6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13A-16 OR 15D-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of October, 2017

Commission File Number: 001-37877

The Bank of N.T. Butterfield & Son Limited

(Translation of registrant’s name into English)

65 Front Street

Hamilton, HM 12

Bermuda

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F ý Form 40-F o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): o

DOCUMENTS INCLUDED AS PART OF THIS FORM 6-K

Attached hereto (i) as Exhibit 99.1 is the earnings release, (ii) as Exhibit 99.2 is the financial statements and (iii) as Exhibit 99.3 is the earnings call presentation, all for The Bank of N.T. Butterfield & Son Limited (the “Company”) for the three months ended September 30, 2017.

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date:  October 25, 2017	THE BANK OF N.T. BUTTERFIELD & SON LIMITED
	By:	/s/ Shaun Morris
	Name:	Shaun Morris
	Title:	General Counsel and Group Chief Legal Officer

2

EXHIBIT INDEX

Exhibit	Description
99.1	Earnings release - Third quarter 2017 results
99.2	Financial statements for the nine months ended 30 September 2017
99.3	Earnings call presentation - Third quarter 2017 results

3

EX-99.1

Butterfield Reports Third Quarter 2017 Results

• Net income of $41.1 million, or $0.74 per share.

• Core net income¹ of $40.7 million, or $0.73 per share.

• Net interest margin of 2.81%.

• Return on average assets of 1.5%.

• Return on average common equity of 20.7%; core return on average tangible common equity¹ of 22.2%.

• Butterfield to acquire Global Trust Solutions business from Deutsche Bank.

Hamilton, Bermuda - 25 October 2017: The Bank of N.T. Butterfield & Son Limited (BSX: NTB.BH; NYSE: NTB) today announced financial results for the quarter ended 30 September 2017.

Third quarter core net income¹ was $40.7 million, or $0.73 per diluted common share, compared to $37.5 million, or $0.67 per diluted common share for the second quarter of 2017 and $33.4 million, or $0.60 per diluted common share, for the third quarter of 2016.

The return on average assets for the third quarter of 2017 was 1.5%, up from 1.3% in the previous quarter and 0.9% in the third quarter of 2016. The core return on average tangible common equity¹ for the third quarter of 2017 was 22.2%, up from 21.6% in the previous quarter and 19.0% in the third quarter of 2016. The core efficiency ratio¹ for the third quarter of 2017 was 62.8% compared with 66.1% in the previous quarter and 65.3% in the third quarter of 2016.

“Butterfield delivered solid results this quarter as lending margins improved and expenses began to return to a more normal level,” said Michael Collins, Chairman and Chief Executive Officer. “Today, we are also pleased to announce an agreement to acquire the Global Trust Solutions business from Deutsche Bank. This acquisition will add scale and talent to our existing trust operations in Switzerland, Guernsey and Cayman and add a profitable and strategically important private trust platform in Singapore. We expect it to generate stable trust fee income for the Bank and be accretive once integrated.”

Collins added, "This is our fourth significant acquisition since 2014 and is consistent with our strategy to grow by acquiring complementary businesses in select jurisdictions."

Net interest income (“NII”) for the third quarter of 2017 was $74.3 million, an increase of $2.8 million compared with NII of $71.5 million in the second quarter of 2017 and an increase of $9.3 million compared with NII of $65.0 million in the third quarter of 2016. Improvements in NII were driven by higher yields on the investment portfolio and on the adjustable-rate loan portfolio.

Net interest margin (“NIM”) for the third quarter of 2017 was 2.81%, up 15 basis points from the NIM of 2.66% in the previous quarter and up 42 basis points from the NIM of 2.39% in the third quarter of 2016. Improvements in NIM were driven by increases in NII and deposit costs which decreased slightly to 10 basis points from 11 basis points in the previous quarter.

(1) See table "Reconciliation of US GAAP Results to Core Earnings" below for reconciliation of US GAAP results to non-GAAP measures         1

Results for the third quarter of 2017 included a release of provision for credit losses of $0.7 million compared with a provision for credit losses of $0.5 million in the previous quarter and a provision for credit losses of $0.3 million in the third quarter of 2016.

Non-interest income was $38.2 million for the third quarter of 2017, compared with $38.7 million in the previous quarter and $36.3 million in the third quarter of 2016.

Non-interest expenses were $73.6 million in the third quarter of 2017, compared with $75.3 million in the previous quarter and $77.3 million in the third quarter of 2016. Non-interest expenses are expected to continue to normalize over the next quarter as various temporary expenses abate.

Capital Management

The current total capital ratio as at 30 September 2017 was 19.9% as calculated under Basel III, which was effective for reporting purposes beginning on 1 January 2016. As of 31 December 2016, the Bank reported its total capital ratio under Basel III at 17.6%. Both of these ratios are significantly above regulatory requirements.

The Board remains committed to a balanced capital return policy. The Board declared an interim dividend of $0.32 per common share to be paid on 27 November 2017 to shareholders of record on 13 November 2017.

2

ANALYSIS AND DISCUSSION OF THIRD QUARTER RESULTS

Income statement	Three months ended (Unaudited)
(in $ millions)	30 September 2017		30 June 2017		30 September 2016
Non-interest income	38.2		38.7		36.3
Net interest income before provision for credit losses	74.3		71.5		65.0
Total net revenue before provision for credit losses and other gains (losses)	112.5		110.2		101.3
Provision for credit losses	0.7		(0.5	)	(0.3	)
Total other gains (losses)	1.8		2.0		0.6
Total net revenue	114.9		111.6		101.6
Non-interest expenses	(73.6	)	(75.3	)	(77.3	)
Total net income before taxes	41.3		36.3		24.3
Income tax expense	(0.2	)	(0.3	)	(0.2	)
Net income	41.1		36.1		24.0
Dividends and guarantee fee of preference shares	—		—		(4.1	)
Net earnings attributable to common shareholders	41.1		36.1		19.9
Net earnings per share
Basic	0.75		0.66		0.41
Diluted	0.74		0.65		0.41
Per diluted share impact of other non-core items (1)	(0.01	)	0.02		0.19
Core earnings per share on a fully diluted basis (1)	0.73		0.67		0.60
Adjusted weighted average number of participating shares on a fully diluted basis(in thousands of shares)	55,465		55,580		49,038
Key financial ratios
Return on average assets	1.5	%	1.3	%	0.9	%
Return on common equity	20.7	%	19.0	%	11.7	%
Core return on average tangible common equity (1)	22.2	%	21.6	%	19.0	%
Net interest margin	2.81	%	2.66	%	2.39	%
Core efficiency ratio (1)	62.8	%	66.1	%	65.3	%
	0.10	%	0.11	%	0.11	%

⁽¹⁾  See table "Reconciliation of US GAAP Results to Core Earnings" below for reconciliation of US GAAP results to non-GAAP measures

3

Balance Sheet	As at
(in $ millions)	30 September 2017			31 December 2016
Cash due from banks	1,546			2,102
Securities purchased under agreement to resell	210			149
Short-term investments	208			520
Investments in securities	4,613			4,400
Loans, net of allowance for credit losses	3,664			3,570
Premises, equipment and computer software	164			168
Goodwill and intangibles	61			62
Other assets	113			133
Total assets	10,578			11,104
Total deposits	9,407			10,034
Other liabilities	252			242
Long-term debt	117			117
Total liabilities	9,776			10,393
Common shareholders’ equity	802			711
Total shareholders' equity	802			711
Total liabilities and shareholders' equity	10,578			11,104
Key Balance Sheet Ratios:	30 September 2017			31 December 2016
Common equity tier 1 capital ratio	17.8	%	(1)	15.3	%	(1)
Tier 1 capital ratio	17.8	%	(1)	15.3	%	(1)
Total capital ratio	19.9	%	(1)	17.6	%	(1)
Leverage ratio	6.7	%	(1)	5.8	%	(1)
Risk-Weighted Assets (in $ millions)	4,152.7			4,365.4
Risk-Weighted Assets / Total Assets	39.3	%		39.3	%
Tangible common equity ratio	7.0	%		5.9	%
Non-accrual loans/gross loans	1.3	%		1.3	%
Non-performing assets/total assets	0.6	%		0.5	%
Total coverage ratio	86.2	%		91.3	%
Specific coverage ratio	27.4	%		24.2	%

⁽¹⁾  Effective 1 January 2016, the Bank’s regulatory capital is determined in accordance with current Basel III guidelines issued by the BMA. Basel III adopts Common Equity Tier 1 (“CET1”) as the predominant form of regulatory capital with the CET1 ratio as a new metric. Basel III also adopts the new Leverage Ratio regime, which is calculated by dividing Tier 1 capital by an exposure measure. The leverage exposure measure consists of total assets (excluding items deducted from Tier 1 capital) and certain off balance sheet items converted into credit exposure equivalents as well as adjustments for derivatives to reflect credit and other risks.

QUARTER ENDED 30 SEPTEMBER 2017 COMPARED WITH THE QUARTER ENDED 30 JUNE 2017

Net Income

Net income for the quarter ended 30 September 2017 was $41.1 million, up $5.0 million from $36.1 million in the prior quarter.

The $5.0 million increase in net income in the quarter ended 30 September 2017 over the second quarter of 2017 was due principally to the following:

• $2.8 million increase in net interest income before provision for credit losses, principally from interest earned on loans from slightly increased volumes and a full quarter's impact of repricing which increased yields as well as increased yields on the investment portfolio;

• $1.2 million decrease in provisions for credit losses, principally from lower general provisioning rates;

• $0.5 million decrease in non-interest income, principally from lower pick-up from investments in associates and equity method investments and lower trust revenue, partially offset by higher asset management fees;

• $1.5 million decrease in marketing costs, due principally to a decrease in America’s Cup-related marketing initiatives;

• $0.8 million increase in professional and outside services costs, due principally to $1.1 million of non-core expenses associated with potential acquisitions; and

4

• $1.0 million decrease in the remaining non-interest expense items, due to lower America’s Cup-related premises improvement costs, a decrease in restructuring costs and lower Board of Directors-related expenses, partially offset by an increase in indirect taxation due to the timing of payments for work permits.

Non-Core Items

Non-core items resulted in net gains of $0.4 million in the quarter ended 30 September 2017, a decrease of $1.8 million from net losses and expenses of $1.4 million in the prior quarter. Non-core items for the period comprised principally:

• $2.5 million in gains from the Avenir (SIV) pass-through note liquidation settlement;

• $1.1 million of professional and outside services expenses associated with potential acquisitions;

• Restructuring charges of $0.4 million, which represent professional fees and staff severance amounts incurred during the course of the orderly wind-down of the deposit taking and investment management businesses in the UK; and

• $0.4 million of expenses associated with an internal review and account remediation programme of US-person account holders.

Management does not believe that the expenses, gains or losses identified as non-core are indicative of the results of operations of the Bank in the ordinary course of business.

BALANCE SHEET COMMENTARY AT 30 SEPTEMBER 2017 COMPARED WITH 31 DECEMBER 2016

Total Assets

Total assets of the Bank were $10.6 billion at 30 September 2017, down $0.5 billion from 31 December 2016. The Bank maintained a highly liquid position at 30 September 2017, with $5.3 billion of cash and demand deposits with banks, reverse repurchase agreements and short and long-term investments, excluding held-to-maturity investments, representing 50.1% of total assets, compared with 55.0% at 31 December 2016.

Loans Receivable

The loan portfolio totalled $3.7 billion at 30 September 2017, approximately flat from year-end 2016, as paydowns in commercial lending were offset by new residential mortgages loans.

Allowance for credit losses at 30 September 2017 totalled $42.0 million, a decrease of $2.3 million from year-end 2016. The movement was due to recoveries on several specific provisions, as well as slightly lower general provisioning rates across several jurisdictions.

The loan portfolio represented 34.6% of total assets at 30 September 2017 (31 December 2016: 32.2%), whilst loans as a percentage of customer deposits increased from 35.7% at year-end 2016 to 39.0% at 30 September 2017, both of which are due to a decrease in customer term deposits.

As of 30 September 2017, the Bank had gross non-accrual loans of $48.7 million, representing 1.3% of total gross loans, a slight increase from the $48.5 million, or 1.3%, of total loans at year-end 2016. Net non-accrual loans were $35.4 million, equivalent to 1.0% of net loans. We continue to engage proactively with our clients who experience financial difficulty.

Other real estate owned (“OREO”) decreased slightly by $1.9 million to $12.3 million for the third quarter ended 30 September 2017, primarily as a result of sales transactions completed in the quarter.

Investment in Securities

The investment portfolio was $4.6 billion at 30 September 2017, compared to $4.4 billion at 31 December 2016. The increased portfolio size was driven principally by a greater allocation of assets to the held-to-maturity portfolio, which increased $0.2 billion through the purchase of US government and federal agency securities in 2017.

The investment portfolio was made up of high quality assets with 96.9% invested in A-or-better-rated securities. The investment yield increased slightly from the previous quarter to 2.22% as at 30 September 2017. Total net unrealised losses were $5.6 million, compared to $36.4 million at year-end 2016. The decrease in unrealised losses is attributable largely to a slight decrease in long-term treasury rates in the first nine months of 2017. The benchmark US 10-year treasury rate fell to its 52-week low in June 2016, and rebounded to its 52-week high in December 2016 and has settled around year-end levels at 30 September 2017.

5

Deposits

Average deposits were at $9.7 billion in the third quarter of 2017 compared to $10.0 billion in the fourth quarter of 2016. The cost of deposits was down slightly from the previous quarter at 10 basis points.

Average Balance Sheet¹ 

	For the three months ended
	30 September 2017				30 June 2017				30 September 2016
(in $ millions)	Average balance ($)	Interest ($)		Average rate (%)	Average balance ($)	Interest ($)		Average rate (%)	Average balance ($)	Interest ($)		Average rate (%)
Assets
Cash due from banks and short‑term investments	2,241.5	4.6		0.81	2,636.9	4.5		0.68	2,924.4	2.6		0.35
Investment in securities	4,561.9	25.5		2.22	4,539.2	24.9		2.20	3,932.5	18.9		1.91
Trading	0.8	—		—	0.8	—		—	6.7	—		—
Available-for-sale	3,265.0	16.3		1.98	3,312.1	16.1		1.95	3,267.6	13.4		1.62
Held-to-maturity	1,296.1	9.2		2.83	1,226.3	8.9		2.90	658.2	5.6		3.38
Loans	3,682.3	47.9		5.16	3,606.8	46.0		5.11	3,945.6	47.3		4.75
Commercial	1,240.3	16.0		5.11	1,199.6	14.7		4.92	1,425.2	18.0		5.02
Consumer	2,442.0	31.9		5.19	2,407.1	31.2		5.20	2,520.4	29.3		4.60
Interest earning assets	10,485.8	78.0		2.95	10,782.9	75.3		2.80	10,802.5	68.8		2.53
Other assets	327.8				359.5				363.1
Total assets	10,813.5	78.0		2.86	11,142.4	75.3		2.71	11,165.5	68.8		2.45
Liabilities
Deposits	7,255.3	(2.5	)	0.14	7,635.2	(2.7	)	0.14	8,013.3	(2.7	)	0.13
Securities sold under agreement to repurchase	—	—		—	—	—		—	2.8	—		0.74
Long-term debt	117.0	(1.3	)	4.26	117.0	(1.2	)	4.20	117.0	(1.1	)	3.84
Interest bearing liabilities	7,372.3	(3.7	)	0.20	7,752.2	(3.9	)	0.20	8,133.2	(3.8	)	0.19
Non-interest bearing current accounts	2,413.9				2,377.6				2,031.4
Other liabilities	255.7				251.1				157.9
Total liabilities	10,042.0	(3.7	)	0.15	10,380.9	(3.9	)	0.15	10,322.5	(3.8	)	0.15
Shareholders’ equity	771.6				761.5				843.0
Total liabilities and shareholders’ equity	10,813.5				11,142.4				11,165.5
Non‑interest‑bearing funds net of    non‑interest earning assets (free balance)	3,113.4				3,030.7				2,669.3
Net interest margin		74.3		2.81		71.5		2.66		65.0		2.39

¹ Averages are based upon a daily averages for the periods indicated.

Assets Under Administration and Assets Under Management

Total assets under administration for the trust and custody businesses were $95.5 billion and $25.5 billion, respectively, whilst assets under management were $5.1 billion as at 30 September 2017. This compares with $98.0 billion, $24.7 billion and $4.7 billion, respectively, at 31 December 2016.

6

Reconciliation of US GAAP Results to Core Earnings

The table below shows the reconciliation of net income in accordance with US GAAP to core earnings, a non-GAAP measure, which excludes certain significant items that are included in our US GAAP results of operations. We focus on core net income, which we calculate by adjusting net income to exclude certain income or expense items that are not representative of our business operations, or “non-core”. Core net income includes revenue, gains, losses and expense items incurred in the normal course of business. We believe that expressing earnings and certain other financial measures excluding these non-core items provides a meaningful base for period-to-period comparisons, which management believes will assist investors in analysing the operating results of the Bank and predicting future performance. We believe that presentation of these non-GAAP financial measures will permit investors to assess the performance of the Bank on the same basis as management.

Core Earnings	Three months ended
(in $ millions except per share amounts)	30 September 2017		30 June 2017		30 September 2016
Net income	41.1		36.1		24.0
Dividends and guarantee fee of preference shares	—		—		(4.1	)
Net income to common shareholders	41.1		36.1		19.9
Non-core items
Non-core (gains) losses
Gain on disposal of a pass-through note investment (formerly a SIV)	(2.5	)	—		—
Adjustment to holdback payable for a previous business acquisition	0.1		—		(0.7	)
Total non-core (gains) losses	(2.4	)	—		(0.7	)
Non-core expenses
Early retirement programme, redundancies and other non-core compensation costs	0.1		0.1		0.3
Tax compliance review costs	0.4		0.7		0.2
Business acquisition costs	1.1		—		0.2
Restructuring charges and related professional service fees	0.4		0.6		0.6
Cost of 2010 legacy option plan vesting and related payroll taxes	—		—		8.8
Total non-core expenses	2.0		1.4		10.1
Total non-core items	(0.4	)	1.4		9.4
Core net income	40.7		37.5		33.4
Core net income attributable to common shareholders	40.7		37.5		29.3
Average shareholders' equity	788.9		759.2		859.4
Less: average preference shareholders' equity	—		—		(182.9	)
Average common equity	788.9		759.2		676.5
Less: average goodwill and intangible assets	(61.3	)	(61.6	)	(65.6	)
Average tangible common equity	727.6		697.6		610.9
Core earnings per share fully diluted 1	0.73		0.67		0.60
Return on common equity	20.7	%	19.0	%	11.7	%
Core return on average tangible common equity	22.2	%	21.6	%	19.0	%
Non-interest expenses	73.6		75.3		77.3
Less: non-core expenses	(2.0	)	(1.4	)	(10.1	)
Less: amortization of intangibles	(1.0	)	(1.1	)	(1.2	)
Core non-interest expenses before amortization of intangibles	70.6		72.8		66.0
Core revenue before other gains and losses and provision for credit losses	112.5		110.2		101.3
Core efficiency ratio	62.8	%	66.1	%	65.3	%

7

Conference Call Information

Butterfield will host a conference call to discuss the Bank’s results on Wednesday 25 October 2017 at 10:00 a.m. Eastern Daylight Time. Callers may access the conference call by dialing +1 (844) 855 9501 (toll-free) or +1 (412) 858 4603 (international) ten minutes prior to the start of the call. A live webcast of the conference call, including a slide presentation, will be available in the investor relations section of Butterfield’s website at www.butterfieldgroup.com. A replay of the call will be archived on the Butterfield website thereafter.

About Non-GAAP Financial Measures:

Certain statements in this release involve the use of non-GAAP financial measures. We believe such measures provide useful information to investors that is supplementary to our financial condition, results of operations and cash flows computed in accordance with GAAP; however, our non-GAAP financial measures have a number of limitations. As such, investors should not view these disclosures as a substitute for results determined in accordance with GAAP, and they are not necessarily comparable to non-GAAP financial measures that other companies use.

Forward-Looking Statements:

Certain of the statements made in this Release are “forward-looking statements” within the meaning and protections of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements include statements with respect to our beliefs, plans, objectives, goals, expectations, anticipations, assumptions, estimates, intentions, and future performance, and involve known and unknown risks, uncertainties and other factors, which may be beyond our control, and which may cause the actual results, performance, capital, ownership or achievements of the Bank to be materially different from future results, performance or achievements expressed or implied by such forward-looking statements due to a variety of factors, including worldwide economic conditions, success in business retention and obtaining new business and other factors. All statements other than statements of historical fact are statements that could be forward-looking statements. You can identify these forward-looking statements through our use of words such as “may,” “will,” “anticipate,” “assume,” “should,” “indicate,” “would,” “believe,” “contemplate,” “expect,” “estimate,” “continue,” “plan,” “point to,” “project,” “could,” “intend,” “target” and other similar words and expressions of the future.

All forward-looking statements attributable to us are expressly qualified in their entirety by this cautionary notice, including, without limitation, those risks and uncertainties described in our Securities and Exchange Commission (“SEC”) reports and filings. Such reports are available upon request from the Bank,or from the SEC, including through the SEC’s Internet website at http://www.sec.gov. We have no obligation and do not undertake to update, revise or correct any of the forward-looking statements after the date hereof, or after the respective dates on which any such statements otherwise are made.

About Butterfield:

Butterfield is a full-service bank and wealth manager headquartered in Hamilton, Bermuda, providing services to clients from six jurisdictions: Bermuda, the Cayman Islands and Guernsey, where our principal banking operations are located; and The Bahamas, Switzerland and the United Kingdom, where we offer specialised financial services. Banking services comprise retail and corporate banking. Wealth management services are composed of trust, private banking, and asset management. In Bermuda and the Cayman Islands, we offer both banking and wealth management. In Guernsey, The Bahamas and Switzerland, we offer wealth management. In the UK, we offer residential property lending. Butterfield is publicly traded on the New York Stock Exchange (symbol: NTB) and the Bermuda Stock Exchange (symbol: NTB.BH). Further details on the Butterfield Group can be obtained from our website at: www.butterfieldgroup.com.

Investor Relations Contact:Media Relations Contact:

Michael SchrumMark Johnson

Group Chief Financial OfficerGroup Head of Communications

The Bank of N.T. Butterfield & Son LimitedThe Bank of N.T. Butterfield & Son Limited

Phone: (441) 298 4758Phone: (441) 299 1624

Fax : (441) 295 1220Fax: (441) 295 3878

E-mail: michael.schrum@butterfieldgroup.comE-mail: mark.johnson@butterfieldgroup.com

8

EX-99.2

INDEX TO FINANCIAL STATEMENTS

Unaudited Consolidated Financial Statements	Page
Consolidated Balance Sheets (unaudited) as of 30 September 2017 and 31 December 2016	2
Consolidated Statements of Operations (unaudited) for the Three and Nine Months Ended 30 September 2017 and 2016	3
Consolidated Statements of Comprehensive Income (unaudited) for the Three and Nine Months Ended 30 September 2017 and 2016	4
Consolidated Statements of Changes in Shareholders’ Equity (unaudited) for the Nine Months Ended 30 September 2017 and 2016	5
Consolidated Statements of Cash Flows (unaudited) for the Nine Months Ended 30 September 2017 and 2016	6
Notes to the Consolidated Financial Statements (unaudited)	7

1

The Bank of N.T. Butterfield & Son Limited

Consolidated Balance Sheets (unaudited)

(In thousands of US dollars, except share and per share data)

	As at
	30 September 2017		31 December 2016
Assets
Cash and demand deposits with banks - Non-interest bearing	90,520		110,741
Demand deposits with banks - Interest bearing	304,322		326,437
Cash equivalents - Interest bearing	1,150,680		1,664,473
Cash due from banks	1,545,522		2,101,651
Securities purchased under agreement to resell	209,595		148,813
Short-term investments	208,177		519,755
Investment in securities
Trading	6,700		6,313
Available-for-sale	3,327,935		3,332,738
Held-to-maturity (fair value: $1,278,210 (2016: $1,046,828))	1,278,152		1,061,103
Total investment in securities	4,612,787		4,400,154
Loans
Loans	3,706,091		3,614,725
Allowance for credit losses	(41,990	)	(44,247	)
Loans, net of allowance for credit losses	3,664,101		3,570,478
Premises, equipment and computer software	164,342		167,773
Accrued interest	25,629		22,780
Goodwill	21,353		19,622
Intangible assets	40,037		42,289
Investments in associates and equity method	13,728		13,482
Other real estate owned	12,272		14,199
Other assets	60,839		82,549
Total assets	10,578,382		11,103,545
Liabilities
Customer deposits
Bermuda
Non-interest bearing	1,752,084		1,733,684
Interest bearing	3,390,642		4,213,417
Non-Bermuda
Non-interest bearing	619,003		651,329
Interest bearing	3,632,915		3,411,423
Total customer deposits	9,394,644		10,009,853
Bank deposits
Bermuda	366		344
Non-Bermuda	12,451		23,452
Total deposits	9,407,461		10,033,649
Employee benefit plans	140,436		139,967
Accrued interest	2,828		2,143
Other liabilities	108,242		100,044
Total other liabilities	251,506		242,154
Long-term debt	117,000		117,000
Total liabilities	9,775,967		10,392,803
Commitments, contingencies and guarantees (Note 10)
Shareholders' equity
Common share capital (BMD 0.01 par; authorised voting ordinary shares 2,000,000,000 and non-voting ordinary shares 6,000,000,000) issued and outstanding: 54,675,192 (2016: 53,284,872)	547		533
Additional paid-in capital	1,152,456		1,142,608
Accumulated deficit	(226,914	)	(287,677	)
Less: treasury common shares, at cost: nil (2016: 2,066)	—		(42	)
Accumulated other comprehensive loss	(123,674	)	(144,680	)
Total shareholders’ equity	802,415		710,742
Total liabilities and shareholders’ equity	10,578,382		11,103,545

The accompanying notes are an integral part of these consolidated financial statements.

2

The Bank of N.T. Butterfield & Son Limited

Consolidated Statements of Operations (unaudited)

(In thousands of US dollars, except per share data)

	Three months ended				Nine months ended
	30 September 2017		30 September 2016		30 September 2017		30 September 2016
Non-interest income
Asset management	6,336		5,596		18,125		15,075
Banking	10,795		9,670		31,779		28,357
Foreign exchange revenue	7,561		6,474		23,404		23,222
Trust	10,949		11,585		33,592		32,533
Custody and other administration services	2,046		2,300		5,980		6,850
Other non-interest income	546		641		2,594		2,647
Total non-interest income	38,233		36,266		115,474		108,684
Interest income
Interest and fees on loans	47,912		47,282		137,869		142,017
Investments (none of the investment securities are intrinsically tax-exempt)
Trading	—		—		—		1,558
Available-for-sale	16,275		13,350		48,211		38,527
Held-to-maturity	9,232		5,599		26,667		16,054
Deposits with banks	4,583		2,602		12,523		6,191
Total interest income	78,002		68,833		225,270		204,347
Interest expense
Deposits	2,486		2,695		7,948		9,220
Long-term debt	1,258		1,134		3,675		3,339
Securities sold under repurchase agreements	—		6		—		118
Total interest expense	3,744		3,835		11,623		12,677
Net interest income before provision for credit losses	74,258		64,998		213,647		191,670
Provision for credit losses	661		(307	)	487		(5,271	)
Net interest income after provision for credit losses	74,919		64,691		214,134		186,399
Net trading gains (losses)	102		71		387		840
Net realised gains (losses) on available-for-sale investments	2,468		(3	)	4,246		(81	)
Net gains (losses) on other real estate owned	(132	)	(117	)	74		(426	)
Net other gains (losses)	(683	)	673		(743	)	(117	)
Total other gains (losses)	1,755		624		3,964		216
Total net revenue	114,907		101,581		333,572		295,299
Non-interest expense
Salaries and other employee benefits	37,444		42,365		110,823		105,790
Technology and communications	13,240		14,373		39,578		42,958
Professional and outside services	6,900		4,057		19,231		13,485
Property	5,114		5,356		15,387		15,498
Indirect taxes	4,618		4,235		13,319		11,630
Marketing	906		871		4,238		2,795
Amortisation of intangible assets	1,049		1,151		3,155		3,486
Restructuring costs	388		564		1,462		5,723
Other expenses	3,971		4,352		12,757		12,639
Total non-interest expense	73,630		77,324		219,950		214,004
Net income before income taxes	41,277		24,257		113,622		81,295
Income tax expense	(186	)	(209	)	(624	)	(713	)
Net income	41,091		24,048		112,998		80,582
Cash dividends declared on preference shares	—		(3,657	)	—		(10,931	)
Preference shares guarantee fee	—		(462	)	—		(1,371	)
Net income attributable to common shareholders	41,091		19,929		112,998		68,280
Earnings per common share
Basic earnings per share	0.75		0.41		2.09		1.45
Diluted earnings per share	0.74		0.41		2.04		1.42
Dividend per share	0.32		0.10		0.96		0.30

The accompanying notes are an integral part of these consolidated financial statements.

3

The Bank of N.T. Butterfield & Son Limited

Consolidated Statements of Comprehensive Income (unaudited)

(In thousands of US dollars)

	Three months ended			Nine months ended
	30 September 2017	30 September 2016		30 September 2017	30 September 2016
Net income	41,091	24,048		112,998	80,582
Other comprehensive income (loss), net of taxes
Net change in unrealised gains and losses on translation of net investment in foreign operations	1,098	(770	)	2,243	(5,207	)
Accretion of net unrealised (gains) losses on held-to-maturity investments transferred from available-for-sale investments	21	21		109	(124	)
Net change in unrealised gains and losses on available-for-sale investments	4,697	(2,146	)	16,046	27,176
Employee benefit plans adjustments	847	(460	)	2,608	(1,477	)
Other comprehensive income (loss), net of taxes	6,663	(3,355	)	21,006	20,368
Total comprehensive income	47,754	20,693		134,004	100,950

The accompanying notes are an integral part of these consolidated financial statements.

4

The Bank of N.T. Butterfield & Son Limited

Consolidated Statements of Changes in Shareholders' Equity (unaudited)

	Nine months ended
	30 September 2017				30 September 2016
	Number of shares		In thousands of US dollars		Number of shares		In thousands of US dollars
Common share capital issued and outstanding
Balance at beginning of period	53,284,872		533		47,293,253		473
Retirement of shares	—		—		(2,393	)	—
Issuance of common shares	1,390,320		14		5,957,447		59
Balance at end of period	54,675,192		547		53,248,307		532
Preference shares
Balance at beginning/end of period	—		—		182,863		2
Additional paid-in capital
Balance at beginning of period			1,142,608				1,225,344
Share-based compensation			5,225				13,464
Share-based settlements			289				(8,152	)
Retirement of common shares			—				(45	)
Cost of issuance of common shares			22				(5,417	)
Issuance of common shares, net of underwriting discounts and commissions			4,313				131,540
Sale of treasury common shares			(1	)			—
Balance at end of period			1,152,456				1,356,734
Accumulated deficit
Balance at beginning of period			(287,677	)			(368,618	)
Net income for period			112,998				80,582
Common share cash dividends declared and paid, $0.96 per share (2016 $0.30 per share)			(52,235	)			(14,025	)
Cash dividends declared on preference shares, nil per share (2016: $60.00 per share)			—				(10,931	)
Preference shares guarantee fee			—				(1,372	)
Balance at end of period			(226,914	)			(314,364	)
Treasury common shares
Balance at beginning of period	2,066		(42	)	924,031		(16,350	)
Purchase of treasury common shares	—		—		97,053		(1,588	)
Sale of treasury common shares	(380	)	13		—		—
Share-based settlements	(1,686	)	29		(558,686	)	9,848
Fractional share payout	—		—		(2	)	—
Balance at end of period	—		—		462,396		(8,090	)
Accumulated other comprehensive income (loss)
Balance at beginning of period			(144,680	)			(90,497	)
Other comprehensive income (loss), net of taxes			21,006				20,368
Balance at end of period			(123,674	)			(70,129	)
Total shareholders' equity			802,415				964,685

The accompanying notes are an integral part of these consolidated financial statements.

5

The Bank of N.T. Butterfield & Son Limited

Consolidated Statements of Cash Flows (unaudited)

(In thousands of US dollars)

	Nine months ended
	30 September 2017		30 September 2016
Cash flows from operating activities
Net income	112,998		80,582
Adjustments to reconcile net income to operating cash flows
Depreciation and amortisation	37,893		38,600
Provision for credit (recovery) losses	(487	)	5,271
Share-based payments and settlements	5,525		13,795
Net realised (gains) losses on available-for-sale investments	(4,246	)	81
(Gain) loss on sale of premises and equipment	—		(8	)
Net (gains) losses on other real estate owned	(74	)	426
(Increase) in carrying value of investments in associates and equity method	(658	)	(948	)
Fair value adjustments of a contingent payment	—		895
Changes in operating assets and liabilities
(Increase) decrease in accrued interest receivable	(2,562	)	(3,566	)
(Increase) decrease in other assets	23,331		(13,222	)
Increase (decrease) in accrued interest payable	550		303
Increase (decrease) in employee benefit plans and other liabilities	2,210		5,675
Cash provided by operating activities	174,480		127,884
Cash flows from investing activities
(Increase) decrease in securities purchased under agreement to resell	(60,782	)	(185,779	)
Net (increase) decrease in short-term investments	314,524		(601,012	)
Net change in trading investments	(387	)	314,891
Available-for-sale investments: proceeds from sale	205,263		32,256
Available-for-sale investments: proceeds from maturities and pay downs	374,074		450,665
Available-for-sale investments: purchases	(569,001	)	(1,666,666	)
Held-to-maturity investments: proceeds from maturities and pay downs	83,765		49,127
Held-to-maturity investments: purchases	(303,352	)	(60,484	)
Net (increase) decrease in loans	(30,027	)	91,123
Additions to premises, equipment and computer software	(12,828	)	(6,461	)
Proceeds from sale of other real estate owned	2,000		5,073
Dividends received on investments in associates and equity method	412		441
Cash disbursed for business acquisition	—		(9,033	)
Cash provided by (used in) investing activities	3,661		(1,585,859	)
Cash flows from financing activities
Net increase (decrease) in demand and term deposit liabilities	(729,355	)	632,563
Proceeds from issuance of common shares, net of underwriting discounts and commissions	13		131,600
Cost of issuance of common shares	—		(5,417	)
Proceeds from loans sold under agreement to repurchase	—		5,152
Cost of repurchase of loans under agreement to repurchase	—		(5,152	)
Common shares repurchased	—		(1,634	)
Proceeds from stock option exercises	4,346		1,366
Cash dividends paid on common shares	(52,235	)	(14,025	)
Cash dividends paid on preference shares	—		(10,972	)
Preference shares guarantee fee paid	—		(1,372	)
Cash provided by (used in) financing activities	(777,231	)	732,109
Net effect of exchange rates on cash due from banks	42,961		(78,235	)
Net increase (decrease) in cash due from banks	(556,129	)	(804,101	)
Cash due from banks at beginning of period	2,101,651		2,288,890
Cash due from banks at end of period	1,545,522		1,484,789

The accompanying notes are an integral part of these consolidated financial statements.

6

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited)

(In thousands of US dollars, unless otherwise stated)

Note 1: Nature of business

The Bank of N.T. Butterfield & Son Limited (“Butterfield”, the “Bank” or the “Company”) is incorporated under the laws of Bermuda and has a banking licence under the Banks and Deposit Companies Act, 1999 (“the Act”). Butterfield is regulated by the Bermuda Monetary Authority (“BMA”), which operates in accordance with Basel principles.

Butterfield is a full service bank and wealth manager headquartered in Hamilton, Bermuda. The Bank operates its business through six geographic segments: Bermuda, the Cayman Islands, and Guernsey, where its principal banking operations are located; and The Bahamas, Switzerland, and the United Kingdom, where it offers specialized financial services. Butterfield offers banking services, comprised of retail and corporate banking, and wealth management, which consists of trust, private banking, and asset management. In the Bermuda and Cayman Islands segments, Butterfield offers both banking and wealth management. In the Guernsey, Bahamas, and Switzerland segments, the Bank offers wealth management. In the United Kingdom segment, the Bank offers residential property lending.

On 16 September 2016, the Bank's common shares began to trade on the New York Stock Exchange under the symbol "NTB". On 21 September 2016, the Bank completed its offering of 5,957,447 common shares, at $23.50 per share. The proceeds, net of the underwriting discounts and commissions, were $131.6 million.

Note 2: Significant accounting policies

The accompanying unaudited interim consolidated financial statements of the Bank have been prepared in accordance with accounting principles generally accepted in the United States of America (“US GAAP”) for interim financial information and should be read in conjunction with the Bank’s audited financial statements for the year ended 31 December 2016.

In the opinion of Management, these unaudited interim consolidated financial statements reflect all adjustments (consisting principally of normal recurring accruals) considered

necessary for a fair statement of the Bank’s financial position and results of operations as at the end of and for the periods presented. The Bank’s results for interim periods are not necessarily indicative of results for the full year.

The preparation of financial statements in conformity with US GAAP requires Management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. While Management believes that the amounts included in the unaudited interim consolidated financial statements reflect its best estimates and assumptions, actual results could differ from those estimates. The Bank’s principal estimates include:

• Allowance for credit losses

• Fair value and impairment of financial instruments

• Impairment of long-lived assets

• Impairment of goodwill

• Employee benefit plans

• Share-based payments

On 1 January 2016, the Bank changed its financial statements' reporting currency from Bermuda dollars to United States ("US") dollars for all periods presented. Assets, liabilities, revenues and expenses denominated in Bermuda dollars are translated to US dollars at par.

The following accounting developments were either issued during the nine months ended 30 September 2017 or are accounting standards pending adoption:

In January 2017, the Financial Accounting Standards Board ("FASB") published Accounting Standards Update No. 2017-03 Accounting Changes and Error Corrections (Topic 250) and Investments - Equity Method and Joint Ventures (Topic 323) - Amendments to SEC Paragraphs Pursuant to Staff Announcement at the September 22, 2016 and November 17, 2016 EITF Meetings. The amendments in this update reflect the SEC Staff Announcement "Disclosure of the Impact that Recently Issued Accounting Standards Will Have on the Financial Statements of a Registrant When Such Standards Are Adopted in a Future Period (in accordance with Staff Accounting Bulletin [SAG] Topic 11.M)". It applies to ASU 2014-09 Revenue from Contracts with Customers (Topic 606), ASU 2016-02 Leases (Topic 842), and ASU 2016-13 Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. The amendments required by this ASU are reflected in the ASU discussions for 2014-09, 2016-02 and 2016-13 that are discussed in the following paragraphs.

In May 2014, the FASB and the International Accounting Standards Board ("IASB") issued converged final standards on revenue recognition. The FASB issued Accounting Standards Update No. 2014-09 Revenue from Contracts with Customers (Topic 606) ("ASU 2014-09"). The core principle of the new standards is that revenue is recognized when a customer obtains control of a good or service compared to the existing model that is based on the transfer of risks and rewards. As a result of the change, revenue could be recognized earlier or later than under current GAAP and in addition, the update could require extensive new disclosures. The effective date for this update is the same as for Accounting Standards Update No. 2015-14 Revenue from Contracts with Customers (Topic 606), Deferral of the Effective Date which defers the effective date of ASU 2014-09 by one year resulting in the effective date being fiscal years, and interim periods with in those fiscal years, beginning after 15 December 2017. Earlier application is permitted only as of annual reporting periods beginning after 15 December 2016, including interim reporting periods within that reporting period. The Bank has determined that this standard will affect non-interest income items that are fee generating but does not expect the impact to have a significant effect. The Bank plans to apply the modified retrospective method for initial transition.

In February 2016, the FASB published Accounting Standards Update No. 2016-02 Leases (Topic 842) which requires the recognition of lease assets and lease liabilities by lessees for those leases classified as operating leases under previous GAAP. This update is effective for public business entities for fiscal years, and interim periods with in those fiscal years, beginning after 15 December 2018. Early application is permitted. The Bank has determined that this standard will have an effect due to the recognition of lease assets and lease liabilities currently classified as operating leases, which will result in the recognition of assets and corresponding lease liabilities.

In June 2016, the FASB published Accounting Standards Update No. 2016-13 Financial Instruments – Credit Losses. The amendments in this update provide a new impairment model, known as the current expected credit loss model that is based on expected losses rather than incurred losses. The amendments in this update are also intended to reduce the complexity and reduce the number of impairment models entities use to account for debt instruments. For public business entities that meet the GAAP definition of an SEC filer, the effective date for this update for fiscal years beginning after 15 December 2019, including interim periods within those fiscal years. The Bank is assessing the impact of the adoption of this guidance.

In January 2017, the FASB published Accounting Standards Update No. 2017-04 Intangibles - Goodwill and Other (Topic 350) - Simplifying the Test for Goodwill Impairment. To simplify the subsequent measurement of goodwill, the FASB eliminated Step 2 from the goodwill impairment test, and therefore an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount and recognize an impairment charge for the amount by which the carrying

7

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

amount exceeds the reporting unit’s fair value. The loss recognized should not exceed the total amount of goodwill allocated to that reporting unit and an entity should consider income tax effects from any tax deductible goodwill on the carrying amount of the reporting unit when measuring the goodwill impairment loss, if applicable. This update should be adopted on a prospective basis by a public business entity that is a US Securities and Exchange Commission filer for its annual or any interim goodwill impairment tests in fiscal years beginning after 15 December 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after 1 January 2017. The Bank is assessing the impact of the adoption of this guidance.

In March 2017, the FASB published Accounting Standards Update No. 2017-07 Compensation - Retirement Benefits (Topic 715) - Improving the Presentation of Net Periodic Pension Cost and Net Periodic Post-retirement Benefit Cost. The amendments in this update require that an employer report the service cost component in the same line item or items as other compensation costs arising from services rendered by the pertinent employees during the period. The other components of net benefit cost are required to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations, if one is presented. The amendments in this update are effective for public business entities for annual periods beginning after 15 December 2017, including interim periods within those annual periods. Early adoption is permitted. The amendments in this update should be applied retrospectively for the presentation of the service cost component and the other components of net periodic pension cost and net periodic post-retirement benefit cost in the income statement and prospectively, on and after the effective date, for the capitalization of the service cost component of net periodic pension cost and net periodic post-retirement benefit in assets. The Bank has determined that this standard will have an effect on the presentation of other components of net benefit cost in the consolidated statements of operations and statements of comprehensive income but the impact is expected to be negligible.

In March 2017, the FASB published Accounting Standards Update No. 2017-08 Receivables—Nonrefundable Fees and Other Costs (Subtopic 310-20) Premium Amortization on Purchased Callable Debt Securities. The amendments in this update shorten the amortization period for certain callable debt securities held at a premium by requiring the premium to be amortized to the earliest call date. The amendments do not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity. The amendments in this update are effective for public business entities for annual periods beginning after 15 December 2018, including interim periods within those annual periods. Early adoption is permitted. The Bank has determined that this standard will apply depending on the investments held at the time of adoption, but does not expect the impact to have a significant effect.

In May 2017, the FASB published Accounting Standards Update No. 2017-09 Compensation - Stock Compensation (Topic 718) - Scope of Modification Accounting . The amendments in this update provide guidance about which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting in Topic 718. The amendments in this update are effective for public business entities for annual periods beginning after 15 December 2017, including interim periods within those annual periods. Early adoption is permitted. As the Bank has outstanding share-based payment awards, it was determined that this standard will apply if any modifications occur in the future.

In August 2017, the FASB published Accounting Standards Update No. 2017-12 Derivatives and Hedging (Topic 815) - Targeted Improvements to Accounting for Hedging Activities. The amendments in this update better align an entity’s risk management activities and financial reporting for hedging relationships through changes to both the designation and measurement guidance for qualifying hedging relationships and the presentation of hedge results.  To meet that objective, the amendments expand and refine hedge accounting for both nonfinancial and financial risk components and align the recognition and presentation of the effects of the hedging instrument and the hedged item in the financial statements.  The amendments in this Update also make certain targeted improvements to simplify the application of hedge accounting guidance and ease the administrative burden of hedge documentation requirements and assessing hedge effectiveness.  The amendments in this update are effective for public business entities for fiscal years beginning after 15 December 2018, and interim periods within those fiscal years. Early application is permitted in any interim period after issuance of the update and all transition requirements and elections should be applied to hedging relationships existing on the date of adoption. For the Bank, the amendments relating to the recognition and presentation of net investment hedges will apply but the impact is expected to be negligible due to the nature of the Bank’s hedging relationships.

8

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Note3: Cash due from banks

	30 September 2017			31 December 2016
	Bermuda	Non-Bermuda	Total	Bermuda	Non-Bermuda	Total
Non-interest bearing
Cash and demand deposits with banks	25,812	64,708	90,520	28,690	82,051	110,741
Interest bearing¹
Demand deposits with banks	161,927	142,395	304,322	138,123	188,314	326,437
Cash equivalents	430,027	720,653	1,150,680	976,557	687,916	1,664,473
Sub-total - Interest bearing	591,954	863,048	1,455,002	1,114,680	876,230	1,990,910
Total cash due from banks	617,766	927,756	1,545,522	1,143,370	958,281	2,101,651

¹ Interest bearing cash due from banks includes certain demand deposits with banks as at 30 September 2017 in the amount of $208.3 million (31 December 2016: $305.3 million) that are earning interest at a negligible rate.

Note 4: Short-term investments

	30 September 2017			31 December 2016
	Bermuda	Non-Bermuda	Total	Bermuda	Non-Bermuda	Total
Unrestricted
Maturing within three months	60,114	112,823	172,937	36,953	80,360	117,313
Maturing between three to six months	—	649	649	343,723	40,825	384,548
Maturing between six to twelve months	—	3,541	3,541	—	—	—
Total unrestricted short-term investments	60,114	117,013	177,127	380,676	121,185	501,861
Affected by drawing restrictions related to minimum reserve and derivative margin requirements
Interest earning demand deposits	29,791	1,259	31,050	17,894	—	17,894
Total short-term investments	89,905	118,272	208,177	398,570	121,185	519,755

9

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Note 5: Investment in securities

Amortised Cost, Carrying Amount and Fair Value

On the consolidated balance sheets, trading and available-for-sale ("AFS") investments are carried at fair value and held-to-maturity ("HTM") investments are carried at amortised cost.

	30 September 2017					31 December 2016
	Amortised  cost	Gross  unrealised  gains	Gross  unrealised  losses		Fair value	Amortised  cost	Gross  unrealised  gains	Gross  unrealised  losses		Fair value
Trading
Mutual funds	5,724	1,492	(516	)	6,700	5,724	1,091	(502	)	6,313
Total trading	5,724	1,492	(516	)	6,700	5,724	1,091	(502	)	6,313
Available-for-sale
US government and federal agencies	2,670,253	10,637	(16,041	)	2,664,849	2,448,207	6,773	(24,578	)	2,430,402
Non-US governments debt securities	27,194	172	(384	)	26,982	27,895	178	(1,053	)	27,020
Corporate debt securities	278,601	626	(334	)	278,893	513,881	2,139	(1,545	)	514,475
Asset-backed securities - Student loans	13,290	—	(797	)	12,493	13,290	—	(797	)	12,493
Commercial mortgage-backed securities	150,920	292	(454	)	150,758	151,855	43	(1,352	)	150,546
Residential mortgage-backed securities	194,309	609	(958	)	193,960	200,288	56	(2,542	)	197,802
Total available-for-sale	3,334,567	12,336	(18,968	)	3,327,935	3,355,416	9,189	(31,867	)	3,332,738
Held-to-maturity¹
US government and federal agencies	1,278,152	7,197	(7,139	)	1,278,210	1,061,103	2,528	(16,803	)	1,046,828
Total held-to-maturity	1,278,152	7,197	(7,139	)	1,278,210	1,061,103	2,528	(16,803	)	1,046,828

¹ For the nine months ended30 September 2017 and the year ended 31 December 2016, non-credit impairments recognised in accumulated other comprehensive loss ("AOCL") for HTM investments were nil.

Investments with Unrealised Loss Positions

The Bank does not believe that the AFS and HTM investment securities that were in an unrealised loss position as of 30 September 2017 (and 31 December 2016), which were comprised of 141 securities representing 51% of the AFS and HTM portfolios' fair value (31 December 2016: 170 and 76%, respectively), represent an other-than-temporary impairment ("OTTI"). Total gross unrealised losses were 1.1% of the fair value of affected securities (31 December 2016: 1.5%) and were attributable primarily to changes in market interest rates, relative to when the investment securities were purchased, and not due to the credit quality of the investment securities. The following describes the processes for identifying credit impairment in security types with the most significant unrealised losses as shown in the preceding tables.

Management believes that all the US government and federal agencies securities do not have any credit losses, given the explicit and implicit guarantees provided by the US federal government.

Management believes that all the Non-US governments debt securities securities do not have any credit losses, given the explicit guarantee provided by the issuing government.

The unrealised losses in Corporate debt securities relate primarily to 5 debt securities that are all of investment grade with ratings ranging from A- to AA- . Management believes that the value of these securities will recover and the current unrealised loss positions are a result of interest rate movements.

Investments in Asset-backed securities - Student loans are composed primarily of securities collateralised by Federal Family Education Loan Program loans (“FFELP loans”). FFELP loans benefit from a US federal government guarantee of at least 97% of defaulted principal and accrued interest, with additional credit support provided in the form of over-collateralisation, subordination and excess spread, which collectively total in excess of 100%. Accordingly, the vast majority of FFELP loan-backed securities are not exposed to traditional consumer credit risk.

Investments in Commercial mortgage-backed securities relate to 7 senior securities rated AAA and one senior security rated A that possess significant subordination, a form of credit enhancement expressed hereafter as the percentage of pool losses that can occur before the senior securities held by the Bank will incur its first dollar of principal loss. No credit losses were recognised on these securities as there are no delinquencies over 30 days on the underlying mortgages and on 7 of the securities, the weighted average credit support and the weighted average loan-to-value ratios ("LTV") range from 5% - 37% and 48% - 62%, respectively. The one remaining security is without explicit credit support and has an LTV of 30%.

Investments in Residential mortgage-backed securities relate to 7 securities which are rated AAA and possess significant credit enhancement as described above. No credit losses were recognised on these securities as the weighted average credit support and the weighted average LTV ratios range from 10% - 19% and 55% - 67%, respectively. Current credit support is significantly greater than any delinquencies experienced on the underlying mortgages.

10

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

In the following tables, debt securities with unrealised losses that are not deemed to be OTTI are categorised as being in a loss position for "less than 12 months" or "12 months or more" based on the point in time that the fair value most recently declined below the amortised cost basis. During 2016, Management revised the methodology for considering the time period during which an investment has been in an unrealized loss by looking at monthly positions rather than annually.

	Less than 12 months			12 months or more
30 September 2017	Fair value	Gross  unrealised  losses		Fair value	Gross unrealised losses		Total  fair value	Total gross unrealised losses
Available-for-sale securities with unrealised losses
US government and federal agencies	1,021,712	(12,982	)	499,496	(3,059	)	1,521,208	(16,041	)
Non-US governments debt securities	—	—		22,360	(384	)	22,360	(384	)
Corporate debt securities	25,577	(72	)	39,840	(262	)	65,417	(334	)
Asset-backed securities - Student loans	—	—		12,493	(797	)	12,493	(797	)
Commercial mortgage-backed securities	79,129	(327	)	9,415	(127	)	88,544	(454	)
Residential mortgage-backed securities	84,676	(542	)	17,347	(416	)	102,023	(958	)
Total available-for-sale securities with unrealised losses	1,211,094	(13,923	)	600,951	(5,045	)	1,812,045	(18,968	)
Held-to-maturity securities with unrealised losses
US government and federal agencies	546,657	(7,139	)	—	—		546,657	(7,139	)
	Less than 12 months			12 months or more
31 December 2016	Fair value	Gross  unrealised  losses		Fair value	Gross unrealised losses		Total fair value	Total gross unrealised losses
Available-for-sale securities with unrealised losses
US government and federal agencies	1,558,636	(21,932	)	266,094	(2,646	)	1,824,730	(24,578	)
Non-US governments debt securities	21,681	(1,053	)	—	—		21,681	(1,053	)
Corporate debt securities	214,506	(1,545	)	—	—		214,506	(1,545	)
Asset-backed securities - Student loans	—	—		12,493	(797	)	12,493	(797	)
Commercial mortgage-backed securities	134,195	(1,352	)	—	—		134,195	(1,352	)
Residential mortgage-backed securities	181,556	(2,542	)	—	—		181,556	(2,542	)
Total available-for-sale securities with unrealised losses	2,110,574	(28,424	)	278,587	(3,443	)	2,389,161	(31,867	)
Held-to-maturity securities with unrealised losses
US government and federal agencies	937,080	(16,803	)	—	—		937,080	(16,803	)

11

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Investment Maturities

The following table presents the remaining term to contractual maturity of the Bank’s securities. The actual maturities may differ as certain securities offer prepayment options to the borrowers. During 2017, management revised the following disclosure so that securities not due at a single maturity date (primarily asset-backed and mortgage-backed securities) are presented as such.

	Remaining term to maturity
30 September 2017	Within  3 months	3 to 12  months	1 to 5  years	5 to 10  years	No specific or single  maturity	Carrying  amount
Trading
Mutual funds	—	—	—	—	6,700	6,700
Available-for-sale
US government and federal agencies	—	—	—	—	2,664,849	2,664,849
Non-US governments debt securities	688	688	3,246	22,360	—	26,982
Corporate debt securities	34,225	123,721	120,947	—	—	278,893
Asset-backed securities - Student loans	—	—	—	—	12,493	12,493
Commercial mortgage-backed securities	—	—	—	—	150,758	150,758
Residential mortgage-backed securities	—	—	—	—	193,960	193,960
Total available-for-sale	34,913	124,409	124,193	22,360	3,022,060	3,327,935
Held-to-maturity
US government and federal agencies	—	—	—	—	1,278,152	1,278,152
Total investments	34,913	124,409	124,193	22,360	4,306,912	4,612,787
Total by currency
US dollars	34,913	124,409	124,193	22,360	4,306,704	4,612,579
Other	—	—	—	—	208	208
Total investments	34,913	124,409	124,193	22,360	4,306,912	4,612,787

Pledged Investments

The Bank pledges certain US government and federal agencies investment securities to further secure the Bank's issued customer deposit products. The secured party does not have the right to sell or repledge the collateral.

	30 September 2017		31 December 2016
Pledged Investments	Amortised  cost	Fair  value	Amortised  cost	Fair  value
Available-for-sale	157,965	159,816	211,342	212,995
Held-to-maturity	193,576	193,445	320,942	315,635

Sale Proceeds and Realised Gains and Losses of AFS Securities	Nine months ended
	30 September 2017
	Sale proceeds	Gross realised gains	Gross realised (losses)
Corporate debt securities	202,706	1,689	—
Pass-through note	2,557	2,557	—
Net realised gains (losses) recognised in net income	205,263	4,246	—

	Nine months ended
	30 September 2016
	Sale proceeds	Gross realised gains	Gross realised (losses)
US government and federal agencies	32,256	—	(81	)

Taxability of Interest Income

None of the investments' interest income have received a specific preferential income tax treatment in any of the jurisdictions in which the Bank owns investments.

12

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Note 6: Loans

The "Bermuda" and "Non-Bermuda" classifications purpose is to reflect management segment reporting as described in Note 12: Segmented information.

The principal means of securing residential mortgages, personal, credit card and business loans are entitlements over assets and guarantees. Mortgage loans are generally repayable over periods of up to thirty years and personal, business and government loans are generally repayable over terms not exceeding five years. Amounts owing on credit cards are revolving and typically a minimum amount is due within 30 days from billing. The effective yield on total loans as at 30 September 2017 is 5.06% (31 December 2016: 4.78%).

	30 September 2017						31 December 2016
	Bermuda		Non-Bermuda		Total		Bermuda		Non-Bermuda		Total
Commercial loans
Government	91,882		15,661		107,543		94,504		17,908		112,412
Commercial and industrial	165,664		168,843		334,507		130,171		201,652		331,823
Commercial overdrafts	23,058		2,875		25,933		22,594		2,767		25,361
Total gross commercial loans	280,604		187,379		467,983		247,269		222,327		469,596
Less specific allowance for credit losses	(570	)	—		(570	)	(577	)	—		(577	)
Net commercial loans	280,034		187,379		467,413		246,692		222,327		469,019
Commercial real estate loans
Commercial mortgage	352,517		203,585		556,102		363,982		217,640		581,622
Construction	24,500		20,813		45,313		24,500		4,385		28,885
Total gross commercial real estate loans	377,017		224,398		601,415		388,482		222,025		610,507
Less specific allowance for credit losses	(750	)	(33	)	(783	)	(750	)	—		(750	)
Net commercial real estate loans	376,267		224,365		600,632		387,732		222,025		609,757
Consumer loans
Automobile financing	13,013		6,380		19,393		13,077		6,905		19,982
Credit card	57,139		20,707		77,846		57,730		20,811		78,541
Overdrafts	2,147		2,535		4,682		2,380		3,202		5,582
Other consumer	32,141		54,461		86,602		30,798		63,186		93,984
Total gross consumer loans	104,440		84,083		188,523		103,985		94,104		198,089
Less specific allowance for credit losses	(274	)	—		(274	)	(275	)	(3	)	(278	)
Net consumer loans	104,166		84,083		188,249		103,710		94,101		197,811
Residential mortgage loans	1,168,077		1,280,093		2,448,170		1,205,468		1,131,065		2,336,533
Less specific allowance for credit losses	(10,756	)	(916	)	(11,672	)	(9,559	)	(574	)	(10,133	)
Net residential mortgage loans	1,157,321		1,279,177		2,436,498		1,195,909		1,130,491		2,326,400
Total gross loans	1,930,138		1,775,953		3,706,091		1,945,204		1,669,521		3,614,725
Less specific allowance for credit losses	(12,350	)	(949	)	(13,299	)	(11,161	)	(577	)	(11,738	)
Less general allowance for credit losses	(21,469	)	(7,222	)	(28,691	)	(24,950	)	(7,559	)	(32,509	)
Net loans	1,896,319		1,767,782		3,664,101		1,909,093		1,661,385		3,570,478

13

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Age Analysis of Past Due Loans (Including Non-Accrual Loans)

The following tables summarise the past due status of the loans. The aging of past due amounts are determined based on the contractual delinquency status of payments under the loan and this aging may be affected by the timing of the last business day at period end. Loans less than 30 days past due are included in current loans.

30 September 2017	30 - 59 days	60 - 89 days	More than 90 days	Total past  due loans	Total current	Total loans
Commercial loans
Government	—	—	—	—	107,543	107,543
Commercial and industrial	1,447	—	9,293	10,740	323,767	334,507
Commercial overdrafts	—	—	1	1	25,932	25,933
Total commercial loans	1,447	—	9,294	10,741	457,242	467,983
Commercial real estate loans
Commercial mortgage	390	—	12,174	12,564	543,538	556,102
Construction	—	—	—	—	45,313	45,313
Total commercial real estate loans	390	—	12,174	12,564	588,851	601,415
Consumer loans
Automobile financing	56	32	245	333	19,060	19,393
Credit card	240	125	286	651	77,195	77,846
Overdrafts	—	—	3	3	4,679	4,682
Other consumer	1,022	138	462	1,622	84,980	86,602
Total consumer loans	1,318	295	996	2,609	185,914	188,523
Residential mortgage loans	18,055	5,794	39,088	62,937	2,385,233	2,448,170
Total gross loans	21,210	6,089	61,552	88,851	3,617,240	3,706,091
31 December 2016	30 - 59 days	60 - 89 days	More than 90 days	Total past  due loans	Total current	Total loans
Commercial loans
Government	—	—	—	—	112,412	112,412
Commercial and industrial	2,712	—	584	3,296	328,527	331,823
Commercial overdrafts	—	—	2	2	25,359	25,361
Total commercial loans	2,712	—	586	3,298	466,298	469,596
Commercial real estate loans
Commercial mortgage	377	—	5,964	6,341	575,281	581,622
Construction	175	—	—	175	28,710	28,885
Total commercial real estate loans	552	—	5,964	6,516	603,991	610,507
Consumer loans
Automobile financing	86	23	225	334	19,648	19,982
Credit card	366	177	392	935	77,606	78,541
Overdrafts	—	—	17	17	5,565	5,582
Other consumer	720	564	999	2,283	91,701	93,984
Total consumer loans	1,172	764	1,633	3,569	194,520	198,089
Residential mortgage loans	26,122	4,345	50,262	80,729	2,255,804	2,336,533
Total gross loans	30,558	5,109	58,445	94,112	3,520,613	3,614,725

Loans' Credit Quality

The four credit quality classifications set out in the following tables (which exclude purchased credit-impaired loans) are defined below and describe the credit quality of the Bank's lending portfolio. These classifications each encompass a range of more granular, internal credit rating grades assigned.

A pass loan shall mean a loan that is expected to be repaid as agreed. A loan is classified as pass where the Bank is not expected to face repayment difficulties because the present and projected cash flows are sufficient to repay the debt and the repayment schedule as established by the agreement is being followed.

14

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

A special mention loan shall mean a loan under close monitoring by the Bank’s management. Loans in this category are currently protected and still performing (current with respect to interest and principal payments), but are potentially weak and present an undue credit risk exposure, but not to the point of justifying a classification of substandard.

A substandard loan shall mean a loan whose evident unreliability makes repayment doubtful and there is a threat of loss to the Bank unless the unreliability is averted.

A non-accrual loan shall mean either management is of the opinion full payment of principal or interest is in doubt or when principal or interest is 90 days past due and for residential mortgage loans which are not well secured and in the process of collection.

30 September 2017	Pass	Special  mention	Substandard	Non-accrual	Total gross  recorded  investments
Commercial loans
Government	101,918	—	5,625	—	107,543
Commercial and industrial	319,193	4,901	2,920	7,493	334,507
Commercial overdrafts	21,532	3,649	751	1	25,933
Total commercial loans	442,643	8,550	9,296	7,494	467,983
Commercial real estate loans
Commercial mortgage	483,894	57,307	9,628	5,273	556,102
Construction	45,313	—	—	—	45,313
Total commercial real estate loans	529,207	57,307	9,628	5,273	601,415
Consumer loans
Automobile financing	18,857	266	22	248	19,393
Credit card	77,560	—	286	—	77,846
Overdrafts	4,611	68	—	3	4,682
Other consumer	84,543	1,482	88	489	86,602
Total consumer loans	185,571	1,816	396	740	188,523
Residential mortgage loans	2,303,121	35,238	74,611	35,200	2,448,170
Total gross recorded loans	3,460,542	102,911	93,931	48,707	3,706,091
31 December 2016	Pass	Special  mention	Substandard	Non-accrual	Total gross  recorded  investments
Commercial loans
Government	104,611	301	7,500	—	112,412
Commercial and industrial	325,924	4,122	1,194	583	331,823
Commercial overdrafts	22,976	2,145	238	2	25,361
Total commercial loans	453,511	6,568	8,932	585	469,596
Commercial real estate loans
Commercial mortgage	502,918	71,038	1,702	5,964	581,622
Construction	28,885	—	—	—	28,885
Total commercial real estate loans	531,803	71,038	1,702	5,964	610,507
Consumer loans
Automobile financing	19,309	360	28	285	19,982
Credit card	78,149	—	392	—	78,541
Overdrafts	5,533	32	—	17	5,582
Other consumer	91,348	1,564	360	712	93,984
Total consumer loans	194,339	1,956	780	1,014	198,089
Residential mortgage loans	2,200,807	36,739	58,087	40,900	2,336,533
Total gross recorded loans	3,380,460	116,301	69,501	48,463	3,614,725

15

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Evaluation of Loans For Impairment	30 September 2017		31 December 2016
	Individually  evaluated	Collectively  evaluated	Individually  evaluated	Collectively  evaluated
Commercial	14,938	453,045	9,686	459,910
Commercial real estate	21,806	579,609	21,893	588,614
Consumer	1,184	187,339	1,746	196,343
Residential mortgage	106,613	2,341,557	113,065	2,223,468
Total gross loans	144,541	3,561,550	146,390	3,468,335

Changes in General and Specific Allowances For Credit Losses

	Nine months ended 30 September 2017
	Commercial		Commercial  real estate		Consumer		Residential  mortgage		Total
Allowances at beginning of period	3,377		16,224		965		23,681		44,247
Provision taken (released)	420		(3,041	)	468		1,666		(487	)
Recoveries	—		—		796		159		955
Charge-offs	(35	)	—		(1,499	)	(1,302	)	(2,836	)
Other	6		25		2		78		111
Allowances at end of period	3,768		13,208		732		24,282		41,990
Allowances at end of period: individually evaluated for impairment	570		783		274		11,672		13,299
Allowances at end of period: collectively evaluated for impairment	3,198		12,425		458		12,610		28,691

	Nine months ended 30 September 2016
	Commercial		Commercial  real estate		Consumer		Residential  mortgage		Total
Allowances at beginning of period	8,723		6,512		2,763		31,304		49,302
Provision taken	1,945		2,155		(376	)	1,547		5,271
Recoveries	72		12		989		67		1,140
Charge-offs	(133	)	(1,774	)	(1,160	)	(3,040	)	(6,107	)
Other	(22	)	(148	)	(62	)	(180	)	(412	)
Allowances at end of period	10,585		6,757		2,154		29,698		49,194
Allowances at end of period: individually evaluated for impairment	590		3,352		274		11,567		15,783
Allowances at end of period: collectively evaluated for impairment	9,995		3,405		1,880		18,131		33,411

16

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Non-Performing Loans (excluding purchased credit-impaired loans)	30 September 2017			31 December 2016
	Non-accrual	Past  due more than 90 days and accruing	Total non- performing  loans	Non-accrual	Past  due more than 90 days and accruing	Total non- performing  loans
Commercial loans
Commercial and industrial	7,493	1,800	9,293	583	—	583
Commercial overdrafts	1	—	1	2	—	2
Total commercial loans	7,494	1,800	9,294	585	—	585
Commercial real estate loans
Commercial mortgage	5,273	6,901	12,174	5,964	—	5,964
Consumer loans
Automobile financing	248	—	248	285	2	287
Credit card	—	286	286	—	392	392
Overdrafts	3	—	3	17	—	17
Other consumer	489	23	512	712	300	1,012
Total consumer loans	740	309	1,049	1,014	694	1,708
Residential mortgage loans	35,200	4,072	39,272	40,900	8,476	49,376
Total non-performing loans	48,707	13,082	61,789	48,463	9,170	57,633

Impaired Loans (excluding purchased credit-impaired loans)

A loan is considered to be impaired when, based on current information and events, the Bank determines that it will not be able to collect all amounts due according to the original loan contract, including scheduled interest payments. Impaired loans include all non-accrual loans and all loans modified in a troubled debt restructuring (‘‘TDR’’) even if full collectability is expected following the restructuring. During the nine months ended 30 September 2017, the amount of gross interest income that would have been recorded had impaired loans been current was $1.8 million (30 September 2016: $1.8 million).

	Impaired loans with an allowance				Gross  recorded  investment of  impaired loans  without an  allowance	Total impaired loans
30 September 2017	Gross  recorded  investment	Specific  allowance		Net loans		Gross  recorded  investment	Specific  allowance		Net loans
Commercial loans
Commercial and industrial	570	(570	)	—	7,934	8,504	(570	)	7,934
Commercial overdrafts	—	—		—	362	362	—		362
Total commercial loans	570	(570	)	—	8,296	8,866	(570	)	8,296
Commercial real estate loans
Commercial mortgage	2,101	(783	)	1,318	5,899	8,000	(783	)	7,217
Consumer loans
Automobile financing	143	(75	)	68	105	248	(75	)	173
Overdrafts	—	—		—	3	3	—		3
Other consumer	199	(199	)	—	290	489	(199	)	290
Total consumer loans	342	(274	)	68	398	740	(274	)	466
Residential mortgage loans	49,087	(11,408	)	37,679	48,705	97,792	(11,408	)	86,384
Total impaired loans	52,100	(13,035	)	39,065	63,298	115,398	(13,035	)	102,363

Specific allowance excludes $0.3 million recognized relating to purchased credit-impaired loans.

17

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

	Impaired loans with an allowance				Gross  recorded  investment of  impaired loans  without an  allowance	Total impaired loans
31 December 2016	Gross  recorded  investment	Specific  allowance		Net loans		Gross  recorded  investment	Specific  allowance		Net loans
Commercial loans
Commercial and industrial	579	(577	)	2	1,048	1,627	(577	)	1,050
Commercial overdrafts	—	—		—	2	2	—		2
Total commercial loans	579	(577	)	2	1,050	1,629	(577	)	1,052
Commercial real estate loans
Commercial mortgage	1,722	(750	)	972	5,944	7,666	(750	)	6,916
Consumer loans
Automobile financing	155	(75	)	80	130	285	(75	)	210
Overdrafts	—	—		—	17	17	—		17
Other consumer	253	(203	)	50	459	712	(203	)	509
Total consumer loans	408	(278	)	130	606	1,014	(278	)	736
Residential mortgage loans	30,330	(9,961	)	20,369	52,043	82,373	(9,961	)	72,412
Total impaired loans	33,039	(11,566	)	21,473	59,643	92,682	(11,566	)	81,116

Specific allowance excludes $0.2 million recognized relating to purchased credit-impaired loans.

Average Impaired Loan Balances and Related Recognised Interest Income

	30 September 2017		31 December 2016
	Average gross  recorded  investment	Interest  income  recognised¹	Average gross  recorded  investment	Interest  income  recognised¹
Commercial loans
Commercial and industrial	5,066	47	1,661	64
Commercial overdrafts	182	9	14	—
Total commercial loans	5,248	56	1,675	64
Commercial real estate loans
Commercial mortgage	7,833	134	15,496	237
Consumer loans
Automobile financing	267	—	192	—
Overdrafts	10	—	14	—
Other consumer	601	—	1,043	—
Total consumer loans	878	—	1,249	—
Residential mortgage loans	90,083	3,351	81,901	2,201
Total impaired loans	104,042	3,541	100,321	2,502

¹ All interest income recognised on impaired loans relate to loans previously modified in a TDR.

Loans Modified in a TDR

As at 30 September 2017, the Bank had nil loans that were modified in a TDR during the preceding 12 months that subsequently defaulted (i.e. 90 days or more past due following a modification). As at 31 December 2016, the Bank had one loan which was formerly a residential mortgage that was modified in a TDR during the preceding 12 months that subsequently defaulted with a recorded investment of $0.9 million.

18

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

TDRs entered into during the period

	Nine months ended 30 September 2017
	Number of  contracts	Pre- modification  recorded investment	Modification: interest  capitalisation	Post- modification   recorded  investment
Commercial loans	2	386	—	386
Commercial real estate loans	2	1,112	—	1,112
Residential mortgage loans	33	20,382	1,276	21,658
Total loans modified in a TDR	37	21,880	1,276	23,156

	Nine months ended 30 September 2016
	Number of contracts	Pre- modification recorded investment	Modification: interest capitalisation	Post- modification recorded investment
Residential mortgage loans	16	9,722	81	9,803
Total loans modified in a TDR	16	9,722	81	9,803

	30 September 2017		31 December 2016
TDRs outstanding	Accrual	Non-accrual	Accrual	Non-accrual
Commercial loans	1,372	—	1,044	—
Commercial real estate loans	2,727	1,487	1,702	1,539
Residential mortgage loans	62,592	5,604	41,473	5,006
Total TDRs outstanding	66,691	7,091	44,219	6,545

Purchased Credit-Impaired Loans

The Bank acquired certain credit-impaired loans as part of the 7 November 2014 acquisition of substantially all retail loans of HSBC Bank (Cayman) Limited. The accretable difference (or "accretable yield") represents the excess of a loan's cash flows expected to be collected over the loan's carrying amount.

	Nine months ended 30 September 2017
	Contractual  principal		Non-accretable difference		Accretable  difference		Carrying  amount
Balance at beginning of period	8,016		(1,617	)	(811	)	5,588
Advances and increases in cash flows expected to be collected	34		37		(37	)	34
Reductions resulting from repayments	(1,555	)	65		148		(1,342	)
Reductions resulting from changes in allowances for credit losses	—		(92	)	—		(92	)
Reductions resulting from charge-offs	(470	)	362		—		(108	)
Balance at end of period	6,025		(1,245	)	(700	)	4,080

	Year ended 31 December 2016
	Contractual  principal		Non-accretable difference		Accretable  difference		Carrying  amount
Balance at beginning of period	8,709		(2,248	)	(631	)	5,830
Advances and increases in cash flows expected to be collected	166		408		(396	)	178
Reductions resulting from repayments	(464	)	—		216		(248	)
Reductions resulting from changes in allowances for credit losses	—		(172	)	—		(172	)
Reductions resulting from charge-offs	(395	)	395		—		—
Balance at end of period	8,016		(1,617	)	(811	)	5,588

19

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Note 7: Credit risk concentrations

Concentrations of credit risk in the lending and off-balance sheet credit-related arrangements portfolios arise when a number of customers are engaged in similar business activities, are in the same geographic region, or when they have similar economic features that would cause their ability to meet contractual obligations to be similarly affected by changes in economic conditions. The Bank regularly monitors various segments of its credit risk portfolio to assess potential concentrations of risks and to obtain collateral when deemed necessary. In the Bank's commercial portfolio, risk concentrations are evaluated primarily by industry and by geographic region of loan origination. In the consumer portfolio, concentrations are evaluated primarily by products. Credit exposures include loans, guarantees and acceptances, letters of credit and commitments for undrawn lines of credit. Unconditionally cancellable credit cards and overdraft lines of credit are excluded from the tables below.

The following tables summarise the credit exposure of the Bank by business sector and by geographic region. The on-balance sheet exposure amounts disclosed are net of specific allowances and the off-balance sheet exposure amounts disclosed are gross of collateral held. During 2016, Management revised the method for determining the geographic location of cash and cash equivalents from the location of the branch to the location of the head office holding custody.

	30 September 2017					31 December 2016
Business sector	Loans		Off-balance  sheet	Total credit  exposure		Loans		Off-balance  sheet	Total credit  exposure
Banks and financial services	396,453		390,367	786,820		321,680		393,148	714,828
Commercial and merchandising	277,316		192,551	469,867		266,976		139,264	406,240
Governments	108,113		1,012	109,125		112,857		709	113,566
Individuals	2,263,402		98,034	2,361,436		2,299,852		108,810	2,408,662
Primary industry and manufacturing	49,757		7,951	57,708		34,304		2,095	36,399
Real estate	447,190		14,828	462,018		418,946		12,467	431,413
Hospitality industry	144,952		175	145,127		142,707		4,353	147,060
Transport and communication	5,609		—	5,609		5,665		—	5,665
Sub-total	3,692,792		704,918	4,397,710		3,602,987		660,846	4,263,833
General allowance	(28,691	)	—	(28,691	)	(32,509	)	—	(32,509	)
Total	3,664,101		704,918	4,369,019		3,570,478		660,846	4,231,324

	30 September 2017						31 December 2016
Geographic region	Cash due from banks, resell agreements and short-term investments	Loans		Off-balance  sheet	Total credit  exposure		Cash due from banks, resell agreements and short-term investments	Loans		Off-balance  sheet	Total credit  exposure
Australia	112,515	—		—	112,515		14,242	—		—	14,242
Barbados	—	5,625		—	5,625		—	7,500		—	7,500
Belgium	3,471	—		—	3,471		1,722	—		—	1,722
Bermuda	20,123	2,091,306		348,487	2,459,916		23,505	2,105,195		322,554	2,451,254
Canada	434,248	—		—	434,248		514,861	—		—	514,861
Cayman	55,693	711,515		236,566	1,003,774		40,356	706,994		231,211	978,561
Guernsey	1	293,518		49,802	343,321		1	337,037		107,081	444,119
Japan	21,716	—		—	21,716		20,963	—		—	20,963
New Zealand	703	—		—	703		785	—		—	785
Norway	490	—		—	490		42,477	—		—	42,477
Saint Lucia	—	65,000		—	65,000		—	65,117		—	65,117
South Africa	1,723	—		—	1,723		71	—		—	71
Sweden	1,092	—		—	1,092		1,550	—		—	1,550
Switzerland	5,967	—		—	5,967		5,833	—		—	5,833
The Bahamas	1,718	19,719		—	21,437		2,822	23,860		—	26,682
United Kingdom	819,241	506,109		70,063	1,395,413		1,224,263	357,284		—	1,581,547
United States	484,522	—		—	484,522		876,642	—		—	876,642
Other	71	—		—	71		126	—		—	126
Sub-total	1,963,294	3,692,792		704,918	6,361,004		2,770,219	3,602,987		660,846	7,034,052
General allowance	—	(28,691	)	—	(28,691	)	—	(32,509	)	—	(32,509	)
Total	1,963,294	3,664,101		704,918	6,332,313		2,770,219	3,570,478		660,846	7,001,543

20

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Note 8: Customer deposits and deposits from banks

By Maturity
	Demand			Term
30 September 2017	Non-interest  bearing	Interest bearing	Total demand deposits	Within 3  months	3 to 6  months	6 to 12  months	After 12 months	Total term deposits	Total deposits
Customers
Bermuda
Demand or less than $100k¹	1,752,084	2,760,602	4,512,686	10,828	8,134	8,195	14,673	41,830	4,554,516
Term - $100k or more	N/A	N/A	—	462,720	37,639	47,498	40,353	588,210	588,210
Total Bermuda	1,752,084	2,760,602	4,512,686	473,548	45,773	55,693	55,026	630,040	5,142,726
Non-Bermuda
Demand or less than $100k	619,003	2,752,714	3,371,717	21,904	3,677	4,123	974	30,678	3,402,395
Term and $100k or more	N/A	N/A	—	627,002	128,177	84,744	9,600	849,523	849,523
Total non-Bermuda	619,003	2,752,714	3,371,717	648,906	131,854	88,867	10,574	880,201	4,251,918
Total customer deposits	2,371,087	5,513,316	7,884,403	1,122,454	177,627	144,560	65,600	1,510,241	9,394,644
Banks
Bermuda
Demand or less than $100k	332	—	332	34	—	—	—	34	366
Non-Bermuda
Demand or less than $100k	—	7,976	7,976	—	—	—	—	—	7,976
Term and $100k or more	N/A	N/A	—	4,375	—	100	—	4,475	4,475
Total non-Bermuda	—	7,976	7,976	4,375	—	100	—	4,475	12,451
Total bank deposits	332	7,976	8,308	4,409	—	100	—	4,509	12,817
Total deposits	2,371,419	5,521,292	7,892,711	1,126,863	177,627	144,660	65,600	1,514,750	9,407,461
	Demand			Term
31 December 2016	Non-interest  bearing	Interest bearing	Total demand deposits	Within 3  months	3 to 6  months	6 to 12  months	After 12 months	Total term deposits	Total deposits
Customers
Bermuda
Demand or less than $100k¹	1,733,684	3,013,401	4,747,085	14,091	4,309	9,068	16,380	43,848	4,790,933
Term - $100k or more	N/A	N/A	—	1,013,159	37,550	60,952	44,507	1,156,168	1,156,168
Total Bermuda	1,733,684	3,013,401	4,747,085	1,027,250	41,859	70,020	60,887	1,200,016	5,947,101
Non-Bermuda
Demand or less than $100k	651,329	2,794,799	3,446,128	20,295	4,108	4,145	783	29,331	3,475,459
Term and $100k or more	N/A	N/A	—	440,674	119,519	17,590	9,510	587,293	587,293
Total non-Bermuda	651,329	2,794,799	3,446,128	460,969	123,627	21,735	10,293	616,624	4,062,752
Total customer deposits	2,385,013	5,808,200	8,193,213	1,488,219	165,486	91,755	71,180	1,816,640	10,009,853
Banks
Bermuda
Demand or less than $100k	340	—	340	4	—	—	—	4	344
Non-Bermuda
Demand or less than $100k	—	19,751	19,751	—	—	—	—	—	19,751
Term and $100k or more	N/A	N/A	—	3,601	100	—	—	3,701	3,701
Total non-Bermuda	—	19,751	19,751	3,601	100	—	—	3,701	23,452
Total bank deposits	340	19,751	20,091	3,605	100	—	—	3,705	23,796
Total deposits	2,385,353	5,827,951	8,213,304	1,491,824	165,586	91,755	71,180	1,820,345	10,033,649

¹ As at 30 September 2017, $225 million (31 December 2016: $150 million) of the Demand deposits - Interest bearing bear a special negligible interest rate. The weighted-average interest rate on interest-bearing demand deposits as at 30 September 2017 is 0.03% (31 December 2016: 0.06%).

21

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

By Type and Segment	30 September 2017			31 December 2016
	Payable on demand	Payable on a fixed date	Total	Payable on demand	Payable on a fixed date	Total
Bermuda
Customers	4,512,685	630,041	5,142,726	4,747,086	1,200,016	5,947,102
Banks	332	34	366	341	4	345
Cayman
Customers	2,495,007	405,928	2,900,935	2,606,305	417,750	3,024,055
Banks	7,976	4,475	12,451	19,615	3,701	23,316
Guernsey
Customers	838,415	474,272	1,312,687	781,119	185,457	966,576
The Bahamas
Customers	38,192	—	38,192	58,703	13,417	72,120
United Kingdom
Customers	104	—	104	—	—	—
Banks	—	—	—	135	—	135
Total Customers	7,884,403	1,510,241	9,394,644	8,193,213	1,816,640	10,009,853
Total Banks	8,308	4,509	12,817	20,091	3,705	23,796
Total deposits	7,892,711	1,514,750	9,407,461	8,213,304	1,820,345	10,033,649

Note 9: Employee benefit plans

The Bank maintains trusteed pension plans including non-contributory defined benefit plans and a number of defined contribution plans, and provides post-retirement medical benefits to its qualifying retirees. The expense related to these plans is included in the consolidated statements of operations under Salaries and other employee benefits. The defined benefit provisions under the pension plans are generally based upon years of service and average salary during the relevant years of employment. The defined benefit and post-retirement medical plans are not open to new participants and are non-contributory and the funding required is provided by the Bank, based upon the advice of independent actuaries. The defined benefit pension plans are in the Bermuda, Guernsey and United Kingdom jurisdictions and the defined benefit post-retirement medical plan is in Bermuda.

The Bank includes an estimate of the 2017 Bank contribution and estimated benefit payments for the next ten years under the pension and post-retirement plans in its financial statements for the year-ended 31 December 2016. During the nine months ended 30 September 2017, there have been no material revisions to these estimates.

	Three months ended				Nine months ended
	30 September 2017		30 September 2016		30 September 2017		30 September 2016
Defined benefit pension expense (income)
Interest cost	1,348		1,439		4,001		4,421
Expected return on plan assets	(2,061	)	(2,221	)	(6,119	)	(6,819	)
Amortisation of net actuarial loss	560		426		1,676		1,277
Total defined benefit pension expense (income)	(153	)	(356	)	(442	)	(1,121	)
Post-retirement medical benefit expense (income)
Service cost	16		30		48		89
Interest cost	1,175		1,198		3,527		3,594
Amortisation of net actuarial losses	879		682		2,636		2,048
Amortisation of prior service credit	(189	)	(1,585	)	(569	)	(4,757	)
Total post-retirement medical benefit expense (income)	1,881		325		5,642		974

22

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Note 10: Credit related arrangements, repurchase agreements and commitments

Credit-Related Arrangements

Standby letters of credit and letters of guarantee are issued at the request of a Bank customer in order to secure the customer’s payment or performance obligations to a third party. These guarantees represent an irrevocable obligation of the Bank to pay the third party beneficiary upon presentation of the guarantee and satisfaction of the documentary requirements stipulated therein, without investigation as to the validity of the beneficiary’s claim against the customer. Generally, the term of the standby letters of credit does not exceed one year, whilst the term of the letters of guarantee does not exceed four years. The types and amounts of collateral security held by the Bank for these standby letters of credit and letters of guarantee is generally represented by deposits with the Bank or a charge over assets held in mutual funds.

The Bank considers the fees collected in connection with the issuance of standby letters of credit and letters of guarantee to be representative of the fair value of its obligation undertaken in issuing the guarantee. In accordance with applicable accounting standards related to guarantees, the Bank defers fees collected in connection with the issuance of standby letters of credit and letters of guarantee. The fees are then recognised in income proportionately over the life of the credit agreements. The following table presents the outstanding financial guarantees. Collateral is shown at estimated market value less selling cost. Where the collateral is cash, it is shown gross including accrued income.

	30 September 2017			31 December 2016
Outstanding financial guarantees	Gross	Collateral	Net	Gross	Collateral	Net
Standby letters of credit	191,998	183,757	8,241	242,437	242,437	—
Letters of guarantee	3,266	3,180	86	4,772	4,772	—
Total	195,264	186,937	8,327	247,209	247,209	—

Commitments

The Bank enters into contractual commitments to extend credit, normally with fixed expiration dates or termination clauses, at specified rates and for specific purposes. Substantially all of the Bank's commitments to extend credit are contingent upon customers maintaining specific credit standards at the time of loan funding. Management assesses the credit risk associated with certain commitments to extend credit in determining the level of the allowance for possible loan losses.

The Bank has a facility by one of its custodians, whereby the Bank may offer up to US$200 million of standby letters of credit to its customers on a fully secured basis. Under the standard terms of the facility, the custodian has the right to set-off against securities held of 110% of the utilised facility. At 30 September 2017, $84.8 million (31 December 2016: $110.3 million) of standby letters of credit were issued under this facility.

Outstanding unfunded commitments to extend credit	30 September 2017	31 December 2016
Commitments to extend credit	508,411	412,568
Documentary and commercial letters of credit	1,243	1,069
Total unfunded commitments to extend credit	509,654	413,637

Repurchase agreements

The Bank utilizes repurchase agreements and resell agreements (reverse repurchase agreements) to manage liquidity. The risks of these transactions include changes in the fair value in the securities posted or received as collateral and other credit related events. The Bank manages these risks by ensuring that the collaterals involved are appropriate and by monitoring the value of the securities posted or received as collateral on a daily basis.

As at 30 September 2017, the Bank had 18 open positions (31 December 2016: eight) in resell agreements with a remaining maturity of less than 30 days involving pools of mortgages issued by US federal agencies. The amortised cost of these resell agreements is $209.6 million (31 December 2016: $148.8 million) and are included in securities purchased under agreement to resell on the consolidated balance sheets. As at 30 September 2017, there were no positions which were offset on the balance sheet to arrive at the carrying value, and there was no collateral amount which was available to offset against the future settlement amount.

Legal Proceedings

There are actions and legal proceedings pending against the Bank and its subsidiaries which arose in the normal course of its business. Management, after reviewing all actions and proceedings pending against or involving the Bank and its subsidiaries, considers that the resolution of these matters would in the aggregate not be material to the consolidated financial position of the Bank, except as noted in the following paragraphs.

As publicly announced, in November 2013, the US Attorney’s Office for the Southern District of New York applied for and secured the issuance of so-called John Doe Summonses to six US financial institutions with which the Bank had correspondent bank relationships. The Bank has been fully cooperating with the US authorities in their ongoing investigation. Specifically, the Bank has conducted an extensive review and account remediation exercise to determine the US tax compliance status of US person account holders. The review process and results have been shared with the US authorities.

Management believes that as of 30 September 2017, a provision of $5.5 million (31 December 2016: $5.5 million), which has been recorded, is appropriate. As the investigation remains ongoing at this time, the timing and terms of the final resolution, including any fines or penalties, remain uncertain and the financial impact to the Bank could exceed the amount of the provision. In this regard, we note that the US authorities have not approved or commented on the adequacy or reasonableness of the estimate. The provision is included on the consolidated balance sheets under other liabilities and on the consolidated statements of operations under other expenses.

23

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Note 11: Exit cost obligations

During December 2015, the Bank agreed to commence an orderly wind down of the deposit taking and investment management businesses in the United Kingdom segment as reflected in management segment reporting described in Note 12: Segmented Information. In making this determination, the Bank considered the increasing regulatory pressure along with periods of negative profitability and made the determination that an orderly wind down of the deposit taking and investment management businesses in the United Kingdom was prudent for Butterfield as a group. The orderly wind down was largely completed by the end of 2016 with the change in business operations to mortgage lending services and the change in name from Butterfield Bank (UK) Limited to Butterfield Mortgages Limited. The amounts expensed shown in the following table are all included in the consolidated statements of operations as restructuring costs under non-interest expenses.

Related to this orderly wind down, it was determined that the core banking system utilized in the operations of the United Kingdom segment was impaired (included in premises, equipment and computer software on the consolidated balance sheets). This determination was based upon the realisable value of this software upon completion of the orderly wind down. A total of $5.1 million was expensed in the fourth quarter of the year ended 31 December 2015 and was included in impairment of fixed assets on the consolidated statements of operations of the relevant period.

	Expense recognised by period				Amounts paid by period		Exit cost liability
	Nine months ended 30 September 2017	Years 2015 and 2016	Costs to be recognised in the future	Total exit costs expected to be incurred	Nine months ended 30 September 2017	Years 2015 and 2016	As at 30 September 2017	As at 31 December 2016
Staff redundancy expenses	236	3,444	—	3,680	351	3,329	—	115
Professional services	413	3,833	33	4,279	483	3,763	—	70
Lease termination expenses	622	—	141	763	622	—	—	—
Other expenses	191	1,172	858	2,221	191	1,172	—	—
Total	1,462	8,449	1,032	10,943	1,647	8,264	—	185

Note 12: Segmented information

The Bank is managed by its CEO on a geographic basis. The Bank's six geographic segments are Bermuda, Cayman, Guernsey, Switzerland, The Bahamas and the United Kingdom. The geographic segments are determined based on the country's balance sheet size and by regulatory reporting requirements in the respective jurisdiction. Each region has a managing director who reports directly to the CEO. The Group CEO and the region managing director have final authority over resource allocation decisions and performance assessment.

The geographic segments reflect this management structure and the manner in which financial information is currently evaluated by the CEO. Segment results are determined based upon the Bank's management reporting system, which assigns balance sheet and income statement items to each of the geographic segments. The process is designed around the Bank's organizational and management structure and, accordingly, the results derived are not necessarily comparable with similar information published by other financial institutions. A description of each reportable segment and table of financial results is presented below.

Accounting policies of the reportable segments are the same as those described in Note 2 of the Bank's audited financial statements for the year ended 31 December 2016. Transactions between segments are accounted for on an accrual basis and are all eliminated upon consolidation. The Bank generally does not allocate assets, revenues and expenses among its business segments, with the exception of certain corporate overhead expenses and loan participation revenue and expense. Loan participation revenue and expenses are allocated pro-rata based upon the percentage of the total loan funded by each jurisdiction participating in the loan.

Bermuda provides a full range of retail, commercial and private banking services. Retail services are offered to individuals and small to medium-sized businesses through five branch locations and through internet banking, mobile banking, automated teller machines (“ATMs”) and debit cards. Retail services include deposit services, consumer and mortgage lending, credit cards and personal insurance products. Commercial banking includes commercial lending and mortgages, cash management, payroll services, remote banking and letters of credit. Treasury services include money market and foreign exchange activities. Bermuda’s wealth management offering consists of Butterfield Asset Management Limited, which provides investment management, advisory and brokerage services and Butterfield Trust (Bermuda) Limited, which provides trust, estate, company management and custody services. Bermuda is also the location of Bank's head offices and accordingly, retains the unallocated corporate overhead expenses.

The Cayman segment provides a comprehensive range of retail, commercial and private banking services. Retail services are offered to individuals and small to medium-sized businesses through three branch locations and through internet banking, mobile banking, ATMs and debit cards. Retail services include deposit services, consumer and mortgage lending, credit cards and property/auto insurance. Commercial banking includes commercial lending and mortgages, cash management, payroll services, remote banking and letters of credit. Treasury services include money market and foreign exchange activities. Cayman’s wealth management offering comprises investment management, advisory and brokerage services and Butterfield Trust (Cayman) Limited, which provides trust, estate and company management.

The Guernsey segment provides a broad range of services to private clients and financial institutions including private banking and treasury services, internet banking, administered bank services, wealth management and fiduciary services.

The Switzerland segment provides fiduciary services. The Bahamas segment provides fiduciary and ancillary services.

The United Kingdom segment previously provided a broad range of services including private banking and treasury services, internet banking and wealth management and fiduciary services to high net worth individuals and privately owned businesses. As described in Note 11, during the year-ended 31 December 2015, the Bank commenced an orderly wind down of the deposit taking and investment management businesses in the United Kingdom segment. The United Kingdom segment now provides mortgage services for high value residential properties.

24

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Total Assets by Segment	30 September 2017		31 December 2016
Bermuda	5,876,172		6,765,125
Cayman	3,221,976		3,393,256
Guernsey	1,520,693		1,132,663
Switzerland	2,991		2,173
The Bahamas	47,759		81,604
United Kingdom	37,304		151,866
Total assets before inter-segment eliminations	10,706,895		11,526,687
Less: inter-segment eliminations	(128,513	)	(423,142	)
Total	10,578,382		11,103,545

	Net interest income			Provision for credit losses		Non-interest income		Revenue before gains and losses		Gains and losses		Total net revenue		Total expenses		Net income
Three months ended 30 September 2017	Customer	Inter- segment
Bermuda	45,555	287		1,053		20,051		66,946		2,597		69,543		46,954		22,589
Cayman	21,805	11		(418	)	10,923		32,321		—		32,321		14,938		17,383
Guernsey	6,638	(305	)	26		5,628		11,987		—		11,987		9,558		2,429
Switzerland	—	—		—		938		938		—		938		898		40
The Bahamas	34	7		—		918		959		—		959		1,022		(63	)
United Kingdom	226	—		—		838		1,064		(842	)	222		1,509		(1,287	)
Total before eliminations	74,258	—		661		39,296		114,215		1,755		115,970		74,879		41,091
Inter-segment eliminations	—	—		—		(1,063	)	(1,063	)	—		(1,063	)	(1,063	)	—
Total	74,258	—		661		38,233		113,152		1,755		114,907		73,816		41,091

	Net interest income			Provision for  credit losses		Non-interest  income		Revenue  before gains  and losses		Gains and  losses		Total net revenue		Total expenses		Net income
Three months ended 30 September 2016	Customer	Inter- segment
Bermuda	40,895	465		(19	)	19,285		60,626		867		61,493		48,800		12,693
Cayman	19,660	65		193		9,084		29,002		(154	)	28,848		14,805		14,043
Guernsey	3,607	(95	)	(655	)	5,912		8,769		(59	)	8,710		8,552		158
Switzerland	1	—		—		875		876		—		876		824		52
The Bahamas	13	5		—		1,112		1,130		—		1,130		1,245		(115	)
United Kingdom	822	(440	)	174		693		1,249		(30	)	1,219		4,002		(2,783	)
Total before eliminations	64,998	—		(307	)	36,961		101,652		624		102,276		78,228		24,048
Inter-segment eliminations	—	—		—		(695	)	(695	)	—		(695	)	(695	)	—
Total	64,998	—		(307	)	36,266		100,957		624		101,581		77,533		24,048

	Net interest income			Provision for credit losses		Non-interest income		Revenue before gains and losses		Gains and losses		Total net revenue		Total expenses		Net income
Nine months ended 30 September 2017	Customer	Inter- segment
Bermuda	132,078	835		718		59,474		193,105		4,875		197,980		138,787		59,193
Cayman	64,257	—		(273	)	33,304		97,288		19		97,307		45,145		52,162
Guernsey	16,585	(834	)	42		17,094		32,887		(67	)	32,820		28,192		4,628
Switzerland	—	—		—		2,805		2,805		—		2,805		2,535		270
The Bahamas	69	39		—		2,918		3,026		—		3,026		3,431		(405	)
United Kingdom	658	(40	)	—		2,590		3,208		(863	)	2,345		5,195		(2,850	)
Total before eliminations	213,647	—		487		118,185		332,319		3,964		336,283		223,285		112,998
Inter-segment eliminations	—	—		—		(2,711	)	(2,711	)	—		(2,711	)	(2,711	)	—
Total	213,647	—		487		115,474		329,608		3,964		333,572		220,574		112,998

25

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

	Net interest income			Provision for credit losses		Non-interest income		Revenue before gains and losses		Gains and losses		Total net revenue		Total expenses		Net income
Nine months ended 30 September 2016	Customer	Inter- segment
Bermuda	119,286	1,306		(3,786	)	51,709		168,515		973		169,488		121,488		48,000
Cayman	58,008	287		(1,210	)	30,344		87,429		(968	)	86,461		44,950		41,511
Guernsey	10,928	(229	)	(1,224	)	18,806		28,281		(983	)	27,298		26,498		800
Switzerland	1	—		—		2,814		2,815		—		2,815		2,535		280
The Bahamas	33	21		—		3,531		3,585		—		3,585		3,833		(248	)
United Kingdom	3,414	(1,385	)	949		3,463		6,441		1,194		7,635		17,396		(9,761	)
Total before eliminations	191,670	—		(5,271	)	110,667		297,066		216		297,282		216,700		80,582
Inter-segment eliminations	—	—		—		(1,983	)	(1,983	)	—		(1,983	)	(1,983	)	—
Total	191,670	—		(5,271	)	108,684		295,083		216		295,299		214,717		80,582

Note 13: Derivative instruments and risk management

The Bank uses derivatives for risk management purposes and to meet the needs of its customers. The Bank’s derivative contracts principally involve over-the-counter (“OTC”) transactions that are privately negotiated between the Bank and the counterparty to the contract and include interest rate contracts and foreign exchange contracts.

The Bank may pursue opportunities to reduce its exposure to credit losses on derivatives by entering into International Swaps and Derivatives Association master agreements (“ISDAs”). Depending on the nature of the derivative transaction, bilateral collateral arrangements may be used as well. When the Bank is engaged in more than one outstanding derivative transaction with the same counterparty, and also has a legally enforceable master netting agreement with that counterparty, the net marked to market exposure represents the netting of the positive and negative exposures with that counterparty. When there is a net negative exposure, the Bank regards its credit exposure to the counterparty as being zero. The net marked to market position with a particular counterparty represents a reasonable measure of credit risk when there is a legally enforceable master netting agreement between the Bank and that counterparty.

Certain of these agreements contain credit risk-related contingent features in which the counterparty has the option to accelerate cash settlement of the Bank's net derivative liabilities with the counterparty in the event the Bank's credit rating falls below specified levels or the liabilities reach certain levels.

All derivative financial instruments, whether designated as hedges or not, are recorded on the consolidated balance sheets at fair value within other assets or other liabilities. These amounts include the effect of netting. The accounting for changes in the fair value of a derivative in the consolidated statements of operations depends on whether the contract has been designated as a hedge and qualifies for hedge accounting.

Notional Amounts

The notional amounts are not recorded as assets or liabilities on the consolidated balance sheets as they represent the face amount of the contract to which a rate or price is applied to determine the amount of cash flows to be exchanged. Notional amounts represent the volume of outstanding transactions and do not represent the potential gain or loss associated with market risk or credit risk of such instruments. Credit risk is limited to the positive fair value of the derivative instrument, which is significantly less than the notional amount.

Fair Value

Derivative instruments, in the absence of any compensating up-front cash payments, generally have no market value at inception. They obtain value, positive or negative, as relevant interest rates, exchange rates, equity or commodity prices or indices change. The potential for derivatives to increase or decrease in value as a result of the foregoing factors is generally referred to as market risk. Market risk is managed within clearly defined parameters as prescribed by senior management of the Bank. The fair value is defined as the profit or loss associated with replacing the derivative contracts at prevailing market prices.

Risk Management Derivatives

The Bank enters into interest derivative contracts as part of its overall interest rate risk management strategy to minimise significant unplanned fluctuations in earnings that are caused by interest rate volatility. The Bank’s goal is to manage interest rate sensitivity by modifying the repricing or maturity characteristics of certain consolidated balance sheet assets and liabilities so that movements in interest rates do not adversely affect the net interest margin. Derivative instruments that are used as part of the Bank’s risk management strategy include interest rate swap contracts that have indices related to the pricing of specific consolidated balance sheet assets and liabilities. Interest rate swaps generally involve the exchange of fixed and variable-rate interest payments between two parties, based on a common notional principal amount and maturity date. The Bank uses foreign currency derivative instruments to hedge its exposure to foreign currency risk. Certain hedging relationships are formally designated and qualify for hedge accounting as fair value or net investment hedges. Risk management derivatives comprise fair value hedges, net investments hedges and derivatives not formally designated as hedges as described below.

Fair value hedges consist of designated interest rate swaps and are used to minimise the Bank's exposure to changes in the fair value of assets and liabilities due to movements in interest rates. The Bank previously entered into interest rate swaps to convert its fixed-rate long-term loans to floating-rate loans, and convert fixed-rate deposits to floating-rate deposits. During the year ended 31 December 2011, the Bank cancelled its interest rate swaps designated as fair value hedges of loans receivable and therefore discontinued hedge accounting for these financial instruments. The fair value attributable to the hedged loans are accounted for prospectively and are being amortised to net income over the remaining life of each individual loan, which could extend to year 2029, using the effective interest method.

26

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Net investment hedges includes designated currency swaps and qualifying non-derivative instruments and are used to minimise the Bank’s exposure to variability in the foreign currency translation of net investments in foreign operations. The effective portion of changes in the fair value of the hedging instrument is recognised in AOCL consistent with the related translation gains and losses of the hedged net investment. For net investment hedges, all critical terms of the hedged item and the hedging instrument are matched at inception and on an ongoing basis to minimise the risk of hedge ineffectiveness.

For derivatives designated as net investment hedges, the Bank follows the method based on changes in spot exchange rates. Accordingly:

- The change in the fair value of the derivative instrument that is reported in AOCL (i.e. the effective portion) is determined by the changes in spot exchange rates.

- The change in the fair value of the derivative instrument attributable to changes in the difference between the forward rate and spot rate are excluded from the measure

of the hedge ineffectiveness and that difference is reported directly in the consolidated statements of operations under foreign exchange revenue.

Amounts recorded in AOCL are reclassified to earnings only upon the sale or substantial liquidation of an investment in a foreign subsidiary.

For foreign-currency-denominated debt instruments that are designated as hedges of net investments in foreign operations, the translation gain or loss that is recorded in AOCL is based on the spot exchange rate between the reporting currency of the Bank and the functional currency of the respective subsidiary. See Note 19 for details on the amount recognised into AOCL during the current period from translation gain or loss.

Derivatives not formally designated as hedges are entered into to manage the interest rate risk of fixed rate deposits and foreign exchange risk of the Bank's exposure. Changes in the fair value of derivative instruments not formally designated as hedges are recognised in foreign exchange income.

Client service derivatives

The Bank enters into foreign exchange contracts and interest rate caps primarily to meet the foreign exchange needs of its customers. Foreign exchange contracts are agreements to exchange specific amounts of currencies at a future date at a specified rate of exchange. Changes in the fair value of client services derivative instruments are recognised in foreign exchange income.

The following table shows the aggregate notional amounts of derivative contracts outstanding listed by type and respective gross positive or negative fair values and classified by those used for risk management (sub-classified as hedging and those that do not qualify for hedge accounting), client services and credit derivatives. Fair value of derivatives is recorded in the consolidated balance sheets in other assets and other liabilities. Gross positive fair values are recorded in other assets and gross negative fair values are recorded in other liabilities, subject to netting when master netting agreements are in place.

30 September 2017	Derivative instrument	Number of contracts	Notional  amounts	Gross  positive fair value	Gross  negative fair value		Net  fair value
Risk management derivatives
Derivatives not formally designated as hedging instruments	Currency swaps	7	381,009	1,536	(5,481	)	(3,945	)
Client services derivatives	Spot and forward foreign exchange	158	3,088,772	12,687	(12,441	)	246
Total derivative instruments			3,469,781	14,223	(17,922	)	(3,699	)
31 December 2016	Derivative instrument	Number of contracts	Notional  amounts	Gross  positive fair value	Gross  negative fair value		Net  fair value
Risk management derivatives
Net investment hedges	Currency swaps	1	77,670	15,744	—		15,744
Derivatives not formally designated as hedging instruments	Currency swaps	11	676,856	5,901	(3,013	)	2,888
Subtotal risk management derivatives			754,526	21,645	(3,013	)	18,632
Client services derivatives	Spot and forward foreign exchange	106	2,039,141	15,410	(15,267	)	143
Total derivative instruments			2,793,667	37,055	(18,280	)	18,775

In addition to the above, as at 30 September 2017 foreign denominated deposits of £84.5 million (31 December 2016: £34.5 million), were designated as a hedge of foreign exchange risk associated with the net investment in foreign operations.

We manage derivative exposure by monitoring the credit risk associated with each counterparty using counterparty specific credit risk limits, using master netting arrangements where appropriate and obtaining collateral. The Bank elected to offset in the consolidated balance sheets certain gross derivative assets and liabilities subject to netting agreements.

27

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

The Bank also elected not to offset certain derivative assets or liabilities and all collaterals received or paid that the Bank or the counterparties could legally offset in the event of default. In the tables below, these positions are deducted from the net fair value presented in the consolidated balance sheets in order to present the net exposures. The collateral values presented in the following table are limited to the related net derivative asset or liability balance and, accordingly, do not include excess collateral received or paid.

	Gross fair  value  recognised	Less: offset  applied  under master  netting  agreements		Net fair value presented in the  consolidated  balance sheets		Less: positions not offset in the consolidated balance sheets
30 September 2017						Gross fair value of derivatives		Cash collateral  received / paid		Net exposures
Derivative assets
Spot and forward foreign exchange and currency swaps	14,223	(3,658	)	10,565		—		(9,393	)	1,172
Derivative liabilities
Spot and forward foreign exchange and currency swaps	17,922	(3,658	)	14,264		—		(4,384	)	9,880
Net negative fair value				(3,699	)
	Gross fair  value  recognised	Less: offset  applied  under master  netting  agreements		Net fair value presented in the  consolidated  balance sheets		Less: positions not offset in the consolidated balance sheets
31 December 2016						Gross fair value of derivatives		Cash collateral  received / paid		Net exposures
Derivative assets
Spot and forward foreign exchange and currency swaps	37,055	(6,959	)	30,096		(6,811	)	(8,292	)	14,993
Derivative liabilities
Spot and forward foreign exchange and currency swaps	18,280	(6,959	)	11,321		(6,811	)	—		4,510
Net positive fair value				18,775

The following tables shows the location and amount of gains (losses) recorded in either the consolidated statements of operations or consolidated statements of comprehensive income on derivative instruments outstanding. During 2016, Management revised the following disclosures to segregate the gains and losses attributable to the specific types of derivatives.

		Three months ended				Nine months ended
Derivative instrument	Consolidated statements of operations line item	30 September 2017		30 September 2016		30 September 2017		30 September 2016
Spot and forward foreign exchange	Foreign exchange revenue	(423	)	(22	)	103		30
Currency swaps, not designated as hedge	Foreign exchange revenue	10,794		(2,753	)	(6,833	)	6,355
Currency swaps - Net investment hedge	Foreign exchange revenue	(12,516	)	(57	)	(11,334	)	512
Total net gains (losses) recognised in net income		(2,145	)	(2,832	)	(18,064	)	6,897
Derivative instrument	Consolidated statements of comprehensive income line item	30 September 2017		30 September 2016		30 September 2017		30 September 2016
Currency swaps - Net investment hedge	Net change in unrealised gains and (losses) on translation of net investment in foreign operations	—		1,310		(4,410	)	7,712
Total net gains (losses) recognised in comprehensive income		—		1,310		(4,410	)	7,712

28

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Note 14: Fair value measurements

The following table presents the financial assets and liabilities that are measured at fair value on a recurring basis. Management classifies these items based on the type of inputs used in their respective fair value determination as described in Note 2 of the Bank's audited financial statements for the year ended 31 December 2016.

Management reviews the price of each security monthly, comparing market values to expectations and to the prior month’s price. Management's expectations are based upon knowledge of prevailing market conditions and developments relating to specific issuers and/or asset classes held in the investment portfolio. Where there are unusual or significant price movements, or where a certain asset class has performed out-of-line with expectations, the matter is reviewed by the Group Asset and Liability Committee.

Financial instruments in Level 1 include actively traded redeemable mutual funds.

Financial instruments in Level 2 include corporate bonds, mortgage-backed securities and other asset-backed securities, forward foreign exchange contracts and mutual funds not actively traded.

Financial instruments in Level 3 include asset-backed securities for which the market is relatively illiquid and for which information about actual trading prices is not readily available.

There were no transfers between Level 1 and Level 2 or Level 2 and Level 3 during the nine months ended 30 September 2017 and the year ended 31 December 2016.

	30 September 2017				31 December 2016
	Fair value			Total carrying amount / fair value	Fair value			Total carrying amount / fair value
	Level 1	Level 2	Level 3		Level 1	Level 2	Level 3
Items that are recognised at fair value on a recurring basis:
Financial assets
Trading investments
Mutual funds	6,492	208	—	6,700	6,091	222	—	6,313
Total trading	6,492	208	—	6,700	6,091	222	—	6,313
Available-for-sale investments
US government and federal agencies	—	2,664,849	—	2,664,849	—	2,430,402	—	2,430,402
Non-US governments debt securities	—	26,982	—	26,982	—	27,020	—	27,020
Corporate debt securities	—	278,893	—	278,893	—	514,475	—	514,475
Asset-backed securities - Student loans	—	—	12,493	12,493	—	—	12,493	12,493
Commercial mortgage-backed securities	—	150,758	—	150,758	—	150,546	—	150,546
Residential mortgage-backed securities	—	193,960	—	193,960	—	197,802	—	197,802
Total available-for-sale	—	3,315,442	12,493	3,327,935	—	3,320,245	12,493	3,332,738
Other assets - Derivatives	—	10,565	—	10,565	—	30,096	—	30,096
Financial liabilities
Other liabilities - Derivatives	—	14,264	—	14,264	—	11,321	—	11,321

Level 3 Reconciliation

The Level 3 Asset-backed securities - Student loans is a federal family education loan programme guaranteed student loan security and is valued using a non-binding broker quote. The fair value provided by the broker is based on the last trading price of similar securities but as the market for the security is illiquid, a Level 2 classification is not supported.

Significant increases (decreases) in any of the preceding inputs in isolation could result in a significantly different fair value measurement. Generally a change in assumption used for the probability of defaults is accompanied by a directionally similar change in the assumption used for the loss severity.

	Nine months ended 30 September 2017	Year ended 31 December 2016
	Available-  for-sale investments	Available-  for-sale investments
Carrying amount at beginning of period	12,493	12,161
Realised and unrealised gains (losses) recognised in other comprehensive income	—	332
Carrying amount at end of period	12,493	12,493

29

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Items Other Than Those Recognised at Fair Value on a Recurring Basis:
		30 September 2017				31 December 2016
	Level	Carrying amount	Fair  value	Appreciation / (depreciation)		Carrying amount	Fair  value	Appreciation / (depreciation)
Financial assets
Cash due from banks	Level 1	1,545,522	1,545,522	—		2,101,651	2,101,651	—
Securities purchased under agreement to resell	Level 2	209,595	209,595	—		148,813	148,813	—
Short-term investments	Level 1	208,177	208,177	—		519,755	519,755	—
Investments held-to-maturity	Level 2	1,278,152	1,278,210	58		1,061,103	1,046,828	(14,275	)
Loans, net of allowance for credit losses	Level 2	3,664,101	3,658,872	(5,229	)	3,570,478	3,566,812	(3,666	)
Other real estate owned¹	Level 2	12,272	12,272	—		14,199	14,199	—
Financial liabilities
Customer deposits
Demand deposits	Level 2	7,884,403	7,884,403	—		8,193,213	8,193,213	—
Term deposits	Level 2	1,510,241	1,511,100	(859	)	1,816,640	1,817,564	(924	)
Deposits from banks	Level 2	12,817	12,817	—		23,796	23,796	—
Long-term debt	Level 2	117,000	118,496	(1,496	)	117,000	117,683	(683	)

¹ The current carrying value of OREO is adjusted to fair value only when there is devaluation below carrying value.

30

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Note 15: Interest rate risk

The following tables set out the assets, liabilities and shareholders' equity and off-balance sheet instruments on the date of the earlier of contractual maturity, expected maturity or repricing date. Use of these tables to derive information about the Bank’s interest rate risk position is limited by the fact that customers may choose to terminate their financial instruments at a date earlier than the contractual maturity or repricing date. Examples of this include fixed-rate mortgages, which are shown at contractual maturity but which may pre-pay earlier, and certain term deposits, which are shown at contractual maturity but which may be withdrawn before their contractual maturity subject to prepayment penalties. Investments are shown based on remaining contractual maturities. The remaining contractual principal maturities for mortgage-backed securities (primarily US government agencies) do not consider prepayments. Remaining expected maturities will differ from contractual maturities because borrowers may have the right to prepay obligations before the underlying mortgages mature.

30 September 2017	Earlier of contractual maturity or repricing date
(in $ millions)	Within 3  months		3 to 6  months		6 to 12  months		1 to 5  years	After  5 years	Non-interest  bearing funds		Total
Assets
Cash due from banks	1,455		—		—		—	—	91		1,546
Securities purchased under agreement to resell	210		—		—		—	—	—		210
Short-term investments	203		1		4		—	—	—		208
Investments	1,498		65		63		337	2,643	7		4,613
Loans	3,330		171		18		101	42	2		3,664
Other assets	—		—		—		—	—	337		337
Total assets	6,696		237		85		438	2,685	437		10,578
Liabilities and shareholders' equity
Shareholders’ equity	—		—		—		—	—	802		802
Demand deposits	5,522		—		—		—	—	2,371		7,893
Term deposits	1,125		178		145		66	—	—		1,514
Other liabilities	—		—		—		—	—	252		252
Long-term debt	92		—		25		—	—	—		117
Total liabilities and shareholders' equity	6,739		178		170		66	—	3,425		10,578
Interest rate sensitivity gap	(43	)	59		(85	)	372	2,685	(2,988	)	—
Cumulative interest rate sensitivity gap	(43	)	16		(69	)	303	2,988	—		—
31 December 2016	Earlier of contractual maturity or repricing date
(in $ millions)	Within 3  months		3 to 6  months		6 to 12  months		1 to 5  years	After  5 years	Non-interest  bearing funds		Total
Assets
Cash due from banks	1,991		—		—		—	—	111		2,102
Securities purchased under agreement to resell	149		—		—		—	—	—		149
Short-term investments	135		385		—		—	—	—		520
Investments	1,343		15		81		665	2,290	6		4,400
Loans	3,339		53		57		81	38	2		3,570
Other assets	—		—		—		—	—	363		363
Total assets	6,957		453		138		746	2,328	482		11,104
Liabilities and shareholders' equity
Shareholders’ equity	—		—		—		—	—	711		711
Demand deposits	5,828		—		—		—	—	2,385		8,213
Term deposits	1,492		166		92		71	—	—		1,821
Other liabilities	—		—		—		—	—	242		242
Long-term debt	92		—		—		25	—	—		117
Total liabilities and shareholders' equity	7,412		166		92		96	—	3,338		11,104
Interest rate sensitivity gap	(455	)	287		46		650	2,328	(2,856	)	—
Cumulative interest rate sensitivity gap	(455	)	(168	)	(122	)	528	2,856	—		—

31

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Note16: Earnings per share

Earnings per share have been calculated using the weighted average number of common shares outstanding during the period after deduction of the shares held as treasury stock. The dilutive effect of share-based compensation plans was calculated using the treasury stock method, whereby the proceeds received from the exercise of share-based awards are assumed to be used to repurchase outstanding shares, using the average market price of the Bank’s shares for the year. Numbers of shares are expressed in thousands.

During the nine months ended 30 September 2017, options to purchase an average of 1.1 million (30 September 2016: 2.7 million) common shares were outstanding. During the nine months ended 30 September 2017, the average number of outstanding awards of unvested common shares was 0.9 million (30 September 2016: 0.8 million). Only awards for which the sum of 1) the expense that will be recognised in the future (i.e. the unrecognised expense) and 2) its exercise price, if any, was lower than the average market price of the Bank‘s common shares were considered dilutive and, therefore, included in the computation of diluted earnings per share. An award's unrecognised expense is also considered to be the proceeds the employees would need to pay to purchase accelerated vesting of the awards. For purposes of calculating dilution, such proceeds are assumed to be used by the Bank to buy back common shares at the average market price. The weighted-average number of outstanding awards, net of the assumed weighted-average number of common shares bought back, is included in the number of diluted participating shares.

A warrant, outstanding until the Bank repurchased it in December 2016, to purchase 0.43 million common shares issued to the Government of Bermuda in exchange for the Government's guarantee of the preference shares, with an exercise price per share of $34.72 was not included in the computation of earnings per share for any period during the year ended 31 December 2016 because the exercise price was greater than the average market price of the Bank‘s common shares.

	Three months ended			Nine months ended
	30 September 2017	30 September 2016		30 September 2017	30 September 2016
Net income	41,091	24,048		112,998	80,582
Less: Preference dividends declared and guarantee fee	—	(4,119	)	—	(12,303	)
Net income attributable for common shareholders	41,091	19,929		112,998	68,279
Basic Earnings Per Share
Weighted average number of common shares issued	54,614	48,782		54,180	47,889
Weighted average number of common shares held as treasury stock	—	(518	)	—	(647	)
Weighted average number of common shares (in thousands)	54,614	48,264		54,180	47,242
Basic Earnings Per Share	0.75	0.41		2.09	1.45
Diluted Earnings Per Share
Weighted average number of common shares	54,614	48,264		54,180	47,242
Net dilution impact related to options to purchase common shares	339	499		628	455
Net dilution impact related to awards of unvested common shares	512	275		596	346
Weighted average number of diluted common shares (in thousands)	55,465	49,038		55,404	48,043
Diluted Earnings Per Share	0.74	0.41		2.04	1.42

Note 17: Share-based payments

The common shares transferred to employees under all share-based payments are either taken from the Bank's common treasury shares or from newly issued shares. All share-based payments are settled by the ultimate parent company, which pursuant to Bermuda law is not taxed on income. There are no income tax benefits in relation to the issue of such shares as a form of compensation.

In conjunction with the 2010 capital raise, the Board of Directors approved the 2010 Omnibus Plan (the "2010 Plan"). Under the 2010 Plan, 5% of the Bank’s fully diluted common shares, equal to approximately 2.95 million shares, were initially available for grant to certain officers in the form of stock options or unvested shares awards. Both types of awards are detailed below. In 2012 and 2016, the Board of Directors approved an increase to the equivalent number of shares allowed to be granted under the 2010 Plan to respectively 5.0 million and 7.5 million shares.

Stock Option Awards

1997 Stock Option Plan

Prior to the capital raise on 2 March 2010, the Bank granted stock options to employees and Directors of the Bank that entitle the holder to purchase one common share at a subscription price equal to the market price on the effective date of the grant. Generally, the options granted vest 25 percent at the end of each year for four years, however

as a result of the 2010 capital raise, the options granted under the Bank's 1997 Stock Option Plan to employees became fully vested and options awarded to certain executives were surrendered.

2010 Plan

Under the 2010 Plan, options are awarded to Bank employees and executive management, based on predetermined vesting conditions that entitle the holder to purchase one common share at a subscription price usually equal to the price of the most recently traded common share when granted and have a term of 10 years. The subscription price is reduced for all special dividends declared by the Bank. Stock option awards granted under the 2010 Plan vest based on two specific types of vesting conditions i.e., time and performance conditions, as detailed below:

Time vesting condition

50% of each option award is granted in the form of time vested options and vests 25% on each of the second, third, fourth and fifth anniversaries of the effective grant date.

32

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

In addition to the time vesting conditions noted above, the options will generally vest immediately:

• by reason of the employee’s death or disability,

• upon termination, by the Bank, of the holder’s employment, unless if in relation with the holder’s misconduct, or

• in limited circumstances and specifically approved by the Board, as stipulated in the holder’s employment contract.

In the event of the employee’s resignation, any unvested portion of the awards shall generally be forfeited and any vested portion of the options shall generally remain exercisable during the 90-day period following the termination date or, if earlier, until the expiration date, and any vested portion of the options not exercised as of the expiration of such period shall be forfeited without any consideration therefore.

Performance vesting condition

50% of each option award is granted in the form of performance options and vests (partially or fully) on a “valuation event” date (date any of the 2 March 2010 new investors transfers at least 5% of the total number of common shares or the date that there is a change in control and any of the new investors realises a predetermined multiple of invested capital (“MOIC”)). On 21 September 2016, it was determined that a valuation event occurred during which a new investor realised a MOIC of more than 200% of the original invested capital of $12.09 per share and accordingly, all outstanding unvested performance options vested.

Changes in Outstanding Stock Options
	Number of shares transferable upon exercise (thousands)						Weighted average  exercise price ($)		Weighted average  remaining life (years)		Aggregate  intrinsic value  ($ thousands)
Nine months ended 30 September 2017	1997 Stock  Option Plan		2010 Stock Option Plan		Total		1997 Stock Option Plan	2010 Stock Option Plan	1997 Stock Option Plan	2010 Stock Option Plan
Outstanding at beginning of period	116		1,950		2,066		132.13	11.57
Exercised	—		(1,456	)	(1,456	)	—	11.51			31,884
Forfeitures and cancellations	(57	)	—		(57	)	151.71	—
Outstanding at end of period	59		494		553		113.46	11.72	0.88	2.73	12,305
Vested and exercisable at end of period	59		494		553		113.46	11.72	0.88	2.73
	Number of shares transferable upon exercise (thousands)						Weighted average  exercise price ($)		Weighted average  remaining life (years)		Aggregate  intrinsic value  ($ thousands)
Nine months ended 30 September 2016	1997 Stock  Option Plan		2010 Stock  Option Plan		Total		1997 Stock  Option Plan	2010 Stock  Option Plan	1997 Stock  Option Plan	2010 Stock  Option Plan
Outstanding at beginning of period	218		2,608		2,826		135.19	11.60
Exercised	—		(118	)	(118	)	—	11.63			1,117
Forfeitures and cancellations	(102	)	(4	)	(106	)	138.79	11.50
Resignations, retirements, redundancies	—		(27	)	(27	)	—	11.50
Outstanding at end of period	116		2,459		2,575		132.04	11.60	1.43	3.93	32,347
Vested and exercisable at end of period	116		2,459		2,575		132.04	11.60	1.43	3.93

Share Based Plans

Recipients of unvested share awards are entitled to the related common shares at no cost, at the time the award vests. Recipients of unvested shares may be entitled to receive additional unvested shares having a value equal to the cash dividends that would have been paid had the unvested shares been issued and vested. Such additional unvested shares granted as dividend equivalents are subject to the same vesting schedule and conditions as the underlying unvested shares.

Unvested shares subject only to the time vesting condition generally vest upon retirement, death, disability or upon termination, by the Bank, of the holder’s employment unless if in connection with the holder’s misconduct. Unvested shares subject to both time vesting and performance vesting conditions remain outstanding and unvested upon retirement and will vest only if the performance conditions are met. Unvested shares can also vest in limited circumstances and if specifically approved by the Board, as stipulated in the holder’s employment contract. In all other circumstances, unvested shares are generally forfeited when employment ends.

Employee Deferred Incentive Plan (“EDIP”)

Under the Bank’s EDIP Plan, shares were awarded to Bank employees and executive management based on the time vesting condition, which states that the shares will vest equally over a three-year period from the effective grant date.

Executive Long-Term Incentive Share Plan (“ELTIP”) - Years 2012 and 2011

Under the Bank’s 2012 and 2011 ELTIP, shares were awarded to Bank employees and executive management, based on predetermined vesting conditions. Two types of vesting conditions upon which the shares were awarded comprise the ELTIP: 1) 50% of each share award was granted in the form of time vested shares, generally vesting equally over a three-year period from the effective grant date; and 2) 50% of each share award was granted in the form of performance shares, generally vesting upon the achievement of certain performance targets in the three-year period from the effective grant date.

Executive Long-Term Incentive Share Plan (“ELTIP”) - Years 2017, 2016, 2015, 2014 and 2013

The 2017 ELTIP was approved on 27 February 2017. Under the Bank’s 2017, 2016, 2015, 2014 and 2013 ELTIP, performance shares were awarded to executive management. These shares will generally vest upon the achievement of certain performance targets in the three-year period from the effective grant date.

33

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Changes in Outstanding ELTIP and EDIP awards (in thousands of shares transferable upon vesting)
	Nine months ended
	30 September 2017				30 September 2016
	EDIP		ELTIP		EDIP		ELTIP
Outstanding at beginning of period	215		640		226		606
Granted	130		230		114		357
Vested (fair value in 2017: $10.2 million, 2016: $6.9 million)	(102	)	(196	)	(118	)	(302	)
Resignations, retirements, redundancies	(1	)	(1	)	(2	)	(8	)
Outstanding at end of period	242		673		220		653

Share-based Compensation Cost Recognised in Net Income
	Nine months ended
	30 September 2017			30 September 2016
	Stock option  plans	EDIP and  ELTIP	Total	Stock option plans	EDIP and ELTIP	Total
Cost recognised in net income	—	5,225	5,225	8,872	4,592	13,464

Unrecognised Share-based Compensation Cost	30 September 2017	31 December 2016
EDIP	4,076	2,040
ELTIP
Time vesting shares	3,720	2,988
Performance vesting shares	5,929	3,802
Total unrecognised expense	13,725	8,830

Note 18: Share buy-back plans

The Bank initially introduced two share buy-back programmes on 1 May 2012 as a means to improve shareholder liquidity and facilitate growth in share value. Each programme was approved by the Board of Directors for a period of 12 months, in accordance with the regulations of the BSX. The BSX must be advised monthly of shares purchased pursuant to each programme.

From time to time the Bank's associates, insiders and insiders' associates as defined by the BSX regulations may sell shares which may result in such shares being repurchased pursuant to each programme, provided no more than any such person's pro-rata share of the listed securities is repurchased. Pursuant to the BSX regulations, all repurchases made by any issuer pursuant to a securities repurchase programme must be made: (1) in the open market and not by private agreement; and (2) for a price not higher than the last independent trade for a round lot of the relevant class of securities.

Common Share Buy-Back Programme

On 19 February 2016, the Board approved, with effect from 1 April 2016, the 2016 common share buy-back programme, authorising the purchase for treasury of up to 0.8 million common shares.

	Nine months ended	Year ended 31 December
Common share buy-backs	30 September 2017	2016	2015	2014	2013	2012	Total
Acquired number of shares (to the nearest 1)	—	97,053	250,371	856,734	403,848	726,005	2,334,011
Average cost per common share	—	16.36	19.42	19.86	13.89	12.40	16.31
Total cost (in US dollars)	—	1,588,189	4,862,248	17,018,412	5,610,907	8,999,061	38,078,817

Preference Share Buy-Back Programme

On 26 February 2015, the Board approved, with effect from 5 May 2015, the 2015 preference share buy-back programme, authorising the purchase for cancellation of up to 5,000 preference shares.

	Nine months ended	Year ended 31 December
Preference share buy-backs	30 September 2017	2016	2015	2014	2013	2012	Total
Acquired number of shares (to the nearest 1)	—	—	183	560	11,972	4,422	17,137
Average cost per preference share	—	—	1,151.55	1,172.26	1,230.26	1,218.40	1,224.46
Total cost (in US dollars)	—	—	210,734	656,465	14,728,624	5,387,777	20,983,600

34

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Note 19: Accumulated other comprehensive loss

	Unrealised (losses) on translation of net investment in foreign operations		HTM  investments		Unrealised  gains (losses)  on AFS  investments		Employee benefit plans
30 September 2017							Pension		Post-retirement  healthcare		Subtotal -  employee benefits plans		Total AOCL
Balance at beginning of period	(20,152	)	(979	)	(22,680	)	(63,232	)	(37,637	)	(100,869	)	(144,680	)
Other comprehensive income (loss), net of taxes	2,243		109		16,046		541		2,067		2,608		21,006
Balance at end of period	(17,909	)	(870	)	(6,634	)	(62,691	)	(35,570	)	(98,261	)	(123,674	)
	Unrealised (losses)  on translation of  net investment in  foreign  operations		HTM  investments		Unrealised  gains (losses)  on AFS  investments		Employee benefit plans
30 September 2016							Pension		Post- retirement  healthcare		Subtotal -  employee benefits plans		Total AOCL
Balance at beginning of period	(13,645	)	(2,350	)	(57	)	(46,331	)	(28,114	)	(74,445	)	(90,497	)
Transfer of AFS investments to HTM investments	—		1,442		(1,442	)	—		—		—		—
Other comprehensive income (loss), net of taxes	(5,207	)	(124	)	27,176		1,232		(2,709	)	(1,477	)	20,368
Balance at end of period	(18,852	)	(1,032	)	25,677		(45,099	)	(30,823	)	(75,922	)	(70,129	)

Net Change of AOCL Components		Three months ended				Nine months ended
	Line item in the consolidated statements of operations, if any	30 September 2017		30 September 2016		30 September 2017		30 September 2016
Net unrealised gains (losses) on translation of net investment in foreign operations adjustments
Foreign currency translation adjustments	N/A	4,367		(2,891	)	11,277		(19,086	)
Gains (loss) on net investment hedge	N/A	(3,269	)	2,121		(9,034	)	13,879
Net change		1,098		(770	)	2,243		(5,207	)
Held-to-maturity investment adjustments
Net unamortised gains (losses) transferred from AFS	N/A	—		—		—		1,442
Amortisation of net gains (losses) to net income	Interest income on investments	21		21		109		(124	)
Net change		21		21		109		1,318
Available-for-sale investment adjustments
Gross unrealised gains (losses)	N/A	7,165		(2,149	)	20,292		27,095
Net unrealised (gains) losses transferred to HTM	N/A	—		—		—		(1,442	)
Transfer of realised (gains) losses to net income	Net realised gains (losses) on AFS investments	(2,468	)	3		(4,246	)	81
Net change		4,697		(2,146	)	16,046		25,734
Employee benefit plans adjustments
Defined benefit pension plan
Amortisation of actuarial losses	Salaries and other employee benefits	560		426		1,676		1,277
Change in deferred taxes	N/A	—		—		—		(140	)
Foreign currency translation adjustments of related balances	N/A	(403	)	17		(1,135	)	95
Net change		157		443		541		1,232
Post-retirement healthcare plan
Amortisation of net actuarial losses	Salaries and other employee benefits	879		682		2,636		2,048
Amortisation of prior service credit	Salaries and other employee benefits	(189	)	(1,585	)	(569	)	(4,757	)
Net change		690		(903	)	2,067		(2,709	)
Other comprehensive income (loss), net of taxes		6,663		(3,355	)	21,006		20,368

35

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

Note 20: Capital structure

Authorised Capital

On 16 September 2016, the Bank began trading on the New York Stock Exchange under the ticker symbol "NTB". The offering of 12,234,042 common shares consisted of 5,957,447 newly issued common shares sold by Butterfield and 6,276,595 common shares sold by certain selling shareholders, including 1,595,744 common shares sold by certain of the selling shareholders pursuant to the underwriters’ option to purchase additional shares, which was exercised in full prior to the closing.

On 25 July 2016, the Bank’s board of directors approved a consolidation of the existing common shares on the basis of a 10 to 1 ratio, subject to shareholder approval. As a result of this consolidation, effective 6 September 2016 upon shareholder approval, every 10 common shares of par value BM$0.01 were consolidated into 1 common share of par value BM$0.10 (the “Share Consolidation”).

In addition, as of 6 September 2016, the par value of each issued common share and each authorised but unissued common share was reduced from BM$0.10 to BM$0.01 and the authorised share capital of the Bank was correspondingly reduced from 2,000,000,000 common shares of par value BM$0.10 each, 6,000,000,000 non‑voting ordinary shares of par value BM$0.01 each, 110,200,001 preference shares of par value US$0.01 each and 50,000,000 preference shares of par value £0.01 each to 2,000,000,000 common shares of par value BM$0.01 each, 6,000,000,000 non‑voting ordinary shares of par value BM$0.01 each, 110,200,001 preference shares of par value US$0.01 each and 50,000,000 preference shares of par value £0.01 each, without any payment by the Bank to the holders of the voting ordinary shares in respect thereof (the “Reduction in Par Value” and together with the Share Consolidation, the “Reverse Share Split”).

Immediately following the Reduction in Par Value, the Bank repurchased any and all fractions of common shares issued and outstanding following the Reduction in Par Value, from the holders thereof. All share, share‑based payments and dividend information presented in these consolidated financial statements and accompanying footnotes has been retroactively adjusted to reflect the decreased number of shares resulting from this action.

Prior to the Reverse Share Split, the Bank’s total authorised share capital consisted of (i) 20 billion common shares of par value BM$0.01, (ii) 6 billion non‑voting ordinary shares of par value BM$0.01; (iii) 100,200,001 preference shares of par value US$0.01 and (iv) 50 million preference shares of par value £0.01.

Preference Shares

On 22 June 2009, the Bank issued 200,000 Government guaranteed, 8.00% non-cumulative perpetual limited voting preference shares (the “preference shares”). The issuance price was US$1,000 per share. The preference share buy-backs are disclosed in Note 18: Share Buy-Back Plans.

The preference share principal and dividend payments are guaranteed by the Government of Bermuda. At any time after the expiry of the guarantee offered by the Government of Bermuda, and subject to the approval of the BMA, the Bank would have been able to redeem, in whole or in part, any preference shares at the time issued and outstanding, at a redemption price equal to the liquidation preference plus any unpaid dividends at the time.

Holders of preference shares were entitled to receive, on each preference share only when, as and if declared by the Board of Directors, non-cumulative cash dividends at a rate per annum equal to 8.00% on the liquidation preference of US$1,000 per preference share payable quarterly in arrears. In exchange for the Government's commitment, the Bank issued to the Government a warrant that, upon issuance, allowed the purchase of 427,960 common shares of the Bank at an exercise price of $70.10 per share. The warrant which, after adjustments in accordance with anti-dilution terms allowed for the purchase of 432,028 shares with an exercise price of $34.72 per share was repurchased and cancelled by the Bank in December 2016.

On 15 December 2016, the Bank effected a mandatory redemption of its preference shares by paying a make-whole redemption payment (the "make-whole redemption price") of USD $1,180.00 per preference share to preference shareholders of record as at 1 December 2016. The make-whole redemption price comprises the sum of the dividend per preference share for the current quarter, the $1,000 liquidation preference per preference share, discounted for present value, and the present value of future dividend payments through 22 June 2019. Following the payment of the make-whole redemption price, all issued and outstanding preference shares were redeemed, cancelled and reverted to authorised but unissued preference shares of the Bank. The preference shares were also delisted from both the BSX and the Luxembourg Stock Exchange.

Dividends Declared

During the nine months ended 30 September 2017, the Bank paid cash dividends of $0.96 (30 September 2016: $0.30) for each common share as of the related record dates. During the nine months ended 30 September 2016, the Bank declared the full 8.00% cash dividends on preference shares. As the preference shares were completely redeemed on 15 December 2016, there were nil cash dividends on preference shares for the nine months ended 30 September 2017.

The Bank is required to comply with Section 54 of the Companies Act 1981 issued by the Government of Bermuda (the “Companies Act”) each time a dividend is declared or paid by the Bank and also obtain prior written approval from the BMA pursuant to the Banks and Deposit Companies Act 1999 for any dividends declared. The Bank has complied with Section 54 and has obtained BMA approval for all dividends declared during the periods under review.

Regulatory Capital

Effective 1 January 2016, the Bank’s regulatory capital is determined in accordance with current Basel III guidelines as issued by the Bermuda Monetary Authority (“BMA”). Basel III adopts Common Equity Tier 1 (“CET1”) as the predominant form of regulatory capital with the CET1 ratio as a new metric. Basel III also adopts the new Leverage Ratio regime, which is calculated by dividing Tier 1 capital by an exposure measure. The Leverage Ratio Exposure Measure consists of total assets (excluding items deducted from Tier 1 capital) and certain off-balance sheet items converted into credit exposure equivalents as well as adjustments for derivatives to reflect credit risk and other risks. Prior to 1 January 2016, the Bank’s regulatory capital was determined in accordance with Basel II guidelines as issued by the BMA.

The Bank is fully compliant with all regulatory capital requirements and maintains capital ratios in excess of regulatory minimums as at 30 September 2017 and 31 December 2016. The following table sets forth the Bank's capital adequacy in accordance with the Basel III framework:

36

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

	30 September 2017				31 December 2016
	Actual		Regulatory minimum		Actual		Regulatory minimum
Capital
Common Equity Tier 1	740,206		N/A		666,847		N/A
Tier 1 capital	740,206		N/A		666,847		N/A
Tier 2 capital	85,458		N/A		102,709		N/A
Total capital	825,664		N/A		769,556		N/A
Risk Weighted Assets	4,152,653		N/A		4,365,440		N/A
Leverage Ratio Exposure Measure	10,986,431		N/A		11,516,303		N/A
Capital Ratios (%)
Common Equity Tier 1	17.8	%	8.8	%	15.3	%	8.1	%
Total Tier 1	17.8	%	10.3	%	15.3	%	9.6	%
Total Capital	19.9	%	14.9	%	17.6	%	15.3	%
Leverage ratio	6.7	%	5.0	%	5.8	%	5.0	%

Note 21: Business combinations

Bermuda Trust Company Limited and the Private Banking Investment Management of Operations of HSBC Bank Bermuda Limited Acquisition

On 29 April 2016, the Bank and two of its subsidiaries, Butterfield Trust (Bermuda) Limited ("BTBL") and Butterfield Asset Management Limited ("BAM"), acquired for a total purchase price of $21.8 million: 1) all outstanding shares of Bermuda Trust Company Limited ("BTCL", a wholly–owned subsidiary of HSBC Bank Bermuda Limited ("HSBCBB")), 2) certain assets of the asset management services operations of HSBCBB and 3) certain assets of the private banking services operations of HSBCBB. The acquisition is in line with the Bank's growth strategy of developing core businesses in existing markets and was undertaken to add scale to the Bank capacity in these market segments where the Bank had already a significant presence and a long history.

The acquisition date fair value of consideration transferred amounted to $21.8 million comprising cash settlement of $7.0 million paid on 29 April 2016, a second payment of $2.1 million made on 6 May 2016, and contingent considerations payable in the second half of 2016 and evaluated at $12.7 million. The contingent considerations were dependent on the trust and asset management clients retention by BNTB before the end of the contingency period in September 2016 and the amount paid was $12.7 million.

The fair value of the net assets acquired and allocation of purchase is summarised as follows:

	As at
	29 April 2016
Total consideration transferred	21,778
Assets acquired
Intangible assets	21,443
Other assets	3,345
Total assets acquired	24,788
Liabilities acquired	3,010
Excess purchase price (goodwill)	—

The purchase price paid by the Bank was for BTCL's net tangible value as well as intangible assets of $21.4 million in the form of customer relationships in all three segments with an estimated finite useful life of 15 years.

The Bank incurred transaction expenses related to this acquisition in the amount of $4.3 million, of which $3.3 million were expensed during the year ended 31 December 2016 (including $0.7 million of legal and professional fees) and $1.0 million were expensed during the year ended 31 December 2015 (including $1.0 million of legal and professional fees).

For the year ended 31 December 2016, the amount of revenues and earnings relating to the acquired HSBC Bermuda operations that are not inextricably merged into the Bank’s operations are $9.8 million and $5.0 million respectively.

37

The Bank of N.T. Butterfield & Son Limited

Notes to the Consolidated Financial Statements (unaudited) (continued)

(In thousands of US dollars, unless otherwise stated)

The following selected unaudited pro forma financial information has been provided to present a summary of the combined results of the Bank and the acquired operations from HSBC Bermuda, assuming the transaction had been effected on 1 January 2016. The unaudited pro forma data is for informational purposes only and does not necessarily represent results that would have occurred if the transaction had taken place on the basis assumed above. The pro forma have been prepared based on the actual results realised by the Bank from operating the acquired activities, when such activities were not yet inextricably merged into the Bank's operations.

	Three months ended	Nine months ended
Unaudited pro forma financial information	30 September 2016	30 September 2016
Total net revenue	101,581	300,215
Total non-interest operating expense	77,533	217,153
Pro forma net income post business combination	24,048	83,062

Note 22: Related party transactions

Financing Transactions

As of 17 May 2005, the Bank established a programme to offer loans with preferential rates to eligible Bank employees, subject to certain conditions set by the Bank and provided that such employees meet certain credit criteria. Loan payments are serviced by automatically debiting the employee’s chequing or savings account with the Bank. Applications for loans are handled according to the same policies as those for the Bank's retail banking clients. The Bank's ability to offer preferential rates on loans depends upon a number of factors, including market conditions, regulations and the Bank's overall profitability. The Bank has the right to change its employee loan policy at any time after notifying participants.

Certain directors and executives of the Bank, companies in which they are principal owners, and trusts in which they are involved, have loans with the Bank. Loans to directors were made in the ordinary course of business at normal credit terms, including interest rate and collateral requirements. Loans to executives may be eligible to preferential rates as described in the preceding paragraph. As at 30 September 2017, related party director and executive loan balances were $31.9 million (31 December 2016: $12.1 million). During the nine months ended 30 September 2017, new issuance of loans and change in directorships to directors and executives were $31.7 million and repayments and change in directorships were $7.6 million (year ended 31 December 2016: $27.6 and $25.1 million). Also, during the three months ended 30 September 2017, a Director resigned from the Board resulting in $4.3 million in loans being reclassified out of related party loans (year ended 31 December 2016: $54.3 million). All of these loans were considered performing loans as at 30 September 2017 and 31 December 2016.

On 6 October 2015, the Bank executed a $6 million loan agreement with a related party of an executive which provides for maturity on 31 October 2017. This loan was made in the ordinary course of business on normal commercial terms. At 30 September 2017, $0.3 million was outstanding under this agreement. For the nine months ended 30 September 2017, $0.1 million of interest income has been recognised in the consolidated statements of operations in relation with this agreement.

For the nine months ended 30 September 2017, the Bank has recognised $1.6 million (31 December 2016: $2.2 million) of non-interest expenses in the consolidated statement of operations relating to an affiliate which the Bank holds an investment in.

Capital Transaction

Up to 28 February 2017, investment partnerships associated with The Carlyle Group held approximately 14% of the Bank's equity voting power along with the right to designate two persons for nomination for election by the shareholders as members of the Bank’s Board of Directors. On 28 February 2017, as a result of a secondary public offering, the Carlyle Group sold their holdings in the Bank, and as a result, the investment agreement between the Bank and the Carlyle Group, which provided, amongst other rights, the right to designate two persons for nomination for election by the shareholders as members of the Bank's Board of Directors, was terminated.

Financial Transactions With Related Parties

The Bank holds seed investments in several Butterfield mutual funds, which are managed by a wholly-owned subsidiary of the Bank. As at 30 September 2017, these investments have a fair value of $5.0 million with an unrealized gain of $1.5 million (31 December 2016: $5.0 million and $1.1 million) and were included in trading investments at their fair value. During the nine months ended 30 September 2017, the Bank earned $5.5 million (30 September 2016: $4.2 million) in asset management revenue from funds managed by a wholly-owned subsidiary of the Bank.

Note23: Subsequent events

The Bank announced on 25 October 2017 that it has entered into an agreement to acquire Deutsche Bank’s Global Trust Solutions business, excluding its US operations. Final terms of the agreement are not yet available.

On 24 October 2017, the Board of Directors declared an interim dividend of $0.32 per common share to be paid on 27 November 2017 to shareholders of record on 13 November 2017.

On 6 October 2017, the Board of Directors announced the appointment of Meroe Park to the Board as a Non-Executive Director.

38

EX-99.3

2017 Q3 Analyst Call The Bank of N.T. Butterfield & Son Limited October 25, 2017

2 Forward-Looking Statements Forward-Looking Statements: Certain of the statements made in this presentation are “forward-looking statements” within the meaning and protections of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements include statements with respect to our current beliefs, plans, objectives, goals, expectations, anticipations, assumptions, estimates, intentions, and future performance, and involve known and unknown risks, uncertainties and other factors, which may be beyond our control, and which may cause our actual results, performance, capital, ownership or achievements to be materially different from future results, performance or achievements expressed or implied by such forward-looking statements. Our performance may vary due to a variety of factors, including worldwide economic conditions, success in business retention and obtaining new business and other factors. All statements other than statements of historical fact are statements that could be forward-looking statements. You can identify these forward-looking statements through our use of words such as “may,” “will,” “anticipate,” “assume,” “should,” “indicate,” “would,” “believe,” “contemplate,” “expect,” “estimate,” “continue,” “plan,” “point to,” “project,” “could,” “intend,” “target” and other similar words and expressions of the future. All written or oral forward-looking statements attributable to us are expressly qualified in their entirety by this cautionary notice, including, without limitation, those risks and uncertainties described in our Securities and Exchange Commission (“SEC”) reports and filings. Such reports are available upon request from the Bank, or from the SEC, including through the SEC’s Internet website at http:// www.sec.gov. We have no obligation and do not undertake to update, revise or correct any of the forward-looking statements after the date hereof, or after the respective dates on which any such statements otherwise are made. About Non-GAAP Financial Measures: This presentation contains non-GAAP financial measures including “core” net income and other financial measures presented on a “core” basis.  We believe such measures provide useful information to investors that is supplementary to our financial condition, results of operations and cash flows computed in accordance with GAAP; however, our non-GAAP financial measures have a number of limitations.  As such, investors should not view these disclosures as a substitute for results determined in accordance with GAAP, and they are not necessarily comparable to non-GAAP financial measures that other companies use. Reconciliations of these non-GAAP measures to corresponding GAAP financial measures are provided in the Appendix of this presentation. All information in $millions and as of 30 September 2017 unless otherwise indicated . Conversion rate: 1 BMD$ = 1 US$.

3 Q3 2017 Earnings Call Presenters Agenda Six International Locations Butterfield Overview Michael Collins Chairman & Chief Executive Officer Michael Schrum Chief Financial Officer Dan Frumkin Chief Operating Officer • Leading Bank in Attractive Markets • Strong Capital Generation and Return • Efficient, Conservative Balance Sheet • Visible Earnings • Overview • Financials • Summary • Q&A Awards

4 Q3 2017 Highlights Q3 Q4 Q1 Q2 Q3 $33.4 $37.1 $38.5 $37.5 $40.7 Core Net Income** Butterfield Peer average *** Q3 Q4 Q1 Q2 Q3 19.0% 19.3% 23.4% 21.6% 22.2% 12.9% 12.9% 12.9% 10.5% Core Return on Average Tangible Common Equity** vs. Q2 2017 vs. Q3 2016 Q3 2017 $ % $ % Net Interest Income $ 74.3 $ 2.8 3.9 % $ 9.3 14.2 % Non-Interest Income 38.2 (0.5) (1.2)% 2.0 5.4 % Prov. for Credit Losses 0.7 1.2 (228.8)% 1.0 (315.3)% Non-Interest Expenses* (73.8) (1.7) (2.2)% (3.7) (4.8)% Other Gains (Losses) 1.8 (0.2) (11.6)% 1.1 181.3 % Net Income $ 41.1 $ 5.0 14.0 % $ 17.0 70.9 % Non-Core Items** (0.4) (1.8) (128.6)% (9.8) (104.5)% Core Net Income** $ 40.7 $ 3.2 8.5 % $ 7.3 21.7 % 2016 2017 2016 2017 * Includes income taxes ** See the Appendix for a reconciliation of the non-GAAP measure. *** Includes US banks identified by management as a peer group. See the Appendix for a list of these banks. **** Announced subsequent to quarter-end. • Net income of $41.1 million, or $0.74 per share • Core Net Income** of $40.7 million, or $0.73 per share • Net Interest Margin of 2.81%, cost of deposits of 0.10% • Return on average common equity of 20.7%; core return on average tangible common equity** of 22.2% • Butterfield to acquire Global Trust Solutions business from Deutsche Bank****

Financials

6 Income Statement Net Interest Income Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 $60.0 $65.0 $71.5 $74.3 Net Interest Income before Provision for Credit Losses - Trend Q3 2017 vs. Q2 2017 Avg. Balance Yield Avg. Balance Yield Cash, S/T Inv. & Repos $ 2,241.5 0.81% $ (395.3) 0.13% Investments 4,561.9 2.22% 22.7 0.02% Loans (net) 3,682.3 5.16% 75.6 0.05% Interest Earning Assets 10,485.8 2.95% Total Liabilities 10,042.0 0.15% (338.9) —% Net Interest Margin 2.81% 0.15% Net Interest Margin & Yields 2015 2016 2017 • Continued margin expansion resulting from higher short-term rates. • Increase in commercial loan yields improved lending margins.

7 Income Statement Non-Interest Income Non-Interest Income Trend vs. Q2 2017 Q3 $ % Asset management $ 6.3 $ 0.4 6.5 % Banking 10.8 (0.1) (1.3)% FX Revenue 7.6 — 0.3 % Trust 10.9 (0.3) (2.7)% Custody and Other 2.0 0.1 6.5 % Other 0.5 (0.6) (50.4)% Total Non-Interest Income $ 38.2 $ (0.5) (1.2)% Non-Interest Income Fee Income Ratio Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 $34.2 $36.3 $38.7 $38.2 34.0% • Acquisition of Global Trust Solutions (“GTS”) business from Deutsche Bank will add scale and talent to existing trust operations in Switzerland, Guernsey and Cayman and add a profitable and strategically important private trust platform in Singapore. • GTS will generate stable trust fee income and will be accretive once integrated. • Stability of non-interest income supported by diversification of fee-related businesses. • Fee income ratio of 34.0% remains well above peers* and increases returns on equity. 2015 2016 2017 *Includes US banks identified by management as a peer group. Please see the Appendix for a list of these banks.

8 Income Statement Non-Interest Expenses Non Interest Expense Trend *** Core Non-Interest Expenses* vs. Q2 2017 Q3 $ % Salaries & Benefits $ 37.2 $ 0.1 0.3 % Technology & Comm. 13.1 (0.2) (1.5)% Property 5.1 (0.2) (3.8)% Professional & O/S Services 5.6 (0.1) (1.8)% Indirect Taxes 4.6 0.1 2.2 % Intangible Amortization 1.0 (0.1) (9.1)% Marketing 0.9 (1.5) (62.5)% Other ** 4.2 (0.6) (12.5)% Total Core Non-Interest Expenses* $ 71.8 $ (2.4) (3.2)% Non-Core Expenses* 2.0 0.6 (42.4)% Non-Interest Expenses*** $ 73.8 $ (1.8) (2.3)% Non-Interest Expenses Core Efficiency Ratio Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 $67.6 $77.5 $75.6 $73.8 66.8% 65.3% 66.1% 62.8% • Elevated expense levels in Q3 due to Sarbanes Oxley-related costs, investment in compliance systems and processes, and Group Service Center (Halifax) build out. • Increased professional fees expenses related to the acquisitions of GTS. • Expecting to return to normalized cost / income ratios in the short term. 2015 2016 2017 * See the Appendix for a reconciliation of the non-GAAP measure. ** Includes Other Non-Interest Expenses and Income Taxes *** Includes Income Taxes

9 Capital Requirements and Return Leverage Capital • Continued conservative capital management provides capacity for acquisitions. • $0.32 per share dividend declared for 3rd quarter. • Butterfield continues to build capital resulting in leverage capital at the high end of target capital range. Regulatory Capital (Basel III) - Total Capital Ratio Butterfield Current BMA 2017 Required US Peer Average * 19.9% 14.9% 15.1% * Includes US banks identified by management as a peer group. Please see the Appendix for a list of these banks. TCE/TA TCE/TA Ex Cash Butterfield - Pre IPO Butterfield - Current US Peer Median * 5.0% 7.0% 8.2% 1.6% 1.3% 0.6% 6.6% 8.3% 8.8%

10 Balance Sheet Total Assets • Loan balances flat with paydowns in commercial lending offset by growth in residential mortgages. • Cash balances within target range due to further deployment into short-dated securities and slightly lower deposit balances. • Cost of deposit steady at 0.10%. Q3 2017 Q2 2017 Cash & Equivalents $ 1,546 $ 1,720 S/T Inv. & Reverse Repos 418 478 Loans (net) 3,664 3,588 Investments 4,613 4,558 Other Assets 338 335 Total Assets $ 10,578 $ 10,679 Int. Bearing Deposits $ 7,036 $ 7,150 Non-Int. Bearing Deposits 2,371 2,329 Other Liabilities 368 430 Shareholders Equity 802 770 Total Liab. & Equity $ 10,578 $ 10,679 Total assets Investments Loans Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 $10.2 $11.0 $10.7 $10.6 $3.3 $4.1 $4.6 $4.6$4.0 $3.8 $3.6 $3.7 Total deposits Non-interest bearing Interest bearing Cost of deposits Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 $9.1 $9.7 $9.5 $9.4 0.19% 0.11% 0.11% 0.10% 2015 2016 2017 2015 2016 2017 Total Deposits

11 Asset Quality Non-Performing and Non-Accrual Loans Non-Performing Loans Non-Accrual Loans Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 $90.1 $83.0 $61.8 $61.8 Res Mtg: 66.0% Consumer: 5.1% Comm’l R/E: 16.3% Other Comm’l: 9.7% Gov’t: 2.9% Loan Distribution 2015 2016 2017 0.14% 0.12% 0.10% 0.08% 0.06% 0.04% 0.02% 0.00% Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 0.02% 0.03% 0.02% 0.02% Net Charge-Off Ratio AAA: 92.4% AA: 1.3% A: 3.3% BBB: 3.0% $3.7 billion $4.6 billion Investment Portfolio Rating Distribution 2015 2016 2017

12 Interest Rate Sensitivity Interest Rate Sensitivity**Average Balance - Balance Sheet Average Balances ($bn) Q3 2017 vs. Q2 2017 Duration vs. Q2 2017 Cash 1,984.8 (288.2) N/A N/A S/T Invest. 256.7 (107.1) 0.1 (0.1) AFS 3,265.0 (47.1) 2.4 0.2 HTM 1,296.1 69.7 5.8 (0.1) Total 6,802.6 (372.7) NTB US Peer Median * -100bps +100bps +200bps (13.6)% 6.2% 12.7% (6.4)% 4.5% 6.0% • The Bank remains significantly more sensitive to increases in interest rates relative to its US peers*. • Stability in franchise deposits continues to be valuable in a rising rate environment. • Cautiously optimistic that term rate market will be more constructive in the near term. * Includes US banks identified by management as a peer group. Please see the Appendix for a list of these banks. ** These projections present the estimated change in net interest income assuming gradual parallel shifts of the yield curve in even increments over the first twelve months, followed by rates held constant thereafter.

Summary Q&A Appendices

14 Appendix Balance Sheet Trends 2017 2016 2015 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Assets Cash & Equivalents $ 1,546 $ 1,720 $ 1,867 $ 2,102 $ 1,485 $ 2,655 $ 1,774 $ 2,289 $ 2,262 $ 2,101 $ 2,060 Reverse Repos 210 184 63 149 186 — — — — — — S/T Investments 208 294 542 520 995 436 425 409 331 380 342 Investments 4,613 4,558 4,549 4,400 4,114 3,870 3,679 3,224 3,286 3,245 3,086 Loans, Net 3,664 3,588 3,573 3,570 3,836 3,904 3,953 4,000 3,974 3,977 3,922 Other Assets 338 335 350 363 363 422 355 354 364 367 390 Total Assets $ 10,578 $ 10,679 $ 10,944 $ 11,104 $ 10,979 $ 11,287 $ 10,186 $ 10,276 $ 10,217 $ 10,070 $ 9,800 Liabilities and Equity Total Deposits $ 9,407 $ 9,479 $ 9,849 $ 10,034 $ 9,667 $ 10,091 $ 8,939 $ 9,182 $ 9,111 $ 9,001 $ 8,600 Long-Term Debt 117 117 117 117 117 117 117 117 117 117 117 Other Liabilities 252 313 236 242 230 263 343 227 215 213 212 Total Liabilities $ 9,776 $ 9,909 $ 10,203 $ 10,393 $ 10,014 $ 10,471 $ 9,399 $ 9,526 $ 9,443 $ 9,331 $ 8,929 Common Equity $ 802 $ 770 $ 741 $ 711 $ 782 $ 633 $ 604 $ 567 $ 591 $ 556 $ 688 Preferred Equity — — — — 183 183 183 183 183 183 183 Total Equity $ 802 $ 770 $ 741 $ 711 $ 965 $ 816 $ 787 $ 750 $ 774 $ 739 $ 871 Total Liabilities and Equity $ 10,578 $ 10,679 $ 10,944 $ 11,104 $ 10,979 $ 11,287 $ 10,186 $ 10,276 $ 10,217 $ 10,070 $ 9,800 Key Metrics TCE / TA 7.0% 6.7% 6.2% 5.9% 6.6% 5.0% 5.5% 5.1% 5.3% 5.0% 6.5% CET 1 Ratio 17.8% 17.0% 15.8% 15.3% 16.1% 12.3% 12.4% N/A N/A N/A N/A Total Tier 1 Capital Ratio 17.8% 17.0% 15.8% 15.3% 20.5% 16.5% 16.4% 16.2% 15.8% 15.6% 17.9% Total Capital Ratio 19.9% 19.1% 17.9% 17.6% 22.9% 18.9% 18.7% 19.0% 18.6% 18.5% 20.8%

15 Appendix Average Balance Sheet Trends 2017 - Q3 2017 - Q2 2017 - Q1 Assets Average balance ($) Interest ($) Average rate (%) Average balance ($) Interest ($) Average rate (%) Average balance ($) Interest ($) Average rate (%) Cash due from banks, reverse repurchase agreements and short-term investments $ 2,241.5 $ 4.6 0.81% $ 2,636.9 $ 4.5 0.68% $ 2,476.7 $ 3.5 0.57% Investment in securities 4,561.9 25.5 2.22% 4,539.2 24.9 2.20% 4,556.4 24.4 2.17% Trading 0.8 — —% 0.8 — —% 0.7 — —% AFS 3,265.0 16.3 1.98% 3,312.1 16.1 1.95% 3,358.7 15.9 1.92% HTM 1,296.1 9.2 2.83% 1,226.3 8.9 2.90% 1,196.9 8.6 2.90% Loans 3,682.3 47.9 5.16% 3,606.8 46.0 5.11% 3,661.1 44.0 4.87% Commercial 1,240.3 16.0 5.11% 1,199.6 14.7 4.92% 1,361.5 15.1 4.49% Consumer 2,442.0 31.9 5.19% 2,407.1 31.2 5.20% 2,229.6 28.9 5.10% Total interest earning assets 10,485.8 78.0 2.95% 10,782.9 75.3 2.80% 10,694.1 71.9 2.73% Other assets 327.8 359.5 352.7 Total assets $ 10,813.5 $ 78.0 2.86% $ 11,142.4 $ 75.3 2.71% $ 11,046.8 $ 71.9 2.64% Liabilities Interest bearing deposits $ 7,255.3 $ (2.5) 0.14% $ 7,635.2 $ (2.7) 0.14% $ 7,656.2 $ (2.8) 0.15% Customer demand deposits 5,367.2 (0.1) 0.01% 5,634.8 (0.3) 0.02% 5,411.2 (0.3) 0.02% Customer term deposits 1,873.8 (2.3) 0.48% 1,991.5 (2.4) 0.47% 2,177.7 (2.4) 0.44% Deposits from banks 14.3 (0.1) 2.65% 8.8 (0.1) 2.70% 67.4 (0.1) 0.49% Long-term debt 117.0 (1.3) 4.26% 117.0 (1.2) 4.20% 117.0 (1.2) 4.14% Interest bearing liabilities 7,372.3 (3.7) 0.20% 7,752.2 (3.9) 0.20% 7,773.2 4.0 0.21% Non-interest bearing customer deposits 2,413.9 2,377.6 2,334.1 Other liabilities 255.7 251.1 257.0 Total liabilities $ 10,042.0 $ (3.7) 0.15% $ 10,380.9 $ (3.9) 0.15% $ 10,364.3 $ (4.0) 0.16% Shareholders’ equity 771.6 761.5 682.5 Total liabilities and shareholders’ equity $ 10,813.5 $ 11,142.4 $ 11,046.8 Non-interest bearing funds net of non-interest earning assets (free balance) $ 3,113.4 $ 3,030.7 $ 2,920.9 Net interest margin $ 74.4 2.81% $ 71.5 2.66% $ 67.9 2.58%

16 Appendix Income Statement Trends 2017 2016 2015 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Net Interest Income $ 74.3 $ 71.5 $ 67.9 $ 66.8 $ 65.0 $ 64.3 $ 62.3 $ 61.2 $ 60.0 $ 59.3 $ 58.8 Non-Interest Income 38.2 38.7 38.5 38.8 36.3 37.9 34.5 37.3 34.2 34.5 34.1 Prov. for Credit Losses (0.7) 0.5 (0.3) (0.9) 0.3 5.3 (0.3) 2.6 0.9 2.0 0.2 Non-Interest Expenses 73.8 75.6 71.2 71.9 77.5 67.0 70.2 87.9 67.6 65.3 65.7 Other Gains (Losses) 1.8 2.0 0.2 0.8 0.6 (0.2) (0.2) (10.3) 3.1 (3.2) 1.0 Net Income $ 41.1 $ 36.1 $ 35.9 $ 35.4 $ 24.0 $ 29.8 $ 26.8 $ (2.3) $ 28.8 $ 23.3 $ 28.0 Non-Core Items* $ (0.4) $ 1.4 $ 2.6 $ 1.7 $ 9.4 $ 2.3 $ 9.2 $ 30.1 $ 0.5 $ 4.5 $ 1.0 Core Net Income $ 40.7 $ 37.5 $ 38.5 $ 37.1 $ 33.4 $ 32.1 $ 36.0 $ 27.8 $ 29.3 $ 27.8 $ 29.0 Key Metrics Loan Yield 5.16% 5.11% 4.87% 4.92% 4.75% 4.72% 4.74% 4.63% 4.61% 4.66% 4.63% Securities Yield 2.22 2.20 2.17 1.98 1.91 1.87 2.07 2.08 2.10 2.33 2.16 Interest Bearing Dep. Cost 0.14 0.14 0.15 0.13 0.11 0.12 0.15 0.18 0.19 0.22 0.23 Net Interest Margin 2.81 2.66 2.58 2.45 2.39 2.44 2.54 2.48 2.43 2.52 2.48 Core Efficiency Ratio* 62.8 66.1 63.2 65.6 65.3 61.8 62.5 63.7 66.8 66.7 66.8 Core ROATCE* 22.2 21.6 23.4 19.3 19.0 20.1 23.7 17.7 19.3 17.6 16.0 Fee Income Ratio 34.0 35.1 36.1 36.4 35.9 39.1 35.5 38.9 36.7 37.6 36.8 Fully Diluted Share Count (in millions of common shares) 55.5 55.6 55.2 54.7 49.0 49.0 47.4 47.3 47.4 49.9 55.7 * See the Appendix for a reconciliation of the non-GAAP measure.

17 Appendix Non-Interest Income & Expense Trends 2017 2016 2015 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Non-Interest Income Trust $ 10.9 $ 11.3 $ 11.4 $ 11.5 $ 11.6 $ 10.8 $ 10.1 $ 10.3 $ 9.9 $ 10.2 $ 10.0 Asset Management 6.3 5.9 5.8 6.0 5.6 5.3 4.2 5.3 4.7 4.6 4.3 Banking 10.8 10.9 10.0 11.0 9.7 10.0 8.7 10.2 8.5 8.2 8.3 FX Revenue 7.6 7.5 8.3 7.4 6.5 8.4 8.3 8.3 7.6 8.0 7.9 Custody & Other Admin. 2.0 1.9 2.0 2.0 2.3 2.3 2.2 2.3 2.3 2.5 2.4 Other 0.5 1.1 0.9 0.9 0.6 1.0 1.0 0.9 1.2 1.0 1.2 Total Non-Interest Income $ 38.2 $ 38.7 $ 38.5 $ 38.8 $ 36.3 $ 37.9 $ 34.5 $ 37.3 $ 34.2 $ 34.5 $ 34.1 Non-Interest Expense Salaries & Benefits $ 37.4 $ 37.4 $ 36.0 $ 34.2 $ 42.4 $ 32.2 $ 31.2 $ 37.8 $ 32.1 $ 32.3 $ 32.7 Technology & Comm. 13.2 13.4 12.9 14.5 14.4 14.1 14.5 14.6 14.7 13.9 13.9 Property 5.1 5.4 4.9 5.5 5.4 5.1 5.0 5.5 5.7 5.2 5.2 Professional & O/S Services 6.9 6.1 6.2 5.4 4.1 5.4 4.1 13.7 5.8 4.1 4.1 Indirect Taxes 4.6 4.5 4.2 4.7 4.2 2.8 4.6 1.6 4.2 3.8 4.3 Intangible Amortization 1.0 1.1 1.0 1.0 1.2 1.3 1.1 1.1 1.1 1.1 1.1 Marketing 0.9 2.4 1.0 1.7 0.9 1.0 0.9 1.2 0.7 1.1 0.9 Restructuring 0.4 0.6 0.4 0.5 0.6 0.7 4.5 2.2 — — — Other 4.0 4.5 4.3 4.4 4.4 4.2 4.0 9.5 3.1 3.6 3.3 Total Non-Interest Expense $ 73.6 $ 75.3 $ 71.0 $ 71.9 $ 77.3 $ 66.7 $ 69.9 $ 87.2 $ 67.4 $ 65.1 $ 65.5 Income Taxes 0.2 0.3 0.2 — 0.2 0.2 0.3 0.7 0.2 0.2 0.2 Total Expense incld. Taxes $ 73.8 $ 75.6 $ 71.2 $ 71.9 $ 77.5 $ 67.0 $ 70.2 $ 87.9 $ 67.6 $ 65.3 $ 65.7

18 Appendix Core Non-Interest Expense Trends 2017 2016 2015 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Salaries & Benefits $ 37.2 $ 37.1 $ 35.9 $ 34.0 $ 33.6 $ 31.5 $ 29.6 $ 31.0 $ 31.4 $ 32.1 $ 31.8 Technology & Comm. 13.1 13.3 12.8 14.4 14.2 13.8 13.9 14.4 14.6 13.6 13.8 Property 5.1 5.3 4.9 5.5 5.3 5.0 5.0 5.5 5.7 5.2 5.2 Professional & O/S Services 5.6 5.7 4.3 5.4 3.9 4.8 3.0 4.5 3.4 3.1 2.7 Indirect Taxes 4.6 4.5 4.3 3.9 3.9 2.8 4.6 1.5 4.2 3.8 4.2 Intangible Amortization 1.0 1.1 1.0 1.0 1.2 1.3 1.1 1.1 1.1 1.1 1.1 Marketing 0.9 2.4 1.0 1.7 0.9 1.0 0.9 1.2 0.7 1.1 0.9 Restructuring — — — — — — — — — — — Other 4.0 4.5 4.2 4.3 4.3 4.2 3.4 4.6 3.1 3.7 3.5 Total Core Non-Interest Expense $ 71.6 $ 73.9 $ 68.4 $ 70.2 $ 67.3 $ 64.4 $ 61.5 $ 63.8 $ 64.2 $ 63.7 $ 63.2 Income Taxes 0.2 0.3 0.2 — 0.2 0.2 0.3 0.7 0.2 0.2 0.2 Total Core Expense incld. Taxes $ 71.8 $ 74.2 $ 68.6 $ 70.2 $ 67.5 $ 64.6 $ 61.8 $ 64.5 $ 64.4 $ 63.9 $ 63.4

19 Appendix Non-GAAP Reconciliation (in millions of US Dollars, unless otherwise indicated) 2017 2016 2015 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Net income A $ 41.1 $ 36.1 $ 35.9 $ 35.4 $ 24.0 $ 29.8 $ 26.8 $ (2.3) $ 28.8 $ 23.3 $ 28.0 Dividends and guarantee fee of preference shares — — — (3.4) (4.1) (4.1) (4.1) (4.1) (4.1) (4.1) (4.1) Premium paid on repurchase of preference shares B — — — (41.9) — — — — — — — Net income to common shareholders C 41.1 36.1 35.9 (9.9) 19.9 25.7 22.7 (6.5) 24.7 19.2 23.9 Non-core (gains), losses and expenses Non-core (gains) losses Gain on disposal of a pass-through note investment (formerly a SIV) (2.5) — (0.1) (0.6) — — — — — — — Impairment of and gain on disposal of fixed assets (including software) — — — — — — — 5.1 — — (0.2) Change in unrealized (gains) losses on certain investments — — — — — — — 1.7 (3.0) 3.0 (1.2) Adjustment to holdback payable for a previous business acquisition 0.1 — 0.1 0.7 (0.7) — 0.9 — — — — Total non-core (gains) losses D $ (2.4) $ — $ — $ 0.1 $ (0.7) $ — $ 0.9 $ 6.8 $ (3.0) $ 3.0 $ (1.4) Non-core expenses Early retirement program, redundancies and other non-core compensation 0.1 0.1 — — 0.3 0.1 1.3 6.6 1.0 — 0.8 Tax compliance review costs 0.4 0.7 0.2 — 0.2 0.5 0.6 0.4 0.9 0.9 1.6 Provision in connection with ongoing tax compliance review — — — — — — 0.7 4.8 — — — Business acquisition costs 1.1 — — 1.1 0.2 1.0 1.2 0.2 0.3 0.6 — Restructuring charges and related professional service fees 0.4 0.6 0.4 0.5 0.6 0.7 4.5 2.5 — — — Investigation of an international stock exchange listing costs — — — — — — — 8.9 1.3 — — Cost of 2010 legacy option plan vesting and related payroll taxes — — — — 8.8 — — — — — — Secondary offering costs — — 2.0 — — — — — — — — Total non-core expenses E $ 2.0 $ 1.4 $ 2.6 $ 1.6 $ 10.1 $ 2.3 $ 8.3 $ 23.4 $ 3.5 $ 1.5 $ 2.4 Total non-core (gains), losses and expenses F=D+E (0.4) 1.4 2.6 1.7 9.4 2.3 9.2 30.2 0.5 4.5 1.0 Core net income G=A+F $ 40.7 $ 37.5 $ 38.5 $ 37.1 $ 33.4 $ 32.1 $ 36.0 $ 27.9 $ 29.3 $ 27.8 $ 29.0 Core net income attributable to common shareholders H=C-B+F 40.7 37.5 38.5 33.7 29.3 28.0 31.9 23.7 25.2 23.7 24.9 Average shareholders' equity 788.9 759.2 729.3 895.0 859.4 799.5 772.4 764.5 755.8 779.7 869.3 Less: average preference shareholders' equity — — — (137.1) (182.9) (182.9) (182.9) (182.9) (182.9) (182.9) (182.9) Average common equity I 788.9 759.2 729.3 757.9 676.5 616.6 589.5 581.6 572.9 596.8 686.4 Less: average goodwill and intangible assets (61.3) (61.6) (61.7) (62.9) (65.5) (57.4) (49.5) (52.6) (54.6) (55.3) (56.4) Average tangible common equity J 727.6 697.6 667.6 695.0 611.0 559.2 540.0 529.0 518.3 541.5 630.0 Return on equity C/I 20.7% 19.0% 19.9% (5.2)% 11.7% 16.7% 15.4% (4.4)% 17.1% 12.9% 14.1% Core return on average tangible common equity H/J 22.2% 21.6% 23.4% 19.3 % 19.0% 20.1% 23.7% 17.8 % 19.3% 17.6% 16.0% Core earnings per common share fully diluted Adjusted weighted average number of diluted common shares K 55.5 55.6 55.2 54.7 49.0 47.3 47.4 47.3 47.4 49.9 55.7 Earnings per common share fully diluted C/K 0.74 0.65 0.65 (0.19) 0.41 0.54 0.48 (0.14) 0.52 0.39 0.43 Non-core items per share (F-B)/K (0.01) 0.02 0.05 0.81 0.19 0.05 0.19 0.64 0.01 0.09 0.02 Core earnings per common share fully diluted 0.73 0.67 0.70 0.62 0.60 0.59 0.67 0.50 0.53 0.48 0.45

20 Appendix Non-GAAP Reconciliation (cont’d) (in millions of US Dollars, unless otherwise indicated) 2017 2016 2015 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Core return on average tangible assets Total average assets L $10,744.8 $10,981.8 $10,982.6 $11,106.3 $11,207.4 $10,794.8 $10,243.3 $10,083.5 $10,102.8 $ 9,870.8 $ 9,859.0 Less: average goodwill and intangible assets (61.3) (61.6) (61.7) (62.9) (65.5) (57.4) (49.5) (52.6) (54.6) (55.3) (56.4) Average tangible assets M $10,683.5 $10,920.2 $10,920.8 $11,043.4 $11,141.8 $10,737.3 $10,193.8 $10,030.8 $10,048.1 $ 9,815.4 $ 9,802.7 Return on average assets A/L 1.5% 1.3% 1.3% 1.3% 0.9% 1.1% 1.0% (0.1)% 1.1% 1.0% 1.2% Core return on average tangible assets G/M 1.5% 1.4% 1.5% 1.3% 1.2% 1.2% 1.4% 1.1 % 1.2% 1.1% 1.2% Tangible equity to tangible assets Shareholders' equity $ 802.4 $ 769.9 $ 741.0 $ 710.7 $ 964.7 $ 815.9 $ 786.9 $ 750.4 $ 773.9 $ 739.0 $ 871.5 Less: goodwill and intangible assets (61.4) (61.5) (61.4) (61.9) (64.6) (66.4) (49.1) (51.1) (53.3) (56.0) (54.7) Tangible total equity N 741.0 708.4 679.6 648.8 900.1 749.5 737.8 699.3 720.6 683.0 816.8 Less: preference shareholders' equity — — — — (182.9) (182.9) (182.9) (182.9) (182.9) (182.9) (182.9) Tangible common equity O 741.0 708.4 679.6 648.8 717.2 566.6 554.9 516.4 537.7 500.1 633.9 Total assets 10,578.4 10,678.7 10,943.6 11,103.5 10,978.5 11,287.2 10,185.6 10,275.6 10,216.5 10,069.8 9,800.3 Less: goodwill and intangible assets (61.4) (61.5) (61.4) (61.9) (64.6) (66.4) (49.1) (51.1) (53.3) (56.0) (54.7) Tangible assets P $10,517.0 $10,617.2 $10,882.2 $11,041.6 $10,913.9 $11,220.8 $10,136.5 $10,224.5 $10,163.2 $10,013.8 $ 9,745.6 Tangible common equity to tangible assets O/P 7.0% 6.7% 6.2% 5.9% 6.6% 5.0% 5.5% 5.1 % 5.3% 5.0% 6.5% Tangible total equity to tangible assets N/P 7.0% 6.7% 6.2% 5.9% 8.2% 6.7% 7.3% 6.8 % 7.1% 6.8% 8.4% Efficiency ratio Non-interest expenses $ 73.6 $ 75.3 $ 71.0 $ 71.9 $ 77.3 $ 66.7 $ 69.9 $ 87.2 $ 67.4 $ 65.1 $ 65.5 Less: Amortization of intangibles (1.0) (1.1) (1.0) (1.0) (1.2) (1.3) (1.1) (1.1) (1.1) (1.1) (1.1) Non-interest expenses before amortization of intangibles Q 72.6 74.2 70.0 70.9 76.1 65.4 68.8 86.1 66.3 64.0 64.4 Non-interest income 38.2 38.7 38.5 38.8 36.3 37.9 34.5 37.3 34.2 34.5 34.1 Net interest income before provision for credit losses 74.3 71.5 67.9 66.8 65.0 64.3 62.3 61.2 60.0 59.3 58.8 Net revenue before provision for credit losses and other gains/losses R $ 112.5 $ 110.2 $ 106.4 $ 105.6 $ 101.3 $ 102.2 $ 96.8 $ 98.5 $ 94.2 $ 93.8 $ 92.9 Efficiency ratio Q/R 64.5% 67.4% 65.7% 67.1% 75.1% 64.0% 71.1% 87.4 % 70.4% 68.2% 69.3% Core efficiency ratio Non-interest expenses $ 73.6 $ 75.3 $ 71.0 $ 71.9 $ 77.3 $ 66.7 $ 69.9 $ 87.2 $ 67.4 $ 65.1 $ 65.5 Less: non-core expenses (E) (2.0) (1.4) (2.6) (1.6) (10.1) (2.3) (8.3) (23.3) (3.5) (1.5) (2.4) Less: amortization of intangibles (1.0) (1.1) (1.0) (1.0) (1.2) (1.3) (1.1) (1.1) (1.1) (1.1) (1.1) Core non-interest expenses before amortization of intangibles S 70.6 72.8 67.4 69.3 66.0 63.1 60.5 64.3 62.8 62.5 62.0 Net revenue before provision for credit losses and other gains/losses T 112.5 110.2 106.4 105.6 101.3 102.2 96.8 98.5 94.2 93.8 92.9 Core efficiency ratio S/T 62.8% 66.1% 63.2% 65.6% 65.3% 61.8% 62.5% 63.7 % 66.8% 66.7% 66.8%

21 Appendix Peer Group Our peer group includes the following banks, noted by their ticker symbols: • FRC • SIVB • EWBC • CFR • ASB • WTFC • CBSH • IBKC • UMBF • FHB • BOH • TRMK • IBOC • CBU • BPFH • FFIN • WABC