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 March, 2018

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 March 31, 2018.

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:  April 23, 2018	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 - First quarter 2018 results
99.2	Financial statements for the three months ended March 31, 2018
99.3	Earnings call presentation - First quarter 2018 results

3

EX-99.1

Butterfield Reports First Quarter 2018 Results

• Net income of $44.2 million, or $0.79 per share;

• Core net income¹ of $45.0 million, or $0.81 per share;

• Return on average common equity of 21.8%; core return on average tangible common equity¹ of 24.3%;

• Net interest margin of 3.05%;

• Return on average assets of 1.6%;

• Completed acquisition of Global Trust Solutions business from Deutsche Bank;

• Announced acquisition of Deutsche Bank's banking and custody business in the Cayman and Channel Islands;

• Board declared a dividend for the quarter ended March 31, 2018 of $0.38 per common share.

Hamilton, Bermuda - April 23, 2018: The Bank of N.T. Butterfield & Son Limited ("Butterfield" or "the Bank") (BSX: NTB.BH; NYSE: NTB) today announced financial results for the quarter ended March 31, 2018.

First quarter core net income¹ was $45.0 million, or $0.81 per diluted common share, compared to $42.2 million, or $0.76 per diluted common share for the fourth quarter of 2017 and $38.5 million, or $0.70 per diluted common share, for the first quarter of 2017.

The core return on average tangible common equity¹ for the first quarter of 2018 was 24.3%, up from 22.3% in the previous quarter and 23.4% in the first quarter of 2017.The return on average assets for the first quarter of 2018 was 1.6%, up from 1.5% in the previous quarter and 1.3% in the first quarter of 2017. The core efficiency ratio¹ for the first quarter of 2018 was 62.3% compared with 65.4% in the previous quarter and 62.5% in the first quarter of 2017.

“I am very encouraged by our strong results in the first quarter of 2018,” said Michael Collins, Butterfield's Chairman and Chief Executive Officer. “The Bank continues to deliver exceptional earnings as we benefit from our strategically positioned, asset sensitive balance sheet, high quality commercial and residential lending portfolio and capital efficient, diversified fee revenues. We are very pleased with the progress being made integrating the banking and trust acquisitions from Deutsche Bank and continue to seek out other acquisition opportunities in lines of business and geographies that meet our strategic requirements.”

Net interest income (“NII”) for the first quarter of 2018 was $81.8 million, an increase of $0.4 million compared with NII of $81.4 million in the fourth quarter of 2017 and an increase of $13.6 million compared with NII of $68.3 million in the first quarter of 2017. Increased NII in the first quarter of 2018 was due to active reinvestment of investable assets into a more favorable yield environment and higher yields in the adjustable-rate loan portfolio.

Net interest margin (“NIM”) for the first quarter of 2018 was 3.05%, up 18 basis points from the NIM of 2.87% in the previous quarter and up 47 basis points from the NIM of 2.58% in the first quarter of 2017.

(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 first quarter of 2018 included a release of provision for credit losses of $1.9 million compared with a release for credit losses of $5.4 million in the previous quarter and a provision for credit losses of $0.3 million in the first quarter of 2017.

Non-interest income was $39.8 million for the first quarter of 2018, compared with $42.4 million in the previous quarter and $38.5 million in the first quarter of 2017.

Non-interest expenses were $77.4 million in the first quarter of 2018, compared with $80.5 million in the previous quarter and $71.0 million in the first quarter of 2017. Non-interest expenses decreased relative to the previous quarter as a result of lower salaries and other employee benefits costs due to lower discretionary compensation costs. Compared to the first quarter of 2017, expenses were higher due to non-core professional and outside services expenses associated with the previously disclosed Deutsche Bank trust and banking acquisitions. In addition, the Bank incurred expenses from time spent in 2018 for the completion of testing of the implementation of Sarbanes-Oxley and compliance infrastructure build out.

Capital Management

The current total capital ratio as at March 31, 2018 was 19.2% as calculated under Basel III, which was effective for reporting purposes beginning on January 1, 2016. As of December 31, 2017, the Bank reported its total capital ratio under Basel III at 19.9%. 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 $0.38 per common share to be paid on May 15, 2018 to shareholders of record on May 4, 2018. As previously announced in February, the Board approved a common share repurchase authorization of up to one million shares in the next year. The authorization was effective as of April 1, 2018 and no shares have been purchased to-date.

2

ANALYSIS AND DISCUSSION OF FIRST QUARTER RESULTS

Income statement	Three months ended (Unaudited)
(in $ millions)	March 31, 2018		December 31, 2017		March 31, 2017
Non-interest income	39.8		42.4		38.5
Net interest income before provision for credit losses	79.9		76.1		67.9
Total net revenue before provision for credit losses and other gains (losses)	119.7		118.5		106.4
Provision for credit losses	1.9		5.4		0.3
Total other gains (losses)	0.4		(2.7	)	0.2
Total net revenue	122.0		121.1		107.0
Non-interest expenses	(77.4	)	(80.4	)	(71.0	)
Total net income before taxes	44.5		40.7		36.0
Income tax expense	(0.4	)	(0.5	)	(0.2	)
Net income	44.2		40.3		35.9
Net earnings per share
Basic	0.80		0.74		0.67
Diluted	0.79		0.72		0.65
Per diluted share impact of other non-core items 1	0.02		0.04		0.05
Core earnings per share on a fully diluted basis 1	0.81		0.76		0.70
Adjusted weighted average number of participating shares on a fully diluted basis(in thousands of shares)	55,813		55,584		55,221
Key financial ratios
Return on common equity	21.8	%	19.7	%	19.9	%
Core return on average tangible common equity 1	24.3	%	22.3	%	23.4	%
Return on average assets	1.6	%	1.5	%	1.3	%
Net interest margin	3.05	%	2.87	%	2.58	%
Core efficiency ratio 1	62.3	%	65.4	%	63.2	%

⁽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)	March 31, 2018		December 31, 2017
Cash due from banks	1,846		1,535
Securities purchased under agreement to resell	198		179
Short-term investments	100		250
Investments in securities	4,512		4,706
Loans, net of allowance for credit losses	3,957		3,777
Premises, equipment and computer software	163		165
Goodwill and intangibles	91		61
Other assets	122		107
Total assets	10,988		10,779
Total deposits	9,754		9,536
Other liabilities	293		303
Long-term debt	117		117
Total liabilities	10,164		9,956
Common shareholders’ equity	824		823
Total shareholders' equity	824		823
Total liabilities and shareholders' equity	10,988		10,779
Key Balance Sheet Ratios:	March 31, 2018		December 31, 2017
Common equity tier 1 capital ratio	17.6	%	18.2	%
Tier 1 capital ratio	17.6	%	18.2	%
Total capital ratio	19.2	%	19.9	%
Leverage ratio	6.8	%	6.9	%
Risk-Weighted Assets (in $ millions)	4,366.2		4,254.2
Risk-Weighted Assets / Total Assets	39.7	%	39.5	%
Tangible common equity ratio	6.7	%	7.1	%
Non-accrual loans/gross loans	1.1	%	1.2	%
Non-performing assets/total assets	0.5	%	0.4	%
Total coverage ratio	77.3	%	80.9	%
Specific coverage ratio	28.9	%	31.1	%

QUARTER ENDED MARCH 31, 2018 COMPARED WITH THE QUARTER ENDED DECEMBER 31, 2017

Net Income

Net income for the quarter ended March 31, 2018 was $44.2 million, up $3.9 million from $40.3 million in the prior quarter.

The $3.9 million increase in net income in the quarter ended March 31, 2018 over the fourth quarter of 2017 was due principally to the following:

• $3.8 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;

• $3.8 million decrease in salaries and other employee benefits due to lower discretionary pay;

• $3.0 million increase in other gains and losses due to valuation losses on foreclosed properties recorded in the previous quarter;

• $1.6 million decrease in non-service employee benefits expense due to certain settlement accounting which triggered higher expenses in the previous quarter;

• $2.6 million decrease in non-interest income, principally from banking fee income as a result of lower credit card volumes, and lower foreign exchange revenue from lower transaction volume;

• $1.7 million increase in professional and outside services, due principally to non-core costs associated with the two recently announced acquisitions;

• $3.4 million increase in provision for credit losses, due principally to a larger release in the prior quarter when compared to the current quarter; and

4

• $0.6 million increase in the remaining non-interest expense items, due to higher depreciation costs on certain IT assets and travel related expenditures.

Non-Core Items¹ 

Non-core items resulted in net losses and expenses of $0.8 million in the quarter ended March 31, 2018, a decrease of $1.1 million from net losses and expenses of $1.9 million in the prior quarter. Non-core items for the period comprised principally:

• $0.9 million in gains from the Avenir (SIV) pass-through note liquidation settlement;

• $1.6 million of professional and outside services expenses associated with the recently announced acquisition of Deutsche Bank's banking businesses in the Cayman Islands, Guernsey and Jersey and the closed acquisition of Deutsche Bank's Global Trust Solutions business; and

• $0.1 million of expenses associated with an internal review and account remediation program 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.

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

BALANCE SHEET COMMENTARY AT MARCH 31, 2018 COMPARED WITH DECEMBER 31, 2017

Total Assets

Total assets of the Bank were $11.0 billion at March 31, 2018, up $0.2 billion from December 31, 2017. The Bank maintained a highly liquid position at March 31, 2018, with $5.0 billion of cash and demand deposits with banks, reverse repurchase agreements and short and long-term investments, excluding held-to-maturity investments, representing 45.6% of total assets, compared with 49.1% at December 31, 2017.

Loans Receivable

The loan portfolio totaled $4.0 billion at March 31, 2018, an increase of $0.2 billion, due to new residential loan origination in the Channel Islands and the UK, as well new government and commercial lending in Bermuda.

Allowance for credit losses at March 31, 2018 totaled $32.8 million, a decrease of $2.7 million from year-end 2017. 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 36.0% of total assets at March 31, 2018 (December 31, 2017: 35.0%), whilst loans as a percentage of customer deposits increased from 39.7% at year-end 2017 to 40.6% at March 31, 2018, both of which are due to an increase in loans underwritten during the quarter.

As of March 31, 2018, the Bank had gross non-accrual loans of $42.4 million, representing 1.1% of total gross loans, a slight decrease from the $43.9 million, or 1.2%, of total loans at year-end 2017. Net non-accrual loans were $30.2 million, equivalent to 0.8% of net loans. We continue to engage proactively with our clients who experience financial difficulty.

Other real estate owned (“OREO”) decreased slightly by $0.3 million to $8.8 million for the first quarter ended March 31, 2018, primarily as a result of sales transactions completed in the quarter.

Investment in Securities

The investment portfolio was $4.5 billion at March 31, 2018, compared to $4.7 billion at December 31, 2017. The decreased portfolio size was driven principally by paydowns and maturities of assets to the available-for-sale portfolio, which decreased $0.5 billion, partially offset by a growth in the held-to-maturity portfolio through the purchase of US government and federal agency securities in the first quarter of 2018.

The investment portfolio was made up of high quality assets with 98.7% invested in A-or-better-rated securities. The investment yield increased slightly from the previous quarter to 2.5% as at March 31, 2018. Total net unrealized losses were $78.5 million, compared to $19.2 million at year-end 2017. The increase in unrealized losses is attributable largely to an increase in long-term treasury rates in the first three months of 2018.

5

Deposits

Average deposits were at $9.8 billion in the first quarter of 2018 compared to $9.7 billion in the fourth quarter of 2017. The cost of deposits was flat from the previous quarter at 12 basis points.

Average Balance Sheet² 

	For the three months ended
	March 31, 2018					December 31, 2017					March 31, 2017
(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	2,173.8	5.0		0.94		2,476.7	3.5		0.57		2,135.8	4.7		0.86
Investment in securities	4,574.6	28.6		2.54		4,556.4	24.4		2.17		4,638.0	26.6		2.27
Trading	1.0	—		—		0.7	—		—		1.3	—		—
Available-for-sale	3,121.5	17.3		2.25		3,358.7	15.9		1.92		3,326.1	17.1		2.04
Held-to-maturity	1,452.0	11.3		3.16		1,196.9	8.6		2.90		1,310.7	9.5		2.87
Loans	3,861.2	50.5		5.31		3,661.1	44.0		4.87		3,731.7	49.2		5.23
Commercial	1,221.5	16.6		5.52		1,361.5	15.1		4.49		1,140.9	15.0		5.20
Consumer	2,639.6	33.9		5.21		2,299.6	28.9		5.10		2,590.8	34.2		5.24
Interest earning assets	10,609.5	84.2		3.22		10,694.1	71.9		2.73		10,505.5	80.4		3.03
Other assets	325.4			—		352.7			—		325.4			—
Total assets	10,935.0	84.2		3.12		11,046.8	71.9		2.64		10,830.9	80.4		2.94
Liabilities
Deposits	7,411.3	(2.9	)	(0.16	)	7,656.2	(2.8	)	(0.15	)	7,222.4	(3.0	)	(0.16	)
Securities sold under agreement to repurchase	1.8	—		(1.96	)	—	—		—		—	—		—
Long-term debt	117.0	(1.3	)	(4.66	)	117.0	(1.2	)	(4.14	)	117.0	(1.3	)	(4.34	)
Interest bearing liabilities	7,530.1	(4.3	)	(0.23	)	7,773.2	(4.0	)	(0.21	)	7,339.4	(4.3	)	(0.23	)
Non-interest bearing current accounts	2,366.3			—		2,334.1			—		2,446.9			—
Other liabilities	256.3			—		257.0			—		253.8			—
Total liabilities	10,152.7	(4.3	)	(0.17	)	10,364.3	(4.0	)	(0.16	)	10,040.1	(4.3	)	(0.17	)
Shareholders’ equity	782.3			—		682.5			—		790.8			—
Total liabilities and shareholders’ equity	10,935.0			—		11,046.8			—		10,830.9			—
Non‑interest‑bearing funds net of    non‑interest earning assets (free balance)	3,079.5					2,920.9					3,166.1
Net interest margin		79.9		3.05			67.9		2.58			76.1		2.87

⁽²⁾ 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 $96.7 billion and $27.0 billion, respectively, whilst assets under management were $5.1 billion as at March 31, 2018. These figures exclude any assets under administration from the trust businesses acquired as a result of the acquisition of Deutsche Bank’s Global Trust Solutions business, excluding its US operations, which closed on March 29, 2018. This compares with $95.4 billion, $27.5 billion and $5.0 billion, respectively, at December 2017.

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 analyzing 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)	March 31, 2018		December 31, 2017		March 31, 2017
Net income	44.2		40.3		35.9
Dividends and guarantee fee of preference shares	—		—		—
Net income to common shareholders	44.2		40.3		35.9
Non-core items
Non-core (gains) losses
Gain on disposal of a pass-through note investment (formerly a SIV)	(0.9	)	—		(0.1	)
Adjustment to holdback payable for a previous business acquisition	—		—		0.1
Total non-core (gains) losses	(0.9	)	—		—
Non-core expenses
Early retirement program, redundancies and other non-core compensation costs	—		—		—
Tax compliance review costs	0.1		0.6		0.2
Business acquisition costs	1.6		1.0		—
Restructuring charges and related professional service fees	—		0.3		0.4
Secondary offering costs	—		—		2.6
Total non-core expenses	1.7		1.9		2.6
Total non-core items	0.8		1.9		2.6
Core net income	45.0		42.2		38.5
Core net income attributable to common shareholders	45.0		42.2		38.5
Average common equity	820.7		809.6		729.3
Less: average goodwill and intangible assets	(68.4	)	(60.9	)	(61.7	)
Average tangible common equity	752.3		748.7		667.6
Core earnings per share fully diluted 1	0.81		0.76		0.70
Return on common equity	21.8	%	19.7	%	19.9	%
Core return on average tangible common equity	24.3	%	22.3	%	23.4	%
Non-interest expenses	77.4		80.4		71.0
Less: non-core expenses	(1.7	)	(1.9	)	(2.6	)
Less: amortization of intangibles	(1.1	)	(1.1	)	(1.0	)
Core non-interest expenses before amortization of intangibles	74.6		77.4		67.4
Core revenue before other gains and losses and provision for credit losses	119.7		118.4		106.5
Core efficiency ratio	62.3	%	65.4	%	63.2	%

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Conference Call Information

Butterfield will host a conference call to discuss the Bank’s results on Tuesday, April 24, 2018 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 Bermuda, the Cayman Islands and Guernsey, where our principal banking operations are located, and The Bahamas, Switzerland, Singapore and the United Kingdom, where we offer specialized financial services. Banking services comprise deposit, cash management and lending solutions for individual, business and institutional clients. Wealth management services are composed of trust, private banking, and asset management. In Bermuda, the Cayman Islands and Guernsey, we offer both banking and wealth management. In The Bahamas, Singapore 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:

Noah FieldsMark Johnson

Investor Relations Group Head of Communications

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

Phone: (441) 299 3816Phone: (441) 299 1624

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

E-mail: noah.fields@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 March 31, 2018 and December 31, 2017	2
Consolidated Statements of Operations (unaudited) for the Three Months Ended March 31, 2018 and 2017	3
Consolidated Statements of Comprehensive Income (unaudited) for the Three Months Ended March 31, 2018 and 2017	4
Consolidated Statements of Changes in Shareholders’ Equity (unaudited) for the Three Months Ended March 31, 2018 and 2017	5
Consolidated Statements of Cash Flows (unaudited) for the Three Months Ended March 31, 2018 and 2017	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
	March 31, 2018		December 31, 2017
Assets
Cash and demand deposits with banks - Non-interest bearing	97,629		89,381
Demand deposits with banks - Interest bearing	467,895		340,256
Cash equivalents - Interest bearing	1,280,104		1,105,501
Cash due from banks	1,845,628		1,535,138
Securities purchased under agreement to resell	197,872		178,769
Short-term investments	100,175		249,984
Investment in securities
Trading	6,752		6,824
Available-for-sale	2,855,380		3,317,440
Held-to-maturity (fair value: $1,614,731 (2017: $1,377,354))	1,649,784		1,381,955
Total investment in securities	4,511,916		4,706,219
Loans
Loans	3,989,703		3,812,329
Allowance for credit losses	(32,797	)	(35,467	)
Loans, net of allowance for credit losses	3,956,906		3,776,862
Premises, equipment and computer software	162,719		164,790
Accrued interest	28,627		24,915
Goodwill	22,348		21,529
Intangible assets	68,516		39,066
Equity method investments	14,322		14,099
Other real estate owned	8,787		9,127
Other assets	70,419		58,739
Total assets	10,988,235		10,779,237
Liabilities
Customer deposits
Bermuda
Non-interest bearing	1,577,068		1,840,201
Interest bearing	3,662,057		3,412,623
Non-Bermuda
Non-interest bearing	662,147		639,525
Interest bearing	3,834,743		3,631,643
Total customer deposits	9,736,015		9,523,992
Bank deposits
Bermuda	7,087		442
Non-Bermuda	10,773		12,024
Total deposits	9,753,875		9,536,458
Employee benefit plans	128,684		128,798
Accrued interest	3,513		2,376
Pending payable for investments purchased	—		51,913
Other liabilities	160,936		119,811
Total other liabilities	293,133		302,898
Long-term debt	117,000		117,000
Total liabilities	10,164,008		9,956,356
Commitments, contingencies and guarantees (Note 12)
Shareholders' equity
Common share capital (BMD 0.01 par; authorized voting ordinary shares 2,000,000,000 and non-voting ordinary shares 6,000,000,000) issued and outstanding: 55,146,840 (2017: 54,692,630)	551		547
Additional paid-in capital	1,160,441		1,155,542
Accumulated deficit	(180,900	)	(204,156	)
Accumulated other comprehensive loss	(155,865	)	(129,052	)
Total shareholders’ equity	824,227		822,881
Total liabilities and shareholders’ equity	10,988,235		10,779,237

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
	March 31, 2018		March 31, 2017
Non-interest income
Asset management	6,379		5,840
Banking	10,860		10,043
Foreign exchange revenue	8,194		8,306
Trust	10,854		11,390
Custody and other administration services	2,225		2,012
Other non-interest income	1,249		947
Total non-interest income	39,761		38,538
Interest income
Interest and fees on loans	50,550		44,007
Investments (none of the investment securities are intrinsically tax-exempt)
Available-for-sale	17,318		15,874
Held-to-maturity	11,310		8,559
Deposits with banks	5,013		3,479
Total interest income	84,191		71,919
Interest expense
Deposits	2,942		2,793
Long-term debt	1,345		1,193
Securities sold under repurchase agreements	9		—
Total interest expense	4,296		3,986
Net interest income before provision for credit losses	79,895		67,933
Provision for credit losses	1,942		339
Net interest income after provision for credit losses	81,837		68,272
Net trading gains (losses)	(71	)	157
Net realized gains (losses) on available-for-sale investments	850		69
Net gains (losses) on other real estate owned	(339	)	68
Net other gains (losses)	(87	)	(71	)
Total other gains (losses)	353		223
Total net revenue	121,951		107,033
Non-interest expense
Salaries and other employee benefits	35,650		34,259
Technology and communications	14,745		12,949
Professional and outside services	9,684		6,244
Property	5,125		4,922
Indirect taxes	4,948		4,196
Non-service employee benefits expense	1,313		1,736
Marketing	942		963
Amortization of intangible assets	1,071		1,030
Restructuring costs	—		441
Other expenses	3,924		4,261
Total non-interest expense	77,402		71,001
Net income before income taxes	44,549		36,032
Income tax expense	(352	)	(175	)
Net income	44,197		35,857
Earnings per common share
Basic earnings per share	0.80		0.67
Diluted earnings per share	0.79		0.65
Dividend per share	0.38		0.32

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
	March 31, 2018		March 31, 2017
Net income	44,197		35,857
Other comprehensive income (loss), net of taxes
Net change in unrealized gains and losses on translation of net investment in foreign operations	1,184		358
Accretion of net unrealized (gains) losses on held-to-maturity investments transferred from available-for-sale investments	22		48
Net change in unrealized gains and losses on available-for-sale investments	(28,721	)	4,851
Employee benefit plans adjustments	702		1,018
Other comprehensive income (loss), net of taxes	(26,813	)	6,275
Total comprehensive income	17,384		42,132

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)

	Three months ended
	March 31, 2018			March 31, 2017
	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	54,692,630	547		53,284,872		533
Issuance of common shares	454,210	4		970,505		10
Balance at end of period	55,146,840	551		54,255,377		543
Additional paid-in capital
Balance at beginning of period		1,155,542				1,142,608
Share-based compensation		2,537				1,741
Share-based settlements		648				(10	)
Cost of issuance of common shares		—				22
Issuance of common shares, net of underwriting discounts and commissions		1,714				3,621
Sale of treasury common shares		—				(1	)
Balance at end of period		1,160,441				1,147,981
Accumulated deficit
Balance at beginning of period		(204,156	)			(287,677	)
Net income for period		44,197				35,857
Common share cash dividends declared and paid, $0.38 per share (2017: $0.32 per share)		(20,941	)			(17,297	)
Balance at end of period		(180,900	)			(269,117	)
Treasury common shares
Balance at beginning of period	—	—		2,066		(42	)
Sale of treasury common shares	—	—		(380	)	13
Share-based settlements	—	—		(1,628	)	28
Balance at end of period	—	—		58		(1	)
Accumulated other comprehensive income (loss)
Balance at beginning of period		(129,052	)			(144,680	)
Other comprehensive income (loss), net of taxes		(26,813	)			6,275
Balance at end of period		(155,865	)			(138,405	)
Total shareholders' equity		824,227				741,001

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)

	Three months ended
	March 31, 2018		March 31, 2017
Cash flows from operating activities
Net income	44,197		35,857
Adjustments to reconcile net income to operating cash flows
Depreciation and amortization	12,224		12,803
Provision for credit (recovery) losses	(1,942	)	(339	)
Share-based payments and settlements	3,185		1,759
Net realized (gains) losses on available-for-sale investments	(850	)	(69	)
Net (gains) losses on other real estate owned	339		(68	)
(Increase) in carrying value of equity method investments	(271	)	(347	)
Dividends received from equity method investments	47		40
Changes in operating assets and liabilities
(Increase) decrease in accrued interest receivable	(3,598	)	94
(Increase) decrease in other assets	(11,344	)	11,085
Increase (decrease) in accrued interest payable	1,118		873
Increase (decrease) in employee benefit plans and other liabilities	46,940		(7,205	)
Cash provided by operating activities	90,045		54,483
Cash flows from investing activities
(Increase) decrease in securities purchased under agreement to resell	(19,103	)	86,144
Net (increase) decrease in short-term investments other than restricted cash	141,063		(19,434	)
Net change in trading investments	71		(157	)
Available-for-sale investments: proceeds from sale	321,381		86
Available-for-sale investments: proceeds from maturities and pay downs	157,535		124,944
Available-for-sale investments: purchases	(48,551	)	(98,804	)
Held-to-maturity investments: proceeds from maturities and pay downs	30,172		23,648
Held-to-maturity investments: purchases	(350,984	)	(199,248	)
Net (increase) decrease in loans	(144,566	)	9,070
Additions to premises, equipment and computer software	(3,772	)	(3,888	)
Proceeds from sale of other real estate owned	—		179
Cash disbursed for business acquisitions	(30,168	)	—
Cash provided by (used in) investing activities	53,078		(77,460	)
Cash flows from financing activities
Net increase (decrease) in demand and term deposit liabilities	159,839		(205,239	)
Proceeds from issuance of common shares, net of underwriting discounts and commissions	—		13
Proceeds from stock option exercises	1,719		3,631
Cash dividends paid on common shares	(20,941	)	(17,297	)
Cash provided by (used in) financing activities	140,617		(218,892	)
Net effect of exchange rates on cash, cash equivalent and restricted cash	15,810		10,201
Net (decrease) increase in cash, cash equivalent and restricted cash	299,550		(231,668	)
Cash, cash equivalent and restricted cash: beginning of period	1,557,733		2,119,545
Cash, cash equivalent and restricted cash: end of period	1,857,283		1,887,877
Components of cash, cash equivalent and restricted cash at end of period
Cash due from banks	1,845,628		1,867,309
Restricted cash included in short-term investments on the consolidated balance sheets	11,655		20,568
Total cash, cash equivalent and restricted cash at end of period	1,857,283		1,887,877

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 license 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 three geographic segments: Bermuda, the Cayman Islands, and the Channel Islands and the United Kingdom (UK), where its principal banking operations are located and 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 Channel Islands and the UK segment, the Bank offers wealth management and residential property lending.

On September 16, 2016, the Bank's common shares began to trade on the New York Stock Exchange under the symbol "NTB". On September 21, 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 December 31, 2017.

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 January 1, 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 issued during the three months ended March 31, 2018 or are accounting standards pending adoption:

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 December 15, 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 December 15, 2019, including interim periods within those fiscal years. The Bank is assessing the impact of the adoption of this guidance.

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)

Note3: Cash due from banks

	March 31, 2018			December 31, 2017
	Bermuda	Non-Bermuda	Total	Bermuda	Non-Bermuda	Total
Non-interest bearing
Cash and demand deposits with banks	25,802	71,827	97,629	24,189	65,192	89,381
Interest bearing¹
Demand deposits with banks	304,103	163,792	467,895	215,363	124,893	340,256
Cash equivalents	274,118	1,005,986	1,280,104	330,247	775,254	1,105,501
Sub-total - Interest bearing	578,221	1,169,778	1,747,999	545,610	900,147	1,445,757
Total cash due from banks	604,023	1,241,605	1,845,628	569,799	965,339	1,535,138

¹ Interest bearing cash due from banks includes certain demand deposits with banks as at March 31, 2018 in the amount of $212.4 million (December 31, 2017: $203.3 million) that are earning interest at a negligible rate.

Note 4: Short-term investments

	March 31, 2018			December 31, 2017
	Bermuda	Non-Bermuda	Total	Bermuda	Non-Bermuda	Total
Unrestricted
Maturing within three months	19,376	67,739	87,115	67,528	71,986	139,514
Maturing between three to six months	—	—	—	19,841	67,035	86,876
Maturing between six to twelve months	—	405	405	—	—	—
Total unrestricted short-term investments	19,376	68,144	87,520	87,369	139,021	226,390
Affected by drawing restrictions related to minimum reserve and derivative margin requirements
Non-interest earning demand deposits	—	4,902	4,902	—	—	—
Interest earning demand and term deposits	6,753	1,000	7,753	22,053	1,541	23,594
Total restricted short-term investments	6,753	5,902	12,655	22,053	1,541	23,594
Total short-term investments	26,129	74,046	100,175	109,422	140,562	249,984

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)

Note 5: Investment in securities

Amortized 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 amortized cost.

	March 31, 2018					December 31, 2017
	Amortized cost	Gross unrealized gains	Gross unrealized losses		Fair value	Amortized cost	Gross unrealized gains	Gross unrealized losses		Fair value
Trading
Mutual funds	5,724	1,530	(502	)	6,752	5,724	1,616	(516	)	6,824
Total trading	5,724	1,530	(502	)	6,752	5,724	1,616	(516	)	6,824
Available-for-sale
US government and federal agencies	2,357,351	6,195	(40,059	)	2,323,487	2,720,581	8,924	(20,401	)	2,709,104
Non-US governments debt securities	26,504	55	(389	)	26,170	26,516	118	(386	)	26,248
Corporate debt securities	180,047	—	(1,951	)	178,096	243,999	153	(780	)	243,372
Asset-backed securities - Student loans	13,290	—	(664	)	12,626	13,290	—	(797	)	12,493
Commercial mortgage-backed securities	142,435	8	(3,423	)	139,020	142,740	56	(1,296	)	141,500
Residential mortgage-backed securities	180,209	—	(4,228	)	175,981	186,049	309	(1,635	)	184,723
Total available-for-sale	2,899,836	6,258	(50,714	)	2,855,380	3,333,175	9,560	(25,295	)	3,317,440
Held-to-maturity¹
US government and federal agencies	1,649,784	1,808	(36,861	)	1,614,731	1,381,955	4,813	(9,414	)	1,377,354
Total held-to-maturity	1,649,784	1,808	(36,861	)	1,614,731	1,381,955	4,813	(9,414	)	1,377,354

¹ For the three months ended March 31, 2018 and the year ended December 31, 2017, non-credit impairments recognized in accumulated other comprehensive loss ("AOCL") for HTM investments were nil.

Investments with Unrealized Loss Positions

The Bank does not believe that the AFS and HTM investment securities that were in an unrealized loss position as of March 31, 2018 (and December 31, 2017), which were comprised of 196 securities representing 77% of the AFS and HTM portfolios' fair value (December 31, 2017: 161 and 59%, respectively), represent an other-than-temporary impairment ("OTTI"). Total gross unrealized losses were 2.5% of the fair value of affected securities (December 31, 2017: 1.3%) 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 unrealized losses as shown in the preceding tables.

Management believes that all the US government and federal agenciessecurities 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 do not have any credit losses, given the explicit guarantee provided by the issuing government.

The unrealized losses in Corporate debt securities relate primarily to 10 debt securities that are all of investment grade with ratings ranging from BBB+ to A+. Management believes that the value of these securities will recover and the current unrealized loss positions are a result of interest rate movements.

Investments in Asset-backed securities - Student loans are composed primarily of securities collateralized 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-collateralization, 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 10 senior securities rated AAA 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 recognized as for eight of these securities the weighted average credit support and the weighted average loan-to-value ratios ("LTV") range from 25% - 38% and 48% - 62%, respectively. The two remaining securities do not have explicit credit support, however these securities have LTVs of less than 30%.

Investments in Residential mortgage-backed securities relate to 17 securities which are rated AAA or AA+ and possess similar significant credit enhancement as described above. No credit losses were recognized on these securities as the weighted average credit support and the weighted average LTV ratios range from 5% - 19% and 54% - 66%, respectively. Current credit support is significantly greater than any delinquencies experienced on the underlying mortgages.

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)

In the following tables, debt securities with unrealized losses that are not deemed to be OTTI are categorized 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 amortized cost basis.

	Less than 12 months			12 months or more
March 31, 2018	Fair value	Gross unrealized losses		Fair value	Gross unrealized losses		Total  fair value	Total gross unrealized losses
Available-for-sale securities with unrealized losses
US government and federal agencies	682,912	(10,825	)	856,682	(29,234	)	1,539,594	(40,059	)
Non-US governments debt securities	—	—		22,360	(389	)	22,360	(389	)
Corporate debt securities	139,354	(725	)	38,743	(1,226	)	178,097	(1,951	)
Asset-backed securities - Student loans	—	—		12,626	(664	)	12,626	(664	)
Commercial mortgage-backed securities	101,837	(2,622	)	36,342	(801	)	138,179	(3,423	)
Residential mortgage-backed securities	122,130	(2,411	)	53,851	(1,817	)	175,981	(4,228	)
Total available-for-sale securities with unrealized losses	1,046,233	(16,583	)	1,020,604	(34,131	)	2,066,837	(50,714	)
Held-to-maturity securities with unrealized losses
US government and federal agencies	1,099,656	(24,915	)	276,779	(11,946	)	1,376,435	(36,861	)
	Less than 12 months			12 months or more
December 31, 2017	Fair value	Gross unrealized losses		Fair value	Gross unrealized losses		Total fair value	Total gross unrealized losses
Available-for-sale securities with unrealized losses
US government and federal agencies	497,307	(2,461	)	1,014,252	(17,940	)	1,511,559	(20,401	)
Non-US governments debt securities	—	—		22,360	(386	)	22,360	(386	)
Corporate debt securities	86,501	(225	)	39,479	(555	)	125,980	(780	)
Asset-backed securities - Student loans	—	—		12,493	(797	)	12,493	(797	)
Commercial mortgage-backed securities	98,822	(709	)	36,766	(587	)	135,588	(1,296	)
Residential mortgage-backed securities	71,604	(486	)	56,287	(1,149	)	127,891	(1,635	)
Total available-for-sale securities with unrealized losses	754,234	(3,881	)	1,181,637	(21,414	)	1,935,871	(25,295	)
Held-to-maturity securities with unrealized losses
US government and federal agencies	549,532	(2,862	)	288,830	(6,552	)	838,362	(9,414	)

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)

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.

	Remaining term to maturity
March 31, 2018	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	—	—	—	—	6,752	6,752
Available-for-sale
US government and federal agencies	—	—	34,325	—	2,289,162	2,323,487
Non-US governments debt securities	667	—	3,143	22,360	—	26,170
Corporate debt securities	59,386	14,944	103,766	—	—	178,096
Asset-backed securities - Student loans	—	—	—	—	12,626	12,626
Commercial mortgage-backed securities	—	—	—	—	139,020	139,020
Residential mortgage-backed securities	—	—	—	—	175,981	175,981
Total available-for-sale	60,053	14,944	141,234	22,360	2,616,789	2,855,380
Held-to-maturity
US government and federal agencies	—	—	—	—	1,649,784	1,649,784
Total investments	60,053	14,944	141,234	22,360	4,273,325	4,511,916
Total by currency
US dollars	60,053	14,944	141,234	22,360	4,273,103	4,511,694
Other	—	—	—	—	222	222
Total investments	60,053	14,944	141,234	22,360	4,273,325	4,511,916

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.

	March 31, 2018		December 31, 2017
Pledged Investments	Amortized cost	Fair  value	Amortized cost	Fair  value
Available-for-sale	133,939	132,871	149,999	150,900
Held-to-maturity	227,184	221,165	202,303	201,523

Sale Proceeds and Realized Gains and Losses of AFS Securities	Three months ended
	March 31, 2018
	Sale proceeds	Gross realized gains	Gross realized (losses)
US government and federal agencies	320,471	766	(826	)
Pass-through note	910	910	—
Total	321,381	1,676	(826	)

	Three months ended
	March 31, 2017
	Sale proceeds	Gross realized gains	Gross realized (losses)
Pass-through note	86	69	—
Total	86	69	—

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.

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)

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 March 31, 2018 is 5.22% (December 31, 2017: 5.09%).

	March 31, 2018						December 31, 2017
	Bermuda		Non-Bermuda		Total		Bermuda		Non-Bermuda		Total
Commercial loans
Government	175,528		13,414		188,942		139,987		13,414		153,401
Commercial and industrial	226,486		226,603		453,089		197,251		173,701		370,952
Commercial overdrafts	22,779		4,971		27,750		18,649		2,874		21,523
Total gross commercial loans	424,793		244,988		669,781		355,887		189,989		545,876
Less specific allowance for credit losses	(2,837	)	—		(2,837	)	(2,866	)	—		(2,866	)
Net commercial loans	421,956		244,988		666,944		353,021		189,989		543,010
Commercial real estate loans
Commercial mortgage	345,250		186,915		532,165		346,094		189,741		535,835
Construction	26,095		29,037		55,132		24,500		23,743		48,243
Total gross commercial real estate loans	371,345		215,952		587,297		370,594		213,484		584,078
Less specific allowance for credit losses	(600	)	—		(600	)	(550	)	(33	)	(583	)
Net commercial real estate loans	370,745		215,952		586,697		370,044		213,451		583,495
Consumer loans
Automobile financing	12,947		6,572		19,519		13,113		6,182		19,295
Credit card	58,967		20,440		79,407		57,777		21,228		79,005
Overdrafts	3,165		2,252		5,417		5,490		2,871		8,361
Other consumer	29,638		53,967		83,605		29,818		51,196		81,014
Total gross consumer loans	104,717		83,231		187,948		106,198		81,477		187,675
Less specific allowance for credit losses	(274	)	—		(274	)	(274	)	—		(274	)
Net consumer loans	104,443		83,231		187,674		105,924		81,477		187,401
Residential mortgage loans	1,145,446		1,399,231		2,544,677		1,156,134		1,338,566		2,494,700
Less specific allowance for credit losses	(7,747	)	(813	)	(8,560	)	(8,681	)	(1,220	)	(9,901	)
Net residential mortgage loans	1,137,699		1,398,418		2,536,117		1,147,453		1,337,346		2,484,799
Total gross loans	2,046,301		1,943,402		3,989,703		1,988,813		1,823,516		3,812,329
Less specific allowance for credit losses	(11,458	)	(813	)	(12,271	)	(12,371	)	(1,253	)	(13,624	)
Less general allowance for credit losses	(14,976	)	(5,550	)	(20,526	)	(16,339	)	(5,504	)	(21,843	)
Net loans	2,019,867		1,937,039		3,956,906		1,960,103		1,816,759		3,776,862

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)

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

The following tables summarize the past due status of the loans as at March 31, 2018 and December 31, 2017. 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.

March 31, 2018	30 - 59 days	60 - 89 days	More than 90 days	Total past  due loans	Total current	Total loans
Commercial loans
Government	—	—	—	—	188,942	188,942
Commercial and industrial	993	—	7,456	8,449	444,640	453,089
Commercial overdrafts	—	—	1	1	27,749	27,750
Total commercial loans	993	—	7,457	8,450	661,331	669,781
Commercial real estate loans
Commercial mortgage	—	—	4,413	4,413	527,752	532,165
Construction	—	—	—	—	55,132	55,132
Total commercial real estate loans	—	—	4,413	4,413	582,884	587,297
Consumer loans
Automobile financing	48	2	231	281	19,238	19,519
Credit card	315	148	223	686	78,721	79,407
Overdrafts	—	—	3	3	5,414	5,417
Other consumer	479	422	599	1,500	82,105	83,605
Total consumer loans	842	572	1,056	2,470	185,478	187,948
Residential mortgage loans	21,161	11,773	41,773	74,707	2,469,970	2,544,677
Total gross loans	22,996	12,345	54,699	90,040	3,899,663	3,989,703
December 31, 2017	30 - 59 days	60 - 89 days	More than 90 days	Total past  due loans	Total current	Total loans
Commercial loans
Government	—	—	—	—	153,401	153,401
Commercial and industrial	—	1,005	7,481	8,486	362,466	370,952
Commercial overdrafts	—	—	1	1	21,522	21,523
Total commercial loans	—	1,005	7,482	8,487	537,389	545,876
Commercial real estate loans
Commercial mortgage	392	—	4,781	5,173	530,662	535,835
Construction	—	—	—	—	48,243	48,243
Total commercial real estate loans	392	—	4,781	5,173	578,905	584,078
Consumer loans
Automobile financing	7	12	226	245	19,050	19,295
Credit card	422	177	170	769	78,236	79,005
Overdrafts	—	—	4	4	8,357	8,361
Other consumer	797	329	441	1,567	79,447	81,014
Total consumer loans	1,226	518	841	2,585	185,090	187,675
Residential mortgage loans	19,121	10,142	35,658	64,921	2,429,779	2,494,700
Total gross loans	20,739	11,665	48,762	81,166	3,731,163	3,812,329

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.

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)

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.

March 31, 2018	Pass	Special  mention	Substandard	Non-accrual	Total gross  recorded  investments
Commercial loans
Government	185,192	—	3,750	—	188,942
Commercial and industrial	439,750	4,634	1,249	7,456	453,089
Commercial overdrafts	25,197	2,132	420	1	27,750
Total commercial loans	650,139	6,766	5,419	7,457	669,781
Commercial real estate loans
Commercial mortgage	468,425	55,747	3,580	4,413	532,165
Construction	55,132	—	—	—	55,132
Total commercial real estate loans	523,557	55,747	3,580	4,413	587,297
Consumer loans
Automobile financing	19,056	212	20	231	19,519
Credit card	79,184	—	223	—	79,407
Overdrafts	5,288	126	—	3	5,417
Other consumer	81,496	1,441	29	639	83,605
Total consumer loans	185,024	1,779	272	873	187,948
Residential mortgage loans	2,394,125	34,608	86,264	29,680	2,544,677
Total gross recorded loans	3,752,845	98,900	95,535	42,423	3,989,703
December 31, 2017	Pass	Special  mention	Substandard	Non-accrual	Total gross  recorded  investments
Commercial loans
Government	149,651	—	3,750	—	153,401
Commercial and industrial	357,298	4,864	1,309	7,481	370,952
Commercial overdrafts	17,558	3,569	395	1	21,523
Total commercial loans	524,507	8,433	5,454	7,482	545,876
Commercial real estate loans
Commercial mortgage	464,283	63,663	3,108	4,781	535,835
Construction	48,243	—	—	—	48,243
Total commercial real estate loans	512,526	63,663	3,108	4,781	584,078
Consumer loans
Automobile financing	18,816	232	21	226	19,295
Credit card	78,835	—	170	—	79,005
Overdrafts	8,263	94	—	4	8,361
Other consumer	79,080	1,419	31	484	81,014
Total consumer loans	184,994	1,745	222	714	187,675
Residential mortgage loans	2,351,845	35,996	75,985	30,874	2,494,700
Total gross recorded loans	3,573,872	109,837	84,769	43,851	3,812,329

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)

Evaluation of Loans For Impairment	March 31, 2018		December 31, 2017
	Individually  evaluated	Collectively  evaluated	Individually  evaluated	Collectively  evaluated
Commercial	8,450	661,331	8,487	537,389
Commercial real estate	7,993	579,304	7,889	576,189
Consumer	1,293	186,655	1,138	186,537
Residential mortgage	100,600	2,444,077	99,652	2,395,048
Total gross loans	118,336	3,871,367	117,166	3,695,163

Changes in General and Specific Allowances For Credit Losses

	Three months ended March 31, 2018
	Commercial	Commercial  real estate		Consumer		Residential  mortgage		Total
Allowances at beginning of period	6,309	10,360		888		17,910		35,467
Provision taken (released)	488	(1,186	)	43		(1,287	)	(1,942	)
Recoveries	2	1		125		35		163
Charge-offs	—	—		(170	)	(768	)	(938	)
Other	2	7		1		37		47
Allowances at end of period	6,801	9,182		887		15,927		32,797
Allowances at end of period: individually evaluated for impairment	2,837	600		274		8,560		12,271
Allowances at end of period: collectively evaluated for impairment	3,964	8,582		613		7,367		20,526

	Three months ended March 31, 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)	657	(831	)	481		(646	)	(339	)
Recoveries	1	—		271		154		426
Charge-offs	—	—		(691	)	(509	)	(1,200	)
Other	2	7		—		13		22
Allowances at end of period	4,037	15,400		1,026		22,693		43,156
Allowances at end of period: individually evaluated for impairment	577	750		278		9,546		11,151
Allowances at end of period: collectively evaluated for impairment	3,460	14,650		748		13,147		32,005

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)

Non-Performing Loans (excluding purchased credit-impaired loans)	March 31, 2018			December 31, 2017
	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	7,456	—	7,456	7,481	—	7,481
Commercial overdrafts	1	—	1	1	—	1
Total commercial loans	7,457	—	7,457	7,482	—	7,482
Commercial real estate loans
Commercial mortgage	4,413	—	4,413	4,781	—	4,781
Consumer loans
Automobile financing	231	—	231	226	—	226
Credit card	—	223	223	—	170	170
Overdrafts	3	—	3	4	—	4
Other consumer	639	—	639	484	—	484
Total consumer loans	873	223	1,096	714	170	884
Residential mortgage loans	29,680	12,341	42,021	30,874	4,186	35,060
Total non-performing loans	42,423	12,564	54,987	43,851	4,356	48,207

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 three months ended March 31, 2018, the amount of gross interest income that would have been recorded had impaired loans been current was $0.6 million (March 31, 2017: $0.7 million).

	Impaired loans with an allowance				Gross  recorded  investment of  impaired loans  without an  allowance	Total impaired loans
March 31, 2018	Gross  recorded  investment	Specific  allowance		Net loans		Gross  recorded  investment	Specific  allowance		Net loans
Commercial loans
Commercial and industrial	7,456	(2,837	)	4,619	993	8,449	(2,837	)	5,612
Commercial overdrafts	—	—		—	1	1	—		1
Total commercial loans	7,456	(2,837	)	4,619	994	8,450	(2,837	)	5,613
Commercial real estate loans
Commercial mortgage	1,128	(600	)	528	6,865	7,993	(600	)	7,393
Consumer loans
Automobile financing	138	(75	)	63	93	231	(75	)	156
Overdrafts	—	—		—	3	3	—		3
Other consumer	199	(199	)	—	440	639	(199	)	440
Total consumer loans	337	(274	)	63	536	873	(274	)	599
Residential mortgage loans	50,543	(8,236	)	42,307	46,167	96,710	(8,236	)	88,474
Total impaired loans	59,464	(11,947	)	47,517	54,562	114,026	(11,947	)	102,079

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

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)

	Impaired loans with an allowance				Gross  recorded  investment of  impaired loans  without an  allowance	Total impaired loans
December 31, 2017	Gross  recorded  investment	Specific  allowance		Net loans		Gross  recorded  investment	Specific  allowance		Net loans
Commercial loans
Commercial and industrial	7,475	(2,866	)	4,609	1,011	8,486	(2,866	)	5,620
Commercial overdrafts	—	—		—	1	1	—		1
Total commercial loans	7,475	(2,866	)	4,609	1,012	8,487	(2,866	)	5,621
Commercial real estate loans
Commercial mortgage	1,585	(583	)	1,002	6,304	7,889	(583	)	7,306
Consumer loans
Automobile financing	138	(75	)	63	88	226	(75	)	151
Overdrafts	—	—		—	4	4	—		4
Other consumer	199	(199	)	—	285	484	(199	)	285
Total consumer loans	337	(274	)	63	377	714	(274	)	440
Residential mortgage loans	53,698	(9,630	)	44,068	42,055	95,753	(9,630	)	86,123
Total impaired loans	63,095	(13,353	)	49,742	49,748	112,843	(13,353	)	99,490

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

Average Impaired Loan Balances and Related Recognized Interest Income

	March 31, 2018		December 31, 2017
	Average gross  recorded  investment	Interest income recognized¹	Average gross  recorded  investment	Interest income recognized¹
Commercial loans
Commercial and industrial	8,468	16	5,057	63
Commercial overdrafts	1	—	2	—
Total commercial loans	8,469	16	5,059	63
Commercial real estate loans
Commercial mortgage	7,941	81	7,778	222
Consumer loans
Automobile financing	229	—	256	—
Overdrafts	4	—	11	—
Other consumer	562	—	598	—
Total consumer loans	795	—	865	—
Residential mortgage loans	96,232	1,046	89,063	4,378
Total impaired loans	113,437	1,143	102,765	4,663

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

Loans Modified in a TDR

As at March 31, 2018, the Bank had no 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 December 31, 2017, the Bank had no loans that were modified in a TDR during the preceding 12 months that subsequently defaulted.

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)

TDRs entered into during the period

	Three months ended March 31, 2018
	Number of  contracts	Pre- modification  recorded investment	Modification: interest capitalization	Post- modification   recorded  investment
Residential mortgage loans	5	2,733	97	2,830
Total loans modified in a TDR	5	2,733	97	2,830

	Three months ended March 31, 2017
	Number of contracts	Pre- modification recorded investment	Modification: interest capitalization	Post- modification recorded investment
Residential mortgage loans	6	3,341	301	3,642
Total loans modified in a TDR	6	3,341	301	3,642

	March 31, 2018		December 31, 2017
TDRs outstanding	Accrual	Non-accrual	Accrual	Non-accrual
Commercial loans	993	—	1,005	—
Commercial real estate loans	3,580	1,033	3,108	1,471
Residential mortgage loans	67,030	5,403	64,879	5,623
Total TDRs outstanding	71,603	6,436	68,992	7,094

Purchased Credit-Impaired Loans

The Bank acquired certain credit-impaired loans as part of the November 7, 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.

	Three months ended March 31, 2018
	Contractual  principal		Non-accretable difference		Accretable  difference		Carrying  amount
Balance at beginning of period	6,001		(1,239	)	(711	)	4,051
Advances and increases in cash flows expected to be collected	21		2		(2	)	21
Reductions resulting from repayments	(34	)	1		—		(33	)
Reductions resulting from changes in allowances for credit losses	—		(53	)	—		(53	)
Balance at end of period	5,988		(1,289	)	(713	)	3,986

	Year ended December 31, 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	36		48		(48	)	36
Reductions resulting from repayments	(1,581	)	307		148		(1,126	)
Reductions resulting from changes in allowances for credit losses	—		(99	)	—		(99	)
Reductions resulting from charge-offs	(470	)	122		—		(348	)
Balance at end of period	6,001		(1,239	)	(711	)	4,051

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)

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 summarize 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.

	March 31, 2018					December 31, 2017
Business sector	Loans		Off-balance  sheet	Total credit  exposure		Loans		Off-balance  sheet	Total credit  exposure
Banks and financial services	510,972		323,126	834,098		459,132		390,278	849,410
Commercial and merchandising	309,036		193,511	502,547		261,560		193,583	455,143
Governments	189,581		50,000	239,581		153,952		85,807	239,759
Individuals	2,306,199		105,102	2,411,301		2,274,632		114,215	2,388,847
Primary industry and manufacturing	66,362		2,123	68,485		59,532		9,567	69,099
Real estate	443,581		1,792	445,373		439,595		2,225	441,820
Hospitality industry	146,310		3,931	150,241		144,808		73	144,881
Transport and communication	5,391		—	5,391		5,494		—	5,494
Sub-total	3,977,432		679,585	4,657,017		3,798,705		795,748	4,594,453
General allowance	(20,526	)	—	(20,526	)	(21,843	)	—	(21,843	)
Total	3,956,906		679,585	4,636,491		3,776,862		795,748	4,572,610

	March 31, 2018						December 31, 2017
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	115,110	—		—	115,110		113,920	—		—	113,920
Bermuda	26,075	2,191,469		391,493	2,609,037		14,512	2,132,918		418,850	2,566,280
Canada	271,931	—		—	271,931		386,322	—		—	386,322
Cayman	85,363	681,897		141,879	909,139		67,942	669,767		229,731	967,440
Guernsey	764	336,921		17,360	355,045		3	292,806		41,648	334,457
Japan	26,927	—		—	26,927		12,852	—		—	12,852
New Zealand	7,041	—		—	7,041		7,951	—		—	7,951
Norway	100,316	—		—	100,316		25,440	—		—	25,440
Saint Lucia	—	119,925		—	119,925		—	120,000		—	120,000
Switzerland	6,014	—		—	6,014		5,743	—		—	5,743
The Bahamas	1,599	16,673		—	18,272		1,652	17,451		—	19,103
United Kingdom	713,116	626,797		128,853	1,468,766		775,853	562,013		105,519	1,443,385
United States	785,411	—		—	785,411		544,703	—		—	544,703
Other	4,008	3,750		—	7,758		6,998	3,750		—	10,748
Sub-total	2,143,675	3,977,432		679,585	6,800,692		1,963,891	3,798,705		795,748	6,558,344
General allowance	—	(20,526	)	—	(20,526	)	—	(21,843	)	—	(21,843	)
Total	2,143,675	3,956,906		679,585	6,780,166		1,963,891	3,776,862		795,748	6,536,501

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 8: Customer deposits and deposits from banks

By Maturity
	Demand			Term
March 31, 2018	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	1,577,068	2,818,083	4,395,151	9,967	4,904	10,706	14,764	40,341	4,435,492
Term - $100k or more	N/A	N/A	—	648,357	43,538	74,500	37,238	803,633	803,633
Total Bermuda	1,577,068	2,818,083	4,395,151	658,324	48,442	85,206	52,002	843,974	5,239,125
Non-Bermuda
Demand or less than $100k	662,147	2,972,934	3,635,081	19,755	3,326	5,432	954	29,467	3,664,548
Term and $100k or more	N/A	N/A	—	669,655	30,183	118,564	13,940	832,342	832,342
Total non-Bermuda	662,147	2,972,934	3,635,081	689,410	33,509	123,996	14,894	861,809	4,496,890
Total customer deposits	2,239,215	5,791,017	8,030,232	1,347,734	81,951	209,202	66,896	1,705,783	9,736,015
Banks
Bermuda
Demand or less than $100k	7,087	—	7,087	—	—	—	—	—	7,087
Non-Bermuda
Demand or less than $100k	—	5,671	5,671	—	—	—	—	—	5,671
Term and $100k or more	N/A	N/A	—	5,002	100	—	—	5,102	5,102
Total non-Bermuda	—	5,671	5,671	5,002	100	—	—	5,102	10,773
Total bank deposits	7,087	5,671	12,758	5,002	100	—	—	5,102	17,860
Total deposits	2,246,302	5,796,688	8,042,990	1,352,736	82,051	209,202	66,896	1,710,885	9,753,875
	Demand			Term
December 31, 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	1,840,201	2,578,411	4,418,612	13,983	4,267	8,640	13,984	40,874	4,459,486
Term - $100k or more	N/A	N/A	—	646,751	33,495	75,235	37,857	793,338	793,338
Total Bermuda	1,840,201	2,578,411	4,418,612	660,734	37,762	83,875	51,841	834,212	5,252,824
Non-Bermuda
Demand or less than $100k	639,525	2,755,517	3,395,042	19,147	5,202	4,762	781	29,892	3,424,934
Term and $100k or more	N/A	N/A	—	657,134	88,650	94,245	6,205	846,234	846,234
Total non-Bermuda	639,525	2,755,517	3,395,042	676,281	93,852	99,007	6,986	876,126	4,271,168
Total customer deposits	2,479,726	5,333,928	7,813,654	1,337,015	131,614	182,882	58,827	1,710,338	9,523,992
Banks
Bermuda
Demand or less than $100k	442	—	442	—	—	—	—	—	442
Non-Bermuda
Demand or less than $100k	—	7,704	7,704	—	—	—	—	—	7,704
Term and $100k or more	N/A	N/A	—	4,220	—	100	—	4,320	4,320
Total non-Bermuda	—	7,704	7,704	4,220	—	100	—	4,320	12,024
Total bank deposits	442	7,704	8,146	4,220	—	100	—	4,320	12,466
Total deposits	2,480,168	5,341,632	7,821,800	1,341,235	131,614	182,982	58,827	1,714,658	9,536,458

¹ As at March 31, 2018, $225 million (December 31, 2017: $225 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 March 31, 2018 is 0.03% (December 31, 2017: 0.02%).

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)

By Type and Segment	March 31, 2018			December 31, 2017
	Payable on demand	Payable on a fixed date	Total	Payable on demand	Payable on a fixed date	Total
Bermuda
Customers	4,395,151	843,974	5,239,125	4,418,649	834,211	5,252,860
Banks	7,088	—	7,088	442	—	442
Cayman
Customers	2,655,279	392,945	3,048,224	2,529,499	405,215	2,934,714
Banks	5,670	5,102	10,772	7,704	4,320	12,024
Channel Islands and the UK
Customers	979,802	468,864	1,448,666	865,506	470,912	1,336,418
Total Customers	8,030,232	1,705,783	9,736,015	7,813,654	1,710,338	9,523,992
Total Banks	12,758	5,102	17,860	8,146	4,320	12,466
Total deposits	8,042,990	1,710,885	9,753,875	7,821,800	1,714,658	9,536,458

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 2018 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 December 31, 2017. During the three months ended March 31, 2018, there have been no material revisions to these estimates.

	Three months ended
	March 31, 2018		March 31, 2017
Defined benefit pension expense (income)
Interest cost	1,271		1,318
Expected return on plan assets	(2,224	)	(2,015	)
Amortization of net actuarial loss	526		568
Total defined benefit pension expense (income)	(427	)	(129	)
Post-retirement medical benefit expense (income)
Service cost	16		16
Interest cost	1,076		1,176
Amortization of net actuarial losses	654		879
Amortization of prior service credit	10		(190	)
Total post-retirement medical benefit expense (income)	1,756		1,881

The components of defined benefit pension expense (income) and post-retirement benefit expense (income) other than the service cost component are included in the line item non-service employee benefits expense in the consolidated statements of income.

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)

Note 10: Credit related arrangements, repurchase agreements and commitments

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 utilized facility. At March 31, 2018, $50.9 million (December 31, 2017: $77.0 million) of standby letters of credit were issued under this facility.

Outstanding unfunded commitments to extend credit	March 31, 2018	December 31, 2017
Commitments to extend credit	510,549	602,740
Documentary and commercial letters of credit	807	1,263
Total unfunded commitments to extend credit	511,356	604,003

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, while 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 recognized 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.

	March 31, 2018			December 31, 2017
Outstanding financial guarantees	Gross	Collateral	Net	Gross	Collateral	Net
Standby letters of credit	164,921	157,155	7,766	186,408	178,158	8,250
Letters of guarantee	3,308	3,222	86	5,337	5,251	86
Total	168,229	160,377	7,852	191,745	183,409	8,336

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 March 31, 2018, the Bank had 19 open positions (December 31, 2017: 23) in resell agreements with a remaining maturity of less than 30 days involving pools of mortgages issued by US federal agencies. The amortized cost of these resell agreements is $197.9 million (December 31, 2017: $178.8 million) and are included in securities purchased under agreement to resell on the consolidated balance sheets. As at March 31, 2018, there were no positions (December 31, 2017: 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 March 31, 2018, a provision of $5.5 million (December 31, 2017: $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.

Pending Business Acquisition

On February 15, 2018, the Bank announced that it had entered into an agreement to acquire Deutsche Bank's banking and custody business in the Cayman Islands, Guernsey and Jersey. The transaction is subject to customary closing conditions, and is expected to close during the second half of 2018.

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 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 realizable value of this software upon completion of the orderly wind down.

	Expense recognized by period				Amounts paid by period		Exit cost liability
	Three months ended March 31, 2018	Years 2017, 2016 and 2015	Costs to be recognized in the future	Total exit costs expected to be incurred	Three months ended March 31, 2018	Years 2017, 2016 and 2015	As at March 31, 2018	As at December 31, 2017
Staff redundancy expenses	—	3,680	—	3,680	—	3,680	—	—
Professional services	—	4,388	—	4,388	—	4,388	—	—
Lease termination expenses	—	649	—	649	—	649	—	—
Other expenses	—	1,504	702	2,206	—	1,504	—	—
Total	—	10,221	702	10,923	—	10,221	—	—

Note 12: Segmented information

The Bank is managed by the CEO on a geographic basis. In 2017, the Bank presented six segments which included Bermuda, Cayman, Guernsey, Switzerland, The Bahamas and the United Kingdom. In 2018, the Bank reassessed the segment reporting as a result of acquisitions which were announced in 2017 or early 2018 and concluded on the following three geographic segments: Bermuda, Cayman, and Channel Islands and the UK. The Other segment is composed of several non-reportable operating segments that have been aggregated in accordance with US GAAP. Each region has a managing director who reports through the Chief Operating Officer to the CEO. The CEO and the region managing director have final authority over resource allocation decisions and performance assessment. The 2017 classification presented below was revised to conform the presentation for all periods to the current period's presentation.

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 on 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 December 31, 2017. 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.

The Bermuda segment provides a full range of retail, commercial and private banking services. Retail services are offered to individuals and small to medium-sized businesses through four 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 Channel Islands and the UK segment includes the jurisdictions of Guernsey (Channel Islands), and the UK. In the Channel Islands, a broad range of services are provided to private clients and financial institutions including private banking and treasury services, internet banking, administered bank services, wealth management and fiduciary services. The UK jurisdiction provides mortgage services for high-value residential properties.

The Other segment includes the jurisdictions of the Bahamas, Canada, Mauritius, Singapore and Switzerland. These operating segments individually and collectively do not meet the quantitative threshold for segmented reporting and are therefore aggregated as non-reportable operating segments.

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)

Total Assets by Segment	March 31, 2018		December 31, 2017
Bermuda	5,848,728		5,929,594
Cayman	3,386,485		3,242,343
Channel Islands and the UK	1,816,560		1,586,134
Other	28,912		13,859
Total assets before inter-segment eliminations	11,080,685		10,771,930
Less: inter-segment eliminations	(92,450	)	7,307
Total	10,988,235		10,779,237

	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 March 31, 2018	Customer	Inter- segment
Bermuda	47,674	599		1,811		20,920		71,004		(71	)	70,933		51,621		19,312
Cayman	23,670	1		203		11,467		35,341		429		35,770		14,617		21,153
Channel Islands and the UK	8,546	(600	)	(72	)	7,621		15,495		(5	)	15,490		11,533		3,957
Other	5	—		—		2,972		2,977		—		2,977		3,202		(225	)
Total before eliminations	79,895	—		1,942		42,980		124,817		353		125,170		80,973		44,197
Inter-segment eliminations	—	—		—		(3,219	)	(3,219	)	—		(3,219	)	(3,219	)	—
Total	79,895	—		1,942		39,761		121,598		353		121,951		77,754		44,197

	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 March 31, 2017	Customer	Inter- segment
Bermuda	42,265	251		546		19,575		62,637		314		62,951		43,966		18,985
Cayman	21,060	(11	)	(311	)	11,554		32,292		(7	)	32,285		15,328		16,957
Channel Islands and the UK	4,593	(251	)	104		5,840		10,286		(84	)	10,202		10,420		(218	)
Other	15	11		—		1,976		2,002		—		2,002		1,869		133
Total before eliminations	67,933	—		339		38,945		107,217		223		107,440		71,583		35,857
Inter-segment eliminations	—	—		—		(407	)	(407	)	—		(407	)	(407	)	—
Total	67,933	—		339		38,538		106,810		223		107,033		71,176		35,857

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 negotiated privately 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.

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)

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 minimize 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 investment hedges and derivatives not formally designated as hedges as described below.

Fair value hedges consist of designated interest rate swaps and are used to minimize 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 December 31, 2011, the Bank canceled 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 amortized to net income over the remaining life of each individual loan, which could extend to year 2029, using the effective interest method.

Net investment hedges includes designated currency swaps and qualifying non-derivative instruments and are used to minimize 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 recognized 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 minimize 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: Accumulated other comprehensive loss for details on the amount recognized 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 recognized 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 recognized 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.

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)

March 31, 2018	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	5	25,714	107	(31	)	76
Client services derivatives	Spot and forward foreign exchange	264	3,051,259	10,261	(9,148	)	1,113
Total derivative instruments			3,076,973	10,368	(9,179	)	1,189
December 31, 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	8	183,719	726	(2,754	)	(2,028	)
Client services derivatives	Spot and forward foreign exchange	120	2,130,224	10,595	(9,911	)	684
Total derivative instruments			2,313,943	11,321	(12,665	)	(1,344	)

In addition to the above, as at March 31, 2018 foreign denominated deposits of £84.5 million (December 31, 2017: £84.5 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.

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 recognized	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
March 31, 2018						Gross fair value of derivatives	Cash collateral  received / paid		Net exposures
Derivative assets
Spot and forward foreign exchange and currency swaps	10,368	(2,657	)	7,711		—	(4,510	)	3,201
Derivative liabilities
Spot and forward foreign exchange and currency swaps	9,179	(2,657	)	6,522		—	—		6,522
Net positive fair value				1,189
	Gross fair value recognized	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
December 31, 2017						Gross fair value of derivatives	Cash collateral  received / paid		Net exposures
Derivative assets
Spot and forward foreign exchange and currency swaps	11,321	(2,197	)	9,124		—	(6,196	)	2,928
Derivative liabilities
Spot and forward foreign exchange and currency swaps	12,665	(2,197	)	10,468		—	—		10,468
Net negative fair value				(1,344	)

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)

The following tables show 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.

		Three months ended
Derivative instrument	Consolidated statements of operations line item	March 31, 2018	March 31, 2017
Spot and forward foreign exchange	Foreign exchange revenue	428	43
Currency swaps, not designated as hedge	Foreign exchange revenue	2,105	(7,615	)
Currency swaps - net investment hedge	Foreign exchange revenue	—	424
Total net gains (losses) recognized in net income		2,533	(7,148	)
Derivative instrument	Consolidated statements of comprehensive income line item	March 31, 2018	March 31, 2017
Currency swaps - net investment hedge	Net change in unrealized gains and (losses) on translation of net investment in foreign operations	—	(1,365	)
Total net gains (losses) recognized in comprehensive income		—	(1,365	)

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 December 31, 2017.

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 three months ended March 31, 2018 and the year ended December 31, 2017.

	March 31, 2018				December 31, 2017
	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 recognized at fair value on a recurring basis:
Financial assets
Trading investments
Mutual funds	6,530	222	—	6,752	6,616	208	—	6,824
Total trading	6,530	222	—	6,752	6,616	208	—	6,824
Available-for-sale investments
US government and federal agencies	—	2,323,487	—	2,323,487	—	2,709,104	—	2,709,104
Non-US governments debt securities	—	26,170	—	26,170	—	26,248	—	26,248
Corporate debt securities	—	178,096	—	178,096	—	243,372	—	243,372
Asset-backed securities - Student loans	—	—	12,626	12,626	—	—	12,493	12,493
Commercial mortgage-backed securities	—	139,020	—	139,020	—	141,500	—	141,500
Residential mortgage-backed securities	—	175,981	—	175,981	—	184,723	—	184,723
Total available-for-sale	—	2,842,754	12,626	2,855,380	—	3,304,947	12,493	3,317,440
Other assets - Derivatives	—	7,711	—	7,711	—	9,124	—	9,124
Financial liabilities
Other liabilities - Derivatives	—	6,522	—	6,522	—	10,468	—	10,468

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)

Level 3 Reconciliation

The Level 3, shown as Asset-backed securities - Student loans in the above table, is a federal family education loan program 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.

	Three months ended March 31, 2018	Year ended December 31, 2017
	Available-  for-sale investments	Available-  for-sale investments
Carrying amount at beginning of period	12,493	12,493
Realized and unrealized gains (losses) recognized in other comprehensive income	133	—
Carrying amount at end of period	12,626	12,493

Items Other Than Those Recognized at Fair Value on a Recurring Basis:
		March 31, 2018				December 31, 2017
	Level	Carrying amount	Fair  value	Appreciation / (depreciation)		Carrying amount	Fair  value	Appreciation / (depreciation)
Financial assets
Cash due from banks	Level 1	1,845,628	1,845,628	—		1,535,138	1,535,138	—
Securities purchased under agreement to resell	Level 2	197,872	197,872	—		178,769	178,769	—
Short-term investments	Level 1	100,175	100,175	—		249,984	249,984	—
Investments held-to-maturity	Level 2	1,649,784	1,614,731	(35,053	)	1,381,955	1,377,354	(4,601	)
Loans, net of allowance for credit losses	Level 2	3,956,906	3,953,773	(3,133	)	3,776,862	3,770,450	(6,412	)
Other real estate owned¹	Level 2	8,787	8,787	—		9,127	9,127	—
Financial liabilities
Customer deposits
Demand deposits	Level 2	8,030,232	8,030,232	—		7,813,654	7,813,654	—
Term deposits	Level 2	1,705,783	1,706,092	(309	)	1,710,338	1,710,223	115
Deposits from banks	Level 2	17,860	17,860	—		12,466	12,466	—
Long-term debt	Level 2	117,000	116,605	395		117,000	118,321	(1,321	)

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

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 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.

March 31, 2018	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	1,748		—		—		—		—	98		1,846
Securities purchased under agreement to resell	198		—		—		—		—	—		198
Short-term investments	95		—		—		—		—	5		100
Investments	1,142		1		15		325		3,022	7		4,512
Loans	3,531		93		4		191		135	3		3,957
Other assets	—		—		—		—		—	375		375
Total assets	6,714		94		19		516		3,157	488		10,988
Liabilities and shareholders' equity
Shareholders’ equity	—		—		—		—		—	824		824
Demand deposits	5,797		—		—		—		—	2,246		8,043
Term deposits	1,353		82		209		67		—	—		1,711
Other liabilities	—		—		—		—		—	293		293
Long-term debt	117		—		—		—		—	—		117
Total liabilities and shareholders' equity	7,267		82		209		67		—	3,363		10,988
Interest rate sensitivity gap	(553	)	12		(190	)	449		3,157	(2,875	)	—
Cumulative interest rate sensitivity gap	(553	)	(541	)	(731	)	(282	)	2,875	—		—
December 31, 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	1,446		—		—		—		—	89		1,535
Securities purchased under agreement to resell	179		—		—		—		—	—		179
Short-term investments	163		87		—		—		—	—		250
Investments	1,464		62		15		390		2,768	7		4,706
Loans	3,457		44		34		194		44	4		3,777
Other assets	—		—		—		—		—	332		332
Total assets	6,709		193		49		584		2,812	432		10,779
Liabilities and shareholders' equity
Shareholders’ equity	—		—		—		—		—	823		823
Demand deposits	5,342		—		—		—		—	2,480		7,822
Term deposits	1,340		132		183		59		—	—		1,714
Other liabilities	—		—		—		—		—	303		303
Long-term debt	92		25		—		—		—	—		117
Total liabilities and shareholders' equity	6,774		157		183		59		—	3,606		10,779
Interest rate sensitivity gap	(65	)	36		(134	)	525		2,812	(3,174	)	—
Cumulative interest rate sensitivity gap	(65	)	(29	)	(163	)	362		3,174	—		—

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)

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 three months ended March 31, 2018, options to purchase an average of 0.4 million (March 31, 2017: 1.7 million) common shares were outstanding. During the three months ended March 31, 2018, the average number of outstanding awards of unvested common shares was 0.9 million (March 31, 2017: 0.9 million). Only awards for which the sum of 1) the expense that will be recognized in the future (i.e. the unrecognized 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 unrecognized 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.

	Three months ended
	March 31, 2018	March 31, 2017
Net income	44,197	35,857
Basic Earnings Per Share
Weighted average number of common shares issued	54,919	53,628
Weighted average number of common shares held as treasury stock	—	(1	)
Weighted average number of common shares (in thousands)	54,919	53,627
Basic Earnings Per Share	0.80	0.67
Diluted Earnings Per Share
Weighted average number of common shares	54,919	53,627
Net dilution impact related to options to purchase common shares	308	982
Net dilution impact related to awards of unvested common shares	586	612
Weighted average number of diluted common shares (in thousands)	55,813	55,221
Diluted Earnings Per Share	0.79	0.65

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 March 2, 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 was granted in the form of time vested options and vested 25% on each of the second, third, fourth and fifth anniversaries of the effective grant date.

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.

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)

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 was granted in the form of performance options and would vest (partially or fully) on a “valuation event” date (the date that any of the March 2, 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 realize a predetermined multiple of invested capital (“MOIC”)). On September 21, 2016, it was determined that a valuation event occurred during which a new investor realized 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)
Three months ended March 31, 2018	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	58		476		534		113.46	11.73
Exercised	—		(148	)	(148	)	—	11.62			4,892
Forfeitures and cancellations	(32	)	—		(32	)	153.63	—
Outstanding at end of period	26		328		354		64.49	11.78	0.95	2.28	10,789.8772
Vested and exercisable at end of period	26		328		354		64.49	11.78	0.95	2.28
	Number of shares transferable upon exercise (thousands)						Weighted average  exercise price ($)		Weighted average  remaining life (years)		Aggregate  intrinsic value  ($ thousands)
Three months ended March 31, 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	—		(942	)	(942	)	—	11.52			20,046
Forfeitures and cancellations	(44	)	—		(44	)	162.59	—
Outstanding at end of period	72		1,008		1,080		113.26	11.61	1.39	3.16	20,466
Vested and exercisable at end of period	72		1,008		1,080		113.26	11.61	1.39	3.16

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.

The grant date weighted average fair value of unvested share awards granted in the three months ended March 31, 2018 was $39.25 (year 2017: $31.13). The Bank expects to settle these awards by issuing new shares.

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 2015 - 2018

The 2018 ELTIP was approved on February 13, 2018. Under the Bank’s ELTIP plans for the years 2015 through 2018, performance shares as well as time-vested shares were awarded to executive management. The performance shares will generally vest upon the achievement of certain performance targets in the three-year period from the effective grant date. The time-vested shares will generally vest over the three-year period from the effective grant date.

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)

Changes in Outstanding ELTIP and EDIP awards (in thousands of shares transferable upon vesting)
	Three months ended
	March 31, 2018				March 31, 2017
	EDIP		ELTIP		EDIP		ELTIP
Outstanding at beginning of period	244		679		215		640
Granted	124		224		125		216
Vested (fair value in 2018: $13.0 million, 2017: $8.5 million)	(120	)	(169	)	(102	)	(148	)
Resignations, retirements, redundancies	(2	)	(4	)	—		—
Outstanding at end of period	246		730		238		708

Share-based Compensation Cost Recognized in Net Income
	Three months ended
	March 31, 2018			March 31, 2017
	Stock option  plans	EDIP and  ELTIP	Total	Stock option plans	EDIP and ELTIP	Total
Cost recognized in net income	—	2,537	2,537	—	1,741	1,741

Unrecognized Share-based Compensation Cost
	March 31, 2018		December 31, 2017
	Unrecognized cost	Weighted average years over which it is expected to be recognized	Unrecognized cost	Weighted average years over which it is expected to be recognized
EDIP	7,268	2.35	3,453	1.85
ELTIP
Time vesting shares	3,114	1.73	3,302	1.89
Performance vesting shares	12,197	2.44	5,010	1.78
Total unrecognized expense	22,579		11,765

Note 18: Share buy-back plans

The Bank initially introduced two share buy-back programs on May 1, 2012 as a means to improve shareholder liquidity and facilitate growth in share value. Each program 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 program.

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 program, 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 program 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 Program

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

On February 15, 2018, the Board approved, with effect on April 1, 2018, the 2018 common share buy-back program, authorizing the purchase for treasury of up to 1.0 million common shares. The timing and amount of repurchase transactions will be based on market conditions, share price, legal requirements and other factors. No assurances can be given as to the amount of common shares that may actually be repurchased.

	Three months ended	Year ended December 31
Common share buy-backs	March 31, 2018	2017	2016	2015	2014	Total
Acquired number of shares (to the nearest 1)	—	—	97,053	250,371	856,734	1,204,158
Average cost per common share	—	—	16.36	19.42	19.86	19.49
Total cost (in US dollars)	—	—	1,588,189	4,862,248	17,018,412	23,468,849

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)

Note 19: Accumulated other comprehensive loss

	Unrealized (losses) on translation of net investment in foreign operations		HTM  investments		Unrealized gains (losses) on AFS investments		Employee benefit plans
March 31, 2018							Pension		Post-retirement  healthcare		Subtotal -  employee benefits plans		Total AOCL
Balance at beginning of period	(17,549	)	(839	)	(15,737	)	(61,341	)	(33,586	)	(94,927	)	(129,052	)
Other comprehensive income (loss), net of taxes	1,184		22		(28,721	)	38		664		702		(26,813	)
Balance at end of period	(16,365	)	(817	)	(44,458	)	(61,303	)	(32,922	)	(94,225	)	(155,865	)
	Unrealized (losses) on translation of net investment in foreign operations		HTM  investments		Unrealized gains (losses) on AFS investments		Employee benefit plans
March 31, 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	358		48		4,851		329		689		1,018		6,275
Balance at end of period	(19,794	)	(931	)	(17,829	)	(62,903	)	(36,948	)	(99,851	)	(138,405	)

Net Change of AOCL Components		Three months ended
	Line item in the consolidated statements of operations, if any	March 31, 2018		March 31, 2017
Net unrealized gains (losses) on translation of net investment in foreign operations adjustments
Foreign currency translation adjustments	N/A	5,493		2,026
Gains (loss) on net investment hedge	N/A	(4,309	)	(1,668	)
Net change		1,184		358
Held-to-maturity investment adjustments
Amortization of net gains (losses) to net income	Interest income on investments	22		48
Net change		22		48
Available-for-sale investment adjustments
Gross unrealized gains (losses)	N/A	(27,871	)	4,920
Transfer of realized (gains) losses to net income	Net realized gains (losses) on AFS investments	(850	)	(69	)
Net change		(28,721	)	4,851
Employee benefit plans adjustments
Defined benefit pension plan
Amortization of net actuarial losses	Non-service employee benefits expense	526		568
Foreign currency translation adjustments of related balances	N/A	(488	)	(239	)
Net change		38		329
Post-retirement healthcare plan
Amortization of net actuarial losses	Non-service employee benefits expense	654		879
Amortization of prior service credit	Non-service employee benefits expense	10		(190	)
Net change		664		689
Other comprehensive income (loss), net of taxes		(26,813	)	6,275

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)

Note 20: Capital structure

Authorized Capital

On September 16, 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 July 25, 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 September 6, 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 September 6, 2016, the par value of each issued common share and each authorized but unissued common share was reduced from BM$0.10 to BM$0.01 and the authorized 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 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 authorized 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) 110,200,001 preference shares of par value US$0.01 and (iv) 50 million preference shares of par value £0.01.

Dividends Declared

During the three months ended March 31, 2018, the Bank paid cash dividends of $0.38 (March 31, 2017: $0.32) for each common share as of the related record dates.

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 January 1, 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 January 1, 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 March 31, 2018 and December 31, 2017. The following table sets forth the Bank's capital adequacy in accordance with the Basel III framework:

	March 31, 2018				December 31, 2017
	Actual		Regulatory minimum		Actual		Regulatory minimum
Capital
Common Equity Tier 1	768,812		N/A		772,311		N/A
Tier 1 capital	768,812		N/A		772,311		N/A
Tier 2 capital	67,325		N/A		74,010		N/A
Total capital	836,137		N/A		846,321		N/A
Risk Weighted Assets	4,366,219		N/A		4,254,178		N/A
Leverage Ratio Exposure Measure	11,315,239		N/A		11,195,173		N/A
Capital Ratios (%)
Common Equity Tier 1	17.6	%	9.4	%	18.2	%	8.8	%
Total Tier 1	17.6	%	10.9	%	18.2	%	10.3	%
Total Capital	19.2	%	15.5	%	19.9	%	14.9	%
Leverage ratio	6.8	%	5.0	%	6.9	%	5.0	%

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 21: Business combinations

Deutsche Bank’s Global Trust Solutions Acquisition

On March 29, 2018, the Bank concluded the acquisition of Deutsche Bank’s Global Trust Solutions (“GTS”) business, excluding its US operations, for an initial cash payment of $30.2 million. Butterfield has taken over the ongoing management and administration of the GTS portfolio, comprising approximately 1,000 trust structures for some 900 private clients. Butterfield is also offering positions to all employees who are fully dedicated to GTS in the Cayman Islands, Guernsey, Switzerland, Singapore and Mauritius.

The final consideration payable depends on the actual level of ongoing revenues from GTS clients as measured on the acquisition date. On publication date of the present financial statements, this amount was not adjusted as the final information for the actual ongoing revenues from GTS clients as measured on the acquisition date was not yet available.

The assets acquired consist mainly of: customer relationships intangible assets, goodwill and accounts receivable. The liabilities assumed consist mainly of deferred revenues and accounts payable. On publication date of the present financial statements, the initial accounting for this acquisition is incomplete as the Bank had not finished receiving and analyzing all the information required to more precisely allocate the purchase price, mainly between customer relationships intangible assets and goodwill. However, it is estimated that the fair value of identifiable non-tangible assets will consists primarily of customer relationship intangible assets to which the Bank provisionally assigned a fair value of $30.2 million. Consequently, the Bank has provisionally allocated no value to goodwill. These initial allocations are subject to change during the rest of year 2018 as the Bank will continue to receive and analyze information for this acquisition.

Note 22: Related party transactions

Financing Transactions

Certain directors and executives of the Bank, companies in which they are principal owners and/or members of the board, 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 at March 31, 2018, related party director and executive loan balances were $58.2 million (December 31, 2017: $30.6 million). During the three months ended March 31, 2018, new issuance of loans and change in directorships to directors and executives were $27.6 million and repayments and change in directorships were nil (year ended December 31, 2017: $31.7 and $8.9 million, respectively). During the year ended December 31, 2017, a director resigned from the Board resulting in $4.3 million in loans being reclassified out of related party loans. All of these loans were considered performing loans as at March 31, 2018 and December 31, 2017.

Certain directors and executives of the Bank, companies in which they are principal owners, and trusts in which they are involved, have deposits with the Bank. As at March 31, 2018, related party director and executive deposit balances were $21.2 million (December 31, 2017: $23.5 million).

On October 6, 2015, the Bank executed a $6 million loan agreement with a related party of an executive which originally matured on October 31, 2017. This agreement was renewed at $6 million and matures on November 2, 2018. This loan was made in the ordinary course of business on normal commercial terms. At March 31, 2018, nil (December 31, 2017: nil) was outstanding under this agreement. For the three months ended March 31, 2018, nil (March 31, 2017: nil) of interest income has been recognized in the consolidated statements of operations in relation with this agreement.

Certain affiliates of the Bank have loans and deposits with the Bank. The loans were made and the deposits are maintained in the ordinary course of business on normal commercial terms. At March 31, 2018, affiliates had loan balances of $10.4 million (December 31, 2017: $10.5 million) and deposits balances of $0.5 million (December 31, 2017: $0.6 million). For the three months ended March 31, 2018, the Bank has recognized $0.4 million (March 31, 2017: $0.5 million) of non-interest expenses and $0.1 million (March 31, 2017: $0.2 million) of loan interest revenue in the consolidated statement of operations relating to affiliates which the Bank holds investments in.

Capital Transaction

Up to February 28, 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 February 28, 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 March 31, 2018, these investments have a fair value of $5.0 million with an unrealized gain of $1.5 million (December 31, 2017: $5.0 and $1.6 million, respectively) and were included in trading investments at their fair value. During the three months ended March 31, 2018, the Bank earned $2.2 million (March 31, 2017: $1.6 million) in asset management revenue from funds managed by a wholly-owned subsidiary of the Bank.

Note23: Subsequent events

On April 23, 2018, the Board of Directors declared an interim dividend of $0.38 per common share to be paid on May 15, 2018 to shareholders of record on May 4, 2018.

35

EX-99.3

First Quarter 2018 Earnings Presentation The Bank of N.T. Butterfield & Son Limited April 24, 2018

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 other than required by law. 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 $millions and as of December 31, 2017 unless otherwise indicated . Conversion rate: 1 BMD$ = 1 US$.

3 First Quarter 2018 Earnings Presentation Presenters Agenda Ten International Locations Butterfield Overview Michael Collins Chairman and 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 First Quarter 2018 Highlights Core Net Income** Core Return on Average Tangible Common Equity** vs. Q4 2017 vs. Q1 2017 Q1 2018 $ % $ % Net Interest Income $ 79.9 $ 3.8 3.9 % $ 12.0 14.2 % Non-Interest Income 39.8 (2.6) (1.2)% 1.2 5.4 % Prov. for Credit Losses 1.9 (3.4) (228.8)% 1.6 (315.3)% Non-Interest Expenses* (77.8) 3.1 (2.2)% (6.6) (4.8)% Other Gains (Losses) 0.4 3.0 (11.6)% 0.1 181.3 % Net Income $ 44.2 $ 3.9 9.8 % $ 8.3 23.3 % Non-Core Items** 0.8 (1.1) (128.6)% (1.8) (104.5)% Core Net Income** $ 45.0 $ 2.8 3.7 % $ 6.5 14.5 % • Net income of $44.2 million, or $0.79 per share • Core Net Income** of $45.0 million, or $0.81 per share • Return on average common equity of 21.8%; core return on average tangible common equity** of 24.3% • Net Interest Margin of 3.05%, cost of deposits of 0.12% • Completed acquisition of Global Trust Solutions business from Deutsche Bank • Announced acquisition of Deutsche Bank's banking and custody business in the Cayman Islands and Channel Islands • Common share dividend of $0.38 per share * Includes income taxes ** See the Appendix for a reconciliation of the non-GAAP measure Q1 Q2 Q3 Q4 Q1 $38.5 $37.5 $40.7 $42.2 $45.0 Q1 Q2 Q3 Q4 Q1 23.4% 21.6% 22.2% 22.3% 24.3% 2017 2018 2017 2018

Financials

6 Q1 Q2 Q3 Q4 Q1 $67.9 $76.1 $79.9 Net Interest Income before Provision for Credit Losses - Trend Q1 2018 vs. Q4 2017 Avg. Balance Yield Avg. Balance Yield Cash, S/T Inv. & Repos $ 2,173.8 0.94 % $ 38.0 0.08% Investments 4,574.6 2.54 % (63.5) 0.27% Loans (net) 3,861.2 5.31 % 129.5 0.08% Interest Earning Assets 10,609.5 3.22 % 104.0 Total Liabilities 10,152.7 (0.17)% 112.6 —% Net Interest Margin 3.05 % 0.18% Net Interest Margin & Yields 2017 2018 Income Statement Net Interest Income • Net interest income rose 5.0% in the first quarter of 2018 compared to the prior quarter • Net interest margin increased 18 bps from the previous quarter and 47 bps from the first quarter of 2017 • Yields on investments improved to 2.54% from 2.27% in the previous quarter and 2.17% in the first quarter of 2017 • Loan yields grew by 8 bps compared to the prior quarter due to the December Fed rate increase and growth in loan volume

7 Income Statement Non-Interest Income Non-Interest Income Trend vs. Q4 2017 Q1 2018 $ % Asset management $ 6.4 $ (0.2) Banking 10.9 (1.1) FX Revenue 8.2 (0.6) Trust 10.9 (0.5) Custody and Other 2.2 0.1 Other 1.2 (0.2) Total Non-Interest Income $ 39.8 $ (2.6) (6.1)% Q1 Q2 Q3 Q4 Q1 $38.5 $42.4 $39.8 • Non-interest income was down compared to the prior quarter but up 3.2% compared to the first quarter of 2017 • Banking and FX Revenue growth were down relative to strong fees generated during holiday seasonal fourth quarter promotions • Diversified fee generating businesses continued to perform well • Fee income ratio of 32.7% remains favorable compared to peers* while moderating as interest income has grown 2017 * Includes US banks identified by management as a peer group. Please see the Appendix for a list of these banks. 2018

8 Income Statement Non-Interest Expenses Non-Interest Expense Trend *** Core Non-Interest Expenses* vs. Q4 2017 Q1 2018 $ % Salaries & Benefits** $ 37.0 $ (5.3) 0.3 % Technology & Comm. 14.6 0.3 (1.5)% Property 5.1 0.6 (3.8)% Professional & O/S Services 8.1 1.4 (1.8)% Indirect Taxes 4.9 0.2 2.2 % Intangible Amortization 1.1 — (9.1)% Marketing 0.9 (0.6) (62.5)% Other *** 4.3 0.5 (12.5)% Total Core Non-Interest Expenses* $ 76.0 $ (2.9) (3.7)% Non-Core Expenses* 1.7 (0.2) (42.4)% Non-Interest Expenses $ 77.8 $ (3.1) (3.8)% Non-Interest Expenses Core Efficiency Ratio Q1 Q2 Q3 Q4 Q1 $71.2 $80.8 $77.8 63.2% 65.4% 62.3% • Expenses were down due to lower discretionary compensation and lower defined benefit pension costs in the first quarter of 2018 compared to fourth quarter of 2017 • The first quarter of 2018 included Sarbanes-Oxley-related costs incurred at year-end for sunsetting of initial implementation of necessary systems and processes • Non-core expenses of $1.7 million primarily include $1.6 million related primarily to recent acquisitions • Cost / income ratios expected to normalize in the short term on existing businesses 2017 * See the Appendix for a reconciliation of the non-GAAP measure. ** Includes Non-Service Employee Benefits Expense *** Includes Other Non-Interest Expenses and Income Taxes 2018

9 Capital Requirements and Return Leverage Capital • Active capital management remains a focus and contemplates possibility of future acquisitions • Leverage capital down 2 bps in the first quarter of 2018 and remains below peer median • Filing of F-3 provides efficient access to future capital, if desired • Board approved quarterly cash dividend of $0.38 per common share Regulatory Capital (Basel III) - Total Capital Ratio Butterfield Current BMA 2017 Required US Peer Average * 19.2% 15.5% 14.1% * 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 - Current US Peer Median * 6.7% 8.5% 1.4% 0.5%8.1% 9.0%

10 Balance Sheet Total Assets • Loan balances increased with continued growth in UK residential mortgages, commercial lending in several jurisdictions and further advances under a sovereign loan • Cash balances increased due in part from excess liquidity from the investment portfolio as well as increased deposits in Cayman • Cost of deposits were unchanged at 0.12% Q1 2018 Q4 2017 Cash & Equivalents $ 1,846 $ 1,535 S/T Inv. & Reverse Repos 298 429 Loans (net) 3,957 3,777 Investments 4,512 4,706 Other Assets 376 332 Total Assets $ 10,988 $ 10,779 Int. Bearing Deposits $ 7,508 $ 7,056 Non-Int. Bearing Deposits 2,246 2,480 Other Liabilities 410 420 Shareholders Equity 824 823 Total Liab. & Equity $ 10,988 $ 10,779 Total assets Investments Loans Q1 Q2 Q3 Q4 Q1 $10.9 $10.8 $11.0 $4.5 $4.7 $4.5 $3.6 $3.8 $4.0 Total deposits Non-interest bearing Interest bearing Cost of deposits Q1 Q2 Q3 Q4 Q1 $9.8 $9.5 $9.8 0.11% 0.12% 0.12% 2017 2017 Total Deposits 2018 2018

11 Asset Quality Non-Accrual Loans Non-Accrual Loans Q1 Q2 Q3 Q4 Q1 $50.1 $43.9 $42.4 Res Mtg: 63.7% Consumer: 4.7% Comm’l R/E: 14.8% Other Comm’l: 12.0% Gov’t: 4.8% Loan Distribution 20182017 0.10% 0.08% 0.06% 0.04% 0.02% 0.00% Q1 Q2 Q3 Q4 Q1 0.01% 0.04% 0.02% Net Charge-Off Ratio AAA: 94.6% AA: 1.3% A: 2.9% BBB: 1.2% $4.0 billion $4.5 billion Investment Portfolio Rating Distribution 20182017

12 Interest Rate Sensitivity Interest Rate SensitivityAverage Balance - Balance Sheet Average Balances ($bn) Q1 2018 vs. Q4 2017 Duration vs. Q4 2017 Cash 1,966.5 30.3 N/A N/A S/T Invest. 207.3 7.8 0.1 (0.1) AFS 3,121.5 (204.5) 2.8 0.5 HTM 1,452.0 141.3 6.1 0.5 Total 6,747.3 (25.1) NTB US Peer Median * -100bps +100bps +200bps (11.4)% 4.4% 8.9% (4.8)% 3.2% 5.2% • The Bank remains significantly more sensitive to increases in interest rates relative to its US peers* • Average deposit balances vary from quarter to quarter depending on client requirements • Improving rate environment continues to benefit asset sensitive positioning * Includes US banks identified by management as a peer group. Please see the Appendix for a list of these banks.

Appendix

14 Appendix Balance Sheet Trends 2018 2017 2016 Q1 Q4 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Assets Cash & Equivalents $ 1,846 $ 1,535 $ 1,546 $ 1,720 $ 1,867 $ 2,102 $ 1,485 $ 2,655 $ 1,774 Reverse Repos 198 179 210 184 63 149 186 — — S/T Investments 100 250 208 294 542 520 995 436 425 Investments 4,512 4,706 4,613 4,558 4,549 4,400 4,114 3,870 3,679 Loans, Net 3,957 3,777 3,664 3,588 3,573 3,570 3,836 3,904 3,953 Other Assets 376 332 338 335 350 363 363 422 355 Total Assets $ 10,988 $ 10,779 $ 10,578 $ 10,679 $ 10,944 $ 11,104 $ 10,979 $ 11,287 $ 10,186 Liabilities and Equity Total Deposits $ 9,754 $ 9,536 $ 9,407 $ 9,479 $ 9,849 $ 10,034 $ 9,667 $ 10,091 $ 8,939 Long-Term Debt 117 117 117 117 117 117 117 117 117 Other Liabilities 293 303 252 313 236 242 230 263 343 Total Liabilities $ 10,164 $ 9,956 $ 9,776 $ 9,909 $ 10,203 $ 10,393 $ 10,014 $ 10,471 $ 9,399 Common Equity $ 824 $ 823 $ 802 $ 770 $ 741 $ 711 $ 782 $ 633 $ 604 Preferred Equity — — — — — — 183 183 183 Total Equity $ 824 $ 823 $ 802 $ 770 $ 741 $ 711 $ 965 $ 816 $ 787 Total Liabilities and Equity $ 10,988 $ 10,779 $ 10,578 $ 10,679 $ 10,944 $ 11,104 $ 10,979 $ 11,287 $ 10,186 Key Metrics TCE / TA 6.7% 7.1% 7.0% 6.7% 6.2% 5.9% 6.6% 5.0% 5.5% CET 1 Ratio 17.6% 18.2% 17.8% 17.0% 15.8% 15.3% 16.1% 12.3% 12.4% Total Tier 1 Capital Ratio 17.6% 18.2% 17.8% 17.0% 15.8% 15.3% 20.5% 16.5% 16.4% Total Capital Ratio 19.2% 19.9% 19.9% 19.1% 17.9% 17.6% 22.9% 18.9% 18.7%

15 Appendix Average Balance Sheet Trends 2018 - Q1 2017 - Q4 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 $ 2,173.8 $ 5.0 0.94 % $ 2,135.8 $ 4.7 0.86 % $ 2,476.7 $ 3.5 0.57 % Investment in securities 4,574.6 28.6 2.54 % 4,638.0 26.6 2.27 % 4,556.4 24.4 2.17 % Trading 1.0 — — % 1.3 — — % 0.7 — — % AFS 3,121.5 17.3 2.25 % 3,326.1 17.1 2.04 % 3,358.7 15.9 1.92 % HTM 1,452.0 11.3 3.16 % 1,310.7 9.5 2.87 % 1,196.9 8.6 2.90 % Loans 3,861.2 50.5 5.31 % 3,731.7 49.2 5.23 % 3,661.1 44.0 4.87 % Commercial 1,221.5 16.6 5.52 % 1,140.9 15.0 5.20 % 1,361.5 15.1 4.49 % Consumer 2,639.6 33.9 5.21 % 2,590.8 34.2 5.24 % 2,299.6 28.9 5.10 % Total interest earning assets 10,609.5 84.2 3.22 % 10,505.5 80.4 3.03 % 10,694.1 71.9 2.73 % Other assets 325.4 325.4 352.7 — % Total assets $ 10,935.0 $ 84.2 3.12 % $ 10,830.9 $ 80.4 2.94 % $ 11,046.8 $ 71.9 2.64 % Liabilities Interest bearing deposits $ 7,411.3 $ (2.9) (0.16)% $ 7,222.4 $ (3.0) (0.16)% $ 7,656.2 $ (2.8) (0.15)% Customer demand deposits 5,320.8 (0.1) (0.01)% 5,149.5 (0.2) — % 5,411.2 (0.3) (0.02)% Customer term deposits 2,079.4 (2.6) (0.51)% 2,061.6 (2.3) (0.46)% 2,177.7 (2.4) (0.44)% Deposits from banks 11.1 (0.2) (8.82)% 11.3 (0.5) (18.60)% 67.4 (0.1) (0.49)% Securities sold under agreement to repurchase 1.8 — (1.96)% — — — % — — — % Long-term debt 117.0 (1.3) (4.66)% 117.0 (1.3) (4.34)% 117.0 (1.2) (4.14)% Interest bearing liabilities 7,530.1 (4.3) (0.23)% 7,339.4 (4.3) (0.23)% 7,773.2 (4.0) (0.21)% Non-interest bearing customer deposits 2,366.3 2,446.9 2,334.1 — % Other liabilities 256.3 253.8 257.0 — % Total liabilities $ 10,152.7 $ (4.3) (0.17)% $ 10,040.1 $ (4.3) (0.17)% $ 10,364.3 $ (4.0) (0.16)% Shareholders’ equity 782.3 790.8 682.5 — % Total liabilities and shareholders’ equity $ 10,935.0 $ 10,830.9 $ 11,046.8 — % Non-interest bearing funds net of non-interest earning assets (free balance) $ 3,079.5 $ 3,166.1 $ 2,920.9 Net interest margin $ 79.9 3.05 % $ 76.1 2.87 % $ 67.9 2.58 %

16 Appendix Income Statement Trends 2018 2017 2016 Q1 Q4 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Net Interest Income $ 79.9 $ 76.1 $ 74.3 $ 71.5 $ 67.9 $ 66.8 $ 65.0 $ 64.3 $ 62.3 Non-Interest Income 39.8 42.4 38.2 38.7 38.5 38.8 36.3 37.9 34.5 Prov. for Credit Recovery (Losses) 1.9 5.4 0.7 (0.5) 0.3 0.9 (0.3) (5.3) 0.3 Non-Interest Expenses 77.8 80.8 73.8 75.6 71.2 71.9 77.5 67.0 70.2 Other Gains (Losses) 0.4 (2.7) 1.8 2.0 0.2 0.8 0.6 (0.2) (0.2) Net Income $ 44.2 $ 40.3 $ 41.1 $ 36.1 $ 35.9 $ 35.4 $ 24.0 $ 29.8 $ 26.8 Non-Core Items* $ 0.8 $ 1.9 $ (0.4) $ 1.4 $ 2.6 $ 1.7 $ 9.4 $ 2.3 $ 9.2 Core Net Income $ 45.0 $ 42.2 $ 40.7 $ 37.5 $ 38.5 $ 37.1 $ 33.4 $ 32.1 $ 36.0 Key Metrics Loan Yield 5.31% 5.23% 5.16% 5.11% 4.90% 4.92% 4.75% 4.72% 4.74% Securities Yield 2.54 2.27 2.22 2.20 2.17 1.98 1.91 1.87 2.07 Cost of deposits 0.12 0.12 0.10 0.11 0.11 0.10 0.11 0.12 0.15 Net Interest Margin 3.05 2.87 2.81 2.66 2.58 2.45 2.39 2.44 2.54 Core Efficiency Ratio* 62.3 65.4 62.8 66.1 63.2 65.6 65.3 61.8 62.5 Core ROATCE* 24.3 22.3 22.2 21.6 23.4 19.3 19.0 20.1 23.7 Fee Income Ratio 32.7 34.2 33.8 35.3 36.1 36.4 35.9 39.1 35.5 Fully Diluted Share Count (in millions of common shares) 55.8 55.6 55.5 55.6 55.2 54.7 49.0 47.3 47.4 * See the Appendix for a reconciliation of the non-GAAP measure.

17 Appendix Non-Interest Income & Expense Trends 2018 2017 2016 Q1 Q4 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Non-Interest Income Trust $ 10.9 $ 11.3 $ 10.9 $ 11.3 $ 11.4 $ 11.5 $ 11.6 $ 10.8 $ 10.1 Asset Management 6.4 6.6 6.3 5.9 5.8 6.0 5.6 5.3 4.2 Banking 10.9 12.0 10.8 10.9 10.0 11.0 9.7 10.0 8.7 FX Revenue 8.2 8.8 7.6 7.5 8.3 7.4 6.5 8.4 8.3 Custody & Other Admin. 2.2 2.2 2.0 1.9 2.0 2.0 2.3 2.3 2.2 Other 1.2 1.4 0.5 1.1 0.9 0.9 0.6 1.0 1.0 Total Non-Interest Income $ 39.8 $ 42.4 $ 38.2 $ 38.7 $ 38.5 $ 38.8 $ 36.3 $ 37.9 $ 34.5 Non-Interest Expense Salaries & Benefits* $ 37.0 $ 42.4 $ 37.4 $ 37.4 $ 36.0 $ 34.2 $ 42.4 $ 32.2 $ 31.2 Technology & Comm. 14.7 14.4 13.2 13.4 12.9 14.5 14.4 14.1 14.5 Property 5.1 4.5 5.1 5.4 4.9 5.5 5.4 5.1 5.0 Professional & O/S Services 9.7 8.0 6.9 6.1 6.2 5.4 4.1 5.4 4.1 Indirect Taxes 4.9 4.7 4.6 4.5 4.2 4.7 4.2 2.8 4.6 Intangible Amortization 1.1 1.1 1.0 1.1 1.0 1.0 1.2 1.3 1.1 Marketing 0.9 1.5 0.9 2.4 1.0 1.7 0.9 1.0 0.9 Restructuring — 0.3 0.4 0.6 0.4 0.5 0.6 0.7 4.5 Other 3.9 3.5 4.0 4.5 4.3 4.4 4.4 4.2 4.0 Total Non-Interest Expense $ 77.4 $ 80.4 $ 73.6 $ 75.3 $ 71.0 $ 71.9 $ 77.3 $ 66.7 $ 69.9 Income Taxes 0.4 0.5 0.2 0.3 0.2 — 0.2 0.2 0.3 Total Expense incld. Taxes $ 77.8 $ 80.8 $ 73.8 $ 75.6 $ 71.2 $ 71.9 $ 77.5 $ 67.0 $ 70.2 *Includes non-service employee benefits

18 Appendix Core Non-Interest Expense Trends 2018 2017 2016 Q1 Q4 Q3 Q2 Q1 Q4 Q3 Q2 Q1 Salaries & Benefits* $ 37.0 $ 42.2 $ 37.2 $ 37.1 $ 35.9 $ 34.0 $ 33.6 $ 31.5 $ 29.6 Technology & Comm. 14.6 14.3 13.1 13.3 12.8 14.4 14.2 13.8 13.9 Property 5.1 4.5 5.1 5.3 4.9 5.5 5.3 5.0 5.0 Professional & O/S Services 8.1 6.7 5.6 5.7 4.3 5.4 3.9 4.8 3.0 Indirect Taxes 4.9 4.7 4.6 4.5 4.3 3.9 3.9 2.8 4.6 Intangible Amortization 1.1 1.1 1.0 1.1 1.0 1.0 1.2 1.3 1.1 Marketing 0.9 1.5 0.9 2.4 1.0 1.7 0.9 1.0 0.9 Other 3.9 3.5 4.0 4.5 4.2 4.3 4.3 4.2 3.4 Total Core Non-Interest Expense $ 75.6 $ 78.5 $ 71.6 $ 73.9 $ 68.4 $ 70.2 $ 67.3 $ 64.4 $ 61.5 Income Taxes 0.4 0.5 0.2 0.3 0.2 — 0.2 0.2 0.3 Total Core Expense incld. Taxes $ 76.0 $ 78.9 $ 71.8 $ 74.2 $ 68.6 $ 70.2 $ 67.5 $ 64.6 $ 61.8 *Includes non-service employee benefits

19 Appendix Non-GAAP Reconciliation (in millions of US Dollars, unless otherwise indicated) 2018 2017 Q1 Q4 Q3 Q2 Q1 Net income A $ 44.2 $ 40.3 $ 41.1 $ 36.1 $ 35.9 Dividends and guarantee fee of preference shares — — — — — Premium paid on repurchase of preference shares B — — — — — Net income to common shareholders C 44.2 40.3 41.1 36.1 35.9 Non-core (gains), losses and expenses Non-core (gains) losses Gain on disposal of a pass-through note investment (formerly a SIV) (0.9) — (2.5) — (0.1) Impairment of and gain on disposal of fixed assets (including software) — — — — — Change in unrealized (gains) losses on certain investments — — — — — Adjustment to holdback payable for a previous business acquisition — — 0.1 — 0.1 Total non-core (gains) losses D $ (0.9) $ — $ (2.4) $ — $ — Non-core expenses Early retirement program, redundancies and other non-core compensation costs — — 0.1 0.1 — Tax compliance review costs 0.1 0.6 0.4 0.7 0.2 Provision in connection with ongoing tax compliance review — — — — — Business acquisition costs 1.6 1.0 1.1 — — Restructuring charges and related professional service fees — 0.3 0.4 0.6 0.4 Investigation of an international stock exchange listing costs — — — — — Cost of 2010 legacy option plan vesting and related payroll taxes — — — — — Secondary offering costs — — — — 2.0 Total non-core expenses E $ 1.7 $ 1.9 $ 2.0 $ 1.4 $ 2.6 Total non-core (gains), losses and expenses F=D+E 0.8 1.9 (0.4) 1.4 2.6 Core net income G=A+F $ 45.0 $ 42.2 $ 40.7 $ 37.5 $ 38.5 Core net income attributable to common shareholders H=C-B+F 45.0 42.2 40.7 37.5 38.5 Average shareholders' equity 820.7 809.6 788.9 759.2 729.3 Less: average preference shareholders' equity — — — — — Average common equity I 820.7 809.6 788.9 759.2 729.3 Less: average goodwill and intangible assets (68.4) (60.9) (61.3) (61.6) (61.7) Average tangible common equity J 752.3 748.7 727.6 697.6 667.6 Return on equity C/I 21.8% 19.7% 20.7% 19.0% 19.9% Core return on average tangible common equity H/J 24.3% 22.3% 22.2% 21.6% 23.4% Core earnings per common share fully diluted Adjusted weighted average number of diluted common shares (in thousands) K 55.8 55.6 55.5 55.6 55.2 Earnings per common share fully diluted C/K 0.79 0.72 0.74 0.65 0.65 Non-core items per share (F-B)/K 0.02 0.04 (0.01) 0.02 0.05 Core earnings per common share fully diluted 0.81 0.76 0.73 0.67 0.70

20 Appendix Non-GAAP Reconciliation (cont’d) (in millions of US Dollars, unless otherwise indicated) 2018 2017 Q1 Q4 Q3 Q2 Q1 Core return on average tangible assets Total average assets L $ 10,970.9 $ 10,851.0 $ 10,744.8 $ 10,981.8 $ 10,982.6 Less: average goodwill and intangible assets (68.4) (60.9) (61.3) (61.6) (61.7) Average tangible assets M $ 10,902.5 $ 10,790.1 $ 10,683.5 $ 10,920.2 $ 10,920.8 Return on average assets A/L 1.6% 1.5% 1.5% 1.3% 1.3% Core return on average tangible assets G/M 1.7% 1.6% 1.5% 1.4% 1.5% Tangible equity to tangible assets Shareholders' equity $ 824.2 $ 822.9 $ 802.4 $ 769.9 $ 741.0 Less: goodwill and intangible assets (90.9) (60.6) (61.4) (61.5) (61.4) Tangible total equity N 733.4 762.3 741.0 708.4 679.6 Less: preference shareholders' equity — — — — — Tangible common equity O 733.4 762.3 741.0 708.4 679.6 Total assets 10,988.2 10,779.2 10,578.4 10,678.7 10,943.6 Less: goodwill and intangible assets (90.9) (60.6) (61.4) (61.5) (61.4) Tangible assets P $ 10,897.4 $ 10,718.6 $ 10,517.0 $ 10,617.2 $ 10,882.2 Tangible common equity to tangible assets O/P 6.7% 7.1% 7.0% 6.7% 6.2% Tangible total equity to tangible assets N/P 6.7% 7.1% 7.0% 6.7% 6.2% Efficiency ratio Non-interest expenses $ 77.4 $ 80.4 $ 73.6 $ 75.3 $ 71.0 Less: Amortization of intangibles (1.1) (1.1) (1.0) (1.1) (1.0) Non-interest expenses before amortization of intangibles Q 76.3 79.3 72.6 74.2 70.0 Non-interest income 39.8 42.4 38.2 38.7 38.5 Net interest income before provision for credit losses 79.9 76.1 74.3 71.5 67.9 Net revenue before provision for credit losses and other gains/losses R $ 119.7 $ 118.4 $ 112.5 $ 110.2 $ 106.4 Efficiency ratio Q/R 63.8% 67.0% 64.5% 67.4% 65.7% Core efficiency ratio Non-interest expenses $ 77.4 $ 80.4 $ 73.6 $ 75.3 $ 71.0 Less: non-core expenses (E) (1.7) (1.9) (2.0) (1.4) (2.6) Less: amortization of intangibles (1.1) (1.1) (1.0) (1.1) (1.0) Core non-interest expenses before amortization of intangibles S 74.6 77.4 70.6 72.8 67.4 Net revenue before provision for credit losses and other gains/losses T 119.7 118.4 112.5 110.2 106.4 Core efficiency ratio S/T 62.3% 65.4% 62.8% 66.1% 63.2%

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