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 May, 2024Commission File Number:001-15014

SUN LIFE FINANCIAL INC.

(the “Company”)

(Translation of registrant’s name into English)

1 York Street, 31st Floor, Toronto, Ontario M5J 0B6

(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            Form 40-F    X

Exhibit

99.1    Shareholders’ Report

99.2    Certificates of the Chief Executive Officer and Chief Financial Officer pursuant to Canadian National Instrument 52-109 - Certification of Disclosure in Issuers’ Annual and Interim Filings

99.3    Earnings Coverage Ratio pursuant to Canadian National Instrument 44-102 - Shelf Distributions

SIGNATURE

Pursuant to the requirement 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.

Sun Life Financial Inc.

                        (Registrant)

Date: May 9, 2024                By    /s/ “Tracie Allan”            

                            Tracie Allan

    Assistant Vice-President & Managing Counsel

Exhibit 99.1

Exhibit 99.2

Exhibit 99.3

EX-99.1

CANADIAN RESIDENTS PARTICIPATING IN THE SHARE ACCOUNT

Shareholders holding shares in the Canadian Share Account can sell their shares for $15 plus 3 cents per share.

For more information call TSX Trust Company at 1 877 224-1760.

Sun Life Reports First Quarter 2024 Results

Sun Life Financial Inc. ("SLF Inc."), its subsidiaries and, where applicable, its joint ventures and associates are collectively referred to as "the Company", "Sun Life", "we", "our", and "us". We manage our operations and report our financial results in five business segments: Canada, United States ("U.S."), Asset Management, Asia, and Corporate. The information in this document is based on the unaudited interim financial results of SLF Inc. for the period ended March 31, 2024 and should be read in conjunction with the interim management's discussion and analysis ("MD&A") and our unaudited interim consolidated financial statements and accompanying notes ("Interim Consolidated Financial Statements") for the period ended March 31, 2024, prepared in accordance with International Financial Reporting Standards ("IFRS"). We report certain financial information using non-IFRS financial measures. For more details, refer to the Non-IFRS Financial Measures section in this document. Additional information relating to SLF Inc. is available on www.sunlife.com under Investors – Financial results and reports, on the SEDAR+ website at www.sedarplus.ca, and on the U.S. Securities and Exchange Commission's website at www.sec.gov. Reported net income (loss) refers to Common shareholders' net income (loss) determined in accordance with IFRS. Unless otherwise noted, all amounts are in Canadian dollars. Amounts in this document may be impacted by rounding. Certain 2023 results in the Drivers of Earnings and CSM Movement Analysis were refined to more accurately reflect how the business is managed.

TORONTO, ON - (May 9, 2024) - Sun Life Financial Inc.(TSX: SLF) (NYSE: SLF) announced its results for the first quarter ended
March 31, 2024.

•Underlying net income(1) of $875 million decreased $20 million or 2% from Q1'23; underlying ROE(1) was 16.0%.

◦Wealth & asset management underlying net income(1): $408 million, down$3 million or 1%.

◦Group - Health & Protection underlying net income(1): $280 million, down$23 million or 8%.

◦Individual - Protection underlying net income(1): $278 million, down$13 million or 4%.

◦Corporate expenses & other(1):$(91) million net loss, improved $19 million or 17%.

•Reported net income of $818 million increased $12 million or 1% from Q1'23; reported ROE(1)was 15.0%.

•Assets under management ("AUM")(1) of $1,470 billion increased $106 billion or 8% from Q1'23.

•Increase to common share dividend from $0.78 to $0.81 per share.

"In the first quarter, we delivered on our Client Impact strategy by advancing our asset management and insurance businesses with strong growth in insurance sales, CSM and AUM," said Kevin Strain, President and CEO of Sun Life. "Underlying earnings were affected by the sale of Sun Life UK, higher morbidity claims, and the end of the Public Health Emergency in the U.S. Our capital remains strong and this quarter, we announced a 4% increase to our shareholder dividend and expect to actively continue share buybacks in the second quarter.”

Financial and Operational Highlights

		Quarterly results
Profitability		Q1'24	Q1'23
	Underlying net income ($ millions)(1)	875	895
	Reported net income - Common shareholders ($ millions)	818	806
	Underlying EPS ($)(1)(2)	1.50	1.52
	Reported EPS ($)(2)	1.40	1.37
	Underlying return on equity ("ROE")(1)	16.0%	17.3%
	Reported ROE(1)	15.0%	15.6%
Growth		Q1'24	Q1'23
	Wealth sales & asset management gross flows ($ millions)(1)	46,898	46,349
	Group - Health & Protection sales ($ millions)(1)(3)	528	509
	Individual - Protection sales ($ millions)(1)	757	511
	Assets under management ("AUM") ($ billions)(1)	1,470	1,364
	New business Contractual Service Margin ("CSM") ($ millions)(1)	347	232
Financial Strength		Q1'24	Q1'23
	LICAT ratios (at period end)(4)
	Sun Life Financial Inc.	148%	148%
	Sun Life Assurance(5)	142%	144%
	Financial leverage ratio (at period end)(1)(6)	21.1%	23.2%

(1)Represents a non-IFRS financial measure. For more details, see the Non-IFRS Financial Measures section in this document and in the Q1'24 MD&A.

(2)All earnings per share ("EPS") measures refer to fully diluted EPS, unless otherwise stated.

(3)Prior period amounts related to U.S. Dental sales have been restated to reflect new information.

(4)Life Insurance Capital Adequacy Test ("LICAT") ratio. Our LICAT ratios are calculated in accordance with the OSFI-mandated guideline, Life Insurance Capital Adequacy Test.

(5)Sun Life Assurance Company of Canada ("Sun Life Assurance") is SLF Inc.'s principal operating life insurance subsidiary.

(6)The calculation for the financial leverage ratio includes the CSM balance (net of taxes) in the denominator. The CSM (net of taxes) was $9.9 billion as at March 31, 2024 (March 31, 2023 - $9.0 billion).

EARNINGS NEWS RELEASE        Sun Life Financial Inc.     First Quarter 2024    1

Financial and Operational Highlights - Quarterly Comparison (Q1'24 vs. Q1'23)

($ millions)	Q1'24
Underlying net income by business type(1)(2):	Sun Life	Asset Management	Canada	U.S.	Asia	Corporate
Wealth & asset management	408	282	109	—	17	—
Group - Health & Protection	280	—	114	166	—	—
Individual - Protection	278	—	87	23	168	—
Corporate expenses & other	(91)	—	—	—	(8)	(83)
Underlying net income(1)	875	282	310	189	177	(83)
Reported net income - Common shareholders	818	284	290	97	235	(88)
Change in underlying net income (% year-over-year)	(2)%	nm(3)	(2)%	(20)%	26%	nm(3)
Change in reported net income (% year-over-year)	1%	12%	(12)%	(42)%	75%	nm(3)
Wealth sales & asset management gross flows(1)	46,898	40,718	4,079	—	2,101	—
Group - Health & Protection sales(1)	528	—	311	191	26	—
Individual - Protection sales(1)	757	—	130	—	627	—
Change in wealth sales & asset management gross flows (% year-over-year)	1%	nm(3)	32%	—	(14)%	—
Change in group sales (% year-over-year)	4%	—	114%	(44)%	4%	—
Change in individual sales (% year-over-year)	48%	—	(4)%	—	67%	—

(1)Represents a non-IFRS financial measure. For more details, see the Non-IFRS Financial Measures section in this document and in the Q1'24 MD&A.

(2)For more information about the business types in Sun Life's business groups, see section A - How We Report Our Results in the Q1'24 MD&A.

(3)Not meaningful.

Underlying net income(1) of $875 million decreased $20 million from prior year, driven by:

•Wealth & asset management(1) down$3 million: Higher fee income offset by higher expenses in Asset Management, as well as lower net seed investment income in SLC Management.

•Group - Health & Protection(1) down$23 million:Less favourable morbidity experience in U.S. medical stop-loss and lower results in U.S. Dental primarily reflecting the impact of Medicaid redeterminations following the end of the Public Health Emergency, partially offset by strong revenue growth in U.S. Group Benefits, and business growth and improved disability experience in Canada.

•Individual - Protection(1) down$13 million: Lower earnings due to the sale of Sun Life UK(2) partially offset by business growth in Asia.

•Corporate expenses & other(1)$19 million decrease in net loss driven by lower financing costs.

Reported net income of $818 million increased $12 million from prior year, driven by:

•Gains on partial sale of ABSLAMC(3) and the early termination of a distribution agreement in Asset Management; largely offset by

•The prior year gain on sale of the sponsored markets business in Canada(4);

•Fair value changes in management's ownership of MFS(5) shares; and

•The decrease in underlying net income.

•Unfavourable real estate experience(6) was mostly offset by favourable interest rate impacts.

Underlying ROE was 16.0% and reported ROE was 15.0% (Q1'23 - 17.3% and 15.6%, respectively). SLF Inc. ended the quarter with a LICAT ratio of 148%.

(1)Refer to section C - Profitability in the Q1'24 MD&A for more information on notable items attributable to reported and underlying net income items and the Non-IFRS Financial Measures in this document for a reconciliation between reported net income and underlying net income. For more information about the business types in Sun Life's operating segments/business groups, see section A - How We Report Our Results in the Q1'24 MD&A.

(2)On April 3, 2023 we completed the sale of SLF of Canada UK Limited to Phoenix Group Holdings plc ("the sale of Sun Life UK"). For additional information, refer to Note 3 of our 2023 Annual Consolidated Financial Statements.

(3)To meet regulatory obligations, on March 21, 2024, we completed the sale of 6.3% of our ownership interest in Aditya Birla Sun Life AMC Limited (“partial sale of ABSLAMC”), generating a gain of $84 million. As a result of the transaction, our ownership interest in ABSLAMC was reduced from 36.5% to 30.2% for gross proceeds of $136 million.

(4)On February 1, 2023, we completed the sale of the sponsored markets business from Sun Life Assurance, a wholly owned subsidiary of SLF Inc., to Canadian Premier Life Insurance Company (re-branded to Securian Canada) ("sale of the sponsored markets business").

(5)MFS Investment Management ("MFS").

(6)Real estate experience reflects the difference between the actual value of real estate investments compared to management's longer-term expected returns supporting insurance contract liabilities ("real estate experience").

2    Sun Life Financial Inc.     First Quarter 2024        EARNINGS NEWS RELEASE

Business Group Highlights

Asset Management: A global leader in both public and alternative asset classes through MFS and SLC Management

Asset Management underlying net income of $282 million was in line with prior year, driven by:

•MFS in line with prior year (up US$1 million): Higher fee income from average net assets ("ANA") mostly offset by higher expenses, which include fair value changes in management's participation in MFS shares. The MFS pre-tax net operating profit margin(1) improved to 37.2% for Q1'24 from 36.8% in the prior year due to higher ANA.

•SLC Management in line with prior year: Higher-fee related earnings offset by lower net seed investment income.Fee-related earnings(1) increased 1% driven by higher AUM, reflecting capital raising and deployment across the platform, offset by higher expenses. Fee-related earnings margin(1) was 23.9% for Q1'24, compared to 24.3% in the prior year.

Reported net income of $284 million increased $30 million or 12% from prior year, driven by a gain on the early termination of a distribution agreement partially offset by fair value changes in management's ownership of MFS shares.

Asset Management ended Q1'24 with $1,079 billion of AUM, consisting of $852 billion (US$630 billion) in MFS and $226 billion in SLC Management. Total Asset Management net outflows of $10.1 billion in Q1'24 reflected MFS net outflows of $11.7 billion (US$8.6 billion) partially offset by SLC Management net inflows of $1.5 billion.

During the first quarter, MFS celebrated its centennial anniversary. With a purpose of creating long-term value responsibly, MFS has been driven by a conviction to always do what’s best for Clients, staying true to its active investment approach, core values and collaborative culture.

Our Asset Management businesses advanced their sustainable investing objectives with BentallGreenOak ("BGO") completing Ontario's first all-electric net zero carbon industrial building, owned by Sun Life. BGO was also awarded the 2024 ENERGY STAR® Partner of The Year – Sustained Excellence Award by the U.S. Environmental Protection Agency and the U.S. Department of Energy for the 14th consecutive year. lnfraRed Capital Partners ("lnfraRed") continues to invest in assets helping to build a sustainable future, completing the acquisition of two operating, utility-scale renewable energy assets in the U.S. from Shell Windenergy Inc.(2) and Savion Equity LLC(3).

Canada: A leader in health, wealth, and insurance

Canada underlying net income of $310 million decreased $6 million from prior year, reflecting:

•Wealth & asset management down $5 million: Includes lower earnings on surplus.

•Group - Health & Protection up $19 million: Business growth and improved disability experience reflecting lower claims volumes.

•Individual - Protection down $20 million: Unfavourable mortality experience in the quarter.

•Lower earnings on surplus across all businesses primarily reflecting lower realized gains.

Reported net income of $290 million decreased $39 million or 12% from prior year, reflecting a prior year gain on sale of the sponsored markets business, partially offset by market-related impacts. The market-related impacts were primarily from interest rates, partially offset by real estate experience.

Canada's sales(4):

•Wealth sales & asset management gross flows of $4 billion were up 32%, driven by higher mutual fund sales in Individual Wealth and higher defined benefit solution and defined contribution sales in Group Retirement Services ("GRS").

•Group - Health & Protection sales of $311 million were up 114%, driven by higher large case sales.

•Individual - Protection sales of$130 million weredown 4%, reflecting lower participating whole life insurance sales.

We remain committed to developing targeted solutions for Clients living with chronic conditions such as diabetes to improve their insurability and health outcomes. In Q1, we launched our Diabetes Care Program, a free service for plan members as part of Lumino HealthTM Pharmacy, an online pharmacy app. The Diabetes Support Team, consisting of pharmacists, physicians, and registered dieticians, provides proactive support, coaching, and education. The personalized plans, support and advice help plan members to manage their diabetes.

In Q1, defined benefit solutions ("DBS") hit a milestone reaching $20 billion in cumulative sales since launching the business in 2008. We continue to maintain our leadership position in the pension risk transfer market by ranking first in sales for 16 years in a row(5). DBS has played a pivotal role in the market through a Client-focused approach and the creation of innovative solutions. This allows pension plan sponsors to transfer risks to Sun Life so they can focus on their core businesses, while helping to ensure long-term retirement security for plan members. Currently, DBS provides over $1.25 billion in annual pension payments to over 125,000 Clients.

(1)Represents a non-IFRS financial measure. For more details, see the Non-IFRS Financial Measures section in this document and in the Q1'24 MD&A.

(2)Shell Windenergy Inc. is a subsidiary of Shell plc that develops and operates wind farms.

(3)Savion Equity LLC is a subsidiary of Shell plc that specializes in developing solar power and energy storage projects.

(4)Compared to the prior year.

(5)Life Insurance Marketing and Research Association ("LIMRA") market share as of Q4'23, on a year-to-date basis.

EARNINGS NEWS RELEASE        Sun Life Financial Inc.     First Quarter 2024    3

U.S.: A leader in health and benefits

U.S. underlying net income of US$141 million decreased US$35 million or 20% ($189 million decreased $48 million or 20%) from prior year, driven by:

•Group - Health & Protection down US$30 million:Lower Dental results primarily reflecting the impact of Medicaid redeterminations following the end of the Public Health Emergency, and lower Group Benefits results primarily reflecting less favourable morbidity experience in medical stop-loss as utilization normalizes partially offset by strong revenue growth and favourable disability experience.

•Individual - Protection downUS$5 million: The inclusion of the UK payout annuity business(1) was offset by unfavourable credit experience in the quarter.

Reported net income of US$71 million decreased US$54 million or 43% ($97 million decreased $71 million or 42%) from prior year, reflecting the decrease in underlying net income and market-related impacts largely from real estate experience partially offset by favourable interest rate impacts.

U.S. group sales of US$142 million were down US$108 million or 43% ($191 million, down $148 million or 44%), reflecting comparable Group Benefits sales and lower Medicaid and commercial sales in Dental driven by large institutional sales in the prior year.

We continue to expand our capabilities and advance our strategy to help our members access the health care and coverage they need. In Employee Benefits, we are now offering Health Navigator, powered by PinnacleCare, to the large employer group benefits market. This personal health care navigation and advisory service helps members get the right medical diagnoses, doctors and treatments for their specific needs and helps improve health and productivity outcomes for employers.

We are also leveraging our expertise on leave, absence management, and return-to-work services to offer Family Leave Insurance (“FLI”) in Alabama, Arkansas, Florida, Tennessee, and Texas. We are the first major group benefits provider to offer FLI in these states, broadening members’ access to paid leave to care for loved ones and giving employers the option to provide a valuable benefit to their employees more easily.

Asia: A regional leader focused on fast-growing markets

Asia underlying net income of $177 million increased $36 million or 26% from prior year, driven by:

•Wealth & asset management up $2 million.

•Individual - Protection up $38 million:Good sales momentum and in-force business growth, higher earnings on surplus, and favourable mortality experience in the quarter, partially offset by higher expenses reflecting volume growth and continued investments in the business.

•Regional office expenses & other $(4) million increased net loss from higher expenses.

Reported net income of $235 million increased $101 million or 75% from prior year, driven by a gain on partial sale of ABSLAMC and the increase in underlying net income, partially offset by market-related impacts. The market-related impacts were primarily from interest rates and lower equity markets in China, partially offset by real estate experience.

Asia's sales(2):

•Individual sales of $627 million were up 67%, primarily driven by higher sales in Hong Kong reflecting expanded distribution capabilities, partially offset by lower sales in China, Vietnam and India reflecting industry and market conditions.

•Wealth sales & asset management gross flows of $2 billion were down 14%, reflecting lower money market fund sales in the Philippines, lower Mandatory Provident Fund ("MPF") sales in Hong Kong, and lower sales in India primarily from fixed income funds.

New business CSM of $230 million in Q1'24 was up from $102 million in the prior year, primarily driven by sales in Hong Kong.

We are committed to delivering shareholder value, including building and realizing value through strategic investments. To meet regulatory obligations, in March, we sold 6.3% of our ownership interest in Aditya Birla Sun Life AMC Limited (BSE: ABSLAMC.BO and NSE: ABSLAMC.NS), unlocking value in our investment through generating a $98 million (post-tax $84 million) gain. Since the Initial Public Offering in 2021, Sun Life has generated gains of over $450 million (post-tax gains of over $350 million), while still retaining 30.2% ownership of the listed entity following the most recent sell-down. This highlights the value of ABSLAMC, reflecting a strong track record of performance, with an attractive product mix including fixed income, equities and alternatives, and a fast-growing retail presence in India.

We continue to build on our Purpose to help Clients achieve lifetime financial security and live healthier lives. Our focus on making a difference in the lives of our Clients was recognized by our Platinum award(3) for the most trusted brand in the life insurance industry in the Philippines. This is Sun Life Philippines’ 15th year in a row to be recognized in the Trusted Brand Awards.

Corporate

Corporate underlying net loss was $83 million compared to underlying net loss of $81 million in the prior year, reflecting lower earnings due to the sale of Sun Life UK(1) partially offset by lower financing costs.

Reported net loss was $88 million compared to reported net loss of $79 million in the prior year, reflecting market-related impacts(1).

(1)On April 3, 2023, we completed the sale of SLF of Canada UK Limited to Phoenix Group Holdings plc ("the sale of Sun Life UK"). Under the agreement, we will retain our economic interest in the payout annuities business through a reinsurance treaty, which, effective Q2'23 is recorded in In-force Management within the U.S. business group. For additional information, refer to Note 3 of our 2023 Annual Consolidated Financial Statements. Prior year results include market-related gains from Sun Life UK in reported net income within the Corporate business group.

(2)Compared to the prior year.

(3)Trusted Brand Awards.

4    Sun Life Financial Inc.     First Quarter 2024        EARNINGS NEWS RELEASE

Sun Life Financial Inc.

Management's Discussion and Analysis

For the period ended March 31, 2024

Dated May 9, 2024

Table of Contents
A.	How We Report Our Results	6
B.	Financial Summary	8
C.	Profitability	9
D.	Growth	11
E.	Contractual Service Margin	13
F.	Financial Strength	14
G.	Performance by Business Segment	16
	1. Asset Management	17
	2. Canada	19
	3. U.S.	20
	4. Asia	21
	5. Corporate	22
H.	Investments	23
I.	Risk Management	26
J.	Additional Financial Disclosure	32
K.	Legal and Regulatory Proceedings	36
L.	Changes in Accounting Policies	36
M.	Internal Control Over Financial Reporting	36
N.	Non-IFRS Financial Measures	37
O.	Forward-looking Statements	46

MANAGEMENT'S DISCUSSION AND ANALYSIS         Sun Life Financial Inc. First Quarter 2024 5

About Sun Life

Sun Life is a leading international financial services organization providing asset management, wealth, insurance and health solutions to individual and institutional Clients. Sun Life has operations in a number of markets worldwide, including Canada, the United States, the United Kingdom, Ireland, Hong Kong, the Philippines, Japan, Indonesia, India, China, Australia, Singapore, Vietnam, Malaysia and Bermuda. As of March 31, 2024, Sun Life had total assets under management ("AUM") of $1.47 trillion. For more information please visit www.sunlife.com.

Sun Life Financial Inc. trades on the Toronto (TSX), New York (NYSE) and Philippine (PSE) stock exchanges under the ticker symbol SLF.

A. How We Report Our Results

Sun Life Financial Inc. ("SLF Inc."), its subsidiaries and, where applicable, its joint ventures and associates are collectively referred to as "the Company", "Sun Life", "we", "our", and "us". We manage our operations and report our financial results in five business segments: Canada, United States ("U.S."), Asset Management, Asia, and Corporate. Information concerning these segments is included in our annual and interim consolidated financial statements and accompanying notes ("Annual Consolidated Financial Statements" and "Interim Consolidated Financial Statements", respectively, and "Consolidated Financial Statements" collectively) and interim and annual management's discussion and analysis ("MD&A"). We prepare our unaudited Interim Consolidated Financial Statements using International Financial Reporting Standards ("IFRS"), the accounting requirements of the Office of the Superintendent of Financial Institutions ("OSFI") and in accordance with the International Accounting Standard ("IAS") 34 Interim Financial Reporting. Reported net income (loss) refers to Common shareholders' net income (loss) determined in accordance with IFRS.

Unless otherwise noted, all amounts are in Canadian dollars. Amounts in this document may be impacted by rounding. Certain 2023 results in the Drivers of Earnings and CSM Movement Analysis were refined to more accurately reflect how the business is managed.

Underlying net income by Business Types

Sun Life has a diversified mix of businesses and our earnings by business type supports the analysis of our results:

•Wealth & asset management: Sun Life’s wealth & asset management businesses generate fee income and/or spread on investment products.

•Group - Health & Protection: Group businesses provide health and protection benefits to employer and government plan members. The products generally have shorter-term coverage periods, and more frequent repricing. The revenues are driven by premiums for coverage provided as well as fee-based earnings (i.e., Administrative Services Only plans, and dental fees).

•Individual - Protection: Generally, individual protection businesses have a longer-term profitability profile and are more sensitive to experience trends. The premiums include a margin for providing protection and are invested to earn a return over the expected amounts required to fulfill insurance liabilities.

The following provides an overview of the business types in Sun Life's business segments/business groups:

6 Sun Life Financial Inc. First Quarter 2024         MANAGEMENT'S DISCUSSION AND ANALYSIS

1. Use of Non-IFRS Financial Measures

We report certain financial information using non-IFRS financial measures, as we believe that these measures provide information that is useful to investors in understanding our performance and facilitate a comparison of our quarterly and full year results from period to period. These non-IFRS financial measures do not have any standardized meaning and may not be comparable with similar measures used by other companies. For certain non-IFRS financial measures, there are no directly comparable amounts under IFRS. These non-IFRS financial measures should not be viewed in isolation from or as alternatives to measures of financial performance determined in accordance with IFRS. Additional information concerning non-IFRS financial measures and, if applicable, reconciliations to the closest IFRS measures are available in section N - Non-IFRS Financial Measures in this document and the Supplementary Financial Information package on www.sunlife.com under Investors - Financial results and reports.

2. Forward-looking Statements

Certain statements in this document are forward-looking statements within the meaning of certain securities laws, including the "safe harbour" provisions of the United States Private Securities Litigation Reform Act of 1995 and applicable Canadian securities legislation. Additional information concerning forward-looking statements and important risk factors that could cause our assumptions, estimates, expectations and projections to be inaccurate and our actual results or events to differ materially from those expressed in or implied by such forward-looking statements can be found in section O - Forward-looking Statements in this document.

3. Additional Information

Additional information about SLF Inc. can be found in the Consolidated Financial Statements, the annual and interim MD&A, and SLF Inc.'s Annual Information Form ("AIF") for the year ended December 31, 2023. These documents are filed with securities regulators in Canada and are available at www.sedarplus.ca. SLF Inc.'s Annual Consolidated Financial Statements, annual MD&A and AIF are filed with the United States Securities and Exchange Commission ("SEC") in SLF Inc.'s annual report on Form 40-F and SLF Inc.'s interim MD&A and Interim Consolidated Financial Statements are furnished to the SEC on Form 6-Ks and are available at www.sec.gov.

MANAGEMENT'S DISCUSSION AND ANALYSIS         Sun Life Financial Inc. First Quarter 2024 7

B. Financial Summary

($ millions, unless otherwise noted)		Quarterly results
Profitability		Q1'24	Q4'23	Q1'23
	Net income (loss)
	Underlying net income (loss)(1)	875	983	895
	Reported net income (loss) - Common shareholders	818	749	806
	Diluted earnings per share ("EPS") ($)
	Underlying EPS (diluted)(1)	1.50	1.68	1.52
	Reported EPS (diluted)	1.40	1.28	1.37
	Return on equity ("ROE") (%)
	Underlying ROE(1)	16.0%	18.4%	17.3%
	Reported ROE(1)	15.0%	14.0%	15.6%
Growth		Q1'24	Q4'23	Q1'23
	Sales
	Wealth sales & asset management gross flows(1)	46,898	45,750	46,349
	Group - Health & Protection sales(1)(2)	528	1,459	509
	Individual - Protection sales(1)	757	707	511
	Total AUM ($ billions)(1)	1,470.1	1,399.6	1,363.6
	New business Contractual Service Margin ("CSM")(1)	347	381	232
Financial Strength		Q1'24	Q4'23	Q1'23
	LICAT ratios(3)
	Sun Life Financial Inc.	148%	149%	148%
	Sun Life Assurance(4)	142%	141%	144%
	Financial leverage ratio(1)(5)	21.1%	21.5%	23.2%
	Book value per common share ($)	37.41	36.51	35.34
	Weighted average common shares outstanding for basic EPS (millions)	584	584	587
	Closing common shares outstanding (millions)	583	585	587

(1)Represents a non-IFRS financial measure. For more details, see section N - Non-IFRS Financial Measures in this document.

(2)Prior period amounts related to U.S. Dental sales have been restated to reflect new information.

(3)Life Insurance Capital Adequacy Test ("LICAT") ratio. Our LICAT ratios are calculated in accordance with the OSFI-mandated guideline, Life Insurance Capital Adequacy Test.

(4)Sun Life Assurance is SLF Inc.’s principal operating life insurance subsidiary.

(5)The calculation for the financial leverage ratio includes the CSM balance (net of taxes) in the denominator. The CSM (net of taxes) was $9.9 billion as at March 31, 2024 (December 31, 2023 - $9.6 billion; March 31, 2023 - $9.0 billion).

8 Sun Life Financial Inc. First Quarter 2024         MANAGEMENT'S DISCUSSION AND ANALYSIS

C. Profitability

The following table reconciles our Common shareholders' net income ("reported net income") and underlying net income. All factors discussed in this document that impact underlying net income are also applicable to reported net income. Certain adjustments and notable items also impact the CSM, such as mortality experience and assumption changes; see section E - Contractual Service Margin in this document for more information.

	Quarterly results
($ millions, after-tax)	Q1'24	Q4'23	Q1'23
Underlying net income by business type(1):
Wealth & asset management	408	439	411
Group - Health & Protection	280	365	303
Individual - Protection	278	284	291
Corporate expenses & other	(91)	(105)	(110)
Underlying net income(1)	875	983	895
Add: Market-related impacts	(70)	(193)	(64)
Assumption changes and management actions ("ACMA")	(7)	(1)	(5)
Other adjustments	20	(40)	(20)
Reported net income - Common shareholders	818	749	806
Underlying ROE(1)	16.0%	18.4%	17.3%
Reported ROE(1)	15.0%	14.0%	15.6%
Notable items attributable to reported and underlying net income(1):
Mortality	(5)	(5)	(26)
Morbidity	3	91	61
Lapse and other policyholder behaviour ("policyholder behaviour")	(8)	(11)	(8)
Expenses	(12)	(26)	(5)
Credit(2)	(21)	(18)	(6)
Other(3)	34	(2)	22

(1)Represents a non-IFRS financial measure. For more details, see section N - Non-IFRS Financial Measures in this document. For more information about business types in Sun Life's business groups, see section A - How We Report Our Results in this document.

(2)Credit includes rating changes on assets measured at Fair value through profit or loss ("FVTPL"), and the Expected credit loss ("ECL") impact for assets measured at Fair value through other comprehensive income ("FVOCI").

(3)Other notable items are recorded in Net Insurance Service Result and Net Investment Result in the Drivers of Earnings analysis. For more details, see section N - Non-IFRS Financial Measures in this document.

Quarterly Comparison - Q1'24 vs. Q1'23

Underlying net income(1) of $875 milliondecreased $20 million from prior year, driven by:

•Wealth & asset management(1) down$3 million: Higher fee income offset by higher expenses in Asset Management, as well as lower net seed investment income in SLC Management.

•Group - Health & Protection(1) down$23 million: Less favourable morbidity experience in U.S. medical stop-loss and lower results in U.S. Dental primarily reflecting the impact of Medicaid redeterminations following the end of the Public Health Emergency, partially offset by strong revenue growth in U.S. Group Benefits, and business growth and improved disability experience in Canada.

•Individual - Protection(1) down$13 million: Lower earnings due to the sale of Sun Life UK(2) partially offset by business growth in Asia.

•Corporate expenses & other(1) $19 million decrease in net loss driven by lower financing costs.

Reported net income of $818 million increased $12 million from prior year, driven by:

•Gains on partial sale of ABSLAMC(3) and the early termination of a distribution agreement in Asset Management; largely offset by

•The prior year gain on sale of the sponsored markets business in Canada(4);

•Fair value changes in management's ownership of MFS(5) shares; and

•The decrease in underlying net income.

•Unfavourable real estate experience(6) was mostly offset by favourable interest rate impacts.

(1)Refer to section N - Non-IFRS Financial Measures in this document for a reconciliation between reported net income and underlying net income.

(2)On April 3, 2023 we completed the sale of SLF of Canada UK Limited to Phoenix Group Holdings plc ("the sale of Sun Life UK"). For additional information, refer to Note 3 of our 2023 Annual Consolidated Financial Statements.

(3)To meet regulatory obligations, on March 21, 2024, we completed the sale of 6.3% of our ownership interest in Aditya Birla Sun Life AMC Limited (“partial sale of ABSLAMC”), generating a gain of $84 million. As a result of the transaction, our ownership interest in ABSLAMC was reduced from 36.5% to 30.2% for gross proceeds of $136 million.

(4)On February 1, 2023, we completed the sale of the sponsored markets business from Sun Life Assurance, a wholly owned subsidiary of SLF Inc., to Canadian Premier Life Insurance Company (re-branded to Securian Canada) ("sale of the sponsored markets business").

(5)MFS Investment Management ("MFS").

(6)Real estate experience reflects the difference between the actual value of real estate investments compared to management's longer-term expected returns supporting insurance contract liabilities ("real estate experience").

MANAGEMENT'S DISCUSSION AND ANALYSIS         Sun Life Financial Inc. First Quarter 2024 9

Foreign exchange translation led to a decrease of $4 million and $2 million in underlying net income and reported net income, respectively.

Underlying ROE was 16.0% and reported ROE was 15.0% (Q1'23 - 17.3% and 15.6%, respectively).

1.Market-related impacts

Market-related impacts represent the difference between actual versus expected market movements. Market-related impacts resulted in a decrease of $70 million to reported net income, primarily driven by real estate experience, partially offset by favourable interest rate impacts.

2.Assumption changes and management actions

The net impact of assumption changes and management actions was a decrease of $7 million to reported net income and includes methods and assumptions changes on insurance contracts as well as related impacts. These included various small enhancements.

3.Other adjustments

Other adjustments increased reported net income by $20 million, driven by gains on the partial sale of ABSLAMC and the early termination of a distribution agreement in Asset Management, largely offset by DentaQuest integration costs and amortization of acquired intangible assets, and SLC Management's acquisition-related liabilities(1).

4.Experience-related items

In the first quarter of 2024, notable experience items included:

•Unfavourable morbidity experience in U.S. Dental was mostly offset by favourable morbidity experience in U.S. group disability and medical stop-loss;

•Unfavourable expense experience largely in U.S. Dental;

•Unfavourable credit experience largely in Canada and the U.S.; and

•Other experience was favourable primarily from the U.S., Asia, and Canada.

5.Income taxes

The statutory tax rate is impacted by various tax items, such as lower taxes on income subject to tax in foreign jurisdictions, tax-exempt investment income, and other sustainable tax benefits.

The Pillar Two global minimum tax rules apply to us effective January 1, 2024 and have been substantively enacted in several jurisdictions in which we operate, including the UK, Ireland, Luxembourg and Vietnam, however the rules are not yet substantively enacted in Canada. The Pillar Two legislation is expected to increase the effective tax rate on underlying net income by approximately one to two percentage points. For additional information, refer to Note 9 of our Interim Consolidated Financial Statements for the period ended March 31, 2024.

The Q1'24 effective income tax rate(2) on underlying net income and reported net income was 16.2% and 21.8% respectively.

6.Impacts of foreign exchange translation

Foreign exchange translation led to a decrease of $4 million and $2 million in underlying net income and reported net income, respectively.

(1)Amounts relate to acquisition costs for our SLC Management affiliates, BentallGreenOak, InfraRed Capital Partners, Crescent Capital Group LP and Advisors Asset Management Inc., which include the unwinding of the discount for Other financial liabilities.

(2)Our effective income tax rate on reported net income is calculated using Total income (loss) before income taxes, as detailed in Note 9 of our Interim Consolidated Financial Statements for the period ended March 31, 2024. Our effective income tax rate on underlying net income is calculated using pre-tax underlying net income, as detailed in section N - Non-IFRS Financial Measures in this document, and the associated income tax expense.

10 Sun Life Financial Inc. First Quarter 2024         MANAGEMENT'S DISCUSSION AND ANALYSIS

D. Growth

1. Sales and Gross Flows

	Quarterly results
($ millions)	Q1'24	Q4'23	Q1'23
Wealth sales &asset management gross flows by business segment(1)
Asset Management gross flows	40,718	38,322	40,829
Canada wealth sales & asset management gross flows	4,079	5,424	3,090
Asia wealth sales & asset management gross flows	2,101	2,004	2,430
Total wealth sales & asset management gross flows(1)	46,898	45,750	46,349
Group - Health & Protection salesby business segment(1)
Canada	311	174	145
U.S.(2)	191	1,269	339
Asia(3)	26	16	25
Total group sales(1)	528	1,459	509
Individual - Protection salesby business segment(1)
Canada	130	171	136
Asia	627	536	375
Total individual sales(1)	757	707	511
CSM - Impact of new insurance business ("New business CSM")(1)	347	381	232

(1)Represents a non-IFRS financial measure. For more details, see section N - Non-IFRS Financial Measures in this document.

(2)Prior period amounts related to U.S. Dental sales have been restated to reflect new information.

(3)In underlying net income by business type, Group businesses in Asia have been included with Individual - Protection. For more information about business types in Sun Life's business groups, see section A - How We Report Our Results in this document.

Total wealth sales & asset management gross flows increased $0.5 billion from prior year ($0.7 billion(1), excluding foreign exchange translation).

•Asset Management gross flows were in line with prior year, as higher gross flows in MFS were mostly offset by lower gross flows in SLC Management.

•Canada wealth sales & asset management gross flows increased $1.0 billion or 32%, driven by higher mutual fund sales in Individual Wealth and higher defined benefit solution and defined contribution sales in Group Retirement Services ("GRS").

•Asia wealth sales & asset management gross flows decreased $0.3 billion(1) or 13%(1), reflecting lower money market fund sales in the Philippines, lower Mandatory Provident Fund ("MPF") sales in Hong Kong, and lower sales in India primarily from fixed income funds.

Total group health & protection sales increased $19 million or 4% from prior year ($20 million(1) or 4%(1), excluding foreign exchange translation).

•Canada group sales increased $166 million or 114%, driven by higher large case sales.

•U.S. group sales decreased $147 million(1) or 43%(1), reflecting comparable Group Benefits sales and lower Medicaid and commercial sales in Dental driven by large institutional sales in the prior year.

Total individual protection sales increased $246 million or 48% from prior year ($252 million(1) or 49%(1), excluding foreign exchange translation).

•Canada individual sales decreased $6 million or 4%, reflecting lower participating whole life insurance sales.

•Asia individual sales increased $258 million(1) or 69%(1), primarily driven by higher sales in Hong Kong reflecting expanded distribution capabilities, partially offset by lower sales in China, Vietnam and India reflecting industry and market conditions.

New business CSM represents growth derived from sales activity in the period. The impact of new insurance business drove a $347 million increase in CSM, compared to new business CSM of $232 million in the prior year, primarily driven by strong sales in Asia in Hong Kong.

(1)This change excludes the impacts of foreign exchange translation. For more information about these non-IFRS financial measures, see section
N - Non-IFRS Financial Measures in this document.

MANAGEMENT'S DISCUSSION AND ANALYSIS         Sun Life Financial Inc. First Quarter 2024 11

2. Assets Under Management

AUM consists of general funds, the investments for segregated fund holders ("segregated funds") and third-party assets managed by the Company. Third-party AUM is comprised of institutional and managed funds, as well as other AUM related to our joint ventures.

	Quarterly results
($ millions)	Q1'24	Q4'23	Q3'23	Q2'23	Q1'23
Assets under management(1)
General fund assets	204,986	204,789	193,858	196,575	201,792
Segregated funds	135,541	128,452	119,988	123,366	131,033
Third-party assets under management(1)
Retail	606,320	567,657	544,946	557,093	543,847
Institutional, managed funds and other	563,773	537,424	518,129	527,344	528,897
Total third-party AUM(1)	1,170,093	1,105,081	1,063,075	1,084,437	1,072,744
Consolidation adjustments	(40,540)	(38,717)	(36,780)	(37,536)	(41,947)
Total assets under management(1)	1,470,080	1,399,605	1,340,141	1,366,842	1,363,622

(1)Represents a non-IFRS financial measure. See section N - Non-IFRS Financial Measures in this document.

AUM increased $70.5 billion or 5% from December 31, 2023, primarily driven by:

(i)favourable market movements on the value of segregated, retail, institutional and managed funds of $60.7 billion; and

(ii)an increase of $22.0 billion from foreign exchange translation (excluding the impacts of general fund assets); partially offset by

(iii)net outflows from segregated funds and third-party AUM of $10.5 billion; and

(iv)Client distributions of $1.5 billion.

Segregated fund and third-party AUM net outflows of $10.5 billion during the quarter were comprised of:

	Quarterly results
($ billions)	Q1'24	Q4'23	Q3'23	Q2'23	Q1'23
Net flows for Segregated fund and Third-party AUM:
MFS	(11.7)	(15.3)	(12.5)	(5.3)	(5.8)
SLC Management	1.5	3.9	3.4	2.0	3.2
Canada, Asia and other	(0.3)	—	(1.4)	1.1	(0.2)
Total net flows for Segregated fund and Third-party AUM	(10.5)	(11.4)	(10.5)	(2.2)	(2.8)

12 Sun Life Financial Inc. First Quarter 2024         MANAGEMENT'S DISCUSSION AND ANALYSIS

E. Contractual Service Margin

Contractual Service Margin represents a source of stored value for future insurance profits and qualifies as available capital for LICAT purposes. CSM is a component of insurance contract liabilities. The following table shows the change in CSM including its recognition into net income in the period, as well as the growth from new insurance sales activity.

	For the three months ended	For the full year ended
($ millions)	March 31, 2024	December 31, 2023
Beginning of Period	11,786	10,865
Impact of new insurance business(1)	347	1,253
Expected movements from asset returns & locked-in rates(1)	161	560
Insurance experience gains/losses(1)	21	67
CSM recognized for services provided	(269)	(919)
Organic CSM Movement(1)	260	961
Impact of markets & other(1)	15	(38)
Impact of change in assumptions(1)	(23)	364
Currency impact	103	(104)
Disposition(2)	—	(262)
Total CSM Movement	355	921
Contractual Service Margin, End of Period(3)	12,141	11,786

(1)Represents a non-IFRS financial measure. For more details, see section N - Non-IFRS Financial Measures in this document.

(2)Relates to the sale of Sun Life UK in Q2'23. For additional information, refer to Note 3 in our 2023 Annual Consolidated Financial Statements.

(3)Total company CSM presented above is comprised of CSM on Insurance contracts issued of $12,184 million (December 31, 2023 - $11,845 million), net of CSM Reinsurance contacts held of $43 million (December 31, 2023 - $59 million).

Total CSM ended Q1'24 at $12.1 billion, an increase of $0.4 billion or 3% in the quarter:

•Organic CSM movement was driven by the impact of new insurance business, reflecting strong sales in Asia.

•Favourable currency impacts in Asia and the U.S.

MANAGEMENT'S DISCUSSION AND ANALYSIS         Sun Life Financial Inc. First Quarter 2024 13

F. Financial Strength

	Quarterly results
($ millions, unless otherwise stated)	Q1'24	Q4'23	Q3'23	Q2'23	Q1'23
LICAT ratio(1)
Sun Life Financial Inc.	148%	149%	147%	148%	148%
Sun Life Assurance	142%	141%	138%	139%	144%
Capital
Subordinated debt(2)	6,179	6,178	6,177	6,679	6,677
Innovative capital instruments(3)	200	200	200	200	200
Equity in the participating account	510	457	397	354	303
Non-controlling interests	106	161	147	138	133
Preferred shares and other equity instruments	2,239	2,239	2,239	2,239	2,239
Common shareholders' equity(4)	21,790	21,343	20,984	20,461	20,735
Contractual Service Margin(5)	12,141	11,786	11,452	11,258	11,243
Total capital	43,165	42,364	41,596	41,329	41,530
Financial leverage ratio(5)(6)	21.1%	21.5%	21.8%	23.3%	23.2%
Dividend
Underlying dividend payout ratio(6)	52%	46%	47%	48%	47%
Dividends per common share ($)	0.780	0.780	0.750	0.750	0.720
Book value per common share ($)	37.41	36.51	35.91	34.86	35.34

(1)Our LICAT ratios are calculated in accordance with the OSFI-mandated guideline, Life Insurance Capital Adequacy Test.

(2)We are monitoring regulatory and market developments globally with respect to the interest rate benchmark reform (for more information refer to Note 2.A.ii in our 2023 Annual Consolidated Financial Statements), including as it relates to our legacy subordinated debt securities which reference the Canadian Dollar Offered Rate ("CDOR"). We may, if necessary at a future date, take appropriate action to reflect the replacement of CDOR.

(3)Innovative capital instruments consist of Sun Life ExchangEable Capital Securities ("SLEECS"), see section J - Capital and Liquidity Management in the 2023 Annual MD&A.

(4)Common shareholders’ equity is equal to Total shareholders’ equity less Preferred shares and other equity instruments.

(5)The calculation for the financial leverage ratio includes the CSM balance (net of taxes) in the denominator. The CSM (net of taxes) was $9.9 billion as at March 31, 2024 (December 31, 2023 - $9.6 billion; September 30, 2023 - $9.3 billion; June 30, 2023 - $9.1 billion; March 31, 2023 - $9.0 billion).

(6)Represents a non-IFRS financial measure. For more details, see section N - Non-IFRS Financial Measures in this document.

1. Life Insurance Capital Adequacy Test

The Office of the Superintendent of Financial Institutions has developed the regulatory capital framework referred to as the Life Insurance Capital Adequacy Test for Canada. LICAT measures the capital adequacy of an insurer using a risk-based approach and includes elements that contribute to financial strength through periods when an insurer is under stress as well as elements that contribute to policyholder and creditor protection wind-up.

SLF Inc. is a non-operating insurance company and is subject to the LICAT guideline. Sun Life Assurance, SLF Inc.'s principal operating life insurance subsidiary, is also subject to the LICAT guideline.

SLF Inc.'s LICAT ratio of 148% as at March 31, 2024 decreased one percentage point compared to December 31, 2023, driven by shareholder dividend payments and share buybacks, mostly offset by reported net income and M&A(1) activity.

Sun Life Assurance's LICAT ratio of 142% as at March 31, 2024 increased one percentage point compared to December 31, 2023, driven by reported net income and M&A activity, mostly offset by dividend payments to SLF Inc.

The Sun Life Assurance LICAT ratios in both periods are well above OSFI's supervisory ratio of 100% and regulatory minimum ratio of 90%.

(1)Mergers & Acquisitions ("M&A").

14 Sun Life Financial Inc. First Quarter 2024         MANAGEMENT'S DISCUSSION AND ANALYSIS

2. Capital

Our total capital consists of subordinated debt and other capital instruments, CSM, equity in the participating account and total shareholders' equity which includes common shareholders' equity, preferred shares and other equity instruments, and non-controlling interests. As at March 31, 2024, our total capital was $43.2 billion, an increase of $0.8 billion compared to December 31, 2023. The increase to total capital included reported net income of $818 million, an increase of $355 million in CSM, and the favourable impacts of foreign exchange translation of $292 million included in other comprehensive income (loss) ("OCI"). This was partially offset by the payment of $456 million of dividends on common shares of SLF Inc. ("common shares") and a decrease of $174 million from the repurchase and cancellation of common shares.

Our capital and liquidity positions remain strong with a LICAT ratio of 148% at SLF Inc., a financial leverage ratio of 21.1%(1) and $1.5 billion in cash and other liquid assets(1) as at March 31, 2024 in SLF Inc.(2) (December 31, 2023 - $1.6 billion).

Normal Course Issuer Bids

On August 29, 2023, SLF Inc. commenced its previously announced normal course issuer bid, which remains in effect until August 28, 2024, or such earlier date as SLF Inc. may determine, or until SLF Inc. has purchased an aggregate of 17 million common shares under the bid ("the NCIB"). During the first quarter of 2024, SLF Inc. purchased approximately 2.4 million common shares at a total cost of $174 million. All common shares purchased under SLF Inc.'s NCIB were subsequently cancelled. As at March 31, 2024, the total aggregate shares cancelled and associated cost under SLF Inc.'s NCIB were 5.2 million and $360 million, respectively.

(1)Represents a non-IFRS financial measure. For more details, see section N - Non-IFRS Financial Measures in this document.

(2)SLF Inc. (the ultimate parent company) and its wholly-owned holding companies.

MANAGEMENT'S DISCUSSION AND ANALYSIS         Sun Life Financial Inc. First Quarter 2024 15

G. Performance by Business Segment

	Quarterly results
($ millions)	Q1'24	Q4'23	Q1'23
Underlying net income (loss)(1)
Asset Management	282	331	282
Canada	310	350	316
U.S.	189	253	237
Asia	177	143	141
Corporate	(83)	(94)	(81)
Total underlying net income (loss)(1)	875	983	895
Reported net income (loss) - Common shareholders
Asset Management	284	297	254
Canada	290	348	329
U.S.	97	101	168
Asia	235	44	134
Corporate	(88)	(41)	(79)
Total reported net income (loss) - Common shareholders	818	749	806

(1)Represents a non-IFRS financial measure. For more details, see section N - Non-IFRS Financial Measures in this document.

All factors discussed in this document that impact our underlying net income are also applicable to reported net income.

16 Sun Life Financial Inc. First Quarter 2024         MANAGEMENT'S DISCUSSION AND ANALYSIS

1. Asset Management

	Quarterly results
Asset Management (C$ millions)	Q1'24	Q4'23	Q1'23
Underlying net income(1)	282	331	282
Add: Market-related impacts	1	(6)	(7)
Management's ownership of MFS shares	(12)	(11)	17
Acquisition, integration and restructuring(2)	(27)	(12)	(33)
Intangible asset amortization	(6)	(5)	(5)
Other	46	—	—
Reported net income - Common shareholders	284	297	254
Assets under management (C$ billions)(1)	1,078.6	1,015.9	988.6
Gross flows (C$ billions)(1)	40.7	38.3	40.8
Net flows (C$ billions)(1)	(10.1)	(11.4)	(2.5)
MFS(C$ millions)
Underlying net income(1)	254	261	254
Add: Management's ownership of MFS shares	(12)	(11)	17
Reported net income - Common shareholders	242	250	271
Assets under management (C$ billions)(1)	852.3	792.8	770.7
Gross flows (C$ billions)(1)	35.1	30.4	34.5
Net flows (C$ billions)(1)	(11.7)	(15.3)	(5.8)
MFS (US$ millions)
Underlying net income(1)	189	191	188
Add: Management's ownership of MFS shares	(9)	(8)	12
Reported net income - Common shareholders	180	183	200
Pre-tax net operating margin for MFS(1)	37.2%	39.4%	36.8%
Average net assets (US$ billions)(1)	609.3	566.6	566.3
Assets under management (US$ billions)(1)(3)	629.6	598.6	570.3
Gross flows (US$ billions)(1)	26.1	22.3	25.5
Net flows (US$ billions)(1)	(8.6)	(11.2)	(4.3)
Asset appreciation (depreciation) (US$ billions)	39.7	53.9	26.7
SLC Management (C$ millions)
Underlying net income(1)	28	70	28
Add: Market-related impacts	1	(6)	(7)
Acquisition, integration and restructuring(2)	(27)	(12)	(33)
Intangible asset amortization	(6)	(5)	(5)
Other	46	—	—
Reported net income (loss) - Common shareholders	42	47	(17)
Fee-related earnings(1)	69	92	68
Pre-tax fee-related earnings margin(1)(4)	23.9%	24.2%	24.3%
Pre-tax net operating margin(1)(4)	21.8%	21.8%	20.6%
Assets under management (C$ billions)(1)	226.3	223.1	217.8
Gross flows - AUM (C$ billions)(1)	5.6	8.0	6.3
Net flows - AUM (C$ billions)(1)	1.5	3.9	3.2
Fee earning assets under management ("FE AUM") (C$ billions)(1)	178.5	176.9	171.7
Gross flows - FE AUM (C$ billions)(1)	7.0	9.2	5.0
Net flows - FE AUM (C$ billions)(1)	2.9	5.6	2.5
Assets under administration ("AUA") (C$ billions)(1)	11.2	49.8	50.1
Capital raising (C$ billions)(1)	3.5	5.5	2.3
Deployment (C$ billions)(1)	5.6	7.3	6.0

(1)Represents a non-IFRS financial measure. For more details, see section N - Non-IFRS Financial Measures in this document.

(2)Amounts relate to acquisition costs for our SLC Management affiliates, BentallGreenOak, InfraRed Capital Partners, Crescent Capital Group LP and Advisors Asset Management, Inc, which include the unwinding of the discount for Other financial liabilities of $22 million in Q1'24 (Q4'23 - $24 million; Q1'23 - $20 million).

(3)Monthly information on AUM is provided by MFS in its Corporate Fact Sheet, which can be found at www.mfs.com/CorpFact. The Corporate Fact Sheet also provides MFS' U.S. GAAP assets and liabilities as at December 31, 2023.

(4)Based on a trailing 12-month basis. For more details, see section N - Non-IFRS Financial Measures in this document.

MANAGEMENT'S DISCUSSION AND ANALYSIS         Sun Life Financial Inc. First Quarter 2024 17

Profitability

Quarterly Comparison - Q1'24 vs. Q1'23

Asset Management underlying net income of $282 million was in line with prior year, driven by:

•MFS in line with prior year (up US$1 million): Higher fee income from average net assets ("ANA") mostly offset by higher expenses, which include fair value changes in management's participation in MFS shares. The MFS pre-tax net operating profit margin(1) improved to 37.2% for Q1'24 from 36.8% in the prior year due to higher ANA.

•SLC Management in line with prior year: Higher-fee related earnings offset by lower net seed investment income. Fee-related earnings(1) increased 1% driven by higher AUM, reflecting capital raising and deployment across the platform, offset by higher expenses. Fee-related earnings margin(1) and pre-tax net operating profit margin(1) for Q1'24 were 23.9% and 21.8%, respectively (Q1'23 - 24.3% and 20.6%, respectively).

Reported net income of $284 million increased $30 million or 12%, driven by a gain on the early termination of a distribution agreement partially offset by fair value changes in management's ownership of MFS shares.

Growth

Asset Management AUM of $1,078.6 billion increased $62.7 billion or 6% from December 31, 2023, driven by:

•Net asset value changes of $74.3 billion; partially offset by

•Net outflows of $10.1 billion; and

•Client distributions of $1.5 billion.

MFS' AUM increased US$31.1 billion or 5% from December 31, 2023, driven by:

•Increase in asset values from higher equity markets of US$39.7 billion, partially offset by net outflows of US$8.6 billion.

In Q1'24, 97%, 53%, and 50% of MFS' U.S. retail mutual fund assets ranked in the top half of their Morningstar categories based on ten-, five- and three-year performance, respectively.

SLC Management's AUM increased $3.2 billion from December 31, 2023, driven by:

•Asset value changes of $3.2 billion and net inflows of $1.5 billion, partially offset by Client distributions of $1.5 billion.

•Net inflows were comprised of capital raising and Client contributions, totaling $5.6 billion, partially offset by outflows of
$4.1 billion.

SLC Management's FE AUM increased $1.7 billion from December 31, 2023, driven by:

•Net inflows of $2.9 billion and asset value changes of $1.4 billion, partially offset by Client distributions of $2.7 billion.

•Net inflows were comprised of capital deployment and Client contributions, totaling $7.0 billion, partially offset by outflows of

$4.0 billion.

(1)Represents a non-IFRS financial measure. For more details, see section N - Non-IFRS Financial Measures in this document.

18 Sun Life Financial Inc. First Quarter 2024         MANAGEMENT'S DISCUSSION AND ANALYSIS

2. Canada

	Quarterly results
($ millions)	Q1'24	Q4'23	Q1'23
Wealth & asset management(1)	109	92	114
Group - Health & Protection(1)	114	159	95
Individual - Protection(1)	87	99	107
Underlying net income(1)	310	350	316
Add: Market-related impacts	(9)	(50)	(47)
ACMA	(5)	52	(2)
Acquisition, integration and restructuring	—	3	65
Intangible asset amortization	(6)	(7)	(3)
Reported net income - Common shareholders	290	348	329
Underlying ROE (%)(1)	19.2%	21.9%	18.3%
Reported ROE (%)(1)	17.9%	21.8%	19.1%
Wealth sales & asset management gross flows(1)	4,079	5,424	3,090
Group - Health & Protection sales(1)	311	174	145
Individual - Protection sales(1)	130	171	136

(1)Represents a non-IFRS financial measure. For more details, see section N - Non-IFRS Financial Measures in this document. For more information about business types in Sun Life's business groups, see section A - How We Report Our Results in this document.

Profitability

Quarterly Comparison - Q1'24 vs. Q1'23

Underlying net income of $310 million decreased $6 million from prior year, reflecting:

•Wealth & asset management down $5 million: Includes lower earnings on surplus.

•Group - Health & Protection up $19 million: Business growth and improved disability experience reflecting lower claims volumes.

•Individual - Protection down $20 million: Unfavourable mortality experience in the quarter.

•Lower earnings on surplus across all businesses primarily reflecting lower realized gains.

Reported net income of $290 million decreased $39 million or 12%, reflecting a prior year gain on sale of the sponsored markets business, partially offset by market-related impacts. The market-related impacts were primarily from interest rates, partially offset by real estate experience.

Growth

Quarterly Comparison - Q1'24 vs. Q1'23

Canada's sales included:

•Wealth sales & asset management gross flows of $4.1 billion were up 32%, driven by higher mutual fund sales in Individual Wealth and higher defined benefit solution and defined contribution sales in Group Retirement Services ("GRS").

•Group - Health & Protection sales of $311 million were up 114%, driven by higher large case sales.

•Individual - Protection sales of $130 million were down 4%, reflecting lower participating whole life insurance sales.

MANAGEMENT'S DISCUSSION AND ANALYSIS         Sun Life Financial Inc. First Quarter 2024 19

3. U.S.

	Quarterly results
(US$ millions)	Q1'24	Q4'23	Q1'23
Group - Health & Protection(1)	124	153	154
Individual - Protection(1)(2)	17	34	22
Underlying net income(1)	141	187	176
Add: Market-related impacts	(32)	(33)	(13)
ACMA	1	(40)	—
Acquisition, integration and restructuring(3)	(22)	(19)	(21)
Intangible asset amortization	(17)	(18)	(17)
Reported net income - Common shareholders	71	77	125
Underlying ROE (%)(1)	12.0%	16.1%	14.8%
Reported ROE (%)(1)	6.2%	6.7%	10.5%
After-tax profit margin for Group Benefits (%)(1)(4)	9.6%	10.0%	9.7%
Group - Health & Protection sales(1)(5)	142	932	250

(1)Represents a non-IFRS financial measure. For more details, see section N - Non-IFRS Financial Measures in this document. For more information about business types in Sun Life's business groups, see section A - How We Report Our Results in this document.

(2)Effective Q2'23, the UK payout annuities run-off business was moved from the Corporate business segment to the U.S. business segment upon the sale of Sun Life UK. For additional information, refer to Note 3 of our 2023 Annual Consolidated Financial Statements. Also, effective Q3'23 the run-off reinsurance business was moved from the Corporate business segment to the U.S. business segment.

(3)Includes integration costs associated with DentaQuest, acquired on June 1, 2022.

(4)Based on underlying net income, on a trailing four-quarter basis. For more details, see section N - Non-IFRS Financial Measures.

(5)Prior period amounts related to U.S. Dental sales have been restated to reflect new information.

Profitability

Quarterly Comparison - Q1'24 vs. Q1'23

Underlying net income of US$141 million decreased US$35 million or 20%, driven by:

•Group - Health & Protection down US$30 million:Lower Dental results primarily reflecting the impact of Medicaid redeterminations following the end of the Public Health Emergency, and lower Group Benefits results primarily reflecting less favourable morbidity experience in medical stop-loss as utilization normalizes partially offset by strong revenue growth and favourable disability experience.

•Individual - Protection downUS$5 million:The inclusion of the UK payout annuity business(1) was offset by unfavourable credit experience in the quarter.

Reported net income of US$71 million decreased US$54 million or 43%, reflecting the decrease in underlying net income and market-related impacts largely from real estate experience partially offset by favourable interest rate impacts.

Growth

Quarterly Comparison - Q1'24 vs. Q1'23

U.S. group sales of US$142 million were down US$108 million or 43%, reflecting comparable Group Benefits sales and lower Medicaid and commercial sales in Dental driven by large institutional sales in the prior year.

(1)On April 3, 2023, we completed the sale of SLF of Canada UK Limited to Phoenix Group Holdings plc ("the sale of Sun Life UK"). Under the agreement, we will retain our economic interest in the payout annuities business through a reinsurance treaty, which, effective Q2'23 is recorded in In-force Management within the U.S. business group. For additional information, refer to Note 3 of our 2023 Annual Consolidated Financial Statements.

20 Sun Life Financial Inc. First Quarter 2024         MANAGEMENT'S DISCUSSION AND ANALYSIS

4. Asia

	Quarterly results
($ millions)	Q1'24	Q4'23	Q1'23
Wealth & asset management(1)	17	16	15
Individual - Protection(1)(2)	168	138	130
Regional Office expenses & other(1)	(8)	(11)	(4)
Underlying net income (loss)(1)	177	143	141
Add: Market-related impacts	(15)	(142)	5
ACMA	(3)	(1)	(6)
Acquisition, integration and restructuring	78	(5)	(4)
Intangible asset amortization	(2)	(2)	(2)
Other	—	51	—
Reported net income - Common shareholders	235	44	134
Underlying ROE (%)(1)	13.0%	10.5%	10.4%
Reported ROE (%)(1)	17.3%	3.2%	9.9%
Wealth sales & asset management gross flows(1)	2,101	2,004	2,430
Individual - Protection sales(1)	627	536	375
Group - Health & Protection sales(1)(2)	26	16	25
New business CSM(1)	230	223	102

(1)Represents a non-IFRS financial measure. For more details, see section N - Non-IFRS Financial Measures in this document. For more information about business types in Sun Life's business groups, see section A - How We Report Our Results in this document.

(2)In underlying net income by business type, Group businesses in Asia have been included with Individual - Protection.

Profitability

Quarterly Comparison - Q1'24 vs. Q1'23

Underlying net income of $177 million increased $36 million or 26%, driven by:

•Wealth & asset management up $2 million.

•Individual - Protection up $38 million:Good sales momentum and in-force business growth, higher earnings on surplus, and favourable mortality experience in the quarter, partially offset by higher expenses reflecting volume growth and continued investments in the business.

•Regional office expenses & other $(4) million increased net loss from higher expenses.

Reported net income of $235 million increased $101 million or 75%, driven by a gain on partial sale of ABSLAMC and the increase in underlying net income, partially offset by market-related impacts. The market-related impacts were primarily from interest rates and lower equity markets in China, partially offset by real estate experience.

Growth

Quarterly Comparison - Q1'24 vs. Q1'23

Asia's sales included:

•Individual sales of $627 million were up 69%(1), primarily driven by higher sales in Hong Kong reflecting expanded distribution capabilities, partially offset by lower sales in China, Vietnam and India reflecting industry and market conditions.

•Wealth sales & asset management gross flows of $2.1 billion were down 13%(1), reflecting lower money market fund sales in the Philippines, lower Mandatory Provident Fund ("MPF") sales in Hong Kong, and lower sales in India primarily from fixed income funds.

New business CSM of $230 million in Q1'24, was up from $102 million in the prior year, primarily driven by sales in Hong Kong.

Partial Sale of Aditya Birla Sun Life AMC Limited

To meet regulatory obligations, on March 21, 2024, we completed the sale of 6.3% of our ownership interest in Aditya Birla Sun Life AMC Limited (BSE: ABSLAMC.BO and NSE: ABSLAMC.NS) (“ABSLAMC”), generating a $98 million (post-tax $84 million) gain in reported net income. As a result of the transaction, our ownership interest in ABSLAMC was reduced from 36.5% to 30.2% for gross proceeds of
$136 million. For additional information, refer to Note 3 in our Interim Consolidated Financial Statements for the period ended
March 31, 2024.

(1)This change excludes the impacts of foreign exchange translation. For more information about these non-IFRS financial measures, see section
N - Non-IFRS Financial Measures in this document.

MANAGEMENT'S DISCUSSION AND ANALYSIS         Sun Life Financial Inc. First Quarter 2024 21

5. Corporate

	Quarterly results
($ millions)	Q1'24	Q4'23	Q1'23
Individual - Protection(1)(2)	—	—	25
Corporate expenses & other(1)	(83)	(94)	(106)
Underlying net income (loss)(1)	(83)	(94)	(81)
Add: Market-related impacts	(5)	53	2
ACMA	—	—	3
Acquisition, integration and restructuring	—	—	(3)
Reported net income (loss) - Common shareholders	(88)	(41)	(79)

(1)Represents a non-IFRS financial measure. For more details, see section N - Non-IFRS Financial Measures in this document. For more information about business types in Sun Life's business groups, see section A - How We Report Our Results in this document.

(2)The UK annuities run-off businesses in Corporate has been included with Individual - Protection. Effective Q2'23, the UK annuities run-off business was moved from the Corporate business segment to the U.S. business segment upon the sale of Sun Life UK. For additional information, refer to Note 3 of our 2023 Annual Consolidated Financial Statements. Also, effective Q3'23 the run-off reinsurance business was moved from the Corporate business segment to the U.S. business segment.

Profitability

Quarterly Comparison - Q1'24 vs. Q1'23

Underlying net loss was $83 million compared to underlying net loss of $81 million in the prior year, reflecting lower earnings due to the sale of Sun Life UK(1) partially offset by lower financing costs.

Reported net loss was $88 million compared to reported net loss of $79 million in the prior year, reflecting market-related impacts(1).

(1)On April 3, 2023, we completed the sale of SLF of Canada UK Limited to Phoenix Group Holdings plc ("the sale of Sun Life UK"). Under the agreement, we will retain our economic interest in the payout annuities business through a reinsurance treaty, which, effective Q2'23 is recorded in In-force Management within the U.S. business group. For additional information, refer to Note 3 of our 2023 Annual Consolidated Financial Statements. Prior year results include market-related gains from Sun Life UK in reported net income.

22 Sun Life Financial Inc. First Quarter 2024         MANAGEMENT'S DISCUSSION AND ANALYSIS

H. Investments

Total general fund invested assets of $173.4 billion as at March 31, 2024, were down $0.9 billion from December 31, 2023. The decrease was primarily due to decline in net fair value from rising interest rates, partially offset by favourable impacts from foreign exchange translation. Our general fund invested assets are well-diversified across investment types, geographies and sectors with the majority of our portfolio invested in high quality fixed income assets.

The following table sets out the composition of our general fund invested assets:(1)

	March 31, 2024		December 31, 2023
($ millions)	Carrying value	% of Total carrying value	Carrying value	% of Total carrying value
Cash, cash equivalents and short-term securities	11,265	6%	13,173	8%
Debt securities	75,887	44%	75,493	43%
Equity securities	7,750	4%	7,138	4%
Mortgages and loans	54,798	32%	54,600	31%
Derivative assets	1,504	1%	2,183	1%
Other invested assets	12,656	7%	12,018	7%
Investment properties	9,555	6%	9,723	6%
Total invested assets	173,415	100%	174,328	100%

(1)The values and ratios presented are based on the fair value of the respective asset categories. Generally, the carrying values for invested assets are equal to their fair values. For invested assets supporting insurance contracts, in the event of default, if the amounts recovered are insufficient to satisfy the related insurance contract liability cash flows that the assets are intended to support, credit exposure may be greater than the carrying value of the assets.

1. Debt Securities

The debt securities portfolio is actively managed through a regular program of purchases and sales aimed at optimizing yield, quality, and liquidity, while ensuring that it remains well-diversified and duration-matched to insurance contract liabilities. As at March 31, 2024, with the exception of certain countries where we have business operations, including Canada, the United States and the Philippines, our exposure to debt securities from any single country did not exceed 1% of total invested assets.

Debt Securities by Geography

The carrying value of our debt securities by geographic location is presented in the following table.

	March 31, 2024				December 31, 2023
($ millions)	FVTPL debt securities	FVOCI debt securities	Total	% of Total	FVTPL debt securities	FVOCI debt securities	Total	% of Total
Debt securities by geography:
Canada	30,133	4,484	34,617	45%	30,180	4,339	34,519	46%
United States	20,264	6,082	26,346	35%	20,111	6,266	26,377	35%
Europe	3,905	1,538	5,443	7%	3,892	1,470	5,362	7%
Asia	5,695	930	6,625	9%	5,440	900	6,340	8%
Other	1,601	1,255	2,856	4%	1,557	1,338	2,895	4%
Total debt securities	61,598	14,289	75,887	100%	61,180	14,313	75,493	100%

Our gross unrealized losses as at March 31, 2024 for FVTPL and FVOCI debt securities were $7,219 million and $635 million, respectively (December 31, 2023 - $6,119 million and $615 million, respectively). The increase in gross unrealized losses was largely due to the impact from rising interest rates.

Debt Securities by Credit Rating

Debt securities with a credit rating of "A" or higher represented 72% of the total debt securities as at March 31, 2024, consistent with December 31, 2023. Debt securities with a credit rating of "BBB" or higher represented 99% of total debt securities as at March 31, 2024, consistent with December 31, 2023.

MANAGEMENT'S DISCUSSION AND ANALYSIS         Sun Life Financial Inc. First Quarter 2024 23

2. Mortgages and Loans

Our mortgage portfolio consisted almost entirely of first mortgages and our loan portfolio consisted of private placement loans.

Mortgages and Loans by Geography

The carrying value of mortgages and loans by geographic location is presented in the following table.(1)

	March 31, 2024			December 31, 2023
($ millions)	Mortgages	Loans	Total	Mortgages	Loans	Total
Canada	9,262	12,540	21,802	9,377	12,924	22,301
United States	4,605	17,400	22,005	4,609	17,086	21,695
Europe	167	7,672	7,839	159	7,420	7,579
Asia	—	655	655	—	550	550
Other	—	2,497	2,497	—	2,475	2,475
Total mortgages and loans	14,034	40,764	54,798	14,145	40,455	54,600
% of Total invested assets	8%	24%	32%	8%	23%	31%

(1)The geographic location for mortgages is based on the location of the property and for loans it is based on the country of the creditor's parent.

Mortgage Portfolio

As at March 31, 2024, we held $14.0 billion of mortgages (December 31, 2023 - $14.1 billion). Our mortgage portfolio consists entirely of commercial mortgages, as presented in the following table.

	March 31, 2024			December 31, 2023
($ millions)	Insured	Uninsured	Total	Insured	Uninsured	Total
Mortgages:
Retail	—	2,530	2,530	—	2,558	2,558
Office	—	2,724	2,724	—	2,754	2,754
Multi-family residential	3,480	1,251	4,731	3,583	1,256	4,839
Industrial	—	2,983	2,983	—	2,954	2,954
Other	430	636	1,066	440	600	1,040
Total mortgages	3,910	10,124	14,034	4,023	10,122	14,145
% of Total mortgages	28%	72%	100%	28%	72%	100%

Our mortgage portfolio consists entirely of commercial mortgages, including retail, office, multi-family, and industrial properties. As at
March 31, 2024, 34% of our commercial mortgage portfolio consisted of multi-family residential mortgages; there are no single-family residential mortgages. Our uninsured commercial portfolio had a weighted average loan-to-value ratio of approximately 52% as at
March 31, 2024 (December 31, 2023 - 52%). While we generally limit the maximum loan-to-value ratio to 75% at issuance, we may invest in mortgages with a higher loan-to-value ratio in Canada if the mortgage is insured by the Canada Mortgage and Housing Corporation ("CMHC"). The estimated weighted average debt service coverage for our uninsured commercial portfolio is 1.75 times. Of the $3.7 billion of multi-family residential mortgages in the Canadian commercial mortgage portfolio, 93% were insured by the CMHC.

As at March 31, 2024, we held $40.8 billion of loans (December 31, 2023 - $40.5 billion). Private placement loans provide diversification by type of loan, industry segment and borrower credit quality. The private placement loan portfolio consists of senior secured and unsecured loans to large- and mid-market corporate borrowers, securitized lease/loan obligations secured by a variety of assets, and project finance loans in sectors such as power and infrastructure.

As at March 31, 2024, our impaired mortgages and loans, net of allowances for losses, were $19 million (December 31, 2023 - $7 million).

3. Derivatives

The values associated with our derivative instruments are presented in the following table. Notional amounts serve as the basis for payments calculated under derivatives contracts and are generally not exchanged.

($ millions)	March 31, 2024	December 31, 2023
Net fair value asset (liability)	(199)	872
Total notional amount	71,796	70,421
Credit equivalent amount(1)	1,346	1,594
Risk-weighted credit equivalent amount(1)	30	34

(1)Amounts presented are net of collateral received.

The net fair value of derivatives was a liability of $199 million as at March 31, 2024 (December 31, 2023 - asset of $872 million). The decrease in net fair value was driven by a decrease in interest rate contracts primarily due to upward shifts in yield curves and decrease in foreign exchange contracts due to the depreciation of the Canadian dollar against U.S. dollar.

24 Sun Life Financial Inc. First Quarter 2024         MANAGEMENT'S DISCUSSION AND ANALYSIS

The total notional amount of our derivatives increased to $71.8 billion as at March 31, 2024 (December 31, 2023 - $70.4 billion). The change in notional amount is mainly attributable to an increase in interest rate contracts used for duration matching and foreign exchange contracts used for hedging foreign currency assets.

4. Investment Properties

As at March 31, 2024, we held $9.6 billion of investment properties (December 31, 2023 - $9.7 billion). The decrease in our investment property portfolio is predominantly driven by declines in market value, mainly in the office and U.S. industrial sectors, and property sales in the Canadian industrial sector.

Investment Properties by Type and Geography

	March 31, 2024
($ millions)	Office	Industrial	Retail	Multi-family residential	Other	Total	% of Total by Geography
Canada	1,531	3,241	920	1,472	683	7,847	82%
United States	463	976	231	35	3	1,708	18%
Total	1,994	4,217	1,151	1,507	686	9,555	100%
% of Total by Type	21%	44%	12%	16%	7%	100%
	December 31, 2023
($ millions)	Office	Industrial	Retail	Multi-family residential	Other	Total	% of Total by Geography
Canada	1,558	3,318	921	1,468	668	7,933	82%
United States	476	1,046	232	34	2	1,790	18%
Total	2,034	4,364	1,153	1,502	670	9,723	100%
% of Total by Type	21%	45%	12%	15%	7%	100%

5. Loss Allowance and Provision for Credit Losses

The balance of the total loss allowance was $84 million as at March 31, 2024 (December 31, 2023- $89 million) and the provision for credit losses decreased by $5 million for the three months ended March 31, 2024 (increased by $8 million for the three months ended
March 31, 2023).

MANAGEMENT'S DISCUSSION AND ANALYSIS         Sun Life Financial Inc. First Quarter 2024 25

I. Risk Management

We have established a Risk Management Framework to assist in identifying, measuring, managing, monitoring and reporting risks. The Risk

Management Framework covers all risks and these have been grouped into six major categories: market, insurance, credit, business and strategic, operational and liquidity risks. Through our enterprise risk management processes, we oversee the various risk factors identified in the Risk Management Framework and provide reports to senior management and to the Board Committees at least quarterly. Our enterprise risk management processes and risk factors are described in our 2023 Annual MD&A and AIF.

This section includes our disclosure on market risks and should be read in conjunction with our unaudited Interim Consolidated Financial Statements for the quarter ended March 31, 2024. When referring to segregated funds in this section, it is inclusive of segregated fund guarantees, variable annuities and investment products.

Equity Risk

Equity risk is the potential for financial loss arising from declines or volatility in public or private equity market prices. We are exposed to equity risk from a number of sources.

We generate revenue in our asset management businesses and from certain insurance and annuity contracts where fees are levied on account balances that are affected directly by equity market levels. Accordingly, we have further exposure to equity risk as adverse fluctuations in the market value of such assets will result in corresponding adverse impacts on revenue, income, and the contractual service margin. In addition, declining and volatile equity markets may have a negative impact on sales and redemptions (surrenders) in these businesses, and this may result in further adverse impacts on net income, the contractual service margin, and capital.

A portion of our exposure to equity risk arises in connection with benefit guarantees on segregated fund products, some participating insurance contracts, some adjustable insurance contracts, and some universal life contracts. These benefit guarantees may be triggered upon death, maturity, withdrawal or annuitization. The cost of providing these guarantees is uncertain and depends upon a number of factors, including general capital market conditions, our hedging strategies, policyholder behaviour and mortality experience, each of which may result in negative impacts on net income, the contractual service margin, and capital.

We also have direct exposure to equity markets from the investments supporting other general account liabilities, surplus, and employee benefit plans. These exposures fall within our risk-taking philosophy and appetite, and are therefore generally not hedged.

Interest Rate and Spread Risk

Interest rate and spread risk includes the potential for financial loss arising from changes in the value of insurance and investment contract liabilities and financial assets due to changes or volatility in interest rates or spreads. In practice, when asset cash flows and the policy obligations they support are not matched, this may result in the need to either sell assets to meet policy payments and expenses or reinvest excess asset cash flows in unfavourable interest rate or credit spread environments. This risk is managed in our asset-liability management program. Details of the asset-liability management program are discussed under the heading "Market Risk Management Governance and Control" in section K - Risk Management in the 2023 Annual MD&A.

Our primary exposure to interest rate and spread risk arises from insurance and investment contracts that contain guarantees in the form of minimum crediting rates, maximum premium rates, settlement options, guaranteed annuitization options and minimum benefits. If investment returns fall below guaranteed levels, we may be required to increase liabilities or capital in respect of these contracts. The guarantees attached to these products may be applicable to both past premiums collected and future premiums not yet received. Segregated fund contracts provide benefit guarantees that are linked to underlying fund performance and may be triggered upon death, maturity, withdrawal or annuitization. Exposure to guarantees is managed within our risk appetite limits through our asset-liability management program, which may include the use of hedging strategies utilizing interest rate derivatives such as interest rate floors, swaps, futures and swaptions. The impact of these guarantees on net income, contractual service margin, and capital are included in the disclosed market risk sensitivities.

Significant changes or volatility in interest rates or spreads could have a negative impact on sales of certain insurance and annuity products, and adversely impact the expected pattern of redemptions (surrenders) on existing policies. Increases in interest rates or widening credit spreads may increase the risk that policyholders will surrender their contracts, potentially forcing us to liquidate assets at a loss. While we have established hedging programs in place and our insurance and annuity products often contain surrender mitigation features, these may not be sufficient to fully offset the adverse impact of changes in interest rates or spreads. Declines in interest rates or narrowing spreads can result in compression of the net spread between interest earned on investments and interest credited to policyholders. Declines in interest rates or narrowing spreads can also result in increased asset calls, mortgage prepayments, and net reinvestment of positive cash flows at lower yields, and therefore adversely impact our profitability and financial position. Negative interest rates may additionally result in losses on our cash and short-term deposits and low or negative returns on our fixed income assets impacting our profitability.

We also have direct exposure to interest rates and spreads from investments supporting other general account liabilities, surplus and employee benefit plans. Higher interest rates or wider spreads will reduce the value of our existing assets. Conversely, lower interest rates or a narrowing of spreads will result in reduced investment income on new fixed income asset purchases. These exposures fall within our risk-taking philosophy and appetite and are therefore generally not hedged.

A sustained low interest rate environment may additionally adversely impact our net income, CSM, capital, and our ability to implement our business strategy and plans. This may be realized through lower sales, less profitable new business, changes in the pattern of redemptions on existing policies, among other impacts.

26 Sun Life Financial Inc. First Quarter 2024         MANAGEMENT'S DISCUSSION AND ANALYSIS

Real Estate Risk

Real estate risk is the potential for financial loss arising from fluctuations in the value of, or future cash flows from, our investments in real estate. We are exposed to real estate risk and may experience financial losses resulting from the direct ownership of real estate investments or indirectly through fixed income investments secured by real estate property, leasehold interests, ground rents, and purchase and leaseback transactions. Real estate price risk may arise from external market conditions, inadequate property analysis, inadequate insurance coverage, inappropriate real estate appraisals, or from environmental risk exposures. We hold real estate investments that support general account liabilities and surplus, and fluctuations in value will affect our net income, CSM, and capital. A material and sustained increase in interest rates may lead to deterioration in real estate values.

Foreign Currency Risk

Foreign currency risk is the result of mismatches in the currency of our assets and liabilities (inclusive of capital), and cash flows. This risk may arise from a variety of sources such as foreign currency transactions and services, foreign currency hedging, investments denominated in foreign currencies, investments in foreign subsidiaries and net income from foreign operations. Changes or volatility in foreign exchange rates, including a change to currencies that are fixed in value to another currency, could adversely affect our net income, contractual service margin and capital.

As an international provider of financial services, we operate in a number of countries, with revenues and expenses denominated in several local currencies. In each country in which we operate, we generally maintain the currency profile of assets to match the currency of liabilities and required capital. This approach provides an operational hedge against disruptions in local operations caused by currency fluctuations. Foreign currency derivative contracts such as currency swaps and forwards are used as a risk management tool to manage the currency exposure in accordance with our Asset Liability Management Policy. As at March 31, 2024 and December 31, 2023, the Company did not have a material foreign currency risk exposure.

Changes in exchange rates can affect our net income and surplus when financial results in functional currencies are translated into Canadian dollars. Net income earned outside of Canada is generally not currency hedged and a weakening in the local currency of our foreign operations relative to the Canadian dollar can have a negative impact on our net income reported in Canadian currency. A strengthening in the local currency of our foreign operations relative to the Canadian dollar would have the opposite effect. Regulatory capital ratios could also be impacted by changes in exchange rates.

Inflation Risk

Inflation risk is the potential for financial loss arising from changes in inflation rates. This risk results from insurance contract liabilities that are linked to market measures of inflation such as the Consumer Price Index. The primary sources for this risk exposure are from certain group and retail annuity contracts and group long term disability contracts. In these contracts, the annuity and disability benefit payments may be linked to an indexing formula containing an inflation price index. Benefit payments linked to inflation indices may also include various caps, floors and averaging mechanisms that vary across product designs.

Exposure to inflation risk is managed within our asset-liability management program, primarily by investing in inflation linked assets to match liability exposures.

i. Market Risk Sensitivities

We use a variety of methods and measures to manage and quantify our market risk exposures. These include duration and key rate duration management, convexity measures, cash flow gap analysis, scenario testing, and sensitivity testing of earnings and regulatory capital ratios.

The measurement of liabilities and assets are affected by the level of equity market performance, interest rates, credit and swap spreads and other market risk variables. The following sections set out the estimated immediate impact on, or sensitivity of, our net income(1), contractual service margin, OCI and SLF Inc.'s LICAT ratio to certain instantaneous changes in market variables as at March 31, 2024 and December 31, 2023.

The estimated sensitivities in the tables below reflect the impact of market movements on insurance contracts and investment contracts, assets backing insurance contracts, assets backing investment contracts, assets backing the surplus segment, and seed investments in our asset management subsidiaries.

Net income sensitivities to equity and real estate market movements are driven primarily by changes in the value of investments backing general account liabilities and surplus. Net income sensitivities to interest rates and spreads are driven by the net impact on liabilities and the assets backing them. Lower interest rates or a narrowing of spreads will result in increased liabilities for insurance contracts, offset by increased values of the assets backing general account liabilities. Higher interest rates or a widening of spreads will result in decreased liabilities for insurance contracts, offset by decreased values of the assets backing general account liabilities. Further detail on the impact of changes or volatility in market prices on assets and liabilities is provided under the headings "Equity Risk", "Interest Rate and Spread Risk", and "Real Estate Risk" above.

(1)Net income in section I - Risk Management in this document refers to common shareholders' net income.

MANAGEMENT'S DISCUSSION AND ANALYSIS         Sun Life Financial Inc. First Quarter 2024 27

OCI sensitivities are impacted by changes in the market value of assets classified as FVOCI. The market value of FVOCI fixed income assets, which are held primarily in our surplus and investment contract segments, increases with lower interest rates or a narrowing of spreads, and decreases with higher interest rates or a widening of spreads.

As these market risk sensitivities reflect an instantaneous impact on net income, CSM, OCI and SLF Inc.'s LICAT ratio, they do not include impacts over time such as the effect on fee income in our asset management businesses.

Refer to Additional Cautionary Language and Key Assumptions Related to Sensitivities in this section for important additional information regarding these estimates.

1. Private and Public Equity Market Sensitivities

The following table sets out the estimated immediate impact on, or sensitivity of, our net income, CSM, OCI and SLF Inc.'s LICAT ratio to certain instantaneous changes in public or private equity market prices as at March 31, 2024 and December 31, 2023. The sensitivities shown outline the impact of the same percentage increase or decrease applied to each of private equity and public equity. About two-thirds of our expected net income sensitivity to changes in equity markets is driven by investments in private equity.

($ millions, unless otherwise noted)						As at March 31, 2024
Change in Private and Public Equity Markets(1)(2)(3)	25% decrease		10% decrease		10% increase		25% increase
Potential impact on net income (after-tax)		(450)		(175)		175		475
Potential impact on CSM (pre-tax)		(650)		(250)		250		600
Potential impact on OCI(4)		—		—		—		—
Potential impact on LICAT ratio(5)	1.5% point decrease		0.5% point decrease		0.5% point increase		1.5% point increase
($ millions, unless otherwise noted)						As at December 31, 2023
Change in Private and Public Equity Markets(1)(2)(3)	25% decrease		10% decrease		10% increase		25% increase
Potential impact on net income (after-tax)		(400)		(175)		175		425
Potential impact on CSM (pre-tax)		(625)		(250)		250		600
Potential impact on OCI(4)		—		—		—		—
Potential impact on LICAT ratio(5)	3.0% point decrease		1.0% point decrease		1.0% point increase		2.5% point increase
(1)Represents the respective change across all equity exposures as at March 31, 2024 and December 31, 2023. Due to the impact of active management, basis risk, and other factors, realized sensitivities may differ significantly from expectations. Sensitivities include the impact of re-balancing equity hedges for hedging programs at 2% intervals (for 10% changes in equity markets) and at 5% intervals (for 25% changes in equity markets). (2)The market risk sensitivities include the estimated impact of our hedging programs in effect as at March 31, 2024 and December 31, 2023, and include new business added and product changes implemented prior to such dates. (3)Net income, CSM and OCI sensitivities have been rounded in increments of $25 million. The sensitivities exclude the market impacts on the income from our joint ventures and associates, which we account for on an equity basis. (4)The market risk OCI sensitivities exclude the impact of changes in the defined benefit obligations and plan assets. (5)The LICAT sensitivities illustrate the impact on SLF Inc. as at March 31, 2024 and December 31, 2023. LICAT ratios are rounded in increments of 0.5%.

28 Sun Life Financial Inc. First Quarter 2024         MANAGEMENT'S DISCUSSION AND ANALYSIS

2. Interest Rate Sensitivities

The following table sets out the estimated immediate impact on, or sensitivity of, our net income, CSM, OCI and SLF Inc.'s LICAT ratio to certain instantaneous changes in interest rates as at March 31, 2024 and December 31, 2023.

($ millions, unless otherwise noted)	As at March 31, 2024				As at December 31, 2023
Change in Interest Rates(1)(2)(3)	50 basis point decrease		50 basis point increase		50 basis point decrease		50 basis point increase
Potential impact on net income (after-tax)		(25)		25		(25)		50
Potential impact on CSM (pre-tax)		100		(75)		75		(75)
Potential impact on OCI(4)		200		(200)		200		(200)
Potential impact on LICAT ratio(5)	2.0% point increase		1.0% point decrease		1.5% point increase		1.5% point decrease
(1)Interest rate sensitivities assume a parallel shift in assumed interest rates across the entire yield curve as at March 31, 2024 and December 31, 2023 with no change to the ultimate risk-free rate. Variations in realized yields based on factors such as different terms to maturity and geographies may result in realized sensitivities being significantly different from those illustrated above. Sensitivities include the impact of re-balancing interest rate hedges for hedging programs at 10 basis point intervals (for 50 basis point changes in interest rates). (2)The market risk sensitivities include the estimated impact of our hedging programs in effect as at March 31, 2024 and December 31, 2023, and include new business added and product changes implemented prior to such dates. (3)Net income, CSM and OCI sensitivities have been rounded in increments of $25 million. The sensitivities exclude the market impacts on the income from our joint ventures and associates, which we account for on an equity basis. (4)The market risk OCI sensitivities exclude the impact of changes in the defined benefit obligations and plan assets. (5)The LICAT sensitivities illustrate the impact on SLF Inc. as at March 31, 2024 and December 31, 2023. The sensitivities reflect the worst scenario as at March 31, 2024 and assume that a scenario switch does not occur in the quarter. LICAT ratios are rounded in increments of 0.5%.

The above sensitivities were determined using a 50 basis point change in interest rates and a 10% and 25% changes in our equity markets because we believe that these market shocks were reasonably possible as at March 31, 2024. Significant changes in market variables may result in other than proportionate impacts on our sensitivities.

MANAGEMENT'S DISCUSSION AND ANALYSIS         Sun Life Financial Inc. First Quarter 2024 29

3. Credit Spread and Swap Sensitivities

Credit spread sensitivities reflect the impact of changes in credit spreads on our asset and liability values (including provincial government bonds, corporate bonds, and other fixed income assets). Swap spread sensitivities reflect the impact of changes in swap spreads on swap-based derivative positions and liability values.

The following tables set out the estimated immediate impact on, or sensitivity of, our net income, CSM, OCI and SLF Inc.'s LICAT ratio to certain instantaneous changes in credit spreads and our net income, CSM, and OCI to certain changes in swap spreads as at March 31, 2024 and December 31, 2023.

($ millions, unless otherwise noted)	As at March 31, 2024				As at December 31, 2023
Change in Credit Spreads(1)(2)	50 basis point decrease		50 basis point increase		50 basis point decrease		50 basis point increase
Potential impact on net income (after-tax)		50		(50)		50		(50)
Potential impact on CSM (pre-tax)		75		(75)		75		(25)
Potential impact on OCI(3)		175		(175)		200		(175)
Potential impact on LICAT ratio(4)	1.0% point increase		1.0% point decrease		1.0% point increase		1.0% point decrease
(1)The credit spread sensitivities assume a parallel shift in the indicated spreads across the entire term structure with no change to the ultimate liquidity premium. The sensitivities reflect a floor of zero on credit spreads where the spreads are not currently negative. Variations in realized spread changes based on different terms to maturity, geographies, asset classes and derivative types, underlying interest rate movements, and ratings may result in realized sensitivities being significantly different from those provided above. (2)Net income, CSM, and OCI sensitivities have been rounded in increments of $25 million. (3)The market risk OCI sensitivities exclude the impact of changes in the defined benefit obligations and plan assets. (4)The LICAT sensitivities illustrate the impact on SLF Inc. as at March 31, 2024 and December 31, 2023. The sensitivities reflect the worst scenario as of March 31, 2024 and assume that a scenario switch does not occur in the quarter. LICAT ratios are rounded in increments of 0.5%.

($ millions, unless otherwise noted)	As at March 31, 2024				As at December 31, 2023
Change in Swap Spreads(1)(2)	20 basis point decrease		20 basis point increase		20 basis point decrease		20 basis point increase
Potential impact on net income (after-tax)		(25)		25		(25)		25
(1)The swap spread sensitivities assume a parallel shift in the indicated spreads across the entire term structure. Variations in realized spread changes based on different terms to maturity, geographies, asset classes and derivative types, underlying interest rate movements, and ratings may result in realized sensitivities being significantly different from those provided above. (2)Net income, CSM, and OCI sensitivities have been rounded in increments of $25 million.

4. Real Estate Sensitivities

The following table sets out the estimated immediate impact on, or sensitivity of, our net income, OCI and CSM to certain instantaneous changes in the value of our real estate investments as at March 31, 2024 and December 31, 2023.

($ millions, unless otherwise noted)	As at March 31, 2024		As at December 31, 2023
Change in Real Estate Values (1)	10% decrease	10% increase	10% decrease	10% increase
Potential impact on net income (after-tax)	(475)	475	(475)	475
Potential impact on CSM (pre-tax)	(100)	100	(100)	100

(1)Net income, CSM, and OCI sensitivities have been rounded in increments of $25 million.

LICAT Interest Rate Scenario Switch

The LICAT interest rate risk is assessed under four different interest rate scenarios, and the scenario leading to the highest capital requirement is chosen as the worst scenario for each geographic region as defined by the LICAT guideline. Changes and interaction between the level and term movements in interest rates and credit spreads can shift the interest rate scenario applied in the LICAT calculation causing a discontinuity where capital requirements change materially. In 2020, OSFI updated the LICAT guideline for interest rate risk requirements for participating businesses to be smoothed over six quarters. As a result, the actual impact to the LICAT ratio from participating businesses in any quarter will reflect the scenarios from current quarter as well as the prior five quarters and switching between the scenarios would have the effect of offsetting the previous impacts over time. It should be noted that switching of the scenario can also change the direction of our sensitivities.

For SLF Inc., assuming no further scenario switches, no additional LICAT ratio impact is expected over the next five quarters.

In Q1'24, Sun Life Assurance experienced a scenario switch, resulting in no change to the LICAT ratio. For Sun Life Assurance, assuming no further scenario switches, the remaining impact of one-half percentage point is expected to increase the LICAT ratio over the next five quarters.

30 Sun Life Financial Inc. First Quarter 2024         MANAGEMENT'S DISCUSSION AND ANALYSIS

5. Additional Cautionary Language and Key Assumptions Related to Sensitivities

Our market risk sensitivities are measures of our estimated change in net income, OCI, CSM and LICAT ratio for changes in market risk variables described above, based on market risk variables and business in force as at the reporting date. These sensitivities are calculated independently for each risk factor, generally assuming that all other risk variables stay constant. The sensitivities do not take into account indirect effects such as potential impacts on goodwill impairment or valuation allowances on deferred tax assets.

We have provided measures of our net income sensitivity to instantaneous changes in equity markets, interest rates, credit spreads, swap spreads, real estate price levels, and capital sensitivities to changes in equity price levels, interest rates and credit spreads. The LICAT ratio and CSM sensitivities are non-IFRS financial measures, and for additional information, see section N - Non-IFRS Financial Measures in this document. The cautionary language which appears in this section is applicable to all net income, CSM, OCI and LICAT ratio sensitivities.

Actual results can differ materially from these estimates for a variety of reasons, including differences in the pattern or distribution of the market shocks, the interaction between these risk factors, model error, or changes in other assumptions such as business mix, effective tax rates, policyholder behaviour, currency exchange rates and other market variables relative to those underlying the calculation of these sensitivities. The extent to which actual results may differ from the indicative ranges will generally increase with larger movements in risk variables. Our sensitivities as at December 31, 2023 have been included for comparative purposes only.

Sensitivities to interest rates and credit spreads assume a parallel shift in assumed interest rates across the entire yield curve or a parallel shift in the indicated spreads across the entire term structure, with no change to the ultimate risk-free rate or ultimate liquidity premium. Realized sensitivities may be significantly differently from those illustrated based on factors such as different terms to maturity, geographies, asset classes and derivative types, and ratings.

The sensitivities reflect the composition of our assets and liabilities as at March 31, 2024 and December 31, 2023, respectively. Changes in these positions due to new sales or maturities, asset purchases/sales, or other management actions could result in material changes to these reported sensitivities. In particular, these sensitivities reflect the expected impact of hedging activities based on the hedging programs in place as at the respective calculation dates. The actual impact of hedging activity can differ materially from that assumed in the estimated sensitivities due to ongoing hedge re-balancing activities, changes in the scale or scope of hedging activities, changes in the cost or general availability of hedging instruments, basis risk (i.e., the risk that hedges do not exactly replicate the underlying portfolio experience), model risk, and other operational risks in the ongoing management of the hedge programs or the potential failure of hedge counterparties to perform in accordance with expectations.

Our hedging programs may themselves expose us to other risks, including basis risk, volatility risk, and increased levels of derivative counterparty credit risk, liquidity risk, model risk and other operational risks. These factors may adversely impact the net effectiveness, costs, and financial viability of maintaining these hedging programs and therefore adversely impact our profitability and financial position. While our hedging programs are intended to mitigate these effects (e.g., hedge counterparty credit risk is managed by maintaining broad diversification, dealing primarily with highly-rated counterparties, and transacting through over-the-counter ("OTC") contracts cleared through central clearing houses, exchange-traded contracts or bilateral OTC contracts negotiated directly between counterparties that include credit support annexes), residual risk, potential reported earnings and capital volatility remain.

The sensitivities are based on methods and assumptions in effect as at March 31, 2024 and December 31, 2023, as applicable. Changes in the regulatory environment, assumptions or methods used to measure assets and liabilities after those dates could result in material changes to the estimated sensitivities. Changes in market risk variables in excess of the changes illustrated may result in other than proportionate impacts.

The sensitivities reflect the CSM as at March 31, 2024 and December 31, 2023. For insurance contracts measured using the variable fee approach ("VFA"), where the change in the effect of the time value of money and financial risk not arising from the underlying items adjusts the CSM, changes in the CSM balance will affect the sensitivity of income to changes in market risk variables.

Our LICAT sensitivities may be non-linear and can change due to the interrelationship between market rates and spreads, actuarial assumptions and our LICAT calculations.

For the reasons outlined above, our sensitivities should only be viewed as indicative estimates of the underlying sensitivities of each factor under these specialized assumptions, and should not be viewed as predictors of our future income, OCI, CSM or capital. Given the nature of these calculations, we cannot provide assurance that actual impacts will be consistent with the estimates provided.

Information related to market risk sensitivities should be read in conjunction with the information contained in section

N - Accounting and Control Matters - 1 - Critical Accounting Policies and Estimates in the 2023 Annual MD&A. Additional information on market risk can be found in Note 2 and Note 6 of the 2023 Annual Consolidated Financial Statements and the Risk Factors section in the 2023 AIF.

MANAGEMENT'S DISCUSSION AND ANALYSIS         Sun Life Financial Inc. First Quarter 2024 31

J. Additional Financial Disclosure

1. Revenue

	Quarterly results
($ millions)	Q1'24	Q4'23	Q1'23
Insurance revenue
Annuities	581	572	568
Life insurance	1,360	1,415	1,290
Health insurance	3,599	3,471	3,424
Total insurance revenue	5,540	5,458	5,282
Net Investment income (loss)	(677)	11,161	4,800
Fee income	2,012	2,065	1,901
Total revenue	6,875	18,684	11,983

Total revenue decreased $5.1 billion compared to the prior year, primarily driven by net investment losses from fair value changes of invested assets. By business group, total revenue reflected net investment losses in Canada, the U.S. and Asia partially offset by higher insurance revenue primarily in the U.S.

2. Changes in the Statements of Financial Position and in Shareholders' Equity

Total general fund assets were $205.0 billion as at March 31, 2024 (December 31, 2023 - $204.8 billion).

The net liabilities balance for insurance contracts issued(1) was $134.7 billion as at March 31, 2024 (December 31, 2023 - $135.5 billion), primarily reflecting insurance finance income and expenses and the change in insurance service result, partially offset by foreign currency translation and cash flows.

Total shareholders' equity, including preferred shares and other equity instruments, is $24.0 billion as at March 31, 2024 (December 31, 2023 - $23.6 billion). The change in total shareholders' equity included:

(i)total shareholders' net income of $838 million, before preferred share dividends of $20 million; and

(ii)favourable impacts from foreign exchange translation of $292 million included in OCI; partially offset by

(iii)common share dividend payments of $456 million; and

(iv)a decrease of $174 million from the repurchase and cancellation of common shares.

As at April 26, 2024, SLF Inc. had 581,252,131 common shares, 3,641,145 options to acquire SLF Inc. common shares, and 52,200,000 Class A Shares outstanding.

(1)For more information about the changes in the net insurance contract liabilities, refer to Note 7 of the Interim Consolidated Financial Statements for the period ended March 31, 2024.

32 Sun Life Financial Inc. First Quarter 2024         MANAGEMENT'S DISCUSSION AND ANALYSIS

3. Cash Flows

	Quarterly results
($ millions)	Q1'24	Q4'23	Q1'23
Net cash and cash equivalents, beginning of period	11,170	8,936	9,372
Cash flows provided by (used in):
Operating activities	(2,487)	3,403	20
Investing activities	16	(241)	(244)
Financing activities	(925)	(639)	(264)
Changes due to fluctuations in exchange rates	134	(289)	(33)
Increase (decrease) in cash and cash equivalents	(3,262)	2,234	(521)
Net cash and cash equivalents, end of period	7,908	11,170	8,851
Short-term securities, end of period	3,215	2,003	1,981
Net cash, cash equivalents and short-term securities, end of period	11,123	13,173	10,832

Our operating activities generate cash flows which include net premiums, net investment income, fee income, and the sale and maturity of investments. They are the principal source of funds to pay for policyholder claims and benefits, commissions, operating expenses, and the purchase of investments. Cash flows used in investing activities primarily include transactions related to associates, joint ventures and acquisitions. Cash flows provided by and used in financing activities largely reflect capital transactions including payments of dividends, the issuance and repurchase of shares, as well as the issuance and retirement of debt instruments and preferred shares.

Q1'24 cash flows used in financing activities were higher year-over-year primarily due to borrowing from credit facilities in the prior year and the impact from common shares purchased for cancellation in the current year.

MANAGEMENT'S DISCUSSION AND ANALYSIS         Sun Life Financial Inc. First Quarter 2024 33

4. Quarterly Financial Results

The following table provides a summary of our results for the eight most recently completed quarters. A more complete discussion of our historical quarterly results can be found in our Interim and Annual MD&A for the relevant periods.

	Quarterly results
	IFRS 17 and IFRS 9(1)(2)								IFRS 4 and IAS 39(1)
($ millions, unless otherwise noted)	Q1'24	Q4'23	Q3'23	Q2'23	Q1'23	Q4'22	Q3'22	Q2'22	Q4'22	Q3'22	Q2'22
Total revenue	6,875	18,684	2,439	7,668	11,983	8,494	4,901	(2,967)	12,301	8,630	2,011
Common shareholders' net income (loss)
Underlying net income(3)	875	983	930	920	895	892	949	808	990	949	892
Add: Market-related impacts(2)	(70)	(193)	23	(220)	(64)	224	(361)	118	(136)	(160)	(152)
ACMA	(7)	(1)	35	7	(5)	12	(131)	(22)	54	7	—
Other adjustments	20	(40)	(117)	(47)	(20)	37	(346)	26	43	(330)	45
Reported net income - Common shareholder	818	749	871	660	806	1,165	111	930	951	466	785
Diluted EPS ($)
Underlying(3)	1.50	1.68	1.59	1.57	1.52	1.52	1.62	1.38	1.69	1.62	1.52
Reported	1.40	1.28	1.48	1.12	1.37	1.98	0.19	1.58	1.62	0.80	1.34
Basic reported EPS ($)
Reported	1.40	1.28	1.49	1.12	1.37	1.99	0.19	1.59	1.62	0.80	1.34
Underlying net income (loss) by segment(3)
Asset Management	282	331	330	296	282	324	298	295	313	295	270
Canada	310	350	338	372	316	265	293	299	324	300	344
U.S.	189	253	185	215	237	230	227	134	240	216	154
Asia	177	143	166	150	141	135	153	118	152	175	148
Corporate	(83)	(94)	(89)	(113)	(81)	(62)	(22)	(38)	(39)	(37)	(24)
Total underlying net income (loss)(3)	875	983	930	920	895	892	949	808	990	949	892
Add: Market-related impacts (pre-tax)(2)	(26)	(436)	107	(298)	(99)	179	(400)	282	(273)	(212)	(109)
ACMA (pre-tax)	(8)	6	41	11	(5)	(26)	(153)	(30)	67	15	—
Other adjustments (pre-tax)	41	(118)	(156)	(89)	(10)	(141)	(385)	29	(88)	(362)	57
Tax expense (benefit) on above items	(64)	314	(51)	116	25	261	100	(159)	255	76	(55)
Reported net income (loss) by segment - Common shareholders
Asset Management	284	297	268	248	254	321	218	298	322	215	296
Canada	290	348	365	210	329	453	56	476	367	210	160
U.S.	97	101	132	175	168	202	125	149	110	94	213
Asia	235	44	211	122	134	92	—	7	98	125	131
Corporate	(88)	(41)	(105)	(95)	(79)	97	(288)	—	54	(178)	(15)
Total reported net income (loss) - Common shareholders	818	749	871	660	806	1,165	111	930	951	466	785

(1)IFRS 17 and IFRS 9 were adopted on January 1, 2023, see Note 2 of the 2023 Annual Consolidated Financial Statements.

(2)2022 results have been restated for the adoption of IFRS 17 and the related IFRS 9 classification overlay (“the new standards”). The restated results may not be fully representative of our future earnings profile, as we were not managing our asset and liability portfolios under the new standards. The majority of the actions taken to re-balance asset portfolios and transition asset-liability management execution to an IFRS 17 basis occurred in Q1'23. Accordingly, analysis based on 2022 comparative results may not necessarily be indicative of future trends, and should be interpreted with this context.

(3)Represents a non-IFRS financial measure. For more details, see section N - Non-IFRS Financial Measures in this document.

34 Sun Life Financial Inc. First Quarter 2024         MANAGEMENT'S DISCUSSION AND ANALYSIS

Fourth Quarter 2023

Underlying net income of $983 million increased $91 million or 10% from prior year, driven by:

•Wealth & asset managementup$27 million: Higher Asset Management fee-related earnings and higher investment income driven by volume growth and an increase in yields.

•Group - Health & Protection up$44 million:Business premium growth in the U.S. and Canada, improved disability experience in Canada, and higher investment contributions in the U.S., partially offset by lower results in U.S. Dental.

•Individual - Protectionup$53 million: Business growth reflecting good sales momentum in Asia, and higher investment contributions in Canada, partially offset by lower earnings due to the sale of Sun Life UK.

•Corporate expenses & other$(33) million increase in net loss driven by higher operating expenses reflecting business growth and continued investments in the business, partially offset by a lower effective tax rate.

•Higher earnings on surplus primarily driven by higher net interest income and lower realized losses.

Reported net income of $749 million decreased $416 million or 36%, driven by unfavourable market-related impacts primarily reflecting interest rates and real estate experience, the prior year impact of the Canada Tax Rate Change, and fair value changes in management's ownership of MFS shares; partially offset by the increase in underlying net income, the impact of the Bermuda Corporate Income Tax Change; and lower DentaQuest integration costs.

Third Quarter 2023

Underlying net income of $930 milliondecreased $19 million or 2%, driven by:

•Wealth & asset managementup$38 million: Higher investment income driven by volume growth and an increase in yields, and higher Asset Management fee-related earnings.

•Group - Health & Protectionup$4 million: Strong revenue growth across all U.S. businesses and better disability experience in Canada, largely offset by health and protection experience in the U.S., and lower fee-related earnings in Canada.

•Individual - Protectiondown$8 million: Lower earnings due to the sale of Sun Life UK, and lower net investment results in the U.S., partially offset by business growth reflecting good sales momentum during the past year in Asia.

•Corporate expenses & other$(53) million increase in net loss includes higher debt financing costs.

•Higher expenses across business types were driven by volume growth, continued investments in the business, and higher incentive compensation.

Reported net income of $871 million increased $760 million, driven by favourable market-related impacts primarily reflecting interest rates partially offset by real estate experience, a $170 million charge related to the sale of Sun Life UKand a higher increase in SLC Management's acquisition-related liabilitiesin the prior year, and ACMA impacts; partially offset by fair value changes in management's ownership of MFS shares.

Second Quarter 2023

Underlying net income of $920 millionincreased $112 million or 14%, driven by:

•Wealth & asset management down$1 million: Higher investment income driven by volume growth and an increase in yields was largely offset by lower fee-based earnings in MFS, reflecting equity market declines over the past year, as well as higher expenses in Canada.

•Group - Health & Protection up$122 million: Strong performance driven by good premium growth and better disability experience in Canada and the U.S., as well as a full quarter of DentaQuest contributions.

•Individual - Protectionup$50 million: Higher premiums reflecting good sales momentum during the past year in Asia, and improved insurance experience in Canada and the U.S.

•Corporate expenses & other $(59) million increased net loss driven by higher operating expenses including incentive compensation and an increase in debt financing costs.

•Higher earnings on surplus reflecting an increase in realized gains and net interest income from higher rates.

Reported net income of $660 million decreased $270 million or 29%, driven by market-related impacts primarily reflecting interest rates and real estate investments, the prior year gain on the sale-leaseback of the Wellesley office in the U.S., and fair value changes in management's ownership of MFS shares; partially offset by the increase in underlying net income.

First Quarter 2023

Underlying net income of $895 million increased $175 million or 24%, driven by:

•Wealth & asset managementdown$11 million: Lower fee-based earnings in MFS, Canada, and Asia, reflecting equity market declines, largely offset by an increase in investment income driven by higher volumes and yields.

•Group - Health & Protectionup$180 million: Strong performance including premium growth, improved disability in Canada and the U.S., strong medical stop-loss margins, and improved U.S. mortality. DentaQuest results also contributed to the increase.

•Individual - Protectionup$42 million: Higher premiums reflecting good sales momentum during the past year, and improved mortality in Asia.

•Corporate Support & other$(36) million increased net loss: Higher operating expenses including long-term incentive compensation and IFRS 17 project spend, as well as an increase in debt financing costs.

•Higher investment income reflecting an increase in realized gains from surplus assets and net interest income from higher rates.

Reported net income of $806 million increased $141 million or 21%, driven by the increase in underlying net income and gain on the sale of the sponsored markets business in Canada, partially offset by market-related impacts, and DentaQuest integration and SLC Management acquisition-related costs.

MANAGEMENT'S DISCUSSION AND ANALYSIS         Sun Life Financial Inc. First Quarter 2024 35

Fourth Quarter 2022(1)

Reported net income of $951 million decreased $127 million or 12%, primarily reflecting unfavourable market-related impacts and DentaQuest integration costs, partially offset by the impact of the Canada Tax Rate Change, fair value changes on MFS' share-based payment awards and ACMA. Prior year reported net income included a gain on the initial public offering ("IPO") of our India asset management joint venture partially offset by an increase to SLC Management's acquisition-related liabilities. Underlying net income of $990 million increased
$92 million or 10%, driven by business growth and experience in protection and health and contribution from the DentaQuest acquisition. This was partially offset by lower wealth and asset management earnings reflecting declines in global equity markets, and a higher effective tax rate compared to prior year.

Third Quarter 2022(1)

Reported    net income of $466 million decreased $553 million or 54% from prior year, primarily reflecting unfavourable market-related impacts, a $170 million charge related to the sale of Sun Life UK, less favourable ACMA impacts, and an increase in SLC Management's acquisition-related liabilities, partially offset by fair value changes on MFS' share-based payment awards. Underlying net income of
$949 million increased $47 million or 5%, driven by business growth and experience in protection and health including a strong contribution from the DentaQuest acquisition. This was partially offset by lower fee-based income in wealth and asset management, mainly driven by declines in global equity markets.    

Second Quarter 2022(1)

Q2'22 reported net income of $785 million decreased $115 million or 13%, reflecting unfavourable market-related impacts and DentaQuest acquisition costs, partially offset by fair value changes on MFS' share-based payment awards and a gain on the sale-leaseback of our Wellesley office in the U.S. Underlying net income of $892 million was up slightly driven by business growth, new business gains, contribution from the DentaQuest acquisition, and lower incentive compensation expenses. This was largely offset by Asset Management results reflecting a decline in global equity markets driving lower average net assets, lower available-for-sale gains and morbidity experience in the U.S. Foreign exchange translation led to an increase of $16 million and $12 million in reported net income and underlying net income, respectively.

K. Legal and Regulatory Proceedings

Information concerning legal and regulatory matters is provided in our Annual Consolidated Financial Statements, our annual MD&A and the AIF, in each case for the year ended December 31, 2023, and in our Interim Consolidated Financial Statements for the period ended
March 31, 2024.

L. Changes in Accounting Policies

We have adopted one amended IFRS standard in the current year, which had no material impact on our Consolidated Financial Statements. For additional information, refer to Note 2 in our Interim Consolidated Financial Statements for the period ended March 31, 2024.

M. Internal Control Over Financial Reporting

Management is responsible for establishing and maintaining adequate internal control over financial reporting to provide reasonable assurance regarding the reliability of the Company's financial reporting and the preparation of its financial statements in accordance with IFRS.

There were no changes to the Company's internal control over financial reporting during the period, which began on January 1, 2024 and ended on March 31, 2024 that have materially affected, or are reasonably likely to materially affect, the Company's internal control over financial reporting.

(1)This paragraph compares the results in two periods that preceded January 1, 2023 (prior to the adoption of IFRS 17 and IFRS 9), thus IFRS 4 and
IAS 39 were the accounting standards in effect at the time. Refer to the results in the table above under the heading "IFRS 4 and IAS 39".

36 Sun Life Financial Inc. First Quarter 2024         MANAGEMENT'S DISCUSSION AND ANALYSIS

N. Non-IFRS Financial Measures

1. Common Shareholders' View of Reported Net Income

The following table provides the reconciliation of the Drivers of Earnings ("DOE") analysis to the Statement of Operations total net income. The DOE analysis provides additional detail on the sources of earnings, primarily for protection and health businesses, and explains the actual results compared to the longer term expectations. The underlying DOE and reported DOE are both presented on a common shareholders' basis by removing the allocations to participating policyholders.

($ millions)	Q1'24
Statement of Operations	Underlying DOE(1)	Non-underlying adjustments(1)	Common Shareholders' Reported DOE(2)(3)	Adjustment for:		Reported (per IFRS)
				Par(2)	Net(3)
Net insurance service result	712	—	712	51	(2)	761
Net investment result	419	69	488	30	91	609
ACMA(3)		(8)	(8)	—	8
Fee income:
Asset Management	383	60	443		(443)
Other fee income	48	—	48	(4)	1,968	2,012
Fee income						2,012
Other expenses	(479)	(82)	(561)	—	(1,624)	(2,185)
Income before taxes	1,083	39	1,122	77	(2)	1,197
Income tax (expense) benefit	(175)	(64)	(239)	(22)	—	(261)
Total net income	908	(25)	883	55	(2)	936
Allocated to Participating and NCI(4)	(13)	(32)	(45)	(55)	2	(98)
Dividends and Distributions(5)	(20)	—	(20)	—	—	(20)
Underlying net income(1)	875
Reported net income - Common shareholders		(57)	818	—	—	818

($ millions)	Q4'23
Statement of Operations	Underlying DOE(1)	Non-underlying adjustments(1)	Common Shareholders' Reported DOE(2)(3)	Adjustment for:		Reported (per IFRS)
				Par(2)	Net(3)
Net insurance service result	769	—	769	61	(168)	662
Net investment result	427	(415)	12	25	224	261
ACMA(3)		6	6	—	(6)
Fee income:
Asset Management	460	(57)	403		(403)
Other fee income	66	3	69	(5)	2,001	2,065
Fee income						2,065
Other expenses	(489)	(92)	(581)	—	(1,620)	(2,201)
Income before taxes	1,233	(555)	678	81	28	787
Income tax (expense) benefit	(203)	314	111	(24)	—	87
Total net income	1,030	(241)	789	57	28	874
Allocated to Participating and NCI(4)	(27)	7	(20)	(57)	(28)	(105)
Dividends and Distributions(5)	(20)	—	(20)	—	—	(20)
Underlying net income(1)	983
Reported net income - Common shareholders		(234)	749	—	—	749

(1)For a breakdown of non-underlying adjustments made to arrive at underlying net income as well as the underlying DOE analysis, see the heading "Underlying Net Income and Underlying EPS" below.

(2)Removes the components attributable to the participating policyholders.

(3)Certain amounts within the Drivers of Earnings are presented on a net basis to reflect how the business is managed, compared to a gross basis in the Consolidated Financial Statements. For more details, refer to "Drivers of Earnings" in section 3 - Additional Non-IFRS Financial Measures below. In this document, the reported net income impact of ACMA excludes amounts attributable to participating policyholders and includes non-liability impacts. In contrast, the net income impacts of method and assumption changes in the Interim Consolidated Financial Statements for the period ended March 31, 2024 (Note 10.B.v of the 2023 Annual Consolidated Financial Statements) includes amounts attributable to participating policyholders and excludes non-liability impacts.

(4)Allocated to equity in the participating account and attributable to non-controlling interests.

(5)Dividends on preferred shares and distributions on other equity instruments.

MANAGEMENT'S DISCUSSION AND ANALYSIS         Sun Life Financial Inc. First Quarter 2024 37

($ millions)	Q1'23
Statement of Operations	Underlying DOE(1)	Non-underlying adjustments(1)	Common Shareholders' Reported DOE(2)(3)	Adjustment for:		Reported (per IFRS)
				Par(2)	Net(3)
Net insurance service result	676	—	676	31	(19)	688
Net investment result	437	(92)	345	12	64	421
ACMA(3)		(5)	(5)	—	5
Fee income:
Asset Management	377	(45)	332		(332)
Other fee income	79	—	79	(3)	1,825	1,901
Fee income						1,901
Other expenses	(454)	13	(441)	—	(1,474)	(1,915)
Income before taxes	1,115	(129)	986	40	69	1,095
Income tax (expense) benefit	(191)	25	(166)	(7)	(4)	(177)
Total net income	924	(104)	820	33	65	918
Allocated to Participating and NCI(4)	(9)	15	6	(33)	(65)	(92)
Dividends and Distributions(5)	(20)	—	(20)	—	—	(20)
Underlying net income(1)	895
Reported net income - Common shareholders		(89)	806	—	—	806

Refer to the footnotes on the previous page.

38 Sun Life Financial Inc. First Quarter 2024         MANAGEMENT'S DISCUSSION AND ANALYSIS

2. Underlying Net Income and Underlying EPS

Underlying net income is a non-IFRS financial measure that assists in understanding Sun Life's business performance by making certain adjustments to IFRS income. Underlying net income, along with common shareholders’ net income (Reported net income), is used as a basis for management planning, and is also a key measure in our employee incentive compensation programs. This measure reflects management's view of the underlying business performance of the company and long-term earnings potential. For example, due to the longer term nature of our individual protection businesses, market movements related to interest rates, equity markets and investment properties can have a significant impact on reported net income in the reporting period. However, these impacts are not necessarily realized, and may never be realized, if markets move in the opposite direction in subsequent periods or in the case of interest rates, the fixed income investment is held to maturity.

Underlying net income removes the impact of the following items from reported net income:

•Market-related impacts reflecting the after-tax difference in actual versus expected market movements, including:

i)Net interest impact from risk-free rate, credit spread, and swap spread movements, reflecting accounting mismatches between assets and liabilities:

a.Differences arising from fair value changes(1) of fixed income assets (including derivatives) measured at FVTPL supporting insurance contracts, compared to fair value changes of the liabilities(2);

b.Fair value changes of fixed income assets (including derivatives) measured at FVTPL supporting our investment contract liability and surplus portfolios(3); and

c.Tax-exempt investment income above or below expected long-term tax savings relating to our Canadian multi-national insurance operations.

ii)Non-fixed income investments where the weighted average expected return is approximately 2% per quarter, including:

a.Equity investments (including derivatives) supporting insurance contracts and surplus portfolios; and

b.Investment properties supporting insurance contracts and surplus portfolios.

•ACMA – captures the impact of method and assumption changes, and management actions on insurance and reinsurance contracts.

•Other adjustments:

i)Management’s ownership of MFS shares – this adjustment removes the change in fair value and other activity related to MFS common shares owned by management.

ii)Acquisition, integration, and restructuring – expense and income related to acquisition or disposal of a business. Also includes expenses related to restructuring activities.

iii)Intangible asset amortization – removes the amortization expense associated with finite life intangible assets arising from acquisitions or business combinations excluding amortization of software and distribution agreements.

iv)Other – represents items that are unusual or exceptional in nature which management believes are not representative of the long-term performance of the Company.

Underlying EPS (diluted). This measure is used in comparing the profitability across multiple periods and is calculated by dividing underlying net income by weighted average common shares outstanding for diluted EPS, excluding the dilutive impact of convertible instruments. For additional information about the underlying net income, see above. For additional information about the composition of the EPS, please refer to Note 13 of our Interim Consolidated Financial Statements for the period ended March 31, 2024. For additional information about the SLEECS, please refer to Note 12 of our 2023 Annual Consolidated Financial Statements.

(1)For fixed income assets, Underlying Net Income includes credit experience from rating changes on assets measured at FVTPL, and the ECL impact for assets measured at FVOCI.

(2)Underlying net income is based on observable discount curves and exchange rates at the beginning of the period.

(3)Underlying net income for earnings on surplus includes realized gains (losses) on fixed income assets classified as FVOCI.

MANAGEMENT'S DISCUSSION AND ANALYSIS         Sun Life Financial Inc. First Quarter 2024 39

The following table sets out the post-tax amounts that were excluded from our underlying net income (loss) and underlying EPS and provides a reconciliation to our reported net income and EPS based on IFRS.

Reconciliations of Select Net Income Measures

	Quarterly results
($ millions, after-tax)	Q1'24	Q4'23	Q1'23
Underlying net income	875	983	895
Market-related impacts
Equity market impacts	12	8	13
Interest rate impacts(1)	40	(53)	11
Impacts of changes in the fair value of investment properties (real estate experience)	(122)	(148)	(88)
Add: Market-related impacts	(70)	(193)	(64)
Add: Assumption changes and management actions	(7)	(1)	(5)
Other adjustments
Management's ownership of MFS shares	(12)	(11)	17
Acquisition, integration and restructuring(2)(3)(4)(5)	22	(42)	(4)
Intangible asset amortization	(36)	(38)	(33)
Other(6)(7)	46	51	—
Add: Total of other adjustments	20	(40)	(20)
Reported net income - Common shareholders	818	749	806
Underlying EPS (diluted) ($)	1.50	1.68	1.52
Add: Market-related impacts ($)	(0.13)	(0.33)	(0.10)
Assumption changes and management actions ($)	(0.01)	—	(0.01)
Management's ownership of MFS shares ($)	(0.02)	(0.02)	0.03
Acquisition, integration and restructuring ($)	0.04	(0.07)	(0.01)
Intangible asset amortization ($)	(0.06)	(0.07)	(0.06)
Other ($)	0.08	0.09	—
Reported EPS (diluted) ($)	1.40	1.28	1.37

(1)Our results are sensitive to long term interest rates given the nature of our business and to non-parallel yield curve movements (for example flattening, inversion, steepening, etc.).

(2)Amounts relate to acquisition costs for our SLC Management affiliates, BentallGreenOak, InfraRed Capital Partners, Crescent Capital Group LP and Advisors Asset Management, Inc, which include the unwinding of the discount for Other financial liabilities of $22 million in Q1'24 (Q4'23 - $24 million, Q1'23 - $20 million).

(3)Includes integration costs associated with DentaQuest, acquired on June 1, 2022.

(4)To meet regulatory obligations, in Q1'24 we sold 6.3% of our ownership interest in Aditya Birla Sun Life AMC Limited, generating a gain of
$84 million. As a result of the transaction, our ownership interest in ABSLAMC was reduced from 36.5% to 30.2% for gross proceeds of $136 million.

(5)Includes a $65 million gain on the sale of the sponsored markets business in Canada in Q1'23.

(6)Relates to the early termination of a distribution agreement in Asset Management in Q1'24.

(7)On December 27, 2023, Bermuda enacted its Corporate Income Tax Act 2023, which will apply a 15% income tax beginning on January 1, 2025 ("Bermuda Corporate Income Tax Change"). The enacted legislation provides an economic transition adjustment that aligns an entity’s starting point for the tax regime more closely with its economic position prior to the application of the Corporate Income Tax 2023. The benefit of this economic transition adjustment has been recognized in 2023. As a result, reported net income increased by $51 million in Q4'23, reflected in Other adjustments.

40 Sun Life Financial Inc. First Quarter 2024         MANAGEMENT'S DISCUSSION AND ANALYSIS

The following table shows the pre-tax amount of underlying net income adjustments:

	Quarterly results
($ millions)	Q1'24	Q4'23	Q1'23
Underlying net income (after-tax)	875	983	895
Underlying net income adjustments (pre-tax):
Add: Market-related impacts	(26)	(436)	(99)
Assumption changes and management actions(1)	(8)	6	(5)
Other adjustments	41	(118)	(10)
Total underlying net income adjustments (pre-tax)	7	(548)	(114)
Add: Taxes related to underlying net income adjustments	(64)	314	25
Reported net income - Common shareholders (after-tax)	818	749	806

(1)In this document, the reported net income impact of ACMA excludes amounts attributable to participating policyholders and includes non-liability impacts. In contrast, the net income impacts of method and assumption changes in the Interim Consolidated Financial Statements for the period ended March 31, 2024 (Note 10.B.v of the 2023 Annual Consolidated Financial Statements) includes amounts attributable to participating policyholders and excludes non-liability impacts.

Taxes related to underlying net income adjustments may vary from the expected effective tax rate range reflecting the mix of business based on the Company's international operations and other tax-related adjustments.

3. Additional Non-IFRS Financial Measures

Management also uses the following non-IFRS financial measures:

After-tax profit margin for U.S. Group Benefits. This ratio expresses U.S. Group Benefits underlying net income as a percentage of net premiums. It assists in explaining our results from period to period and measures profitability. This ratio is calculated by dividing underlying net income (loss) by net premiums for the trailing four quarters. There is no directly comparable IFRS measure.

Assets under administration (in SLC Management). AUA represents Client assets for which Sun Life provides administrative services. In Asset Management, AUA includes assets distributed by SLC Management's affiliate, Advisors Asset Management, Inc. There is no directly comparable IFRS measure.

Assets under management. AUM is a non-IFRS financial measure that indicates the size of our Company's assets across asset management, wealth, and insurance. There is no standardized financial measure under IFRS. In addition to the most directly comparable IFRS measures, which are the balance of General funds and Segregated funds on our Statements of Financial Position, AUM also includes Third-party AUM and Consolidation adjustments. "Consolidation adjustments" is presented separately as consolidation adjustments apply to all components of total AUM.

AUM not yet earning fees. This measure represents the committed uninvested capital portion of total AUM not currently earning management fees. The amount depends on the specific terms and conditions of each fund. There is no directly comparable IFRS measure.

Capital raising. This measure consists of increases in SLC Management's commitments from fund raising activities for all real estate, infrastructure and alternative credit Clients excluding leverage. Investment-grade fixed income capital raising consists of sales made to new Clients. There is no directly comparable IFRS measure.

Cash and other liquid assets. This measure is comprised of cash, cash equivalents, short-term investments, and publicly traded securities, net of loans related to acquisitions that are held at SLF Inc. (the ultimate parent company), and its wholly owned holding companies. This measure is a key consideration of available funds for capital re-deployment to support business growth.

($ millions)	As at March 31, 2024	As at December 31, 2023
Cash and other liquid assets (held at SLF Inc. and its wholly owned holding companies):
Cash, cash equivalents & short-term securities	495	712
Debt securities(1)	1,162	1,228
Equity securities(2)	105	102
Sub-total	1,762	2,042
Less: Loans related to acquisitions (held at SLF Inc. and its wholly owned holding companies)	(277)	(411)
Cash and other liquid assets (held at SLF Inc. and its wholly owned holding companies)	1,485	1,631

(1)Includes publicly traded bonds.

(2)Includes ETF Investments.

Constant currency. We remove the impacts of foreign exchange translation from certain IFRS and non-IFRS measures to assist in comparing our results from period to period. The impacts of foreign exchange translation is approximated by using the foreign exchange rates in effect during the comparative period, using the average or period end foreign exchange rates, as appropriate.

MANAGEMENT'S DISCUSSION AND ANALYSIS         Sun Life Financial Inc. First Quarter 2024 41

CSM Movement Analysis includes certain non-IFRS financial measures, detailed below, and also presents certain measures on a net basis to reflect how the business is managed, compared to a gross basis in the Consolidated Financial Statements. Examples include i) The impacts of insurance contracts issued is presented net of reinsurance; ii) Impact of new business is presented net of acquisition expense gain/loss; and iii) Certain methodology changes are presented as an impact of change in assumptions, whereas the Consolidated Financial Statement presentation is a contract modification.

•Organic CSM Movement is comprised of the Impact of new insurance business, Expected movements from asset returns & locked-in rates, Insurance experience gains/losses, and CSM recognized for services provided.

•Impact of new insurance business on CSM, also referred to as "new business CSM", represents growth from sales activity in the period, including individual protection sales (excluding joint ventures), and defined benefit solutions and segregated fund wealth sales in Canada. New business CSM is presented net of acquisition expense gain/loss.

•Expected movements from asset returns & locked-in rates applies to variable fee approach ("VFA") and general measurement approach ("GMA") contracts. For VFA contracts, this component of the CSM movement analysis is comprised of two factors: (i) the expected return on underlying assets and (ii) the measurement of financial guarantees. The difference between actual and expected results are reported as the impact of markets. For GMA contracts, this component of the CSM includes the accretion of the CSM balance at locked-in rates, which refer to the term structure associated with locked-in discount rates, set when the insurance contract was sold or on transition to IFRS 17. Average locked-in rates increase with the passage of time on in-force business and new business added at current rates.

•Impact of markets & other includes the difference between actual and expected movement for VFA contracts for: (i) the return on underlying assets and (ii) the measurement of financial guarantees. Also includes other amounts excluded from Organic CSM Movement.

•Insurance experience gains/losses represents the current period impacts of insurance experience, resulting in a change in future cash flows that adjust CSM.

•Impact of change in assumptions represents the future period impacts of changes in fulfilment cash flows that adjust CSM.

•CSM market sensitivities. CSM market sensitivities are non-IFRS financial measures for which there are no directly comparable measures under IFRS so it is not possible to provide a reconciliation of these amounts to the most directly comparable IFRS measures.

Deployment. This measure represents the amount of capital that has been invested in the period, including leverage where applicable. Deployment also includes capital committed in infrastructure deals to be invested in specific assets. There is no directly comparable IFRS measure.

Drivers of Earnings. The Drivers of Earnings ("DOE") analysis provides additional detail on the sources of earnings, primarily for protection and health businesses, and explains the actual results compared to the longer term expectations. The DOE is presented on a reported and underlying common shareholders' basis. Within the net insurance service result, the underlying DOE provides detail on expected insurance earnings, impact of new insurance business and experience gains (losses). Within the net investment result, the underlying DOE provides detail on expected investment earnings, credit experience, earnings on surplus, and joint ventures & other. For more information, refer to the headings "Underlying net income and Underlying EPS", "Earnings on surplus", "Notable items attributable to reported and underlying net income", in this document.

Certain amounts in the DOE are presented on a net basis to reflect how the business is managed, compared to a gross basis in the Consolidated Financial Statements. Examples include: i) Net investment result and Other expenses of the Asset Management operating segment are combined with Fee Income to report the net contribution to earnings; ii) Income for fee-based businesses is reported net of the associated expenses; iii) Carried interest in SLC Management within Fee Income excludes the carried interest that Sun Life does not participate in economically, and nets the non-controlling interest portion of the carried interest against fee income and expenses of consolidated funds; iv) Net investment results include assets returns net of the crediting rate for investment contract liabilities and the unwinding of and changes in the discount rate for insurance contract liabilities; v) Earnings on surplus reflects net spread earned from investment strategies; vi) Earnings attributable to the participating account are excluded; and vii) Assumption changes and management actions combines the amounts included in Net insurance service result and Net investment result.

Earnings on Surplus. This component of the Drivers of Earnings represents the net income earned on a company’s surplus funds. Earnings on Surplus is comprised of realized gains on fair value through other comprehensive income assets, as well as net investment returns on surplus, such as investment income, gains (losses) on seed investments and investment properties mark-to-market, and also includes impacts from derivatives, currency and other items.

Experience-related items attributable to reported net income and underlying net income. These notable items attributable to reported net income and underlying net income are components of the Drivers of Earnings represents gains and losses that are due to differences between the actual results during the reporting period and management’s estimate of the expected longer-term returns on assets and liabilities (i.e. expected insurance earnings and expected investment earnings) at the start of the reporting period.

Fee earning AUM. FE AUM consists of assets managed by SLC Management, which are beneficially owned by Clients, on which we earn management fees for providing investment management, property management or advisory-related services. There is no directly comparable IFRS measure.

Fee-related earnings and Operating income. Fee-related earnings represent profitability of SLC Management's fee-related portfolios, and is calculated as Fee-related revenue less Fee-related expenses. Operating income represents profit realized from our business operations, and is calculated as the sum of Fee-related earnings, Investment income (loss) and performance fees, and Interest and other. Fee-related revenue represents all fee income, with the exception of performance fees, generated from third-party investors. Fee-related expenses represent all expenses directly related to generating fee revenue from third-party investors. Investment income (loss) and performance fees represent total income or loss from our seed investments, net of the related expenses. Interest and other represents performance fee compensation, our net interest income or expense and income from managing the General Account assets.

42 Sun Life Financial Inc. First Quarter 2024         MANAGEMENT'S DISCUSSION AND ANALYSIS

Fee-related earnings and Operating income are non-IFRS financial measures within SLC Management's Supplemental Income Statement, which enhances the comparability of SLC Management's results with publicly traded alternative asset managers. For more details, see our Supplementary Financial Information package for the quarter.

The following table provides a reconciliation from Fee-related earnings and Operating income to SLC Management's Fee income and Total expenses based on IFRS.

SLC Management	Quarterly results
($ millions)	Q1'24	Q4'23	Q1'23
Fee income (per IFRS)	561	503	369
Less: Non-fee-related revenue adjustments(1)(2)	258	181	86
Fee-related revenue	303	322	283
Total expenses (per IFRS)	471	440	336
Less: Non-fee-related expense adjustments(2)(3)	237	210	121
Fee-related expenses	234	230	215
Fee-related earnings	69	92	68
Add: Investment income (loss) and performance fees(4)	5	57	5
Add: Interest and other(5)	(28)	(39)	(32)
Operating income	46	110	41

(1)Includes Interest and other - fee income, Investment income (loss) and performance fees - fee income, and Other - fee income.

(2)Excludes the income and related expenses for certain property management agreements to provide more accurate metrics on our fee-related business.

(3)Includes Interest and other, Placement fees - other, Amortization of intangibles, Acquisition, integration and restructuring, and Other - expenses.

(4)Investment income (loss) and performance fee in SLC Management's Supplemental Income Statement relates to the underlying results of our seed investments. As such, we have excluded non-underlying market-related impacts as well as the gains or losses of certain non-seed hedges that are reported under Net investment income (loss) under IFRS. The reconciliation is as follows (amounts have been adjusted for rounding):

	Quarterly results
($ millions)	Q1'24	Q4'23	Q1'23
Net investment income (loss) (per IFRS)	22	28	8
Less: Market-related impacts and Other - Investment income (loss)	18	3	4
Add: Investment income (loss) and performance fees - fee income	1	32	1
Investment income (loss) and performance fees	5	57	5

(5)Includes Interest and other reported under Fee income under IFRS, net of Interest and other reported under Total expenses under IFRS.

Financial leverage ratio. This ratio is an indicator of the Company's balance sheet strength measured by its proportion of capital qualifying debt in accordance with OSFI guidelines. This is calculated as the ratio of total debt plus preferred shares to total capital including the contractual service margin net of taxes, where debt consists of all capital-qualifying debt securities. Capital-qualifying debt securities consist of subordinated debt and innovative capital instruments. The CSM is included net of taxes because debts are repaid and serviced from available after-tax funds.

Impacts of foreign exchange translation. To assist in comparing our results from period-to-period, the favourable or unfavourable impacts of foreign exchange translation are approximated using the foreign exchange rates, in effect during the comparative period, for several IFRS and Non-IFRS financial measures using the average or period end foreign exchange rates, as appropriate. Items impacting a reporting period, such as Revenue, Expenses, and Reported net income (loss) in our Consolidated Statements of Operations, as well as underlying net income (loss), and sales, are translated into Canadian dollars using average exchange rates for the appropriate daily, monthly, or quarterly period. For Assets and Liabilities in our Consolidated Statements of Financial Position, as well as the AUM and certain components of the Drivers of Earnings disclosure, period-end rates are used for currency translation purposes.

LICAT market sensitivities. LICAT market sensitivities are non-IFRS financial measures for which there are no directly comparable measures under IFRS so it is not possible to provide a reconciliation of these amounts to the most directly comparable IFRS measures.

Pre-tax fee related earnings margin. This ratio is a measure of SLC Management's profitability in relation to funds that earn recurring fee revenues, while excluding investment income and performance fees. The ratio is calculated by dividing fee-related earnings by fee-related revenues and is based on the last twelve months. There is no directly comparable IFRS measure.

Pre-tax net operating margin. This ratio is a measure of the profitability and there is no directly comparable IFRS measure. For MFS, this ratio is calculated by excluding management's ownership of MFS shares and certain commission expenses that are offsetting. These commission expenses are excluded in order to neutralize the impact these items have on the pre-tax net operating margin and have no impact on the profitability of MFS. For SLC Management, the ratio is calculated by dividing the total operating income by fee-related revenue plus investment Income (loss) and performance fees, and is based on the last twelve months.

MANAGEMENT'S DISCUSSION AND ANALYSIS         Sun Life Financial Inc. First Quarter 2024 43

The following table provides a reconciliation to calculate MFS' pre-tax net operating margin:

MFS	Quarterly results
(US$ millions)	Q1'24	Q4'23	Q1'23
Revenue
Fee income (per IFRS)	826	790	787
Less: Commissions	99	97	99
Less: Other(1)	(13)	(13)	(13)
Adjusted revenue	740	706	701
Expenses
Expenses (per IFRS)	613	570	544
Net investment (income)/loss (per IFRS)	(30)	(29)	(20)
Less: Management's ownership of MFS shares (net of NCI)(2)	18	18	(2)
Compensation-related equity plan adjustments	12	10	—
Commissions	99	97	99
Other(1)	(11)	(11)	(16)
Adjusted expenses	465	427	443
Pre-tax net operating margin	37.2%	39.4%	36.8%

(1)Other includes accounting basis differences, such as sub-advisory expenses and product allowances.

(2)Excluding non-controlling interest. For more information on Management's ownership of MFS shares, see the heading Underlying Net Income and Underlying EPS.

Return on equity.IFRS does not prescribe the calculation of ROE and therefore a comparable measure under IFRS is not available. To determine reported ROE and underlying ROE, respectively, reported net income (loss) and underlying net income (loss) is divided by the total weighted average common shareholders’ equity for the period. The ROE provides an indication of the overall profitability of the Company. The quarterly ROE is annualized.

Sales and flows.Asset Management gross flows includes funds from retail and institutional Clients; SLC Management gross flows include capital raising, such as uncalled capital commitments and fund leverage. Asset Management net flows consist of gross flows less gross outflows; SLC Management's net flows do not include Client distributions from the sale of underlying assets in closed-end funds. In Canada and in Asia, net sales consist of wealth sales & asset management gross flows less redemptions. In Canada, wealth sales & asset management gross flows consist of sales in Group Retirement Services and Individual Wealth; group - health & protection sales consist of workplace benefits sold by Sun Life Health; and individual - protection sales refer to individual insurance sales. In the U.S., group - health & protection sales consist of sales by Group Benefits and Dental. In Asia, wealth sales & asset management gross flows consist of Hong Kong wealth sales & asset management gross flows, Philippines mutual fund sales, wealth sales & asset management gross flows by our India and China joint ventures and associates, and Aditya Birla Sun Life AMC Limited's equity and fixed income mutual fund sales based on our proportionate equity interest, including sales as reported by our bank distribution partners; individual - protection sales consist of the individual insurance sales, by our subsidiaries and joint ventures and associates, based on our proportionate equity interest, in the Philippines, Indonesia, India, China, Malaysia, Vietnam, International, Hong Kong and Singapore. Asia also has group - health & protection sales in the Philippines, Hong Kong and our joint ventures. To provide greater comparability across reporting periods, we exclude the impacts of foreign exchange translation from sales and gross flows. There is no directly comparable IFRS measure.

Third-party AUM. Third-party AUM is composed of retail, institutional, and other third party assets, which includes general fund and segregated fund assets managed by our joint ventures. In Asset Management, third-party AUM includes Client assets for retail and institutional Clients, as well as capital raising, such as uncalled commitments and fund leverage in SLC Management. In Canada, third-party AUM includes Client assets in retail mutual fund products of Sun Life Global Investments. In Asia, third-party AUM includes Client assets in Hong Kong managed fund products, International wealth & asset management products, Philippines mutual and managed fund products, Aditya Birla Sun Life AMC Limited equity and fixed income mutual fund products, Sun Life Everbright Asset Management products and our joint ventures’ general fund and segregated fund assets based on our proportionate equity interest. There is no directly comparable IFRS financial measure.

Total weighted premium income ("TWPI"). This measure consists of 100% renewal premiums, 100% of first year premiums, and 10% of single premiums. In contrast to sales, which only includes premiums from new business, TWPI includes renewal premiums, reflecting the strength of the in-force block and providing a better understanding of both new and existing business. There is no directly comparable IFRS measure.

Underlying dividend payout ratio. This is the ratio of dividends paid per share to diluted underlying EPS for the period. The ratio is utilized during the medium-term capital budgeting process to inform our planned capital initiatives. We target an underlying dividend payout ratio of between 40% and 50% based on underlying EPS. For more information, see Section J - Capital and Liquidity Management in the 2023 Annual MD&A.

Underlying effective tax rate. This measure is calculated using the pre-tax underlying net income and the income tax expense associated with it. Our statutory tax rate is normally reduced by various tax benefits, such as lower taxes on income subject to tax in foreign jurisdictions, a range of tax-exempt investment income, and other sustainable tax benefits. Our effective tax rate helps in the analysis of the income tax impacts in the period.

44 Sun Life Financial Inc. First Quarter 2024         MANAGEMENT'S DISCUSSION AND ANALYSIS

4. Reconciliations of Select Non-IFRS Financial Measures

Underlying Net Income to Reported Net Income Reconciliation - Pre-tax by Business Group

	Q1'24
($ millions)	Asset Management	Canada	U.S.	Asia	Corporate	Total
Underlying net income (loss)	282	310	189	177	(83)	875
Add: Market-related impacts (pre-tax)	2	45	(53)	(16)	(4)	(26)
ACMA (pre-tax)	—	(7)	2	(3)	—	(8)
Other adjustments (pre-tax)	26	(8)	(67)	90	—	41
Tax expense (benefit)	(26)	(50)	26	(13)	(1)	(64)
Reported net income (loss) - Common shareholders	284	290	97	235	(88)	818
	Q4'23
Underlying net income (loss)	331	350	253	143	(94)	983
Add: Market-related impacts (pre-tax)	(11)	(223)	(60)	(142)	—	(436)
ACMA (pre-tax)	—	72	(65)	(1)	—	6
Other adjustments (pre-tax)	(39)	(6)	(65)	(8)	—	(118)
Tax expense (benefit) on above items	16	155	38	52	53	314
Reported net income (loss) - Common shareholders	297	348	101	44	(41)	749
	Q1'23
Underlying net income (loss)	282	316	237	141	(81)	895
Add: Market-related impacts (pre-tax)	(7)	(92)	(21)	17	4	(99)
ACMA (pre-tax)	—	(2)	—	(6)	3	(5)
Other adjustments (pre-tax)	(23)	94	(71)	(6)	(4)	(10)
Tax expense (benefit)	2	13	23	(12)	(1)	25
Reported net income (loss) - Common shareholders	254	329	168	134	(79)	806

Underlying Net Income to Reported Net Income Reconciliation - Pre-tax by Business Unit - Asset Management

	Q1'24		Q4'23		Q1'23
($ millions)	MFS	SLC Management	MFS	SLC Management	MFS	SLC Management
Underlying net income (loss)	254	28	261	70	254	28
Add: Market-related impacts (pre-tax)	—	2	—	(11)	—	(7)
Other adjustments (pre-tax)	(8)	34	(7)	(32)	21	(44)
Tax expense (benefit)	(4)	(22)	(4)	20	(4)	6
Reported net income (loss) - Common shareholders	242	42	250	47	271	(17)

Underlying Net Income to Reported Net Income Reconciliation - Pre-tax in U.S. dollars

	Q1'24		Q4'23		Q1'23
(US$ millions)	U.S.	MFS	U.S.	MFS	U.S.	MFS
Underlying net income (loss)	141	189	187	191	176	188
Add: Market-related impacts (pre-tax)	(41)	—	(42)	—	(21)	—
ACMA (pre-tax)	2	—	(49)	—	—	—
Other adjustments (pre-tax)	(51)	(6)	(47)	(5)	(51)	15
Tax expense (benefit)	20	(3)	28	(3)	21	(3)
Reported net income (loss) - Common shareholders	71	180	77	183	125	200

MANAGEMENT'S DISCUSSION AND ANALYSIS         Sun Life Financial Inc. First Quarter 2024 45

Underlying Net Income to Reported Net Income Reconciliation - U.S. Group Benefits - Pre-tax in U.S. dollars

The following table sets out the amounts that were excluded from our reported net income (loss) for U.S. Group Benefits, which is used to calculate the trailing four-quarter after-tax profit margin for U.S. Group Benefits.

(US$ millions)	Q1'24	Q4'23	Q3'23	Q2'23	Q1'23	Q4'22(1)	Q3'22(1)	Q2'22(1)
Underlying net income (loss) for U.S. Group Benefits	118	138	96	116	128	119	101	87
Add: Market-related impacts (pre-tax)(1)	(8)	14	(10)	(6)	4	(1)	(24)	(10)
ACMA (pre-tax)	—	(11)	47	—	—	8	(7)	—
Other adjustments (pre-tax)	(7)	(9)	(6)	(6)	(5)	(5)	(4)	(6)
Tax expense (benefit)	3	1	(6)	2	1	(2)	8	4
Reported net income (loss) - Common shareholders	106	133	121	106	128	119	74	75

(1)2022 results have been restated for the adoption of IFRS 17 and the related IFRS 9 classification overlay (“the new standards”). The restated results may not be fully representative of our future earnings profile, as we were not managing our asset and liability portfolios under the new standards. The majority of the actions taken to re-balance asset portfolios and transition asset-liability management execution to an IFRS 17 basis occurred in Q1'23. Accordingly, analysis based on 2022 comparative results may not necessarily be indicative of future trends, and should be interpreted with this context.

O. Forward-looking Statements

From time to time, the Company makes written or oral forward-looking statements within the meaning of certain securities laws, including the “safe harbour” provisions of the United States Private Securities Litigation Reform Act of 1995 and applicable Canadian securities legislation. Forward-looking statements contained in this document include statements (i) relating to our strategies, plans, targets, goals and priorities; (ii) relating to our growth initiatives and other business objectives; (iii) relating to the expected impact of the Pillar Two legislation on the effective tax rate on underlying net income; (iv) set out in this document under the heading I - Risk Management - Market Risk Sensitivities - Interest Rate Sensitivities; (v) relating to expected changes in our LICAT ratio; (vi) that are predictive in nature or that depend upon or refer to future events or conditions; and (xviii) that include words such as “achieve”, “aim”, “ambition”, “anticipate”, “aspiration”, “assumption”, “believe”, “could”, “estimate”, “expect”, “goal”, “initiatives”, “intend”, “may”, “objective”, “outlook”, “plan”, “project”, “seek”, “should”, “strategy”, “strive”, “target”, “will”, and similar expressions. Forward-looking statements include the information concerning our possible or assumed future results of operations. These statements represent our current expectations, estimates, and projections regarding future events and are not historical facts, and remain subject to change.

Forward-looking statements are not a guarantee of future performance and involve risks and uncertainties that are difficult to predict. Future results and shareholder value may differ materially from those expressed in these forward-looking statements due to, among other factors, the matters set out in this document under the headings C - Profitability - 5 - Income taxes, F - Financial Strength and I - Risk Management and in SLF Inc.’s 2023 AIF under the heading Risk Factors, and the factors detailed in SLF Inc.’s other filings with Canadian and U.S. securities regulators, which are available for review at www.sedarplus.ca and www.sec.gov, respectively.

Important risk factors that could cause our assumptions and estimates, and expectations and projections to be inaccurate and our actual results or events to differ materially from those expressed in or implied by the forward-looking statements contained in this document, are set out below. The realization of our forward-looking statements essentially depends on our business performance which, in turn, is subject to many risks. Factors that could cause actual results to differ materially from expectations include, but are not limited to: market risks - related to the performance of equity markets; changes or volatility in interest rates or credit spreads or swap spreads; real estate investments; fluctuations in foreign currency exchange rates; and inflation; insurance risks - related to mortality experience, morbidity experience and longevity; policyholder behaviour; product design and pricing; the impact of higher-than-expected future expenses; and the availability, cost and effectiveness of reinsurance; credit risks - related to issuers of securities held in our investment portfolio, debtors, structured securities, reinsurers, counterparties, other financial institutions and other entities; business and strategic risks - related to global economic and geopolitical conditions; the design and implementation of business strategies; changes in distribution channels or Client behaviour including risks relating to market conduct by intermediaries and agents; the impact of competition; the performance of our investments and investment portfolios managed for Clients such as segregated and mutual funds; shifts in investing trends and Client preference towards products that differ from our investment products and strategies; changes in the legal or regulatory environment, including capital requirements and tax laws; the environment, environmental laws and regulations; operational risks - related to breaches or failure of information system security and privacy, including cyber-attacks; our ability to attract and retain employees; legal, regulatory compliance and market conduct, including the impact of regulatory inquiries and investigations; the execution and integration of mergers, acquisitions, strategic investments and divestitures; our information technology infrastructure; a failure of information systems and Internet-enabled technology; dependence on third-party relationships, including outsourcing arrangements; business continuity; model errors; information management; liquidity risks - the possibility that we will not be able to fund all cash outflow commitments as they fall due; and other risks - changes to accounting standards in the jurisdictions in which we operate; risks associated with our international operations, including our joint ventures; market conditions that affect our capital position or ability to raise capital; downgrades in financial strength or credit ratings; and tax matters, including estimates and judgements used in calculating taxes.

The Company does not undertake any obligation to update or revise its forward-looking statements to reflect events or circumstances after the date of this document or to reflect the occurrence of unanticipated events, except as required by law.

46 Sun Life Financial Inc. First Quarter 2024         MANAGEMENT'S DISCUSSION AND ANALYSIS

CONSOLIDATED STATEMENTS OF OPERATIONS

	For the three months ended
(unaudited, in millions of Canadian dollars, except for per share amounts)	March 31, 2024			March 31, 2023
Insurance service result
Insurance revenue (Note 7)		$	5,540		$	5,282
Insurance service expenses		(4,840)			(4,564)
Reinsurance contract held net income (expenses)		61			(30)
Net insurance service result		761			688
Investment result
Investment result excluding result for account of segregated fund holders:
Net investment income (loss) (Note 5)		(677)			4,800
Insurance finance income (expenses) from insurance contracts issued		1,376			(4,371)
Insurance finance income (expenses) from reinsurance contracts held		9			63
Decrease (increase) in investment contract liabilities		(99)			(71)
Net investment result excluding result for account of segregated fund holders		609			421
Investment result for insurance contracts for account of segregated fund holders:
Investment income (loss) on investments for account of segregated fund holders		1,056			812
Insurance finance income (expenses) (Note 11)		(1,056)			(812)
Net investment result for insurance contracts for account of segregated fund holders		—			—
Net investment result		609			421
Fee income (Note 8)		2,012			1,901
Other expenses (income)
Other income		(161)			(102)
Operating expenses and commissions		2,187			1,882
Interest expenses		159			135
Total other expenses (income)		2,185			1,915
Income (loss) before income taxes		1,197			1,095
Less: Income tax expense (benefit) (Note 9)		261			177
Total net income (loss)		936			918
Less: Net income (loss) allocated to the participating account		55			33
Net income (loss) attributable to non-controlling interests		43			59
Shareholders' net income (loss)		838			826
Less: Dividends on preferred shares and distributions on other equity instruments		20			20
Common shareholders' net income (loss)		$	818		$	806
Average exchange rates during the reporting periods: U.S. dollars		1.35			1.35
Earnings (loss) per share (Note 13)
Basic		$	1.40		$	1.37
Diluted		$	1.40		$	1.37
Dividends per common share		$	0.780		$	0.720

The attached notes form part of these Interim Consolidated Financial Statements.

INTERIM CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) Sun Life Financial Inc. First Quarter 2024 47

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

	For the three months ended
(unaudited, in millions of Canadian dollars)	March 31, 2024			March 31, 2023
Total net income (loss)		$	936		$	918
Other comprehensive income (loss), net of taxes:
Items that may be reclassified subsequently to income:
Change in unrealized foreign currency translation gains (losses):
Unrealized gains (losses)		292			(2)
Change in unrealized gains (losses) on investments at fair value through other comprehensive income:
Unrealized gains (losses)		(31)			259
Reclassifications to net income (loss) and provision for credit losses recognized into income		(17)			(31)
Change in unrealized gains (losses) on cash flow hedges:
Unrealized gains (losses)		27			(10)
Reclassifications to net income (loss)		(25)			4
Share of other comprehensive income (loss) in joint ventures and associates:
Unrealized gains (losses)		115			1
Total items that may be reclassified subsequently to income		361			221
Items that will not be reclassified subsequently to income:
Remeasurement of defined benefit plans		7			(37)
Share of other comprehensive income (loss) in joint ventures and associates		(9)			8
Revaluation of property, plant and equipment		—			1
Total items that will not be reclassified subsequently to income		(2)			(28)
Total other comprehensive income (loss)		359			193
Total comprehensive income (loss)		1,295			1,111
Less: Comprehensive income (loss) allocated to the participating account		53			33
Non-controlling interests' comprehensive income (loss)		48			55
Shareholders’ comprehensive income (loss)		$	1,194		$	1,023

INCOME TAXES INCLUDED IN OTHER COMPREHENSIVE INCOME (LOSS)

	For the three months ended
(unaudited, in millions of Canadian dollars)	March 31, 2024			March 31, 2023
Income tax benefit (expense):
Items that may be reclassified subsequently to income:
Unrealized foreign currency translation gains (losses)		$	(2)		$	—
Change in unrealized gains (losses) on investments at fair value through other comprehensive income:
Unrealized gains (losses)		12			(35)
Reclassifications to net income (loss) and provision for credit losses recognized into income		3			5
Unrealized gains (losses) on cash flow hedges		(3)			4
Reclassifications to net income for cash flow hedges		3			(1)
Total items that may be reclassified subsequently to income		13			(27)
Items that will not be reclassified subsequently to income:
Remeasurement of defined benefit plans		(3)			14
Total items that will not be reclassified subsequently to income		(3)			14
Total income tax benefit (expense) included in other comprehensive income (loss)		$	10		$	(13)

The attached notes form part of these Interim Consolidated Financial Statements.

48 Sun Life Financial Inc. First Quarter 2024 INTERIM CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

CONSOLIDATED STATEMENTS OF FINANCIAL POSITION

	As at
(unaudited, in millions of Canadian dollars)	March 31, 2024			December 31, 2023
Assets
Cash, cash equivalents and short-term securities (Note 5)		$	11,265		$	13,173
Debt securities (Note 5)		75,887			75,493
Equity securities (Note 5)		7,750			7,138
Mortgages and loans (Note 5)		54,798			54,600
Derivative assets		1,504			2,183
Other financial invested assets (Note 5)		10,943			10,361
Financial assets		162,147			162,948
Investment properties (Note 5)		9,555			9,723
Other non-financial invested assets (Note 5)		1,713			1,657
Invested assets		173,415			174,328
Other assets		7,475			6,462
Reinsurance contract held assets (Note 7)		5,745			5,794
Insurance contract assets (Note 7)		180			184
Deferred tax assets		3,939			3,878
Intangible assets		5,142			5,174
Goodwill		9,090			8,969
Total general fund assets		204,986			204,789
Investments for account of segregated fund holders (Note 11)		135,541			128,452
Total assets		$	340,527		$	333,241
Liabilities and equity
Liabilities
Insurance contract liabilities excluding those for account of segregated fund holders (Note 7)		$	134,909		$	135,669
Reinsurance contract held liabilities (Note 7)		1,536			1,623
Investment contract liabilities (Note 5)		11,757			11,672
Derivative liabilities		1,703			1,311
Deferred tax liabilities		278			281
Other liabilities		23,779			23,655
Senior debentures		200			200
Subordinated debt		6,179			6,178
Total general fund liabilities		180,341			180,589
Insurance contract liabilities for account of segregated fund holders (Note 11)		19,654			19,041
Investment contract liabilities for account of segregated fund holders (Note 11)		115,887			109,411
Total liabilities		$	315,882		$	309,041
Equity
Issued share capital and contributed surplus		$	10,643		$	10,660
Shareholders’ retained earnings and accumulated other comprehensive income		13,386			12,922
Total shareholders’ equity		24,029			23,582
Equity in the participating account		510			457
Non-controlling interests’ equity		106			161
Total equity		$	24,645		$	24,200
Total liabilities and equity		$	340,527		$	333,241
Exchange rates at the end of the reporting periods:              U.S. dollars		1.35			1.32

The attached notes form part of these Interim Consolidated Financial Statements.

Approved on behalf of the Board of Directors on May 9, 2024.

Kevin Strain	Barbara G. Stymiest
Chief Executive Officer	Director

INTERIM CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) Sun Life Financial Inc. First Quarter 2024 49

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY

For the three months ended
(unaudited, in millions of Canadian dollars)	March 31, 2024			March 31, 2023
Shareholders:
Preferred shares and other equity instruments
Balance, beginning and end of period		$	2,239		$	2,239
Common shares (Note 10)
Balance, beginning of period		8,327			8,311
Stock options exercised		12			20
Common shares purchased for cancellation		(34)			—
Balance, end of period		8,305			8,331
Contributed surplus
Balance, beginning of period		94			90
Share-based payments		6			6
Stock options exercised		(1)			(2)
Balance, end of period		99			94
Retained earnings
Balance, beginning of period		12,157			11,729
Transition adjustment — IFRS 9		—			(553)
Balance, beginning of period, after changes in accounting policies		12,157			11,176
Net income (loss)		838			826
Dividends on common shares		(456)			(424)
Dividends on preferred shares and distributions on other equity instruments		(20)			(20)
Common shares purchased for cancellation and other (Note 10)		(254)			—
Changes attributable to acquisition		—			(158)
Balance, end of period		12,265			11,400
Accumulated other comprehensive income (loss), net of taxes (Note 14)
Balance, beginning of period		765			160
Transition adjustment — IFRS 9		—			553
Balance, beginning of period, after changes in accounting policies		765			713
Total other comprehensive income (loss) for the period		356			197
Balance, end of period		1,121			910
Total shareholders’ equity, end of period		$	24,029		$	22,974
Equity in the participating account:
Balance, beginning of period		$	457		$	268
Transition adjustment — IFRS 9		—			2
Balance, beginning of period, after changes in accounting policies		457			270
Net income (loss)		55			33
Total other comprehensive income (loss) for the period (Note 14)		(2)			—
Total equity in the participating account, end of period		$	510		$	303
Non-controlling interests:
Balance, beginning of period		$	161		$	90
Net income (loss)		43			59
Total other comprehensive income (loss) for the period (Note 14)		5			(4)
Distribution to non-controlling interests		(103)			(12)
Total non-controlling interests’ equity, end of period		$	106		$	133
Total equity		$	24,645		$	23,410

The attached notes form part of these Interim Consolidated Financial Statements.

50 Sun Life Financial Inc. First Quarter 2024 INTERIM CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

CONSOLIDATED STATEMENTS OF CASH FLOWS

	For the three months ended
(unaudited, in millions of Canadian dollars)	March 31, 2024			March 31, 2023
Cash flows provided by (used in) operating activities
Income (loss) before income taxes		$	1,197		$	1,095
Adjustments:
Interest expense related to financing activities		99			97
(Decrease) increase in investment contract liabilities		99			71
Changes in insurance contract liabilities and assets		(2,076)			3,653
Changes in reinsurance contract held assets and liabilities		(70)			(33)
Realized and unrealized (gains) losses and foreign currency changes on invested assets		2,510			(3,156)
Sales, maturities and repayments of invested assets		11,896			14,723
Purchases of invested assets		(15,035)			(15,139)
Income taxes received (paid)		(257)			(263)
Mortgage securitization (Note 5)		(2)			—
Other operating activities		(848)			(1,028)
Net cash provided by (used in) operating activities		(2,487)			20
Cash flows provided by (used in) investing activities
Net (purchase) sale of property and equipment		(44)			(68)
Investment in and transactions with joint ventures and associates		3			2
Dividends and other proceeds related to joint ventures and associates		121			—
Acquisitions, net of cash and cash equivalents acquired(1)		—			(232)
Dispositions		—			98
Other investing activities		(64)			(44)
Net cash provided by (used in) investing activities		16			(244)
Cash flows provided by (used in) financing activities
Increase in (repayment of) borrowed funds		9			—
Increase in (repayment of) borrowings from credit facility		(76)			295
Issuance of common shares on exercise of stock options		11			20
Transactions with non-controlling interests		(103)			(12)
Common shares purchased for cancellation		(174)			—
Dividends paid on common and preferred shares		(467)			(436)
Payment of lease liabilities		(42)			(50)
Interest expense paid		(83)			(81)
Net cash provided by (used in) financing activities		(925)			(264)
Changes due to fluctuations in exchange rates		134			(33)
Increase (decrease) in cash and cash equivalents		(3,262)			(521)
Net cash and cash equivalents, beginning of period		11,170			9,372
Net cash and cash equivalents, end of period		7,908			8,851
Short-term securities, end of period		3,215			1,981
Net cash, cash equivalents and short-term securities, end of period (Note 5)		$	11,123		$	10,832

(1)    Consists of total cash consideration paid of $nil, less cash and cash equivalents acquired of $nil for the three months ended March 31, 2024 (March 31, 2023 — $248, less cash and cash equivalents acquired of $16).

The attached notes form part of these Interim Consolidated Financial Statements.

INTERIM CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) Sun Life Financial Inc. First Quarter 2024 51

Condensed Notes to the Interim Consolidated Financial Statements

(Unaudited, in millions of Canadian dollars, except for per share amounts and where otherwise stated. All amounts stated in U.S. dollars are in millions.)

1. General Information

Description of Business

Sun Life Financial Inc. ("SLF Inc.") is a publicly traded company domiciled in Canada and is the holding company of Sun Life Assurance Company of Canada ("Sun Life Assurance"). SLF Inc. and its subsidiaries are collectively referred to as "us", "our", "ours", "we", or "the Company".

Our Interim Consolidated Financial Statements have been prepared in accordance with International Accounting Standard ("IAS") 34 Interim Financial Reporting as issued by the International Accounting Standards Board ("IASB"). We have used accounting policies which are consistent with our accounting policies in our 2023 Annual Consolidated Financial Statements, except as updated in Note 2 below. Our Interim Consolidated Financial Statements should be read in conjunction with our 2023 Annual Consolidated Financial Statements, as interim financial statements do not include all the information incorporated in annual consolidated financial statements prepared in accordance with International Financial Reporting Standards ("IFRS") as issued by the IASB.

2. Changes in Accounting Policies

Our material accounting policies and future changes in accounting policies that are not yet effective for us are disclosed in Notes 1 and 2 of our 2023 Annual Consolidated Financial Statements.

2.A New and Amended International Financial Reporting Standards Adopted in 2024

In September 2022, the IASB issued amendments to IFRS 16 Leases to add subsequent measurement requirements for sale and leaseback transactions that satisfy the requirements in IFRS 15 Revenue from Contracts with Customers to be accounted for as a sale. The amendments require a seller-lessee to subsequently measure lease liabilities arising from a leaseback in a way that it does not recognize any amount of the gain or loss that relates to the right of use it retains. The adoption of this amendment, effective January 1, 2024, did not have a material impact on our Consolidated Financial Statements.

2.B New and Amended International Financial Reporting Standards to be Adopted in 2025 or Later

In April 2024, the IASB issued IFRS 18 Presentation and Disclosure in Financial Statements ("IFRS 18") which replaces IAS 1 Presentation of Financial Statements. IFRS 18 introduces new requirements on presentation within the statement of profit or loss, disclosure of management-defined performance measures, and principles for aggregation and disaggregation of financial information in the financial statements and the notes. IFRS 18 will be effective for annual reporting periods beginning on or after January 1, 2027. IFRS 18 is to be applied retrospectively. We are currently assessing the impact that IFRS 18 will have on our Consolidated Financial Statements.

52 Sun Life Financial Inc. First Quarter 2024 CONDENSED NOTES TO THE INTERIM CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

3. Disposition

On March 21, 2024, we completed the partial disposition of our investment in Aditya Birla Sun Life AMC Limited (“ABSLAMC”). As a result of the disposition, our ownership interest was reduced by 6.3% and we generated gross proceeds of $136, which included a realized gain of approximately $98 (pre-tax). After the disposition, we retained ownership of the listed entity of 30.2%.

4. Segmented Information

We have five reportable business segments: Canada, United States ("U.S."), Asset Management, Asia, and Corporate. These business segments operate in the financial services industry and reflect our management structure and internal financial reporting. Asset Management includes the results of our MFS Investment Management and SLC Management business units. Corporate includes the results of our United Kingdom ("UK") business unit and our Corporate Support operations, which include run-off reinsurance operations, as well as investment income, expenses, capital and other items not allocated to our other business groups. In the second quarter of 2023, we completed the sale of our UK Business unit and have retained our economic interest in the annuity business via a reinsurance arrangement that is reported under the U.S. reportable segment. Effective the third quarter of 2023, the run-off reinsurance operations is reported under the U.S. reportable segment.

Revenues from our business segments are derived primarily from life and health insurance, investment management and annuities, and mutual funds. Revenues not attributed to the strategic business units are derived primarily from Corporate investments and earnings on capital. Transactions between segments are executed and priced at an arm's-length basis in a manner similar to transactions with third parties.

The expenses in each business segment may include costs or services directly incurred or provided on their behalf at the enterprise level. For other costs not directly attributable to one of our business segments, we use a management reporting framework that uses assumptions, judgments, and methodologies for allocating overhead costs and indirect expenses to our business segments.

Intersegment transactions consist primarily of internal financing agreements which are measured at fair values prevailing when the arrangements are negotiated. Intersegment investment income consists primarily of interest paid by U.S. to Corporate. Intersegment fee income is primarily asset management fees paid by our business segments to Asset Management. SLC Management collects fee income and incurs the operational expenses associated with the management of the general fund assets. Intersegment transactions are eliminated in the Consolidation adjustments column in the following tables.

Management considers its external Clients to be individuals and corporations. We are not reliant on any individual Client as none is individually significant to our operations.

CONDENSED NOTES TO THE INTERIM CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) Sun Life Financial Inc. First Quarter 2024 53

For the three months ended	Canada			U.S.		Asset Management			Asia		Corporate			Consolidation adjustments			Total
March 31, 2024
Insurance revenue:
Annuities		$	499	$	75		$	—	$	7		$	—		$	—		$	581
Life insurance		570		501			—		289			—			—			1,360
Health insurance		1,064		2,478			—		57			—			—			3,599
Total Insurance revenue		2,133		3,054			—		353			—			—			5,540
Net investment income (loss)		(1,006)		(102)			67		327			63			(26)			(677)
Fee income		407		116			1,513		71			39			(134)			2,012
Segment revenue(1)		1,534		3,068			1,580		751			102			(160)			6,875
Expenses:
Insurance service expenses		1,819		2,833			—		188			—			—			4,840
Reinsurance contract held net (income) expenses		1		(69)			—		7			—			—			(61)
Insurance finance (income) expenses from insurance contracts issued		(1,356)		(150)			—		130			—			—			(1,376)
Reinsurance finance (income) expenses		(28)		25			—		(6)			—			—			(9)
(Decrease) increase in investment contract liabilities		97		—			—		2			—			—			99
Other income(2)		—		—			(161)		—			—			—			(161)
Interest expenses		57		27			47		27			29			(28)			159
Operating expenses and commissions		484		275			1,253		116			191			(132)			2,187
Total expenses(1)		1,074		2,941			1,139		464			220			(160)			5,678
Income (loss) before income taxes		460		127			441		287			(118)			—			1,197
Less: Income tax expense (benefit)		144		25			114		28			(50)			—			261
Total net income (loss)		316		102			327		259			(68)			—			936
Less:
Net income (loss) allocated to the participating account		26		5			—		24			—			—			55
Net income (loss) attributable to non-controlling interests		—		—			43		—			—			—			43
Shareholders' net income (loss)		$	290	$	97		$	284	$	235		$	(68)		$	—		$	838
March 31, 2023
Insurance revenue:
Annuities		$	472	$	—		$	—	$	6		$	90		$	—		$	568
Life insurance		534		460			—		284			12			—			1,290
Health insurance		1,040		2,359			—		22			3			—			3,424
Total Insurance revenue		2,046		2,819			—		312			105			—			5,282
Net investment income (loss)		2,870		698			36		1,021			197			(22)			4,800
Fee income		366		111			1,433		77			40			(126)			1,901
Segment revenue(1)		5,282		3,628			1,469		1,410			342			(148)			11,983
Expenses:
Insurance service expenses		1,734		2,498			—		238			94			—			4,564
Reinsurance contract held net (income) expenses		47		(11)			—		(6)			—			—			30
Insurance finance (income) expenses from insurance contracts issued		2,633		733			—		874			131			—			4,371
Reinsurance finance (income) expenses		14		(84)			—		6			1			—			(63)
(Decrease) increase in investment contract liabilities		71		—			—		1			(1)			—			71
Other income		(102)		—			—		—			—			—			(102)
Interest expenses		44		24			36		15			37			(21)			135
Operating expenses and commissions		420		253			1,037		110			189			(127)			1,882
Total expenses(1)		4,861		3,413			1,073		1,238			451			(148)			10,888
Income (loss) before income taxes		421		215			396		172			(109)			—			1,095
Less: Income tax expense (benefit)		76		42			83		26			(50)			—			177
Total net income (loss)		345		173			313		146			(59)			—			918
Less:
Net income (loss) allocated to the participating account		16		5			—		12			—			—			33
Net income (loss) attributable to non-controlling interests		—		—			59		—			—			—			59
Shareholders' net income (loss)		$	329	$	168		$	254	$	134		$	(59)		$	—		$	826

(1)    Total revenue and Total expenses exclude Investment result for insurance contracts for account of segregated fund holders.

(2)    Relates to the early termination of a distribution agreement. We recognized income of $161 (pre-tax) and $46 (net of taxes, NCI impact and others).

54 Sun Life Financial Inc. First Quarter 2024 CONDENSED NOTES TO THE INTERIM CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

5. Total Invested Assets and Related Net Investment Income

5.A Fair Value of Financial Instruments

5.A.i Carrying Value and Fair Value of Financial Assets and Financial Liabilities

The carrying values and fair values of our financial assets and liabilities are shown in the following table:

As at	March 31, 2024					December 31, 2023
	Carrying value			Fair value		Carrying value			Fair value
Financial assets
Cash, cash equivalents and short-term securities – FVTPL		$	11,265	$	11,265		$	13,173	$	13,173
Debt securities – FVTPL(1)		61,598		61,598			61,180		61,180
Debt securities – FVOCI		14,289		14,289			14,313		14,313
Equity securities – FVTPL		7,680		7,680			7,070		7,070
Equity securities – FVOCI		70		70			68		68
Mortgages and loans – FVTPL(2)		50,665		50,665			50,552		50,552
Mortgages and loans – FVOCI		2,056		2,056			1,948		1,948
Mortgages and loans – Amortized cost(3)		2,077		1,978			2,100		2,006
Derivative assets – FVTPL		1,504		1,504			2,183		2,183
Other financial invested assets (excluding CLOs) – FVTPL(4)		7,159		7,159			6,883		6,883
Other financial invested assets (CLOs) – FVTPL(7)		3,784		3,784			3,478		3,478
Total(5)		$	162,147	$	162,048		$	162,948	$	162,854
Financial liabilities
Investment contract liabilities – Amortized cost		$	11,757	$	11,757		$	11,672	$	11,672
Obligations for securities borrowing – FVTPL		125		125			223		223
Derivative liabilities – FVTPL		1,703		1,703			1,311		1,311
Other financial liabilities – Amortized cost(6)		2,527		2,412			2,449		2,348
Other financial liabilities (CLOs) – FVTPL(7)		3,545		3,545			3,247		3,247
Total(8)		$	19,657	$	19,542		$	18,902	$	18,801

(1)    Includes primarily debt securities that are designated at fair value through profit or loss ("FVTPL").

(2)    Includes primarily mortgages and loans that are designated at FVTPL.

(3)    Certain mortgages and loans are carried at amortized cost. The fair value of these mortgages and loans, for disclosure purposes, is determined based on the methodology and assumptions described in Note 5.A.iii. As at March 31, 2024, $1,952 and $26 are categorized in Level 2 and Level 3, respectively, of the fair value hierarchy described in this Note (December 31, 2023 — $1,994 and $12, respectively).

(4)    Other financial invested assets include our investments in segregated funds, mutual funds, and limited partnerships.

(5)    Invested assets on our Consolidated Statements of Financial Position of $173,415 (December 31, 2023 — $174,328) includes Total financial assets in this table, Investment properties of $9,555 (December 31, 2023 — $9,723), and Other non-financial invested assets of $1,713 (December 31, 2023 — $1,657). Other non-financial invested assets consists of investment in associates, subsidiaries and joint ventures which are not consolidated.

(6)    Amount reflects the obligations to purchase outstanding shares of certain SLC Management subsidiaries.

(7)    See below for details on Collateralized Loan Obligations ("CLOs").

(8)    Total financial liabilities excluding Senior debentures and Subordinated debt.

Collateralized Loan Obligations Structure

Crescent, a subsidiary within our Asset Management business segment, issues and manages CLOs. Each CLO is a special purpose vehicle that owns a portfolio of investments, consisting primarily of senior secured loans, and issues various tranches of senior and subordinated notes to third parties for the purpose of financing the purchase of those investments. Assets of the special purpose vehicle, the senior secured loans, are included in Other financial invested assets and the associated liabilities, the senior and subordinated notes issued to third parties, are included in Other liabilities in our Consolidated Statements of Financial Position.

As at March 31, 2024, the carrying value of the assets related to CLOs are $3,784 (December 31, 2023 — $3,478), which consists of cash and accounts receivable of $268 (December 31, 2023 — $251) and loans of $3,516 (December 31, 2023 — $3,227). These underlying loans are mainly below investment grade.

As at March 31, 2024, the carrying value of the liabilities related to CLOs are $3,545 (December 31, 2023 — $3,247). Our maximum contractual exposure to loss related to the CLOs is limited to our investment of $215 (December 31, 2023 — $192) in the most subordinated tranche. The net unrealized loss incurred to date is $41.

5.A.ii Non-Financial Invested Assets

Non-financial invested assets consist of investment properties, investment in associates, subsidiaries and joint ventures which are not consolidated. As at March 31, 2024, the carrying value and fair value of investment properties was $9,555 (December 31, 2023 — $9,723) and $9,555 (December 31, 2023 — $9,723), respectively. The carrying value of other non-financial invested assets which were measured using the equity method of accounting was $1,713 as at March 31, 2024 (December 31, 2023 — $1,657).

CONDENSED NOTES TO THE INTERIM CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) Sun Life Financial Inc. First Quarter 2024 55

5.A.iii Fair Value Hierarchy

The fair value methodologies and assumptions for assets and liabilities carried at fair value, as well as disclosures on unobservable inputs, sensitivities and valuation processes for Level 3 assets can be found in Note 5 of our 2023 Annual Consolidated Financial Statements.

Our assets and liabilities that are carried at fair value on a recurring basis by hierarchy level are as follows:

As at	March 31, 2024									December 31, 2023
		Level 1		Level 2		Level 3		Total			Level 1		Level 2		Level 3		Total
Assets
Cash, cash equivalents and short-term securities – FVTPL		$	10,447	$	818	$	—	$	11,265		$	12,316	$	857	$	—	$	13,173
Debt securities – FVTPL		581		60,535		482		61,598			564		60,214		402		61,180
Debt securities – FVOCI		502		13,611		176		14,289			651		13,475		187		14,313
Equity securities – FVTPL		4,627		2,937		116		7,680			4,220		2,737		113		7,070
Equity securities – FVOCI		—		—		70		70			—		—		68		68
Mortgages and loans – FVTPL		—		48,573		2,092		50,665			—		48,496		2,056		50,552
Mortgages and loans – FVOCI		—		2,055		1		2,056			—		1,948		—		1,948
Derivative assets – FVTPL		27		1,477		—		1,504			23		2,160		—		2,183
Other financial invested assets (excluding CLOs) – FVTPL(1)		647		200		6,312		7,159			608		201		6,074		6,883
Other financial invested assets (CLOs) – FVTPL(2)		—		3,784		—		3,784			—		3,478		—		3,478
Investment properties – FVTPL		—		—		9,555		9,555			—		—		9,723		9,723
Total invested assets measured at fair value		$	16,831	$	133,990	$	18,804	$	169,625		$	18,382	$	133,566	$	18,623	$	170,571
Investments for account of segregated fund holders – FVTPL		17,205		117,971		365		135,541			16,614		111,497		341		128,452
Total assets measured at fair value		$	34,036	$	251,961	$	19,169	$	305,166		$	34,996	$	245,063	$	18,964	$	299,023
Liabilities
Obligations for securities borrowing – FVTPL		$	3	$	122	$	—	$	125		$	3	$	220	$	—	$	223
Derivative liabilities – FVTPL		5		1,698		—		1,703			10		1,301		—		1,311
Investment contract liabilities for account of segregated fund holders – FVTPL		—		—		115,887		115,887			—		—		109,411		109,411
Other financial liabilities (CLOs) – FVTPL(2)		—		3,545		—		3,545			—		3,247		—		3,247
Total liabilities measured at fair value		$	8	$	5,365	$	115,887	$	121,260		$	13	$	4,768	$	109,411	$	114,192

(1)    Other financial invested assets (excluding CLOs) – FVTPL include our investments in segregated funds, mutual funds, and limited partnerships.

(2)    For details on CLOs, refer to Note 5.A.i.

Debt securities at FVTPL consist of the following:

As at	March 31, 2024								December 31, 2023
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Canadian federal government	$	—	$	5,107	$	14	$	5,121	$	—	$	5,147	$	14	$	5,161
Canadian provincial and municipal government	—		13,593		—		13,593		—		13,694		—		13,694
U.S. government and agency	581		159		—		740		564		148		—		712
Other foreign government	—		3,345		—		3,345		—		3,329		—		3,329
Corporate	—		31,519		384		31,903		—		31,809		340		32,149
Asset-backed securities:
Commercial mortgage-backed securities	—		2,199		—		2,199		—		2,029		5		2,034
Residential mortgage-backed securities	—		2,715		—		2,715		—		2,335		—		2,335
Collateralized debt obligations	—		211		—		211		—		188		—		188
Other	—		1,687		84		1,771		—		1,535		43		1,578
Total debt securities at FVTPL	$	581	$	60,535	$	482	$	61,598	$	564	$	60,214	$	402	$	61,180

56 Sun Life Financial Inc. First Quarter 2024 CONDENSED NOTES TO THE INTERIM CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

Debt securities at fair value through other comprehensive income ("FVOCI") consist of the following:

As at	March 31, 2024								December 31, 2023
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Canadian federal government	$	—	$	1,041	$	—	$	1,041	$	—	$	849	$	—	$	849
Canadian provincial and municipal government	—		466		—		466		—		557		—		557
U.S. government and agency	502		8		—		510		651		7		—		658
Other foreign government	—		471		11		482		—		462		11		473
Corporate	—		7,836		75		7,911		—		7,905		75		7,980
Asset-backed securities:
Commercial mortgage-backed securities	—		995		—		995		—		1,017		—		1,017
Residential mortgage-backed securities	—		955		—		955		—		944		—		944
Collateralized debt obligations	—		651		11		662		—		767		13		780
Other	—		1,188		79		1,267		—		967		88		1,055
Total debt securities at FVOCI	$	502	$	13,611	$	176	$	14,289	$	651	$	13,475	$	187	$	14,313

Mortgages and loans at FVTPL consist of the following:

As at	March 31, 2024								December 31, 2023
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Mortgages:
Retail	$	—	$	2,476	$	12	$	2,488	$	—	$	2,524	$	12	$	2,536
Office	—		2,705		—		2,705		—		2,717		—		2,717
Multi-family residential	—		2,918		—		2,918		—		2,986		—		2,986
Industrial	—		2,826		—		2,826		—		2,804		—		2,804
Other	—		1,043		—		1,043		—		1,017		—		1,017
Corporate loans	—		36,605		2,080		38,685		—		36,448		2,044		38,492
Total mortgages and loans at FVTPL	$	—	$	48,573	$	2,092	$	50,665	$	—	$	48,496	$	2,056	$	50,552

Mortgages and loans at FVOCI consist of the following:

As at	March 31, 2024								December 31, 2023
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Mortgages:
Retail	$	—	$	42	$	—	$	42	$	—	$	22	$	—	$	22
Office	—		19		—		19		—		37		—		37
Multi-family residential	—		69		—		69		—		83		—		83
Industrial	—		157		—		157		—		149		—		149
Corporate loans	—		1,768		1		1,769		—		1,657		—		1,657
Total mortgages and loans at FVOCI	$	—	$	2,055	$	1	$	2,056	$	—	$	1,948	$	—	$	1,948

There were no significant transfers between Level 1 and Level 2 for the three months ended March 31, 2024 and March 31, 2023.

CONDENSED NOTES TO THE INTERIM CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) Sun Life Financial Inc. First Quarter 2024 57

The following table provides a reconciliation of the beginning and ending balances for assets that are categorized in Level 3:

For the three months ended	Debt securities at FVTPL			Debt securities at FVOCI			Equity securities at FVTPL			Equity Securities at FVOCI			Mortgages & loans at FVTPL			Mortgages & loans at FVOCI			Other financial invested assets at FVTPL			Investment properties at FVTPL			Total invested assets measured at fair value			Investments for account of segregated fund holders			Total assets measured at fair value
March 31, 2024
Beginning balance		$	402		$	187		$	113		$	68		$	2,056		$	—		$	6,074		$	9,723		$	18,623		$	341		$	18,964
Included in net income(1)(2)(3)		—			—			1			—			(90)			—			81			(166)			(174)			3			(171)
Purchases / Issuances		125			39			2			—			57			—			189			27			439			18			457
Sales / Payments		(14)			—			—			—			(34)			—			(52)			(68)			(168)			(1)			(169)
Settlements		(4)			(8)			—			—			(2)			—			—			—			(14)			—			(14)
Transfers into Level 3(4)		—			—			—			—			104			1			—			—			105			—			105
Transfers (out) of Level 3(4)		(30)			(42)			—			—			—			—			(15)			—			(87)			—			(87)
Foreign currency translation(5)		3			—			—			2			1			—			35			39			80			4			84
Ending balance		$	482		$	176		$	116		$	70		$	2,092		$	1		$	6,312		$	9,555		$	18,804		$	365		$	19,169
Unrealized gains (losses) included in earnings relating to instruments still held(1)		$	—		$	—		$	1		$	—		$	(106)		$	—		$	57		$	(166)		$	(214)		$	—		$	(214)
March 31, 2023
Beginning balance		$	394		$	52		$	101		$	70		$	2,054		$	16		$	5,555		$	10,102		$	18,344		$	631		$	18,975
Included in net income(1)(2)(3)		8			—			(4)			—			78			(5)			(55)			(17)			5			(14)			(9)
Included in OCI(2)		—			3			—			—			—			—			—			—			3			—			3
Purchases / Issuances		51			7			14			—			189			—			331			67			659			16			675
Sales / Payments		(8)			(6)			—			(1)			(26)			—			(64)			—			(105)			(3)			(108)
Settlements		—			—			—			—			(1)			—			—			—			(1)			—			(1)
Transfers into Level 3(4)		—			—			—			—			63			—			—			—			63			—			63
Transfers (out) of Level 3(4)		(75)			(8)			—			—			(158)			—			—			—			(241)			—			(241)
Foreign currency translation(5)		5			1			—			—			—			—			(3)			(4)			(1)			11			10
Ending balance		$	375		$	49		$	111		$	69		$	2,199		$	11		$	5,764		$	10,148		$	18,726		$	641		$	19,367
Unrealized gains (losses) included in earnings relating to instruments still held(1)		$	8		$	—		$	(4)		$	—		$	76		$	(5)		$	(59)		$	(17)		$	(1)		$	(18)		$	(19)

(1)    Included in Net investment income (loss) in our Consolidated Statements of Operations for Total invested assets measured at fair value.

(2)    Total gains and losses in net income (loss) and other comprehensive income ("OCI") are calculated assuming transfers into or out of Level 3 occur at the beginning of the period. For an asset or liability that transfers into Level 3 during the reporting period, the entire change in fair value for the period is included in the table above. For transfers out of Level 3 during the reporting period, the change in fair value for the period is excluded from the table above.

(3)    Investment properties included in net income is comprised of fair value changes on investment properties of $(157) for the three months ended March 31, 2024, (March 31, 2023 — $(11)), net of amortization of leasing commissions and tenant inducements of $9 for the three months ended March 31, 2024, (March 31, 2023 — $6). As at March 31, 2024, we have used assumptions that reflect known changes in the property values including changes in expected future cash flows.

(4)    Transfers into Level 3 occur when the inputs used to price the assets and liabilities lack observable market data, and as a result, no longer meet the Level 1 or 2 definitions at the reporting date. Transfers out of Level 3 occur when the pricing inputs become more transparent and satisfy the Level 1 or 2 criteria and are primarily the result of observable market data being available at the reporting date, thus removing the requirement to rely on inputs that lack observability.

(5)    Foreign currency translation relates to the foreign exchange impact of translating Level 3 assets and liabilities of foreign subsidiaries from their functional currencies to Canadian dollars.

58 Sun Life Financial Inc. First Quarter 2024 CONDENSED NOTES TO THE INTERIM CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

5.B Net Investment Income (Loss)

For the three months ended	March 31, 2024												March 31, 2023
	Financial Instruments at Amortized Cost			Financial Instruments at FVOCI			Financial Instruments at FVTPL			Total			Financial Instruments at Amortized Cost			Financial Instruments at FVOCI			Financial Instruments at FVTPL			Total
Interest income (expense):
Cash, cash equivalents and short-term investments		$	—		$	—		$	146		$	146		$	—		$	—		$	102		$	102
Debt securities		—			151			666			817			—			115			674			789
Mortgages and loans		17			33			648			698			20			23			588			631
Derivative investments		—			—			18			18			—			—			20			20
Other financial invested assets		—			—			76			76			—			55			—			55
Other financial liabilities		(44)			—			(69)			(113)			(80)			—			—			(80)
Total interest income (expense)		(27)			184			1,485			1,642			(60)			193			1,384			1,517
Dividend & other investment income:
Equity securities		—			—			23			23			—			—			20			20
Other financial invested assets		—			—			59			59			—			—			55			55
Total dividend & other investment income		—			—			82			82			—			—			75			75
Net realized and unrealized gains (losses):
Cash, cash equivalents and short-term investments		—			—			3			3			—			—			2			2
Debt securities		—			(55)			(1,399)			(1,454)			—			217			1,833			2,050
Equity securities		—			—			373			373			—			—			300			300
Mortgages and loans		—			—			(414)			(414)			—			17			902			919
Derivative investments		—			—			(1,039)			(1,039)			—			—			161			161
Other financial invested assets		—			1			95			96			—			42			(11)			31
Other financial liabilities		—			—			(32)			(32)			—			—			(4)			(4)
Total net realized and unrealized gains (losses)		—			(54)			(2,413)			(2,467)			—			276			3,183			3,459
Provision for credit losses		—			5			—			5			—			(8)			—			(8)
Net investment income (loss) from financial instruments		$	(27)		$	135		$	(846)		$	(738)		$	(60)		$	461		$	4,642		$	5,043
Net Investment income (loss) from non-financial instruments:
Investment properties rental income											$	164											$	159
Investment properties expenses											(66)												(66)
Investment expenses and taxes											(71)												(74)
Fair value changes on investment properties											(157)												(11)
Other investment income (loss)											199												32
Foreign exchange gains (losses)											46												(33)
Net investment income (loss) from non-financial instruments											$	115											$	7
Total Net investment income (loss)											$	(623)											$	5,050
Net investment income (loss) recognized in income											$	(677)											$	4,800
Net investment income (loss) recognized in OCI											$	54											$	250

CONDENSED NOTES TO THE INTERIM CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) Sun Life Financial Inc. First Quarter 2024 59

5.C Cash, Cash Equivalents and Short-Term Securities

Cash, cash equivalents and short-term securities presented in our Consolidated Statements of Financial Position and Net cash, cash equivalents and short-term securities presented in our Consolidated Statements of Cash Flows consist of the following:

As at	March 31, 2024			December 31, 2023			March 31, 2023
Cash		$	1,893		$	2,001		$	2,613
Cash equivalents		6,157			9,169			6,418
Short-term securities		3,215			2,003			1,981
Cash, cash equivalents and short-term securities		11,265			13,173			11,012
Less: Bank overdraft, recorded in Other liabilities		142			—			180
Net cash, cash equivalents and short-term securities		$	11,123		$	13,173		$	10,832

5.D Mortgage Securitization

We securitize certain insured fixed rate commercial mortgages as described in Note 5 of our 2023 Annual Consolidated Financial Statements.

The carrying value and fair value of the securitized mortgages as at March 31, 2024 are $1,766 and $1,667, respectively (December 31, 2023 — $1,792 and $1,697, respectively). The carrying value and fair value of the associated liabilities as at March 31, 2024 are $2,117 and $2,008, respectively (December 31, 2023 — $2,119 and $2,021, respectively). The carrying value of securities in the principal reinvestment account (''PRA'') as at March 31, 2024 is $359 (December 31, 2023 — $335). There are $1 cash and cash equivalents in the PRA as at March 31, 2024 (December 31, 2023 — $57).

The fair value of the secured borrowings from mortgage securitization is based on the methodologies and assumptions for asset-backed securities described in Note 5 of our 2023 Annual Consolidated Financial Statements. The fair value of these liabilities is categorized in Level 2 of the fair value hierarchy as at March 31, 2024 and December 31, 2023.

6. Financial Instrument Risk Management

The significant risks related to financial instruments are credit risk, market risk (including equity risk, real estate risk, interest rate and spread risk, foreign currency risk, and inflation risk) and liquidity risk. Further details on our financial instrument risk management, including methodologies and assumptions, are described in Notes 1 and 6 of our 2023 Annual Consolidated Financial Statements.

The allowance for ECL was $84 as at March 31, 2024 (December 31, 2023 — $89) and the provision for credit losses was $(5) for the three months ended March 31, 2024 (March 31, 2023 — $8). There were no significant transfers between Stage 1, Stage 2, and Stage 3 for the three months ended March 31, 2024 and March 31, 2023.

60 Sun Life Financial Inc. First Quarter 2024 CONDENSED NOTES TO THE INTERIM CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

7. Insurance Contracts

7.A Changes in Insurance Contracts

7.A.i Changes in Insurance Contracts Issued and Reinsurance Contracts Held Net Asset or Liability

Insurance Contracts Issued By Measurement Component

The following table shows the changes in net liabilities for insurance contracts issued by measurement component, including estimates of present value ("PV") of future cash flows, risk adjustment, and Contractual Service Margin ("CSM"). Changes in the liabilities for insurance contract liabilities for account of segregated fund holders are provided in Note 11. Further details of our measurement approach, including the premium allocation approach ("PAA"), can be found in Note 1 of our 2023 Annual Consolidated Financial Statements.

	For the three months ended and as at March 31, 2024									For the year ended and as at December 31, 2023
	Estimates of PV of future cash flows			Risk adjustment		CSM		Total		Estimates of PV of future cash flows			Risk adjustment		CSM		Total
Insurance contract liabilities — non-PAA, beginning of period		$	99,420	$	7,388	$	11,597	$	118,405		$	96,623	$	6,847	$	10,901	$	114,371
Insurance contract liabilities — PAA, beginning of period		16,436		828				17,264			16,087		836				16,923
Insurance contract assets — non-PAA, beginning of period		(578)		146		248		(184)			(195)		51		69		(75)
Net balances, beginning of period		$	115,278	$	8,362	$	11,845	$	135,485		$	112,515	$	7,734	$	10,970	$	131,219
CSM recognized for services provided						(269)		(269)							(923)		(923)
Risk adjustment recognized for non-financial risk expired				(150)				(150)					(545)				(545)
Changes in estimates that adjust CSM		(262)		(30)		292		—			(1,206)		292		914		—
Contracts initially recognized in the period		(424)		108		340		24			(1,702)		513		1,259		70
Other		40		(89)		(24)		(73)			5,322		376		(375)		5,323
Changes in PAA balance		(289)		1				(288)		—	349		(8)				341
Net balances, end of period		$	114,343	$	8,202	$	12,184	$	134,729		$	115,278	$	8,362	$	11,845	$	135,485
Insurance contract liabilities — non-PAA, end of period(1)		$	98,777	$	7,230	$	11,926	$	117,933		$	99,420	$	7,388	$	11,597	$	118,405
Insurance contract liabilities — PAA, end of period		16,147		829				16,976			16,436		828				17,264
Insurance contract assets — non-PAA, end of period		(581)		143		258		(180)			(578)		146		248		(184)
Net balances, end of period		$	114,343	$	8,202	$	12,184	$	134,729		$	115,278	$	8,362	$	11,845	$	135,485

(1)    Includes liabilities of $(258) (December 31, 2023 — $(105)) for segregated fund insurance contracts that are not backed by the related Investments for account of segregated fund holders.

Reinsurance Contracts Held By Measurement Component

The following table shows the ending balances for reinsurance contracts held by measurement component:

As at	March 31, 2024									December 31, 2023
	Estimates of PV of future cash flows			Risk adjustment		CSM		Total		Estimates of PV of future cash flows			Risk adjustment		CSM		Total
Reinsurance contract held assets — non-PAA, end of period		$	3,827	$	1,409	$	163	$	5,399		$	3,848	$	1,431	$	174	$	5,453
Reinsurance contract held assets — PAA, end of period		333		13				346			324		17				341
Reinsurance contract held liabilities — non-PAA, end of period		(2,226)		810		(120)		(1,536)			(2,355)		847		(115)		(1,623)
Net balances, end of period		$	1,934	$	2,232	$	43	$	4,209		$	1,817	$	2,295	$	59	$	4,171

CONDENSED NOTES TO THE INTERIM CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) Sun Life Financial Inc. First Quarter 2024 61

7.A.ii Analysis of Insurance Revenue

Insurance revenue in the Consolidated Statements of Operations consists of the following:

	For the three months ended
	March 31, 2024			March 31, 2023
For contracts not measured using the PAA:
Amounts relating to changes in liabilities for remaining coverage:
Expected claims and other expenses(1)		$	1,165		$	1,162
Release of risk adjustment(1)		150			122
CSM recognized for services provided		269			225
Income taxes specifically chargeable to the policyholder		—			1
Amortization of insurance acquisition cash flows		87			30
Total insurance revenue for contracts not measured using the PAA		1,671			1,540
For contracts measured using the PAA:
Insurance revenue		3,869			3,742
Total insurance revenue		$	5,540		$	5,282

(1)Expected claims and other expenses excludes investment components and amounts allocated to the loss component. Release of risk adjustment excludes amounts allocated to the loss component and amounts related to changes in the time value of money, which are recognized in Insurance finance income (expenses).

8. Fee Income

	For the three months ended
	March 31, 2024			March 31, 2023
Fee income from service contracts:
Distribution fees		$	255		$	232
Fund management and other asset-based fees		1,427			1,365
Administrative service and other fees		330			304
Total fee income		$	2,012		$	1,901

Distribution fees and Fund management and other asset-based fees are primarily earned in the Asset Management segment. Administrative service and other fees are primarily earned in the Canada and U.S. segments. The fee income by business segment is presented in Note 4.

9. Income Taxes

The Company’s effective income tax rate is generally lower than our statutory income tax rate of 27.8% due to various tax benefits, such as lower taxes on income subject to tax in foreign jurisdictions and a range of tax-exempt investment income.

Our effective income tax rate for the three months ended March 31, 2024 was 21.8% compared to 16.2% for the three months ended March 31, 2023. The effective income tax rate for the three months ended March 31, 2024 was higher than the effective income tax rate for the three months ended March 31, 2023 primarily due to the impact of lower tax-exempt investment income earned in 2024.

In our Consolidated Statements of Operations, Income tax expense (benefit) has the following components:

	For the three months ended
	March 31, 2024			March 31, 2023
Current income tax expense (benefit)		$	307		$	300
Deferred income tax expense (benefit)		(46)			(123)
Total income tax expense (benefit)		$	261		$	177

Recent amendments to IAS 12 Income Taxes provide a mandatory temporary exception to the recognition and disclosure of information about deferred taxes arising from Pillar Two, and we have applied this temporary exception. Our deferred taxes will not reflect impacts of Pillar Two while the mandatory exception is applicable. The global minimum tax rules apply to Sun Life effective January 1, 2024 and have been substantively enacted in several jurisdictions in which Sun Life operates, including the UK, Ireland, Luxembourg and Vietnam, however the rules are not yet substantively enacted in Canada. The Current income tax expense (benefit) for the three months ended March 31, 2024 includes tax expense related to Pillar Two income taxes of $2.

62 Sun Life Financial Inc. First Quarter 2024 CONDENSED NOTES TO THE INTERIM CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

10. Capital Management

10.A Capital

Our capital base is structured to exceed minimum regulatory and internal capital targets and maintain strong credit and financial strength ratings, while maintaining a capital efficient structure. We strive to achieve an optimal capital structure by balancing the use of debt and equity financing. Capital is managed both on a consolidated basis under the principles that consider all the risks associated with the business, as well as at the business group level under the principles appropriate to the jurisdiction in which each operates. We manage the capital for all of our international subsidiaries on a local statutory basis in a manner commensurate with their individual risk profiles. Further details on our capital, and how it is managed, are included in Note 20 of our 2023 Annual Consolidated Financial Statements.

SLF Inc. is a non-operating insurance company and is subject to the Life Insurance Capital Adequacy Test ("LICAT") guideline. As at March 31, 2024, SLF Inc.’s LICAT ratio exceeded the regulatory minimum target as set out by the Office of the Superintendent of Financial Institutions, Canada ("OSFI").

Sun Life Assurance, SLF Inc.’s principal operating life insurance subsidiary in Canada, is also subject to the LICAT guideline. As at March 31, 2024, Sun Life Assurance's LICAT ratio exceeded OSFI’s minimum regulatory target; as well as OSFI’s supervisory target applicable to operating life insurance companies.

In the U.S., Sun Life Assurance operates through a branch which is subject to U.S. regulatory supervision and it exceeded the levels under which regulatory action would be required as at March 31, 2024. In addition, other subsidiaries of SLF Inc. that must comply with local capital or solvency requirements in the jurisdiction in which they operate maintained capital levels above minimum local requirements as at March 31, 2024.

Our capital base consists mainly of common shareholders’ equity, preferred shareholders’ equity, equity in the participating account, non-controlling interest's equity, CSM, and certain other capital securities that qualify as regulatory capital.

10.B Significant Capital Transactions

10.B.i Common Shares

Changes in common shares issued and outstanding were as follows:

For the three months ended	March 31, 2024				March 31, 2023
Common shares (in millions of shares)	Number of shares		Amount		Number of shares		Amount
Balance, beginning of period		584.6	$	8,327		586.4	$	8,311
Stock options exercised		0.3	12			0.3	20
Common shares purchased for cancellation		(2.4)	(34)			—	—
Balance, end of period		582.5	$	8,305		586.7	$	8,331

On August 29, 2023, we launched a normal course issuer bid (the "NCIB") to purchase up to 17 million of our common shares between

August 29, 2023 and, at the latest, August 28, 2024. We implemented an automatic repurchase plan with our designated broker in order to

facilitate purchases of common shares under the NCIB. Under the automatic repurchase plan, our designated broker is able to purchase

common shares pursuant to the NCIB at times when we ordinarily would not be active in the market due to applicable securities laws or
self-imposed blackout periods. Any common shares purchased by us pursuant to the NCIB will be cancelled or used in connection with certain

equity settled incentive arrangements.

For the three months ended March 31, 2024, we purchased and cancelled approximately 2.4 million common shares at an average price per share of $73.34 for a total amount of $174 under the NCIB. The total amount paid to purchase the shares pursuant to the NCIB is allocated to Common shares and Retained earnings in our Consolidated Statements of Changes in Equity. The amount allocated to Common shares is based on the average cost per common share and amounts paid above the average cost are allocated to Retained earnings.

CONDENSED NOTES TO THE INTERIM CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) Sun Life Financial Inc. First Quarter 2024 63

11. Segregated Funds

11.A Segregated Funds Classified as Investment Contracts

11.A.i Investments for Account of Segregated Fund Holders — Investment Contracts

The carrying value of investments for account of segregated fund holders for contracts classified as investment contracts are as follows:

As at	March 31, 2024			December 31, 2023
Segregated and mutual fund units		$	113,763		$	107,239
Equity securities		1,217			1,280
Debt securities		797			862
Cash, cash equivalents and short-term securities		23			4
Other assets		88			30
Total assets		115,888			109,415
Less: Liabilities arising from investing activities		1			4
Total investments for account of segregated fund holders		$	115,887		$	109,411

11.A.ii Changes in Account of Segregated Fund Holders — Investment Contracts

	For the three months ended and as at March 31, 2024			For the year ended and as at December 31, 2023
Balance, beginning of period		$	109,411		$	102,153
Additions to segregated funds:
Deposits		3,540			11,510
Net realized and unrealized gains (losses)		6,321			3,995
Other investment income		81			7,854
Total additions		9,942			23,359
Deductions from segregated funds:
Payments to policyholders and their beneficiaries		3,273			10,793
Management fees		182			687
Taxes and other expenses		13			49
Foreign exchange rate movements		(2)			(76)
Total deductions		3,466			11,453
Net additions (deductions)		6,476			11,906
Dispositions		—			(4,648)
Balance, end of period		$	115,887		$	109,411

11.B Segregated Funds Classified as Insurance Contracts

11.B.i Investments for Account of Segregated Fund Holders — Insurance Contracts

The carrying value of investments for account of segregated fund holders for contracts classified as insurance contracts, which are the underlying items for the insurance contracts, are as follows:

As at	March 31, 2024			December 31, 2023
Segregated and mutual fund units		$	14,520		$	14,240
Equity securities		3,147			2,908
Debt securities		1,468			1,427
Cash, cash equivalents and short-term securities		482			483
Mortgages		16			16
Other assets		76			45
Total assets		19,709			19,119
Less: Liabilities arising from investing activities		55			78
Total investments for account of segregated fund holders		$	19,654		$	19,041

64 Sun Life Financial Inc. First Quarter 2024 CONDENSED NOTES TO THE INTERIM CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

11.B.ii Changes in Account of Segregated Fund Holders — Insurance Contracts

Changes by Measurement Component

The following reconciliation illustrates the insurance contract liabilities for account of segregated fund holders by measurement component. For insurance contract liabilities for account of segregated fund holders, the entire amount is included in the present value of estimates of future cash flows. Reconciliations for the net liabilities of segregated fund insurance contracts that are not backed by investments for account of segregated fund holders are included as part of the insurance contract liabilities in Note 7.A.i.

	For the three months ended and as at March 31, 2024			For the year ended and as at December 31, 2023
Balance, beginning of period		$	19,041		$	23,139
Insurance finance (income) expenses		1,056			1,793
Foreign currency translation		63			(201)
Cash flows:
Premiums received		480			1,969
Amounts paid to policyholders and other insurance service expenses paid		(771)			(2,583)
Management fees, taxes and other expenses		(215)			(822)
Total cash flows		(506)			(1,436)
Dispositions		—			(4,254)
Balance, end of period		$	19,654		$	19,041

12. Commitments, Guarantees and Contingencies

Guarantees of Sun Life Assurance Preferred Shares and Subordinated Debentures

SLF Inc. has provided a guarantee on the $150 of 6.30% subordinated debentures due 2028 issued by Sun Life Assurance. Claims under this guarantee will rank equally with all other subordinated indebtedness of SLF Inc. SLF Inc. has also provided a subordinated guarantee of preferred shares issued from time to time by Sun Life Assurance, other than such preferred shares which are held by SLF Inc. and its affiliates. Sun Life Assurance has no outstanding preferred shares subject to the guarantee. As a result of these guarantees, Sun Life Assurance is entitled to rely on exemptive relief from most continuous disclosure and the certification requirements of Canadian securities laws.

The following tables set forth certain consolidating summary financial information for SLF Inc. and Sun Life Assurance (consolidated):

For the three months ended	SLF Inc.(unconsolidated)			Sun Life Assurance (consolidated)			Other subsidiaries of SLF Inc. (combined)			Consolidation adjustments			SLF Inc. (consolidated)
March 31, 2024
Insurance revenue		$	—		$	4,690		$	1,223		$	(373)		$	5,540
Net investment income (loss) excluding result for segregated fund holders		79			(685)			47			(118)			(677)
Fee income		—			450			1,690			(128)			2,012
Other income		—			—			161			—			161
Total revenue		$	79		$	4,455		$	3,121		$	(619)		$	7,036
Shareholders’ net income (loss)		$	838		$	510		$	324		$	(834)		$	838
March 31, 2023
Insurance revenue		$	—		$	4,388		$	1,190		$	(296)		$	5,282
Net investment income (loss) excluding result for segregated fund holders		119			4,545			256			(120)			4,800
Fee income		—			424			1,594			(117)			1,901
Other income		—			102			—			—			102
Total revenue		$	119		$	9,459		$	3,040		$	(533)		$	12,085
Shareholders’ net income (loss)		$	826		$	597		$	184		$	(781)		$	826

CONDENSED NOTES TO THE INTERIM CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) Sun Life Financial Inc. First Quarter 2024 65

Assets and liabilities as at	SLF Inc.(unconsolidated)			Sun Life Assurance (consolidated)			Other subsidiaries of SLF Inc. (combined)			Consolidation adjustments			SLF Inc. (consolidated)
March 31, 2024
Invested assets		$	26,861		$	161,658		$	10,962		$	(26,066)		$	173,415
Reinsurance contract held assets		$	—		$	5,745		$	3		$	(3)		$	5,745
Insurance contract assets		$	—		$	180		$	772		$	(772)		$	180
Total other general fund assets		$	4,587		$	14,349		$	9,915		$	(3,205)		$	25,646
Investments for account of segregated fund holders		$	—		$	135,484		$	57		$	—		$	135,541
Insurance contract liabilities excluding those for account of segregated fund holders		$	—		$	134,778		$	134		$	(3)		$	134,909
Reinsurance contract held liabilities		$	—		$	2,308		$	—		$	(772)		$	1,536
Investment contract liabilities		$	—		$	11,757		$	—		$	—		$	11,757
Total other general fund liabilities		$	7,419		$	15,653		$	14,506		$	(5,439)		$	32,139
Insurance contract liabilities for account of segregated fund holders		$	—		$	19,597		$	57		$	—		$	19,654
Investment contract liabilities for account of segregated fund holders		$	—		$	115,887		$	—		$	—		$	115,887

December 31, 2023
Invested assets	$	26,239	$	164,557	$	13,913	$	(30,381)	$	174,328
Reinsurance contract held assets	$	—	$	5,858	$	3	$	(67)	$	5,794
Insurance contract assets	$	—	$	184	$	637	$	(637)	$	184
Total other general fund assets	$	4,547	$	13,302	$	9,805	$	(3,171)	$	24,483
Investments for account of segregated fund holders	$	—	$	128,396	$	56	$	—	$	128,452
Insurance contract liabilities excluding those for account of segregated fund holders	$	—	$	135,445	$	291	$	(67)	$	135,669
Reinsurance contract held liabilities	$	—	$	2,260	$	—	$	(637)	$	1,623
Investment contract liabilities	$	—	$	11,672	$	—	$	—	$	11,672
Total other general fund liabilities	$	7,300	$	15,041	$	14,880	$	(5,596)	$	31,625
Insurance contract liabilities for account of segregated fund holders	$	—	$	18,985	$	56	$	—	$	19,041
Investment contract liabilities for account of segregated fund holders	$	—	$	109,411	$	—	$	—	$	109,411

13. Earnings (Loss) Per Share

Details of the calculation of the net income (loss) and the weighted average number of shares used in the earnings per share computations are as follows:

	For the three months ended
	March 31, 2024			March 31, 2023
Common shareholders’ net income (loss) for basic earnings per share		$	818		$	806
Add: Increase in income due to convertible instruments(1)		3			3
Common shareholders’ net income (loss) on a diluted basis		$	821		$	809
Weighted average number of common shares outstanding for basic earnings per share (in millions)		584			587
Add: Dilutive impact of stock options(2) (in millions)		—			—
Dilutive impact of convertible instruments(1) (in millions)		3			3
Weighted average number of common shares outstanding on a diluted basis (in millions)		587			590
Basic earnings (loss) per share		$	1.40		$	1.37
Diluted earnings (loss) per share		$	1.40		$	1.37

(1)    The convertible instruments are the Sun Life ExchangEable Capital Securities (“SLEECS“) — Series B issued by Sun Life Capital Trust.

(2)    Excludes the impact of 1 million stock options for the three months ended March 31, 2024 (March 31, 2023 — 2 million, respectively) because these stock options were anti-dilutive for the period.

66 Sun Life Financial Inc. First Quarter 2024 CONDENSED NOTES TO THE INTERIM CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

14. Accumulated Other Comprehensive Income (Loss)

Changes in accumulated other comprehensive income (loss), net of taxes, are as follows:

For the three months ended,	March 31, 2024									March 31, 2023
		Balance, beginning of period		Other comprehensive income (loss)			Balance,  end of period			Balance, beginning of period			Transition adjustment			Balance, beginning of period (adjusted)			Other comprehensive income (loss)			Balance, end of period
Items that may be reclassified subsequently to income:
Unrealized foreign currency translation gains (losses), net of hedging activities		$	1,350		$	292		$	1,642		$	1,630		$	59		$	1,689		$	(2)		$	1,687
Unrealized gains (losses) on FVOCI assets		(354)			(48)			(402)			(1,333)			494			(839)			228			(611)
Unrealized gains (losses) on cash flow hedges		(1)			2			1			(18)			—			(18)			(6)			(24)
Share of other comprehensive income (loss) in joint ventures and associates		(151)			115			(36)			(107)			—			(107)			1			(106)
Items that will not be reclassified subsequently to income:
Remeasurement of defined benefit plans		(217)			7			(210)			(149)			—			(149)			(37)			(186)
Share of other comprehensive income (loss) in joint ventures and associates		2			(9)			(7)			(5)			—			(5)			8			3
Revaluation surplus on transfers to investment properties		143			—			143			143			—			143			1			144
Total		$	772		$	359		$	1,131		$	161		$	553		$	714		$	193		$	907
Total attributable to:
Participating account		$	6		$	(2)		$	4		$	(3)		$	—		$	(3)		$	—		$	(3)
Non-controlling interests		1			5			6			4			—			4			(4)			—
Shareholders		765			356			1,121			160			553			713			197			910
Total		$	772		$	359		$	1,131		$	161		$	553		$	714		$	193		$	907

15. Legal and Regulatory Proceedings

We are regularly involved in legal actions, both as a defendant and as a plaintiff. Legal actions naming us as a defendant ordinarily involve our activities as a provider of insurance protection and wealth management products, as an investor and investment advisor, and as an employer. In addition, government and regulatory bodies in Canada, the U.S., the UK, and Asia, including federal, provincial, and state securities and insurance regulators, tax authorities, and other government authorities, from time to time, make inquiries and require the production of information or conduct examinations or investigations concerning our compliance with tax, insurance, securities, and other laws.

Provisions for legal proceedings related to insurance contracts, such as for disability and life insurance claims and the cost of litigation, are included in Insurance contract liabilities in our Consolidated Statements of Financial Position. Other provisions are established outside of the Insurance contract liabilities if, in the opinion of management, it is both probable that a payment will be required and a reliable estimate can be made of the amount of the obligation. Management reviews the status of all proceedings on an ongoing basis and exercises judgment in resolving them in such manner as management believes to be in our best interest.

Our significant legal proceedings and regulatory matters are disclosed in Note 22.G of our 2023 Annual Consolidated Financial Statements. There have been no significant updates to such legal and regulatory proceedings.

CONDENSED NOTES TO THE INTERIM CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) Sun Life Financial Inc. First Quarter 2024 67

Corporate and Shareholder Information

For information about Sun Life, corporate	United States		Direct deposit of dividends
news and financial results, please visit	Equiniti Trust Company, LLC		Common shareholders residing in Canada,
sunlife.com	PO Box 860		or the U.S. may have their dividend
	Newark, NJ 07101		payments deposited directly into their
Corporate office	Tel: 1-877-224-1760		bank account.
Sun Life Financial Inc.	Email: sunlifeinquiries@tmx.com
1 York Street			The Request for Electronic Payment of
Toronto, Ontario	United Kingdom		Dividends Form is available for
Canada M5J 0B6	Link Group		downloading from the TSX Trust
Tel: 416-979-9966	Central Square		Company website, https://tsxtrust.com/
Website: www.sunlife.com	29 Wellington Street		sun-life/forms, or you can contact TSX Trust
	Leeds LS1 4DL		Company have a form sent to you.
Investor Relations	Tel: +44 (0) 345-602-1587
For financial analysts, portfolio managers	Email: shareholderenquiries@linkgroup.co.uk		Canadian dividend reinvestment
and institutional investors requiring			and share purchase plan
information, please contact:	Philippines		Canadian-resident common shareholders
Investor Relations	RCBC TRUST CORPORATION		can enroll in the Dividend Reinvestment
Tel: 416-979-6496	Stock Transfer Processing Section		and Share Purchase Plan. For details visit
Email: investor_relations@sunlife.com	Ground Floor, West Wing,		our website at sunlife.com or contact the
Please note that financial information can	GPL (Grepalife) Building,		Plan Agent, TSX Trust Company
also be obtained from www.sunlife.com.	221 Senator Gil Puyat Avenue		at sunlifeinquiries@tmx.com.
	Makati City, 1200,
Transfer agent	Philippines		Stock exchange listings
For information about your shareholdings,	From Metro Manila: 632-5318-8567		Sun Life Financial Inc. common shares are
dividends, change in share registration or	From the Provinces: 1-800-1-888-2422		listed on the Toronto (TSX), New York
address, estate transfers, lost certificates,	Email: rcbcstocktransfer@rcbc.com		(NYSE) and Philippine (PSE) stock
or to advise of duplicate mailings, please			exchanges. Ticker Symbol: SLF
contact the Transfer Agent in the country
where you reside. If you do not live in any	Hong Kong, SAR		Sun Life Financial Inc. Class A Preferred
of the countries listed, please contact the	Computershare Hong Kong Investor		Shares are listed on the Toronto Stock
Canadian Transfer Agent.	Services Limited		Exchange (TSX).
	17M Floor, Hopewell Centre
Canada	183 Queen’s Road East		Ticker Symbols:	Series 3 - SLF.PR.C
TSX Trust Company	Wanchai, Hong Kong			Series 4 - SLF.PR.D
301 - 100 Adelaide Street West	Tel: 852-2862-8555			Series 5 - SLF.PR.E
Toronto, ON	Shareholders can submit inquiries online at:			Series 8R - SLF.PR.G
M5H 4H1	'https://www.computershare.com/hk/en/			Series 9QR - SLF.PR.J
Within North America:	online_feedback			Series 10R - SLF.PR.H
Tel: 1-877-224-1760				Series 11QR - SLF.PR.K
Outside of North America:	Shareholder services
Tel: 416-682-3865	For shareholder account inquiries, please contact
Fax: 1-888-249-6189	the Transfer Agent in the country where you
Email: sunlifeinquiries@tmx.com	reside, or Shareholder Services: English Email:
Website: https://tsxtrust.com/sun-life	shareholderservices@sunlife.com
Shareholders can view their account	French Email:
details using TSX Trust Company's	servicesauxactionnaires@sunlife.com
Internet service, Investor Central.
Register at https://tsxtrust.com/sun-life.	2024 dividend dates
	Common Shares
	Record dates	Payment dates
	February 28, 2024	March 28,2024
	May 29, 2024	June 28, 2024
	August 28, 2024*	September 27, 2024*
	November 27, 2024*	December 31, 2024*
	*Subject to approval by the Board of Directors

68 Sun Life Financial Inc. First Quarter 2024        CORPORATE AND SHAREHOLDER INFORMATION

EX-99.2

FORM 52-109F2

CERTIFICATION OF INTERIM FILINGS

FULL CERTIFICATE

I, Kevin D. Strain, President and Chief Executive Officer of Sun Life Financial Inc., certify the following:

1.    Review: I have reviewed the interim financial report and interim MD&A (together, the “interim filings”) of Sun Life Financial Inc. (the “issuer”) for the interim period ended March 31, 2024.

2.    No misrepresentations: Based on my knowledge, having exercised reasonable diligence, the interim filings do not contain any untrue statement of a material fact or omit to state a material fact required to be stated or that is necessary to make a statement not misleading in light of the circumstances under which it was made, with respect to the period covered by the interim filings.

3.    Fair presentation: Based on my knowledge, having exercised reasonable diligence, the interim financial report together with the other financial information included in the interim filings fairly present in all material respects the financial condition, financial performance and cash flows of the issuer, as of the date of and for the periods presented in the interim filings.

4.Responsibility: The issuer’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (DC&P) and internal control over financial reporting (ICFR), as those terms are defined in the National Instrument 52-109 Certification of Disclosure in Issuers’ Annual and Interim Filings, for the issuer.

5.Design: Subject to the limitations, if any, described in paragraphs 5.2 and 5.3, the issuer’s other certifying officer(s) and I have, as at the end of the period covered by the interim filings

(a)    designed DC&P, or caused it to be designed under our supervision, to provide reasonable assurance that

(i)    material information relating to the issuer is made known to us by others, particularly during the period in which the interim filings are being prepared; and

(ii)    information required to be disclosed by the issuer in its annual filings, interim filings or other reports filed or submitted by it under securities legislation is recorded, processed, summarized and reported within the time periods specified in securities legislation; and

(b)    designed ICFR, or caused it to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with the issuer’s GAAP.

5.1.    Control framework: The control framework the issuer’s other certifying officer(s) and I used to design the issuer’s ICFR is Internal Control - Integrated Framework (2013), issued by the Committee of Sponsoring Organizations of the Treadway Commission.

5.2.    ICFR - material weakness relating to design: N/A

5.3.    Limitation on scope of design:N/A

6.    Reporting changes in ICFR: The issuer has disclosed in its interim MD&A any change in the issuer’s ICFR that occurred during the period beginning on January 1, 2024 and ended on March 31, 2024 that has materially affected, or is reasonably likely to materially affect, the issuer’s ICFR.

Date: May 9, 2024

/s/ “Kevin D. Strain”

Kevin D. Strain

President and Chief Executive Officer

FORM 52-109F2

CERTIFICATION OF INTERIM FILINGS

FULL CERTIFICATE

I, Timothy Deacon, Executive Vice-President and Chief Financial Officer of Sun Life Financial Inc., certify the following:

1.    Review: I have reviewed the interim financial report and interim MD&A (together, the “interim filings”) of Sun Life Financial Inc. (the “issuer”) for the interim period ended March 31, 2024.

2.    No misrepresentations: Based on my knowledge, having exercised reasonable diligence, the interim filings do not contain any untrue statement of a material fact or omit to state a material fact required to be stated or that is necessary to make a statement not misleading in light of the circumstances under which it was made, with respect to the period covered by the interim filings.

3.    Fair presentation: Based on my knowledge, having exercised reasonable diligence, the interim financial report together with the other financial information included in the interim filings fairly present in all material respects the financial condition, financial performance and cash flows of the issuer, as of the date of and for the periods presented in the interim filings.

4.    Responsibility: The issuer’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (DC&P) and internal control over financial reporting (ICFR), as those terms are defined in the National Instrument 52-109 Certification of Disclosure in Issuers’ Annual and Interim Filings, for the issuer.

5.    Design: Subject to the limitations, if any, described in paragraphs 5.2 and 5.3, the issuer’s other certifying officer(s) and I have, as at the end of the period covered by the interim filings

(a)    designed DC&P, or caused it to be designed under our supervision, to provide reasonable assurance that

(i)    material information relating to the issuer is made known to us by others, particularly during the period in which the interim filings are being prepared; and

(ii)    information required to be disclosed by the issuer in its annual filings, interim filings or other reports filed or submitted by it under securities legislation is recorded, processed, summarized and reported within the time periods specified in securities legislation; and

(b)    designed ICFR, or caused it to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with the issuer’s GAAP.

5.1.    Control framework: The control framework the issuer’s other certifying officer(s) and I used to design the issuer’s ICFR is Internal Control – Integrated Framework (2013), issued by the Committee of Sponsoring Organizations of the Treadway Commission.

5.2.    ICFR - material weakness relating to design: N/A

5.3.    Limitation on scope of design:N/A

6.    Reporting changes in ICFR: The issuer has disclosed in its interim MD&A any change in the issuer’s ICFR that occurred during the period beginning on January 1, 2024 and ended on March 31, 2024 that has materially affected, or is reasonably likely to materially affect, the issuer’s ICFR.

Date: May 9, 2024

/s/ “Timothy Deacon”

Timothy Deacon

Executive Vice-President and Chief Financial Officer

EX-99.3

Sun Life Financial Inc.

Earnings Coverage Ratio

For the 12 months ended March 31, 2024

This updated calculation of the earnings coverage ratio of Sun Life Financial Inc. (the “Company”) is filed pursuant to Section 8.4 of National Instrument No. 44-102 as an exhibit to the Company’s annual consolidated financial statements for the period ended March 31, 2024, in connection with the medium-term note program established by the Company under its prospectus supplement dated March 24, 2023 to a short form base shelf prospectus dated March 24, 2023.

For the 12 months ended March 31, 2024, the borrowing cost of the Company’s outstanding subordinated debt, senior debentures, senior financing and certain other borrowings, after adjustment for new debt issuances, repayment and redemptions, was $424,000,000 and the Company’s shareholders’ net income before borrowing cost and income tax for such period was $4,198,000,000, which is 9.9 times the Company’s pro-forma borrowing cost for the same period.