
Services		66,651		11,793		78,444		88,537		20,199		83,754		1,671
Wholesale and retail		142,886		13,014		155,900		172,641		51,274		161,288		2,795
Transportation and communications		44,237		3,851		48,088		54,149		14,691		50,387		939
Banks and other financial institutions		11,390		66		11,456		11,480		4,049		12,474		163
Other industries		781		80		861		2,020		108		3,486		19
Individuals		91,715		103,657		195,372		206,341		9,391		215,422		3,714
Total domestic		682,171		174,733		856,904		939,641		204,803		970,137		15,600
Foreign:
Total foreign		276,292		11,864		288,156		290,161		118,360		291,981		4,750
Total		958,463		186,597		1,145,060		1,229,802		323,163		1,262,118		20,350

Notes:

(1) Amounts represent the outstanding balances of nonaccrual loans. The MHFG Group’s policy for placing loans in nonaccrual status completely corresponds to the Group’s definition of impaired loans.

(2) These impaired loans do not require an allowance for loan losses because the MHFG Group has sufficient collateral to cover probable loan losses.

(3) The allowance for loan losses on impaired loans includes those for groups of small balance, homogeneous loans totaling ¥504,750 million and ¥425,391 million as of March 31, 2013 and 2014 which were collectively evaluated for impairment, in addition to those that were individually evaluated for impairment.

(4) Amounts represent gross interest income on impaired loans which were included in Interest income on loans in the consolidated statements of income.

F-33

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The remaining balance of impaired loans which had been partially charged off were ¥51,720 million and ¥24,957 million as of March 31, 2013 and 2014, respectively.

Troubled debt restructurings

The MHFG Group considers restructurings, with respect to which concessions that it would not otherwise consider were granted to obligors in financial difficulty, as TDRs. The Group considers the relevant obligor to be in financial difficulty when its obligor rating is E2 or below. The following table presents TDRs that were made during the fiscal years ended March 31, 2013 and 2014.

	Loan forgiveness or debt to equity swaps				Interest rate reduction and/or Postponement of principal and/or interest
	Recorded investment (1)		Charge-offs (2)
			(in millions of yen)
2013
Domestic:
Manufacturing		—		—		277,957
Construction and real estate		—		—		129,908
Services		—		—		68,930
Wholesale and retail		—		1,243		218,497
Transportation and communications		—		—		52,206
Banks and other financial institutions		—		—		34,468
Other industries		—		—		1,809
Individuals		—		—		62,160
Total domestic		—		1,243		845,935
Foreign:
Total foreign		1,062		3,750		140,064
Total		1,062		4,993		985,999
2014
Domestic:
Manufacturing		235		481		196,705
Construction and real estate		2,528		136		44,573
Services		310		555		57,945
Wholesale and retail		5		149		170,217
Transportation and communications		—		—		34,598
Banks and other financial institutions		—		—		31,901
Other industries		—		—		1,998
Individuals		—		—		47,822
Total domestic		3,078		1,321		585,759
Foreign:
Total foreign		—		—		60,348
Total		3,078		1,321		646,107

Notes:

(1) Amounts represent the book values of loans immediately after the restructurings.

(2) Charge-offs represent the loss impact on the consolidated statements of income for the fiscal year that resulted from the restructurings.

F-34

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Payment default is deemed to occur when the loan becomes three months past due or the obligor is downgraded to the category of substantially bankrupt or bankrupt. The following table presents payment defaults which occurred during the fiscal years ended March 31, 2013 and 2014 with respect to the loans modified as TDRs within the previous twelve months.

	Recorded investment
	2013		2014
	(in millions of yen)
Domestic:
Manufacturing		18,740		21,144
Construction and real estate		18,751		3,500
Services		5,976		3,707
Wholesale and retail		19,920		21,916
Transportation and communications		4,386		14,069
Banks and other financial institutions		—		—
Other industries		—		107
Individuals		5,517		6,283
Total domestic		73,290		70,726
Foreign:
Total foreign		6,374		115
Total		79,664		70,841

F-35

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Age analysis of past due loans

The table below presents an analysis of the age of the recorded investment in loans that are past due at March 31, 2013 and 2014:

	30-59 days past due		60-89 days past due		90 days or more past due		Total past due		Current		Total
	(in millions of yen)
2013
Domestic:
Manufacturing		3,788		1,911		32,830		38,529		8,040,342		8,078,871
Construction and real estate		11,815		4,038		69,333		85,186		7,392,667		7,477,853
Services		3,385		1,916		13,829		19,130		3,952,881		3,972,011
Wholesale and retail		2,771		2,851		16,483		22,105		5,333,869		5,355,974
Transportation and communications		711		558		3,687		4,956		3,142,150		3,147,106
Banks and other financial institutions		—		—		6		6		3,142,992		3,142,998
Government and public institutions		—		—		—		—		6,907,426		6,907,426
Other industries		—		18		122		140		4,521,854		4,521,994
Individuals		41,987		24,114		69,774		135,875		11,840,205		11,976,080
Total domestic		64,457		35,406		206,064		305,927		54,274,386		54,580,313
Foreign:
Total foreign		127		885		11,132		12,144		15,353,007		15,365,151
Total		64,584		36,291		217,196		318,071		69,627,393		69,945,464
2014
Domestic:
Manufacturing		2,834		2,193		14,452		19,479		8,006,453		8,025,932
Construction and real estate		5,412		3,440		44,852		53,704		7,150,890		7,204,594
Services		2,185		1,235		10,304		13,724		3,943,018		3,956,742
Wholesale and retail		3,205		4,561		12,180		19,946		5,330,761		5,350,707
Transportation and communications		832		573		3,265		4,670		3,242,724		3,247,394
Banks and other financial institutions		—		1		5		6		3,460,141		3,460,147
Government and public institutions		—		—		—		—		6,734,451		6,734,451
Other industries		9		29		34		72		4,983,749		4,983,821
Individuals		38,466		18,488		56,605		113,559		11,860,960		11,974,519
Total domestic		52,943		30,520		141,697		225,160		54,713,147		54,938,307
Foreign:
Total foreign		87		23		10,935		11,045		18,674,188		18,685,233
Total		53,030		30,543		152,632		236,205		73,387,335		73,623,540

5. Allowance for loan losses

In accordance with ASC 450, a formula-based allowance utilizing historical loss factors, after adjusted for existing economic conditions where appropriate, is applied to groups of non-homogeneous loans and small balance, homogeneous loans which have not been identified as impaired. In MHBK and MHTB, when management estimates probable credit losses to determine the allowance for loan losses, small balance, homogeneous loans are classified in the retail portfolio segment to which pool allocations apply, and loans other than these classified in the retail portfolio segment are classified in the corporate portfolio segment. The corporate portfolio segment consists of loans originated by MHBK and MHTB, and includes mainly business loans such as those used for working capital and capital expenditure, as well as loans for which the primary source of repayment of the obligation is income generated by the relevant assets such as project finance, asset finance and real estate finance. The retail portfolio segment consists mainly of residential mortgage loans,

F-36

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

originated by MHBK. The other portfolio segment consists of loans of subsidiaries other than MHBK and MHTB, such as consolidated VIEs and overseas subsidiaries. See Note 1 “Basis of presentation and summary of significant accounting policies” for further detail of the methodology used to determine the allowance for loan losses and Note 4 “Loans” for further details of obligor ratings and pool allocations.

Changes in the Allowance for loan losses by portfolio segment for the fiscal years ended March 31, 2012, 2013 and 2014 are shown below:

	Corporate			Retail			Other		Total
	(in millions of yen)
2012
Balance at beginning of fiscal year		563,116			151,342			20,072		734,530
Provision (credit) for loan losses		(19,433	)		(21,375	)		17,764		(23,044	)
Charge-offs		54,599			5,133			20,410		80,142
Less: Recoveries		48,354			1,442			2,460		52,256
Net charge-offs		6,245			3,691			17,950		27,886
Others (Note)		(1,963	)		—			1,055		(908	)
Balance at end of fiscal year		535,475			126,276			20,941		682,692
2013
Balance at beginning of fiscal year		535,475			126,276			20,941		682,692
Provision (credit) for loan losses		137,549			(14,180	)		16,578		139,947
Charge-offs		69,845			4,249			20,503		94,597
Less: Recoveries		27,447			1,342			2,911		31,700
Net charge-offs		42,398			2,907			17,592		62,897
Others (Note)		11,269			—			1,946		13,215
Balance at end of fiscal year		641,895			109,189			21,873		772,957
2014
Balance at beginning of fiscal year		641,895			109,189			21,873		772,957
Provision (credit) for loan losses		(128,368	)		(12,712	)		14,850		(126,230	)
Charge-offs		47,927			3,935			13,286		65,148
Less: Recoveries		21,423			3,000			2,112		26,535
Net charge-offs		26,504			935			11,174		38,613
Others (Note)		14,326			—			3,737		18,063
Balance at end of fiscal year		501,349			95,542			29,286		626,177

Note: Others include primarily foreign exchange translation.

F-37

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The table below presents the Allowance for loan losses and loans outstanding by portfolio segment disaggregated on the basis of impairment method at March 31, 2013 and 2014:

	Corporate		Retail		Other		Total
	(in millions of yen)
2013
Allowance for loan losses		641,895		109,189		21,873		772,957
of which individually evaluated for impairment		398,622		14,815		9,247		422,684
of which collectively evaluated for impairment		243,273		94,374		12,626		350,273
Loans (Note)		51,801,814		13,007,792		5,135,858		69,945,464
of which individually evaluated for impairment		1,160,489		45,961		59,974		1,266,424
of which collectively evaluated for impairment		50,641,325		12,961,831		5,075,884		68,679,040
2014
Allowance for loan losses		501,349		95,542		29,286		626,177
of which individually evaluated for impairment		327,011		11,735		10,562		349,308
of which collectively evaluated for impairment		174,338		83,807		18,724		276,869
Loans (Note)		54,651,867		12,922,564		6,049,109		73,623,540
of which individually evaluated for impairment		1,100,938		39,250		54,127		1,194,315
of which collectively evaluated for impairment		53,550,929		12,883,314		5,994,982		72,429,225

Note: Amounts represent loan balances before deducting unearned income and deferred loan fees.

In the fiscal year ended March 31, 2012, the Provision for loan losses decreased by ¥23,691 million from the previous fiscal year. The decrease was due primarily to upgrades in the obligor categories of a broad range of borrowers as a result of the effectiveness of the MHFG Group’s credit management activities which was enhanced against the backdrop of the improving domestic economic environment, reflecting the continuing gradual recovery of the Japanese economy.

In the fiscal year ended March 31, 2013, the Provision for loan losses increased by ¥162,991 million from the previous fiscal year. The increase was due primarily to an increase in allowance for loan losses as a result of an increase in foreign impaired loans that required an allowance for loan losses and increased estimated losses reflecting changes in the business environment surrounding some domestic obligors, offset in part by the effects of the continuing gradual recovery of the Japanese economy.

In the fiscal year ended March 31, 2014, the Provision for loan losses decreased by ¥266,177 million from the previous fiscal year. The decrease was due primarily to a decrease in allowance for loan losses on domestic impaired loans as a result of upgrades and collections related to some borrowers and non-impaired loans reflecting upgrades in the obligor categories of a broad range of borrowers mainly through our credit management activities, including business revitalization support for borrowers, reflecting the continuing gradual recovery of the Japanese economy.

F-38

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

6. Premises and equipment

Premises and equipment at March 31, 2013 and 2014 consist of the following:

	2013		2014
	(in millions of yen)
Land		268,948		410,739
Buildings		743,473		800,680
Equipment and furniture		418,647		435,655
Leasehold improvements		90,306		92,052
Construction in progress		23,875		35,789
Software		657,702		725,287
Total		2,202,951		2,500,202
Less: Accumulated depreciation and amortization		1,110,962		1,143,608
Premises and equipment—net		1,091,989		1,356,594

Depreciation and amortization expense for premises and equipment for the fiscal years ended March 31, 2012, 2013 and 2014 was ¥160,231 million, ¥151,550 million and ¥155,549 million, respectively.

Premises and equipment under capital leases, which is primarily comprised of data processing equipment, amounted to ¥49,727 million and ¥51,681 million at March 31, 2013 and 2014, respectively. Accumulated depreciation and amortization on such premises and equipment at March 31, 2013 and 2014 amounted to ¥27,830 million and ¥28,209 million, respectively.

F-39

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

7. Goodwill and intangible assets

Goodwill

The changes in Goodwill during the fiscal years ended March 31, 2012, 2013 and 2014 were as follows:

	MHBK			Total
	(in millions of yen)
2012
Balance at beginning of fiscal year		7,610			7,610
Goodwill acquired (1)		3,776			3,776
Impairment losses recognized		5,637			5,637
Foreign exchange translation		(114	)		(114	)
Balance at end of fiscal year		5,635			5,635
Gross amount of goodwill		70,909			70,909
Accumulated impairment losses		65,274			65,274
2013
Balance at beginning of fiscal year		5,635			5,635
Goodwill acquired		—			—
Impairment losses recognized		—			—
Foreign exchange translation		512			512
Balance at end of fiscal year		6,147			6,147
Gross amount of goodwill		71,421			71,421
Accumulated impairment losses		65,274			65,274
2014
Balance at beginning of fiscal year		6,147			6,147
Goodwill acquired (2)		7,719			7,719
Impairment losses recognized		3,792			3,792
Foreign exchange translation		1,475			1,475
Balance at end of fiscal year		11,549			11,549
Gross amount of goodwill		80,615			80,615
Accumulated impairment losses		69,066			69,066

Notes:

(1) Goodwill acquired is entirely related to the acquisition of PT. Mizuho Balimor Finance.

(2) Goodwill acquired is entirely related to the acquisition of Banco Mizuho do Brasil S.A.

Due to the prolonged severe business environment for the former Mizuho Investors Securities Co., Ltd. (“MHIS”) and PT. Mizuho Balimor Finance, it was determined that the carrying amounts of the former MHIS reporting unit and PT. Mizuho Balimor Finance reporting unit exceeded their fair values, and therefore, goodwill impairment losses of ¥5,637 million and ¥3,792 million related to the former MHIS and PT. Mizuho Balimor Finance were recognized during the fiscal years ended March 31, 2012 and 2014, respectively.

F-40

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Intangible assets

The table below presents the gross carrying amount, accumulated amortization and net carrying amount of intangible assets, at March 31, 2013 and 2014.

	2013						2014
	Gross carrying amount		Accumulated amortization		Net carrying amount		Gross carrying amount		Accumulated amortization		Net carrying amount
	(in millions of yen)
Intangible assets subject to amortization:
Customer relationships (Note)		73,949		19,238		54,711		73,949		24,865		49,084
Other		2,363		2,050		313		2,808		2,152		656
Total		76,312		21,288		55,024		76,757		27,017		49,740
Intangible assets not subject to amortization:
Total		9,450		—		9,450		9,207		—		9,207
Total		85,762		21,288		64,474		85,964		27,017		58,947

Note: Customer relationships were acquired by the merger of MHSC and Shinko on May 7, 2009. See Note 1 “Basis of presentation and summary of significant accounting policies” for further information.

For the fiscal years ended March 31, 2012, 2013, and 2014, the MHFG Group recognized ¥5,490 million, ¥5,615 million, and ¥5,709 million, respectively, of amortization expenses for intangible assets.

The table below presents the estimated aggregate amortization expenses for intangible assets for the next five years:

	(in millions of yen)
Fiscal year ending March 31:
2015		5,349
2016		5,058
2017		4,780
2018		4,502
2019		4,264

8. Pledged assets and collateral

The following amounts, by balance sheet classification, have been pledged as collateral for borrowings and for other purposes at March 31, 2013 and 2014:

	2013		2014
	(in billions of yen)
Interest-bearing deposits in other banks		28		38
Trading account assets		13,752		10,271
Available-for-sale securities		15,939		13,353
Loans		8,860		8,796
Other assets		900		677
Total		39,479		33,135

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MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The associated liabilities collateralized by the above assets at March 31, 2013 and 2014 are summarized below:

	2013		2014
	(in billions of yen)
Deposits		259		878
Call money and funds purchased		1,580		1,708
Payables under repurchase agreements		7,726		6,884
Payables under securities lending transactions		11,092		6,237
Other short-term borrowings		5,626		405
Long-term debt		321		5,632
Total		26,604		21,744

The Bank of Japan (“the BOJ”) requires private depository institutions to maintain a certain amount of funds as reserves in current accounts with the BOJ, based on average deposit balances and certain other factors. There are similar reserve deposit requirements for foreign branches and subsidiaries engaged in banking businesses in foreign countries. At March 31, 2013 and 2014, the deposit amounts maintained with the BOJ and foreign central banks, which were included in Cash and due from banks and Interest-bearing deposits in other banks, were ¥10,507 billion and ¥18,084 billion, respectively. Those balances included the reserve funds required to be maintained by the MHFG Group, which amounted to ¥1,099 billion and ¥1,184 billion at March 31, 2013 and 2014, respectively.

At March 31, 2013 and 2014, the MHFG Group had received collateral that can be sold or repledged, with a fair value of ¥15,501 billion and ¥13,817 billion, respectively, of which ¥13,834 billion and ¥12,508 billion, respectively, were sold or repledged. Such collateral was primarily obtained under resale or securities borrowing agreements, and was used generally as collateral under repurchase or securities lending agreements, or to cover short sales.

9. Deposits

The balances of time deposits and certificates of deposit issued by domestic offices in amounts of ¥10 million (approximately US$97 thousand at the Federal Reserve Bank of New York’s noon buying rate on March 31, 2014) or more and the balances of those deposits issued by foreign offices in amounts of US$100,000 or more at March 31, 2013 and 2014 are as follows:

	2013		2014
	(in millions of yen)
Domestic offices:
Time deposits		18,302,196		18,351,826
Certificates of deposit		11,393,094		8,117,512
Total		29,695,290		26,469,338
Foreign offices:
Time deposits		8,209,016		9,555,568
Certificates of deposit		3,933,688		4,638,265
Total		12,142,704		14,193,833

The aggregate amount of demand deposits in overdraft status that have been reclassified as loan balances at March 31, 2013 and 2014 was ¥543 billion and ¥597 billion, respectively.

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MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The balance and remaining maturities of time deposits and certificates of deposit issued by domestic and foreign offices at March 31, 2014 are shown in the following table:

	Time deposits		Certificates of deposit		Total
	(in millions of yen)
Domestic offices:
Due in one year or less		24,079,640		8,115,532		32,195,172
Due after one year through two years		1,910,790		1,980		1,912,770
Due after two years through three years		1,243,980		—		1,243,980
Due after three years through four years		342,948		—		342,948
Due after four years through five years		412,261		—		412,261
Due after five years		133,735		—		133,735
Total		28,123,354		8,117,512		36,240,866
Foreign offices:
Due in one year or less		9,526,641		4,630,546		14,157,187
Due after one year through two years		20,176		7,719		27,895
Due after two years through three years		9,528		—		9,528
Due after three years through four years		1,102		—		1,102
Due after four years through five years		3,240		—		3,240
Due after five years		392		—		392
Total		9,561,079		4,638,265		14,199,344
Total		37,684,433		12,755,777		50,440,210

10. Due to trust accounts

MHTB and TCSB, which are MHFG’s trust bank subsidiaries, hold assets on behalf of their customers in an agent, fiduciary or trust capacity. Such trust account assets are not the MHFG Group’s proprietary assets and are managed and accounted for separately. However, the cash in individual trust accounts is often placed with MHTB and TCSB for the customers’ short-term investment needs. These amounts which MHTB and TCSB owe to the trust accounts are recorded as Due to trust accounts.

The MHFG Group consolidates certain guaranteed principal money trusts. See Note 25 “Variable interest entities and securitizations” for further discussion of the guaranteed principal money trust.

11. Short-term borrowings and long-term debt

Short-term borrowings

Short-term borrowings consist of Due to trust accounts, Call money and funds purchased, Payables under repurchase agreements and securities lending transactions, and Other short-term borrowings.

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MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Details of Other short-term borrowings at March 31, 2013 and 2014 are as follows:

	2013		2014
	(in millions of yen)
Commercial paper and short-term notes issued by consolidated VIEs of asset-backed commercial paper programs (1) (2)		252,277		286,968
Short-term notes issued by MHFG and its subsidiaries (1)		477,400		497,100
Borrowings from the Bank of Japan		5,884,304		5,138,003
Other		110,119		101,901
Total		6,724,100		6,023,972

Notes:

(1) Short-term notes are issued under laws of Japan in the form of dematerialized commercial paper, whose characteristics are economically the same as commercial paper.

(2) Commercial paper and short-term notes issued by consolidated VIEs of asset-backed commercial paper programs in the above table consist of commercial paper and short-term notes, of which amounts were ¥164,194 million and ¥88,083 million, respectively, at March 31, 2013, and ¥199,500 million and ¥87,468 million, respectively, at March 31, 2014.

Long-term debt

Long-term debt with original maturities of more than one year at March 31, 2013 and 2014 is comprised of the following:

	2013		2014
	(in millions of yen)
Obligations under capital leases		24,406		26,680
Loan participation borrowings		62,332		79,014
Senior borrowings and bonds		4,784,010		5,805,634
Subordinated borrowings and bonds		3,931,475		3,942,613
Total		8,802,223		9,853,941

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MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The following table presents the interest rates and maturities of senior borrowings and bonds, and subordinated borrowings and bonds:

	Interest rates (1)		Maturities (2)		2013		2014
	(%)				(in millions of yen)
Senior borrowings and bonds:
fixed rate denominated in Japanese yen		0.00-10.00		Apr. 2014-Mar. 2044		2,741,475		3,557,508
fixed rate denominated in U.S. dollars		0.00-7.49		Apr. 2014-Jul. 2043		520,714		604,281
fixed rate denominated in other currencies		0.02-5.40		Jan. 2015-Mar. 2029		683		25,687
floating rate denominated in Japanese yen		0.00-18.10		Apr. 2014-Mar. 2044		1,065,708		1,063,111
floating rate denominated in U.S. dollars		0.00-15.60		Apr. 2014-Mar. 2028		426,515		532,199
floating rate denominated in other currencies		0.05-0.58		Apr. 2014-Jan. 2015		28,915		22,848
Total						4,784,010		5,805,634
Subordinated borrowings and bonds:
fixed rate denominated in Japanese yen		1.09-4.74		Apr. 2014-Perpetual		3,393,092		3,249,999
fixed rate denominated in U.S. dollars		4.30-14.91		Apr. 2014-Perpetual		419,383		613,609
floating rate denominated in Japanese yen		0.98-2.61		Jun. 2019-Perpetual		119,000		79,005
Total						3,931,475		3,942,613
Total						8,715,485		9,748,247

Notes:

(1) The interest rates disclosed reflect the range of contractual rates in effect at March 31, 2014.

(2) Maturity information disclosed is the range of maturities at March 31, 2014.

(3) None of the long-term debt issuances above are convertible to common stock.

(4) Certain debt agreements permit the MHFG Group to redeem the related debt, in whole or in part, prior to maturity at the MHFG Group’s option on terms specified in the respective agreements.

The following is a summary of the contractual maturities of long-term debt subsequent to March 31, 2014:

	(in millions of yen)
Fiscal year ending March 31:
2015		1,222,317
2016		1,190,985
2017		1,776,546
2018		1,025,441
2019		483,888
2020 and thereafter		4,154,764
Total		9,853,941

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MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

12. Other assets and liabilities

The following table sets forth the details of other assets and liabilities at March 31, 2013 and 2014:

	2013		2014
	(in millions of yen)
Other assets:
Accounts receivable from brokers, dealers and customers for securities transactions		907,671		1,122,247
Collateral provided for derivative transactions		742,307		466,420
Prepaid pension cost		153,414		403,654
Miscellaneous receivables		120,322		315,037
Margins provided for futures contracts		99,844		147,376
Security deposits		102,031		121,675
Loans held for sale		9,820		58,745
Other		466,542		563,841
Total		2,601,951		3,198,995
Other liabilities:
Accounts payable to brokers, dealers and customers for securities transactions		1,560,345		1,325,455
Guaranteed trust principal		535,720		591,647
Miscellaneous payables		260,665		473,028
Collateral accepted for derivative transactions		503,101		432,820
Factoring amounts owed to customers		375,933		382,189
Margins accepted for futures contracts		199,930		289,381
Unearned income		141,189		141,735
Other		791,243		785,768
Total		4,368,126		4,422,023

Unearned income

Unearned income is primarily comprised of refundable fees received from consumer loan customers at the time the loan was made, which is being deferred and recognized in earnings as earned.

Guaranteed trust principal

Guaranteed trust principal is the liability of certain consolidated trust arrangements, which the MHFG Group provides guarantees for the repayment of principal. See Note 25 “Variable interest entities and securitizations” for further discussion of the guaranteed principal money trust.

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MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

13. Preferred stock

The composition of preferred stock at March 31, 2012, 2013 and 2014 is as follows:

2012	Aggregate amount		Number of shares						Liquidation value per share		Convertible or not
Class of stock			Authorized		Issued		In treasury
	(in millions of yen)								(in yen)
Eleventh series class XI preferred stock (1)		914,752		1,369,512,000		914,752,000		541,073,800		1,000		Yes
Class XII preferred stock		—		1,500,000,000		—		—		—		—
Thirteenth series class XIII preferred stock		36,690		1,500,000,000		36,690,000		—		1,000		No
Total		951,442		4,369,512,000		951,442,000		541,073,800
2013	Aggregate amount		Number of shares						Liquidation value per share		Convertible or not
Class of stock			Authorized		Issued		In treasury
	(in millions of yen)								(in yen)
Eleventh series class XI preferred stock (1)		914,752		1,369,512,000		914,752,000		574,087,800		1,000		Yes
Class XII preferred stock		—		1,500,000,000		—		—		—		—
Thirteenth series class XIII preferred stock		36,690		1,500,000,000		36,690,000		—		1,000		No
Total		951,442		4,369,512,000		951,442,000		574,087,800

F-47

MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

2014	Aggregate amount		Number of shares						Liquidation value per share		Convertible or not
Class of stock			Authorized		Issued		In treasury
	(in millions of yen)								(in yen)
Eleventh series class XI preferred stock (1)		914,752		914,752,000		914,752,000		602,100,700		1,000		Yes
Thirteenth series class XIII preferred stock		—		36,690,000		—		—		—		—
First series class XIV preferred stock (2)		—		900,000,000		—		—		—		—
Second series class XIV preferred stock (2)		—		900,000,000		—		—		—		—
Third series class XIV preferred stock (2)		—		900,000,000		—		—		—		—
Fourth series class XIV preferred stock (2)		—		900,000,000		—		—		—		—
First series class XV preferred stock (3)		—		900,000,000		—		—		—		—
Second series class XV preferred stock (3)		—		900,000,000		—		—		—		—
Third series class XV preferred stock (3)		—		900,000,000		—		—		—		—
Fourth series class XV preferred stock (3)		—		900,000,000		—		—		—		—
First series class XVI preferred stock (4)		—		1,500,000,000		—		—		—		—
Second series class XVI preferred stock (4)		—		1,500,000,000		—		—		—		—
Third series class XVI preferred stock (4)		—		1,500,000,000		—		—		—		—
Fourth series class XVI preferred stock (4)		—		1,500,000,000		—		—		—		—
Total		914,752		4,251,442,000		914,752,000		602,100,700

Notes:

(1) The aggregate amount and number of issued shares include the preferred stock in treasury which has been converted to common stock but not yet cancelled.

(2) The total number of authorized shares from first to fourth series class XIV preferred stock shall not exceed 900,000,000.

(3) The total number of authorized shares from first to fourth series class XV preferred stock shall not exceed 900,000,000.

(4) The total number of authorized shares from first to fourth series class XVI preferred stock shall not exceed 1,500,000,000.

Holders or registered pledgees of preferred stock are entitled to receive annual dividends, and distribution of residual assets of MHFG as set out above at the liquidation value per share, prior to holders of common stock but pari passu among themselves. MHFG may pay up to one-half of the annual dividend payable on each class of preferred stock as an interim dividend. Dividends on preferred stock are not cumulative. Holders of preferred stock are not entitled to vote at a general meeting of shareholders except where the articles of incorporation entitle holders of preferred stock to vote.

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MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

In June 2013, MHFG newly authorized class XIV preferred stock, class XV preferred stock and class XVI preferred stock in relation to meet the requirements of Basel III. Under Basel III, in order for preferred stock issued by a bank holding company to be included as its regulatory capital under the capital adequacy requirements, the terms and conditions of the preferred stock are required to include a provision that in the case where the bank holding company is recognized as non-viable, (1) a write-off of the relevant preferred stock or (2) a conversion of the relevant preferred stock into common stock shall be effected (a loss-absorption clause). In respect of class XI preferred stock, class XII preferred stock and class XIII preferred stock, which were authorized for since before the implementation of Basel III in the articles of incorporation of MHFG, it is not possible to include the foregoing loss-absorption clause in the terms and conditions of those preferred stock under the current provisions of the articles of incorporation. Therefore, class XIV preferred stock, class XV preferred stock and class XVI preferred stock were newly authorized so that the foregoing loss-absorption clause can be included in the terms and conditions of class XIV preferred stock, class XV preferred stock and class XVI preferred stock by a resolution of the board of directors relating to the issuance of the relevant preferred stock. Besides the foregoing loss-absorption clause, provisions regarding the preferred stock dividends, distribution of residual assets, acquisition clause and rights to request acquisition in respect of class XIV preferred stock, class XV preferred stock and class XVI preferred stock were newly established. In addition, each of class XIV preferred stock, class XV preferred stock and class XVI preferred stock was established in multiple series as a separate class of shares in order to enable MHFG to issue those preferred stock in multiple series.

Eleventh series class XI preferred stock is convertible into common stock at the option of the holder. The material terms and conditions of conversion are as follows.

	Conversion period	Conversion ratio (Note)
Eleventh series class XI preferred stock	July 1, 2008 to June 30, 2016	¥1,000/(conversion price), where the conversion price after adjustment is ¥282.90 on or after August 30, 2011; to be reset on July 1, 2014 and 2015 (each, a “Reset Date”) as ¥1,000/(conversion price), where the conversion price is the lower of (x) the average price of daily closing prices (including closing bid or offered price) of common stock as reported by the Tokyo Stock Exchange (“TSE”) for the 30 consecutive trading days (excluding trading days on which no closing price, closing bid or offered price is reported) commencing on the 45th trading day prior to the Reset Date and (y) the conversion price after adjustment effective as of the day before the relevant Reset Date, provided that the conversion price shall not be less than ¥282.90.

Note: Subject to adjustment, where issuance or disposal by MHFG of common stock for a price below the “current market price”, a stock split, issuance of securities convertible into common stock at a price below the “current market price” at the time of issuance thereof or determination of the conversion price thereof, merger or amalgamation, or a capital decrease or stock consolidation occurs and in certain other circumstances.

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MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Each share of preferred stock which has not been converted as described above by the end of the relevant conversion period will be converted into common stock on the day following the end of the conversion period on the following terms:

	Conversion date	Conversion ratio
Eleventh series class XI preferred stock	July 1, 2016	¥1,000/(current market price), where the current market price is the average price of daily closing prices (including closing bid or offered price) of common stock as reported by the TSE for the 30 consecutive trading days (excluding trading days on which no closing price, closing bid or offered price is reported) commencing on the 45th trading day prior to July 1, 2016, provided that the current market price shall not be less than ¥282.90.

The changes in the number of shares and the aggregate amount of preferred stock during the fiscal years ended March 31, 2012, 2013 and 2014 were as follows:

Class of stock	Issued at March 31, 2011		Net change		Issued at March 31, 2012		Net change		Issued at March 31, 2013		Net change			Issued at March 31, 2014
	(number of shares)
Eleventh series class XI preferred stock (Note)		914,752,000		—		914,752,000		—		914,752,000		—			914,752,000
Thirteenth series class XIII preferred stock		36,690,000		—		36,690,000		—		36,690,000		(36,690,000	)		—
Total		951,442,000		—		951,442,000		—		951,442,000		(36,690,000	)		914,752,000
Class of stock	Aggregate amount at March 31, 2011		Net change		Aggregate amount at March 31, 2012		Net change		Aggregate amount at March 31, 2013		Net change			Aggregate amount at March 31, 2014
	(in millions of yen)
Eleventh series class XI preferred stock (Note)		914,752		—		914,752		—		914,752		—			914,752
Thirteenth series class XIII preferred stock		36,690		—		36,690		—		36,690		(36,690	)		—
Total		951,442		—		951,442		—		951,442		(36,690	)		914,752

Note: The aggregate amount and number of issued shares include the preferred stock in treasury which has been converted to common stock but not yet cancelled.

14. Common stock

On September 1, 2011, MHFG exchanged 824,271,984 shares of its common stock for 30.15 percent of the voting equity interests in MHTB, in order to turn MHTB into MHFG’s wholly-owned subsidiary. This transaction was accounted for as an equity transaction. The consideration through issuance of common stock was ¥95,828 million and the MHFG Group recognized a decrease of ¥65,494 million in additional paid-in capital which reflects the adjustment to the carrying amount of Noncontrolling interests. In addition, the carrying amount of Accumulated other comprehensive income of ¥958 million was adjusted to reflect the change in the ownership interest in MHTB through a corresponding increase in additional paid-in capital.

On September 1, 2011, the former MHCB exchanged 951,166,005 shares of MHFG’s common stock for 40.80 percent of the voting equity interests in the former MHSC, in order to turn the former MHSC into the former MHCB’s wholly-owned subsidiary. This transaction was accounted for as an equity transaction. The consideration through issuance of common stock was ¥110,379 million and the Group recognized increase of ¥38,423 million in additional paid-in capital which reflects the adjustment to the carrying amount of

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MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Noncontrolling interests. In addition, the carrying amount of Accumulated other comprehensive income of ¥2,178 million was adjusted to reflect the change in the ownership interest in the former MHSC through a corresponding decrease in additional paid-in capital.

On September 1, 2011, the former MHBK exchanged 322,928,897 shares of MHFG’s common stock for 46.02 percent of the voting equity interests in the former MHIS, in order to turn the former MHIS into the former MHBK’s wholly-owned subsidiary. This transaction was accounted for as an equity transaction. The consideration through issuance of common stock was ¥37,497 million and the Group recognized increase of ¥11,599 million in additional paid-in capital which reflects the adjustment to the carrying amount of Noncontrolling interests. In addition, the carrying amount of Accumulated other comprehensive income of ¥744 million was adjusted to reflect the change in the ownership interest in the former MHIS through a corresponding increase in additional paid-in capital.

The changes in the number of issued shares of common stock during the fiscal years ended March 31, 2012, 2013 and 2014 were as follows:

	2012		2013		2014
	(shares)
Balance at beginning of fiscal year		21,782,185,320		24,048,165,727		24,164,864,477
Issuance of new shares of common stock by conversion of Eleventh series class XI preferred stock		151,921,540		116,698,750		99,020,710
Issuance of new shares of common stock by exercise of stock acquisition rights		4,748,000		—		—
Issuance of new shares of common stock for stock exchanges		2,109,310,867		—		—
Balance at end of fiscal year		24,048,165,727		24,164,864,477		24,263,885,187

15. Dividends

The amount available for dividends under the Companies Act is based on the amount recorded in MHFG’s non-consolidated general books of account, maintained in accordance with accounting principles generally accepted in Japan (“Japanese GAAP”) and adjusted by post period-end changes. Therefore, the consolidated shareholders’ equity under U.S. GAAP has no effect on the determination of the amount available for dividends. On March 31, 2014, MHFG’s capital stock, capital surplus and retained earnings were ¥2,254,973 million, ¥1,194,865 million and ¥1,419,866 million, respectively, under Japanese GAAP.

In making a distribution of retained earnings, an entity must set aside in its legal reserve an amount equal to one-tenth of the amount of retained earnings so distributed, until its legal reserve reaches to one-quarter of its capital stock. MHFG’s legal reserve at March 31, 2014 was ¥1,199,215 million, of which ¥1,194,865 million was included in capital surplus and ¥4,350 million in retained earnings.

In addition to the provision that requires an appropriation for the legal reserve, the Companies Act and the Banking Act impose certain limitations on the amount available for dividends. Under the Companies Act, MHFG’s maximum amount available for dividends, at March 31, 2014, was ¥1,412,282 million, based on the amount recorded in MHFG’s general books of account under Japanese GAAP. Under the Banking Act and related regulations, MHFG has to meet the minimum capital adequacy requirements. Distributions of retained earnings, which are otherwise distributable to shareholders, are restricted in order to maintain the minimum Common Equity Tier 1 capital ratio of 4.5% (3.5% in 2013 and 4.0% in 2014) for capital adequacy purposes under the rules in Basel III. See Note 17 “Regulatory matters” for further discussion of regulatory capital requirements.

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MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Payment of dividends on shares of common stock is also subject to the prior payment of dividends on shares of preferred stock.

Dividends on preferred stock and common stock during the fiscal years ended March 31, 2012, 2013 and 2014 were as follows:

2012	Cash dividends (1)
Class of stock	Per share		In aggregate (2)
	(in yen)		(in millions of yen)
Eleventh series class XI preferred stock		30		12,173
Thirteenth series class XIII preferred stock		45		1,651
Common stock		9		202,684
Total				216,508

2013	Cash dividends
Class of stock	Per share		In aggregate (2)
	(in yen)		(in millions of yen)
Eleventh series class XI preferred stock		20		7,451
Thirteenth series class XIII preferred stock		30		1,101
Common stock		6		144,170
Total				152,722

2014	Cash dividends
Class of stock	Per share		In aggregate (2)
	(in yen)		(in millions of yen)
Eleventh series class XI preferred stock		20		6,717
Thirteenth series class XIII preferred stock (3)		15		550
Common stock		6		144,998
Total				152,265

Notes:

(1) As MHFG commenced distributing an interim dividend from the fiscal year ended March 31, 2012, the amounts for the fiscal year include such interim dividends.

(2) Dividends paid on treasury stock are excluded.

(3) On July 11, 2013, MHFG acquired and cancelled all of the shares of the thirteenth series class XIII preferred stock. Consequently, the amount for the fiscal year does not include interim dividends.

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MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

16. Accumulated other comprehensive income (loss)

Changes in each component of AOCI for the fiscal years ended March 31, 2012, 2013 and 2014 are as follows:

	2012			2013			2014
	(in millions of yen)
AOCI, balance at beginning of fiscal year		104,972			245,588			777,997
Unrealized net gains (losses) on available-for-sale securities:
Balance at beginning of fiscal year		514,128			628,636			995,124
Unrealized holding gains (losses) during year		87,215			427,913			255,140
Less: reclassification adjustments for losses (gains) included in net income		27,293			(61,425	)		(126,992	)
Change during year		114,508			366,488			128,148
Balance at end of fiscal year		628,636			995,124			1,123,272
Foreign currency translation adjustments:
Balance at beginning of fiscal year		(165,028	)		(169,881	)		(82,420	)
Foreign currency translation adjustments during year		(6,779	)		87,460			75,986
Less: reclassification adjustments for losses (gains) included in net income		1,926			1			—
Change during year		(4,853	)		87,461			75,986
Balance at end of fiscal year		(169,881	)		(82,420	)		(6,434	)
Pension liability adjustments:
Balance at beginning of fiscal year		(244,128	)		(213,167	)		(134,707	)
Unrealized gains (losses) during year		14,711			67,795			131,360
Less: reclassification adjustments for losses (gains) included in net income		16,250			10,665			4,386
Change during year		30,961			78,460			135,746
Balance at end of fiscal year		(213,167	)		(134,707	)		1,039
Total other comprehensive income (loss), net of tax attributable to MHFG shareholders		140,616			532,409			339,880
AOCI, balance at end of fiscal year		245,588			777,997			1,117,877

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The following table shows the amounts reclassified out of AOCI into net income during the fiscal year ended March 31, 2014.

	Before tax (1)			Tax effect (2)			Net of tax before allocation to noncontrolling interests			Net of tax attributable to noncontrolling interests (2)			Net of tax attributable to MHFG shareholders
	(in millions of yen)
Amounts reclassified out of AOCI into net income:																Affected line items in the consolidated statements of income:
Unrealized net gains (losses) on available-for-sale securities		197,224			(70,228	)		126,996			4			126,992		Investment gains (losses)—net
Foreign currency translation adjustments		—			—			—			—			—
Pension liability adjustments		(6,877	)		2,442			(4,435	)		(49	)		(4,386	)	Salaries and employee benefits
Total		190,347			(67,786	)		122,561			(45	)		122,606

Notes:

(1) The amounts in the Before tax column are recorded in each account presented as “Affected line items in the consolidated statements of income”.

(2) The amounts in the Tax effect column and Net of tax attributable to noncontrolling interests column are recorded in Income tax expense and Net income attributable to noncontrolling interests in the consolidated statements of income respectively.

17. Regulatory matters

Regulatory capital requirements

MHFG, MHBK, and MHTB are subject to regulatory capital requirements administered by the Financial Services Agency in accordance with the provisions of the Banking Act and related regulations. Failure to meet minimum capital requirements may initiate certain mandatory actions by regulators that, if undertaken, could have a direct material effect on the MHFG Group’s consolidated financial condition and results of operations.

The capital adequacy guidelines applicable to Japanese banks and bank holding companies with international operations supervised by the Financial Services Agency closely follow the risk-adjusted approach proposed by the Bank for International Settlements (“BIS”) and are intended to further strengthen the soundness and stability of Japanese banks. Effective March 31, 2007, guidelines were implemented by the Financial Services Agency to comply with the capital adequacy requirements set by BIS called Basel II. The framework of Basel II is based on the following three pillars: minimum capital requirements; supervisory review; and market discipline.

In May 2011, the capital adequacy guidelines were revised by the Financial Services Agency to comply with the package of measures to enhance the Basel II framework approved by the Basel Committee on Banking Supervision in July 2009. The revised guidelines include the strengthening of rules governing trading book capital and the strengthening of treatment of certain securitizations under the first pillar. The revised guidelines have been effective since the end of December 2011.

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In December 2010, the Basel Committee on Banking Supervision issued the Basel III rules text (later revised in June 2011 and January 2013), which presents the details of global regulatory standards on bank capital adequacy and liquidity agreed by the Governors and Heads of Supervision, which is the oversight body of the Basel Committee on Banking Supervision, and endorsed by the G20 Leaders at the Seoul summit in November 2010. The rules text sets out higher and better-quality capital, better risk coverage, the introduction of a leverage ratio as a backstop to the risk-based requirement, measures to promote the build-up of capital that can be drawn down in periods of stress, and the introduction of two global liquidity standards. The Financial Services Agency’s revisions to its capital adequacy guidelines became effective from March 31, 2013, which generally reflect rules in the Basel III rules text that have been applied from January 1, 2013. While the three-pillar structure of Basel II has been retained, Basel III includes various changes as described further below.

Under the first pillar, the capital ratio is calculated by dividing regulatory capital, or risk-based capital, by risk-weighted assets. With respect to the calculation of risk-weighted assets, the MHFG Group adopts the advanced internal ratings-based approach. Under such approach, balance sheet assets and off-balance sheet exposures, calculated under Japanese GAAP, are assessed in terms of credit risk according to risk components such as probability of default and loss given default, which are derived from the Group’s own internal credit experience. In addition to credit risk, banks are required to measure and apply capital charges with respect to their market risks. Market risk is defined as the risk of losses in on- and off-balance-sheet positions arising from movements in market prices. Operational risk, which was introduced under Basel II with respect to regulatory capital requirements, is the risk of loss resulting from inadequate or failed internal processes, people and systems, or from external events. The Group adopts the advanced measurement approach for the measurement of operational risk equivalent by taking account of the following four elements: internal loss data; external loss data; scenario analysis; and business environment and internal control factors. Under Basel III, the calculation method of risk-weighted assets was revised, including modification to the treatment of counterparty credit risk, such as a capital charge for credit valuation adjustment risk.

With regard to risk-based capital, the guidelines based on Basel III set out higher and better-quality capital standards compared to those under Basel II. The guidelines based on Basel III require a target minimum standard capital adequacy ratio of 8%, Tier 1 capital ratio of 6% (phased in at 4.5% in 2013 and 5.5% in 2014) and Common Equity Tier 1 capital ratio of 4.5% (phased in at 3.5% in 2013 and 4.0% in 2014), on both a consolidated and non-consolidated basis for banks with international operations, such as MHBK and MHTB, or on a consolidated basis for bank holding companies with international operations, such as MHFG.

Risk-based capital, calculated from financial statements prepared under Japanese GAAP, is classified into the following two tiers: Tier 1 capital; and Tier 2 capital. Tier 1 capital consists of Common Equity Tier 1 capital and Additional Tier 1 capital. Common Equity Tier 1 capital generally consists of common stock, capital surplus, retained earnings, accumulated other comprehensive income and other disclosed reserves and others less any regulatory adjustments. Additional Tier 1 capital generally consists of instruments issued by a bank or its holding company that meet the criteria for inclusion in Additional Tier 1 capital and others less any regulatory adjustments. Tier 2 capital generally consists of instruments issued by a bank or its holding company such as subordinated debt that meet the criteria for inclusion in Tier 2 capital, general reserve for possible losses on loans, equaling the sum of (i) the excess of the amount of qualified reserves over the amount of expected losses and (ii) the amount of general reserves calculated based on the standardized approach, and others less any regulatory adjustments.

The minimum requirement for Common Equity Tier 1 capital will be raised in phases from 3.5% of risk-weighted assets in March 2013 to 4.5% when fully effective in March 2015. Thereafter, a capital conservation buffer, to be met with Common Equity Tier 1 capital, is expected to be phased in beginning March 2016 at 0.625% until becoming fully effective in March 2019 at 2.5%, although the capital adequacy guidelines related to

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the capital conservation buffer have not yet been published by the Financial Services Agency. Thus the Common Equity Tier 1 capital requirement, including capital conservation buffer, is expected to be 7.0% beginning March 2019. In addition, subject to national discretion by the respective regulatory authorities, a countercyclical buffer ranging from 0% to 2.5%, consisting of Common Equity Tier 1 capital or other fully loss absorbing capital, would also be imposed on banking organizations through an extension of the capital conservation buffer when the relevant national authority judges a period of excess credit growth to be leading to the build-up of system-wide risk. The countercyclical buffer for internationally active banks will be a weighted average of the buffers deployed across all the jurisdictions to which it has credit exposures. Moreover, capital instruments that will no longer qualify as Additional Tier 1 capital or Tier 2 capital under Basel III is being phased out beginning March 2013 by increments of 10% until becoming fully effective in March 2022. The MHFG Group’s existing preferred stock and preferred securities (the amounts thereof included within Additional Tier 1 capital as of March 31, 2014 being ¥1,666.5 billion) and the Group’s existing subordinated debt issued before March 2013 (the amounts thereof included within Tier 2 capital as of March 31, 2014 being ¥1,349.6 billion) are subject to the phase-out arrangements.

In November 2011, the Financial Stability Board announced policy measures to address systemically important financial institutions (“SIFIs”), which were endorsed by the G20 Leaders at the Cannes summit. The policy measures include requirements for globally systemically important banks (“G-SIBs”) to have additional loss absorption capacity tailored to the impact of their default, ranging from 1% to 2.5% of risk-weighted assets, to be met with Common Equity Tier 1 capital, which would be in addition to the 7.0% Common Equity Tier 1 capital requirement (including capital conservation buffer). The additional loss absorbency requirements will initially apply to G-SIBs identified in November 2014. The requirements will be phased in starting in January 2016 with full implementation by January 2019. Also in November 2011, the Financial Stability Board identified an initial group of G-SIFIs, namely 29 G-SIBs, including the MHFG Group, using a methodology developed by the Basel Committee on Banking Supervision, and announced that the group of G-SIFIs will be updated annually and published by the Financial Stability Board each November. In November 2012 and November 2013, the list of G-SIBs was updated and it showed the allocation to buckets corresponding to their required level of additional loss absorbency. The Group was included in the lists and was allocated to the bucket that would require 1.0% of additional loss absorbency.

Regulatory adjustments are to be applied mainly to the calculation of Common Equity Tier 1 capital in the form of the deductions and prudential filters related to the following:

• Goodwill and other intangibles

• Deferred tax assets

• Deferred gains or losses on derivatives under hedge accounting that relates to the hedging of items that are not fair valued on the balance sheet

• Shortfall of the stock of provisions to expected losses under the internal ratings-based approach

• Gain on sale related to securitization transactions

• Cumulative gains and losses due to changes in own credit risk on fair valued financial liabilities

• Defined benefit pension fund assets and liabilities

• Treasury stock

• Reciprocal cross holdings of capital of banking, financial and insurance entities

• Investments in the capital of banking, financial and insurance entities that are outside the scope of regulatory consolidation

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Regulatory adjustments will be fully deducted in the calculation of Common Equity Tier 1 capital by March 2018. The regulatory adjustments began at 20% of the required deductions in the calculation of Common Equity Tier 1 capital in March 2014 and will be increased by 20% increments per year through March 2018 when the regulatory adjustments reach 100%. During this transition period, the remainder not deducted from capital will continue to be subject to existing national treatments.

The capital requirements and regulatory adjustments will be phased in over a transitional period as follows (italicized percentages indicate those still in transition periods):

	March 2013			March 2014			March 2015			March 2016			March 2017			March 2018			March 2019			March 2020			March 2021			March 2022
Minimum Common Equity Tier 1 capital (Note)		3.5	%		4.0	%		4.5	%		4.5	%		4.5	%		4.5	%		4.5	%		4.5	%		4.5	%		4.5	%
Minimum Tier 1 capital (Note)		4.5	%		5.5	%		6.0	%		6.0	%		6.0	%		6.0	%		6.0	%		6.0	%		6.0	%		6.0	%
Minimum total capital (Note)		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%
Capital conservation buffer		0.0	%		0.0	%		0.0	%		0.625	%		1.25	%		1.875	%		2.5	%		2.5	%		2.5	%		2.5	%
Phase out of recognition of capital instruments that no longer qualify as capital (Note)		90.0	%		80.0	%		70.0	%		60.0	%		50.0	%		40.0	%		30.0	%		20.0	%		10.0	%		0.0	%
Phase-in of deductions from capital (Note)		0.0	%		20.0	%		40.0	%		60.0	%		80.0	%		100.0	%		100.0	%		100.0	%		100.0	%		100.0	%
Additional loss absorbency requirements for G-SIBs		—			—			—			Additional loss absorption capacity tailored to the impact of the entity’s default, ranging from 1% to 2.5% of risk-weighted assets, to be met with Common Equity Tier 1 capital

Note: While these measures are included in the revisions to capital adequacy guidelines that have been applied from March 31, 2013 as published by the Financial Services Agency, capital adequacy guidelines related to other requirements under the Basel III rules, such as the capital conservation buffer, countercyclical buffer and additional loss absorbency requirements for G-SIBs/G-SIFIs, have not yet been published.

Japanese banks are also required to comply with the supervisory review process (second pillar) and disclosure requirements for market discipline (third pillar). Under the second pillar, banks are required to maintain adequate capital to support all of the major risks in their business and are encouraged to develop and use better risk management techniques in monitoring and managing such risks. Under the third pillar, banks are required to enhance disclosure, including disclosure of details of the capital adequacy ratio, the amount of each type of risk and the method of calculation used so that the market may make more effective evaluations. Further, the revisions to the Financial Services Agency’s guidelines relating to the third pillar, which reflect the enhanced disclosure requirements under Basel III and became effective on March 31, 2013, require banks to disclose, among other things, the components of their regulatory capital and the main features of their regulatory capital instruments in common templates.

If the capital adequacy ratio of a financial institution falls below the required level, the Financial Services Agency may, depending upon the extent of capital deterioration, take certain corrective action, including requiring the financial institution to submit an improvement plan to strengthen its capital base, reduce its total assets, restrict its business operations or other actions that could have a material effect on its financial condition and results of operations.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Capital adequacy ratios of MHFG, MHBK, and MHTB as of March 31, 2013 and 2014 calculated in accordance with Japanese GAAP and guidelines established by the Financial Services Agency are set forth in the following table:

	2013				2014
	Amount		Ratio		Amount		Ratio
	(in billions of yen, except percentages)
Consolidated:
MHFG:
Common Equity Tier 1 capital:
Required		2,059		3.50		2,411		4.00
Actual		4,804		8.16		5,304		8.79
Tier 1 capital:
Required		2,647		4.50		3,316		5.50
Actual		6,487		11.02		6,845		11.35
Total risk-based capital:
Required		4,706		8.00		4,823		8.00
Actual		8,345		14.18		8,656		14.35
MHBK (Note):
Common Equity Tier 1 capital:
Required		—		—		2,130		4.00
Actual		—		—		5,387		10.11
Tier 1 capital:
Required		—		—		2,928		5.50
Actual		—		—		6,525		12.25
Total risk-based capital:
Required		—		—		4,259		8.00
Actual		—		—		8,180		15.36
MHTB:
Common Equity Tier 1 capital:
Required		91		3.50		103		4.00
Actual		344		13.24		379		14.76
Tier 1 capital:
Required		117		4.50		141		5.50
Actual		344		13.24		379		14.76
Total risk-based capital:
Required		208		8.00		205		8.00
Actual		448		17.21		457		17.80
Non-consolidated:
MHBK (Note):
Common Equity Tier 1 capital:
Required		—		—		2,072		4.00
Actual		—		—		5,260		10.15
Tier 1 capital:
Required		—		—		2,849		5.50
Actual		—		—		6,370		12.29
Total risk-based capital:
Required		—		—		4,144		8.00
Actual		—		—		8,072		15.58
MHTB:
Common Equity Tier 1 capital:
Required		90		3.50		101		4.00
Actual		345		13.45		375		14.76
Tier 1 capital:
Required		115		4.50		139		5.50
Actual		345		13.45		375		14.76
Total risk-based capital:
Required		205		8.00		203		8.00
Actual		446		17.43		451		17.79

Note: The former MHBK and the former MHCB merged on July 1, 2013 and the former MHCB, the surviving company, changed its trade name to MHBK.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Capital adequacy ratios of the former MHCB and the former MHBK as of March 31, 2013 are set forth in the following table:

	March 31, 2013
	Consolidated				Non-consolidated
	Amount		Ratio		Amount		Ratio
	(in billions of yen, except percentages)
The former MHCB (1):
Common Equity Tier 1 capital:
Required		1,292		3.50		1,143		3.50
Actual		3,195		8.65		2,993		9.16
Tier 1 capital:
Required		1,661		4.50		1,470		4.50
Actual		4,071		11.03		3,980		12.18
Total risk-based capital:
Required		2,953		8.00		2,613		8.00
Actual		5,130		13.89		5,008		15.33
The former MHBK (2) (3):
Common Equity Tier 1 capital:
Required		810		3.50		793		3.50
Actual		2,061		8.90		2,009		8.86
Tier 1 capital:
Required		1,041		4.50		1,020		4.50
Actual		2,344		10.13		2,252		9.93
Total risk-based capital:
Required		1,850		8.00		1,813		8.00
Actual		3,259		14.08		3,163		13.95

Notes:

(1) The distribution of all of the shares of MHSC to MHFG as a dividend in kind (¥424.4 billion) on April 1, 2013 was deducted from Common Equity Tier 1 capital.

(2) The amounts and ratios were calculated in accordance with Basel III and are included for reference purpose only because the former MHBK was subject to Basel II requirements as of March 31, 2013 as a financial institution without overseas operations to which only domestic capital adequacy requirements applied.

(3) The distribution of all of the shares of MHSC to MHFG as a dividend in kind (¥125.7 billion) on April 1, 2013 was deducted from Common Equity Tier 1 capital.

MHFG’s securities subsidiaries in Japan are also subject to the capital adequacy requirement under the Financial Instruments and Exchange Act. Under this requirement, securities firms must maintain a minimum capital adequacy ratio of 120% calculated as a percentage of capital accounts less certain assets, as determined in accordance with Japanese GAAP, against amounts equivalent to market, counterparty, and basic risks. Specific guidelines are issued as a ministerial ordinance that details the definition of essential components of the capital ratios, including capital, disallowed assets and risks, and related measures. Failure to maintain a minimum capital ratio will trigger mandatory regulatory actions. A capital ratio of less than 140% will call for regulatory reporting and a capital ratio of less than 100% may lead to a temporary suspension of all or part of the business operations and further, to the cancellation of the license to act as a securities broker and dealer.

Management believes, as of March 31, 2014, that MHFG, MHBK, MHTB, and their securities subsidiaries in Japan were in compliance with all capital adequacy requirements to which they were subject.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Business improvement orders

In September 2013, the Financial Services Agency issued a business improvement order to MHBK in connection with the transactions with anti-social elements in relation to a portion of certain joint loans. The business improvement order requires it to carry out promptly the measures to review, improve and reinforce the current structure of compliance and business administration thoroughly.

In December 2013, the Financial Services Agency issued business improvement orders to MHFG and MHBK with regard to the above mentioned transactions. The order to MHFG requires it to implement measures including clarification of where management responsibility lies based on the order and strengthening of its management control system. The order to MHBK requires it to cease new credit transactions under the four-party captive loan scheme for one month from January 20, 2014, as well as to implement the same measures as the order to MHFG.

The MHFG Group has been and will be rigidly implementing its improvement plans in relation to this problem and also work with utmost effort towards further improvement and reinforcement of its internal control systems.

18. Earnings per common share

Basic earnings per common share are computed by dividing net income by the weighted average number of common shares outstanding during the fiscal year. Diluted earnings per common share reflect the assumed conversion to common shares of all convertible securities such as convertible preferred stock.

The following table sets forth the computation of basic and diluted earnings per common share for the fiscal years ended March 31, 2012, 2013 and 2014:

	2012		2013		2014
	(in millions of yen)
Net income:
Net income attributable to MHFG shareholders		656,389		875,412		498,484
Less: Net income attributable to preferred shareholders		8,672		8,221		6,745
Net income attributable to common shareholders		647,717		867,191		491,739
Effect of dilutive securities:
Convertible preferred stock		7,571		7,121		6,437
Net income attributable to common shareholders after assumed conversions		655,288		874,312		498,176

	2012		2013		2014
	(thousands of shares)
Shares:
Weighted average common shares outstanding		23,073,544		24,053,282		24,189,670
Effect of dilutive securities:
Convertible preferred stock (Note)		1,384,367		1,291,854		1,164,941
Stock compensation-type stock options		11,628		20,093		16,641
Weighted average common shares after assumed conversions		24,469,539		25,365,229		25,371,252

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

	2012		2013		2014
	(in yen)
Amounts per common share:
Basic net income per common share		28.07		36.05		20.33
Diluted net income per common share		26.78		34.47		19.64

Note: The number of the dilutive common shares is based on the applicable conversion prices.

19. Income taxes

The following table presents the components of Income tax expense for the fiscal years ended March 31, 2012, 2013 and 2014:

	2012			2013			2014
	(in millions of yen)
Current:
Domestic		22,103			37,101			92,814
Foreign		32,714			10,754			42,919
Total current tax expense		54,817			47,855			135,733
Deferred:
Domestic		(36,777	)		(40,021	)		94,911
Foreign		(4,162	)		(3,810	)		(4,536	)
Total deferred tax expense		(40,939	)		(43,831	)		90,375
Total income tax expense		13,878			4,024			226,108

The preceding table does not reflect the tax effects of items recorded directly in Equity for the fiscal years ended March 31, 2012, 2013 and 2014. The detailed amounts recorded directly in Equity are as follows:

	2012		2013			2014
	(in millions of yen)
Unrealized net gains (losses) on available-for-sale securities:
Unrealized gains (losses)		29,925		235,274			161,269
Less: reclassification adjustments		18,249		(33,988	)		(70,228	)
Total		48,174		201,286			91,041
Pension liability adjustments:
Unrealized gains (losses)		2,367		34,171			71,646
Less: reclassification adjustments		8,992		5,913			2,442
Total		11,359		40,084			74,088
Total tax effect before allocation to noncontrolling interests		59,533		241,370			165,129

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The following table shows a reconciliation of Income tax expense at the effective statutory tax rate to the actual income tax expense for the fiscal years ended March 31, 2012, 2013 and 2014:

	2012			2013			2014
	(in millions of yen, except tax rates)
Income before income tax expense (benefit)		662,835			885,180			726,343
Effective statutory tax rate		40.69	%		38.01	%		38.01	%
Income tax calculated at the statutory tax rate		269,708			336,457			276,083
Income not subject to tax		(18,295	)		(18,320	)		(22,354	)
Expenses not deductible for tax purposes		1,469			1,348			1,550
Tax rate differentials of subsidiaries		(4,142	)		(10,535	)		(1,611	)
Change in valuation allowance		(371,271	)		(1,352,597	)		(50,933	)
Change in undistributed earnings of subsidiaries		(7,118	)		12,233			932
Change in net operating loss carryforwards resulting from intercompany capital transactions		162			227			235
Expiration of net operating loss carryforwards		33,576			1,026,439			6,313
Effect of enacted change in tax rates		107,011	(1)		—			15,786	(2)
Other		2,778			8,772			107
Income tax expense (benefit)		13,878			4,024			226,108

Notes:

(1) On November 30, 2011, the National Diet of Japan approved two bills affecting the statutory tax rates of MHFG and its domestic subsidiaries. As a result, the statutory tax rate concerning MHFG’s tax returns for the fiscal years ended March 31, 2013 and 2014 has been reduced to 38.01% from the previous rate of 40.69%. Also, the rates for the fiscal year ending March 31, 2015 and for the fiscal years ending March 31, 2016 and thereafter will be 38.01% and 35.64%, respectively. The decrease of the Group’s balance of net deferred tax assets, reflecting such tax rate reductions, was recognized in Income tax expense in the fiscal year ended March 31, 2012.

(2) On March 20, 2014, the National Diet of Japan approved a bill affecting the statutory tax rates of MHFG and its domestic subsidiaries. As a result, the statutory tax rate concerning MHFG’s tax returns for the fiscal year ending March 31, 2015 will be reduced to 35.64% from the previous rate of 38.01%. The decrease of the Group’s balance of net deferred tax assets, reflecting such tax rate reductions, was recognized in Income tax expense in the fiscal year ended March 31, 2014.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The components of net deferred tax assets at March 31, 2013 and 2014 are as follows:

	2013			2014
	(in millions of yen)
Deferred tax assets:
Investments		889,305			724,038
Allowance for loan losses		337,453			266,595
Derivative financial instruments		—			29,002
Trading account assets		—			19,842
Net operating loss carryforwards		450,016			448,926
Other		264,661			204,304
		1,941,435			1,692,707
Valuation allowance		(584,665	)		(443,847	)
Deferred tax assets, net of valuation allowance		1,356,770			1,248,860
Deferred tax liabilities:
Available-for-sale securities		567,608			659,448
Prepaid pension cost and accrued pension liabilities		39,937			132,738
Undistributed earnings of subsidiaries		11,040			11,972
Premises and equipment		12,304			11,263
Derivative financial instruments		35,391			—
Trading account assets		11,101			—
Other		51,913			61,500
Deferred tax liabilities		729,294			876,921
Net deferred tax assets		627,476			371,939

Deferred tax assets and deferred tax liabilities within the same tax jurisdiction have been netted for presentation purposes in the consolidated balance sheets.

In assessing the realizability of deferred tax assets, management considered whether it was more likely than not that some portion or all of the deferred tax assets would not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considered the scheduled reversal of deferred tax liabilities, projected future taxable income, and tax planning strategies available in making this assessment. Based upon the level of historical taxable income and projections for future taxable income over the periods in which the deferred tax assets would be deductible, management believed it was more likely than not that the MHFG Group would realize the benefits of these deductible differences, net of the existing valuation allowances at March 31, 2013 and 2014.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

At March 31, 2014, the MHFG Group had net operating loss carryforwards totaling ¥1,414 billion. These carryforwards are scheduled to expire as follows:

	Net operating loss carryforwards
	(in billions of yen)
Fiscal year ending March 31:
2015		—
2016		—
2017		—
2018		865
2019		8
2020 and thereafter		541
Total		1,414

Included in net operating loss carryforwards in the above table are MHFG’s carryforwards of ¥868 billion resulting mainly from intercompany capital transactions. The tax effect of these carryforwards is offset by a full valuation allowance.

The total amount of unrecognized tax benefits including ¥802 million, ¥563 million and ¥699 million of interest and penalties was ¥2,160 million, ¥1,454 million and ¥1,691 million at March 31, 2012, 2013 and 2014, respectively, which would, if recognized, affect the Group’s effective tax rate. The Group classifies interest and penalties accrued relating to unrecognized tax benefits as Income tax expense.

The following table is a roll-forward of unrecognized tax benefits for the fiscal years ended March 31, 2012, 2013 and 2014:

	2012			2013			2014
	(in millions of yen)
Total unrecognized tax benefits at beginning of fiscal year		1,829			2,160			1,454
Gross amount of increases (decreases) related to positions taken during prior years		362			(471	)		(6	)
Gross amount of increases related to positions taken during the current year		244			29			100
Amount of decreases related to settlements		(227	)		(559	)		—
Foreign exchange translation		(48	)		295			143
Total unrecognized tax benefits at end of fiscal year		2,160			1,454			1,691

The MHFG Group is currently subject to ongoing tax audits in some jurisdictions. The oldest years open to tax audits in Japan, the United States and the United Kingdom are 2006, 2002 and 2002, respectively. The MHFG Group does not anticipate that increases or decreases of unrecognized tax benefits within the next twelve months would have a material effect on its consolidated results of operations or financial condition.

20. Pension and other employee benefit plans

Severance indemnities and pension plans

MHFG and certain subsidiaries sponsor and offer their employees other than directors and corporate auditors, contributory and non-contributory defined benefit plans. Under these plans, employees are provided with lump-

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

sum cash payments upon leaving the company. The amount of benefits under each plan is principally determined based on the position, the length of service and the reason for retirement. When employees meet certain conditions including the length of service, they may opt to receive annuity payments instead of lump-sum payments at retirement. MHFG and certain subsidiaries also offer special termination benefits to former employees whose contributions during their careers were deemed meritorious and to those with particular circumstances.

Certain foreign offices and subsidiaries have defined contribution plans and/or defined benefit plans, of which disclosures are combined with those for domestic benefit plans, as they are not significant.

MHFG and certain subsidiaries have several defined contribution plans. The costs recognized in respect of contributions to the plans for the fiscal years ended March 31, 2012, 2013 and 2014 were ¥2,129 million, ¥1,968 million and ¥2,487 million, respectively.

Pension plans are not fully integrated among subsidiaries of MHFG and plan assets are managed separately by each plan.

Net periodic benefit cost and funded status

Net periodic benefit cost of the severance indemnities and pension plans for the fiscal years ended March 31, 2012, 2013 and 2014 includes the following components:

	2012			2013			2014
	(in millions of yen)
Service cost-benefits earned during the fiscal year		27,734			30,422			33,429
Interest costs on projected benefit obligation		24,267			23,186			20,341
Expected return on plan assets		(28,234	)		(32,237	)		(37,047	)
Amortization of prior service benefit		(318	)		(319	)		(195	)
Amortization of net actuarial loss (gain)		25,595			16,936			7,039
Special termination benefits (Note)		14,115			5,454			5,429
Net periodic benefit cost		63,159			43,442			28,996

Note: The amount for the fiscal year ended March 31, 2012 includes special termination benefits of ¥9,828 million pertaining to MHSC’s voluntary retirement scheme.

Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss) before-tax for the fiscal years ended March 31, 2013 and 2014 were summarized as follows:

	2013			2014
	(in millions of yen)
Net actuarial gain (loss)		103,683			204,506
Amortization of net actuarial loss (gain)		16,936			7,039
Prior service benefit (cost)		(1,782	)		—
Amortization of prior service benefit		(319	)		(195	)
Total recognized in other comprehensive income (loss) before-tax		118,518			211,350

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

As of March 31, 2014, the amounts in Accumulated other comprehensive income (loss), which will be amortized as prior service benefit and actuarial loss over the next fiscal year, are estimated to be ¥195 million and ¥137 million, respectively.

Weighted-average assumptions used to determine benefit obligations and net periodic benefit cost are as follows:

	2012			2013			2014
Weighted-average assumptions used to determine benefit obligations at fiscal year end:
Discount rates		1.73	%		1.44	%		0.96	%
Rates of increase in future compensation levels		2.33-6.46	%		2.31-6.57	%		2.00-4.80	%
Weighted-average assumptions used to determine net periodic benefit cost during the year:
Discount rates		1.83	%		1.73	%		1.44	%
Rates of increase in future compensation levels		2.28-6.15	%		2.33-6.46	%		2.31-6.57	%
Expected rates of return on plan assets		2.27	%		2.40	%		2.42	%

In estimating the discount rates, the MHFG Group uses interest rates on high-quality fixed-income government and corporate bonds that received a rating of AA(Aa) or higher from rating agencies. The durations of such bonds closely match those of the benefit obligations. During the fiscal year ended March 31, 2014, the Group has changed the calculation method of the discount rates and has revised the benefit formula for some major plans to refine the estimate of benefit obligations. As a result of these refinements, total benefit obligations of the Group, at March 31, 2014, decreased by ¥110,744 million. Assumed discount rates are reevaluated at each measurement date. The expected rate of return for each asset category is based primarily on various aspects of the long-term prospects for the economy that include historical performance and the market environment.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The following table sets forth the combined funded status and amounts recognized in the accompanying consolidated balance sheets at March 31, 2013 and 2014 for the plans of MHFG and its subsidiaries:

	2013			2014
	(in millions of yen)
Change in benefit obligation:
Benefit obligation at beginning of fiscal year		1,343,714			1,399,123
Service cost		30,422			33,429
Interest cost		23,186			20,341
Plan participants’ contributions		1,184			1,181
Amendments		1,782			—
Actuarial loss (gain)		63,140			(70,214	)
Foreign exchange translation		2,209			4,854
Benefits paid		(49,593	)		(49,905	)
Lump-sum payments		(16,921	)		(18,119	)
Benefit obligation at end of fiscal year		1,399,123			1,320,690
Change in plan assets:
Fair value of plan assets at beginning of fiscal year		1,323,163			1,527,744
Actual return (negative return) on plan assets		199,341			171,970
Foreign exchange translation		1,783			4,128
Employer contributions		51,866			50,936
Plan participants’ contributions		1,184			1,181
Benefits paid		(49,593	)		(49,905	)
Fair value of plan assets at end of fiscal year		1,527,744			1,706,054
Funded status		128,621			385,364
Amounts recognized in the consolidated balance sheets consist of:
Prepaid pension cost		153,414			403,654
Accrued pension liability		(24,793	)		(18,290	)
Net amount recognized		128,621			385,364
Amounts recognized in Accumulated other comprehensive income (loss) before-tax consist of:
Prior service benefit (cost)		(440	)		(635	)
Net actuarial gain (loss)		(236,359	)		(24,814	)
Net amount recognized		(236,799	)		(25,449	)

Note: The aggregated accumulated benefit obligations of these plans were ¥1,364,786 million and ¥1,319,771 million, respectively, as of March 31, 2013 and 2014. The defined benefit plans generally employ a multi-variable and non-linear formula based upon rank and years of service. Employees with service in excess of one year are qualified to receive lump-sum severance indemnities.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The following table shows the projected benefit obligations and the fair value of plan assets for the plans of MHFG and its subsidiaries with projected benefit obligations in excess of plan assets, and the accumulated benefit obligations and the fair value of plan assets for the plans with accumulated benefit obligations in excess of plan assets at March 31, 2013 and 2014:

	2013		2014
	(in millions of yen)
Plans with projected benefit obligations in excess of plan assets:
Projected benefit obligation		95,789		40,509
Fair value of plan assets		70,690		21,898
Plans with accumulated benefit obligations in excess of plan assets:
Accumulated benefit obligation		91,210		39,590
Fair value of plan assets		70,690		21,898

Note: The plans with projected benefit obligations in excess of plan assets include those with accumulated benefit obligations in excess of plan assets.

Investment policies and asset allocation

In managing plan assets, the MHFG Group determines the appropriate levels of risk that the Group can assume under the given circumstances to maximize the investment returns from a long-term perspective while ensuring that the sufficient funds will be available to plan participants and beneficiaries. Generally, the investment returns are relative to the risks involved. In considering the maximum levels of risk that the MHFG Group can assume, it primarily considers the following factors; the employers’ burden of maintaining the benefit plans based on the design of the plans and future plan contributions, the age distribution of the plan participants and beneficiaries, the financial conditions of the employers, and the employers’ ability to absorb future variability in plan premiums. The long-term asset allocation to each asset category such as Japanese equity securities, Japanese debt securities, foreign equity securities and foreign debt securities is determined based upon the optimal portfolio, which is estimated to yield the maximum return within the range of acceptable level of risk. Additionally, the asset allocation is reviewed whenever there are large fluctuations in pension plan liabilities caused by modifications of pension plans, or there are changes in the market environment. When selecting an investment in each asset category, the MHFG Group takes into consideration credit standing of an investee, concentration of credit risk to a certain investee, liquidity of a financial instrument, etc. The investments in each asset category are further diversified across funds, strategies, sectors, etc. There is no significant investment in a single investee except Japanese government bonds.

Certain subsidiaries of MHFG established employee retirement benefit trusts and transferred their assets to the trusts as plan assets. These assets are separated from the employer’s proprietary assets for the payment to the plan beneficiaries. The assets held in these trusts are primarily Japanese equity securities and have been entrusted directly to qualified trustees including trust banks.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

MHFG and certain subsidiaries’ target allocation for the plan assets excluding those of the employee retirement benefit trusts at March 31, 2014 is as follows:

Asset category	Asset ratio
Japanese equity securities		5.00	%
Japanese debt securities		44.00	%
Foreign equity securities		26.00	%
Foreign debt securities		10.00	%
General account of life insurance companies		14.00	%
Other		1.00	%
Total		100.00	%

Note: General account of life insurance companies is a contract with life insurance companies which guarantees payments of principal and predetermined interest rate.

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MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Fair value of plan assets

The following table presents the fair value of plan assets of MHFG and its subsidiaries at March 31, 2013 and 2014, by asset class. For the detailed information on fair value measurements, including descriptions of Level 1, 2 and 3 of the fair value hierarchy and the valuation methodologies, see Note 28 “Fair value”.

	2013										2014
	Level 1			Level 2			Level 3		Total		Level 1			Level 2			Level 3		Total
	(in billions of yen)
Japanese equity securities:
Common stocks (1)		716			—			—		716		782			—			—		782
Pooled funds (2)		—			86			—		86		5			51			—		56
Japanese debt securities:
Government bonds		179			—			—		179		229			—			—		229
Pooled funds (2)		—			46			—		46		—			68			—		68
Other		—			7			—		7		—			24			—		24
Foreign equity securities:
Common stocks		54			2			—		56		96			3			—		99
Pooled funds (2)		—			92			—		92		15			139			—		154
Foreign debt securities:
Government bonds		71			4			—		75		63			6			—		69
Pooled funds (2)		—			46			—		46		—			9			—		9
Other		—			23			—		23		—			15			—		15
General account of life insurance companies (3)		—			111			—		111		—			111			—		111
Hedge funds		—			—			1		1		—			—			2		2
Other		92	(4)		(2	)(5)		—		90		91	(4)		(3	) (5)		—		88
Total assets at fair value		1,112			415			1		1,528		1,281			423			2		1,706

Notes:

(1) This class includes equity securities held in the employee retirement benefit trusts of ¥681 billion and ¥782 billion at March 31, 2013 and 2014, respectively, which are well-diversified across industries.

(2) These classes primarily include pension investment fund trusts. Investments in these classes are generally measured at their net asset values per share and can be redeemable within a short-term period upon request.

(3) Investments in this class are measured at conversion value.

(4) Amounts primarily include cash and short-term assets carried at fair value.

(5) Amounts primarily include foreign exchange contracts carried at fair value.

Amounts of actual returns on and purchases and sales of Level 3 assets during the fiscal years ended March 31, 2013 and 2014 were not significant.

Contributions

A contribution of approximately ¥49 billion is expected to be paid to the pension plans in the fiscal year ending March 31, 2015, based on the current funded status and expected asset return assumptions.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Estimated future benefit payments

The following table presents forecasted benefit payments including the effect of expected future service for the fiscal years indicated:

	(in millions of yen)
Fiscal year ending March 31:
2015		65,570
2016		68,183
2017		70,083
2018		71,558
2019		72,543
2020-2024		355,295

21. Stock-based compensation

Concurrently with the abolishment of, and as an alternative to the retirement allowances program for directors and executive officers of MHFG, the former MHBK, the former MHCB, and MHTB, the MHFG Group introduced stock compensation-type stock options, in the form of stock acquisition rights, for directors (excluding the outside directors) and executive officers of the respective companies (hereinafter referred to collectively as the “Directors”) in June 2008. The Group also introduced similar stock compensation-type stock options for MHSC’s Directors in June 2009. The Group maintained three types of stock-based compensation plans for Directors of MHFG, the former MHBK and the former MHCB (“MHFG Stock Plan”), for those of MHTB, and for those of MHSC. These three plans were integrated into MHFG Stock Plan during the fiscal year ended March 31, 2012, as MHTB and MHSC became MHFG’s wholly-owned subsidiaries and the stocks of these entities were delisted.

MHFG Stock Plan

In this plan, 1,000 shares of MHFG common stock shall be issued or transferred upon exercise of each of the stock acquisition rights. The amount to be paid upon exercise shall be 1 yen per share. The contractual term of the stock acquisition rights is 20 years. A holder may exercise the stock acquisition rights only after the date on which such holder loses the status as a Director of MHFG, MHBK, MHTB or MHSC.

The following is a roll-forward of MHFG Stock Plan for the fiscal year ended March 31, 2014:

	Number of shares		Weighted-average exercise price		Weighted-average remaining contractual term		Aggregate intrinsic value
			(in yen)		(in years)		(in millions of yen)
Outstanding at beginning of fiscal year		23,863,000		1
Granted during fiscal year		7,932,000		1
Exercised during fiscal year		9,252,000		1
Outstanding at end of fiscal year		22,543,000		1		18.47		4,576
Exercisable at end of fiscal year		630,000		1		16.31		128

There were no non-vested stock options remaining as of March 31, 2014.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The following table presents the assumptions used in the Black-Scholes option pricing model to estimate the fair value of stock acquisition rights on the date of grant. The risk-free interest rate is based on the Japanese government bonds yield curve for the expected remaining term in effect at the date of grant. The expected volatility is based on the historical trading data of MHFG common stock. The expected remaining term is based on the average service period of Directors of MHFG, MHBK, MHTB and MHSC, which represents the period of time that stock acquisition rights granted are expected to be outstanding. The expected dividend yield is based on the dividend rate of MHFG common stock at the date of grant.

	For the stock acquisition rights granted during the fiscal years ended March 31,
	2013			2014
Risk-free interest rate		0.10	%		0.08	%
Expected volatility		29.30	%		28.16	%
Expected remaining term (in years)		2.42			2.46
Expected dividend yield		4.69	%		3.11	%

The weighted-average grant-date fair value of stock acquisition rights granted during the fiscal years ended March 31, 2012, 2013 and 2014 was ¥91,840, ¥113,250 and ¥192,610, respectively.

The compensation cost related to this plan recognized in income was ¥788 million, ¥1,333 million and ¥1,527 million during the fiscal years ended March 31, 2012, 2013 and 2014, respectively.

22. Derivative financial instruments

The MHFG Group enter into derivative financial instruments in response to the diverse needs of customers, to control the risk related to the assets and liabilities of the MHFG Group, as part of its asset and liability management, and for proprietary trading purposes. The MHFG Group is exposed primarily to market risk associated with interest rate, commodity, foreign currency, and equity products. Market risk arises from changes in market prices or indices, interest rates and foreign exchange rates that may result in an adverse change in the market value of the financial instrument or an increase in its funding costs. Exposure to market risk is managed by imposing position limits and monitoring procedures and by initiating hedging transactions. In addition to market risk, the MHFG Group is exposed to credit risk associated with counterparty default or nonperformance in respect of transactions. Credit risk arises when a counterparty fails to perform according to the terms and conditions of the contract and the value of the underlying collateral held, if applicable, is not sufficient to recover resulting losses. The exposure to credit risk is measured by the fair value of all derivatives in a gain position and its potential increase at the balance sheet dates. The exposure to credit risk is managed by entering into legally enforceable master netting agreements to mitigate the overall counterparty credit risk, requiring underlying collateral and guarantees based on an individual credit analysis of each obligor and evaluating the credit features of each instrument. In addition, credit approvals, limits and monitoring procedures are also imposed.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Notional amount and fair value of derivative contracts

The following table summarizes the notional and fair value amounts of derivative instruments outstanding as of March 31, 2013 and 2014. The fair values of derivatives are presented on a gross basis and not offset against the right to reclaim cash collateral or the obligation to return cash collateral under master netting agreements in the consolidated balance sheets, or the table below.

			Fair value
			Derivative receivables (2)				Derivative payables (2)
2013	Notional amount (1)		Designated as hedges		Not designated as hedges		Designated as hedges		Not designated as hedges
	(in billions of yen)
Interest rate contracts		854,698		—		10,350		—		10,018
Foreign exchange contracts		118,708		—		3,099		10		2,973
Equity-related contracts		3,419		—		182		—		177
Credit-related contracts		5,266		—		59		—		44
Other contracts		522		—		38		—		27
Total		982,613		—		13,728		10		13,239
			Fair value
			Derivative receivables (2)				Derivative payables (2)
2014	Notional amount (1)		Designated as hedges		Not designated as hedges		Designated as hedges		Not designated as hedges
	(in billions of yen)
Interest rate contracts		971,939		—		8,064		—		7,895
Foreign exchange contracts		119,864		—		2,354		2		2,349
Equity-related contracts		2,979		1		196		—		178
Credit-related contracts		4,662		—		49		—		34
Other contracts		463		—		23		—		17
Total		1,099,907		1		10,686		2		10,473

Notes:

(1) Notional amount represents the sum of gross long and gross short third-party contracts.

(2) Derivative receivables and payables are recorded in Trading account assets and Trading account liabilities, respectively.

The MHFG Group provided and/or accepted cash collateral for derivative transactions under master netting agreements. The cash collateral, not offset against derivative positions, was included in Other assets and Other liabilities, respectively, of which the amounts were ¥742 billion and ¥503 billion at March 31, 2013, and ¥466 billion and ¥433 billion at March 31, 2014, respectively.

Hedging activities

In order to qualify for hedge accounting, a derivative must be considered highly effective at reducing the risk associated with the exposure being hedged. Each derivative must be designated as a hedge, with documentation of the risk management objective and strategy, including identification of the hedging instrument, the hedged item and the risk exposure, and how effectiveness is to be assessed prospectively and retrospectively. The extent to which a hedging instrument is effective at achieving offsetting changes in fair value or cash flows must be assessed at least quarterly. Any ineffectiveness must be reported immediately in earnings. The MHFG Group’s hedging activities include fair value and net investment hedges.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Fair value hedges

The MHFG Group primarily uses option and forward contracts to modify exposure to changes in fair value of available-for-sale securities. For qualifying fair value hedges, all changes in the fair value of the derivative and the corresponding hedged item relating to the risk being hedged are recognized in earnings in Investment gains (losses)—net. The change in fair value of the portion of the hedging instruments excluded from the assessment of hedge effectiveness is recorded in Trading account gains (losses)—net. No ineffectiveness exists because the MHFG Group chooses to exclude changes in the option’s time value and differences between the spot and the forward prices from the effectiveness test. If the hedge relationship is terminated, the fair value adjustment to the hedged item continues to be reported as part of the basis of the item and is amortized to earnings as a yield adjustment.

The following table summarizes gains and losses information related to fair value hedges for the fiscal years ended March 31, 2012, 2013 and 2014:

	Gains (losses) recorded in income
2012	Derivatives			Hedged items			Hedge ineffectiveness		Net gain (loss) excluded from assessment of effectiveness
	(in millions of yen)
Interest rate contracts		(214	)		150			—		(64	)
Equity-related contracts		(285	)		278			—		(7	)
Total		(499	)		428			—		(71	)
	Gains (losses) recorded in income
2013	Derivatives			Hedged items			Hedge ineffectiveness		Net gain (loss) excluded from assessment of effectiveness
	(in millions of yen)
Interest rate contracts		44			(81	)		—		(37	)
Equity-related contracts		352			(394	)		—		(42	)
Total		396			(475	)		—		(79	)
	Gains (losses) recorded in income
2014	Derivatives			Hedged items			Hedge ineffectiveness		Net gain (loss) excluded from assessment of effectiveness
	(in millions of yen)
Equity-related contracts		801			(1,112	)		—		(311	)
Total		801			(1,112	)		—		(311	)

Net investment hedges

The MHFG Group uses forward foreign exchange contracts and foreign currency-denominated debt instruments to protect the value of net investments in non-Japanese subsidiaries from foreign currency exposure. Under net investment hedges, both derivatives and nonderivative financial instruments qualify as hedging instruments. The foreign currency-denominated debt instruments qualifying as hedging instruments include deposits and long-term debt, of which the carrying amounts of the portion designated as net investment hedges are included within the respective items in the consolidated balance sheets as well as relevant accompanying notes. For net investment hedges, the changes in the fair value of a hedging derivative instrument or nonderivative hedging financial

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

instrument is recorded in Foreign currency translation adjustments within Accumulated other comprehensive income (loss), provided that the hedging instrument is designated and is effective as a hedge of the net investment. The change in fair value of the ineffective portion is recorded in Foreign exchange gains (losses)—net in earnings. No amount is excluded from the assessment of hedge effectiveness of net investment hedges.

The following table summarizes gains and losses information related to net investment hedges for the fiscal years ended March 31, 2012, 2013 and 2014:

	Gains (losses) recorded in income and other comprehensive income (“OCI”)
	2012				2013						2014
	Effective portion recorded in OCI		Ineffective portion recorded in income		Effective portion recorded in OCI			Ineffective portion recorded in income			Effective portion recorded in OCI			Ineffective portion recorded in income
	(in millions of yen)
Financial instruments hedging foreign exchange risk		8,024		1,666		(65,851	)		(2,908	)		(102,150	)		(7,316	)
Total		8,024		1,666		(65,851	)		(2,908	)		(102,150	)		(7,316	)

Note: Related to the effective portion of net investment hedges, Accumulated other comprehensive income of ¥1,893 million and ¥13,858 million were reclassified to earnings for the fiscal years ended March 31, 2012 and 2013 respectively. No amount related to the effective portion of net investment hedges was reclassified from Accumulated other comprehensive income (loss) to earnings for the fiscal year ended March 31, 2014.

Derivative instruments not designated or qualifying as hedges

The MHFG Group enters into the following derivative transactions that do not qualify for hedge accounting with a view to implementing risk management hedging strategies: (1) interest-rate swap transactions for the purpose of hedging interest-rate risks in deposits, loans etc., (2) currency swap transactions for the purpose of hedging the foreign exchange risk of these assets, and (3) credit derivatives for the purpose of hedging the credit risk in loans, RMBS, CMBS, CLO and other similar assets. Such derivatives are accounted for as trading positions. The changes in fair value of these instruments are primarily recorded in Trading account gains (losses)—net, even though they are used to mitigate or transform the risk of exposures arising from banking activities. The net gain (loss) resulting from changes in the fair value of certain credit derivatives where the Group purchases protection to mitigate its credit risk exposure, related to its corporate loan portfolio, is recorded in Other noninterest income (expenses).

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The following table summarizes gains and losses on derivatives not designated or qualifying as hedges during the fiscal years ended March 31, 2012, 2013 and 2014:

	Gains (losses) recorded in income
	2012			2013			2014
	(in millions of yen)
Interest rate contracts (1)		261,632			219,422			(79,562	)
Foreign exchange contracts		(146,258	)		(91,300	)		(13,167	)
Equity-related contracts (1)		(7,143	)		(59,421	)		(41,296	)
Credit-related contracts (2)		(5,575	)		(6,877	)		(7,761	)
Other contracts		283			(2,378	)		(6,857	)
Total		102,939			59,446			(148,643	)

Notes:

(1) The net gain (loss) excluded from the assessment of the effectiveness of fair value hedges is not included in the above table.

(2) Amounts include the net loss of ¥3,391 million, ¥6,703 million and ¥8,660 million on the credit derivatives hedging the credit risk of loans during the fiscal years ended March 31, 2012, 2013 and 2014, respectively.

Credit derivatives

A credit derivative is a bilateral contract between a seller and a buyer of protection against the credit risk of a particular entity. Credit derivatives generally require that the seller of credit protection make payments to the buyer upon the occurrence of predefined credit events, which include bankruptcy, dissolution or insolvency of the referenced entity. The MHFG Group either purchases or writes protection on either a single name or a portfolio of reference credits. The Group enters into credit derivatives to help mitigate credit risk in its corporate loan portfolio and other cash positions, to take proprietary trading positions, and to facilitate client transactions.

The notional amount of credit derivatives represents the maximum potential amount of future payments the seller could be required to make. If the predefined credit event occurs, the seller will generally have a right to collect on the underlying reference credit and any related cash flows, while being liable for the full notional amount of credit protection to the buyer. The Group manages credit risk associated with written protection by purchasing protection with identical or similar underlying reference credits, which substantially offsets its exposure. Thus, the notional amount is not necessarily a reliable indicator of the Group’s actual loss exposure.

The following table summarizes the notional and fair value amounts of credit derivatives at March 31, 2013 and 2014:

	2013				2014
	Notional amount		Fair value		Notional amount		Fair value
	(in billions of yen)
Credit protection written:
Investment grade		1,810		1		1,723		21
Non-investment grade		652		1		479		3
Total		2,462		2		2,202		24
Credit protection purchased		2,870		13		2,548		(9	)

Note: The rating scale is based upon either the external ratings or the internal ratings of the underlying reference credit. The lowest investment grade rating is considered to be BBB^- or the corresponding internal rating, while anything below or unrated is considered to be non-investment grade. Non-investment grade credit derivatives primarily consist of unrated credit default swap indices such as CDX and iTraxx.

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The following table shows the maximum potential amount of future payments for credit protection written by expiration period at March 31, 2013 and 2014:

	Maximum payout/Notional amount
	2013		2014
	(in billions of yen)
One year or less		620		325
After one year through five years		1,720		1,791
After five years		122		86
Total		2,462		2,202

Note: The maximum potential amount of future payments is the aggregate notional amount of the credit derivatives where the Group wrote the credit protection, and it has not been reduced by the Group’s right of collection over the underlying assets and the related cash flows, nor netted against that of credit protection purchased.

Credit-related contingent features

Certain of the MHFG Group’s derivative instruments contain provisions that require the Group’s debt to maintain an investment grade credit rating from the major credit rating agencies. If the Group’s debt credit rating were to fall below investment grade, the counterparties to the derivative instruments could request immediate payment or demand immediate and ongoing full overnight collateralization on derivative instruments which are in net liability positions for the Group. The aggregate fair value of all derivative instruments with such credit-risk-related contingent features in net liability positions on March 31, 2013 and 2014 was ¥1,022 billion and ¥687 billion, respectively. As the Group has provided ¥1,029 billion and ¥614 billion as collateral to the counterparties in the normal course of its business on March 31, 2013 and 2014, respectively, if the contingent features described above were triggered on March 31, 2013 and 2014, there was no amount that the Group would be required to post as collateral or settle immediately on March 31, 2013, while the amount required to be posted as collateral or settled immediately would be ¥73 billion on March 31, 2014.

23. Commitments and contingencies

Obligations under guarantees

The MHFG Group provides guarantees or indemnifications to counterparties to enhance their credit standing and enable them to complete a variety of business transactions. A guarantee represents an obligation to make payments to third parties if the counterparty fails to fulfill its obligation under a borrowing arrangement or other contractual obligation.

The types of guarantees under ASC 460, “Guarantees” (“ASC 460”) provided by the MHFG Group are described below.

Performance guarantees

Performance guarantees are issued to guarantee customers’ performance under contractual arrangements such as a tender bid on a construction project or the completion of a construction project.

Guarantees on loans

Guarantees on loans include obligations to guarantee the customers’ borrowing contracts. The MHFG Group is required to make payments to the guaranteed parties in the event that customers fail to fulfill obligations under the contracts.

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Guarantees on securities

Guarantees on securities include obligations to guarantee securities, such as bonds issued by customers.

Other guarantees

Other guarantees include obligations to guarantee customers’ payments, such as tax payments.

Guarantees for the repayment of trust principal

The MHFG Group provides certain trust products with guarantees for the repayment of trust principal, e.g., loan trusts and certain jointly operated designated money trusts. Pursuant to Japanese trust-related laws, trustees are prohibited from compensating beneficiaries for any loss in the beneficial interests in each trust. However, under a special condition of the Japanese trust-related laws, trust banks as trustees are allowed to enter into an agreement to provide compensation for any loss in the principal of the trust. The MHFG Group manages and administers the trust assets to minimize exposures against losses from the guarantees for the repayment of trust principal, including writing-off impaired loans and charging it to the trust account profits. In performing its fiduciary duties, the MHFG Group also manages the trust assets separately from its own proprietary assets on behalf of customers and keeps separate records for the trust activities. The MHFG Group consolidates certain guaranteed principal money trusts. See Note 25 “Variable interest entities and securitizations” for further discussion of the guaranteed principal money trust. The contract amounts of guarantees for repayment of unconsolidated trust principal are presented in the tables below.

Part of the trust account profits is set aside as a reserve in trust accounts to absorb losses in the trust asset portfolios in accordance with relevant Japanese laws concerning the trust business and/or trust agreements. Statutory reserves for loan trusts and reserves for jointly operated designated money trusts are calculated based on the trust principal or the balance of loans and other assets in the trust accounts. Since the probability of principal indemnification is judged to be remote, the MHFG Group had no related reserve for credit losses recorded in its consolidated financial statements.

Liabilities of trust accounts

The MHFG Group, as trustee, may enter into an agreement with a third party who is not the party to the relevant trust agreement to the extent necessary to handle the trust affairs for the purpose of fulfilling the objectives of the trust and, as such, the trustee shall be allowed to assume certain liabilities. Pursuant to Japanese trust-related laws, the trustee is ultimately liable to pay those liabilities out of its proprietary assets in the event that the trust assets are insufficient to cover those liabilities. The amount of trust liabilities rarely exceeds the amount of trust assets and, therefore, those liabilities are generally covered by the corresponding trust assets. To avoid the demand for payment out of the proprietary assets, the trustee can enter into a special covenant of limited liability under which the trust creditors agree to limit the trustee’s liability to the value of the trust assets and to waive the right for compulsory execution against the trustee’s proprietary assets. The MHFG Group regularly monitors the condition of trust accounts to minimize exposures against making payment.

The amounts of such liabilities in the trust accounts, excluding those with the special covenant of limited liability, are presented in the tables below. Liabilities of trust accounts principally include obligations to return collateral under security lending transactions and other transactions.

Derivative financial instruments

Certain written options and credit default swaps are deemed guarantees pursuant to the definition of guarantees in ASC 460 if these contracts require the MHFG Group to make payments to counterparties based on changes in an

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underlying instrument or index that is related to an asset, a liability, or an equity security of the counterparties. The MHFG Group’s payments could involve a gross settlement or a net settlement. Because it is difficult in practice to determine whether the counterparty has the asset, the liability or the equity security relating to the underlying, the MHFG Group has decided to include all credit default swaps and written options, excluding written options outside the scope of ASC 460, in the guarantee disclosures.

Carrying amount

The MHFG Group records all guarantees and similar obligations subject to ASC 460 at fair value on the consolidated balance sheets at the inception of the guarantee. The total carrying amount of guarantees and similar obligations at March 31, 2013 and 2014 was ¥512 billion and ¥ 422 billion, respectively, and was included in Other liabilities and Trading account liabilities. The total includes the carrying amounts of derivatives that are deemed to be guarantees, which amounted to ¥493 billion and ¥404 billion at March 31, 2013 and 2014, respectively.

Maximum exposure under guarantee contracts

The table below summarizes the remaining term and maximum potential amount of future payments by type of guarantee at March 31, 2013 and 2014. The maximum potential amount of future payments disclosed below represents the contractual amounts that could be repaid in the event of the guarantees being executed, without consideration of possible recoveries under recourse provisions or from collateral held. With respect to written options included in derivative financial instruments in the table below, in theory, the MHFG Group is exposed to unlimited losses; therefore, the table shows the notional amounts of the contracts as a substitute for the maximum exposure.

The MHFG Group, when necessary, requires collateral such as cash, investment securities and real estate or third-party guarantees depending on the amount of credit risk involved, and employs means such as sub-participation to reduce the credit risk associated with guarantees. The maximum exposure or notional amount below does not represent the expected losses from the execution of the guarantees.

2013	Maximum potential/Contractual or Notional amount		Amount by expiration period
			One year or less		After one year through five years		After five years
	(in billions of yen)
Performance guarantees		1,750		935		619		196
Guarantees on loans		452		159		51		242
Guarantees on securities		146		19		127		—
Other guarantees		1,068		826		217		25
Guarantees for the repayment of trust principal		171		—		133		38
Liabilities of trust accounts		8,606		8,428		72		106
Derivative financial instruments		23,582		10,185		11,837		1,560

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2014	Maximum potential/Contractual or Notional amount		Amount by expiration period
			One year or less		After one year through five years		After five years
	(in billions of yen)
Performance guarantees		1,985		1,125		708		152
Guarantees on loans		399		173		21		205
Guarantees on securities		170		42		128		—
Other guarantees		1,249		991		220		38
Guarantees for the repayment of trust principal		158		—		125		33
Liabilities of trust accounts		11,158		10,962		78		118
Derivative financial instruments		21,422		8,643		11,391		1,388

The table below presents the maximum potential amount of future payments of performance guarantees, guarantees on loans, guarantees on securities and other guarantees classified based on internal ratings at March 31, 2013 and 2014:

	2013		2014
	(in billions of yen)
Investment grade		2,387		2,673
Non-investment grade		1,029		1,130
Total		3,416		3,803

Note: Investment grade in the internal rating scale generally corresponds to BBB- or above in external rating scale.

Other off-balance-sheet instruments

In addition to guarantees, the MHFG Group issues other off-balance-sheet instruments to its customers, such as lending-related commitments and commercial letters of credit. Under the terms of these arrangements, the MHFG Group is required to extend credit or make certain payments upon the customers’ request.

Commitments to extend credit

Commitments to extend credit are legally binding agreements to lend to customers on demand. They usually have set maturity dates. These agreements differ from guarantees in that they are generally revocable or contain provisions that enable the MHFG Group to avoid payment or reduce the amount of credit extended under certain conditions, such as the deterioration of the borrower’s financial condition or other reasonable conditions. The MHFG Group monitors the financial condition of the potential borrowers throughout the commitment period to determine whether additional collateral or changes in the terms of the commitment are necessary. Since many of these commitments to extend credit expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements.

Commitments to invest in securities

Commitments to invest in securities include legally binding contracts to make additional contributions to investment funds, such as venture capital funds or corporate recovery funds in accordance with the terms of investment agreements.

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Commercial letters of credit

Commercial letters of credit are issued in connection with customers’ trade transactions. Normally, the customers cannot receive the goods until they make payment to a bank, and therefore these commercial letters of credit are collateralized by the underlying goods. Upon issuance of commercial letters of credit, the MHFG Group monitors the credit risk associated with these transactions to determine if additional collateral is required.

The table below summarizes the contractual amounts with regard to these undrawn commitments at March 31, 2013 and 2014:

	2013		2014
	(in billions of yen)
Commitments to extend credit (Note)		59,101		59,402
Commercial letters of credit		608		611
Total		59,709		60,013

Note: Commitments to extend credit include commitments to invest in securities.

Allowance for losses on off-balance-sheet instruments

The amounts of an allowance for losses on off-balance-sheet instruments at March 31, 2013 and 2014 were ¥102 billion and ¥121 billion, respectively.

Leases

The MHFG Group leases certain office space and equipment under noncancelable agreements. The lease periods for these leases range from less than 1 year to around 30 years. These leases include cancellation clauses with penalties of a maximum of approximately 5 years-worth of rentals and/or periodic adjustment clauses of rentals. Future minimum lease payments for capitalized leases and future minimum rental payments for operating leases at March 31, 2014 were as follows:

	Capitalized leases		Operating leases
	(in millions of yen)
Fiscal year ending March 31:
2015		6,479		48,233
2016		5,929		40,195
2017		5,186		35,584
2018		4,547		31,556
2019		3,820		29,237
2020 and thereafter		2,068		74,596
Total minimum lease/rental payments		28,029		259,401
Amount representing interest		1,349
Present value of minimum lease payments		26,680

Total rental expense for the fiscal years ended March 31, 2012, 2013 and 2014 was ¥101,003 million, ¥98,459 million and ¥95,941 million, respectively.

During prior years, the MHFG Group’s major banking subsidiaries sold their head offices (including land, buildings, facilities and equipment) to third parties. Concurrent with the sales, these subsidiaries leased the properties back for periods of 5 and 10 years for total rental payments for these periods of ¥214,690 million. The terms of certain lease agreements were changed during the fiscal years ended March 31, 2009, 2011, 2012

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and 2014, and the total rental payments for these periods increased to ¥282,832 million, consequently. The MHFG Group accounted for the transactions as operating leases. The future minimum rental payments under the terms of the related lease agreements were ¥29,879 million, ¥15,907 million and ¥69,556 million at March 31, 2012, 2013 and 2014, respectively.

During the fiscal year ended March 31, 2014, MHFG began to lease its head office from a third party and accounted for the lease arrangement as operating lease.

Legal proceedings

The MHFG Group is involved in normal collection proceedings initiated by the Group and other legal proceedings in the ordinary course of business.

The Group’s Indonesian subsidiary acts as collateral agent for the trustee of bond issuances made by subsidiaries of Asia Pulp & Paper Company Ltd. (“APP”). In that role, the subsidiary is involved in a dispute between the bondholders and such APP subsidiaries in their capacities as the issuers, guarantors and/or pledgors of security for the bonds relating to foreclosure proceedings on the collateral and has been named as a defendant in a lawsuit brought by the obligors under the bonds in Indonesia. The Group’s consolidated financial statements do not include a reserve in relation to this dispute because the Group does not believe that the resolution of this matter will have a significant impact on the consolidated financial condition or results of operations of the Group, although there can be no assurance as to the foregoing.

24. Noncontrolling interests in consolidated subsidiaries

Noncontrolling interests represent the equity of the remaining outstanding voting stock of subsidiaries not owned by the MHFG Group. The changes in the noncontrolling interests in fiscal years ended March 31, 2012, 2013 and 2014 consisted of noncontrolling interests in the net income or loss of subsidiaries, noncontrolling interests in changes in other comprehensive income of subsidiaries and changes in the ownership percentage of the Group in respect of certain subsidiaries.

During the fiscal year ended March 31, 2012, the MHFG Group exchanged certain MHFG’s common stock for 30.15, 40.80 and 46.02 percent of the voting equity interests in MHTB, the former MHSC and the former MHIS, respectively, in order for those subsidiaries to become MHFG’s wholly-owned subsidiaries. See Note 14 “Common stock” for further details of these transactions. Subsequently, the Group transferred 5.34 percent of the voting equity interests in the former MHSC to The Norinchukin Bank.

25. Variable interest entities and securitizations

Variable interest entities

In the normal course of business, the MHFG Group is involved with VIEs primarily through the following types of transactions: asset-backed commercial paper/loan programs, asset-backed securitizations, investments in securitization products, investment funds, trust arrangements, and structured finance. The Group consolidates certain of these VIEs, where the Group is deemed to be the primary beneficiary because it has both (1) the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance and (2) the obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE. The MHFG Group reassesses whether it is primary beneficiary on an ongoing basis as long as the Group has any continuing involvement with the VIE. There are also other VIEs, where the Group determines that it is not the primary beneficiary but has significant variable interests. In evaluating the significance of the variable interests,

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the Group comprehensively takes into consideration the extent of its involvement with each VIE, such as the seniority of its investments, the share of its holding in each tranche and the variability it expects to absorb, as well as other relevant facts and circumstances. The likelihood of loss is not necessarily relevant to the determination of significance, and therefore, “significant” does not imply that there is high likelihood of loss. The maximum exposure to loss that is discussed in this section refers to the maximum loss that the Group could be required to record in its consolidated statements of income as a result of its involvement with the VIE. This represents exposures associated with both on-balance-sheet assets and off-balance-sheet liabilities related to the VIE. Further, this maximum potential loss is disclosed regardless of the probability of such losses and, therefore, it is not indicative of the ongoing exposure which is managed within the Group’s risk management framework.

The tables below show consolidated assets of the Group’s consolidated VIEs as well as total assets and maximum exposure to loss for its significant unconsolidated VIEs, as of March 31, 2013 and 2014:

	Consolidated VIEs		Significant unconsolidated VIEs
2013	Consolidated assets		Total assets		Maximum exposure to loss
	(in billions of yen)
Asset-backed commercial paper/loan programs		2,212		—		—
Asset-backed securitizations		385		463		37
Investments in securitization products		—		530		206
Investment funds		1,175		2,770		302
Trust arrangements and other		39		—		—
Total		3,811		3,763		545

	Consolidated VIEs		Significant unconsolidated VIEs
2014	Consolidated assets		Total assets		Maximum exposure to loss
	(in billions of yen)
Asset-backed commercial paper/loan programs		2,403		—		—
Asset-backed securitizations		423		385		39
Investments in securitization products		181		531		200
Investment funds		1,508		2,935		387
Trust arrangements and other		38		—		—
Total		4,553		3,851		626

The Group has not provided financial or other support to consolidated or unconsolidated VIEs that the Group was not previously contractually required to provide.

The tables below present the carrying amounts and classification of assets and liabilities on the MHFG Group’s balance sheets that relate to its variable interests in the significant unconsolidated VIEs, as of March 31, 2013 and 2014:

Assets on balance sheets related to unconsolidated VIEs:	2013		2014
	(in billions of yen)
Trading account assets		46		29
Investments		206		222
Loans		308		316
Total		560		567

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Liabilities on balance sheets and maximum exposure to loss related to unconsolidated VIEs:	2013		2014
	(in billions of yen)
Payables under securities lending transactions		14		4
Total		14		4
Maximum exposure to loss		545		626

Asset-backed commercial paper/loan programs

The MHFG Group manages several asset-backed commercial paper/loan programs that provide its clients’ off-balance-sheet and/or cost-effective financing. The VIEs used in the programs purchase financial assets, primarily receivables, from clients participating in the programs and provide liquidity through the issuance of commercial paper or borrowings from the MHFG Group backed by the financial assets. While customers normally continue to service the transferred receivables, the MHFG Group underwrites, distributes, and makes a market in commercial paper issued by the conduits. The MHFG Group typically provides program-wide liquidity and credit support facilities and, in some instances, financing to the VIEs. The MHFG Group has the power to determine which assets will be held in the VIEs and has an obligation to monitor these assets. The Group is also responsible for liability management. In addition, through the liquidity and credit support facilities with the VIEs, the Group has the obligation to absorb losses that could potentially be significant to the VIEs. Therefore, the Group consolidates this type of VIEs.

Asset-backed securitizations

The MHFG Group acts as an arranger of various types of structured finance to meet clients’ off-balance-sheet financing needs. In substantially all of these structured financing transactions, the transfer of the financial asset by the client is structured to be bankruptcy remote by use of a bankruptcy remote entity, which is deemed to be a VIE because its equity holder does not have decision making rights. The MHFG Group receives fees for structuring and/or distributing the securities sold to investors. In some cases, the MHFG Group itself purchases the securities issued by the entities and/or provides loans to the VIEs.

In addition, the MHFG Group establishes several single-issue and multi-issue special purpose entities that issue collateralized debt obligations (“CDO”) or CLO, synthetic CDO/CLO or other repackaged instruments to meet clients’ and investors’ financial needs. The MHFG Group also arranges securitization transactions including CMBS, RMBS and others. In these transactions, the MHFG Group acts as an underwriter, placement agent, asset manager, derivatives counterparty, and/or investor to debt and equity instruments.

In certain VIEs, where the MHFG Group provides liquidity and credit support facilities, writes credit protection or invests in debt or equity instruments in its role as an arranger, servicer, administrator or asset manager, etc., the Group has the power to determine which assets will be held in the VIEs or to manage and monitor these assets. In addition, through the variable interests above, the Group has the obligation to absorb losses and the right to receive benefits that could potentially be significant to the VIEs. Therefore, the Group consolidates such VIEs.

The MHFG Group established certain VIEs to securitize its own mortgage loans. The Group provides servicing for, holds retained subordinated beneficial interests in, and retains credit exposure in the form of guarantees in the mortgage loans. In its role as a servicer, the Group has the power to direct the entity’s activities that most significantly impact the entity’s economic performance by managing defaulted mortgage loans. In addition, through the retained interests and the involvement as a guarantor above, the Group has the obligation to absorb losses and the right to receive benefits that could potentially be significant to the entity. Therefore, the Group consolidates such VIEs.

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Investments in securitization products

The MHFG Group invests in, among other things, various types of CDO/CLO, synthetic CDO/CLO and repackaged instruments, CMBS and RMBS arranged by third parties for the purpose of generating current income or capital appreciation, which all utilize entities that are deemed to be VIEs. By design, such investments were investment grade at issuance and held by a diverse group of investors. The potential loss amount of securities and loans is generally limited to the amount invested because the Group has no contractual involvement in such VIEs beyond its investments. Since the Group is involved in those VIEs only as an investor, the Group does not ordinarily have the power to direct the VIEs’ activities that most significantly impact the VIEs’ economic performance. However, the Group consolidates VIEs, where the transactions are tailored by the third party arrangers to meet the Group’s needs as a main investor, who is ultimately deemed to have the power to determine which assets to be held in the VIEs. The Group also invests in certain beneficial interests issued by VIEs which hold real estate that the Group utilizes. In addition to these variable interests, when the Group has the power including the sole unilateral ability to liquidate VIEs, the Group consolidates such VIEs.

Investment funds

The MHFG Group invests in various investment funds including securities investment trusts, which collectively invest in equity and debt securities that include listed Japanese securities and investment grade bonds. Investment advisory companies or fund management companies, including the Group’s subsidiaries and affiliates, administer and make investment decisions over such investment funds. The Group consolidates certain investment funds where it is deemed to be the primary beneficiary. The Group has determined that certain investment vehicles managed by the Group that have all the attributes of an investment company (or similar entity) qualify for the deferral from certain requirements of ASC 810 that originated from SFAS No.167 “Amendments to FASB Interpretation No. 46(R)” (“SFAS No. 167”). Therefore, for these vehicles, the Group determines whether it is the primary beneficiary by evaluating whether it absorbs a majority of expected losses, receives a majority of expected residual returns, or both.

Trust arrangements

The MHFG Group offers a variety of asset management and administration services under trust arrangements including security investment trusts, pension trusts and trusts used in the securitization of assets originated by and transferred to third parties. The Group receives trust fees for providing services as an agent or fiduciary on behalf of beneficiaries.

With respect to guaranteed principal money trust products, the MHFG Group assumes certain risks by providing guarantees for the repayment of principal as required by the trust agreements or relevant Japanese legislation. The MHFG Group manages entrusted funds primarily through the origination of high quality loans and other credit-related products, investing in investment grade marketable securities such as Japanese government bonds and placing cash with the MHFG Group’s subsidiary trust banks. The Group has the power to determine which assets will be held in the VIEs or to manage these assets. In addition, through the principal guarantee agreement, the Group has the obligation to absorb losses that could potentially be significant to the VIEs. Therefore, the Group consolidates this type of VIEs. However, the MHFG Group does not consolidate certain guaranteed principal money trusts, which invest all the entrusted funds in the MHFG Group itself, as the Group has determined that it has no variable interests (Refer to Note 10 “Due to trust accounts”). See Note 23 “Commitments and contingencies” for the balances of guaranteed trust principal unconsolidated at March 31, 2013 and 2014.

With respect to non-guaranteed trust arrangements, the MHFG Group manages and administers assets on behalf of its customers (trust beneficiaries) in the capacity of a trustee and fiduciary. For substantially all non-guaranteed trust arrangements, the Group generally does not have the power to direct the activities of the VIEs that most significantly impact the VIEs’ economic performance or has neither the obligation to absorb losses nor the right to receive benefits that could potentially be significant to the VIEs. Therefore, such trust accounts are not included in the consolidated financial statements of the MHFG Group.

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The Group has determined that, in certain trust arrangements that have all the attributes of an investment company (or similar entity), certain requirements of ASC 810 that originated from SFAS No.167 are deferred. Therefore, for these trust arrangements, the Group determines whether it is the primary beneficiary by evaluating whether it absorbs a majority of expected losses, receives a majority of expected residual returns, or both.

Special purpose entities created for structured finance

The MHFG Group is involved in real estate, commercial aircraft and other vessel and machinery and equipment financing to VIEs. As the Group typically only provides senior financing with credit enhanced by subordinated interests and sometimes may act as an interest rate swap counterparty, the Group determines that, in this type of VIEs, it does not have the power to direct the activities of the VIEs that most significantly impact the VIEs’ economic performance, or even the significant variable interests.

Securitization

The MHFG Group has had no significant transfers of financial assets, recognized no significant gains or losses and retained no significant interests in securitization transactions accounted for as sales.

There are certain transactions where transfers of financial assets do not qualify for sale treatment but are accounted for as secured borrowings. These transferred assets continue to be carried on the consolidated balance sheets of the MHFG Group. Such assets are associated with securitization transactions and loan participation transactions, which amounted to ¥174 billion and ¥62 billion as of March 31, 2013, and ¥181 billion and ¥79 billion as of March 31, 2014, respectively. Liabilities associated with securitization and loan participation transactions are presented as Payables under securities lending transactions and Other short-term borrowings or Long-term debt, respectively, on the consolidated balance sheets.

26. Fees and commissions income

Details of Fees and commissions income for the fiscal years ended March 31, 2012, 2013 and 2014 are as follows:

	2012		2013		2014
	(in millions of yen)
Securities-related business		116,567		132,787		170,311
Deposits, debentures and lending business		97,509		113,989		114,073
Remittance business		105,015		104,574		108,534
Trust fees		45,990		45,621		48,914
Fees for other customer services		210,332		215,837		233,931
Total		575,413		612,808		675,763

Securities-related business fees consist of broker’s fees and markups on securities underwriting and other securities related activities. Remittance business fees consist of service charges for funds transfer and collections. Trust fees are earned primarily by fiduciary asset management and administration service for corporate pension plans, investment funds, and other. Fees for other customer services include fees related to the MHFG Group’s agency business, guarantee related business, and other.

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27. Trading account gains and losses

The MHFG Group performs trading activities through market making, sales, and arbitrage. Accordingly, Trading account gains (losses)—net include gains and losses from transactions undertaken for trading purposes, including both market making for customers and proprietary trading, or transactions through which the Group seeks to capture gains arising from short-term changes in market value. Trading account gains (losses)—net also include gains and losses related to changes in the fair value of derivatives and other financial instruments not eligible for hedge accounting under U.S. GAAP that are utilized to offset mainly interest rate risk related to the Group’s various assets and liabilities, as well as gains and losses related to changes in the fair value of foreign currency-denominated available-for-sale securities for which the fair value option is elected in accordance with ASC 825, “Financial Instruments” (“ASC 825”). Net trading gains (losses) for the fiscal years ended March 31, 2012, 2013 and 2014 are comprised of the following:

	2012			2013			2014
	(in millions of yen)
Trading account gains (losses)—net:
Trading securities		227,056			468,029			80,606
Derivative contracts:
Interest rate contracts (1)		261,568			219,385			(79,562	)
Foreign exchange contracts		(146,258	)		(91,300	)		(13,167	)
Equity-related contracts (1)		(7,150	)		(59,462	)		(41,607	)
Credit-related contracts (2)		(2,184	)		(174	)		899
Other contracts		283			(2,378	)		(6,856	)
Total		333,315			534,100			(59,687	)
Foreign exchange gains (losses)—net (3)		98,054			20,514			25,631
Net trading gains (losses)		431,369			554,614			(34,056	)

Notes:

(1) The net gain (loss) excluded from the assessment of the effectiveness of fair value hedges is included in the above table.

(2) Amounts do not include the net loss of ¥3,391 million, ¥6,703 million and ¥8,660 million on the credit derivatives hedging the credit risk of loans during the fiscal years ended March 31, 2012, 2013 and 2014, respectively. The net loss is recorded in Other noninterest expenses.

(3) Amounts include realized and unrealized gains and losses on both derivative instruments and nonderivative instruments, such as translation gains and losses related to foreign currency-denominated available-for-sale securities for which the fair value option is elected in accordance with ASC 825.

28. Fair value

Fair value measurements

ASC 820 defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. ASC 820 also establishes a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. In addition, ASC 820 precludes (1) the deferral of gains and losses at inception of certain derivative contracts whose fair value was not evidenced by market-observable data, and (2) the use of block discounts when measuring the fair value of instruments traded in an active market, which were previously applied to large holdings of publicly traded financial instruments.

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Fair value hierarchy

ASC 820 specifies a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. The standard describes three levels of inputs that may be used to measure fair value:

Level 1	Quoted prices in active markets for identical assets or liabilities. Level 1 assets and liabilities include debt and equity securities and derivative contracts that are traded in an active exchange market.
Level 2	Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 2 assets and liabilities include debt securities with quoted prices that are traded less frequently than exchange-traded instruments. If no quoted market prices are available, the fair values of debt securities and over-the-counter derivative contracts in this category are determined using a pricing model with inputs that are observable in the market or can be derived principally from or corroborated by observable market data.
Level 3	Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Level 3 assets and liabilities include financial instruments whose values are determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation.

Valuation process

The MHFG Group has established clear valuation policies which govern the principles of fair value measurements and the authority and duty of each department. The Group has also established well-documented procedure manuals which describe valuation techniques and related inputs for determining the fair values of various financial instruments. The policies require that the measurement of fair values be carried out in accordance with the procedures by the risk management departments or the back offices which are independent from the front offices. The policies also require the risk management departments to check and verify whether the valuation methodologies defined in the procedure manuals are fair and proper and the internal audit departments to periodically review the compliance with the procedures throughout the Group. Although the valuation methodologies and related inputs are consistently used from period to period, a change in the market environment sometimes leads to a change in the valuation methodologies and the inputs. For instance, a change in market liquidity due to a delisting or a new listing is one of the key drivers of revisions to the valuation methodologies and the inputs. The key drivers also include the availability or the lack of market observable inputs and the development of new valuation methodologies. The price verification through the Group’s internal valuation process has an important role in identifying whether the valuation methodologies and the inputs need to be changed. The internal valuation process over the prices broker-dealers provide, primarily for Japanese securitization products, is described in more detail below in “Investments”. A change in the valuation methodologies and/or the inputs requires the revision of the valuation policies and procedure manuals, which is required to be approved by the appropriate authority, either the CEO, the head of risk management, and/or accounting, depending on the nature and characteristics of the change.

The following is a description of valuation methodologies and inputs used for assets and liabilities measured at fair value on a recurring basis, including the general classification of such instruments pursuant to the fair value hierarchy and the MHFG Group’s valuation techniques used to measure fair values. During the fiscal year ended March 31, 2014, there were no significant changes made to the Group’s valuation techniques and related inputs.

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Trading securities and trading securities sold, not yet purchased

When quoted prices for identical securities are available in an active market, the Group uses the quoted prices to measure the fair values of securities and such securities are classified in Level 1 of the fair value hierarchy. Level 1 securities include highly liquid government bonds and Ginnie Mae securities. When quoted prices for identical securities are available, but not actively traded, such securities are classified in Level 2 of the fair value hierarchy. When no quoted market prices are available, the Group estimates fair values by using a pricing model with inputs that are observable in the market and such securities are classified in Level 2 of the fair value hierarchy. Level 2 securities include Japanese local government bonds, corporate bonds, and commercial paper. When less liquid market conditions exist for securities, the quoted prices are stale or the prices from independent sources vary significantly, such securities are generally classified in Level 3 of the fair value hierarchy. The fair values of foreign currency denominated securitization products such as RMBS, CMBS, and ABS are determined primarily by using a discounted cash flow model. The key inputs used for the model include default rates, recovery rates, prepayment rates, and discount rates. In the event that certain key inputs are unobservable or cannot be corroborated by observable market data, these financial instruments are classified in Level 3.

The investment funds are classified in either Level 1, Level 2, or Level 3 of the fair value hierarchy. Exchange-Traded Funds (“ETF”) are generally classified in Level 1, while the others are classified in Level 2 or Level 3. Investment trusts and hedge funds are generally classified in Level 2, since those funds are measured at the net asset value (“NAV”) per share and the Group has the ability to redeem its investment with the investees at the NAV per share at the measurement date or within the near term. In contrast, private equity funds and real estate funds measured at the NAV per share are generally classified in Level 3, since the Group does not have the ability to redeem its investment with the investees at the NAV per share, and it cannot redeem its investment with the investees at the NAV per share at the measurement date or within the near term.

Derivative financial instruments

Exchange-traded derivatives are valued using quoted market prices and consequently are classified in Level 1 of the fair value hierarchy. However, the majority of derivatives entered into by the Group are executed over-the-counter and are valued using internal valuation techniques as no quoted market prices are available for such instruments. The valuation techniques depend on the type of derivatives. The principal techniques used to value these instruments are discounted cash flow models and the Black-Scholes option pricing model, which are widely accepted in the financial services industry. The key inputs vary with the type of derivatives and the nature of the underlying instruments and include interest rate yield curves, foreign exchange rates, the spot price of the underlying, volatility and correlation. Each item is classified in either Level 2 or Level 3 depending on the observability of the significant inputs to the model. Level 2 derivatives include plain vanilla interest rate and currency swaps and option contracts. Derivative contracts valued using significant unobservable correlation or volatility are classified in Level 3 of the fair value hierarchy.

Investments

The fair values of available-for-sale securities are determined primarily using the same procedures described for trading securities above. Since private placement bonds have no quoted market prices, the fair values of such bonds are estimated based on a discounted cash flow model using interest rates approximating the current rates for instruments with similar maturities and credit risk. Private placement bonds are classified in either Level 2 or Level 3 depending on the observability of the significant inputs to the model, such as credit risk. The fair values of Japanese securitization products such as RMBS, CMBS, CDO, ABS, and CLO are generally based upon single non-binding quoted prices from broker-dealers. Such quotes are validated through the Group’s internal processes

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and controls. In the rare case where the Group finds the quoted prices to be invalid through its internal valuation process, it adjusts those prices or alternatively estimates their fair values by using a discounted cash flow model to incorporate the Group’s estimates of key inputs such as the most recent value of each underlying asset, cash flows of the underlying assets, and discount margin. The validation of such prices varies depending on the nature and type of the products. For the majority of RMBS, CDO, ABS and CLO products, broker quotes are validated by investigating significant unusual monthly valuation fluctuations and comparing to prices internally computed through discounted cash flow models using assumptions and parameters provided by brokers such as the cash flows of underlying assets, yield curve, prepayment speed and credit spread. For the majority of CMBS, the Group validates broker quotes through a review process that includes the investigation of significant unusual monthly valuation fluctuations and/or a review of underlying assets with significant differences between the valuations of the Group and the broker-dealers being identified. Though most Japanese securitization products are classified in Level 3, certain securitization products such as Japanese RMBS are classified in Level 2, if the quoted prices are verified through either recent market transactions or a pricing model that can be corroborated by observable market data.

Other investments, except investments held by consolidated investment companies, have not been measured at fair value on a recurring basis. Investments held by consolidated investment companies mainly consist of marketable and non-marketable equity securities and debt securities. The fair value of the marketable equity securities is based upon quoted market prices. The fair value of the non-marketable equity securities is based upon significant management judgment, as very limited quoted prices exist. When evaluating such securities, the Group firstly considers recent market transactions of identical securities, if applicable. Subsequently, the Group uses commonly accepted valuation techniques such as earnings multiples based on comparable public securities. Non-marketable equity securities are generally classified in Level 3 of the fair value hierarchy. The fair value of the debt securities is estimated using a discounted cash flow model, since they have no quoted market prices. Those debt securities are classified in Level 3, because the credit risk is unobservable.

Long-term debt

Where fair value accounting has been elected for structured notes, the fair values are determined by incorporating the fair values of embedded derivatives that are primarily derived by using the same procedures described for derivative financial instruments above. Such instruments are classified in Level 2 or Level 3 depending on the observability of significant inputs to the model of the embedded derivatives.

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Items measured at fair value on a recurring basis

Assets and liabilities measured at fair value on a recurring basis at March 31, 2013 and 2014, including those for which the MHFG Group has elected the fair value option, are summarized below:

2013	Level 1		Level 2		Level 3		Assets/ Liabilities measured at fair value
	(in billions of yen)
Assets:
Trading securities (1):
Japanese government bonds		4,651		49		—		4,700
Japanese local government bonds		—		125		—		125
U.S. Treasury bonds and federal agency securities		5,777		306		—		6,083
Other foreign government bonds		2,235		194		—		2,429
Agency mortgage-backed securities		2,055		596		—		2,651
Residential mortgage-backed securities		—		—		100		100
Commercial mortgage-backed securities		—		3		91		94
Certificates of deposit and commercial paper		—		1,318		—		1,318
Corporate bonds and other		50		1,176		417		1,643
Equity securities		622		503		71		1,196
Derivatives:
Interest rate contracts		7		10,319		24		10,350
Foreign exchange contracts		5		3,066		28		3,099
Equity-related contracts		45		114		23		182
Credit-related contracts		—		30		29		59
Other contracts		—		18		20		38
Available-for-sale securities:
Japanese government bonds		29,198		1,585		—		30,783
Japanese local government bonds		—		244		—		244
U.S. Treasury bonds and federal agency securities		178		—		—		178
Other foreign government bonds		334		264		—		598
Agency mortgage-backed securities		144		862		—		1,006
Residential mortgage-backed securities		—		150		292		442
Commercial mortgage-backed securities		—		—		250		250
Japanese corporate bonds and other debt securities		—		2,000		215		2,215
Foreign corporate bonds and other debt securities		12		345		202		559
Equity securities (marketable)		2,975		164		—		3,139
Other investments		1		—		75		76
Total assets measured at fair value on a recurring basis (2)		48,289		23,431		1,837		73,557
Liabilities:
Trading securities sold, not yet purchased		3,338		182		—		3,520
Derivatives:
Interest rate contracts		8		9,997		13		10,018
Foreign exchange contracts		4		2,968		11		2,983
Equity-related contracts		51		110		16		177
Credit-related contracts		—		35		9		44
Other contracts		—		8		19		27
Long-term debt (3)		—		171		381		552
Total liabilities measured at fair value on a recurring basis		3,401		13,471		449		17,321

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2014	Level 1		Level 2		Level 3		Assets/ Liabilities measured at fair value
	(in billions of yen)
Assets:
Trading securities (1):
Japanese government bonds		3,360		50		—		3,410
Japanese local government bonds		—		74		—		74
U.S. Treasury bonds and federal agency securities		3,541		486		—		4,027
Other foreign government bonds		2,567		274		—		2,841
Agency mortgage-backed securities		1,390		364		—		1,754
Residential mortgage-backed securities		—		—		78		78
Commercial mortgage-backed securities		—		2		91		93
Certificates of deposit and commercial paper		—		969		—		969
Corporate bonds and other		38		1,671		413		2,122
Equity securities		714		579		60		1,353
Derivatives:
Interest rate contracts		43		7,997		24		8,064
Foreign exchange contracts		6		2,331		17		2,354
Equity-related contracts		60		124		13		197
Credit-related contracts		—		28		21		49
Other contracts		1		18		4		23
Available-for-sale securities:
Japanese government bonds		20,912		1,144		—		22,056
Japanese local government bonds		—		245		—		245
U.S. Treasury bonds and federal agency securities		154		—		—		154
Other foreign government bonds		280		441		—		721
Agency mortgage-backed securities		105		856		—		961
Residential mortgage-backed securities		—		112		220		332
Commercial mortgage-backed securities		—		—		161		161
Japanese corporate bonds and other debt securities		—		1,858		170		2,028
Foreign corporate bonds and other debt securities		1		427		141		569
Equity securities (marketable)		3,348		74		—		3,422
Other investments		2		—		69		71
Total assets measured at fair value on a recurring basis (2)		36,522		20,124		1,482		58,128
Liabilities:
Trading securities sold, not yet purchased		3,862		488		—		4,350
Derivatives:
Interest rate contracts		42		7,846		7		7,895
Foreign exchange contracts		5		2,340		6		2,351
Equity-related contracts		58		108		12		178
Credit-related contracts		—		30		4		34
Other contracts		1		12		4		17
Long-term debt (3)		—		157		501		658
Total liabilities measured at fair value on a recurring basis		3,968		10,981		534		15,483

Notes:

(1) Trading securities include foreign currency denominated securities for which the MHFG Group elected the fair value option.

(2) Amounts include the investments measured at the NAV per share at March 31, 2013 and 2014, of ¥715 billion and ¥649 billion, respectively, of which ¥667 billion and ¥612 billion, respectively, are classified in Level 2, and ¥48 billion and ¥37 billion, respectively, are classified in Level 3. The amounts of unfunded commitments related to these investments at March 31, 2013 and 2014 were ¥24 billion and ¥23 billion, respectively.

(3) Amounts represent items for which the Group elected the fair value option.

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Items measured at fair value on a recurring basis using significant unobservable inputs (Level 3)

The following table presents a reconciliation for all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the fiscal years ended March 31, 2013 and 2014:

2013	April 1, 2012			Gains (losses) in Earnings			Gains (losses) in OCI			Transfers into Level 3			Transfers out of Level 3			Purchases			Sales			Issuances		Settlements			March 31, 2013		Change in unrealized gains (losses) still held (6)
	(in billions of yen)
Assets:
Trading securities:
Residential mortgage- backed securities		159			17	(2)		—			—			—			2			(7	)		—		(71	)		100		6
Commercial mortgage- backed securities		26			1	(2)		—			—			—			72			(1	)		—		(7	)		91		—
Corporate bonds and other		355			72	(2)		—			14			(8	)		609			(544	)		—		(81	)		417		42
Equity securities		82			4	(2)		—			3			(3	)		10			(25	)		—		—			71		(1	)
Derivatives, net (1):
Interest rate contracts		(10	)		16	(2)		—			—			—			—			—			—		5			11		16
Foreign exchange contracts		37			(18	)(2)		—			—			(8	)		—			—			—		6			17		(21	)
Equity-related contracts		22			(10	)(2)		—			—			—			—			—			—		(5	)		7		(10	)
Credit-related contracts		23			(6	)(2)		—			(1	)		1			—			—			—		3			20		(5	)
Other contracts		15			—	(2)		—			—			(14	)		—			—			—		—			1		—
Available-for-sale securities:
Residential mortgage- backed securities		348			—	(3)		6	(4)		—			—			29			(1	)		—		(90	)		292		—
Commercial mortgage- backed securities		330			2	(3)		12	(4)		—			—			31			(16	)		—		(109	)		250		(5	)
Japanese corporate bonds and other debt securities		226			—	(3)		1	(4)		—			—			95			—			—		(107	)		215		—
Foreign corporate bonds and other debt securities		236			4	(3)		6	(4)		—			—			28			(4	)		—		(68	)		202		—
Other investments		189			12	(3)		—			—			—			6			(49	)		—		(83	)		75		—
Liabilities:
Trading securities sold, not yet purchased		—			—	(2)		—			—			(1	)		(41	)		42			—		—			—		—
Long-term debt		460			(26	)(5)		—			4			(175	)		—			—			142		(76	)		381		(24	)

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2014	April 1, 2013		Gains (losses) in Earnings			Gains (losses) in OCI			Transfers into Level 3			Transfers out of Level 3			Purchases		Sales			Issuances		Settlements			March 31, 2014		Change in unrealized gains (losses) still held (6)
	(in billions of yen)
Assets:
Trading securities:
Residential mortgage-backed securities		100		10	(2)		—			—			—			—		(4	)		—		(28	)		78		7
Commercial mortgage-backed securities		91		5	(2)		—			—			—			—		—			—		(5	)		91		4
Corporate bonds and other		417		55	(2)		—			4			(12	)		503		(442	)		—		(112	)		413		35
Equity securities		71		6	(2)		—			—			—			8		(24	)		—		(1	)		60		—
Derivatives, net (1):
Interest rate contracts		11		6	(2)		—			(1	)		—			—		—			—		1			17		11
Foreign exchange contracts		17		(3	)(2)		—			—			—			—		—			—		(3	)		11		5
Equity-related contracts		7		(6	)(2)		—			—			—			—		—			—		—			1		(7	)
Credit-related contracts		20		(6	)(2)		—			—			1			—		—			—		2			17		(6	)
Other contracts		1		—	(2)		—			—			—			—		—			—		(1	)		—		—
Available-for-sale securities:
Residential mortgage-backed securities		292		(1	)(3)		5	(4)		—			—			5		(9	)		—		(72	)		220		—
Commercial mortgage-backed securities		250		5	(3)		(2	)(4)		—			—			36		(18	)		—		(110	)		161		(1	)
Japanese corporate bonds and other debt securities		215		—	(3)		—	(4)		—			(30	)		60		(1	)		—		(74	)		170		—
Foreign corporate bonds and other debt securities		202		8	(3)		(1	)(4)		7			—			—		—			—		(75	)		141		—
Other investments		75		(2	)(3)		—			—			(2	)		7		(2	)		—		(7	)		69		(2	)
Liabilities:
Long-term debt		381		4	(5)		—			1			(1	)		—		—			197		(73	)		501		5

Notes:

(1) Total Level 3 derivative exposures have been netted on the table for presentation purposes only.

(2) Gains (losses) in Earnings are reported in Trading account gains (losses)—net, Foreign exchange gains (losses)—net or Other noninterest income (expenses).

(3) Gains (losses) in Earnings are reported in Investment gains (losses)—net.

(4) Gains (losses) in OCI are reported in Accumulated other comprehensive income (loss).

(5) Gains (losses) in Earnings are reported in Other noninterest income (expenses).

(6) Amounts represent total gains or losses recognized in earnings during the period. These gains or losses are attributable to the change in fair value relating to assets and liabilities classified as Level 3 that are still held at March 31, 2013 and 2014.

Transfers between levels

Transfers of assets or liabilities between levels of the fair value hierarchy are assumed to occur at the beginning of the period.

During the fiscal year ended March 31, 2013, ¥37 billion of Trading securities were transferred from Level 1 to Level 2. Transfers of Trading securities were primarily due to certain Japanese government bonds and foreign corporate bonds which were traded with less frequency.

During the fiscal year ended March 31, 2013, ¥17 billion of Trading securities and ¥1 billion of net Derivative liabilities were transferred into Level 3. Transfers of Trading securities were primarily due to decreased liquidity for certain foreign corporate bonds and equity securities. Transfers of net Derivative liabilities were primarily

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due to decreased price observability for certain credit derivatives. During the fiscal year ended March 31, 2013, ¥11 billion of Trading securities, ¥1 billion of Trading securities sold, not yet purchased and ¥21 billion of net Derivative assets were transferred out of Level 3. Transfers of Trading securities and Trading securities sold, not yet purchased were primarily due to increased liquidity for certain Japanese and foreign corporate bonds and equity securities. Transfers of net Derivative assets were primarily due to increased price observability for certain commodity derivatives and foreign exchange derivatives. During the fiscal year ended March 31, 2013, ¥4 billion of transfers into Level 3 and ¥175 billion of transfers out of Level 3 for Long-term debt were primarily due to changes in the impact of unobservable inputs on the value of certain structured notes.

During the fiscal year ended March 31, 2014, the transfers into Level 3 included ¥4 billion of Trading securities, ¥1 billion of net Derivative liabilities, ¥7 billion of Available-for-sale securities and ¥1 billion of Long-term debt. Transfers into Level 3 for Trading securities and Available-for-sale securities were primarily due to decreased liquidity for certain foreign corporate bonds. Transfers into Level 3 for net Derivative liabilities were primarily due to decreased price observability for certain interest rate derivatives. Transfers into Level 3 for Long-term debt were primarily due to changes in the impact of unobservable inputs on the value of certain structured notes. During the fiscal year ended March 31, 2014, the transfers out of Level 3 included ¥12 billion of Trading securities, ¥1 billion of net Derivative liabilities, ¥30 billion of Available-for-sale securities, ¥2 billion of Other investments and ¥1 billion of Long-term debt. Transfers out of Level 3 for Trading securities were primarily due to increased liquidity for certain foreign corporate bonds. Transfers out of Level 3 for net Derivative liabilities were primarily due to increased price observability for certain credit derivatives. Transfers out of Level 3 for Available-for-sale securities were primarily due to increased liquidity for certain Japanese corporate bonds and other debt securities. Transfers out of Level 3 for Other investments were caused by a new listing of certain non-marketable equity securities. Transfers out of Level 3 for Long-term debt were primarily due to changes in the impact of unobservable inputs on the value of certain structured loans.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Quantitative information about Level 3 fair value measurements

The following table presents information about significant unobservable inputs related to the MHFG Group’s material classes of Level 3 assets and liabilities at March 31, 2013 and 2014:

2013
Products/Instruments	Fair value		Principal valuation technique	Unobservable inputs	Range of input values
(in billions of yen, except for ratios and basis points)
Trading securities and Available-for-sale securities:
Residential mortgage-backed securities		392	Discounted cash flow	Prepayment rate		0%–24%
			Price-based	Default rate		0%–5%
				Recovery rate		70%–100%
				Discount margin		7bps–2,616bps
Commercial mortgage-backed securities		341	Discounted cash flow	Discount margin		9bps–3,929bps
			Price-based
Corporate bonds and other debt securities		834	Discounted cash flow	Prepayment rate (1)		0%–43%
			Price-based	Default rate (1)		0%–8%
				Recovery rate (1)		15%–85%
				Discount margin (1)		0bps–4,918bps
				Discount margin (2)		0bps–1,232bps
Derivatives, net:
Interest rate contracts		11	Internal valuation model (3)	IR – IR correlation		42%–100%
				Default rate (4)		0%–63%
Foreign exchange contracts		17	Internal valuation model (3)	FX – IR correlation		36%–55%
				FX – FX correlation		55%–55%
				FX volatility		16%–26%
				Default rate (4)		0%–63%
Equity-related contracts		7	Internal valuation model(3)	Equity – IR correlation		0%–60%
				Equity – FX correlation		0%–70%
				Equity volatility		14%–48%
Credit-related contracts (5)		20	Internal valuation model (3)	Default rate		0%–67%
				Credit correlation		2%–100%
Long-term debt		381	Internal valuation model (3)	IR – IR correlation		42%–100%
				FX – IR correlation		36%–55%
				FX – FX correlation		55%–55%
				Equity – IR correlation		0%–60%
				Equity volatility		18%–48%
				Default rate		0%–10%
				Credit correlation		2%–100%

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2014
Products/Instruments	Fair value		Principal valuation technique	Unobservable inputs	Range of input values
(in billions of yen, except for ratios and basis points)
Trading securities and Available-for-sale securities:
Residential mortgage-backed securities		298	Discounted cash flow	Prepayment rate		1%–24%
			Price-based	Default rate		0%–4%
				Recovery rate		70%–100%
				Discount margin		8bps–2,002bps
Commercial mortgage-backed securities		252	Discounted cash flow	Discount margin		17bps – 3,441bps
			Price-based
Corporate bonds and other debt securities		724	Discounted cash flow	Prepayment rate (1)		0%–42%
			Price-based	Default rate (1)		0%–9%
				Recovery rate (1)		15%–75%
				Discount margin (1)		12bps–1,725bps
				Discount margin (2)		-122bps–1,303bps
Derivatives, net:
Interest rate contracts		17	Internal valuation model (3)	IR – IR correlation		23%–100%
				Default rate (4)		0%–63%
Foreign exchange contracts		11	Internal valuation model (3)	FX – IR correlation		28%–52%
				FX – FX correlation		55%–55%
				FX volatility		14%–25%
				Default rate (4)		0%–63%
Equity-related contracts		1	Internal valuation model (3)	Equity – IR correlation		0%–60%
				Equity – FX correlation		0%–70%
				Equity volatility		18%–35%
Credit-related contracts (5)		17	Internal valuation model (3)	Default rate		0%–47%
				Credit correlation		1%–100%
Long-term debt		501	Internal valuation model (3)	IR – IR correlation		23%–100%
				FX – IR correlation		28%–52%
				FX – FX correlation		55%–55%
				Equity – IR correlation		0%–60%
				Equity – FX correlation		0%–70%
				Equity volatility		13%–37%
				Default rate		0%–5%
				Credit correlation		19%–100%

Notes:

(1) These inputs are mainly used for determining the fair values of securitization products such as CDO, CLO and ABS, other than RMBS and CMBS.

(2) This input is mainly used for determining the fair values of Japanese corporate bonds and foreign corporate bonds.

(3) Internal valuation model includes discounted cash flow models and the Black-Scholes option pricing model.

(4) This input represents the counterparty default rate derived from the MHFG Group’s own internal credit analysis.

(5) The majority of the fair value of credit derivatives in Level 3 relates to credit derivatives economically hedging the credit risk in certain securitization products. The unobservable inputs of these credit derivatives have already been included in the unobservable inputs related to Trading securities and Available-for-sale securities disclosed above.

IR = Interest rate

FX = Foreign exchange

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Sensitivity to unobservable inputs and interrelationship between unobservable inputs

The following is a description of the sensitivities and interrelationships of the significant unobservable inputs used to measure the fair values of Level 3 assets and liabilities.

(1) Prepayment rate

The prepayment rate is the estimated rate at which voluntary unscheduled repayments of the principal of the underlying assets are expected to occur. The movement of the prepayment rate is generally negatively correlated with borrower delinquency. A change in prepayment rate would impact the valuation of the fair values of financial instruments either positively or negatively, depending on the structure of financial instruments.

(2) Default rate

The default rate is an estimate of the likelihood of not collecting contractual payments. An increase in the default rate would generally be accompanied by a decrease in the recovery rate and an increase in the discount margin. It would also generally impact the valuation of the fair values of financial instruments negatively.

(3) Recovery rate

The recovery rate is an estimate of the percentage of contractual payments that would be collected in the event of a default. An increase in recovery rate would generally be accompanied by a decrease in the default rate. It would also generally impact the valuation of the fair values of financial instruments positively.

(4) Discount margin

The discount margin is the portion of the interest rate over a benchmark market interest rate such as LIBOR or swap rates. It primarily consists of a risk premium component which is the amount of compensation that market participants require due to the uncertainty inherent in the financial instruments’ cash flows resulting from credit risk. An increase in discount margin would generally impact the valuation of the fair values of financial instruments negatively.

(5) Correlation

Correlation is the likelihood of the movement of one input relative to another based on an established relationship. The change in correlation would impact the valuation of derivatives either positively or negatively, depending on the nature of the underlying assets.

(6) Volatility

Volatility is a measure of the expected change in variables over a fixed period of time. Some financial instruments benefit from an increase in volatility and others benefit from a decrease in volatility. Generally, for a long position in an option, an increase in volatility would result in an increase in the fair values of financial instruments.

Items measured at fair value on a nonrecurring basis

Certain assets and liabilities are measured at fair value on a nonrecurring basis and are not included in the tables above. These assets and liabilities primarily include items that are measured at the lower of cost or fair value, and

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

items that were initially measured at cost and have been written down to fair value as a result of impairment. The following table shows the fair value hierarchy for these items as of March 31, 2013 and 2014.

2013	Total		Level 1		Level 2		Level 3		Aggregate cost
	(in billions of yen)
Assets:
Loans		222		—		—		222		343
Loans held-for-sale		5		—		5		—		5
Other investments		11		—		—		11		16
Premises and equipment—net		1		—		—		1		5
Total assets at fair value on a nonrecurring basis		239		—		5		234		369

2014	Total		Level 1		Level 2		Level 3		Aggregate cost
	(in billions of yen)
Assets:
Loans		124		—		—		124		208
Loans held-for-sale		33		—		—		33		34
Other investments		5		—		—		5		6
Premises and equipment—net		1		—		—		1		2
Goodwill		—		—		—		—		4
Total assets at fair value on a nonrecurring basis		163		—		—		163		254

Loans in the table above have been impaired and measured based upon the fair value of the underlying collateral.

Loans held-for-sale in the table above are accounted for at the lower of cost or fair value at the end of the period. The items for which fair values are determined by using actual or contractually determined selling price data are classified as Level 2. Due to the lack of current observable market information, the determination of the fair values for items other than the aforementioned requires significant adjustment based upon management judgment and estimation, which results in such items being classified in Level 3 of the hierarchy.

Other investments in the table above, which consist of certain equity method investments and non-marketable equity securities, have been impaired and written down to fair value. The fair values of the impaired marketable equity method investments are determined by their quoted market prices. As the securities are traded on an active exchange market, they are classified as Level 1. The fair values of the impaired non-marketable equity securities, which include non-marketable equity method investments, are determined primarily by using a liquidation value technique. As significant management judgment or estimation is required in the determination of the fair values of non-marketable equity securities, they are classified as Level 3.

Premises and equipment—net in the table above have been impaired and written down to fair value.

Goodwill in the table above is entirely related to PT. Mizuho Balimor Finance reporting unit. Due to the decline of the fair value of the reporting unit, the carrying amount of the goodwill was reduced to its fair value and an impairment loss was recognized. As the determination of fair value of the goodwill required significant management judgment and estimation, the item is classified as Level 3.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Fair value option

The MHFG Group elected the fair value option for certain eligible financial instruments described below.

Foreign currency denominated available-for-sale securities

Prior to the adoption of the fair value option in accordance with ASC 825, the changes in fair value of foreign currency denominated available-for-sale securities had been accounted for in AOCI, while the changes in fair value caused by foreign exchange fluctuation of foreign currency denominated financial liabilities had been accounted for in earnings. The MHFG Group elected the fair value option for those securities to mitigate the volatility in earnings due to the difference in the recognition of foreign exchange risk between available-for-sale securities and financial liabilities. Following the election of the fair value option, these securities have been reported as trading securities in Trading account assets.

Certain hybrid financial instruments

The MHFG Group issues structured notes as part of its client-driven activities. Structured notes are debt instruments that contain embedded derivatives. The Group elected the fair value option for certain structured notes to mitigate accounting mismatches and to achieve operational simplifications. Following the election of the fair value option, these structured notes continue to be reported in Long-term debt and interest on these structured notes continues to be reported in Interest expense on long-term debt based on the contractual rates. The differences between the aggregate fair value of these structured notes for which the fair value option has been elected and the aggregate unpaid principal balance of such instruments were ¥9 billion and ¥14 billion at March 31, 2013 and 2014, respectively. The net unrealized gains (losses) resulting from changes in fair values of these structured notes of ¥(30) billion and ¥4 billion, which included the fair value changes attributable to changes in the Group’s own credit risk, were recorded in Other noninterest income (expenses) for the fiscal years ended March 31, 2013 and 2014, respectively.

Fair value of financial instruments

ASC 825 requires the disclosure of the estimated fair value of financial instruments. The fair value of financial instruments is the amount that would be exchanged between willing parties, other than in a forced sale or liquidation. Quoted market prices, if available, are best utilized as estimates of the fair values of financial instruments. However, since no quoted market prices are available for certain financial instruments, fair values for such financial instruments have been estimated based on management’s assumptions, discounted cash flow models or other valuation techniques. Such estimation methods are described in more detail below. These estimates could be significantly affected by different sets of assumptions. There are certain limitations to management’s best judgment in estimating fair values of financial instruments and inherent subjectivity involved in estimation methodologies and assumptions used to estimate fair value. Accordingly, the net realizable or liquidation values could be materially different from the estimates presented below.

ASC 825 does not require the disclosure of the fair value of nonfinancial instruments.

The following is a description of the valuation methodologies used for estimating the fair value for financial assets and liabilities not carried at fair value on the MHFG Group’s consolidated balance sheets.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Cash and due from banks, call loans and funds sold, and receivables under resale agreements and securities borrowing transactions

The carrying value of short-term financial assets, such as cash and due from banks, interest-bearing deposits in other banks, call loans and funds sold, and receivables under resale agreements and securities borrowing transactions approximates the fair value of these assets since they generally involve limited losses from credit risk or have short-term maturities with interest rates that approximate market rates.

Investments

The fair value of held-to-maturity securities is determined primarily by using the same procedures, and techniques described for trading securities and available-for-sale securities aforementioned in this section. The fair value of other equity interests, which primarily comprise non-marketable equity securities, is not readily determinable, and their carrying amounts of ¥537 billion and ¥526 billion at March 31, 2013 and 2014, respectively, were not included in the disclosure.

Loans

Performing loans have been fair valued as groups of similar loans based on the type of loan, credit quality, prepayment assumptions and remaining maturity. The fair value of performing loans is determined based on discounted cash flows using interest rates approximating the MHFG Group’s current rates for similar loans. The fair value of impaired loans is determined based on either discounted cash flows incorporating the Group’s best estimate of the expected future cash flows or the fair value of the underlying collateral, if impaired loans are collateral dependent.

Other financial assets

The carrying value of other financial assets, which primarily consist of accounts receivable from brokers, dealers, and customers for securities transactions, accrued income and collateral provided for derivative transactions, approximates the fair value of these assets since they generally involve limited losses from credit risk or have short-term maturities with interest rates that approximate market rates. The majority of other financial assets is classified as Level 2, and included in the table of Note 12 “Other assets and liabilities”.

Noninterest-bearing deposits, call money and funds purchased, and payables under repurchase agreements and securities lending transactions

The carrying value of short-term financial liabilities, such as noninterest-bearing deposits, call money and funds purchased, and payables under repurchase agreements and securities lending transactions approximates the fair value of these liabilities since they generally have short-term maturities with interest rates that approximate market rates.

Interest-bearing deposits

The carrying value of demand deposits approximates the fair value since it represents the amount payable on demand at the balance sheet date. The fair value of time deposits and certificates of deposit is primarily estimated based on discounted cash flow analysis using current interest rates for instruments with similar maturities. The carrying value of short-term certificates of deposit approximates the fair value.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Due to trust accounts

The carrying value of due to trust accounts approximates the fair value since they generally have short-term maturities with interest rates that approximate market rates.

Other short-term borrowings

The carrying value of the majority of short-term borrowings approximates the fair value since they generally have short-term maturities with interest rates that approximate market rates. The fair value of certain borrowings is estimated based on discounted cash flow analysis using interest rates approximating the MHFG Group’s incremental borrowing rates for instruments with similar maturities.

Long-term debt

Long-term debt is fair valued using quoted market prices, if available. Otherwise, the fair value of long-term debt is estimated based on discounted cash flow analysis using interest rates approximating the MHFG Group’s incremental borrowing rates for instruments with similar maturities.

Other financial liabilities

The carrying value of other financial liabilities, which primarily consist of accounts payable to brokers, dealers, and customers for securities transactions, accrued expenses and collateral accepted for derivative transactions, approximates the fair value since they generally have short-term maturities with interest rates that approximate market rates. The majority of other financial liabilities is classified as Level 2, and included in the table of Note 12 “Other assets and liabilities”.

The fair value of certain off-balance-sheet financial instruments, such as commitments to extend credit and commercial letters of credit, is not considered material to the consolidated balance sheets at March 31, 2013 and 2014.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The following table shows the carrying amounts and fair values at March 31, 2013 and 2014, of certain financial instruments, excluding financial instruments which are carried at fair value on a recurring basis and those outside the scope of ASC 825 such as the equity method investments and lease contracts as defined in ASC 840, “Leases” (“ASC 840”) :

	2013
	Carrying amount		Estimated fair value
			Total		Level 1		Level 2		Level 3
	(in billions of yen)
Financial assets:
Cash and due from banks, call loans and funds sold, and receivables under resale agreements and securities borrowing transactions		27,583		27,583		903		26,680		—
Investments		3,000		3,020		3,020		—		—
Loans, net of allowance for loan losses (Note)		69,028		70,261		—		—		70,261
Financial liabilities:
Noninterest-bearing deposits, call money and funds purchased, and payables under repurchase agreements and securities lending transactions		48,048		48,048		12,796		35,252		—
Interest-bearing deposits		87,247		87,210		34,596		52,614		—
Due to trust accounts		619		619		—		619		—
Other short-term borrowings		6,724		6,723		—		6,723		—
Long-term debt		8,235		8,598		—		7,967		631

	2014
	Carrying amount		Estimated fair value
			Total		Level 1		Level 2		Level 3
	(in billions of yen)
Financial assets:
Cash and due from banks, call loans and funds sold, and receivables under resale agreements and securities borrowing transactions		34,563		34,563		1,437		33,126		—
Investments		4,040		4,058		4,058		—		—
Loans, net of allowance for loan losses (Note)		72,801		73,975		—		—		73,975
Financial liabilities:
Noninterest-bearing deposits, call money and funds purchased, and payables under repurchase agreements and securities lending transactions		44,124		44,124		13,543		30,581		—
Interest-bearing deposits		88,744		88,705		37,394		51,311		—
Due to trust accounts		742		742		—		742		—
Other short-term borrowings		6,024		6,024		—		6,024		—
Long-term debt		9,176		9,441		—		8,600		841

Note: Loans, net of allowance for loan losses include items measured at fair value on a nonrecurring basis.

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29. Offsetting of financial assets and financial liabilities

Derivatives

The MHFG Group enters into master netting arrangements such as International Swaps and Derivatives Association, Inc. (“ISDA”) or similar agreements with counterparties to manage mainly credit risks associated with counterparty default. If the predetermined events including counterparty default occur, these enforceable master netting arrangements or similar agreements give the Group the right to offset derivative receivables and derivative payables and related financial collateral such as cash and securities with the same counterparty.

Repurchase and resale agreements and securities lending and borrowing transactions

Repurchase and resale agreements and securities lending and borrowing transactions are generally covered by industry standard master repurchase agreements and industry standard master securities lending agreements with netting terms to manage mainly credit risks associated with counterparty default. In the event of default by the counterparty, these agreements with netting terms provide the Group with the right to offset receivables and payables related to such transactions with the same counterparty, and to liquidate the collateral held.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

The following tables provide information about the offsetting of financial assets and financial liabilities at March 31, 2013 and 2014. The tables include derivatives, repurchase and resale agreements, and securities lending and borrowing transactions that are subject to enforceable master netting arrangements or similar agreements irrespective of whether or not they are offset on the Group’s consolidated balance sheets.

							Amounts not offset on the balance sheet(3)
	Gross amounts recognized		Gross amounts offset on the balance sheet		Net amounts presented on the balance sheet(2)		Financial instruments(4)		Cash collateral		Net amounts
	(in billions of yen)
2013
Assets (1):
Derivatives		13,019		—		13,019		11,289		446		1,284
Receivables under resale agreements		8,869		—		8,869		8,812		—		57
Receivables under securities borrowing transactions		5,544		—		5,544		5,534		—		10
Total		27,432		—		27,432		25,635		446		1,351
Liabilities (1):
Derivatives		12,712		—		12,712		11,234		653		825
Payables under repurchase agreements		17,397		—		17,397		17,280		—		117
Payables under securities lending transactions		11,326		—		11,326		11,320		—		6
Total		41,435		—		41,435		39,834		653		948
2014
Assets (1):
Derivatives		9,880		—		9,880		8,702		406		772
Receivables under resale agreements		8,236		—		8,236		8,200		—		36
Receivables under securities borrowing transactions		4,990		—		4,990		4,978		—		12
Total		23,106		—		23,106		21,880		406		820
Liabilities (1):
Derivatives		9,648		—		9,648		8,621		431		596
Payables under repurchase agreements		16,690		—		16,690		16,667		—		23
Payables under securities lending transactions		6,085		—		6,085		6,082		—		3
Total		32,423		—		32,423		31,370		431		622

Notes:

(1) Amounts relating to master netting arrangements or similar agreements where the Group does not have the legal right of set-off or where uncertainty exists as to the enforceability of these agreements are excluded. For derivatives, the table includes amounts relating to over-the-counter (“OTC”) and OTC-cleared derivatives that are subject to enforceable master netting arrangements or similar agreements.

(2) Derivative assets and liabilities are recorded in Trading account assets and Trading account liabilities, respectively.

(3) Amounts do not exceed the net amounts presented on the balance sheet and do not include the effect of overcollateralization, where it exists.

(4) For derivatives, amounts include derivative assets or liabilities and securities collateral that are eligible for offsetting under enforceable master netting arrangements or similar agreements.

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30. Related party transactions

Transactions with directors, executive officers, and their associates

The banking subsidiaries of MHFG make loans to the MHFG Group’s directors, executive officers, and their associates in their ordinary course of business. At March 31, 2013 and 2014, outstanding loans to such related parties were not considered significant. These related party loans were made on substantially the same terms, including interest rate and collateral, as those prevailing at the same time for comparable transactions with unrelated parties. At March 31, 2013 and 2014, there were no loans to these related parties that were considered impaired.

Other transactions, such as deposits, were entered into between MHFG’s subsidiaries and the MHFG Group’s directors, executive officers, and their associates during the fiscal years ended March 31, 2012, 2013 and 2014. The outstanding amounts of these transactions, which were made in the ordinary course of business with terms equivalent to those with unrelated parties, were not considered significant.

Transactions with other related parties

A number of transactions were entered into with other related parties, such as MHFG’s employees and affiliates accounted for under the equity method. These transactions included loans, deposits, and other banking services. They were not significant in amount and were conducted with substantially the same terms as those for comparable transactions with unrelated parties.

31. Business segment information

Under U.S. GAAP, companies report segment information based on the way management disaggregates the company for making operating decisions. The MHFG Group’s operating segments are based on the nature of the products and services provided, the type of customer and the Group’s management organization. The business segment information set forth below is derived from the internal management reporting systems used by management to measure the performance of the Group’s business segments. The management measures the performance of each of the operating segments primarily in terms of “net business profits” in accordance with internal managerial accounting rules and practices. Net business profits is used in Japan as a measure of the profitability of core banking operations, and is defined as gross profits (or the sum of net interest income, fiduciary income, net fee and commission income, net trading income and net other operating income) less general and administrative expenses. Measurement by net business profits is required for regulatory reporting to the Financial Services Agency. Therefore, the format and information are presented primarily on the basis of Japanese GAAP and are not consistent with the consolidated financial statements prepared in accordance with U.S. GAAP. A reconciliation is provided for the segments’ total net business profits with Income before income tax expense under U.S. GAAP.

Beginning on April 1, 2013, the MHFG Group moved to a new group operational structure and established ten business units such as Personal Banking, Retail Banking, Corporate Banking (Large Corporations), etc., and head-office coordination divisions to determine strategies and initiatives across the group-wide banking, trust banking, securities, and other business areas, based on the ten business units across MHBK (the former MHBK and the former MHCB merged on July 1, 2013), MHTB, MHSC, etc. The MHFG Group realigned the reportable segments to reflect the new organizational structure.

The MHFG Group engages in banking, trust banking, securities, and other businesses through its subsidiaries and affiliates. As these subsidiaries and affiliates are in different industries and regulatory environments, MHFG

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

discloses business segment information based on the relevant principal consolidated subsidiaries such as MHBK (the former MHBK and the former MHCB), MHTB, and MHSC for investors to measure the present and future cash flows properly.

Operating segments of MHBK are aggregated based on the type of customer characteristics, and are aggregated into the following seven reportable segments: Personal Banking; Retail Banking; Corporate Banking (Large Corporations); Corporate Banking; Financial Institutions & Public Sector Business; International Banking; and Trading and others.

MHBK

Personal Banking

This segment provides financial products and services, such as housing loans, deposits, investment trusts, and individual insurance to individual customers through MHBK’s nationwide branches and ATM network as well as telephone and the internet banking services. In addition, this segment handles trust products as an agent of MHTB.

Retail Banking

This segment provides financial products and services, such as comprehensive consulting services of business succession and asset inheritance and asset management for business owners and high-net-worth customers. This segment also provides overall banking services for SMEs.

Corporate Banking (Large Corporations)

This segment provides a full range of financial solutions on a global basis to Japanese large corporations and their affiliates by integrating the Group’s specialty functions including banking, trust, and securities, based on solid relationships with MHBK’s domestic customers, and by utilizing its global industry knowledge.

Corporate Banking

This segment provides, to larger SMEs, financial products and services including a range of solution businesses in accordance with the growth strategy of MHBK’s corporate customers. This segment provides solutions for stable fund-raising, mergers and acquisitions, and initial public offerings for customers in their start-up or growth stages, and management buy-out, business succession, entry to new business, and business restructuring for customers in mature or transition stages.

Financial Institutions & Public Sector Business

This segment provides advisory services and solutions such as advice on financial strategy and risk management to financial institutions and provides comprehensive financial products and services that include funding support via the subscription and underwriting of bonds etc., to public sector entities.

International Banking

This segment provides unified support both in Japan and overseas for MHBK’s Japanese corporate customers to expand their overseas operations, and also promotes business with non-Japanese corporate customers in various countries through its global network. Further, this segment offers products such as project finance and trade finance for overseas customers.

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MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Trading and others

This segment provides derivatives and other risk hedging products to satisfy MHBK’s customers’ financial and business risk control requirements. It is also engaged in MHBK’s proprietary trading, such as foreign exchange and bond trading, and asset and liability management. This segment also includes costs incurred by the head office functions of MHBK.

MHTB

MHTB provides products and services related to trust, real estate, securitization and structured finance, pension and asset management, and stock transfers.

MHSC

MHSC provides full-line securities services to corporations, financial institutions, public sector entities, and individuals.

Others

This segment consists of MHFG, its subsidiaries other than MHBK, MHTB, and MHSC, and its equity-method affiliates. They provide a wide range of customers with their various products and services such as those related to trust and custody, asset management, and private banking through companies such as TCSB, Mizuho Asset Management Co., Ltd., DIAM Co., Ltd. (an equity-method affiliate), and Mizuho Private Wealth Management Co., Ltd. This segment also provides non-banking services, including research and consulting services through Mizuho Research Institute Ltd., information technology-related services through Mizuho Information & Research Institute, Inc., and advisory services to financial institutions through Mizuho Financial Strategy Co., Ltd.

The information below for reportable segments is derived from the internal management reporting systems. Management does not use information on segments’ assets to allocate resources and assess performance and has not prepared information on segment assets. Accordingly, information on segment assets is not available.

	The former MHBK (Consolidated)
				The former MHBK (Non-consolidated)														The former MHIS (Consolidated)		Others
2012(1)	Total			Total		Personal Banking (a)		Retail Banking (b)		Corporate Banking (Large Corporations) (c)		Corporate Banking (d)		Financial Institution & Public Sector Business (e)		Trading and others (f)		(g)		(h)
	(in billions of yen)
Gross profits:
Net interest income (expense)		583.9			545.4		224.3		95.1		17.8		118.6		22.2		67.4		0.7		37.8
Net noninterest income		305.8			253.3		32.1		41.0		19.0		68.2		8.6		84.4		43.9		8.6
Total		889.7			798.7		256.4		136.1		36.8		186.8		30.8		151.8		44.6		46.4
General and administrative expenses		608.5			556.4		218.6		108.2		18.5		86.4		14.5		110.2		40.9		11.2
Others		(14.0	)		—		—		—		—		—		—		—		—		(14.0	)
Net business profits (losses)		267.2			242.3		37.8		27.9		18.3		100.4		16.3		41.6		3.7		21.2

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MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

	The former MHCB (Consolidated)																					MHTB (Consolidated)			Others			MHFG (Consolidated)
				The former MHCB (Non-consolidated)												The former MHSC (Consolidated)			Others
2012(1)	Total			Total		Corporate Banking (Large Corporations) (i)		Corporate Banking (j)		Financial Institution & Public Sector Business (k)		Inter- national Banking (l)		Trading and others (m)		(n)			(o)			(p)			(q)			Total
(in billions of yen)
Gross profits:
Net interest income (expense)		468.3			395.0		150.6		2.7		18.1		90.3		133.3		(8.1	)		81.4			42.5			(6.4	)		1,088.3
Net noninterest income		449.4			286.8		114.4		1.1		15.8		86.9		68.6		151.7			10.9			104.8			54.8			914.8
Total		917.7			681.8		265.0		3.8		33.9		177.2		201.9		143.6			92.3			147.3			48.4			2,003.1
General and administrative expenses		465.4			244.9		75.6		1.3		11.6		60.3		96.1		192.9			27.6			92.3			40.1			1,206.3
Others		(52.1	)		—		—		—		—		—		—		(0.1	)		(52.0	)		(3.7	)		(7.9	)		(77.7	)
Net business profits (losses)		400.2			436.9		189.4		2.5		22.3		116.9		105.8		(49.4	)		12.7			51.3			0.4			719.1

	The former MHBK (Consolidated)
				The former MHBK (Non-consolidated)														Others
2013(1)(2)(4)	Total			Total		Personal Banking (a)		Retail Banking (b)		Corporate Banking (Large Corporations) (c)		Corporate Banking (d)		Financial Institution & Public Sector Business (e)		Trading and others (f)		(g)
	(in billions of yen)
Gross profits:
Net interest income (expense)		550.6			513.8		219.2		83.3		14.9		106.1		19.9		70.4		36.8
Net noninterest income		360.3			313.7		33.9		42.3		19.3		70.7		11.0		136.5		46.6
Total		910.9			827.5		253.1		125.6		34.2		176.8		30.9		206.9		83.4
General and administrative expenses		568.2			524.4		218.6		113.7		11.6		73.2		14.3		93.0		43.8
Others		(7.4	)		—		—		—		—		—		—		—		(7.4	)
Net business profits (losses)		335.3			303.1		34.5		11.9		22.6		103.6		16.6		113.9		32.2

2013(1)(2)(4)	The former MHCB (Consolidated)																						MHTB (Consolidated)			Others			MHFG (Consolidated)
				The former MHCB (Non-consolidated)													MHSC (Consolidated)			Others
	Total			Total		Corporate Banking (Large Corporations) (h)		Corporate Banking (i)			Financial Institution & Public Sector Business (j)		Inter- national Banking (k)		Trading and others (l)		(m)			(n)			(o)			(p)			Total
(in billions of yen)
Gross profits:
Net interest income (expense)		486.1			401.7		140.9		0.5			16.3		108.2		135.8		(1.8	)		86.2			39.5			(0.3	)		1,075.9
Net noninterest income		572.8			333.4		103.3		0.2			13.2		104.7		112.0		229.0			10.4			105.0			57.7			1,095.8
Total		1,058.9			735.1		244.2		0.7			29.5		212.9		247.8		227.2			96.6			144.5			57.4			2,171.7
General and administrative expenses		471.9			241.1		76.8		1.3			12.2		66.6		84.2		197.1			33.7			90.1			40.8			1,171.0
Others		(50.0	)		—		—		—			—		—		—		—			(50.0	)		(3.5	)		(27.6	)		(88.5	)
Net business profits (losses)		537.0			494.0		167.4		(0.6	)		17.3		146.3		163.6		30.1			12.9			50.9			(11.0	)		912.2

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

2014(1)(2)(3)(4)	MHBK (Consolidated)																							MHTB (Consolidated)			MHSC (Consolidated)		Others			MHFG (Consolidated)
				MHBK (Non-consolidated)																	Others
	Total			Total		Personal Banking (a)		Retail Banking (b)		Corporate Banking (Large Corporations) (c)		Corporate Banking (d)		Financial Institution & Public Sector Business (e)		Inter- national Banking (f)		Trading and others (g)			(h)			(i)			(j)		(k)			Total
(in billions of yen)
Gross profits:
Net interest income		933.8			800.1		165.0		59.8		170.2		77.9		30.7		128.9		167.6			133.7			40.2			2.9		131.4			1,108.3
Net noninterest income (expenses)		407.4			398.2		32.9		34.8		126.7		51.8		20.1		139.8		(7.9	)		9.2			108.1			283.9		127.6			927.0
Total		1,341.2			1,198.3		197.9		94.6		296.9		129.7		50.8		268.7		159.7			142.9			148.3			286.8		259.0			2,035.3
General and administrative expenses		711.3			659.0		171.3		87.8		83.8		58.8		25.1		82.5		149.7			52.3			90.9			246.2		180.9			1,229.3
Others		(56.1	)		—		—		—		—		—		—		—		—			(56.1	)		(2.9	)		—		(2.7	)		(61.7	)
Net business profits		573.8			539.3		26.6		6.8		213.1		70.9		25.7		186.2		10.0			34.5			54.5			40.6		75.4			744.3

Notes:

(1) As for the fiscal year ended March 31, 2012, “Others (h)”, “Others (o)”, and “Others (q)” include elimination of transactions between consolidated subsidiaries. As for the fiscal year ended March 31, 2013, “Others (g)”, “Others (n)”, and “Others (p)” include elimination of transactions between consolidated subsidiaries. As for the fiscal year ended March 31, 2014, “Others (h)” and “Others (k)” include elimination of transactions between consolidated subsidiaries.

(2) Beginning on April 1, 2013, the MHFG Group moved to a new group operational structure and realigned the reportable segments to reflect the new organizational structure. In addition, new allocation methods have been applied to the calculation of “Gross profits” and “General and administrative expenses”. Figures for the fiscal year ended March 31, 2013 have been reclassified under the new allocation methods. The effect of the change of allocation methods is not significant.

(3) As for the fiscal year ended March 31, 2014, “MHBK (Non-consolidated)” represents the sum of the performance of the former MHCB for the first quarter and the new MHBK for the second, third, and fourth quarters, while “Others (h)” includes the performance of the former MHBK for the first quarter, in light of the merger of the former MHBK and the former MHCB conducted in July 2013.

(4) Beginning on April 1, 2013, MHSC was turned into a directly-held subsidiary of MHFG. As for the fiscal year ended March 31, 2013, “MHSC (Consolidated) (m)” represents the performance of the former MHSC for the first three quarters and the new MHSC for the fourth quarter, while “Others (g)” includes the performance of the former MHIS for the first three quarters. As for the fiscal year ended March 31, 2014, “MHSC (Consolidated) (j)” represents the performance of the new MHSC, in light of the merger of the former MHSC and the former MHIS conducted in January 2013.

Aggregation of MHBK and MHCB

2012	MHBK and MHCB
	Personal Banking (a)		Retail Banking (b)		Corporate Banking (Large Corporations) (c)		Corporate Banking (d)		Financial Institution & Public Sector Business (e)		International Banking (f)		Trading and others (g)		Total
	(in billions of yen)
Gross profits:
Net interest income		224.3		95.1		168.4		121.3		40.3		90.3		200.7		940.4
Net noninterest income		32.1		41.0		133.4		69.3		24.4		86.9		153.0		540.1
Total		256.4		136.1		301.8		190.6		64.7		177.2		353.7		1,480.5
General and administrative expenses		218.6		108.2		94.1		87.7		26.1		60.3		206.3		801.3
Others		—		—		—		—		—		—		—		—
Net business profits		37.8		27.9		207.7		102.9		38.6		116.9		147.4		679.2

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MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

2013	MHBK and MHCB
	Personal Banking (a)		Retail Banking (b)		Corporate Banking (Large Corporations) (c)		Corporate Banking (d)		Financial Institution & Public Sector Business (e)		International Banking (f)		Trading and others (g)		Total
	(in billions of yen)
Gross profits:
Net interest income		219.2		83.3		155.8		106.6		36.2		108.2		206.2		915.5
Net noninterest income		33.9		42.3		122.6		70.9		24.2		104.7		248.5		647.1
Total		253.1		125.6		278.4		177.5		60.4		212.9		454.7		1,562.6
General and administrative expenses		218.6		113.7		88.4		74.5		26.5		66.6		177.2		765.5
Others		—		—		—		—		—		—		—		—
Net business profits		34.5		11.9		190.0		103.0		33.9		146.3		277.5		797.1

2014	MHBK and MHCB
	Personal Banking (a)		Retail Banking (b)		Corporate Banking (Large Corporations) (c)		Corporate Banking (d)		Financial Institution & Public Sector Business (e)		International Banking (f)		Trading and others (g)		Total
	(in billions of yen)
Gross profits:
Net interest income		218.5		80.0		172.7		103.3		35.4		128.9		185.0		923.8
Net noninterest income		41.6		45.3		131.4		64.7		22.3		139.8		15.2		460.3
Total		260.1		125.3		304.1		168.0		57.7		268.7		200.2		1,384.1
General and administrative expenses		226.4		116.7		87.2		77.7		29.0		82.5		171.6		791.1
Others		—		—		—		—		—		—		—		—
Net business profits		33.7		8.6		216.9		90.3		28.7		186.2		28.6		593.0

Note: The former MHBK and the former MHCB merged on July 1, 2013. Figures for the fiscal years ended March 31, 2012 and 2013 represent the simple aggregation of the performance of the former MHBK and the former MHCB, and figures for the fiscal year ended March 31, 2014 represent the simple aggregation of the performance of the former MHBK and the former MHCB for the first quarter, and the new MHBK for the second, third, and fourth quarters. Beginning on April 1, 2013, the MHFG Group moved to a new group operational structure and realigned the reportable segments to reflect the new organizational structure. In addition, new allocation methods have been applied to the calculation of “Gross profits” and “General and administrative expenses”. Figures for the fiscal year ended March 31, 2013 have been reclassified under the new allocation methods.

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MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Reconciliation

As explained above, the measurement base for the internal management reporting system and the income and expenses items covered are different from the accompanying consolidated statements of income. Therefore, it is impracticable to present reconciliations of all the business segments’ information, other than net business profits, to corresponding items in the accompanying consolidated statements of income. A reconciliation of total net business profits under the internal management reporting system for the fiscal years ended March 31, 2012, 2013, and 2014 presented above to Income before income tax expense shown on the consolidated statements of income is as follows:

	2012			2013			2014
	(in billions of yen)
Net business profits		719.1			912.2			744.3
U.S. GAAP adjustments		87.2			129.2			(325.4	)
(Provision) credit for loan losses		23.0			(139.9	)		126.2
Net gains (losses) related to equity investments		(90.5	)		28.2			178.7
Non-recurring personnel expense		(39.3	)		(23.5	)		(14.8	)
Gains on disposal of premises and equipment		19.9			12.4			10.5
(Provision) credit for losses on off-balance-sheet instruments		1.2			(4.6	)		(12.1	)
Others—net		(57.8	)		(28.8	)		18.9
Income before income tax expense		662.8			885.2			726.3

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MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

32. Foreign activities

The following table presents consolidated income statement and total assets information by major geographic area. Foreign activities are defined as business transactions that involve customers residing outside of Japan. However, as the MHFG Group’s operations are highly integrated globally, estimates and assumptions have been made for an allocation among the geographic areas.

	Japan		Americas		Europe		Asia/Oceania excluding Japan, and others		Total
	(in billions of yen)
Fiscal year ended March 31, 2012:
Total revenue (1)		1,965.7		251.3		132.0		178.2		2,527.2
Total expenses (2)		1,561.2		104.0		102.9		96.3		1,864.4
Income before income tax expense		404.5		147.3		29.1		81.9		662.8
Net income		419.2		131.2		28.1		70.5		649.0
Total assets at end of fiscal year		124,443.6		25,368.9		8,868.5		7,680.6		166,361.6
Fiscal year ended March 31, 2013:
Total revenue (1)		2,190.7		383.7		125.8		162.6		2,862.8
Total expenses (2)		1,668.9		140.5		48.4		119.8		1,977.6
Income before income tax expense		521.8		243.2		77.4		42.8		885.2
Net income		524.7		252.3		75.0		29.2		881.2
Total assets at end of fiscal year		126,768.8		31,168.8		10,591.2		10,218.2		178,747.0
Fiscal year ended March 31, 2014:
Total revenue (1)		1,783.9		349.9		152.9		218.9		2,505.6
Total expenses (2)		1,397.3		144.6		96.3		141.1		1,779.3
Income before income tax expense		386.6		205.3		56.6		77.8		726.3
Net income		198.9		189.7		54.0		57.6		500.2
Total assets at end of fiscal year		124,557.7		27,527.8		10,784.5		12,829.3		175,699.3

Notes:

(1) Total revenue is comprised of Interest and dividend income and Noninterest income.

(2) Total expenses are comprised of Interest expense, Provision (credit) for loan losses and Noninterest expenses.

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MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

33. Mizuho Financial Group, Inc., parent company

The following tables present the parent company only financial information of MHFG:

Condensed balance sheets

	2013		2014
	(in millions of yen)
Assets:
Cash and due from banks		200		167
Interest-bearing deposits in other banks		26,165		17,103
Investments in subsidiaries and affiliated companies		6,962,630		7,501,486
Other		152,351		210,622
Total		7,141,346		7,729,378
Liabilities and shareholders’ equity:
Short-term borrowings		1,146,995		1,061,460
Long-term debt		240,000		240,000
Other liabilities		26,231		49,448
Shareholders’ equity		5,728,120		6,378,470
Total		7,141,346		7,729,378

Condensed statements of income

	2012		2013		2014
	(in millions of yen)
Income:
Dividends from subsidiaries and affiliated companies		7,955		233,056		285,130
Management fees from subsidiaries		29,747		28,835		31,146
Other income		12,643		34,668		33,894
Total		50,345		296,559		350,170
Expenses:
Operating expenses		21,260		21,075		22,592
Interest expense		16,383		15,870		14,608
Other expense		1,431		1,207		5,724
Total		39,074		38,152		42,924
Equity in undistributed net income of subsidiaries		645,308		617,565		191,865
Income before income tax expense		656,579		875,972		499,111
Income tax expense		190		560		627
Net income		656,389		875,412		498,484

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MIZUHO FINANCIAL GROUP, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued)

Condensed statements of cash flows

	2012			2013			2014
	(in millions of yen)
Cash flows from operating activities:
Net income		656,389			875,412			498,484
Adjustments and other		(644,977	)		(685,149	)		(222,940	)
Net cash provided by operating activities		11,412			190,263			275,544
Cash flows from investing activities:
Payments for purchases of securities of subsidiaries		(212	)		—			—
Net change in other investing activities		80			1,570			2,631
Net cash provided by (used in) investing activities		(132	)		1,570			2,631
Cash flows from financing activities:
Net change in short-term borrowings		60,000			(40,000	)		(90,000	)
Proceeds from issuance of common stock		146,499			—			—
Purchases of treasury stock		(2,560	)		(7	)		(37,013	)
Dividends paid		(215,937	)		(152,542	)		(152,163	)
Net change in other financing activities		730			749			968
Net cash used in financing activities		(11,268	)		(191,800	)		(278,208	)
Net increase (decrease) in cash and due from banks		12			33			(33	)
Cash and due from banks at beginning of fiscal year		155			167			200
Cash and due from banks at end of fiscal year		167			200			167

34. Subsequent events

Redemption of preferred securities

On June 30, 2014, preferred securities, issued by the MHFG Group’s overseas special purpose companies, were redeemed in full. These special purpose companies are not consolidated in accordance with ASC 810 since the Group is not the primary beneficiary. Thus, the redemption of preferred securities did not reduce Noncontrolling interests in consolidated subsidiaries, but reduced Long-term debt in the Group’s consolidated balance sheets. The following table describes the details of the redeemed preferred securities.

Issuer	Aggregate redemption amount		Reason for the redemption
	(in millions)
Mizuho Capital Investment (USD) 2 Limited		$850		Arrival of optional redemption date
Mizuho Capital Investment (JPY) 5 Limited		Series A ¥139,500		Arrival of optional redemption date

F-115

Signature

The registrant hereby certifies that it meets all of the requirements for filing on Form 20-F and that it has duly caused and authorized the undersigned to sign this annual report on its behalf.

MIZUHO FINANCIAL GROUP, INC.
By:	/s/ Yasuhiro Sato
Name: Yasuhiro Sato
Title:  President & CEO

July 25, 2014

EXHIBIT INDEX

Exhibit Number	Description of Exhibits
1.1	Articles of Incorporation of Mizuho Financial Group, Inc., dated June 24, 2014 (English Translation)
1.2	Regulations of the Board of Directors of Mizuho Financial Group, Inc., as amended on June 24, 2014 (English Translation)
1.3	Share Handling Regulations of Mizuho Financial Group, Inc., dated January 4, 2013 (English Translation)*
2.1	Form of American Depositary Receipt**
2.2	Form of Deposit Agreement among the registrant, The Bank of New York Mellon (formerly The Bank of New York) as Depositary and all owners and holders from time to time of American Depositary Receipts issued thereunder***
8	List of significant subsidiaries of Mizuho Financial Group, Inc.—see “Item 4.C. Information on the Company—Organizational Structure.”
11	Code of Ethics of Mizuho Financial Group, Inc.****
12.1	CEO Certification required by Rule 13a-14(a) (17 CFR 240.13a-14(a)).
12.2	CFO Certification required by Rule 13a-14(a) (17 CFR 240.13a-14(a)).
13.1	Certification required by Rule 13a-14(b) (17 CFR 240.13a-14(b)) and Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. 1350).
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema
101.CAL	XBRL Taxonomy Extension Calculation Linkbase
101.DEF	XBRL Taxonomy Extension Definition Linkbase
101.LAB	XBRL Taxonomy Extension Label Linkbase
101.PRE	XBRL Taxonomy Extension Presentation Linkbase

* Incorporated by reference to our annual report on Form 20-F (No. 001-33098) filed on July 23, 2013.

** Incorporated by reference to our annual report on Form 20-F (No. 001-33098) filed on August 19, 2009.

*** Incorporated by reference to our registration statement on Form 20-F (No. 001-33098) filed on October 19, 2006.

**** Incorporated by reference to our annual report on Form 20-F (No. 001-33098) filed on August 10, 2007.

EX-1.1

Exhibit 1.1

ARTICLES OF INCORPORATION

OF

MIZUHO FINANCIAL GROUP, INC.

June 24, 2014

[Translation]

ARTICLES OF INCORPORATION

OF

MIZUHO FINANCIAL GROUP, INC.

CHAPTER I

GENERAL PROVISIONS

Article 1.    (Trade Name)

The company shall be called “Kabushiki Kaisha Mizuho Financial Group” and in English, “Mizuho Financial Group, Inc.”(hereinafter referred to as the “Company”).

Article 2.    (Purpose)

The purpose of the Company shall be to engage in the following businesses as a bank holding company:

(1) Operation and management of bank holding companies, banks, long-term credit banks, specialized securities companies and other companies which may be owned by the Company as its subsidiaries under the Banking Act; and

(2) Any other business incidental to the foregoing.

Article 3.    (Head Office)

The Company shall have its head office in Chiyoda-ku, Tokyo.

Article 4.    (Organizations)

The Company shall establish the following organizations, in addition to the general meeting of shareholders and Directors.

(1) Board of Directors;

(2) Nominating Committee, Audit Committee, and Compensation Committee; and

(3) Accounting Auditors.

Article 5.    (Method of Public Notices)

Public notices by the Company shall be given by electronic public notices; provided, however, that in the case where an electronic public notice is impracticable due to an accident or any other unavoidable reason, the same public notice of the Company may be given in the Nikkei.

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CHAPTER II

SHARES

Article 6.    (Total Number of Authorized Shares)

The total number of shares which the Company is authorized to issue shall be 52,214,752,000 shares, and each total number of the classes of shares which the Company is authorized to issue shall be as set forth below; provided, however, that the total number of the classes of shares which the Company is authorized to issue in respect of the First to Fourth Series of Class XIV preferred stock shall not exceed nine hundred million (900,000,000) in total, the total number of the classes of shares which the Company is authorized to issue in respect of the First to Fourth Series of Class XV preferred stock shall not exceed nine hundred million (900,000,000) in total, and the total number of the classes of shares which the Company is authorized to issue in respect of the First to Fourth Series of Class XVI preferred stock shall not exceed fifteen hundred million (1,500,000,000) in total:

Common stock:	48,000,000,000 shares
Class XI preferred stock:	914,752,000 shares
First Series of Class XIV preferred stock:	900,000,000 shares
Second Series of Class XIV preferred stock:	900,000,000 shares
Third Series of Class XIV preferred stock:	900,000,000 shares
Fourth Series of Class XIV preferred stock:	900,000,000 shares
First Series of Class XV preferred stock:	900,000,000 shares
Second Series of Class XV preferred stock:	900,000,000 shares
Third Series of Class XV preferred stock:	900,000,000 shares
Fourth Series of Class XV preferred stock:	900,000,000 shares
First Series of Class XVI preferred stock:	1,500,000,000 shares
Second Series of Class XVI preferred stock:	1,500,000,000 shares
Third Series of Class XVI preferred stock:	1,500,000,000 shares
Fourth Series of Class XVI preferred stock:	1,500,000,000 shares

Article 7.    (Number of Shares Constituting One (1) Unit of Shares)

The number of shares constituting one (1) unit of shares of the Company shall be one hundred (100) with respect to the common stock and each class of preferred stock, respectively.

Article 8.    (Rights Pertaining to Shares Constituting Less Than One (1) Unit)

A shareholder of the Company may not exercise any rights, except for the rights set forth below (excluding the rights which may not be exercised as the rights pertaining to shares constituting one (1) unit of shares), with respect to shares constituting less than one (1) unit held by such shareholder:

(1) The rights provided for in each item of Article 189, Paragraph 2 of the Companies Act of Japan (the “Act”);

(2) The right to make a request pursuant to Article 166, Paragraph 1 of the Act;

(3) The right to receive an allotment of offered shares and offered stock acquisition rights in proportion to the number of shares held by such shareholder; and

(4) The right to make a request provided for in the following Article.

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Article 9.    (Additional Purchase of Shares Constituting Less Than One (1) Unit)

A shareholder of the Company may request the Company to sell to such shareholder a number of shares which will, when combined with the shares constituting less than one (1) unit already held by such shareholder, constitute one (1) unit of shares pursuant to the Share Handling Regulations.

Article 10.    (Record Date)

1. The Company shall deem shareholders having voting rights appearing in writing or electronically in the register of shareholders as of the end of March 31 of each year as the shareholders who are entitled to exercise their rights at the ordinary general meeting of shareholders for the relevant business year.

2. The provisions of the preceding paragraph shall apply mutatis mutandis to the record date for voting rights at the general meetings of holders of classes of stock, where there is a matter to be resolved at an ordinary general meeting of shareholders that requires, in addition to such resolution, a resolution by the relevant general meeting of holders of class of stock.

3. In addition to the preceding two paragraphs, the Company may set an extraordinary record date, when necessary, by a determination by Executive Officer(s) under the authority delegated by the Board of Directors and upon giving a prior public notice thereof.

Article 11.    (Shareholder Register Manager, Etc.)

1. The Company shall appoint a shareholder register manager.

2. The shareholder register manager and its handling office shall be determined by a determination by Executive Officer(s) under the authority delegated by the Board of Directors, and a public notice shall be given with respect thereto.

3. The preparation and keeping of, and other operations relating to, the register of shareholders and the register of stock acquisition rights of the Company shall be entrusted to the shareholder register manager and shall not be handled by the Company.

Article 12.    (Share Handling Regulations)

An entry, whether written or electronic, in the register of shareholders, a repurchase by the Company and an additional purchase by a shareholder of shares constituting less than one (1) unit, and other operations relating to shares and handling fees therefor and the method of request or notice by shareholders with respect to general meetings of shareholders shall be governed by the Share Handling Regulations prescribed by Executive Officer(s) under the authority delegated by the Board of Directors, in addition to laws and regulations and these Articles of Incorporation.

CHAPTER III

PREFERRED STOCK

Article 13.    (Preferred Stock Dividends)

1. In respect of dividends from its surplus provided for in Article 48 (except for interim dividends provided for in the same Article), the Company shall distribute dividends from its surplus by cash on preferred stock (hereinafter referred to as the “Preferred Stock Dividends”) in such amount as provided for below to shareholders of preferred stock (hereinafter referred to as the “Shareholders of Preferred Stock”) or registered stock pledgees in respect of preferred stock (hereinafter referred to as the “Registered Preferred Stock Pledgees”) in priority to holders of common stock (hereinafter referred to as the “Shareholders of

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Common Stock”), registered stock pledgees in respect of common stock (hereinafter referred to as the “Registered Common Stock Pledgees”); provided, however, that in the case where all or a part of the Preferred Stock Interim Dividends provided for in Article 14 have been paid in the relevant business year, the amount so paid shall be reduced accordingly:

Class XI preferred stock:	Amount decided by the resolution of the Board of Directors on the issuance of such stock, which amount shall not exceed 50 yen per share per year
First to Fourth Series of Class XIV preferred stock:	Amount decided by the resolution of the Board of Directors or the determination by Executive Officer(s) under the authority delegated by the Board of Directors on the issuance of such stock, which amount shall not exceed 100 yen per share per year
First to Fourth Series of Class XV preferred stock:	Amount decided by the resolution of the Board of Directors or the determination by Executive Officer(s) under the authority delegated by the Board of Directors on the issuance of such stock, which amount shall not exceed 100 yen per share per year
First to Fourth Series of Class XVI preferred stock:	Amount decided by the resolution of the Board of Directors or the determination by Executive Officer(s) under the authority delegated by the Board of Directors on the issuance of such stock, which amount shall not exceed 100 yen per share per year

2. In a given business year, if all or a part of the Preferred Stock Dividends have not been paid to the Shareholders of Preferred Stock or Registered Preferred Stock Pledgees, the unpaid amount shall not be accumulated for the subsequent business years.

3. The Company shall not distribute dividends from its surplus to any Shareholder of Preferred Stock or Registered Preferred Stock Pledgee, any amount in excess of the amount of the relevant Preferred Stock Dividends.

Article 14.    (Preferred Stock Interim Dividends)

In respect of interim dividends provided for in Article 48, the Company shall distribute dividends from its surplus by cash in one half (1/2) of the amount of the Preferred Stock Dividends provided for in the main clause of Paragraph 1 of the preceding Article (referred to as the “Preferred Stock Interim Dividends” in these Articles of Incorporation) to the Shareholders of Preferred Stock or Registered Preferred Stock Pledgees in priority to the Shareholders of Common Stock or Registered Common Stock Pledgees.

Article 15.    (Distribution of Residual Assets)

1. In respect of distribution of residual assets, the Company shall pay to the Shareholders of Preferred Stock or Registered Preferred Stock Pledgees in priority to the Shareholders of Common Stock or Registered Common Stock Pledgees in such amount as provided for below:

Classes XI through the Fourth Series of Class XVI preferred stock: 1,000 yen per share

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2. No distribution of residual assets other than those provided for in the preceding paragraph shall be made to any Shareholder of Preferred Stock or Registered Preferred Stock Pledgee.

Article 16.    (Voting Rights)

The Shareholders of Preferred Stock shall not have voting rights at a general meeting of shareholders; provided, however, that the Shareholders of Preferred Stock may have voting rights from the date of an ordinary general meeting of shareholders, in the case where a proposal on the Preferred Stock Dividends is not submitted to such ordinary general meeting of shareholders (except in the case where a resolution of the Board of Directors to pay the Preferred Stock Dividends is made pursuant to the provisions of Article 47 between the last day of the business year and the date of such ordinary general meeting of shareholders), or immediately after the closing of an ordinary general meeting of shareholders, in the case where a proposal on the Preferred Stock Dividends is rejected at such ordinary general meeting of shareholders, until such time as a resolution of the Board of Directors to pay the Preferred Stock Dividends is made pursuant to the provisions of Article 47 or a resolution of an ordinary general meeting of shareholders is passed to grant the Preferred Stock Dividends.

Article 17.    (Consolidation or Split of Preferred Stock, Free Allotment of Stock and Rights to Receive Allotment of Offered Stock, Etc.)

1. The Company shall not consolidate or split any preferred stock, and shall not make any free allotment of any stock for the Shareholders of Preferred Stock.

2. The Company shall not grant the Shareholders of Preferred Stock any rights to receive allotment of offered stock, offered stock acquisition rights, bonds with stock acquisition rights, or offered stock acquisition rights and bonds, either of which are capable of being transferred separately from the others and shall not make any free allotment of any stock acquisition rights for the Shareholder of Preferred Stock.

Article 18.    (Acquisition of Preferred Stock)

1. In respect of the First Series of Class XV through the Fourth Series of Class XVI preferred stock, the Company may acquire each such class of preferred stock, in whole or in part, on the date separately determined by a resolution of the Board of Directors or a determination by Executive Officer(s) under the authority delegated by the Board of Directors, after such time and at such acquisition price as respectively determined by a resolution of the Board of Directors or a determination by Executive Officer(s) under the authority delegated by the Board of Directors relating to the issuance of the relevant preferred stock.

2. In the case of a partial acquisition pursuant to the preceding paragraph, such redemption shall be made by way of lot or pro rata allocation.

Article 19.    (Request for Acquisition of Preferred Stock)

1. Any holder of Class XI preferred stock may request to the Company to acquire the relevant preferred stock held by such Shareholder of Preferred Stock during the period in which such Shareholder of Preferred Stock is entitled to request such acquisition as determined by a resolution of the Board of Directors relating to the issuance of the relevant preferred stock. The Company shall deliver its own common stock to such Shareholder of Preferred Stock, in exchange for the Company’s acquisition of the relevant preferred stock. The terms of acquisition, including the number of the common stock to be delivered per one (1) share of the relevant preferred stock upon such request for acquisition, shall be determined by the relevant resolution of the Board of Directors.

2. Any holder of the First to Fourth Series of Class XIV and the First to Fourth Series of Class XV preferred stock may request to the Company to acquire the relevant preferred stock held by such Shareholder of Preferred Stock during the period in which such Shareholder of Preferred Stock is entitled to request such

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acquisition as determined by a resolution of the Board of Directors or a determination by Executive Officer(s) under the authority delegated by the Board of Directors relating to the issuance of the relevant preferred stock (hereinafter, together with the period provided for in the preceding paragraph, referred to as the “Period for Acquisition Request”). The Company shall deliver its own common stock to such Shareholder of Preferred Stock, in exchange for the Company’s acquisition of the relevant preferred stock. The terms of acquisition, including the number of the common stock to be delivered per one (1) share of the relevant preferred stock upon such request for acquisition, shall be determined by the relevant resolution of the Board of Directors or the relevant determination by Executive Officer(s) under the authority delegated by the Board of Directors.

Article 20.    (Mandatory Acquisition of Preferred Stock)

1. The Company may acquire any of Classes XI, the First to Fourth Series of Class XIV and the First to Fourth Series of Class XV preferred stock, in respect of which a request for acquisition has not been made during the Period for Acquisition Request, on the day immediately following the last day of such period (hereinafter referred to as the “Mandatory Acquisition Date”) and instead, the Company shall deliver its own common stock to holders of the relevant preferred stock. In this case, the number of shares of the common stock to be delivered in exchange for the acquisition of one (1) share of the relevant preferred stock shall be obtained by dividing the amount equivalent to the subscription money per one (1) share of the relevant preferred stock by the current market price of a share of the common stock of the Company (with respect to the Eleventh Series of Class XI Preferred Stock, 1,000 yen; the same shall apply hereinafter); provided, however, that such current market price of a share of the common stock shall be the daily average price of closing prices (including the closing bid or offered price) of the common stock of the Company (in regular trading) as reported by the Tokyo Stock Exchange for the 30 consecutive trading days (excluding any trading day or days on which no closing prices or closing bids or offered prices are reported) commencing on the 45^th trading day prior to the Mandatory Acquisition Date, and such calculation shall be made to units of 0.01 yen, and by rounding up to the nearest 0.1 yen when equal to or more than 0.05 yen and disregarding amounts less than 0.05 yen.

2. In respect of Class XI preferred stock, the number of common stock referred to in the preceding paragraph shall not exceed the number of shares obtained by dividing the amount equivalent to the subscription money per one (1) share of the relevant preferred stock by the minimum acquisition price determined by a resolution of the Board of Directors relating to the issuance of the relevant preferred stock. In respect of the First to Fourth Series of Class XIV and the First to Fourth Series of Class XV preferred stock, the number of common stock referred to in the preceding paragraph shall not exceed the number of shares obtained by dividing the amount equivalent to the subscription money per one (1) share of each such class of preferred stock by the minimum acquisition price determined by a resolution of the Board of Directors or a determination by Executive Officer(s) under the authority delegated by the Board of Directors relating to the issuance of the relevant preferred stock.

3. In respect of the First and Second Series of Class XIV, the First and Second Series of Class XV and the First and Second Series of Class XVI preferred stock, upon the occurrence of an event determined by a resolution of the Board of Directors or a determination by Executive Officer(s) under the authority delegated by the Board of Directors relating to the issuance of the relevant preferred stock as an event where a write-off of the relevant preferred stock or a conversion of the relevant preferred stock into common stock, or financial support or other similar measures taken by a public sector, without which the Company would become non-viable, is determined to be necessary, the Company shall mandatorily acquire the relevant preferred stock, in whole, free of consideration, on a date which falls after the occurrence of such event as determined by the resolution of the Board of Directors or the determination by Executive Officer(s) under the authority delegated by the Board of Directors relating to the issuance of the relevant preferred stock and which date shall be separately determined by a resolution of the Board of Directors or a determination by Executive Officer(s) under the authority delegated by the Board of Directors after the issuance of the relevant preferred stock, or a date which falls after the occurrence of the relevant certain event and which date shall be

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determined by the resolution of the Board of Directors or the determination by Executive Officer(s) under the authority delegated by the Board of Directors relating to the issuance of the relevant preferred stock, giving due consideration to the capital adequacy requirements applicable to the Company and other factors.

4. In respect of the Third and Fourth Series of Class XIV, the Third and Fourth Series of Class XV and the Third and Fourth Series of Class XVI preferred stock, upon the occurrence of an event determined by a resolution of the Board of Directors or a determination by Executive Officer(s) under the authority delegated by the Board of Directors relating to the issuance of the relevant preferred stock as an event where a write-off of the relevant preferred stock or a conversion of the relevant preferred stock into common stock, or financial support or other similar measures taken by a public sector, without which the Company would become non-viable, is determined to be necessary, the Company shall mandatorily acquire the relevant preferred stock, in whole, on a date which falls after the occurrence of such event as determined by the resolution of the Board of Directors or the determination by Executive Officer(s) under the authority delegated by the Board of Directors relating to the issuance of the relevant preferred stock and which date shall be separately determined by a resolution of the Board of Directors or a determination by Executive Officer(s) under the authority delegated by the Board of Directors after the issuance of the relevant preferred stock, or a date which falls after the occurrence of the relevant certain event and which date shall be determined by the resolution of the Board of Directors or the determination by Executive Officer(s) under the authority delegated by the Board of Directors relating to the issuance of the relevant preferred stock, giving due consideration to the capital adequacy requirements applicable to the Company and other factors, and instead, the Company shall deliver its own common stock to holders of the relevant preferred stock. In this case, the terms of acquisition, including the number of shares of the common stock to be delivered in exchange for the acquisition of one (1) share of the relevant preferred stock, shall be determined by the relevant resolution of the Board of Directors or the relevant determination by Executive Officer(s) under the authority delegated by the Board of Directors relating to the issuance of the relevant preferred stock, giving due consideration to the market price of common stock, the subscription price of the relevant preferred stock and other factors.

5. In the calculation of the number of common stock provided for in Paragraphs 1, 2 and 4, any number less than one (1) share shall be treated pursuant to the provisions provided for in Article 234 of the Act.

Article 21.    (Order of Priority)

All classes of preferred stock authorized to be issued by the Company shall rank pari passu with each other in respect of the payment of the Preferred Stock Dividends and the Preferred Stock Interim Dividends, and the distribution of residual assets.

CHAPTER IV

GENERAL MEETINGS OF SHAREHOLDERS

Article 22.    (Convocation of General Meetings of Shareholders)

An ordinary general meeting of shareholders of the Company shall be convened no later than 3 months from the last day of each business year and an extraordinary general meeting of shareholders shall be convened whenever necessary.

Article 23.    (Person Authorized to Convene General Meetings of Shareholders and the Chairman of the Meeting)

1. The Director concurrently serving as President and Executive Officer shall convene and chair the general meeting of shareholders.

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2. In the case where the Director concurrently serving as President and Executive Officer is unable to so act, one of the other Director(s) in the order previously determined by the Board of Directors shall take such person’s place.

Article 24.    (Disclosure of Reference Materials, Etc. for General Meetings of Shareholders via Internet)

The Company may, at the time of convocation of a general meeting of shareholders, deem to have provided shareholders with information with respect to matters which shall be stated or indicated in the reference materials for a general meeting of shareholders, business reports, non-consolidated financial documents and consolidated financial documents by disclosing those by way of using the Internet as provided for in the ordinances of the Ministry of Justice.

Article 25.    (Method of Adopting Resolutions)

1. Unless otherwise provided for by laws or regulations or these Articles of Incorporation, resolutions of a general meeting of shareholders shall be adopted by an affirmative vote of a majority of the voting rights held by the shareholders present at the meeting who are entitled to exercise their voting rights.

2. Resolutions of a meeting of shareholders governed by Article 309, Paragraph 2 of the Act shall be adopted by an affirmative vote of not less than two-thirds (2/3) of the voting rights held by the shareholders present at the relevant meeting who shall hold in aggregate not less than one-third (1/3) of the voting rights of the shareholders entitled to exercise their voting rights.

Article 26.    (Voting by Proxy)

1. Shareholders may exercise their voting rights at the relevant general meeting of shareholders by a proxy who shall also be a shareholder of the Company holding voting rights at such meeting.

2. The shareholder or his/her proxy shall submit to the Company a document evidencing the authority of such proxy to act as such at each general meeting of shareholders.

Article 27.    (Minutes of General Meetings)

The minutes of general meetings of shareholders shall be prepared in writing or by electromagnetic file as provided for in laws and regulations.

Article 28.    (General Meetings of Holders of Classes of Stock)

1. Unless otherwise provided for by laws or regulations or these Articles of Incorporation, resolutions of a general meeting of holders of classes of stock shall be adopted by an affirmative vote of a majority of the voting rights held by the holders present at the meeting who are entitled to exercise their voting rights.

2. Resolutions provided for in Article 324, Paragraph 2 of the Act shall be adopted by an affirmative vote of not less than two-thirds (2/3) of the voting rights held by the holders present at the relevant meeting who shall hold in aggregate not less than one-third (1/3) of the voting rights of the holders entitled to exercise their voting rights.

3. The provisions of Articles 23, 24 and 26 and the preceding Article shall apply mutatis mutandis to the general meetings of holders of classes of stock.

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CHAPTER V

DIRECTORS AND BOARD OF DIRECTORS

Article 29.    (Number)

The Company shall have not more than fifteen (15) Directors.

Article 30.    (Method of Appointment)

1. The Director(s) shall be appointed at a general meeting of shareholders.

2. A resolution for the appointment of Director(s) shall be adopted by an affirmative vote of a majority of the voting rights held by the shareholders present at the relevant meeting who shall hold in aggregate not less than one-third (1/3) of the voting rights of the shareholders entitled to exercise their voting rights.

3. Cumulative voting shall not be used for the appointment of Director(s).

Article 31.    (Method of Dismissal)

A resolution for the dismissal of Director(s) shall be adopted by an affirmative vote of a majority of the voting rights held by the shareholders present at the relevant general meeting of shareholders who shall hold in aggregate not less than one-third (1/3) of the voting rights of the shareholders entitled to exercise their voting rights.

Article 32.    (Term of Office)

The term of office of Director(s) shall expire at the closing of the ordinary general meeting of shareholders concerning the last business year ending within one (1) year after their appointment.

Article 33.    (Chairman and Deputy Chairman)

The Board of Directors may, by its resolutions, appoint Chairman and Deputy Chairman.

Article 34.    (Person Authorized to Convene Meetings of the Board of Directors and Chairman of the Meeting)

1. Unless otherwise provided for by laws or regulations, a Director previously appointed by the Board of Directors shall convene and chair the meeting of the Board of Directors.

2. In the case where the Director appointed pursuant to the preceding paragraph is unable to so act, one of the other Director(s) in the order previously determined by the Board of Directors shall take such person’s place.

Article 35.    (Notice to Convene Meetings of the Board of Directors)

1. Notice to convene a meeting of the Board of Directors shall be given to each Director not less than three (3) days prior to the date set for such meeting; provided, however, that in case of emergency, such period may be shortened.

2. A meeting of the Board of Directors may be held without taking the procedures of convocation with the consent of all the Directors.

Article 36.    (Method of Adopting Resolutions of the Board of Directors)

1. Resolutions of a meeting of the Board of Directors shall be adopted by an affirmative vote of a majority of the Directors present at the relevant meeting who shall constitute a majority in number of all the Directors entitled to take part in the vote.

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2. Notwithstanding the provisions of the preceding paragraph, in cases where Director(s) submit a proposal with respect to a matter which is the purpose of the resolution of the Board of Directors, if all Directors who are entitled to vote agree in writing or by means of electromagnetic file to such proposal, it shall be deemed that the resolution to approve such proposal at a meeting of the Board of Directors has been made.

Article 37.    (Minutes of Meetings of the Board of Directors)

The minutes of the meetings of the Board of Directors shall be prepared in writing or by electromagnetic file as provided for in laws and regulations, and the Director(s) present thereat shall affix their names and seals thereon, or electronic signatures thereto.

Article 38.    (Regulations of the Board of Directors)

Matters concerning the Board of Directors shall be governed by the Regulations of the Board of Directors prescribed by the Board of Directors, in addition to laws and regulations and these Articles of Incorporation.

Article 39.    (Liability Limitation Agreements with Outside Director(s))

Pursuant to the provisions provided for in Article 427, Paragraph 1 of the Act, the Company may enter into liability limitation agreements with any Outside Director which limit the liability provided for in Article 423, Paragraph 1 of the Act to the higher of either (i) the pre-determined amount not less than twenty million (20,000,000) yen or (ii) the amount prescribed in laws and regulations, provided that such Outside Director is bona fide and without gross negligence in performing his/her duty.

CHAPTER VI

NOMINATING COMMITTEE, AUDIT COMMITTEE, AND COMPENSATION COMMITTEE

Article 40.    (Method of Designation)

1. Committee members who shall constitute the Nominating Committee, the Audit Committee, and the Compensation Committee shall be designated by the Board of Directors.

2. The chairman of each committee shall be designated by the Board of Directors.

Article 41.    (Regulations of Each Committee)

Matters concerning each committee shall be governed by the Regulations of each committee prescribed by the Board of Directors, in addition to laws and regulations and these Articles of Incorporation.

CHAPTER VII

EXECUTIVE OFFICERS

Article 42.    (Number)

The Company shall have no less than one (1) Executive Officer.

Article 43.    (Method of Appointment)

Executive Officers shall be appointed by the Board of Directors.

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Article 44.    (Term of Office)

The term of office of Executive Officers shall expire at the closing of the first meeting of the Board of Directors convened after the closing of the ordinary general meeting of shareholders concerning the last business year ending within one (1) year after their appointment.

Article 45.    (Representative Executive Officer(s) and Executive Officer(s) with Tittles)

1. The Representative Executive Officer(s) shall be designated by the Board of Directors.

2. The Board of Directors shall, by its resolutions, appoint the President and Executive Officer.

3. The Board of Directors may, by its resolutions, appoint Deputy President and Executive Officer(s), Senior Managing Executive Officer(s), and Managing Executive Officer(s).

CHAPTER VIII

ACCOUNTING

Article 46.    (Business Year)

The business year of the Company shall be the one-year period from April 1 of each year through March 31 of the following year.

Article 47.    (Organizations that Decide Dividends from Surplus, Etc.)

The Company shall decide distribution of dividends from surplus and other matters provided for in each item of Article 459, Paragraph 1 of the Act, not by a resolution of a general meeting of shareholders, but by a resolution of the Board of Directors, unless otherwise provided for in laws or regulations.

Article 48.    (Record Date for Distribution of Dividends from Surplus)

The record dates for distribution of dividends from surplus of the Company shall be March 31 and September 30 of each year (in these Articles of Incorporation, distribution of dividends from surplus made with the record date of September 30 of each year shall be referred to as “interim dividends”).

Article 49.    (Prescription for Payment of Dividends)

In the case where the dividends from its surplus are distributed by cash, the Company shall be released from the obligation to pay such dividends from the surplus which have not been received after the lapse of five (5) years from the date of commencement of payment thereof.

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EX-1.2

Exhibit 1.2

[Translation]

Effective from January 8, 2003

As amended on June 24, 2014

REGULATIONS OF THE BOARD OF DIRECTORS

CHAPTER I

PURPOSE

Article 1.    (Purpose)

These Regulations provide for matters concerning the Board of Directors pursuant to laws and regulations, the Articles of Incorporation, and the Corporate Governance Guidelines.

CHAPTER II

ORGANIZATION

Article 2.    (Function)

The Board of Directors shall conduct the following matters.

(1) Determine the matters provided for in Article 10 of these Regulations

(2) Supervise the execution of duties by Directors, Executive Officers, as defined in the Companies Act, and Executive Officers, as provided under the Internal regulations

Article 3.    (Constitution)

The Board of Directors shall consist of all the Directors.

CHAPTER III

HOLDING, CONVOCATION AND CHAIRMAN OF MEETINGS

Article 4.    (Holding of Meetings)

1. Meetings of the Board of Directors shall be held ordinarily and extraordinarily.

2. Ordinary meetings of the Board of Directors shall be held at least once every three (3) months.

3. Extraordinary meetings of the Board of Directors shall be held whenever necessary.

4. Meetings of the Board of Directors shall be held at the head office of the Company; provided, however, that when necessary, a meeting of the Board of Directors may be held at another location or at multiple locations by a method such as teleconference.

Article 5.    (Person Authorized to Convene Meetings and Chairman of Meetings)

1. Unless otherwise provided for in laws and regulations, each meeting of the Board of Directors will be convened and chaired by a Director who does not concurrently serve as an Executive Officer, as

1

defined in the Companies Act, Executive Officer, as defined in our internal regulations, or Employee of the Company or a subsidiary of the Company (“Non-Executive Director”) as previously appointed by the Board of Directors.

2. In the case where the Director appointed pursuant to the preceding paragraph is unable to so act, one of the other Non-Executive Director(s) in the order previously determined by the Board of Directors shall take such person’s place.

3. The Board of Directors may, by its resolution, appoint a Non-Executive Director as a deputy chairman to assist the chairman.

4. Any Director who is not a Director provided for under the provisions of paragraph 1 or paragraph 2 or any Executive Officer, as defined in the Companies Act, may demand the convocation of a meeting of the Board of Directors in accordance with the provisions of laws and regulations.

5. Any person appointed by the Nominating Committee, the Compensation Committee, or the Audit Committee from among their members may convene a meeting of the Board of Directors in accordance with the provisions of laws and regulations.

Article 6.    (Convocation and Reduction of Convocation Period)

Notices to convene a meeting of the Board of Directors shall be issued to each Director not less than three (3) days prior to the date of that meeting; provided, however, that in case of emergency, such period may be shortened.

Article 7.    (Omission of Convocation Notice)

A meeting of the Board of Directors may be held without taking the procedures for convocation provided for in the preceding Article with the consent of all of the Directors.

CHAPTER IV

QUORUM AND METHOD OF ADOPTING RESOLUTIONS

Article 8.    (Quorum and Method of Adopting Resolutions)

1. Resolutions of meetings of the Board of Directors shall be adopted by an affirmative vote of a majority of the Directors present at the relevant meeting who shall constitute a majority in number of all the Directors entitled to take part in the vote.

2. Notwithstanding the provisions of the preceding paragraph, in the case where Director(s) submit a proposal with respect to a matter which is the purpose of the resolution of the Board of Directors, if all Directors who are entitled to vote agree in writing or by means of electromagnetic file to such proposal, it shall be deemed that the resolution to approve such proposal at a meeting of the Board of Directors has been made.

Article 9.    (Person Who Has Special Interests)

Any person who has special interests with respect to a matter to be resolved at a meeting of the Board of Directors may not participate in voting for resolution thereof.

2

CHAPTER V

MATTERS TO BE RESOLVED

Article 10.    (Matters to be Resolved)

1. The following matters shall be resolved at a meeting of the Board of Directors.

(1) Important matters concerning the management policy of the Company and its subsidiaries and other entities administered by the Company (collectively, the “Mizuho Group”)

(i) Basic policy concerning the management of the Mizuho Group

(ii) Basic matters concerning annual business plans and mid- and long-term business plans of the Mizuho Group;

(iii) Basic matters concerning the capital policy of the Mizuho Group;

(iv) “System to ensure the properness of operations” of the Mizuho Group (the “Internal Control System”);

(v) Matters concerning changes of particularly important companies of the Mizuho Group; and

(vi) Basic matters concerning risk governance, risk management, compliance, and internal auditing of the Mizuho Group.

(2) Important matters concerning the Company

(i) Determination of convocation of general meetings of shareholders and agenda thereof;

(ii) Determination of person authorized to convene general meetings of shareholders and the chairman thereof (including the order in which substitutes are to be determined);

(iii) Appointment and removal of Directors with Titles;

(iv) Appointment and dismissal of Executive Officers, as defined in the Companies Act;

(v) Appointment and removal of Representative Executive Officers, as defined in the Companies Act, and Executive Officers, as defined in the Companies Act, with Titles;

(vi) Matters concerning the interrelationship between Executive Officers, as defined in the Companies Act, including the division of duties between Executive Officers, as defined in the Companies Act, and hierarchy of commands of Executive Officers, as defined in the Companies Act;

(vii) Selection and appointment, dismissal and removal, and division of duties of Executive Officers, as defined in our internal regulations, with Titles;

(viii) Approval of competitive transactions and conflicting interest transactions by Directors and Executive Officers, as defined in the Companies Act;

(ix) Determination of person authorized to convene meetings of the Board of Directors and the chairman thereof (including the order in which substitutes are to be determined);

(x) Determination of Director to receive demands for convocation of meetings of the Board of Directors from Executive Officers, as defined in the Companies Act;

(xi) Appointment and removal of members who constitute the Nominating Committee, the Compensation Committee, and the Audit Committee;

(xii) Appointment and removal of the Chairman of each of the Nominating Committee, the Compensation Committee, and the Audit Committee;

3

(xiii) Determination of a person to represent the Company in any action between the Company and a member of the Audit Committee;

(xiv) Matters concerning business transfers, etc., mergers, absorption-type company splits, incorporation-type company splits, share exchanges, and share transfers of the Company which require the approval of a general meeting of shareholders;

(xv) Approval of financial statements, business reports and supplementary schedules, temporary financial statements, and consolidated financial statements;

(xvi) Distribution of surplus and other matters the Board of Directors is authorized to determine pursuant to the provisions of the Articles of Incorporation;

(xvii) Determination of approval of transfers of share options with restriction on transfers; and

(xviii) Establishment of, revisions to, and abolition of particularly important internal regulations.

(3) Important matters concerning the management of subsidiaries, etc.

(i) Matters concerning transfer of particularly important subsidiaries and other entities administered by the Company

(ii) Basic matters concerning risk governance, risk management, compliance, and internal auditing of Major Group Companies (meaning “Major Group Companies” as provided in the Group Management Administration Regulations)

(iii) Selection and appointment, dismissal and removal, and division of duties of Executive Officers, as defined in our internal regulations, with Titles of Management Classification A Companies (companies with respect to which “Management Classification A” under the Group Business Management Regulations have been established)

(4) Other matters provided for in laws and regulations or the Articles of Incorporation, or resolved at a general meeting of shareholders

(5) Any other matter that a Director believes should be proposed at a meeting of the Board of Directors

2. The Supplementary Provisions of the Regulations of the Board of Directors shall apply as the operating standards with respect to the matters to be resolved in the preceding paragraph.

CHAPTER VI

REPORTS, ETC. TO THE BOARD OF DIRECTORS

Article 11.    (Business Performance Reports)

1. Executive Officer(s), as defined in the Companies Act, shall report to the Board of Directors at least once every three (3) months on the status of the performance of his or her duties.

2. Each person appointed by the Nominating Committee, the Compensation Committee, or the Audit Committee from among their members shall report without delay to the Board of Directors on the status of the performance of the duties of that committee.

3. The Supplementary Provisions of the Regulations of the Board of Directors shall apply as the operating standards with respect to the matters to be reported to the Board of Directors.

4

Article 12.    (Other Reports, Etc.)

1. The Board of Directors may, when necessary, have Executive Officers, as defined in the Companies Act, Executive Officers, as defined in our internal regulations, and Employees of the Company, Directors, Executive Officers, as defined in our internal regulations, and Employees of subsidiaries, etc., of the Company, and outside experts, etc., attend meetings of the Board of Directors and seek their reports and opinions.

2. If an Executive Officer, as defined in the Companies Act, Executive Officer, as defined in our internal regulations, or Employee of the Company or a Director, Executive Officer, as defined in our internal regulations, or Employee of subsidiaries, etc. of the Company receives a request from the Board of Directors, that person shall attend a meeting of the Board of Directors and explain matters requested by the Board of Directors.

CHAPTER VII

EXECUTIVE OFFICERS, AS DEFINED IN THE COMPANIES ACT, WITH TITLES AND

EXECUTIVE OFFICERS, AS DEFINED IN OUR INTERNAL REGULATIONS, WITH

TITLES

Article 13.    (Executive Officers, as defined in the Companies Act, with Titles)

1. The Board of Directors shall, by its resolution, appoint a President & Executive Officer from among the Executive Officers, as defined in the Companies Act.

2. The Board of Directors may, by its resolution, appoint one or more Deputy President & Executive Officer, Senior Managing Executive Officer, and Managing Executive Officer from among the Executive Officers, as defined in the Companies Act.

Article 14.    (Executive Officers, as defined in our internal regulations, with Titles)

The Board of Directors may, by its resolution, appoint one or more Deputy President & Executive Officer, Senior Managing Executive Officer, and Managing Executive Officer from among the Executive Officers, as defined in our internal regulations.

CHAPTER VIII

PRESIDENT & EXECUTIVE OFFICER

Article 15.    (Duties of the President & Executive Officer)

The President & Executive Officer shall oversee the business of the Company as the chief executive officer of the Mizuho Group (Group CEO).

Article 16.    (Delegation to the President & Executive Officer)

The determination of businesses other than the matters provided for in Article 10 of these Regulations shall be delegated to the President & Executive Officer.

CHAPTER IX

DIRECTORS WITH TITLES

Article 17.    (Directors with Titles)

The Board of Directors may, by its resolution, appoint a Chairman, Deputy Chairman, and other Directors with Titles from among the Non-Executive Directors.

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CHAPTER X

MINUTES

Article 18.    (Minutes)

The minutes of meetings of the Board of Directors shall be prepared in writing or by electromagnetic file as provided for in laws and regulations, and the Directors present thereat shall affix their names and seals thereon or electronic signatures thereto.

CHAPTER XI

OTHER MATTERS

Article 19.    (Revision and Abolition)

These Regulations and the Supplementary Provisions of the Regulations of the Board of Directors may be revised or abolished by resolution of the Board of Directors.

Article 20.    (Relevant Department)

The relevant department for administering these Regulations is the Corporate Secretariat.

6

EX-12.1

Exhibit 12.1

CERTIFICATIONS PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Yasuhiro Sato, certify that:

1. I have reviewed this annual report on Form 20-F of Mizuho Financial Group, Inc. (the “company”);

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the company as of, and for, the periods presented in this report;

4. The company’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the company and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the company, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the company’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the company’s internal control over financial reporting that occurred during the period covered by the annual report that has materially affected, or is reasonably likely to materially affect, the company’s internal control over financial reporting; and

5. The company’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the company’s auditors and the audit committee of the company’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the company’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the company’s internal control over financial reporting.

Date: July 25, 2014

By:	/s/ Yasuhiro Sato
Name: Yasuhiro Sato
Title: Chief Executive Officer

EX-12.2

Exhibit 12.2

CERTIFICATIONS PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Junichi Shinbo, certify that:

1. I have reviewed this annual report on Form 20-F of Mizuho Financial Group, Inc. (the “company”);

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the company as of, and for, the periods presented in this report;

4. The company’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the company and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the company, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the company’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the company’s internal control over financial reporting that occurred during the period covered by the annual report that has materially affected, or is reasonably likely to materially affect, the company’s internal control over financial reporting; and

5. The company’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the company’s auditors and the audit committee of the company’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the company’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the company’s internal control over financial reporting.

Date: July 25, 2014

By:	/s/ Junichi Shinbo
Name: Junichi Shinbo
Title: Chief Financial Officer

EX-13.1

Exhibit 13.1

CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

The certification set forth below is being submitted in connection with the annual report of Mizuho Financial Group, Inc. on Form 20-F for the year ended March 31, 2014 as filed with the U.S. Securities and Exchange Commission on the date hereof (the “Report”) for the purpose of complying with Rule 13a-14(b) or Rule 15d-14(b) of the United States Securities Exchange Act of 1934 (the “Exchange Act”) and Section 1350 of Chapter 63 of Title 18 of the United States Code.

Yasuhiro Sato, Chief Executive Officer, and Junichi Shinbo, Chief Financial Officer of Mizuho Financial Group, Inc., each certifies that, to the best of his knowledge:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Exchange Act; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Mizuho Financial Group, Inc.

Date: July 25, 2014

By:	/s/ Yasuhiro Sato
Name: Yasuhiro Sato
Title: Chief Executive Officer

By:	/s/ Junichi Shinbo
Name: Junichi Shinbo
Title: Chief Financial Officer

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Foreign activities

12 Months Ended

Mar. 31, 2014

Foreign activities

32. Foreign activities

The following table presents consolidated income statement and total assets information by major geographic area. Foreign activities are defined as business transactions that involve customers residing outside of Japan. However, as the MHFG Group’s operations are highly integrated globally, estimates and assumptions have been made for an allocation among the geographic areas.

	Japan		Americas		Europe		Asia/Oceania excluding Japan, and others		Total
	(in billions of yen)
Fiscal year ended March 31, 2012:
Total revenue (1)		1,965.7		251.3		132.0		178.2		2,527.2
Total expenses (2)		1,561.2		104.0		102.9		96.3		1,864.4
Income before income tax expense		404.5		147.3		29.1		81.9		662.8
Net income		419.2		131.2		28.1		70.5		649.0
Total assets at end of fiscal year		124,443.6		25,368.9		8,868.5		7,680.6		166,361.6
Fiscal year ended March 31, 2013:
Total revenue (1)		2,190.7		383.7		125.8		162.6		2,862.8
Total expenses (2)		1,668.9		140.5		48.4		119.8		1,977.6
Income before income tax expense		521.8		243.2		77.4		42.8		885.2
Net income		524.7		252.3		75.0		29.2		881.2
Total assets at end of fiscal year		126,768.8		31,168.8		10,591.2		10,218.2		178,747.0
Fiscal year ended March 31, 2014:
Total revenue (1)		1,783.9		349.9		152.9		218.9		2,505.6
Total expenses (2)		1,397.3		144.6		96.3		141.1		1,779.3
Income before income tax expense		386.6		205.3		56.6		77.8		726.3
Net income		198.9		189.7		54.0		57.6		500.2
Total assets at end of fiscal year		124,557.7		27,527.8		10,784.5		12,829.3		175,699.3

Notes:

(1) Total revenue is comprised of Interest and dividend income and Noninterest income.

(2) Total expenses are comprised of Interest expense, Provision (credit) for loan losses and Noninterest expenses.

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Combined Funded Status and Amounts Recognized in Accompanying Consolidated Balance Sheets (Parenthetical) (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Aggregated accumulated benefit obligations	¥ 1,319,771	¥ 1,364,786
Description of requirements for lump-sum severance indemnities	Employees with service in excess of one year are qualified to receive lump-sum severance indemnities.

XML

Material Terms and Conditions Conversion of Eleventh Series Class XI Preferred Stock (Parenthetical) (Detail) (Eleventh series class XI preferred stock, JPY ¥)	Mar. 31, 2014
Eleventh series class XI preferred stock
Class of Stock [Line Items]
Conversion price, numerator	¥ 1,000
Conversion price, denominator	¥ 282.90

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Dividends (Tables)

12 Months Ended

Mar. 31, 2014

Schedule of Dividends Payable

Dividends on preferred stock and common stock during the fiscal years ended March 31, 2012, 2013 and 2014 were as follows:

2012	Cash dividends (1)
Class of stock	Per share		In aggregate (2)
	(in yen)		(in millions of yen)
Eleventh series class XI preferred stock		30		12,173
Thirteenth series class XIII preferred stock		45		1,651
Common stock		9		202,684
Total				216,508

2013	Cash dividends
Class of stock	Per share		In aggregate (2)
	(in yen)		(in millions of yen)
Eleventh series class XI preferred stock		20		7,451
Thirteenth series class XIII preferred stock		30		1,101
Common stock		6		144,170
Total				152,722

2014	Cash dividends
Class of stock	Per share		In aggregate (2)
	(in yen)		(in millions of yen)
Eleventh series class XI preferred stock		20		6,717
Thirteenth series class XIII preferred stock (3)		15		550
Common stock		6		144,998
Total				152,265

Notes:

(1) As MHFG commenced distributing an interim dividend from the fiscal year ended March 31, 2012, the amounts for the fiscal year include such interim dividends.

(2) Dividends paid on treasury stock are excluded.

(3) On July 11, 2013, MHFG acquired and cancelled all of the shares of the thirteenth series class XIII preferred stock. Consequently, the amount for the fiscal year does not include interim dividends.

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Derivative Financial Instruments - Additional Information (Detail) (JPY ¥)	Mar. 31, 2014	Mar. 31, 2013
Derivative [Line Items]
Cash collateral provided and not offset against derivative positions and included in Other assets	¥ 466,420,000,000	¥ 742,307,000,000
Cash collateral accepted and not offset against derivative positions and included in Other liabilities	432,820,000,000	503,101,000,000
Aggregate fair value of derivative instruments with credit-risk-related contingent features in liability positions	687,000,000,000	1,022,000,000,000
Collateral provided to counterparties in normal course of business	614,000,000,000	1,029,000,000,000
Amount immediately required to settle if credit-risk-related contingent features were triggered	¥ 73,000,000,000	¥ 0

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Goodwill and intangible assets (Tables)

12 Months Ended

Mar. 31, 2014

Schedule of Goodwill

The changes in Goodwill during the fiscal years ended March 31, 2012, 2013 and 2014 were as follows:

	MHBK			Total
	(in millions of yen)
2012
Balance at beginning of fiscal year		7,610			7,610
Goodwill acquired (1)		3,776			3,776
Impairment losses recognized		5,637			5,637
Foreign exchange translation		(114	)		(114	)
Balance at end of fiscal year		5,635			5,635
Gross amount of goodwill		70,909			70,909
Accumulated impairment losses		65,274			65,274
2013
Balance at beginning of fiscal year		5,635			5,635
Goodwill acquired		—			—
Impairment losses recognized		—			—
Foreign exchange translation		512			512
Balance at end of fiscal year		6,147			6,147
Gross amount of goodwill		71,421			71,421
Accumulated impairment losses		65,274			65,274
2014
Balance at beginning of fiscal year		6,147			6,147
Goodwill acquired (2)		7,719			7,719
Impairment losses recognized		3,792			3,792
Foreign exchange translation		1,475			1,475
Balance at end of fiscal year		11,549			11,549
Gross amount of goodwill		80,615			80,615
Accumulated impairment losses		69,066			69,066

Notes:

(1) Goodwill acquired is entirely related to the acquisition of PT. Mizuho Balimor Finance.

(2) Goodwill acquired is entirely related to the acquisition of Banco Mizuho do Brasil S.A.

Schedule of Intangible Assets by Major Class

The table below presents the gross carrying amount, accumulated amortization and net carrying amount of intangible assets, at March 31, 2013 and 2014.

	2013						2014
	Gross carrying amount		Accumulated amortization		Net carrying amount		Gross carrying amount		Accumulated amortization		Net carrying amount
	(in millions of yen)
Intangible assets subject to amortization:
Customer relationships (Note)		73,949		19,238		54,711		73,949		24,865		49,084
Other		2,363		2,050		313		2,808		2,152		656
Total		76,312		21,288		55,024		76,757		27,017		49,740
Intangible assets not subject to amortization:
Total		9,450		—		9,450		9,207		—		9,207
Total		85,762		21,288		64,474		85,964		27,017		58,947

Note: Customer relationships were acquired by the merger of MHSC and Shinko on May 7, 2009. See Note 1 “Basis of presentation and summary of significant accounting policies” for further information.

Schedule of Expected Amortization Expense

The table below presents the estimated aggregate amortization expenses for intangible assets for the next five years:

	(in millions of yen)
Fiscal year ending March 31:
2015		5,349
2016		5,058
2017		4,780
2018		4,502
2019		4,264

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Quantitative Information About Level Three Fair Value Measurements (Detail) (JPY ¥) In Billions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Available For Sale And Trading Securities | Residential mortgage-backed securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value	¥ 298		¥ 392
Principal valuation technique	Discounted cash flow Price-based		Discounted cash flow Price-based
Available For Sale And Trading Securities | Residential mortgage-backed securities | Discounted Cash Flow Method Or Transaction Price Valuation Technique | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Prepayment rate	1.00%		0.00%
Default rate	0.00%		0.00%
Recovery rate	70.00%		70.00%
Discount margin	0.08%		0.07%
Available For Sale And Trading Securities | Residential mortgage-backed securities | Discounted Cash Flow Method Or Transaction Price Valuation Technique | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Prepayment rate	24.00%		24.00%
Default rate	4.00%		5.00%
Recovery rate	100.00%		100.00%
Discount margin	20.02%		26.16%
Available For Sale And Trading Securities | Commercial mortgage-backed securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value	252		341
Principal valuation technique	Discounted cash flow Price-based		Discounted cash flow Price-based
Available For Sale And Trading Securities | Commercial mortgage-backed securities | Discounted Cash Flow Method Or Transaction Price Valuation Technique | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount margin	0.17%		0.09%
Available For Sale And Trading Securities | Commercial mortgage-backed securities | Discounted Cash Flow Method Or Transaction Price Valuation Technique | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount margin	34.41%		39.29%
Available For Sale And Trading Securities | Corporate bonds and other debt securities
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value	724		834
Principal valuation technique	Discounted cash flow Price-based		Discounted cash flow Price-based
Available For Sale And Trading Securities | Corporate bonds and other debt securities | Discounted Cash Flow Method Or Transaction Price Valuation Technique | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Prepayment rate	0.00%	[1]	0.00%	[1]
Default rate	0.00%	[1]	0.00%	[1]
Recovery rate	15.00%	[1]	15.00%	[1]
Discount margin	0.12%	[1]	0.00%	[1]
Available For Sale And Trading Securities | Corporate bonds and other debt securities | Discounted Cash Flow Method Or Transaction Price Valuation Technique | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Prepayment rate	42.00%	[1]	43.00%	[1]
Default rate	9.00%	[1]	8.00%	[1]
Recovery rate	75.00%	[1]	85.00%	[1]
Discount margin	17.25%	[1]	49.18%	[1]
Available For Sale And Trading Securities | Japanese corporate bonds and foreign corporate bonds | Discounted Cash Flow Method Or Transaction Price Valuation Technique | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount margin	(1.22%)	[2]	0.00%	[2]
Available For Sale And Trading Securities | Japanese corporate bonds and foreign corporate bonds | Discounted Cash Flow Method Or Transaction Price Valuation Technique | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Discount margin	13.03%	[2]	12.32%	[2]
Derivative contracts | Interest rate contracts
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value	17		11
Principal valuation technique	Internal valuation model	[3]	Internal valuation model	[3]
Derivative contracts | Interest rate contracts | Internal Valuation Model | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
IR - IR correlation	23.00%		42.00%
Default rate	0.00%	[4]	0.00%	[4]
Derivative contracts | Interest rate contracts | Internal Valuation Model | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
IR - IR correlation	100.00%		100.00%
Default rate	63.00%	[4]	63.00%	[4]
Derivative contracts | Foreign exchange contracts
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value	11		17
Principal valuation technique	Internal valuation model	[3]	Internal valuation model	[3]
Derivative contracts | Foreign exchange contracts | Internal Valuation Model | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
FX - IR correlation	28.00%		36.00%
FX - FX correlation	55.00%		55.00%
FX volatility	14.00%		16.00%
Default rate	0.00%	[4]	0.00%	[4]
Derivative contracts | Foreign exchange contracts | Internal Valuation Model | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
FX - IR correlation	52.00%		55.00%
FX - FX correlation	55.00%		55.00%
FX volatility	25.00%		26.00%
Default rate	63.00%	[4]	63.00%	[4]
Derivative contracts | Equity-related contracts
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value	1		7
Principal valuation technique	Internal valuation model	[3]	Internal valuation model	[3]
Derivative contracts | Equity-related contracts | Internal Valuation Model | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Equity - IR correlation	0.00%		0.00%
Equity - FX correlation	0.00%		0.00%
Equity volatility	18.00%		14.00%
Derivative contracts | Equity-related contracts | Internal Valuation Model | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Equity - IR correlation	60.00%		60.00%
Equity - FX correlation	70.00%		70.00%
Equity volatility	35.00%		48.00%
Derivative contracts | Credit-related contracts
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value	17	[5]	20	[5]
Principal valuation technique	Internal valuation model	[3],[5]	Internal valuation model	[3],[5]
Derivative contracts | Credit-related contracts | Internal Valuation Model | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Default rate	0.00%		0.00%
Credit correlation	1.00%		2.00%
Derivative contracts | Credit-related contracts | Internal Valuation Model | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Default rate	47.00%		67.00%
Credit correlation	100.00%		100.00%
Long-term debt
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair value	¥ 501		¥ 381
Principal valuation technique	Internal valuation model	[3]	Internal valuation model	[3]
Long-term debt | Internal Valuation Model | Minimum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
IR - IR correlation	23.00%		42.00%
FX - IR correlation	28.00%		36.00%
FX - FX correlation	55.00%		55.00%
Default rate	0.00%		0.00%
Equity - IR correlation	0.00%		0.00%
Credit correlation	19.00%		2.00%
Equity - FX correlation	0.00%
Equity volatility	13.00%		18.00%
Long-term debt | Internal Valuation Model | Maximum
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
IR - IR correlation	100.00%		100.00%
FX - IR correlation	52.00%		55.00%
FX - FX correlation	55.00%		55.00%
Default rate	5.00%		10.00%
Equity - IR correlation	60.00%		60.00%
Credit correlation	100.00%		100.00%
Equity - FX correlation	70.00%
Equity volatility	37.00%		48.00%

[1] These inputs are mainly used for determining the fair values of securitization products such as CDO, CLO and ABS, other than RMBS and CMBS.

[2] This input is mainly used for determining the fair values of Japanese corporate bonds and foreign corporate bonds.

[3] Internal valuation model includes discounted cash flow models and the Black-Scholes option pricing model.

[4] This input represents the counterparty default rate derived from the MHFG Group's own internal credit analysis.

[5] The majority of the fair value of credit derivatives in Level 3 relates to credit derivatives economically hedging the credit risk in certain securitization products. The unobservable inputs of these credit derivatives have already been included in the unobservable inputs related to Trading securities and Available-for-sale securities disclosed above.

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Amounts Reclassified Out of Accumulated Other Comprehensive Income (Loss) into Net Income (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013	Mar. 31, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Before tax	¥ 190,347	[1]
Tax effect	(67,786)	[2]
Net of tax before allocation to noncontrolling interests	122,561
Net of tax attributable to noncontrolling interests	(45)	[2]
Net of tax attributable to MHFG shareholders	122,606
Accumulated Net Unrealized Investment Gain (Loss)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net of tax attributable to MHFG shareholders	126,992		61,425	(27,293)
Accumulated Net Unrealized Investment Gain (Loss) | Investment gains (losses)-net
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Before tax	197,224	[1]
Tax effect	(70,228)	[2]
Net of tax before allocation to noncontrolling interests	126,996
Net of tax attributable to noncontrolling interests	4	[2]
Net of tax attributable to MHFG shareholders	126,992
Accumulated Defined Benefit Plans Adjustment
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net of tax attributable to MHFG shareholders	(4,386)		(10,665)	(16,250)
Accumulated Defined Benefit Plans Adjustment | Salaries and employee benefits
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Before tax	(6,877)	[1]
Tax effect	2,442	[2]
Net of tax before allocation to noncontrolling interests	(4,435)
Net of tax attributable to noncontrolling interests	(49)	[2]
Net of tax attributable to MHFG shareholders	¥ (4,386)

[1] The amounts in the Before tax column are recorded in each account presented as "Affected line items in the consolidated statements of income".

[2] The amounts in the Tax effect column and Net of tax attributable to noncontrolling interests column are recorded in Income tax expense and Net income attributable to noncontrolling interests in the consolidated statements of income respectively.

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Mizuho Financial Group, Inc., parent company (Tables)

12 Months Ended

Mar. 31, 2014

Condensed Financial Information of Parent Company Only, Statements of Financial Condition

Condensed balance sheets

	2013		2014
	(in millions of yen)
Assets:
Cash and due from banks		200		167
Interest-bearing deposits in other banks		26,165		17,103
Investments in subsidiaries and affiliated companies		6,962,630		7,501,486
Other		152,351		210,622
Total		7,141,346		7,729,378
Liabilities and shareholders’ equity:
Short-term borrowings		1,146,995		1,061,460
Long-term debt		240,000		240,000
Other liabilities		26,231		49,448
Shareholders’ equity		5,728,120		6,378,470
Total		7,141,346		7,729,378

Condensed Financial Information of Parent Company Only, Statement of Income

Condensed statements of income

	2012		2013		2014
	(in millions of yen)
Income:
Dividends from subsidiaries and affiliated companies		7,955		233,056		285,130
Management fees from subsidiaries		29,747		28,835		31,146
Other income		12,643		34,668		33,894
Total		50,345		296,559		350,170
Expenses:
Operating expenses		21,260		21,075		22,592
Interest expense		16,383		15,870		14,608
Other expense		1,431		1,207		5,724
Total		39,074		38,152		42,924
Equity in undistributed net income of subsidiaries		645,308		617,565		191,865
Income before income tax expense		656,579		875,972		499,111
Income tax expense		190		560		627
Net income		656,389		875,412		498,484

Condensed Financial Information of Parent Company Only, Statements of Cash Flows

Condensed statements of cash flows

	2012			2013			2014
	(in millions of yen)
Cash flows from operating activities:
Net income		656,389			875,412			498,484
Adjustments and other		(644,977	)		(685,149	)		(222,940	)
Net cash provided by operating activities		11,412			190,263			275,544
Cash flows from investing activities:
Payments for purchases of securities of subsidiaries		(212	)		—			—
Net change in other investing activities		80			1,570			2,631
Net cash provided by (used in) investing activities		(132	)		1,570			2,631
Cash flows from financing activities:
Net change in short-term borrowings		60,000			(40,000	)		(90,000	)
Proceeds from issuance of common stock		146,499			—			—
Purchases of treasury stock		(2,560	)		(7	)		(37,013	)
Dividends paid		(215,937	)		(152,542	)		(152,163	)
Net change in other financing activities		730			749			968
Net cash used in financing activities		(11,268	)		(191,800	)		(278,208	)
Net increase (decrease) in cash and due from banks		12			33			(33	)
Cash and due from banks at beginning of fiscal year		155			167			200
Cash and due from banks at end of fiscal year		167			200			167

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Capital Adequacy Ratios of MHFG MHBK and MHTB (Detail) (JPY ¥)	Mar. 31, 2014		Mar. 31, 2013
Total risk-based capital:
Actual	¥ 2,254,973,000,000
Common Equity Tier 1 capital:
Required	4.50%
Total risk-based capital:
Required	120.00%
Consolidated | Mizuho Financial Group Inc
Common Equity Tier 1 capital:
Required	2,411,000,000,000		2,059,000,000,000
Actual	5,304,000,000,000		4,804,000,000,000
Tier 1 capital:
Required	3,316,000,000,000		2,647,000,000,000
Actual	6,845,000,000,000		6,487,000,000,000
Total risk-based capital:
Required	4,823,000,000,000		4,706,000,000,000
Actual	8,656,000,000,000		8,345,000,000,000
Common Equity Tier 1 capital:
Required	4.00%		3.50%
Actual	8.79%		8.16%
Tier 1 capital:
Required	5.50%		4.50%
Actual	11.35%		11.02%
Total risk-based capital:
Required	8.00%		8.00%
Actual	14.35%		14.18%
Consolidated | Mizuho Bank Limited
Common Equity Tier 1 capital:
Required	2,130,000,000,000	[1]
Actual	5,387,000,000,000	[1]
Tier 1 capital:
Required	2,928,000,000,000	[1]
Actual	6,525,000,000,000	[1]
Total risk-based capital:
Required	4,259,000,000,000	[1]
Actual	8,180,000,000,000	[1]
Common Equity Tier 1 capital:
Required	4.00%	[1]
Actual	10.11%	[1]
Tier 1 capital:
Required	5.50%	[1]
Actual	12.25%	[1]
Total risk-based capital:
Required	8.00%	[1]
Actual	15.36%	[1]
Consolidated | Mizuho Trust & Banking Company Limited
Common Equity Tier 1 capital:
Required	103,000,000,000		91,000,000,000
Actual	379,000,000,000		344,000,000,000
Tier 1 capital:
Required	141,000,000,000		117,000,000,000
Actual	379,000,000,000		344,000,000,000
Total risk-based capital:
Required	205,000,000,000		208,000,000,000
Actual	457,000,000,000		448,000,000,000
Common Equity Tier 1 capital:
Required	4.00%		3.50%
Actual	14.76%		13.24%
Tier 1 capital:
Required	5.50%		4.50%
Actual	14.76%		13.24%
Total risk-based capital:
Required	8.00%		8.00%
Actual	17.80%		17.21%
Non-consolidated | Mizuho Bank Limited
Common Equity Tier 1 capital:
Required	2,072,000,000,000	[1]
Actual	5,260,000,000,000	[1]
Tier 1 capital:
Required	2,849,000,000,000	[1]
Actual	6,370,000,000,000	[1]
Total risk-based capital:
Required	4,144,000,000,000	[1]
Actual	8,072,000,000,000	[1]
Common Equity Tier 1 capital:
Required	4.00%	[1]
Actual	10.15%	[1]
Tier 1 capital:
Required	5.50%	[1]
Actual	12.29%	[1]
Total risk-based capital:
Required	8.00%	[1]
Actual	15.58%	[1]
Non-consolidated | Mizuho Trust & Banking Company Limited
Common Equity Tier 1 capital:
Required	101,000,000,000		90,000,000,000
Actual	375,000,000,000		345,000,000,000
Tier 1 capital:
Required	139,000,000,000		115,000,000,000
Actual	375,000,000,000		345,000,000,000
Total risk-based capital:
Required	203,000,000,000		205,000,000,000
Actual	¥ 451,000,000,000		¥ 446,000,000,000
Common Equity Tier 1 capital:
Required	4.00%		3.50%
Actual	14.76%		13.45%
Tier 1 capital:
Required	5.50%		4.50%
Actual	14.76%		13.45%
Total risk-based capital:
Required	8.00%		8.00%
Actual	17.79%		17.43%

[1] The former MHBK and the former MHCB merged on July 1, 2013 and the former MHCB, the surviving company, changed its trade name to MHBK.

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Accumulated other comprehensive income (loss) (Tables)

12 Months Ended

Mar. 31, 2014

Changes in Each Component of Accumulated Other Comprehensive Income (Loss), Net Of Tax

Changes in each component of AOCI for the fiscal years ended March 31, 2012, 2013 and 2014 are as follows:

	2012			2013			2014
	(in millions of yen)
AOCI, balance at beginning of fiscal year		104,972			245,588			777,997
Unrealized net gains (losses) on available-for-sale securities:
Balance at beginning of fiscal year		514,128			628,636			995,124
Unrealized holding gains (losses) during year		87,215			427,913			255,140
Less: reclassification adjustments for losses (gains) included in net income		27,293			(61,425	)		(126,992	)
Change during year		114,508			366,488			128,148
Balance at end of fiscal year		628,636			995,124			1,123,272
Foreign currency translation adjustments:
Balance at beginning of fiscal year		(165,028	)		(169,881	)		(82,420	)
Foreign currency translation adjustments during year		(6,779	)		87,460			75,986
Less: reclassification adjustments for losses (gains) included in net income		1,926			1			—
Change during year		(4,853	)		87,461			75,986
Balance at end of fiscal year		(169,881	)		(82,420	)		(6,434	)
Pension liability adjustments:
Balance at beginning of fiscal year		(244,128	)		(213,167	)		(134,707	)
Unrealized gains (losses) during year		14,711			67,795			131,360
Less: reclassification adjustments for losses (gains) included in net income		16,250			10,665			4,386
Change during year		30,961			78,460			135,746
Balance at end of fiscal year		(213,167	)		(134,707	)		1,039
Total other comprehensive income (loss), net of tax attributable to MHFG shareholders		140,616			532,409			339,880
AOCI, balance at end of fiscal year		245,588			777,997			1,117,877

Amounts Reclassified Out of Accumulated Other Comprehensive Income (Loss) into Net Income

The following table shows the amounts reclassified out of AOCI into net income during the fiscal year ended March 31, 2014.

	Before tax (1)			Tax effect (2)			Net of tax before allocation to noncontrolling interests			Net of tax attributable to noncontrolling interests (2)			Net of tax attributable to MHFG shareholders
	(in millions of yen)
Amounts reclassified out of AOCI into net income:																Affected line items in the consolidated statements of income:
Unrealized net gains (losses) on available-for-sale securities		197,224			(70,228	)		126,996			4			126,992		Investment gains (losses)—net
Foreign currency translation adjustments		—			—			—			—			—
Pension liability adjustments		(6,877	)		2,442			(4,435	)		(49	)		(4,386	)	Salaries and employee benefits
Total		190,347			(67,786	)		122,561			(45	)		122,606

Notes:

(1) The amounts in the Before tax column are recorded in each account presented as “Affected line items in the consolidated statements of income”.

(2) The amounts in the Tax effect column and Net of tax attributable to noncontrolling interests column are recorded in Income tax expense and Net income attributable to noncontrolling interests in the consolidated statements of income respectively.

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Consolidated Assets of Groups Consolidated VIEs as well as Total Assets and Maximum Exposure to Loss for Its Significant Unconsolidated VIEs (Detail) (JPY ¥) In Billions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Variable Interest Entity [Line Items]
Consolidated VIEs- Consolidated assets	¥ 4,553	¥ 3,811
Significant unconsolidated VIEs- Total assets	3,851	3,763
Significant unconsolidated VIEs- Maximum exposure to loss	626	545
Asset-backed commercial paper/loan programs
Variable Interest Entity [Line Items]
Consolidated VIEs- Consolidated assets	2,403	2,212
Asset-backed securitizations
Variable Interest Entity [Line Items]
Consolidated VIEs- Consolidated assets	423	385
Significant unconsolidated VIEs- Total assets	385	463
Significant unconsolidated VIEs- Maximum exposure to loss	39	37
Investments in securitization products
Variable Interest Entity [Line Items]
Consolidated VIEs- Consolidated assets	181
Significant unconsolidated VIEs- Total assets	531	530
Significant unconsolidated VIEs- Maximum exposure to loss	200	206
Investment funds
Variable Interest Entity [Line Items]
Consolidated VIEs- Consolidated assets	1,508	1,175
Significant unconsolidated VIEs- Total assets	2,935	2,770
Significant unconsolidated VIEs- Maximum exposure to loss	387	302
Trust arrangements and other
Variable Interest Entity [Line Items]
Consolidated VIEs- Consolidated assets	¥ 38	¥ 39

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Gross Unrealized Losses and Fair Value of Available-for-Sale and Held-to-Maturity Securities Aggregated by Length of Time that Individual Securities have been in Continuous Unrealized Loss Position (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Gain (Loss) on Investments [Line Items]
Less than 12 months, Fair value, available-for-sale securities	¥ 11,353,525		¥ 5,625,850
Less than 12 months Gross unrealized losses, available-for-sale securities	17,511		3,821
12 months or more Fair value, available-for-sale securities	1,232,013		940,267
12 months or more Gross unrealized losses, available-for-sale securities	13,983		16,356
Total Fair value, available-for-sale securities	12,585,538		6,566,117
Total Gross unrealized losses, available-for-sale securities	31,494		20,177
Less than 12 months, Fair value, held-to-maturity securities	9,962		199,730
Less than 12 months Gross unrealized losses, held-to-maturity securities	40		82
12 months or more Fair value, held-to-maturity securities	199,670
12 months or more Gross unrealized losses, held-to-maturity securities	180
Total Fair value, held-to-maturity securities	209,632		199,730
Total Gross unrealized losses, held-to-maturity securities	220		82
Debt securities | Agency mortgage-backed securities
Gain (Loss) on Investments [Line Items]
Less than 12 months, Fair value, available-for-sale securities	102,904		90,832
Less than 12 months Gross unrealized losses, available-for-sale securities	2,348		1,429
12 months or more Fair value, available-for-sale securities	76,369
12 months or more Gross unrealized losses, available-for-sale securities	5,357
Total Fair value, available-for-sale securities	179,273	[1]	90,832	[2]
Total Gross unrealized losses, available-for-sale securities	7,705		1,429
Debt securities | Japanese government bonds
Gain (Loss) on Investments [Line Items]
Less than 12 months, Fair value, available-for-sale securities	10,526,182		5,059,495
Less than 12 months Gross unrealized losses, available-for-sale securities	2,871		1,520
12 months or more Fair value, available-for-sale securities	880,520		406,684
12 months or more Gross unrealized losses, available-for-sale securities	856		4,157
Total Fair value, available-for-sale securities	11,406,702		5,466,179
Total Gross unrealized losses, available-for-sale securities	3,727		5,677
Less than 12 months, Fair value, held-to-maturity securities	9,962		199,730
Less than 12 months Gross unrealized losses, held-to-maturity securities	40		82
12 months or more Fair value, held-to-maturity securities	199,670
12 months or more Gross unrealized losses, held-to-maturity securities	180
Total Fair value, held-to-maturity securities	209,632		199,730
Total Gross unrealized losses, held-to-maturity securities	220		82
Debt securities | Japanese local government bonds
Gain (Loss) on Investments [Line Items]
Less than 12 months, Fair value, available-for-sale securities	48,471		27,243
Less than 12 months Gross unrealized losses, available-for-sale securities	90		47
12 months or more Fair value, available-for-sale securities	12,730
12 months or more Gross unrealized losses, available-for-sale securities	16
Total Fair value, available-for-sale securities	61,201		27,243
Total Gross unrealized losses, available-for-sale securities	106		47
Debt securities | U.S. Treasury bonds and federal agency securities
Gain (Loss) on Investments [Line Items]
Less than 12 months, Fair value, available-for-sale securities	66,865		69,168
Less than 12 months Gross unrealized losses, available-for-sale securities	2,865		36
12 months or more Fair value, available-for-sale securities	38,432
12 months or more Gross unrealized losses, available-for-sale securities	1,432
Total Fair value, available-for-sale securities	105,297		69,168
Total Gross unrealized losses, available-for-sale securities	4,297		36
Debt securities | Other foreign government bonds
Gain (Loss) on Investments [Line Items]
Less than 12 months, Fair value, available-for-sale securities	203,026		207,942
Less than 12 months Gross unrealized losses, available-for-sale securities	275		94
12 months or more Fair value, available-for-sale securities	7,654
12 months or more Gross unrealized losses, available-for-sale securities	180
Total Fair value, available-for-sale securities	210,680		207,942
Total Gross unrealized losses, available-for-sale securities	455		94
Debt securities | Residential mortgage-backed securities
Gain (Loss) on Investments [Line Items]
Less than 12 months, Fair value, available-for-sale securities	9,771		12,778
Less than 12 months Gross unrealized losses, available-for-sale securities	137		9
12 months or more Fair value, available-for-sale securities	78,938		122,363
12 months or more Gross unrealized losses, available-for-sale securities	1,570		2,122
Total Fair value, available-for-sale securities	88,709		135,141
Total Gross unrealized losses, available-for-sale securities	1,707		2,131
Debt securities | Commercial mortgage-backed securities
Gain (Loss) on Investments [Line Items]
Less than 12 months, Fair value, available-for-sale securities	11,133		7,159
Less than 12 months Gross unrealized losses, available-for-sale securities	117		111
12 months or more Fair value, available-for-sale securities	43,170		122,588
12 months or more Gross unrealized losses, available-for-sale securities	1,300		3,417
Total Fair value, available-for-sale securities	54,303		129,747
Total Gross unrealized losses, available-for-sale securities	1,417		3,528
Debt securities | Japanese corporate bonds and other debt securities
Gain (Loss) on Investments [Line Items]
Less than 12 months, Fair value, available-for-sale securities	130,020		88,146
Less than 12 months Gross unrealized losses, available-for-sale securities	359		333
12 months or more Fair value, available-for-sale securities	60,230		222,516
12 months or more Gross unrealized losses, available-for-sale securities	2,925		4,955
Total Fair value, available-for-sale securities	190,250		310,662
Total Gross unrealized losses, available-for-sale securities	3,284		5,288
Debt securities | Foreign corporate bonds and other debt securities
Gain (Loss) on Investments [Line Items]
Less than 12 months, Fair value, available-for-sale securities	122,563		54,599
Less than 12 months Gross unrealized losses, available-for-sale securities	1,846		114
12 months or more Fair value, available-for-sale securities	33,960		65,417
12 months or more Gross unrealized losses, available-for-sale securities	347		1,689
Total Fair value, available-for-sale securities	156,523		120,016
Total Gross unrealized losses, available-for-sale securities	2,193		1,803
Equity securities (marketable)
Gain (Loss) on Investments [Line Items]
Less than 12 months, Fair value, available-for-sale securities	132,590		8,488
Less than 12 months Gross unrealized losses, available-for-sale securities	6,603		128
12 months or more Fair value, available-for-sale securities	10		699
12 months or more Gross unrealized losses, available-for-sale securities			16
Total Fair value, available-for-sale securities	132,600		9,187
Total Gross unrealized losses, available-for-sale securities	¥ 6,603		¥ 144

[1] Agency mortgage-backed securities presented in the above table consist of U.S. agency securities and Japanese agency securities, of which the fair values were ¥105,208 million and ¥74,065 million, respectively, at March 31, 2014. All Japanese agency securities are mortgage-backed securities issued by Japan Housing Finance Agency, a Japanese government-sponsored enterprise.

[2] Agency mortgage-backed securities presented in the above table represent U.S. agency securities. U.S. agency securities primarily consist of Government National Mortgage Association or Ginnie Mae securities, which are guaranteed by the United States government.

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Gains and Losses Information Related to Net Investment Hedges (Parenthetical) (Detail) (Financial instruments hedging foreign exchange risk, JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Financial instruments hedging foreign exchange risk
Derivative Instruments, Gain (Loss) [Line Items]
Accumulated other comprehensive income (loss) reclassified to earnings	¥ 0	¥ 13,858	¥ 1,893

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Details of Other Short-Term Borrowings (Parenthetical) (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Short-term Debt [Line Items]
Short-term notes	¥ 497,100	[1]	¥ 477,400	[1]
Consolidated VIEs
Short-term Debt [Line Items]
Commercial paper	199,500		164,194
Short-term notes	¥ 87,468		¥ 88,083

[1] Short-term notes are issued under laws of Japan in the form of dematerialized commercial paper, whose characteristics are economically the same as commercial paper.

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Allowance for loan losses (Tables)

12 Months Ended

Mar. 31, 2014

Allowance for Credit Losses on Financing Receivables

Changes in the Allowance for loan losses by portfolio segment for the fiscal years ended March 31, 2012, 2013 and 2014 are shown below:

	Corporate			Retail			Other		Total
	(in millions of yen)
2012
Balance at beginning of fiscal year		563,116			151,342			20,072		734,530
Provision (credit) for loan losses		(19,433	)		(21,375	)		17,764		(23,044	)
Charge-offs		54,599			5,133			20,410		80,142
Less: Recoveries		48,354			1,442			2,460		52,256
Net charge-offs		6,245			3,691			17,950		27,886
Others (Note)		(1,963	)		—			1,055		(908	)
Balance at end of fiscal year		535,475			126,276			20,941		682,692
2013
Balance at beginning of fiscal year		535,475			126,276			20,941		682,692
Provision (credit) for loan losses		137,549			(14,180	)		16,578		139,947
Charge-offs		69,845			4,249			20,503		94,597
Less: Recoveries		27,447			1,342			2,911		31,700
Net charge-offs		42,398			2,907			17,592		62,897
Others (Note)		11,269			—			1,946		13,215
Balance at end of fiscal year		641,895			109,189			21,873		772,957
2014
Balance at beginning of fiscal year		641,895			109,189			21,873		772,957
Provision (credit) for loan losses		(128,368	)		(12,712	)		14,850		(126,230	)
Charge-offs		47,927			3,935			13,286		65,148
Less: Recoveries		21,423			3,000			2,112		26,535
Net charge-offs		26,504			935			11,174		38,613
Others (Note)		14,326			—			3,737		18,063
Balance at end of fiscal year		501,349			95,542			29,286		626,177

Note: Others include primarily foreign exchange translation.

The table below presents the Allowance for loan losses and loans outstanding by portfolio segment disaggregated on the basis of impairment method at March 31, 2013 and 2014:

	Corporate		Retail		Other		Total
	(in millions of yen)
2013
Allowance for loan losses		641,895		109,189		21,873		772,957
of which individually evaluated for impairment		398,622		14,815		9,247		422,684
of which collectively evaluated for impairment		243,273		94,374		12,626		350,273
Loans (Note)		51,801,814		13,007,792		5,135,858		69,945,464
of which individually evaluated for impairment		1,160,489		45,961		59,974		1,266,424
of which collectively evaluated for impairment		50,641,325		12,961,831		5,075,884		68,679,040
2014
Allowance for loan losses		501,349		95,542		29,286		626,177
of which individually evaluated for impairment		327,011		11,735		10,562		349,308
of which collectively evaluated for impairment		174,338		83,807		18,724		276,869
Loans (Note)		54,651,867		12,922,564		6,049,109		73,623,540
of which individually evaluated for impairment		1,100,938		39,250		54,127		1,194,315
of which collectively evaluated for impairment		53,550,929		12,883,314		5,994,982		72,429,225

Note: Amounts represent loan balances before deducting unearned income and deferred loan fees.

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Fees and commissions income

12 Months Ended

Mar. 31, 2014

Fees and commissions income

26. Fees and commissions income

Details of Fees and commissions income for the fiscal years ended March 31, 2012, 2013 and 2014 are as follows:

	2012		2013		2014
	(in millions of yen)
Securities-related business		116,567		132,787		170,311
Deposits, debentures and lending business		97,509		113,989		114,073
Remittance business		105,015		104,574		108,534
Trust fees		45,990		45,621		48,914
Fees for other customer services		210,332		215,837		233,931
Total		575,413		612,808		675,763

Securities-related business fees consist of broker’s fees and markups on securities underwriting and other securities related activities. Remittance business fees consist of service charges for funds transfer and collections. Trust fees are earned primarily by fiduciary asset management and administration service for corporate pension plans, investment funds, and other. Fees for other customer services include fees related to the MHFG Group’s agency business, guarantee related business, and other.

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Fair Value Hierarchy for Assets and Liabilities Measured on Nonrecurring Basis (Detail) (Fair Value, Measurements, Nonrecurring, JPY ¥) In Billions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Assets:
Loans	¥ 124	¥ 222
Loans held-for-sale	33	5
Other investments	5	11
Premises and equipment-net	1	1
Total assets at fair value	163	239
Level 2
Assets:
Loans held-for-sale		5
Total assets at fair value		5
Level 3
Assets:
Loans	124	222
Loans held-for-sale	33
Other investments	5	11
Premises and equipment-net	1	1
Total assets at fair value	163	234
Aggregate cost
Assets:
Loans	208	343
Loans held-for-sale	34	5
Other investments	6	16
Premises and equipment-net	2	5
Goodwill	4
Total assets at fair value	¥ 254	¥ 369

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Gross Unrealized Losses and Fair Value of Available-for-Sale and Held-to-Maturity Securities Aggregated by Length of Time that Individual Securities have been in Continuous Unrealized Loss Position (Parenthetical) (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Gain (Loss) on Investments [Line Items]
Fair value, available-for-sale securities	¥ 12,585,538		¥ 6,566,117
Debt securities | Agency mortgage-backed securities
Gain (Loss) on Investments [Line Items]
Fair value, available-for-sale securities	179,273	[1]	90,832	[2]
Debt securities | Agency mortgage-backed securities | U.S. agency securities
Gain (Loss) on Investments [Line Items]
Fair value, available-for-sale securities	105,208
Debt securities | Agency mortgage-backed securities | Japanese agency securities
Gain (Loss) on Investments [Line Items]
Fair value, available-for-sale securities	¥ 74,065

[1] Agency mortgage-backed securities presented in the above table consist of U.S. agency securities and Japanese agency securities, of which the fair values were ¥105,208 million and ¥74,065 million, respectively, at March 31, 2014. All Japanese agency securities are mortgage-backed securities issued by Japan Housing Finance Agency, a Japanese government-sponsored enterprise.

[2] Agency mortgage-backed securities presented in the above table represent U.S. agency securities. U.S. agency securities primarily consist of Government National Mortgage Association or Ginnie Mae securities, which are guaranteed by the United States government.

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Dividends - Additional Information (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2014 Japan Gaap Additional Paid-in Capital	Mar. 31, 2014 Japan Gaap Retained Earnings	Mar. 31, 2014 March 2014	Mar. 31, 2013 March 2014
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Capital stock	¥ 2,254,973
Capital surplus	1,194,865
Retained earnings	1,419,866
Description of dividend payment restrictions	In making a distribution of retained earnings, an entity must set aside in its legal reserve an amount equal to one-tenth of the amount of retained earnings so distributed, until its legal reserve reaches to one-quarter of its capital stock.
Percentage of retained earnings set aside for legal reserve	10.00%
Legal reserve	1,199,215	1,194,865	4,350
Maximum amount available for dividends under Company Law and the Banking Law	¥ 1,412,282
Minimum Common Equity Tier 1 ratio required for capital adequacy purposes	4.50%			4.00%	3.50%

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Computation of Basic and Diluted Earnings Per Common Share (Detail) (JPY ¥) In Millions, except Share data in Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2012
Net income:
Net income attributable to MHFG shareholders	¥ 498,484		¥ 875,412		¥ 656,389
Less: Net income attributable to preferred shareholders	6,745		8,221		8,672
Net income attributable to common shareholders	491,739		867,191		647,717
Effect of dilutive securities:
Convertible preferred stock	6,437		7,121		7,571
Net income attributable to common shareholders after assumed conversions	¥ 498,176		¥ 874,312		¥ 655,288
Shares:
Weighted average common shares outstanding	24,189,670		24,053,282		23,073,544
Effect of dilutive securities:
Convertible preferred stock	1,164,941	[1]	1,291,854	[1]	1,384,367	[1]
Stock compensation-type stock options	16,641		20,093		11,628
Weighted average common shares after assumed conversions	25,371,252		25,365,229		24,469,539
Amounts per common share:
Basic net income per common share	¥ 20.33		¥ 36.05		¥ 28.07
Diluted net income per common share	¥ 19.64		¥ 34.47		¥ 26.78

[1] The number of the dilutive common shares is based on the applicable conversion prices.

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Income Taxes - Additional Information (Detail) (JPY ¥)					12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2014 Japan	Mar. 31, 2014 United States	Mar. 31, 2014 United Kingdom	Mar. 31, 2014 Parent Company
Income Taxes [Line Items]
Net operating loss carryforwards	¥ 1,414,000,000,000							¥ 868,000,000,000
Unrecognized tax benefits, interest and penalties	699,000,000	563,000,000	802,000,000
Unrecognized tax benefits	¥ 1,691,000,000	¥ 1,454,000,000	¥ 2,160,000,000	¥ 1,829,000,000
Open tax year					2006	2002	2002

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Useful Lives of Premises and Equipment (Detail)	12 Months Ended
	Mar. 31, 2014
Buildings | Minimum
Property, Plant, and Equipment Disclosure [Line Items]
Years	3 years
Buildings | Maximum
Property, Plant, and Equipment Disclosure [Line Items]
Years	50 years
Equipment and furniture | Minimum
Property, Plant, and Equipment Disclosure [Line Items]
Years	2 years
Equipment and furniture | Maximum
Property, Plant, and Equipment Disclosure [Line Items]
Years	20 years
Leasehold improvements | Minimum
Property, Plant, and Equipment Disclosure [Line Items]
Years	2 years
Leasehold improvements | Maximum
Property, Plant, and Equipment Disclosure [Line Items]
Years	50 years

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Changes in Allowance for Loan Losses (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance at beginning of fiscal year	¥ 772,957		¥ 682,692		¥ 734,530
Provision (credit) for loan losses	(126,230)		139,947		(23,044)
Charge-offs	65,148		94,597		80,142
Less: Recoveries	26,535		31,700		52,256
Net charge-offs	38,613		62,897		27,886
Others	18,063	[1]	13,215	[1]	(908)	[1]
Balance at end of fiscal year	626,177		772,957		682,692
Allowance for loan losses of which individually evaluated for impairment	349,308		422,684
Allowance for loan losses of which collectively evaluated for impairment	276,869		350,273
Loans	73,623,540	[2]	69,945,464	[2]
Loans of which individually evaluated for impairment	1,194,315	[2]	1,266,424	[2]
Loans of which collectively evaluated for impairment	72,429,225	[2]	68,679,040	[2]
Corporate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance at beginning of fiscal year	641,895		535,475		563,116
Provision (credit) for loan losses	(128,368)		137,549		(19,433)
Charge-offs	47,927		69,845		54,599
Less: Recoveries	21,423		27,447		48,354
Net charge-offs	26,504		42,398		6,245
Others	14,326	[1]	11,269	[1]	(1,963)	[1]
Balance at end of fiscal year	501,349		641,895		535,475
Allowance for loan losses of which individually evaluated for impairment	327,011		398,622
Allowance for loan losses of which collectively evaluated for impairment	174,338		243,273
Loans	54,651,867	[2]	51,801,814	[2]
Loans of which individually evaluated for impairment	1,100,938	[2]	1,160,489	[2]
Loans of which collectively evaluated for impairment	53,550,929	[2]	50,641,325	[2]
Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance at beginning of fiscal year	109,189		126,276		151,342
Provision (credit) for loan losses	(12,712)		(14,180)		(21,375)
Charge-offs	3,935		4,249		5,133
Less: Recoveries	3,000		1,342		1,442
Net charge-offs	935		2,907		3,691
Balance at end of fiscal year	95,542		109,189		126,276
Allowance for loan losses of which individually evaluated for impairment	11,735		14,815
Allowance for loan losses of which collectively evaluated for impairment	83,807		94,374
Loans	12,922,564	[2]	13,007,792	[2]
Loans of which individually evaluated for impairment	39,250	[2]	45,961	[2]
Loans of which collectively evaluated for impairment	12,883,314	[2]	12,961,831	[2]
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Balance at beginning of fiscal year	21,873		20,941		20,072
Provision (credit) for loan losses	14,850		16,578		17,764
Charge-offs	13,286		20,503		20,410
Less: Recoveries	2,112		2,911		2,460
Net charge-offs	11,174		17,592		17,950
Others	3,737	[1]	1,946	[1]	1,055	[1]
Balance at end of fiscal year	29,286		21,873		20,941
Allowance for loan losses of which individually evaluated for impairment	10,562		9,247
Allowance for loan losses of which collectively evaluated for impairment	18,724		12,626
Loans	6,049,109	[2]	5,135,858	[2]
Loans of which individually evaluated for impairment	54,127	[2]	59,974	[2]
Loans of which collectively evaluated for impairment	¥ 5,994,982	[2]	¥ 5,075,884	[2]

[1] Others include primarily foreign exchange translation.

[2] Amounts represent loan balances before deducting unearned income and deferred loan fees.

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Earnings per common share (Tables)

12 Months Ended

Mar. 31, 2014

Schedule of Calculation of Numerator and Denominator in Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per common share for the fiscal years ended March 31, 2012, 2013 and 2014:

	2012		2013		2014
	(in millions of yen)
Net income:
Net income attributable to MHFG shareholders		656,389		875,412		498,484
Less: Net income attributable to preferred shareholders		8,672		8,221		6,745
Net income attributable to common shareholders		647,717		867,191		491,739
Effect of dilutive securities:
Convertible preferred stock		7,571		7,121		6,437
Net income attributable to common shareholders after assumed conversions		655,288		874,312		498,176

	2012		2013		2014
	(thousands of shares)
Shares:
Weighted average common shares outstanding		23,073,544		24,053,282		24,189,670
Effect of dilutive securities:
Convertible preferred stock (Note)		1,384,367		1,291,854		1,164,941
Stock compensation-type stock options		11,628		20,093		16,641
Weighted average common shares after assumed conversions		24,469,539		25,365,229		25,371,252

	2012		2013		2014
	(in yen)
Amounts per common share:
Basic net income per common share		28.07		36.05		20.33
Diluted net income per common share		26.78		34.47		19.64

Note: The number of the dilutive common shares is based on the applicable conversion prices.

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Composition of Preferred Stock (Detail) (JPY ¥) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2012
Class of Stock [Line Items]
Aggregate amount	¥ 914,752		¥ 951,442		¥ 951,442
Number of shares Authorized	4,251,442,000		4,369,512,000		4,369,512,000
Number of shares Issued	914,752,000		951,442,000		951,442,000
Number of shares In treasury	13,817,747		22,128,230
Eleventh series class XI preferred stock
Class of Stock [Line Items]
Aggregate amount	914,752	[1]	914,752	[1]	914,752	[1]
Number of shares Authorized	914,752,000	[1]	1,369,512,000	[1]	1,369,512,000	[1]
Number of shares Issued	914,752,000	[1]	914,752,000	[1]	914,752,000	[1]
Liquidation value per share	¥ 1,000	[1]	¥ 1,000	[1]	¥ 1,000	[1]
Convertible or not	Yes	[1]	Yes	[1]	Yes	[1]
Class XII preferred stock
Class of Stock [Line Items]
Number of shares Authorized			1,500,000,000		1,500,000,000
Convertible or not			-		-
Thirteenth series class XIII preferred stock
Class of Stock [Line Items]
Aggregate amount			¥ 36,690		¥ 36,690
Number of shares Authorized	36,690,000		1,500,000,000		1,500,000,000
Number of shares Issued			36,690,000		36,690,000
Liquidation value per share			¥ 1,000		¥ 1,000
Convertible or not	-		No		No
First series class XIV preferred stock
Class of Stock [Line Items]
Number of shares Authorized	900,000,000	[2]
Convertible or not	-	[2]
Second series class XIV preferred stock
Class of Stock [Line Items]
Number of shares Authorized	900,000,000	[2]
Convertible or not	-	[2]
Third series class XIV preferred stock
Class of Stock [Line Items]
Number of shares Authorized	900,000,000	[2]
Convertible or not	-	[2]
Fourth series class XIV preferred stock
Class of Stock [Line Items]
Number of shares Authorized	900,000,000	[2]
Convertible or not	-	[2]
First series class XV preferred stock
Class of Stock [Line Items]
Number of shares Authorized	900,000,000	[3]
Convertible or not	-	[3]
Second series class XV preferred stock
Class of Stock [Line Items]
Number of shares Authorized	900,000,000	[3]
Convertible or not	-	[3]
Third series class XV preferred stock
Class of Stock [Line Items]
Number of shares Authorized	900,000,000	[3]
Convertible or not	-	[3]
Fourth series class XV preferred stock
Class of Stock [Line Items]
Number of shares Authorized	900,000,000	[3]
Convertible or not	-	[3]
First series class XVI preferred stock
Class of Stock [Line Items]
Number of shares Authorized	1,500,000,000	[4]
Convertible or not	-	[4]
Second series class XVI preferred stock
Class of Stock [Line Items]
Number of shares Authorized	1,500,000,000	[4]
Convertible or not	-	[4]
Third series class XVI preferred stock
Class of Stock [Line Items]
Number of shares Authorized	1,500,000,000	[4]
Convertible or not	-	[4]
Fourth series class XVI preferred stock
Class of Stock [Line Items]
Number of shares Authorized	1,500,000,000	[4]
Convertible or not	-	[4]
Preferred stock
Class of Stock [Line Items]
Number of shares In treasury	602,100,700		574,087,800		541,073,800
Preferred stock | Eleventh series class XI preferred stock
Class of Stock [Line Items]
Number of shares In treasury	602,100,700	[1]	574,087,800	[1]	541,073,800	[1]

[1] The aggregate amount and number of issued shares include the preferred stock in treasury which has been converted to common stock but not yet cancelled.

[2] The total number of authorized shares from first to fourth series class XIV preferred stock shall not exceed 900,000,000.

[3] The total number of authorized shares from first to fourth series class XV preferred stock shall not exceed 900,000,000.

[4] The total number of authorized shares from first to fourth series class XVI preferred stock shall not exceed 1,500,000,000.

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Net Operating Losses Carryforwards by Expiration Date (Detail) (JPY ¥) In Billions, unless otherwise specified	Mar. 31, 2014
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	¥ 1,414
2018
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	865
2019
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	8
2020 and thereafter
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	¥ 541

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Amortized Cost and Fair Value of Available-for-sale and Held-to-maturity Debt Securities by Contractual Maturity (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Investments Classified by Contractual Maturity Date [Line Items]
Due in one year or less, amortized cost	¥ 7,102,998
Due after one year through five years, amortized cost	15,800,383
Due after five years through ten years,amortized cost	2,799,710
Due after ten years, amortized cost	1,464,686
Total	27,167,777
Due in one year or less, amortized cost	600,047
Due after one year through five years, amortized cost	3,080,346
Due after five years through ten years, amortized cost	359,690
Due after ten years, amortized cost
Total	4,040,083	3,000,403
Due in one year or less, fair value	7,105,281
Due after one year through five years, fair value	15,814,574
Due after five years through ten years, fair value	2,817,841
Due after ten years, fair value	1,488,974
Total	27,226,670
Due in one year or less, fair value	601,750
Due after one year through five years, fair value	3,091,769
Due after five years through ten years, fair value	364,298
Due after ten years, fair value
Fair value, held-to-maturity securities	4,057,817	3,020,344
Debt securities | Japanese government bonds
Investments Classified by Contractual Maturity Date [Line Items]
Due in one year or less, amortized cost	5,926,354
Due after one year through five years, amortized cost	13,876,023
Due after five years through ten years,amortized cost	2,237,263
Total	22,039,640
Due in one year or less, amortized cost	600,047
Due after one year through five years, amortized cost	3,080,346
Due after five years through ten years, amortized cost	359,690
Due after ten years, amortized cost
Total	4,040,083	3,000,403
Due in one year or less, fair value	5,926,642
Due after one year through five years, fair value	13,882,371
Due after five years through ten years, fair value	2,246,963
Total	22,055,976
Due in one year or less, fair value	601,750
Due after one year through five years, fair value	3,091,769
Due after five years through ten years, fair value	364,298
Due after ten years, fair value
Fair value, held-to-maturity securities	4,057,817	3,020,344
Debt securities | Japanese local government bonds
Investments Classified by Contractual Maturity Date [Line Items]
Due in one year or less, amortized cost	30,346
Due after one year through five years, amortized cost	130,751
Due after five years through ten years,amortized cost	80,108
Due after ten years, amortized cost	780
Total	241,985
Due in one year or less, fair value	30,384
Due after one year through five years, fair value	131,438
Due after five years through ten years, fair value	81,952
Due after ten years, fair value	888
Total	244,662
Debt securities | U.S. Treasury bonds and federal agency securities
Investments Classified by Contractual Maturity Date [Line Items]
Due in one year or less, amortized cost	43,475
Due after one year through five years, amortized cost	75,005
Due after five years through ten years,amortized cost	39,864
Total	158,344
Due in one year or less, fair value	43,907
Due after one year through five years, fair value	72,142
Due after five years through ten years, fair value	38,432
Total	154,481
Debt securities | Other foreign government bonds
Investments Classified by Contractual Maturity Date [Line Items]
Due in one year or less, amortized cost	507,140
Due after one year through five years, amortized cost	211,949
Due after ten years, amortized cost	192
Total	719,281
Due in one year or less, fair value	507,577
Due after one year through five years, fair value	213,355
Due after ten years, fair value	250
Total	721,182
Debt securities | Agency mortgage-backed securities
Investments Classified by Contractual Maturity Date [Line Items]
Due after ten years, amortized cost	955,291
Total	955,291
Due after ten years, fair value	960,874
Total	960,874
Debt securities | Residential mortgage-backed securities
Investments Classified by Contractual Maturity Date [Line Items]
Due after ten years, amortized cost	318,955
Total	318,955
Due after ten years, fair value	332,005
Total	332,005
Debt securities | Commercial mortgage-backed securities
Investments Classified by Contractual Maturity Date [Line Items]
Due in one year or less, amortized cost	4,085
Due after one year through five years, amortized cost	123,455
Due after five years through ten years,amortized cost	31,749
Total	159,289
Due in one year or less, fair value	4,087
Due after one year through five years, fair value	124,981
Due after five years through ten years, fair value	31,836
Total	160,904
Debt securities | Japanese corporate bonds and other debt securities
Investments Classified by Contractual Maturity Date [Line Items]
Due in one year or less, amortized cost	369,682
Due after one year through five years, amortized cost	1,131,664
Due after five years through ten years,amortized cost	326,861
Due after ten years, amortized cost	186,838
Total	2,015,045
Due in one year or less, fair value	370,157
Due after one year through five years, fair value	1,137,145
Due after five years through ten years, fair value	329,033
Due after ten years, fair value	191,742
Total	2,028,077
Debt securities | Foreign corporate bonds and other debt securities
Investments Classified by Contractual Maturity Date [Line Items]
Due in one year or less, amortized cost	221,916
Due after one year through five years, amortized cost	251,536
Due after five years through ten years,amortized cost	83,865
Due after ten years, amortized cost	2,630
Total	559,947
Due in one year or less, fair value	222,527
Due after one year through five years, fair value	253,142
Due after five years through ten years, fair value	89,625
Due after ten years, fair value	3,215
Total	¥ 568,509

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Stock-Based Compensation - Additional Information (Detail) (JPY ¥) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of types of stock-based compensation plans	1
Stock-based compensation plan, shares of common stock to be issued or transferred upon exercise of each of the stock acquisition rights	1,000
Stock-based compensation plan, exercise price per share	¥ 1
Stock-based compensation plan, contractual term (in years)	20 years
Mizuho Financial Group Inc, Mizuho Bank Limited and Mizuho Corporate Bank Limited
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation plan, exercise price per share	¥ 1
Stock-based compensation plan, weighted-average grant-date fair value	¥ 192,610	¥ 113,250	¥ 91,840
Stock-based compensation plan, compensation cost recognized in income	¥ 1,527	¥ 1,333	¥ 788

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Troubled Debt Restructuring (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Financing Receivable, Modifications [Line Items]
Loan forgiveness or debt to equity swaps Recorded investment	¥ 3,078	[1]	¥ 1,062	[1]
Loan forgiveness or debt to equity swaps charge-off	1,321	[2]	4,993	[2]
Interest rate reduction and/or Postponement of principal and/or interest	646,107		985,999
Domestic
Financing Receivable, Modifications [Line Items]
Loan forgiveness or debt to equity swaps Recorded investment	3,078	[1]
Loan forgiveness or debt to equity swaps charge-off	1,321	[2]	1,243	[2]
Interest rate reduction and/or Postponement of principal and/or interest	585,759		845,935
Domestic | Manufacturing
Financing Receivable, Modifications [Line Items]
Loan forgiveness or debt to equity swaps Recorded investment	235	[1]
Loan forgiveness or debt to equity swaps charge-off	481	[2]
Interest rate reduction and/or Postponement of principal and/or interest	196,705		277,957
Domestic | Construction and real estate
Financing Receivable, Modifications [Line Items]
Loan forgiveness or debt to equity swaps Recorded investment	2,528	[1]
Loan forgiveness or debt to equity swaps charge-off	136	[2]
Interest rate reduction and/or Postponement of principal and/or interest	44,573		129,908
Domestic | Services
Financing Receivable, Modifications [Line Items]
Loan forgiveness or debt to equity swaps Recorded investment	310	[1]
Loan forgiveness or debt to equity swaps charge-off	555	[2]
Interest rate reduction and/or Postponement of principal and/or interest	57,945		68,930
Domestic | Wholesale and retail
Financing Receivable, Modifications [Line Items]
Loan forgiveness or debt to equity swaps Recorded investment	5	[1]
Loan forgiveness or debt to equity swaps charge-off	149	[2]	1,243	[2]
Interest rate reduction and/or Postponement of principal and/or interest	170,217		218,497
Domestic | Transportation and communications
Financing Receivable, Modifications [Line Items]
Interest rate reduction and/or Postponement of principal and/or interest	34,598		52,206
Domestic | Banks and other financial institutions
Financing Receivable, Modifications [Line Items]
Interest rate reduction and/or Postponement of principal and/or interest	31,901		34,468
Domestic | Other industries
Financing Receivable, Modifications [Line Items]
Interest rate reduction and/or Postponement of principal and/or interest	1,998		1,809
Domestic | Individuals
Financing Receivable, Modifications [Line Items]
Interest rate reduction and/or Postponement of principal and/or interest	47,822		62,160
Foreign
Financing Receivable, Modifications [Line Items]
Loan forgiveness or debt to equity swaps Recorded investment			1,062	[1]
Loan forgiveness or debt to equity swaps charge-off			3,750	[2]
Interest rate reduction and/or Postponement of principal and/or interest	¥ 60,348		¥ 140,064

[1] Amounts represent the book values of loans immediately after the restructurings.

[2] Charge-offs represent the loss impact on the consolidated statements of income for the fiscal year that resulted from the restructurings.

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Fair Value of Plan Assets by Asset Category (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	¥ 1,706,054		¥ 1,527,744		¥ 1,323,163
General account of life insurance companies
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	111,000	[1]	111,000	[1]
Hedge funds
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	2,000		1,000
Other Invested Assets
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	88,000		90,000
Japan | Equity securities | Common stocks
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	782,000	[2]	716,000	[2]
Japan | Equity securities | Pooled funds
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	56,000	[3]	86,000	[3]
Japan | Debt securities | Pooled funds
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	68,000	[3]	46,000	[3]
Japan | Debt securities | Government bonds
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	229,000		179,000
Japan | Debt securities | Other
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	24,000		7,000
Foreign | Equity securities | Common stocks
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	99,000		56,000
Foreign | Equity securities | Pooled funds
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	154,000	[3]	92,000	[3]
Foreign | Debt securities | Pooled funds
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	9,000	[3]	46,000	[3]
Foreign | Debt securities | Government bonds
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	69,000		75,000
Foreign | Debt securities | Other
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	15,000		23,000
Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	1,281,000		1,112,000
Level 1 | Other Invested Assets
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	91,000	[4]	92,000	[4]
Level 1 | Japan | Equity securities | Common stocks
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	782,000	[2]	716,000	[2]
Level 1 | Japan | Equity securities | Pooled funds
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	5,000	[3]
Level 1 | Japan | Debt securities | Government bonds
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	229,000		179,000
Level 1 | Foreign | Equity securities | Common stocks
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	96,000		54,000
Level 1 | Foreign | Equity securities | Pooled funds
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	15,000	[3]
Level 1 | Foreign | Debt securities | Government bonds
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	63,000		71,000
Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	423,000		415,000
Level 2 | General account of life insurance companies
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	111,000	[1]	111,000	[1]
Level 2 | Other Invested Assets
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	(3,000)	[5]	(2,000)	[5]
Level 2 | Japan | Equity securities | Pooled funds
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	51,000	[3]	86,000	[3]
Level 2 | Japan | Debt securities | Pooled funds
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	68,000	[3]	46,000	[3]
Level 2 | Japan | Debt securities | Other
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	24,000		7,000
Level 2 | Foreign | Equity securities | Common stocks
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	3,000		2,000
Level 2 | Foreign | Equity securities | Pooled funds
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	139,000	[3]	92,000	[3]
Level 2 | Foreign | Debt securities | Pooled funds
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	9,000	[3]	46,000	[3]
Level 2 | Foreign | Debt securities | Government bonds
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	6,000		4,000
Level 2 | Foreign | Debt securities | Other
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	15,000		23,000
Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	2,000		1,000
Level 3 | Hedge funds
Defined Benefit Plan Disclosure [Line Items]
Fair values of plan assets	¥ 2,000		¥ 1,000

[1] Investments in this class are measured at conversion value.

[2] This class includes equity securities held in the employee retirement benefit trusts of ¥681 billion and ¥782 billion at March 31, 2013 and 2014, respectively, which are well-diversified across industries.

[3] These classes primarily include pension investment fund trusts. Investments in these classes are generally measured at their net asset values per share and can be redeemable within a short-term period upon request.

[4] Amounts primarily include cash and short-term assets carried at fair value.

[5] Amounts primarily include foreign exchange contracts carried at fair value.

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Summary of Stock-Based Compensation Plan (Detail) (JPY ¥) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Mar. 31, 2014
Weighted-average exercise price
Exercisable at end of fiscal year	¥ 1
Mizuho Financial Group Inc, Mizuho Bank Limited and Mizuho Corporate Bank Limited
Number of shares
Outstanding at beginning of fiscal year	23,863,000
Granted during fiscal year	7,932,000
Exercised during fiscal year	9,252,000
Outstanding at end of fiscal year	22,543,000
Exercisable at end of fiscal year	630,000
Weighted-average exercise price
Outstanding at beginning of fiscal year	¥ 1
Granted during fiscal year	¥ 1
Exercised during fiscal year	¥ 1
Outstanding at end of fiscal year	¥ 1
Exercisable at end of fiscal year	¥ 1
Weighted-average remaining contractual term
Outstanding at end of fiscal year	18 years 5 months 19 days
Exercisable at end of fiscal year	16 years 3 months 22 days
Aggregate intrinsic value
Outstanding at end of fiscal year	¥ 4,576
Exercisable at end of fiscal year	¥ 128

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Loans Outstanding by Domicile and Industry of Borrower (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	¥ 73,623,540	[1]	¥ 69,945,464	[1]
Less: Unearned income and deferred loan fees-net	138,586		111,981
Loans outstanding	73,484,954		69,833,483
Domestic
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	54,938,307		54,580,313
Domestic | Manufacturing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	8,025,932		8,078,871
Domestic | Construction and real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	7,204,594		7,477,853
Domestic | Services
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	3,956,742		3,972,011
Domestic | Wholesale and retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	5,350,707		5,355,974
Domestic | Transportation and communications
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	3,247,394		3,147,106
Domestic | Banks and other financial institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	3,460,147		3,142,998
Domestic | Government and public institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	6,734,451		6,907,426
Domestic | Other industries
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	4,983,821	[2]	4,521,994	[2]
Domestic | Mortgage loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	11,187,206		11,234,561
Domestic | Other individual loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	787,313		741,519
Foreign
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	18,685,233		15,365,151
Foreign | Banks and other financial institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	4,610,141		4,088,651
Foreign | Government and public institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	883,004		595,911
Foreign | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	12,937,005		10,481,071
Foreign | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	¥ 255,083	[2]	¥ 199,518	[2]

[1] Amounts represent loan balances before deducting unearned income and deferred loan fees.

[2] Other industries of domestic and Other of foreign include trade receivables and lease receivables of consolidated VIEs.

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Consolidated Income Statement and Total Assets Information by Major Geographic Area (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2012
Segment Reporting Information [Line Items]
Total revenue	¥ 2,505,600	[1]	¥ 2,862,800	[1]	¥ 2,527,200	[1]
Total expenses	1,779,300	[2]	1,977,600	[2]	1,864,400	[2]
Income before income tax expense	726,343		885,180		662,835
Net income	500,235		881,156		648,957
Total assets at end of fiscal year	175,699,346		178,746,994		166,361,600
Japan
Segment Reporting Information [Line Items]
Total revenue	1,783,900	[1]	2,190,700	[1]	1,965,700	[1]
Total expenses	1,397,300	[2]	1,668,900	[2]	1,561,200	[2]
Income before income tax expense	386,600		521,800		404,500
Net income	198,900		524,700		419,200
Total assets at end of fiscal year	124,557,700		126,768,800		124,443,600
Americas
Segment Reporting Information [Line Items]
Total revenue	349,900	[1]	383,700	[1]	251,300	[1]
Total expenses	144,600	[2]	140,500	[2]	104,000	[2]
Income before income tax expense	205,300		243,200		147,300
Net income	189,700		252,300		131,200
Total assets at end of fiscal year	27,527,800		31,168,800		25,368,900
Europe
Segment Reporting Information [Line Items]
Total revenue	152,900	[1]	125,800	[1]	132,000	[1]
Total expenses	96,300	[2]	48,400	[2]	102,900	[2]
Income before income tax expense	56,600		77,400		29,100
Net income	54,000		75,000		28,100
Total assets at end of fiscal year	10,784,500		10,591,200		8,868,500
Asia/Oceania excluding Japan, and others
Segment Reporting Information [Line Items]
Total revenue	218,900	[1]	162,600	[1]	178,200	[1]
Total expenses	141,100	[2]	119,800	[2]	96,300	[2]
Income before income tax expense	77,800		42,800		81,900
Net income	57,600		29,200		70,500
Total assets at end of fiscal year	¥ 12,829,300		¥ 10,218,200		¥ 7,680,600

[1] Total revenue is comprised of Interest and dividend income and Noninterest income.

[2] Total expenses are comprised of Interest expense, Provision (credit) for loan losses and Noninterest expenses.

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Loans Modified as Troubled Debt Restructuring within Previous Twelve Months and for which There Was Payment Default During Current Fiscal Year (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Financing Receivable, Modifications [Line Items]
Recorded investment	¥ 70,841	¥ 79,664
Domestic
Financing Receivable, Modifications [Line Items]
Recorded investment	70,726	73,290
Domestic | Manufacturing
Financing Receivable, Modifications [Line Items]
Recorded investment	21,144	18,740
Domestic | Construction and real estate
Financing Receivable, Modifications [Line Items]
Recorded investment	3,500	18,751
Domestic | Services
Financing Receivable, Modifications [Line Items]
Recorded investment	3,707	5,976
Domestic | Wholesale and retail
Financing Receivable, Modifications [Line Items]
Recorded investment	21,916	19,920
Domestic | Transportation and communications
Financing Receivable, Modifications [Line Items]
Recorded investment	14,069	4,386
Domestic | Other industries
Financing Receivable, Modifications [Line Items]
Recorded investment	107
Domestic | Individuals
Financing Receivable, Modifications [Line Items]
Recorded investment	6,283	5,517
Foreign
Financing Receivable, Modifications [Line Items]
Recorded investment	¥ 115	¥ 6,374

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Investments - Additional Information (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Gain (Loss) on Investments [Line Items]
Available-for-sale securities, gross realized gains on sales	¥ 231,955	¥ 193,298	¥ 100,371
Available-for-sale securities, gross realized losses on sales	29,387	21,422	28,840
Equity method Investments, carrying value	196,015	225,696
Equity method investments, earnings (losses)	27,975	(2,192)	10,807
Available-for-sale securities
Gain (Loss) on Investments [Line Items]
Marketable Securities, Realized Loss, Other than Temporary Impairments, Amount	5,344	76,393	117,029
Available-for-sale securities | Debt securities
Gain (Loss) on Investments [Line Items]
Marketable Securities, Realized Loss, Other than Temporary Impairments, Amount	1,151	4,085	7,238
Available-for-sale securities | Equity securities
Gain (Loss) on Investments [Line Items]
Marketable Securities, Realized Loss, Other than Temporary Impairments, Amount	4,193	72,308	109,791
Orico
Gain (Loss) on Investments [Line Items]
Percentage of proportionate share to the total outstanding common shares	22.20%
Maximum percentage of proportionate share to the total outstanding common shares if convertible preferred shares are fully converted	58.00%
Equity securities (marketable)
Gain (Loss) on Investments [Line Items]
Equity method Investments, carrying value	78,458	68,289
Equity method Investments, aggregated market values	¥ 96,471	¥ 111,543

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Subsequent events (Tables)

12 Months Ended

Mar. 31, 2014

Details of Redeemed Preferred Securities

The following table describes the details of the redeemed preferred securities.

Issuer	Aggregate redemption amount		Reason for the redemption
	(in millions)
Mizuho Capital Investment (USD) 2 Limited		$850		Arrival of optional redemption date
Mizuho Capital Investment (JPY) 5 Limited		Series A ¥139,500		Arrival of optional redemption date

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Earnings per common share

12 Months Ended

Mar. 31, 2014

Earnings per common share

18. Earnings per common share

Basic earnings per common share are computed by dividing net income by the weighted average number of common shares outstanding during the fiscal year. Diluted earnings per common share reflect the assumed conversion to common shares of all convertible securities such as convertible preferred stock.

The following table sets forth the computation of basic and diluted earnings per common share for the fiscal years ended March 31, 2012, 2013 and 2014:

	2012		2013		2014
	(in millions of yen)
Net income:
Net income attributable to MHFG shareholders		656,389		875,412		498,484
Less: Net income attributable to preferred shareholders		8,672		8,221		6,745
Net income attributable to common shareholders		647,717		867,191		491,739
Effect of dilutive securities:
Convertible preferred stock		7,571		7,121		6,437
Net income attributable to common shareholders after assumed conversions		655,288		874,312		498,176

	2012		2013		2014
	(thousands of shares)
Shares:
Weighted average common shares outstanding		23,073,544		24,053,282		24,189,670
Effect of dilutive securities:
Convertible preferred stock (Note)		1,384,367		1,291,854		1,164,941
Stock compensation-type stock options		11,628		20,093		16,641
Weighted average common shares after assumed conversions		24,469,539		25,365,229		25,371,252

	2012		2013		2014
	(in yen)
Amounts per common share:
Basic net income per common share		28.07		36.05		20.33
Diluted net income per common share		26.78		34.47		19.64

Note: The number of the dilutive common shares is based on the applicable conversion prices.

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Combined Funded Status and Amounts Recognized in Accompanying Consolidated Balance Sheets (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2012
Change in benefit obligation:
Benefit obligation at beginning of fiscal year	¥ 1,399,123	[1]	¥ 1,343,714
Service cost	33,429		30,422		27,734
Interest cost	20,341		23,186		24,267
Plan participants' contributions	1,181		1,184
Amendments			1,782
Actuarial loss (gain)	(70,214)		63,140
Foreign exchange translation	4,854		2,209
Benefits paid	(49,905)		(49,593)
Lump-sum payments	(18,119)		(16,921)
Benefit obligation at end of fiscal year	1,320,690	[1]	1,399,123	[1]	1,343,714
Change in plan assets:
Fair value of plan assets at beginning of fiscal year	1,527,744		1,323,163
Actual return (negative return) on plan assets	171,970		199,341
Foreign exchange translation	4,128		1,783
Employer contributions	50,936		51,866
Plan participants' contributions	1,181		1,184
Benefits paid	(49,905)		(49,593)
Fair value of plan assets at end of fiscal year	1,706,054		1,527,744		1,323,163
Funded status	385,364		128,621
Amounts recognized in the consolidated balance sheets consist of:
Prepaid pension cost	403,654		153,414
Accrued pension liability	(18,290)		(24,793)
Net amount recognized	385,364		128,621
Amounts recognized in Accumulated other comprehensive income (loss) before-tax consist of:
Prior service benefit (cost)	(635)		(440)
Net actuarial gain (loss)	(24,814)		(236,359)
Net amount recognized	¥ (25,449)		¥ (236,799)

[1] The aggregated accumulated benefit obligations of these plans were ¥1,364,786 million and ¥1,319,771 million, respectively, as of March 31, 2013 and 2014. The defined benefit plans generally employ a multi-variable and non-linear formula based upon rank and years of service. Employees with service in excess of one year are qualified to receive lump-sum severance indemnities.

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Assets and Liabilities Measured at Fair Value on Recurring Basis Including those for Which MHFG Group has Elected Fair Value Option (Parenthetical) (Detail) (JPY ¥) In Billions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments measured at NAV per share	¥ 649	¥ 715
Unfunded commitments	23	24
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments measured at NAV per share	612	667
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments measured at NAV per share	¥ 37	¥ 48

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Deposits (Tables)

12 Months Ended

Mar. 31, 2014

Deposit Liabilities Table Disclosures

The balances of time deposits and certificates of deposit issued by domestic offices in amounts of ¥10 million (approximately US$97 thousand at the Federal Reserve Bank of New York’s noon buying rate on March 31, 2014) or more and the balances of those deposits issued by foreign offices in amounts of US$100,000 or more at March 31, 2013 and 2014 are as follows:

	2013		2014
	(in millions of yen)
Domestic offices:
Time deposits		18,302,196		18,351,826
Certificates of deposit		11,393,094		8,117,512
Total		29,695,290		26,469,338
Foreign offices:
Time deposits		8,209,016		9,555,568
Certificates of deposit		3,933,688		4,638,265
Total		12,142,704		14,193,833

Interest Bearing Deposit Liabilities by Maturity Disclosures

The balance and remaining maturities of time deposits and certificates of deposit issued by domestic and foreign offices at March 31, 2014 are shown in the following table:

	Time deposits		Certificates of deposit		Total
	(in millions of yen)
Domestic offices:
Due in one year or less		24,079,640		8,115,532		32,195,172
Due after one year through two years		1,910,790		1,980		1,912,770
Due after two years through three years		1,243,980		—		1,243,980
Due after three years through four years		342,948		—		342,948
Due after four years through five years		412,261		—		412,261
Due after five years		133,735		—		133,735
Total		28,123,354		8,117,512		36,240,866
Foreign offices:
Due in one year or less		9,526,641		4,630,546		14,157,187
Due after one year through two years		20,176		7,719		27,895
Due after two years through three years		9,528		—		9,528
Due after three years through four years		1,102		—		1,102
Due after four years through five years		3,240		—		3,240
Due after five years		392		—		392
Total		9,561,079		4,638,265		14,199,344
Total		37,684,433		12,755,777		50,440,210

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Gains and Losses on Derivatives Not Designated or Qualifying as Hedges (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2012
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recorded in income	¥ (148,643)		¥ 59,446		¥ 102,939
Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recorded in income	(79,562)	[1]	219,422	[1]	261,632	[1]
Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recorded in income	(13,167)		(91,300)		(146,258)
Equity-related contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recorded in income	(41,296)	[1]	(59,421)	[1]	(7,143)	[1]
Credit-related contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recorded in income	(7,761)	[2]	(6,877)	[2]	(5,575)	[2]
Other contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recorded in income	¥ (6,857)		¥ (2,378)		¥ 283

[1] The net gain (loss) excluded from the assessment of the effectiveness of fair value hedges is not included in the above table.

[2] Amounts include the net loss of ¥3,391 million, ¥6,703 million and ¥8,660 million on the credit derivatives hedging the credit risk of loans during the fiscal years ended March 31, 2012, 2013 and 2014, respectively.

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Basis of presentation and summary of significant accounting policies (Policies)

12 Months Ended

Mar. 31, 2014

Basis of presentation

Basis of presentation

Mizuho Financial Group, Inc. (“MHFG”) is a joint stock corporation with limited liability under the laws of Japan. MHFG, through its subsidiaries (“the MHFG Group”, or “the Group”), provides domestic and international financial services in Japan and other countries. MHFG’s subsidiaries are segmented on the basis of the nature of the financial products and services. Mizuho Bank, Ltd. (“MHBK”) is a banking subsidiary and offers a wide range of financial products and services mainly in relation to deposits, lending and exchange settlement to individuals, small and medium enterprises (“SMEs”), large corporations, financial institutions, public sector entities and foreign corporations, including foreign subsidiaries of Japanese corporations. Mizuho Trust & Banking Co., Ltd. (“MHTB”) is a trust bank subsidiary and offers mainly trust-related products and consulting services. Mizuho Securities Co., Ltd. (“MHSC”) is a securities and investment banking subsidiary and offers full-line securities services to corporations, financial institutions, public sector entities and individuals. Other major subsidiaries include Trust & Custody Services Bank, Ltd. (“TCSB”), Mizuho Capital Co., Ltd., and Mizuho Business Financial Center Co., Ltd. See Note 31 “Business segment information” for further discussion of the Group’s segment information.

The accompanying consolidated financial statements have been prepared in accordance with the accounting principles generally accepted in the United States of America (“U.S. GAAP”). The consolidated financial statements are stated in Japanese yen, the currency of the country in which MHFG is incorporated and principally operates.

The accompanying consolidated financial statements include the accounts of MHFG and its subsidiaries. MHFG’s fiscal year ends on March 31 and fiscal year of certain subsidiaries ends on December 31. The necessary adjustments have been made to the consolidated financial statements if significant intercompany transactions took place during the three-months periods. When determining whether to consolidate investee entities, we performed a careful analysis of the facts and circumstances of a particular relationship among entities as well as ownership of voting shares. The consolidated financial statements also include the accounts of the VIEs for which MHFG or its subsidiaries have been determined to be the primary beneficiary under the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 810, “Consolidation” (“ASC 810”). All significant intercompany transactions and balances have been eliminated in consolidation. The MHFG Group accounts for investments in entities over which it has significant influence using the equity method of accounting. These investments are included in Other investments and the Group’s proportionate share of income or loss is included in Investment gains (losses)—net.

Use of estimates

Use of estimates

The preparation of the consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect reported amounts and related disclosures. Specific areas, among others, requiring the application of management’s estimates and judgment include assumptions pertaining to the allowance for loan losses, allowance for losses on off-balance-sheet instruments, deferred tax assets, derivative financial instruments, investments and pension and other employee benefits. Actual results could differ from estimates and assumptions made.

Definition of cash and due from banks

Definition of cash and due from banks

For purposes of the consolidated statements of cash flows, Cash and due from banks include cash on hand, cash items in the process of collection and noninterest-bearing deposits with banks.

Translation of foreign currency financial statements and foreign currency transactions

Translation of foreign currency financial statements and foreign currency transactions

Financial statements of overseas entities are prepared using the functional currency of each entity and translated into Japanese yen for consolidation purposes. Assets and liabilities are translated using the fiscal-year-end exchange rate of each functional currency, and income and expense using the average rate of each functional currency for the period.

Foreign currency translation gains and losses related to the financial statements of overseas entities of the MHFG Group, net of related income tax effects, are credited or charged directly to Foreign currency translation adjustments, a component of Accumulated other comprehensive income (loss), net of tax (“AOCI”). The tax effects of gains and losses related to the foreign currency translation of financial statements of overseas entities are not recognized unless it is apparent that the temporary differences will reverse in the foreseeable future.

Assets and liabilities denominated in foreign currencies are translated into Japanese yen at the fiscal-year-end foreign exchange rates, and gains and losses resulting from such translation are included in Foreign exchange gains (losses)—net, as appropriate. Foreign currency denominated income and expenses are translated using the average exchange rates for the period.

Call loans and call money

Call loans and call money

Call loans and call money represent lending/borrowing through the Japanese short-term money market to/from other financial institutions such as banks, insurance companies, and securities brokerage houses.

Repurchase and resale agreements, securities lending and borrowing and other secured financing transactions

Repurchase and resale agreements, securities lending and borrowing and other secured financing transactions

Securities sold under agreements to repurchase (“repurchase agreements”), securities purchased under agreements to resell (“resale agreements”) and securities lending and borrowing transactions are accounted for as secured financing or lending transactions when control over the underlying securities is not deemed to be surrendered by the transferor. Otherwise, they are recorded as sales of securities with related forward repurchase commitments or purchases of securities with related forward resale commitments in accordance with ASC 860, “Transfers and Servicing” (“ASC 860”).

Repurchase transactions where the maturity of the security transferred as collateral matches the maturity of the repurchase agreements (“repo-to-maturity transactions”) are accounted for as sales rather than collateralized financings where the criteria for derecognition of the securities transferred under ASC 860 are met. There were no such transactions accounted for as sales as of March 31, 2013 and 2014.

Under resale agreements, securities borrowing and certain derivatives transactions, the MHFG Group receives collateral in the form of securities. In many cases, the MHFG Group is permitted to sell or repledge the securities obtained as collateral. Disclosures of such collateral are presented in Note 8 “Pledged assets and collateral”. With respect to repurchase agreements, securities lending, and certain derivative transactions, counterparties may have the right to sell or repledge securities that the MHFG Group has pledged as collateral. The MHFG Group separately discloses these pledged securities in the consolidated balance sheets.

The MHFG Group monitors credit exposure arising from resale agreements, repurchase agreements, securities borrowing and securities lending transactions on a daily basis, and additional collateral is obtained from or returned to counterparties, as appropriate.

Trading securities and trading securities sold, not yet purchased

Trading securities and trading securities sold, not yet purchased

Trading securities consist of securities and money market instruments that are bought and held principally for the purpose of reselling in the near term with the objective of generating profits on short-term fluctuations in price. Trading securities sold, not yet purchased, are securities and money market instruments sold to third parties that the MHFG Group does not own and is obligated to purchase at a later date to cover the short position. Trading securities and trading securities sold, not yet purchased, are recorded on the trade date. Trading securities and trading securities sold, not yet purchased, are recorded at fair value in the consolidated balance sheets in Trading account assets and Trading account liabilities with realized and unrealized gains and losses recorded on a trade date basis in Trading account gains (losses)—net in the consolidated statements of income. Interest and dividends on trading securities, including securities sold, not yet purchased, are recorded in Interest and dividend income or Interest expense on an accrual basis.

Investments

Investments

Debt securities that the MHFG Group has both the positive intent and ability to hold to maturity are classified as Held-to-maturity securities and carried at amortized cost. Debt securities that the MHFG Group may not hold to maturity and any marketable equity securities, other than those classified as trading securities, are classified as Available-for-sale securities, and are carried at fair value, with unrealized gains and losses reported in AOCI.

The credit component of an other-than-temporary impairment of a debt security is reported in Investment gains (losses)—net and the noncredit component is reported in Other comprehensive income (loss). See Note 3 “Investments” for further discussion of impairment. Interest and dividends, as well as amortization of premiums and accretion of discounts, are reported in Interest and dividend income. Amortization of premiums and accretion of discounts on debt securities are recognized over the remaining maturity under the interest method. Gains and losses on disposition of investments are computed using the first-in first-out method for debt securities and the average method for equity securities, and are recorded on the trade date.

Other investments include marketable and non-marketable equity securities accounted for using the equity method, marketable and non-marketable investments held by consolidated investment companies carried at fair value under specialized industry accounting principles for investment companies, and other non-marketable equity securities carried at cost, less other-than-temporary impairment, if any.

Derivative financial instruments

Derivative financial instruments

Derivative financial instruments are bought and held principally for the purpose of market making for customers, proprietary trading in order to generate trading revenues and fee income, and also to manage the MHFG Group’s exposure to interest rate, credit and market risks related to asset and liability management. Such derivative financial instruments include interest rate, foreign currency, equity, commodity and credit default swap agreements, options, caps and floors, and financial futures and forward contracts.

Derivatives bought and held for trading purposes are recorded in the consolidated balance sheets at fair value in Trading account assets and Trading account liabilities. The fair value of derivatives in a gain position and a loss position are reported as Trading account assets and Trading account liabilities, respectively.

Derivatives used for asset and liability management include contracts that qualify for hedge accounting under ASC 815, “Derivatives and Hedging” (“ASC 815”). To be eligible for hedge accounting, derivative instruments must be highly effective in achieving offsetting changes in fair values or variable cash flows of the hedged items attributable to the particular risk being hedged. All qualifying hedging derivatives are valued at fair value and included in Trading account assets or Trading account liabilities. Derivatives that do not qualify for hedge accounting under ASC 815 are treated as trading positions and are accounted for as such. The fair value amounts recognized for such derivatives are not offset against the amounts recognized for the right to reclaim cash collateral or the obligation to return cash collateral under master netting agreement with the same counterparty.

The fair value of derivative financial instruments is determined based on quoted market prices or broker-dealer quotes, if available. If not, the fair value is estimated using quoted market prices for similar instruments, option or binomial pricing models or a present value cash flow analysis, utilizing current observable market information, where available. In determining the fair value, the Group considers various factors such as exchange or over-the-counter market quotes, time value of money and volatility factors for options and warrants, observed prices for similar or synthetic instruments, and counterparty credit quality including potential exposure.

Changes in the fair value of all derivatives are recorded in earnings, except for derivatives qualifying as net investment hedges under ASC 815 which are recorded in AOCI. The changes in the fair values of all derivatives relating to foreign currency exchange rates are included in Foreign exchange gains (losses)—net and Trading account gains (losses)—net. Other elements of the changes in the fair values, including interest rate, equity and credit related components except that of certain credit derivatives hedging the credit risk in the corporate loan portfolio, are recognized in Trading account gains (losses)—net. The net gain (loss) resulting from changes in the fair values of certain credit derivatives where the Group purchases protection to mitigate its credit risk exposure related to its corporate loan portfolio is recorded in Other noninterest income (expenses).

Certain financial and hybrid instruments often contain embedded derivative instruments that possess implicit or explicit contract terms similar to those of a derivative instrument. Such derivative instruments are required to be fair-valued separately from the host contracts if they meet the bifurcation criteria of an embedded derivative. Such criteria include whether the entire instrument is not marked to market through earnings, the economic characteristics and risks of the embedded contract terms are not clearly and closely related to those of the host contract and the embedded contract terms would meet the definition of a derivative on a stand-alone basis.

Loans

Loans

Loans are generally carried at the principal amount adjusted for unearned income and deferred net nonrefundable loan fees and costs. Loan origination fees, net of certain direct origination costs are deferred and recognized over the contractual life of the loan as an adjustment of yield using a method that approximates the interest method. Interest income on performing loans is accrued and credited to income as it is earned. Unearned income and discounts or premiums on purchased loans are deferred and recognized over the life of the loan using a method that approximates the interest method.

Loans are considered impaired when, based on current information and events, it is probable that the MHFG Group will be unable to collect all the scheduled payments of principal and interest when due according to the contractual terms of the loan. Factors considered by management in determining if a loan is impaired include delinquency status and the ability of the debtor to make payment of the principal and interest when due. Impaired loans include loans past due for 90 days or more and restructured loans that meet the definition of troubled debt restructuring (“TDR”) in accordance with ASC 310 “Receivables” (“ASC 310”).

All of the MHFG Group’s impaired loans are designated as nonaccrual loans and thus interest accrual and amortization of net origination fees are suspended and capitalized interest is written off. Cash received on nonaccrual loans is accounted for as reduction of the loan principal if the ultimate collectibility of the principal amount is uncertain, otherwise, as interest income. Loans are not restored to accrual status until interest and principal payments are current and future payments are reasonably assured. Impaired loans return to non-impaired loans and accrual status, when the MHFG Group determines that the borrower poses no problems regarding current certainty of debt fulfillment. In general, such determination is made if the borrower qualifies for an obligor rating of E2 or above and is not classified as a special attention obligor. With respect to loans restructured in TDR, in general, such loans return to non-impaired loans, and accrual status, when the borrower qualifies for an obligor rating of D or above. See Note 4 “Loans” for the definitions of obligor ratings.

Loans that have been identified to be sold are classified as loans held for sale within Other assets and are accounted for at the lower of cost or fair value on an individual loan basis. If management decides to retain certain loans held for sale for the foreseeable future or until maturity or payoff, such items are transferred to Loans at the lower of cost or fair value.

Securitization

Securitization

The MHFG Group engages in securitization activities related to mortgage loans and other loans in the normal course of business. The MHFG Group records a loan securitization as a sale when the transferred loans are legally isolated from the Group’s creditors and the accounting criteria for a sale are met in accordance with ASC 860. Otherwise, the transfer is accounted for as a collateralized borrowing.

Allowance and provision (credit) for loan losses

Allowance and provision (credit) for loan losses

The MHFG Group maintains an appropriate amount of allowance for loan losses to absorb probable losses inherent in the loan portfolio and makes adjustments to such allowance through the Provision (credit) for loan losses in the consolidated statements of income. Loan principal that management judges to be uncollectible, based on detailed loan reviews and a credit quality assessment, is charged off against the allowance for loan losses. In general, the MHFG Group charges off loans when the Group determines that the debtor should be classified as substantially bankrupt or bankrupt. See Note 4 “Loans” for the definitions of obligor categories. Obligors classified in the retail portfolio segment are generally determined to be substantially bankrupt when they are past due for more than six months, and as for other obligors, the Group separately monitors the credit quality of each obligor without using time-based triggers. Subsequent recoveries of previously charged-off loan balances are recorded as an increase to the allowance for loan losses as the recoveries are received.

The credit quality review process and the credit rating process serve as the basis for determining the allowance for loan losses. Through such processes loans are categorized into groups to reflect the probability of default, whereby the MHFG Group’s management assesses the ability of borrowers to service their debt, taking into consideration current financial information, ability to generate cash, historical payment experience, analysis of relevant industry segments and current trends. In determining the appropriate level of the allowance, the MHFG Group evaluates the probable loss by category of loan based on its risk type and characteristics.

The allowance for loan losses is determined in accordance with ASC 310 and ASC 450, “Contingencies” (“ASC 450”). The MHFG Group measures the impairment of a loan when it is probable that the Group will be unable to collect all amounts due according to the contractual terms of the loan agreement, based on (1) the present value of expected future cash flows, after considering the restructuring effect and subsequent payment default with respect to TDRs, discounted at the loan’s initial effective interest rate, (2) the loan’s observable market price, or (3) the fair value of the collateral if the loan is collateral dependent. The collateral that the Group obtains for loans consists primarily of real estate or listed securities. In obtaining the collateral, the Group evaluates the fair value of the collateral and its legal enforceability. The Group also conducts subsequent re-evaluations at least once a year. As it pertains to real estate, valuation is generally conducted by an appraising subsidiary which is independent from the Group’s loan origination sections by using generally accepted valuation techniques such as (1) the replacement cost approach, (2) the sales comparison approach or (3) the income approach. In the case of large real estate collateral, the Group generally retains third-party appraisers to conduct the valuation. As to listed securities, observable market prices are used for valuation.

The formula allowance is applied to groups of small balance, homogeneous loans that are collectively evaluated for impairment and for non-homogeneous loans that have not been identified as impaired. The evaluation of inherent loss in respect of these loans involves a high degree of uncertainty, subjectivity and judgment because probable loan losses are not easily identifiable or measurable. In determining the formula allowance, the MHFG Group relies on a statistical analysis that incorporates loss rates based on its own historical loss experience and third party data such as the number of corporate default cases which is updated once a year. In determining the allowance amount, the Group analyzes (1) the probability of default: (a) through the most recently available data for the past six years, in the case of normal obligors; and (b) through the most recently available data since April 2002, in the case of watch obligors; and (2) the loss given default through the most recently available data for the past six years. As it pertains to TDR loans in the retail portfolio segment, which are subject to collective evaluation for impairment, the restructuring itself, as well as subsequent payment default, if any, are considered in determining obligor ratings.

The historical loss rate is adjusted, where appropriate, to reflect current factors, such as general economic and business conditions affecting the key lending areas of the MHFG Group, credit quality trends, specific industry conditions within portfolio segments, and recent loss experience in particular segments of the portfolio. The estimation of the formula allowance is back-tested on a periodic basis by comparing the allowance with the actual results subsequent to the balance sheet date.

Allowance and provision (credit) for losses on off-balance-sheet instruments

Allowance and provision (credit) for losses on off-balance-sheet instruments

The MHFG Group maintains an allowance for losses on off-balance-sheet credit instruments, such as guarantees, standby letters of credit, commitments to invest in securities and commitments to extend credit, in the same manner as the allowance for loan losses. The allowance is recorded in Other liabilities. Net changes in the allowance for losses on off-balance-sheet instruments are accounted for in the Provision (credit) for losses on off-balance-sheet instruments in the consolidated statements of income.

Premises and equipment

Premises and equipment

Premises and equipment are stated at historical cost, and depreciation and amortization are recorded over the estimated useful lives of the assets, except for leasehold improvements, which are amortized over the shorter of the estimated useful lives of the assets or the lease term. Depreciation and amortization are principally computed in accordance with the straight-line method with respect to buildings and leasehold improvements and in accordance with the declining-balance method with respect to other premises and equipment.

The useful lives of premises and equipment are as follows:

	Years
Buildings		3 to 50
Equipment and furniture		2 to 20
Leasehold improvements		2 to 50

Regular repairs and maintenance costs that do not extend the estimated useful life of an asset are charged to expense as incurred. Upon sale or disposition of premises and equipment, the cost and related accumulated depreciation or amortization are removed from the accounts, and any gains or losses on disposal are included in Gains on disposal of premises and equipment or Occupancy expenses.

Impairment of long-lived assets

Impairment of long-lived assets

The MHFG Group’s long-lived assets that are held for use are reviewed periodically for events or changes in circumstances that indicate possible impairment. The Group’s impairment review is based on an undiscounted cash flow analysis of a group of assets, combined with associated liabilities, at the lowest level for which identifiable cash flows exist. Impairment occurs when the carrying value of the asset group exceeds the future undiscounted cash flows that the asset group is expected to generate. When impairment is identified, the future cash flows are then discounted to determine the estimated fair value of the asset group and an impairment charge is recorded for the difference between the carrying value and the estimated fair value of the asset group. The long-lived assets to be disposed of by sale are carried at the lower of the carrying amount or fair value, less estimated cost to sell.

Software

Software

Internal and external costs incurred in connection with developing and obtaining software for internal use that occur during the application development stage are capitalized. Such costs include salaries and benefits for employees directly involved with and who devote time to the project, to the extent such time is incurred directly on the internal use software project. The capitalization of software ceases when the software project has been substantially completed. The capitalized software is amortized on a straight-line basis over the estimated useful life, generally 5 to 10 years. Internal use software is reviewed for impairment when triggering events occur.

Goodwill

Goodwill

Goodwill represents the excess of the total fair value of the acquired company, which consists of the consideration transferred, the fair value of any interest in the acquiree already held by the acquirer and the fair value of any noncontrolling interest in the acquiree over the fair value of net identifiable assets acquired at the date of acquisition in a business combination. The MHFG Group accounts for goodwill in accordance with ASC 350, “Intangibles—Goodwill and Other” (“ASC 350”). Goodwill is recorded at a designated reporting unit level for the purpose of assessing impairment. An impairment loss is recorded to the extent the carrying amount of goodwill exceeds its estimated fair value.

Intangible assets

Intangible assets

Intangible assets having definite useful lives are amortized over their estimated useful lives on either a straight-line basis or the method that reflects the pattern in which the economic benefits of the intangible assets are consumed. Intangible assets acquired by the merger of MHSC and Shinko Securities Co., Ltd. (“Shinko”) consist primarily of customer relationship intangibles, and are amortized over a weighted-average amortization period of 16 years. Intangible assets having indefinite useful lives are not amortized and are subject to impairment tests. An impairment loss is recorded to the extent the carrying amount of indefinite-lived intangible asset exceeds its estimated fair value. For intangible assets subject to amortization, an impairment loss is recorded if the carrying amount is not recoverable and exceeds its estimated fair value.

Pension and other employee benefits

Pension and other employee benefits

MHFG and certain subsidiaries sponsor severance indemnities and pension plans, which provide defined benefits to retired employees. Periodic expense and accrued liabilities are computed based on the actuarial present value of benefits, net of investment returns expected from plan assets and their fair values at the balance sheet date. Net periodic expense is charged to Salaries and employee benefits.

Stock-based compensation

Stock-based compensation

The compensation cost associated with stock compensation-type stock options is measured at fair value using the Black-Scholes option pricing model.

Long-term debt

Long-term debt

Premiums, discounts and issuance costs of long-term debt are amortized based on a method that approximates the interest method over the respective terms of the long-term debt.

Obligations under guarantees

Obligations under guarantees

The MHFG Group provides customers with a variety of guarantees and similar arrangements, including standby letters of credit, financial and performance guarantees, credit protections, and liquidity facilities. The MHFG Group recognizes guarantee fee income over the guarantee period. The MHFG Group receives such a guarantee fee at the inception of the guarantee or in installments and, in either case, the present value of the total fees approximates the fair value of the guarantee.

Fair Value Measurements

Fair Value Measurements

The MHFG Group carries certain of its financial assets and liabilities at fair value on a recurring basis. These financial assets and liabilities are primarily composed of trading account assets, trading account liabilities and available-for-sale securities. In addition, the Group measures certain financial assets and liabilities, at fair value on a non-recurring basis. Those assets and liabilities primarily include items that are measured at the lower of cost or fair value such as loans held for sale, and items that were initially measured at cost and have been written down to fair value due to impairments, such as loans and other investments.

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. In accordance with ASC 820, “Fair Value Measurement” (“ASC 820”), the Group classifies its financial assets and liabilities into the fair value hierarchy (Level 1, 2, and 3). See Note 28 “Fair value” for the detailed definition of each level.

When determining fair value, the MHFG Group considers the principal or most advantageous market in which the Group would transact and considers assumptions that market participants would use when pricing the asset or liability. The Group maximizes the use of observable inputs and minimizes the use of unobservable inputs when measuring fair value. See Note 28 “Fair value” for descriptions of valuation methodologies used for its assets and liabilities by product.

Fees and commissions

Fees and commissions

Fee revenue is recognized when all of the following criteria have been met: persuasive evidence of an agreement exists, services have been rendered, the price is fixed or determinable, and collectibility is reasonably assured. Fees on securities-related business and fees on funds transfer and collection services are generally recognized as revenue when the related services are performed. Fees on credit-related business, excluding loan origination fees to be deferred and recognized over the loan period as an adjustment of yield, are generally recognized either at one time when the service is rendered or over the related transaction period. Fees and commissions are presented on a gross basis and exclusive of consumption taxes.

Income taxes

Income taxes

Income taxes are accounted for in accordance with ASC 740, “Income Taxes” (“ASC 740”). Deferred income taxes reflect the net tax effects of (1) temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the corresponding amounts used for income tax purposes, and (2) operating loss and tax credit carryforwards. A valuation allowance is recorded for any portion of the deferred tax assets unless it is more likely than not that the deferred tax assets will be realized. Deferred income tax benefit or expense is recognized for the changes in the net deferred tax asset or liability between periods.

Earnings per common share

Earnings per common share

Basic earnings per common share are computed by dividing net income attributable to MHFG common shareholders by the weighted average number of common shares outstanding during the fiscal year. Diluted earnings per common share reflect the possible exercise of all convertible securities, such as convertible preferred stock to the extent they are not anti-dilutive. See Note 18 “Earnings per common share” for the computation of basic and diluted earnings per common share.

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Fair Value - Additional Information (Detail) (JPY ¥) In Billions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Carrying amounts of other equity interests of which fair value is not readily determinable	¥ 526	¥ 537
Derivative liabilities
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Fair value of liabilities transferred into Level 3	1	1
Fair value of liabilities transferred out of Level 3	1
Long-term debt
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Fair value of liabilities transferred into Level 3	1	4
Fair value of liabilities transferred out of Level 3	1	175
Trading securities sold, not yet purchased
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Fair value of liabilities transferred out of Level 3		1
Trading securities
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Fair value of assets transferred from Level 1 to Level 2		37
Fair value of assets transferred into Level 3	4	17
Fair value of assets transferred out of Level 3	12	11
Derivative assets
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Fair value of assets transferred out of Level 3		21
Available-for-sale securities
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Fair value of assets transferred into Level 3	7
Fair value of assets transferred out of Level 3	30
Other investments
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
Fair value of assets transferred out of Level 3	2
Structured notes
Fair Value, Estimate Not Practicable, Financial Statement Captions [Line Items]
The differences between the aggregate fair value and aggregate unpaid principal balance of the notes for which the fair value option has been elected	14	9
Net unrealized gains (losses) resulting from changes in fair values of the notes	¥ 4	¥ (30)

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Amortized Cost Gross Unrealized Gains and Losses and Fair Value of Available-for-Sale and Held-to-Maturity Securities (Parenthetical) (Detail) In Millions, unless otherwise specified	Mar. 31, 2014 JPY (¥)	Mar. 31, 2013 JPY (¥)	Mar. 31, 2014 Debt securities Agency mortgage-backed securities JPY (¥)		Mar. 31, 2013 Debt securities Agency mortgage-backed securities JPY (¥)		Mar. 31, 2014 Debt securities Agency mortgage-backed securities U.S. agency securities JPY (¥)	Mar. 31, 2013 Debt securities Agency mortgage-backed securities U.S. agency securities JPY (¥)	Mar. 31, 2014 Debt securities Agency mortgage-backed securities Japanese agency securities JPY (¥)	Mar. 31, 2013 Debt securities Agency mortgage-backed securities Japanese agency securities JPY (¥)	Mar. 31, 2014 Other debt securities Certificates of deposit ("CDs") and Asset-Backed Securities ("ABS") USD ($)	Mar. 31, 2013 Other debt securities Certificates of deposit ("CDs") and Asset-Backed Securities ("ABS") USD ($)	Mar. 31, 2014 Other debt securities CDs, ABS, and collateral loan obligations ("CLO") JPY (¥)	Mar. 31, 2013 Other debt securities CDs, ABS, and collateral loan obligations ("CLO") JPY (¥)
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Fair value, available-for-sale securities	¥ 30,648,761	¥ 39,413,951	¥ 960,874	[1]	¥ 1,005,713	[1]	¥ 105,553	¥ 143,954	¥ 855,321	¥ 861,759	$ 214,488	$ 185,497	¥ 178,055	¥ 243,633

[1] Agency mortgage-backed securities presented in the above table consist of U.S. agency securities and Japanese agency securities, of which the fair values were ¥143,954 million and ¥861,759 million, respectively, at March 31, 2013, and ¥105,553 million and ¥855,321 million, respectively, at March 31, 2014. U.S. agency securities primarily consist of Government National Mortgage Association or Ginnie Mae securities, which are guaranteed by the United States government. All Japanese agency securities are mortgage-backed securities issued by Japan Housing Finance Agency, a Japanese government-sponsored enterprise.

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Amounts Pledged as Collateral for Borrowings and for Other Purposes (Detail) (JPY ¥) In Billions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Financial Instruments Owned and Pledged as Collateral [Line Items]
Interest-bearing deposits in other banks	¥ 38	¥ 28
Trading account assets	10,271	13,752
Available-for-sale securities	13,353	15,939
Loans	8,796	8,860
Other assets	677	900
Total	¥ 33,135	¥ 39,479

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Related party transactions

12 Months Ended

Mar. 31, 2014

Related party transactions

30. Related party transactions

Transactions with directors, executive officers, and their associates

The banking subsidiaries of MHFG make loans to the MHFG Group’s directors, executive officers, and their associates in their ordinary course of business. At March 31, 2013 and 2014, outstanding loans to such related parties were not considered significant. These related party loans were made on substantially the same terms, including interest rate and collateral, as those prevailing at the same time for comparable transactions with unrelated parties. At March 31, 2013 and 2014, there were no loans to these related parties that were considered impaired.

Other transactions, such as deposits, were entered into between MHFG’s subsidiaries and the MHFG Group’s directors, executive officers, and their associates during the fiscal years ended March 31, 2012, 2013 and 2014. The outstanding amounts of these transactions, which were made in the ordinary course of business with terms equivalent to those with unrelated parties, were not considered significant.

Transactions with other related parties

A number of transactions were entered into with other related parties, such as MHFG’s employees and affiliates accounted for under the equity method. These transactions included loans, deposits, and other banking services. They were not significant in amount and were conducted with substantially the same terms as those for comparable transactions with unrelated parties.

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Other assets and liabilities (Tables)

12 Months Ended

Mar. 31, 2014

Schedule of Other Assets and Other Liabilities

The following table sets forth the details of other assets and liabilities at March 31, 2013 and 2014:

	2013		2014
	(in millions of yen)
Other assets:
Accounts receivable from brokers, dealers and customers for securities transactions		907,671		1,122,247
Collateral provided for derivative transactions		742,307		466,420
Prepaid pension cost		153,414		403,654
Miscellaneous receivables		120,322		315,037
Margins provided for futures contracts		99,844		147,376
Security deposits		102,031		121,675
Loans held for sale		9,820		58,745
Other		466,542		563,841
Total		2,601,951		3,198,995
Other liabilities:
Accounts payable to brokers, dealers and customers for securities transactions		1,560,345		1,325,455
Guaranteed trust principal		535,720		591,647
Miscellaneous payables		260,665		473,028
Collateral accepted for derivative transactions		503,101		432,820
Factoring amounts owed to customers		375,933		382,189
Margins accepted for futures contracts		199,930		289,381
Unearned income		141,189		141,735
Other		791,243		785,768
Total		4,368,126		4,422,023

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Offsetting of financial assets and financial liabilities (Tables)

12 Months Ended

Mar. 31, 2014

Information of Offsetting of Financial Assets and Financial Liabilities

The following tables provide information about the offsetting of financial assets and financial liabilities at March 31, 2013 and 2014. The tables include derivatives, repurchase and resale agreements, and securities lending and borrowing transactions that are subject to enforceable master netting arrangements or similar agreements irrespective of whether or not they are offset on the Group’s consolidated balance sheets.

							Amounts not offset on the balance sheet(3)
	Gross amounts recognized		Gross amounts offset on the balance sheet		Net amounts presented on the balance sheet(2)		Financial instruments(4)		Cash collateral		Net amounts
	(in billions of yen)
2013
Assets (1):
Derivatives		13,019		—		13,019		11,289		446		1,284
Receivables under resale agreements		8,869		—		8,869		8,812		—		57
Receivables under securities borrowing transactions		5,544		—		5,544		5,534		—		10
Total		27,432		—		27,432		25,635		446		1,351
Liabilities (1):
Derivatives		12,712		—		12,712		11,234		653		825
Payables under repurchase agreements		17,397		—		17,397		17,280		—		117
Payables under securities lending transactions		11,326		—		11,326		11,320		—		6
Total		41,435		—		41,435		39,834		653		948
2014
Assets (1):
Derivatives		9,880		—		9,880		8,702		406		772
Receivables under resale agreements		8,236		—		8,236		8,200		—		36
Receivables under securities borrowing transactions		4,990		—		4,990		4,978		—		12
Total		23,106		—		23,106		21,880		406		820
Liabilities (1):
Derivatives		9,648		—		9,648		8,621		431		596
Payables under repurchase agreements		16,690		—		16,690		16,667		—		23
Payables under securities lending transactions		6,085		—		6,085		6,082		—		3
Total		32,423		—		32,423		31,370		431		622

Notes:

(1) Amounts relating to master netting arrangements or similar agreements where the Group does not have the legal right of set-off or where uncertainty exists as to the enforceability of these agreements are excluded. For derivatives, the table includes amounts relating to over-the-counter (“OTC”) and OTC-cleared derivatives that are subject to enforceable master netting arrangements or similar agreements.

(2) Derivative assets and liabilities are recorded in Trading account assets and Trading account liabilities, respectively.

(3) Amounts do not exceed the net amounts presented on the balance sheet and do not include the effect of overcollateralization, where it exists.

(4) For derivatives, amounts include derivative assets or liabilities and securities collateral that are eligible for offsetting under enforceable master netting arrangements or similar agreements.

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Notional and Fair Value Amounts of Credit Derivatives (Detail) (JPY ¥) In Billions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Credit protection written
Credit Derivatives [Line Items]
Notional amount	¥ 2,202	¥ 2,462
Fair value	24	2
Credit protection written | Investment grade
Credit Derivatives [Line Items]
Notional amount	1,723	1,810
Fair value	21	1
Credit protection written | Non-investment grade
Credit Derivatives [Line Items]
Notional amount	479	652
Fair value	3	1
Credit protection purchased
Credit Derivatives [Line Items]
Notional amount	2,548	2,870
Fair value	¥ (9)	¥ 13

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Material Terms and Conditions Conversion of Eleventh Series Class XI Preferred Stock (Detail) (Eleventh series class XI preferred stock)	12 Months Ended
	Mar. 31, 2014
Class of Stock [Line Items]
Conversion ratio	¥1,000/(conversion price), where the conversion price after adjustment is ¥282.90 on or after August 30, 2011; to be reset on July 1, 2014 and 2015 (each, a "Reset Date") as ¥1,000/(conversion price), where the conversion price is the lower of (x) the average price of daily closing prices (including closing bid or offered price) of common stock as reported by the Tokyo Stock Exchange ("TSE") for the 30 consecutive trading days (excluding trading days on which no closing price, closing bid or offered price is reported) commencing on the 45th trading day prior to the Reset Date and (y) the conversion price after adjustment effective as of the day before the relevant Reset Date, provided that the conversion price shall not be less than ¥282.90.	[1]
Minimum
Class of Stock [Line Items]
Conversion period	Jul. 01, 2008
Maximum
Class of Stock [Line Items]
Conversion period	Jun. 30, 2016

[1] Subject to adjustment, where issuance or disposal by MHFG of common stock for a price below the "current market price", a stock split, issuance of securities convertible into common stock at a price below the "current market price" at the time of issuance thereof or determination of the conversion price thereof, merger or amalgamation, or a capital decrease or stock consolidation occurs and in certain other circumstances.

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Notional and Fair Value Amounts of Derivative Instruments Outstanding (Detail) (JPY ¥) In Billions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Derivatives, Fair Value [Line Items]
Notional amount	¥ 1,099,907	[1]	¥ 982,613	[1]
Interest rate contracts
Derivatives, Fair Value [Line Items]
Notional amount	971,939	[1]	854,698	[1]
Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Notional amount	119,864	[1]	118,708	[1]
Equity-related contracts
Derivatives, Fair Value [Line Items]
Notional amount	2,979	[1]	3,419	[1]
Credit-related contracts
Derivatives, Fair Value [Line Items]
Notional amount	4,662	[1]	5,266	[1]
Other contracts
Derivatives, Fair Value [Line Items]
Notional amount	463	[1]	522	[1]
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Fair value of derivative receivables	1	[2]
Fair value of derivative payables	2	[2]	10	[2]
Designated as Hedging Instrument | Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative payables	2	[2]	10	[2]
Designated as Hedging Instrument | Equity-related contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative receivables	1	[2]
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Fair value of derivative receivables	10,686	[2]	13,728	[2]
Fair value of derivative payables	10,473	[2]	13,239	[2]
Not Designated as Hedging Instrument | Interest rate contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative receivables	8,064	[2]	10,350	[2]
Fair value of derivative payables	7,895	[2]	10,018	[2]
Not Designated as Hedging Instrument | Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative receivables	2,354	[2]	3,099	[2]
Fair value of derivative payables	2,349	[2]	2,973	[2]
Not Designated as Hedging Instrument | Equity-related contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative receivables	196	[2]	182	[2]
Fair value of derivative payables	178	[2]	177	[2]
Not Designated as Hedging Instrument | Credit-related contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative receivables	49	[2]	59	[2]
Fair value of derivative payables	34	[2]	44	[2]
Not Designated as Hedging Instrument | Other contracts
Derivatives, Fair Value [Line Items]
Fair value of derivative receivables	23	[2]	38	[2]
Fair value of derivative payables	¥ 17	[2]	¥ 27	[2]

[1] Notional amount represents the sum of gross long and gross short third-party contracts.

[2] Derivative receivables and payables are recorded in Trading account assets and Trading account liabilities, respectively.

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Derivative financial instruments (Tables)

12 Months Ended

Mar. 31, 2014

Schedule of Derivative Instruments

The following table summarizes the notional and fair value amounts of derivative instruments outstanding as of March 31, 2013 and 2014. The fair values of derivatives are presented on a gross basis and not offset against the right to reclaim cash collateral or the obligation to return cash collateral under master netting agreements in the consolidated balance sheets, or the table below.

			Fair value
			Derivative receivables (2)				Derivative payables (2)
2013	Notional amount (1)		Designated as hedges		Not designated as hedges		Designated as hedges		Not designated as hedges
	(in billions of yen)
Interest rate contracts		854,698		—		10,350		—		10,018
Foreign exchange contracts		118,708		—		3,099		10		2,973
Equity-related contracts		3,419		—		182		—		177
Credit-related contracts		5,266		—		59		—		44
Other contracts		522		—		38		—		27
Total		982,613		—		13,728		10		13,239

			Fair value
			Derivative receivables (2)				Derivative payables (2)
2014	Notional amount (1)		Designated as hedges		Not designated as hedges		Designated as hedges		Not designated as hedges
	(in billions of yen)
Interest rate contracts		971,939		—		8,064		—		7,895
Foreign exchange contracts		119,864		—		2,354		2		2,349
Equity-related contracts		2,979		1		196		—		178
Credit-related contracts		4,662		—		49		—		34
Other contracts		463		—		23		—		17
Total		1,099,907		1		10,686		2		10,473

Notes:

(1) Notional amount represents the sum of gross long and gross short third-party contracts.

(2) Derivative receivables and payables are recorded in Trading account assets and Trading account liabilities, respectively.

Schedule of Net Investment Hedges, Statements of Financial Performance and Financial Position, Location

The following table summarizes gains and losses information related to net investment hedges for the fiscal years ended March 31, 2012, 2013 and 2014:

	Gains (losses) recorded in income and other comprehensive income (“OCI”)
	2012				2013						2014
	Effective portion recorded in OCI		Ineffective portion recorded in income		Effective portion recorded in OCI			Ineffective portion recorded in income			Effective portion recorded in OCI			Ineffective portion recorded in income
	(in millions of yen)
Financial instruments hedging foreign exchange risk		8,024		1,666		(65,851	)		(2,908	)		(102,150	)		(7,316	)
Total		8,024		1,666		(65,851	)		(2,908	)		(102,150	)		(7,316	)

Note: Related to the effective portion of net investment hedges, Accumulated other comprehensive income of ¥1,893 million and ¥13,858 million were reclassified to earnings for the fiscal years ended March 31, 2012 and 2013 respectively. No amount related to the effective portion of net investment hedges was reclassified from Accumulated other comprehensive income (loss) to earnings for the fiscal year ended March 31, 2014.

Disclosure of Credit Derivatives

The following table summarizes the notional and fair value amounts of credit derivatives at March 31, 2013 and 2014:

	2013				2014
	Notional amount		Fair value		Notional amount		Fair value
	(in billions of yen)
Credit protection written:
Investment grade		1,810		1		1,723		21
Non-investment grade		652		1		479		3
Total		2,462		2		2,202		24
Credit protection purchased		2,870		13		2,548		(9	)

Note: The rating scale is based upon either the external ratings or the internal ratings of the underlying reference credit. The lowest investment grade rating is considered to be BBB^- or the corresponding internal rating, while anything below or unrated is considered to be non-investment grade. Non-investment grade credit derivatives primarily consist of unrated credit default swap indices such as CDX and iTraxx.

Notional And Credit Risk Amounts Of Outstanding Derivative Positions Disclosure

The following table shows the maximum potential amount of future payments for credit protection written by expiration period at March 31, 2013 and 2014:

	Maximum payout/Notional amount
	2013		2014
	(in billions of yen)
One year or less		620		325
After one year through five years		1,720		1,791
After five years		122		86
Total		2,462		2,202

Note: The maximum potential amount of future payments is the aggregate notional amount of the credit derivatives where the Group wrote the credit protection, and it has not been reduced by the Group’s right of collection over the underlying assets and the related cash flows, nor netted against that of credit protection purchased.

Fair Value Hedging

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance

The following table summarizes gains and losses information related to fair value hedges for the fiscal years ended March 31, 2012, 2013 and 2014:

	Gains (losses) recorded in income
2012	Derivatives			Hedged items		Hedge ineffectiveness		Net gain (loss) excluded from assessment of effectiveness
	(in millions of yen)
Interest rate contracts		(214	)		150		—		(64	)
Equity-related contracts		(285	)		278		—		(7	)
Total		(499	)		428		—		(71	)

	Gains (losses) recorded in income
2013	Derivatives		Hedged items			Hedge ineffectiveness		Net gain (loss) excluded from assessment of effectiveness
	(in millions of yen)
Interest rate contracts		44		(81	)		—		(37	)
Equity-related contracts		352		(394	)		—		(42	)
Total		396		(475	)		—		(79	)

	Gains (losses) recorded in income
2014	Derivatives		Hedged items			Hedge ineffectiveness		Net gain (loss) excluded from assessment of effectiveness
	(in millions of yen)
Equity-related contracts		801		(1,112	)		—		(311	)
Total		801		(1,112	)		—		(311	)

Not Designated as Hedging Instrument

Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance

The following table summarizes gains and losses on derivatives not designated or qualifying as hedges during the fiscal years ended March 31, 2012, 2013 and 2014:

	Gains (losses) recorded in income
	2012			2013			2014
	(in millions of yen)
Interest rate contracts (1)		261,632			219,422			(79,562	)
Foreign exchange contracts		(146,258	)		(91,300	)		(13,167	)
Equity-related contracts (1)		(7,143	)		(59,421	)		(41,296	)
Credit-related contracts (2)		(5,575	)		(6,877	)		(7,761	)
Other contracts		283			(2,378	)		(6,857	)
Total		102,939			59,446			(148,643	)

Notes:

(1) The net gain (loss) excluded from the assessment of the effectiveness of fair value hedges is not included in the above table.

(2) Amounts include the net loss of ¥3,391 million, ¥6,703 million and ¥8,660 million on the credit derivatives hedging the credit risk of loans during the fiscal years ended March 31, 2012, 2013 and 2014, respectively.

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Premises and equipment (Tables)

12 Months Ended

Mar. 31, 2014

Property, Plant and Equipment

Premises and equipment at March 31, 2013 and 2014 consist of the following:

	2013		2014
	(in millions of yen)
Land		268,948		410,739
Buildings		743,473		800,680
Equipment and furniture		418,647		435,655
Leasehold improvements		90,306		92,052
Construction in progress		23,875		35,789
Software		657,702		725,287
Total		2,202,951		2,500,202
Less: Accumulated depreciation and amortization		1,110,962		1,143,608
Premises and equipment—net		1,091,989		1,356,594

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Variable Interest Entities and Securitizations - Additional Information (Detail) (JPY ¥) In Billions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Assets associated with securitization transactions
Variable Interest Entity [Line Items]
Transferred assets continue to be carried on the consolidated balance sheets	¥ 181	¥ 174
Assets associated with loan participation transactions
Variable Interest Entity [Line Items]
Transferred assets continue to be carried on the consolidated balance sheets	¥ 79	¥ 62

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Recently issued accounting pronouncements

12 Months Ended

Mar. 31, 2014

Recently issued accounting pronouncements

2. Recently issued accounting pronouncements

Recently adopted accounting pronouncements

On July 1, 2009, the ASC was officially launched. The ASC, which reorganized the thousands of U.S. GAAP pronouncements into roughly 90 accounting topics, is the single source of authoritative U.S. GAAP for nongovernmental entities.

In January 2010, the FASB issued Accounting Standards Update (“ASU”) No.2010-06, “Fair Value Measurements and Disclosures (Topic 820)—Improving Disclosures about Fair Value Measurements” (“ASU No.2010-06”). The ASU provides amendments to ASC 820 that require new disclosures regarding (1) transfers in and out of Levels 1 and 2 and (2) more detailed activity in Level 3. The ASU also provides amendments to ASC 820 that clarify existing disclosures regarding (1) level of disaggregation and (2) inputs and valuation techniques. The ASU is effective for interim and annual reporting periods beginning after December 15, 2009, except for the new disclosures related to the activity in Level 3, which do not become effective until fiscal years beginning after December 15, 2010, and for interim periods within those fiscal years. ASU No.2010-06 is an accounting principle which expands disclosure requirements, and had no impact on the MHFG Group’s consolidated results of operations or financial condition.

In July 2010, the FASB issued ASU No.2010-20, “Receivables (Topic 310)—Disclosures about the Credit Quality of Financing Receivables and the Allowance for Credit Losses” (“ASU No.2010-20”). The ASU requires disclosures that facilitate financial statement users’ evaluation of (1) the nature of credit risk inherent in the entity’s portfolio of financing receivables, (2) how that risk is analyzed and assessed in arriving at the allowance for credit losses and (3) the changes and reasons for those changes in the allowance for credit losses. The new disclosures required include (1) aging of past due receivables, (2) credit quality indicators, and (3) modifications of financing receivables. It is also required that certain existing disclosures should be provided on a disaggregated basis. The disclosures as of the end of a reporting period are effective for interim and annual reporting periods ending on or after December 15, 2010, whereas the disclosures about activity that occurs during a reporting period are effective for interim and annual reporting periods beginning on or after December 15, 2010. In January 2011, the FASB issued ASU No.2011-01, “Receivables (Topic310)—Deferral of the Effective Date of Disclosures about Troubled Debt Restructurings in Update No.2010-20” (“ASU No.2011-01”) to delay the effective date of the disclosures about troubled debt restructurings for public entities, and in April 2011, it was provided that such disclosure requirements would be effective for interim and annual periods beginning on or after June 15, 2011 in ASU No.2011-02, “Receivables (Topic310)—A Creditor’s Determination of Whether a Restructuring Is a Troubled Debt Restructuring” (“ASU No.2011-02”). ASU No.2011-02 also clarifies the guidance on a creditor’s evaluation for troubled debt restructurings of whether it has granted a concession and whether a debtor is experiencing financial difficulties. ASU No.2010-20 is an accounting principle which expands disclosure requirements, and had no impact on the MHFG Group’s consolidated results of operations or financial condition.

In December 2010, the FASB issued ASU No.2010-28, “Intangibles—Goodwill and Other (Topic 350)—When to Perform Step 2 of the Goodwill Impairment Test for Reporting Units with Zero or Negative Carrying Amounts” (“ASU No.2010-28”). The ASU requires that Step 2 of the impairment test should be performed in circumstances where the carrying amount of a reporting unit is zero or negative and there are qualitative factors that indicate it is more likely than not that a goodwill impairment exists. The ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2010. The adoption of ASU No.2010-28 did not have a material impact on the MHFG Group’s consolidated results of operations or financial condition.

In December 2010, the FASB issued ASU No.2010-29, “Business Combinations (Topic 805)—Disclosure of Supplementary Pro Forma Information for Business Combinations” (“ASU No.2010-29”). The ASU clarifies that, if a reporting entity presents comparative financial statements, the pro forma revenue and earnings of the combined entity should be reported as though the business combinations that occurred during the current year had occurred as of the beginning of the comparable prior annual reporting period only. The ASU is effective prospectively for business combinations for which the acquisition date is on or after the beginning of the first annual reporting period beginning on or after December 15, 2010. ASU No.2010-29 is an accounting principle which clarifies disclosure requirements, and had no impact on the MHFG Group’s consolidated results of operations or financial condition.

In April 2011, the FASB issued ASU No.2011-03, “Transfers and Servicing (Topic 860)—Reconsideration of Effective Control for Repurchase Agreements” (“ASU No.2011-03”). The ASU amends the conditions to determine whether a transferor in repurchase agreements (repos) and other similar agreements maintains effective control over the financial assets transferred by removing from the assessment of effective control (1) the criterion requiring the transferor to have the ability to repurchase or redeem the financial assets on substantially the agreed terms, even in the event of default by the transferee, and (2) the collateral maintenance implementation guidance related to that criterion. The ASU is effective for the first interim or annual period beginning on or after December 15, 2011, and should be applied prospectively to transactions or modifications of existing transactions that occur on or after the effective date. The adoption of ASU No.2011-03 did not have a material impact on the MHFG Group’s consolidated results of operations or financial condition.

In May 2011, the FASB issued ASU No. 2011-04, “Fair Value Measurement (Topic 820)—Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs” (“ASU No.2011-04”) in order to improve comparability of fair value measurements presented and disclosed in financial statements prepared in accordance with U.S. GAAP and International Financial Reporting Standards (“IFRS”). The amendments in ASU No. 2011-04 change the wording to describe the requirements in U.S. GAAP for measuring fair value and for disclosing information about fair value measurements to align with IFRS. The amendments also clarify the existing fair value measurement and disclosure requirements, which include (1) application of the highest and best use and valuation premise concepts, (2) measuring the fair value of an instrument classified in a reporting entity’s shareholders’ equity and (3) disclosing quantitative information about the unobservable inputs used for Level 3 items. The amendments also change a particular principle or requirement for measuring fair value or for disclosing information about fair value measurements, which include (1) measuring the fair value of financial instruments that are managed within a portfolio, (2) application of premiums and discounts in a fair value measurement and (3) additional disclosures about fair value measurements. The ASU is effective for interim and annual periods beginning after December 15, 2011. The adoption of ASU No.2011-04 did not have a material impact on the MHFG Group’s consolidated results of operations or financial condition.

In June 2011, the FASB issued ASU No.2011-05, “Comprehensive Income (Topic 220)—Presentation of Comprehensive Income” (“ASU No.2011-05”). The ASU eliminates the option to present components of other comprehensive income as part of the statement of changes in stockholders’ equity, and requires that all nonowner changes in stockholders’ equity be presented either in a single continuous statement of comprehensive income or in two separate but consecutive statements. The ASU also requires reclassification adjustments from other comprehensive income to net income be presented on the face of financial statements. The ASU is effective for fiscal years, and interim periods within those years, beginning after December 15, 2011, and should be applied retrospectively. In December 2011, the FASB issued ASU No.2011-12, “Comprehensive Income (Topic 220)—Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income in Accounting Standards Update No.2011-05” (“ASU No.2011-12”) to indefinitely defer only those changes in ASU No.2011-05 that relate to the presentation of reclassification adjustments. All other requirements in ASU No.2011-05 are not affected, and entities should continue to report reclassifications out of accumulated other comprehensive income consistent with the presentation requirements in effect before ASU No.2011-05. ASU No.2011-05 is an accounting principle which alters disclosure requirements, and had no impact on the MHFG Group’s consolidated results of operations or financial condition.

In September 2011, the FASB issued ASU No.2011-08, “Intangibles—Goodwill and Other (Topic 350)—Testing Goodwill for Impairment” (“ASU No.2011-08”). The ASU permits an entity the option to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step goodwill impairment test. Under this ASU, an entity is not required to calculate the fair value of a reporting unit unless the entity determines that it is more likely than not that its fair value is less than its carrying amount. The ASU is effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. The adoption of ASU No.2011-08 did not have a material impact on the MHFG Group’s consolidated results of operations or financial condition.

In December 2011, the FASB issued ASU No.2011-10, “Property, Plant, and Equipment (Topic 360)—Derecognition of in Substance Real Estate—a Scope Clarification” (“ASU No.2011-10”). The ASU clarifies that, even when a reporting entity ceases to have a controlling financial interest in a subsidiary that is in substance real estate as a result of default on the subsidiary’s nonrecourse debt, the reporting entity would continue to include the real estate, debt, and the results of the subsidiary’s operations in its consolidated financial statements until legal title to the real estate is transferred to legally satisfy the debt. The ASU is effective for fiscal years and interim periods within those years, beginning on or after June 15, 2012. The adoption of ASU No.2011-10 did not have a material impact on the MHFG Group’s consolidated results of operations or financial condition.

In December 2011, the FASB issued ASU No.2011-11, “Balance Sheet (Topic 210)—Disclosures about Offsetting Assets and Liabilities” (“ASU No.2011-11”). The ASU enhances disclosures by requiring improved information about financial instruments and derivative instruments that are either (1) offset on the statement of financial position or (2) subject to an enforceable master netting arrangement or similar agreement, irrespective of whether they are offset on the statement of financial position. Under the ASU, entities are required to provide both net and gross information for these financial instruments and derivative instruments in order to enhance comparability between those entities that prepare their financial statements on the basis of U.S. GAAP and those entities that prepare their financial statements on the basis of IFRS. The ASU is effective for annual reporting periods beginning on or after January 1, 2013 and interim periods within those annual periods. An entity should provide the disclosures required retrospectively for all comparative periods presented. In January 2013, the FASB issued ASU No.2013-01, “Balance Sheet (Topic 210)—Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities” (“ASU No.2013-01”). ASU No.2013-01 clarifies that the scope of ASU No.2011-11 applies to derivatives including bifurcated embedded derivatives, repurchase agreements and reverse repurchase agreements, and securities borrowing and securities lending transactions. ASU No.2011-11 is an accounting principle which expands disclosure requirements, and had no impact on the MHFG Group’s consolidated results of operations or financial condition.

In July 2012, the FASB issued ASU No.2012-02, “Intangibles—Goodwill and Other (Topic 350)—Testing Indefinite-Lived Intangible Assets for Impairment” (“ASU No.2012-02”). The ASU permits an entity first to assess qualitative factors to determine whether it is more likely than not that an indefinite-lived intangible asset is impaired as a basis for determining whether it is necessary to perform the quantitative impairment test. Under this ASU, an entity has an option not to calculate annually the fair value of an indefinite-lived intangible asset if the entity determines that it is not more likely than not that its fair value is less than its carrying amount. The ASU is effective for annual and interim impairment tests performed for fiscal years beginning after September 15, 2012. The adoption of ASU No.2012-02 did not have a material impact on the MHFG Group’s consolidated results of operations or financial condition.

In February 2013, the FASB issued ASU No.2013-02, “Comprehensive Income (Topic 220)—Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income” (“ASU No.2013-02”). The ASU requires an entity to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income. The ASU also requires an entity to provide information about the amounts reclassified out of accumulated other comprehensive income by component. The ASU is effective for reporting periods beginning after December 15, 2012. ASU No.2013-02 is an accounting principle which expands disclosure requirements, and had no impact on the MHFG Group’s consolidated results of operations or financial condition.

Accounting pronouncements issued but not yet effective

In June 2013, the FASB issued ASU No.2013-08, “Financial Services—Investment Companies (Topic 946)—Amendments to the Scope, Measurement, and Disclosure Requirements” (“ASU No.2013-08”). The ASU changes the approach to the investment company assessment and requires an investment company to measure noncontrolling ownership interests in other investment companies at fair value. The ASU also requires additional disclosures of (a) the fact that the entity is an investment company and is applying the guidance in ASC 946, “Financial Services—Investment Companies”, (b) information about changes, if any, in an entity’s status as an investment company, and (c) information about financial support provided or contractually required to be provided by an investment company to any of its investees. The ASU is effective for an entity’s interim and annual reporting periods in fiscal years that begin after December 15, 2013. Early adoption is prohibited. The MHFG Group does not expect that the adoption of ASU No.2013-08 will have a material impact on its consolidated results of operations and financial condition.

In May 2014, the FASB issued ASU No.2014-09, “Revenue from Contracts with Customers (Topic 606)” (“ASU No.2014-09”). The ASU provides a comprehensive guidance of revenue recognition, in convergence with IFRS, to improve financial reporting in U.S. GAAP by replacing the current complex guidance for recognizing revenue. The core principle of this ASU is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. To achieve that core principle, an entity should apply the following five steps: (1) identify the contract(s) with a customer, (2) identify the performance obligations in the contract, (3) determine the transaction price, (4) allocate the transaction price to the performance obligations in the contract, and (5) recognize revenue when ( or as) the entity satisfies a performance obligation. In order to enable users of financial statements to understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers, an entity should disclose the following quantitative and qualitative information: (1) contracts with customers—including revenue and impairments recognized, disaggregation of revenue, and information about contract balances and performance obligations, (2) significant judgments and changes in judgments—determining the timing of satisfaction of performance obligations, and determining the transaction price and amounts allocated to performance obligations, and (3) assets recognized from the costs to obtain or fulfill a contract. The ASU is effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. Early application is not permitted. The MHFG Group is currently evaluating the potential impact that the adoption of ASU No.2014-09 will have on its consolidated results of operations and financial condition.

In June 2014, the FASB issued ASU No.2014-11, “Transfers and Servicing (Topic 860)—Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures” (“ASU No.2014-11”). The ASU changes the accounting for repurchase-to-maturity transactions to secured borrowing accounting. For repurchase financing arrangements, the ASU requires separate accounting for a transfer of a financial asset executed contemporaneously with a repurchase agreement with the same counterparty, which will result in secured borrowing accounting for the repurchase agreement. The ASU requires disclosures for certain transactions comprising (1) a transfer of a financial asset accounted for as a sale and (2) an agreement with the same transferee entered into in contemplation of the initial transfer that results in the transferor retaining substantially all of the exposure to the economic return on the transferred financial asset throughout the term of the transaction. The ASU also requires an entity to disclose certain information, including risks related to collateral pledged, for repurchase agreements, securities lending transactions, and repurchase-to-maturity transactions that are accounted for as secured borrowings. The ASU is effective for the first interim or annual period beginning after December 15, 2014, except for interim disclosure requirements related to secured borrowings, which are effective for interim periods beginning after March 15, 2015. Earlier application is prohibited. The MHFG Group does not expect that the adoption of ASU No.2014-11 will have a material impact on its consolidated results of operations and financial condition.

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Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Loss) Before-Tax (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Net actuarial gain (loss)	¥ 204,506	¥ 103,683
Amortization of net actuarial loss (gain)	7,039	16,936
Prior service benefit (cost)		(1,782)
Amortization of prior service benefit	(195)	(319)
Total recognized in other comprehensive income (loss) before-tax	¥ 211,350	¥ 118,518

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Common Stock - Additional information (Detail) (JPY ¥) In Millions, except Share data, unless otherwise specified	12 Months Ended	0 Months Ended
	Mar. 31, 2012	Sep. 01, 2011 Mizuho Trust & Banking Company Limited	Sep. 01, 2011 The Former Mizuho Securities Company Limited	Sep. 01, 2011 The Former Mizuho Investors Securities Company Limited
Class of Stock [Line Items]
Equity transaction, shares of common stock issued	4,748,000	824,271,984	951,166,005	322,928,897
Equity transaction, voting equity interests received in exchange		30.15%	40.80%	46.02%
Equity transaction, value of common stock issued		¥ 95,828	¥ 110,379	¥ 37,497
Equity transaction, increase (decrease) in additional paid-in capital to adjust the carrying amount of Noncontrolling interests		(65,494)	38,423	11,599
Equity transaction, the carrying amount of Accumulated other comprehensive income adjusted to reflect the change in the ownership interest		¥ 958	¥ (2,178)	¥ 744

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Condensed Balance Sheets Parent Company Only (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Assets:
Cash and due from banks	¥ 1,696,879	¥ 1,268,442	¥ 1,216,627	¥ 1,884,531
Interest-bearing deposits in other banks	19,037,527	11,215,597
Other	3,198,995	2,601,951
Total	175,699,346	178,746,994	166,361,600
Liabilities and shareholders' equity:
Long-term debt	9,853,941	8,802,223
Other liabilities	4,422,023	4,368,126
Shareholders' equity	6,378,470	5,728,120
Total	175,699,346	178,746,994
Parent Company
Assets:
Cash and due from banks	167	200	167	155
Interest-bearing deposits in other banks	17,103	26,165
Investments in subsidiaries and affiliated companies	7,501,486	6,962,630
Other	210,622	152,351
Total	7,729,378	7,141,346
Liabilities and shareholders' equity:
Short-term borrowings	1,061,460	1,146,995
Long-term debt	240,000	240,000
Other liabilities	49,448	26,231
Shareholders' equity	6,378,470	5,728,120
Total	¥ 7,729,378	¥ 7,141,346

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Commitments and contingencies (Tables)

12 Months Ended

Mar. 31, 2014

Schedule of Guarantor Obligations

The maximum exposure or notional amount below does not represent the expected losses from the execution of the guarantees.

2013	Maximum potential/Contractual or Notional amount		Amount by expiration period
			One year or less		After one year through five years		After five years
	(in billions of yen)
Performance guarantees		1,750		935		619		196
Guarantees on loans		452		159		51		242
Guarantees on securities		146		19		127		—
Other guarantees		1,068		826		217		25
Guarantees for the repayment of trust principal		171		—		133		38
Liabilities of trust accounts		8,606		8,428		72		106
Derivative financial instruments		23,582		10,185		11,837		1,560
2014	Maximum potential/Contractual or Notional amount		Amount by expiration period
			One year or less		After one year through five years		After five years
	(in billions of yen)
Performance guarantees		1,985		1,125		708		152
Guarantees on loans		399		173		21		205
Guarantees on securities		170		42		128		—
Other guarantees		1,249		991		220		38
Guarantees for the repayment of trust principal		158		—		125		33
Liabilities of trust accounts		11,158		10,962		78		118
Derivative financial instruments		21,422		8,643		11,391		1,388

The table below presents the maximum potential amount of future payments of performance guarantees, guarantees on loans, guarantees on securities and other guarantees classified based on internal ratings at March 31, 2013 and 2014:

	2013		2014
	(in billions of yen)
Investment grade		2,387		2,673
Non-investment grade		1,029		1,130
Total		3,416		3,803

Note: Investment grade in the internal rating scale generally corresponds to BBB- or above in external rating scale.

Schedule of Off Balance Sheet Commitments and Guarantees

The table below summarizes the contractual amounts with regard to these undrawn commitments at March 31, 2013 and 2014:

	2013		2014
	(in billions of yen)
Commitments to extend credit (Note)		59,101		59,402
Commercial letters of credit		608		611
Total		59,709		60,013

Note: Commitments to extend credit include commitments to invest in securities.

Future Minimum Lease Payments for Capitalized Leases and Rental Payments for Operating Leases

Future minimum lease payments for capitalized leases and future minimum rental payments for operating leases at March 31, 2014 were as follows:

	Capitalized leases		Operating leases
	(in millions of yen)
Fiscal year ending March 31:
2015		6,479		48,233
2016		5,929		40,195
2017		5,186		35,584
2018		4,547		31,556
2019		3,820		29,237
2020 and thereafter		2,068		74,596
Total minimum lease/rental payments		28,029		259,401
Amount representing interest		1,349
Present value of minimum lease payments		26,680

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Components of Income Tax Expense (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Current:
Domestic	¥ 92,814	¥ 37,101	¥ 22,103
Foreign	42,919	10,754	32,714
Total current tax expense	135,733	47,855	54,817
Deferred:
Domestic	94,911	(40,021)	(36,777)
Foreign	(4,536)	(3,810)	(4,162)
Total deferred tax expense	90,375	(43,831)	(40,939)
Income tax expense (benefit)	¥ 226,108	¥ 4,024	¥ 13,878

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Assets and Liabilities Measured at Fair Value on Recurring Basis Including those for Which MHFG Group has Elected Fair Value Option (Detail) (JPY ¥)	Mar. 31, 2014		Mar. 31, 2013
Assets:
Available-for-sale securities	¥ 30,648,761,000,000		¥ 39,413,951,000,000
Fair Value, Measurements, Recurring
Assets:
Other investments	71,000,000,000		76,000,000,000
Total assets measured at fair value	58,128,000,000,000	[1]	73,557,000,000,000	[1]
Liabilities:
Trading securities sold, not yet purchased	4,350,000,000,000		3,520,000,000,000
Long-term debt	658,000,000,000	[2]	552,000,000,000	[2]
Total liabilities measured at fair value	15,483,000,000,000		17,321,000,000,000
Fair Value, Measurements, Recurring | Interest rate contracts
Assets:
Assets, derivatives	8,064,000,000,000		10,350,000,000,000
Liabilities:
Liabilities, derivatives	7,895,000,000,000		10,018,000,000,000
Fair Value, Measurements, Recurring | Foreign exchange contracts
Assets:
Assets, derivatives	2,354,000,000,000		3,099,000,000,000
Liabilities:
Liabilities, derivatives	2,351,000,000,000		2,983,000,000,000
Fair Value, Measurements, Recurring | Equity-related contracts
Assets:
Assets, derivatives	197,000,000,000		182,000,000,000
Liabilities:
Liabilities, derivatives	178,000,000,000		177,000,000,000
Fair Value, Measurements, Recurring | Credit-related contracts
Assets:
Assets, derivatives	49,000,000,000		59,000,000,000
Liabilities:
Liabilities, derivatives	34,000,000,000		44,000,000,000
Fair Value, Measurements, Recurring | Other contracts
Assets:
Assets, derivatives	23,000,000,000		38,000,000,000
Liabilities:
Liabilities, derivatives	17,000,000,000		27,000,000,000
Fair Value, Measurements, Recurring | Japanese government bonds
Assets:
Assets, trading securities	3,410,000,000,000	[3]	4,700,000,000,000	[3]
Available-for-sale securities	22,056,000,000,000		30,783,000,000,000
Fair Value, Measurements, Recurring | Japanese local government bonds
Assets:
Assets, trading securities	74,000,000,000	[3]	125,000,000,000	[3]
Available-for-sale securities	245,000,000,000		244,000,000,000
Fair Value, Measurements, Recurring | U.S. Treasury bonds and federal agency securities
Assets:
Assets, trading securities	4,027,000,000,000	[3]	6,083,000,000,000	[3]
Available-for-sale securities	154,000,000,000		178,000,000,000
Fair Value, Measurements, Recurring | Other foreign government bonds
Assets:
Assets, trading securities	2,841,000,000,000	[3]	2,429,000,000,000	[3]
Available-for-sale securities	721,000,000,000		598,000,000,000
Fair Value, Measurements, Recurring | Agency mortgage-backed securities
Assets:
Assets, trading securities	1,754,000,000,000	[3]	2,651,000,000,000	[3]
Available-for-sale securities	961,000,000,000		1,006,000,000,000
Fair Value, Measurements, Recurring | Residential mortgage-backed securities
Assets:
Assets, trading securities	78,000,000,000	[3]	100,000,000,000	[3]
Available-for-sale securities	332,000,000,000		442,000,000,000
Fair Value, Measurements, Recurring | Commercial mortgage-backed securities
Assets:
Assets, trading securities	93,000,000,000	[3]	94,000,000,000	[3]
Available-for-sale securities	161,000,000,000		250,000,000,000
Fair Value, Measurements, Recurring | Certificates of deposit and commercial paper
Assets:
Assets, trading securities	969,000,000,000	[3]	1,318,000,000,000	[3]
Fair Value, Measurements, Recurring | Corporate bonds and other debt securities
Assets:
Assets, trading securities	2,122,000,000,000	[3]	1,643,000,000,000	[3]
Fair Value, Measurements, Recurring | Equity securities
Assets:
Assets, trading securities	1,353,000,000,000	[3]	1,196,000,000,000	[3]
Fair Value, Measurements, Recurring | Japanese corporate bonds and other debt securities
Assets:
Available-for-sale securities	2,028,000,000,000		2,215,000,000,000
Fair Value, Measurements, Recurring | Foreign corporate bonds and other debt securities
Assets:
Available-for-sale securities	569,000,000,000		559,000,000,000
Fair Value, Measurements, Recurring | Equity securities (marketable)
Assets:
Available-for-sale securities	3,422,000,000,000		3,139,000,000,000
Fair Value, Measurements, Recurring | Level 1
Assets:
Other investments	2,000,000,000		1,000,000,000
Total assets measured at fair value	36,522,000,000,000	[1]	48,289,000,000,000	[1]
Liabilities:
Trading securities sold, not yet purchased	3,862,000,000,000		3,338,000,000,000
Total liabilities measured at fair value	3,968,000,000,000		3,401,000,000,000
Fair Value, Measurements, Recurring | Level 1 | Interest rate contracts
Assets:
Assets, derivatives	43,000,000,000		7,000,000,000
Liabilities:
Liabilities, derivatives	42,000,000,000		8,000,000,000
Fair Value, Measurements, Recurring | Level 1 | Foreign exchange contracts
Assets:
Assets, derivatives	6,000,000,000		5,000,000,000
Liabilities:
Liabilities, derivatives	5,000,000,000		4,000,000,000
Fair Value, Measurements, Recurring | Level 1 | Equity-related contracts
Assets:
Assets, derivatives	60,000,000,000		45,000,000,000
Liabilities:
Liabilities, derivatives	58,000,000,000		51,000,000,000
Fair Value, Measurements, Recurring | Level 1 | Other contracts
Assets:
Assets, derivatives	1,000,000,000
Liabilities:
Liabilities, derivatives	1,000,000,000
Fair Value, Measurements, Recurring | Level 1 | Japanese government bonds
Assets:
Assets, trading securities	3,360,000,000,000	[3]	4,651,000,000,000	[3]
Available-for-sale securities	20,912,000,000,000		29,198,000,000,000
Fair Value, Measurements, Recurring | Level 1 | U.S. Treasury bonds and federal agency securities
Assets:
Assets, trading securities	3,541,000,000,000	[3]	5,777,000,000,000	[3]
Available-for-sale securities	154,000,000,000		178,000,000,000
Fair Value, Measurements, Recurring | Level 1 | Other foreign government bonds
Assets:
Assets, trading securities	2,567,000,000,000	[3]	2,235,000,000,000	[3]
Available-for-sale securities	280,000,000,000		334,000,000,000
Fair Value, Measurements, Recurring | Level 1 | Agency mortgage-backed securities
Assets:
Assets, trading securities	1,390,000,000,000	[3]	2,055,000,000,000	[3]
Available-for-sale securities	105,000,000,000		144,000,000,000
Fair Value, Measurements, Recurring | Level 1 | Corporate bonds and other debt securities
Assets:
Assets, trading securities	38,000,000,000	[3]	50,000,000,000	[3]
Fair Value, Measurements, Recurring | Level 1 | Equity securities
Assets:
Assets, trading securities	714,000,000,000	[3]	622,000,000,000	[3]
Fair Value, Measurements, Recurring | Level 1 | Foreign corporate bonds and other debt securities
Assets:
Available-for-sale securities	1,000,000,000		12,000,000,000
Fair Value, Measurements, Recurring | Level 1 | Equity securities (marketable)
Assets:
Available-for-sale securities	3,348,000,000,000		2,975,000,000,000
Fair Value, Measurements, Recurring | Level 2
Assets:
Total assets measured at fair value	20,124,000,000,000	[1]	23,431,000,000,000	[1]
Liabilities:
Trading securities sold, not yet purchased	488,000,000,000		182,000,000,000
Long-term debt	157,000,000,000	[2]	171,000,000,000	[2]
Total liabilities measured at fair value	10,981,000,000,000		13,471,000,000,000
Fair Value, Measurements, Recurring | Level 2 | Interest rate contracts
Assets:
Assets, derivatives	7,997,000,000,000		10,319,000,000,000
Liabilities:
Liabilities, derivatives	7,846,000,000,000		9,997,000,000,000
Fair Value, Measurements, Recurring | Level 2 | Foreign exchange contracts
Assets:
Assets, derivatives	2,331,000,000,000		3,066,000,000,000
Liabilities:
Liabilities, derivatives	2,340,000,000,000		2,968,000,000,000
Fair Value, Measurements, Recurring | Level 2 | Equity-related contracts
Assets:
Assets, derivatives	124,000,000,000		114,000,000,000
Liabilities:
Liabilities, derivatives	108,000,000,000		110,000,000,000
Fair Value, Measurements, Recurring | Level 2 | Credit-related contracts
Assets:
Assets, derivatives	28,000,000,000		30,000,000,000
Liabilities:
Liabilities, derivatives	30,000,000,000		35,000,000,000
Fair Value, Measurements, Recurring | Level 2 | Other contracts
Assets:
Assets, derivatives	18,000,000,000		18,000,000,000
Liabilities:
Liabilities, derivatives	12,000,000,000		8,000,000,000
Fair Value, Measurements, Recurring | Level 2 | Japanese government bonds
Assets:
Assets, trading securities	50,000,000,000	[3]	49,000,000,000	[3]
Available-for-sale securities	1,144,000,000,000		1,585,000,000,000
Fair Value, Measurements, Recurring | Level 2 | Japanese local government bonds
Assets:
Assets, trading securities	74,000,000,000	[3]	125,000,000,000	[3]
Available-for-sale securities	245,000,000,000		244,000,000,000
Fair Value, Measurements, Recurring | Level 2 | U.S. Treasury bonds and federal agency securities
Assets:
Assets, trading securities	486,000,000,000	[3]	306,000,000,000	[3]
Fair Value, Measurements, Recurring | Level 2 | Other foreign government bonds
Assets:
Assets, trading securities	274,000,000,000	[3]	194,000,000,000	[3]
Available-for-sale securities	441,000,000,000		264,000,000,000
Fair Value, Measurements, Recurring | Level 2 | Agency mortgage-backed securities
Assets:
Assets, trading securities	364,000,000,000	[3]	596,000,000,000	[3]
Available-for-sale securities	856,000,000,000		862,000,000,000
Fair Value, Measurements, Recurring | Level 2 | Residential mortgage-backed securities
Assets:
Available-for-sale securities	112,000,000,000		150,000,000,000
Fair Value, Measurements, Recurring | Level 2 | Commercial mortgage-backed securities
Assets:
Assets, trading securities	2,000,000,000	[3]	3,000,000,000	[3]
Fair Value, Measurements, Recurring | Level 2 | Certificates of deposit and commercial paper
Assets:
Assets, trading securities	969,000,000,000	[3]	1,318,000,000,000	[3]
Fair Value, Measurements, Recurring | Level 2 | Corporate bonds and other debt securities
Assets:
Assets, trading securities	1,671,000,000,000	[3]	1,176,000,000,000	[3]
Fair Value, Measurements, Recurring | Level 2 | Equity securities
Assets:
Assets, trading securities	579,000,000,000	[3]	503,000,000,000	[3]
Fair Value, Measurements, Recurring | Level 2 | Japanese corporate bonds and other debt securities
Assets:
Available-for-sale securities	1,858,000,000,000		2,000,000,000,000
Fair Value, Measurements, Recurring | Level 2 | Foreign corporate bonds and other debt securities
Assets:
Available-for-sale securities	427,000,000,000		345,000,000,000
Fair Value, Measurements, Recurring | Level 2 | Equity securities (marketable)
Assets:
Available-for-sale securities	74,000,000,000		164,000,000,000
Fair Value, Measurements, Recurring | Level 3
Assets:
Other investments	69,000,000,000		75,000,000,000
Total assets measured at fair value	1,482,000,000,000	[1]	1,837,000,000,000	[1]
Liabilities:
Long-term debt	501,000,000,000	[2]	381,000,000,000	[2]
Total liabilities measured at fair value	534,000,000,000		449,000,000,000
Fair Value, Measurements, Recurring | Level 3 | Interest rate contracts
Assets:
Assets, derivatives	24,000,000,000		24,000,000,000
Liabilities:
Liabilities, derivatives	7,000,000,000		13,000,000,000
Fair Value, Measurements, Recurring | Level 3 | Foreign exchange contracts
Assets:
Assets, derivatives	17,000,000,000		28,000,000,000
Liabilities:
Liabilities, derivatives	6,000,000,000		11,000,000,000
Fair Value, Measurements, Recurring | Level 3 | Equity-related contracts
Assets:
Assets, derivatives	13,000,000,000		23,000,000,000
Liabilities:
Liabilities, derivatives	12,000,000,000		16,000,000,000
Fair Value, Measurements, Recurring | Level 3 | Credit-related contracts
Assets:
Assets, derivatives	21,000,000,000		29,000,000,000
Liabilities:
Liabilities, derivatives	4,000,000,000		9,000,000,000
Fair Value, Measurements, Recurring | Level 3 | Other contracts
Assets:
Assets, derivatives	4,000,000,000		20,000,000,000
Liabilities:
Liabilities, derivatives	4,000,000,000		19,000,000,000
Fair Value, Measurements, Recurring | Level 3 | Residential mortgage-backed securities
Assets:
Assets, trading securities	78,000,000,000	[3]	100,000,000,000	[3]
Available-for-sale securities	220,000,000,000		292,000,000,000
Fair Value, Measurements, Recurring | Level 3 | Commercial mortgage-backed securities
Assets:
Assets, trading securities	91,000,000,000	[3]	91,000,000,000	[3]
Available-for-sale securities	161,000,000,000		250,000,000,000
Fair Value, Measurements, Recurring | Level 3 | Corporate bonds and other debt securities
Assets:
Assets, trading securities	413,000,000,000	[3]	417,000,000,000	[3]
Fair Value, Measurements, Recurring | Level 3 | Equity securities
Assets:
Assets, trading securities	60,000,000,000	[3]	71,000,000,000	[3]
Fair Value, Measurements, Recurring | Level 3 | Japanese corporate bonds and other debt securities
Assets:
Available-for-sale securities	170,000,000,000		215,000,000,000
Fair Value, Measurements, Recurring | Level 3 | Foreign corporate bonds and other debt securities
Assets:
Available-for-sale securities	¥ 141,000,000,000		¥ 202,000,000,000

[1] Amounts include the investments measured at the NAV per share at March 31, 2013 and 2014, of ¥715 billion and ¥649 billion, respectively, of which ¥667 billion and ¥612 billion, respectively, are classified in Level 2, and ¥48 billion and ¥37 billion, respectively, are classified in Level 3. The amounts of unfunded commitments related to these investments at March 31, 2013 and 2014 were ¥24 billion and ¥23 billion, respectively.

[2] Amounts represent items for which the Group elected the fair value option.

[3] Trading securities include foreign currency denominated securities for which the MHFG Group elected the fair value option.

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Pension and Other Employee Benefit Plans - Additional Information (Detail) (JPY ¥)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plans, costs recognized in respect of contributions to the plans	¥ 2,487,000,000	¥ 1,968,000,000	¥ 2,129,000,000
Amounts in accumulated other comprehensive income (loss) expected to be amortized as prior service cost or benefit over the next fiscal year	195,000,000
Amounts in accumulated other comprehensive income (loss) expected to be amortized as actuarial loss over the next fiscal year	137,000,000
Total benefit obligations of group, decrease	(110,744,000,000)
Pension plan, contribution expected to be paid during the next fiscal year	¥ 49,000,000,000

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Basis of presentation and summary of significant accounting policies (Tables)

12 Months Ended

Mar. 31, 2014

Schedule Of Useful Lives For Property Plant Equipment

The useful lives of premises and equipment are as follows:

	Years
Buildings		3 to 50
Equipment and furniture		2 to 20
Leasehold improvements		2 to 50

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Derivative financial instruments

12 Months Ended

Mar. 31, 2014

Derivative financial instruments

22. Derivative financial instruments

The MHFG Group enter into derivative financial instruments in response to the diverse needs of customers, to control the risk related to the assets and liabilities of the MHFG Group, as part of its asset and liability management, and for proprietary trading purposes. The MHFG Group is exposed primarily to market risk associated with interest rate, commodity, foreign currency, and equity products. Market risk arises from changes in market prices or indices, interest rates and foreign exchange rates that may result in an adverse change in the market value of the financial instrument or an increase in its funding costs. Exposure to market risk is managed by imposing position limits and monitoring procedures and by initiating hedging transactions. In addition to market risk, the MHFG Group is exposed to credit risk associated with counterparty default or nonperformance in respect of transactions. Credit risk arises when a counterparty fails to perform according to the terms and conditions of the contract and the value of the underlying collateral held, if applicable, is not sufficient to recover resulting losses. The exposure to credit risk is measured by the fair value of all derivatives in a gain position and its potential increase at the balance sheet dates. The exposure to credit risk is managed by entering into legally enforceable master netting agreements to mitigate the overall counterparty credit risk, requiring underlying collateral and guarantees based on an individual credit analysis of each obligor and evaluating the credit features of each instrument. In addition, credit approvals, limits and monitoring procedures are also imposed.

Notional amount and fair value of derivative contracts

The following table summarizes the notional and fair value amounts of derivative instruments outstanding as of March 31, 2013 and 2014. The fair values of derivatives are presented on a gross basis and not offset against the right to reclaim cash collateral or the obligation to return cash collateral under master netting agreements in the consolidated balance sheets, or the table below.

			Fair value
			Derivative receivables (2)				Derivative payables (2)
2013	Notional amount (1)		Designated as hedges		Not designated as hedges		Designated as hedges		Not designated as hedges
	(in billions of yen)
Interest rate contracts		854,698		—		10,350		—		10,018
Foreign exchange contracts		118,708		—		3,099		10		2,973
Equity-related contracts		3,419		—		182		—		177
Credit-related contracts		5,266		—		59		—		44
Other contracts		522		—		38		—		27
Total		982,613		—		13,728		10		13,239

			Fair value
			Derivative receivables (2)				Derivative payables (2)
2014	Notional amount (1)		Designated as hedges		Not designated as hedges		Designated as hedges		Not designated as hedges
	(in billions of yen)
Interest rate contracts		971,939		—		8,064		—		7,895
Foreign exchange contracts		119,864		—		2,354		2		2,349
Equity-related contracts		2,979		1		196		—		178
Credit-related contracts		4,662		—		49		—		34
Other contracts		463		—		23		—		17
Total		1,099,907		1		10,686		2		10,473

Notes:

(1) Notional amount represents the sum of gross long and gross short third-party contracts.

(2) Derivative receivables and payables are recorded in Trading account assets and Trading account liabilities, respectively.

The MHFG Group provided and/or accepted cash collateral for derivative transactions under master netting agreements. The cash collateral, not offset against derivative positions, was included in Other assets and Other liabilities, respectively, of which the amounts were ¥742 billion and ¥503 billion at March 31, 2013, and ¥466 billion and ¥433 billion at March 31, 2014, respectively.

Hedging activities

In order to qualify for hedge accounting, a derivative must be considered highly effective at reducing the risk associated with the exposure being hedged. Each derivative must be designated as a hedge, with documentation of the risk management objective and strategy, including identification of the hedging instrument, the hedged item and the risk exposure, and how effectiveness is to be assessed prospectively and retrospectively. The extent to which a hedging instrument is effective at achieving offsetting changes in fair value or cash flows must be assessed at least quarterly. Any ineffectiveness must be reported immediately in earnings. The MHFG Group’s hedging activities include fair value and net investment hedges.

Fair value hedges

The MHFG Group primarily uses option and forward contracts to modify exposure to changes in fair value of available-for-sale securities. For qualifying fair value hedges, all changes in the fair value of the derivative and the corresponding hedged item relating to the risk being hedged are recognized in earnings in Investment gains (losses)—net. The change in fair value of the portion of the hedging instruments excluded from the assessment of hedge effectiveness is recorded in Trading account gains (losses)—net. No ineffectiveness exists because the MHFG Group chooses to exclude changes in the option’s time value and differences between the spot and the forward prices from the effectiveness test. If the hedge relationship is terminated, the fair value adjustment to the hedged item continues to be reported as part of the basis of the item and is amortized to earnings as a yield adjustment.

The following table summarizes gains and losses information related to fair value hedges for the fiscal years ended March 31, 2012, 2013 and 2014:

	Gains (losses) recorded in income
2012	Derivatives			Hedged items		Hedge ineffectiveness		Net gain (loss) excluded from assessment of effectiveness
	(in millions of yen)
Interest rate contracts		(214	)		150		—		(64	)
Equity-related contracts		(285	)		278		—		(7	)
Total		(499	)		428		—		(71	)

	Gains (losses) recorded in income
2013	Derivatives		Hedged items			Hedge ineffectiveness		Net gain (loss) excluded from assessment of effectiveness
	(in millions of yen)
Interest rate contracts		44		(81	)		—		(37	)
Equity-related contracts		352		(394	)		—		(42	)
Total		396		(475	)		—		(79	)

	Gains (losses) recorded in income
2014	Derivatives		Hedged items			Hedge ineffectiveness		Net gain (loss) excluded from assessment of effectiveness
	(in millions of yen)
Equity-related contracts		801		(1,112	)		—		(311	)
Total		801		(1,112	)		—		(311	)

Net investment hedges

The MHFG Group uses forward foreign exchange contracts and foreign currency-denominated debt instruments to protect the value of net investments in non-Japanese subsidiaries from foreign currency exposure. Under net investment hedges, both derivatives and nonderivative financial instruments qualify as hedging instruments. The foreign currency-denominated debt instruments qualifying as hedging instruments include deposits and long-term debt, of which the carrying amounts of the portion designated as net investment hedges are included within the respective items in the consolidated balance sheets as well as relevant accompanying notes. For net investment hedges, the changes in the fair value of a hedging derivative instrument or nonderivative hedging financial instrument is recorded in Foreign currency translation adjustments within Accumulated other comprehensive income (loss), provided that the hedging instrument is designated and is effective as a hedge of the net investment. The change in fair value of the ineffective portion is recorded in Foreign exchange gains (losses)—net in earnings. No amount is excluded from the assessment of hedge effectiveness of net investment hedges.

The following table summarizes gains and losses information related to net investment hedges for the fiscal years ended March 31, 2012, 2013 and 2014:

	Gains (losses) recorded in income and other comprehensive income (“OCI”)
	2012				2013						2014
	Effective portion recorded in OCI		Ineffective portion recorded in income		Effective portion recorded in OCI			Ineffective portion recorded in income			Effective portion recorded in OCI			Ineffective portion recorded in income
	(in millions of yen)
Financial instruments hedging foreign exchange risk		8,024		1,666		(65,851	)		(2,908	)		(102,150	)		(7,316	)
Total		8,024		1,666		(65,851	)		(2,908	)		(102,150	)		(7,316	)

Note: Related to the effective portion of net investment hedges, Accumulated other comprehensive income of ¥1,893 million and ¥13,858 million were reclassified to earnings for the fiscal years ended March 31, 2012 and 2013 respectively. No amount related to the effective portion of net investment hedges was reclassified from Accumulated other comprehensive income (loss) to earnings for the fiscal year ended March 31, 2014.

Derivative instruments not designated or qualifying as hedges

The MHFG Group enters into the following derivative transactions that do not qualify for hedge accounting with a view to implementing risk management hedging strategies: (1) interest-rate swap transactions for the purpose of hedging interest-rate risks in deposits, loans etc., (2) currency swap transactions for the purpose of hedging the foreign exchange risk of these assets, and (3) credit derivatives for the purpose of hedging the credit risk in loans, RMBS, CMBS, CLO and other similar assets. Such derivatives are accounted for as trading positions. The changes in fair value of these instruments are primarily recorded in Trading account gains (losses)—net, even though they are used to mitigate or transform the risk of exposures arising from banking activities. The net gain (loss) resulting from changes in the fair value of certain credit derivatives where the Group purchases protection to mitigate its credit risk exposure, related to its corporate loan portfolio, is recorded in Other noninterest income (expenses).

The following table summarizes gains and losses on derivatives not designated or qualifying as hedges during the fiscal years ended March 31, 2012, 2013 and 2014:

	Gains (losses) recorded in income
	2012			2013			2014
	(in millions of yen)
Interest rate contracts (1)		261,632			219,422			(79,562	)
Foreign exchange contracts		(146,258	)		(91,300	)		(13,167	)
Equity-related contracts (1)		(7,143	)		(59,421	)		(41,296	)
Credit-related contracts (2)		(5,575	)		(6,877	)		(7,761	)
Other contracts		283			(2,378	)		(6,857	)
Total		102,939			59,446			(148,643	)

Notes:

(1) The net gain (loss) excluded from the assessment of the effectiveness of fair value hedges is not included in the above table.

(2) Amounts include the net loss of ¥3,391 million, ¥6,703 million and ¥8,660 million on the credit derivatives hedging the credit risk of loans during the fiscal years ended March 31, 2012, 2013 and 2014, respectively.

Credit derivatives

A credit derivative is a bilateral contract between a seller and a buyer of protection against the credit risk of a particular entity. Credit derivatives generally require that the seller of credit protection make payments to the buyer upon the occurrence of predefined credit events, which include bankruptcy, dissolution or insolvency of the referenced entity. The MHFG Group either purchases or writes protection on either a single name or a portfolio of reference credits. The Group enters into credit derivatives to help mitigate credit risk in its corporate loan portfolio and other cash positions, to take proprietary trading positions, and to facilitate client transactions.

The notional amount of credit derivatives represents the maximum potential amount of future payments the seller could be required to make. If the predefined credit event occurs, the seller will generally have a right to collect on the underlying reference credit and any related cash flows, while being liable for the full notional amount of credit protection to the buyer. The Group manages credit risk associated with written protection by purchasing protection with identical or similar underlying reference credits, which substantially offsets its exposure. Thus, the notional amount is not necessarily a reliable indicator of the Group’s actual loss exposure.

The following table summarizes the notional and fair value amounts of credit derivatives at March 31, 2013 and 2014:

	2013				2014
	Notional amount		Fair value		Notional amount		Fair value
	(in billions of yen)
Credit protection written:
Investment grade		1,810		1		1,723		21
Non-investment grade		652		1		479		3
Total		2,462		2		2,202		24
Credit protection purchased		2,870		13		2,548		(9	)

Note: The rating scale is based upon either the external ratings or the internal ratings of the underlying reference credit. The lowest investment grade rating is considered to be BBB^- or the corresponding internal rating, while anything below or unrated is considered to be non-investment grade. Non-investment grade credit derivatives primarily consist of unrated credit default swap indices such as CDX and iTraxx.

The following table shows the maximum potential amount of future payments for credit protection written by expiration period at March 31, 2013 and 2014:

	Maximum payout/Notional amount
	2013		2014
	(in billions of yen)
One year or less		620		325
After one year through five years		1,720		1,791
After five years		122		86
Total		2,462		2,202

Note: The maximum potential amount of future payments is the aggregate notional amount of the credit derivatives where the Group wrote the credit protection, and it has not been reduced by the Group’s right of collection over the underlying assets and the related cash flows, nor netted against that of credit protection purchased.

Credit-related contingent features

Certain of the MHFG Group’s derivative instruments contain provisions that require the Group’s debt to maintain an investment grade credit rating from the major credit rating agencies. If the Group’s debt credit rating were to fall below investment grade, the counterparties to the derivative instruments could request immediate payment or demand immediate and ongoing full overnight collateralization on derivative instruments which are in net liability positions for the Group. The aggregate fair value of all derivative instruments with such credit-risk-related contingent features in net liability positions on March 31, 2013 and 2014 was ¥1,022 billion and ¥687 billion, respectively. As the Group has provided ¥1,029 billion and ¥614 billion as collateral to the counterparties in the normal course of its business on March 31, 2013 and 2014, respectively, if the contingent features described above were triggered on March 31, 2013 and 2014, there was no amount that the Group would be required to post as collateral or settle immediately on March 31, 2013, while the amount required to be posted as collateral or settled immediately would be ¥73 billion on March 31, 2014.

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Stock-based compensation

12 Months Ended

Mar. 31, 2014

Stock-based compensation

21. Stock-based compensation

Concurrently with the abolishment of, and as an alternative to the retirement allowances program for directors and executive officers of MHFG, the former MHBK, the former MHCB, and MHTB, the MHFG Group introduced stock compensation-type stock options, in the form of stock acquisition rights, for directors (excluding the outside directors) and executive officers of the respective companies (hereinafter referred to collectively as the “Directors”) in June 2008. The Group also introduced similar stock compensation-type stock options for MHSC’s Directors in June 2009. The Group maintained three types of stock-based compensation plans for Directors of MHFG, the former MHBK and the former MHCB (“MHFG Stock Plan”), for those of MHTB, and for those of MHSC. These three plans were integrated into MHFG Stock Plan during the fiscal year ended March 31, 2012, as MHTB and MHSC became MHFG’s wholly-owned subsidiaries and the stocks of these entities were delisted.

MHFG Stock Plan

In this plan, 1,000 shares of MHFG common stock shall be issued or transferred upon exercise of each of the stock acquisition rights. The amount to be paid upon exercise shall be 1 yen per share. The contractual term of the stock acquisition rights is 20 years. A holder may exercise the stock acquisition rights only after the date on which such holder loses the status as a Director of MHFG, MHBK, MHTB or MHSC.

The following is a roll-forward of MHFG Stock Plan for the fiscal year ended March 31, 2014:

	Number of shares		Weighted-average exercise price		Weighted-average remaining contractual term		Aggregate intrinsic value
			(in yen)		(in years)		(in millions of yen)
Outstanding at beginning of fiscal year		23,863,000		1
Granted during fiscal year		7,932,000		1
Exercised during fiscal year		9,252,000		1
Outstanding at end of fiscal year		22,543,000		1		18.47		4,576
Exercisable at end of fiscal year		630,000		1		16.31		128

There were no non-vested stock options remaining as of March 31, 2014.

The following table presents the assumptions used in the Black-Scholes option pricing model to estimate the fair value of stock acquisition rights on the date of grant. The risk-free interest rate is based on the Japanese government bonds yield curve for the expected remaining term in effect at the date of grant. The expected volatility is based on the historical trading data of MHFG common stock. The expected remaining term is based on the average service period of Directors of MHFG, MHBK, MHTB and MHSC, which represents the period of time that stock acquisition rights granted are expected to be outstanding. The expected dividend yield is based on the dividend rate of MHFG common stock at the date of grant.

	For the stock acquisition rights granted during the fiscal years ended March 31,
	2013			2014
Risk-free interest rate		0.10	%		0.08	%
Expected volatility		29.30	%		28.16	%
Expected remaining term (in years)		2.42			2.46
Expected dividend yield		4.69	%		3.11	%

The weighted-average grant-date fair value of stock acquisition rights granted during the fiscal years ended March 31, 2012, 2013 and 2014 was ¥91,840, ¥113,250 and ¥192,610, respectively.

The compensation cost related to this plan recognized in income was ¥788 million, ¥1,333 million and ¥1,527 million during the fiscal years ended March 31, 2012, 2013 and 2014, respectively.

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Balances of Time Deposits and Certificates of Deposit Issued by Domestic Offices in Amounts of Yen Ten Million or more and Balances of those Deposits Issued by Foreign Offices in Amounts of United States One Hundred Thousand Dollars or more (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Deposits From Banking Clients [Line Items]
Domestic deposit in amounts of YEN 10 million or more	¥ 26,469,338	¥ 29,695,290
Foreign deposit in amounts of USD 100,000 or more	14,193,833	12,142,704
Time deposits
Deposits From Banking Clients [Line Items]
Domestic deposit in amounts of YEN 10 million or more	18,351,826	18,302,196
Foreign deposit in amounts of USD 100,000 or more	9,555,568	8,209,016
Certificates of deposit
Deposits From Banking Clients [Line Items]
Domestic deposit in amounts of YEN 10 million or more	8,117,512	11,393,094
Foreign deposit in amounts of USD 100,000 or more	¥ 4,638,265	¥ 3,933,688

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Regulatory matters (Tables)

12 Months Ended

Mar. 31, 2014

Capital Requirements and Regulatory Adjustments Over Transitional Period

The capital requirements and regulatory adjustments will be phased in over a transitional period as follows (italicized percentages indicate those still in transition periods):

	March 2013			March 2014			March 2015			March 2016			March 2017			March 2018			March 2019			March 2020			March 2021			March 2022
Minimum Common Equity Tier 1 capital (Note)		3.5	%		4.0	%		4.5	%		4.5	%		4.5	%		4.5	%		4.5	%		4.5	%		4.5	%		4.5	%
Minimum Tier 1 capital (Note)		4.5	%		5.5	%		6.0	%		6.0	%		6.0	%		6.0	%		6.0	%		6.0	%		6.0	%		6.0	%
Minimum total capital (Note)		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%
Capital conservation buffer		0.0	%		0.0	%		0.0	%		0.625	%		1.25	%		1.875	%		2.5	%		2.5	%		2.5	%		2.5	%
Phase out of recognition of capital instruments that no longer qualify as capital (Note)		90.0	%		80.0	%		70.0	%		60.0	%		50.0	%		40.0	%		30.0	%		20.0	%		10.0	%		0.0	%
Phase-in of deductions from capital (Note)		0.0	%		20.0	%		40.0	%		60.0	%		80.0	%		100.0	%		100.0	%		100.0	%		100.0	%		100.0	%
Additional loss absorbency requirements for G-SIBs		—			—			—			Additional loss absorption capacity tailored to the impact of the entity’s default, ranging from 1% to 2.5% of risk-weighted assets, to be met with Common Equity Tier 1 capital

Note: While these measures are included in the revisions to capital adequacy guidelines that have been applied from March 31, 2013 as published by the Financial Services Agency, capital adequacy guidelines related to other requirements under the Basel III rules, such as the capital conservation buffer, countercyclical buffer and additional loss absorbency requirements for G-SIBs/G-SIFIs, have not yet been published.

Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations

Capital adequacy ratios of MHFG, MHBK, and MHTB as of March 31, 2013 and 2014 calculated in accordance with Japanese GAAP and guidelines established by the Financial Services Agency are set forth in the following table:

	2013				2014
	Amount		Ratio		Amount		Ratio
	(in billions of yen, except percentages)
Consolidated:
MHFG:
Common Equity Tier 1 capital:
Required		2,059		3.50		2,411		4.00
Actual		4,804		8.16		5,304		8.79
Tier 1 capital:
Required		2,647		4.50		3,316		5.50
Actual		6,487		11.02		6,845		11.35
Total risk-based capital:
Required		4,706		8.00		4,823		8.00
Actual		8,345		14.18		8,656		14.35
MHBK (Note):
Common Equity Tier 1 capital:
Required		—		—		2,130		4.00
Actual		—		—		5,387		10.11
Tier 1 capital:
Required		—		—		2,928		5.50
Actual		—		—		6,525		12.25
Total risk-based capital:
Required		—		—		4,259		8.00
Actual		—		—		8,180		15.36
MHTB:
Common Equity Tier 1 capital:
Required		91		3.50		103		4.00
Actual		344		13.24		379		14.76
Tier 1 capital:
Required		117		4.50		141		5.50
Actual		344		13.24		379		14.76
Total risk-based capital:
Required		208		8.00		205		8.00
Actual		448		17.21		457		17.80
Non-consolidated:
MHBK (Note):
Common Equity Tier 1 capital:
Required		—		—		2,072		4.00
Actual		—		—		5,260		10.15
Tier 1 capital:
Required		—		—		2,849		5.50
Actual		—		—		6,370		12.29
Total risk-based capital:
Required		—		—		4,144		8.00
Actual		—		—		8,072		15.58
MHTB:
Common Equity Tier 1 capital:
Required		90		3.50		101		4.00
Actual		345		13.45		375		14.76
Tier 1 capital:
Required		115		4.50		139		5.50
Actual		345		13.45		375		14.76
Total risk-based capital:
Required		205		8.00		203		8.00
Actual		446		17.43		451		17.79

Note: The former MHBK and the former MHCB merged on July 1, 2013 and the former MHCB, the surviving company, changed its trade name to MHBK.

Capital adequacy ratios of the former MHCB and the former MHBK as of March 31, 2013 are set forth in the following table:

	March 31, 2013
	Consolidated				Non-consolidated
	Amount		Ratio		Amount		Ratio
	(in billions of yen, except percentages)
The former MHCB (1):
Common Equity Tier 1 capital:
Required		1,292		3.50		1,143		3.50
Actual		3,195		8.65		2,993		9.16
Tier 1 capital:
Required		1,661		4.50		1,470		4.50
Actual		4,071		11.03		3,980		12.18
Total risk-based capital:
Required		2,953		8.00		2,613		8.00
Actual		5,130		13.89		5,008		15.33
The former MHBK (2) (3):
Common Equity Tier 1 capital:
Required		810		3.50		793		3.50
Actual		2,061		8.90		2,009		8.86
Tier 1 capital:
Required		1,041		4.50		1,020		4.50
Actual		2,344		10.13		2,252		9.93
Total risk-based capital:
Required		1,850		8.00		1,813		8.00
Actual		3,259		14.08		3,163		13.95

Notes:

(1) The distribution of all of the shares of MHSC to MHFG as a dividend in kind (¥424.4 billion) on April 1, 2013 was deducted from Common Equity Tier 1 capital.

(2) The amounts and ratios were calculated in accordance with Basel III and are included for reference purpose only because the former MHBK was subject to Basel II requirements as of March 31, 2013 as a financial institution without overseas operations to which only domestic capital adequacy requirements applied.

(3) The distribution of all of the shares of MHSC to MHFG as a dividend in kind (¥125.7 billion) on April 1, 2013 was deducted from Common Equity Tier 1 capital.

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Investments (Tables)

12 Months Ended

Mar. 31, 2014

Amortized Cost Gross Unrealized Gains and Losses and Fair Value of Investments Table

The amortized cost, gross unrealized gains and losses, and fair value of available-for-sale and held-to-maturity securities at March 31, 2013 and 2014 are as follows:

	Amortized cost		Gross unrealized gains		Gross unrealized losses		Fair value
	(in millions of yen)
2013
Available-for-sale securities:
Debt securities:
Japanese government bonds		30,709,499		79,378		5,677		30,783,200
Japanese local government bonds		239,695		4,109		47		243,757
U.S. Treasury bonds and federal agency securities		177,438		623		36		178,025
Other foreign government bonds		596,305		1,914		94		598,125
Agency mortgage-backed securities (1)		986,646		20,496		1,429		1,005,713
Residential mortgage-backed securities		430,325		13,889		2,131		442,083
Commercial mortgage-backed securities		246,169		7,487		3,528		250,128
Japanese corporate bonds and other debt securities (2)		2,197,270		22,582		5,288		2,214,564
Foreign corporate bonds and other debt securities (3)		542,958		17,768		1,803		558,923
Equity securities (marketable)		1,699,475		1,440,102		144		3,139,433
Total		37,825,780		1,608,348		20,177		39,413,951
Held-to-maturity securities:
Debt securities:
Japanese government bonds		3,000,403		20,023		82		3,020,344
Total		3,000,403		20,023		82		3,020,344
2014
Available-for-sale securities:
Debt securities:
Japanese government bonds		22,039,640		20,063		3,727		22,055,976
Japanese local government bonds		241,985		2,783		106		244,662
U.S. Treasury bonds and federal agency securities		158,344		434		4,297		154,481
Other foreign government bonds		719,281		2,356		455		721,182
Agency mortgage-backed securities (1)		955,291		13,288		7,705		960,874
Residential mortgage-backed securities		318,955		14,757		1,707		332,005
Commercial mortgage-backed securities		159,289		3,032		1,417		160,904
Japanese corporate bonds and other debt securities (2)		2,015,045		16,316		3,284		2,028,077
Foreign corporate bonds and other debt securities (3)		559,947		10,755		2,193		568,509
Equity securities (marketable)		1,667,669		1,761,025		6,603		3,422,091
Total		28,835,446		1,844,809		31,494		30,648,761
Held-to-maturity securities:
Debt securities:
Japanese government bonds		4,040,083		17,954		220		4,057,817
Total		4,040,083		17,954		220		4,057,817

Notes :

(1) Agency mortgage-backed securities presented in the above table consist of U.S. agency securities and Japanese agency securities, of which the fair values were ¥143,954 million and ¥861,759 million, respectively, at March 31, 2013, and ¥105,553 million and ¥855,321 million, respectively, at March 31, 2014. U.S. agency securities primarily consist of Government National Mortgage Association or Ginnie Mae securities, which are guaranteed by the United States government. All Japanese agency securities are mortgage-backed securities issued by Japan Housing Finance Agency, a Japanese government-sponsored enterprise.

(2) Other debt securities presented in the above table primarily consist of certificates of deposit (“CDs”) and asset-backed securities (“ABS”), of which the total fair values were ¥185,497 million at March 31,2013, and ¥214,488 million at March 31, 2014.

(3) Other debt securities presented in the above table primarily consist of CDs, ABS, and collateral loan obligations (“CLO”), of which the total fair values were ¥243,633 million at March 31,2013, and ¥178,055 million at March 31, 2014.

Investments Classified by Contractual Maturity Date

Securities not due at a single maturity date and securities embedded with call or prepayment options, such as mortgage-backed securities, are included in the table below based on their contractual maturities.

Amortized cost	Due in one year or less		Due after one year through five years		Due after five years through ten years		Due after ten years		Total
	(in millions of yen)
Available-for-sale securities:
Debt securities:
Japanese government bonds		5,926,354		13,876,023		2,237,263		—		22,039,640
Japanese local government bonds		30,346		130,751		80,108		780		241,985
U.S. Treasury bonds and federal agency securities		43,475		75,005		39,864		—		158,344
Other foreign government bonds		507,140		211,949		—		192		719,281
Agency mortgage-backed securities		—		—		—		955,291		955,291
Residential mortgage-backed securities		—		—		—		318,955		318,955
Commercial mortgage-backed securities		4,085		123,455		31,749		—		159,289
Japanese corporate bonds and other debt securities		369,682		1,131,664		326,861		186,838		2,015,045
Foreign corporate bonds and other debt securities		221,916		251,536		83,865		2,630		559,947
Total		7,102,998		15,800,383		2,799,710		1,464,686		27,167,777
Held-to-maturity securities:
Debt securities:
Japanese government bonds		600,047		3,080,346		359,690		—		4,040,083
Total		600,047		3,080,346		359,690		—		4,040,083

Fair value	Due in one year or less		Due after one year through five years		Due after five years through ten years		Due after ten years		Total
	(in millions of yen)
Available-for-sale securities:
Debt securities:
Japanese government bonds		5,926,642		13,882,371		2,246,963		—		22,055,976
Japanese local government bonds		30,384		131,438		81,952		888		244,662
U.S. Treasury bonds and federal agency securities		43,907		72,142		38,432		—		154,481
Other foreign government bonds		507,577		213,355		—		250		721,182
Agency mortgage-backed securities		—		—		—		960,874		960,874
Residential mortgage-backed securities		—		—		—		332,005		332,005
Commercial mortgage-backed securities		4,087		124,981		31,836		—		160,904
Japanese corporate bonds and other debt securities		370,157		1,137,145		329,033		191,742		2,028,077
Foreign corporate bonds and other debt securities		222,527		253,142		89,625		3,215		568,509
Total		7,105,281		15,814,574		2,817,841		1,488,974		27,226,670
Held-to-maturity securities:
Debt securities:
Japanese government bonds		601,750		3,091,769		364,298		—		4,057,817
Total		601,750		3,091,769		364,298		—		4,057,817

Unrealized Loss Position Investments

The following tables show the gross unrealized losses and fair value of available-for-sale and held-to-maturity securities, aggregated by the length of time that individual securities have been in a continuous unrealized loss position, at March 31, 2013 and 2014:

	Less than 12 months				12 months or more				Total
	Fair value		Gross unrealized losses		Fair value		Gross unrealized losses		Fair value		Gross unrealized losses
	(in millions of yen)
2013
Available-for-sale securities:
Debt securities:
Japanese government bonds		5,059,495		1,520		406,684		4,157		5,466,179		5,677
Japanese local government bonds		27,243		47		—		—		27,243		47
U.S. Treasury bonds and federal agency securities		69,168		36		—		—		69,168		36
Other foreign government bonds		207,942		94		—		—		207,942		94
Agency mortgage-backed securities (1)		90,832		1,429		—		—		90,832		1,429
Residential mortgage-backed securities		12,778		9		122,363		2,122		135,141		2,131
Commercial mortgage-backed securities		7,159		111		122,588		3,417		129,747		3,528
Japanese corporate bonds and other debt securities		88,146		333		222,516		4,955		310,662		5,288
Foreign corporate bonds and other debt securities		54,599		114		65,417		1,689		120,016		1,803
Equity securities (marketable)		8,488		128		699		16		9,187		144
Total		5,625,850		3,821		940,267		16,356		6,566,117		20,177
Held-to-maturity securities:
Debt securities:
Japanese government bonds		199,730		82		—		—		199,730		82
Total		199,730		82		—		—		199,730		82
2014
Available-for-sale securities:
Debt securities:
Japanese government bonds		10,526,182		2,871		880,520		856		11,406,702		3,727
Japanese local government bonds		48,471		90		12,730		16		61,201		106
U.S. Treasury bonds and federal agency securities		66,865		2,865		38,432		1,432		105,297		4,297
Other foreign government bonds		203,026		275		7,654		180		210,680		455
Agency mortgage-backed securities (2)		102,904		2,348		76,369		5,357		179,273		7,705
Residential mortgage-backed securities		9,771		137		78,938		1,570		88,709		1,707
Commercial mortgage-backed securities		11,133		117		43,170		1,300		54,303		1,417
Japanese corporate bonds and other debt securities		130,020		359		60,230		2,925		190,250		3,284
Foreign corporate bonds and other debt securities		122,563		1,846		33,960		347		156,523		2,193
Equity securities (marketable)		132,590		6,603		10		—		132,600		6,603
Total		11,353,525		17,511		1,232,013		13,983		12,585,538		31,494
Held-to-maturity securities:
Debt securities:
Japanese government bonds		9,962		40		199,670		180		209,632		220
Total		9,962		40		199,670		180		209,632		220

Notes :

(1) Agency mortgage-backed securities presented in the above table represent U.S. agency securities. U.S. agency securities primarily consist of Government National Mortgage Association or Ginnie Mae securities, which are guaranteed by the United States government.

(2) Agency mortgage-backed securities presented in the above table consist of U.S. agency securities and Japanese agency securities, of which the fair values were ¥105,208 million and ¥74,065 million, respectively, at March 31, 2014. All Japanese agency securities are mortgage-backed securities issued by Japan Housing Finance Agency, a Japanese government-sponsored enterprise.

Other Investments Disclosure

The following table summarizes the composition of Other investments:

	2013		2014
	(in millions of yen)
Equity method investments		225,696		196,015
Investments held by consolidated investment companies		75,780		70,599
Other equity interests		536,659		526,075
Total		838,135		792,689

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Commitments and contingencies

12 Months Ended

Mar. 31, 2014

Commitments and contingencies

23. Commitments and contingencies

Obligations under guarantees

The MHFG Group provides guarantees or indemnifications to counterparties to enhance their credit standing and enable them to complete a variety of business transactions. A guarantee represents an obligation to make payments to third parties if the counterparty fails to fulfill its obligation under a borrowing arrangement or other contractual obligation.

The types of guarantees under ASC 460, “Guarantees” (“ASC 460”) provided by the MHFG Group are described below.

Performance guarantees

Performance guarantees are issued to guarantee customers’ performance under contractual arrangements such as a tender bid on a construction project or the completion of a construction project.

Guarantees on loans

Guarantees on loans include obligations to guarantee the customers’ borrowing contracts. The MHFG Group is required to make payments to the guaranteed parties in the event that customers fail to fulfill obligations under the contracts.

Guarantees on securities

Guarantees on securities include obligations to guarantee securities, such as bonds issued by customers.

Other guarantees

Other guarantees include obligations to guarantee customers’ payments, such as tax payments.

Guarantees for the repayment of trust principal

The MHFG Group provides certain trust products with guarantees for the repayment of trust principal, e.g., loan trusts and certain jointly operated designated money trusts. Pursuant to Japanese trust-related laws, trustees are prohibited from compensating beneficiaries for any loss in the beneficial interests in each trust. However, under a special condition of the Japanese trust-related laws, trust banks as trustees are allowed to enter into an agreement to provide compensation for any loss in the principal of the trust. The MHFG Group manages and administers the trust assets to minimize exposures against losses from the guarantees for the repayment of trust principal, including writing-off impaired loans and charging it to the trust account profits. In performing its fiduciary duties, the MHFG Group also manages the trust assets separately from its own proprietary assets on behalf of customers and keeps separate records for the trust activities. The MHFG Group consolidates certain guaranteed principal money trusts. See Note 25 “Variable interest entities and securitizations” for further discussion of the guaranteed principal money trust. The contract amounts of guarantees for repayment of unconsolidated trust principal are presented in the tables below.

Part of the trust account profits is set aside as a reserve in trust accounts to absorb losses in the trust asset portfolios in accordance with relevant Japanese laws concerning the trust business and/or trust agreements. Statutory reserves for loan trusts and reserves for jointly operated designated money trusts are calculated based on the trust principal or the balance of loans and other assets in the trust accounts. Since the probability of principal indemnification is judged to be remote, the MHFG Group had no related reserve for credit losses recorded in its consolidated financial statements.

Liabilities of trust accounts

The MHFG Group, as trustee, may enter into an agreement with a third party who is not the party to the relevant trust agreement to the extent necessary to handle the trust affairs for the purpose of fulfilling the objectives of the trust and, as such, the trustee shall be allowed to assume certain liabilities. Pursuant to Japanese trust-related laws, the trustee is ultimately liable to pay those liabilities out of its proprietary assets in the event that the trust assets are insufficient to cover those liabilities. The amount of trust liabilities rarely exceeds the amount of trust assets and, therefore, those liabilities are generally covered by the corresponding trust assets. To avoid the demand for payment out of the proprietary assets, the trustee can enter into a special covenant of limited liability under which the trust creditors agree to limit the trustee’s liability to the value of the trust assets and to waive the right for compulsory execution against the trustee’s proprietary assets. The MHFG Group regularly monitors the condition of trust accounts to minimize exposures against making payment.

The amounts of such liabilities in the trust accounts, excluding those with the special covenant of limited liability, are presented in the tables below. Liabilities of trust accounts principally include obligations to return collateral under security lending transactions and other transactions.

Derivative financial instruments

Certain written options and credit default swaps are deemed guarantees pursuant to the definition of guarantees in ASC 460 if these contracts require the MHFG Group to make payments to counterparties based on changes in an underlying instrument or index that is related to an asset, a liability, or an equity security of the counterparties. The MHFG Group’s payments could involve a gross settlement or a net settlement. Because it is difficult in practice to determine whether the counterparty has the asset, the liability or the equity security relating to the underlying, the MHFG Group has decided to include all credit default swaps and written options, excluding written options outside the scope of ASC 460, in the guarantee disclosures.

Carrying amount

The MHFG Group records all guarantees and similar obligations subject to ASC 460 at fair value on the consolidated balance sheets at the inception of the guarantee. The total carrying amount of guarantees and similar obligations at March 31, 2013 and 2014 was ¥512 billion and ¥ 422 billion, respectively, and was included in Other liabilities and Trading account liabilities. The total includes the carrying amounts of derivatives that are deemed to be guarantees, which amounted to ¥493 billion and ¥404 billion at March 31, 2013 and 2014, respectively.

Maximum exposure under guarantee contracts

The table below summarizes the remaining term and maximum potential amount of future payments by type of guarantee at March 31, 2013 and 2014. The maximum potential amount of future payments disclosed below represents the contractual amounts that could be repaid in the event of the guarantees being executed, without consideration of possible recoveries under recourse provisions or from collateral held. With respect to written options included in derivative financial instruments in the table below, in theory, the MHFG Group is exposed to unlimited losses; therefore, the table shows the notional amounts of the contracts as a substitute for the maximum exposure.

The MHFG Group, when necessary, requires collateral such as cash, investment securities and real estate or third-party guarantees depending on the amount of credit risk involved, and employs means such as sub-participation to reduce the credit risk associated with guarantees. The maximum exposure or notional amount below does not represent the expected losses from the execution of the guarantees.

2013	Maximum potential/Contractual or Notional amount		Amount by expiration period
			One year or less		After one year through five years		After five years
	(in billions of yen)
Performance guarantees		1,750		935		619		196
Guarantees on loans		452		159		51		242
Guarantees on securities		146		19		127		—
Other guarantees		1,068		826		217		25
Guarantees for the repayment of trust principal		171		—		133		38
Liabilities of trust accounts		8,606		8,428		72		106
Derivative financial instruments		23,582		10,185		11,837		1,560
2014	Maximum potential/Contractual or Notional amount		Amount by expiration period
			One year or less		After one year through five years		After five years
	(in billions of yen)
Performance guarantees		1,985		1,125		708		152
Guarantees on loans		399		173		21		205
Guarantees on securities		170		42		128		—
Other guarantees		1,249		991		220		38
Guarantees for the repayment of trust principal		158		—		125		33
Liabilities of trust accounts		11,158		10,962		78		118
Derivative financial instruments		21,422		8,643		11,391		1,388

The table below presents the maximum potential amount of future payments of performance guarantees, guarantees on loans, guarantees on securities and other guarantees classified based on internal ratings at March 31, 2013 and 2014:

	2013		2014
	(in billions of yen)
Investment grade		2,387		2,673
Non-investment grade		1,029		1,130
Total		3,416		3,803

Note: Investment grade in the internal rating scale generally corresponds to BBB- or above in external rating scale.

Other off-balance-sheet instruments

In addition to guarantees, the MHFG Group issues other off-balance-sheet instruments to its customers, such as lending-related commitments and commercial letters of credit. Under the terms of these arrangements, the MHFG Group is required to extend credit or make certain payments upon the customers’ request.

Commitments to extend credit

Commitments to extend credit are legally binding agreements to lend to customers on demand. They usually have set maturity dates. These agreements differ from guarantees in that they are generally revocable or contain provisions that enable the MHFG Group to avoid payment or reduce the amount of credit extended under certain conditions, such as the deterioration of the borrower’s financial condition or other reasonable conditions. The MHFG Group monitors the financial condition of the potential borrowers throughout the commitment period to determine whether additional collateral or changes in the terms of the commitment are necessary. Since many of these commitments to extend credit expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements.

Commitments to invest in securities

Commitments to invest in securities include legally binding contracts to make additional contributions to investment funds, such as venture capital funds or corporate recovery funds in accordance with the terms of investment agreements.

Commercial letters of credit

Commercial letters of credit are issued in connection with customers’ trade transactions. Normally, the customers cannot receive the goods until they make payment to a bank, and therefore these commercial letters of credit are collateralized by the underlying goods. Upon issuance of commercial letters of credit, the MHFG Group monitors the credit risk associated with these transactions to determine if additional collateral is required.

The table below summarizes the contractual amounts with regard to these undrawn commitments at March 31, 2013 and 2014:

	2013		2014
	(in billions of yen)
Commitments to extend credit (Note)		59,101		59,402
Commercial letters of credit		608		611
Total		59,709		60,013

Note: Commitments to extend credit include commitments to invest in securities.

Allowance for losses on off-balance-sheet instruments

The amounts of an allowance for losses on off-balance-sheet instruments at March 31, 2013 and 2014 were ¥102 billion and ¥121 billion, respectively.

Leases

The MHFG Group leases certain office space and equipment under noncancelable agreements. The lease periods for these leases range from less than 1 year to around 30 years. These leases include cancellation clauses with penalties of a maximum of approximately 5 years-worth of rentals and/or periodic adjustment clauses of rentals. Future minimum lease payments for capitalized leases and future minimum rental payments for operating leases at March 31, 2014 were as follows:

	Capitalized leases		Operating leases
	(in millions of yen)
Fiscal year ending March 31:
2015		6,479		48,233
2016		5,929		40,195
2017		5,186		35,584
2018		4,547		31,556
2019		3,820		29,237
2020 and thereafter		2,068		74,596
Total minimum lease/rental payments		28,029		259,401
Amount representing interest		1,349
Present value of minimum lease payments		26,680

Total rental expense for the fiscal years ended March 31, 2012, 2013 and 2014 was ¥101,003 million, ¥98,459 million and ¥95,941 million, respectively.

During prior years, the MHFG Group’s major banking subsidiaries sold their head offices (including land, buildings, facilities and equipment) to third parties. Concurrent with the sales, these subsidiaries leased the properties back for periods of 5 and 10 years for total rental payments for these periods of ¥214,690 million. The terms of certain lease agreements were changed during the fiscal years ended March 31, 2009, 2011, 2012 and 2014, and the total rental payments for these periods increased to ¥282,832 million, consequently. The MHFG Group accounted for the transactions as operating leases. The future minimum rental payments under the terms of the related lease agreements were ¥29,879 million, ¥15,907 million and ¥69,556 million at March 31, 2012, 2013 and 2014, respectively.

During the fiscal year ended March 31, 2014, MHFG began to lease its head office from a third party and accounted for the lease arrangement as operating lease.

Legal proceedings

The MHFG Group is involved in normal collection proceedings initiated by the Group and other legal proceedings in the ordinary course of business.

The Group’s Indonesian subsidiary acts as collateral agent for the trustee of bond issuances made by subsidiaries of Asia Pulp & Paper Company Ltd. (“APP”). In that role, the subsidiary is involved in a dispute between the bondholders and such APP subsidiaries in their capacities as the issuers, guarantors and/or pledgors of security for the bonds relating to foreclosure proceedings on the collateral and has been named as a defendant in a lawsuit brought by the obligors under the bonds in Indonesia. The Group’s consolidated financial statements do not include a reserve in relation to this dispute because the Group does not believe that the resolution of this matter will have a significant impact on the consolidated financial condition or results of operations of the Group, although there can be no assurance as to the foregoing.

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Noncontrolling interests in consolidated subsidiaries

12 Months Ended

Mar. 31, 2014

Noncontrolling interests in consolidated subsidiaries

24. Noncontrolling interests in consolidated subsidiaries

Noncontrolling interests represent the equity of the remaining outstanding voting stock of subsidiaries not owned by the MHFG Group. The changes in the noncontrolling interests in fiscal years ended March 31, 2012, 2013 and 2014 consisted of noncontrolling interests in the net income or loss of subsidiaries, noncontrolling interests in changes in other comprehensive income of subsidiaries and changes in the ownership percentage of the Group in respect of certain subsidiaries.

During the fiscal year ended March 31, 2012, the MHFG Group exchanged certain MHFG’s common stock for 30.15, 40.80 and 46.02 percent of the voting equity interests in MHTB, the former MHSC and the former MHIS, respectively, in order for those subsidiaries to become MHFG’s wholly-owned subsidiaries. See Note 14 “Common stock” for further details of these transactions. Subsequently, the Group transferred 5.34 percent of the voting equity interests in the former MHSC to The Norinchukin Bank.

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Basis of presentation and summary of significant accounting policies

12 Months Ended

Mar. 31, 2014

Basis of presentation and summary of significant accounting policies

1. Basis of presentation and summary of significant accounting policies

Basis of presentation

Mizuho Financial Group, Inc. (“MHFG”) is a joint stock corporation with limited liability under the laws of Japan. MHFG, through its subsidiaries (“the MHFG Group”, or “the Group”), provides domestic and international financial services in Japan and other countries. MHFG’s subsidiaries are segmented on the basis of the nature of the financial products and services. Mizuho Bank, Ltd. (“MHBK”) is a banking subsidiary and offers a wide range of financial products and services mainly in relation to deposits, lending and exchange settlement to individuals, small and medium enterprises (“SMEs”), large corporations, financial institutions, public sector entities and foreign corporations, including foreign subsidiaries of Japanese corporations. Mizuho Trust & Banking Co., Ltd. (“MHTB”) is a trust bank subsidiary and offers mainly trust-related products and consulting services. Mizuho Securities Co., Ltd. (“MHSC”) is a securities and investment banking subsidiary and offers full-line securities services to corporations, financial institutions, public sector entities and individuals. Other major subsidiaries include Trust & Custody Services Bank, Ltd. (“TCSB”), Mizuho Capital Co., Ltd., and Mizuho Business Financial Center Co., Ltd. See Note 31 “Business segment information” for further discussion of the Group’s segment information.

The accompanying consolidated financial statements have been prepared in accordance with the accounting principles generally accepted in the United States of America (“U.S. GAAP”). The consolidated financial statements are stated in Japanese yen, the currency of the country in which MHFG is incorporated and principally operates.

The accompanying consolidated financial statements include the accounts of MHFG and its subsidiaries. MHFG’s fiscal year ends on March 31 and fiscal year of certain subsidiaries ends on December 31. The necessary adjustments have been made to the consolidated financial statements if significant intercompany transactions took place during the three-months periods. When determining whether to consolidate investee entities, we performed a careful analysis of the facts and circumstances of a particular relationship among entities as well as ownership of voting shares. The consolidated financial statements also include the accounts of the VIEs for which MHFG or its subsidiaries have been determined to be the primary beneficiary under the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 810, “Consolidation” (“ASC 810”). All significant intercompany transactions and balances have been eliminated in consolidation. The MHFG Group accounts for investments in entities over which it has significant influence using the equity method of accounting. These investments are included in Other investments and the Group’s proportionate share of income or loss is included in Investment gains (losses)—net.

Use of estimates

The preparation of the consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect reported amounts and related disclosures. Specific areas, among others, requiring the application of management’s estimates and judgment include assumptions pertaining to the allowance for loan losses, allowance for losses on off-balance-sheet instruments, deferred tax assets, derivative financial instruments, investments and pension and other employee benefits. Actual results could differ from estimates and assumptions made.

Definition of cash and due from banks

For purposes of the consolidated statements of cash flows, Cash and due from banks include cash on hand, cash items in the process of collection and noninterest-bearing deposits with banks.

Translation of foreign currency financial statements and foreign currency transactions

Financial statements of overseas entities are prepared using the functional currency of each entity and translated into Japanese yen for consolidation purposes. Assets and liabilities are translated using the fiscal-year-end exchange rate of each functional currency, and income and expense using the average rate of each functional currency for the period.

Foreign currency translation gains and losses related to the financial statements of overseas entities of the MHFG Group, net of related income tax effects, are credited or charged directly to Foreign currency translation adjustments, a component of Accumulated other comprehensive income (loss), net of tax (“AOCI”). The tax effects of gains and losses related to the foreign currency translation of financial statements of overseas entities are not recognized unless it is apparent that the temporary differences will reverse in the foreseeable future.

Assets and liabilities denominated in foreign currencies are translated into Japanese yen at the fiscal-year-end foreign exchange rates, and gains and losses resulting from such translation are included in Foreign exchange gains (losses)—net, as appropriate. Foreign currency denominated income and expenses are translated using the average exchange rates for the period.

Call loans and call money

Call loans and call money represent lending/borrowing through the Japanese short-term money market to/from other financial institutions such as banks, insurance companies, and securities brokerage houses.

Repurchase and resale agreements, securities lending and borrowing and other secured financing transactions

Securities sold under agreements to repurchase (“repurchase agreements”), securities purchased under agreements to resell (“resale agreements”) and securities lending and borrowing transactions are accounted for as secured financing or lending transactions when control over the underlying securities is not deemed to be surrendered by the transferor. Otherwise, they are recorded as sales of securities with related forward repurchase commitments or purchases of securities with related forward resale commitments in accordance with ASC 860, “Transfers and Servicing” (“ASC 860”).

Repurchase transactions where the maturity of the security transferred as collateral matches the maturity of the repurchase agreements (“repo-to-maturity transactions”) are accounted for as sales rather than collateralized financings where the criteria for derecognition of the securities transferred under ASC 860 are met. There were no such transactions accounted for as sales as of March 31, 2013 and 2014.

Under resale agreements, securities borrowing and certain derivatives transactions, the MHFG Group receives collateral in the form of securities. In many cases, the MHFG Group is permitted to sell or repledge the securities obtained as collateral. Disclosures of such collateral are presented in Note 8 “Pledged assets and collateral”. With respect to repurchase agreements, securities lending, and certain derivative transactions, counterparties may have the right to sell or repledge securities that the MHFG Group has pledged as collateral. The MHFG Group separately discloses these pledged securities in the consolidated balance sheets.

The MHFG Group monitors credit exposure arising from resale agreements, repurchase agreements, securities borrowing and securities lending transactions on a daily basis, and additional collateral is obtained from or returned to counterparties, as appropriate.

Trading securities and trading securities sold, not yet purchased

Trading securities consist of securities and money market instruments that are bought and held principally for the purpose of reselling in the near term with the objective of generating profits on short-term fluctuations in price. Trading securities sold, not yet purchased, are securities and money market instruments sold to third parties that the MHFG Group does not own and is obligated to purchase at a later date to cover the short position. Trading securities and trading securities sold, not yet purchased, are recorded on the trade date. Trading securities and trading securities sold, not yet purchased, are recorded at fair value in the consolidated balance sheets in Trading account assets and Trading account liabilities with realized and unrealized gains and losses recorded on a trade date basis in Trading account gains (losses)—net in the consolidated statements of income. Interest and dividends on trading securities, including securities sold, not yet purchased, are recorded in Interest and dividend income or Interest expense on an accrual basis.

Investments

Debt securities that the MHFG Group has both the positive intent and ability to hold to maturity are classified as Held-to-maturity securities and carried at amortized cost. Debt securities that the MHFG Group may not hold to maturity and any marketable equity securities, other than those classified as trading securities, are classified as Available-for-sale securities, and are carried at fair value, with unrealized gains and losses reported in AOCI.

The credit component of an other-than-temporary impairment of a debt security is reported in Investment gains (losses)—net and the noncredit component is reported in Other comprehensive income (loss). See Note 3 “Investments” for further discussion of impairment. Interest and dividends, as well as amortization of premiums and accretion of discounts, are reported in Interest and dividend income. Amortization of premiums and accretion of discounts on debt securities are recognized over the remaining maturity under the interest method. Gains and losses on disposition of investments are computed using the first-in first-out method for debt securities and the average method for equity securities, and are recorded on the trade date.

Other investments include marketable and non-marketable equity securities accounted for using the equity method, marketable and non-marketable investments held by consolidated investment companies carried at fair value under specialized industry accounting principles for investment companies, and other non-marketable equity securities carried at cost, less other-than-temporary impairment, if any.

Derivative financial instruments

Derivative financial instruments are bought and held principally for the purpose of market making for customers, proprietary trading in order to generate trading revenues and fee income, and also to manage the MHFG Group’s exposure to interest rate, credit and market risks related to asset and liability management. Such derivative financial instruments include interest rate, foreign currency, equity, commodity and credit default swap agreements, options, caps and floors, and financial futures and forward contracts.

Derivatives bought and held for trading purposes are recorded in the consolidated balance sheets at fair value in Trading account assets and Trading account liabilities. The fair value of derivatives in a gain position and a loss position are reported as Trading account assets and Trading account liabilities, respectively.

Derivatives used for asset and liability management include contracts that qualify for hedge accounting under ASC 815, “Derivatives and Hedging” (“ASC 815”). To be eligible for hedge accounting, derivative instruments must be highly effective in achieving offsetting changes in fair values or variable cash flows of the hedged items attributable to the particular risk being hedged. All qualifying hedging derivatives are valued at fair value and included in Trading account assets or Trading account liabilities. Derivatives that do not qualify for hedge accounting under ASC 815 are treated as trading positions and are accounted for as such. The fair value amounts recognized for such derivatives are not offset against the amounts recognized for the right to reclaim cash collateral or the obligation to return cash collateral under master netting agreement with the same counterparty.

The fair value of derivative financial instruments is determined based on quoted market prices or broker-dealer quotes, if available. If not, the fair value is estimated using quoted market prices for similar instruments, option or binomial pricing models or a present value cash flow analysis, utilizing current observable market information, where available. In determining the fair value, the Group considers various factors such as exchange or over-the-counter market quotes, time value of money and volatility factors for options and warrants, observed prices for similar or synthetic instruments, and counterparty credit quality including potential exposure.

Changes in the fair value of all derivatives are recorded in earnings, except for derivatives qualifying as net investment hedges under ASC 815 which are recorded in AOCI. The changes in the fair values of all derivatives relating to foreign currency exchange rates are included in Foreign exchange gains (losses)—net and Trading account gains (losses)—net. Other elements of the changes in the fair values, including interest rate, equity and credit related components except that of certain credit derivatives hedging the credit risk in the corporate loan portfolio, are recognized in Trading account gains (losses)—net. The net gain (loss) resulting from changes in the fair values of certain credit derivatives where the Group purchases protection to mitigate its credit risk exposure related to its corporate loan portfolio is recorded in Other noninterest income (expenses).

Certain financial and hybrid instruments often contain embedded derivative instruments that possess implicit or explicit contract terms similar to those of a derivative instrument. Such derivative instruments are required to be fair-valued separately from the host contracts if they meet the bifurcation criteria of an embedded derivative. Such criteria include whether the entire instrument is not marked to market through earnings, the economic characteristics and risks of the embedded contract terms are not clearly and closely related to those of the host contract and the embedded contract terms would meet the definition of a derivative on a stand-alone basis.

Loans

Loans are generally carried at the principal amount adjusted for unearned income and deferred net nonrefundable loan fees and costs. Loan origination fees, net of certain direct origination costs are deferred and recognized over the contractual life of the loan as an adjustment of yield using a method that approximates the interest method. Interest income on performing loans is accrued and credited to income as it is earned. Unearned income and discounts or premiums on purchased loans are deferred and recognized over the life of the loan using a method that approximates the interest method.

Loans are considered impaired when, based on current information and events, it is probable that the MHFG Group will be unable to collect all the scheduled payments of principal and interest when due according to the contractual terms of the loan. Factors considered by management in determining if a loan is impaired include delinquency status and the ability of the debtor to make payment of the principal and interest when due. Impaired loans include loans past due for 90 days or more and restructured loans that meet the definition of troubled debt restructuring (“TDR”) in accordance with ASC 310 “Receivables” (“ASC 310”).

All of the MHFG Group’s impaired loans are designated as nonaccrual loans and thus interest accrual and amortization of net origination fees are suspended and capitalized interest is written off. Cash received on nonaccrual loans is accounted for as reduction of the loan principal if the ultimate collectibility of the principal amount is uncertain, otherwise, as interest income. Loans are not restored to accrual status until interest and principal payments are current and future payments are reasonably assured. Impaired loans return to non-impaired loans and accrual status, when the MHFG Group determines that the borrower poses no problems regarding current certainty of debt fulfillment. In general, such determination is made if the borrower qualifies for an obligor rating of E2 or above and is not classified as a special attention obligor. With respect to loans restructured in TDR, in general, such loans return to non-impaired loans, and accrual status, when the borrower qualifies for an obligor rating of D or above. See Note 4 “Loans” for the definitions of obligor ratings.

Loans that have been identified to be sold are classified as loans held for sale within Other assets and are accounted for at the lower of cost or fair value on an individual loan basis. If management decides to retain certain loans held for sale for the foreseeable future or until maturity or payoff, such items are transferred to Loans at the lower of cost or fair value.

Securitization

The MHFG Group engages in securitization activities related to mortgage loans and other loans in the normal course of business. The MHFG Group records a loan securitization as a sale when the transferred loans are legally isolated from the Group’s creditors and the accounting criteria for a sale are met in accordance with ASC 860. Otherwise, the transfer is accounted for as a collateralized borrowing.

Allowance and provision (credit) for loan losses

The MHFG Group maintains an appropriate amount of allowance for loan losses to absorb probable losses inherent in the loan portfolio and makes adjustments to such allowance through the Provision (credit) for loan losses in the consolidated statements of income. Loan principal that management judges to be uncollectible, based on detailed loan reviews and a credit quality assessment, is charged off against the allowance for loan losses. In general, the MHFG Group charges off loans when the Group determines that the debtor should be classified as substantially bankrupt or bankrupt. See Note 4 “Loans” for the definitions of obligor categories. Obligors classified in the retail portfolio segment are generally determined to be substantially bankrupt when they are past due for more than six months, and as for other obligors, the Group separately monitors the credit quality of each obligor without using time-based triggers. Subsequent recoveries of previously charged-off loan balances are recorded as an increase to the allowance for loan losses as the recoveries are received.

The credit quality review process and the credit rating process serve as the basis for determining the allowance for loan losses. Through such processes loans are categorized into groups to reflect the probability of default, whereby the MHFG Group’s management assesses the ability of borrowers to service their debt, taking into consideration current financial information, ability to generate cash, historical payment experience, analysis of relevant industry segments and current trends. In determining the appropriate level of the allowance, the MHFG Group evaluates the probable loss by category of loan based on its risk type and characteristics.

The allowance for loan losses is determined in accordance with ASC 310 and ASC 450, “Contingencies” (“ASC 450”). The MHFG Group measures the impairment of a loan when it is probable that the Group will be unable to collect all amounts due according to the contractual terms of the loan agreement, based on (1) the present value of expected future cash flows, after considering the restructuring effect and subsequent payment default with respect to TDRs, discounted at the loan’s initial effective interest rate, (2) the loan’s observable market price, or (3) the fair value of the collateral if the loan is collateral dependent. The collateral that the Group obtains for loans consists primarily of real estate or listed securities. In obtaining the collateral, the Group evaluates the fair value of the collateral and its legal enforceability. The Group also conducts subsequent re-evaluations at least once a year. As it pertains to real estate, valuation is generally conducted by an appraising subsidiary which is independent from the Group’s loan origination sections by using generally accepted valuation techniques such as (1) the replacement cost approach, (2) the sales comparison approach or (3) the income approach. In the case of large real estate collateral, the Group generally retains third-party appraisers to conduct the valuation. As to listed securities, observable market prices are used for valuation.

The formula allowance is applied to groups of small balance, homogeneous loans that are collectively evaluated for impairment and for non-homogeneous loans that have not been identified as impaired. The evaluation of inherent loss in respect of these loans involves a high degree of uncertainty, subjectivity and judgment because probable loan losses are not easily identifiable or measurable. In determining the formula allowance, the MHFG Group relies on a statistical analysis that incorporates loss rates based on its own historical loss experience and third party data such as the number of corporate default cases which is updated once a year. In determining the allowance amount, the Group analyzes (1) the probability of default: (a) through the most recently available data for the past six years, in the case of normal obligors; and (b) through the most recently available data since April 2002, in the case of watch obligors; and (2) the loss given default through the most recently available data for the past six years. As it pertains to TDR loans in the retail portfolio segment, which are subject to collective evaluation for impairment, the restructuring itself, as well as subsequent payment default, if any, are considered in determining obligor ratings.

The historical loss rate is adjusted, where appropriate, to reflect current factors, such as general economic and business conditions affecting the key lending areas of the MHFG Group, credit quality trends, specific industry conditions within portfolio segments, and recent loss experience in particular segments of the portfolio. The estimation of the formula allowance is back-tested on a periodic basis by comparing the allowance with the actual results subsequent to the balance sheet date.

Allowance and provision (credit) for losses on off-balance-sheet instruments

The MHFG Group maintains an allowance for losses on off-balance-sheet credit instruments, such as guarantees, standby letters of credit, commitments to invest in securities and commitments to extend credit, in the same manner as the allowance for loan losses. The allowance is recorded in Other liabilities. Net changes in the allowance for losses on off-balance-sheet instruments are accounted for in the Provision (credit) for losses on off-balance-sheet instruments in the consolidated statements of income.

Premises and equipment

Premises and equipment are stated at historical cost, and depreciation and amortization are recorded over the estimated useful lives of the assets, except for leasehold improvements, which are amortized over the shorter of the estimated useful lives of the assets or the lease term. Depreciation and amortization are principally computed in accordance with the straight-line method with respect to buildings and leasehold improvements and in accordance with the declining-balance method with respect to other premises and equipment.

The useful lives of premises and equipment are as follows:

	Years
Buildings		3 to 50
Equipment and furniture		2 to 20
Leasehold improvements		2 to 50

Regular repairs and maintenance costs that do not extend the estimated useful life of an asset are charged to expense as incurred. Upon sale or disposition of premises and equipment, the cost and related accumulated depreciation or amortization are removed from the accounts, and any gains or losses on disposal are included in Gains on disposal of premises and equipment or Occupancy expenses.

Impairment of long-lived assets

The MHFG Group’s long-lived assets that are held for use are reviewed periodically for events or changes in circumstances that indicate possible impairment. The Group’s impairment review is based on an undiscounted cash flow analysis of a group of assets, combined with associated liabilities, at the lowest level for which identifiable cash flows exist. Impairment occurs when the carrying value of the asset group exceeds the future undiscounted cash flows that the asset group is expected to generate. When impairment is identified, the future cash flows are then discounted to determine the estimated fair value of the asset group and an impairment charge is recorded for the difference between the carrying value and the estimated fair value of the asset group. The long-lived assets to be disposed of by sale are carried at the lower of the carrying amount or fair value, less estimated cost to sell.

Software

Internal and external costs incurred in connection with developing and obtaining software for internal use that occur during the application development stage are capitalized. Such costs include salaries and benefits for employees directly involved with and who devote time to the project, to the extent such time is incurred directly on the internal use software project. The capitalization of software ceases when the software project has been substantially completed. The capitalized software is amortized on a straight-line basis over the estimated useful life, generally 5 to 10 years. Internal use software is reviewed for impairment when triggering events occur.

Goodwill

Goodwill represents the excess of the total fair value of the acquired company, which consists of the consideration transferred, the fair value of any interest in the acquiree already held by the acquirer and the fair value of any noncontrolling interest in the acquiree over the fair value of net identifiable assets acquired at the date of acquisition in a business combination. The MHFG Group accounts for goodwill in accordance with ASC 350, “Intangibles—Goodwill and Other” (“ASC 350”). Goodwill is recorded at a designated reporting unit level for the purpose of assessing impairment. An impairment loss is recorded to the extent the carrying amount of goodwill exceeds its estimated fair value.

Intangible assets

Intangible assets having definite useful lives are amortized over their estimated useful lives on either a straight-line basis or the method that reflects the pattern in which the economic benefits of the intangible assets are consumed. Intangible assets acquired by the merger of MHSC and Shinko Securities Co., Ltd. (“Shinko”) consist primarily of customer relationship intangibles, and are amortized over a weighted-average amortization period of 16 years. Intangible assets having indefinite useful lives are not amortized and are subject to impairment tests. An impairment loss is recorded to the extent the carrying amount of indefinite-lived intangible asset exceeds its estimated fair value. For intangible assets subject to amortization, an impairment loss is recorded if the carrying amount is not recoverable and exceeds its estimated fair value.

Pension and other employee benefits

MHFG and certain subsidiaries sponsor severance indemnities and pension plans, which provide defined benefits to retired employees. Periodic expense and accrued liabilities are computed based on the actuarial present value of benefits, net of investment returns expected from plan assets and their fair values at the balance sheet date. Net periodic expense is charged to Salaries and employee benefits.

Stock-based compensation

The compensation cost associated with stock compensation-type stock options is measured at fair value using the Black-Scholes option pricing model.

Long-term debt

Premiums, discounts and issuance costs of long-term debt are amortized based on a method that approximates the interest method over the respective terms of the long-term debt.

Obligations under guarantees

The MHFG Group provides customers with a variety of guarantees and similar arrangements, including standby letters of credit, financial and performance guarantees, credit protections, and liquidity facilities. The MHFG Group recognizes guarantee fee income over the guarantee period. The MHFG Group receives such a guarantee fee at the inception of the guarantee or in installments and, in either case, the present value of the total fees approximates the fair value of the guarantee.

Fair Value Measurements

The MHFG Group carries certain of its financial assets and liabilities at fair value on a recurring basis. These financial assets and liabilities are primarily composed of trading account assets, trading account liabilities and available-for-sale securities. In addition, the Group measures certain financial assets and liabilities, at fair value on a non-recurring basis. Those assets and liabilities primarily include items that are measured at the lower of cost or fair value such as loans held for sale, and items that were initially measured at cost and have been written down to fair value due to impairments, such as loans and other investments.

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. In accordance with ASC 820, “Fair Value Measurement” (“ASC 820”), the Group classifies its financial assets and liabilities into the fair value hierarchy (Level 1, 2, and 3). See Note 28 “Fair value” for the detailed definition of each level.

When determining fair value, the MHFG Group considers the principal or most advantageous market in which the Group would transact and considers assumptions that market participants would use when pricing the asset or liability. The Group maximizes the use of observable inputs and minimizes the use of unobservable inputs when measuring fair value. See Note 28 “Fair value” for descriptions of valuation methodologies used for its assets and liabilities by product.

Fees and commissions

Fee revenue is recognized when all of the following criteria have been met: persuasive evidence of an agreement exists, services have been rendered, the price is fixed or determinable, and collectibility is reasonably assured. Fees on securities-related business and fees on funds transfer and collection services are generally recognized as revenue when the related services are performed. Fees on credit-related business, excluding loan origination fees to be deferred and recognized over the loan period as an adjustment of yield, are generally recognized either at one time when the service is rendered or over the related transaction period. Fees and commissions are presented on a gross basis and exclusive of consumption taxes.

Income taxes

Income taxes are accounted for in accordance with ASC 740, “Income Taxes” (“ASC 740”). Deferred income taxes reflect the net tax effects of (1) temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the corresponding amounts used for income tax purposes, and (2) operating loss and tax credit carryforwards. A valuation allowance is recorded for any portion of the deferred tax assets unless it is more likely than not that the deferred tax assets will be realized. Deferred income tax benefit or expense is recognized for the changes in the net deferred tax asset or liability between periods.

Earnings per common share

Basic earnings per common share are computed by dividing net income attributable to MHFG common shareholders by the weighted average number of common shares outstanding during the fiscal year. Diluted earnings per common share reflect the possible exercise of all convertible securities, such as convertible preferred stock to the extent they are not anti-dilutive. See Note 18 “Earnings per common share” for the computation of basic and diluted earnings per common share.

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Maximum Potential Amount of Future Payments of Performance Guarantees Guarantees on Loans Guarantees on Securities and Other Guarantees Classified Based on Internal Ratings (Detail) (JPY ¥) In Billions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	¥ 3,803		¥ 3,416
Investment grade
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	2,673	[1]	2,387	[1]
Non-investment grade
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	¥ 1,130		¥ 1,029

[1] Investment grade in the internal rating scale generally corresponds to BBB- or above in external rating scale.

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Variable interest entities and securitizations

12 Months Ended

Mar. 31, 2014

Variable interest entities and securitizations

25. Variable interest entities and securitizations

Variable interest entities

In the normal course of business, the MHFG Group is involved with VIEs primarily through the following types of transactions: asset-backed commercial paper/loan programs, asset-backed securitizations, investments in securitization products, investment funds, trust arrangements, and structured finance. The Group consolidates certain of these VIEs, where the Group is deemed to be the primary beneficiary because it has both (1) the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance and (2) the obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE. The MHFG Group reassesses whether it is primary beneficiary on an ongoing basis as long as the Group has any continuing involvement with the VIE. There are also other VIEs, where the Group determines that it is not the primary beneficiary but has significant variable interests. In evaluating the significance of the variable interests, the Group comprehensively takes into consideration the extent of its involvement with each VIE, such as the seniority of its investments, the share of its holding in each tranche and the variability it expects to absorb, as well as other relevant facts and circumstances. The likelihood of loss is not necessarily relevant to the determination of significance, and therefore, “significant” does not imply that there is high likelihood of loss. The maximum exposure to loss that is discussed in this section refers to the maximum loss that the Group could be required to record in its consolidated statements of income as a result of its involvement with the VIE. This represents exposures associated with both on-balance-sheet assets and off-balance-sheet liabilities related to the VIE. Further, this maximum potential loss is disclosed regardless of the probability of such losses and, therefore, it is not indicative of the ongoing exposure which is managed within the Group’s risk management framework.

The tables below show consolidated assets of the Group’s consolidated VIEs as well as total assets and maximum exposure to loss for its significant unconsolidated VIEs, as of March 31, 2013 and 2014:

	Consolidated VIEs		Significant unconsolidated VIEs
2013	Consolidated assets		Total assets		Maximum exposure to loss
	(in billions of yen)
Asset-backed commercial paper/loan programs		2,212		—		—
Asset-backed securitizations		385		463		37
Investments in securitization products		—		530		206
Investment funds		1,175		2,770		302
Trust arrangements and other		39		—		—
Total		3,811		3,763		545

	Consolidated VIEs		Significant unconsolidated VIEs
2014	Consolidated assets		Total assets		Maximum exposure to loss
	(in billions of yen)
Asset-backed commercial paper/loan programs		2,403		—		—
Asset-backed securitizations		423		385		39
Investments in securitization products		181		531		200
Investment funds		1,508		2,935		387
Trust arrangements and other		38		—		—
Total		4,553		3,851		626

The Group has not provided financial or other support to consolidated or unconsolidated VIEs that the Group was not previously contractually required to provide.

The tables below present the carrying amounts and classification of assets and liabilities on the MHFG Group’s balance sheets that relate to its variable interests in the significant unconsolidated VIEs, as of March 31, 2013 and 2014:

Assets on balance sheets related to unconsolidated VIEs:	2013		2014
	(in billions of yen)
Trading account assets		46		29
Investments		206		222
Loans		308		316
Total		560		567
Liabilities on balance sheets and maximum exposure to loss related to unconsolidated VIEs:	2013		2014
	(in billions of yen)
Payables under securities lending transactions		14		4
Total		14		4
Maximum exposure to loss		545		626

Asset-backed commercial paper/loan programs

The MHFG Group manages several asset-backed commercial paper/loan programs that provide its clients’ off-balance-sheet and/or cost-effective financing. The VIEs used in the programs purchase financial assets, primarily receivables, from clients participating in the programs and provide liquidity through the issuance of commercial paper or borrowings from the MHFG Group backed by the financial assets. While customers normally continue to service the transferred receivables, the MHFG Group underwrites, distributes, and makes a market in commercial paper issued by the conduits. The MHFG Group typically provides program-wide liquidity and credit support facilities and, in some instances, financing to the VIEs. The MHFG Group has the power to determine which assets will be held in the VIEs and has an obligation to monitor these assets. The Group is also responsible for liability management. In addition, through the liquidity and credit support facilities with the VIEs, the Group has the obligation to absorb losses that could potentially be significant to the VIEs. Therefore, the Group consolidates this type of VIEs.

Asset-backed securitizations

The MHFG Group acts as an arranger of various types of structured finance to meet clients’ off-balance-sheet financing needs. In substantially all of these structured financing transactions, the transfer of the financial asset by the client is structured to be bankruptcy remote by use of a bankruptcy remote entity, which is deemed to be a VIE because its equity holder does not have decision making rights. The MHFG Group receives fees for structuring and/or distributing the securities sold to investors. In some cases, the MHFG Group itself purchases the securities issued by the entities and/or provides loans to the VIEs.

In addition, the MHFG Group establishes several single-issue and multi-issue special purpose entities that issue collateralized debt obligations (“CDO”) or CLO, synthetic CDO/CLO or other repackaged instruments to meet clients’ and investors’ financial needs. The MHFG Group also arranges securitization transactions including CMBS, RMBS and others. In these transactions, the MHFG Group acts as an underwriter, placement agent, asset manager, derivatives counterparty, and/or investor to debt and equity instruments.

In certain VIEs, where the MHFG Group provides liquidity and credit support facilities, writes credit protection or invests in debt or equity instruments in its role as an arranger, servicer, administrator or asset manager, etc., the Group has the power to determine which assets will be held in the VIEs or to manage and monitor these assets. In addition, through the variable interests above, the Group has the obligation to absorb losses and the right to receive benefits that could potentially be significant to the VIEs. Therefore, the Group consolidates such VIEs.

The MHFG Group established certain VIEs to securitize its own mortgage loans. The Group provides servicing for, holds retained subordinated beneficial interests in, and retains credit exposure in the form of guarantees in the mortgage loans. In its role as a servicer, the Group has the power to direct the entity’s activities that most significantly impact the entity’s economic performance by managing defaulted mortgage loans. In addition, through the retained interests and the involvement as a guarantor above, the Group has the obligation to absorb losses and the right to receive benefits that could potentially be significant to the entity. Therefore, the Group consolidates such VIEs.

Investments in securitization products

The MHFG Group invests in, among other things, various types of CDO/CLO, synthetic CDO/CLO and repackaged instruments, CMBS and RMBS arranged by third parties for the purpose of generating current income or capital appreciation, which all utilize entities that are deemed to be VIEs. By design, such investments were investment grade at issuance and held by a diverse group of investors. The potential loss amount of securities and loans is generally limited to the amount invested because the Group has no contractual involvement in such VIEs beyond its investments. Since the Group is involved in those VIEs only as an investor, the Group does not ordinarily have the power to direct the VIEs’ activities that most significantly impact the VIEs’ economic performance. However, the Group consolidates VIEs, where the transactions are tailored by the third party arrangers to meet the Group’s needs as a main investor, who is ultimately deemed to have the power to determine which assets to be held in the VIEs. The Group also invests in certain beneficial interests issued by VIEs which hold real estate that the Group utilizes. In addition to these variable interests, when the Group has the power including the sole unilateral ability to liquidate VIEs, the Group consolidates such VIEs.

Investment funds

The MHFG Group invests in various investment funds including securities investment trusts, which collectively invest in equity and debt securities that include listed Japanese securities and investment grade bonds. Investment advisory companies or fund management companies, including the Group’s subsidiaries and affiliates, administer and make investment decisions over such investment funds. The Group consolidates certain investment funds where it is deemed to be the primary beneficiary. The Group has determined that certain investment vehicles managed by the Group that have all the attributes of an investment company (or similar entity) qualify for the deferral from certain requirements of ASC 810 that originated from SFAS No.167 “Amendments to FASB Interpretation No. 46(R)” (“SFAS No. 167”). Therefore, for these vehicles, the Group determines whether it is the primary beneficiary by evaluating whether it absorbs a majority of expected losses, receives a majority of expected residual returns, or both.

Trust arrangements

The MHFG Group offers a variety of asset management and administration services under trust arrangements including security investment trusts, pension trusts and trusts used in the securitization of assets originated by and transferred to third parties. The Group receives trust fees for providing services as an agent or fiduciary on behalf of beneficiaries.

With respect to guaranteed principal money trust products, the MHFG Group assumes certain risks by providing guarantees for the repayment of principal as required by the trust agreements or relevant Japanese legislation. The MHFG Group manages entrusted funds primarily through the origination of high quality loans and other credit-related products, investing in investment grade marketable securities such as Japanese government bonds and placing cash with the MHFG Group’s subsidiary trust banks. The Group has the power to determine which assets will be held in the VIEs or to manage these assets. In addition, through the principal guarantee agreement, the Group has the obligation to absorb losses that could potentially be significant to the VIEs. Therefore, the Group consolidates this type of VIEs. However, the MHFG Group does not consolidate certain guaranteed principal money trusts, which invest all the entrusted funds in the MHFG Group itself, as the Group has determined that it has no variable interests (Refer to Note 10 “Due to trust accounts”). See Note 23 “Commitments and contingencies” for the balances of guaranteed trust principal unconsolidated at March 31, 2013 and 2014.

With respect to non-guaranteed trust arrangements, the MHFG Group manages and administers assets on behalf of its customers (trust beneficiaries) in the capacity of a trustee and fiduciary. For substantially all non-guaranteed trust arrangements, the Group generally does not have the power to direct the activities of the VIEs that most significantly impact the VIEs’ economic performance or has neither the obligation to absorb losses nor the right to receive benefits that could potentially be significant to the VIEs. Therefore, such trust accounts are not included in the consolidated financial statements of the MHFG Group.

The Group has determined that, in certain trust arrangements that have all the attributes of an investment company (or similar entity), certain requirements of ASC 810 that originated from SFAS No.167 are deferred. Therefore, for these trust arrangements, the Group determines whether it is the primary beneficiary by evaluating whether it absorbs a majority of expected losses, receives a majority of expected residual returns, or both.

Special purpose entities created for structured finance

The MHFG Group is involved in real estate, commercial aircraft and other vessel and machinery and equipment financing to VIEs. As the Group typically only provides senior financing with credit enhanced by subordinated interests and sometimes may act as an interest rate swap counterparty, the Group determines that, in this type of VIEs, it does not have the power to direct the activities of the VIEs that most significantly impact the VIEs’ economic performance, or even the significant variable interests.

Securitization

The MHFG Group has had no significant transfers of financial assets, recognized no significant gains or losses and retained no significant interests in securitization transactions accounted for as sales.

There are certain transactions where transfers of financial assets do not qualify for sale treatment but are accounted for as secured borrowings. These transferred assets continue to be carried on the consolidated balance sheets of the MHFG Group. Such assets are associated with securitization transactions and loan participation transactions, which amounted to ¥174 billion and ¥62 billion as of March 31, 2013, and ¥181 billion and ¥79 billion as of March 31, 2014, respectively. Liabilities associated with securitization and loan participation transactions are presented as Payables under securities lending transactions and Other short-term borrowings or Long-term debt, respectively, on the consolidated balance sheets.

XML

Maximum Potential Amount of Future Payments for Credit Protection Written by Expiration Period (Detail) (JPY ¥) In Billions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Credit Derivatives [Line Items]
Maximum payout/Notional amount	¥ 2,202	¥ 2,462
One year or less
Credit Derivatives [Line Items]
Maximum payout/Notional amount	325	620
After one year through five years
Credit Derivatives [Line Items]
Maximum payout/Notional amount	1,791	1,720
After five years
Credit Derivatives [Line Items]
Maximum payout/Notional amount	¥ 86	¥ 122

XML

Credit Quality Indicators of Financing Receivables (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	¥ 73,623,540	[1]	¥ 69,945,464	[1]
Domestic
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	54,938,307		54,580,313
Domestic | Manufacturing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	8,025,932		8,078,871
Domestic | Construction and real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	7,204,594		7,477,853
Domestic | Services
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	3,956,742		3,972,011
Domestic | Wholesale and retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	5,350,707		5,355,974
Domestic | Transportation and communications
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	3,247,394		3,147,106
Domestic | Banks and other financial institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	3,460,147		3,142,998
Domestic | Government and public institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	6,734,451		6,907,426
Domestic | Other industries
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	4,983,821	[2]	4,521,994	[2]
Domestic | Individuals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	11,974,519		11,976,080
Foreign
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	18,685,233		15,365,151
Foreign | Banks and other financial institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	4,610,141		4,088,651
Foreign | Government and public institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	883,004		595,911
Financing Receivables Not Impaired | Normal obligors | A-B
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	35,292,975		31,480,416
Financing Receivables Not Impaired | Normal obligors | A-B | Domestic
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	24,692,444		23,186,762
Financing Receivables Not Impaired | Normal obligors | A-B | Domestic | Manufacturing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	4,248,490		4,171,212
Financing Receivables Not Impaired | Normal obligors | A-B | Domestic | Construction and real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	2,890,563		2,524,644
Financing Receivables Not Impaired | Normal obligors | A-B | Domestic | Services
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	1,946,764		1,736,931
Financing Receivables Not Impaired | Normal obligors | A-B | Domestic | Wholesale and retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	2,029,723		1,853,573
Financing Receivables Not Impaired | Normal obligors | A-B | Domestic | Transportation and communications
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	2,388,541		2,236,404
Financing Receivables Not Impaired | Normal obligors | A-B | Domestic | Banks and other financial institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	2,602,545		2,246,804
Financing Receivables Not Impaired | Normal obligors | A-B | Domestic | Government and public institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	6,678,104		6,797,133
Financing Receivables Not Impaired | Normal obligors | A-B | Domestic | Other industries
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	1,907,714		1,620,061
Financing Receivables Not Impaired | Normal obligors | A-B | Foreign
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	10,600,531		8,293,654
Financing Receivables Not Impaired | Normal obligors | C-D
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	16,358,154		16,484,016
Financing Receivables Not Impaired | Normal obligors | C-D | Domestic
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	12,008,567		12,833,528
Financing Receivables Not Impaired | Normal obligors | C-D | Domestic | Manufacturing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	2,467,326		2,615,406
Financing Receivables Not Impaired | Normal obligors | C-D | Domestic | Construction and real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	3,066,852		3,486,850
Financing Receivables Not Impaired | Normal obligors | C-D | Domestic | Services
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	1,558,609		1,734,482
Financing Receivables Not Impaired | Normal obligors | C-D | Domestic | Wholesale and retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	2,632,048		2,699,053
Financing Receivables Not Impaired | Normal obligors | C-D | Domestic | Transportation and communications
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	658,680		685,237
Financing Receivables Not Impaired | Normal obligors | C-D | Domestic | Banks and other financial institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	664,843		666,197
Financing Receivables Not Impaired | Normal obligors | C-D | Domestic | Government and public institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	8,347		11,729
Financing Receivables Not Impaired | Normal obligors | C-D | Domestic | Other industries
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	754,137		743,214
Financing Receivables Not Impaired | Normal obligors | C-D | Domestic | Individuals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	197,725		191,360
Financing Receivables Not Impaired | Normal obligors | C-D | Foreign
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	4,349,587		3,650,488
Financing Receivables Not Impaired | Normal obligors | Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	12,555,451	[3]	12,583,274	[3]
Financing Receivables Not Impaired | Normal obligors | Retail | Domestic
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	12,548,830	[3]	12,578,393	[3]
Financing Receivables Not Impaired | Normal obligors | Retail | Domestic | Manufacturing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	109,258	[3]	119,183	[3]
Financing Receivables Not Impaired | Normal obligors | Retail | Domestic | Construction and real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	623,385	[3]	659,844	[3]
Financing Receivables Not Impaired | Normal obligors | Retail | Domestic | Services
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	205,939	[3]	219,089	[3]
Financing Receivables Not Impaired | Normal obligors | Retail | Domestic | Wholesale and retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	249,304	[3]	261,322	[3]
Financing Receivables Not Impaired | Normal obligors | Retail | Domestic | Transportation and communications
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	88,911	[3]	94,233	[3]
Financing Receivables Not Impaired | Normal obligors | Retail | Domestic | Banks and other financial institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	2,030	[3]	2,172	[3]
Financing Receivables Not Impaired | Normal obligors | Retail | Domestic | Other industries
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	3,383	[3]	3,341	[3]
Financing Receivables Not Impaired | Normal obligors | Retail | Domestic | Individuals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	11,266,620	[3]	11,219,209	[3]
Financing Receivables Not Impaired | Normal obligors | Retail | Foreign
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	6,621	[3]	4,881	[3]
Financing Receivables Not Impaired | Normal obligors | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	5,789,132	[4]	4,899,190	[4]
Financing Receivables Not Impaired | Normal obligors | Other | Domestic
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	3,006,656	[4]	2,877,906	[4]
Financing Receivables Not Impaired | Normal obligors | Other | Domestic | Manufacturing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	310,703	[4]	307,946	[4]
Financing Receivables Not Impaired | Normal obligors | Other | Domestic | Construction and real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	161,177	[4]	148,893	[4]
Financing Receivables Not Impaired | Normal obligors | Other | Domestic | Services
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	6,998	[4]	4,035	[4]
Financing Receivables Not Impaired | Normal obligors | Other | Domestic | Wholesale and retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	63,116	[4]	83,065	[4]
Financing Receivables Not Impaired | Normal obligors | Other | Domestic | Transportation and communications
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	1,348	[4]	350	[4]
Financing Receivables Not Impaired | Normal obligors | Other | Domestic | Banks and other financial institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	4,780	[4]	5,311	[4]
Financing Receivables Not Impaired | Normal obligors | Other | Domestic | Government and public institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	48,000	[4]	98,564	[4]
Financing Receivables Not Impaired | Normal obligors | Other | Domestic | Other industries
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	2,240,879	[4]	2,058,974	[4]
Financing Receivables Not Impaired | Normal obligors | Other | Domestic | Individuals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	169,655	[4]	170,768	[4]
Financing Receivables Not Impaired | Normal obligors | Other | Foreign
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	2,782,476	[4]	2,021,284	[4]
Financing Receivables Not Impaired | Watch obligors | Retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	222,195	[3],[5]	254,119	[3],[5]
Financing Receivables Not Impaired | Watch obligors | Retail | Domestic
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	222,181	[3],[5]	253,982	[3],[5]
Financing Receivables Not Impaired | Watch obligors | Retail | Domestic | Manufacturing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	21,117	[3],[5]	22,569	[3],[5]
Financing Receivables Not Impaired | Watch obligors | Retail | Domestic | Construction and real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	20,577	[3],[5]	20,671	[3],[5]
Financing Receivables Not Impaired | Watch obligors | Retail | Domestic | Services
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	24,958	[3],[5]	26,621	[3],[5]
Financing Receivables Not Impaired | Watch obligors | Retail | Domestic | Wholesale and retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	42,086	[3],[5]	49,710	[3],[5]
Financing Receivables Not Impaired | Watch obligors | Retail | Domestic | Transportation and communications
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	11,159	[3],[5]	12,274	[3],[5]
Financing Receivables Not Impaired | Watch obligors | Retail | Domestic | Banks and other financial institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	165	[3],[5]	221	[3],[5]
Financing Receivables Not Impaired | Watch obligors | Retail | Domestic | Other industries
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	401	[3],[5]	448	[3],[5]
Financing Receivables Not Impaired | Watch obligors | Retail | Domestic | Individuals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	101,718	[3],[5]	121,468	[3],[5]
Financing Receivables Not Impaired | Watch obligors | Retail | Foreign
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	14	[3],[5]	137	[3],[5]
Financing Receivables Not Impaired | Watch obligors | Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	219,914	[4],[5]	201,952	[4],[5]
Financing Receivables Not Impaired | Watch obligors | Other | Domestic
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	75,676	[4],[5]	90,268	[4],[5]
Financing Receivables Not Impaired | Watch obligors | Other | Domestic | Manufacturing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	3,820	[4],[5]	8,013	[4],[5]
Financing Receivables Not Impaired | Watch obligors | Other | Domestic | Construction and real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	381	[4],[5]	664	[4],[5]
Financing Receivables Not Impaired | Watch obligors | Other | Domestic | Wholesale and retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	10	[4],[5]	11	[4],[5]
Financing Receivables Not Impaired | Watch obligors | Other | Domestic | Other industries
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	68,642	[4],[5]	77,548	[4],[5]
Financing Receivables Not Impaired | Watch obligors | Other | Domestic | Individuals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	2,823	[4],[5]	4,032	[4],[5]
Financing Receivables Not Impaired | Watch obligors | Other | Foreign
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	144,238	[4],[5]	111,684	[4],[5]
Financing Receivables Not Impaired | Watch obligors | E1 to E2 Rating
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	2,040,659	[5]	2,578,279	[5]
Financing Receivables Not Impaired | Watch obligors | E1 to E2 Rating | Domestic
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	1,527,049	[5]	1,597,936	[5]
Financing Receivables Not Impaired | Watch obligors | E1 to E2 Rating | Domestic | Manufacturing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	636,348	[5]	498,638	[5]
Financing Receivables Not Impaired | Watch obligors | E1 to E2 Rating | Domestic | Construction and real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	303,746	[5]	387,254	[5]
Financing Receivables Not Impaired | Watch obligors | E1 to E2 Rating | Domestic | Services
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	135,030	[5]	160,754	[5]
Financing Receivables Not Impaired | Watch obligors | E1 to E2 Rating | Domestic | Wholesale and retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	178,520	[5]	236,545	[5]
Financing Receivables Not Impaired | Watch obligors | E1 to E2 Rating | Domestic | Transportation and communications
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	50,667	[5]	59,573	[5]
Financing Receivables Not Impaired | Watch obligors | E1 to E2 Rating | Domestic | Banks and other financial institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	174,328	[5]	208,510	[5]
Financing Receivables Not Impaired | Watch obligors | E1 to E2 Rating | Domestic | Other industries
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	7,804	[5]	13,044	[5]
Financing Receivables Not Impaired | Watch obligors | E1 to E2 Rating | Domestic | Individuals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	40,606	[5]	33,618	[5]
Financing Receivables Not Impaired | Watch obligors | E1 to E2 Rating | Foreign
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	513,610	[5]	980,343	[5]
Financing Receivables Impaired | Impaired loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	1,145,060		1,464,218
Financing Receivables Impaired | Impaired loans | Domestic
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	856,904		1,161,538
Financing Receivables Impaired | Impaired loans | Domestic | Manufacturing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	228,870		335,904
Financing Receivables Impaired | Impaired loans | Domestic | Construction and real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	137,913		249,033
Financing Receivables Impaired | Impaired loans | Domestic | Services
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	78,444		90,099
Financing Receivables Impaired | Impaired loans | Domestic | Wholesale and retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	155,900		172,695
Financing Receivables Impaired | Impaired loans | Domestic | Transportation and communications
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	48,088		59,035
Financing Receivables Impaired | Impaired loans | Domestic | Banks and other financial institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	11,456		13,783
Financing Receivables Impaired | Impaired loans | Domestic | Other industries
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	861		5,364
Financing Receivables Impaired | Impaired loans | Domestic | Individuals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	195,372		235,625
Financing Receivables Impaired | Impaired loans | Foreign
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans outstanding	¥ 288,156		¥ 302,680

[1] Amounts represent loan balances before deducting unearned income and deferred loan fees.

[2] Other industries of domestic and Other of foreign include trade receivables and lease receivables of consolidated VIEs.

[3] Amounts represent small balance, homogeneous loans which are subject to pool allocations.

[4] The former MHBK and the former Mizuho Corporate Bank, Ltd. ("MHCB") merged on July 1, 2013 and the former MHCB, the surviving company, changed its trade name to MHBK. As of March 31, 2013, non-impaired loans held by subsidiaries other than the former MHBK, the former MHCB and MHTB constitute Other, since their portfolio segments are not identical to those used by the former MHBK, the former MHCB and MHTB. As of March 31, 2014, non-impaired loans held by subsidiaries other than MHBK and MHTB constitute Other, since their portfolio segments are not identical to those used by MHBK and MHTB.

[5] Special attention obligors are watch obligors with debt in TDR or 90 days or more delinquent debt. Loans to such obligors are considered impaired.

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Material Terms and Conditions Conversion of Eleventh Series Class XI Preferred Stock on Day Following End of Conversion Period (Parenthetical) (Detail) (Eleventh series class XI preferred stock, JPY ¥)	Mar. 31, 2014
Eleventh series class XI preferred stock
Class of Stock [Line Items]
Conversion price, numerator	¥ 1,000
Conversion price, denominator	¥ 282.90

XML

Mizuho Financial Group, Inc., parent company

12 Months Ended

Mar. 31, 2014

Mizuho Financial Group, Inc., parent company

33. Mizuho Financial Group, Inc., parent company

The following tables present the parent company only financial information of MHFG:

Condensed balance sheets

	2013		2014
	(in millions of yen)
Assets:
Cash and due from banks		200		167
Interest-bearing deposits in other banks		26,165		17,103
Investments in subsidiaries and affiliated companies		6,962,630		7,501,486
Other		152,351		210,622
Total		7,141,346		7,729,378
Liabilities and shareholders’ equity:
Short-term borrowings		1,146,995		1,061,460
Long-term debt		240,000		240,000
Other liabilities		26,231		49,448
Shareholders’ equity		5,728,120		6,378,470
Total		7,141,346		7,729,378

Condensed statements of income

	2012		2013		2014
	(in millions of yen)
Income:
Dividends from subsidiaries and affiliated companies		7,955		233,056		285,130
Management fees from subsidiaries		29,747		28,835		31,146
Other income		12,643		34,668		33,894
Total		50,345		296,559		350,170
Expenses:
Operating expenses		21,260		21,075		22,592
Interest expense		16,383		15,870		14,608
Other expense		1,431		1,207		5,724
Total		39,074		38,152		42,924
Equity in undistributed net income of subsidiaries		645,308		617,565		191,865
Income before income tax expense		656,579		875,972		499,111
Income tax expense		190		560		627
Net income		656,389		875,412		498,484

Condensed statements of cash flows

	2012			2013			2014
	(in millions of yen)
Cash flows from operating activities:
Net income		656,389			875,412			498,484
Adjustments and other		(644,977	)		(685,149	)		(222,940	)
Net cash provided by operating activities		11,412			190,263			275,544
Cash flows from investing activities:
Payments for purchases of securities of subsidiaries		(212	)		—			—
Net change in other investing activities		80			1,570			2,631
Net cash provided by (used in) investing activities		(132	)		1,570			2,631
Cash flows from financing activities:
Net change in short-term borrowings		60,000			(40,000	)		(90,000	)
Proceeds from issuance of common stock		146,499			—			—
Purchases of treasury stock		(2,560	)		(7	)		(37,013	)
Dividends paid		(215,937	)		(152,542	)		(152,163	)
Net change in other financing activities		730			749			968
Net cash used in financing activities		(11,268	)		(191,800	)		(278,208	)
Net increase (decrease) in cash and due from banks		12			33			(33	)
Cash and due from banks at beginning of fiscal year		155			167			200
Cash and due from banks at end of fiscal year		167			200			167

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Preferred stock (Tables)

12 Months Ended

Mar. 31, 2014

Schedule of Conversions of Stock

Each share of preferred stock which has not been converted as described above by the end of the relevant conversion period will be converted into common stock on the day following the end of the conversion period on the following terms:

	Conversion date	Conversion ratio
Eleventh series class XI preferred stock	July 1, 2016	¥1,000/(current market price), where the current market price is the average price of daily closing prices (including closing bid or offered price) of common stock as reported by the TSE for the 30 consecutive trading days (excluding trading days on which no closing price, closing bid or offered price is reported) commencing on the 45th trading day prior to July 1, 2016, provided that the current market price shall not be less than ¥282.90.

Schedule of Stockholders Equity

The changes in the number of shares and the aggregate amount of preferred stock during the fiscal years ended March 31, 2012, 2013 and 2014 were as follows:

Class of stock	Issued at March 31, 2011		Net change		Issued at March 31, 2012		Net change		Issued at March 31, 2013		Net change			Issued at March 31, 2014
	(number of shares)
Eleventh series class XI preferred stock (Note)		914,752,000		—		914,752,000		—		914,752,000		—			914,752,000
Thirteenth series class XIII preferred stock		36,690,000		—		36,690,000		—		36,690,000		(36,690,000	)		—
Total		951,442,000		—		951,442,000		—		951,442,000		(36,690,000	)		914,752,000
Class of stock	Aggregate amount at March 31, 2011		Net change		Aggregate amount at March 31, 2012		Net change		Aggregate amount at March 31, 2013		Net change			Aggregate amount at March 31, 2014
	(in millions of yen)
Eleventh series class XI preferred stock (Note)		914,752		—		914,752		—		914,752		—			914,752
Thirteenth series class XIII preferred stock		36,690		—		36,690		—		36,690		(36,690	)		—
Total		951,442		—		951,442		—		951,442		(36,690	)		914,752

Note: The aggregate amount and number of issued shares include the preferred stock in treasury which has been converted to common stock but not yet cancelled.

Preferred stock

Schedule of Stock by Class

The composition of preferred stock at March 31, 2012, 2013 and 2014 is as follows:

2012	Aggregate amount		Number of shares						Liquidation value per share		Convertible or not
Class of stock			Authorized		Issued		In treasury
	(in millions of yen)								(in yen)
Eleventh series class XI preferred stock (1)		914,752		1,369,512,000		914,752,000		541,073,800		1,000		Yes
Class XII preferred stock		—		1,500,000,000		—		—		—		—
Thirteenth series class XIII preferred stock		36,690		1,500,000,000		36,690,000		—		1,000		No
Total		951,442		4,369,512,000		951,442,000		541,073,800
2013	Aggregate amount		Number of shares						Liquidation value per share		Convertible or not
Class of stock			Authorized		Issued		In treasury
	(in millions of yen)								(in yen)
Eleventh series class XI preferred stock (1)		914,752		1,369,512,000		914,752,000		574,087,800		1,000		Yes
Class XII preferred stock		—		1,500,000,000		—		—		—		—
Thirteenth series class XIII preferred stock		36,690		1,500,000,000		36,690,000		—		1,000		No
Total		951,442		4,369,512,000		951,442,000		574,087,800
2014	Aggregate amount		Number of shares						Liquidation value per share		Convertible or not
Class of stock			Authorized		Issued		In treasury
	(in millions of yen)								(in yen)
Eleventh series class XI preferred stock (1)		914,752		914,752,000		914,752,000		602,100,700		1,000		Yes
Thirteenth series class XIII preferred stock		—		36,690,000		—		—		—		—
First series class XIV preferred stock (2)		—		900,000,000		—		—		—		—
Second series class XIV preferred stock (2)		—		900,000,000		—		—		—		—
Third series class XIV preferred stock (2)		—		900,000,000		—		—		—		—
Fourth series class XIV preferred stock (2)		—		900,000,000		—		—		—		—
First series class XV preferred stock (3)		—		900,000,000		—		—		—		—
Second series class XV preferred stock (3)		—		900,000,000		—		—		—		—
Third series class XV preferred stock (3)		—		900,000,000		—		—		—		—
Fourth series class XV preferred stock (3)		—		900,000,000		—		—		—		—
First series class XVI preferred stock (4)		—		1,500,000,000		—		—		—		—
Second series class XVI preferred stock (4)		—		1,500,000,000		—		—		—		—
Third series class XVI preferred stock (4)		—		1,500,000,000		—		—		—		—
Fourth series class XVI preferred stock (4)		—		1,500,000,000		—		—		—		—
Total		914,752		4,251,442,000		914,752,000		602,100,700

Notes:

(1) The aggregate amount and number of issued shares include the preferred stock in treasury which has been converted to common stock but not yet cancelled.

(2) The total number of authorized shares from first to fourth series class XIV preferred stock shall not exceed 900,000,000.

(3) The total number of authorized shares from first to fourth series class XV preferred stock shall not exceed 900,000,000.

(4) The total number of authorized shares from first to fourth series class XVI preferred stock shall not exceed 1,500,000,000.

Convertible Preferred Stock

Schedule of Stock by Class

Eleventh series class XI preferred stock is convertible into common stock at the option of the holder. The material terms and conditions of conversion are as follows.

	Conversion period	Conversion ratio (Note)
Eleventh series class XI preferred stock	July 1, 2008 to June 30, 2016	¥1,000/(conversion price), where the conversion price after adjustment is ¥282.90 on or after August 30, 2011; to be reset on July 1, 2014 and 2015 (each, a “Reset Date”) as ¥1,000/(conversion price), where the conversion price is the lower of (x) the average price of daily closing prices (including closing bid or offered price) of common stock as reported by the Tokyo Stock Exchange (“TSE”) for the 30 consecutive trading days (excluding trading days on which no closing price, closing bid or offered price is reported) commencing on the 45th trading day prior to the Reset Date and (y) the conversion price after adjustment effective as of the day before the relevant Reset Date, provided that the conversion price shall not be less than ¥282.90.

Note: Subject to adjustment, where issuance or disposal by MHFG of common stock for a price below the “current market price”, a stock split, issuance of securities convertible into common stock at a price below the “current market price” at the time of issuance thereof or determination of the conversion price thereof, merger or amalgamation, or a capital decrease or stock consolidation occurs and in certain other circumstances.

Common Stock

Schedule of Stock by Class

The changes in the number of issued shares of common stock during the fiscal years ended March 31, 2012, 2013 and 2014 were as follows:

	2012		2013		2014
	(shares)
Balance at beginning of fiscal year		21,782,185,320		24,048,165,727		24,164,864,477
Issuance of new shares of common stock by conversion of Eleventh series class XI preferred stock		151,921,540		116,698,750		99,020,710
Issuance of new shares of common stock by exercise of stock acquisition rights		4,748,000		—		—
Issuance of new shares of common stock for stock exchanges		2,109,310,867		—		—
Balance at end of fiscal year		24,048,165,727		24,164,864,477		24,263,885,187

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Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Mar. 31, 2014
Minimum
Significant Accounting Policies [Line Items]
Period in which obligors generally determined to be substantially bankrupt, past due (in months)	6 months
Minimum | Impaired loans
Significant Accounting Policies [Line Items]
Number of days past due	90 days
Software and Software Development Costs | Minimum
Significant Accounting Policies [Line Items]
Estimated useful life	5 years
Software and Software Development Costs | Maximum
Significant Accounting Policies [Line Items]
Estimated useful life	10 years
Shinko Securities Company Limited | Customer relationships
Significant Accounting Policies [Line Items]
Weighted-average amortization period	16 years

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CONSOLIDATED BALANCE SHEETS (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Assets:
Cash and due from banks	¥ 1,696,879	¥ 1,268,442
Interest-bearing deposits in other banks	19,037,527	11,215,597
Call loans and funds sold	468,283	530,542
Receivables under resale agreements (Note 29)	8,349,365	9,024,808
Receivables under securities borrowing transactions (Note 29)	5,010,740	5,543,914
Trading account assets	27,408,259	34,066,555
Investments:
Available-for-sale securities (including assets pledged that secured parties are permitted to sell or repledge of ¥6,549,038 million in 2013 and ¥3,422,827 million in 2014)	30,648,761	39,413,951
Held-to-maturity securities	4,040,083	3,000,403
Other investments	792,689	838,135
Loans (Notes 4, 5, 8 and 28)	73,484,954	69,833,483
Allowance for loan losses	(626,177)	(772,957)
Loans, net of allowance	72,858,777	69,060,526
Premises and equipment-net (Note 6)	1,356,594	1,091,989
Due from customers on acceptances	92,398	101,590
Accrued income	264,380	276,193
Goodwill (Note 7)	11,549	6,147
Intangible assets (Note 7)	58,947	64,474
Deferred tax assets (Note 19)	405,120	641,777
Other	3,198,995	2,601,951
Total	175,699,346	178,746,994
Liabilities and equity:
Noninterest-bearing deposits	12,751,194	12,138,640
Interest-bearing deposits	73,114,857	74,218,101
Noninterest-bearing deposits	1,114,729	836,177
Interest-bearing deposits	15,629,374	13,028,638
Due to trust accounts (Note 10)	742,036	619,271
Call money and funds purchased	7,194,433	6,126,425
Payables under repurchase agreements (Note 29)	16,797,809	17,451,080
Payables under securities lending transactions (Note 29)	6,265,875	11,496,178
Other short-term borrowings	6,023,972	6,724,100
Trading account liabilities	14,824,922	16,768,830
Bank acceptances outstanding	92,398	101,590
Income taxes payable	57,124	37,555
Deferred tax liabilities (Note 19)	33,181	14,301
Accrued expenses	160,107	158,664
Long-term debt	9,853,941	8,802,223
Other	4,422,023	4,368,126
Total	169,077,975	172,889,899
Commitments and contingencies (Note 23)
MHFG shareholders' equity:
Preferred stock (Note 13)	312,651	377,354
Common stock (Note 14)-no par value, authorized 48,000,000,000 shares in 2013 and 2014, and issued 24,164,864,477 shares in 2013, and 24,263,885,187 shares in 2014	5,489,295	5,460,821
Accumulated deficit	(537,479)	(883,390)
Accumulated other comprehensive income, net of tax (Note 16)	1,117,877	777,997
Less: Treasury stock, at cost-Common stock 22,128,230 shares in 2013, and 13,817,747 shares in 2014	(3,874)	(4,662)
Total MHFG shareholders' equity	6,378,470	5,728,120
Noncontrolling interests (Note 24)	242,901	128,975
Total equity	6,621,371	5,857,095
Total	175,699,346	178,746,994
Consolidated VIEs
Assets:
Cash and due from banks	25,762	15,078
Interest-bearing deposits in other banks	10,306	3,216
Trading account assets	1,383,280	936,800
Investments:
Investments	72,626	83,762
Loans, net of allowance	2,639,153	2,428,898
Other	421,585	343,522
Total	4,552,712	3,811,276
Liabilities and equity:
Other short-term borrowings	287,910	253,311
Trading account liabilities	7,355	10,585
Long-term debt	173,870	144,055
Other	929,990	978,685
Total	¥ 1,399,125	¥ 1,386,636

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Loans (Tables)

12 Months Ended

Mar. 31, 2014

Schedule of Accounts, Notes, Loans and Financing Receivable

The table below presents loans outstanding by domicile and industry of borrower at March 31, 2013 and 2014:

	2013		2014
	(in millions of yen)
Domestic:
Manufacturing		8,078,871		8,025,932
Construction and real estate		7,477,853		7,204,594
Services		3,972,011		3,956,742
Wholesale and retail		5,355,974		5,350,707
Transportation and communications		3,147,106		3,247,394
Banks and other financial institutions		3,142,998		3,460,147
Government and public institutions		6,907,426		6,734,451
Other industries (Note)		4,521,994		4,983,821
Individuals:
Mortgage loans		11,234,561		11,187,206
Other		741,519		787,313
Total domestic		54,580,313		54,938,307
Foreign:
Commercial and industrial		10,481,071		12,937,005
Banks and other financial institutions		4,088,651		4,610,141
Government and public institutions		595,911		883,004
Other (Note)		199,518		255,083
Total foreign		15,365,151		18,685,233
Total		69,945,464		73,623,540
Less: Unearned income and deferred loan fees—net		111,981		138,586
Total loans before allowance for loan losses		69,833,483		73,484,954

Note: Other industries of domestic and Other of foreign include trade receivables and lease receivables of consolidated VIEs.

Financing Receivable Credit Quality Indicators

The table below presents credit quality information of loans based on the MHFG Group’s internal rating system at March 31, 2013 and 2014:

	Normal obligors								Watch obligors excluding special attention obligors (1)						Impaired loans		Total
	A-B		C-D		Retail (2)		Other (3)		E1-E2		Retail (2)		Other (3)
	(in millions of yen)
2013
Domestic:
Manufacturing		4,171,212		2,615,406		119,183		307,946		498,638		22,569		8,013		335,904		8,078,871
Construction and real estate		2,524,644		3,486,850		659,844		148,893		387,254		20,671		664		249,033		7,477,853
Services		1,736,931		1,734,482		219,089		4,035		160,754		26,621		—		90,099		3,972,011
Wholesale and retail		1,853,573		2,699,053		261,322		83,065		236,545		49,710		11		172,695		5,355,974
Transportation and communications		2,236,404		685,237		94,233		350		59,573		12,274		—		59,035		3,147,106
Banks and other financial institutions		2,246,804		666,197		2,172		5,311		208,510		221		—		13,783		3,142,998
Government and public institutions		6,797,133		11,729		—		98,564		—		—		—		—		6,907,426
Other industries		1,620,061		743,214		3,341		2,058,974		13,044		448		77,548		5,364		4,521,994
Individuals		—		191,360		11,219,209		170,768		33,618		121,468		4,032		235,625		11,976,080
Total domestic		23,186,762		12,833,528		12,578,393		2,877,906		1,597,936		253,982		90,268		1,161,538		54,580,313
Foreign:
Total foreign		8,293,654		3,650,488		4,881		2,021,284		980,343		137		111,684		302,680		15,365,151
Total		31,480,416		16,484,016		12,583,274		4,899,190		2,578,279		254,119		201,952		1,464,218		69,945,464
2014
Domestic:
Manufacturing		4,248,490		2,467,326		109,258		310,703		636,348		21,117		3,820		228,870		8,025,932
Construction and real estate		2,890,563		3,066,852		623,385		161,177		303,746		20,577		381		137,913		7,204,594
Services		1,946,764		1,558,609		205,939		6,998		135,030		24,958		—		78,444		3,956,742
Wholesale and retail		2,029,723		2,632,048		249,304		63,116		178,520		42,086		10		155,900		5,350,707
Transportation and communications		2,388,541		658,680		88,911		1,348		50,667		11,159		—		48,088		3,247,394
Banks and other financial institutions		2,602,545		664,843		2,030		4,780		174,328		165		—		11,456		3,460,147
Government and public institutions		6,678,104		8,347		—		48,000		—		—		—		—		6,734,451
Other industries		1,907,714		754,137		3,383		2,240,879		7,804		401		68,642		861		4,983,821
Individuals		—		197,725		11,266,620		169,655		40,606		101,718		2,823		195,372		11,974,519
Total domestic		24,692,444		12,008,567		12,548,830		3,006,656		1,527,049		222,181		75,676		856,904		54,938,307
Foreign:
Total foreign		10,600,531		4,349,587		6,621		2,782,476		513,610		14		144,238		288,156		18,685,233
Total		35,292,975		16,358,154		12,555,451		5,789,132		2,040,659		222,195		219,914		1,145,060		73,623,540

Notes:

(1) Special attention obligors are watch obligors with debt in TDR or 90 days or more delinquent debt. Loans to such obligors are considered impaired.

(2) Amounts represent small balance, homogeneous loans which are subject to pool allocations.

(3) The former MHBK and the former Mizuho Corporate Bank, Ltd. (“MHCB”) merged on July 1, 2013 and the former MHCB, the surviving company, changed its trade name to MHBK. As of March 31, 2013, non-impaired loans held by subsidiaries other than the former MHBK, the former MHCB and MHTB constitute Other, since their portfolio segments are not identical to those used by the former MHBK, the former MHCB and MHTB. As of March 31, 2014, non-impaired loans held by subsidiaries other than MHBK and MHTB constitute Other, since their portfolio segments are not identical to those used by MHBK and MHTB.

Impaired Financing Receivables

The table below presents impaired loans information at March 31, 2013 and 2014.

	Recorded investment (1)						Unpaid principal balance		Related allowance (3)		Average recorded investment		Interest income recognized (4)
	Requiring an allowance for loan losses		Not requiring an allowance for loan losses (2)		Total
	(in millions of yen)
2013
Domestic:
Manufacturing		325,727		10,177		335,904		365,049		118,475		299,978		5,297
Construction and real estate		189,060		59,973		249,033		269,770		46,574		227,920		2,824
Services		77,982		12,117		90,099		106,397		22,153		103,113		1,949
Wholesale and retail		160,477		12,218		172,695		189,231		62,962		186,594		3,076
Transportation and communications		55,202		3,833		59,035		61,554		18,870		54,633		1,220
Banks and other financial institutions		13,727		56		13,783		13,821		5,007		11,950		227
Other industries		5,224		140		5,364		5,484		3,818		4,791		73
Individuals		116,875		118,750		235,625		252,182		9,429		250,718		4,343
Total domestic		944,274		217,264		1,161,538		1,263,488		287,288		1,139,697		19,009
Foreign:
Total foreign		297,859		4,821		302,680		305,801		119,053		220,561		5,321
Total		1,242,133		222,085		1,464,218		1,569,289		406,341		1,360,258		24,330
2014
Domestic:
Manufacturing		216,579		12,291		228,870		240,660		74,367		259,889		4,086
Construction and real estate		107,932		29,981		137,913		163,813		30,724		183,437		2,213
Services		66,651		11,793		78,444		88,537		20,199		83,754		1,671
Wholesale and retail		142,886		13,014		155,900		172,641		51,274		161,288		2,795
Transportation and communications		44,237		3,851		48,088		54,149		14,691		50,387		939
Banks and other financial institutions		11,390		66		11,456		11,480		4,049		12,474		163
Other industries		781		80		861		2,020		108		3,486		19
Individuals		91,715		103,657		195,372		206,341		9,391		215,422		3,714
Total domestic		682,171		174,733		856,904		939,641		204,803		970,137		15,600
Foreign:
Total foreign		276,292		11,864		288,156		290,161		118,360		291,981		4,750
Total		958,463		186,597		1,145,060		1,229,802		323,163		1,262,118		20,350

Notes:

(1) Amounts represent the outstanding balances of nonaccrual loans. The MHFG Group’s policy for placing loans in nonaccrual status completely corresponds to the Group’s definition of impaired loans.

(2) These impaired loans do not require an allowance for loan losses because the MHFG Group has sufficient collateral to cover probable loan losses.

(3) The allowance for loan losses on impaired loans includes those for groups of small balance, homogeneous loans totaling ¥504,750 million and ¥425,391 million as of March 31, 2013 and 2014 which were collectively evaluated for impairment, in addition to those that were individually evaluated for impairment.

(4) Amounts represent gross interest income on impaired loans which were included in Interest income on loans in the consolidated statements of income.

Troubled Debt Restructurings on Financing Receivables Subsequently Defaulted

The following table presents TDRs that were made during the fiscal years ended March 31, 2013 and 2014.

	Loan forgiveness or debt to equity swaps				Interest rate reduction and/or Postponement of principal and/or interest
	Recorded investment (1)		Charge-offs (2)
			(in millions of yen)
2013
Domestic:
Manufacturing		—		—		277,957
Construction and real estate		—		—		129,908
Services		—		—		68,930
Wholesale and retail		—		1,243		218,497
Transportation and communications		—		—		52,206
Banks and other financial institutions		—		—		34,468
Other industries		—		—		1,809
Individuals		—		—		62,160
Total domestic		—		1,243		845,935
Foreign:
Total foreign		1,062		3,750		140,064
Total		1,062		4,993		985,999
2014
Domestic:
Manufacturing		235		481		196,705
Construction and real estate		2,528		136		44,573
Services		310		555		57,945
Wholesale and retail		5		149		170,217
Transportation and communications		—		—		34,598
Banks and other financial institutions		—		—		31,901
Other industries		—		—		1,998
Individuals		—		—		47,822
Total domestic		3,078		1,321		585,759
Foreign:
Total foreign		—		—		60,348
Total		3,078		1,321		646,107

Notes:

(1) Amounts represent the book values of loans immediately after the restructurings.

(2) Charge-offs represent the loss impact on the consolidated statements of income for the fiscal year that resulted from the restructurings.

Troubled Debt Restructurings on Financing Receivables by Type of Restructuring

The following table presents payment defaults which occurred during the fiscal years ended March 31, 2013 and 2014 with respect to the loans modified as TDRs within the previous twelve months.

	Recorded investment
	2013		2014
	(in millions of yen)
Domestic:
Manufacturing		18,740		21,144
Construction and real estate		18,751		3,500
Services		5,976		3,707
Wholesale and retail		19,920		21,916
Transportation and communications		4,386		14,069
Banks and other financial institutions		—		—
Other industries		—		107
Individuals		5,517		6,283
Total domestic		73,290		70,726
Foreign:
Total foreign		6,374		115
Total		79,664		70,841

Financing Receivable, by Contractual Maturity

The table below presents an analysis of the age of the recorded investment in loans that are past due at March 31, 2013 and 2014:

	30-59 days past due		60-89 days past due		90 days or more past due		Total past due		Current		Total
	(in millions of yen)
2013
Domestic:
Manufacturing		3,788		1,911		32,830		38,529		8,040,342		8,078,871
Construction and real estate		11,815		4,038		69,333		85,186		7,392,667		7,477,853
Services		3,385		1,916		13,829		19,130		3,952,881		3,972,011
Wholesale and retail		2,771		2,851		16,483		22,105		5,333,869		5,355,974
Transportation and communications		711		558		3,687		4,956		3,142,150		3,147,106
Banks and other financial institutions		—		—		6		6		3,142,992		3,142,998
Government and public institutions		—		—		—		—		6,907,426		6,907,426
Other industries		—		18		122		140		4,521,854		4,521,994
Individuals		41,987		24,114		69,774		135,875		11,840,205		11,976,080
Total domestic		64,457		35,406		206,064		305,927		54,274,386		54,580,313
Foreign:
Total foreign		127		885		11,132		12,144		15,353,007		15,365,151
Total		64,584		36,291		217,196		318,071		69,627,393		69,945,464
2014
Domestic:
Manufacturing		2,834		2,193		14,452		19,479		8,006,453		8,025,932
Construction and real estate		5,412		3,440		44,852		53,704		7,150,890		7,204,594
Services		2,185		1,235		10,304		13,724		3,943,018		3,956,742
Wholesale and retail		3,205		4,561		12,180		19,946		5,330,761		5,350,707
Transportation and communications		832		573		3,265		4,670		3,242,724		3,247,394
Banks and other financial institutions		—		1		5		6		3,460,141		3,460,147
Government and public institutions		—		—		—		—		6,734,451		6,734,451
Other industries		9		29		34		72		4,983,749		4,983,821
Individuals		38,466		18,488		56,605		113,559		11,860,960		11,974,519
Total domestic		52,943		30,520		141,697		225,160		54,713,147		54,938,307
Foreign:
Total foreign		87		23		10,935		11,045		18,674,188		18,685,233
Total		53,030		30,543		152,632		236,205		73,387,335		73,623,540

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Estimated Aggregate Amortization Expenses for Intangible Assets (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014
Expected Amortization Expense [Line Items]
2015	¥ 5,349
2016	5,058
2017	4,780
2018	4,502
2019	¥ 4,264

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Roll-Forward of Unrecognized Tax Benefits (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Income Tax Contingency [Line Items]
Total unrecognized tax benefits at beginning of fiscal year	¥ 1,454	¥ 2,160	¥ 1,829
Gross amount of increases (decreases) related to positions taken during prior years	(6)	(471)	362
Gross amount of increases related to positions taken during the current year	100	29	244
Amount of decreases related to settlements		(559)	(227)
Foreign exchange translation	143	295	(48)
Total unrecognized tax benefits at end of fiscal year	¥ 1,691	¥ 1,454	¥ 2,160

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Material Terms and Conditions Conversion of Eleventh Series Class XI Preferred Stock on Day Following End of Conversion Period (Detail) (Eleventh series class XI preferred stock)	12 Months Ended
	Mar. 31, 2014
Class of Stock [Line Items]
Conversion ratio	¥1,000/(conversion price), where the conversion price after adjustment is ¥282.90 on or after August 30, 2011; to be reset on July 1, 2014 and 2015 (each, a "Reset Date") as ¥1,000/(conversion price), where the conversion price is the lower of (x) the average price of daily closing prices (including closing bid or offered price) of common stock as reported by the Tokyo Stock Exchange ("TSE") for the 30 consecutive trading days (excluding trading days on which no closing price, closing bid or offered price is reported) commencing on the 45th trading day prior to the Reset Date and (y) the conversion price after adjustment effective as of the day before the relevant Reset Date, provided that the conversion price shall not be less than ¥282.90.	[1]
Conversion on the day following the end of the conversion period
Class of Stock [Line Items]
Conversion date	Jul. 01, 2016
Conversion ratio	¥1,000/(current market price), where the current market price is the average price of daily closing prices (including closing bid or offered price) of common stock as reported by the TSE for the 30 consecutive trading days (excluding trading days on which no closing price, closing bid or offered price is reported) commencing on the 45th trading day prior to July 1, 2016, provided that the current market price shall not be less than ¥282.90.

[1] Subject to adjustment, where issuance or disposal by MHFG of common stock for a price below the "current market price", a stock split, issuance of securities convertible into common stock at a price below the "current market price" at the time of issuance thereof or determination of the conversion price thereof, merger or amalgamation, or a capital decrease or stock consolidation occurs and in certain other circumstances.

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CONSOLIDATED STATEMENTS OF EQUITY (JPY ¥) In Millions	Total		Preferred stock (Note 13):	Common stock (Note 14):	Accumulated deficit:	Accumulated other comprehensive income, net of tax (Note 16):	Treasury stock, at cost:	Total MHFG shareholders' equity	Noncontrolling interests:
Balance at beginning of fiscal year at Mar. 31, 2011			¥ 453,576	¥ 5,164,160	¥ (2,046,024)	¥ 104,972	¥ (3,197)		¥ 361,869
Issuance of new shares of common stock for stock exchanges (Note 14)				244,100
Purchases of treasury stock							(2,560)
Net income	648,957				656,389
Conversion to common stock			(43,208)
Change during year	140,616					140,616
Issuance of new shares of common stock by conversion of preferred stock				43,208
Disposal of treasury stock							12,001
Dividends declared	(216,508)	[1],[2]			(216,473)
Effect of stock exchanges (Note 14)							(13,318)		(216,558)
Gains (losses) on disposal of treasury stock				(48)
Effect of other increase/decrease in consolidated subsidiaries									65,183
Stock-based compensation (Note 21)				106
Dividends paid to noncontrolling interests									(23,666)
Change in ownership interest in consolidated subsidiaries				(23,534)
Net income (loss) attributable to noncontrolling interests	7,432								(7,432)
Unrealized net gains (losses) on available-for-sale securities attributable to noncontrolling interests									(2,044)
Foreign currency translation adjustments attributable to noncontrolling interests									(1,353)
Pension liability adjustments attributable to noncontrolling interests									259
Balance at end of fiscal year at Mar. 31, 2012	4,647,024		410,368	5,427,992	(1,606,108)	245,588	(7,074)	4,470,766	176,258
Purchases of treasury stock							(395)
Net income	881,156				875,412
Conversion to common stock			(33,014)
Change during year	532,409					532,409
Issuance of new shares of common stock by conversion of preferred stock				33,014
Disposal of treasury stock							2,807
Dividends declared	(152,722)	[2]			(152,694)
Gains (losses) on disposal of treasury stock				(631)
Effect of other increase/decrease in consolidated subsidiaries									(36,457)
Stock-based compensation (Note 21)				529
Dividends paid to noncontrolling interests									(19,384)
Change in ownership interest in consolidated subsidiaries				(83)
Net income (loss) attributable to noncontrolling interests	(5,744)								5,744
Unrealized net gains (losses) on available-for-sale securities attributable to noncontrolling interests									2,408
Foreign currency translation adjustments attributable to noncontrolling interests									190
Pension liability adjustments attributable to noncontrolling interests									216
Balance at end of fiscal year at Mar. 31, 2013	5,857,095		377,354	5,460,821	(883,390)	777,997	(4,662)	5,728,120	128,975
Purchases of treasury stock							(37,387)
Net income	500,235				498,484
Conversion to common stock			(28,013)
Change during year	339,880					339,880
Issuance of new shares of common stock by conversion of preferred stock				28,013
Disposal of treasury stock							1,177
Dividends declared	(152,265)	[2]			(152,265)
Gains (losses) on disposal of treasury stock				(31)
Effect of other increase/decrease in consolidated subsidiaries									113,887
Stock-based compensation (Note 21)				492
Cancellation of treasury stock							36,998
Cancellation of preferred stock			(36,690)		(308)
Dividends paid to noncontrolling interests									(12,006)
Net income (loss) attributable to noncontrolling interests	(1,751)								1,751
Unrealized net gains (losses) on available-for-sale securities attributable to noncontrolling interests									8,980
Foreign currency translation adjustments attributable to noncontrolling interests									118
Pension liability adjustments attributable to noncontrolling interests									1,196
Balance at end of fiscal year at Mar. 31, 2014	¥ 6,621,371		¥ 312,651	¥ 5,489,295	¥ (537,479)	¥ 1,117,877	¥ (3,874)	¥ 6,378,470	¥ 242,901

[1] As MHFG commenced distributing an interim dividend from the fiscal year ended March 31, 2012, the amounts for the fiscal year include such interim dividends.

[2] Dividends paid on treasury stock are excluded.

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Goodwill and Intangible Assets - Additional Information (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Goodwill and Intangible Assets Disclosure [Line Items]
Goodwill impairment losses recognized	¥ 3,792		¥ 5,637
Intangible assets amortization expenses recognized	¥ 5,709	¥ 5,615	¥ 5,490

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Commitments and Contingencies - Additional Information (Detail) (JPY ¥)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Commitments and Contingencies Disclosure [Line Items]
Carrying amount of guarantees and similar obligations	¥ 422,000,000,000	¥ 512,000,000,000
Carrying amounts of derivatives that are deemed to guarantees	404,000,000,000	493,000,000,000
Total rental expense	95,941,000,000	98,459,000,000	101,003,000,000
Sale Leaseback transactions accounted as an operating leases, total rental payment for the whole period in the original contracts	214,690,000,000
Sale Leaseback transactions accounted as an operating leases, total rental payment for the whole period in the current contracts	282,832,000,000
Sale Leaseback transactions accounted as an operating leases, future minimum rental payments	69,556,000,000	15,907,000,000	29,879,000,000
Off-balance Sheet instruments
Commitments and Contingencies Disclosure [Line Items]
Allowance for losses on off-balance-sheet instruments	¥ 121,000,000,000	¥ 102,000,000,000

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Net Periodic Benefit Cost of Severance Indemnities and Pension Plans (Parenthetical) (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Special termination benefits	¥ (5,429)	¥ (5,454)	¥ (14,115)	[1]
Voluntary retirement scheme
Defined Benefit Plan Disclosure [Line Items]
Special termination benefits			¥ 9,828

[1] The amount for the fiscal year ended March 31, 2012 includes special termination benefits of ¥9,828 million pertaining to MHSC's voluntary retirement scheme.

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Reconciliation of Total Net Business Profits Under Internal Management Reporting System to Income Loss Before Income Tax Expense Benefit Shown on Consolidated Statements of Income (Detail) (JPY ¥)	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2012
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net business profits	¥ 744,300,000,000	[1],[2],[3],[4]	¥ 912,200,000,000	[1],[2],[3]	¥ 719,100,000,000	[1]
U.S. GAAP adjustments	(325,400,000,000)		129,200,000,000		87,200,000,000
(Provision) credit for loan losses	126,230,000,000		(139,947,000,000)		23,044,000,000
Net gains (losses) related to equity investments	178,700,000,000		28,200,000,000		(90,500,000,000)
Non-recurring personnel expense	(14,800,000,000)		(23,500,000,000)		(39,300,000,000)
Gains on disposal of premises and equipment	10,460,000,000		12,411,000,000		19,924,000,000
(Provision) credit for losses on off-balance-sheet instruments	(12,095,000,000)		(4,584,000,000)		1,203,000,000
Others-net	18,900,000,000		(28,800,000,000)		(57,800,000,000)
Income before income tax expense	¥ 726,343,000,000		¥ 885,180,000,000		¥ 662,835,000,000

[1] As for the fiscal year ended March 31, 2012, "Others (h)", "Others (o)", and "Others (q)" include elimination of transactions between consolidated subsidiaries. As for the fiscal year ended March 31, 2013, "Others (g)", "Others (n)", and "Others (p)" include elimination of transactions between consolidated subsidiaries. As for the fiscal year ended March 31, 2014, "Others (h)" and "Others (k)" include elimination of transactions between consolidated subsidiaries.

[2] Beginning on April 1, 2013, MHSC was turned into a directly-held subsidiary of MHFG. As for the fiscal year ended March 31, 2013, "MHSC (Consolidated) (m)" represents the performance of the former MHSC for the first three quarters and the new MHSC for the fourth quarter, while "Others (g)" includes the performance of the former MHIS for the first three quarters. As for the fiscal year ended March 31, 2014, "MHSC (Consolidated) (j)" represents the performance of the new MHSC, in light of the merger of the former MHSC and the former MHIS conducted in January 2013.

[3] Beginning on April 1, 2013, the MHFG Group moved to a new group operational structure and realigned the reportable segments to reflect the new organizational structure. In addition, new allocation methods have been applied to the calculation of "Gross profits" and "General and administrative expenses". Figures for the fiscal year ended March 31, 2013 have been reclassified under the new allocation methods. The effect of the change of allocation methods is not significant.

[4] As for the fiscal year ended March 31, 2014, "MHBK (Non-consolidated)" represents the sum of the performance of the former MHCB for the first quarter and the new MHBK for the second, third, and fourth quarters, while "Others (h)" includes the performance of the former MHBK for the first quarter, in light of the merger of the former MHBK and the former MHCB conducted in July 2013.

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Weighted-Average Assumptions Used to Determine Benefit Obligations and Net Periodic Benefit Cost (Detail)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Weighted-average assumptions used to determine benefit obligations at fiscal year end:
Discount rates	0.96%	1.44%	1.73%
Weighted-average assumptions used to determine net periodic benefit cost during the year:
Discount rates	1.44%	1.73%	1.83%
Expected rates of return on plan assets	2.42%	2.40%	2.27%
Minimum
Weighted-average assumptions used to determine benefit obligations at fiscal year end:
Rates of increase in future compensation levels	2.00%	2.31%	2.33%
Weighted-average assumptions used to determine net periodic benefit cost during the year:
Rates of increase in future compensation levels	2.31%	2.33%	2.28%
Maximum
Weighted-average assumptions used to determine benefit obligations at fiscal year end:
Rates of increase in future compensation levels	4.80%	6.57%	6.46%
Weighted-average assumptions used to determine net periodic benefit cost during the year:
Rates of increase in future compensation levels	6.57%	6.46%	6.15%

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Pension and other employee benefit plans (Tables)

12 Months Ended

Mar. 31, 2014

Schedule of Net Benefit Costs

Net periodic benefit cost of the severance indemnities and pension plans for the fiscal years ended March 31, 2012, 2013 and 2014 includes the following components:

	2012			2013			2014
	(in millions of yen)
Service cost-benefits earned during the fiscal year		27,734			30,422			33,429
Interest costs on projected benefit obligation		24,267			23,186			20,341
Expected return on plan assets		(28,234	)		(32,237	)		(37,047	)
Amortization of prior service benefit		(318	)		(319	)		(195	)
Amortization of net actuarial loss (gain)		25,595			16,936			7,039
Special termination benefits (Note)		14,115			5,454			5,429
Net periodic benefit cost		63,159			43,442			28,996

Note: The amount for the fiscal year ended March 31, 2012 includes special termination benefits of ¥9,828 million pertaining to MHSC’s voluntary retirement scheme.

Schedule of Amounts Recognized in Other Comprehensive Income (Loss)

Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss) before-tax for the fiscal years ended March 31, 2013 and 2014 were summarized as follows:

	2013			2014
	(in millions of yen)
Net actuarial gain (loss)		103,683			204,506
Amortization of net actuarial loss (gain)		16,936			7,039
Prior service benefit (cost)		(1,782	)		—
Amortization of prior service benefit		(319	)		(195	)
Total recognized in other comprehensive income (loss) before-tax		118,518			211,350

Schedule of Assumptions Used

Weighted-average assumptions used to determine benefit obligations and net periodic benefit cost are as follows:

	2012			2013			2014
Weighted-average assumptions used to determine benefit obligations at fiscal year end:
Discount rates		1.73	%		1.44	%		0.96	%
Rates of increase in future compensation levels		2.33-6.46	%		2.31-6.57	%		2.00-4.80	%
Weighted-average assumptions used to determine net periodic benefit cost during the year:
Discount rates		1.83	%		1.73	%		1.44	%
Rates of increase in future compensation levels		2.28-6.15	%		2.33-6.46	%		2.31-6.57	%
Expected rates of return on plan assets		2.27	%		2.40	%		2.42	%

Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets

The following table sets forth the combined funded status and amounts recognized in the accompanying consolidated balance sheets at March 31, 2013 and 2014 for the plans of MHFG and its subsidiaries:

	2013			2014
	(in millions of yen)
Change in benefit obligation:
Benefit obligation at beginning of fiscal year		1,343,714			1,399,123
Service cost		30,422			33,429
Interest cost		23,186			20,341
Plan participants’ contributions		1,184			1,181
Amendments		1,782			—
Actuarial loss (gain)		63,140			(70,214	)
Foreign exchange translation		2,209			4,854
Benefits paid		(49,593	)		(49,905	)
Lump-sum payments		(16,921	)		(18,119	)
Benefit obligation at end of fiscal year		1,399,123			1,320,690
Change in plan assets:
Fair value of plan assets at beginning of fiscal year		1,323,163			1,527,744
Actual return (negative return) on plan assets		199,341			171,970
Foreign exchange translation		1,783			4,128
Employer contributions		51,866			50,936
Plan participants’ contributions		1,184			1,181
Benefits paid		(49,593	)		(49,905	)
Fair value of plan assets at end of fiscal year		1,527,744			1,706,054
Funded status		128,621			385,364
Amounts recognized in the consolidated balance sheets consist of:
Prepaid pension cost		153,414			403,654
Accrued pension liability		(24,793	)		(18,290	)
Net amount recognized		128,621			385,364
Amounts recognized in Accumulated other comprehensive income (loss) before-tax consist of:
Prior service benefit (cost)		(440	)		(635	)
Net actuarial gain (loss)		(236,359	)		(24,814	)
Net amount recognized		(236,799	)		(25,449	)

Note: The aggregated accumulated benefit obligations of these plans were ¥1,364,786 million and ¥1,319,771 million, respectively, as of March 31, 2013 and 2014. The defined benefit plans generally employ a multi-variable and non-linear formula based upon rank and years of service. Employees with service in excess of one year are qualified to receive lump-sum severance indemnities.

Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets

The following table shows the projected benefit obligations and the fair value of plan assets for the plans of MHFG and its subsidiaries with projected benefit obligations in excess of plan assets, and the accumulated benefit obligations and the fair value of plan assets for the plans with accumulated benefit obligations in excess of plan assets at March 31, 2013 and 2014:

	2013		2014
	(in millions of yen)
Plans with projected benefit obligations in excess of plan assets:
Projected benefit obligation		95,789		40,509
Fair value of plan assets		70,690		21,898
Plans with accumulated benefit obligations in excess of plan assets:
Accumulated benefit obligation		91,210		39,590
Fair value of plan assets		70,690		21,898

Note: The plans with projected benefit obligations in excess of plan assets include those with accumulated benefit obligations in excess of plan assets.

Schedule of Expected Benefit Payments

The following table presents forecasted benefit payments including the effect of expected future service for the fiscal years indicated:

	(in millions of yen)
Fiscal year ending March 31:
2015		65,570
2016		68,183
2017		70,083
2018		71,558
2019		72,543
2020-2024		355,295

Target Allocation

Schedule of Allocation of Plan Assets

MHFG and certain subsidiaries’ target allocation for the plan assets excluding those of the employee retirement benefit trusts at March 31, 2014 is as follows:

Asset category	Asset ratio
Japanese equity securities		5.00	%
Japanese debt securities		44.00	%
Foreign equity securities		26.00	%
Foreign debt securities		10.00	%
General account of life insurance companies		14.00	%
Other		1.00	%
Total		100.00	%

Note: General account of life insurance companies is a contract with life insurance companies which guarantees payments of principal and predetermined interest rate.

Fair Value, Inputs

Schedule of Allocation of Plan Assets

The following table presents the fair value of plan assets of MHFG and its subsidiaries at March 31, 2013 and 2014, by asset class. For the detailed information on fair value measurements, including descriptions of Level 1, 2 and 3 of the fair value hierarchy and the valuation methodologies, see Note 28 “Fair value”.

	2013										2014
	Level 1			Level 2			Level 3		Total		Level 1			Level 2			Level 3		Total
	(in billions of yen)
Japanese equity securities:
Common stocks (1)		716			—			—		716		782			—			—		782
Pooled funds (2)		—			86			—		86		5			51			—		56
Japanese debt securities:
Government bonds		179			—			—		179		229			—			—		229
Pooled funds (2)		—			46			—		46		—			68			—		68
Other		—			7			—		7		—			24			—		24
Foreign equity securities:
Common stocks		54			2			—		56		96			3			—		99
Pooled funds (2)		—			92			—		92		15			139			—		154
Foreign debt securities:
Government bonds		71			4			—		75		63			6			—		69
Pooled funds (2)		—			46			—		46		—			9			—		9
Other		—			23			—		23		—			15			—		15
General account of life insurance companies (3)		—			111			—		111		—			111			—		111
Hedge funds		—			—			1		1		—			—			2		2
Other		92	(4)		(2	)(5)		—		90		91	(4)		(3	) (5)		—		88
Total assets at fair value		1,112			415			1		1,528		1,281			423			2		1,706

Notes:

(1) This class includes equity securities held in the employee retirement benefit trusts of ¥681 billion and ¥782 billion at March 31, 2013 and 2014, respectively, which are well-diversified across industries.

(2) These classes primarily include pension investment fund trusts. Investments in these classes are generally measured at their net asset values per share and can be redeemable within a short-term period upon request.

(3) Investments in this class are measured at conversion value.

(4) Amounts primarily include cash and short-term assets carried at fair value.

(5) Amounts primarily include foreign exchange contracts carried at fair value.

XML

Pledged Assets and Collateral - Additional Information (Detail) (JPY ¥) In Billions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Reserve funds maintained with the BOJ	¥ 18,084	¥ 10,507
Reserve funds requires to be maintained by MHFG Group	1,184	1,099
Fair value collateral received that can be sold or repledged	13,817	15,501
Fair value collateral received that can be sold or repledged, value of collateral sold or repledged	¥ 12,508	¥ 13,834

XML

Fair value

12 Months Ended

Mar. 31, 2014

Fair value

28. Fair value

Fair value measurements

ASC 820 defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. ASC 820 also establishes a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. In addition, ASC 820 precludes (1) the deferral of gains and losses at inception of certain derivative contracts whose fair value was not evidenced by market-observable data, and (2) the use of block discounts when measuring the fair value of instruments traded in an active market, which were previously applied to large holdings of publicly traded financial instruments.

Fair value hierarchy

ASC 820 specifies a hierarchy of valuation techniques based on whether the inputs to those valuation techniques are observable or unobservable. The standard describes three levels of inputs that may be used to measure fair value:

Level 1	Quoted prices in active markets for identical assets or liabilities. Level 1 assets and liabilities include debt and equity securities and derivative contracts that are traded in an active exchange market.
Level 2	Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 2 assets and liabilities include debt securities with quoted prices that are traded less frequently than exchange-traded instruments. If no quoted market prices are available, the fair values of debt securities and over-the-counter derivative contracts in this category are determined using a pricing model with inputs that are observable in the market or can be derived principally from or corroborated by observable market data.
Level 3	Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. Level 3 assets and liabilities include financial instruments whose values are determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation.

Valuation process

The MHFG Group has established clear valuation policies which govern the principles of fair value measurements and the authority and duty of each department. The Group has also established well-documented procedure manuals which describe valuation techniques and related inputs for determining the fair values of various financial instruments. The policies require that the measurement of fair values be carried out in accordance with the procedures by the risk management departments or the back offices which are independent from the front offices. The policies also require the risk management departments to check and verify whether the valuation methodologies defined in the procedure manuals are fair and proper and the internal audit departments to periodically review the compliance with the procedures throughout the Group. Although the valuation methodologies and related inputs are consistently used from period to period, a change in the market environment sometimes leads to a change in the valuation methodologies and the inputs. For instance, a change in market liquidity due to a delisting or a new listing is one of the key drivers of revisions to the valuation methodologies and the inputs. The key drivers also include the availability or the lack of market observable inputs and the development of new valuation methodologies. The price verification through the Group’s internal valuation process has an important role in identifying whether the valuation methodologies and the inputs need to be changed. The internal valuation process over the prices broker-dealers provide, primarily for Japanese securitization products, is described in more detail below in “Investments”. A change in the valuation methodologies and/or the inputs requires the revision of the valuation policies and procedure manuals, which is required to be approved by the appropriate authority, either the CEO, the head of risk management, and/or accounting, depending on the nature and characteristics of the change.

The following is a description of valuation methodologies and inputs used for assets and liabilities measured at fair value on a recurring basis, including the general classification of such instruments pursuant to the fair value hierarchy and the MHFG Group’s valuation techniques used to measure fair values. During the fiscal year ended March 31, 2014, there were no significant changes made to the Group’s valuation techniques and related inputs.

Trading securities and trading securities sold, not yet purchased

When quoted prices for identical securities are available in an active market, the Group uses the quoted prices to measure the fair values of securities and such securities are classified in Level 1 of the fair value hierarchy. Level 1 securities include highly liquid government bonds and Ginnie Mae securities. When quoted prices for identical securities are available, but not actively traded, such securities are classified in Level 2 of the fair value hierarchy. When no quoted market prices are available, the Group estimates fair values by using a pricing model with inputs that are observable in the market and such securities are classified in Level 2 of the fair value hierarchy. Level 2 securities include Japanese local government bonds, corporate bonds, and commercial paper. When less liquid market conditions exist for securities, the quoted prices are stale or the prices from independent sources vary significantly, such securities are generally classified in Level 3 of the fair value hierarchy. The fair values of foreign currency denominated securitization products such as RMBS, CMBS, and ABS are determined primarily by using a discounted cash flow model. The key inputs used for the model include default rates, recovery rates, prepayment rates, and discount rates. In the event that certain key inputs are unobservable or cannot be corroborated by observable market data, these financial instruments are classified in Level 3.

The investment funds are classified in either Level 1, Level 2, or Level 3 of the fair value hierarchy. Exchange-Traded Funds (“ETF”) are generally classified in Level 1, while the others are classified in Level 2 or Level 3. Investment trusts and hedge funds are generally classified in Level 2, since those funds are measured at the net asset value (“NAV”) per share and the Group has the ability to redeem its investment with the investees at the NAV per share at the measurement date or within the near term. In contrast, private equity funds and real estate funds measured at the NAV per share are generally classified in Level 3, since the Group does not have the ability to redeem its investment with the investees at the NAV per share, and it cannot redeem its investment with the investees at the NAV per share at the measurement date or within the near term.

Derivative financial instruments

Exchange-traded derivatives are valued using quoted market prices and consequently are classified in Level 1 of the fair value hierarchy. However, the majority of derivatives entered into by the Group are executed over-the-counter and are valued using internal valuation techniques as no quoted market prices are available for such instruments. The valuation techniques depend on the type of derivatives. The principal techniques used to value these instruments are discounted cash flow models and the Black-Scholes option pricing model, which are widely accepted in the financial services industry. The key inputs vary with the type of derivatives and the nature of the underlying instruments and include interest rate yield curves, foreign exchange rates, the spot price of the underlying, volatility and correlation. Each item is classified in either Level 2 or Level 3 depending on the observability of the significant inputs to the model. Level 2 derivatives include plain vanilla interest rate and currency swaps and option contracts. Derivative contracts valued using significant unobservable correlation or volatility are classified in Level 3 of the fair value hierarchy.

Investments

The fair values of available-for-sale securities are determined primarily using the same procedures described for trading securities above. Since private placement bonds have no quoted market prices, the fair values of such bonds are estimated based on a discounted cash flow model using interest rates approximating the current rates for instruments with similar maturities and credit risk. Private placement bonds are classified in either Level 2 or Level 3 depending on the observability of the significant inputs to the model, such as credit risk. The fair values of Japanese securitization products such as RMBS, CMBS, CDO, ABS, and CLO are generally based upon single non-binding quoted prices from broker-dealers. Such quotes are validated through the Group’s internal processes and controls. In the rare case where the Group finds the quoted prices to be invalid through its internal valuation process, it adjusts those prices or alternatively estimates their fair values by using a discounted cash flow model to incorporate the Group’s estimates of key inputs such as the most recent value of each underlying asset, cash flows of the underlying assets, and discount margin. The validation of such prices varies depending on the nature and type of the products. For the majority of RMBS, CDO, ABS and CLO products, broker quotes are validated by investigating significant unusual monthly valuation fluctuations and comparing to prices internally computed through discounted cash flow models using assumptions and parameters provided by brokers such as the cash flows of underlying assets, yield curve, prepayment speed and credit spread. For the majority of CMBS, the Group validates broker quotes through a review process that includes the investigation of significant unusual monthly valuation fluctuations and/or a review of underlying assets with significant differences between the valuations of the Group and the broker-dealers being identified. Though most Japanese securitization products are classified in Level 3, certain securitization products such as Japanese RMBS are classified in Level 2, if the quoted prices are verified through either recent market transactions or a pricing model that can be corroborated by observable market data.

Other investments, except investments held by consolidated investment companies, have not been measured at fair value on a recurring basis. Investments held by consolidated investment companies mainly consist of marketable and non-marketable equity securities and debt securities. The fair value of the marketable equity securities is based upon quoted market prices. The fair value of the non-marketable equity securities is based upon significant management judgment, as very limited quoted prices exist. When evaluating such securities, the Group firstly considers recent market transactions of identical securities, if applicable. Subsequently, the Group uses commonly accepted valuation techniques such as earnings multiples based on comparable public securities. Non-marketable equity securities are generally classified in Level 3 of the fair value hierarchy. The fair value of the debt securities is estimated using a discounted cash flow model, since they have no quoted market prices. Those debt securities are classified in Level 3, because the credit risk is unobservable.

Long-term debt

Where fair value accounting has been elected for structured notes, the fair values are determined by incorporating the fair values of embedded derivatives that are primarily derived by using the same procedures described for derivative financial instruments above. Such instruments are classified in Level 2 or Level 3 depending on the observability of significant inputs to the model of the embedded derivatives.

Items measured at fair value on a recurring basis

Assets and liabilities measured at fair value on a recurring basis at March 31, 2013 and 2014, including those for which the MHFG Group has elected the fair value option, are summarized below:

2013	Level 1		Level 2		Level 3		Assets/ Liabilities measured at fair value
	(in billions of yen)
Assets:
Trading securities (1):
Japanese government bonds		4,651		49		—		4,700
Japanese local government bonds		—		125		—		125
U.S. Treasury bonds and federal agency securities		5,777		306		—		6,083
Other foreign government bonds		2,235		194		—		2,429
Agency mortgage-backed securities		2,055		596		—		2,651
Residential mortgage-backed securities		—		—		100		100
Commercial mortgage-backed securities		—		3		91		94
Certificates of deposit and commercial paper		—		1,318		—		1,318
Corporate bonds and other		50		1,176		417		1,643
Equity securities		622		503		71		1,196
Derivatives:
Interest rate contracts		7		10,319		24		10,350
Foreign exchange contracts		5		3,066		28		3,099
Equity-related contracts		45		114		23		182
Credit-related contracts		—		30		29		59
Other contracts		—		18		20		38
Available-for-sale securities:
Japanese government bonds		29,198		1,585		—		30,783
Japanese local government bonds		—		244		—		244
U.S. Treasury bonds and federal agency securities		178		—		—		178
Other foreign government bonds		334		264		—		598
Agency mortgage-backed securities		144		862		—		1,006
Residential mortgage-backed securities		—		150		292		442
Commercial mortgage-backed securities		—		—		250		250
Japanese corporate bonds and other debt securities		—		2,000		215		2,215
Foreign corporate bonds and other debt securities		12		345		202		559
Equity securities (marketable)		2,975		164		—		3,139
Other investments		1		—		75		76
Total assets measured at fair value on a recurring basis (2)		48,289		23,431		1,837		73,557
Liabilities:
Trading securities sold, not yet purchased		3,338		182		—		3,520
Derivatives:
Interest rate contracts		8		9,997		13		10,018
Foreign exchange contracts		4		2,968		11		2,983
Equity-related contracts		51		110		16		177
Credit-related contracts		—		35		9		44
Other contracts		—		8		19		27
Long-term debt (3)		—		171		381		552
Total liabilities measured at fair value on a recurring basis		3,401		13,471		449		17,321

2014	Level 1		Level 2		Level 3		Assets/ Liabilities measured at fair value
	(in billions of yen)
Assets:
Trading securities (1):
Japanese government bonds		3,360		50		—		3,410
Japanese local government bonds		—		74		—		74
U.S. Treasury bonds and federal agency securities		3,541		486		—		4,027
Other foreign government bonds		2,567		274		—		2,841
Agency mortgage-backed securities		1,390		364		—		1,754
Residential mortgage-backed securities		—		—		78		78
Commercial mortgage-backed securities		—		2		91		93
Certificates of deposit and commercial paper		—		969		—		969
Corporate bonds and other		38		1,671		413		2,122
Equity securities		714		579		60		1,353
Derivatives:
Interest rate contracts		43		7,997		24		8,064
Foreign exchange contracts		6		2,331		17		2,354
Equity-related contracts		60		124		13		197
Credit-related contracts		—		28		21		49
Other contracts		1		18		4		23
Available-for-sale securities:
Japanese government bonds		20,912		1,144		—		22,056
Japanese local government bonds		—		245		—		245
U.S. Treasury bonds and federal agency securities		154		—		—		154
Other foreign government bonds		280		441		—		721
Agency mortgage-backed securities		105		856		—		961
Residential mortgage-backed securities		—		112		220		332
Commercial mortgage-backed securities		—		—		161		161
Japanese corporate bonds and other debt securities		—		1,858		170		2,028
Foreign corporate bonds and other debt securities		1		427		141		569
Equity securities (marketable)		3,348		74		—		3,422
Other investments		2		—		69		71
Total assets measured at fair value on a recurring basis (2)		36,522		20,124		1,482		58,128
Liabilities:
Trading securities sold, not yet purchased		3,862		488		—		4,350
Derivatives:
Interest rate contracts		42		7,846		7		7,895
Foreign exchange contracts		5		2,340		6		2,351
Equity-related contracts		58		108		12		178
Credit-related contracts		—		30		4		34
Other contracts		1		12		4		17
Long-term debt (3)		—		157		501		658
Total liabilities measured at fair value on a recurring basis		3,968		10,981		534		15,483

Notes:

(1) Trading securities include foreign currency denominated securities for which the MHFG Group elected the fair value option.

(2) Amounts include the investments measured at the NAV per share at March 31, 2013 and 2014, of ¥715 billion and ¥649 billion, respectively, of which ¥667 billion and ¥612 billion, respectively, are classified in Level 2, and ¥48 billion and ¥37 billion, respectively, are classified in Level 3. The amounts of unfunded commitments related to these investments at March 31, 2013 and 2014 were ¥24 billion and ¥23 billion, respectively.

(3) Amounts represent items for which the Group elected the fair value option.

Items measured at fair value on a recurring basis using significant unobservable inputs (Level 3)

The following table presents a reconciliation for all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the fiscal years ended March 31, 2013 and 2014:

2013	April 1, 2012			Gains (losses) in Earnings			Gains (losses) in OCI			Transfers into Level 3			Transfers out of Level 3			Purchases			Sales			Issuances		Settlements			March 31, 2013		Change in unrealized gains (losses) still held (6)
	(in billions of yen)
Assets:
Trading securities:
Residential mortgage- backed securities		159			17	(2)		—			—			—			2			(7	)		—		(71	)		100		6
Commercial mortgage- backed securities		26			1	(2)		—			—			—			72			(1	)		—		(7	)		91		—
Corporate bonds and other		355			72	(2)		—			14			(8	)		609			(544	)		—		(81	)		417		42
Equity securities		82			4	(2)		—			3			(3	)		10			(25	)		—		—			71		(1	)
Derivatives, net (1):
Interest rate contracts		(10	)		16	(2)		—			—			—			—			—			—		5			11		16
Foreign exchange contracts		37			(18	)(2)		—			—			(8	)		—			—			—		6			17		(21	)
Equity-related contracts		22			(10	)(2)		—			—			—			—			—			—		(5	)		7		(10	)
Credit-related contracts		23			(6	)(2)		—			(1	)		1			—			—			—		3			20		(5	)
Other contracts		15			—	(2)		—			—			(14	)		—			—			—		—			1		—
Available-for-sale securities:
Residential mortgage- backed securities		348			—	(3)		6	(4)		—			—			29			(1	)		—		(90	)		292		—
Commercial mortgage- backed securities		330			2	(3)		12	(4)		—			—			31			(16	)		—		(109	)		250		(5	)
Japanese corporate bonds and other debt securities		226			—	(3)		1	(4)		—			—			95			—			—		(107	)		215		—
Foreign corporate bonds and other debt securities		236			4	(3)		6	(4)		—			—			28			(4	)		—		(68	)		202		—
Other investments		189			12	(3)		—			—			—			6			(49	)		—		(83	)		75		—
Liabilities:
Trading securities sold, not yet purchased		—			—	(2)		—			—			(1	)		(41	)		42			—		—			—		—
Long-term debt		460			(26	)(5)		—			4			(175	)		—			—			142		(76	)		381		(24	)

2014	April 1, 2013		Gains (losses) in Earnings			Gains (losses) in OCI			Transfers into Level 3			Transfers out of Level 3			Purchases		Sales			Issuances		Settlements			March 31, 2014		Change in unrealized gains (losses) still held (6)
	(in billions of yen)
Assets:
Trading securities:
Residential mortgage-backed securities		100		10	(2)		—			—			—			—		(4	)		—		(28	)		78		7
Commercial mortgage-backed securities		91		5	(2)		—			—			—			—		—			—		(5	)		91		4
Corporate bonds and other		417		55	(2)		—			4			(12	)		503		(442	)		—		(112	)		413		35
Equity securities		71		6	(2)		—			—			—			8		(24	)		—		(1	)		60		—
Derivatives, net (1):
Interest rate contracts		11		6	(2)		—			(1	)		—			—		—			—		1			17		11
Foreign exchange contracts		17		(3	)(2)		—			—			—			—		—			—		(3	)		11		5
Equity-related contracts		7		(6	)(2)		—			—			—			—		—			—		—			1		(7	)
Credit-related contracts		20		(6	)(2)		—			—			1			—		—			—		2			17		(6	)
Other contracts		1		—	(2)		—			—			—			—		—			—		(1	)		—		—
Available-for-sale securities:
Residential mortgage-backed securities		292		(1	)(3)		5	(4)		—			—			5		(9	)		—		(72	)		220		—
Commercial mortgage-backed securities		250		5	(3)		(2	)(4)		—			—			36		(18	)		—		(110	)		161		(1	)
Japanese corporate bonds and other debt securities		215		—	(3)		—	(4)		—			(30	)		60		(1	)		—		(74	)		170		—
Foreign corporate bonds and other debt securities		202		8	(3)		(1	)(4)		7			—			—		—			—		(75	)		141		—
Other investments		75		(2	)(3)		—			—			(2	)		7		(2	)		—		(7	)		69		(2	)
Liabilities:
Long-term debt		381		4	(5)		—			1			(1	)		—		—			197		(73	)		501		5

Notes:

(1) Total Level 3 derivative exposures have been netted on the table for presentation purposes only.

(2) Gains (losses) in Earnings are reported in Trading account gains (losses)—net, Foreign exchange gains (losses)—net or Other noninterest income (expenses).

(3) Gains (losses) in Earnings are reported in Investment gains (losses)—net.

(4) Gains (losses) in OCI are reported in Accumulated other comprehensive income (loss).

(5) Gains (losses) in Earnings are reported in Other noninterest income (expenses).

(6) Amounts represent total gains or losses recognized in earnings during the period. These gains or losses are attributable to the change in fair value relating to assets and liabilities classified as Level 3 that are still held at March 31, 2013 and 2014.

Transfers between levels

Transfers of assets or liabilities between levels of the fair value hierarchy are assumed to occur at the beginning of the period.

During the fiscal year ended March 31, 2013, ¥37 billion of Trading securities were transferred from Level 1 to Level 2. Transfers of Trading securities were primarily due to certain Japanese government bonds and foreign corporate bonds which were traded with less frequency.

During the fiscal year ended March 31, 2013, ¥17 billion of Trading securities and ¥1 billion of net Derivative liabilities were transferred into Level 3. Transfers of Trading securities were primarily due to decreased liquidity for certain foreign corporate bonds and equity securities. Transfers of net Derivative liabilities were primarily due to decreased price observability for certain credit derivatives. During the fiscal year ended March 31, 2013, ¥11 billion of Trading securities, ¥1 billion of Trading securities sold, not yet purchased and ¥21 billion of net Derivative assets were transferred out of Level 3. Transfers of Trading securities and Trading securities sold, not yet purchased were primarily due to increased liquidity for certain Japanese and foreign corporate bonds and equity securities. Transfers of net Derivative assets were primarily due to increased price observability for certain commodity derivatives and foreign exchange derivatives. During the fiscal year ended March 31, 2013, ¥4 billion of transfers into Level 3 and ¥175 billion of transfers out of Level 3 for Long-term debt were primarily due to changes in the impact of unobservable inputs on the value of certain structured notes.

During the fiscal year ended March 31, 2014, the transfers into Level 3 included ¥4 billion of Trading securities, ¥1 billion of net Derivative liabilities, ¥7 billion of Available-for-sale securities and ¥1 billion of Long-term debt. Transfers into Level 3 for Trading securities and Available-for-sale securities were primarily due to decreased liquidity for certain foreign corporate bonds. Transfers into Level 3 for net Derivative liabilities were primarily due to decreased price observability for certain interest rate derivatives. Transfers into Level 3 for Long-term debt were primarily due to changes in the impact of unobservable inputs on the value of certain structured notes. During the fiscal year ended March 31, 2014, the transfers out of Level 3 included ¥12 billion of Trading securities, ¥1 billion of net Derivative liabilities, ¥30 billion of Available-for-sale securities, ¥2 billion of Other investments and ¥1 billion of Long-term debt. Transfers out of Level 3 for Trading securities were primarily due to increased liquidity for certain foreign corporate bonds. Transfers out of Level 3 for net Derivative liabilities were primarily due to increased price observability for certain credit derivatives. Transfers out of Level 3 for Available-for-sale securities were primarily due to increased liquidity for certain Japanese corporate bonds and other debt securities. Transfers out of Level 3 for Other investments were caused by a new listing of certain non-marketable equity securities. Transfers out of Level 3 for Long-term debt were primarily due to changes in the impact of unobservable inputs on the value of certain structured loans.

Quantitative information about Level 3 fair value measurements

The following table presents information about significant unobservable inputs related to the MHFG Group’s material classes of Level 3 assets and liabilities at March 31, 2013 and 2014:

2013
Products/Instruments	Fair value		Principal valuation technique	Unobservable inputs	Range of input values
(in billions of yen, except for ratios and basis points)
Trading securities and Available-for-sale securities:
Residential mortgage-backed securities		392	Discounted cash flow	Prepayment rate		0%–24%
			Price-based	Default rate		0%–5%
				Recovery rate		70%–100%
				Discount margin		7bps–2,616bps
Commercial mortgage-backed securities		341	Discounted cash flow	Discount margin		9bps–3,929bps
			Price-based
Corporate bonds and other debt securities		834	Discounted cash flow	Prepayment rate (1)		0%–43%
			Price-based	Default rate (1)		0%–8%
				Recovery rate (1)		15%–85%
				Discount margin (1)		0bps–4,918bps
				Discount margin (2)		0bps–1,232bps
Derivatives, net:
Interest rate contracts		11	Internal valuation model (3)	IR – IR correlation		42%–100%
				Default rate (4)		0%–63%
Foreign exchange contracts		17	Internal valuation model (3)	FX – IR correlation		36%–55%
				FX – FX correlation		55%–55%
				FX volatility		16%–26%
				Default rate (4)		0%–63%
Equity-related contracts		7	Internal valuation model(3)	Equity – IR correlation		0%–60%
				Equity – FX correlation		0%–70%
				Equity volatility		14%–48%
Credit-related contracts (5)		20	Internal valuation model (3)	Default rate		0%–67%
				Credit correlation		2%–100%
Long-term debt		381	Internal valuation model (3)	IR – IR correlation		42%–100%
				FX – IR correlation		36%–55%
				FX – FX correlation		55%–55%
				Equity – IR correlation		0%–60%
				Equity volatility		18%–48%
				Default rate		0%–10%
				Credit correlation		2%–100%

2014
Products/Instruments	Fair value		Principal valuation technique	Unobservable inputs	Range of input values
(in billions of yen, except for ratios and basis points)
Trading securities and Available-for-sale securities:
Residential mortgage-backed securities		298	Discounted cash flow	Prepayment rate		1%–24%
			Price-based	Default rate		0%–4%
				Recovery rate		70%–100%
				Discount margin		8bps–2,002bps
Commercial mortgage-backed securities		252	Discounted cash flow	Discount margin		17bps – 3,441bps
			Price-based
Corporate bonds and other debt securities		724	Discounted cash flow	Prepayment rate (1)		0%–42%
			Price-based	Default rate (1)		0%–9%
				Recovery rate (1)		15%–75%
				Discount margin (1)		12bps–1,725bps
				Discount margin (2)		-122bps–1,303bps
Derivatives, net:
Interest rate contracts		17	Internal valuation model (3)	IR – IR correlation		23%–100%
				Default rate (4)		0%–63%
Foreign exchange contracts		11	Internal valuation model (3)	FX – IR correlation		28%–52%
				FX – FX correlation		55%–55%
				FX volatility		14%–25%
				Default rate (4)		0%–63%
Equity-related contracts		1	Internal valuation model (3)	Equity – IR correlation		0%–60%
				Equity – FX correlation		0%–70%
				Equity volatility		18%–35%
Credit-related contracts (5)		17	Internal valuation model (3)	Default rate		0%–47%
				Credit correlation		1%–100%
Long-term debt		501	Internal valuation model (3)	IR – IR correlation		23%–100%
				FX – IR correlation		28%–52%
				FX – FX correlation		55%–55%
				Equity – IR correlation		0%–60%
				Equity – FX correlation		0%–70%
				Equity volatility		13%–37%
				Default rate		0%–5%
				Credit correlation		19%–100%

Notes:

(1) These inputs are mainly used for determining the fair values of securitization products such as CDO, CLO and ABS, other than RMBS and CMBS.

(2) This input is mainly used for determining the fair values of Japanese corporate bonds and foreign corporate bonds.

(3) Internal valuation model includes discounted cash flow models and the Black-Scholes option pricing model.

(4) This input represents the counterparty default rate derived from the MHFG Group’s own internal credit analysis.

(5) The majority of the fair value of credit derivatives in Level 3 relates to credit derivatives economically hedging the credit risk in certain securitization products. The unobservable inputs of these credit derivatives have already been included in the unobservable inputs related to Trading securities and Available-for-sale securities disclosed above.

IR = Interest rate

FX = Foreign exchange

Sensitivity to unobservable inputs and interrelationship between unobservable inputs

The following is a description of the sensitivities and interrelationships of the significant unobservable inputs used to measure the fair values of Level 3 assets and liabilities.

(1) Prepayment rate

The prepayment rate is the estimated rate at which voluntary unscheduled repayments of the principal of the underlying assets are expected to occur. The movement of the prepayment rate is generally negatively correlated with borrower delinquency. A change in prepayment rate would impact the valuation of the fair values of financial instruments either positively or negatively, depending on the structure of financial instruments.

(2) Default rate

The default rate is an estimate of the likelihood of not collecting contractual payments. An increase in the default rate would generally be accompanied by a decrease in the recovery rate and an increase in the discount margin. It would also generally impact the valuation of the fair values of financial instruments negatively.

(3) Recovery rate

The recovery rate is an estimate of the percentage of contractual payments that would be collected in the event of a default. An increase in recovery rate would generally be accompanied by a decrease in the default rate. It would also generally impact the valuation of the fair values of financial instruments positively.

(4) Discount margin

The discount margin is the portion of the interest rate over a benchmark market interest rate such as LIBOR or swap rates. It primarily consists of a risk premium component which is the amount of compensation that market participants require due to the uncertainty inherent in the financial instruments’ cash flows resulting from credit risk. An increase in discount margin would generally impact the valuation of the fair values of financial instruments negatively.

(5) Correlation

Correlation is the likelihood of the movement of one input relative to another based on an established relationship. The change in correlation would impact the valuation of derivatives either positively or negatively, depending on the nature of the underlying assets.

(6) Volatility

Volatility is a measure of the expected change in variables over a fixed period of time. Some financial instruments benefit from an increase in volatility and others benefit from a decrease in volatility. Generally, for a long position in an option, an increase in volatility would result in an increase in the fair values of financial instruments.

Items measured at fair value on a nonrecurring basis

Certain assets and liabilities are measured at fair value on a nonrecurring basis and are not included in the tables above. These assets and liabilities primarily include items that are measured at the lower of cost or fair value, and items that were initially measured at cost and have been written down to fair value as a result of impairment. The following table shows the fair value hierarchy for these items as of March 31, 2013 and 2014.

2013	Total		Level 1		Level 2		Level 3		Aggregate cost
	(in billions of yen)
Assets:
Loans		222		—		—		222		343
Loans held-for-sale		5		—		5		—		5
Other investments		11		—		—		11		16
Premises and equipment—net		1		—		—		1		5
Total assets at fair value on a nonrecurring basis		239		—		5		234		369

2014	Total		Level 1		Level 2		Level 3		Aggregate cost
	(in billions of yen)
Assets:
Loans		124		—		—		124		208
Loans held-for-sale		33		—		—		33		34
Other investments		5		—		—		5		6
Premises and equipment—net		1		—		—		1		2
Goodwill		—		—		—		—		4
Total assets at fair value on a nonrecurring basis		163		—		—		163		254

Loans in the table above have been impaired and measured based upon the fair value of the underlying collateral.

Loans held-for-sale in the table above are accounted for at the lower of cost or fair value at the end of the period. The items for which fair values are determined by using actual or contractually determined selling price data are classified as Level 2. Due to the lack of current observable market information, the determination of the fair values for items other than the aforementioned requires significant adjustment based upon management judgment and estimation, which results in such items being classified in Level 3 of the hierarchy.

Other investments in the table above, which consist of certain equity method investments and non-marketable equity securities, have been impaired and written down to fair value. The fair values of the impaired marketable equity method investments are determined by their quoted market prices. As the securities are traded on an active exchange market, they are classified as Level 1. The fair values of the impaired non-marketable equity securities, which include non-marketable equity method investments, are determined primarily by using a liquidation value technique. As significant management judgment or estimation is required in the determination of the fair values of non-marketable equity securities, they are classified as Level 3.

Premises and equipment—net in the table above have been impaired and written down to fair value.

Goodwill in the table above is entirely related to PT. Mizuho Balimor Finance reporting unit. Due to the decline of the fair value of the reporting unit, the carrying amount of the goodwill was reduced to its fair value and an impairment loss was recognized. As the determination of fair value of the goodwill required significant management judgment and estimation, the item is classified as Level 3.

Fair value option

The MHFG Group elected the fair value option for certain eligible financial instruments described below.

Foreign currency denominated available-for-sale securities

Prior to the adoption of the fair value option in accordance with ASC 825, the changes in fair value of foreign currency denominated available-for-sale securities had been accounted for in AOCI, while the changes in fair value caused by foreign exchange fluctuation of foreign currency denominated financial liabilities had been accounted for in earnings. The MHFG Group elected the fair value option for those securities to mitigate the volatility in earnings due to the difference in the recognition of foreign exchange risk between available-for-sale securities and financial liabilities. Following the election of the fair value option, these securities have been reported as trading securities in Trading account assets.

Certain hybrid financial instruments

The MHFG Group issues structured notes as part of its client-driven activities. Structured notes are debt instruments that contain embedded derivatives. The Group elected the fair value option for certain structured notes to mitigate accounting mismatches and to achieve operational simplifications. Following the election of the fair value option, these structured notes continue to be reported in Long-term debt and interest on these structured notes continues to be reported in Interest expense on long-term debt based on the contractual rates. The differences between the aggregate fair value of these structured notes for which the fair value option has been elected and the aggregate unpaid principal balance of such instruments were ¥9 billion and ¥14 billion at March 31, 2013 and 2014, respectively. The net unrealized gains (losses) resulting from changes in fair values of these structured notes of ¥(30) billion and ¥4 billion, which included the fair value changes attributable to changes in the Group’s own credit risk, were recorded in Other noninterest income (expenses) for the fiscal years ended March 31, 2013 and 2014, respectively.

Fair value of financial instruments

ASC 825 requires the disclosure of the estimated fair value of financial instruments. The fair value of financial instruments is the amount that would be exchanged between willing parties, other than in a forced sale or liquidation. Quoted market prices, if available, are best utilized as estimates of the fair values of financial instruments. However, since no quoted market prices are available for certain financial instruments, fair values for such financial instruments have been estimated based on management’s assumptions, discounted cash flow models or other valuation techniques. Such estimation methods are described in more detail below. These estimates could be significantly affected by different sets of assumptions. There are certain limitations to management’s best judgment in estimating fair values of financial instruments and inherent subjectivity involved in estimation methodologies and assumptions used to estimate fair value. Accordingly, the net realizable or liquidation values could be materially different from the estimates presented below.

ASC 825 does not require the disclosure of the fair value of nonfinancial instruments.

The following is a description of the valuation methodologies used for estimating the fair value for financial assets and liabilities not carried at fair value on the MHFG Group’s consolidated balance sheets.

Cash and due from banks, call loans and funds sold, and receivables under resale agreements and securities borrowing transactions

The carrying value of short-term financial assets, such as cash and due from banks, interest-bearing deposits in other banks, call loans and funds sold, and receivables under resale agreements and securities borrowing transactions approximates the fair value of these assets since they generally involve limited losses from credit risk or have short-term maturities with interest rates that approximate market rates.

Investments

The fair value of held-to-maturity securities is determined primarily by using the same procedures, and techniques described for trading securities and available-for-sale securities aforementioned in this section. The fair value of other equity interests, which primarily comprise non-marketable equity securities, is not readily determinable, and their carrying amounts of ¥537 billion and ¥526 billion at March 31, 2013 and 2014, respectively, were not included in the disclosure.

Loans

Performing loans have been fair valued as groups of similar loans based on the type of loan, credit quality, prepayment assumptions and remaining maturity. The fair value of performing loans is determined based on discounted cash flows using interest rates approximating the MHFG Group’s current rates for similar loans. The fair value of impaired loans is determined based on either discounted cash flows incorporating the Group’s best estimate of the expected future cash flows or the fair value of the underlying collateral, if impaired loans are collateral dependent.

Other financial assets

The carrying value of other financial assets, which primarily consist of accounts receivable from brokers, dealers, and customers for securities transactions, accrued income and collateral provided for derivative transactions, approximates the fair value of these assets since they generally involve limited losses from credit risk or have short-term maturities with interest rates that approximate market rates. The majority of other financial assets is classified as Level 2, and included in the table of Note 12 “Other assets and liabilities”.

Noninterest-bearing deposits, call money and funds purchased, and payables under repurchase agreements and securities lending transactions

The carrying value of short-term financial liabilities, such as noninterest-bearing deposits, call money and funds purchased, and payables under repurchase agreements and securities lending transactions approximates the fair value of these liabilities since they generally have short-term maturities with interest rates that approximate market rates.

Interest-bearing deposits

The carrying value of demand deposits approximates the fair value since it represents the amount payable on demand at the balance sheet date. The fair value of time deposits and certificates of deposit is primarily estimated based on discounted cash flow analysis using current interest rates for instruments with similar maturities. The carrying value of short-term certificates of deposit approximates the fair value.

Due to trust accounts

The carrying value of due to trust accounts approximates the fair value since they generally have short-term maturities with interest rates that approximate market rates.

Other short-term borrowings

The carrying value of the majority of short-term borrowings approximates the fair value since they generally have short-term maturities with interest rates that approximate market rates. The fair value of certain borrowings is estimated based on discounted cash flow analysis using interest rates approximating the MHFG Group’s incremental borrowing rates for instruments with similar maturities.

Long-term debt

Long-term debt is fair valued using quoted market prices, if available. Otherwise, the fair value of long-term debt is estimated based on discounted cash flow analysis using interest rates approximating the MHFG Group’s incremental borrowing rates for instruments with similar maturities.

Other financial liabilities

The carrying value of other financial liabilities, which primarily consist of accounts payable to brokers, dealers, and customers for securities transactions, accrued expenses and collateral accepted for derivative transactions, approximates the fair value since they generally have short-term maturities with interest rates that approximate market rates. The majority of other financial liabilities is classified as Level 2, and included in the table of Note 12 “Other assets and liabilities”.

The fair value of certain off-balance-sheet financial instruments, such as commitments to extend credit and commercial letters of credit, is not considered material to the consolidated balance sheets at March 31, 2013 and 2014.

The following table shows the carrying amounts and fair values at March 31, 2013 and 2014, of certain financial instruments, excluding financial instruments which are carried at fair value on a recurring basis and those outside the scope of ASC 825 such as the equity method investments and lease contracts as defined in ASC 840, “Leases” (“ASC 840”) :

	2013
	Carrying amount		Estimated fair value
			Total		Level 1		Level 2		Level 3
	(in billions of yen)
Financial assets:
Cash and due from banks, call loans and funds sold, and receivables under resale agreements and securities borrowing transactions		27,583		27,583		903		26,680		—
Investments		3,000		3,020		3,020		—		—
Loans, net of allowance for loan losses (Note)		69,028		70,261		—		—		70,261
Financial liabilities:
Noninterest-bearing deposits, call money and funds purchased, and payables under repurchase agreements and securities lending transactions		48,048		48,048		12,796		35,252		—
Interest-bearing deposits		87,247		87,210		34,596		52,614		—
Due to trust accounts		619		619		—		619		—
Other short-term borrowings		6,724		6,723		—		6,723		—
Long-term debt		8,235		8,598		—		7,967		631

	2014
	Carrying amount		Estimated fair value
			Total		Level 1		Level 2		Level 3
	(in billions of yen)
Financial assets:
Cash and due from banks, call loans and funds sold, and receivables under resale agreements and securities borrowing transactions		34,563		34,563		1,437		33,126		—
Investments		4,040		4,058		4,058		—		—
Loans, net of allowance for loan losses (Note)		72,801		73,975		—		—		73,975
Financial liabilities:
Noninterest-bearing deposits, call money and funds purchased, and payables under repurchase agreements and securities lending transactions		44,124		44,124		13,543		30,581		—
Interest-bearing deposits		88,744		88,705		37,394		51,311		—
Due to trust accounts		742		742		—		742		—
Other short-term borrowings		6,024		6,024		—		6,024		—
Long-term debt		9,176		9,441		—		8,600		841

Note: Loans, net of allowance for loan losses include items measured at fair value on a nonrecurring basis.

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Forecasted Benefit Payments Including Effect of Expected Future Service (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
2015	¥ 65,570
2016	68,183
2017	70,083
2018	71,558
2019	72,543
2020-2024	¥ 355,295

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Reconciliation of Income Tax Expense at Effective Statutory Tax Rate to Actual Income Tax Expense (Parenthetical) (Detail)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Reconciliation of Statutory Federal Tax Rate [Line Items]
Effective statutory tax rate	38.01%	38.01%	40.69%
March 31, 2015
Reconciliation of Statutory Federal Tax Rate [Line Items]
Effective statutory tax rate	35.64%	38.01%
March 31, 2016 and thereafter
Reconciliation of Statutory Federal Tax Rate [Line Items]
Effective statutory tax rate		35.64%

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Trading account gains and losses (Tables)

12 Months Ended

Mar. 31, 2014

Gain (Loss) on Investments

Net trading gains (losses) for the fiscal years ended March 31, 2012, 2013 and 2014 are comprised of the following:

	2012			2013			2014
	(in millions of yen)
Trading account gains (losses)—net:
Trading securities		227,056			468,029			80,606
Derivative contracts:
Interest rate contracts (1)		261,568			219,385			(79,562	)
Foreign exchange contracts		(146,258	)		(91,300	)		(13,167	)
Equity-related contracts (1)		(7,150	)		(59,462	)		(41,607	)
Credit-related contracts (2)		(2,184	)		(174	)		899
Other contracts		283			(2,378	)		(6,856	)
Total		333,315			534,100			(59,687	)
Foreign exchange gains (losses)—net (3)		98,054			20,514			25,631
Net trading gains (losses)		431,369			554,614			(34,056	)

Notes:

(1) The net gain (loss) excluded from the assessment of the effectiveness of fair value hedges is included in the above table.

(2) Amounts do not include the net loss of ¥3,391 million, ¥6,703 million and ¥8,660 million on the credit derivatives hedging the credit risk of loans during the fiscal years ended March 31, 2012, 2013 and 2014, respectively. The net loss is recorded in Other noninterest expenses.

(3) Amounts include realized and unrealized gains and losses on both derivative instruments and nonderivative instruments, such as translation gains and losses related to foreign currency-denominated available-for-sale securities for which the fair value option is elected in accordance with ASC 825.

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Dividends

12 Months Ended

Mar. 31, 2014

Dividends

15. Dividends

The amount available for dividends under the Companies Act is based on the amount recorded in MHFG’s non-consolidated general books of account, maintained in accordance with accounting principles generally accepted in Japan (“Japanese GAAP”) and adjusted by post period-end changes. Therefore, the consolidated shareholders’ equity under U.S. GAAP has no effect on the determination of the amount available for dividends. On March 31, 2014, MHFG’s capital stock, capital surplus and retained earnings were ¥2,254,973 million, ¥1,194,865 million and ¥1,419,866 million, respectively, under Japanese GAAP.

In making a distribution of retained earnings, an entity must set aside in its legal reserve an amount equal to one-tenth of the amount of retained earnings so distributed, until its legal reserve reaches to one-quarter of its capital stock. MHFG’s legal reserve at March 31, 2014 was ¥1,199,215 million, of which ¥1,194,865 million was included in capital surplus and ¥4,350 million in retained earnings.

In addition to the provision that requires an appropriation for the legal reserve, the Companies Act and the Banking Act impose certain limitations on the amount available for dividends. Under the Companies Act, MHFG’s maximum amount available for dividends, at March 31, 2014, was ¥1,412,282 million, based on the amount recorded in MHFG’s general books of account under Japanese GAAP. Under the Banking Act and related regulations, MHFG has to meet the minimum capital adequacy requirements. Distributions of retained earnings, which are otherwise distributable to shareholders, are restricted in order to maintain the minimum Common Equity Tier 1 capital ratio of 4.5% (3.5% in 2013 and 4.0% in 2014) for capital adequacy purposes under the rules in Basel III. See Note 17 “Regulatory matters” for further discussion of regulatory capital requirements.

Payment of dividends on shares of common stock is also subject to the prior payment of dividends on shares of preferred stock.

Dividends on preferred stock and common stock during the fiscal years ended March 31, 2012, 2013 and 2014 were as follows:

2012	Cash dividends (1)
Class of stock	Per share		In aggregate (2)
	(in yen)		(in millions of yen)
Eleventh series class XI preferred stock		30		12,173
Thirteenth series class XIII preferred stock		45		1,651
Common stock		9		202,684
Total				216,508

2013	Cash dividends
Class of stock	Per share		In aggregate (2)
	(in yen)		(in millions of yen)
Eleventh series class XI preferred stock		20		7,451
Thirteenth series class XIII preferred stock		30		1,101
Common stock		6		144,170
Total				152,722

2014	Cash dividends
Class of stock	Per share		In aggregate (2)
	(in yen)		(in millions of yen)
Eleventh series class XI preferred stock		20		6,717
Thirteenth series class XIII preferred stock (3)		15		550
Common stock		6		144,998
Total				152,265

Notes:

(1) As MHFG commenced distributing an interim dividend from the fiscal year ended March 31, 2012, the amounts for the fiscal year include such interim dividends.

(2) Dividends paid on treasury stock are excluded.

(3) On July 11, 2013, MHFG acquired and cancelled all of the shares of the thirteenth series class XIII preferred stock. Consequently, the amount for the fiscal year does not include interim dividends.

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Offsetting of financial assets and financial liabilities

12 Months Ended

Mar. 31, 2014

Offsetting of financial assets and financial liabilities

29. Offsetting of financial assets and financial liabilities

Derivatives

The MHFG Group enters into master netting arrangements such as International Swaps and Derivatives Association, Inc. (“ISDA”) or similar agreements with counterparties to manage mainly credit risks associated with counterparty default. If the predetermined events including counterparty default occur, these enforceable master netting arrangements or similar agreements give the Group the right to offset derivative receivables and derivative payables and related financial collateral such as cash and securities with the same counterparty.

Repurchase and resale agreements and securities lending and borrowing transactions

Repurchase and resale agreements and securities lending and borrowing transactions are generally covered by industry standard master repurchase agreements and industry standard master securities lending agreements with netting terms to manage mainly credit risks associated with counterparty default. In the event of default by the counterparty, these agreements with netting terms provide the Group with the right to offset receivables and payables related to such transactions with the same counterparty, and to liquidate the collateral held.

The following tables provide information about the offsetting of financial assets and financial liabilities at March 31, 2013 and 2014. The tables include derivatives, repurchase and resale agreements, and securities lending and borrowing transactions that are subject to enforceable master netting arrangements or similar agreements irrespective of whether or not they are offset on the Group’s consolidated balance sheets.

							Amounts not offset on the balance sheet(3)
	Gross amounts recognized		Gross amounts offset on the balance sheet		Net amounts presented on the balance sheet(2)		Financial instruments(4)		Cash collateral		Net amounts
	(in billions of yen)
2013
Assets (1):
Derivatives		13,019		—		13,019		11,289		446		1,284
Receivables under resale agreements		8,869		—		8,869		8,812		—		57
Receivables under securities borrowing transactions		5,544		—		5,544		5,534		—		10
Total		27,432		—		27,432		25,635		446		1,351
Liabilities (1):
Derivatives		12,712		—		12,712		11,234		653		825
Payables under repurchase agreements		17,397		—		17,397		17,280		—		117
Payables under securities lending transactions		11,326		—		11,326		11,320		—		6
Total		41,435		—		41,435		39,834		653		948
2014
Assets (1):
Derivatives		9,880		—		9,880		8,702		406		772
Receivables under resale agreements		8,236		—		8,236		8,200		—		36
Receivables under securities borrowing transactions		4,990		—		4,990		4,978		—		12
Total		23,106		—		23,106		21,880		406		820
Liabilities (1):
Derivatives		9,648		—		9,648		8,621		431		596
Payables under repurchase agreements		16,690		—		16,690		16,667		—		23
Payables under securities lending transactions		6,085		—		6,085		6,082		—		3
Total		32,423		—		32,423		31,370		431		622

Notes:

(1) Amounts relating to master netting arrangements or similar agreements where the Group does not have the legal right of set-off or where uncertainty exists as to the enforceability of these agreements are excluded. For derivatives, the table includes amounts relating to over-the-counter (“OTC”) and OTC-cleared derivatives that are subject to enforceable master netting arrangements or similar agreements.

(2) Derivative assets and liabilities are recorded in Trading account assets and Trading account liabilities, respectively.

(3) Amounts do not exceed the net amounts presented on the balance sheet and do not include the effect of overcollateralization, where it exists.

(4) For derivatives, amounts include derivative assets or liabilities and securities collateral that are eligible for offsetting under enforceable master netting arrangements or similar agreements.

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Associated Liabilities Collateralized by Pledged Assets (Detail) (JPY ¥) In Billions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Deposits	¥ 878	¥ 259
Call money and funds purchased	1,708	1,580
Payables under repurchase agreements	6,884	7,726
Payables under securities lending transactions	6,237	11,092
Other short-term borrowings	405	5,626
Long-term debt	5,632	321
Total	¥ 21,744	¥ 26,604

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Capital Requirements and Regulatory Adjustments Over Transitional Period (Detail)	12 Months Ended
	Mar. 31, 2014
March 2013
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	8.00%	[1]
Capital conservation buffer	0.00%
Phase out of recognition of capital instruments that no longer qualify as capital	90.00%	[1]
Phase-in of deductions from capital	0.00%	[1]
March 2013 | Common Equity Tier 1 Capital
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	3.50%	[1]
March 2013 | Tier I
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	4.50%	[1]
March 2013 | G-SIB
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Additional loss absorbency requirements for G-SIBs	-
March 2014
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	8.00%	[1]
Capital conservation buffer	0.00%
Phase out of recognition of capital instruments that no longer qualify as capital	80.00%	[1]
Phase-in of deductions from capital	20.00%	[1]
March 2014 | Common Equity Tier 1 Capital
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	4.00%	[1]
March 2014 | Tier I
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	5.50%	[1]
March 2014 | G-SIB
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Additional loss absorbency requirements for G-SIBs	-
March 2015
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	8.00%	[1]
Capital conservation buffer	0.00%
Phase out of recognition of capital instruments that no longer qualify as capital	70.00%	[1]
Phase-in of deductions from capital	40.00%	[1]
March 2015 | Common Equity Tier 1 Capital
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	4.50%	[1]
March 2015 | Tier I
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	6.00%	[1]
March 2015 | G-SIB
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Additional loss absorbency requirements for G-SIBs	-
March 2016
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	8.00%	[1]
Capital conservation buffer	0.625%
Phase out of recognition of capital instruments that no longer qualify as capital	60.00%	[1]
Phase-in of deductions from capital	60.00%	[1]
March 2016 | Common Equity Tier 1 Capital
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	4.50%	[1]
March 2016 | Tier I
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	6.00%	[1]
March 2016 | G-SIB
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Additional loss absorbency requirements for G-SIBs	Additional loss absorption capacity tailored to the impact of the entity's default, ranging from 1% to 2.5% of risk-weighted assets, to be met with Common Equity Tier 1 capital
March 2017
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	8.00%	[1]
Capital conservation buffer	1.25%
Phase out of recognition of capital instruments that no longer qualify as capital	50.00%	[1]
Phase-in of deductions from capital	80.00%	[1]
March 2017 | Common Equity Tier 1 Capital
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	4.50%	[1]
March 2017 | Tier I
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	6.00%	[1]
March 2017 | G-SIB
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Additional loss absorbency requirements for G-SIBs	Additional loss absorption capacity tailored to the impact of the entity's default, ranging from 1% to 2.5% of risk-weighted assets, to be met with Common Equity Tier 1 capital
March 2018
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	8.00%	[1]
Capital conservation buffer	1.875%
Phase out of recognition of capital instruments that no longer qualify as capital	40.00%	[1]
Phase-in of deductions from capital	100.00%	[1]
March 2018 | Common Equity Tier 1 Capital
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	4.50%	[1]
March 2018 | Tier I
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	6.00%	[1]
March 2018 | G-SIB
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Additional loss absorbency requirements for G-SIBs	Additional loss absorption capacity tailored to the impact of the entity's default, ranging from 1% to 2.5% of risk-weighted assets, to be met with Common Equity Tier 1 capital
March 2019
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	8.00%	[1]
Capital conservation buffer	2.50%
Phase out of recognition of capital instruments that no longer qualify as capital	30.00%	[1]
Phase-in of deductions from capital	100.00%	[1]
March 2019 | Common Equity Tier 1 Capital
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	4.50%	[1]
March 2019 | Tier I
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	6.00%	[1]
March 2019 | G-SIB
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Additional loss absorbency requirements for G-SIBs	Additional loss absorption capacity tailored to the impact of the entity's default, ranging from 1% to 2.5% of risk-weighted assets, to be met with Common Equity Tier 1 capital
March 2020
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	8.00%	[1]
Capital conservation buffer	2.50%
Phase out of recognition of capital instruments that no longer qualify as capital	20.00%	[1]
Phase-in of deductions from capital	100.00%	[1]
March 2020 | Common Equity Tier 1 Capital
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	4.50%	[1]
March 2020 | Tier I
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	6.00%	[1]
March 2020 | G-SIB
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Additional loss absorbency requirements for G-SIBs	Additional loss absorption capacity tailored to the impact of the entity's default, ranging from 1% to 2.5% of risk-weighted assets, to be met with Common Equity Tier 1 capital
March 2021
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	8.00%	[1]
Capital conservation buffer	2.50%
Phase out of recognition of capital instruments that no longer qualify as capital	10.00%	[1]
Phase-in of deductions from capital	100.00%	[1]
March 2021 | Common Equity Tier 1 Capital
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	4.50%	[1]
March 2021 | Tier I
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	6.00%	[1]
March 2021 | G-SIB
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Additional loss absorbency requirements for G-SIBs	Additional loss absorption capacity tailored to the impact of the entity's default, ranging from 1% to 2.5% of risk-weighted assets, to be met with Common Equity Tier 1 capital
March 2022
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	8.00%	[1]
Capital conservation buffer	2.50%
Phase out of recognition of capital instruments that no longer qualify as capital	0.00%	[1]
Phase-in of deductions from capital	100.00%	[1]
March 2022 | Common Equity Tier 1 Capital
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	4.50%	[1]
March 2022 | Tier I
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Minimum total capital	6.00%	[1]
March 2022 | G-SIB
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Additional loss absorbency requirements for G-SIBs	Additional loss absorption capacity tailored to the impact of the entity's default, ranging from 1% to 2.5% of risk-weighted assets, to be met with Common Equity Tier 1 capital

[1] While these measures are included in the revisions to capital adequacy guidelines that have been applied from March 31, 2013 as published by the Financial Services Agency, capital adequacy guidelines related to other requirements under the Basel III rules, such as the capital conservation buffer, countercyclical buffer and additional loss absorbency requirements for G-SIBs/G-SIFIs, have not yet been published.

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Net Trading Gains and Losses (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2012
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading account gains (losses)-net	¥ (59,687)		¥ 534,100		¥ 333,315
Foreign exchange gains (losses)-net	25,631	[1]	20,514	[1]	98,054	[1]
Net trading gains (losses)	(34,056)		554,614		431,369
Interest rate contracts
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading account gains (losses)-net	(79,562)	[2]	219,385	[2]	261,568	[2]
Foreign exchange contracts
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading account gains (losses)-net	(13,167)		(91,300)		(146,258)
Equity-related contracts
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading account gains (losses)-net	(41,607)	[2]	(59,462)	[2]	(7,150)	[2]
Credit-related contracts
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading account gains (losses)-net	899	[3]	(174)	[3]	(2,184)	[3]
Other contracts
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading account gains (losses)-net	(6,856)		(2,378)		283
Trading securities
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading account gains (losses)-net	¥ 80,606		¥ 468,029		¥ 227,056

[1] Amounts include realized and unrealized gains and losses on both derivative instruments and nonderivative instruments, such as translation gains and losses related to foreign currency-denominated available-for-sale securities for which the fair value option is elected in accordance with ASC 825.

[2] The net gain (loss) excluded from the assessment of the effectiveness of fair value hedges is included in the above table.

[3] Amounts do not include the net loss of ¥3,391 million, ¥6,703 million and ¥8,660 million on the credit derivatives hedging the credit risk of loans during the fiscal years ended March 31, 2012, 2013 and 2014, respectively. The net loss is recorded in Other noninterest expenses.

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Regulatory matters

12 Months Ended

Mar. 31, 2014

Regulatory matters

17. Regulatory matters

Regulatory capital requirements

MHFG, MHBK, and MHTB are subject to regulatory capital requirements administered by the Financial Services Agency in accordance with the provisions of the Banking Act and related regulations. Failure to meet minimum capital requirements may initiate certain mandatory actions by regulators that, if undertaken, could have a direct material effect on the MHFG Group’s consolidated financial condition and results of operations.

The capital adequacy guidelines applicable to Japanese banks and bank holding companies with international operations supervised by the Financial Services Agency closely follow the risk-adjusted approach proposed by the Bank for International Settlements (“BIS”) and are intended to further strengthen the soundness and stability of Japanese banks. Effective March 31, 2007, guidelines were implemented by the Financial Services Agency to comply with the capital adequacy requirements set by BIS called Basel II. The framework of Basel II is based on the following three pillars: minimum capital requirements; supervisory review; and market discipline.

In May 2011, the capital adequacy guidelines were revised by the Financial Services Agency to comply with the package of measures to enhance the Basel II framework approved by the Basel Committee on Banking Supervision in July 2009. The revised guidelines include the strengthening of rules governing trading book capital and the strengthening of treatment of certain securitizations under the first pillar. The revised guidelines have been effective since the end of December 2011.

In December 2010, the Basel Committee on Banking Supervision issued the Basel III rules text (later revised in June 2011 and January 2013), which presents the details of global regulatory standards on bank capital adequacy and liquidity agreed by the Governors and Heads of Supervision, which is the oversight body of the Basel Committee on Banking Supervision, and endorsed by the G20 Leaders at the Seoul summit in November 2010. The rules text sets out higher and better-quality capital, better risk coverage, the introduction of a leverage ratio as a backstop to the risk-based requirement, measures to promote the build-up of capital that can be drawn down in periods of stress, and the introduction of two global liquidity standards. The Financial Services Agency’s revisions to its capital adequacy guidelines became effective from March 31, 2013, which generally reflect rules in the Basel III rules text that have been applied from January 1, 2013. While the three-pillar structure of Basel II has been retained, Basel III includes various changes as described further below.

Under the first pillar, the capital ratio is calculated by dividing regulatory capital, or risk-based capital, by risk-weighted assets. With respect to the calculation of risk-weighted assets, the MHFG Group adopts the advanced internal ratings-based approach. Under such approach, balance sheet assets and off-balance sheet exposures, calculated under Japanese GAAP, are assessed in terms of credit risk according to risk components such as probability of default and loss given default, which are derived from the Group’s own internal credit experience. In addition to credit risk, banks are required to measure and apply capital charges with respect to their market risks. Market risk is defined as the risk of losses in on- and off-balance-sheet positions arising from movements in market prices. Operational risk, which was introduced under Basel II with respect to regulatory capital requirements, is the risk of loss resulting from inadequate or failed internal processes, people and systems, or from external events. The Group adopts the advanced measurement approach for the measurement of operational risk equivalent by taking account of the following four elements: internal loss data; external loss data; scenario analysis; and business environment and internal control factors. Under Basel III, the calculation method of risk-weighted assets was revised, including modification to the treatment of counterparty credit risk, such as a capital charge for credit valuation adjustment risk.

With regard to risk-based capital, the guidelines based on Basel III set out higher and better-quality capital standards compared to those under Basel II. The guidelines based on Basel III require a target minimum standard capital adequacy ratio of 8%, Tier 1 capital ratio of 6% (phased in at 4.5% in 2013 and 5.5% in 2014) and Common Equity Tier 1 capital ratio of 4.5% (phased in at 3.5% in 2013 and 4.0% in 2014), on both a consolidated and non-consolidated basis for banks with international operations, such as MHBK and MHTB, or on a consolidated basis for bank holding companies with international operations, such as MHFG.

Risk-based capital, calculated from financial statements prepared under Japanese GAAP, is classified into the following two tiers: Tier 1 capital; and Tier 2 capital. Tier 1 capital consists of Common Equity Tier 1 capital and Additional Tier 1 capital. Common Equity Tier 1 capital generally consists of common stock, capital surplus, retained earnings, accumulated other comprehensive income and other disclosed reserves and others less any regulatory adjustments. Additional Tier 1 capital generally consists of instruments issued by a bank or its holding company that meet the criteria for inclusion in Additional Tier 1 capital and others less any regulatory adjustments. Tier 2 capital generally consists of instruments issued by a bank or its holding company such as subordinated debt that meet the criteria for inclusion in Tier 2 capital, general reserve for possible losses on loans, equaling the sum of (i) the excess of the amount of qualified reserves over the amount of expected losses and (ii) the amount of general reserves calculated based on the standardized approach, and others less any regulatory adjustments.

The minimum requirement for Common Equity Tier 1 capital will be raised in phases from 3.5% of risk-weighted assets in March 2013 to 4.5% when fully effective in March 2015. Thereafter, a capital conservation buffer, to be met with Common Equity Tier 1 capital, is expected to be phased in beginning March 2016 at 0.625% until becoming fully effective in March 2019 at 2.5%, although the capital adequacy guidelines related to the capital conservation buffer have not yet been published by the Financial Services Agency. Thus the Common Equity Tier 1 capital requirement, including capital conservation buffer, is expected to be 7.0% beginning March 2019. In addition, subject to national discretion by the respective regulatory authorities, a countercyclical buffer ranging from 0% to 2.5%, consisting of Common Equity Tier 1 capital or other fully loss absorbing capital, would also be imposed on banking organizations through an extension of the capital conservation buffer when the relevant national authority judges a period of excess credit growth to be leading to the build-up of system-wide risk. The countercyclical buffer for internationally active banks will be a weighted average of the buffers deployed across all the jurisdictions to which it has credit exposures. Moreover, capital instruments that will no longer qualify as Additional Tier 1 capital or Tier 2 capital under Basel III is being phased out beginning March 2013 by increments of 10% until becoming fully effective in March 2022. The MHFG Group’s existing preferred stock and preferred securities (the amounts thereof included within Additional Tier 1 capital as of March 31, 2014 being ¥1,666.5 billion) and the Group’s existing subordinated debt issued before March 2013 (the amounts thereof included within Tier 2 capital as of March 31, 2014 being ¥1,349.6 billion) are subject to the phase-out arrangements.

In November 2011, the Financial Stability Board announced policy measures to address systemically important financial institutions (“SIFIs”), which were endorsed by the G20 Leaders at the Cannes summit. The policy measures include requirements for globally systemically important banks (“G-SIBs”) to have additional loss absorption capacity tailored to the impact of their default, ranging from 1% to 2.5% of risk-weighted assets, to be met with Common Equity Tier 1 capital, which would be in addition to the 7.0% Common Equity Tier 1 capital requirement (including capital conservation buffer). The additional loss absorbency requirements will initially apply to G-SIBs identified in November 2014. The requirements will be phased in starting in January 2016 with full implementation by January 2019. Also in November 2011, the Financial Stability Board identified an initial group of G-SIFIs, namely 29 G-SIBs, including the MHFG Group, using a methodology developed by the Basel Committee on Banking Supervision, and announced that the group of G-SIFIs will be updated annually and published by the Financial Stability Board each November. In November 2012 and November 2013, the list of G-SIBs was updated and it showed the allocation to buckets corresponding to their required level of additional loss absorbency. The Group was included in the lists and was allocated to the bucket that would require 1.0% of additional loss absorbency.

Regulatory adjustments are to be applied mainly to the calculation of Common Equity Tier 1 capital in the form of the deductions and prudential filters related to the following:

• Goodwill and other intangibles

• Deferred tax assets

• Deferred gains or losses on derivatives under hedge accounting that relates to the hedging of items that are not fair valued on the balance sheet

• Shortfall of the stock of provisions to expected losses under the internal ratings-based approach

• Gain on sale related to securitization transactions

• Cumulative gains and losses due to changes in own credit risk on fair valued financial liabilities

• Defined benefit pension fund assets and liabilities

• Treasury stock

• Reciprocal cross holdings of capital of banking, financial and insurance entities

• Investments in the capital of banking, financial and insurance entities that are outside the scope of regulatory consolidation

Regulatory adjustments will be fully deducted in the calculation of Common Equity Tier 1 capital by March 2018. The regulatory adjustments began at 20% of the required deductions in the calculation of Common Equity Tier 1 capital in March 2014 and will be increased by 20% increments per year through March 2018 when the regulatory adjustments reach 100%. During this transition period, the remainder not deducted from capital will continue to be subject to existing national treatments.

The capital requirements and regulatory adjustments will be phased in over a transitional period as follows (italicized percentages indicate those still in transition periods):

	March 2013			March 2014			March 2015			March 2016			March 2017			March 2018			March 2019			March 2020			March 2021			March 2022
Minimum Common Equity Tier 1 capital (Note)		3.5	%		4.0	%		4.5	%		4.5	%		4.5	%		4.5	%		4.5	%		4.5	%		4.5	%		4.5	%
Minimum Tier 1 capital (Note)		4.5	%		5.5	%		6.0	%		6.0	%		6.0	%		6.0	%		6.0	%		6.0	%		6.0	%		6.0	%
Minimum total capital (Note)		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%		8.0	%
Capital conservation buffer		0.0	%		0.0	%		0.0	%		0.625	%		1.25	%		1.875	%		2.5	%		2.5	%		2.5	%		2.5	%
Phase out of recognition of capital instruments that no longer qualify as capital (Note)		90.0	%		80.0	%		70.0	%		60.0	%		50.0	%		40.0	%		30.0	%		20.0	%		10.0	%		0.0	%
Phase-in of deductions from capital (Note)		0.0	%		20.0	%		40.0	%		60.0	%		80.0	%		100.0	%		100.0	%		100.0	%		100.0	%		100.0	%
Additional loss absorbency requirements for G-SIBs		—			—			—			Additional loss absorption capacity tailored to the impact of the entity’s default, ranging from 1% to 2.5% of risk-weighted assets, to be met with Common Equity Tier 1 capital

Note: While these measures are included in the revisions to capital adequacy guidelines that have been applied from March 31, 2013 as published by the Financial Services Agency, capital adequacy guidelines related to other requirements under the Basel III rules, such as the capital conservation buffer, countercyclical buffer and additional loss absorbency requirements for G-SIBs/G-SIFIs, have not yet been published.

Japanese banks are also required to comply with the supervisory review process (second pillar) and disclosure requirements for market discipline (third pillar). Under the second pillar, banks are required to maintain adequate capital to support all of the major risks in their business and are encouraged to develop and use better risk management techniques in monitoring and managing such risks. Under the third pillar, banks are required to enhance disclosure, including disclosure of details of the capital adequacy ratio, the amount of each type of risk and the method of calculation used so that the market may make more effective evaluations. Further, the revisions to the Financial Services Agency’s guidelines relating to the third pillar, which reflect the enhanced disclosure requirements under Basel III and became effective on March 31, 2013, require banks to disclose, among other things, the components of their regulatory capital and the main features of their regulatory capital instruments in common templates.

If the capital adequacy ratio of a financial institution falls below the required level, the Financial Services Agency may, depending upon the extent of capital deterioration, take certain corrective action, including requiring the financial institution to submit an improvement plan to strengthen its capital base, reduce its total assets, restrict its business operations or other actions that could have a material effect on its financial condition and results of operations.

Capital adequacy ratios of MHFG, MHBK, and MHTB as of March 31, 2013 and 2014 calculated in accordance with Japanese GAAP and guidelines established by the Financial Services Agency are set forth in the following table:

	2013				2014
	Amount		Ratio		Amount		Ratio
	(in billions of yen, except percentages)
Consolidated:
MHFG:
Common Equity Tier 1 capital:
Required		2,059		3.50		2,411		4.00
Actual		4,804		8.16		5,304		8.79
Tier 1 capital:
Required		2,647		4.50		3,316		5.50
Actual		6,487		11.02		6,845		11.35
Total risk-based capital:
Required		4,706		8.00		4,823		8.00
Actual		8,345		14.18		8,656		14.35
MHBK (Note):
Common Equity Tier 1 capital:
Required		—		—		2,130		4.00
Actual		—		—		5,387		10.11
Tier 1 capital:
Required		—		—		2,928		5.50
Actual		—		—		6,525		12.25
Total risk-based capital:
Required		—		—		4,259		8.00
Actual		—		—		8,180		15.36
MHTB:
Common Equity Tier 1 capital:
Required		91		3.50		103		4.00
Actual		344		13.24		379		14.76
Tier 1 capital:
Required		117		4.50		141		5.50
Actual		344		13.24		379		14.76
Total risk-based capital:
Required		208		8.00		205		8.00
Actual		448		17.21		457		17.80
Non-consolidated:
MHBK (Note):
Common Equity Tier 1 capital:
Required		—		—		2,072		4.00
Actual		—		—		5,260		10.15
Tier 1 capital:
Required		—		—		2,849		5.50
Actual		—		—		6,370		12.29
Total risk-based capital:
Required		—		—		4,144		8.00
Actual		—		—		8,072		15.58
MHTB:
Common Equity Tier 1 capital:
Required		90		3.50		101		4.00
Actual		345		13.45		375		14.76
Tier 1 capital:
Required		115		4.50		139		5.50
Actual		345		13.45		375		14.76
Total risk-based capital:
Required		205		8.00		203		8.00
Actual		446		17.43		451		17.79

Note: The former MHBK and the former MHCB merged on July 1, 2013 and the former MHCB, the surviving company, changed its trade name to MHBK.

Capital adequacy ratios of the former MHCB and the former MHBK as of March 31, 2013 are set forth in the following table:

	March 31, 2013
	Consolidated				Non-consolidated
	Amount		Ratio		Amount		Ratio
	(in billions of yen, except percentages)
The former MHCB (1):
Common Equity Tier 1 capital:
Required		1,292		3.50		1,143		3.50
Actual		3,195		8.65		2,993		9.16
Tier 1 capital:
Required		1,661		4.50		1,470		4.50
Actual		4,071		11.03		3,980		12.18
Total risk-based capital:
Required		2,953		8.00		2,613		8.00
Actual		5,130		13.89		5,008		15.33
The former MHBK (2) (3):
Common Equity Tier 1 capital:
Required		810		3.50		793		3.50
Actual		2,061		8.90		2,009		8.86
Tier 1 capital:
Required		1,041		4.50		1,020		4.50
Actual		2,344		10.13		2,252		9.93
Total risk-based capital:
Required		1,850		8.00		1,813		8.00
Actual		3,259		14.08		3,163		13.95

Notes:

(1) The distribution of all of the shares of MHSC to MHFG as a dividend in kind (¥424.4 billion) on April 1, 2013 was deducted from Common Equity Tier 1 capital.

(2) The amounts and ratios were calculated in accordance with Basel III and are included for reference purpose only because the former MHBK was subject to Basel II requirements as of March 31, 2013 as a financial institution without overseas operations to which only domestic capital adequacy requirements applied.

(3) The distribution of all of the shares of MHSC to MHFG as a dividend in kind (¥125.7 billion) on April 1, 2013 was deducted from Common Equity Tier 1 capital.

MHFG’s securities subsidiaries in Japan are also subject to the capital adequacy requirement under the Financial Instruments and Exchange Act. Under this requirement, securities firms must maintain a minimum capital adequacy ratio of 120% calculated as a percentage of capital accounts less certain assets, as determined in accordance with Japanese GAAP, against amounts equivalent to market, counterparty, and basic risks. Specific guidelines are issued as a ministerial ordinance that details the definition of essential components of the capital ratios, including capital, disallowed assets and risks, and related measures. Failure to maintain a minimum capital ratio will trigger mandatory regulatory actions. A capital ratio of less than 140% will call for regulatory reporting and a capital ratio of less than 100% may lead to a temporary suspension of all or part of the business operations and further, to the cancellation of the license to act as a securities broker and dealer.

Management believes, as of March 31, 2014, that MHFG, MHBK, MHTB, and their securities subsidiaries in Japan were in compliance with all capital adequacy requirements to which they were subject.

Business improvement orders

In September 2013, the Financial Services Agency issued a business improvement order to MHBK in connection with the transactions with anti-social elements in relation to a portion of certain joint loans. The business improvement order requires it to carry out promptly the measures to review, improve and reinforce the current structure of compliance and business administration thoroughly.

In December 2013, the Financial Services Agency issued business improvement orders to MHFG and MHBK with regard to the above mentioned transactions. The order to MHFG requires it to implement measures including clarification of where management responsibility lies based on the order and strengthening of its management control system. The order to MHBK requires it to cease new credit transactions under the four-party captive loan scheme for one month from January 20, 2014, as well as to implement the same measures as the order to MHFG.

The MHFG Group has been and will be rigidly implementing its improvement plans in relation to this problem and also work with utmost effort towards further improvement and reinforcement of its internal control systems.

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Business segment information (Tables)

12 Months Ended

Mar. 31, 2014

Schedule of Segment Reporting Information, by Segment

The information below for reportable segments is derived from the internal management reporting systems. Management does not use information on segments’ assets to allocate resources and assess performance and has not prepared information on segment assets. Accordingly, information on segment assets is not available.

	The former MHBK (Consolidated)
				The former MHBK (Non-consolidated)														The former MHIS (Consolidated)		Others
2012(1)	Total			Total		Personal Banking (a)		Retail Banking (b)		Corporate Banking (Large Corporations) (c)		Corporate Banking (d)		Financial Institution & Public Sector Business (e)		Trading and others (f)		(g)		(h)
	(in billions of yen)
Gross profits:
Net interest income (expense)		583.9			545.4		224.3		95.1		17.8		118.6		22.2		67.4		0.7		37.8
Net noninterest income		305.8			253.3		32.1		41.0		19.0		68.2		8.6		84.4		43.9		8.6
Total		889.7			798.7		256.4		136.1		36.8		186.8		30.8		151.8		44.6		46.4
General and administrative expenses		608.5			556.4		218.6		108.2		18.5		86.4		14.5		110.2		40.9		11.2
Others		(14.0	)		—		—		—		—		—		—		—		—		(14.0	)
Net business profits (losses)		267.2			242.3		37.8		27.9		18.3		100.4		16.3		41.6		3.7		21.2

	The former MHCB (Consolidated)																					MHTB (Consolidated)			Others			MHFG (Consolidated)
				The former MHCB (Non-consolidated)												The former MHSC (Consolidated)			Others
2012(1)	Total			Total		Corporate Banking (Large Corporations) (i)		Corporate Banking (j)		Financial Institution & Public Sector Business (k)		Inter- national Banking (l)		Trading and others (m)		(n)			(o)			(p)			(q)			Total
(in billions of yen)
Gross profits:
Net interest income (expense)		468.3			395.0		150.6		2.7		18.1		90.3		133.3		(8.1	)		81.4			42.5			(6.4	)		1,088.3
Net noninterest income		449.4			286.8		114.4		1.1		15.8		86.9		68.6		151.7			10.9			104.8			54.8			914.8
Total		917.7			681.8		265.0		3.8		33.9		177.2		201.9		143.6			92.3			147.3			48.4			2,003.1
General and administrative expenses		465.4			244.9		75.6		1.3		11.6		60.3		96.1		192.9			27.6			92.3			40.1			1,206.3
Others		(52.1	)		—		—		—		—		—		—		(0.1	)		(52.0	)		(3.7	)		(7.9	)		(77.7	)
Net business profits (losses)		400.2			436.9		189.4		2.5		22.3		116.9		105.8		(49.4	)		12.7			51.3			0.4			719.1

	The former MHBK (Consolidated)
				The former MHBK (Non-consolidated)														Others
2013(1)(2)(4)	Total			Total		Personal Banking (a)		Retail Banking (b)		Corporate Banking (Large Corporations) (c)		Corporate Banking (d)		Financial Institution & Public Sector Business (e)		Trading and others (f)		(g)
	(in billions of yen)
Gross profits:
Net interest income (expense)		550.6			513.8		219.2		83.3		14.9		106.1		19.9		70.4		36.8
Net noninterest income		360.3			313.7		33.9		42.3		19.3		70.7		11.0		136.5		46.6
Total		910.9			827.5		253.1		125.6		34.2		176.8		30.9		206.9		83.4
General and administrative expenses		568.2			524.4		218.6		113.7		11.6		73.2		14.3		93.0		43.8
Others		(7.4	)		—		—		—		—		—		—		—		(7.4	)
Net business profits (losses)		335.3			303.1		34.5		11.9		22.6		103.6		16.6		113.9		32.2

2013(1)(2)(4)	The former MHCB (Consolidated)																						MHTB (Consolidated)			Others			MHFG (Consolidated)
				The former MHCB (Non-consolidated)													MHSC (Consolidated)			Others
	Total			Total		Corporate Banking (Large Corporations) (h)		Corporate Banking (i)			Financial Institution & Public Sector Business (j)		Inter- national Banking (k)		Trading and others (l)		(m)			(n)			(o)			(p)			Total
(in billions of yen)
Gross profits:
Net interest income (expense)		486.1			401.7		140.9		0.5			16.3		108.2		135.8		(1.8	)		86.2			39.5			(0.3	)		1,075.9
Net noninterest income		572.8			333.4		103.3		0.2			13.2		104.7		112.0		229.0			10.4			105.0			57.7			1,095.8
Total		1,058.9			735.1		244.2		0.7			29.5		212.9		247.8		227.2			96.6			144.5			57.4			2,171.7
General and administrative expenses		471.9			241.1		76.8		1.3			12.2		66.6		84.2		197.1			33.7			90.1			40.8			1,171.0
Others		(50.0	)		—		—		—			—		—		—		—			(50.0	)		(3.5	)		(27.6	)		(88.5	)
Net business profits (losses)		537.0			494.0		167.4		(0.6	)		17.3		146.3		163.6		30.1			12.9			50.9			(11.0	)		912.2

2014(1)(2)(3)(4)	MHBK (Consolidated)																							MHTB (Consolidated)			MHSC (Consolidated)		Others			MHFG (Consolidated)
				MHBK (Non-consolidated)																	Others
	Total			Total		Personal Banking (a)		Retail Banking (b)		Corporate Banking (Large Corporations) (c)		Corporate Banking (d)		Financial Institution & Public Sector Business (e)		Inter- national Banking (f)		Trading and others (g)			(h)			(i)			(j)		(k)			Total
(in billions of yen)
Gross profits:
Net interest income		933.8			800.1		165.0		59.8		170.2		77.9		30.7		128.9		167.6			133.7			40.2			2.9		131.4			1,108.3
Net noninterest income (expenses)		407.4			398.2		32.9		34.8		126.7		51.8		20.1		139.8		(7.9	)		9.2			108.1			283.9		127.6			927.0
Total		1,341.2			1,198.3		197.9		94.6		296.9		129.7		50.8		268.7		159.7			142.9			148.3			286.8		259.0			2,035.3
General and administrative expenses		711.3			659.0		171.3		87.8		83.8		58.8		25.1		82.5		149.7			52.3			90.9			246.2		180.9			1,229.3
Others		(56.1	)		—		—		—		—		—		—		—		—			(56.1	)		(2.9	)		—		(2.7	)		(61.7	)
Net business profits		573.8			539.3		26.6		6.8		213.1		70.9		25.7		186.2		10.0			34.5			54.5			40.6		75.4			744.3

Notes:

(1) As for the fiscal year ended March 31, 2012, “Others (h)”, “Others (o)”, and “Others (q)” include elimination of transactions between consolidated subsidiaries. As for the fiscal year ended March 31, 2013, “Others (g)”, “Others (n)”, and “Others (p)” include elimination of transactions between consolidated subsidiaries. As for the fiscal year ended March 31, 2014, “Others (h)” and “Others (k)” include elimination of transactions between consolidated subsidiaries.

(2) Beginning on April 1, 2013, the MHFG Group moved to a new group operational structure and realigned the reportable segments to reflect the new organizational structure. In addition, new allocation methods have been applied to the calculation of “Gross profits” and “General and administrative expenses”. Figures for the fiscal year ended March 31, 2013 have been reclassified under the new allocation methods. The effect of the change of allocation methods is not significant.

(3) As for the fiscal year ended March 31, 2014, “MHBK (Non-consolidated)” represents the sum of the performance of the former MHCB for the first quarter and the new MHBK for the second, third, and fourth quarters, while “Others (h)” includes the performance of the former MHBK for the first quarter, in light of the merger of the former MHBK and the former MHCB conducted in July 2013.

(4) Beginning on April 1, 2013, MHSC was turned into a directly-held subsidiary of MHFG. As for the fiscal year ended March 31, 2013, “MHSC (Consolidated) (m)” represents the performance of the former MHSC for the first three quarters and the new MHSC for the fourth quarter, while “Others (g)” includes the performance of the former MHIS for the first three quarters. As for the fiscal year ended March 31, 2014, “MHSC (Consolidated) (j)” represents the performance of the new MHSC, in light of the merger of the former MHSC and the former MHIS conducted in January 2013.

Aggregation of MHBK and MHCB

2012	MHBK and MHCB
	Personal Banking (a)		Retail Banking (b)		Corporate Banking (Large Corporations) (c)		Corporate Banking (d)		Financial Institution & Public Sector Business (e)		International Banking (f)		Trading and others (g)		Total
	(in billions of yen)
Gross profits:
Net interest income		224.3		95.1		168.4		121.3		40.3		90.3		200.7		940.4
Net noninterest income		32.1		41.0		133.4		69.3		24.4		86.9		153.0		540.1
Total		256.4		136.1		301.8		190.6		64.7		177.2		353.7		1,480.5
General and administrative expenses		218.6		108.2		94.1		87.7		26.1		60.3		206.3		801.3
Others		—		—		—		—		—		—		—		—
Net business profits		37.8		27.9		207.7		102.9		38.6		116.9		147.4		679.2

2013	MHBK and MHCB
	Personal Banking (a)		Retail Banking (b)		Corporate Banking (Large Corporations) (c)		Corporate Banking (d)		Financial Institution & Public Sector Business (e)		International Banking (f)		Trading and others (g)		Total
	(in billions of yen)
Gross profits:
Net interest income		219.2		83.3		155.8		106.6		36.2		108.2		206.2		915.5
Net noninterest income		33.9		42.3		122.6		70.9		24.2		104.7		248.5		647.1
Total		253.1		125.6		278.4		177.5		60.4		212.9		454.7		1,562.6
General and administrative expenses		218.6		113.7		88.4		74.5		26.5		66.6		177.2		765.5
Others		—		—		—		—		—		—		—		—
Net business profits		34.5		11.9		190.0		103.0		33.9		146.3		277.5		797.1

2014	MHBK and MHCB
	Personal Banking (a)		Retail Banking (b)		Corporate Banking (Large Corporations) (c)		Corporate Banking (d)		Financial Institution & Public Sector Business (e)		International Banking (f)		Trading and others (g)		Total
	(in billions of yen)
Gross profits:
Net interest income		218.5		80.0		172.7		103.3		35.4		128.9		185.0		923.8
Net noninterest income		41.6		45.3		131.4		64.7		22.3		139.8		15.2		460.3
Total		260.1		125.3		304.1		168.0		57.7		268.7		200.2		1,384.1
General and administrative expenses		226.4		116.7		87.2		77.7		29.0		82.5		171.6		791.1
Others		—		—		—		—		—		—		—		—
Net business profits		33.7		8.6		216.9		90.3		28.7		186.2		28.6		593.0

Note: The former MHBK and the former MHCB merged on July 1, 2013. Figures for the fiscal years ended March 31, 2012 and 2013 represent the simple aggregation of the performance of the former MHBK and the former MHCB, and figures for the fiscal year ended March 31, 2014 represent the simple aggregation of the performance of the former MHBK and the former MHCB for the first quarter, and the new MHBK for the second, third, and fourth quarters. Beginning on April 1, 2013, the MHFG Group moved to a new group operational structure and realigned the reportable segments to reflect the new organizational structure. In addition, new allocation methods have been applied to the calculation of “Gross profits” and “General and administrative expenses”. Figures for the fiscal year ended March 31, 2013 have been reclassified under the new allocation methods.

Reconciliation of Operating Profit (Loss) from Segments to Consolidated

A reconciliation of total net business profits under the internal management reporting system for the fiscal years ended March 31, 2012, 2013, and 2014 presented above to Income before income tax expense shown on the consolidated statements of income is as follows:

	2012			2013			2014
	(in billions of yen)
Net business profits		719.1			912.2			744.3
U.S. GAAP adjustments		87.2			129.2			(325.4	)
(Provision) credit for loan losses		23.0			(139.9	)		126.2
Net gains (losses) related to equity investments		(90.5	)		28.2			178.7
Non-recurring personnel expense		(39.3	)		(23.5	)		(14.8	)
Gains on disposal of premises and equipment		19.9			12.4			10.5
(Provision) credit for losses on off-balance-sheet instruments		1.2			(4.6	)		(12.1	)
Others—net		(57.8	)		(28.8	)		18.9
Income before income tax expense		662.8			885.2			726.3

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Other Assets and Liabilities (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Other assets:
Accounts receivable from brokers, dealers and customers for securities transactions	¥ 1,122,247	¥ 907,671
Collateral provided for derivative transactions	466,420	742,307
Prepaid pension cost	403,654	153,414
Miscellaneous receivables	315,037	120,322
Margins provided for futures contracts	147,376	99,844
Security deposits	121,675	102,031
Loans held for sale	58,745	9,820
Other	563,841	466,542
Total	3,198,995	2,601,951
Other liabilities:
Accounts payable to brokers, dealers and customers for securities transactions	1,325,455	1,560,345
Guaranteed trust principal	591,647	535,720
Miscellaneous payables	473,028	260,665
Collateral accepted for derivative transactions	432,820	503,101
Factoring amounts owed to customers	382,189	375,933
Margins accepted for futures contracts	289,381	199,930
Unearned income	141,735	141,189
Other	785,768	791,243
Total	¥ 4,422,023	¥ 4,368,126

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Gains and Losses Information Related to Fair Value Hedges (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recorded in income- Derivatives	¥ 801	¥ 396	¥ (499)
Gains (losses) recorded in income- Hedged items	(1,112)	(475)	428
Gains (losses) recorded in income- Hedge ineffectiveness
Gains (losses) recorded in income- Net gain (loss) excluded from assessment of effectiveness	(311)	(79)	(71)
Interest rate contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recorded in income- Derivatives		44	(214)
Gains (losses) recorded in income- Hedged items		(81)	150
Gains (losses) recorded in income- Hedge ineffectiveness
Gains (losses) recorded in income- Net gain (loss) excluded from assessment of effectiveness		(37)	(64)
Equity-related contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recorded in income- Derivatives	801	352	(285)
Gains (losses) recorded in income- Hedged items	(1,112)	(394)	278
Gains (losses) recorded in income- Hedge ineffectiveness
Gains (losses) recorded in income- Net gain (loss) excluded from assessment of effectiveness	¥ (311)	¥ (42)	¥ (7)

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CONSOLIDATED STATEMENTS OF CASH FLOWS (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net income	¥ 500,235	¥ 881,156	¥ 648,957
Less: Net income (loss) attributable to noncontrolling interests	1,751	5,744	(7,432)
Net income attributable to MHFG shareholders	498,484	875,412	656,389
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	161,258	157,165	165,721
Provision (credit) for loan losses	(126,230)	139,947	(23,044)
Investment losses (gains)-net	(265,531)	(121,159)	32,991
Foreign exchange losses (gains)-net	127,254	160,588	(5,747)
Deferred income tax expense (benefit)	90,375	(43,831)	(40,939)
Net change in trading account assets	7,205,841	(2,336,912)	(2,953,353)
Net change in trading account liabilities	(2,359,775)	(536,213)	329,761
Net change in loans held for sale	(53,291)	4,571	3,860
Net change in accrued income	21,735	(22,386)	(9,321)
Net change in accrued expenses	12,262	(20,215)	15,286
Other-net	638,926	445,045	38,965
Net cash provided by (used in) operating activities	5,951,308	(1,297,988)	(1,789,431)
Cash flows from investing activities:
Proceeds from sales of investments	64,003,905	75,617,212	69,659,407
Proceeds from maturities of investments	9,862,926	14,578,614	15,079,088
Purchases of investments	(65,822,738)	(89,109,906)	(87,496,663)
Proceeds from sales of loans	215,419	144,244	224,957
Net change in loans	(2,313,291)	(2,501,863)	(1,703,880)
Net change in interest-bearing deposits in other banks	(7,417,572)	(4,638,673)	2,074,843
Net change in call loans and funds sold, and receivables under resale agreements and securities borrowing transactions	2,306,310	(268,103)	480,641
Proceeds from sales of premises and equipment	39,324	18,002	13,231
Purchases of premises and equipment	(456,980)	(161,359)	(174,517)
Net cash provided by (used in) investing activities	417,303	(6,321,832)	(1,842,893)
Cash flows from financing activities:
Net change in deposits	657,308	7,417,964	2,109,866
Net change in debentures			(740,933)
Net change in call money and funds purchased, and payables under repurchase agreements and securities lending transactions	(6,771,338)	7,468,344	3,594,469
Net change in due to trust accounts	122,765	59,537	(69,662)
Net change in other short-term borrowings	(724,788)	(7,251,033)	(1,261,955)
Proceeds from issuance of long-term debt	1,999,764	1,602,983	1,052,849
Repayment of long-term debt	(1,097,627)	(1,488,151)	(1,479,148)
Proceeds from noncontrolling interests	43,083	1,057	627
Payment to noncontrolling interests	(1)	(11)	(107)
Proceeds from issuance of common stock			5
Proceeds from sales of treasury stock	11	1,074	1,961
Purchases of treasury stock	(37,013)	(7)	(2,560)
Dividends paid	(152,163)	(152,514)	(215,902)
Dividends paid to noncontrolling interests	(12,006)	(19,384)	(23,666)
Net cash provided by (used in) financing activities	(5,972,005)	7,639,859	2,965,844
Effect of exchange rate changes on cash and due from banks	31,831	31,776	(1,424)
Net increase (decrease) in cash and due from banks	428,437	51,815	(667,904)
Cash and due from banks at beginning of fiscal year	1,268,442	1,216,627	1,884,531
Cash and due from banks at end of fiscal year	1,696,879	1,268,442	1,216,627
Supplemental disclosure of cash flow information:
Interest paid	408,803	447,766	427,104
Income taxes paid (refunded), net	122,619	92,547	40,211
Noncash investing activities:
Transfer from loans into other investments			1,351
Investment in capital leases	7,901	8,547	2,985
Noncash acquisition of noncontrolling interests in stock exchanges (Note 14)			¥ 216,558

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CONSOLIDATED BALANCE SHEETS (Parenthetical) (JPY ¥) In Millions, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Trading account assets, assets pledged that secured parties are permitted to sell or repledge	¥ 9,445,432	¥ 12,090,161
Available-for-sale securities, assets pledged that secured parties are permitted to sell or repledge	3,422,827	6,549,038
Long-term debt, liabilities accounted for at fair value	¥ 657,626	¥ 552,354
Common stock, par value	¥ 0	¥ 0
Common stock, authorized	48,000,000,000	48,000,000,000
Common stock, issued	24,263,885,187	24,164,864,477
Treasury stock, shares	13,817,747	22,128,230

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Due to trust accounts

12 Months Ended

Mar. 31, 2014

Due to trust accounts

10. Due to trust accounts

MHTB and TCSB, which are MHFG’s trust bank subsidiaries, hold assets on behalf of their customers in an agent, fiduciary or trust capacity. Such trust account assets are not the MHFG Group’s proprietary assets and are managed and accounted for separately. However, the cash in individual trust accounts is often placed with MHTB and TCSB for the customers’ short-term investment needs. These amounts which MHTB and TCSB owe to the trust accounts are recorded as Due to trust accounts.

The MHFG Group consolidates certain guaranteed principal money trusts. See Note 25 “Variable interest entities and securitizations” for further discussion of the guaranteed principal money trust.

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Details of Other Short-Term Borrowings (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Short-term Debt [Line Items]
Short-term notes	¥ 497,100	[1]	¥ 477,400	[1]
Borrowings from the Bank of Japan	5,138,003		5,884,304
Other	101,901		110,119
Total	6,023,972		6,724,100
Consolidated VIEs
Short-term Debt [Line Items]
Commercial paper and short-term notes issued	286,968	[1],[2]	252,277	[1],[2]
Short-term notes	87,468		88,083
Total	¥ 287,910		¥ 253,311

[1] Short-term notes are issued under laws of Japan in the form of dematerialized commercial paper, whose characteristics are economically the same as commercial paper.

[2] Commercial paper and short-term notes issued by consolidated VIEs of asset-backed commercial paper programs in the above table consist of commercial paper and short-term notes, of which amounts were ¥164,194 million and ¥88,083 million, respectively, at March 31, 2013, and ¥199,500 million and ¥87,468 million, respectively, at March 31, 2014.

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Changes in Goodwill (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013	Mar. 31, 2012
Goodwill [Line Items]
Balance at beginning of fiscal year	¥ 6,147		¥ 5,635	¥ 7,610
Goodwill acquired	7,719	[1]		3,776	[2]
Impairment losses recognized	3,792			5,637
Foreign exchange translation	1,475		512	(114)
Balance at end of fiscal year	11,549		6,147	5,635
Gross amount of goodwill	80,615		71,421	70,909
Accumulated impairment losses	69,066		65,274	65,274
Mizuho Bank Limited
Goodwill [Line Items]
Balance at beginning of fiscal year	6,147		5,635	7,610
Goodwill acquired	7,719	[1]		3,776	[2]
Impairment losses recognized	3,792			5,637
Foreign exchange translation	1,475		512	(114)
Balance at end of fiscal year	11,549		6,147	5,635
Gross amount of goodwill	80,615		71,421	70,909
Accumulated impairment losses	¥ 69,066		¥ 65,274	¥ 65,274

[1] Goodwill acquired is entirely related to the acquisition of Banco Mizuho do Brasil S.A.

[2] Goodwill acquired is entirely related to the acquisition of PT. Mizuho Balimor Finance.

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Premises and Equipment (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Property, Plant and Equipment [Line Items]
Land	¥ 410,739	¥ 268,948
Buildings	800,680	743,473
Equipment and furniture	435,655	418,647
Leasehold improvements	92,052	90,306
Construction in progress	35,789	23,875
Software	725,287	657,702
Total	2,500,202	2,202,951
Less: Accumulated depreciation and amortization	1,143,608	1,110,962
Premises and equipment-net	¥ 1,356,594	¥ 1,091,989

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Regulatory Matters - Additional Information (Detail) (JPY ¥) In Billions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements [Line Items]
Capital adequacy ratio	120.00%
Common Equity Tier 1 capital requirement, including capital conservation buffer	7.00%
Increments of capital investment	10.00%
Additional Tier 1 capital	¥ 1,666.5
Tier 2 capital	¥ 1,349.6
Additional loss absorbency	1.00%
Adjustment in the calculation of Common Equity	20.00%
Increased in Common Equity	20.00%
Date at which regulatory adjustments reach 100%	2018-03
Description of regulatory actions for not maintaining the minimum capital ratio concerning securities subsidiaries	A capital ratio of less than 140% will call for regulatory reporting and a capital ratio of less than 100% may lead to a temporary suspension of all or part of the business operations and further, to the cancellation of the license to act as a securities broker and dealer.
Minimum
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements [Line Items]
Buffer ranging percentage	0.00%
Minimum | G-SIB
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements [Line Items]
Capital adequacy ratio	1.00%
Minimum | Capital ratio that call for regulatory reporting
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements [Line Items]
Capital adequacy ratio	140.00%
Minimum | Capital ratio that lead to a temporary suspension of all or part of the business operations and cancellation of the license to act as a securities broker and dealer
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements [Line Items]
Capital adequacy ratio	100.00%
Maximum
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements [Line Items]
Buffer ranging percentage	2.50%
Maximum | G-SIB
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements [Line Items]
Capital adequacy ratio	2.50%
Basel III
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements [Line Items]
Tier 1 capital ratio	6.00%
Common Equity Tier 1	4.50%
Basel III | Minimum
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements [Line Items]
Capital adequacy ratio	8.00%
March 2013
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements [Line Items]
Common Equity Tier 1	3.50%
March 2013 | Basel III
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements [Line Items]
Tier 1 capital ratio	4.50%
Common Equity Tier 1	3.50%
March 2014 | Basel III
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements [Line Items]
Tier 1 capital ratio	5.50%
Common Equity Tier 1	4.00%
March 2015
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements [Line Items]
Common Equity Tier 1	4.50%
March 2016
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements [Line Items]
Capital conservation buffer	0.625%
March 2019
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements [Line Items]
Common Equity Tier 1 capital requirement, including capital conservation buffer	7.00%

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Components of Net Deferred Tax Assets (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Deferred tax assets:
Investments	¥ 724,038	¥ 889,305
Allowance for loan losses	266,595	337,453
Derivative financial instruments	29,002
Trading account assets	19,842
Net operating loss carryforwards	448,926	450,016
Other	204,304	264,661
Deferred Tax Assets, Gross, Total	1,692,707	1,941,435
Valuation allowance	(443,847)	(584,665)
Deferred tax assets, net of valuation allowance	1,248,860	1,356,770
Deferred tax liabilities:
Available-for-sale securities	659,448	567,608
Prepaid pension cost and accrued pension liabilities	132,738	39,937
Undistributed earnings of subsidiaries	11,972	11,040
Premises and equipment	11,263	12,304
Derivative financial instruments		35,391
Trading account assets		11,101
Other	61,500	51,913
Deferred tax liabilities	876,921	729,294
Net deferred tax assets	¥ 371,939	¥ 627,476

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Details of Fees and Commissions Income (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Principal Transaction Revenue [Line Items]
Securities-related business	¥ 170,311	¥ 132,787	¥ 116,567
Deposits, debentures and lending business	114,073	113,989	97,509
Remittance business	108,534	104,574	105,015
Trust fees	48,914	45,621	45,990
Fees for other customer services	233,931	215,837	210,332
Total	¥ 675,763	¥ 612,808	¥ 575,413

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Fair Value of Plan Assets by Asset Category (Parenthetical) (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Equity securities held in the employee retirement benefit trusts	¥ 1,706,054		¥ 1,527,744		¥ 1,323,163
Equity securities | Common stocks | Japan
Defined Benefit Plan Disclosure [Line Items]
Equity securities held in the employee retirement benefit trusts	782,000	[1]	716,000	[1]
Equity securities | Trust for Benefit of Employees | Common stocks | Japan
Defined Benefit Plan Disclosure [Line Items]
Equity securities held in the employee retirement benefit trusts	¥ 782,000		¥ 681,000

[1] This class includes equity securities held in the employee retirement benefit trusts of ¥681 billion and ¥782 billion at March 31, 2013 and 2014, respectively, which are well-diversified across industries.

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Dividends on Preferred Stock and Common Stock (Detail) (JPY ¥) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2012
Japan Gaap Dividends Payable [Line Items]
Cash dividends In aggregate	¥ 152,265	[1]	¥ 152,722	[1]	¥ 216,508	[1],[2]
Eleventh series class XI preferred stock
Japan Gaap Dividends Payable [Line Items]
Cash dividends Per share	¥ 20		¥ 20		¥ 30	[2]
Cash dividends In aggregate	6,717	[1]	7,451	[1]	12,173	[1],[2]
Thirteenth series class XIII preferred stock
Japan Gaap Dividends Payable [Line Items]
Cash dividends Per share	¥ 15	[3]	¥ 30		¥ 45	[2]
Cash dividends In aggregate	550	[1],[3]	1,101	[1]	1,651	[1],[2]
Common stock
Japan Gaap Dividends Payable [Line Items]
Cash dividends Per share	¥ 6		¥ 6		¥ 9	[2]
Cash dividends In aggregate	¥ 144,998	[1]	¥ 144,170	[1]	¥ 202,684	[1],[2]

[1] Dividends paid on treasury stock are excluded.

[2] As MHFG commenced distributing an interim dividend from the fiscal year ended March 31, 2012, the amounts for the fiscal year include such interim dividends.

[3] On July 11, 2013, MHFG acquired and cancelled all of the shares of the thirteenth series class XIII preferred stock. Consequently, the amount for the fiscal year does not include interim dividends.

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Document and Entity Information	12 Months Ended
	Mar. 31, 2014
Document Type	20-F
Amendment Flag	false
Document Period End Date	Mar. 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Trading Symbol	MFG
Entity Registrant Name	MIZUHO FINANCIAL GROUP INC
Entity Central Index Key	0001335730
Current Fiscal Year End Date	--03-31
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding	24,263,885,187

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Capital Adequacy Ratios of Former MHCB and Former MHBK (Detail) (JPY ¥)	Mar. 31, 2014	Mar. 31, 2013 Mizuho Corporate Bank Limited Former Subsidiary Consolidated		Mar. 31, 2013 Mizuho Corporate Bank Limited Former Subsidiary Non-consolidated		Mar. 31, 2014 Mizuho Bank Limited Consolidated		Mar. 31, 2014 Mizuho Bank Limited Non-consolidated		Mar. 31, 2013 Mizuho Bank Limited Former Subsidiary Consolidated		Mar. 31, 2013 Mizuho Bank Limited Former Subsidiary Non-consolidated
Common Equity Tier 1 capital:
Required		¥ 1,292,000,000,000	[1]	¥ 1,143,000,000,000	[1]	¥ 2,130,000,000,000	[2]	¥ 2,072,000,000,000	[2]	¥ 810,000,000,000	[3],[4]	¥ 793,000,000,000	[3],[4]
Actual		3,195,000,000,000	[1]	2,993,000,000,000	[1]	5,387,000,000,000	[2]	5,260,000,000,000	[2]	2,061,000,000,000	[3],[4]	2,009,000,000,000	[3],[4]
Tier 1 capital:
Required		1,661,000,000,000	[1]	1,470,000,000,000	[1]	2,928,000,000,000	[2]	2,849,000,000,000	[2]	1,041,000,000,000	[3],[4]	1,020,000,000,000	[3],[4]
Actual		4,071,000,000,000	[1]	3,980,000,000,000	[1]	6,525,000,000,000	[2]	6,370,000,000,000	[2]	2,344,000,000,000	[3],[4]	2,252,000,000,000	[3],[4]
Total risk-based capital:
Required		2,953,000,000,000	[1]	2,613,000,000,000	[1]	4,259,000,000,000	[2]	4,144,000,000,000	[2]	1,850,000,000,000	[3],[4]	1,813,000,000,000	[3],[4]
Actual	¥ 2,254,973,000,000	¥ 5,130,000,000,000	[1]	¥ 5,008,000,000,000	[1]	¥ 8,180,000,000,000	[2]	¥ 8,072,000,000,000	[2]	¥ 3,259,000,000,000	[3],[4]	¥ 3,163,000,000,000	[3],[4]
Common Equity Tier 1 capital:
Required	4.50%	3.50%	[1]	3.50%	[1]	4.00%	[2]	4.00%	[2]	3.50%	[3],[4]	3.50%	[3],[4]
Actual		8.65%	[1]	9.16%	[1]	10.11%	[2]	10.15%	[2]	8.90%	[3],[4]	8.86%	[3],[4]
Tier 1 capital:
Required		4.50%	[1]	4.50%	[1]	5.50%	[2]	5.50%	[2]	4.50%	[3],[4]	4.50%	[3],[4]
Actual		11.03%	[1]	12.18%	[1]	12.25%	[2]	12.29%	[2]	10.13%	[3],[4]	9.93%	[3],[4]
Total risk-based capital:
Required	120.00%	8.00%	[1]	8.00%	[1]	8.00%	[2]	8.00%	[2]	8.00%	[3],[4]	8.00%	[3],[4]
Actual		13.89%	[1]	15.33%	[1]	15.36%	[2]	15.58%	[2]	14.08%	[3],[4]	13.95%	[3],[4]

[1] The distribution of all of the shares of MHSC to MHFG as a dividend in kind (¥424.4 billion) on April 1, 2013 was deducted from Common Equity Tier 1 capital.

[2] The former MHBK and the former MHCB merged on July 1, 2013 and the former MHCB, the surviving company, changed its trade name to MHBK.

[3] The amounts and ratios were calculated in accordance with Basel III and are included for reference purpose only because the former MHBK was subject to Basel II requirements as of March 31, 2013 as a financial institution without overseas operations to which only domestic capital adequacy requirements applied.

[4] The distribution of all of the shares of MHSC to MHFG as a dividend in kind (¥125.7 billion) on April 1, 2013 was deducted from Common Equity Tier 1 capital.

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Short-term borrowings and long-term debt

12 Months Ended

Mar. 31, 2014

Short-term borrowings and long-term debt

11. Short-term borrowings and long-term debt

Short-term borrowings

Short-term borrowings consist of Due to trust accounts, Call money and funds purchased, Payables under repurchase agreements and securities lending transactions, and Other short-term borrowings.

Details of Other short-term borrowings at March 31, 2013 and 2014 are as follows:

	2013		2014
	(in millions of yen)
Commercial paper and short-term notes issued by consolidated VIEs of asset-backed commercial paper programs (1) (2)		252,277		286,968
Short-term notes issued by MHFG and its subsidiaries (1)		477,400		497,100
Borrowings from the Bank of Japan		5,884,304		5,138,003
Other		110,119		101,901
Total		6,724,100		6,023,972

Notes:

(1) Short-term notes are issued under laws of Japan in the form of dematerialized commercial paper, whose characteristics are economically the same as commercial paper.

(2) Commercial paper and short-term notes issued by consolidated VIEs of asset-backed commercial paper programs in the above table consist of commercial paper and short-term notes, of which amounts were ¥164,194 million and ¥88,083 million, respectively, at March 31, 2013, and ¥199,500 million and ¥87,468 million, respectively, at March 31, 2014.

Long-term debt

Long-term debt with original maturities of more than one year at March 31, 2013 and 2014 is comprised of the following:

	2013		2014
	(in millions of yen)
Obligations under capital leases		24,406		26,680
Loan participation borrowings		62,332		79,014
Senior borrowings and bonds		4,784,010		5,805,634
Subordinated borrowings and bonds		3,931,475		3,942,613
Total		8,802,223		9,853,941

The following table presents the interest rates and maturities of senior borrowings and bonds, and subordinated borrowings and bonds:

	Interest rates (1)		Maturities (2)		2013		2014
	(%)				(in millions of yen)
Senior borrowings and bonds:
fixed rate denominated in Japanese yen		0.00-10.00		Apr. 2014-Mar. 2044		2,741,475		3,557,508
fixed rate denominated in U.S. dollars		0.00-7.49		Apr. 2014-Jul. 2043		520,714		604,281
fixed rate denominated in other currencies		0.02-5.40		Jan. 2015-Mar. 2029		683		25,687
floating rate denominated in Japanese yen		0.00-18.10		Apr. 2014-Mar. 2044		1,065,708		1,063,111
floating rate denominated in U.S. dollars		0.00-15.60		Apr. 2014-Mar. 2028		426,515		532,199
floating rate denominated in other currencies		0.05-0.58		Apr. 2014-Jan. 2015		28,915		22,848
Total						4,784,010		5,805,634
Subordinated borrowings and bonds:
fixed rate denominated in Japanese yen		1.09-4.74		Apr. 2014-Perpetual		3,393,092		3,249,999
fixed rate denominated in U.S. dollars		4.30-14.91		Apr. 2014-Perpetual		419,383		613,609
floating rate denominated in Japanese yen		0.98-2.61		Jun. 2019-Perpetual		119,000		79,005
Total						3,931,475		3,942,613
Total						8,715,485		9,748,247

Notes:

(1) The interest rates disclosed reflect the range of contractual rates in effect at March 31, 2014.

(2) Maturity information disclosed is the range of maturities at March 31, 2014.

(3) None of the long-term debt issuances above are convertible to common stock.

(4) Certain debt agreements permit the MHFG Group to redeem the related debt, in whole or in part, prior to maturity at the MHFG Group’s option on terms specified in the respective agreements.

The following is a summary of the contractual maturities of long-term debt subsequent to March 31, 2014:

	(in millions of yen)
Fiscal year ending March 31:
2015		1,222,317
2016		1,190,985
2017		1,776,546
2018		1,025,441
2019		483,888
2020 and thereafter		4,154,764
Total		9,853,941

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Condensed Statements of Income Parent Company Only (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2012
Income:
Total	¥ 2,505,600	[1]	¥ 2,862,800	[1]	¥ 2,527,200	[1]
Expenses:
Interest expense	401,565		412,851		415,959
Equity in undistributed net income of subsidiaries	27,975		(2,192)		10,807
Income tax expense	226,108		4,024		13,878
Net income attributable to MHFG shareholders	498,484		875,412		656,389
Parent Company
Income:
Dividends from subsidiaries and affiliated companies	285,130		233,056		7,955
Management fees from subsidiaries	31,146		28,835		29,747
Other income	33,894		34,668		12,643
Total	350,170		296,559		50,345
Expenses:
Operating expenses	22,592		21,075		21,260
Interest expense	14,608		15,870		16,383
Other expense	5,724		1,207		1,431
Total	42,924		38,152		39,074
Equity in undistributed net income of subsidiaries	191,865		617,565		645,308
Income before income tax expense	499,111		875,972		656,579
Income tax expense	627		560		190
Net income attributable to MHFG shareholders	¥ 498,484		¥ 875,412		¥ 656,389

[1] Total revenue is comprised of Interest and dividend income and Noninterest income.

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Future Minimum Lease Payments for Capitalized Leases and Rental Payments for Operating Leases (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014
Capitalized leases
2015	¥ 6,479
2016	5,929
2017	5,186
2018	4,547
2019	3,820
2020 and thereafter	2,068
Total minimum lease/rental payments	28,029
Amount representing interest	1,349
Present value of minimum lease payments	26,680
Operating leases
2015	48,233
2016	40,195
2017	35,584
2018	31,556
2019	29,237
2020 and thereafter	74,596
Total minimum lease/rental payments	¥ 259,401

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Composition of Other Investments (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Schedule of Cost-method Investments [Line Items]
Equity method investments	¥ 196,015	¥ 225,696
Investments held by consolidated investment companies	70,599	75,780
Other equity interests	526,075	536,659
Total	¥ 792,689	¥ 838,135

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Information of Offsetting of Financial Assets and Financial Liabilities (Detail) (JPY ¥) In Billions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Offsetting Financial Assets And Financial Liabilities [Line Items]
Derivative assets, Gross amounts recognized	¥ 9,880	[1]	¥ 13,019	[1]
Derivative assets, Gross amounts offset on the balance sheet		[1]		[1]
Derivative assets, Net amounts presented on the balance sheet	9,880	[1],[2]	13,019	[1],[2]
Derivative assets, Amounts not offset on the balance sheet, Financial instruments	8,702	[1],[3],[4]	11,289	[1],[3],[4]
Derivative assets, Amounts not offset on the balance sheet, Cash collateral	406	[1],[3]	446	[1],[3]
Derivative assets, Net amounts	772	[1]	1,284	[1]
Receivables under resale agreements, Gross amounts recognized	8,236	[1]	8,869	[1]
Receivables under resale agreements, Gross amounts offset on the balance sheet		[1]		[1]
Receivables under resale agreements, Net amounts presented on the balance sheet	8,236	[1],[2]	8,869	[1],[2]
Receivables under resale agreements, Amounts not offset on the balance sheet, Financial instruments	8,200	[1],[3],[4]	8,812	[1],[3],[4]
Receivables under resale agreements, Amounts not offset on the balance sheet, Cash collateral		[1],[3]		[1],[3]
Receivables under resale agreements, Net amounts	36	[1]	57	[1]
Receivables under securities borrowing transactions, Gross amounts recognized	4,990	[1]	5,544	[1]
Receivables under securities borrowing transactions, Gross amounts offset on the balance sheet		[1]		[1]
Receivables under securities borrowing transactions, Net amounts presented on the balance sheet	4,990	[1],[2]	5,544	[1],[2]
Receivables under securities borrowing transactions, Amounts not offset on the balance sheet, Financial instruments	4,978	[1],[3],[4]	5,534	[1],[3],[4]
Receivables under securities borrowing transactions, Amounts not offset on the balance sheet, Cash collateral		[1],[3]		[1],[3]
Receivables under securities borrowing transactions, Net amounts	12	[1]	10	[1]
Financial assets, Gross amounts recognized, Total	23,106	[1]	27,432	[1]
Financial assets, Gross amounts offset on the balance sheet, Total		[1]		[1]
Financial assets, Net amounts presented on the balance sheet, Total	23,106	[1],[2]	27,432	[1],[2]
Financial assets, Amounts not offset on the balance sheet, Financial instruments, Total	21,880	[1],[3],[4]	25,635	[1],[3],[4]
Financial assets, Amounts not offset on the balance sheet, Cash collateral, Total	406	[1],[3]	446	[1],[3]
Financial assets, Net amounts, Total	820	[1]	1,351	[1]
Derivative liabilities, Gross amounts recognized	9,648	[1]	12,712	[1]
Derivative liabilities, Gross amounts offset on the balance sheet		[1]		[1]
Derivative liabilities, Net amounts presented on the balance sheet	9,648	[1],[2]	12,712	[1],[2]
Derivative liabilities, Amounts not offset on the balance sheet, Financial instruments	8,621	[1],[3],[4]	11,234	[1],[3],[4]
Derivative liabilities, Amounts not offset on the balance sheet, Cash collateral	431	[1],[3]	653	[1],[3]
Derivative liabilities, Net amounts	596	[1]	825	[1]
Payables under repurchase agreements, Gross amounts recognized	16,690	[1]	17,397	[1]
Payables under repurchase agreements, Gross amounts offset on the balance sheet		[1]		[1]
Payables under repurchase agreements, Net amounts presented on the balance sheet	16,690	[1],[2]	17,397	[1],[2]
Payables under repurchase agreements, Amounts not offset on the balance sheet, Financial instruments	16,667	[1],[3],[4]	17,280	[1],[3],[4]
Payables under repurchase agreements, Amounts not offset on the balance sheet, Cash collateral		[1],[3]		[1],[3]
Payables under repurchase agreements, Net amounts	23	[1]	117	[1]
Payables under securities lending transactions, Gross amounts recognized	6,085	[1]	11,326	[1]
Payables under securities lending transactions, Gross amounts offset on the balance sheet		[1]		[1]
Payables under securities lending transactions, Net amounts presented on the balance sheet	6,085	[1],[2]	11,326	[1],[2]
Payables under securities lending transactions, Amounts not offset on the balance sheet, Financial instruments	6,082	[1],[3],[4]	11,320	[1],[3],[4]
Payables under securities lending transactions, Amounts not offset on the balance sheet, Cash collateral		[1],[3]		[1],[3]
Payables under securities lending transactions, Net amounts	3	[1]	6	[1]
Financial liabilities, Gross amounts recognized, Total	32,423	[1]	41,435	[1]
Financial liabilities, Gross amounts offset on the balance sheet, Total		[1]		[1]
Financial liabilities, Net amounts presented on the balance sheet, Total	32,423	[1],[2]	41,435	[1],[2]
Financial liabilities, Amounts not offset on the balance sheet, Financial instruments, Total	31,370	[1],[3],[4]	39,834	[1],[3],[4]
Financial liabilities, Amounts not offset on the balance sheet, Cash collateral, Total	431	[1],[3]	653	[1],[3]
Financial liabilities, Net amounts, Total	¥ 622	[1]	¥ 948	[1]

[1] Amounts relating to master netting arrangements or similar agreements where the Group does not have the legal right of set-off or where uncertainty exists as to the enforceability of these agreements are excluded. For derivatives, the table includes amounts relating to over-the-counter ("OTC") and OTC-cleared derivatives that are subject to enforceable master netting arrangements or similar agreements.

[2] Derivative assets and liabilities are recorded in Trading account assets and Trading account liabilities, respectively.

[3] Amounts do not exceed the net amounts presented on the balance sheet and do not include the effect of overcollateralization, where it exists.

[4] For derivatives, amounts include derivative assets or liabilities and securities collateral that are eligible for offsetting under enforceable master netting arrangements or similar agreements.

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Allowance For Loan Losses - Additional Information (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Increase (Decrease) in provision for loan losses	¥ (266,177)	¥ 162,991	¥ (23,691)

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Details of Redeemed Preferred Securities (Detail) (Subsequent Event, Mizuho Capital Investment, Limited) In Millions, unless otherwise specified	0 Months Ended
	Jun. 30, 2014 USD ($)	Jun. 30, 2014 JPY (¥)
Subsequent Event [Line Items]
Aggregate redemption amount	$ 850	¥ 139,500
Reason for the redemption	Arrival of optional redemption date	Arrival of optional redemption date

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CONSOLIDATED STATEMENTS OF INCOME (JPY ¥) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2012
Interest and dividend income:
Loans, including fees	¥ 982,402		¥ 947,983		¥ 936,574
Investments:
Interest	131,295		162,451		170,651
Dividends	72,052		63,329		71,579
Trading account assets	161,212		169,216		193,288
Call loans and funds sold	5,949		4,947		6,601
Receivables under resale agreements and securities borrowing transactions	36,281		57,220		39,684
Deposits	33,608		18,229		18,709
Total interest and dividend income	1,422,799		1,423,375		1,437,086
Interest expense:
Deposits	133,140		124,053		131,140
Debentures					385
Trading account liabilities	30,746		23,688		28,436
Call money and funds purchased	7,664		7,686		8,604
Payables under repurchase agreements and securities lending transactions	36,906		66,995		47,114
Other short-term borrowings	12,120		16,490		20,481
Long-term debt	180,989		173,939		179,799
Total interest expense	401,565		412,851		415,959
Net interest income	1,021,234		1,010,524		1,021,127
Provision (credit) for loan losses (Notes 4 and 5)	(126,230)		139,947		(23,044)
Net interest income after provision (credit) for loan losses	1,147,464		870,577		1,044,171
Noninterest income:
Fees and commissions (Note 26)	675,763		612,808		575,413
Foreign exchange gains (losses)-net (Note 27)	25,631	[1]	20,514	[1]	98,054	[1]
Trading account gains (losses)-net (Note 27)	(59,687)		534,100		333,315
Investment gains (losses)-net (Note 3)	265,531		121,159		(32,991)
Gains on disposal of premises and equipment	10,460		12,411		19,924
Other noninterest income (Note 22)	165,136		138,427		96,420
Total noninterest income	1,082,834		1,439,419		1,090,135
Noninterest expenses:
Salaries and employee benefits (Note 20)	586,737		572,301		587,332
General and administrative expenses	486,772		439,708		477,512
Impairment of goodwill (Note 7)	3,792				5,637
Occupancy expenses	172,566		171,697		174,788
Fees and commission expenses	122,419		109,018		107,898
Provision (credit) for losses on off-balance-sheet instruments (Note 23)	12,095		4,584		(1,203)
Other noninterest expenses (Notes 4 and 22)	119,574		127,508		119,507
Total noninterest expenses	1,503,955		1,424,816		1,471,471
Income before income tax expense	726,343		885,180		662,835
Income tax expense (Note 19)	226,108		4,024		13,878
Net income	500,235		881,156		648,957
Less: Net income (loss) attributable to noncontrolling interests	1,751		5,744		(7,432)
Net income attributable to MHFG shareholders	¥ 498,484		¥ 875,412		¥ 656,389
Earnings per common share (Note 18):
Basic net income per common share	¥ 20.33		¥ 36.05		¥ 28.07
Diluted net income per common share	¥ 19.64		¥ 34.47		¥ 26.78

[1] Amounts include realized and unrealized gains and losses on both derivative instruments and nonderivative instruments, such as translation gains and losses related to foreign currency-denominated available-for-sale securities for which the fair value option is elected in accordance with ASC 825.

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Allowance for loan losses

12 Months Ended

Mar. 31, 2014

Allowance for loan losses

5. Allowance for loan losses

In accordance with ASC 450, a formula-based allowance utilizing historical loss factors, after adjusted for existing economic conditions where appropriate, is applied to groups of non-homogeneous loans and small balance, homogeneous loans which have not been identified as impaired. In MHBK and MHTB, when management estimates probable credit losses to determine the allowance for loan losses, small balance, homogeneous loans are classified in the retail portfolio segment to which pool allocations apply, and loans other than these classified in the retail portfolio segment are classified in the corporate portfolio segment. The corporate portfolio segment consists of loans originated by MHBK and MHTB, and includes mainly business loans such as those used for working capital and capital expenditure, as well as loans for which the primary source of repayment of the obligation is income generated by the relevant assets such as project finance, asset finance and real estate finance. The retail portfolio segment consists mainly of residential mortgage loans, originated by MHBK. The other portfolio segment consists of loans of subsidiaries other than MHBK and MHTB, such as consolidated VIEs and overseas subsidiaries. See Note 1 “Basis of presentation and summary of significant accounting policies” for further detail of the methodology used to determine the allowance for loan losses and Note 4 “Loans” for further details of obligor ratings and pool allocations.

Changes in the Allowance for loan losses by portfolio segment for the fiscal years ended March 31, 2012, 2013 and 2014 are shown below:

	Corporate			Retail			Other		Total
	(in millions of yen)
2012
Balance at beginning of fiscal year		563,116			151,342			20,072		734,530
Provision (credit) for loan losses		(19,433	)		(21,375	)		17,764		(23,044	)
Charge-offs		54,599			5,133			20,410		80,142
Less: Recoveries		48,354			1,442			2,460		52,256
Net charge-offs		6,245			3,691			17,950		27,886
Others (Note)		(1,963	)		—			1,055		(908	)
Balance at end of fiscal year		535,475			126,276			20,941		682,692
2013
Balance at beginning of fiscal year		535,475			126,276			20,941		682,692
Provision (credit) for loan losses		137,549			(14,180	)		16,578		139,947
Charge-offs		69,845			4,249			20,503		94,597
Less: Recoveries		27,447			1,342			2,911		31,700
Net charge-offs		42,398			2,907			17,592		62,897
Others (Note)		11,269			—			1,946		13,215
Balance at end of fiscal year		641,895			109,189			21,873		772,957
2014
Balance at beginning of fiscal year		641,895			109,189			21,873		772,957
Provision (credit) for loan losses		(128,368	)		(12,712	)		14,850		(126,230	)
Charge-offs		47,927			3,935			13,286		65,148
Less: Recoveries		21,423			3,000			2,112		26,535
Net charge-offs		26,504			935			11,174		38,613
Others (Note)		14,326			—			3,737		18,063
Balance at end of fiscal year		501,349			95,542			29,286		626,177

Note: Others include primarily foreign exchange translation.

The table below presents the Allowance for loan losses and loans outstanding by portfolio segment disaggregated on the basis of impairment method at March 31, 2013 and 2014:

	Corporate		Retail		Other		Total
	(in millions of yen)
2013
Allowance for loan losses		641,895		109,189		21,873		772,957
of which individually evaluated for impairment		398,622		14,815		9,247		422,684
of which collectively evaluated for impairment		243,273		94,374		12,626		350,273
Loans (Note)		51,801,814		13,007,792		5,135,858		69,945,464
of which individually evaluated for impairment		1,160,489		45,961		59,974		1,266,424
of which collectively evaluated for impairment		50,641,325		12,961,831		5,075,884		68,679,040
2014
Allowance for loan losses		501,349		95,542		29,286		626,177
of which individually evaluated for impairment		327,011		11,735		10,562		349,308
of which collectively evaluated for impairment		174,338		83,807		18,724		276,869
Loans (Note)		54,651,867		12,922,564		6,049,109		73,623,540
of which individually evaluated for impairment		1,100,938		39,250		54,127		1,194,315
of which collectively evaluated for impairment		53,550,929		12,883,314		5,994,982		72,429,225

Note: Amounts represent loan balances before deducting unearned income and deferred loan fees.

In the fiscal year ended March 31, 2012, the Provision for loan losses decreased by ¥23,691 million from the previous fiscal year. The decrease was due primarily to upgrades in the obligor categories of a broad range of borrowers as a result of the effectiveness of the MHFG Group’s credit management activities which was enhanced against the backdrop of the improving domestic economic environment, reflecting the continuing gradual recovery of the Japanese economy.

In the fiscal year ended March 31, 2013, the Provision for loan losses increased by ¥162,991 million from the previous fiscal year. The increase was due primarily to an increase in allowance for loan losses as a result of an increase in foreign impaired loans that required an allowance for loan losses and increased estimated losses reflecting changes in the business environment surrounding some domestic obligors, offset in part by the effects of the continuing gradual recovery of the Japanese economy.

In the fiscal year ended March 31, 2014, the Provision for loan losses decreased by ¥266,177 million from the previous fiscal year. The decrease was due primarily to a decrease in allowance for loan losses on domestic impaired loans as a result of upgrades and collections related to some borrowers and non-impaired loans reflecting upgrades in the obligor categories of a broad range of borrowers mainly through our credit management activities, including business revitalization support for borrowers, reflecting the continuing gradual recovery of the Japanese economy.

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Loans

12 Months Ended

Mar. 31, 2014

Loans

4. Loans

The table below presents loans outstanding by domicile and industry of borrower at March 31, 2013 and 2014:

	2013		2014
	(in millions of yen)
Domestic:
Manufacturing		8,078,871		8,025,932
Construction and real estate		7,477,853		7,204,594
Services		3,972,011		3,956,742
Wholesale and retail		5,355,974		5,350,707
Transportation and communications		3,147,106		3,247,394
Banks and other financial institutions		3,142,998		3,460,147
Government and public institutions		6,907,426		6,734,451
Other industries (Note)		4,521,994		4,983,821
Individuals:
Mortgage loans		11,234,561		11,187,206
Other		741,519		787,313
Total domestic		54,580,313		54,938,307
Foreign:
Commercial and industrial		10,481,071		12,937,005
Banks and other financial institutions		4,088,651		4,610,141
Government and public institutions		595,911		883,004
Other (Note)		199,518		255,083
Total foreign		15,365,151		18,685,233
Total		69,945,464		73,623,540
Less: Unearned income and deferred loan fees—net		111,981		138,586
Total loans before allowance for loan losses		69,833,483		73,484,954

Note: Other industries of domestic and Other of foreign include trade receivables and lease receivables of consolidated VIEs.

Net losses on sales of loans were ¥4,576 million, ¥853 million and ¥2,041 million, of which valuation losses related to loans held for sale accounted for at the lower of cost or fair value were ¥3,435 million, ¥54 million and ¥1,510 million for the fiscal years ended March 31, 2012, 2013 and 2014, respectively.

Credit quality information

In accordance with the MHFG Group’s credit risk management policies, the Group uses an internal rating system that consists of credit ratings and pool allocations as the basis of its risk management infrastructure. Credit ratings consist of obligor ratings which represent the level of credit risk of the obligor, and transaction ratings which represent the ultimate possibility of incurring losses on individual loan by taking into consideration various factors such as collateral or guarantees involved. In principle, obligor ratings are applied to all obligors except those to which pool allocations are applied, and are subject to regular review at least once a year as well as special review which is required whenever the obligor’s credit standing changes. Pool allocations are applied to small balance loans. The Group pools loans with similar risk characteristics, and the risk is assessed and managed according to such pools. The Group generally reviews the appropriateness and effectiveness of the approach to obligor ratings and pool allocations once a year in accordance with predetermined procedures.

The table below presents the MHFG Group’s definition of obligor ratings used by MHBK and MHTB:

Obligor category	Obligor rating	Definition
Normal	A	Obligors whose certainty of debt fulfillment is very high, hence their level of credit risk is very low.
	B	Obligors whose certainty of debt fulfillment poses no problems for the foreseeable future, and their level of credit risk is low.
	C	Obligors whose certainty of debt fulfillment and their level of credit risk pose no problems for the foreseeable future.
	D	Obligors whose current certainty of debt fulfillment poses no problems, however, their resistance to future environmental changes is low.
Watch	E1	Obligors that require observation going forward because of either minor concerns regarding their financial position, or somewhat weak or unstable business conditions.
	E2	Obligors that require special observation going forward because of problems with their borrowings such as reduced or suspended interest payments, problems with debt fulfillment such as failure of principal or interest payments, or problems with their financial position as a result of their weak or unstable business condition.
Intensive control	F	Obligors that are not yet bankrupt but are in financial difficulties and are deemed likely to become bankrupt in the future because of insufficient progress in implementing their management improvement plans or other measures (including obligors that are receiving ongoing support from financial institutions).
Substantially bankrupt	G	Obligors that have not yet become legally or formally bankrupt but are substantially insolvent because they are in serious financial difficulties and are deemed to be incapable of being restructured.
Bankrupt	H	Obligors that have become legally or formally bankrupt.

The table below presents credit quality information of loans based on the MHFG Group’s internal rating system at March 31, 2013 and 2014:

	Normal obligors								Watch obligors excluding special attention obligors (1)						Impaired loans		Total
	A-B		C-D		Retail (2)		Other (3)		E1-E2		Retail (2)		Other (3)
	(in millions of yen)
2013
Domestic:
Manufacturing		4,171,212		2,615,406		119,183		307,946		498,638		22,569		8,013		335,904		8,078,871
Construction and real estate		2,524,644		3,486,850		659,844		148,893		387,254		20,671		664		249,033		7,477,853
Services		1,736,931		1,734,482		219,089		4,035		160,754		26,621		—		90,099		3,972,011
Wholesale and retail		1,853,573		2,699,053		261,322		83,065		236,545		49,710		11		172,695		5,355,974
Transportation and communications		2,236,404		685,237		94,233		350		59,573		12,274		—		59,035		3,147,106
Banks and other financial institutions		2,246,804		666,197		2,172		5,311		208,510		221		—		13,783		3,142,998
Government and public institutions		6,797,133		11,729		—		98,564		—		—		—		—		6,907,426
Other industries		1,620,061		743,214		3,341		2,058,974		13,044		448		77,548		5,364		4,521,994
Individuals		—		191,360		11,219,209		170,768		33,618		121,468		4,032		235,625		11,976,080
Total domestic		23,186,762		12,833,528		12,578,393		2,877,906		1,597,936		253,982		90,268		1,161,538		54,580,313
Foreign:
Total foreign		8,293,654		3,650,488		4,881		2,021,284		980,343		137		111,684		302,680		15,365,151
Total		31,480,416		16,484,016		12,583,274		4,899,190		2,578,279		254,119		201,952		1,464,218		69,945,464
2014
Domestic:
Manufacturing		4,248,490		2,467,326		109,258		310,703		636,348		21,117		3,820		228,870		8,025,932
Construction and real estate		2,890,563		3,066,852		623,385		161,177		303,746		20,577		381		137,913		7,204,594
Services		1,946,764		1,558,609		205,939		6,998		135,030		24,958		—		78,444		3,956,742
Wholesale and retail		2,029,723		2,632,048		249,304		63,116		178,520		42,086		10		155,900		5,350,707
Transportation and communications		2,388,541		658,680		88,911		1,348		50,667		11,159		—		48,088		3,247,394
Banks and other financial institutions		2,602,545		664,843		2,030		4,780		174,328		165		—		11,456		3,460,147
Government and public institutions		6,678,104		8,347		—		48,000		—		—		—		—		6,734,451
Other industries		1,907,714		754,137		3,383		2,240,879		7,804		401		68,642		861		4,983,821
Individuals		—		197,725		11,266,620		169,655		40,606		101,718		2,823		195,372		11,974,519
Total domestic		24,692,444		12,008,567		12,548,830		3,006,656		1,527,049		222,181		75,676		856,904		54,938,307
Foreign:
Total foreign		10,600,531		4,349,587		6,621		2,782,476		513,610		14		144,238		288,156		18,685,233
Total		35,292,975		16,358,154		12,555,451		5,789,132		2,040,659		222,195		219,914		1,145,060		73,623,540

Notes:

(1) Special attention obligors are watch obligors with debt in TDR or 90 days or more delinquent debt. Loans to such obligors are considered impaired.

(2) Amounts represent small balance, homogeneous loans which are subject to pool allocations.

(3) The former MHBK and the former Mizuho Corporate Bank, Ltd. (“MHCB”) merged on July 1, 2013 and the former MHCB, the surviving company, changed its trade name to MHBK. As of March 31, 2013, non-impaired loans held by subsidiaries other than the former MHBK, the former MHCB and MHTB constitute Other, since their portfolio segments are not identical to those used by the former MHBK, the former MHCB and MHTB. As of March 31, 2014, non-impaired loans held by subsidiaries other than MHBK and MHTB constitute Other, since their portfolio segments are not identical to those used by MHBK and MHTB.

Impaired loans

The MHFG Group considers loans to be impaired when it is probable that the Group will be unable to collect all the scheduled payments of principal and interest when due according to the contractual terms of the loan. The Group classifies loans to special attention, intensive control, substantially bankrupt and bankrupt obligors as impaired loans, and all of the Group’s impaired loans are designated as nonaccrual loans. The Group does not have any loans to borrowers that cause management to have serious doubts as to the ability of such borrowers to comply with the present loan repayment terms for the periods presented other than those already designated as impaired loans. The table below presents impaired loans information at March 31, 2013 and 2014.

	Recorded investment (1)						Unpaid principal balance		Related allowance (3)		Average recorded investment		Interest income recognized (4)
	Requiring an allowance for loan losses		Not requiring an allowance for loan losses (2)		Total
	(in millions of yen)
2013
Domestic:
Manufacturing		325,727		10,177		335,904		365,049		118,475		299,978		5,297
Construction and real estate		189,060		59,973		249,033		269,770		46,574		227,920		2,824
Services		77,982		12,117		90,099		106,397		22,153		103,113		1,949
Wholesale and retail		160,477		12,218		172,695		189,231		62,962		186,594		3,076
Transportation and communications		55,202		3,833		59,035		61,554		18,870		54,633		1,220
Banks and other financial institutions		13,727		56		13,783		13,821		5,007		11,950		227
Other industries		5,224		140		5,364		5,484		3,818		4,791		73
Individuals		116,875		118,750		235,625		252,182		9,429		250,718		4,343
Total domestic		944,274		217,264		1,161,538		1,263,488		287,288		1,139,697		19,009
Foreign:
Total foreign		297,859		4,821		302,680		305,801		119,053		220,561		5,321
Total		1,242,133		222,085		1,464,218		1,569,289		406,341		1,360,258		24,330
2014
Domestic:
Manufacturing		216,579		12,291		228,870		240,660		74,367		259,889		4,086
Construction and real estate		107,932		29,981		137,913		163,813		30,724		183,437		2,213
Services		66,651		11,793		78,444		88,537		20,199		83,754		1,671
Wholesale and retail		142,886		13,014		155,900		172,641		51,274		161,288		2,795
Transportation and communications		44,237		3,851		48,088		54,149		14,691		50,387		939
Banks and other financial institutions		11,390		66		11,456		11,480		4,049		12,474		163
Other industries		781		80		861		2,020		108		3,486		19
Individuals		91,715		103,657		195,372		206,341		9,391		215,422		3,714
Total domestic		682,171		174,733		856,904		939,641		204,803		970,137		15,600
Foreign:
Total foreign		276,292		11,864		288,156		290,161		118,360		291,981		4,750
Total		958,463		186,597		1,145,060		1,229,802		323,163		1,262,118		20,350

Notes:

(1) Amounts represent the outstanding balances of nonaccrual loans. The MHFG Group’s policy for placing loans in nonaccrual status completely corresponds to the Group’s definition of impaired loans.

(2) These impaired loans do not require an allowance for loan losses because the MHFG Group has sufficient collateral to cover probable loan losses.

(3) The allowance for loan losses on impaired loans includes those for groups of small balance, homogeneous loans totaling ¥504,750 million and ¥425,391 million as of March 31, 2013 and 2014 which were collectively evaluated for impairment, in addition to those that were individually evaluated for impairment.

(4) Amounts represent gross interest income on impaired loans which were included in Interest income on loans in the consolidated statements of income.

The remaining balance of impaired loans which had been partially charged off were ¥51,720 million and ¥24,957 million as of March 31, 2013 and 2014, respectively.

Troubled debt restructurings

The MHFG Group considers restructurings, with respect to which concessions that it would not otherwise consider were granted to obligors in financial difficulty, as TDRs. The Group considers the relevant obligor to be in financial difficulty when its obligor rating is E2 or below. The following table presents TDRs that were made during the fiscal years ended March 31, 2013 and 2014.

	Loan forgiveness or debt to equity swaps				Interest rate reduction and/or Postponement of principal and/or interest
	Recorded investment (1)		Charge-offs (2)
			(in millions of yen)
2013
Domestic:
Manufacturing		—		—		277,957
Construction and real estate		—		—		129,908
Services		—		—		68,930
Wholesale and retail		—		1,243		218,497
Transportation and communications		—		—		52,206
Banks and other financial institutions		—		—		34,468
Other industries		—		—		1,809
Individuals		—		—		62,160
Total domestic		—		1,243		845,935
Foreign:
Total foreign		1,062		3,750		140,064
Total		1,062		4,993		985,999
2014
Domestic:
Manufacturing		235		481		196,705
Construction and real estate		2,528		136		44,573
Services		310		555		57,945
Wholesale and retail		5		149		170,217
Transportation and communications		—		—		34,598
Banks and other financial institutions		—		—		31,901
Other industries		—		—		1,998
Individuals		—		—		47,822
Total domestic		3,078		1,321		585,759
Foreign:
Total foreign		—		—		60,348
Total		3,078		1,321		646,107

Notes:

(1) Amounts represent the book values of loans immediately after the restructurings.

(2) Charge-offs represent the loss impact on the consolidated statements of income for the fiscal year that resulted from the restructurings.

Payment default is deemed to occur when the loan becomes three months past due or the obligor is downgraded to the category of substantially bankrupt or bankrupt. The following table presents payment defaults which occurred during the fiscal years ended March 31, 2013 and 2014 with respect to the loans modified as TDRs within the previous twelve months.

	Recorded investment
	2013		2014
	(in millions of yen)
Domestic:
Manufacturing		18,740		21,144
Construction and real estate		18,751		3,500
Services		5,976		3,707
Wholesale and retail		19,920		21,916
Transportation and communications		4,386		14,069
Banks and other financial institutions		—		—
Other industries		—		107
Individuals		5,517		6,283
Total domestic		73,290		70,726
Foreign:
Total foreign		6,374		115
Total		79,664		70,841

Age analysis of past due loans

The table below presents an analysis of the age of the recorded investment in loans that are past due at March 31, 2013 and 2014:

	30-59 days past due		60-89 days past due		90 days or more past due		Total past due		Current		Total
	(in millions of yen)
2013
Domestic:
Manufacturing		3,788		1,911		32,830		38,529		8,040,342		8,078,871
Construction and real estate		11,815		4,038		69,333		85,186		7,392,667		7,477,853
Services		3,385		1,916		13,829		19,130		3,952,881		3,972,011
Wholesale and retail		2,771		2,851		16,483		22,105		5,333,869		5,355,974
Transportation and communications		711		558		3,687		4,956		3,142,150		3,147,106
Banks and other financial institutions		—		—		6		6		3,142,992		3,142,998
Government and public institutions		—		—		—		—		6,907,426		6,907,426
Other industries		—		18		122		140		4,521,854		4,521,994
Individuals		41,987		24,114		69,774		135,875		11,840,205		11,976,080
Total domestic		64,457		35,406		206,064		305,927		54,274,386		54,580,313
Foreign:
Total foreign		127		885		11,132		12,144		15,353,007		15,365,151
Total		64,584		36,291		217,196		318,071		69,627,393		69,945,464
2014
Domestic:
Manufacturing		2,834		2,193		14,452		19,479		8,006,453		8,025,932
Construction and real estate		5,412		3,440		44,852		53,704		7,150,890		7,204,594
Services		2,185		1,235		10,304		13,724		3,943,018		3,956,742
Wholesale and retail		3,205		4,561		12,180		19,946		5,330,761		5,350,707
Transportation and communications		832		573		3,265		4,670		3,242,724		3,247,394
Banks and other financial institutions		—		1		5		6		3,460,141		3,460,147
Government and public institutions		—		—		—		—		6,734,451		6,734,451
Other industries		9		29		34		72		4,983,749		4,983,821
Individuals		38,466		18,488		56,605		113,559		11,860,960		11,974,519
Total domestic		52,943		30,520		141,697		225,160		54,713,147		54,938,307
Foreign:
Total foreign		87		23		10,935		11,045		18,674,188		18,685,233
Total		53,030		30,543		152,632		236,205		73,387,335		73,623,540

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Target Allocation for Plan Assets Excluding those of Employee Retirement Benefit Trusts (Detail)	12 Months Ended
	Mar. 31, 2014
Asset category
Plan assets	100.00%
General Account Assets
Asset category
Plan assets	14.00%	[1]
Other assets
Asset category
Plan assets	1.00%
Japan | Equity securities
Asset category
Plan assets	5.00%
Japan | Debt securities
Asset category
Plan assets	44.00%
Foreign | Equity securities
Asset category
Plan assets	26.00%
Foreign | Debt securities
Asset category
Plan assets	10.00%

[1] General account of life insurance companies is a contract with life insurance companies which guarantees payments of principal and predetermined interest rate.

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Accumulated other comprehensive income (loss)

12 Months Ended

Mar. 31, 2014

Accumulated other comprehensive income (loss)

16. Accumulated other comprehensive income (loss)

Changes in each component of AOCI for the fiscal years ended March 31, 2012, 2013 and 2014 are as follows:

	2012			2013			2014
	(in millions of yen)
AOCI, balance at beginning of fiscal year		104,972			245,588			777,997
Unrealized net gains (losses) on available-for-sale securities:
Balance at beginning of fiscal year		514,128			628,636			995,124
Unrealized holding gains (losses) during year		87,215			427,913			255,140
Less: reclassification adjustments for losses (gains) included in net income		27,293			(61,425	)		(126,992	)
Change during year		114,508			366,488			128,148
Balance at end of fiscal year		628,636			995,124			1,123,272
Foreign currency translation adjustments:
Balance at beginning of fiscal year		(165,028	)		(169,881	)		(82,420	)
Foreign currency translation adjustments during year		(6,779	)		87,460			75,986
Less: reclassification adjustments for losses (gains) included in net income		1,926			1			—
Change during year		(4,853	)		87,461			75,986
Balance at end of fiscal year		(169,881	)		(82,420	)		(6,434	)
Pension liability adjustments:
Balance at beginning of fiscal year		(244,128	)		(213,167	)		(134,707	)
Unrealized gains (losses) during year		14,711			67,795			131,360
Less: reclassification adjustments for losses (gains) included in net income		16,250			10,665			4,386
Change during year		30,961			78,460			135,746
Balance at end of fiscal year		(213,167	)		(134,707	)		1,039
Total other comprehensive income (loss), net of tax attributable to MHFG shareholders		140,616			532,409			339,880
AOCI, balance at end of fiscal year		245,588			777,997			1,117,877

The following table shows the amounts reclassified out of AOCI into net income during the fiscal year ended March 31, 2014.

	Before tax (1)			Tax effect (2)			Net of tax before allocation to noncontrolling interests			Net of tax attributable to noncontrolling interests (2)			Net of tax attributable to MHFG shareholders
	(in millions of yen)
Amounts reclassified out of AOCI into net income:																Affected line items in the consolidated statements of income:
Unrealized net gains (losses) on available-for-sale securities		197,224			(70,228	)		126,996			4			126,992		Investment gains (losses)—net
Foreign currency translation adjustments		—			—			—			—			—
Pension liability adjustments		(6,877	)		2,442			(4,435	)		(49	)		(4,386	)	Salaries and employee benefits
Total		190,347			(67,786	)		122,561			(45	)		122,606

Notes:

(1) The amounts in the Before tax column are recorded in each account presented as “Affected line items in the consolidated statements of income”.

(2) The amounts in the Tax effect column and Net of tax attributable to noncontrolling interests column are recorded in Income tax expense and Net income attributable to noncontrolling interests in the consolidated statements of income respectively.

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Other assets and liabilities

12 Months Ended

Mar. 31, 2014

Other assets and liabilities

12. Other assets and liabilities

The following table sets forth the details of other assets and liabilities at March 31, 2013 and 2014:

	2013		2014
	(in millions of yen)
Other assets:
Accounts receivable from brokers, dealers and customers for securities transactions		907,671		1,122,247
Collateral provided for derivative transactions		742,307		466,420
Prepaid pension cost		153,414		403,654
Miscellaneous receivables		120,322		315,037
Margins provided for futures contracts		99,844		147,376
Security deposits		102,031		121,675
Loans held for sale		9,820		58,745
Other		466,542		563,841
Total		2,601,951		3,198,995
Other liabilities:
Accounts payable to brokers, dealers and customers for securities transactions		1,560,345		1,325,455
Guaranteed trust principal		535,720		591,647
Miscellaneous payables		260,665		473,028
Collateral accepted for derivative transactions		503,101		432,820
Factoring amounts owed to customers		375,933		382,189
Margins accepted for futures contracts		199,930		289,381
Unearned income		141,189		141,735
Other		791,243		785,768
Total		4,368,126		4,422,023

Unearned income

Unearned income is primarily comprised of refundable fees received from consumer loan customers at the time the loan was made, which is being deferred and recognized in earnings as earned.

Guaranteed trust principal

Guaranteed trust principal is the liability of certain consolidated trust arrangements, which the MHFG Group provides guarantees for the repayment of principal. See Note 25 “Variable interest entities and securitizations” for further discussion of the guaranteed principal money trust.

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Impaired Loans (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment requiring an allowance for loan losses	¥ 958,463	[1]	¥ 1,242,133	[1]
Recorded investment not requiring an allowance for loan losses	186,597	[1],[2]	222,085	[1],[2]
Total	1,145,060	[1]	1,464,218	[1]
Unpaid principal balance	1,229,802		1,569,289
Related allowance	323,163	[3]	406,341	[3]
Average recorded investment	1,262,118		1,360,258
Interest income recognized	20,350	[4]	24,330	[4]
Domestic Country
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment requiring an allowance for loan losses	682,171	[1]	944,274	[1]
Recorded investment not requiring an allowance for loan losses	174,733	[1],[2]	217,264	[1],[2]
Total	856,904	[1]	1,161,538	[1]
Unpaid principal balance	939,641		1,263,488
Related allowance	204,803	[3]	287,288	[3]
Average recorded investment	970,137		1,139,697
Interest income recognized	15,600	[4]	19,009	[4]
Domestic Country | Manufacturing
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment requiring an allowance for loan losses	216,579	[1]	325,727	[1]
Recorded investment not requiring an allowance for loan losses	12,291	[1],[2]	10,177	[1],[2]
Total	228,870	[1]	335,904	[1]
Unpaid principal balance	240,660		365,049
Related allowance	74,367	[3]	118,475	[3]
Average recorded investment	259,889		299,978
Interest income recognized	4,086	[4]	5,297	[4]
Domestic Country | Construction and real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment requiring an allowance for loan losses	107,932	[1]	189,060	[1]
Recorded investment not requiring an allowance for loan losses	29,981	[1],[2]	59,973	[1],[2]
Total	137,913	[1]	249,033	[1]
Unpaid principal balance	163,813		269,770
Related allowance	30,724	[3]	46,574	[3]
Average recorded investment	183,437		227,920
Interest income recognized	2,213	[4]	2,824	[4]
Domestic Country | Services
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment requiring an allowance for loan losses	66,651	[1]	77,982	[1]
Recorded investment not requiring an allowance for loan losses	11,793	[1],[2]	12,117	[1],[2]
Total	78,444	[1]	90,099	[1]
Unpaid principal balance	88,537		106,397
Related allowance	20,199	[3]	22,153	[3]
Average recorded investment	83,754		103,113
Interest income recognized	1,671	[4]	1,949	[4]
Domestic Country | Wholesale and retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment requiring an allowance for loan losses	142,886	[1]	160,477	[1]
Recorded investment not requiring an allowance for loan losses	13,014	[1],[2]	12,218	[1],[2]
Total	155,900	[1]	172,695	[1]
Unpaid principal balance	172,641		189,231
Related allowance	51,274	[3]	62,962	[3]
Average recorded investment	161,288		186,594
Interest income recognized	2,795	[4]	3,076	[4]
Domestic Country | Transportation and communications
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment requiring an allowance for loan losses	44,237	[1]	55,202	[1]
Recorded investment not requiring an allowance for loan losses	3,851	[1],[2]	3,833	[1],[2]
Total	48,088	[1]	59,035	[1]
Unpaid principal balance	54,149		61,554
Related allowance	14,691	[3]	18,870	[3]
Average recorded investment	50,387		54,633
Interest income recognized	939	[4]	1,220	[4]
Domestic Country | Banks and other financial institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment requiring an allowance for loan losses	11,390	[1]	13,727	[1]
Recorded investment not requiring an allowance for loan losses	66	[1],[2]	56	[1],[2]
Total	11,456	[1]	13,783	[1]
Unpaid principal balance	11,480		13,821
Related allowance	4,049	[3]	5,007	[3]
Average recorded investment	12,474		11,950
Interest income recognized	163	[4]	227	[4]
Domestic Country | Other industries
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment requiring an allowance for loan losses	781	[1]	5,224	[1]
Recorded investment not requiring an allowance for loan losses	80	[1],[2]	140	[1],[2]
Total	861	[1]	5,364	[1]
Unpaid principal balance	2,020		5,484
Related allowance	108	[3]	3,818	[3]
Average recorded investment	3,486		4,791
Interest income recognized	19	[4]	73	[4]
Domestic Country | Individuals
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment requiring an allowance for loan losses	91,715	[1]	116,875	[1]
Recorded investment not requiring an allowance for loan losses	103,657	[1],[2]	118,750	[1],[2]
Total	195,372	[1]	235,625	[1]
Unpaid principal balance	206,341		252,182
Related allowance	9,391	[3]	9,429	[3]
Average recorded investment	215,422		250,718
Interest income recognized	3,714	[4]	4,343	[4]
Foreign
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment requiring an allowance for loan losses	276,292	[1]	297,859	[1]
Recorded investment not requiring an allowance for loan losses	11,864	[1],[2]	4,821	[1],[2]
Total	288,156	[1]	302,680	[1]
Unpaid principal balance	290,161		305,801
Related allowance	118,360	[3]	119,053	[3]
Average recorded investment	291,981		220,561
Interest income recognized	¥ 4,750	[4]	¥ 5,321	[4]

[1] Amounts represent the outstanding balances of nonaccrual loans. The MHFG Group's policy for placing loans in nonaccrual status completely corresponds to the Group's definition of impaired loans.

[2] These impaired loans do not require an allowance for loan losses because the MHFG Group has sufficient collateral to cover probable loan losses.

[3] The allowance for loan losses on impaired loans includes those for groups of small balance, homogeneous loans totaling ¥504,750 million and ¥425,391 million as of March 31, 2013 and 2014 which were collectively evaluated for impairment, in addition to those that were individually evaluated for impairment.

[4] Amounts represent gross interest income on impaired loans which were included in Interest income on loans in the consolidated statements of income.

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Pledged assets and collateral

12 Months Ended

Mar. 31, 2014

Pledged assets and collateral

8. Pledged assets and collateral

The following amounts, by balance sheet classification, have been pledged as collateral for borrowings and for other purposes at March 31, 2013 and 2014:

	2013		2014
	(in billions of yen)
Interest-bearing deposits in other banks		28		38
Trading account assets		13,752		10,271
Available-for-sale securities		15,939		13,353
Loans		8,860		8,796
Other assets		900		677
Total		39,479		33,135

The associated liabilities collateralized by the above assets at March 31, 2013 and 2014 are summarized below:

	2013		2014
	(in billions of yen)
Deposits		259		878
Call money and funds purchased		1,580		1,708
Payables under repurchase agreements		7,726		6,884
Payables under securities lending transactions		11,092		6,237
Other short-term borrowings		5,626		405
Long-term debt		321		5,632
Total		26,604		21,744

The Bank of Japan (“the BOJ”) requires private depository institutions to maintain a certain amount of funds as reserves in current accounts with the BOJ, based on average deposit balances and certain other factors. There are similar reserve deposit requirements for foreign branches and subsidiaries engaged in banking businesses in foreign countries. At March 31, 2013 and 2014, the deposit amounts maintained with the BOJ and foreign central banks, which were included in Cash and due from banks and Interest-bearing deposits in other banks, were ¥10,507 billion and ¥18,084 billion, respectively. Those balances included the reserve funds required to be maintained by the MHFG Group, which amounted to ¥1,099 billion and ¥1,184 billion at March 31, 2013 and 2014, respectively.

At March 31, 2013 and 2014, the MHFG Group had received collateral that can be sold or repledged, with a fair value of ¥15,501 billion and ¥13,817 billion, respectively, of which ¥13,834 billion and ¥12,508 billion, respectively, were sold or repledged. Such collateral was primarily obtained under resale or securities borrowing agreements, and was used generally as collateral under repurchase or securities lending agreements, or to cover short sales.

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Assumptions to Estimate Fair Value of Stock Acquisition Rights on Date of Grant Used in Black-Scholes Option Pricing Model (Detail) (Mizuho Financial Group Inc, Mizuho Bank Limited and Mizuho Corporate Bank Limited)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Mizuho Financial Group Inc, Mizuho Bank Limited and Mizuho Corporate Bank Limited
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	0.08%	0.10%
Expected volatility	28.16%	29.30%
Expected remaining term (in years)	2 years 5 months 16 days	2 years 5 months 1 day
Expected dividend yield	3.11%	4.69%

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Stock-based compensation (Tables) (Mizuho Financial Group Inc, Mizuho Bank Limited and Mizuho Corporate Bank Limited)

12 Months Ended

Mar. 31, 2014

Mizuho Financial Group Inc, Mizuho Bank Limited and Mizuho Corporate Bank Limited

Schedule of Share-based Compensation, Stock Options, Activity

The following is a roll-forward of MHFG Stock Plan for the fiscal year ended March 31, 2014:

	Number of shares		Weighted-average exercise price		Weighted-average remaining contractual term		Aggregate intrinsic value
			(in yen)		(in years)		(in millions of yen)
Outstanding at beginning of fiscal year		23,863,000		1
Granted during fiscal year		7,932,000		1
Exercised during fiscal year		9,252,000		1
Outstanding at end of fiscal year		22,543,000		1		18.47		4,576
Exercisable at end of fiscal year		630,000		1		16.31		128

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The expected dividend yield is based on the dividend rate of MHFG common stock at the date of grant.

	For the stock acquisition rights granted during the fiscal years ended March 31,
	2013			2014
Risk-free interest rate		0.10	%		0.08	%
Expected volatility		29.30	%		28.16	%
Expected remaining term (in years)		2.42			2.46
Expected dividend yield		4.69	%		3.11	%

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Gains and Losses Information Related to Net Investment Hedges (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Derivative Instruments, Gain (Loss) [Line Items]
Effective portion recorded in OCI	¥ (102,150)	¥ (65,851)	¥ 8,024
Ineffective portion recorded in income	(7,316)	(2,908)	1,666
Financial instruments hedging foreign exchange risk
Derivative Instruments, Gain (Loss) [Line Items]
Effective portion recorded in OCI	(102,150)	(65,851)	8,024
Ineffective portion recorded in income	¥ (7,316)	¥ (2,908)	¥ 1,666

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Composition of Preferred Stock (Parenthetical) (Detail)	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Class of Stock [Line Items]
Number of shares Authorized	4,251,442,000	4,369,512,000	4,369,512,000
First to fourth series class XIV Preferred Stock | Maximum
Class of Stock [Line Items]
Number of shares Authorized	900,000,000
First to fourth series class XV Preferred Stock | Maximum
Class of Stock [Line Items]
Number of shares Authorized	900,000,000
First to fourth series class XVI Preferred Stock | Maximum
Class of Stock [Line Items]
Number of shares Authorized	1,500,000,000

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Premises and equipment

12 Months Ended

Mar. 31, 2014

Premises and equipment

6. Premises and equipment

Premises and equipment at March 31, 2013 and 2014 consist of the following:

	2013		2014
	(in millions of yen)
Land		268,948		410,739
Buildings		743,473		800,680
Equipment and furniture		418,647		435,655
Leasehold improvements		90,306		92,052
Construction in progress		23,875		35,789
Software		657,702		725,287
Total		2,202,951		2,500,202
Less: Accumulated depreciation and amortization		1,110,962		1,143,608
Premises and equipment—net		1,091,989		1,356,594

Depreciation and amortization expense for premises and equipment for the fiscal years ended March 31, 2012, 2013 and 2014 was ¥160,231 million, ¥151,550 million and ¥155,549 million, respectively.

Premises and equipment under capital leases, which is primarily comprised of data processing equipment, amounted to ¥49,727 million and ¥51,681 million at March 31, 2013 and 2014, respectively. Accumulated depreciation and amortization on such premises and equipment at March 31, 2013 and 2014 amounted to ¥27,830 million and ¥28,209 million, respectively.

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Goodwill and intangible assets

12 Months Ended

Mar. 31, 2014

Goodwill and intangible assets

7. Goodwill and intangible assets

Goodwill

The changes in Goodwill during the fiscal years ended March 31, 2012, 2013 and 2014 were as follows:

	MHBK			Total
	(in millions of yen)
2012
Balance at beginning of fiscal year		7,610			7,610
Goodwill acquired (1)		3,776			3,776
Impairment losses recognized		5,637			5,637
Foreign exchange translation		(114	)		(114	)
Balance at end of fiscal year		5,635			5,635
Gross amount of goodwill		70,909			70,909
Accumulated impairment losses		65,274			65,274
2013
Balance at beginning of fiscal year		5,635			5,635
Goodwill acquired		—			—
Impairment losses recognized		—			—
Foreign exchange translation		512			512
Balance at end of fiscal year		6,147			6,147
Gross amount of goodwill		71,421			71,421
Accumulated impairment losses		65,274			65,274
2014
Balance at beginning of fiscal year		6,147			6,147
Goodwill acquired (2)		7,719			7,719
Impairment losses recognized		3,792			3,792
Foreign exchange translation		1,475			1,475
Balance at end of fiscal year		11,549			11,549
Gross amount of goodwill		80,615			80,615
Accumulated impairment losses		69,066			69,066

Notes:

(1) Goodwill acquired is entirely related to the acquisition of PT. Mizuho Balimor Finance.

(2) Goodwill acquired is entirely related to the acquisition of Banco Mizuho do Brasil S.A.

Due to the prolonged severe business environment for the former Mizuho Investors Securities Co., Ltd. (“MHIS”) and PT. Mizuho Balimor Finance, it was determined that the carrying amounts of the former MHIS reporting unit and PT. Mizuho Balimor Finance reporting unit exceeded their fair values, and therefore, goodwill impairment losses of ¥5,637 million and ¥3,792 million related to the former MHIS and PT. Mizuho Balimor Finance were recognized during the fiscal years ended March 31, 2012 and 2014, respectively.

Intangible assets

The table below presents the gross carrying amount, accumulated amortization and net carrying amount of intangible assets, at March 31, 2013 and 2014.

	2013						2014
	Gross carrying amount		Accumulated amortization		Net carrying amount		Gross carrying amount		Accumulated amortization		Net carrying amount
	(in millions of yen)
Intangible assets subject to amortization:
Customer relationships (Note)		73,949		19,238		54,711		73,949		24,865		49,084
Other		2,363		2,050		313		2,808		2,152		656
Total		76,312		21,288		55,024		76,757		27,017		49,740
Intangible assets not subject to amortization:
Total		9,450		—		9,450		9,207		—		9,207
Total		85,762		21,288		64,474		85,964		27,017		58,947

Note: Customer relationships were acquired by the merger of MHSC and Shinko on May 7, 2009. See Note 1 “Basis of presentation and summary of significant accounting policies” for further information.

For the fiscal years ended March 31, 2012, 2013, and 2014, the MHFG Group recognized ¥5,490 million, ¥5,615 million, and ¥5,709 million, respectively, of amortization expenses for intangible assets.

The table below presents the estimated aggregate amortization expenses for intangible assets for the next five years:

	(in millions of yen)
Fiscal year ending March 31:
2015		5,349
2016		5,058
2017		4,780
2018		4,502
2019		4,264

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Net Periodic Benefit Cost of Severance Indemnities and Pension Plans (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Service cost-benefits earned during the fiscal year	¥ 33,429	¥ 30,422	¥ 27,734
Interest costs on projected benefit obligation	20,341	23,186	24,267
Expected return on plan assets	(37,047)	(32,237)	(28,234)
Amortization of prior service benefit	(195)	(319)	(318)
Amortization of net actuarial loss (gain)	7,039	16,936	25,595
Special termination benefits	5,429	5,454	14,115	[1]
Net periodic benefit cost	¥ 28,996	¥ 43,442	¥ 63,159

[1] The amount for the fiscal year ended March 31, 2012 includes special termination benefits of ¥9,828 million pertaining to MHSC's voluntary retirement scheme.

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Reconciliation for All Assets and Liabilities Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs Level 3 (Detail) (JPY ¥) In Billions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Trading securities sold, not yet purchased
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Gains (losses) in OCI
Transfers out of level 3			(1)
Purchases (in billions of yen)			(41)
Sales			42
Long-term debt
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	381		460
Gains (losses) in Earnings	4	[1]	(26)	[1]
Gains (losses) in OCI
Transfers into Level 3	1		4
Transfers out of level 3	(1)		(175)
Issuances	197		142
Settlements	(73)		(76)
Ending Balance	501		381
Change in unrealized gain (losses) still held	5	[2]	(24)	[2]
Trading securities
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Transfers into Level 3	4		17
Transfers out of level 3	(12)		(11)
Trading securities | Residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	100		159
Gains (losses) in Earnings	10	[3]	17	[3]
Purchases (in billions of yen)			2
Sales	(4)		(7)
Issuances
Settlements	(28)		(71)
Ending Balance	78		100
Change in unrealized gain (losses) still held	7	[2]	6	[2]
Trading securities | Commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	91		26
Gains (losses) in Earnings	5	[3]	1	[3]
Purchases (in billions of yen)			72
Sales			(1)
Issuances
Settlements	(5)		(7)
Ending Balance	91		91
Change in unrealized gain (losses) still held	4	[2]
Trading securities | Corporate bonds and other debt securities
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	417		355
Gains (losses) in Earnings	55	[3]	72	[3]
Transfers into Level 3	4		14
Transfers out of level 3	(12)		(8)
Purchases (in billions of yen)	503		609
Sales	(442)		(544)
Issuances
Settlements	(112)		(81)
Ending Balance	413		417
Change in unrealized gain (losses) still held	35	[2]	42	[2]
Trading securities | Equity securities
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	71		82
Gains (losses) in Earnings	6	[3]	4	[3]
Transfers into Level 3			3
Transfers out of level 3			(3)
Purchases (in billions of yen)	8		10
Sales	(24)		(25)
Issuances
Settlements	(1)
Ending Balance	60		71
Change in unrealized gain (losses) still held			(1)	[2]
Derivative assets
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Transfers out of level 3			(21)
Derivative assets | Interest rate contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	11	[4]	(10)	[4]
Gains (losses) in Earnings	6	[3],[4]	16	[3],[4]
Transfers into Level 3	(1)	[4]
Issuances		[4]		[4]
Settlements	1	[4]	5	[4]
Ending Balance	17	[4]	11	[4]
Change in unrealized gain (losses) still held	11	[2],[4]	16	[2],[4]
Derivative assets | Foreign exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	17	[4]	37	[4]
Gains (losses) in Earnings	(3)	[3],[4]	(18)	[3],[4]
Transfers out of level 3			(8)	[4]
Issuances		[4]		[4]
Settlements	(3)	[4]	6	[4]
Ending Balance	11	[4]	17	[4]
Change in unrealized gain (losses) still held	5	[2],[4]	(21)	[2],[4]
Derivative assets | Equity-related contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	7	[4]	22	[4]
Gains (losses) in Earnings	(6)	[3],[4]	(10)	[3],[4]
Issuances		[4]		[4]
Settlements			(5)	[4]
Ending Balance	1	[4]	7	[4]
Change in unrealized gain (losses) still held	(7)	[2],[4]	(10)	[2],[4]
Derivative assets | Credit-related contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	20	[4]	23	[4]
Gains (losses) in Earnings	(6)	[3],[4]	(6)	[3],[4]
Transfers into Level 3			(1)	[4]
Transfers out of level 3	1	[4]	1	[4]
Issuances		[4]		[4]
Settlements	2	[4]	3	[4]
Ending Balance	17	[4]	20	[4]
Change in unrealized gain (losses) still held	(6)	[2],[4]	(5)	[2],[4]
Derivative assets | Other contracts
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	1	[4]	15	[4]
Transfers out of level 3			(14)	[4]
Issuances		[4]		[4]
Settlements	(1)	[4]
Ending Balance			1	[4]
Available-for-sale securities
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Transfers into Level 3	7
Transfers out of level 3	(30)
Available-for-sale securities | Residential mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	292		348
Gains (losses) in Earnings	(1)	[5]
Gains (losses) in OCI	5	[6]	6	[6]
Purchases (in billions of yen)	5		29
Sales	(9)		(1)
Issuances
Settlements	(72)		(90)
Ending Balance	220		292
Available-for-sale securities | Commercial mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	250		330
Gains (losses) in Earnings	5	[5]	2	[5]
Gains (losses) in OCI	(2)	[6]	12	[6]
Purchases (in billions of yen)	36		31
Sales	(18)		(16)
Issuances
Settlements	(110)		(109)
Ending Balance	161		250
Change in unrealized gain (losses) still held	(1)	[2]	(5)	[2]
Available-for-sale securities | Japanese corporate bonds and other debt securities
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	215		226
Gains (losses) in OCI			1	[6]
Transfers out of level 3	(30)
Purchases (in billions of yen)	60		95
Sales	(1)
Issuances
Settlements	(74)		(107)
Ending Balance	170		215
Available-for-sale securities | Foreign corporate bonds and other debt securities
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	202		236
Gains (losses) in Earnings	8	[5]	4	[5]
Gains (losses) in OCI	(1)	[6]	6	[6]
Transfers into Level 3	7
Purchases (in billions of yen)			28
Sales			(4)
Issuances
Settlements	(75)		(68)
Ending Balance	141		202
Other investments
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	75		189
Gains (losses) in Earnings	(2)	[5]	12	[5]
Transfers out of level 3	(2)
Purchases (in billions of yen)	7		6
Sales	(2)		(49)
Issuances
Settlements	(7)		(83)
Ending Balance	69		75
Change in unrealized gain (losses) still held	¥ (2)	[2]

[1] Gains (losses) in Earnings are reported in Other noninterest income (expenses).

[2] Amounts represent total gains or losses recognized in earnings during the period. These gains or losses are attributable to the change in fair value relating to assets and liabilities classified as Level 3 that are still held at March 31, 2013 and 2014.

[3] Gains (losses) in Earnings are reported in Trading account gains (losses)-net, Foreign exchange gains (losses)-net or Other noninterest income (expenses).

[4] Total Level 3 derivative exposures have been netted on the table for presentation purposes only.

[5] Gains (losses) in Earnings are reported in Investment gains (losses)-net.

[6] Gains (losses) in OCI are reported in Accumulated other comprehensive income (loss).

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Deposits

12 Months Ended

Mar. 31, 2014

Deposits

9. Deposits

The balances of time deposits and certificates of deposit issued by domestic offices in amounts of ¥10 million (approximately US$97 thousand at the Federal Reserve Bank of New York’s noon buying rate on March 31, 2014) or more and the balances of those deposits issued by foreign offices in amounts of US$100,000 or more at March 31, 2013 and 2014 are as follows:

	2013		2014
	(in millions of yen)
Domestic offices:
Time deposits		18,302,196		18,351,826
Certificates of deposit		11,393,094		8,117,512
Total		29,695,290		26,469,338
Foreign offices:
Time deposits		8,209,016		9,555,568
Certificates of deposit		3,933,688		4,638,265
Total		12,142,704		14,193,833

The aggregate amount of demand deposits in overdraft status that have been reclassified as loan balances at March 31, 2013 and 2014 was ¥543 billion and ¥597 billion, respectively.

The balance and remaining maturities of time deposits and certificates of deposit issued by domestic and foreign offices at March 31, 2014 are shown in the following table:

	Time deposits		Certificates of deposit		Total
	(in millions of yen)
Domestic offices:
Due in one year or less		24,079,640		8,115,532		32,195,172
Due after one year through two years		1,910,790		1,980		1,912,770
Due after two years through three years		1,243,980		—		1,243,980
Due after three years through four years		342,948		—		342,948
Due after four years through five years		412,261		—		412,261
Due after five years		133,735		—		133,735
Total		28,123,354		8,117,512		36,240,866
Foreign offices:
Due in one year or less		9,526,641		4,630,546		14,157,187
Due after one year through two years		20,176		7,719		27,895
Due after two years through three years		9,528		—		9,528
Due after three years through four years		1,102		—		1,102
Due after four years through five years		3,240		—		3,240
Due after five years		392		—		392
Total		9,561,079		4,638,265		14,199,344
Total		37,684,433		12,755,777		50,440,210

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Fees and commissions income (Tables)

12 Months Ended

Mar. 31, 2014

Other Income and Other Expense Disclosure

Details of Fees and commissions income for the fiscal years ended March 31, 2012, 2013 and 2014 are as follows:

	2012		2013		2014
	(in millions of yen)
Securities-related business		116,567		132,787		170,311
Deposits, debentures and lending business		97,509		113,989		114,073
Remittance business		105,015		104,574		108,534
Trust fees		45,990		45,621		48,914
Fees for other customer services		210,332		215,837		233,931
Total		575,413		612,808		675,763

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Changes in Each Component of Accumulated Other Comprehensive Income (Loss), Net Of Tax (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of fiscal year	¥ 777,997	¥ 245,588	¥ 104,972
Less: reclassification adjustments for losses (gains) included in net income	(122,606)
Change during year	339,880	532,409	140,616
Balance at end of fiscal year	1,117,877	777,997	245,588
Accumulated Net Unrealized Investment Gain (Loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of fiscal year	995,124	628,636	514,128
Before reclassification adjustments during year	255,140	427,913	87,215
Less: reclassification adjustments for losses (gains) included in net income	(126,992)	(61,425)	27,293
Change during year	128,148	366,488	114,508
Balance at end of fiscal year	1,123,272	995,124	628,636
Accumulated Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of fiscal year	(82,420)	(169,881)	(165,028)
Before reclassification adjustments during year	75,986	87,460	(6,779)
Less: reclassification adjustments for losses (gains) included in net income		1	1,926
Change during year	75,986	87,461	(4,853)
Balance at end of fiscal year	(6,434)	(82,420)	(169,881)
Accumulated Defined Benefit Plans Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of fiscal year	(134,707)	(213,167)	(244,128)
Before reclassification adjustments during year	131,360	67,795	14,711
Less: reclassification adjustments for losses (gains) included in net income	4,386	10,665	16,250
Change during year	135,746	78,460	30,961
Balance at end of fiscal year	¥ 1,039	¥ (134,707)	¥ (213,167)

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Impaired Loans (Parenthetical) (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment	¥ 1,145,060	[1]	¥ 1,464,218	[1]
Small balance homogeneous loans of which were collectively evaluated for impairment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investment	¥ 425,391		¥ 504,750

[1] Amounts represent the outstanding balances of nonaccrual loans. The MHFG Group's policy for placing loans in nonaccrual status completely corresponds to the Group's definition of impaired loans.

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Fair value (Tables)

12 Months Ended

Mar. 31, 2014

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

Assets and liabilities measured at fair value on a recurring basis at March 31, 2013 and 2014, including those for which the MHFG Group has elected the fair value option, are summarized below:

2013	Level 1		Level 2		Level 3		Assets/ Liabilities measured at fair value
	(in billions of yen)
Assets:
Trading securities (1):
Japanese government bonds		4,651		49		—		4,700
Japanese local government bonds		—		125		—		125
U.S. Treasury bonds and federal agency securities		5,777		306		—		6,083
Other foreign government bonds		2,235		194		—		2,429
Agency mortgage-backed securities		2,055		596		—		2,651
Residential mortgage-backed securities		—		—		100		100
Commercial mortgage-backed securities		—		3		91		94
Certificates of deposit and commercial paper		—		1,318		—		1,318
Corporate bonds and other		50		1,176		417		1,643
Equity securities		622		503		71		1,196
Derivatives:
Interest rate contracts		7		10,319		24		10,350
Foreign exchange contracts		5		3,066		28		3,099
Equity-related contracts		45		114		23		182
Credit-related contracts		—		30		29		59
Other contracts		—		18		20		38
Available-for-sale securities:
Japanese government bonds		29,198		1,585		—		30,783
Japanese local government bonds		—		244		—		244
U.S. Treasury bonds and federal agency securities		178		—		—		178
Other foreign government bonds		334		264		—		598
Agency mortgage-backed securities		144		862		—		1,006
Residential mortgage-backed securities		—		150		292		442
Commercial mortgage-backed securities		—		—		250		250
Japanese corporate bonds and other debt securities		—		2,000		215		2,215
Foreign corporate bonds and other debt securities		12		345		202		559
Equity securities (marketable)		2,975		164		—		3,139
Other investments		1		—		75		76
Total assets measured at fair value on a recurring basis (2)		48,289		23,431		1,837		73,557
Liabilities:
Trading securities sold, not yet purchased		3,338		182		—		3,520
Derivatives:
Interest rate contracts		8		9,997		13		10,018
Foreign exchange contracts		4		2,968		11		2,983
Equity-related contracts		51		110		16		177
Credit-related contracts		—		35		9		44
Other contracts		—		8		19		27
Long-term debt (3)		—		171		381		552
Total liabilities measured at fair value on a recurring basis		3,401		13,471		449		17,321

2014	Level 1		Level 2		Level 3		Assets/ Liabilities measured at fair value
	(in billions of yen)
Assets:
Trading securities (1):
Japanese government bonds		3,360		50		—		3,410
Japanese local government bonds		—		74		—		74
U.S. Treasury bonds and federal agency securities		3,541		486		—		4,027
Other foreign government bonds		2,567		274		—		2,841
Agency mortgage-backed securities		1,390		364		—		1,754
Residential mortgage-backed securities		—		—		78		78
Commercial mortgage-backed securities		—		2		91		93
Certificates of deposit and commercial paper		—		969		—		969
Corporate bonds and other		38		1,671		413		2,122
Equity securities		714		579		60		1,353
Derivatives:
Interest rate contracts		43		7,997		24		8,064
Foreign exchange contracts		6		2,331		17		2,354
Equity-related contracts		60		124		13		197
Credit-related contracts		—		28		21		49
Other contracts		1		18		4		23
Available-for-sale securities:
Japanese government bonds		20,912		1,144		—		22,056
Japanese local government bonds		—		245		—		245
U.S. Treasury bonds and federal agency securities		154		—		—		154
Other foreign government bonds		280		441		—		721
Agency mortgage-backed securities		105		856		—		961
Residential mortgage-backed securities		—		112		220		332
Commercial mortgage-backed securities		—		—		161		161
Japanese corporate bonds and other debt securities		—		1,858		170		2,028
Foreign corporate bonds and other debt securities		1		427		141		569
Equity securities (marketable)		3,348		74		—		3,422
Other investments		2		—		69		71
Total assets measured at fair value on a recurring basis (2)		36,522		20,124		1,482		58,128
Liabilities:
Trading securities sold, not yet purchased		3,862		488		—		4,350
Derivatives:
Interest rate contracts		42		7,846		7		7,895
Foreign exchange contracts		5		2,340		6		2,351
Equity-related contracts		58		108		12		178
Credit-related contracts		—		30		4		34
Other contracts		1		12		4		17
Long-term debt (3)		—		157		501		658
Total liabilities measured at fair value on a recurring basis		3,968		10,981		534		15,483

Notes:

(1) Trading securities include foreign currency denominated securities for which the MHFG Group elected the fair value option.

(2) Amounts include the investments measured at the NAV per share at March 31, 2013 and 2014, of ¥715 billion and ¥649 billion, respectively, of which ¥667 billion and ¥612 billion, respectively, are classified in Level 2, and ¥48 billion and ¥37 billion, respectively, are classified in Level 3. The amounts of unfunded commitments related to these investments at March 31, 2013 and 2014 were ¥24 billion and ¥23 billion, respectively.

(3) Amounts represent items for which the Group elected the fair value option.

Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation

The following table presents a reconciliation for all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) for the fiscal years ended March 31, 2013 and 2014:

2013	April 1, 2012			Gains (losses) in Earnings			Gains (losses) in OCI			Transfers into Level 3			Transfers out of Level 3			Purchases			Sales			Issuances		Settlements			March 31, 2013		Change in unrealized gains (losses) still held (6)
	(in billions of yen)
Assets:
Trading securities:
Residential mortgage- backed securities		159			17	(2)		—			—			—			2			(7	)		—		(71	)		100		6
Commercial mortgage- backed securities		26			1	(2)		—			—			—			72			(1	)		—		(7	)		91		—
Corporate bonds and other		355			72	(2)		—			14			(8	)		609			(544	)		—		(81	)		417		42
Equity securities		82			4	(2)		—			3			(3	)		10			(25	)		—		—			71		(1	)
Derivatives, net (1):
Interest rate contracts		(10	)		16	(2)		—			—			—			—			—			—		5			11		16
Foreign exchange contracts		37			(18	)(2)		—			—			(8	)		—			—			—		6			17		(21	)
Equity-related contracts		22			(10	)(2)		—			—			—			—			—			—		(5	)		7		(10	)
Credit-related contracts		23			(6	)(2)		—			(1	)		1			—			—			—		3			20		(5	)
Other contracts		15			—	(2)		—			—			(14	)		—			—			—		—			1		—
Available-for-sale securities:
Residential mortgage- backed securities		348			—	(3)		6	(4)		—			—			29			(1	)		—		(90	)		292		—
Commercial mortgage- backed securities		330			2	(3)		12	(4)		—			—			31			(16	)		—		(109	)		250		(5	)
Japanese corporate bonds and other debt securities		226			—	(3)		1	(4)		—			—			95			—			—		(107	)		215		—
Foreign corporate bonds and other debt securities		236			4	(3)		6	(4)		—			—			28			(4	)		—		(68	)		202		—
Other investments		189			12	(3)		—			—			—			6			(49	)		—		(83	)		75		—
Liabilities:
Trading securities sold, not yet purchased		—			—	(2)		—			—			(1	)		(41	)		42			—		—			—		—
Long-term debt		460			(26	)(5)		—			4			(175	)		—			—			142		(76	)		381		(24	)

2014	April 1, 2013		Gains (losses) in Earnings			Gains (losses) in OCI			Transfers into Level 3			Transfers out of Level 3			Purchases		Sales			Issuances		Settlements			March 31, 2014		Change in unrealized gains (losses) still held (6)
	(in billions of yen)
Assets:
Trading securities:
Residential mortgage-backed securities		100		10	(2)		—			—			—			—		(4	)		—		(28	)		78		7
Commercial mortgage-backed securities		91		5	(2)		—			—			—			—		—			—		(5	)		91		4
Corporate bonds and other		417		55	(2)		—			4			(12	)		503		(442	)		—		(112	)		413		35
Equity securities		71		6	(2)		—			—			—			8		(24	)		—		(1	)		60		—
Derivatives, net (1):
Interest rate contracts		11		6	(2)		—			(1	)		—			—		—			—		1			17		11
Foreign exchange contracts		17		(3	)(2)		—			—			—			—		—			—		(3	)		11		5
Equity-related contracts		7		(6	)(2)		—			—			—			—		—			—		—			1		(7	)
Credit-related contracts		20		(6	)(2)		—			—			1			—		—			—		2			17		(6	)
Other contracts		1		—	(2)		—			—			—			—		—			—		(1	)		—		—
Available-for-sale securities:
Residential mortgage-backed securities		292		(1	)(3)		5	(4)		—			—			5		(9	)		—		(72	)		220		—
Commercial mortgage-backed securities		250		5	(3)		(2	)(4)		—			—			36		(18	)		—		(110	)		161		(1	)
Japanese corporate bonds and other debt securities		215		—	(3)		—	(4)		—			(30	)		60		(1	)		—		(74	)		170		—
Foreign corporate bonds and other debt securities		202		8	(3)		(1	)(4)		7			—			—		—			—		(75	)		141		—
Other investments		75		(2	)(3)		—			—			(2	)		7		(2	)		—		(7	)		69		(2	)
Liabilities:
Long-term debt		381		4	(5)		—			1			(1	)		—		—			197		(73	)		501		5

Notes:

(1) Total Level 3 derivative exposures have been netted on the table for presentation purposes only.

(2) Gains (losses) in Earnings are reported in Trading account gains (losses)—net, Foreign exchange gains (losses)—net or Other noninterest income (expenses).

(3) Gains (losses) in Earnings are reported in Investment gains (losses)—net.

(4) Gains (losses) in OCI are reported in Accumulated other comprehensive income (loss).

(5) Gains (losses) in Earnings are reported in Other noninterest income (expenses).

(6) Amounts represent total gains or losses recognized in earnings during the period. These gains or losses are attributable to the change in fair value relating to assets and liabilities classified as Level 3 that are still held at March 31, 2013 and 2014.

Quantitative Information About Level Three Fair Value Measurements

The following table presents information about significant unobservable inputs related to the MHFG Group’s material classes of Level 3 assets and liabilities at March 31, 2013 and 2014:

2013
Products/Instruments	Fair value		Principal valuation technique	Unobservable inputs	Range of input values
(in billions of yen, except for ratios and basis points)
Trading securities and Available-for-sale securities:
Residential mortgage-backed securities		392	Discounted cash flow	Prepayment rate		0%–24%
			Price-based	Default rate		0%–5%
				Recovery rate		70%–100%
				Discount margin		7bps–2,616bps
Commercial mortgage-backed securities		341	Discounted cash flow	Discount margin		9bps–3,929bps
			Price-based
Corporate bonds and other debt securities		834	Discounted cash flow	Prepayment rate (1)		0%–43%
			Price-based	Default rate (1)		0%–8%
				Recovery rate (1)		15%–85%
				Discount margin (1)		0bps–4,918bps
				Discount margin (2)		0bps–1,232bps
Derivatives, net:
Interest rate contracts		11	Internal valuation model (3)	IR – IR correlation		42%–100%
				Default rate (4)		0%–63%
Foreign exchange contracts		17	Internal valuation model (3)	FX – IR correlation		36%–55%
				FX – FX correlation		55%–55%
				FX volatility		16%–26%
				Default rate (4)		0%–63%
Equity-related contracts		7	Internal valuation model(3)	Equity – IR correlation		0%–60%
				Equity – FX correlation		0%–70%
				Equity volatility		14%–48%
Credit-related contracts (5)		20	Internal valuation model (3)	Default rate		0%–67%
				Credit correlation		2%–100%
Long-term debt		381	Internal valuation model (3)	IR – IR correlation		42%–100%
				FX – IR correlation		36%–55%
				FX – FX correlation		55%–55%
				Equity – IR correlation		0%–60%
				Equity volatility		18%–48%
				Default rate		0%–10%
				Credit correlation		2%–100%

2014
Products/Instruments	Fair value		Principal valuation technique	Unobservable inputs	Range of input values
(in billions of yen, except for ratios and basis points)
Trading securities and Available-for-sale securities:
Residential mortgage-backed securities		298	Discounted cash flow	Prepayment rate		1%–24%
			Price-based	Default rate		0%–4%
				Recovery rate		70%–100%
				Discount margin		8bps–2,002bps
Commercial mortgage-backed securities		252	Discounted cash flow	Discount margin		17bps – 3,441bps
			Price-based
Corporate bonds and other debt securities		724	Discounted cash flow	Prepayment rate (1)		0%–42%
			Price-based	Default rate (1)		0%–9%
				Recovery rate (1)		15%–75%
				Discount margin (1)		12bps–1,725bps
				Discount margin (2)		-122bps–1,303bps
Derivatives, net:
Interest rate contracts		17	Internal valuation model (3)	IR – IR correlation		23%–100%
				Default rate (4)		0%–63%
Foreign exchange contracts		11	Internal valuation model (3)	FX – IR correlation		28%–52%
				FX – FX correlation		55%–55%
				FX volatility		14%–25%
				Default rate (4)		0%–63%
Equity-related contracts		1	Internal valuation model (3)	Equity – IR correlation		0%–60%
				Equity – FX correlation		0%–70%
				Equity volatility		18%–35%
Credit-related contracts (5)		17	Internal valuation model (3)	Default rate		0%–47%
				Credit correlation		1%–100%
Long-term debt		501	Internal valuation model (3)	IR – IR correlation		23%–100%
				FX – IR correlation		28%–52%
				FX – FX correlation		55%–55%
				Equity – IR correlation		0%–60%
				Equity – FX correlation		0%–70%
				Equity volatility		13%–37%
				Default rate		0%–5%
				Credit correlation		19%–100%

Notes:

(1) These inputs are mainly used for determining the fair values of securitization products such as CDO, CLO and ABS, other than RMBS and CMBS.

(2) This input is mainly used for determining the fair values of Japanese corporate bonds and foreign corporate bonds.

(3) Internal valuation model includes discounted cash flow models and the Black-Scholes option pricing model.

(4) This input represents the counterparty default rate derived from the MHFG Group’s own internal credit analysis.

(5) The majority of the fair value of credit derivatives in Level 3 relates to credit derivatives economically hedging the credit risk in certain securitization products. The unobservable inputs of these credit derivatives have already been included in the unobservable inputs related to Trading securities and Available-for-sale securities disclosed above.

IR = Interest rate

FX = Foreign exchange

Fair Value, Assets and Liabilities Measured on Nonrecurring Basis

The following table shows the fair value hierarchy for these items as of March 31, 2013 and 2014.

2013	Total		Level 1		Level 2		Level 3		Aggregate cost
	(in billions of yen)
Assets:
Loans		222		—		—		222		343
Loans held-for-sale		5		—		5		—		5
Other investments		11		—		—		11		16
Premises and equipment—net		1		—		—		1		5
Total assets at fair value on a nonrecurring basis		239		—		5		234		369

2014	Total		Level 1		Level 2		Level 3		Aggregate cost
	(in billions of yen)
Assets:
Loans		124		—		—		124		208
Loans held-for-sale		33		—		—		33		34
Other investments		5		—		—		5		6
Premises and equipment—net		1		—		—		1		2
Goodwill		—		—		—		—		4
Total assets at fair value on a nonrecurring basis		163		—		—		163		254

Fair Value, by Balance Sheet Grouping

The following table shows the carrying amounts and fair values at March 31, 2013 and 2014, of certain financial instruments, excluding financial instruments which are carried at fair value on a recurring basis and those outside the scope of ASC 825 such as the equity method investments and lease contracts as defined in ASC 840, “Leases” (“ASC 840”) :

	2013
	Carrying amount		Estimated fair value
			Total		Level 1		Level 2		Level 3
	(in billions of yen)
Financial assets:
Cash and due from banks, call loans and funds sold, and receivables under resale agreements and securities borrowing transactions		27,583		27,583		903		26,680		—
Investments		3,000		3,020		3,020		—		—
Loans, net of allowance for loan losses (Note)		69,028		70,261		—		—		70,261
Financial liabilities:
Noninterest-bearing deposits, call money and funds purchased, and payables under repurchase agreements and securities lending transactions		48,048		48,048		12,796		35,252		—
Interest-bearing deposits		87,247		87,210		34,596		52,614		—
Due to trust accounts		619		619		—		619		—
Other short-term borrowings		6,724		6,723		—		6,723		—
Long-term debt		8,235		8,598		—		7,967		631

	2014
	Carrying amount		Estimated fair value
			Total		Level 1		Level 2		Level 3
	(in billions of yen)
Financial assets:
Cash and due from banks, call loans and funds sold, and receivables under resale agreements and securities borrowing transactions		34,563		34,563		1,437		33,126		—
Investments		4,040		4,058		4,058		—		—
Loans, net of allowance for loan losses (Note)		72,801		73,975		—		—		73,975
Financial liabilities:
Noninterest-bearing deposits, call money and funds purchased, and payables under repurchase agreements and securities lending transactions		44,124		44,124		13,543		30,581		—
Interest-bearing deposits		88,744		88,705		37,394		51,311		—
Due to trust accounts		742		742		—		742		—
Other short-term borrowings		6,024		6,024		—		6,024		—
Long-term debt		9,176		9,441		—		8,600		841

Note: Loans, net of allowance for loan losses include items measured at fair value on a nonrecurring basis.

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Balance and Remaining Maturities of Time Deposits and Certificates of Deposit Issued by Domestic and Foreign Offices (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014
Deposits From Banking Clients [Line Items]
Total	¥ 50,440,210
Domestic
Deposits From Banking Clients [Line Items]
Due in one year or less	32,195,172
Due after one year through two years	1,912,770
Due after two years through three years	1,243,980
Due after three years through four years	342,948
Due after four years through five years	412,261
Due after five years	133,735
Total	36,240,866
Foreign
Deposits From Banking Clients [Line Items]
Due in one year or less	14,157,187
Due after one year through two years	27,895
Due after two years through three years	9,528
Due after three years through four years	1,102
Due after four years through five years	3,240
Due after five years	392
Total	14,199,344
Time deposits
Deposits From Banking Clients [Line Items]
Total	37,684,433
Time deposits | Domestic
Deposits From Banking Clients [Line Items]
Due in one year or less	24,079,640
Due after one year through two years	1,910,790
Due after two years through three years	1,243,980
Due after three years through four years	342,948
Due after four years through five years	412,261
Due after five years	133,735
Total	28,123,354
Time deposits | Foreign
Deposits From Banking Clients [Line Items]
Due in one year or less	9,526,641
Due after one year through two years	20,176
Due after two years through three years	9,528
Due after three years through four years	1,102
Due after four years through five years	3,240
Due after five years	392
Total	9,561,079
Certificates of deposit
Deposits From Banking Clients [Line Items]
Total	12,755,777
Certificates of deposit | Domestic
Deposits From Banking Clients [Line Items]
Due in one year or less	8,115,532
Due after one year through two years	1,980
Total	8,117,512
Certificates of deposit | Foreign
Deposits From Banking Clients [Line Items]
Due in one year or less	4,630,546
Due after one year through two years	7,719
Total	¥ 4,638,265

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Variable interest entities and securitizations (Tables)

12 Months Ended

Mar. 31, 2014

Schedule of Variable Interest Entities

The tables below show consolidated assets of the Group’s consolidated VIEs as well as total assets and maximum exposure to loss for its significant unconsolidated VIEs, as of March 31, 2013 and 2014:

	Consolidated VIEs		Significant unconsolidated VIEs
2013	Consolidated assets		Total assets		Maximum exposure to loss
	(in billions of yen)
Asset-backed commercial paper/loan programs		2,212		—		—
Asset-backed securitizations		385		463		37
Investments in securitization products		—		530		206
Investment funds		1,175		2,770		302
Trust arrangements and other		39		—		—
Total		3,811		3,763		545

	Consolidated VIEs		Significant unconsolidated VIEs
2014	Consolidated assets		Total assets		Maximum exposure to loss
	(in billions of yen)
Asset-backed commercial paper/loan programs		2,403		—		—
Asset-backed securitizations		423		385		39
Investments in securitization products		181		531		200
Investment funds		1,508		2,935		387
Trust arrangements and other		38		—		—
Total		4,553		3,851		626

Unconsolidated VIEs

Schedule of Variable Interest Entities

The tables below present the carrying amounts and classification of assets and liabilities on the MHFG Group’s balance sheets that relate to its variable interests in the significant unconsolidated VIEs, as of March 31, 2013 and 2014:

Assets on balance sheets related to unconsolidated VIEs:	2013		2014
	(in billions of yen)
Trading account assets		46		29
Investments		206		222
Loans		308		316
Total		560		567
Liabilities on balance sheets and maximum exposure to loss related to unconsolidated VIEs:	2013		2014
	(in billions of yen)
Payables under securities lending transactions		14		4
Total		14		4
Maximum exposure to loss		545		626

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Maximum Exposure or Notional Amount Under Guarantee Contracts (Detail) (JPY ¥) In Billions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	¥ 3,803	¥ 3,416
Performance guarantees
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	1,985	1,750
Guarantees on loans
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	399	452
Guarantees on securities
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	170	146
Other guarantees
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	1,249	1,068
Guarantees for the repayment of trust principal
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	158	171
Liabilities of trust accounts
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	11,158	8,606
Derivative financial instruments
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	21,422	23,582
One year or less | Performance guarantees
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	1,125	935
One year or less | Guarantees on loans
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	173	159
One year or less | Guarantees on securities
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	42	19
One year or less | Other guarantees
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	991	826
One year or less | Liabilities of trust accounts
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	10,962	8,428
One year or less | Derivative financial instruments
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	8,643	10,185
After one year through five years | Performance guarantees
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	708	619
After one year through five years | Guarantees on loans
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	21	51
After one year through five years | Guarantees on securities
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	128	127
After one year through five years | Other guarantees
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	220	217
After one year through five years | Guarantees for the repayment of trust principal
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	125	133
After one year through five years | Liabilities of trust accounts
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	78	72
After one year through five years | Derivative financial instruments
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	11,391	11,837
After five years | Performance guarantees
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	152	196
After five years | Guarantees on loans
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	205	242
After five years | Other guarantees
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	38	25
After five years | Guarantees for the repayment of trust principal
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	33	38
After five years | Liabilities of trust accounts
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	118	106
After five years | Derivative financial instruments
Guarantor Obligations [Line Items]
Maximum potential/Contractual or Notional amount	¥ 1,388	¥ 1,560

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Premises and Equipment - Additional Information (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Property, Plant and Equipment [Line Items]
Depreciation and amortization	¥ 155,549	¥ 151,550	¥ 160,231
Premises and equipment under capital leases, accumulated depreciation and amortization	1,143,608	1,110,962
Premises and equipment under capital leases
Property, Plant and Equipment [Line Items]
Premises and equipment under capital leases	51,681	49,727
Premises and equipment under capital leases, accumulated depreciation and amortization	¥ 28,209	¥ 27,830

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Tax Effects of Items Recorded Directly in Equity (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Unrealized net gains (losses) on available-for-sale securities:
Unrealized gains (losses)	¥ 161,269	¥ 235,274	¥ 29,925
Less: reclassification adjustments	(70,228)	(33,988)	18,249
Total	91,041	201,286	48,174
Pension liability adjustments:
Unrealized gains (losses)	71,646	34,171	2,367
Less: reclassification adjustments	2,442	5,913	8,992
Total	74,088	40,084	11,359
Total tax effect before allocation to noncontrolling interests	¥ 165,129	¥ 241,370	¥ 59,533

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Trading account gains and losses

12 Months Ended

Mar. 31, 2014

Trading account gains and losses

27. Trading account gains and losses

The MHFG Group performs trading activities through market making, sales, and arbitrage. Accordingly, Trading account gains (losses)—net include gains and losses from transactions undertaken for trading purposes, including both market making for customers and proprietary trading, or transactions through which the Group seeks to capture gains arising from short-term changes in market value. Trading account gains (losses)—net also include gains and losses related to changes in the fair value of derivatives and other financial instruments not eligible for hedge accounting under U.S. GAAP that are utilized to offset mainly interest rate risk related to the Group’s various assets and liabilities, as well as gains and losses related to changes in the fair value of foreign currency-denominated available-for-sale securities for which the fair value option is elected in accordance with ASC 825, “Financial Instruments” (“ASC 825”). Net trading gains (losses) for the fiscal years ended March 31, 2012, 2013 and 2014 are comprised of the following:

	2012			2013			2014
	(in millions of yen)
Trading account gains (losses)—net:
Trading securities		227,056			468,029			80,606
Derivative contracts:
Interest rate contracts (1)		261,568			219,385			(79,562	)
Foreign exchange contracts		(146,258	)		(91,300	)		(13,167	)
Equity-related contracts (1)		(7,150	)		(59,462	)		(41,607	)
Credit-related contracts (2)		(2,184	)		(174	)		899
Other contracts		283			(2,378	)		(6,856	)
Total		333,315			534,100			(59,687	)
Foreign exchange gains (losses)—net (3)		98,054			20,514			25,631
Net trading gains (losses)		431,369			554,614			(34,056	)

Notes:

(1) The net gain (loss) excluded from the assessment of the effectiveness of fair value hedges is included in the above table.

(2) Amounts do not include the net loss of ¥3,391 million, ¥6,703 million and ¥8,660 million on the credit derivatives hedging the credit risk of loans during the fiscal years ended March 31, 2012, 2013 and 2014, respectively. The net loss is recorded in Other noninterest expenses.

(3) Amounts include realized and unrealized gains and losses on both derivative instruments and nonderivative instruments, such as translation gains and losses related to foreign currency-denominated available-for-sale securities for which the fair value option is elected in accordance with ASC 825.

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Plans with Projected Benefit Obligations in Excess of Plan Assets and Plans with Accumulated Benefit Obligations in Excess of Plan Assets (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Plans with projected benefit obligations in excess of plan assets:
Projected benefit obligation	¥ 40,509	[1]	¥ 95,789	[1]
Fair value of plan assets	21,898		70,690
Plans with accumulated benefit obligations in excess of plan assets:
Accumulated benefit obligation	39,590		91,210
Fair value of plan assets	¥ 21,898		¥ 70,690

[1] The plans with projected benefit obligations in excess of plan assets include those with accumulated benefit obligations in excess of plan assets.

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Carrying Amounts and Fair Values of Certain Financial Instruments Excluding Financial Instruments Which Are Carried at Fair Value on a Recurring Basis and Those Outside Scope of Asc 825 (Detail) (JPY ¥) In Billions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Carrying amount
Financial assets:
Cash and due from banks, call loans and funds sold, and receivables under resale agreements and securities borrowing transactions	¥ 34,563		¥ 27,583
Investments	4,040		3,000
Loans, net of allowance for loan losses	72,801	[1]	69,028	[1]
Financial liabilities:
Noninterest-bearing deposits, call money and funds purchased, and payables under repurchase agreements and securities lending transactions	44,124		48,048
Interest-bearing deposits	88,744		87,247
Due to trust accounts	742		619
Other short-term borrowings	6,024		6,724
Long-term debt	9,176		8,235
Estimated fair value
Financial assets:
Cash and due from banks, call loans and funds sold, and receivables under resale agreements and securities borrowing transactions	34,563		27,583
Investments	4,058		3,020
Loans, net of allowance for loan losses	73,975	[1]	70,261	[1]
Financial liabilities:
Noninterest-bearing deposits, call money and funds purchased, and payables under repurchase agreements and securities lending transactions	44,124		48,048
Interest-bearing deposits	88,705		87,210
Due to trust accounts	742		619
Other short-term borrowings	6,024		6,723
Long-term debt	9,441		8,598
Estimated fair value | Level 1
Financial assets:
Cash and due from banks, call loans and funds sold, and receivables under resale agreements and securities borrowing transactions	1,437		903
Investments	4,058		3,020
Financial liabilities:
Noninterest-bearing deposits, call money and funds purchased, and payables under repurchase agreements and securities lending transactions	13,543		12,796
Interest-bearing deposits	37,394		34,596
Estimated fair value | Level 2
Financial assets:
Cash and due from banks, call loans and funds sold, and receivables under resale agreements and securities borrowing transactions	33,126		26,680
Financial liabilities:
Noninterest-bearing deposits, call money and funds purchased, and payables under repurchase agreements and securities lending transactions	30,581		35,252
Interest-bearing deposits	51,311		52,614
Due to trust accounts	742		619
Other short-term borrowings	6,024		6,723
Long-term debt	8,600		7,967
Estimated fair value | Level 3
Financial assets:
Loans, net of allowance for loan losses	73,975	[1]	70,261	[1]
Financial liabilities:
Long-term debt	¥ 841		¥ 631

[1] Loans, net of allowance for loan losses include items measured at fair value on a nonrecurring basis.

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Short-term borrowings and long-term debt (Tables)

12 Months Ended

Mar. 31, 2014

Details of Other Short-Term Borrowings

Details of Other short-term borrowings at March 31, 2013 and 2014 are as follows:

	2013		2014
	(in millions of yen)
Commercial paper and short-term notes issued by consolidated VIEs of asset-backed commercial paper programs (1) (2)		252,277		286,968
Short-term notes issued by MHFG and its subsidiaries (1)		477,400		497,100
Borrowings from the Bank of Japan		5,884,304		5,138,003
Other		110,119		101,901
Total		6,724,100		6,023,972

Notes:

(1) Short-term notes are issued under laws of Japan in the form of dematerialized commercial paper, whose characteristics are economically the same as commercial paper.

(2) Commercial paper and short-term notes issued by consolidated VIEs of asset-backed commercial paper programs in the above table consist of commercial paper and short-term notes, of which amounts were ¥164,194 million and ¥88,083 million, respectively, at March 31, 2013, and ¥199,500 million and ¥87,468 million, respectively, at March 31, 2014.

Long-Term Obligations

Long-term debt with original maturities of more than one year at March 31, 2013 and 2014 is comprised of the following:

	2013		2014
	(in millions of yen)
Obligations under capital leases		24,406		26,680
Loan participation borrowings		62,332		79,014
Senior borrowings and bonds		4,784,010		5,805,634
Subordinated borrowings and bonds		3,931,475		3,942,613
Total		8,802,223		9,853,941

Schedule of Long-term Debt Instruments

The following table presents the interest rates and maturities of senior borrowings and bonds, and subordinated borrowings and bonds:

	Interest rates (1)		Maturities (2)		2013		2014
	(%)				(in millions of yen)
Senior borrowings and bonds:
fixed rate denominated in Japanese yen		0.00-10.00		Apr. 2014-Mar. 2044		2,741,475		3,557,508
fixed rate denominated in U.S. dollars		0.00-7.49		Apr. 2014-Jul. 2043		520,714		604,281
fixed rate denominated in other currencies		0.02-5.40		Jan. 2015-Mar. 2029		683		25,687
floating rate denominated in Japanese yen		0.00-18.10		Apr. 2014-Mar. 2044		1,065,708		1,063,111
floating rate denominated in U.S. dollars		0.00-15.60		Apr. 2014-Mar. 2028		426,515		532,199
floating rate denominated in other currencies		0.05-0.58		Apr. 2014-Jan. 2015		28,915		22,848
Total						4,784,010		5,805,634
Subordinated borrowings and bonds:
fixed rate denominated in Japanese yen		1.09-4.74		Apr. 2014-Perpetual		3,393,092		3,249,999
fixed rate denominated in U.S. dollars		4.30-14.91		Apr. 2014-Perpetual		419,383		613,609
floating rate denominated in Japanese yen		0.98-2.61		Jun. 2019-Perpetual		119,000		79,005
Total						3,931,475		3,942,613
Total						8,715,485		9,748,247

Notes:

(1) The interest rates disclosed reflect the range of contractual rates in effect at March 31, 2014.

(2) Maturity information disclosed is the range of maturities at March 31, 2014.

(3) None of the long-term debt issuances above are convertible to common stock.

(4) Certain debt agreements permit the MHFG Group to redeem the related debt, in whole or in part, prior to maturity at the MHFG Group’s option on terms specified in the respective agreements.

Schedule of Maturities of Long-term Debt

The following is a summary of the contractual maturities of long-term debt subsequent to March 31, 2014:

	(in millions of yen)
Fiscal year ending March 31:
2015		1,222,317
2016		1,190,985
2017		1,776,546
2018		1,025,441
2019		483,888
2020 and thereafter		4,154,764
Total		9,853,941

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Common stock

12 Months Ended

Mar. 31, 2014

Common stock

14. Common stock

On September 1, 2011, MHFG exchanged 824,271,984 shares of its common stock for 30.15 percent of the voting equity interests in MHTB, in order to turn MHTB into MHFG’s wholly-owned subsidiary. This transaction was accounted for as an equity transaction. The consideration through issuance of common stock was ¥95,828 million and the MHFG Group recognized a decrease of ¥65,494 million in additional paid-in capital which reflects the adjustment to the carrying amount of Noncontrolling interests. In addition, the carrying amount of Accumulated other comprehensive income of ¥958 million was adjusted to reflect the change in the ownership interest in MHTB through a corresponding increase in additional paid-in capital.

On September 1, 2011, the former MHCB exchanged 951,166,005 shares of MHFG’s common stock for 40.80 percent of the voting equity interests in the former MHSC, in order to turn the former MHSC into the former MHCB’s wholly-owned subsidiary. This transaction was accounted for as an equity transaction. The consideration through issuance of common stock was ¥110,379 million and the Group recognized increase of ¥38,423 million in additional paid-in capital which reflects the adjustment to the carrying amount of Noncontrolling interests. In addition, the carrying amount of Accumulated other comprehensive income of ¥2,178 million was adjusted to reflect the change in the ownership interest in the former MHSC through a corresponding decrease in additional paid-in capital.

On September 1, 2011, the former MHBK exchanged 322,928,897 shares of MHFG’s common stock for 46.02 percent of the voting equity interests in the former MHIS, in order to turn the former MHIS into the former MHBK’s wholly-owned subsidiary. This transaction was accounted for as an equity transaction. The consideration through issuance of common stock was ¥37,497 million and the Group recognized increase of ¥11,599 million in additional paid-in capital which reflects the adjustment to the carrying amount of Noncontrolling interests. In addition, the carrying amount of Accumulated other comprehensive income of ¥744 million was adjusted to reflect the change in the ownership interest in the former MHIS through a corresponding increase in additional paid-in capital.

The changes in the number of issued shares of common stock during the fiscal years ended March 31, 2012, 2013 and 2014 were as follows:

	2012		2013		2014
	(shares)
Balance at beginning of fiscal year		21,782,185,320		24,048,165,727		24,164,864,477
Issuance of new shares of common stock by conversion of Eleventh series class XI preferred stock		151,921,540		116,698,750		99,020,710
Issuance of new shares of common stock by exercise of stock acquisition rights		4,748,000		—		—
Issuance of new shares of common stock for stock exchanges		2,109,310,867		—		—
Balance at end of fiscal year		24,048,165,727		24,164,864,477		24,263,885,187

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Changes in Number of Shares and Aggregate Amount of Preferred Stock (Detail) (JPY ¥) In Millions, except Share data, unless otherwise specified				12 Months Ended											12 Months Ended			12 Months Ended											12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2014 Preferred stock	Mar. 31, 2012 Preferred stock	Mar. 31, 2011 Preferred stock	Mar. 31, 2014 Preferred stock Eleventh series class XI preferred stock		Mar. 31, 2013 Preferred stock Eleventh series class XI preferred stock		Mar. 31, 2012 Preferred stock Eleventh series class XI preferred stock		Mar. 31, 2011 Preferred stock Eleventh series class XI preferred stock		Mar. 31, 2014 Preferred stock Thirteenth series class XIII preferred stock	Mar. 31, 2012 Preferred stock Thirteenth series class XIII preferred stock	Mar. 31, 2011 Preferred stock Thirteenth series class XIII preferred stock	Mar. 31, 2014 Preferred stock Stock Issued	Mar. 31, 2012 Preferred stock Stock Issued	Mar. 31, 2011 Preferred stock Stock Issued	Mar. 31, 2014 Preferred stock Stock Issued Eleventh series class XI preferred stock		Mar. 31, 2013 Preferred stock Stock Issued Eleventh series class XI preferred stock		Mar. 31, 2012 Preferred stock Stock Issued Eleventh series class XI preferred stock		Mar. 31, 2011 Preferred stock Stock Issued Eleventh series class XI preferred stock		Mar. 31, 2014 Preferred stock Stock Issued Thirteenth series class XIII preferred stock	Mar. 31, 2012 Preferred stock Stock Issued Thirteenth series class XIII preferred stock	Mar. 31, 2011 Preferred stock Stock Issued Thirteenth series class XIII preferred stock
Class of Stock [Line Items]
Issued at beginning of year				951,442,000	951,442,000	951,442,000	914,752,000	[1]	914,752,000	[1]	914,752,000	[1]	914,752,000	[1]	36,690,000	36,690,000	36,690,000
Net change				(36,690,000)											(36,690,000)
Issued at end of year				914,752,000	951,442,000	951,442,000	914,752,000	[1]	914,752,000	[1]	914,752,000	[1]	914,752,000	[1]		36,690,000	36,690,000
Balance at beginning of fiscal year	¥ 6,621,371	¥ 5,857,095	¥ 4,647,024	¥ 377,354	¥ 410,368	¥ 453,576												¥ 951,442	¥ 951,442	¥ 951,442	¥ 914,752	[1]	¥ 914,752	[1]	¥ 914,752	[1]	¥ 914,752	[1]	¥ 36,690	¥ 36,690	¥ 36,690
Net change																		(36,690)											(36,690)
Balance at end of fiscal year	¥ 6,621,371	¥ 5,857,095	¥ 4,647,024	¥ 312,651	¥ 410,368	¥ 453,576												¥ 914,752	¥ 951,442	¥ 951,442	¥ 914,752	[1]	¥ 914,752	[1]	¥ 914,752	[1]	¥ 914,752	[1]		¥ 36,690	¥ 36,690

[1] The aggregate amount and number of issued shares include the preferred stock in treasury which has been converted to common stock but not yet cancelled.

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Income taxes

12 Months Ended

Mar. 31, 2014

Income taxes

19. Income taxes

The following table presents the components of Income tax expense for the fiscal years ended March 31, 2012, 2013 and 2014:

	2012			2013			2014
	(in millions of yen)
Current:
Domestic		22,103			37,101			92,814
Foreign		32,714			10,754			42,919
Total current tax expense		54,817			47,855			135,733
Deferred:
Domestic		(36,777	)		(40,021	)		94,911
Foreign		(4,162	)		(3,810	)		(4,536	)
Total deferred tax expense		(40,939	)		(43,831	)		90,375
Total income tax expense		13,878			4,024			226,108

The preceding table does not reflect the tax effects of items recorded directly in Equity for the fiscal years ended March 31, 2012, 2013 and 2014. The detailed amounts recorded directly in Equity are as follows:

	2012		2013			2014
	(in millions of yen)
Unrealized net gains (losses) on available-for-sale securities:
Unrealized gains (losses)		29,925		235,274			161,269
Less: reclassification adjustments		18,249		(33,988	)		(70,228	)
Total		48,174		201,286			91,041
Pension liability adjustments:
Unrealized gains (losses)		2,367		34,171			71,646
Less: reclassification adjustments		8,992		5,913			2,442
Total		11,359		40,084			74,088
Total tax effect before allocation to noncontrolling interests		59,533		241,370			165,129

The following table shows a reconciliation of Income tax expense at the effective statutory tax rate to the actual income tax expense for the fiscal years ended March 31, 2012, 2013 and 2014:

	2012			2013			2014
	(in millions of yen, except tax rates)
Income before income tax expense (benefit)		662,835			885,180			726,343
Effective statutory tax rate		40.69	%		38.01	%		38.01	%
Income tax calculated at the statutory tax rate		269,708			336,457			276,083
Income not subject to tax		(18,295	)		(18,320	)		(22,354	)
Expenses not deductible for tax purposes		1,469			1,348			1,550
Tax rate differentials of subsidiaries		(4,142	)		(10,535	)		(1,611	)
Change in valuation allowance		(371,271	)		(1,352,597	)		(50,933	)
Change in undistributed earnings of subsidiaries		(7,118	)		12,233			932
Change in net operating loss carryforwards resulting from intercompany capital transactions		162			227			235
Expiration of net operating loss carryforwards		33,576			1,026,439			6,313
Effect of enacted change in tax rates		107,011	(1)		—			15,786	(2)
Other		2,778			8,772			107
Income tax expense (benefit)		13,878			4,024			226,108

Notes:

(1) On November 30, 2011, the National Diet of Japan approved two bills affecting the statutory tax rates of MHFG and its domestic subsidiaries. As a result, the statutory tax rate concerning MHFG’s tax returns for the fiscal years ended March 31, 2013 and 2014 has been reduced to 38.01% from the previous rate of 40.69%. Also, the rates for the fiscal year ending March 31, 2015 and for the fiscal years ending March 31, 2016 and thereafter will be 38.01% and 35.64%, respectively. The decrease of the Group’s balance of net deferred tax assets, reflecting such tax rate reductions, was recognized in Income tax expense in the fiscal year ended March 31, 2012.

(2) On March 20, 2014, the National Diet of Japan approved a bill affecting the statutory tax rates of MHFG and its domestic subsidiaries. As a result, the statutory tax rate concerning MHFG’s tax returns for the fiscal year ending March 31, 2015 will be reduced to 35.64% from the previous rate of 38.01%. The decrease of the Group’s balance of net deferred tax assets, reflecting such tax rate reductions, was recognized in Income tax expense in the fiscal year ended March 31, 2014.

The components of net deferred tax assets at March 31, 2013 and 2014 are as follows:

	2013			2014
	(in millions of yen)
Deferred tax assets:
Investments		889,305			724,038
Allowance for loan losses		337,453			266,595
Derivative financial instruments		—			29,002
Trading account assets		—			19,842
Net operating loss carryforwards		450,016			448,926
Other		264,661			204,304
		1,941,435			1,692,707
Valuation allowance		(584,665	)		(443,847	)
Deferred tax assets, net of valuation allowance		1,356,770			1,248,860
Deferred tax liabilities:
Available-for-sale securities		567,608			659,448
Prepaid pension cost and accrued pension liabilities		39,937			132,738
Undistributed earnings of subsidiaries		11,040			11,972
Premises and equipment		12,304			11,263
Derivative financial instruments		35,391			—
Trading account assets		11,101			—
Other		51,913			61,500
Deferred tax liabilities		729,294			876,921
Net deferred tax assets		627,476			371,939

Deferred tax assets and deferred tax liabilities within the same tax jurisdiction have been netted for presentation purposes in the consolidated balance sheets.

In assessing the realizability of deferred tax assets, management considered whether it was more likely than not that some portion or all of the deferred tax assets would not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considered the scheduled reversal of deferred tax liabilities, projected future taxable income, and tax planning strategies available in making this assessment. Based upon the level of historical taxable income and projections for future taxable income over the periods in which the deferred tax assets would be deductible, management believed it was more likely than not that the MHFG Group would realize the benefits of these deductible differences, net of the existing valuation allowances at March 31, 2013 and 2014.

At March 31, 2014, the MHFG Group had net operating loss carryforwards totaling ¥1,414 billion. These carryforwards are scheduled to expire as follows:

	Net operating loss carryforwards
	(in billions of yen)
Fiscal year ending March 31:
2015		—
2016		—
2017		—
2018		865
2019		8
2020 and thereafter		541
Total		1,414

Included in net operating loss carryforwards in the above table are MHFG’s carryforwards of ¥868 billion resulting mainly from intercompany capital transactions. The tax effect of these carryforwards is offset by a full valuation allowance.

The total amount of unrecognized tax benefits including ¥802 million, ¥563 million and ¥699 million of interest and penalties was ¥2,160 million, ¥1,454 million and ¥1,691 million at March 31, 2012, 2013 and 2014, respectively, which would, if recognized, affect the Group’s effective tax rate. The Group classifies interest and penalties accrued relating to unrecognized tax benefits as Income tax expense.

The following table is a roll-forward of unrecognized tax benefits for the fiscal years ended March 31, 2012, 2013 and 2014:

	2012			2013			2014
	(in millions of yen)
Total unrecognized tax benefits at beginning of fiscal year		1,829			2,160			1,454
Gross amount of increases (decreases) related to positions taken during prior years		362			(471	)		(6	)
Gross amount of increases related to positions taken during the current year		244			29			100
Amount of decreases related to settlements		(227	)		(559	)		—
Foreign exchange translation		(48	)		295			143
Total unrecognized tax benefits at end of fiscal year		2,160			1,454			1,691

The MHFG Group is currently subject to ongoing tax audits in some jurisdictions. The oldest years open to tax audits in Japan, the United States and the United Kingdom are 2006, 2002 and 2002, respectively. The MHFG Group does not anticipate that increases or decreases of unrecognized tax benefits within the next twelve months would have a material effect on its consolidated results of operations or financial condition.

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Information for Reportable Segments (Detail) (JPY ¥) In Billions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2012
Gross profits:
Net interest income (expense)	¥ 1,108.3	[1],[2],[3],[4]	¥ 1,075.9	[1],[2],[3]	¥ 1,088.3	[1]
Net noninterest income (expenses)	927.0	[1],[2],[3],[4]	1,095.8	[1],[2],[3]	914.8	[1]
Total	2,035.3	[1],[2],[3],[4]	2,171.7	[1],[2],[3]	2,003.1	[1]
General and administrative expenses	1,229.3	[1],[2],[3],[4]	1,171.0	[1],[2],[3]	1,206.3	[1]
Others	(61.7)	[1],[2],[3],[4]	(88.5)	[1],[2],[3]	(77.7)	[1]
Net business profits	744.3	[1],[2],[3],[4]	912.2	[1],[2],[3]	719.1	[1]
Others
Gross profits:
Net interest income (expense)	131.4	[1],[2],[3],[4]	(0.3)	[1],[2],[3]	(6.4)	[1]
Net noninterest income (expenses)	127.6	[1],[2],[3],[4]	57.7	[1],[2],[3]	54.8	[1]
Total	259.0	[1],[2],[3],[4]	57.4	[1],[2],[3]	48.4	[1]
General and administrative expenses	180.9	[1],[2],[3],[4]	40.8	[1],[2],[3]	40.1	[1]
Others	(2.7)	[1],[2],[3],[4]	(27.6)	[1],[2],[3]	(7.9)	[1]
Net business profits	75.4	[1],[2],[3],[4]	(11.0)	[1],[2],[3]	0.4	[1]
MizuhoTrust Banking Company Limited Consolidated
Gross profits:
Net interest income (expense)	40.2	[1],[2],[3],[4]	39.5	[1],[2],[3]	42.5	[1]
Net noninterest income (expenses)	108.1	[1],[2],[3],[4]	105.0	[1],[2],[3]	104.8	[1]
Total	148.3	[1],[2],[3],[4]	144.5	[1],[2],[3]	147.3	[1]
General and administrative expenses	90.9	[1],[2],[3],[4]	90.1	[1],[2],[3]	92.3	[1]
Others	(2.9)	[1],[2],[3],[4]	(3.5)	[1],[2],[3]	(3.7)	[1]
Net business profits	54.5	[1],[2],[3],[4]	50.9	[1],[2],[3]	51.3	[1]
Mizuho Securities Company Limited Consolidated
Gross profits:
Net interest income (expense)	2.9	[1],[2],[3],[4]
Net noninterest income (expenses)	283.9	[1],[2],[3],[4]
Total	286.8	[1],[2],[3],[4]
General and administrative expenses	246.2	[1],[2],[3],[4]
Net business profits	40.6	[1],[2],[3],[4]
Mizuho Bank Limited And Mizuho Corporate Bank Limited
Gross profits:
Net interest income (expense)	923.8		915.5		940.4
Net noninterest income (expenses)	460.3		647.1		540.1
Total	1,384.1		1,562.6		1,480.5
General and administrative expenses	791.1		765.5		801.3
Net business profits	593.0		797.1		679.2
Mizuho Bank Limited And Mizuho Corporate Bank Limited | Personal Banking
Gross profits:
Net interest income (expense)	218.5		219.2		224.3
Net noninterest income (expenses)	41.6		33.9		32.1
Total	260.1		253.1		256.4
General and administrative expenses	226.4		218.6		218.6
Net business profits	33.7		34.5		37.8
Mizuho Bank Limited And Mizuho Corporate Bank Limited | Retail banking
Gross profits:
Net interest income (expense)	80.0		83.3		95.1
Net noninterest income (expenses)	45.3		42.3		41.0
Total	125.3		125.6		136.1
General and administrative expenses	116.7		113.7		108.2
Net business profits	8.6		11.9		27.9
Mizuho Bank Limited And Mizuho Corporate Bank Limited | Corporate Banking (Large Corporations)
Gross profits:
Net interest income (expense)	172.7		155.8		168.4
Net noninterest income (expenses)	131.4		122.6		133.4
Total	304.1		278.4		301.8
General and administrative expenses	87.2		88.4		94.1
Net business profits	216.9		190.0		207.7
Mizuho Bank Limited And Mizuho Corporate Bank Limited | Corporate Banking
Gross profits:
Net interest income (expense)	103.3		106.6		121.3
Net noninterest income (expenses)	64.7		70.9		69.3
Total	168.0		177.5		190.6
General and administrative expenses	77.7		74.5		87.7
Net business profits	90.3		103.0		102.9
Mizuho Bank Limited And Mizuho Corporate Bank Limited | Financial Institution & Public Sector Business
Gross profits:
Net interest income (expense)	35.4		36.2		40.3
Net noninterest income (expenses)	22.3		24.2		24.4
Total	57.7		60.4		64.7
General and administrative expenses	29.0		26.5		26.1
Net business profits	28.7		33.9		38.6
Mizuho Bank Limited And Mizuho Corporate Bank Limited | Trading and others
Gross profits:
Net interest income (expense)	185.0		206.2		200.7
Net noninterest income (expenses)	15.2		248.5		153.0
Total	200.2		454.7		353.7
General and administrative expenses	171.6		177.2		206.3
Net business profits	28.6		277.5		147.4
Mizuho Bank Limited And Mizuho Corporate Bank Limited | International Banking
Gross profits:
Net interest income (expense)	128.9		108.2		90.3
Net noninterest income (expenses)	139.8		104.7		86.9
Total	268.7		212.9		177.2
General and administrative expenses	82.5		66.6		60.3
Net business profits	186.2		146.3		116.9
Former Mizuho Bank, Limited Consolidated
Gross profits:
Net interest income (expense)			550.6	[1],[2],[3]	583.9	[1]
Net noninterest income (expenses)			360.3	[1],[2],[3]	305.8	[1]
Total			910.9	[1],[2],[3]	889.7	[1]
General and administrative expenses			568.2	[1],[2],[3]	608.5	[1]
Others			(7.4)	[1],[2],[3]	(14.0)	[1]
Net business profits			335.3	[1],[2],[3]	267.2	[1]
Former Mizuho Bank, Limited Consolidated | Former Mizuho Bank, Limited Non-Consolidated
Gross profits:
Net interest income (expense)			513.8	[1],[2],[3]	545.4	[1]
Net noninterest income (expenses)			313.7	[1],[2],[3]	253.3	[1]
Total			827.5	[1],[2],[3]	798.7	[1]
General and administrative expenses			524.4	[1],[2],[3]	556.4	[1]
Net business profits			303.1	[1],[2],[3]	242.3	[1]
Former Mizuho Bank, Limited Consolidated | Former Mizuho Bank, Limited Non-Consolidated | Personal Banking
Gross profits:
Net interest income (expense)			219.2	[1],[2],[3]	224.3	[1]
Net noninterest income (expenses)			33.9	[1],[2],[3]	32.1	[1]
Total			253.1	[1],[2],[3]	256.4	[1]
General and administrative expenses			218.6	[1],[2],[3]	218.6	[1]
Net business profits			34.5	[1],[2],[3]	37.8	[1]
Former Mizuho Bank, Limited Consolidated | Former Mizuho Bank, Limited Non-Consolidated | Retail banking
Gross profits:
Net interest income (expense)			83.3	[1],[2],[3]	95.1	[1]
Net noninterest income (expenses)			42.3	[1],[2],[3]	41.0	[1]
Total			125.6	[1],[2],[3]	136.1	[1]
General and administrative expenses			113.7	[1],[2],[3]	108.2	[1]
Net business profits			11.9	[1],[2],[3]	27.9	[1]
Former Mizuho Bank, Limited Consolidated | Former Mizuho Bank, Limited Non-Consolidated | Corporate Banking (Large Corporations)
Gross profits:
Net interest income (expense)			14.9	[1],[2],[3]	17.8	[1]
Net noninterest income (expenses)			19.3	[1],[2],[3]	19.0	[1]
Total			34.2	[1],[2],[3]	36.8	[1]
General and administrative expenses			11.6	[1],[2],[3]	18.5	[1]
Net business profits			22.6	[1],[2],[3]	18.3	[1]
Former Mizuho Bank, Limited Consolidated | Former Mizuho Bank, Limited Non-Consolidated | Corporate Banking
Gross profits:
Net interest income (expense)			106.1	[1],[2],[3]	118.6	[1]
Net noninterest income (expenses)			70.7	[1],[2],[3]	68.2	[1]
Total			176.8	[1],[2],[3]	186.8	[1]
General and administrative expenses			73.2	[1],[2],[3]	86.4	[1]
Net business profits			103.6	[1],[2],[3]	100.4	[1]
Former Mizuho Bank, Limited Consolidated | Former Mizuho Bank, Limited Non-Consolidated | Financial Institution & Public Sector Business
Gross profits:
Net interest income (expense)			19.9	[1],[2],[3]	22.2	[1]
Net noninterest income (expenses)			11.0	[1],[2],[3]	8.6	[1]
Total			30.9	[1],[2],[3]	30.8	[1]
General and administrative expenses			14.3	[1],[2],[3]	14.5	[1]
Net business profits			16.6	[1],[2],[3]	16.3	[1]
Former Mizuho Bank, Limited Consolidated | Former Mizuho Bank, Limited Non-Consolidated | Trading and others
Gross profits:
Net interest income (expense)			70.4	[1],[2],[3]	67.4	[1]
Net noninterest income (expenses)			136.5	[1],[2],[3]	84.4	[1]
Total			206.9	[1],[2],[3]	151.8	[1]
General and administrative expenses			93.0	[1],[2],[3]	110.2	[1]
Net business profits			113.9	[1],[2],[3]	41.6	[1]
Former Mizuho Bank, Limited Consolidated | Former Mizuho Investors Securities Company Limited, Consolidated
Gross profits:
Net interest income (expense)					0.7	[1]
Net noninterest income (expenses)					43.9	[1]
Total					44.6	[1]
General and administrative expenses					40.9	[1]
Net business profits					3.7	[1]
Former Mizuho Bank, Limited Consolidated | Others
Gross profits:
Net interest income (expense)			36.8	[1],[2],[3]	37.8	[1]
Net noninterest income (expenses)			46.6	[1],[2],[3]	8.6	[1]
Total			83.4	[1],[2],[3]	46.4	[1]
General and administrative expenses			43.8	[1],[2],[3]	11.2	[1]
Others			(7.4)	[1],[2],[3]	(14.0)	[1]
Net business profits			32.2	[1],[2],[3]	21.2	[1]
Former Mizuho Corporate Bank, Limited Consolidated
Gross profits:
Net interest income (expense)			486.1	[1],[2],[3]	468.3	[1]
Net noninterest income (expenses)			572.8	[1],[2],[3]	449.4	[1]
Total			1,058.9	[1],[2],[3]	917.7	[1]
General and administrative expenses			471.9	[1],[2],[3]	465.4	[1]
Others			(50.0)	[1],[2],[3]	(52.1)	[1]
Net business profits			537.0	[1],[2],[3]	400.2	[1]
Former Mizuho Corporate Bank, Limited Consolidated | Others
Gross profits:
Net interest income (expense)			86.2	[1],[2],[3]	81.4	[1]
Net noninterest income (expenses)			10.4	[1],[2],[3]	10.9	[1]
Total			96.6	[1],[2],[3]	92.3	[1]
General and administrative expenses			33.7	[1],[2],[3]	27.6	[1]
Others			(50.0)	[1],[2],[3]	(52.0)	[1]
Net business profits			12.9	[1],[2],[3]	12.7	[1]
Former Mizuho Corporate Bank, Limited Consolidated | Former Mizuho Corporate Bank, Limited Non-consolidated
Gross profits:
Net interest income (expense)			401.7	[1],[2],[3]	395.0	[1]
Net noninterest income (expenses)			333.4	[1],[2],[3]	286.8	[1]
Total			735.1	[1],[2],[3]	681.8	[1]
General and administrative expenses			241.1	[1],[2],[3]	244.9	[1]
Net business profits			494.0	[1],[2],[3]	436.9	[1]
Former Mizuho Corporate Bank, Limited Consolidated | Former Mizuho Corporate Bank, Limited Non-consolidated | Corporate Banking (Large Corporations)
Gross profits:
Net interest income (expense)			140.9	[1],[2],[3]	150.6	[1]
Net noninterest income (expenses)			103.3	[1],[2],[3]	114.4	[1]
Total			244.2	[1],[2],[3]	265.0	[1]
General and administrative expenses			76.8	[1],[2],[3]	75.6	[1]
Net business profits			167.4	[1],[2],[3]	189.4	[1]
Former Mizuho Corporate Bank, Limited Consolidated | Former Mizuho Corporate Bank, Limited Non-consolidated | Corporate Banking
Gross profits:
Net interest income (expense)			0.5	[1],[2],[3]	2.7	[1]
Net noninterest income (expenses)			0.2	[1],[2],[3]	1.1	[1]
Total			0.7	[1],[2],[3]	3.8	[1]
General and administrative expenses			1.3	[1],[2],[3]	1.3	[1]
Net business profits			(0.6)	[1],[2],[3]	2.5	[1]
Former Mizuho Corporate Bank, Limited Consolidated | Former Mizuho Corporate Bank, Limited Non-consolidated | Financial Institution & Public Sector Business
Gross profits:
Net interest income (expense)			16.3	[1],[2],[3]	18.1	[1]
Net noninterest income (expenses)			13.2	[1],[2],[3]	15.8	[1]
Total			29.5	[1],[2],[3]	33.9	[1]
General and administrative expenses			12.2	[1],[2],[3]	11.6	[1]
Net business profits			17.3	[1],[2],[3]	22.3	[1]
Former Mizuho Corporate Bank, Limited Consolidated | Former Mizuho Corporate Bank, Limited Non-consolidated | Trading and others
Gross profits:
Net interest income (expense)			135.8	[1],[2],[3]	133.3	[1]
Net noninterest income (expenses)			112.0	[1],[2],[3]	68.6	[1]
Total			247.8	[1],[2],[3]	201.9	[1]
General and administrative expenses			84.2	[1],[2],[3]	96.1	[1]
Net business profits			163.6	[1],[2],[3]	105.8	[1]
Former Mizuho Corporate Bank, Limited Consolidated | Former Mizuho Corporate Bank, Limited Non-consolidated | International Banking
Gross profits:
Net interest income (expense)			108.2	[1],[2],[3]	90.3	[1]
Net noninterest income (expenses)			104.7	[1],[2],[3]	86.9	[1]
Total			212.9	[1],[2],[3]	177.2	[1]
General and administrative expenses			66.6	[1],[2],[3]	60.3	[1]
Net business profits			146.3	[1],[2],[3]	116.9	[1]
Former Mizuho Corporate Bank, Limited Consolidated | Former Mizuho Securities Company Limited Consolidated
Gross profits:
Net interest income (expense)					(8.1)	[1]
Net noninterest income (expenses)					151.7	[1]
Total					143.6	[1]
General and administrative expenses					192.9	[1]
Others					(0.1)	[1]
Net business profits					(49.4)	[1]
Former Mizuho Corporate Bank, Limited Consolidated | Mizuho Securities Company Limited Consolidated
Gross profits:
Net interest income (expense)			(1.8)	[1],[2],[3]
Net noninterest income (expenses)			229.0	[1],[2],[3]
Total			227.2	[1],[2],[3]
General and administrative expenses			197.1	[1],[2],[3]
Net business profits			30.1	[1],[2],[3]
Mizuho Bank, Limited Consolidated
Gross profits:
Net interest income (expense)	933.8	[1],[2],[3],[4]
Net noninterest income (expenses)	407.4	[1],[2],[3],[4]
Total	1,341.2	[1],[2],[3],[4]
General and administrative expenses	711.3	[1],[2],[3],[4]
Others	(56.1)	[1],[2],[3],[4]
Net business profits	573.8	[1],[2],[3],[4]
Mizuho Bank, Limited Consolidated | Others
Gross profits:
Net interest income (expense)	133.7	[1],[2],[3],[4]
Net noninterest income (expenses)	9.2	[1],[2],[3],[4]
Total	142.9	[1],[2],[3],[4]
General and administrative expenses	52.3	[1],[2],[3],[4]
Others	(56.1)	[1],[2],[3],[4]
Net business profits	34.5	[1],[2],[3],[4]
Mizuho Bank, Limited Consolidated | Mizuho Bank, Limited Non-Consolidated
Gross profits:
Net interest income (expense)	800.1	[1],[2],[3],[4]
Net noninterest income (expenses)	398.2	[1],[2],[3],[4]
Total	1,198.3	[1],[2],[3],[4]
General and administrative expenses	659.0	[1],[2],[3],[4]
Net business profits	539.3	[1],[2],[3],[4]
Mizuho Bank, Limited Consolidated | Mizuho Bank, Limited Non-Consolidated | Personal Banking
Gross profits:
Net interest income (expense)	165.0	[1],[2],[3],[4]
Net noninterest income (expenses)	32.9	[1],[2],[3],[4]
Total	197.9	[1],[2],[3],[4]
General and administrative expenses	171.3	[1],[2],[3],[4]
Net business profits	26.6	[1],[2],[3],[4]
Mizuho Bank, Limited Consolidated | Mizuho Bank, Limited Non-Consolidated | Retail banking
Gross profits:
Net interest income (expense)	59.8	[1],[2],[3],[4]
Net noninterest income (expenses)	34.8	[1],[2],[3],[4]
Total	94.6	[1],[2],[3],[4]
General and administrative expenses	87.8	[1],[2],[3],[4]
Net business profits	6.8	[1],[2],[3],[4]
Mizuho Bank, Limited Consolidated | Mizuho Bank, Limited Non-Consolidated | Corporate Banking (Large Corporations)
Gross profits:
Net interest income (expense)	170.2	[1],[2],[3],[4]
Net noninterest income (expenses)	126.7	[1],[2],[3],[4]
Total	296.9	[1],[2],[3],[4]
General and administrative expenses	83.8	[1],[2],[3],[4]
Net business profits	213.1	[1],[2],[3],[4]
Mizuho Bank, Limited Consolidated | Mizuho Bank, Limited Non-Consolidated | Corporate Banking
Gross profits:
Net interest income (expense)	77.9	[1],[2],[3],[4]
Net noninterest income (expenses)	51.8	[1],[2],[3],[4]
Total	129.7	[1],[2],[3],[4]
General and administrative expenses	58.8	[1],[2],[3],[4]
Net business profits	70.9	[1],[2],[3],[4]
Mizuho Bank, Limited Consolidated | Mizuho Bank, Limited Non-Consolidated | Financial Institution & Public Sector Business
Gross profits:
Net interest income (expense)	30.7	[1],[2],[3],[4]
Net noninterest income (expenses)	20.1	[1],[2],[3],[4]
Total	50.8	[1],[2],[3],[4]
General and administrative expenses	25.1	[1],[2],[3],[4]
Net business profits	25.7	[1],[2],[3],[4]
Mizuho Bank, Limited Consolidated | Mizuho Bank, Limited Non-Consolidated | Trading and others
Gross profits:
Net interest income (expense)	167.6	[1],[2],[3],[4]
Net noninterest income (expenses)	(7.9)	[1],[2],[3],[4]
Total	159.7	[1],[2],[3],[4]
General and administrative expenses	149.7	[1],[2],[3],[4]
Net business profits	10.0	[1],[2],[3],[4]
Mizuho Bank, Limited Consolidated | Mizuho Bank, Limited Non-Consolidated | International Banking
Gross profits:
Net interest income (expense)	128.9	[1],[2],[3],[4]
Net noninterest income (expenses)	139.8	[1],[2],[3],[4]
Total	268.7	[1],[2],[3],[4]
General and administrative expenses	82.5	[1],[2],[3],[4]
Net business profits	¥ 186.2	[1],[2],[3],[4]

[1] As for the fiscal year ended March 31, 2012, "Others (h)", "Others (o)", and "Others (q)" include elimination of transactions between consolidated subsidiaries. As for the fiscal year ended March 31, 2013, "Others (g)", "Others (n)", and "Others (p)" include elimination of transactions between consolidated subsidiaries. As for the fiscal year ended March 31, 2014, "Others (h)" and "Others (k)" include elimination of transactions between consolidated subsidiaries.

[2] Beginning on April 1, 2013, MHSC was turned into a directly-held subsidiary of MHFG. As for the fiscal year ended March 31, 2013, "MHSC (Consolidated) (m)" represents the performance of the former MHSC for the first three quarters and the new MHSC for the fourth quarter, while "Others (g)" includes the performance of the former MHIS for the first three quarters. As for the fiscal year ended March 31, 2014, "MHSC (Consolidated) (j)" represents the performance of the new MHSC, in light of the merger of the former MHSC and the former MHIS conducted in January 2013.

[3] Beginning on April 1, 2013, the MHFG Group moved to a new group operational structure and realigned the reportable segments to reflect the new organizational structure. In addition, new allocation methods have been applied to the calculation of "Gross profits" and "General and administrative expenses". Figures for the fiscal year ended March 31, 2013 have been reclassified under the new allocation methods. The effect of the change of allocation methods is not significant.

[4] As for the fiscal year ended March 31, 2014, "MHBK (Non-consolidated)" represents the sum of the performance of the former MHCB for the first quarter and the new MHBK for the second, third, and fourth quarters, while "Others (h)" includes the performance of the former MHBK for the first quarter, in light of the merger of the former MHBK and the former MHCB conducted in July 2013.

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Carrying Amounts and Classification of Assets and Liabilities on MHFG Group's Balance Sheets that Relate to its Variable Interests in Significant Unconsolidated VIEs (Detail) (JPY ¥)	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Assets on balance sheets related to unconsolidated VIEs:
Trading account assets	¥ 27,408,259,000,000	¥ 34,066,555,000,000
Loans	72,858,777,000,000	69,060,526,000,000
Total	175,699,346,000,000	178,746,994,000,000	166,361,600,000,000
Liabilities on balance sheets and maximum exposure to loss related to unconsolidated VIEs:
Payables under securities lending transactions	6,265,875,000,000	11,496,178,000,000
Total	169,077,975,000,000	172,889,899,000,000
Maximum exposure to loss	626,000,000,000	545,000,000,000
Unconsolidated VIEs
Assets on balance sheets related to unconsolidated VIEs:
Trading account assets	29,000,000,000	46,000,000,000
Investments	222,000,000,000	206,000,000,000
Loans	316,000,000,000	308,000,000,000
Total	567,000,000,000	560,000,000,000
Liabilities on balance sheets and maximum exposure to loss related to unconsolidated VIEs:
Payables under securities lending transactions	4,000,000,000	14,000,000,000
Total	4,000,000,000	14,000,000,000
Maximum exposure to loss	¥ 626,000,000,000	¥ 545,000,000,000

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Gross Carrying Amount Accumulated Amortization and Net Carrying Amount of Intangible Assets (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Intangible Assets by Major Class [Line Items]
Gross carrying amount	¥ 76,757		¥ 76,312
Gross carrying amount	9,207		9,450
Net carrying amount	9,207		9,450
Gross carrying amount	85,964		85,762
Accumulated amortization	27,017		21,288
Net carrying amount	49,740		55,024
Net carrying amount	58,947		64,474
Customer relationships
Intangible Assets by Major Class [Line Items]
Gross carrying amount	73,949	[1]	73,949	[1]
Accumulated amortization	24,865	[1]	19,238	[1]
Net carrying amount	49,084	[1]	54,711	[1]
Other
Intangible Assets by Major Class [Line Items]
Gross carrying amount	2,808		2,363
Accumulated amortization	2,152		2,050
Net carrying amount	¥ 656		¥ 313

[1] Customer relationships were acquired by the merger of MHSC and Shinko on May 7, 2009. See Note 1 "Basis of presentation and summary of significant accounting policies" for further information.

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Pledged assets and collateral (Tables)

12 Months Ended

Mar. 31, 2014

Schedule of Assets Pledged as Collateral

The following amounts, by balance sheet classification, have been pledged as collateral for borrowings and for other purposes at March 31, 2013 and 2014:

	2013		2014
	(in billions of yen)
Interest-bearing deposits in other banks		28		38
Trading account assets		13,752		10,271
Available-for-sale securities		15,939		13,353
Loans		8,860		8,796
Other assets		900		677
Total		39,479		33,135

Schedule of Secured Borrowings

The associated liabilities collateralized by the above assets at March 31, 2013 and 2014 are summarized below:

	2013		2014
	(in billions of yen)
Deposits		259		878
Call money and funds purchased		1,580		1,708
Payables under repurchase agreements		7,726		6,884
Payables under securities lending transactions		11,092		6,237
Other short-term borrowings		5,626		405
Long-term debt		321		5,632
Total		26,604		21,744

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Long-Term Debt with Original Maturities of More Than One Year (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Debt Instrument [Line Items]
Obligations under capital leases	¥ 26,680	¥ 24,406
Loan participation borrowings	79,014	62,332
Senior borrowings and bonds	5,805,634	4,784,010
Subordinated borrowings and bonds	3,942,613	3,931,475
Total	¥ 9,853,941	¥ 8,802,223

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Subsequent events

12 Months Ended

Mar. 31, 2014

Subsequent events

34. Subsequent events

Redemption of preferred securities

On June 30, 2014, preferred securities, issued by the MHFG Group’s overseas special purpose companies, were redeemed in full. These special purpose companies are not consolidated in accordance with ASC 810 since the Group is not the primary beneficiary. Thus, the redemption of preferred securities did not reduce Noncontrolling interests in consolidated subsidiaries, but reduced Long-term debt in the Group’s consolidated balance sheets. The following table describes the details of the redeemed preferred securities.

Issuer	Aggregate redemption amount		Reason for the redemption
	(in millions)
Mizuho Capital Investment (USD) 2 Limited		$850		Arrival of optional redemption date
Mizuho Capital Investment (JPY) 5 Limited		Series A ¥139,500		Arrival of optional redemption date

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Contractual Maturities of Long-term Debt (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Debt Instrument [Line Items]
2015	¥ 1,222,317
2016	1,190,985
2017	1,776,546
2018	1,025,441
2019	483,888
2020 and thereafter	4,154,764
Total	¥ 9,853,941	¥ 8,802,223

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Net income	¥ 500,235	¥ 881,156	¥ 648,957
Other comprehensive income (loss), net of tax:
Unrealized net gains (losses) on available-for-sale securities, net of tax (Note 3)	137,128	368,896	105,285
Foreign currency translation adjustments, net of tax	76,104	87,651	(7,814)
Pension liability adjustments, net of tax (Note 20)	136,942	78,676	39,687
Total other comprehensive income (loss), net of tax	350,174	535,223	137,158
Total comprehensive income	850,409	1,416,379	786,115
Less: Total comprehensive income (loss) attributable to noncontrolling interests	12,045	8,558	(10,570)
Total comprehensive income attributable to MHFG shareholders	¥ 838,364	¥ 1,407,821	¥ 796,685

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Analysis Age of Recorded Investment in Financing Receivables that Past Due (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 days past due	¥ 53,030		¥ 64,584
60-89 days past due	30,543		36,291
90 days or more past due	152,632		217,196
Total past due	236,205		318,071
Current	73,387,335		69,627,393
Total	73,623,540	[1]	69,945,464	[1]
Domestic
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 days past due	52,943		64,457
60-89 days past due	30,520		35,406
90 days or more past due	141,697		206,064
Total past due	225,160		305,927
Current	54,713,147		54,274,386
Total	54,938,307		54,580,313
Domestic | Manufacturing
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 days past due	2,834		3,788
60-89 days past due	2,193		1,911
90 days or more past due	14,452		32,830
Total past due	19,479		38,529
Current	8,006,453		8,040,342
Total	8,025,932		8,078,871
Domestic | Construction and real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 days past due	5,412		11,815
60-89 days past due	3,440		4,038
90 days or more past due	44,852		69,333
Total past due	53,704		85,186
Current	7,150,890		7,392,667
Total	7,204,594		7,477,853
Domestic | Services
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 days past due	2,185		3,385
60-89 days past due	1,235		1,916
90 days or more past due	10,304		13,829
Total past due	13,724		19,130
Current	3,943,018		3,952,881
Total	3,956,742		3,972,011
Domestic | Wholesale and retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 days past due	3,205		2,771
60-89 days past due	4,561		2,851
90 days or more past due	12,180		16,483
Total past due	19,946		22,105
Current	5,330,761		5,333,869
Total	5,350,707		5,355,974
Domestic | Transportation and communications
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 days past due	832		711
60-89 days past due	573		558
90 days or more past due	3,265		3,687
Total past due	4,670		4,956
Current	3,242,724		3,142,150
Total	3,247,394		3,147,106
Domestic | Banks and other financial institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
60-89 days past due	1
90 days or more past due	5		6
Total past due	6		6
Current	3,460,141		3,142,992
Total	3,460,147		3,142,998
Domestic | Government and public institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Current	6,734,451		6,907,426
Total	6,734,451		6,907,426
Domestic | Other industries
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 days past due	9
60-89 days past due	29		18
90 days or more past due	34		122
Total past due	72		140
Current	4,983,749		4,521,854
Total	4,983,821	[2]	4,521,994	[2]
Domestic | Individuals
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 days past due	38,466		41,987
60-89 days past due	18,488		24,114
90 days or more past due	56,605		69,774
Total past due	113,559		135,875
Current	11,860,960		11,840,205
Total	11,974,519		11,976,080
Foreign
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 days past due	87		127
60-89 days past due	23		885
90 days or more past due	10,935		11,132
Total past due	11,045		12,144
Current	18,674,188		15,353,007
Total	18,685,233		15,365,151
Foreign | Banks and other financial institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	4,610,141		4,088,651
Foreign | Government and public institutions
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	¥ 883,004		¥ 595,911

[1] Amounts represent loan balances before deducting unearned income and deferred loan fees.

[2] Other industries of domestic and Other of foreign include trade receivables and lease receivables of consolidated VIEs.

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Investments

12 Months Ended

Mar. 31, 2014

Investments

3. Investments

The amortized cost, gross unrealized gains and losses, and fair value of available-for-sale and held-to-maturity securities at March 31, 2013 and 2014 are as follows:

	Amortized cost		Gross unrealized gains		Gross unrealized losses		Fair value
	(in millions of yen)
2013
Available-for-sale securities:
Debt securities:
Japanese government bonds		30,709,499		79,378		5,677		30,783,200
Japanese local government bonds		239,695		4,109		47		243,757
U.S. Treasury bonds and federal agency securities		177,438		623		36		178,025
Other foreign government bonds		596,305		1,914		94		598,125
Agency mortgage-backed securities (1)		986,646		20,496		1,429		1,005,713
Residential mortgage-backed securities		430,325		13,889		2,131		442,083
Commercial mortgage-backed securities		246,169		7,487		3,528		250,128
Japanese corporate bonds and other debt securities (2)		2,197,270		22,582		5,288		2,214,564
Foreign corporate bonds and other debt securities (3)		542,958		17,768		1,803		558,923
Equity securities (marketable)		1,699,475		1,440,102		144		3,139,433
Total		37,825,780		1,608,348		20,177		39,413,951
Held-to-maturity securities:
Debt securities:
Japanese government bonds		3,000,403		20,023		82		3,020,344
Total		3,000,403		20,023		82		3,020,344
2014
Available-for-sale securities:
Debt securities:
Japanese government bonds		22,039,640		20,063		3,727		22,055,976
Japanese local government bonds		241,985		2,783		106		244,662
U.S. Treasury bonds and federal agency securities		158,344		434		4,297		154,481
Other foreign government bonds		719,281		2,356		455		721,182
Agency mortgage-backed securities (1)		955,291		13,288		7,705		960,874
Residential mortgage-backed securities		318,955		14,757		1,707		332,005
Commercial mortgage-backed securities		159,289		3,032		1,417		160,904
Japanese corporate bonds and other debt securities (2)		2,015,045		16,316		3,284		2,028,077
Foreign corporate bonds and other debt securities (3)		559,947		10,755		2,193		568,509
Equity securities (marketable)		1,667,669		1,761,025		6,603		3,422,091
Total		28,835,446		1,844,809		31,494		30,648,761
Held-to-maturity securities:
Debt securities:
Japanese government bonds		4,040,083		17,954		220		4,057,817
Total		4,040,083		17,954		220		4,057,817

Notes :

(1) Agency mortgage-backed securities presented in the above table consist of U.S. agency securities and Japanese agency securities, of which the fair values were ¥143,954 million and ¥861,759 million, respectively, at March 31, 2013, and ¥105,553 million and ¥855,321 million, respectively, at March 31, 2014. U.S. agency securities primarily consist of Government National Mortgage Association or Ginnie Mae securities, which are guaranteed by the United States government. All Japanese agency securities are mortgage-backed securities issued by Japan Housing Finance Agency, a Japanese government-sponsored enterprise.

(2) Other debt securities presented in the above table primarily consist of certificates of deposit (“CDs”) and asset-backed securities (“ABS”), of which the total fair values were ¥185,497 million at March 31,2013, and ¥214,488 million at March 31, 2014.

(3) Other debt securities presented in the above table primarily consist of CDs, ABS, and collateral loan obligations (“CLO”), of which the total fair values were ¥243,633 million at March 31,2013, and ¥178,055 million at March 31, 2014.

The amortized cost and fair value of available-for-sale and held-to-maturity debt securities at March 31, 2014 by contractual maturity are shown in the table below. Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without penalties. Securities not due at a single maturity date and securities embedded with call or prepayment options, such as mortgage-backed securities, are included in the table below based on their contractual maturities.

Amortized cost	Due in one year or less		Due after one year through five years		Due after five years through ten years		Due after ten years		Total
	(in millions of yen)
Available-for-sale securities:
Debt securities:
Japanese government bonds		5,926,354		13,876,023		2,237,263		—		22,039,640
Japanese local government bonds		30,346		130,751		80,108		780		241,985
U.S. Treasury bonds and federal agency securities		43,475		75,005		39,864		—		158,344
Other foreign government bonds		507,140		211,949		—		192		719,281
Agency mortgage-backed securities		—		—		—		955,291		955,291
Residential mortgage-backed securities		—		—		—		318,955		318,955
Commercial mortgage-backed securities		4,085		123,455		31,749		—		159,289
Japanese corporate bonds and other debt securities		369,682		1,131,664		326,861		186,838		2,015,045
Foreign corporate bonds and other debt securities		221,916		251,536		83,865		2,630		559,947
Total		7,102,998		15,800,383		2,799,710		1,464,686		27,167,777
Held-to-maturity securities:
Debt securities:
Japanese government bonds		600,047		3,080,346		359,690		—		4,040,083
Total		600,047		3,080,346		359,690		—		4,040,083

Fair value	Due in one year or less		Due after one year through five years		Due after five years through ten years		Due after ten years		Total
	(in millions of yen)
Available-for-sale securities:
Debt securities:
Japanese government bonds		5,926,642		13,882,371		2,246,963		—		22,055,976
Japanese local government bonds		30,384		131,438		81,952		888		244,662
U.S. Treasury bonds and federal agency securities		43,907		72,142		38,432		—		154,481
Other foreign government bonds		507,577		213,355		—		250		721,182
Agency mortgage-backed securities		—		—		—		960,874		960,874
Residential mortgage-backed securities		—		—		—		332,005		332,005
Commercial mortgage-backed securities		4,087		124,981		31,836		—		160,904
Japanese corporate bonds and other debt securities		370,157		1,137,145		329,033		191,742		2,028,077
Foreign corporate bonds and other debt securities		222,527		253,142		89,625		3,215		568,509
Total		7,105,281		15,814,574		2,817,841		1,488,974		27,226,670
Held-to-maturity securities:
Debt securities:
Japanese government bonds		601,750		3,091,769		364,298		—		4,057,817
Total		601,750		3,091,769		364,298		—		4,057,817

In accordance with ASC 320, “Investments—Debt and Equity Securities” (“ASC 320”), for debt securities, if an entity has the intent to sell a debt security or more likely than not will be required to sell a debt security before recovery of its amortized cost basis, the full amount of an other-than-temporary impairment loss shall be recognized immediately through earnings. Other than either case described above, an entity must evaluate expected cash flows to be received and determine if a credit loss exists, and if so, the amount of an other-than-temporary impairment related to the credit loss shall be recognized in earnings, while the remaining decline in fair value shall be recognized in other comprehensive income, net of applicable taxes. For equity securities, if an equity security is deemed other-than-temporarily impaired, it shall be written down to fair value, with the full decline recognized in earnings.

The MHFG Group performs periodic reviews to identify impaired securities. Impairment is evaluated considering the length of time and extent to which the fair value has been below cost, the financial condition and near-term prospects of the issuer, as well as the MHFG Group’s ability and intent to hold the investments for a reasonable period of time until a forecasted recovery of fair value or maturity.

For the fiscal years ended March 31, 2012, 2013 and 2014, the MHFG Group recognized in earnings the other-than-temporary impairment on available-for-sale securities of ¥117,029 million, ¥76,393 million and ¥5,344 million, respectively, of which ¥7,238 million, ¥4,085 million and ¥1,151 million, respectively, were on debt securities and ¥109,791 million, ¥72,308 million and ¥4,193 million, respectively, were on equity securities. No impairment losses were recognized on held-to-maturity securities for the periods.

The other-than-temporary impairment losses for debt securities were mainly attributable to the decline in the fair value of commercial mortgage-backed securities (“CMBS”) that the MHFG Group had the intent to sell. In accordance with ASC 320-10-35-33A and ASC 320-10-35-34B, the other-than-temporary impairment of these securities was recognized in earnings. There has never been any instance related to credit losses recognized in earnings on debt securities where a portion of an other-than-temporary impairment was recognized in other comprehensive income.

The other-than-temporary impairment losses for equity securities were mainly attributable to the decline in the fair value of Japanese equity securities. Certain equity securities were determined not to be other-than-temporarily impaired based on the evaluation of the following factors: (1) the severity and duration of the impairments, (2) the financial condition and near-term prospects of the issuers, and (3) the MHFG Group’s ability and intent to hold those investments for a reasonable period of time sufficient for a forecasted recovery of fair value.

The following tables show the gross unrealized losses and fair value of available-for-sale and held-to-maturity securities, aggregated by the length of time that individual securities have been in a continuous unrealized loss position, at March 31, 2013 and 2014:

	Less than 12 months				12 months or more				Total
	Fair value		Gross unrealized losses		Fair value		Gross unrealized losses		Fair value		Gross unrealized losses
	(in millions of yen)
2013
Available-for-sale securities:
Debt securities:
Japanese government bonds		5,059,495		1,520		406,684		4,157		5,466,179		5,677
Japanese local government bonds		27,243		47		—		—		27,243		47
U.S. Treasury bonds and federal agency securities		69,168		36		—		—		69,168		36
Other foreign government bonds		207,942		94		—		—		207,942		94
Agency mortgage-backed securities (1)		90,832		1,429		—		—		90,832		1,429
Residential mortgage-backed securities		12,778		9		122,363		2,122		135,141		2,131
Commercial mortgage-backed securities		7,159		111		122,588		3,417		129,747		3,528
Japanese corporate bonds and other debt securities		88,146		333		222,516		4,955		310,662		5,288
Foreign corporate bonds and other debt securities		54,599		114		65,417		1,689		120,016		1,803
Equity securities (marketable)		8,488		128		699		16		9,187		144
Total		5,625,850		3,821		940,267		16,356		6,566,117		20,177
Held-to-maturity securities:
Debt securities:
Japanese government bonds		199,730		82		—		—		199,730		82
Total		199,730		82		—		—		199,730		82
2014
Available-for-sale securities:
Debt securities:
Japanese government bonds		10,526,182		2,871		880,520		856		11,406,702		3,727
Japanese local government bonds		48,471		90		12,730		16		61,201		106
U.S. Treasury bonds and federal agency securities		66,865		2,865		38,432		1,432		105,297		4,297
Other foreign government bonds		203,026		275		7,654		180		210,680		455
Agency mortgage-backed securities (2)		102,904		2,348		76,369		5,357		179,273		7,705
Residential mortgage-backed securities		9,771		137		78,938		1,570		88,709		1,707
Commercial mortgage-backed securities		11,133		117		43,170		1,300		54,303		1,417
Japanese corporate bonds and other debt securities		130,020		359		60,230		2,925		190,250		3,284
Foreign corporate bonds and other debt securities		122,563		1,846		33,960		347		156,523		2,193
Equity securities (marketable)		132,590		6,603		10		—		132,600		6,603
Total		11,353,525		17,511		1,232,013		13,983		12,585,538		31,494
Held-to-maturity securities:
Debt securities:
Japanese government bonds		9,962		40		199,670		180		209,632		220
Total		9,962		40		199,670		180		209,632		220

Notes :

(1) Agency mortgage-backed securities presented in the above table represent U.S. agency securities. U.S. agency securities primarily consist of Government National Mortgage Association or Ginnie Mae securities, which are guaranteed by the United States government.

(2) Agency mortgage-backed securities presented in the above table consist of U.S. agency securities and Japanese agency securities, of which the fair values were ¥105,208 million and ¥74,065 million, respectively, at March 31, 2014. All Japanese agency securities are mortgage-backed securities issued by Japan Housing Finance Agency, a Japanese government-sponsored enterprise.

The unrealized losses on investments in a continuous loss position for 12 months or more at March 31, 2014 were attributed mainly to Agency mortgage-backed securities and Japanese corporate bonds and other debt securities. The MHFG Group did not intend to sell those securities and it was not more likely than not that the Group would be required to sell them before recovery of their amortized cost basis. Those securities were not considered other-than-temporarily impaired. As to CMBS and Japanese corporate bonds and other debt securities with similar credit risks as the other-than-temporarily impaired securities, and Agency mortgage-backed securities and Residential mortgage-backed securities (“RMBS”), the Group determined that it was expected to recover their entire amortized cost basis, after considering various factors such as the extent to which their fair values were below their amortized costs, the external and/or internal ratings and the present values of cash flows expected to be collected. As to Japanese government bonds, since the unrealized losses had not resulted from credit deterioration, but primarily from changes in interest rates, their entire amortized cost basis was expected to be collected.

For the fiscal years ended March 31, 2012, 2013 and 2014, the gross realized gains on sales of available-for-sale securities were ¥100,371 million, ¥193,298 million and ¥231,955 million, respectively, and the gross realized losses on those sales were ¥28,840 million, ¥21,422 million and ¥29,387 million, respectively.

Other investments

The following table summarizes the composition of Other investments:

	2013		2014
	(in millions of yen)
Equity method investments		225,696		196,015
Investments held by consolidated investment companies		75,780		70,599
Other equity interests		536,659		526,075
Total		838,135		792,689

Equity method investments

Investments in investees over which the MHFG Group has the ability to exert significant influence are accounted for using the equity method of accounting. For the fiscal years ended March 31, 2012, 2013 and 2014, the earnings (losses) from equity method investments were ¥10,807 million, (¥2,192) million and ¥27,975 million, respectively. Such investments included marketable equity securities carried at ¥68,289 million and ¥78,458 million, at March 31, 2013 and 2014, respectively. The aggregate market values of these marketable equity securities were ¥111,543 million and ¥96,471 million, respectively.

The MHFG Group’s proportionate share of the total outstanding common shares in Orient Corporation (“Orico”) as of March 31, 2014 was 22.2% and the Group and a certain third party still hold convertible preferred shares of Orico, and if fully converted, the Group’s proportionate share of the total outstanding common shares in Orico would increase to 58.0%.

Investments held by consolidated investment companies

The MHFG Group consolidates certain investment companies over which it has control through either ownership or other means. Investment companies are subject to specialized industry accounting which requires investments to be carried at fair value, with changes in fair value recorded in earnings. The MHFG Group maintains this specialized industry accounting for investments held by consolidated investment companies, which consist of marketable and non-marketable investments.

Other equity interests

Other equity interests consist primarily of non-marketable equity securities outside the scope of ASC 320, of which the fair values are not readily determinable. The MHFG Group has neither significant influence nor control over the investees. Each of these securities is stated at acquisition cost, with an other-than-temporary impairment, if any, included in earnings. The MHFG Group monitors the status of each investee, including its credit rating, to determine whether impairment losses should be recognized.

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Net Trading Gains and Losses (Parenthetical) (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2012
Schedule of Trading Securities and Other Trading Assets [Line Items]
Gains (losses) recorded in income	¥ (148,643)		¥ 59,446		¥ 102,939
Credit-related contracts
Schedule of Trading Securities and Other Trading Assets [Line Items]
Gains (losses) recorded in income	(7,761)	[1]	(6,877)	[1]	(5,575)	[1]
Loans related to credit derivatives | Credit-related contracts
Schedule of Trading Securities and Other Trading Assets [Line Items]
Gains (losses) recorded in income	¥ (8,660)		¥ (6,703)		¥ (3,391)

[1] Amounts include the net loss of ¥3,391 million, ¥6,703 million and ¥8,660 million on the credit derivatives hedging the credit risk of loans during the fiscal years ended March 31, 2012, 2013 and 2014, respectively.

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Contractual Amounts With Regard to Undrawn Commitments (Detail) (JPY ¥) In Billions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance-sheet instruments, contractual amounts of the undrawn commitments	¥ 60,013		¥ 59,709
Commitments to Extend Credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance-sheet instruments, contractual amounts of the undrawn commitments	59,402	[1]	59,101	[1]
Commercial letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Off-balance-sheet instruments, contractual amounts of the undrawn commitments	¥ 611		¥ 608

[1] Commitments to extend credit include commitments to invest in securities.

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Income taxes (Tables)

12 Months Ended

Mar. 31, 2014

Schedule of Components of Income Tax Expense (Benefit)

The following table presents the components of Income tax expense for the fiscal years ended March 31, 2012, 2013 and 2014:

	2012			2013			2014
	(in millions of yen)
Current:
Domestic		22,103			37,101			92,814
Foreign		32,714			10,754			42,919
Total current tax expense		54,817			47,855			135,733
Deferred:
Domestic		(36,777	)		(40,021	)		94,911
Foreign		(4,162	)		(3,810	)		(4,536	)
Total deferred tax expense		(40,939	)		(43,831	)		90,375
Total income tax expense		13,878			4,024			226,108

Comprehensive Income Tax (Expense) Benefit Components

The detailed amounts recorded directly in Equity are as follows:

	2012		2013			2014
	(in millions of yen)
Unrealized net gains (losses) on available-for-sale securities:
Unrealized gains (losses)		29,925		235,274			161,269
Less: reclassification adjustments		18,249		(33,988	)		(70,228	)
Total		48,174		201,286			91,041
Pension liability adjustments:
Unrealized gains (losses)		2,367		34,171			71,646
Less: reclassification adjustments		8,992		5,913			2,442
Total		11,359		40,084			74,088
Total tax effect before allocation to noncontrolling interests		59,533		241,370			165,129

Schedule of Effective Income Tax Rate Reconciliation

The following table shows a reconciliation of Income tax expense at the effective statutory tax rate to the actual income tax expense for the fiscal years ended March 31, 2012, 2013 and 2014:

	2012			2013			2014
	(in millions of yen, except tax rates)
Income before income tax expense (benefit)		662,835			885,180			726,343
Effective statutory tax rate		40.69	%		38.01	%		38.01	%
Income tax calculated at the statutory tax rate		269,708			336,457			276,083
Income not subject to tax		(18,295	)		(18,320	)		(22,354	)
Expenses not deductible for tax purposes		1,469			1,348			1,550
Tax rate differentials of subsidiaries		(4,142	)		(10,535	)		(1,611	)
Change in valuation allowance		(371,271	)		(1,352,597	)		(50,933	)
Change in undistributed earnings of subsidiaries		(7,118	)		12,233			932
Change in net operating loss carryforwards resulting from intercompany capital transactions		162			227			235
Expiration of net operating loss carryforwards		33,576			1,026,439			6,313
Effect of enacted change in tax rates		107,011	(1)		—			15,786	(2)
Other		2,778			8,772			107
Income tax expense (benefit)		13,878			4,024			226,108

Notes:

(1) On November 30, 2011, the National Diet of Japan approved two bills affecting the statutory tax rates of MHFG and its domestic subsidiaries. As a result, the statutory tax rate concerning MHFG’s tax returns for the fiscal years ended March 31, 2013 and 2014 has been reduced to 38.01% from the previous rate of 40.69%. Also, the rates for the fiscal year ending March 31, 2015 and for the fiscal years ending March 31, 2016 and thereafter will be 38.01% and 35.64%, respectively. The decrease of the Group’s balance of net deferred tax assets, reflecting such tax rate reductions, was recognized in Income tax expense in the fiscal year ended March 31, 2012.

(2) On March 20, 2014, the National Diet of Japan approved a bill affecting the statutory tax rates of MHFG and its domestic subsidiaries. As a result, the statutory tax rate concerning MHFG’s tax returns for the fiscal year ending March 31, 2015 will be reduced to 35.64% from the previous rate of 38.01%. The decrease of the Group’s balance of net deferred tax assets, reflecting such tax rate reductions, was recognized in Income tax expense in the fiscal year ended March 31, 2014.

Schedule of Deferred Tax Assets and Liabilities

The components of net deferred tax assets at March 31, 2013 and 2014 are as follows:

	2013			2014
	(in millions of yen)
Deferred tax assets:
Investments		889,305			724,038
Allowance for loan losses		337,453			266,595
Derivative financial instruments		—			29,002
Trading account assets		—			19,842
Net operating loss carryforwards		450,016			448,926
Other		264,661			204,304
		1,941,435			1,692,707
Valuation allowance		(584,665	)		(443,847	)
Deferred tax assets, net of valuation allowance		1,356,770			1,248,860
Deferred tax liabilities:
Available-for-sale securities		567,608			659,448
Prepaid pension cost and accrued pension liabilities		39,937			132,738
Undistributed earnings of subsidiaries		11,040			11,972
Premises and equipment		12,304			11,263
Derivative financial instruments		35,391			—
Trading account assets		11,101			—
Other		51,913			61,500
Deferred tax liabilities		729,294			876,921
Net deferred tax assets		627,476			371,939

Summary of Operating Loss Carryforwards

These carryforwards are scheduled to expire as follows:

	Net operating loss carryforwards
	(in billions of yen)
Fiscal year ending March 31:
2015		—
2016		—
2017		—
2018		865
2019		8
2020 and thereafter		541
Total		1,414

Reconciliation Of Unrecognized Tax Benefits

The following table is a roll-forward of unrecognized tax benefits for the fiscal years ended March 31, 2012, 2013 and 2014:

	2012			2013			2014
	(in millions of yen)
Total unrecognized tax benefits at beginning of fiscal year		1,829			2,160			1,454
Gross amount of increases (decreases) related to positions taken during prior years		362			(471	)		(6	)
Gross amount of increases related to positions taken during the current year		244			29			100
Amount of decreases related to settlements		(227	)		(559	)		—
Foreign exchange translation		(48	)		295			143
Total unrecognized tax benefits at end of fiscal year		2,160			1,454			1,691

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Loans - Additional Information (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net losses on sales of loans	¥ 2,041	¥ 853	¥ 4,576
Impaired Financing Receivables with No Related Allowance
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired loans partially charged off	24,957	51,720
Valuation losses related to loans held for sale accounted for at the lower of cost or fair value
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net losses on sales of loans, amount attributable to valuation losses related to loans held for sale accounted for at the lower of cost or fair value	¥ 1,510	¥ 54	¥ 3,435

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Interest Rates and Maturities of Senior Borrowings and Bonds and Subordinated Borrowings and Bonds (Detail) (JPY ¥) In Millions, unless otherwise specified																									12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014 Senior borrowings and bonds	Mar. 31, 2013 Senior borrowings and bonds	Mar. 31, 2014 Senior borrowings and bonds Fixed Rate Denominated in Japanese yen	Mar. 31, 2013 Senior borrowings and bonds Fixed Rate Denominated in Japanese yen	Mar. 31, 2014 Senior borrowings and bonds Fixed Rate Denominated in U.S. dollars	Mar. 31, 2013 Senior borrowings and bonds Fixed Rate Denominated in U.S. dollars	Mar. 31, 2014 Senior borrowings and bonds Fixed Rate Denominated in other currencies	Mar. 31, 2013 Senior borrowings and bonds Fixed Rate Denominated in other currencies	Mar. 31, 2014 Senior borrowings and bonds Floating Rate Denominated in Japanese yen	Mar. 31, 2013 Senior borrowings and bonds Floating Rate Denominated in Japanese yen	Mar. 31, 2014 Senior borrowings and bonds Floating Rate Denominated in U.S. dollars	Mar. 31, 2013 Senior borrowings and bonds Floating Rate Denominated in U.S. dollars	Mar. 31, 2014 Senior borrowings and bonds Floating Rate Denominated in other currencies	Mar. 31, 2013 Senior borrowings and bonds Floating Rate Denominated in other currencies	Mar. 31, 2014 Subordinated borrowings and bonds	Mar. 31, 2013 Subordinated borrowings and bonds	Mar. 31, 2014 Subordinated borrowings and bonds Fixed Rate Denominated in Japanese yen	Mar. 31, 2013 Subordinated borrowings and bonds Fixed Rate Denominated in Japanese yen	Mar. 31, 2014 Subordinated borrowings and bonds Fixed Rate Denominated in U.S. dollars	Mar. 31, 2013 Subordinated borrowings and bonds Fixed Rate Denominated in U.S. dollars	Mar. 31, 2014 Subordinated borrowings and bonds Floating Rate Denominated in Japanese yen	Mar. 31, 2013 Subordinated borrowings and bonds Floating Rate Denominated in Japanese yen	Mar. 31, 2014 Minimum Senior borrowings and bonds Fixed Rate Denominated in Japanese yen		Mar. 31, 2014 Minimum Senior borrowings and bonds Fixed Rate Denominated in U.S. dollars		Mar. 31, 2014 Minimum Senior borrowings and bonds Fixed Rate Denominated in other currencies		Mar. 31, 2014 Minimum Senior borrowings and bonds Floating Rate Denominated in Japanese yen		Mar. 31, 2014 Minimum Senior borrowings and bonds Floating Rate Denominated in U.S. dollars		Mar. 31, 2014 Minimum Senior borrowings and bonds Floating Rate Denominated in other currencies		Mar. 31, 2014 Minimum Subordinated borrowings and bonds Fixed Rate Denominated in Japanese yen		Mar. 31, 2014 Minimum Subordinated borrowings and bonds Fixed Rate Denominated in U.S. dollars		Mar. 31, 2014 Minimum Subordinated borrowings and bonds Floating Rate Denominated in Japanese yen		Mar. 31, 2014 Maximum Senior borrowings and bonds Fixed Rate Denominated in Japanese yen		Mar. 31, 2014 Maximum Senior borrowings and bonds Fixed Rate Denominated in U.S. dollars		Mar. 31, 2014 Maximum Senior borrowings and bonds Fixed Rate Denominated in other currencies		Mar. 31, 2014 Maximum Senior borrowings and bonds Floating Rate Denominated in Japanese yen		Mar. 31, 2014 Maximum Senior borrowings and bonds Floating Rate Denominated in U.S. dollars		Mar. 31, 2014 Maximum Senior borrowings and bonds Floating Rate Denominated in other currencies		Mar. 31, 2014 Maximum Subordinated borrowings and bonds Fixed Rate Denominated in Japanese yen		Mar. 31, 2014 Maximum Subordinated borrowings and bonds Fixed Rate Denominated in U.S. dollars		Mar. 31, 2014 Maximum Subordinated borrowings and bonds Floating Rate Denominated in Japanese yen
Debt Instrument [Line Items]
Interest rates																									0.00%	[1]	0.00%	[1]	0.02%	[1]	0.00%	[1]	0.00%	[1]	0.05%	[1]	1.09%	[1]	4.30%	[1]	0.98%	[1]	10.00%	[1]	7.49%	[1]	5.40%	[1]	18.10%	[1]	15.60%	[1]	0.58%	[1]	4.74%	[1]	14.91%	[1]	2.61%	[1]
Maturities																									2014-04	[2]	2014-04	[2]	2015-01	[2]	2014-04	[2]	2014-04	[2]	2014-04	[2]	2014-04	[2]	2014-04	[2]	2019-06	[2]	2044-03	[2]	2043-07	[2]	2029-03	[2]	2044-03	[2]	2028-03	[2]	2015-01	[2]	Perpetual	[2]	Perpetual	[2]	Perpetual	[2]
Borrowings and bonds	¥ 9,748,247	¥ 8,715,485	¥ 5,805,634	¥ 4,784,010	¥ 3,557,508	¥ 2,741,475	¥ 604,281	¥ 520,714	¥ 25,687	¥ 683	¥ 1,063,111	¥ 1,065,708	¥ 532,199	¥ 426,515	¥ 22,848	¥ 28,915	¥ 3,942,613	¥ 3,931,475	¥ 3,249,999	¥ 3,393,092	¥ 613,609	¥ 419,383	¥ 79,005	¥ 119,000

[1] The interest rates disclosed reflect the range of contractual rates in effect at March 31, 2014.

[2] Maturity information disclosed is the range of maturities at March 31, 2014.

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Foreign activities (Tables)

12 Months Ended

Mar. 31, 2014

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas

The following table presents consolidated income statement and total assets information by major geographic area. Foreign activities are defined as business transactions that involve customers residing outside of Japan. However, as the MHFG Group’s operations are highly integrated globally, estimates and assumptions have been made for an allocation among the geographic areas.

	Japan		Americas		Europe		Asia/Oceania excluding Japan, and others		Total
	(in billions of yen)
Fiscal year ended March 31, 2012:
Total revenue (1)		1,965.7		251.3		132.0		178.2		2,527.2
Total expenses (2)		1,561.2		104.0		102.9		96.3		1,864.4
Income before income tax expense		404.5		147.3		29.1		81.9		662.8
Net income		419.2		131.2		28.1		70.5		649.0
Total assets at end of fiscal year		124,443.6		25,368.9		8,868.5		7,680.6		166,361.6
Fiscal year ended March 31, 2013:
Total revenue (1)		2,190.7		383.7		125.8		162.6		2,862.8
Total expenses (2)		1,668.9		140.5		48.4		119.8		1,977.6
Income before income tax expense		521.8		243.2		77.4		42.8		885.2
Net income		524.7		252.3		75.0		29.2		881.2
Total assets at end of fiscal year		126,768.8		31,168.8		10,591.2		10,218.2		178,747.0
Fiscal year ended March 31, 2014:
Total revenue (1)		1,783.9		349.9		152.9		218.9		2,505.6
Total expenses (2)		1,397.3		144.6		96.3		141.1		1,779.3
Income before income tax expense		386.6		205.3		56.6		77.8		726.3
Net income		198.9		189.7		54.0		57.6		500.2
Total assets at end of fiscal year		124,557.7		27,527.8		10,784.5		12,829.3		175,699.3

Notes:

(1) Total revenue is comprised of Interest and dividend income and Noninterest income.

(2) Total expenses are comprised of Interest expense, Provision (credit) for loan losses and Noninterest expenses.

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Pension and other employee benefit plans

12 Months Ended

Mar. 31, 2014

Pension and other employee benefit plans

20. Pension and other employee benefit plans

Severance indemnities and pension plans

MHFG and certain subsidiaries sponsor and offer their employees other than directors and corporate auditors, contributory and non-contributory defined benefit plans. Under these plans, employees are provided with lump-sum cash payments upon leaving the company. The amount of benefits under each plan is principally determined based on the position, the length of service and the reason for retirement. When employees meet certain conditions including the length of service, they may opt to receive annuity payments instead of lump-sum payments at retirement. MHFG and certain subsidiaries also offer special termination benefits to former employees whose contributions during their careers were deemed meritorious and to those with particular circumstances.

Certain foreign offices and subsidiaries have defined contribution plans and/or defined benefit plans, of which disclosures are combined with those for domestic benefit plans, as they are not significant.

MHFG and certain subsidiaries have several defined contribution plans. The costs recognized in respect of contributions to the plans for the fiscal years ended March 31, 2012, 2013 and 2014 were ¥2,129 million, ¥1,968 million and ¥2,487 million, respectively.

Pension plans are not fully integrated among subsidiaries of MHFG and plan assets are managed separately by each plan.

Net periodic benefit cost and funded status

Net periodic benefit cost of the severance indemnities and pension plans for the fiscal years ended March 31, 2012, 2013 and 2014 includes the following components:

	2012			2013			2014
	(in millions of yen)
Service cost-benefits earned during the fiscal year		27,734			30,422			33,429
Interest costs on projected benefit obligation		24,267			23,186			20,341
Expected return on plan assets		(28,234	)		(32,237	)		(37,047	)
Amortization of prior service benefit		(318	)		(319	)		(195	)
Amortization of net actuarial loss (gain)		25,595			16,936			7,039
Special termination benefits (Note)		14,115			5,454			5,429
Net periodic benefit cost		63,159			43,442			28,996

Note: The amount for the fiscal year ended March 31, 2012 includes special termination benefits of ¥9,828 million pertaining to MHSC’s voluntary retirement scheme.

Other changes in plan assets and benefit obligations recognized in other comprehensive income (loss) before-tax for the fiscal years ended March 31, 2013 and 2014 were summarized as follows:

	2013			2014
	(in millions of yen)
Net actuarial gain (loss)		103,683			204,506
Amortization of net actuarial loss (gain)		16,936			7,039
Prior service benefit (cost)		(1,782	)		—
Amortization of prior service benefit		(319	)		(195	)
Total recognized in other comprehensive income (loss) before-tax		118,518			211,350

As of March 31, 2014, the amounts in Accumulated other comprehensive income (loss), which will be amortized as prior service benefit and actuarial loss over the next fiscal year, are estimated to be ¥195 million and ¥137 million, respectively.

Weighted-average assumptions used to determine benefit obligations and net periodic benefit cost are as follows:

	2012			2013			2014
Weighted-average assumptions used to determine benefit obligations at fiscal year end:
Discount rates		1.73	%		1.44	%		0.96	%
Rates of increase in future compensation levels		2.33-6.46	%		2.31-6.57	%		2.00-4.80	%
Weighted-average assumptions used to determine net periodic benefit cost during the year:
Discount rates		1.83	%		1.73	%		1.44	%
Rates of increase in future compensation levels		2.28-6.15	%		2.33-6.46	%		2.31-6.57	%
Expected rates of return on plan assets		2.27	%		2.40	%		2.42	%

In estimating the discount rates, the MHFG Group uses interest rates on high-quality fixed-income government and corporate bonds that received a rating of AA(Aa) or higher from rating agencies. The durations of such bonds closely match those of the benefit obligations. During the fiscal year ended March 31, 2014, the Group has changed the calculation method of the discount rates and has revised the benefit formula for some major plans to refine the estimate of benefit obligations. As a result of these refinements, total benefit obligations of the Group, at March 31, 2014, decreased by ¥110,744 million. Assumed discount rates are reevaluated at each measurement date. The expected rate of return for each asset category is based primarily on various aspects of the long-term prospects for the economy that include historical performance and the market environment.

The following table sets forth the combined funded status and amounts recognized in the accompanying consolidated balance sheets at March 31, 2013 and 2014 for the plans of MHFG and its subsidiaries:

	2013			2014
	(in millions of yen)
Change in benefit obligation:
Benefit obligation at beginning of fiscal year		1,343,714			1,399,123
Service cost		30,422			33,429
Interest cost		23,186			20,341
Plan participants’ contributions		1,184			1,181
Amendments		1,782			—
Actuarial loss (gain)		63,140			(70,214	)
Foreign exchange translation		2,209			4,854
Benefits paid		(49,593	)		(49,905	)
Lump-sum payments		(16,921	)		(18,119	)
Benefit obligation at end of fiscal year		1,399,123			1,320,690
Change in plan assets:
Fair value of plan assets at beginning of fiscal year		1,323,163			1,527,744
Actual return (negative return) on plan assets		199,341			171,970
Foreign exchange translation		1,783			4,128
Employer contributions		51,866			50,936
Plan participants’ contributions		1,184			1,181
Benefits paid		(49,593	)		(49,905	)
Fair value of plan assets at end of fiscal year		1,527,744			1,706,054
Funded status		128,621			385,364
Amounts recognized in the consolidated balance sheets consist of:
Prepaid pension cost		153,414			403,654
Accrued pension liability		(24,793	)		(18,290	)
Net amount recognized		128,621			385,364
Amounts recognized in Accumulated other comprehensive income (loss) before-tax consist of:
Prior service benefit (cost)		(440	)		(635	)
Net actuarial gain (loss)		(236,359	)		(24,814	)
Net amount recognized		(236,799	)		(25,449	)

Note: The aggregated accumulated benefit obligations of these plans were ¥1,364,786 million and ¥1,319,771 million, respectively, as of March 31, 2013 and 2014. The defined benefit plans generally employ a multi-variable and non-linear formula based upon rank and years of service. Employees with service in excess of one year are qualified to receive lump-sum severance indemnities.

The following table shows the projected benefit obligations and the fair value of plan assets for the plans of MHFG and its subsidiaries with projected benefit obligations in excess of plan assets, and the accumulated benefit obligations and the fair value of plan assets for the plans with accumulated benefit obligations in excess of plan assets at March 31, 2013 and 2014:

	2013		2014
	(in millions of yen)
Plans with projected benefit obligations in excess of plan assets:
Projected benefit obligation		95,789		40,509
Fair value of plan assets		70,690		21,898
Plans with accumulated benefit obligations in excess of plan assets:
Accumulated benefit obligation		91,210		39,590
Fair value of plan assets		70,690		21,898

Note: The plans with projected benefit obligations in excess of plan assets include those with accumulated benefit obligations in excess of plan assets.

Investment policies and asset allocation

In managing plan assets, the MHFG Group determines the appropriate levels of risk that the Group can assume under the given circumstances to maximize the investment returns from a long-term perspective while ensuring that the sufficient funds will be available to plan participants and beneficiaries. Generally, the investment returns are relative to the risks involved. In considering the maximum levels of risk that the MHFG Group can assume, it primarily considers the following factors; the employers’ burden of maintaining the benefit plans based on the design of the plans and future plan contributions, the age distribution of the plan participants and beneficiaries, the financial conditions of the employers, and the employers’ ability to absorb future variability in plan premiums. The long-term asset allocation to each asset category such as Japanese equity securities, Japanese debt securities, foreign equity securities and foreign debt securities is determined based upon the optimal portfolio, which is estimated to yield the maximum return within the range of acceptable level of risk. Additionally, the asset allocation is reviewed whenever there are large fluctuations in pension plan liabilities caused by modifications of pension plans, or there are changes in the market environment. When selecting an investment in each asset category, the MHFG Group takes into consideration credit standing of an investee, concentration of credit risk to a certain investee, liquidity of a financial instrument, etc. The investments in each asset category are further diversified across funds, strategies, sectors, etc. There is no significant investment in a single investee except Japanese government bonds.

Certain subsidiaries of MHFG established employee retirement benefit trusts and transferred their assets to the trusts as plan assets. These assets are separated from the employer’s proprietary assets for the payment to the plan beneficiaries. The assets held in these trusts are primarily Japanese equity securities and have been entrusted directly to qualified trustees including trust banks.

MHFG and certain subsidiaries’ target allocation for the plan assets excluding those of the employee retirement benefit trusts at March 31, 2014 is as follows:

Asset category	Asset ratio
Japanese equity securities		5.00	%
Japanese debt securities		44.00	%
Foreign equity securities		26.00	%
Foreign debt securities		10.00	%
General account of life insurance companies		14.00	%
Other		1.00	%
Total		100.00	%

Note: General account of life insurance companies is a contract with life insurance companies which guarantees payments of principal and predetermined interest rate.

Fair value of plan assets

The following table presents the fair value of plan assets of MHFG and its subsidiaries at March 31, 2013 and 2014, by asset class. For the detailed information on fair value measurements, including descriptions of Level 1, 2 and 3 of the fair value hierarchy and the valuation methodologies, see Note 28 “Fair value”.

	2013										2014
	Level 1			Level 2			Level 3		Total		Level 1			Level 2			Level 3		Total
	(in billions of yen)
Japanese equity securities:
Common stocks (1)		716			—			—		716		782			—			—		782
Pooled funds (2)		—			86			—		86		5			51			—		56
Japanese debt securities:
Government bonds		179			—			—		179		229			—			—		229
Pooled funds (2)		—			46			—		46		—			68			—		68
Other		—			7			—		7		—			24			—		24
Foreign equity securities:
Common stocks		54			2			—		56		96			3			—		99
Pooled funds (2)		—			92			—		92		15			139			—		154
Foreign debt securities:
Government bonds		71			4			—		75		63			6			—		69
Pooled funds (2)		—			46			—		46		—			9			—		9
Other		—			23			—		23		—			15			—		15
General account of life insurance companies (3)		—			111			—		111		—			111			—		111
Hedge funds		—			—			1		1		—			—			2		2
Other		92	(4)		(2	)(5)		—		90		91	(4)		(3	) (5)		—		88
Total assets at fair value		1,112			415			1		1,528		1,281			423			2		1,706

Notes:

(1) This class includes equity securities held in the employee retirement benefit trusts of ¥681 billion and ¥782 billion at March 31, 2013 and 2014, respectively, which are well-diversified across industries.

(2) These classes primarily include pension investment fund trusts. Investments in these classes are generally measured at their net asset values per share and can be redeemable within a short-term period upon request.

(3) Investments in this class are measured at conversion value.

(4) Amounts primarily include cash and short-term assets carried at fair value.

(5) Amounts primarily include foreign exchange contracts carried at fair value.

Amounts of actual returns on and purchases and sales of Level 3 assets during the fiscal years ended March 31, 2013 and 2014 were not significant.

Contributions

A contribution of approximately ¥49 billion is expected to be paid to the pension plans in the fiscal year ending March 31, 2015, based on the current funded status and expected asset return assumptions.

Estimated future benefit payments

The following table presents forecasted benefit payments including the effect of expected future service for the fiscal years indicated:

	(in millions of yen)
Fiscal year ending March 31:
2015		65,570
2016		68,183
2017		70,083
2018		71,558
2019		72,543
2020-2024		355,295

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Changes in Number of Issued Shares of Common Stock (Detail)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Class of Stock [Line Items]
Balance at beginning of fiscal year	24,164,864,477	24,048,165,727	21,782,185,320
Issuance of new shares of common stock by conversion of Eleventh series class XI preferred stock	99,020,710	116,698,750	151,921,540
Issuance of new shares of common stock by exercise of stock acquisition rights			4,748,000
Issuance of new shares of common stock for stock exchanges			2,109,310,867
Balance at end of fiscal year	24,263,885,187	24,164,864,477	24,048,165,727

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Noncontrolling Interests in Consolidated Subsidiaries - Additional Information (Detail)	Mar. 31, 2012
Mizuho Trust & Banking Company Limited
Noncontrolling Interest [Line Items]
Voting equity interests in subsidiaries	30.15%
The Former Mizuho Securities Company Limited
Noncontrolling Interest [Line Items]
Voting equity interests in subsidiaries	40.80%
The Former Mizuho Investors Securities Company Limited
Noncontrolling Interest [Line Items]
Voting equity interests in subsidiaries	46.02%
Bank Subsidiaries
Noncontrolling Interest [Line Items]
Voting interest transferred	5.34%

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Reconciliation of Income Tax Expense at Effective Statutory Tax Rate to Actual Income Tax Expense (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013	Mar. 31, 2012
Reconciliation of Statutory Federal Tax Rate [Line Items]
Income before income tax expense (benefit)	¥ 726,343		¥ 885,180	¥ 662,835
Effective statutory tax rate	38.01%		38.01%	40.69%
Income tax calculated at the statutory tax rate	276,083		336,457	269,708
Income not subject to tax	(22,354)		(18,320)	(18,295)
Expenses not deductible for tax purposes	1,550		1,348	1,469
Tax rate differentials of subsidiaries	(1,611)		(10,535)	(4,142)
Change in valuation allowance	(50,933)		(1,352,597)	(371,271)
Change in undistributed earnings of subsidiaries	932		12,233	(7,118)
Change in net operating loss carryforwards resulting from intercompany capital transactions	235		227	162
Expiration of net operating loss carryforwards	6,313		1,026,439	33,576
Effect of enacted change in tax rates	15,786	[1]		107,011	[2]
Other	107		8,772	2,778
Income tax expense (benefit)	¥ 226,108		¥ 4,024	¥ 13,878

[1] On March 20, 2014, the National Diet of Japan approved a bill affecting the statutory tax rates of MHFG and its domestic subsidiaries. As a result, the statutory tax rate concerning MHFG's tax returns for the fiscal year ending March 31, 2015 will be reduced to 35.64% from the previous rate of 38.01%. The decrease of the Group's balance of net deferred tax assets, reflecting such tax rate reductions, was recognized in Income tax expense in the fiscal year ended March 31, 2014.

[2] On November 30, 2011, the National Diet of Japan approved two bills affecting the statutory tax rates of MHFG and its domestic subsidiaries. As a result, the statutory tax rate concerning MHFG's tax returns for the fiscal years ended March 31, 2013 and 2014 has been reduced to 38.01% from the previous rate of 40.69%. Also, the rates for the fiscal year ending March 31, 2015 and for the fiscal years ending March 31, 2016 and thereafter will be 38.01% and 35.64%, respectively. The decrease of the Group's balance of net deferred tax assets, reflecting such tax rate reductions, was recognized in Income tax expense in the fiscal year ended March 31, 2012.

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Capital Adequacy Ratios of Former MHCB and Former MHBK (Parenthetical) (Detail) (JPY ¥) In Billions, unless otherwise specified	1 Months Ended
	Apr. 30, 2013
Mizuho Corporate Bank Limited
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Dividend payment	¥ 424.4
Mizuho Bank Limited
Japan Gaap Schedule Of Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Dividend payment	¥ 125.7

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Condensed Statements of Cash Flows Parent Company Only (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities:
Net income	¥ 498,484	¥ 875,412	¥ 656,389
Net cash provided by (used in) operating activities	5,951,308	(1,297,988)	(1,789,431)
Cash flows from investing activities:
Net cash provided by (used in) investing activities	417,303	(6,321,832)	(1,842,893)
Cash flows from financing activities:
Net change in short-term borrowings	(724,788)	(7,251,033)	(1,261,955)
Proceeds from issuance of common stock			5
Purchases of treasury stock	(37,013)	(7)	(2,560)
Dividends paid	(152,163)	(152,514)	(215,902)
Net cash provided by (used in) financing activities	(5,972,005)	7,639,859	2,965,844
Net increase (decrease) in cash and due from banks	428,437	51,815	(667,904)
Cash and due from banks at beginning of fiscal year	1,268,442	1,216,627	1,884,531
Cash and due from banks at end of fiscal year	1,696,879	1,268,442	1,216,627
Parent Company
Cash flows from operating activities:
Net income	498,484	875,412	656,389
Adjustments and other	(222,940)	(685,149)	(644,977)
Net cash provided by (used in) operating activities	275,544	190,263	11,412
Cash flows from investing activities:
Payments for purchases of securities of subsidiaries			(212)
Net change in other investing activities	2,631	1,570	80
Net cash provided by (used in) investing activities	2,631	1,570	(132)
Cash flows from financing activities:
Net change in short-term borrowings	(90,000)	(40,000)	60,000
Proceeds from issuance of common stock			146,499
Purchases of treasury stock	(37,013)	(7)	(2,560)
Dividends paid	(152,163)	(152,542)	(215,937)
Net change in other financing activities	968	749	730
Net cash provided by (used in) financing activities	(278,208)	(191,800)	(11,268)
Net increase (decrease) in cash and due from banks	(33)	33	12
Cash and due from banks at beginning of fiscal year	200	167	155
Cash and due from banks at end of fiscal year	¥ 167	¥ 200	¥ 167

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Amortized Cost Gross Unrealized Gains and Losses and Fair Value of Available-for-Sale and Held-to-Maturity Securities (Detail) (JPY ¥) In Millions, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized cost, available-for-sale securities	¥ 28,835,446		¥ 37,825,780
Gross unrealized gains, available-for-sale securities	1,844,809		1,608,348
Gross unrealized losses, available-for-sale securities	31,494		20,177
Fair value, available-for-sale securities	30,648,761		39,413,951
Amortized cost, held-to-maturity securities	4,040,083		3,000,403
Gross unrealized gains, held-to-maturity securities	17,954		20,023
Gross unrealized losses, held-to-maturity securities	220		82
Fair value, held-to-maturity securities	4,057,817		3,020,344
Debt securities | Japanese government bonds
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized cost, available-for-sale securities	22,039,640		30,709,499
Gross unrealized gains, available-for-sale securities	20,063		79,378
Gross unrealized losses, available-for-sale securities	3,727		5,677
Fair value, available-for-sale securities	22,055,976		30,783,200
Amortized cost, held-to-maturity securities	4,040,083		3,000,403
Gross unrealized gains, held-to-maturity securities	17,954		20,023
Gross unrealized losses, held-to-maturity securities	220		82
Fair value, held-to-maturity securities	4,057,817		3,020,344
Debt securities | Japanese corporate bonds and other debt securities
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized cost, available-for-sale securities	2,015,045		2,197,270
Gross unrealized gains, available-for-sale securities	16,316		22,582
Gross unrealized losses, available-for-sale securities	3,284		5,288
Fair value, available-for-sale securities	2,028,077	[1]	2,214,564	[1]
Debt securities | Japanese local government bonds
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized cost, available-for-sale securities	241,985		239,695
Gross unrealized gains, available-for-sale securities	2,783		4,109
Gross unrealized losses, available-for-sale securities	106		47
Fair value, available-for-sale securities	244,662		243,757
Debt securities | U.S. Treasury bonds and federal agency securities
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized cost, available-for-sale securities	158,344		177,438
Gross unrealized gains, available-for-sale securities	434		623
Gross unrealized losses, available-for-sale securities	4,297		36
Fair value, available-for-sale securities	154,481		178,025
Debt securities | Foreign corporate bonds and other debt securities
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized cost, available-for-sale securities	559,947		542,958
Gross unrealized gains, available-for-sale securities	10,755		17,768
Gross unrealized losses, available-for-sale securities	2,193		1,803
Fair value, available-for-sale securities	568,509	[2]	558,923	[2]
Debt securities | Agency mortgage-backed securities
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized cost, available-for-sale securities	955,291		986,646
Gross unrealized gains, available-for-sale securities	13,288		20,496
Gross unrealized losses, available-for-sale securities	7,705		1,429
Fair value, available-for-sale securities	960,874	[3]	1,005,713	[3]
Debt securities | Residential mortgage-backed securities
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized cost, available-for-sale securities	318,955		430,325
Gross unrealized gains, available-for-sale securities	14,757		13,889
Gross unrealized losses, available-for-sale securities	1,707		2,131
Fair value, available-for-sale securities	332,005		442,083
Debt securities | Commercial mortgage-backed securities
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized cost, available-for-sale securities	159,289		246,169
Gross unrealized gains, available-for-sale securities	3,032		7,487
Gross unrealized losses, available-for-sale securities	1,417		3,528
Fair value, available-for-sale securities	160,904		250,128
Debt securities | Other foreign government bonds
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized cost, available-for-sale securities	719,281		596,305
Gross unrealized gains, available-for-sale securities	2,356		1,914
Gross unrealized losses, available-for-sale securities	455		94
Fair value, available-for-sale securities	721,182		598,125
Equity securities (marketable)
Summary of Investments, Other than Investments in Related Parties, Reportable Data [Line Items]
Amortized cost, available-for-sale securities	1,667,669		1,699,475
Gross unrealized gains, available-for-sale securities	1,761,025		1,440,102
Gross unrealized losses, available-for-sale securities	6,603		144
Fair value, available-for-sale securities	¥ 3,422,091		¥ 3,139,433

[1] Other debt securities presented in the above table primarily consist of certificates of deposit ("CDs") and asset-backed securities ("ABS"), of which the total fair values were ¥185,497 million at March 31,2013, and ¥214,488 million at March 31, 2014.

[2] Other debt securities presented in the above table primarily consist of CDs, ABS, and collateral loan obligations ("CLO"), of which the total fair values were ¥243,633 million at March 31,2013, and ¥178,055 million at March 31, 2014.

[3] Agency mortgage-backed securities presented in the above table consist of U.S. agency securities and Japanese agency securities, of which the fair values were ¥143,954 million and ¥861,759 million, respectively, at March 31, 2013, and ¥105,553 million and ¥855,321 million, respectively, at March 31, 2014. U.S. agency securities primarily consist of Government National Mortgage Association or Ginnie Mae securities, which are guaranteed by the United States government. All Japanese agency securities are mortgage-backed securities issued by Japan Housing Finance Agency, a Japanese government-sponsored enterprise.

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Gains and Losses on Derivatives Not Designated or Qualifying as Hedges (Parenthetical) (Detail) (JPY ¥) In Millions, unless otherwise specified	12 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2012
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recorded in income	¥ (148,643)		¥ 59,446		¥ 102,939
Credit-related contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recorded in income	(7,761)	[1]	(6,877)	[1]	(5,575)	[1]
Loans related to credit derivatives | Credit-related contracts
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recorded in income	¥ (8,660)		¥ (6,703)		¥ (3,391)

[1] Amounts include the net loss of ¥3,391 million, ¥6,703 million and ¥8,660 million on the credit derivatives hedging the credit risk of loans during the fiscal years ended March 31, 2012, 2013 and 2014, respectively.

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Business segment information

12 Months Ended

Mar. 31, 2014

Business segment information

31. Business segment information

Under U.S. GAAP, companies report segment information based on the way management disaggregates the company for making operating decisions. The MHFG Group’s operating segments are based on the nature of the products and services provided, the type of customer and the Group’s management organization. The business segment information set forth below is derived from the internal management reporting systems used by management to measure the performance of the Group’s business segments. The management measures the performance of each of the operating segments primarily in terms of “net business profits” in accordance with internal managerial accounting rules and practices. Net business profits is used in Japan as a measure of the profitability of core banking operations, and is defined as gross profits (or the sum of net interest income, fiduciary income, net fee and commission income, net trading income and net other operating income) less general and administrative expenses. Measurement by net business profits is required for regulatory reporting to the Financial Services Agency. Therefore, the format and information are presented primarily on the basis of Japanese GAAP and are not consistent with the consolidated financial statements prepared in accordance with U.S. GAAP. A reconciliation is provided for the segments’ total net business profits with Income before income tax expense under U.S. GAAP.

Beginning on April 1, 2013, the MHFG Group moved to a new group operational structure and established ten business units such as Personal Banking, Retail Banking, Corporate Banking (Large Corporations), etc., and head-office coordination divisions to determine strategies and initiatives across the group-wide banking, trust banking, securities, and other business areas, based on the ten business units across MHBK (the former MHBK and the former MHCB merged on July 1, 2013), MHTB, MHSC, etc. The MHFG Group realigned the reportable segments to reflect the new organizational structure.

The MHFG Group engages in banking, trust banking, securities, and other businesses through its subsidiaries and affiliates. As these subsidiaries and affiliates are in different industries and regulatory environments, MHFG discloses business segment information based on the relevant principal consolidated subsidiaries such as MHBK (the former MHBK and the former MHCB), MHTB, and MHSC for investors to measure the present and future cash flows properly.

Operating segments of MHBK are aggregated based on the type of customer characteristics, and are aggregated into the following seven reportable segments: Personal Banking; Retail Banking; Corporate Banking (Large Corporations); Corporate Banking; Financial Institutions & Public Sector Business; International Banking; and Trading and others.

MHBK

Personal Banking

This segment provides financial products and services, such as housing loans, deposits, investment trusts, and individual insurance to individual customers through MHBK’s nationwide branches and ATM network as well as telephone and the internet banking services. In addition, this segment handles trust products as an agent of MHTB.

Retail Banking

This segment provides financial products and services, such as comprehensive consulting services of business succession and asset inheritance and asset management for business owners and high-net-worth customers. This segment also provides overall banking services for SMEs.

Corporate Banking (Large Corporations)

This segment provides a full range of financial solutions on a global basis to Japanese large corporations and their affiliates by integrating the Group’s specialty functions including banking, trust, and securities, based on solid relationships with MHBK’s domestic customers, and by utilizing its global industry knowledge.

Corporate Banking

This segment provides, to larger SMEs, financial products and services including a range of solution businesses in accordance with the growth strategy of MHBK’s corporate customers. This segment provides solutions for stable fund-raising, mergers and acquisitions, and initial public offerings for customers in their start-up or growth stages, and management buy-out, business succession, entry to new business, and business restructuring for customers in mature or transition stages.

Financial Institutions & Public Sector Business

This segment provides advisory services and solutions such as advice on financial strategy and risk management to financial institutions and provides comprehensive financial products and services that include funding support via the subscription and underwriting of bonds etc., to public sector entities.

International Banking

This segment provides unified support both in Japan and overseas for MHBK’s Japanese corporate customers to expand their overseas operations, and also promotes business with non-Japanese corporate customers in various countries through its global network. Further, this segment offers products such as project finance and trade finance for overseas customers.

Trading and others

This segment provides derivatives and other risk hedging products to satisfy MHBK’s customers’ financial and business risk control requirements. It is also engaged in MHBK’s proprietary trading, such as foreign exchange and bond trading, and asset and liability management. This segment also includes costs incurred by the head office functions of MHBK.

MHTB

MHTB provides products and services related to trust, real estate, securitization and structured finance, pension and asset management, and stock transfers.

MHSC

MHSC provides full-line securities services to corporations, financial institutions, public sector entities, and individuals.

Others

This segment consists of MHFG, its subsidiaries other than MHBK, MHTB, and MHSC, and its equity-method affiliates. They provide a wide range of customers with their various products and services such as those related to trust and custody, asset management, and private banking through companies such as TCSB, Mizuho Asset Management Co., Ltd., DIAM Co., Ltd. (an equity-method affiliate), and Mizuho Private Wealth Management Co., Ltd. This segment also provides non-banking services, including research and consulting services through Mizuho Research Institute Ltd., information technology-related services through Mizuho Information & Research Institute, Inc., and advisory services to financial institutions through Mizuho Financial Strategy Co., Ltd.

The information below for reportable segments is derived from the internal management reporting systems. Management does not use information on segments’ assets to allocate resources and assess performance and has not prepared information on segment assets. Accordingly, information on segment assets is not available.

	The former MHBK (Consolidated)
				The former MHBK (Non-consolidated)														The former MHIS (Consolidated)		Others
2012(1)	Total			Total		Personal Banking (a)		Retail Banking (b)		Corporate Banking (Large Corporations) (c)		Corporate Banking (d)		Financial Institution & Public Sector Business (e)		Trading and others (f)		(g)		(h)
	(in billions of yen)
Gross profits:
Net interest income (expense)		583.9			545.4		224.3		95.1		17.8		118.6		22.2		67.4		0.7		37.8
Net noninterest income		305.8			253.3		32.1		41.0		19.0		68.2		8.6		84.4		43.9		8.6
Total		889.7			798.7		256.4		136.1		36.8		186.8		30.8		151.8		44.6		46.4
General and administrative expenses		608.5			556.4		218.6		108.2		18.5		86.4		14.5		110.2		40.9		11.2
Others		(14.0	)		—		—		—		—		—		—		—		—		(14.0	)
Net business profits (losses)		267.2			242.3		37.8		27.9		18.3		100.4		16.3		41.6		3.7		21.2

	The former MHCB (Consolidated)																					MHTB (Consolidated)			Others			MHFG (Consolidated)
				The former MHCB (Non-consolidated)												The former MHSC (Consolidated)			Others
2012(1)	Total			Total		Corporate Banking (Large Corporations) (i)		Corporate Banking (j)		Financial Institution & Public Sector Business (k)		Inter- national Banking (l)		Trading and others (m)		(n)			(o)			(p)			(q)			Total
(in billions of yen)
Gross profits:
Net interest income (expense)		468.3			395.0		150.6		2.7		18.1		90.3		133.3		(8.1	)		81.4			42.5			(6.4	)		1,088.3
Net noninterest income		449.4			286.8		114.4		1.1		15.8		86.9		68.6		151.7			10.9			104.8			54.8			914.8
Total		917.7			681.8		265.0		3.8		33.9		177.2		201.9		143.6			92.3			147.3			48.4			2,003.1
General and administrative expenses		465.4			244.9		75.6		1.3		11.6		60.3		96.1		192.9			27.6			92.3			40.1			1,206.3
Others		(52.1	)		—		—		—		—		—		—		(0.1	)		(52.0	)		(3.7	)		(7.9	)		(77.7	)
Net business profits (losses)		400.2			436.9		189.4		2.5		22.3		116.9		105.8		(49.4	)		12.7			51.3			0.4			719.1

	The former MHBK (Consolidated)
				The former MHBK (Non-consolidated)														Others
2013(1)(2)(4)	Total			Total		Personal Banking (a)		Retail Banking (b)		Corporate Banking (Large Corporations) (c)		Corporate Banking (d)		Financial Institution & Public Sector Business (e)		Trading and others (f)		(g)
	(in billions of yen)
Gross profits:
Net interest income (expense)		550.6			513.8		219.2		83.3		14.9		106.1		19.9		70.4		36.8
Net noninterest income		360.3			313.7		33.9		42.3		19.3		70.7		11.0		136.5		46.6
Total		910.9			827.5		253.1		125.6		34.2		176.8		30.9		206.9		83.4
General and administrative expenses		568.2			524.4		218.6		113.7		11.6		73.2		14.3		93.0		43.8
Others		(7.4	)		—		—		—		—		—		—		—		(7.4	)
Net business profits (losses)		335.3			303.1		34.5		11.9		22.6		103.6		16.6		113.9		32.2

2013(1)(2)(4)	The former MHCB (Consolidated)																						MHTB (Consolidated)			Others			MHFG (Consolidated)
				The former MHCB (Non-consolidated)													MHSC (Consolidated)			Others
	Total			Total		Corporate Banking (Large Corporations) (h)		Corporate Banking (i)			Financial Institution & Public Sector Business (j)		Inter- national Banking (k)		Trading and others (l)		(m)			(n)			(o)			(p)			Total
(in billions of yen)
Gross profits:
Net interest income (expense)		486.1			401.7		140.9		0.5			16.3		108.2		135.8		(1.8	)		86.2			39.5			(0.3	)		1,075.9
Net noninterest income		572.8			333.4		103.3		0.2			13.2		104.7		112.0		229.0			10.4			105.0			57.7			1,095.8
Total		1,058.9			735.1		244.2		0.7			29.5		212.9		247.8		227.2			96.6			144.5			57.4			2,171.7
General and administrative expenses		471.9			241.1		76.8		1.3			12.2		66.6		84.2		197.1			33.7			90.1			40.8			1,171.0
Others		(50.0	)		—		—		—			—		—		—		—			(50.0	)		(3.5	)		(27.6	)		(88.5	)
Net business profits (losses)		537.0			494.0		167.4		(0.6	)		17.3		146.3		163.6		30.1			12.9			50.9			(11.0	)		912.2

2014(1)(2)(3)(4)	MHBK (Consolidated)																							MHTB (Consolidated)			MHSC (Consolidated)		Others			MHFG (Consolidated)
				MHBK (Non-consolidated)																	Others
	Total			Total		Personal Banking (a)		Retail Banking (b)		Corporate Banking (Large Corporations) (c)		Corporate Banking (d)		Financial Institution & Public Sector Business (e)		Inter- national Banking (f)		Trading and others (g)			(h)			(i)			(j)		(k)			Total
(in billions of yen)
Gross profits:
Net interest income		933.8			800.1		165.0		59.8		170.2		77.9		30.7		128.9		167.6			133.7			40.2			2.9		131.4			1,108.3
Net noninterest income (expenses)		407.4			398.2		32.9		34.8		126.7		51.8		20.1		139.8		(7.9	)		9.2			108.1			283.9		127.6			927.0
Total		1,341.2			1,198.3		197.9		94.6		296.9		129.7		50.8		268.7		159.7			142.9			148.3			286.8		259.0			2,035.3
General and administrative expenses		711.3			659.0		171.3		87.8		83.8		58.8		25.1		82.5		149.7			52.3			90.9			246.2		180.9			1,229.3
Others		(56.1	)		—		—		—		—		—		—		—		—			(56.1	)		(2.9	)		—		(2.7	)		(61.7	)
Net business profits		573.8			539.3		26.6		6.8		213.1		70.9		25.7		186.2		10.0			34.5			54.5			40.6		75.4			744.3

Notes:

(1) As for the fiscal year ended March 31, 2012, “Others (h)”, “Others (o)”, and “Others (q)” include elimination of transactions between consolidated subsidiaries. As for the fiscal year ended March 31, 2013, “Others (g)”, “Others (n)”, and “Others (p)” include elimination of transactions between consolidated subsidiaries. As for the fiscal year ended March 31, 2014, “Others (h)” and “Others (k)” include elimination of transactions between consolidated subsidiaries.

(2) Beginning on April 1, 2013, the MHFG Group moved to a new group operational structure and realigned the reportable segments to reflect the new organizational structure. In addition, new allocation methods have been applied to the calculation of “Gross profits” and “General and administrative expenses”. Figures for the fiscal year ended March 31, 2013 have been reclassified under the new allocation methods. The effect of the change of allocation methods is not significant.

(3) As for the fiscal year ended March 31, 2014, “MHBK (Non-consolidated)” represents the sum of the performance of the former MHCB for the first quarter and the new MHBK for the second, third, and fourth quarters, while “Others (h)” includes the performance of the former MHBK for the first quarter, in light of the merger of the former MHBK and the former MHCB conducted in July 2013.

(4) Beginning on April 1, 2013, MHSC was turned into a directly-held subsidiary of MHFG. As for the fiscal year ended March 31, 2013, “MHSC (Consolidated) (m)” represents the performance of the former MHSC for the first three quarters and the new MHSC for the fourth quarter, while “Others (g)” includes the performance of the former MHIS for the first three quarters. As for the fiscal year ended March 31, 2014, “MHSC (Consolidated) (j)” represents the performance of the new MHSC, in light of the merger of the former MHSC and the former MHIS conducted in January 2013.

Aggregation of MHBK and MHCB

2012	MHBK and MHCB
	Personal Banking (a)		Retail Banking (b)		Corporate Banking (Large Corporations) (c)		Corporate Banking (d)		Financial Institution & Public Sector Business (e)		International Banking (f)		Trading and others (g)		Total
	(in billions of yen)
Gross profits:
Net interest income		224.3		95.1		168.4		121.3		40.3		90.3		200.7		940.4
Net noninterest income		32.1		41.0		133.4		69.3		24.4		86.9		153.0		540.1
Total		256.4		136.1		301.8		190.6		64.7		177.2		353.7		1,480.5
General and administrative expenses		218.6		108.2		94.1		87.7		26.1		60.3		206.3		801.3
Others		—		—		—		—		—		—		—		—
Net business profits		37.8		27.9		207.7		102.9		38.6		116.9		147.4		679.2

2013	MHBK and MHCB
	Personal Banking (a)		Retail Banking (b)		Corporate Banking (Large Corporations) (c)		Corporate Banking (d)		Financial Institution & Public Sector Business (e)		International Banking (f)		Trading and others (g)		Total
	(in billions of yen)
Gross profits:
Net interest income		219.2		83.3		155.8		106.6		36.2		108.2		206.2		915.5
Net noninterest income		33.9		42.3		122.6		70.9		24.2		104.7		248.5		647.1
Total		253.1		125.6		278.4		177.5		60.4		212.9		454.7		1,562.6
General and administrative expenses		218.6		113.7		88.4		74.5		26.5		66.6		177.2		765.5
Others		—		—		—		—		—		—		—		—
Net business profits		34.5		11.9		190.0		103.0		33.9		146.3		277.5		797.1

2014	MHBK and MHCB
	Personal Banking (a)		Retail Banking (b)		Corporate Banking (Large Corporations) (c)		Corporate Banking (d)		Financial Institution & Public Sector Business (e)		International Banking (f)		Trading and others (g)		Total
	(in billions of yen)
Gross profits:
Net interest income		218.5		80.0		172.7		103.3		35.4		128.9		185.0		923.8
Net noninterest income		41.6		45.3		131.4		64.7		22.3		139.8		15.2		460.3
Total		260.1		125.3		304.1		168.0		57.7		268.7		200.2		1,384.1
General and administrative expenses		226.4		116.7		87.2		77.7		29.0		82.5		171.6		791.1
Others		—		—		—		—		—		—		—		—
Net business profits		33.7		8.6		216.9		90.3		28.7		186.2		28.6		593.0

Note: The former MHBK and the former MHCB merged on July 1, 2013. Figures for the fiscal years ended March 31, 2012 and 2013 represent the simple aggregation of the performance of the former MHBK and the former MHCB, and figures for the fiscal year ended March 31, 2014 represent the simple aggregation of the performance of the former MHBK and the former MHCB for the first quarter, and the new MHBK for the second, third, and fourth quarters. Beginning on April 1, 2013, the MHFG Group moved to a new group operational structure and realigned the reportable segments to reflect the new organizational structure. In addition, new allocation methods have been applied to the calculation of “Gross profits” and “General and administrative expenses”. Figures for the fiscal year ended March 31, 2013 have been reclassified under the new allocation methods.

Reconciliation

As explained above, the measurement base for the internal management reporting system and the income and expenses items covered are different from the accompanying consolidated statements of income. Therefore, it is impracticable to present reconciliations of all the business segments’ information, other than net business profits, to corresponding items in the accompanying consolidated statements of income. A reconciliation of total net business profits under the internal management reporting system for the fiscal years ended March 31, 2012, 2013, and 2014 presented above to Income before income tax expense shown on the consolidated statements of income is as follows:

	2012			2013			2014
	(in billions of yen)
Net business profits		719.1			912.2			744.3
U.S. GAAP adjustments		87.2			129.2			(325.4	)
(Provision) credit for loan losses		23.0			(139.9	)		126.2
Net gains (losses) related to equity investments		(90.5	)		28.2			178.7
Non-recurring personnel expense		(39.3	)		(23.5	)		(14.8	)
Gains on disposal of premises and equipment		19.9			12.4			10.5
(Provision) credit for losses on off-balance-sheet instruments		1.2			(4.6	)		(12.1	)
Others—net		(57.8	)		(28.8	)		18.9
Income before income tax expense		662.8			885.2			726.3

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Preferred stock

12 Months Ended

Mar. 31, 2014

Preferred stock

13. Preferred stock

The composition of preferred stock at March 31, 2012, 2013 and 2014 is as follows:

2012	Aggregate amount		Number of shares						Liquidation value per share		Convertible or not
Class of stock			Authorized		Issued		In treasury
	(in millions of yen)								(in yen)
Eleventh series class XI preferred stock (1)		914,752		1,369,512,000		914,752,000		541,073,800		1,000		Yes
Class XII preferred stock		—		1,500,000,000		—		—		—		—
Thirteenth series class XIII preferred stock		36,690		1,500,000,000		36,690,000		—		1,000		No
Total		951,442		4,369,512,000		951,442,000		541,073,800
2013	Aggregate amount		Number of shares						Liquidation value per share		Convertible or not
Class of stock			Authorized		Issued		In treasury
	(in millions of yen)								(in yen)
Eleventh series class XI preferred stock (1)		914,752		1,369,512,000		914,752,000		574,087,800		1,000		Yes
Class XII preferred stock		—		1,500,000,000		—		—		—		—
Thirteenth series class XIII preferred stock		36,690		1,500,000,000		36,690,000		—		1,000		No
Total		951,442		4,369,512,000		951,442,000		574,087,800
2014	Aggregate amount		Number of shares						Liquidation value per share		Convertible or not
Class of stock			Authorized		Issued		In treasury
	(in millions of yen)								(in yen)
Eleventh series class XI preferred stock (1)		914,752		914,752,000		914,752,000		602,100,700		1,000		Yes
Thirteenth series class XIII preferred stock		—		36,690,000		—		—		—		—
First series class XIV preferred stock (2)		—		900,000,000		—		—		—		—
Second series class XIV preferred stock (2)		—		900,000,000		—		—		—		—
Third series class XIV preferred stock (2)		—		900,000,000		—		—		—		—
Fourth series class XIV preferred stock (2)		—		900,000,000		—		—		—		—
First series class XV preferred stock (3)		—		900,000,000		—		—		—		—
Second series class XV preferred stock (3)		—		900,000,000		—		—		—		—
Third series class XV preferred stock (3)		—		900,000,000		—		—		—		—
Fourth series class XV preferred stock (3)		—		900,000,000		—		—		—		—
First series class XVI preferred stock (4)		—		1,500,000,000		—		—		—		—
Second series class XVI preferred stock (4)		—		1,500,000,000		—		—		—		—
Third series class XVI preferred stock (4)		—		1,500,000,000		—		—		—		—
Fourth series class XVI preferred stock (4)		—		1,500,000,000		—		—		—		—
Total		914,752		4,251,442,000		914,752,000		602,100,700

Notes:

(1) The aggregate amount and number of issued shares include the preferred stock in treasury which has been converted to common stock but not yet cancelled.

(2) The total number of authorized shares from first to fourth series class XIV preferred stock shall not exceed 900,000,000.

(3) The total number of authorized shares from first to fourth series class XV preferred stock shall not exceed 900,000,000.

(4) The total number of authorized shares from first to fourth series class XVI preferred stock shall not exceed 1,500,000,000.

Holders or registered pledgees of preferred stock are entitled to receive annual dividends, and distribution of residual assets of MHFG as set out above at the liquidation value per share, prior to holders of common stock but pari passu among themselves. MHFG may pay up to one-half of the annual dividend payable on each class of preferred stock as an interim dividend. Dividends on preferred stock are not cumulative. Holders of preferred stock are not entitled to vote at a general meeting of shareholders except where the articles of incorporation entitle holders of preferred stock to vote.

In June 2013, MHFG newly authorized class XIV preferred stock, class XV preferred stock and class XVI preferred stock in relation to meet the requirements of Basel III. Under Basel III, in order for preferred stock issued by a bank holding company to be included as its regulatory capital under the capital adequacy requirements, the terms and conditions of the preferred stock are required to include a provision that in the case where the bank holding company is recognized as non-viable, (1) a write-off of the relevant preferred stock or (2) a conversion of the relevant preferred stock into common stock shall be effected (a loss-absorption clause). In respect of class XI preferred stock, class XII preferred stock and class XIII preferred stock, which were authorized for since before the implementation of Basel III in the articles of incorporation of MHFG, it is not possible to include the foregoing loss-absorption clause in the terms and conditions of those preferred stock under the current provisions of the articles of incorporation. Therefore, class XIV preferred stock, class XV preferred stock and class XVI preferred stock were newly authorized so that the foregoing loss-absorption clause can be included in the terms and conditions of class XIV preferred stock, class XV preferred stock and class XVI preferred stock by a resolution of the board of directors relating to the issuance of the relevant preferred stock. Besides the foregoing loss-absorption clause, provisions regarding the preferred stock dividends, distribution of residual assets, acquisition clause and rights to request acquisition in respect of class XIV preferred stock, class XV preferred stock and class XVI preferred stock were newly established. In addition, each of class XIV preferred stock, class XV preferred stock and class XVI preferred stock was established in multiple series as a separate class of shares in order to enable MHFG to issue those preferred stock in multiple series.

Eleventh series class XI preferred stock is convertible into common stock at the option of the holder. The material terms and conditions of conversion are as follows.

	Conversion period	Conversion ratio (Note)
Eleventh series class XI preferred stock	July 1, 2008 to June 30, 2016	¥1,000/(conversion price), where the conversion price after adjustment is ¥282.90 on or after August 30, 2011; to be reset on July 1, 2014 and 2015 (each, a “Reset Date”) as ¥1,000/(conversion price), where the conversion price is the lower of (x) the average price of daily closing prices (including closing bid or offered price) of common stock as reported by the Tokyo Stock Exchange (“TSE”) for the 30 consecutive trading days (excluding trading days on which no closing price, closing bid or offered price is reported) commencing on the 45th trading day prior to the Reset Date and (y) the conversion price after adjustment effective as of the day before the relevant Reset Date, provided that the conversion price shall not be less than ¥282.90.

Note: Subject to adjustment, where issuance or disposal by MHFG of common stock for a price below the “current market price”, a stock split, issuance of securities convertible into common stock at a price below the “current market price” at the time of issuance thereof or determination of the conversion price thereof, merger or amalgamation, or a capital decrease or stock consolidation occurs and in certain other circumstances.

Each share of preferred stock which has not been converted as described above by the end of the relevant conversion period will be converted into common stock on the day following the end of the conversion period on the following terms:

	Conversion date	Conversion ratio
Eleventh series class XI preferred stock	July 1, 2016	¥1,000/(current market price), where the current market price is the average price of daily closing prices (including closing bid or offered price) of common stock as reported by the TSE for the 30 consecutive trading days (excluding trading days on which no closing price, closing bid or offered price is reported) commencing on the 45th trading day prior to July 1, 2016, provided that the current market price shall not be less than ¥282.90.

The changes in the number of shares and the aggregate amount of preferred stock during the fiscal years ended March 31, 2012, 2013 and 2014 were as follows:

Class of stock	Issued at March 31, 2011		Net change		Issued at March 31, 2012		Net change		Issued at March 31, 2013		Net change			Issued at March 31, 2014
	(number of shares)
Eleventh series class XI preferred stock (Note)		914,752,000		—		914,752,000		—		914,752,000		—			914,752,000
Thirteenth series class XIII preferred stock		36,690,000		—		36,690,000		—		36,690,000		(36,690,000	)		—
Total		951,442,000		—		951,442,000		—		951,442,000		(36,690,000	)		914,752,000
Class of stock	Aggregate amount at March 31, 2011		Net change		Aggregate amount at March 31, 2012		Net change		Aggregate amount at March 31, 2013		Net change			Aggregate amount at March 31, 2014
	(in millions of yen)
Eleventh series class XI preferred stock (Note)		914,752		—		914,752		—		914,752		—			914,752
Thirteenth series class XIII preferred stock		36,690		—		36,690		—		36,690		(36,690	)		—
Total		951,442		—		951,442		—		951,442		(36,690	)		914,752

Note: The aggregate amount and number of issued shares include the preferred stock in treasury which has been converted to common stock but not yet cancelled.

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Deposits - Additional Information (Detail) (JPY ¥) In Billions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Deposits From Banking Clients [Line Items]
Aggregate amount of demand deposits in overdraft status that have been reclassified as loan balances	¥ 597	¥ 543