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Susan J. Lazzo

AVP & Senior Counsel

Law Department

Sun Life Assurance

Company of Canada

SC 2335

One Sun Life Executive Park

Wellesley Hills, MA 02481-5699

Tel: 781-446-1638

800-432-1102 ext. 1638

Fax: 781-237-0707

Susan.Lazzo@sunlife.com

December 11, 2012

Securities and Exchange Commission

Judiciary Plaza

100 F Street, NE

Washington, D.C. 20549

Re: Certification pursuant to Rule 497(j)

Sun Life of Canada (U.S.) Variable Account F ("Registrant")

File Nos. 333-74844 and 811-05846

Commissioners:

Pursuant to paragraph (j) of Rule 497 of Regulation C under the Securities Act of 1933, as amended (“Rule 497”), I hereby certify that the form of supplement for the above-captioned Registrant, dated December 10, 2012, does not differ from that contained in the amendment to the Registration Statement on Form N-4 that relates to the supplement, being Post-Effective Amendment No. 34. Post-Effective Amendment No. 34 was filed electronically with the Securities and Exchange Commission via EDGAR on December 10, 2012.

Sincerely,

/s/ Susan J. Lazzo

Susan J. Lazzo

AVP & Senior Counsel

Sun Life Assurance Company of Canada

is a member of the Sun Life Financial group of companies.