U.S. Securities and Exchange Commission

Washington, D.C. 20549

Form 40-F

[    ] REGISTRATION STATEMENT PURSUANT TO SECTION 12 OF THE

SECURITIES EXCHANGE ACT OF 1934

OR

[X] ANNUAL REPORT PURSUANT TO SECTION 13(a) OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934



|                                            |  |                                 
|------------------------------------------- |  | --------------------------------
|For the fiscal year ended December 31, 2014 |  | Commission File Number 001-15014

Sun Life Financial Inc.

(Exact name of Registrant as specified in its charter)

Canada

(Province or other jurisdiction of incorporation or organization)

52411

(Primary Standard Industrial Classification Code Number (if
applicable))

Not Applicable

(I.R.S. Employer Identification Number (if applicable))

150 King Street West, 6th Floor, Toronto, Ontario, Canada M5H 1J9 (416) 979-4800

(Address and telephone number of Registrants principal executive offices)

Sun Life Assurance Company of Canada  U.S. Operations Holdings, Inc.

One Sun Life Executive Park

Wellesley Hills, Massachusetts 02481

(781) 237-6030

(Name, address (including zip code) and telephone number (including area code)

of agent for service in the United States)

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



|                    |  |                                          
|------------------- |  | -----------------------------------------
|Title of each class |  | Name of each exchange on which registered
|Common Shares       |  | New York Stock Exchange                  

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

Not Applicable

(Title of Class)

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

Not Applicable

(Title of Class)



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For annual reports, indicate by check mark the information filed with this Form:

[ X ] Annual information form
                                 [X] Audited annual financial statements

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



|                                    |  |  |  |  |             |  |  | 
|----------------------------------- |  |  |  |  | ----------- |  |  | 
|Common Shares                       |  |  |  |  | 609,376,407 |  |  | 
|Class A Preferred Shares Series 1   |  |  |  |  | 16,000,000  |  |  | 
|Class A Preferred Shares Series 2   |  |  |  |  | 13,000,000  |  |  | 
|Class A Preferred Shares Series 3   |  |  |  |  | 10,000,000  |  |  | 
|Class A Preferred Shares Series 4   |  |  |  |  | 12,000,000  |  |  | 
|Class A Preferred Shares Series 5   |  |  |  |  | 10,000,000  |  |  | 
|Class A Preferred Shares Series 8R  |  |  |  |  | 11,200,000  |  |  | 
|Class A Preferred Shares Series 10R |  |  |  |  | 8,000,000   |  |  | 
|Class A Preferred Shares Series 12R |  |  |  |  | 12,000,000  |  |  | 

Indicate by check mark whether the Registrant by filing the information contained in this Form is also thereby furnishing
the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934 (the Exchange Act). If Yes is marked, indicate the filing number assigned to the
Registrant in connection with such Rule.

Yes
 ̈                            No þ

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

Yes
þ                            No  ̈

INCORPORATION BY REFERENCE

The following information is incorporated by reference in this annual report on Form 40-F:

Disclosure Controls and Procedures

The information under the heading Accounting and
Control Matters - Disclosure Controls and Procedures in the Companys Managements Discussion and Analysis for the year ended December 31, 2014 (the 2014 Annual MD&A) is incorporated by reference herein.

A copy of the Companys 2014 Annual MD&A is attached hereto as Exhibit 1.

Managements Annual Report on Internal Control Over Financial Reporting

The information under the heading Accounting and Control Matters - Disclosure Controls and Procedures in the Companys 2014 Annual MD&A and the information in the management report
titled Financial Reporting Responsibilities, with respect to the Companys annual consolidated financial statements for the year ended December 31, 2014 (the 2014 Annual Financial Statements) is
incorporated by reference herein.

Copies of the management report titled Financial Reporting Responsibilities and the
Companys 2014 Annual Financial Statements are attached hereto as Exhibit 2.



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Attestation Report of the Registered Public Accounting Firm

The Report of Independent Registered Public Accounting Firm with respect to the Companys 2014 Annual Financial Statements, which
accompanies the Companys 2014 Annual Financial Statements is incorporated by reference herein.

Changes in Internal Control Over
Financial Reporting

The information under the heading Accounting and Control Matters - Disclosure Controls and Procedures in
the Companys 2014 Annual MD&A is incorporated by reference herein.

Identification of Audit Committee

The information under the heading Directors and Executive Officers - Audit & Conduct Review Committee in the Companys annual
information form dated February 11, 2015 (the 2014 AIF) is incorporated by reference herein.

A copy of the
Companys 2014 AIF is attached hereto as Exhibit 3.

Audit Committee Financial Expert

The information under the heading Directors and Executive Officers - Audit & Conduct Review Committee in the Companys
2014 AIF is incorporated by reference herein.

Code of Ethics

The information under the heading Directors and Executive Officers - Code of Business Conduct in the Companys 2014 AIF is incorporated by reference herein.

A copy of the Sun Life Financial Code of Business Conduct is attached hereto as Exhibit 4.

No changes have been made to Sun Life Financial Code of business Conduct since January 1, 2014.

Principal Accountant Fees and Services

The information under the headings Directors and Executive Officers - Principal Accountant Fees and Services in the Companys 2014 AIF
is incorporated by reference herein.

None of the services provided by the Companys external auditor described under
Directors and Executive Officers - Principal Accountant Fees and Services in the Companys 2014 AIF were approved pursuant to the waiver of pre-approval provisions in paragraph (c)(7)(i)(C) of SEC Rule 2-01 of Regulation S-X.

Off-Balance Sheet Arrangements

The information under the heading Capital and Liquidity Management - Off-Balance Sheet Arrangements in the Companys 2014 Annual MD&A is incorporated by reference herein.

Tabular Disclosure of Contractual Obligations

The table entitled Financial Liabilities and Contractual Commitments included under the heading Risk Management - Risk Categories - Liquidity risk in the Companys 2014 Annual
MD&A is incorporated by reference herein.

Comparison with New York Stock Exchange Governance Rules

The Companys governance processes and practices are consistent with the New York Stock Exchange corporate governance rules for U.S.
publicly-listed companies.

UNDERTAKING

Registrant undertakes to make available, in person or by telephone, representatives to respond to inquiries made by the Commission staff, and to furnish promptly, when requested to do so by the Commission
staff, information relating to: the securities registered pursuant to Form 40-F; the securities in relation to which the obligation to file an annual report on Form 40-F arises; or transactions in said securities.



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SIGNATURES

Pursuant to the requirements of the Exchange Act, the Registrant certifies that it meets all of the requirements for filing on Form 40-F and has duly caused this annual report to be signed on its behalf
by the undersigned, thereto duly authorized.



Sun Life Financial Inc.By:

/S/ Melissa J. KennedyMelissa J. Kennedy
Executive Vice-President & General CounselDated: February 12, 2015


EXHIBITS:



|1. | Annual Managements Discussion and Analysis for the year ended December 31, 2014
|-- | --------------------------------------------------------------------------------



|2. | Consolidated Financial Statement for the year ended December 31, 2014
|-- | ---------------------------------------------------------------------



|3. | Annual Information Form dated February 11 , 2015
|-- | ------------------------------------------------



|4. | Sun Life Financial Code of Business Conduct
|-- | -------------------------------------------



|5. | Consent of Independent Registered Public Accounting Firm
|-- | --------------------------------------------------------



|6. | Consent of Appointed Actuary
|-- | ----------------------------



|7. | Certifications required by Rule 13a-14(b) or Rule 15d-14(b) and Section 1350 of Chapter 63 of Title 18 of United States Code, pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002
|-- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



|8. | Certifications required by Rule 13a-14(a) or Rule 15d-14(a), pursuant to Section 302 of the Sarbanes-Oxley Actof 2002
|-- | ---------------------------------------------------------------------------------------------------------------------