As Filed with the Securities and Exchange Commission on December 18, 2009

REGISTRATION NO. 333-83362

811-05846

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM N-4

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

Post-Effective Amendment No. 26

and

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940

Amendment No. 98

SUN LIFE OF CANADA (U.S.) VARIABLE ACCOUNT F

(Exact Name of Registrant)

SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)

(Name of Depositor)

One Sun Life Executive Park

Wellesley Hills, Massachusetts 02481

(Address of Depositor's Principal Executive Offices)

Depositor's Telephone Number, including Area Code: (781) 237-6030

Sandra M. DaDalt, Assistant Vice President and Senior Counsel

Sun Life Assurance Company of Canada (U.S.)

One Sun Life Executive Park, SC 1335

Wellesley Hills, Massachusetts 02481

(Name and Address of Agent for Service)

Copies of Communications to:

Thomas C. Lauerman, Esq.

Jorden Burt LLP

1025 Thomas Jefferson Street, N.W.

Suite 400 East

Washington, D.C. 20007-0805

It is proposed that this filing will become effective (check appropriate box)

£ immediately upon filing pursuant to paragraph (b) of Rule 485

R on December 31, 2009 pursuant to paragraph (b) of Rule 485

£ 60 days after filing pursuant to paragraph (a)(1) of Rule 485

£ on (date) pursuant to paragraph (a)(1) of Rule 485.

If appropriate, check the following box:

£ this post-effective amendment designates a new effective date for a previously filed post-effective amendment.

No filing fee is due because an indefinite amount of securities is deemed to have been registered in reliance on Section 24(f) of the Investment Company Act of 1940.

This Amendment No. 26 to the Registration Statement on Form N-4 (the "Registration Statement") (File Nos. 333-83362, 811-05846) is being filed pursuant to Rule 485(b) under the Securities Act of 1933, as amended, in order to add a supplement to the prospectus filed with Post-Effective Amendment No. 25 to the Registration Statement, which was filed on August 12, 2009. This Amendment does not otherwise delete, amend, or supersede any prospectus, statement of additional information, exhibit, or other information contained in Post-Effective Amendment No. 25 to the Registration Statement.

PART A

SUPPLEMENT DATED DECEMBER 31, 2009

TO PROSPECTUSES DATED AUGUST 17, 2009

FOR SUN LIFE FINANCIAL MASTERS ACCESS, SUN LIFE FINANCIAL MASTERS EXTRA,

SUN LIFE FINANCIAL MASTERS CHOICE, AND SUN LIFE FINANCIAL MASTERS FLEX

ISSUED BY SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)

SUN LIFE OF CANADA (U.S.) VARIABLE ACCOUNT F

This supplement describes changes to certain Contracts available under the above-captioned Prospectuses.

Effective February 8, 2010, changes will be made to the living benefits and the investment options available under the Contracts. As described in more detail below, certain of those changes will be available only on Contracts purchased on or after the “Date of Availability.” For purposes of this supplement, the “Date of Availability” is the later of February 8, 2010, or the date on which the changes described below are first available for sale through your sales representative and in your state.

All capitalized terms used in this Supplement have the same meaning as defined in the Prospectuses.

OPTIONAL LIVING BENEFIT: INCOME ON DEMAND III ESCALATOR

The Income ON Demand III Escalator (“IOD III Escalator”) living benefit will not be available on Contracts purchased on or after February 8, 2010.

OPTIONAL LIVING BENEFIT: SUN INCOME RISER

For Contracts purchased on or after the Date of Availability, the following changes will apply to the Sun Income Riser (“SIR”) living benefit.

l	The percentage amount used to increase the Withdrawal Benefit Base during the SIR Bonus Period, as described under “How SIR Works,” will be increased from 6% to 7%.
l	The step-up of the Withdrawal Benefit Base and the SIR Bonus Base, as described under “Step-Up under SIR,” will be calculated using the 7% bonus, discussed above, to determine whether the current Withdrawal Benefit Base plus the bonus exceeds the Account Value.

The above changes may not be available in all states on February 8, 2010. In those states, SIR with a 6% bonus will continue to be available until SIR with a 7% bonus is approved.

Contracts purchased after December 31, 2009 with SIR may be eligible, commencing on the Date of Availability, to convert from the 6% to the 7% bonus, as discussed more fully below under “CONVERSION FROM 6% TO 7% SIR BONUS.”

The above changes are illustrated by replacing the four examples included under “OPTIONAL LIVING BENEFIT: SUN INCOME RISER as shown below.

1. The example under “How SIR Works” is replaced with:

Assume that you purchased a Contract with an initial Purchase Payment of $100,000 on the Date of Availability. Assume also that you are age 65 when your Contract is issued and that you elected to participate in SIR with single-life coverage. (If you selected joint-life coverage the numbers shown in the example could be different.) Your Withdrawal Benefit Base and your SIR Bonus Base are each set equal to your initial Purchase Payment on your Issue Date. Because you reached age 59 prior to your Issue Date, your SIR Coverage Date is your Issue Date. You can begin at any time to withdraw up to your Annual Withdrawal Amount each Account Year without reducing your Withdrawal Benefit Base. During the SIR Bonus Period, your Withdrawal Benefit Base will increase by 7% of your SIR Bonus Base each Account Year in which you do not take a withdrawal. By deferring your withdrawals during a SIR Bonus Period you will increase your Withdrawal Benefit Base, which in turn may maximize your Annual Withdrawal Amount. After the SIR Bonus period is over, you will no longer be eligible for the 7% bonus each year and it may be in your interest to take the full Annual Withdrawal Amount each year. However, any withdrawal will reduce your Account Value as well as your chances of a higher Annual Withdrawal Amount through step-up. When to take withdrawals will depend upon your own situation. You should discuss your living benefit options with your financial advisor. (For convenience, assume that the investment performance on your underlying investments remains neutral throughout the life of your Contract, except for Account Year 2.)
Assume that, because of good investment performance of the Designated Funds during Account Year 2, your Account Value has grown to $125,000 by the beginning of Account Year 3. Your Contract is, therefore, eligible for an automatic step-up of its Withdrawal Benefit Base and SIR Bonus Base. Assume that we have not increased the percentage used to calculate the SIR Fee on newly issued Contracts; therefore we will step up your Withdrawal Benefit Base and your SIR Bonus Base to $125,000. Your new Annual Withdrawal Amount will be 5% of your new Withdrawal Benefit Base, or $6,250. Going forward, your new SIR Bonus Base will be $125,000, unless increased by another step-up or reduced by an Excess Withdrawal, and your SIR Bonus Period will now end on your 12th Account Anniversary (i.e., ten years after the step-up). All values shown are as of the beginning of the Account Year.
Account Year	Account Value	Withdrawal Benefit Base	SIR Bonus Base	Annual Withdrawal Amount	Withdrawals
1	$100,000	$100,000	$100,000	$5,000	$0
2	$100,000	$107,000	$100,000	$5,350	$0
3	$125,000	$125,000	$125,000	$6,250	$0
Assume you take your first withdrawal when you are age 71 in Account Year 7. Using the above chart, we set your Lifetime Withdrawal Percentage at 5%. Your Annual Withdrawal Amount will be equal to 5% of your Withdrawal Benefit Base. You can begin withdrawing up to $8,000 each Account Year without reducing your Withdrawal Benefit Base, as shown in the following table:
4	$125,000	$133,750	$125,000	$6,688	$0
5	$125,000	$142,500	$125,000	$7,125	$0
6	$125,000	$151,250	$125,000	$7,563	$0
7	$125,000	$160,000	$125,000	$8,000	$8,000
8	$117,000	$160,000	$125,000	$8,000	$8,000
Assume in Account Year 9, you defer taking a withdrawal. Your Withdrawal Benefit Base will increase by $8,750 which is 7% of your SIR Bonus Base ($125,000). Your new Annual Withdrawal Amount will be set equal to $8,438, which is 5% of your new Withdrawal Benefit Base ($168,750), as shown below:
9	$109,000	$160,000	$125,000	$8,000	$0
10	$109,000	$168,750	$125,000	$8,438	$8,438
Assume that in Account Year 14, you again decide to defer taking a withdrawal. Your Withdrawal Benefit Base will not be increased because you are no longer in the SIR Bonus Period, as your SIR Bonus Period ends 10 years after the previous step-up.
11	$100,562	$168,750	$125,000	$8,438	$8,438
12	$  92,124	$168,750	$125,000	$8,438	$8,438
13	$  83,686	$168,750	$125,000	$8,438	$8,438
14	$  75,248	$168,750	$125,000	$8,438	$0
15	$  75,248	$168,750	$125,000	$8,438	$8,438

2. The example under “Excess Withdrawals” under “Withdrawals Under SIR” is replaced with:

Using the facts of the above example, assume that in Account Year 7, you take two withdrawals: a $4,000 withdrawal followed by a $6,000 withdrawal. Your first withdrawal reduces your Account Value to $121,000 but does not affect your SIR Bonus Base or Withdrawal Benefit Base because it is not in excess of your Annual Withdrawal Amount. Your second withdrawal (when combined with the first) is in excess of your $8,000 Annual Withdrawal Amount. After your second withdrawal, your SIR Bonus Base and your Withdrawal Benefit Base will be reduced as follows:
	Your new SIR Bonus Base	=	$125,000	x	$121,000 – $6,000
					$121,000 – ($8,000 – $4,000)
		=	$125,000	x	$115,000
					$117,000
		=	$125,000	x	0.982906
		=	$122,863
	Your new Withdrawal Benefit Base	=	$160,000	x	$121,000 – $6,000
					$121,000 – ($8,000 – $4,000)
		=	$160,000	x	$115,000
					$117,000
		=	$160,000	x	0.982906
		=	$157,265
Beginning on your Account Anniversary and going forward, your new Annual Withdrawal Amount will be reduced to 5% of your new Withdrawal Benefit Base, or $7,863.

3. The example under “Early Withdrawals” under “Withdrawals Under SIR” is replaced with:

Assume that you purchase a Contract with an initial Purchase Payment of $100,000 on the Date of Availability.  Assume also that you are age 45 when your Contract is issued and that you elected to participate in SIR with single-life coverage. (If you selected joint-life coverage, the numbers shown in the example could be different.) Your Withdrawal Benefit Base and your SIR Bonus Base are each set equal to your initial Purchase Payment on your Issue Date. Your Withdrawal Benefit Base will increase by 7% of your SIR Bonus Base each year in which you do not take a withdrawal. Your SIR Coverage Date will not occur until your 15th Account Anniversary (the first Account Anniversary after you reach age 59). Any withdrawals you take prior to that time will be Early Withdrawals.
Assume that because of good investment performance of the Designated Funds during Account Year 2, your Account Value has grown to $125,000 on your second Account Anniversary. Your Contract is therefore eligible for an automatic step-up of its Withdrawal Benefit Base and SIR Bonus Base. Assume that we have not increased the percentage used to calculate the SIR Fee on newly issued Contracts; therefore, we will step-up your Withdrawal Benefit Base and your SIR Bonus Base to $125,000.
Assume that, in Account Year 7, your Account Value has grown to $130,000 and you withdraw $10,000. Because you are age 51 (and younger than age 59), this is an Early Withdrawal. All values shown are as of the beginning of the Account Year.
Account Year		Account Value	Withdrawal Benefit Base	SIR Bonus Base			Annual Withdrawal Amount			Withdrawals
1		$100,000	$100,000	$100,000			$0			$0
2		$100,000	$107,000	$100,000			$0			$0
3		$125,000	$125,000	$125,000			$0			$0
4		$125,000	$133,750	$125,000			$0			$0
5		$125,000	$142,500	$125,000			$0			$0
6		$125,000	$151,250	$125,000			$0			$0
7		$130,000	$160,000	$125,000			$0			$10,000
At this point, your SIR Bonus Base and your Withdrawal Benefit Base will be recalculated as follows:
	Your new SIR Bonus Base				=	$125,000		x	$130,000 – $10,000
									$130,000
					=	$125,000		x	$120,000
									$130,000
					=	$125,000		x	0.92308
					=	$115,385
	Your new Withdrawal Benefit Base				=	$160,000		x	$130,000 – $10,000
									$130,000
					=	$160,000		x	$120,000
									$130,000
					=	$160,000		x	0.92308
					=	$147,693
Your Annual Withdrawal Amount will still be $0 because you have not reached your SIR Coverage Date.

4. The example under “Step-Up Under SIR” is replaced with:

Assume that you purchased a Contract with an initial Purchase Payment of $100,000 on the Date of Availability.  Assume also that you are age 65 when your Contract is issued and that you elected to participate in SIR with single-life coverage. (If you selected joint-life coverage the numbers shown in the example could be different.) Assume that no withdrawals are taken and, therefore, your Withdrawal Benefit Base will increase annually by 7%  of your SIR Bonus Base during your SIR Bonus Period. Assume further that no additional Purchase Payments are made, and, because of good investment performance of the Designated Funds during Account Year 2, your Account Value has grown to $125,000 by the beginning of Account Year 3. Your Contract is, therefore, eligible for an automatic step-up of its Withdrawal Benefit Base and SIR Bonus Base. Assume that we have not increased the percentage used to calculate the SIR Fee on newly issued Contracts; therefore we will step up your Withdrawal Benefit Base and your SIR Bonus Base to $125,000. Your new Annual Withdrawal Amount will be 5% of your new Withdrawal Benefit Base, or $6,250. All values shown are as of the beginning of the Account Year.
Account Year	Account Value	Withdrawal Benefit Base	SIR Bonus Base	Annual Withdrawal Amount	Withdrawals
1	$100,000	$100,000	$100,000	$5,000	0
2	$100,000	$107,000	$100,000	$5,350	0
3	$125,000	$125,000	$125,000	$6,250	0
4	$125,000	$133,750	$125,000	$6,688	0
5	$125,000	$142,500	$125,000	$7,125	0
6	$125,000	$151,250	$125,000	$7,563	0
7	$125,000	$160,000	$125,000	$8,000	0
Going forward, your new SIR Bonus Base will be $125,000, unless increased by another step-up or reduced by an Excess Withdrawal, and your SIR Bonus Period will now end on your 12th Account Anniversary (i.e., ten years after the step-up).

The prior example assumes that you are age 65 at issue, so that your Lifetime Withdrawal Percentage is 5%. Assume instead you are age 79 at issue and have attained age 80 on your first Account Anniversary. When your Withdrawal Benefit Base steps-up to $125,000, your new Lifetime Withdrawal Percentage is 6% since you had attained age 80 by your first Account Anniversary. Your Annual Withdrawal Amount is now $7,500.

CONVERSION FROM 6% TO 7% SIR BONUS

If you purchased SIR with a 6% bonus after December 31, 2009, and prior to the Date of Availability, you will have the opportunity to convert to SIR with a 7% bonus, provided that:

l	You have taken no withdrawals from your Contract. Therefore, if you wish to take advantage of the opportunity to convert, you should avoid any withdrawals until after the conversion occurs.
l	At the time of conversion, all of your Account Value is allocated only to one or more of the following Designated Funds:
l		PIMCO Global Multi-Asset Portfolio - Advisor Class,
l		SC Ibbotson Balanced Fund - S Class, or
l		SC Ibbotson Moderate Fund - S Class.

After you convert to SIR with a 7% bonus, your Account Value, at all times, must be allocated only to the Build Your Portfolio model or other Designated Funds that we make available to SIR with a 7% bonus. (See “CHANGES TO AVAILABLE INVESTMENT OPTIONS,” below.)

Converting to SIR with a 7% bonus may be appropriate if you are an investor who:

l	would like a more conservative selection of investment options,
l	is not planning to take withdrawals right away, and
l	would benefit from a higher bonus.

Converting to SIR with a 7% bonus would be disadvantageous if you want a larger and more diverse selection of investment options because your choices of Designated Funds are limited under SIR with a 7% bonus.

Please contact your financial advisor for additional information, including information about how to elect a conversion.  We must receive any such written election in good order no later than 60 days after the Date of Availability.

CHANGES TO AVAILABLE INVESTMENT OPTIONS

Effective February 8, 2010, the following changes will be made to the investment options available under the above-captioned Prospectuses.

1. The following new Fund will be added to the list of the available investment options appearing on the cover page of each Prospectus and under “VARIABLE ACCOUNT OPTIONS: THE FUNDS”:

Asset Allocation Funds

MFS® Global Total Return Portfolio – S Class*

*Effective February 8, 2010, the name of the MFS® Global Total Return Portfolio will be changed to MFS® Global Tactical Allocation Portfolio.

2. The list of Designated Funds will be changed as follows:

For Contracts participating in SIR with a 7% bonus, the only Funds, dollar-cost averaging programs, and asset allocation models that are deemed to be Designated Funds are:

Asset Allocation Models	Funds
Build Your Portfolio	MFS® Global Total Return Portfolio - S Class*
	PIMCO Global Multi-Asset Portfolio - Advisor Class
Dollar-Cost Averaging Program Options	SC Ibbotson Balanced Fund - S Class
6-Month DCA Guarantee Option	SC Ibbotson Moderate Fund - S Class
12-Month DCA Guarantee Option

*Effective February 8, 2010, the name of the MFS® Global Total Return Portfolio will be changed to MFS® Global Tactical Allocation Portfolio.

For all other Contracts participating in a living benefit, including SIR with a 6% bonus, the only Funds, dollar-cost averaging programs, and asset allocation models that are deemed to be Designated Funds are:

Asset Allocation Models	Funds (continued)
90/10 Masters Model1, 2	Fidelity® Variable Insurance Products Fund Freedom 2015 Portfolio -
80/20 Masters Model2,3	Service Class 2
Build Your Portfolio	Fidelity® Variable Insurance Products Fund Freedom 2020 Portfolio -
	Service Class 2
Dollar-Cost Averaging Program Options	Fidelity® Variable Insurance Products Fund Balanced Portfolio -
6-Month DCA Guarantee Option	Service Class 2
12-Month DCA Guarantee Option	MFS® Total Return Portfolio - S Class
	PIMCO Global Multi-Asset Portfolio - Advisor Class2
Funds	AllianceBernstein Balanced Wealth Strategy Fund - Class B2
SC Ibbotson Growth Fund - S Class2	Universal Institutional Funds Inc. - Equity and Income
SC Ibbotson Balanced Fund - S Class2	Portfolio - Class II2
SC Ibbotson Moderate Fund - S Class2	BlackRock Global Allocation V.I. Fund - Class 32
Huntington VA Balanced Fund4	MFS® Global Total Return Portfolio - S Class5

1 Not available to Contracts purchased on or after February 17, 2009.

2 Not available for investment if you purchased your Contract through a Bank of America representative between April 25, 2005 and April 20, 2007.

3 Not available for investment to Contracts purchased on or after August 17, 2009.

4   Only available for investment to Contracts purchased through a Huntington Bank representative.

5 Effective February 8, 2010, the name of the MFS® Global Total Return Portfolio will be changed to MFS® Global Tactical Allocation Portfolio.

3.  The following is the Build Your Portfolio model that is available for Contracts participating in SIR with a 7% bonus:

Fixed Income Funds	Core Retirement Strategies Funds	Asset Allocation Funds	Core Equity Funds	Growth Equity Funds	Specialty Funds
30% to 50%	40% to 60%	10% to 30%	0% to 20%	0% to 20%	0% to 10%
Sun Capital Investment Grade Bond Fund®	PIMCO Global Multi-Asset Portfolio	AllianceBernstein Balanced Wealth Strategy Portfolio	Lord Abbett Series Fund All Value Portfolio	Franklin Small Cap Value Securities Fund	Franklin Strategic Income Securities Fund
MFS® Government Securities Portfolio	MFS® Global Total Return Portfolio2	Fidelity® Variable Insurance Products Balanced Portfolio	MFS® Value Portfolio	SCSM Oppenheimer Main Street Small Cap Fund	PIMCO Emerging Markets Bond Portfolio
MFS® Bond Portfolio	SCSM Ibbotson Moderate Fund	Franklin Income Securities Fund	Van Kampen Life Investment Trust Comstock Portfolio	Oppenheimer Capital Appreciation Fund/VA	Sun Capital Global Real Estate Fund
Huntington VA Mortgage Securities Fund1	SCSM Ibbotson Balanced Fund	MFS® Total Return Portfolio	Mutual Shares Securities Fund	Lord Abbett Series Fund Growth Opportunities Portfolio	PIMCO CommodityRealReturnTM Strategy Portfolio
Sun Capital Money Market Fund®		Universal Institutional Funds Inc. - Equity and Income Portfolio	MFS® Utilities Portfolio	MFS® International Value Portfolio	MFS® Emerging Markets Equity Portfolio
SCSM Goldman Sachs Short Duration Fund		Fidelity® Variable Insurance Products Fund Freedom 2015 Portfolio	MFS® Core Equity Portfolio	MFS® Research International Portfolio	SCSM PIMCO High Yield Fund
SCSM PIMCO Total Return Fund		Fidelity® Variable Insurance Products Fund Freedom 2020 Portfolio	SCSM Davis Venture Value Fund	Templeton Growth Securities Fund	Lazard Retirement Emerging Markets Equity Portfolio
SCSM BlackRock Inflation Protected Bond Fund		SCSM Ibbotson Growth Fund	Huntington VA Dividend Capture Fund1	First Eagle Overseas Variable Fund	Huntington VA Rotating Markets Fund1
		BlackRock Global Allocation V.I. Fund	Huntington VA Income Equity Fund1	Oppenheimer Global Securities Fund/VA	Huntington VA Real Strategies Fund1
		Huntington VA Balanced Fund1	SCSM Lord Abbett Growth & Income Fund	Columbia Marsico International Opportunities Fund, Variable Series
			SCSM Goldman Sachs Mid Cap Value Fund	Fidelity® Variable Insurance Products Fund Mid Cap Portfolio
			SCSM Oppenheimer Large Cap Core Fund	MFS® International Growth Portfolio
				SCSM WMC Large Cap Growth Fund
				Columbia Marsico Growth Fund, Variable Series
				Columbia Marsico 21st Century Fund, Variable Series
				Huntington VA Growth Fund1
				Huntington VA Marco 100 Fund1
				Huntington VA Mid Corp America Fund1
				Huntington VA New Economy Fund1
				Huntington VA International Equity Fund1
				Huntington VA Situs Fund1
				SCSM WMC Blue Chip Mid Cap Fund
				Universal Institutional Funds Inc. - Mid Cap Growth Portfolio
				Universal Institutional Funds Inc. - Mid Cap Value Portfolio
				AllianceBernstein International Growth Portfolio
				Fidelity® Variable Insurance Products Fund Contrafund® Portfolio
				SCSM AllianceBernstein International Value Fund
				SCSM Dreman Small Cap Value Fund
				SCSM AIM Small Cap Growth Fund

1 Only available if you purchased your Contract through a Huntington Bank representative.

2 Effective February 8, 2010, the name of the MFS® Global Total Return Portfolio will be changed to MFS® Global Tactical Allocation Portfolio.

Other Build Your Portfolio models are available for Contracts participating in a living benefit other than SIR with a 7% bonus.  Consult your Prospectus (particularly in the Prospectus Appendix entitled “Build Your Portfolio”) for the model that applies to your Contract.

PART C

OTHER INFORMATION

Item 24. FINANCIAL STATEMENTS AND EXHIBITS

(a)	The following Financial Statements are included in the Registration Statement:
	A.	Condensed Financial Information - Accumulation Unit Values (Part A) (Incorporated herein by reference to Post-Effective Amendment No. 25 to the Registration Statement on Form N-4, File No. 333-83362, filed on August 12, 2009)
	B.	Financial Statements of the Depositor (Part B) (Incorporated herein by reference to Post-Effective Amendment No. 25 to the Registration Statement on Form N-4, File No. 333-83362, filed on August 12, 2009)
		Audited:
		1.	Consolidated Statements of Income, Years Ended December 31, 2008, 2007 and 2006;
		2.	Consolidated Balance Sheets, December 31, 2008 and 2007;
		3.	Consolidated Statements of Comprehensive Income, Years Ended December 31, 2008, 2007 and 2006;
		4.	Consolidated Statements of Stockholder's Equity, Years Ended December 31, 2008, 2007 and 2006;
		5.	Consolidated Statements of Cash Flows, Years Ended December 31, 2008, 2007 and 2006;
		6.	Notes to Consolidated Financial Statements; and
		7.	Report of Independent Registered Public Accounting Firm.
	C.	Financial Statements of the Registrant (Part B) (Incorporated herein by reference to Post-Effective Amendment No. 25 to the Registration Statement on Form N-4, File No. 333-83362, filed on August 12, 2009)
		1.	Statement of Assets and Liabilities, December 31, 2008;
		2.	Statement of Operations, Year Ended December 31, 2008;
		3.	Statements of Changes in Net Assets, Years Ended December 31, 2008 and December 31, 2007;
		4.	Notes to Financial Statements; and
		5.	Report of Independent Registered Public Accounting Firm.

(b) The following Exhibits are incorporated in the Registration Statement by reference unless otherwise indicated:

(1)	Resolution of Board of Directors of the Depositor dated December 3, 1985 authorizing the establishment of the Registrant (Incorporated herein by reference to the Registration Statement on Form N-4, File No. 333-37907, filed on October 14, 1997);
(2)	Not Applicable;
(3)(a)	Marketing Services Agreement between Sun Life Assurance Company of Canada (U.S.), Sun Life of Canada (U.S.) Distributors, Inc. and Clarendon Insurance Agency, Inc. (Incorporated herein by reference to Pre-Effective Amendment No. 1 to the Registration Statement on Form N-4, File No. 333-37907, filed on January 16, 1998);
(3)(b)(i)	Principal Underwriter’s Agreement by and between Sun Life Assurance Company of Canada (U.S.) and Clarendon Insurance Agency, Inc. (Incorporated herein by reference to Post-Effective Amendment No. 16 to the Registration Statement on Form N-4, File No. 333-83364, filed on or about April 27, 2009);
(3)(b)(ii)	Amendment to Principal Underwriter’s Agreement by and between Sun Life Assurance Company of Canada (U.S.) and Clarendon Insurance Agency, Inc. (Incorporated herein by reference to Post-Effective Amendment No. 16 to the Registration Statement on Form N-4, File No. 333-83364, filed on or about April 27, 2009);
(3)(c)(i)	Specimen Sales Operations and General Agent Agreement (Incorporated herein by reference to Pre-Effective Amendment No. 1 to the Registration Statement on Form N-4, File No. 333-37907, filed on January 16, 1998);
(3)(c)(ii)	Specimen Broker-Dealer Supervisory and Service Agreement (Incorporated herein by reference to Pre-Effective Amendment No. 1 to the Registration Statement on Form N-4, File No. 333-37907, filed on January 16, 1998);
(3)(c)(iii)	Specimen Registered Representatives Agent Agreement (Incorporated herein by reference to Pre-Effective Amendment No. 1 to the Registration Statement on Form N-4, File No. 333-37907, filed on January 16, 1998);
(4)(a)	Specimen Flexible Payment Combination Fixed/Variable Group Annuity Contract (Incorporated herein by reference to the Registration Statement on Form N-4, File No. 333-83362, filed on February 25, 2002);
(4)(b)	Specimen Certificate to be issued in connection with Contract filed as Exhibit 4(a) (Incorporated herein by reference to the Registration Statement on Form N-4, File No. 333-83362, filed on February 25, 2002);
(4)(c)	Specimen Flexible Payment Combination Fixed/Variable Individual Annuity Contract(Incorporated herein by reference to the Registration Statement on Form N-4, File No. 333-83362, filed on February 25, 2002);
(4)(d)	Specimen Secured Returns 2 Rider to Certificate filed as Exhibit (4)(b) (Incorporated herein by reference to the Registration Statement on Form N-4, File No. 333-115525, filed on May 14, 2004);
(4)(e)	Specimen Secured Returns 2 Rider to Flexible Payment Combination Fixed/Variable Individual Annuity Contract filed as Exhibit (4)(c) (Incorporated herein by reference to the Registration Statement on Form N-4, File No. 333-115525, filed on May 14, 2004);
(4)(f)	Specimen Secured Returns for Life Rider to Flexible Payment Combination Fixed/Variable Individual Annuity Contract filed as Exhibit (4)(c) (Incorporated herein by reference to Post-Effective Amendment No. 9 to the Registration Statement on Form N-4, File No. 333-83516, filed on August 2, 2005);
(4)(g)	Specimen Secured Returns for Life Plus Rider to Flexible Payment Combination Fixed/Variable Individual Annuity Contract filed as Exhibit (4)(c) (Incorporated herein by reference to Post-Effective Amendment No. 13 to the Registration Statement on Form N-4, File No. 333-83516, filed on February 3, 2006);
(4)(h)	Specimen Income ON Demand Benefit Rider to Flexible Payment Combination Fixed/Variable Individual Annuity Contract filed as Exhibit (4)(c) (Incorporated herein by reference to Post-Effective Amendment No. 19 to the Registration Statement on Form N-4, File No. 333-83516, filed on September 22, 2006);
(4)(i)	Specimen Rider to Flexible Payment Combination Fixed/Variable Individual Annuity Contract filed as Exhibit (4)(c) (Incorporated herein by reference to Post-Effective Amendment No. 19 to the Registration Statement on Form N-4, File No. 333-83516, filed on September 22, 2006);
(4)(j)	Specimen Retirement Income Escalator Rider to Flexible Payment Combination Fixed/Variable Individual Annuity Contract filed as Exhibit (4)(c) (Incorporated herein by reference to Post-Effective Amendment No. 25 to the Registration Statement on Form N-4, File No. 333-83516, filed on February 12, 2008);
(4)(k)	Specimen Retirement Income Escalator II Rider to Flexible Payment Combination Fixed/Variable Individual Annuity Contract filed as Exhibit (4)(c) (Incorporated herein by reference to Post-Effective Amendment No. 28 to the Registration Statement on Form N-4, File No. 333-83516, filed on July 3, 2008);
(4)(l)	Specimen Income ON Demand II Rider to Flexible Payment Combination Fixed/Variable Individual Annuity Contract filed as Exhibit (4)(c) (Incorporated herein by reference to Post-Effective Amendment No. 28 to the Registration Statement on Form N-4, File No. 333-83516, filed on July 3, 2008);
(4)(m)	Specimen Income ON Demand II Escalator Rider to Flexible Payment Combination Fixed/Variable Individual Annuity Contract filed as Exhibit (4)(c) (Incorporated herein by reference to Post-Effective Amendment No. 28 to the Registration Statement on Form N-4, File No. 333-83516, filed on July 3, 2008);
(4)(n)	Specimen Income ON Demand II Plus Rider to Flexible Payment Combination Fixed/Variable Individual Annuity Contract filed as Exhibit (4)(c) (Incorporated herein by reference to Post-Effective Amendment No. 28 to the Registration Statement on Form N-4, File No. 333-83516, filed on July 3, 2008);
(4)(o)	Specimen Income ON Demand III Escalator Rider to Flexible Payment Combination Fixed/Variable Individual Annuity Contract filed as Exhibit (4)(c) (Incorporated herein by reference to Post-Effective Amendment No. 23 to the Registration Statement on Form N-4, File No. 333-83362, filed on June 10, 2009);
(4)(p)	Specimen Sun Income Riser Rider to Flexible Payment Combination Fixed/Variable Individual Annuity Contract filed as Exhibit (4)(c) (Incorporated herein by reference to Post-Effective Amendment No. 23 to the Registration Statement on Form N-4, File No. 333-83362, filed on June 10, 2009);
(5)(a)	Specimen Application to be used with Contract filed as Exhibit 4(a) (Incorporated herein by reference to Pre-Effective Amendment No. 1 to the Registration Statement on Form N-4, File No. 333- 74884, filed on February 14, 2002);
(5)(b)	Specimen Application to be used with Certificate filed as Exhibit 4(b) and Contract filed as Exhibit 4(c) (Incorporated herein by reference to Pre-Effective Amendment No. 1 to the Registration Statement on Form N-4, File No. 333-74884, filed on February 14, 2002);
(6)(a)	Certificate of Incorporation of the Depositor (Incorporated herein by reference to the Depositor's Form 10-K, File No. 333-82824, filed on March 29, 2004);
(6)(b)	By-Laws of the Depositor, as amended March 19, 2004 (Incorporated herein by reference to the Depositor's Form 10-K, File No. 333-82824, filed on March 29, 2004);
(7)	Not Applicable;
(8)(a)	Participation Agreement by and between The Alger American Fund, the Depositor, and Fred Alger and Company, Incorporated (Incorporated herein by reference to Post-Effective Amendment No. 13 to the Registration Statement on Form N-4, File No. 33-41628, filed on April 26, 1999);
(8)(b)	Participation Agreement dated February 17, 1998 by and between Goldman Sachs Variable Insurance Trust, Goldman Sachs & Co. and the Depositor (Incorporated herein by reference to Post-Effective Amendment No. 13 to the Registration Statement on Form N-4, File No. 33-41628, filed on April 26, 1999);
(8)(c)	Amended and Restated Participation Agreement by and among MFS/Sun Life Services Trust, Sun Life Assurance Company of Canada (U.S.), Sun Life Insurance and Annuity Company of New York, and Massachusetts Financial Services Company (Incorporated herein by reference to Post-Effective Amendment No. 3 to the Registration Statement on Form N-4, File No. 333-107983, filed on May 28, 2004);
(8)(d)	Participation Agreement dated February 17, 1998 by and among the Depositor, AIM Variable Insurance Funds, Inc., AIM Distributors, Inc., and Clarendon Insurance Agency, Inc. (Incorporated herein by reference to Post-Effective Amendment No. 1 to the Registration Statement on Form N-4, File No. 333-82957, filed on February 3, 2000);
(8)(e)	Amended and Restated Participation Agreement dated December 18, 2004, by and among Sun Capital Advisers Trust, Sun Capital Advisers, Inc., Sun Life Assurance Company of Canada (U.S.) and Sun Life Insurance and Annuity Company of New York (Incorporated herein by reference to Post-Effective Amendment No. 8 to the Registration Statement on Form N-4, File No. 333-83516, filed on April 26, 2005);
(8)(f)	Participation Agreement dated April 30, 2001 by and among Rydex Variable Trust, Rydex Distributors, Inc., and Sun Life Assurance Company of Canada (U.S.). (Incorporated herein by reference to Post-Effective Amendment No. 7 to the Registration Statement on Form N-4, File No. 333-82957, filed on July 27, 2001);
(8)(g)	Amended and Restated Participation Agreement dated September 1, 2004 by and among Sun Life Assurance Company of Canada (U.S.), Variable Insurance Products Funds, and Fidelity Distributors Corporation. (Incorporated herein by reference to Post-Effective Amendment No. 8 to the Registration Statement on Form N-4, File No. 333-83516, filed on April 26, 2005);
(8)(h)	Participation Agreement dated May 1, 2001 by and among Sun Life Assurance Company of Canada (U.S.), the Depositor, Alliance Capital Management L.P., and Alliance Fund Distributors, Inc. (Incorporated herein by reference to Post-Effective Amendment No. 7 to the Registration Statement on Form N-4, File No. 333-82957, filed on July 27, 2001);
(8)(i)	Participation Agreement dated February 17, 1998 by and among Sun Life Assurance Company of Canada (U.S.), Lord Abbett Series Fund, Inc. and Lord, Abbett & Co. (Incorporated herein by reference to the Registration Statement of Keyport Variable Account A on Form N-4, File No. 333-112506, filed on February 5, 2004);
(8)(j)	Participation Agreement Among Liberty Variable Investment Trust, Liberty Funds Distributor, Inc., and Sun Life Assurance Company of Canada (U.S.) (Incorporated herein by reference to the Registration Statement of Keyport Variable Account A on Form N-4, File No. 333-114126, filed on April 1, 2004);
(8)(k)	Participation Agreement Among SteinRoe Variable Investment Trust, Liberty Funds Distributor, Inc., and Sun Life Assurance Company of Canada (U.S.) (Incorporated herein by reference to the Registration Statement of Keyport Variable Account A on Form N-4, File No. 333-114126, filed on April 1, 2004);
(8)(l)	Participation Agreement Among Wanger Advisors Funds, Wanger Asset Management LP and Sun Life Assurance Company of Canada (U.S.) (Incorporated herein by reference to the Registration Statement of Keyport Variable Account A on Form N-4, File No. 333-114126, filed on April 1, 2004);
(8)(m)	Participation Agreement Among Franklin Templeton Variable Insurance Products Trust, Franklin Templeton Distributors, Inc., Sun Life Assurance Company of Canada (U.S.), Sun Life Insurance and Annuity Company of New York and Clarendon Insurance Agency, Inc. (Incorporated herein by reference to the Registration Statement of KBL Variable Account A on Form N-4, File No. 333-102278, filed on December 31, 2002);
(8)(n)	Participation Agreement Among Sun Life Assurance Company of Canada (U.S.), Sun Life Insurance and Annuity Company of New York, PIMCO Variable Insurance Trust, and PIMCO Funds Distributors LLC (Incorporated herein by reference to the Registration Statement of Keyport Variable Account A on Form N-4, File No. 333-112506, filed on February 5, 2004);
(8)(o)	Participation Agreement Among Oppenheimer Variable Account Funds, Oppenheimer Funds, Inc. and Sun Life Assurance Company of Canada (U.S.) (Incorporated herein by reference to the Registration Statement of Keyport Variable Account A on Form N-4, File No. 333-112506, filed on February 5, 2004);
(8)(p)	Participation Agreement dated February 15, 2005 among Nations Separate Account Trust, BACAP Distributors, LLC, Sun Life Assurance Company of Canada (U.S.) and Sun Life Insurance and Annuity Company of New York (Incorporated herein by reference to Post-Effective Amendment No. 8 to Registration Statement on Form N-4, File No. 333-83516, filed on April 26, 2005);
(8)(q)	Participation Agreement by and among Wanger Advisors Trust, Columbia Funds Distributors, Inc., Sun Life Assurance Company of Canada (U.S.), and Sun Life Insurance and Annuity Company of New York (Incorporated herein by reference to Post-Effective Amendment No. 8 to Registration Statement on Form N-4, File No. 333-83516, filed on April 26, 2005);
(8)(r)	Participation Agreement by and among Liberty Variable Investment Trust, Columbia Funds Distributor, Inc., Sun Life Assurance Company of Canada (U.S.), and Sun Life Insurance and Annuity Company of New York (Incorporated herein by reference to Post-Effective Amendment No. 8 to Registration Statement on Form N-4, File No. 333-83516, filed on April 26, 2005);
(8)(s)	Participation Agreement, dated December 3, 2007, by and among Sun Life Assurance Company of Canada (U.S.), Sun Life Insurance and Annuity Company of New York, Lazard Asset Management Securities LLC, and Lazard Retirement Series, Inc. (Incorporated herein by reference to Post-Effective Amendment No. 25 to the Registration Statement on Form N-4, File No. 333-83516, filed on February 12, 2008);
(8)(t)	Participation Agreement, dated August 6, 2004, by and among Sun Life Assurance Company of Canada (US), Van Kampen Life Investments Trust, Van Kampen Funds Inc., and Van Kampen Asset Management. (Incorporated herein by reference to Post-Effective Amendment No. 4 to the Registration Statement on Form N-6 of Sun Life of Canada (US) Variable Account I, File No. 333-100831, filed on April 29, 2005);
(8)(u)	Participation Agreement, dated May 1, 2004, by and among Sun Life Assurance Company of Canada (U.S.), The Universal Institutional Funds, Inc., Morgan Stanley & Co. Incorporated and Morgan Stanley Investment Management Inc. (Incorporated herein by reference to Post-Effective Amendment No. 5 to the Registration Statement on Form N-6 of Sun Life of Canada (US) Variable Account G, File No. 333-111688, filed on April 27, 2007);
(8)(v)	Participation Agreement, dated December 3, 2007, by and among Sun Life Assurance Company of Canada (U.S.), The Huntington Funds, Edgewood Services, Inc., and Huntington Asset Advisors, Inc. (Incorporated herein by reference to Post-Effective Amendment No. 25 to the Registration Statement on Form N-4, File No. 333-83516, filed on February 12, 2008);
(8)(w)	Participation Agreement, dated May 13, 2004, by and among Sun Life Assurance Company of Canada (U.S.), Merrill Lynch Variable Series Funds, Inc., Merrill Lynch Investment Managers, L.P. and FAM Distributors, Inc. (Incorporated herein by reference to Post-Effective Amendment No. 2 to the Registration Statement of Sun Life of Canada (U.S.) Variable Account G on Form N-6, File No. 333-111688, filed with the Securities and Exchange Commission on December 30, 2005.)
(9)	Opinion of Counsel as to the legality of the securities being registered and Consent to its use (Incorporated herein by reference to Post-Effective Amendment No. 22 to the Registration Statement on Form N-4, File No. 333-83362, filed on April 27, 2009);
(10)(a)	Consent of Independent Registered Public Accounting Firm;*
(10)(b)	Representation of Counsel pursuant to Rule 485(b);*
(11)	Financial Statement Schedules I and VI (Incorporated herein by reference to the Depositor's Form 10-K Annual Report for the fiscal year ended December 31, 2008, filed on March 30, 2009);
(12)	Not Applicable;
(13)	Schedule for Computation of Performance Quotations (Incorporated herein by reference to Post-Effective Amendment No. 10 to the Registration Statement on Form N-4, File No. 33-41628, filed on April 29, 1998);
(14)	Not Applicable;
(15)(a)	Powers of Attorney (Incorporated herein by reference to Post-Effective Amendment No. 21 to the Registration Statement on Form N-4, File No. 333-83362, filed on February 27, 2009);
(15)(b)	Resolution of the Board of Directors of the depositor dated March 26, 2008, authorizing the use of powers of attorney for Officer signatures (Incorporated herein by reference to Post-Effective Amendment No. 32 to the Registration Statement on Form N-4, File No. 333-83516, filed on February 27, 2009);
(16)	Organizational Chart (Incorporated herein by reference to Post-Effective Amendment No. 32 to the Registration Statement on Form N-4, File No. 333-83516, filed on February 27, 2009).

* Filed herewith

Item 25. DIRECTORS AND OFFICERS OF THE DEPOSITOR

Name and Principal Business Address	Positions and Offices With Depositor
Jon A. Boscia Sun Life Assurance Company of Canada (U.S.) One Sun Life Executive Park Wellesley Hills, MA 02481	Director and Chairman
Scott M. Davis Sun Life Assurance Company of Canada (U.S.) One Sun Life Executive Park Wellesley Hills, MA 02481	Senior Vice President and General Counsel and Director
Stephen L. Deschenes Sun Life Assurance Company of Canada  (U.S.) One Sun Life Executive Park Wellesley Hills, MA 02481	Senior Vice President and General Manager, Annuities and Director
Ronald H. Friesen Sun Life Assurance Company of Canada (U.S.) One Sun Life Executive Park Wellesley Hills, MA  02481	Senior Vice President and Chief Financial Officer and Treasurer and Director
Terrence J. Mullen Sun Life Assurance Company of Canada (U.S.) One Sun Life Executive Park Wellesley Hills, MA 02481	Director
Westley V. Thompson Sun Life Assurance Company of Canada (U.S.) One Sun Life Executive Park Wellesley Hills, MA 02481	President, SLF U.S., and Director
Michael S. Bloom Sun Life Assurance Company of Canada (U.S.) One Sun Life Executive Park Wellesley Hills, MA 02481	Assistant Vice President and Senior Counsel and Secretary
Priscilla S. Brown Sun Life Assurance Company of Canada (U.S.) One Sun Life Executive Park Wellesley Hills, MA 02481	Senior Vice President and Head of U.S. Marketing
Keith Gubbay Sun Life Assurance Company of Canada (U.S.) One Sun Life Executive Park Wellesley Hills, MA 02481	Senior Vice President and Chief Actuary
Sean N. Woodroffe Sun Life Assurance Company of Canada (U.S.) One Sun Life Executive Park Wellesley Hills, MA 02481	Vice President, Human Resources
Janet Whitehouse Sun Life Assurance Company of Canada (U.S.) One Sun Life Executive Park Wellesley Hills, MA 02481	Senior Vice President and General Manager, Individual Life Insurance
John R. Wright Sun Life Assurance Company of Canada (U.S.) One Sun Life Executive Park Wellesley Hills, MA 02481	Executive Vice President, Sun Life Financial U.S. Operations

Item 26. PERSONS CONTROLLED BY OR UNDER COMMON CONTROL WITH THE DEPOSITOR OR REGISTRANT

No person is directly or indirectly controlled by the Registrant.  The Registrant is a separate account of Sun Life Assurance Company of Canada (U.S.), which is ultimately controlled by Sun Life Financial.

The organization chart of Sun Life Financial is incorporated by reference to Post-Effective Amendment No. 32 to the Registration Statement on Form N-4, File No. 333-83516, filed February 27, 2009.

None of the companies listed in such Exhibit 16 is a subsidiary of the Registrant; therefore, the only financial statements being filed are those of Sun Life Assurance Company of Canada (U.S.).

Item 27. NUMBER OF CONTRACT OWNERS

As of October 31, 2009 there were 8,392 qualified and 6,483 non-qualified contract owners.

Item 28. INDEMNIFICATION

Pursuant to Section 145 of the Delaware Corporation Law, Article 8 of the By-laws of Sun Life Assurance Company of Canada (U.S.) provides for the indemnification of directors, officers and employees of Sun Life Assurance Company of Canada (U.S.).

Insofar as indemnification for liability arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of Sun Life Assurance Company of Canada (U.S.) pursuant to the certificate of incorporation, by-laws, or otherwise, Sun Life (U.S.) has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by Sun Life (U.S.) of expenses incurred or paid by a director, officer, controlling person of Sun Life (U.S.) in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, Sun Life (U.S.) will submit to a court of appropriate jurisdiction the question whether such indemnification by them is against public policy as expressed in the Act, unless in the opinion of their counsel the matter has been settled by controlling precedent, and will be governed by the final adjudication of such issue.

Item 29. PRINCIPAL UNDERWRITERS

(a) Clarendon Insurance Agency, Inc., a wholly-owned subsidiary of Sun Life Assurance Company of Canada (U.S.), acts as general distributor for the Registrant, Sun Life of Canada (U.S.) Variable Accounts C, D, E, G, I, and K, Keyport Variable Account A, KMA Variable Account, Keyport Variable Account I, KBL Variable Account A, KBL Variable Annuity Account, Sun Life (N.Y.) Variable Accounts A, B, C, D, J, and N and Money Market Variable Account, High Yield Variable Account, Capital Appreciation Variable Account, Government Securities Variable Account, World Governments Variable Account, and Total Return Variable Account.

(b)	Name and Principal	Position and Offices
	Business Address*	with Underwriter
	Terrance J. Mullen	President and Director
	Scott M. Davis	Director
	Ronald H. Friesen	Director
	Michael S. Bloom	Secretary
	Ann B. Teixeira	Assistant Vice President, Compliance
	Kathleen T. Baron	Chief Compliance Officer
	William T. Evers	Assistant Vice President and Senior Counsel
	Jane F. Jette	Financial/Operations Principal and Treasurer
	Alyssa Gair	Assistant Secretary
	Michelle D'Albero	Counsel
	Matthew S. MacMillen	Tax Officer

*The principal business address of all directors and officers of the principal underwriter is, One Sun Life Executive Park, Wellesley Hills, Massachusetts 02481.

(c) Inapplicable.

Item 30. LOCATION OF ACCOUNTS AND RECORDS

Accounts, books and other documents required to be maintained by Section 31(a) of the Investment Company Act of 1940 and the Rules promulgated thereunder are maintained, in whole or in part, by Sun Life Assurance Company of Canada (U.S.) at its offices at One Sun Life Executive Park, Wellesley Hills, Massachusetts 02481 or at the offices of Clarendon Insurance Agency, Inc., at One Sun Life Executive Park, Wellesley Hills, Massachusetts 02481.

Item 31. MANAGEMENT SERVICES

Not Applicable.

Item 32. UNDERTAKINGS

The Registrant hereby undertakes:

(a)	To file a post-effective amendment to this Registration Statement as frequently as is necessary to ensure that the audited financial statements in the Registration Statement are never more than 16 months old for so long as payments under the variable annuity Contracts may be accepted;
(b)	To include either (1) as part of any application to purchase a Contract offered by the prospectus, a space that an Applicant can check to request a Statement of Additional Information, or (2) a post card or similar written communication affixed to or included in the prospectus that the Applicant can remove to send for a Statement of Additional Information;
(c)	To deliver any Statement of Additional Information and any financial statements required to be made available under SEC Form N-4 promptly upon written or oral request.
(d)	Representation with respect to Section 26(f)(2)(A) of the Investment Company Act of 1940: Sun Life Assurance Company of Canada (U.S.) represents that the fees and charges deducted under the Contracts, in the aggregate, are reasonable in relation to the services rendered, the expenses expected to be incurred, and the risks assumed by the insurance company.
	The Registrant is relying on the no-action letter issued by the Division of Investment Management of the Securities and Exchange Commission to American Council of Life Insurance, Ref. No. IP-6-88, dated November 28, 1988, the requirements for which have been complied with by the Registrant.

SIGNATURES

As required by the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies that it meets all of the requirements of Securities Act Rule 485(b) for effectiveness of this Post-Effective Amendment to the Registration Statement and has caused this Post-Effective Amendment to the Registration Statement to be signed on its behalf, in the Town of Wellesley Hills, and Commonwealth of Massachusetts on this 18th day of December, 2009.

SUN LIFE OF CANADA (U.S.) VARIABLE ACCOUNT F
(Registrant)
SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
(Depositor)
By: /s/ Westley V. Thompson*
	Westley V. Thompson
	President, SLF U.S.

*By:	/s/ Elizabeth B. Love
	Elizabeth B. Love
	Counsel

As required by the Securities Act of 1933, this Post-Effective Amendment to the Registration Statement has been signed below by the following persons in the capacities with the Depositor, Sun Life Assurance Company of Canada (U.S.), and on the dates indicated.

SIGNATURE	TITLE	DATE
/s/ Westley V. Thompson*	President, SLF U.S. and Director	December 18, 2009
Westley V. Thompson	(Principal Executive Officer)
/s/ Ronald H. Friesen*	Senior Vice President and Chief Financial Officer	December 18, 2009
Ronald H. Friesen	and Treasurer and Director
	(Principal Financial Officer)
/s/ Douglas C. Miller*	Vice President and Controller	December 18, 2009
Douglas C. Miller	(Principal Accounting Officer)
*By: /s/ Elizabeth B. Love	Attorney-in-Fact for:	December 18, 2009
Elizabeth B. Love	Jon A. Boscia, Director
	Scott M. Davis, Director
	Terrence J. Mullen, Director

*Elizabeth B. Love has signed this document on the indicated date on behalf of the above Directors for the Depositor pursuant to powers or attorney duly executed by such persons and a resolution of the Board of Directors authorizing use of powers of attorney for Officer signatures. Resolution of the Board of Directors is incorporated herein by reference to Post-Effective Amendment No. 32 to the Registration Statement on Form N-4, File No. 333-83516, filed on or about February 27, 2009. Powers of attorney are incorporated herein by reference to Post-Effective Amendment No. 21 to the Registration Statement on Form N-4, File No. 333-83362, filed on February 27, 2009.

EXHIBIT INDEX

(10)(a)	Consent of Independent Registered Public Accounting Firm
(10)(b)	Representation of Counsel pursuant to Rule 485(b)