SUN LIFE OF CANADA U S VARIABLE ACCOUNT F
N-4 EL, 1996-06-05
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<PAGE>
                                                       REGISTRATION NO. 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
 
                              -------------------
 
                                    FORM N-4
 
 
         REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933   /X/
                                      AND
                              AMENDMENT NO. 13 TO
                  REGISTRATION STATEMENT UNDER THE INVESTMENT
                              COMPANY ACT OF 1940                            /X/


                  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 02181
              (ADDRESS OF DEPOSITOR'S PRINCIPAL EXECUTIVE OFFICES)
                  DEPOSITOR'S TELEPHONE NUMBER: (617) 237-6030
                           BONNIE S. ANGUS, SECRETARY
                  SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
                          ONE SUN LIFE EXECUTIVE PARK
                      WELLESLEY HILLS, MASSACHUSETTS 02181
                    (NAME AND ADDRESS OF AGENT FOR SERVICE)
 
                          COPIES OF COMMUNICATIONS TO:
                              DAVID N. BROWN, ESQ.
                              COVINGTON & BURLING
                         1201 PENNSYLVANIA AVENUE, N.W.
                                 P.O. BOX 7566
                             WASHINGTON, D.C. 20044
 
                              -------------------

               APPROXIMATE DATE OF PROPOSED PUBLIC OFFERING:

  As soon as practicable after effectiveness of the Registration Statement.

     CALCULATION OF REGISTRATION FEE UNDER THE SECURITIES ACT OF 1933

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<TABLE>
<CAPTION>

                                          PROPOSED          PROPOSED
                                           MAXIMUM           MAXIMUM        AMOUNT OF
TITLE OF SECURITIES      AMOUNT BEING   OFFERING PRICE      AGGREGATE      REGISTRATION
BEING REGISTERED          REGISTERED       PER UNIT       OFFERING PRICE       FEE
- ----------------------------------------------------------------------------------------
<S>                      <C>            <C>               <C>              <C>
Variable Annuity 
 Contracts                    *              **                 **          $500.00
- ----------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------
</TABLE>

   * Pursuant to the provisions of Rule 24f-2 under the Investment Company
     Act of 1940, an indefinite amount of securities is being registered under
     the Securities Act of 1933.

  ** Not applicable.

THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR 
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT 
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS 
REGISTRATION STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH 
SECTION 8(a) OF THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION 
STATEMENT SHALL BECOME EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING 
PURSUANT TO SAID SECTION 8(a), SHALL DETERMINE.

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>

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

                       Registration Statement on Form N-4

               Cross Reference Sheet Required by Rule 495(a) under
                           The Securities Act of 1933


ITEM NUMBER IN FORM N-4                 LOCATION IN PROSPECTUS; CAPTION

PART A
     1.   Cover Page                    Cover Page

     2.   Definitions                   Definitions

     3.   Synopsis                      Cover Pages; Expense Summary

     4.   Condensed Financial           Performance Data
          Information                   

     5.   General Description of        A Word About the Company, the
          Registrant, Depositor         Fixed Account, the Variable
          and Portfolio Companies       Account, and the Series Fund;
                                        Additional Information
                                        About the Company

     6.   Deductions and Expenses       How the Contract Charges Are Assessed;
                                        Cash Withdrawals, Withdrawal Charges and
                                        Market Value Adjustment

     7.   General Description of        Purchase Payments and Contract
          Variable Annuity Contracts    Values During Accumulation
                                        Period; Other Contractual
                                        Provisions

     8.   Annuity Period                Annuity Provisions

     9.   Death Benefit                 Death Benefit

    10.   Purchases and Contract        Purchase Payments and Contract
          Value                         Values During Accumulation
                                        Period

    11.   Redemptions                   Cash Withdrawals, Withdrawal
                                        Charges and Market Value
                                        Adjustment

    12.   Taxes                         Federal Tax Status

    13.   Legal Proceedings             Legal Proceedings

    14.   Table of Contents of the      Not Applicable
          Statement of Additional
          Information

reggold

<PAGE>

ITEM NUMBER IN FORM N-4                 LOCATION IN PROSPECTUS; CAPTION

PART B

  15.     Cover Page                    Not Applicable

  16.     Table of Contents             Not Applicable

  17.     General Information and       A Word About the Company, the
          History                       Fixed Account, the Variable
                                        Account and the Series Fund;
                                        Additional Information About the
                                        Company

  18.     Services                      Other Contractual Provisions;
                                        Administration of the Contracts

  19.     Purchase of Securities        Purchase Payments and Contract
          Being Offered                 Values During Accumulation Period

  20.     Underwriters                  Distribution of the Contracts

  21.     Calculation of Performance    Performance Data
          Data

  22.     Annuity Payments              Annuity Provisions

  23.     Financial Statements          Financial Statements

<PAGE>

                                     PART A

                      INFORMATION REQUIRED IN A PROSPECTUS



      Attached hereto and made a part hereof is the Preliminary Prospectus 
dated June 5, 1996.

<PAGE>
                                                                      PROSPECTUS
                                                                          , 1996
 
                              MFS REGATTA CLASSIC
 
               --------------------------------------------------
 
    The   master  group   flexible  payment  deferred   annuity  contracts  (the
"Contracts") and related  certificates offered by  this Prospectus are  designed
for  use in connection with retirement  and deferred compensation plans, some of
which may qualify as retirement programs under Sections 401, 403, or 408 of  the
Internal Revenue Code. The Contracts are issued by Sun Life Assurance Company of
Canada  (U.S.) (the "Company"), a wholly-owned  subsidiary of Sun Life Assurance
Company of  Canada, having  its  Principal Executive  Offices  at One  Sun  Life
Executive  Park, Wellesley Hills, Massachusetts 02181, telephone (617) 237-6030.
The Contracts provide  that annuity  payments will  begin on  a selected  future
date.  The Contracts provide for the accumulation of values on either a variable
basis, a fixed basis, or  a fixed and variable basis  and provide for fixed  and
variable annuity payments as elected.
 
    Each Participant under a Contract will receive a Certificate evidencing such
Participant's coverage under the Contract. The initial Purchase Payment for each
Certificate  must be at least $25,000  and each additional Purchase Payment must
be at least  $1,000, unless waived  by the  Company. The prior  approval of  the
Company  is  required before  it will  accept  a Purchase  Payment in  excess of
$1,000,000.
 
    The Participant may elect to have values under the Certificate accumulate on
a fixed  basis in  the Fixed  Account,  which pays  interest at  the  applicable
Guaranteed  Interest  Rate(s)  for  the  duration  of  the  particular Guarantee
Period(s) selected by the  Participant, or on  a variable basis  in Sun Life  of
Canada (U.S.) Variable Account F (the "Variable Account"), a separate account of
the  Company, or divided between the Fixed Account and the Variable Account. The
assets of the Variable Account  are divided into Sub-Accounts. Each  Sub-Account
uses  its assets  to purchase, at  their net  asset value, shares  of a specific
series of  MFS/Sun  Life  Series Trust    (the  "Series Fund"),  a  mutual  fund
registered   under  the  Investment   Company  Act  of   1940,  and  advised  by
Massachusetts Financial Services Company, a subsidiary of the Company.  Eighteen
series  are  available  for investment  under  the Contracts:  (1)  Money Market
Series; (2) High Yield Series;  (3) Capital Appreciation Series; (4)  Government
Securities  Series; (5) World  Governments Series; (6)  Total Return Series; (7)
Managed Sectors Series;  (8) Conservative Growth  Series; (9) Utilities  Series;
(10)  World Growth  Series; (11)  Research Series;  (12) World  Asset Allocation
Series; (13)  World  Total Return  Series;  (14) Emerging  Growth  Series;  (15)
MFS/Foreign  & Colonial International Growth Series; (16) MFS/Foreign & Colonial
International Growth and  Income Series;  (17) MFS/Foreign  & Colonial  Emerging
Markets  Equity  Series;  and  (18)  Value  Series.  The  Series  Fund  pays its
investment adviser certain fees charged against  the assets of each Series.  The
value of the variable portion, if any, of a Participant's Account and the amount
of  variable annuity payments will vary to reflect the investment performance of
the series of the Series Fund selected  by the Participant and the deduction  of
the  contract charges described under "How the Contract Charges Are Assessed" on
page 24. For more information  about the Series Fund,  see "The Series Fund"  on
page 14 and the accompanying Series Fund prospectus.
 
                                                        (CONTINUED ON NEXT PAGE)
 
THE  CONTRACTS ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR ENDORSED BY,
ANY BANK,  AND  ARE NOT  FEDERALLY  INSURED  BY THE  FEDERAL  DEPOSIT  INSURANCE
CORPORATION, THE FEDERAL RESERVE BOARD, OR ANY OTHER AGENCY.
 
THESE  SECURITIES HAVE  NOT BEEN APPROVED  OR DISAPPROVED BY  THE SECURITIES AND
EXCHANGE COMMISSION NOR HAS THE COMMISSION PASSED UPON THE ACCURACY OR  ADEQUACY
OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
 
THIS  PROSPECTUS IS  VALID ONLY  WHEN ACCOMPANIED  BY THE  CURRENT PROSPECTUS OF
MFS/SUN LIFE  SERIES TRUST.  YOU  SHOULD RETAIN  THESE PROSPECTUSES  FOR  FUTURE
REFERENCE.
 
*ANY REFERENCE IN THIS PROSPECTUS TO RECEIPT BY THE COMPANY MEANS RECEIPT AT ITS
ANNUITY  SERVICE MAILING ADDRESS, C/O SUN  LIFE ANNUITY SERVICE CENTER, P.O. BOX
1024, BOSTON, MASSACHUSETTS 02103.
<PAGE>
    If the  Participant elects  to have  values accumulated  on a  fixed  basis,
Purchase  Payments are allocated to one or more Guarantee Periods made available
by the  Company  in  connection  with  the Fixed  Account  as  selected  by  the
Participant.  The Fixed Account is the general  account of the Company (See "The
Fixed Account" on page 12).  The Company will credit interest  at a rate of  not
less than three percent (3%) per year, compounded annually, to amounts allocated
to the Fixed Account and guarantees these amounts at various interest rates (the
"Guaranteed Interest Rates") for the duration of the Guarantee Period elected by
the  Participant, subject to the imposition of any applicable withdrawal charge,
Market Value  Adjustment, or  account administration  fee. The  Company may  not
change  a Guaranteed  Interest Rate  for the  duration of  the Guarantee Period;
however, Guaranteed Interest  Rates applicable to  subsequent Guarantee  Periods
cannot be predicted and will be determined at the sole discretion of the Company
(subject  to the  minimum guarantee  of three  percent (3%)).  That part  of the
Contract relating to the Fixed Account is registered under the Securities Act of
1933, but the Fixed Account is not subject to the restrictions of the Investment
Company Act of 1940.
 
    The Company does not deduct a sales charge from Purchase Payments.  However,
a  withdrawal charge (contingent  deferred sales charge) may  be assessed by the
Company. This charge is intended to reimburse the Company for expenses  relating
to  the distribution of the Contracts and Certificates. After a Purchase Payment
has been held by the  Company for one year it  may be withdrawn without  charge.
Also,  no withdrawal  charge is assessed  upon annuitization  or upon transfers.
Other amounts withdrawn, adjusted by any applicable Market Value Adjustment with
respect to the Fixed Account, will be  subject to a withdrawal charge of 1%.  In
no  event  will  the the  withdrawal  charges assessed  against  a Participant's
Account exceed 1% of Purchase Payments (See "Withdrawal Charges" on page 21).
 
    In addition, any cash withdrawal of amounts allocated to the Fixed  Account,
other than a withdrawal effective within 30 days prior to the Expiration Date of
the  applicable Guarantee Period, will be  subject to a Market Value Adjustment.
The Market Value Adjustment  will reflect the  relationship between the  Current
Rate  (which is the  Guaranteed Interest Rate currently  declared by the Company
for Guarantee Periods equal to the balance of the Guarantee Period applicable to
the amount being withdrawn) and the  Guaranteed Interest Rate applicable to  the
amount being withdrawn. Generally, if the Guaranteed Interest Rate is lower than
the  Current  Rate, then  the application  of the  Market Value  Adjustment will
result in a lower payment upon withdrawal. Similarly, if the Guaranteed Interest
Rate is  higher than  the Current  Rate,  the application  of the  Market  Value
Adjustment  will result in  a higher payment upon  withdrawal (See "Market Value
Adjustment" on page 22).
 
    The Company reserves  the right to  defer the payment  of amounts  withdrawn
from  the Fixed  Account for  a period not  to exceed  six months  from the date
written request for such withdrawal is received by the Company.
 
    Special restrictions  on withdrawals  apply to  Certificates used  with  Tax
Sheltered  Annuities  established pursuant  to  Section 403(b)  of  the Internal
Revenue Code (See "Section 403(b) Annuities" on page 22).
 
    In addition,  under  certain circumstances  withdrawals  may result  in  tax
penalties  (See "Federal  Tax Status").  For a  discussion of  cash withdrawals,
withdrawal charges  and  the  Market Value  Adjustment  see  "Cash  Withdrawals,
Withdrawal Charges and Market Value Adjustment" beginning on page 20.
 
    On each Account Anniversary and on surrender of a Certificate for full value
the  Company will deduct a $50 annual account administration fee ("Account Fee")
from the Participant's Account. After  the Annuity Commencement Date the  annual
Account  Fee will be deducted  pro rata from each  variable annuity payment made
during the year. In  addition, the Company makes  a deduction from the  Variable
Account  at the end of each Valuation Period equal to an annual rate of 0.15% of
the daily net assets of the Variable Account. These charges are to reimburse the
Company for administrative expenses related  to the issuance and maintenance  of
the  Contracts and Certificates. The  Account Fee will be  waived by the Company
when a  Participant's Account  Value is  greater than  $100,000 on  the  Account
Anniversary (See "Administrative Charges" on page 25).
 
                                       2
<PAGE>
    The  Company also deducts a mortality and  expense risk charge at the end of
each Valuation Period equal to an annual  rate of 1.00% of the daily net  assets
of  the Variable Account for mortality and  expense risks assumed by the Company
(See "Mortality and Expense Risk Charge" on page 25).
 
    Under certain circumstances  the Company  may substitute  shares of  another
registered  open-end investment company or unit investment trust both for Series
Fund shares already purchased by the Variable Account and as the security to  be
purchased  in the  future. Also,  upon notice to  the Owner,  Participant or the
Payee during the  annuity period, the  Company may modify  the contract if  such
modification:  (i) is  necessary to  make the  Contract or  the Variable Account
comply with any law or regulation issued  by a governmental agency to which  the
Company  or the  Variable Account  is subject;  or (ii)  is necessary  to assure
continued qualification of the Contract under the Internal Revenue Code or other
federal or state laws relating to retirement annuities or annuity contracts;  or
(iii)  is necessary to reflect a change in the operation of the Variable Account
or the Sub-Accounts; or (iv)  provides additional Variable Account and/or  fixed
accumulation  options (See "Substituted Securities"  and "Change in Operation of
Variable Account" on page 32 and "Modification" on page 32).
 
    In  addition,  the  Contracts  provide  that  the  Company  may  change  the
withdrawal   charges,  Account   Fee,  mortality   and  expense   risk  charges,
administrative expense charges, transfer charges, the tables used in determining
the amount  of the  first monthly  variable annuity  payment and  fixed  annuity
payments and the formula used to calculate the Market Value Adjustment, provided
that  such modification shall apply only  with respect to Participant's Accounts
established after the effective date of such modification (See "Modification" on
page 32).
 
    In the event of the death of the Annuitant prior to the Annuity Commencement
Date, the Company will pay a death  benefit to the Beneficiary. If the death  of
the Annuitant occurs on or after the Annuity Commencement Date, no death benefit
will  be payable except as may be provided under the Annuity Option elected (See
"Death Benefit" on page 23).
 
    Annuity  Payments  will  begin  on   the  Annuity  Commencement  Date.   The
Participant selects the Annuity Commencement Date, frequency of payments and the
Annuity Option (See "Annuity Provisions" on page 26).
 
    Premium  taxes payable to any governmental  entity will be deducted from the
Participant's Account (See "Premium Taxes" on page 25).
 
    Subject to  certain  conditions, and  during  the Accumulation  Period,  the
Participant  may transfer  amounts among  the Sub-Accounts  or Guarantee Periods
available under  the  Contract. Currently  there  is no  charge  for  transfers.
Transfers  from or within the Fixed Account  will be subject to the Market Value
Adjustment unless  the  transfer  is  effective within  30  days  prior  to  the
Expiration  Date of the amount transferred and other restrictions may apply (See
"Transfer Privilege; Restriction on Market Timers" on page 19).
 
    After the  Annuity Commencement  Date,  the Payee  may, subject  to  certain
restrictions,  exchange the  value of  a designated  number of  Annuity Units of
particular Sub-Accounts then credited with  respect to the particular Payee  for
other  Annuity Units, the value of which would be such that the dollar amount of
an annuity payment made on the date  of the exchange would be unaffected by  the
fact of the exchange (See "Exchange of Variable Annuity Units" on page 29).
 
    The  Company  will  vote Series  Fund  shares  held by  the  Sub-Accounts at
meetings of shareholders of the Series Fund, but will follow voting instructions
received from persons having the right to give voting instructions. The Owner or
Participant is the person having the right to give voting instructions prior  to
the  Annuity Commencement  Date. On or  after the Annuity  Commencement Date the
Payee is the person  having such voting rights.  Any shares attributable to  the
Company  and  Series Fund  shares for  which no  timely voting  instructions are
received will be voted by the Company  in the same proportion as the shares  for
which  instructions are received from persons  having such right (See "Voting of
Series Fund Shares" on page 31).
 
                                       3
<PAGE>
    The Company will furnish Participants  and such other persons having  voting
rights with certain reports and statements described under "Periodic Reports" on
page  32. Such reports, other than  prospectuses, will not include the Company's
financial statements.
 
    If a Participant is not satisfied with the Certificate it may be returned to
the Company at its Annuity Service Mailing Address within ten days after it  was
delivered to the Participant. When the Company receives the returned Certificate
it  will be  cancelled and  the Participant's  Account Value  at the  end of the
Valuation Period during which the Certificate  was received by the Company  will
be  refunded. However, if applicable  state law so requires,  the full amount of
any Purchase Payment received by the  Company will be refunded, the "free  look"
period  may be greater  than ten days  and alternative methods  of returning the
Certificate may be acceptable.
 
                             AVAILABLE INFORMATION
 
    The Company is subject to  the informational requirements of the  Securities
Exchange  Act of 1934 (the "1934 Act"),  as amended, and in accordance therewith
files reports and other information with the Securities and Exchange  Commission
(the  "Commission"). Such  reports and  other information  can be  inspected and
copied at the public  reference facilities of the  Commission at Room 1024,  450
Fifth  Street, N.W., Washington,  D.C. and at  the Commission's Regional Offices
located at 75 Park Place, New York, New York and Northwestern Atrium Center, 500
West Madison Street, Suite  1400, Chicago, Illinois  60661-2511. Copies of  such
materials  also  can  be  obtained  from the  Public  Reference  Section  of the
Commission at  450 Fifth  Street, N.W.,  Washington, D.C.  20549, at  prescribed
rates.
 
    The   Company   has   filed  registration   statements   (the  "Registration
Statements") with the Commission  under the Securities Act  of 1933 relating  to
the  Contracts offered by this  Prospectus. This Prospectus has  been filed as a
part of the Registration Statements and does not contain all of the  information
set  forth in the Registration Statements and exhibits thereto, and reference is
hereby made to such Registration Statements and exhibits for further information
relating to the Company and the  Contracts. The Registration Statements and  the
exhibits  thereto may  be inspected  and copied, and  copies can  be obtained at
prescribed rates, in the manner set forth in the preceding paragraph.
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
    The Annual Report  on Form 10-K  for the  year ended December  31, 1995  and
Quarterly  Report on Form 10-Q  for the quarter ended  March 31, 1996 heretofore
filed by the Company with the Commission under the 1934 Act are incorporated  by
reference in this Prospectus.
 
    Any statement contained in a document incorporated by reference herein shall
be deemed modified or superseded hereby to the extent that a statement contained
in  a later-filed document  or herein shall modify  or supersede such statement.
Any statement  so modified  or superseded  shall  not be  deemed, except  as  so
modified or superseded, to constitute a part of this Prospectus.
 
    The  Company will furnish, without charge, to  each person to whom a copy of
this Prospectus is delivered, upon the written or oral request of such person, a
copy of the document referred to above which has been incorporated by  reference
in  this Prospectus, other than exhibits  to such document (unless such exhibits
are specifically incorporated by reference in the Prospectus). Requests for such
document should be directed  to Bonnie S. Angus,  Secretary, Sun Life  Assurance
Company  of  Canada  (U.S.),  One  Sun  Life  Executive  Park,  Wellesley Hills,
Massachusetts 02181, telephone (617) 237-6030.
 
                                       4
<PAGE>
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                  PAGE
<S>                                                               <C>
Definitions                                                         7
Expense Summary                                                     9
Performance Data                                                   11
This Prospectus Is a Catalog of Facts                              11
Uses of the Contract                                               11
A Word About the Company, the Fixed Account, the Variable
  Account and the Series Fund                                      12
    The Company                                                    12
    The Fixed Account                                              12
    The Variable Account                                           13
    The Series Fund                                                14
Purchase Payments and Contract Values During Accumulation
  Period                                                           16
    Purchase Payments                                              16
    Participant's Account                                          17
    Variable Accumulation Value                                    17
    Fixed Accumulation Value                                       18
    Guarantee Periods                                              18
    Dollar Cost Averaging                                          19
    Guaranteed Interest Rates                                      19
    Transfer Privilege; Restriction on Market Timers               19
Cash Withdrawals, Withdrawal Charges and Market Value
  Adjustment                                                       20
    Cash Withdrawals                                               20
    Withdrawal Charges                                             21
    Amount of Withdrawal Charge                                    22
    Section 403(b) Annuities                                       22
    Market Value Adjustment                                        22
Death Benefit                                                      23
    Death Benefit Provided by the Contract                         23
    Election and Effective Date of Election                        23
    Payment of Death Benefit                                       24
    Amount of Death Benefit                                        24
How the Contract Charges Are Assessed                              24
    Administrative Charges                                         25
    Premium Taxes                                                  25
    Mortality and Expense Risk Charge                              25
    Withdrawal Charges                                             26
Annuity Provisions                                                 26
    Annuity Commencement Date                                      26
    Election--Change of Annuity Option                             26
    Annuity Options                                                27
    Determination of Annuity Payments                              28
    Fixed Annuity Payments                                         28
    Variable Annuity Payments                                      28
    Annuity Unit Value                                             29
    Exchange of Variable Annuity Units                             29
    Annuity Payment Rates                                          29
</TABLE>
 
                                       5
<PAGE>
                         TABLE OF CONTENTS--(CONTINUED)
<TABLE>
<CAPTION>
                                                                  PAGE
<S>                                                               <C>
Other Contractual Provisions                                       29
    Payment Limits                                                 29
    Designation and Change of Beneficiary                          29
    Exercise of Contract Rights                                    30
    Change of Ownership                                            30
    Death of Participant                                           30
    Voting of Series Fund Shares                                   31
    Periodic Reports                                               32
    Substituted Securities                                         32
    Change in Operation of Variable Account                        32
    Splitting Units                                                32
    Modification                                                   32
    Discontinuance of New Participants                             33
    Custodian                                                      33
    Right to Return Contract                                       33
Federal Tax Status                                                 33
    Introduction                                                   33
    Tax Treatment of the Company and the Variable Account          34
    Taxation of Annuities in General                               34
    Qualified Retirement Plans                                     36
    Pension and Profit-Sharing Plans                               36
    Tax-Sheltered Annuities                                        36
    Individual Retirement Accounts                                 36
Administration of the Contracts                                    37
Distribution of the Contracts                                      37
Additional Information About the Company                           38
    Selected Financial Data                                        38
    Management's Discussion and Analysis of Financial
     Condition and Results of Operations                           38
    Liquidity                                                      41
    Reinsurance                                                    41
    Reserves                                                       41
    Investments                                                    41
    Competition                                                    42
    Employees                                                      42
    Properties                                                     42
The Company's Directors and Executive Officers                     42
State Regulation                                                   45
Legal Proceedings                                                  46
Legal Matters                                                      46
Accountants                                                        46
Registration Statements                                            46
Financial Statements                                               47
Interim Period Financial Statements                                78
Appendix A--Variable Accumulation Unit Value, Variable
  Annuity Unit Value and Variable Annuity Payment
  Calculations
Appendix B--State Premium Taxes
Appendix C--Withdrawals, Withdrawal Charges and the Market
  Value Adjustment
Appendix D--Calculation of Performance Data; Advertising and
  Sales Literature
</TABLE>
 
                                       6
<PAGE>
                                  DEFINITIONS
 
    The following terms as used in this Prospectus have the indicated meanings:
 
    ACCOUNT  YEARS AND ACCOUNT  ANNIVERSARIES:  The first  Account Year shall be
the period of 12  months plus a  part of a  month as measured  from the Date  of
Coverage  for each  Participant to  the first  day of  the calendar  month which
follows the  calendar month  of coverage.  All Account  Years and  Anniversaries
thereafter  shall be 12 month periods based  upon such first day of the calendar
month which follows the calendar month of coverage. If, for example, the Date of
Coverage is in March, the first Account Year will be determined from the Date of
Coverage but will end on the last day of March in the following year; all  other
Account Years and all Account Anniversaries will be measured from April 1.
 
    ACCUMULATION  PERIOD:  The  period before the  Annuity Commencement Date and
during the lifetime of the Annuitant.
 
    ANNUITANT:  The person or persons named in the Application and on whose life
the first annuity payment  is to be  made. The Participant  may not designate  a
"Co-Annuitant"  unless the Participant  and Annuitant are  different persons. If
more than one person is so named, all provisions of the Contract which are based
on the death of the "Annuitant" will be  based on the date of death of the  last
surviving of the persons so named. By example, the death benefit will become due
only  upon  the death,  prior  to the  Annuity  Commencement Date,  of  the last
surviving of the persons so named.  Collectively, these persons are referred  to
in  this Contract as  "Annuitants." The Participant  is not permitted  to name a
"Co-Annuitant" under a Qualified Contract.
 
    *ANNUITY COMMENCEMENT DATE:   The date  on which the  first annuity  payment
under each Certificate is to be made.
 
    *ANNUITY OPTION:  The method for making annuity payments.
 
    ANNUITY  UNIT:  A unit  of measure used in the  calculation of the amount of
the second  and  each subsequent  variable  annuity payment  from  the  Variable
Account.
 
    APPLICATION:   The document signed by each Participant that serves as his or
her application for participation under this Contract.
 
    *BENEFICIARY:  The person  or entity having the  right to receive the  death
benefit  set forth in each Certificate  and, for Non-Qualified Contracts, who is
the "designated  beneficiary" for  purposes  of Section  72(s) of  the  Internal
Revenue Code in the event of the Participant's death.
 
    CERTIFICATE:  The document for each Participant which evidences the coverage
of the Participant under the Contract.
 
    COMPANY:  Sun Life Assurance Company of Canada (U.S.).
 
    CONTRACT  APPLICATION:  The document signed  by the Owner that evidences the
Owner's application for this Contract.
 
    DATE OF  COVERAGE:   The  date  on  which a  Participant's  Account  becomes
effective.
 
    DUE  PROOF  OF DEATH:    An original  certified  copy of  an  official death
certificate, an original  certified copy  of a decree  of a  court of  competent
jurisdiction  as to the finding of death, or any other proof satisfactory to the
Company.
 
    EXPIRATION DATE: The last day of a Guarantee Period.
 
    FIXED ACCOUNT:   The Fixed  Account consists of  all assets  of the  Company
other than those allocated to a separate account of the Company.
 
    FIXED  ANNUITY:   An annuity with  payments which  do not vary  as to dollar
amount.
 
    GUARANTEE AMOUNT:  Any portion of a Participant's Account Value allocated to
a particular  Guarantee  Period with  a  particular Expiration  Date  (including
interest earned thereon).
 
    GUARANTEE  PERIOD:   The  period  for which  a  Guaranteed Interest  Rate is
credited.
 
- ---------
*As specified in the Application, unless changed.
 
                                       7
<PAGE>
    GUARANTEED INTEREST RATE:  The rate of interest credited by the Company on a
compound annual basis during any Guarantee Period.
 
    ISSUE DATE:  The date on which the Contract becomes effective.
 
    NON-QUALIFIED CONTRACT:   A Contract  used in connection  with a  retirement
plan  which  does  not  receive favorable  federal  income  tax  treatment under
Sections 401,  403, or  408  of the  Internal  Revenue Code.  The  Participant's
interest  in the  Contract must  be owned  by a  natural person  or agent  for a
natural person for the Contract to receive favorable income tax treatment as  an
annuity.
 
    *OWNER:   The  person, persons  or entity  entitled to  the ownership rights
stated in the Contract and  in whose name or names  the Contract is issued.  The
Owner  may designate a trustee or custodian of a retirement plan which meets the
requirements of Section 401,  Section 408(c) or Section  408(k) of the  Internal
Revenue  Code to serve  as legal owner of  assets of a  retirement plan, but the
term "Owner", as used herein, shall refer to the organization entering into  the
Contract.
 
    PARTICIPANT:    The  person named  in  the  Certificate who  is  entitled to
exercise all rights and privileges of ownership under the Certificate, except as
reserved by the Owner.
 
    PARTICIPANT'S ACCOUNT:  An account established for each Participant to which
Net Purchase Payments are credited.
 
    PARTICIPANT'S ACCOUNT VALUE:  The variable accumulation value, if any,  plus
the  fixed  accumulation  value, if  any,  of  a Participant's  Account  for any
Valuation Period.
 
    PAYEE:  A  recipient of payments  under the Contract.  The term includes  an
Annuitant  or a Beneficiary who  becomes entitled to benefits  upon the death of
the Annuitant.
 
    PURCHASE PAYMENT (PAYMENT):  An amount paid to the Company as  consideration
for the benefits provided by the Contract.
 
    QUALIFIED  CONTRACT:  A  Contract used in connection  with a retirement plan
which receives favorable federal income  tax treatment under Sections 401,  403,
or 408 of the Internal Revenue Code of 1986, as amended.
 
    RECEIPT:   Receipt  by the  Company at  its Annuity  Service Mailing Address
shown on the cover of this Prospectus.
 
    SERIES FUND:  MFS/Sun Life Series Trust.
 
    SUB-ACCOUNT:  That portion of the  Variable Account which invests in  shares
of a specific series or sub-series of the Series Fund.
 
    VALUATION  PERIOD:   The period of  time from one  determination of Variable
Accumulation Unit and Annuity Unit  values to the next subsequent  determination
of  these values. Such  determination shall be made  as of the  close of the New
York Stock Exchange on  each day the  Exchange is open for  trading and on  such
other  days on which  there is a  sufficient degree of  trading in the portfolio
securities of the Variable Account so  that the values of Variable  Accumulation
Units and Annuity Units might be materially affected.
 
    VARIABLE  ACCOUNT:  A  separate account of the  Company consisting of assets
set aside by the Company, the  investment performance of which is kept  separate
from that of the general assets of the Company.
 
    VARIABLE  ACCUMULATION UNIT:  A  unit of measure used  in the calculation of
the value of the variable portion of a Participant's Account.
 
    VARIABLE ANNUITY:  An annuity with  payments which vary as to dollar  amount
in  relation  to the  investment performance  of  specified Sub-Accounts  of the
Variable Account.
 
    YEAR:  Any consecutive period of 365 days.
 
- ---------
*As specified in the Application, unless changed.
 
                                       8
<PAGE>
                                EXPENSE SUMMARY
 
    The purpose of the following table  and Example is to help Participants  and
prospective  purchasers to  understand the  costs and  expenses that  are borne,
directly and  indirectly, by  Participants WHEN  PAYMENTS ARE  ALLOCATED TO  THE
VARIABLE ACCOUNT. The table reflects expenses of the Variable Account as well as
of the Series Fund. The information set forth should be considered together with
the narrative provided under the heading "How the Contract Charges Are Assessed"
in  this Prospectus, and with  the Series Fund's prospectus.  In addition to the
expenses listed below, premium taxes may be applicable.
<TABLE>
<CAPTION>
                                               CAPITAL
                             MONEY     HIGH    APPRE-    GOVERNMENT      WORLD
 PARTICIPANT                 MARKET   YIELD    CIATION   SECURITIES   GOVERNMENTS
 TRANSACTION EXPENSES        SERIES   SERIES   SERIES      SERIES       SERIES
 --------------------------  ------   ------   -------   ----------   -----------
 <S>                         <C>      <C>      <C>       <C>          <C>
 Sales Load Imposed on
  Purchases                      0        0        0           0            0
 Deferred Sales Load (as a
  percentage of Purchase
  Payments withdrawn)
   Number of Complete Years
    Purchase Payment in
    Account
     Less than 1...........      1%       1%       1%          1%           1%
     1 or more.............      0%       0%       0%          0%           0%
 Exchange fee(1)...........      0        0        0           0            0
 
<CAPTION>
 ANNUAL ACCOUNT FEE (2)                 $50 Per Participant's Account
 --------------------------
 SEPARATE ACCOUNT ANNUAL
 EXPENSES
 --------------------------
 <S>                         <C>      <C>      <C>       <C>          <C>
 (as a percentage of
 average separate account
 assets)
 Mortality and Expense Risk
  Fees.....................   1.00%    1.00%    1.00%       1.00%        1.00%
 Administrative Expense
  Charge...................   0.15%    0.15%    0.15%       0.15%        0.15%
 Other Fees and Expenses of
  the Separate Account.....   0.00%    0.00%    0.00%       0.00%        0.00%
 Total Separate Account
  Annual Expenses..........   1.15%    1.15%    1.15%       1.15%        1.15%
<CAPTION>
 SERIES FUND ANNUAL
 EXPENSES
 --------------------------
 <S>                         <C>      <C>      <C>       <C>          <C>
 (as a percentage of Series
 Fund average net assets)
 Management Fees...........   0.50%    0.75%    0.75%       0.55%        0.75%
 Other Expenses............   0.09%    0.12%    0.08%       0.08%        0.14%
 Total Series Fund Annual
  Expenses.................   0.59%    0.87%    0.83%       0.63%        0.89%
 
<CAPTION>
 
                             TOTAL    MANAGED   CONSERVATIVE
 PARTICIPANT                 RETURN   SECTORS      GROWTH      UTILITIES
 TRANSACTION EXPENSES        SERIES   SERIES       SERIES        SERIES
 --------------------------  ------   -------   ------------   ----------
 <S>                         <C>      <C>       <C>            <C>
 Sales Load Imposed on
  Purchases                      0        0            0            0
 Deferred Sales Load (as a
  percentage of Purchase
  Payments withdrawn)
   Number of Complete Years
    Purchase Payment in
    Account
     Less than 1...........      1%       1%           1%           1%
     1 or more.............      0%       0%           0%           0%
 Exchange fee(1)...........      0        0            0            0
 ANNUAL ACCOUNT FEE (2)
 --------------------------
 SEPARATE ACCOUNT ANNUAL
 EXPENSES
 --------------------------
 <S>                         <C>      <C>       <C>            <C>
 (as a percentage of
 average separate account
 assets)
 Mortality and Expense Risk
  Fees.....................   1.00%    1.00%        1.00%        1.00%
 Administrative Expense
  Charge...................   0.15%    0.15%        0.15%        0.15%
 Other Fees and Expenses of
  the Separate Account.....   0.00%    0.00%        0.00%        0.00%
 Total Separate Account
  Annual Expenses..........   1.15%    1.15%        1.15%        1.15%
 SERIES FUND ANNUAL
 EXPENSES
 --------------------------
 <S>                         <C>      <C>       <C>            <C>
 (as a percentage of Series
 Fund average net assets)
 Management Fees...........   0.70%    0.75%        0.55%        0.75%
 Other Expenses............   0.06%    0.09%        0.09%        0.20%
 Total Series Fund Annual
  Expenses.................   0.76%    0.84%        0.64%        0.95%
</TABLE>
<TABLE>
<CAPTION>
                                                        WORLD       WORLD
                                 WORLD                  ASSET       TOTAL     EMERGING
PARTICIPANT                      GROWTH    RESEARCH   ALLOCATION    RETURN     GROWTH
TRANSACTION EXPENSES             SERIES     SERIES      SERIES      SERIES     SERIES
- ------------------------------  --------   --------   ----------   --------   --------
<S>                             <C>        <C>        <C>          <C>        <C>
Sales Load Imposed on
  Purchases                        0          0           0           0          0
Deferred Sales Load (as a
  percentage of Purchase
  Payments withdrawn)
  Number of Complete Years
   Purchase Payment in Account
    Less than 1...............     1%         1%          1%          1%         1%
    1 or more.................     0%         0%          0%          0%         0%
Exchange fee(1)...............     0          0           0           0          0
 
<CAPTION>
ANNUAL ACCOUNT FEE (2)                      $50 Per Participant's Account
- ------------------------------
SEPARATE ACCOUNT ANNUAL
EXPENSES
- ------------------------------
<S>                             <C>        <C>        <C>          <C>        <C>
(as a percentage of average
separate account assets)
Mortality and Expense Risk
  Fees........................  1.00%      1.00%       1.00%       1.00%      1.00%
Administrative Expense
  Charge......................  0.15%      0.15%       0.15%       0.15%      0.15%
Other Fees and Expenses of the
  Separate Account............  0.00%      0.00%       0.00%       0.00%      0.00%
Total Separate Account Annual
  Expenses....................  1.15%      1.15%       1.15%       1.15%      1.15%
<CAPTION>
SERIES FUND ANNUAL EXPENSES
- ------------------------------
<S>                             <C>        <C>        <C>          <C>        <C>
(as a percentage of Series
Fund average net assets)
Management Fees...............  0.75%      0.75%       0.75%       0.75%      0.75%
Other Expenses................  0.32%      0.20%       0.36%       0.44%      0.25%
Total Series Fund Annual
  Expenses....................  1.07%      0.95%       1.11%       1.19%      1.00%
 
<CAPTION>
                                                 MFS/FOREIGN     MFS/FOREIGN
                                 MFS/FOREIGN     & COLONIAL       & COLONIAL
                                 & COLONIAL     INTERNATIONAL      EMERGING
PARTICIPANT                     INTERNATIONAL    GROWTH AND     MARKETS EQUITY
TRANSACTION EXPENSES            GROWTH SERIES   INCOME SERIES       SERIES       VALUE SERIES
- ------------------------------  -------------   -------------   --------------   ------------
<S>                             <C>             <C>             <C>              <C>
Sales Load Imposed on
  Purchases                            0               0               0               0
Deferred Sales Load (as a
  percentage of Purchase
  Payments withdrawn)
  Number of Complete Years
   Purchase Payment in Account
    Less than 1...............         1%              1%              1%              1%
    1 or more.................         0%              0%              0%              0%
Exchange fee(1)...............         0               0               0               0
ANNUAL ACCOUNT FEE (2)
- ------------------------------
SEPARATE ACCOUNT ANNUAL
EXPENSES
- ------------------------------
<S>                             <C>             <C>             <C>              <C>
(as a percentage of average
separate account assets)
Mortality and Expense Risk
  Fees........................      1.00%           1.00%           1.00%           1.00%
Administrative Expense
  Charge......................      0.15%           0.15%           0.15%           0.15%
Other Fees and Expenses of the
  Separate Account............      0.00%           0.00%           0.00%           0.00%
Total Separate Account Annual
  Expenses....................      1.15%           1.15%           1.15%           1.15%
SERIES FUND ANNUAL EXPENSES
- ------------------------------
<S>                             <C>             <C>             <C>              <C>
(as a percentage of Series
Fund average net assets)
Management Fees...............      0.00%(3)       0.975%           0.00%(3)        0.00%(3)
Other Expenses................      1.50%(4)       0.525%           1.50%(4)        1.50%(4)
Total Series Fund Annual
  Expenses....................      1.50%           1.50%(4)        1.50%           1.50%
</TABLE>
 
- ------------
(1) A Market Value  Adjustment may  be imposed  on amounts  transferred from  or
    within the Fixed Account.
 
(2) The  Annual Account Fee is $50. The  Company will waive the Account Fee when
    the Participant's  Account Value  is greater  than $100,000  on the  Account
    Anniversary.
 
(3) The Series Fund's investment adviser (the "Adviser") has voluntarily reduced
    the  management fees  for the Value  Series, and the  MFS/Foreign & Colonial
    International Growth  Series and  Emerging Markets  Equity Series  to 0%  of
    average  daily  net  assets  on  an  annualized  basis.  This  voluntary fee
    reduction may be  rescinded at  any time. Absent  this voluntary  reduction,
    management  fees payable would be 0.75% for the Value Series, 0.975% for the
    International Growth  Series  and  1.25% for  the  Emerging  Markets  Equity
    Series.
 
(4) Other expenses of the Value Series and the MFS/Foreign & Colonial Series are
    based  on estimated  amounts for  the current  fiscal year.  The Adviser has
    undertaken to reimburse each of these series for expenses that exceed  1.50%
    of  the average daily net  assets of such series  on an annualized basis, as
    more  fully  described  in  the   Series  Fund's  Prospectus.  Absent   such
    reimbursement,  expenses of the MFS/Foreign  & Colonial International Growth
    and Income Series for 1995 would have been 1.63%. The other series commenced
    operations in 1996.
 
                                       9
<PAGE>
                                    EXAMPLE
 
    If you do or do not surrender  your Certificate, or if you annuitize at  the
end  of the applicable  time period, you  would pay the  following expenses on a
$1,000 investment, assuming a 5% annual return on assets:
 
<TABLE>
<CAPTION>
                                           1 YEAR   3 YEARS
                                           ------   -------
 <S>                                       <C>      <C>
 Capital Appreciation Series                 $        $
 Conservative Growth Series
 Emerging Growth Series                       [TO COME]
 High Yield Series
 Government Securities Series
 MFS/Foreign & Colonial International
 Growth and Income Series
 MFS/Foreign & Colonial International
 Growth Series
 MFS/Foreign & Colonial Emerging Markets
 Equity Series
 Managed Sectors Series
 Money Market Series
 Research Series
 Total Return Series
 Utilities Series
 Value Series
 World Governments Series
 World Growth Series
 World Asset Allocation Series
 World Total Return Series
</TABLE>
 
    THE EXAMPLE SHOULD  NOT BE  CONSIDERED A  REPRESENTATION OF  PAST OR  FUTURE
EXPENSES, AND ACTUAL EXPENSES MAY BE GREATER OR LOWER THAN THOSE SHOWN.
 
                                       10
<PAGE>
                                PERFORMANCE DATA
 
    From  time to time the Variable Account may publish reports to shareholders,
sales literature and advertisements containing performance data relating to  the
Sub-Accounts.  Performance data  will consist  of total  return quotations which
will always include quotations for the  period subsequent to the date each  Sub-
Account  became available for investment under the Contracts, and for recent one
year and, when applicable, five and  ten year periods. Such quotations for  such
periods  will be  the average  annual rates  of return  required for  an initial
Purchase Payment  of $1,000  to  equal the  actual variable  accumulation  value
attributable  to such  Purchase Payment  on the  last day  of the  period, after
reflection of all applicable withdrawal  and contract charges. In addition,  the
Variable  Account may  calculate non-standardized  rates of  return that  do not
reflect withdrawal and contract  charges. Results calculated without  withdrawal
and/or contract charges will be higher. Performance figures used by the Variable
Account  are based on the  actual historical performance of  the Series Fund for
specified  periods,  and  the  figures  are  not  intended  to  indicate  future
performance.  The  Variable  Account may  also  from  time to  time  compare its
investment performance to various unmanaged indices or other variable  annuities
and  may  refer  to certain  rating  and  other organizations  in  its marketing
materials. More  detailed  information  on  the computations  is  set  forth  in
Appendix D.
 
                     THIS PROSPECTUS IS A CATALOG OF FACTS
 
    This Prospectus contains information about the master group deferred annuity
contract  (the "Contract") which provides fixed benefits, variable benefits or a
combination of both.  It describes  its uses  and objectives,  its benefits  and
costs,  and  the rights  and privileges  of  the Owner  and the  Participant, as
applicable. It  also  contains  information  about  the  Company,  the  Variable
Account,  the Fixed Account and the Series  Fund. It has been carefully prepared
in non-technical language to help you decide whether the purchase of a  Contract
will fit the needs of your retirement plan. We urge you to read it carefully and
retain it for future reference. The Contract has appropriate provisions relating
to  variable  and  fixed  accumulation values  and  variable  and  fixed annuity
payments. A Variable Annuity and a Fixed Annuity have certain similarities. Both
provide that Purchase  Payments, less  certain deductions,  will be  accumulated
prior  to the  Annuity Commencement Date.  After the  Annuity Commencement Date,
annuity payments  will  be  made  to the  Annuitant.  The  Company  assumes  the
mortality  and expense risks  under the Contract, for  which it receives certain
amounts. The  significant difference  between  a Variable  Annuity and  a  Fixed
Annuity  is that under a Variable Annuity, all investment risk is assumed by the
Participant or  Payee and  the amounts  of the  annuity payments  vary with  the
investment  performance  of the  Variable Account;  under  a Fixed  Annuity, the
investment risk  is  assumed  by  the  Company (except  in  the  case  of  early
withdrawals  (See  "Cash Withdrawals"  and "Market  Value Adjustment"))  and the
amounts of the annuity payments do not vary. However, the Participant bears  the
risk  that the Guaranteed Interest  Rate to be credited  on amounts allocated to
the Fixed Account may not exceed  the minimum guaranteed rate for any  Guarantee
Period.
 
                              USES OF THE CONTRACT
 
    The  Contract is designed for use  in connection with retirement plans which
meet the requirements of  Section 401 (including  Section 401(k)), Section  403,
Section  408(b), Section 408(c) or Section  408(k) of the Internal Revenue Code;
however, the Company may discontinue  offering new Contracts in connection  with
certain  types of qualified plans. Certain  federal tax advantages are currently
available to retirement  plans which qualify  as (1) self-employed  individuals'
retirement  plans  under Section  401; (2)  corporate or  association retirement
plans under Section  401; (3) annuity  purchase plans sponsored  by certain  tax
exempt  organizations  or public  school systems  under  Section 403(b);  or (4)
individual retirement accounts, including  employer or association of  employees
individual  retirement accounts under Section  408(c) and SEP-IRAs under Section
408(k) (See "Federal Tax Status").
 
    The Contract is  also designed so  that it  may be used  in connection  with
certain  non-tax-qualified retirement plans,  such as payroll  savings plans and
such other groups (trusteed or nontrusteed) as may be eligible under  applicable
law.
 
    A   Contract  is  issued  to  the  Owner  covering  all  Participants.  Each
Participant receives  a Certificate  which evidences  his or  her  participation
under the Contract. For the purposes of determining benefits under the Contract,
a Participant's Account is established for each Participant.
 
                                       11
<PAGE>
                           A WORD ABOUT THE COMPANY,
          THE FIXED ACCOUNT, THE VARIABLE ACCOUNT AND THE SERIES FUND
 
THE COMPANY
 
    The Company is a stock life insurance company incorporated under the laws of
Delaware  on January 12, 1970.  Its Executive Office mailing  address is One Sun
Life Executive  Park,  Wellesley  Hills, Massachusetts  02181,  telephone  (617)
237-6030.  It has obtained  authorization to do  business in forty-eight states,
the District of Columbia and Puerto Rico, and it is anticipated that the Company
will be authorized to  do business in  all states except  New York. The  Company
issues  life insurance policies and individual  and group annuities. The Company
has formed a wholly-owned subsidiary, Sun Life Insurance and Annuity Company  of
New  York, which issues individual  fixed and combination fixed/variable annuity
contracts and group  life and  long-term disability  insurance in  New York  and
which  offers in  New York  contracts similar  to the  Contract offered  by this
Prospectus.  The  Company's  other  subsidiaries  are  Massachusetts   Financial
Services Company and Sun Capital Advisers, Inc., registered investment advisers,
Sun  Investment  Services  Company, a  registered  broker-dealer  and investment
adviser, Sun Benefit Services Company, Inc., which offers claims, administrative
and pension brokerage services, New London Trust, F.S.B., a federally  chartered
savings  bank, Massachusetts Casualty Insurance Company, which issues individual
disability income  policies,  and  Sun Life  Financial  Services  Limited  which
provides off-shore administrative services to the Company and Sun Life Assurance
Company of Canada.
 
    The  Company is a  wholly-owned subsidiary of Sun  Life Assurance Company of
Canada, 150  King Street  West,  Toronto, Ontario,  Canada. Sun  Life  Assurance
Company  of Canada is  a mutual life insurance  company incorporated pursuant to
Act of Parliament of Canada in 1865  and currently transacts business in all  of
the Canadian provinces and territories, all states except New York, the District
of Columbia, Puerto Rico, the Virgin Islands, Great Britain, Ireland, Hong Kong,
Bermuda and the Philippines (See "Additional Information about the Company").
 
THE FIXED ACCOUNT
 
    The  Fixed Account is  made up of all  of the general  assets of the Company
other than those allocated  to any separate account.  Purchase Payments will  be
allocated to Guarantee Periods available in connection with the Fixed Account to
the  extent elected  by the Participant  at the  time of the  establishment of a
Participant's Account or as  subsequently changed. In addition,  all or part  of
the  Participant's  Account  Value  may  be  transferred  to  Guarantee  Periods
available under the  Contract as  described under  "Transfer Privilege".  Assets
supporting  amounts allocated to Guarantee Periods  become part of the Company's
general account assets and are  available to fund the  claims of all classes  of
customers of the Company, including claims for benefits under Certificates.
 
    The  Company will  invest the  assets of the  Fixed Account  in those assets
chosen by the Company and allowed by applicable state laws regarding the  nature
and  quality of investments that may be made by life insurance companies and the
percentage of  their assets  that may  be committed  to any  particular type  of
investment.  In general, these laws  permit investments, within specified limits
and  subject  to  certain  qualifications,  in  federal,  state  and   municipal
obligations,   corporate  bonds,  preferred  and   common  stocks,  real  estate
mortgages, real estate and certain other investments.
 
    The Company intends to invest the  assets of the Fixed Account primarily  in
debt  instruments  as  follows:  (1)  Securities  issued  by  the  United States
Government or its agencies or instrumentalities, which issues may or may not  be
guaranteed  by the United  States Government; (2) Debt  securities which have an
investment grade,  at the  time  of purchase,  within  the four  highest  grades
assigned  by Moody's Investors  Services, Inc. (Aaa,  Aa, A or  Baa), Standard &
Poor's Corporation (AAA, AA, A or BBB) or any other nationally recognized rating
service; (3) Other debt instruments, including, but not limited to, issues of or
guaranteed by  banks or  bank holding  companies and  other corporations,  which
obligations,  although not rated by Moody's or  Standard & Poor's, are deemed by
the Company's management to have an investment quality comparable to  securities
which  may be purchased as stated above; and (4) Other evidences of indebtedness
secured by mortgages  or deeds  of trust  representing liens  upon real  estate.
Notwithstanding  the foregoing,  the Company  may also  invest a  portion of the
Fixed Account in below investment grade debt instruments.
 
                                       12
<PAGE>
Instruments rated Baa  and/or BBB  or lower normally  involve a  higher risk  of
default  and are less liquid than higher  rated instruments. If the rating of an
investment grade debt security held by the Company is subsequently downgraded to
below investment grade, the decision to  retain or dispose of the security  will
be made based upon an individual evaluation of the circumstances surrounding the
downgrading  and the prospects for continued deterioration, stabilization and/or
improvement.
 
    The Company  is not  obligated  to invest  amounts  allocated to  the  Fixed
Account  according  to any  particular strategy,  except as  may be  required by
applicable state  insurance  laws. Investment  income  from such  Fixed  Account
assets  will be allocated between the Company and all contracts participating in
the Fixed  Account,  including the  Contracts  offered by  this  Prospectus,  in
accordance with the terms of such contracts.
 
    Fixed  annuity payments made  to Annuitants under the  Contracts will not be
affected by  the mortality  experience (death  rate) of  persons receiving  such
payments or of the general population. The Company assumes this "mortality risk"
by  virtue of annuity rates incorporated in the Contract which cannot be changed
(except as described under "Modification" with respect to Participant's Accounts
established after the  effective date  of such modification).  In addition,  the
Company  guarantees that  it will  not increase  charges for  maintenance of the
Contracts,  regardless  of  its  actual  expenses  (except  as  described  under
"Modification"  with  respect to  Participant's  Accounts established  after the
effective date of such modification).
 
    Investment income from the Fixed  Account allocated to the Company  includes
compensation   for  mortality  and  expense  risks,  distribution  expenses  and
administrative expenses  borne  by  the Company  in  connection  with  contracts
participating  in the Fixed Account. The Company expects to derive a profit from
this compensation. The amount  of investment income  allocated to the  Contracts
will  vary from Guarantee Period  to Guarantee Period in  the sole discretion of
the Company. However, the Company guarantees  that it will credit interest at  a
rate  of not less than 3% per year, compounded annually, to amounts allocated to
the Fixed Account under the Contract. The Company may credit interest at a  rate
in  excess of the minimum rate; however,  the Company is not obligated to credit
any interest  in excess  of such  rate. There  is no  specific formula  for  the
determination  of  excess  interest  credits.  Such  credits,  if  any,  will be
determined by the company based on information as to expected investment yields.
Some of the  factors that  the Company may  consider in  determining whether  to
credit  interest  to  amounts allocated  to  the  Fixed Account  and  the amount
thereof, are: general economic trends;  rates of return currently available  and
anticipated  on the Company's investments;  regulatory and tax requirements; and
competitive factors. The Company's general investment strategy will be to invest
amounts allocated to the Fixed  Account in investment-grade debt securities  and
mortgages using immunization strategies with respect to the applicable Guarantee
Periods.  This  includes,  with  respect to  investments  and  average  terms of
investments, using dedication (cash flow  matching) and/or duration matching  to
minimize  the Company's risk  of not achieving  the rates it  is crediting under
Guarantee Periods in volatile interest rate environments. ANY INTEREST  CREDITED
TO  AMOUNTS ALLOCATED TO THE FIXED ACCOUNT IN EXCESS OF 3% WILL BE DETERMINED IN
THE SOLE  DISCRETION OF  THE  COMPANY. THE  PARTICIPANT  ASSUMES THE  RISK  THAT
INTEREST  CREDITED ON AMOUNTS ALLOCATED  TO THE FIXED ACCOUNT  MAY NOT EXCEED 3%
FOR ANY GIVEN YEAR.
 
    The Company is aware  of no statutory limitations  on the maximum amount  of
interest  it may  credit, and  the Board  of Directors  has set  no limitations.
However, inherent in the Company's exercise of discretion in this regard is  the
equitable  allocation of  distributable earnings  and surplus  among its various
policyholders and contract owners and to its sole stockholder.
 
THE VARIABLE ACCOUNT
 
    The basic objective of  a variable annuity contract  is to provide  variable
annuity  payments which  will be  to some  degree responsive  to changes  in the
economic environment,  including inflationary  forces and  changes in  rates  of
return  available from various types of investments. The Contract is designed to
seek to accomplish this  objective by providing  that variable annuity  payments
(1) will reflect the investment performance of the Variable Account with respect
to  amounts allocated  to the Variable  Account before  the Annuity Commencement
Date and (2)  will reflect the  investment performance of  the Variable  Account
after  that date. Since the Variable Account  is always fully invested in Series
Fund shares, its investment performance
 
                                       13
<PAGE>
reflects the investment performance  of the Series Fund.  Values of Series  Fund
shares  held by the Variable  Account fluctuate and are  subject to the risks of
changing economic conditions as well as the risk inherent in the ability of  the
Series  Fund's  management  to  make  necessary  changes  in  its  portfolios to
anticipate changes in economic conditions. Therefore, the Participant bears  the
entire  investment risk  that the  basic objectives of  the Contract  may not be
realized, and that  the adverse  effects of inflation  may not  be lessened  and
there can be no assurance that the aggregate amount of variable annuity payments
will equal or exceed the aggregate amount of Purchase Payments made with respect
to a particular Participant's Account for the reasons described above or because
of the premature death of a Payee.
 
    Another  important feature of the Contract related to its basic objective is
the Company's promise that the dollar  amount of variable annuity payments  made
during the lifetime of the Payee(s) will not be adversely affected by the actual
mortality  experience of the Company  or by the actual  expenses incurred by the
Company in excess of expense deductions provided for in the Contract.
 
    Sun Life of Canada  (U.S.) Variable Account F  (the "Variable Account")  was
established  by the Company as a separate account on July 13, 1989 pursuant to a
resolution of  its Board  of Directors.  Under Delaware  insurance law  and  the
Contract, the income, gains or losses of the Variable Account are credited to or
charged  against the assets of the Variable  Account without regard to the other
income, gains, or losses of  the Company. These assets  are held in relation  to
the  Contracts  described in  this Prospectus  and  such other  variable annuity
contracts issued by the Company and designated by it as providing benefits which
vary in  accordance with  the investment  performance of  the Variable  Account.
Although  the assets maintained in the Variable Account will not be charged with
any liabilities arising out of any other business conducted by the Company,  all
obligations  arising under the Contracts, including  the promise to make annuity
payments, are general corporate obligations of the Company.
 
    The Variable Account meets  the definition of a  separate account under  the
federal  securities laws and is registered as  a unit investment trust under the
Investment Company Act of  1940. Registration with  the Securities and  Exchange
Commission  does  not  involve  supervision  of  the  management  or  investment
practices or  policies  of  the  Variable  Account or  of  the  Company  by  the
Commission.
 
    The  assets  of the  Variable Account  are  divided into  Sub-Accounts. Each
Sub-Account invests exclusively  in shares of  a specific series  of the  Series
Fund.  All amounts allocated  to the Variable  Account will be  used to purchase
Series Fund shares as  designated by the Participant  at their net asset  value.
Any  and all distributions  made by the  Series Fund with  respect to the shares
held by the Variable Account will be reinvested to purchase additional shares at
their  net  asset  value.  Deductions   from  the  Variable  Account  for   cash
withdrawals,  annuity payments,  death benefits, Account  Fees, contract charges
against the assets of the Variable  Account for the assumption of mortality  and
expense risks, distribution expenses, administrative expenses and any applicable
taxes  will, in effect, be made by redeeming the number of Series Fund shares at
their net asset value  equal in total  value to the amount  to be deducted.  The
Variable Account will be fully invested in Series Fund shares at all times.
 
THE SERIES FUND
 
    MFS/Sun  Life Series  Trust (the  "Series Fund")  is an  open-end investment
management  company  registered  under  the  Investment  Company  Act  of  1940.
Currently  shares of the  Series Fund are  also sold to  other separate accounts
established by the  Company and Sun  Life Insurance and  Annuity Company of  New
York  in connection  with individual  and group  variable annuity  contracts and
variable life insurance contracts. In the future, shares of the Series Fund  may
be  sold to other separate accounts established by the Company or its affiliates
to fund other variable annuity or variable life insurance contracts. The Company
and its affiliates will be responsible for reporting to the Series Fund's  Board
of  Trustees  any  potential  or existing  conflicts  between  the  interests of
variable annuity contract  owners/participants and  the interests  of owners  of
variable  life insurance contracts that provide  for investment in shares of the
Series Fund.  The Board  of Trustees,  a majority  of whom  are not  "interested
persons"  of the Series Fund, as that  term is defined in the Investment Company
Act of 1940, also intends to monitor  the Series Fund to identify the  existence
of  any such irreconcilable material conflicts  and to determine what action, if
any, should be taken by  the Series Fund and/or  the Company and its  affiliates
(see "Management of the Series Fund" in the Series Fund prospectus).
 
                                       14
<PAGE>
    The   Series  Fund  is  composed   of  nineteen  independent  portfolios  of
securities, each  of  which has  separate  investment objectives  and  policies.
Shares  of the Series Fund are issued  in nineteen series, each corresponding to
one of the  portfolios; however, the  Contracts provide for  investment only  in
shares  of the  eighteen series of  the Series Fund  described below. Additional
portfolios may be added to the Series Fund which may or may not be available for
investment by the Variable Account.
 
    (1) MONEY MARKET  SERIES ("MMS")  will seek  maximum current  income to  the
extent  consistent with stability of principal by investing exclusively in money
market instruments maturing in  less than 13  months, including U.S.  government
securities   and  repurchase  agreements   collateralized  by  such  securities,
obligations of the larger banks and prime commercial paper.
 
    (2) HIGH YIELD  SERIES ("HYS")  will seek  high current  income and  capital
appreciation  by  investing primarily  in fixed  income  securities of  U.S. and
foreign issuers which may be in the lower rated categories or unrated  (commonly
known  as "junk bonds") and which  may include equity features. These securities
generally involve greater volatility of price  and risk to principal and  income
and  less liquidity than  securities in the higher  rated categories. Any person
contemplating allocating  Purchase  Payments  to the  Sub-Account  investing  in
shares  of the High Yield Series should review the risk disclosure in the Series
Fund prospectus carefully and consider the investment risks involved.
 
    (3) CAPITAL APPRECIATION  SERIES ("CAS") will  seek capital appreciation  by
investing in securities of all types, with a major emphasis on common stocks.
 
    (4)  GOVERNMENT  SECURITIES  SERIES  ("GSS") will  seek  current  income and
preservation of capital by investing  in U.S. Government and  Government-related
Securities.
 
    (5)  WORLD GOVERNMENTS SERIES ("WGS") will  seek moderate current income and
preservation and  growth of  capital by  investing in  a portfolio  of U.S.  and
Foreign Government Securities.
 
    (6)  TOTAL RETURN SERIES ("TRS") will seek primarily to obtain above-average
income  (compared  to  a  portfolio  entirely  invested  in  equity  securities)
consistent  with prudent  employment of capital;  its secondary  objective is to
take advantage of opportunities for growth of capital and income. Assets will be
allocated and reallocated from time to  time between money market, fixed  income
and equity securities. Under normal market conditions, at least 25% of the Total
Return  Series' assets will be invested in  fixed income securities and at least
40% and no more than 75% of its assets will be invested in equity securities.
 
    (7) MANAGED SECTORS SERIES ("MSS") will seek capital appreciation by varying
the weighting of its portfolio of common stocks among certain industry  sectors.
Dividend income, if any, is incidental to its objective of capital appreciation.
 
    (8) CONSERVATIVE GROWTH SERIES ("CGS") will seek long-term growth of capital
and  future income while providing more current dividend income than is normally
obtainable from a  portfolio of only  growth stocks by  investing a  substantial
proportion  of its  assets in the  common stocks or  securities convertible into
common stocks of companies believed to possess better than average prospects for
long-term growth and  a smaller  proportion of  its assets  in securities  whose
principal characteristic is income production.
 
    (9)  UTILITIES SERIES  ("UTS") will seek  capital growth  and current income
(income above  that  available from  a  portfolio invested  entirely  in  equity
securities)  by investing, under  normal market conditions, at  least 65% of its
assets in equity and debt securities issued by both domestic and foreign utility
companies.
 
    (10) WORLD GROWTH SERIES ("WGR") will seek capital appreciation by investing
in securities of companies worldwide growing at rates expected to be well  above
the growth rate of the overall U.S. economy.
 
    (11)  RESEARCH  SERIES  ("RES") will  seek  to provide  long-term  growth of
capital and future income.
 
    (12) WORLD ASSET ALLOCATION SERIES ("WAA")  will seek total return over  the
long  term through investments  in foreign and domestic  equity and fixed income
securities and will also seek  to have low volatility  of share price (i.e.  net
asset value per share) and reduced risk (compared to an aggressive equity/ fixed
income portfolio).
 
                                       15
<PAGE>
    (13)  WORLD TOTAL RETURN SERIES ("WTR")  will seek total return by investing
in securities which  will provide above  average current income  (compared to  a
portfolio   invested  entirely  in  equity  securities)  and  opportunities  for
long-term growth of  capital and  income. The  series will  invest primarily  in
global  equity  and fixed  income securities  (i.e. those  of U.S.  and non-U.S.
issuers).
 
    (14) EMERGING GROWTH SERIES ("EGS") will seek to provide long-term growth of
capital by investing  primarily (i.e. at  least 80% of  its assets under  normal
circumstances)  in common stocks  of emerging growth  companies, including small
and medium sized companies that are early in their life cycle but which have the
potential to  become  major  enterprises.  Dividend  and  interest  income  from
portfolio securities, if any, is incidental to its objective of long-term growth
of capital.
 
    (15),  (16) AND (17) The following three series are collectively referred to
as the "MFS/Foreign & Colonial Series."
 
    (15) MFS/FOREIGN &  COLONIAL INTERNATIONAL GROWTH  SERIES ("IGS") will  seek
capital  appreciation by investing, under normal market conditions, at least 65%
of its total assets in equity securities of companies whose principal activities
are outside the U.S. growing at rates expected to be well above the growth  rate
of the overall U.S. economy.
 
    (16)  MFS/FOREIGN & COLONIAL INTERNATIONAL  GROWTH AND INCOME SERIES ("IGI")
will seek capital  appreciation and  current income by  investing, under  normal
market  conditions, at least 65% of its  total assets in equity and fixed income
securities of issuers whose principal activities are outside the U.S.
 
    (17) MFS/FOREIGN & COLONIAL EMERGING MARKETS EQUITY SERIES ("EME") will seek
capital appreciation by investing, under normal market conditions, at least  65%
of  its total assets in equity  securities of issuers whose principal activities
are located in emerging market countries.
 
    (18) VALUE SERIES ("VAL") will seek capital appreciation.
 
    The investment adviser of the Series Fund, Massachusetts Financial  Services
Company  ("MFS"), is paid fees  by the Series Fund  for its services pursuant to
investment advisory agreements. MFS, a Delaware corporation, is a subsidiary  of
the  Company. MFS also serves as investment adviser  to each of the funds in the
MFS Family of Funds,  and to certain other  investment companies established  or
distributed by MFS and/ or the Company. MFS Asset Management, Inc., a subsidiary
of  MFS, provides investment advice to  substantial private clients. MFS and its
predecessor organizations have a history  of money management dating from  1924.
MFS  operates as  an autonomous organization  and the  obligation of performance
with respect to the investment  advisory and underwriting agreements  (including
supervision  of the sub-advisers noted below) is solely that of MFS. The Company
undertakes no obligation in this respect.
 
    The investment  advisory agreements  for  the World  Growth Series  and  the
MFS/Foreign & Colonial Series permit MFS from time to time to engage one or more
sub-advisers  to  assist in  the performance  of its  services. MFS  has engaged
Foreign &  Colonial Management  Limited ("FCM")  and its  subsidiary, Foreign  &
Colonial  Emerging Markets Limited ("FCEM"), as sub-advisers of these series and
has engaged Oechsle International Advisors, L.P. as an additional sub-adviser of
the  World  Growth  Series.  FCM   and  FCEM  replaced  Batterymarch   Financial
Management, Inc. as sub-advisers to the World Growth Series as of May 1, 1996.
 
    A  more  detailed  description  of  the  Series  Fund,  its  management, its
investment objectives, policies and restrictions  and its expenses may be  found
in  the accompanying  current prospectus  of the Series  Fund and  in the Series
Fund's Statement of Additional Information.
 
        PURCHASE PAYMENTS AND CONTRACT VALUES DURING ACCUMULATION PERIOD
 
PURCHASE PAYMENTS
 
(1) PLACE, AMOUNT AND FREQUENCY
 
    All Purchase Payments are to be paid  to the Company at its Annuity  Service
Mailing  Address. The amount of Purchase Payments may vary; however, the Company
will not accept an initial Purchase  Payment to be allocated to a  Participant's
Account   which   is   less   than  $25,000,   and   each   additional  Purchase
 
                                       16
<PAGE>
Payment must be at least $1,000 unless  waived by the Company. In addition,  the
prior  approval of  the Company  is required  before it  will accept  a Purchase
Payment which  would  cause the  value  of  a Participant's  Account  to  exceed
$1,000,000.  If  the value  of a  Participant's  Account exceeds  $1,000,000, no
additional Purchase Payments will be allocated without the prior approval of the
Company.
 
    A completed Application and  the initial Purchase  Payment are forwarded  to
the Company for acceptance. Upon acceptance, the Contract and Certificate(s), as
applicable, are issued to the Owner and/or Participant(s), respectively, and the
initial  Purchase Payment  is then  credited to  the Participant's  Account. The
initial Purchase Payment must be applied within two business days of receipt  by
the  Company of  a completed  Application. The  Company may  retain the Purchase
Payment for up to five business days while attempting to complete an  incomplete
Application.  If the  Application cannot be  made complete  within five business
days, the prospective participant will be informed of the reasons for the  delay
and  the Purchase  Payment will be  returned immediately  unless the prospective
participant specifically  consents  to  the  Company's  retaining  the  Purchase
Payment until the Application is made complete. Thereafter, the Purchase Payment
must  be  applied within  two business  days.  Subsequent Purchase  Payments are
applied at the end of the Valuation Period during which they are received by the
Company.
 
(2) ACCOUNT CONTINUATION
 
    A Participant's  Account  shall be  continued  automatically in  full  force
during  the lifetime  of the  Annuitant until  the Annuity  Commencement Date or
until the Participant's Account is surrendered. Purchase Payments may be made at
any time while the Participant's Account is in force.
 
(3) ALLOCATION OF NET PURCHASE PAYMENTS
 
    The Net Purchase Payment is that portion of a Purchase Payment which remains
after deduction of  any applicable  premium or  similar tax.  Each Net  Purchase
Payment  will be allocated  either to Guarantee  Periods available in connection
with the Fixed Account  or to Sub-Accounts  of the Variable  Account or to  both
Sub-Accounts  and the  Fixed Account in  accordance with  the allocation factors
specified in the Application, or as subsequently changed.
 
    The allocation factors for  new Payments among  the Guarantee Period(s)  and
the Sub-Accounts may be changed by the Participant at any time by giving written
notice  of the change to the Company. Any change will take effect with the first
Purchase Payment received with or after receipt  of notice of the change by  the
Company and will continue in effect until subsequently changed.
 
PARTICIPANT'S ACCOUNT
 
    The  Company  will establish  a Participant's  Account for  each Participant
under a  Contract  and  will  maintain  the  Participant's  Account  during  the
Accumulation Period. The Participant's Account Value for any Valuation Period is
equal  to the  sum of the  variable accumulation  value, if any,  plus the fixed
accumulation value,  if any,  of the  Participant's Account  for that  Valuation
Period.
 
VARIABLE ACCUMULATION VALUE
 
    The  variable accumulation value, if any, of a Participant's Account for any
Valuation Period is equal to the sum  of the value of all Variable  Accumulation
Units credited to the Participant's Account for such Valuation Period.
 
(1) CREDITING VARIABLE ACCUMULATION UNITS
 
    Upon  receipt of a Purchase Payment by  the Company, all or that portion, if
any, of  the  Net  Purchase Payment  to  be  allocated to  any  Sub-Accounts  in
accordance  with the  allocation factors will  be credited  to the Participant's
Account in the  form of Variable  Accumulation Units. The  number of  particular
Variable  Accumulation Units to be credited is determined by dividing the dollar
amount allocated to the particular Sub-Account by the Variable Accumulation Unit
value of the particular  Sub-Account for the Valuation  Period during which  the
Purchase Payment is applied by the Company to the Participant's Account.
 
(2) VARIABLE ACCUMULATION UNIT VALUE
 
    The Variable Accumulation Unit value for each Sub-Account was established at
$10.00  for  the  first  Valuation Period  of  the  particular  Sub-Account. The
Variable  Accumulation  Unit  value  for  the  particular  Sub-Account  for  any
subsequent   Valuation  Period  is  determined   by  methodology  which  is  the
mathematical
 
                                       17
<PAGE>
equivalent  of  multiplying  the  Variable  Accumulation  Unit  value  for   the
particular Sub-Account for the immediately preceding Valuation Period by the Net
Investment  Factor for the particular  Sub-Account for such subsequent Valuation
Period. The  Variable  Accumulation Unit  value  for each  Sub-Account  for  any
Valuation  Period  is the  value  determined as  of  the end  of  the particular
Valuation Period and may  increase, decrease or remain  the same from  Valuation
Period  to  Valuation  Period  in  accordance  with  the  Net  Investment Factor
described below. For a hypothetical example of the calculation of the value of a
Variable Accumulation Unit, see Appendix A.
 
(3) NET INVESTMENT FACTOR
 
    The Net Investment  Factor is  an index  applied to  measure the  investment
performance  of a  Sub-Account from  one Valuation Period  to the  next. The Net
Investment Factor may be  greater or less  than or equal  to one; therefore  the
value of a Variable Accumulation Unit may increase, decrease or remain the same.
 
    The  Net Investment Factor  for any Sub-Account for  any Valuation Period is
determined by  dividing (a)  by (b)  and then  subtracting (c)  from the  result
where:
 
        (a) is the net result of:
 
           (1)  the  net  asset  value  of  a  Series  Fund  share  held  in the
       Sub-Account determined as of the end of the Valuation Period, plus
 
           (2) the  per  share amount  of  any dividend  or  other  distribution
       declared  by the Series Fund on the shares held in the Sub-Account if the
       "ex-dividend" date occurs during the Valuation Period, plus or minus
 
           (3) a per share credit  or charge with respect  to any taxes paid  or
       reserved  for  by  the  Company during  the  Valuation  Period  which are
       determined by the  Company to  be attributable  to the  operation of  the
       Sub-Account (no federal income taxes are applicable under present law);
 
        (b)  is  the  net  asset  value  of a  Series  Fund  share  held  in the
    Sub-Account determined as of the end of the preceding Valuation Period; and
 
        (c) is  the  asset charge  factor  determined  by the  Company  for  the
    Valuation  Period  to reflect  the charges  for  assuming the  mortality and
    expense risks and administrative expense risks.
 
FIXED ACCUMULATION VALUE
 
    The fixed accumulation  value, if any,  of a Participant's  Account for  any
Valuation  Period is  equal to the  sum of  the values of  all Guarantee Amounts
credited to the Participant's Account for such Valuation Period.
 
GUARANTEE PERIODS
 
    The Participant may elect one or  more Guarantee Period(s) from among  those
made  available  by  the  Company.  The  period(s)  elected  will  determine the
Guaranteed Interest  Rate(s). A  Purchase Payment,  or the  portion thereof  (at
least  $1,000)  (or  the  amount transferred  in  accordance  with  the Transfer
Privilege) allocated  to  a particular  Guarantee  Period, less  any  applicable
premium  or  similar taxes  and any  amounts  subsequently withdrawn,  will earn
interest at the Guaranteed  Interest Rate during  the Guarantee Period.  Initial
Guarantee  Periods begin on the date the Purchase Payment is applied, or, in the
case of a transfer, on the effective date of the transfer, and end the number of
calendar months in  the Guarantee Period  elected from the  end of the  calendar
month in which the amount was allocated to the Guarantee Period (the "Expiration
Date").  Subsequent  Guarantee  Periods begin  on  the first  day  following the
Expiration Date.
 
    Any portion  of a  Participant's  Account Value  allocated to  a  particular
Guarantee  Period with a  particular Expiration Date  (including interest earned
thereon) will be referred  to herein as a  "Guarantee Amount". Interest will  be
credited  daily at a rate equivalent to the compound annual rate. As a result of
additional  Purchase  Payments,  renewals  and  transfers  of  portions  of  the
Participant's  Account Value  described under "Transfer  Privilege" below, which
will begin  new  Guarantee Periods,  Guarantee  Amounts allocated  to  Guarantee
Periods  of the  same duration  may have  different Expiration  Dates. Thus each
Guarantee Amount  will be  treated separately  for purposes  of determining  any
Market Value Adjustment (See "Market Value Adjustment").
 
                                       18
<PAGE>
    The  Company will notify the Participant in  writing at least 45 and no more
than 75 days prior to  the Expiration Date for  any Guarantee Amount except  for
Guarantee  Amounts held under a Dollar  Cost Averaging Option described below. A
new Guarantee Period of the same duration as the previous Guarantee Period  will
commence  automatically on  the first day  following the Expiration  Date of the
previous Guarantee Period unless the  Company receives, prior to the  Expiration
Date, a written election by the Participant of a new Guarantee Period from among
those being offered by the Company at such time, or instructions to transfer all
or  a portion of the Guarantee Amount  to one or more Sub-Accounts in accordance
with the Transfer  Privilege Provision.  Each new  Guarantee Amount  must be  at
least $1,000 unless it is equal to the entire Guarantee Amount being tranferred.
 
DOLLAR COST AVERAGING
 
    The  Participant may also elect an available Dollar Cost Averaging Option in
connection with selected Initial Guarantee Periods [subject to a minimum  amount
of $1,000]. Dollar Cost Averaging Options are available monthly or quarterly:
 
    1.  Monthly  Dollar Cost Averaging Option: Amounts allocated will be divided
        among 12  separate sequentially  maturing Guarantee  Periods. The  first
        Guarantee Period ends one full calendar month following the date the Net
        Purchase  Payment is applied and  each subsequent Guarantee Period shall
        end  one  full  calendar  month  later,  sequentially  thereafter.   The
        Guarantee  Amount at the  Expiration Date of  each such Guarantee Period
        will equal 1/12 of the Net  Purchase Payment applied under this  Option,
        with  the Guarantee  Amount at  the last  Expiration Date  including all
        interest earned in the 12 Guarantee Periods.
 
    2.  Quarterly Dollar Cost Averaging: Amounts allocated will be divided among
        four  separate  sequentially  maturing  Guarantee  Periods.  The   first
        Guarantee  Period ends three full calendar months following the date the
        Net Purchase Payment  is applied  and each  subsequent Guarantee  Period
        shall end three full calendar months later, sequentially thereafter. The
        Guarantee  Amount at the  Expiration Date of  each such Guarantee Period
        will equal 1/4 of  the Net Purchase Payment  applied under this  Option,
        with  the Guarantee  Amount at  the last  Expiration Date  including all
        interest earned.
 
    Only initial and subsequent Purchase Payments  may be allocated to a  Dollar
Cost  Averaging Option. Previously applied amounts may not be transferred to any
Dollar Cost Averaging Option.
 
GUARANTEED INTEREST RATES
 
    The Company periodically  will establish an  applicable Guaranteed  Interest
Rate  for  each  Guarantee Period  offered  by the  Company.  Current Guaranteed
Interest Rates  may  be  changed  by  the  Company  frequently  or  infrequently
depending  on  interest rates  available  to the  Company  and other  factors as
described below. Rates  will be guaranteed  for the duration  of the  respective
Guarantee Periods. However, Participant's Account Value withdrawn from the Fixed
Account  will be subject to any applicable withdrawal charge and Account Fee and
may be subject  to a  Market Value Adjustment  on withdrawal  or surrender  (See
"Market Value Adjustment").
 
    The  Guaranteed Interest Rate will not be  less than 3% per year, compounded
annually. The  Company has  no  specific formula  for  determining the  rate  of
interest that it will declare as a Guaranteed Interest Rate, as these rates will
be  reflective of interest rates  available on the types  of debt instruments in
which the Company intends to invest amounts allocated to the Fixed Account  (See
"The  Fixed Account"). In addition, the  Company's management may consider other
factors in determining Guaranteed Interest  Rates including: regulatory and  tax
requirements;  sales  commissions and  administrative and  distribution expenses
borne by  the Company;  general economic  trends; and  competitive factors.  The
Participant  bears the risk that the Guaranteed  Interest Rate to be credited on
amounts allocated to the Fixed Account may not exceed 3% per year.
 
TRANSFER PRIVILEGE; RESTRICTION ON MARKET TIMERS
 
    At any time during the Accumulation Period the Participant may, upon written
request received  by the  Company, transfer  all or  part of  the  Participant's
Account  Value to one or more  Sub-Accounts or Guarantee Periods available under
the Contract,  subject  to  the  following conditions:  (1)  not  more  than  12
transfers may
 
                                       19
<PAGE>
be  made in  any Account  Year; (2)  a minimum  of 30  days must  elapse between
transfers made to or from the Fixed Account or among Guarantee Periods; (3)  the
amount  being transferred from a Sub-Account may not be less than $1,000, unless
the total Participant's  Account Value  attributable to a  Sub-Account is  being
transferred;  (4) any Participant's Account Value remaining in a Sub-Account may
not be less than $1,000; (5) the total Participant's Account Value  attributable
to  the  Guarantee Amount  must be  transferred;  and (6)  transfers may  not be
allocated to the Monthly  or Quarterly Dollar  Cost Averaging Options  described
above.  In addition,  transfers of  a Guarantee  Amount will  be subject  to the
Market Value Adjustment described below unless the transfer is effective  within
30  days prior to  the Expiration Date  applicable to the  Guarantee Amount; and
transfers involving Variable Accumulation Units  shall be subject to such  terms
and  conditions as  may be imposed  by the  Series Fund. Currently,  there is no
charge for transfers; however, the Company reserves the right to impose a charge
of up to $15 for  each transfer. A transfer generally  will be effective on  the
date  the request for  transfer is received  by the Company.  Under current law,
there will not be any tax liability to the Participant if a Participant makes  a
transfer.
 
    The  Contracts are not designed for professional market timing organizations
or other entities using programmed and  frequent transfers. The Series Fund  has
reserved the right to temporarily or permanently refuse exchange requests if, in
the  judgment of the Series Fund's investment  adviser, a series would be unable
to invest effectively in accordance with its investment objective and  policies,
or  would otherwise potentially be adversely  affected. In particular, a pattern
of exchanges that coincide with a "market timing" strategy may be disruptive  to
a series and therefore may be refused. Accordingly, the Variable Account may not
be  in  a position  to  effectuate transfers  and  may refuse  transfer requests
without prior notice.  Persons who  wish to  employ such  strategies should  not
purchase a Contract.
 
        CASH WITHDRAWALS, WITHDRAWAL CHARGES AND MARKET VALUE ADJUSTMENT
 
CASH WITHDRAWALS
 
    At  any time before the Annuity Commencement Date and during the lifetime of
the Annuitant, the Participant  may elect to receive  a cash withdrawal  payment
from  the Company. Any such election shall  specify the amount of the withdrawal
and will be effective on the date that it is received by the Company.
 
    The Participant may request a full  surrender or partial withdrawal. A  full
surrender  will result in  a cash withdrawal  payment equal to  the value of the
Participant's Account  at the  end  of the  Valuation  Period during  which  the
election  becomes effective less  the Account Fee, plus  or minus any applicable
Market Value Adjustment, and  less any applicable  withdrawal charge. A  request
for  a partial withdrawal  will result in  the cancellation of  a portion of the
Participant's Account Value equal  to the dollar amount  of the cash  withdrawal
payment,  plus  or minus  any applicable  Market Value  Adjustment and  plus any
applicable withdrawal charge. If a  partial withdrawal is requested which  would
leave  a Participant's  Account Value  of less than  the Account  Fee, then such
partial withdrawal will be treated as a full surrender. The Account Fee and  any
applicable  Market  Value Adjustment  will  be deducted  from  the Participant's
Account before the application of any withdrawal charge.
 
    In the  case of  a  partial withdrawal,  the  Participant may  instruct  the
Company as to the amounts to be withdrawn from each Sub-Account and/or Guarantee
Amount.  If not so instructed, the  Company will effect such withdrawal pro-rata
from each Sub-Account and  Guarantee Amount in  which the Participant's  Account
Value is invested at the end of the Valuation Period during which the withdrawal
becomes  effective. ALL CASH  WITHDRAWALS OF ANY  GUARANTEE AMOUNT, EXCEPT THOSE
EFFECTIVE WITHIN 30 DAYS PRIOR TO THE EXPIRATION DATE OF SUCH GUARANTEE  AMOUNT,
WILL BE SUBJECT TO THE MARKET VALUE ADJUSTMENT.
 
    Cash  withdrawals  from a  Sub-Account will  result  in the  cancellation of
Variable Accumulation Units  attributable to the  Participant's Account with  an
aggregate  value on  the effective  date of  the withdrawal  equal to  the total
amount by which the Sub-Account is reduced. The cancellation of such units  will
be  based on the  Variable Accumulation Unit  values of the  Sub-Account for the
Valuation Period during which the cash withdrawal is effective.
 
                                       20
<PAGE>
    The Company, upon request, will advise  the Participant of the amounts  that
would be payable in the event of a full surrender or partial withdrawal.
 
    Any cash withdrawal payment will be paid within seven days from the date the
election becomes effective, except as the Company may be permitted to defer such
payment  in accordance  with the Investment  Company Act of  1940 and applicable
state insurance law. Deferral of amounts withdrawn from the Variable Account  is
currently  permissible only  (1) for  any period (a)  during which  the New York
Stock Exchange is closed other than  customary week-end and holiday closings  or
(b)  during  which trading  on  the New  York  Stock Exchange  is  restricted as
determined by the Securities and Exchange Commission, (2) for any period  during
which  an emergency exists as a result  of which (a) disposal of securities held
by the Series Fund  is not reasonably  practicable or (b)  it is not  reasonably
practicable  to determine the value of the net  assets of the Series Fund or (3)
for such other periods  as the Securities and  Exchange Commission may by  order
permit for the protection of security holders. The Company reserves the right to
defer  the payment of amounts withdrawn from  the Fixed Account for a period not
to exceed  six months  from the  date  written request  for such  withdrawal  is
received  by the Company. The Company is not required to pay interest on amounts
so deferred.
 
    Since the Qualified Contracts offered by  this Prospectus will be issued  in
connection  with retirement plans  which meet the  requirements of Sections 401,
403, and 408 of the Internal Revenue Code, reference should be made to the terms
of the particular retirement  plan for any limitations  or restrictions on  cash
withdrawals.  For special restrictions applicable  to withdrawals from Contracts
used with Tax-Sheltered Annuities established pursuant to Section 403(b) of  the
Internal Revenue Code, see "Section 403(b) Annuities" below.
 
    A cash withdrawal under either a Qualified or Non-Qualified Contract offered
by  this Prospectus also may result in a  tax penalty. The tax consequences of a
cash withdrawal payment under both Qualified and Non-Qualified Contracts  should
be carefully considered (See "Federal Tax Status").
 
WITHDRAWAL CHARGES
 
    No  sales charges are deducted from Purchase Payments. However, a withdrawal
charge (contingent deferred sales charge), when applicable, will be assessed  to
reimburse  the Company for certain expenses  relating to the distribution of the
Contracts, including commissions, costs of  preparation of sales literature  and
other promotional costs and acquisition expenses. Cash withdrawals may result in
a  10% tax  penalty in  addition to any  withdrawal charge  applicable under the
Contracts (See "Federal Tax Status").
 
    No withdrawal charge  is assessed  upon annuitization, upon  payment of  the
death  benefit or  upon the  transfer of  Participant's Account  Value among the
Sub-Accounts or between  the Sub-Accounts and  the Fixed Account  or within  the
Fixed Account.
 
    The  withdrawal  charge  is not  assessed  with respect  to  a Participant's
Account established for the personal account of an employee of the Company or of
any of its affiliates, or of a licensed insurance agent engaged in  distributing
the  Contracts and Certificates, and the Company may waive the withdrawal charge
with respect to  Purchase Payments derived  from the surrender  of contracts  or
certificates  issued in connection with other combination fixed/variable annuity
contracts issued by the Company.
 
    For purposes of a full surrender  or partial withdrawal, each withdrawal  is
allocated  to previously unliquidated Purchase Payments on a first-in, first-out
basis until  all  Purchase Payments  have  been liquidated.  Once  all  Purchase
Payments  have been  liquidated, any additional  withdrawals will  come from the
earnings on the Contract and are not subject to a withdrawal charge. The  amount
subject  to a withdrawal charge is the  amount of the partial withdrawal or full
surrender up to the maximum of the sum of all unliquidated Purchase Payments.
 
AMOUNT OF WITHDRAWAL CHARGE
 
    A withdrawal  charge  percentage  of  1% is  applied  to  Purchase  Payments
withdrawn  which have been credited to a Participant's Account for less than one
year (365 days).
 
    When a withdrawal is made from a Qualified Contract to comply with mandatory
minimum distribution requirements, no withdrawal  charge will be applied to  the
amount required to be distributed during each
 
                                       21
<PAGE>
Account  Year.  These required  distributions may  commence during  and continue
after the year in which the Annuitant attains age 70 1/2. Any amounts  withdrawn
in  excess of the required minimum distribution during each Account Year will be
subject to any applicable withdrawal charge.
 
    In no  event  shall the  aggregate  withdrawal charges  assessed  against  a
Participant's  Account exceed 1% of the aggregate Purchase Payments made under a
Certificate (See Appendix C for examples of withdrawals, withdrawal charges  and
the  Market Value Adjustment). The Company may, upon notice to the Owner, modify
the withdrawal  charge, provided  that  such modification  shall apply  only  to
Participant's Accounts established after the effective date of such modification
(See "Modification").
 
SECTION 403(B) ANNUITIES
 
    The  Internal  Revenue Code  imposes restrictions  on cash  withdrawals from
Contracts used with Section  403(b) Annuities. In order  for these Contracts  to
receive  tax deferred treatment, the Contract must provide that cash withdrawals
of  amounts  attributable   to  salary  reduction   contributions  (other   than
withdrawals  of accumulation  account value as  of December  31, 1988 ("Pre-1989
Account Value"))  may be  made only  when the  Participant attains  age 59  1/2,
separates  from service with the employer,  dies or becomes disabled (within the
meaning of Section 72(m)(7) of the Code). These restrictions apply to any growth
or interest  on or  after January  1,  1989 on  Pre-1989 Account  Value,  salary
reduction  contributions made  on or  after January 1,  1989, and  any growth or
interest on such contributions ("Restricted Account Value").
 
    Withdrawals of  Restricted Account  Value  are also  permitted in  cases  of
financial  hardship,  but  only  to the  extent  of  contributions;  earnings on
contributions cannot be  withdrawn for  hardship reasons.  While specific  rules
defining  hardship have not been  issued by the Internal  Revenue Service, it is
expected that to qualify for a hardship distribution, the Participant must  have
an  immediate  and  heavy bona  fide  financial  need and  lack  other resources
reasonably available  to satisfy  the  need. Hardship  withdrawals (as  well  as
certain  other premature withdrawals) will  be subject to a  10% tax penalty, in
addition to any withdrawal  charge applicable under  the Contract (See  "Federal
Tax Status").
 
    Under  the terms of a particular Section 403(b) plan, the Participant may be
entitled to transfer all or a portion of the Participant's Account Value to  one
or  more alternative funding options.  Participants should consult the documents
governing their plan and the person who administers the plan for information  as
to such investment alternatives.
 
    With respect to these restrictions on withdrawals from the Variable Account,
the  Company is relying upon a no-action letter dated November 28, 1988 from the
staff of the Securities and Exchange Commission to the American Council of  Life
Insurance, the requirements for which have been complied with by the Company.
 
    For  information on the  federal income tax withholding  rules that apply to
distributions from Qualified Contracts (including Section 403(b) Annuities)  see
"Federal Tax Status".
 
MARKET VALUE ADJUSTMENT
 
    Any cash withdrawal of a Guarantee Amount, other than a withdrawal effective
within  30 days  prior to the  Expiration Date  of the Guarantee  Amount will be
subject to  a Market  Value  Adjustment ("MVA")  (for this  purpose,  transfers,
distributions  on the death of a Participant  and amounts applied to purchase an
annuity are treated as cash withdrawals). The MVA will be applied to the  amount
being  withdrawn which is subject to the  MVA, after deduction of any applicable
Account Fee and before deduction of any applicable withdrawal charge.
 
                                       22
<PAGE>
    The  MVA will reflect the relationship  between the Current Rate (as defined
below) for the Guarantee Amount being withdrawn and the Guaranteed Interest Rate
applicable to the amount being withdrawn. It also reflects the time remaining in
the applicable Guarantee Period. Generally,  if the Guaranteed Interest Rate  is
lower  than the applicable  Current Rate, then  the application of  the MVA will
result in a lower payment upon withdrawal. Similarly, if the Guaranteed Interest
Rate is higher than the applicable Current Rate, the application of the MVA will
result in a higher payment upon withdrawal.
 
    The Market  Value  Adjustment  is  determined  by  the  application  of  the
following formula:
 
<TABLE>
 <S>                        <C>
                              N/12
                      1 + I
                    ( ----- )      -1
                      1 + J
</TABLE>
 
where,
 
    I  is the  Guaranteed Interest Rate  being credited to  the Guarantee Amount
subject to the Market Value Adjustment,
 
    J is  the  Guaranteed Interest  Rate  declared by  the  Company, as  of  the
effective  date of the  application of the Market  Value Adjustment, for current
allocations to  Guarantee  Period(s). If  the  Guarantee Period  was  originally
established through Monthly or Quarterly Dollar Cost Averaging Options, J is the
Guaranteed  Interest Rate declared for current allocations to these options. For
all other Guarantee  Periods, J  is the  Guaranteed Interest  Rate delcared  for
current  allocations to Guarantee Periods equal  to the balance of the Guarantee
Period of the Guarantee Amount subject  to the Market Value Adjustment,  rounded
to  the  next higher  number  of complete  years  (the "Current  Rate").  If the
Guarantee Period was  originally established  through the  Monthly or  Quarterly
Dollar  Cost Averaging Options,  J is the Guaranteed  Interest Rate declared for
current allocations to the Monthly and Quarterly Dollar Cost Averaging  Options.
In  the determination  of J for  Guarantee Periods other  than those established
under the Monthly  or Quarterly Dollar  Cost Averaging Options,  if the  Company
does  not  currently  offer the  applicable  Guarantee  Period, then  J  will be
determined by linear interpolation of  Current Rates for Guarantee Periods  that
are available.
 
    N  is the number of complete months remaining in the Guarantee Period of the
Guarantee Amount subject to the Market Value Adjustment.
 
    The Company  may, upon  notice to  the  Owner, modify  the formula  used  to
calculate  the Market  Value Adjustment,  provided that  such modification shall
apply only to  Participant's Accounts  established after the  effective date  of
such modification (See "Modification").
 
    See  Appendix  C  for  examples  of  the  application  of  the  Market Value
Adjustment.
 
                                 DEATH BENEFIT
 
DEATH BENEFIT PROVIDED BY THE CONTRACT
 
    In the event of the death of the Annuitant prior to the Annuity Commencement
Date, the Company will pay  a death benefit to the  Beneficiary. If there is  no
designated Beneficiary living on the date of death of the Annuitant, the Company
will,  upon  receipt  of  Due Proof  of  Death  of both  the  Annuitant  and the
designated Beneficiary, pay the death benefit in one sum to the Participant  or,
if    the   Annuitant   was   the   Participant,    to   the   estate   of   the
Participant/Annuitant. If the  death of  the Annuitant  occurs on  or after  the
Annuity  Commencement Date, no death benefit  will be payable under the Contract
except as may be provided under the Annuity Option elected.
 
ELECTION AND EFFECTIVE DATE OF ELECTION
 
    During the lifetime of the Annuitant  and prior to the Annuity  Commencement
Date,  the Participant may elect to have  the death benefit applied under one or
more Annuity  Options to  effect a  Variable Annuity  or a  Fixed Annuity  or  a
combination  of  both  for the  Beneficiary  as  Payee after  the  death  of the
Annuitant. If no election of a method of settlement of the death benefit by  the
Participant  is in effect on the date of death of the Annuitant, the Beneficiary
may elect (a) to receive the death benefit in the form of a single cash payment;
 
                                       23
<PAGE>
or (b)  to have  the death  benefit applied  under one  or more  of the  Annuity
Options  (on the  Annuity Commencement  Date described  under "Payment  of Death
Benefit") to effect a Variable  Annuity or a Fixed  Annuity or a combination  of
both  for the Beneficiary as Payee. Either  election described above may be made
by filing with the Company  a written election in such  form as the Company  may
require.  Any election  of a method  of settlement  of the death  benefit by the
Participant will become effective on the date it is received by the Company. For
the purposes  of  the Payment  of  Death Benefit  and  Amount of  Death  Benefit
sections  below, any election of the method of settement of the death benefit by
the Participant which is in effect on the date of death of the Annuitant will be
deemed effective on the date Due Proof of Death of the Annuitant is received  by
the  Company. Any election of a method of settlement of the death benefit by the
Beneficiary will become effective on the later of: (a) the date the election  is
received  by the Company; or (b) the date Due Proof of Death of the Annuitant is
received by the Company. If  an election by the  Beneficiary is not received  by
the  Company  within  60 days  following  the date  Due  Proof of  Death  of the
Annuitant is received  by the Company,  the Beneficiary will  be deemed to  have
elected a cash payment as of the last day of the 60 day period.
 
    In  all cases, no  Participant or Beneficiary shall  be entitled to exercise
any rights  that would  adversely affect  the treatment  of the  Contract as  an
annuity  contract  under  the  Internal Revenue  Code.  (See  "Other Contractual
Provisions -- Death of Participant").
 
PAYMENT OF DEATH BENEFIT
 
    If the death benefit is to be paid in cash to the Beneficiary, payment  will
be  made within  seven days  of the  date the  election becomes  effective or is
deemed to become effective, except as the Company may be permitted to defer  any
such payment of amounts derived from the Variable Account in accordance with the
Investment Company Act of 1940. If the death benefit is to be paid in one sum to
the  Participant or, if the Annuitant was  the Participant, to the estate of the
deceased Participant/Annuitant, payment will  be made within  seven days of  the
date  Due Proof of Death of the Annuitant, the Participant and/or the designated
Beneficiary, as applicable, is received by the Company. If settlement under  one
or  more of the Annuity Options is elected the Annuity Commencement Date will be
the first day of the second calendar  month following the effective date or  the
deemed  effective date  of the election,  and the Participant's  Account will be
maintained in effect until the Annuity Commencement Date.
 
AMOUNT OF DEATH BENEFIT
 
    The death benefit is determined as of the effective date or deemed effective
date of the death benefit election.
 
    If the Annuitant was  less than age  86 on the Date  of Coverage, the  death
benefit  is equal to the greatest of (1) the Participant's Account Value for the
Valuation Period during  which the  death benefit  election is  effective or  is
deemed  to become effective; (2) the amount  that would have been payable in the
event of a full  surrender of the  Participant's Account on  the date the  death
benefit  election is effective or  is deemed to become  effective; and (3) total
Purchase Payments made with respect to the Participant's Account, minus the  sum
of all partial withdrawals.
 
    If  the Annuitant was age  86 or greater on the  Date of Coverage, the death
benefit is equal to (2) above.
 
    If (2) or (3) is operative the Participant's Account Value will be increased
by the excess of (2)  or (3), as applicable, over  (1) and the increase will  be
allocated to the Sub-Accounts based on the respective values of the Sub-Accounts
on  the date the amount of the death benefit is determined. If no portion of the
Participant's Account is allocated to the Sub-Accounts, the entire increase will
be allocated  to the  Sub-Account invested  in the  Money Market  Series of  the
Series Fund.
 
                     HOW THE CONTRACT CHARGES ARE ASSESSED
 
    As  more fully described  below, charges under the  Contract offered by this
Prospectus are assessed  in three ways:  (1) as deductions  for the Account  Fee
and,  if applicable, for premium taxes; (2) as charges against the assets of the
Variable  Account  for  the  assumption  of  mortality  and  expense  risks  and
administrative  expenses;  and (3)  as  withdrawal charges  (contingent deferred
sales charges). In addition, certain
 
                                       24
<PAGE>
deductions are made from the assets of the Series Fund for investment management
fees and expenses. These  fees and expenses are  described in the Series  Fund's
Prospectus and Statement of Additional Information.
 
ADMINISTRATIVE CHARGES
 
    Prior  to the  Annuity Commencement  Date, on  each Account  Anniversary the
Company deducts from the value of  each Participant's Account an annual  account
administration  fee ("Account Fee") in the amount of $50 as partial compensation
for expenses  relating  to  the  issue and  maintenance  of  the  Contract,  the
Certificate  and  the  Participant's  Account.  If  a  Participant's  Account is
surrendered for  its full  value  on other  than  the Account  Anniversary,  the
Account  Fee will be deducted in full at the time of such surrender. The Account
Fee will  be  deducted on  a  pro rata  basis  from amounts  allocated  to  each
Guarantee  Period and  each Sub-Account  in which  the Participant's  Account is
invested at the time of such deduction. Also, the Company will waive the Account
Fee when the Participant's Account Value is greater than $100,000 on the Account
Anniversary. On the Annuity  Commencement Date, the  value of the  Participant's
Account  will be reduced by a proportionate amount of the Account Fee to reflect
the time elapsed  between the last  Account Anniversary and  the day before  the
Annuity  Commencement  Date.  After  the Annuity  Commencement  Date,  an annual
Account Fee of $50 will be deducted in equal amounts from each variable  annuity
payment  made during the year. No such deduction will be made from fixed annuity
payments.
 
    The Company makes a deduction from the  Variable Account at the end of  each
Valuation Period (during both the Accumulation Period and after annuity payments
begin)  at an effective annual rate of  0.15% to reimburse the Company for those
administrative expenses  attributable to  the Contracts,  the Certificates,  the
Participant's  Accounts  and  the  Variable Account  which  exceed  the revenues
received from  the Account  Fee. The  Company believes  that the  administrative
expense charge has been set at a level that will recover no more than the actual
costs  associated  with  administering  the Contracts  and  Certificates.  For a
description of  administrative  services  provided see  "Administration  of  the
Contracts" on Page 37 of this Prospectus.
 
    The  Contract provides that the  Company may modify the  Account Fee and the
administrative expense charge, provided that such modification shall apply  only
with  respect to Participant's Accounts established  after the effective date of
such modification (See "Modification").  The Company does not  expect to make  a
profit from the Account Fee or the administrative expense charge.
 
PREMIUM TAXES
 
    A  deduction, when applicable, is made for premium or similar state or local
taxes (See Appendix B). It is currently the policy of the Company to deduct  the
tax  from the amount applied to provide  an annuity at the time annuity payments
commence; however, the  Company reserves  the right  to deduct  such taxes  when
incurred.
 
MORTALITY AND EXPENSE RISK CHARGE
 
    The  mortality  risk  assumed by  the  Company arises  from  the contractual
obligation to continue to make annuity payments to each Annuitant regardless  of
how  long the  Annuitant lives and  regardless of  how long all  annuitants as a
group live. This  assures each annuitant  that neither the  longevity of  fellow
annuitants  nor an  improvement in  the life  expectancy generally  will have an
adverse effect on the amount of any annuity payment received under the Contract.
The Company assumes this mortality risk by virtue of annuity rates  incorporated
into  the Contract which cannot be  changed except with respect to Participant's
Accounts established after the effective date of such change, as provided in the
section of this Prospectus entitled "Modification". The expense risk assumed  by
the  Company  is the  risk that  the administrative  charges assessed  under the
Contract may be insufficient to  cover the actual total administrative  expenses
incurred by the Company.
 
    For  assuming these risks,  the Company makes a  deduction from the Variable
Account at the end of each Valuation Period during both the Accumulation  Period
and  after annuity payments begin  at an effective annual  rate of 1.00%. If the
deduction is insufficient to cover the actual cost of the mortality and  expense
risk  undertaking, the Company will bear  the loss. Conversely, if the deduction
proves more than sufficient, the excess will be profit to the Company and  would
be available for any proper corporate purpose including,
 
                                       25
<PAGE>
among  other things, payment  of distribution expenses.  The Company will recoup
its expected costs associated with registering and distributing the Contracts by
the assessment  of  the withdrawal  charge  (contingent deferred  sales  charge)
described  below. However, the withdrawal charge may prove to be insufficient to
cover actual distribution expenses. If this is the case, the deficiency will  be
met from the Company's general corporate funds which may include amounts derived
from the mortality and expense risk charges.
 
    The  Contract provides that the Company may modify the mortality and expense
risk charge;  however,  such  modification  shall apply  only  with  respect  to
Participant's Accounts established after the effective date of such modification
(See "Modification").
 
    Mortality  and expense risk charges, administrative charges and distribution
expense charges assessed under other  contracts participating in the  investment
experience  of  the Variable  Account  were the  only  expenses of  the Variable
Account for the year ended December 31, 1995.
 
WITHDRAWAL CHARGES
 
    No deduction for sales  charges is made from  Purchase Payments. However,  a
withdrawal charge (contingent deferred sales charge) of 1% of Purchase Payments,
when  applicable, will be used to cover certain expenses relating to the sale of
the Contract and  Certificates thereunder, including  commissions paid to  sales
personnel,  the costs of  preparation of sales  literature and other promotional
costs and acquisition  expenses. Gross  commissions paid  on the  sale of  these
Contracts  are not more than 1.20% of  the Purchase Payments. In addition, after
the first  Account  Year, a  trail  commission of  no  more than  1.00%  of  the
Participant's  Account Value may be paid (See "Cash Withdrawals" and "Withdrawal
Charges").
 
                               ANNUITY PROVISIONS
 
ANNUITY COMMENCEMENT DATE
 
    Annuity payments  will  begin on  the  Annuity Commencement  Date  which  is
selected  by the Participant, as specified in the Application. The date selected
by the Participant may not be sooner  than the first day of the second  calendar
month  following  the  Date  of  Coverage.  This  date  may  be  changed  by the
Participant from time to  time by written notice  to the Company, provided  that
notice  of each change is received by the  Company at least 30 days prior to the
then current Annuity Commencement Date and the new Annuity Commencement Date  is
a  date which is: (1)  at least 30 days  after the date notice  of the change is
received by the Company; (2)  the first day of a  month; and (3) not later  than
the first day of the first month following the Annuitant's 90th birthday, unless
otherwise  restricted, in  the case of  a Qualified Contract,  by the particular
retirement plan or by applicable law.  In most situations, current law  requires
that  the Annuity Commencement Date under a  Qualified Contract be no later than
April 1 following the year the Annuitant reaches  age 70 1/2 , and the terms  of
the  particular retirement plan  may impose additional  limitations. The Annuity
Commencement Date may also  be changed by  an election of  an Annuity Option  as
described in the Death Benefit section of this Prospectus.
 
    On the Annuity Commencement Date the Participant's Account will be cancelled
and  its adjusted value will be applied to  provide an annuity under one or more
of the  options described  below.  No withdrawal  charge  will be  imposed  upon
amounts applied to purchase an annuity. However, the Market Value Adjustment may
apply,  as noted under  "Determination of Amount." NO  PAYMENTS MAY BE REQUESTED
UNDER THE  CONTRACT'S  CASH  WITHDRAWAL  PROVISIONS  ON  OR  AFTER  THE  ANNUITY
COMMENCEMENT  DATE, AND NO  CASH WITHDRAWAL WILL  BE PERMITTED EXCEPT  AS MAY BE
AVAILABLE UNDER THE ANNUITY OPTION ELECTED.
 
    Since the Contracts offered by this  Prospectus may be issued in  connection
with  retirement plans which meet the requirements of Section 401, 403 or 408 of
the Internal Revenue  Code, as  well as certain  non-qualified plans,  reference
should  be  made to  the terms  of the  particular plan  for any  limitations or
restrictions on the Annuity Commencement Date.
 
ELECTION--CHANGE OF ANNUITY OPTION
 
    During the lifetime of the Annuitant  and prior to the Annuity  Commencement
Date,  the Participant may  elect one or  more of the  Annuity Options described
below,   or    such    other    settlement   option    as    may    be    agreed
 
                                       26
<PAGE>
to  by the Company, for the Annuitant  as Payee. The Participant may also change
any election, but written notice of any  election or change of election must  be
received by the Company at least 30 days prior to the Annuity Commencement Date.
If  no election is in  effect on the 30th day  prior to the Annuity Commencement
Date, Annuity Option B,  for a Life Annuity  with 120 monthly payments  certain,
will be deemed to have been elected. If there is no election of a sole Annuitant
in  effect on the  30th day prior  to the Annuity  Commencement Date, the person
designated as  "Co-Annuitant" will  be the  Payee under  the applicable  Annuity
Option.
 
    Any  election  may  specify the  proportion  of  the adjusted  value  of the
Participant's Account to be  applied to provide a  Fixed Annuity and a  Variable
Annuity.  In the event the election does not so specify, or if no election is in
effect on the 30th day prior to the Annuity Commencement Date, then the  portion
of  the adjusted value of  the Participant's Account to  be applied to provide a
Fixed Annuity and a Variable Annuity will be determined on a pro rata basis from
the composition of the Participant's Account on the Annuity Commencement Date.
 
    Annuity Options may also be elected by the Participant or the Beneficiary as
provided in the Death Benefit section of this Prospectus.
 
    Reference should be made  to the terms of  a particular retirement plan  and
any  applicable legislation for  any limitations or  restrictions on the options
which may be elected.
 
    NO CHANGE  OF ANNUITY  OPTION IS  PERMITTED AFTER  THE ANNUITY  COMMENCEMENT
DATE.
 
ANNUITY OPTIONS
 
    No  lump  sum  settlement  option  is  available  under  the  Contract.  The
Participant may surrender a Certificate prior to the Annuity Commencement  Date;
however,  any  applicable  surrender  charge  will  be  deducted  from  the cash
withdrawal payment  and  a  Market  Value Adjustment,  if  applicable,  will  be
applied.
 
    Annuity  Options  A, B,  C and  D are  available to  provide either  a Fixed
Annuity or a Variable Annuity. Annuity Option  E is available only to provide  a
Fixed Annuity.
 
    Annuity  Option A.  Life  Annuity:  Monthly payments  during the lifetime of
the Payee. This option  offers a higher level  of monthly payments than  Annuity
Options  B or C because  no further payments are payable  after the death of the
Payee and there is no provision for a death benefit payable to a Beneficiary.
 
    Annuity Option B.  Life  Annuity with 60, 120,  180 or 240 Monthly  Payments
Certain:  Monthly payments during the lifetime of the Payee and in any event for
60,  120, 180 or 240 months certain as  elected. The election of a longer period
certain results in smaller monthly payments than would be the case if a  shorter
period  certain were elected. In the event of  the death of the Payee under this
option, the  Contract  provides  that  if there  is  no  designated  beneficiary
entitled  to the  remaining payments  then living,  the discounted  value of the
remaining payments,  if any,  will be  calculated and  paid in  one sum  to  the
deceased  Payee's estate. In  addition, any beneficiary  who becomes entitled to
any remaining payments under  this option may elect  to receive the amounts  due
under this option in one sum. The discounted value for variable annuity payments
will be based on interest compounded annually at the assumed interest rate of 3%
per  year. The discounted value for payments being made on a fixed basis will be
based on the interest rate initially used by the Company to determine the amount
of each payment.
 
    Annuity Option C.   Joint and  Survivor Annuity:   Monthly payments  payable
during the joint lifetime of the Payee and a designated second person and during
the  lifetime of  the survivor.  During the  lifetime of  the survivor, variable
monthly payments, if any, will be determined using the percentage chosen at  the
time  of election  of this  option of the  number of  each type  of Annuity Unit
credited with respect to the Payee and  fixed monthly payments, if any, will  be
equal  to the same  percentage of the  fixed monthly payment  payable during the
joint lifetime of the Payee and the designated second person.
 
    *  Annuity   Option  D.      Monthly  Payments   for  a   Specified   Period
Certain:   Monthly payments for a specified  period of time (at least five years
but  not  exceeding  30  years),  as   elected.  In  the  event  of  the   death
 
- ---------
* The election of this annuity option may result in the imposition of a penalty
tax.
 
                                       27
<PAGE>
of  the Payee under this option, the  Contract provides that, as described under
Annuity Option B  above, in certain  circumstances the discounted  value of  the
remaining payments, if any, will be calculated and paid in one sum.
 
    *  Annuity Option E.   Fixed Payments:  The  amount applied to provide fixed
payments in accordance with this option will be held by the Company at interest.
Fixed payments will be made in such amounts  and at such times (at least over  a
period  of five years) as may be agreed  upon with the Company and will continue
until the  amount held  by the  Company with  interest is  exhausted. The  final
payment  will be for  the balance remaining and  may be less  than the amount of
each preceding  payment.  Interest  will  be credited  annually  on  the  amount
remaining unpaid at a rate which shall be determined by the Company from time to
time but which shall not be less than 3% per year, compounded annually. The rate
so  determined may be changed at  any time and as often  as may be determined by
the Company, provided, however, that the rate may not be reduced more frequently
than once during each calendar year.
 
DETERMINATION OF ANNUITY PAYMENTS
 
    On the Annuity Commencement Date the Participant's Account will be cancelled
and its adjusted value will be applied to provide a Variable Annuity or a  Fixed
Annuity  or  a combination  of both.  The adjusted  value will  be equal  to the
Participant's Account  Value for  the Valuation  Period which  ends  immediately
preceding  the Annuity Commencement  Date, reduced by  a proportionate amount of
the Account Fee to reflect the time elapsed between the last Account Anniversary
and the day before the Annuity  Commencement Date, plus or minus any  applicable
Market Value Adjustment and minus any applicable premium or similar taxes.
 
    If the amount to be applied under any annuity option is less than $2,000, or
if the first annuity payment payable in accordance with such option is less than
$20,  the Company will pay the  amount to be applied in  a single payment to the
Payee.
 
FIXED ANNUITY PAYMENTS
 
    The dollar  amount of  each  fixed annuity  payment  will be  determined  in
accordance  with the Annuity Payment Rates found in the Contract which are based
on a minimum guaranteed interest rate of  3% per year, or, if more favorable  to
the  Payee(s), in  accordance with  the Annuity  Payment Rates  published by the
Company and in use on the Annuity Commencement Date.
 
VARIABLE ANNUITY PAYMENTS
 
    The dollar amount of the first  variable annuity payment will be  determined
in  accordance with the  Annuity Payment Rates  found in the  Contract which are
based on an assumed interest rate of 3% per year, unless these rates are changed
(See "Modification"). All  variable annuity  payments other than  the first  are
determined  by means  of Annuity Units  credited with respect  to the particular
Payee. The number of  Annuity Units to  be credited in  respect of a  particular
Sub-Account is determined by dividing that portion of the first variable annuity
payment  attributable  to that  Sub-Account by  the Annuity  Unit value  of that
Sub-Account for  the  Valuation  Period which  ends  immediately  preceding  the
Annuity  Commencement  Date.  The number  of  Annuity Units  of  each particular
Sub-Account credited with  respect to  the particular Payee  then remains  fixed
unless  an exchange  of Annuity  Units is  made as  described below.  The dollar
amount of each variable annuity payment  after the first may increase,  decrease
or  remain  constant, and  is  equal to  the sum  of  the amounts  determined by
multiplying the number  of Annuity  Units of a  particular Sub-Account  credited
with  respect  to  the  particular  Payee by  the  Annuity  Unit  value  for the
particular Sub-Account for the Valuation Period which ends immediately preceding
the due date of  each subsequent payment.  If the net  investment return on  the
assets  of the Variable Account is the same as the assumed interest rate (3% per
year), variable annuity payments will remain level. If the net investment return
exceeds the assumed interest rate  variable annuity payments will increase  and,
conversely,  if it  is less  than the  assumed interest  rate the  payments will
decrease.
 
    For a hypothetical example of the calculation of a Variable Annuity Payment,
see Appendix A.
 
- ---------
* The election of this annuity option may result in the imposition of a penalty
tax.
 
                                       28
<PAGE>
ANNUITY UNIT VALUE
 
    The Annuity Unit value  for each Sub-Account was  established at $10.00  for
the first Valuation Period of the particular Sub-Account. The Annuity Unit Value
for the particular Sub-Account for any subsequent Valuation Period is determined
by  multiplying the  Annuity Unit value  for the particular  Sub-Account for the
immediately preceding  Valuation  Period  by  the  Net  Investment  Factor  (See
"Variable  Accumulation  Value,  Net  Investment  Factor")  for  the  particular
Sub-Account for the current Valuation  Period and then multiplying that  product
by  a factor  to neutralize  the assumed interest  rate of  3% per  year used to
establish the Annuity Payment Rates found in the applicable Contract. For a  one
day Valuation Period the factor is 0.99991902.
 
    For  a hypothetical example  of the calculation  of the value  of a Variable
Annuity Unit, see Appendix A.
 
EXCHANGE OF VARIABLE ANNUITY UNITS
 
    After the  Annuity Commencement  Date the  Payee may,  by filing  a  written
request  with the Company, exchange the value  of a designated number of Annuity
Units of particular Sub-Accounts  then credited with  respect to the  particular
Payee into other Annuity Units, the value of which would be such that the dollar
amount  of  an  annuity  payment made  on  the  date of  the  exchange  would be
unaffected by the fact of the exchange.  No more than twelve (12) exchanges  may
be made within each Account Year.
 
    Exchanges  may be made only among Sub-Accounts. Exchanges will be made using
the Annuity Unit values  for the Valuation Period  during which any request  for
exchange is received by the Company.
 
ANNUITY PAYMENT RATES
 
    The  Contract  contains  Annuity  Payment  Rates  for  each  Annuity  Option
described in  this Prospectus.  The rates  show, for  each $1,000  applied,  the
dollar  amount of: (a) the  first monthly variable annuity  payment based on the
assumed interest  rate specified  in the  Contract; and  (b) the  monthly  fixed
annuity  payment, when this payment is  based on the minimum guaranteed interest
rate of 3% per year. These rates may  be changed by the Company with respect  to
Participant's  Accounts established after the effective date of such change (See
"Modification").
 
    The annuity payment rates may vary  according to the Annuity Option  elected
and  the adjusted age  of the Payee.  The Contract also  describes the method of
determining the  adjusted  age  of  the  Payee.  The  mortality  table  used  in
determining  the  annuity payment  rates  for Options  A, B  and  C is  the 1983
Individual Annuitant Mortality Table A.
 
                          OTHER CONTRACTUAL PROVISIONS
 
PAYMENT LIMITS
 
    The initial Purchase Payment credited to each Participant's Account must  be
at  least $25,000 and each additional Purchase  Payment must be at least $1,000,
unless waived by the Company. In addition, the prior approval of the Company  is
required before it will accept a Purchase Payment which would cause the value of
a  Participant's Account to  exceed $1,000,000. If the  value of a Participant's
Account exceeds $1,000,000,  no additional  Purchase Payments  will be  accepted
without  the  prior  approval of  the  Company.  Purchase Payments  may  be made
annually, semi-annually, quarterly, monthly or at any other frequency acceptable
to the Company. The Participant may, subject to the minimum payment, increase or
decrease the amount of Purchase Payments or change the frequency of payment, but
the Participant is not obligated to continue Purchase Payments in the amount  or
frequency  elected.  There are  no  penalties for  failure  to continue  to make
Purchase Payments.  While the  Contract  and the  Participant's Account  are  in
force,  Purchase  Payments  may  be  made  at  any  time  prior  to  the Annuity
Commencement Date.
 
DESIGNATION AND CHANGE OF BENEFICIARY
 
    The beneficiary  designation contained  in the  Application will  remain  in
effect  until  changed.  The  interest  of any  Beneficiary  is  subject  to the
particular Beneficiary  surviving the  Annuitant  and, in  the  case of  a  Non-
Qualified Contract, the Participant as well.
 
    Subject  to  the  rights  of  an  irrevocably  designated  Beneficiary,  the
Participant may change or  revoke the designation of  a Beneficiary at any  time
while  the Annuitant is living by filing  with the Company a written beneficiary
designation or revocation in such form as the Company may require. The change or
revocation
 
                                       29
<PAGE>
will not be binding upon the Company  until it is received by the Company.  When
it  is so received the change or revocation  will be effective as of the date on
which the beneficiary designation  or revocation was signed,  but the change  or
revocation  will be without prejudice  to the Company on  account of any payment
made or  any action  taken  by the  Company prior  to  receiving the  change  or
revocation.
 
    Reference  should be made to  the terms of a  particular retirement plan and
any applicable legislation for any restrictions on the beneficiary designation.
 
EXERCISE OF CONTRACT RIGHTS
 
    The Contract shall belong to the  Owner. All Contract rights and  privileges
may be expressly reserved by the Owner, failing which, each Participant shall be
entitled  to  exercise  such  rights  and  privileges  in  connection  with such
Participant's Certificate.  In  any case,  such  rights and  privileges  can  be
exercised  without the  consent of  the Beneficiary  (other than  an irrevocably
designated Beneficiary) or any other person.  Such rights and privileges may  be
exercised  only during the  lifetime of the  Annuitant and prior  to the Annuity
Commencement Date, except as otherwise provided in the Contract.
 
    The Annuitant becomes the Payee on and after the Annuity Commencement  Date.
The Beneficiary becomes the Payee on the death of the Annuitant. Such Payees may
thereafter  exercise  such rights  and privileges,  if  any, of  ownership which
continue.
 
CHANGE OF OWNERSHIP
 
    Ownership of a Qualified Contract may not be transferred except to: (1)  the
Annuitant;  (2) a trustee  or successor trustee  of a pension  or profit sharing
trust which is qualified under Section 401 of the Internal Revenue Code; (3) the
employer of the Annuitant provided that the Qualified Contract after transfer is
maintained under the terms of a  retirement plan qualified under Section  403(a)
of  the Internal Revenue Code for the  benefit of the Annuitant; (4) the trustee
of an individual  retirement account  plan qualified  under Section  408 of  the
Internal  Revenue  Code  for the  benefit  of  the Owner;  or  (5)  as otherwise
permitted from time to time by laws and regulations governing the retirement  or
deferred  compensation  plans  for which  a  Qualified Contract  may  be issued.
Subject to  the foregoing,  a  Qualified Contract  may  not be  sold,  assigned,
transferred,  discounted or pledged as collateral for  a loan or as security for
the performance of an obligation  or for any other  purpose to any person  other
than the Company.
 
    The  Owner  of a  Non-Qualified  Contract may  change  the ownership  of the
Contract during the  lifetime of  any Annuitant and  prior to  the last  Annuity
Commencement  Date;  and  each  Participant,  in  like  manner,  may  change the
ownership interest in a Contract evidenced by that Participant's Certificate.  A
change  of  ownership  will  not  be  binding  upon  the  Company  until written
notification is received by the Company. When such notification is so  received,
the  change will be effective as of the date on which the request for change was
signed by  the Owner  or Participant,  as appropriate,  but the  change will  be
without  prejudice to the Company  on account of any  payment made or any action
taken by the Company prior to receiving the change.
 
DEATH OF PARTICIPANT
 
    If a Participant under a Non-Qualified Contract dies prior to the  Annuitant
and before the Annuity Commencement Date, that Participant's Account Value, plus
or  minus any  applicable Market  Value Adjustment,  must be  distributed to the
"designated beneficiary" (as defined below)  either (1) within five years  after
the  date of death of the Participant, or (2) as an annuity over some period not
greater than  the life  or expected  life of  the designated  beneficiary,  with
annuity  payments  beginning within  one year  after  the date  of death  of the
Participant. For this purpose (and for purposes of Section 72(s) of the Internal
Revenue  Code),  the  person  named  as  Beneficiary  shall  be  considered  the
designated beneficiary, and if no person then living has been so named, then the
Annuitant  shall automatically be the  designated beneficiary. If the designated
beneficiary is the surviving spouse of the deceased Participant, the spouse  can
elect  to continue the Certificate  in the spouse's own  name as Participant, in
which case these mandatory distribution requirements will apply on the  spouse's
death.
 
    When  the deceased  Participant was  also the  Annuitant, the  Death Benefit
provision of the Contract controls  unless the deceased Participant's  surviving
spouse  is the designated beneficiary and  elects to continue the Certificate in
the spouse's own name as both Participant and Annuitant.
 
                                       30
<PAGE>
    If the Payee dies on or after  the Annuity Commencement Date and before  the
entire  accumulation under such Participant's  Account has been distributed, the
remaining portion of such Participant's Account, if any, must be distributed  at
least as rapidly as the method of distribution then in effect.
 
    In  any  case in  which a  non-natural  person constitutes  a holder  of the
Certificate for the purposes of Section 72(s) of the Internal Revenue Code,  (1)
the  distribution requirements described above shall apply upon the death of any
Annuitant, and (2) a change in any Annuitant shall be treated as the death of an
Annuitant.
 
    In all cases, no  Participant or Beneficiary shall  be entitled to  exercise
any  rights that  would adversely  affect the  treatment of  the Contract  as an
annuity contract under the Internal Revenue Code.
 
    Any distributions upon the death of a Participant under a Qualified Contract
will be subject to the laws and regulations governing the particular  retirement
or  deferred compensation plan  in connection with  which the Qualified Contract
was issued.
 
VOTING OF SERIES FUND SHARES
 
    The Company  will  vote Series  Fund  shares  held by  the  Sub-Accounts  at
meetings of shareholders of the Series Fund, but will follow voting instructions
received from persons having the right to give voting instructions. The Owner or
Participant  is the person having the right to give voting instructions prior to
the Annuity Commencement  Date. On or  after the Annuity  Commencement Date  the
Payee  is the person having  such voting rights. Any  shares attributable to the
Company and  Series Fund  shares for  which no  timely voting  instructions  are
received  will be voted by the Company in  the same proportion as the shares for
which instructions are received from Owners, Participants and Payees.
 
    Owners of Qualified Contracts may be  subject to other voting provisions  of
the  particular plan and  of the Investment  Company Act of  1940. Employees who
contribute to  plans  which are  funded  by the  Contracts  may be  entitled  to
instruct  the Owners as to  how to instruct the Company  to vote the Series Fund
shares attributable  to their  contributions. Such  plans may  also provide  the
additional  extent, if any, to which the Owners shall follow voting instructions
of persons with rights under the  plans. If no voting instructions are  received
from  any such  person with respect  to a particular  Participant's Account, the
Owner may instruct  the Company  as to  how to vote  the number  of Series  Fund
shares for which instructions may be given.
 
    Neither  the Variable Account nor  the Company is under  any duty to provide
information concerning the  voting instruction  rights of persons  who may  have
such  rights under plans,  other than rights afforded  by the Investment Company
Act of 1940,  nor any duty  to inquire as  to the instructions  received or  the
authority  of Owners,  Participants or others  to instruct the  voting of Series
Fund shares. Except as the Variable Account or the Company has actual  knowledge
to  the contrary, the instructions  given by Owners and  Payees will be valid as
they affect  the Variable  Account, the  Company and  any others  having  voting
instruction rights with respect to the Variable Account.
 
    All Series Fund proxy material, together with an appropriate form to be used
to give voting instructions, will be provided to each person having the right to
give  voting  instructions  at least  ten  days  prior to  each  meeting  of the
shareholders of the Series Fund.  The number of Series  Fund shares as to  which
each  such person  is entitled  to give instructions  will be  determined by the
Company on a date not more than 90 days prior to each such meeting. Prior to the
Annuity Commencement Date, the number of  Series Fund shares as to which  voting
instructions  may be given to the Company is determined by dividing the value of
all of the Variable Accumulation Units of the particular Sub-Account credited to
the Participant's Account by the net asset value of one Series Fund share as  of
the  same date. On or after the  Annuity Commencement Date, the number of Series
Fund shares as to which such instructions may be given by a Payee is  determined
by  dividing the reserve held by the  Company in the Sub-Account with respect to
the particular Payee by  the net asset value  of a Series Fund  share as of  the
same date. After the Annuity Commencement Date, the number of Series Fund shares
as  to which  a Payee  is entitled  to give  voting instructions  will generally
decrease due to the decrease in the reserve.
 
                                       31
<PAGE>
PERIODIC REPORTS
 
    During  the Accumulation  Period the Company  will send  the Participant, or
such other person having voting rights, at least once during each Account  Year,
a statement showing the number, type and value of Accumulation Units credited to
the  Participant's Account  and the  Fixed Accumulation  Value of  such account,
which statement shall be accurate as of a date not more than two months previous
to the date  of mailing.  In addition, every  person having  voting rights  will
receive  such reports  or prospectuses concerning  the Variable  Account and the
Series Fund as may  be required by  the Investment Company Act  of 1940 and  the
Securities  Act of 1933.  The Company will also  send such statements reflecting
transactions in the Participant's Account as may be required by applicable laws,
rules and regulations.
 
    Upon request,  the Company  will provide  the Participant  with  information
regarding fixed and variable accumulation values.
 
SUBSTITUTED SECURITIES
 
    Shares  of any or all Series of the  Series Fund may not always be available
for purchase by  the Sub-Accounts  of the Variable  Account or  the Company  may
decide  that further investment in  any such shares is  no longer appropriate in
view of the purposes of the Variable Account or in view of legal, regulatory  or
federal  income tax  restrictions. In  such event,  shares of  another series or
shares of  another registered  open-end investment  company or  unit  investment
trust  may be substituted both  for Series Fund shares  already purchased by the
Variable Account and/or as the security  to be purchased in the future  provided
that    these   substitutions   meet   applicable   Internal   Revenue   Service
diversification  guidelines  and  have  been  approved,  if  required,  by   the
Securities and Exchange Commission. In the event of any substitution pursuant to
this  provision, the Company may make appropriate endorsement to the Contract to
reflect the substitution.
 
CHANGE IN OPERATION OF VARIABLE ACCOUNT
 
    At the  Company's election  and subject  to any  necessary vote  by  persons
having  the right to give instructions with respect to the voting of Series Fund
shares held  by the  Sub-Accounts, the  Variable Account  may be  operated as  a
management  company  under the  Investment  Company Act  of  1940 or  it  may be
deregistered under the Investment Company Act of 1940 in the event  registration
is  no longer required. Deregistration of the Variable Account requires an order
by the Securities and  Exchange Commission. In  the event of  any change in  the
operation  of the Variable  Account pursuant to this  provision, the Company may
make appropriate endorsement to the Contract to reflect the change and take such
other action as may be necessary and appropriate to effect the change.
 
SPLITTING UNITS
 
    The Company reserves  the right to  split or combine  the value of  Variable
Accumulation  Units, Annuity Units or any of  them. In effecting any such change
of unit  values, strict  equity will  be preserved  and no  change will  have  a
material effect on the benefits or other provisions of the Contract.
 
MODIFICATION
 
    Upon  notice to  the Owner  and Participant(s)  (or the  Payee(s) during the
annuity  period),  the  Contract  may  be  modified  by  the  Company  if   such
modification:  (i) is  necessary to  make the  Contract or  the Variable Account
comply with any law or regulation issued  by a governmental agency to which  the
Company  or the  Variable Account  is subject;  or (ii)  is necessary  to assure
continued qualification of the Contract under the Internal Revenue Code or other
federal or state laws relating to retirement annuities or annuity contracts;  or
(iii)  is necessary to reflect a change in the operation of the Variable Account
or the Sub-Account(s) (See "Change in  Operation of Variable Account"); or  (iv)
provides  additional Variable Account and/or  fixed accumulation options. In the
event of any such modification, the Company may make appropriate endorsement  to
the Contract to reflect such modification.
 
    In  addition, upon notice to  the Owner the Contract  may be modified by the
Company to change the  withdrawal charges, Account  Fees, mortality and  expense
risk charges, administrative expense charges, the tables used in determining the
amount  of the first monthly variable annuity and fixed annuity payments and the
formula used  to  calculate the  Market  Value Adjustment,  provided  that  such
modification  shall apply only  to Participant's Accounts  established after the
effective date  of such  modification.  In order  to exercise  its  modification
rights  in these particular instances, the Company must notify the Owner of such
modification in
 
                                       32
<PAGE>
writing. The notice shall specify the effective date of such modification  which
must  be  at least  60  days following  the  date of  mailing  of the  notice of
modification by the Company. All of the charges and the annuity tables which are
provided in the Contract  prior to any such  modification will remain in  effect
permanently,  unless  improved by  the  Company, with  respect  to Participant's
Accounts established prior to the effective date of such modification.
 
DISCONTINUANCE OF NEW PARTICIPANTS
 
    The Company, by giving 30 days' prior written notice to the Owner, may limit
or discontinue  the acceptance  of  new Applications  and  the issuance  of  new
Certificates  under a Contract. Such limitation  or discontinuance shall have no
effect on  rights  or  benefits  with  respect  to  any  Participant's  Accounts
established prior to the effective date of such limitation or discontinuance.
 
CUSTODIAN
 
    The  Company is  the Custodian  of the assets  of the  Variable Account. The
Company will purchase Series Fund shares  at net asset value in connection  with
amounts allocated to the Sub-Accounts in accordance with the instructions of the
Participant  and redeem Series Fund shares at net asset value for the purpose of
meeting the  contractual obligations  of the  Variable Account,  paying  charges
relative to the Variable Account or making adjustments for annuity reserves held
in the Variable Account.
 
RIGHT TO RETURN CONTRACT
 
    If  the Participant is not satisfied with the Certificate it may be returned
by mailing it to the Company at the Annuity Service Mailing Address on the cover
of this Prospectus within  ten days after it  was delivered to the  Participant.
When  the Company receives the returned Certificate it will be cancelled and the
Participant's Account Value at the end of the Valuation Period during which  the
Certificate  was received  by the Company  will be refunded  to the Participant.
However, if applicable state  law so requires, the  full amount of any  Purchase
Payment(s)  received by the Company will be refunded, the "free look" period may
be greater than ten  days and alternative methods  of returning the  Certificate
may be acceptable.
 
    With   respect  to  Individual  Retirement   Accounts,  under  the  Employee
Retirement Income Security Act of  1974 ("ERISA") a Participant establishing  an
Individual  Retirement  Account must  be furnished  with a  disclosure statement
containing  certain  information  about   the  Contract  and  applicable   legal
requirements.  This  statement  must be  furnished  on  or before  the  date the
Individual Retirement Account  is established. If  the Participant is  furnished
with  such disclosure  statement before the  seventh day preceding  the date the
Individual Retirement Account is established, the Participant will not have  any
right  of revocation. If the disclosure statement is furnished after the seventh
day preceding the establishment of  the Individual Retirement Account, then  the
Participant  may give a notice  of revocation to the  Company at any time within
seven days after the  Date of Coverage. Upon  such revocation, the Company  will
refund  the Purchase Payment(s) made by  the Participant. The foregoing right of
revocation with respect to  an Individual Retirement Account  is in addition  to
the  return privilege  set forth  in the  preceding paragraph.  The Company will
allow a participant  establishing an  Individual Retirement Account  a "ten  day
free-look," notwithstanding the provisions of ERISA.
 
                               FEDERAL TAX STATUS
 
INTRODUCTION
 
    The  Contracts  and related  Certificates described  in this  Prospectus are
designed for use by employer, association and other group retirement plans under
the provisions of Sections 401  (including Section 401(k)), 403, 408(b),  408(c)
and  408(k) of the Internal  Revenue Code (the "Code"),  as well as certain non-
qualified retirement plans, such as  payroll savings plans. The ultimate  effect
of  federal income taxes may  depend upon the type  of retirement plan for which
the Contract or Certificate is purchased and a number of different factors. This
discussion is general in  nature, is based upon  the Company's understanding  of
current federal income tax laws, and is not intended as tax advice. Congress has
the power to enact legislation affecting the tax treatment of annuity contracts,
and  such  legislation could  be  applied retroactively  to  Contracts purchased
before the  date of  enactment.  Also, because  the  Internal Revenue  Code,  as
amended,  is not in force in the Commonwealth of Puerto Rico, some references in
this discussion will not
 
                                       33
<PAGE>
apply  to  Contracts  or  Certificates   issued  in  Puerto  Rico.  Any   person
contemplating  the  purchase  of  a Contract  or  Certificate  should  consult a
qualified tax adviser. THE COMPANY DOES NOT MAKE ANY GUARANTEE REGARDING THE TAX
STATUS, FEDERAL,  STATE  OR  LOCAL,  OF  ANY  CONTRACT  OR  CERTIFICATE  OR  ANY
TRANSACTION INVOLVING THE CONTRACTS OR CERTIFICATES.
 
TAX TREATMENT OF THE COMPANY AND THE VARIABLE ACCOUNT
 
    The  Company  is taxed  as  a life  insurance  company under  the  Code. The
operations of  the Variable  Account  are accounted  for separately  from  other
operations  of  the Company  for purposes  of federal  income taxation,  but the
Variable Account is not taxable as  a regulated investment company or  otherwise
as  an entity  separate from  the Company.  The income  of the  Variable Account
(consisting primarily  of interest,  dividends  and net  capital gains)  is  not
taxable  to the Company  to the extent  that it is  applied to increase reserves
under contracts participating in the Variable Account.
 
TAXATION OF ANNUITIES IN GENERAL
 
    Purchase Payments made under Non-Qualified Contracts are not deductible from
the Participant's income  for federal  income tax  purposes. Participants  under
Qualified  Contracts should consult a tax adviser regarding the tax treatment of
Purchase Payments.
 
    Generally, no taxes are imposed on the  increase in the value of a  Contract
or Certificate until a distribution occurs, either as an annuity payment or as a
cash  withdrawal or  lump-sum payment  prior to  the Annuity  Commencement Date.
However, corporate Owners  and Participants  and other  Owners and  Participants
that  are not  natural persons  are subject  to current  taxation on  the annual
increase in the value of a Non-Qualified Contract, unless the non-natural person
holds the Contract as agent for a natural person (such as where a bank or  other
entity  holds  a Contract  as  trustee under  a  trust agreement).  This current
taxation of annuities  held by non-natural  persons does not  apply to  earnings
accumulated  under  an immediate  annuity, which  the Code  defines as  a single
premium contract with an annuity commencement  date within one year of the  date
of  purchase. Also,  the Internal  Revenue Service  could assert  that Owners or
Participants under both Qualified  and Non-Qualified Contracts annually  receive
and  are subject to tax on  a deemed distribution equal to  the cost of any life
insurance benefit provided by the Contract.
 
    The Code is unclear in its application to a group annuity contract where the
Owner is distinct from  the individuals who receive  the Contract benefits  (the
Participants).  The following discussion is  the Company's best understanding of
the operation of the Code in the context of group contracts. However, Owners and
Participants should consult a qualified tax adviser.
 
    A partial cash  withdrawal (that is,  a withdrawal of  less than the  entire
Participant's  Account Value)  from a  Certificate issued  under a Non-Qualified
Contract (a "Non-Qualified Certificate") before the Annuity Commencement Date is
treated first as  a withdrawal from  the increase in  the Participant's  Account
Value,  rather  than  as  a  return of  Purchase  Payments.  The  amount  of the
withdrawal allocable to this  increase will be  includible in the  Participant's
income  and  subject to  tax  at ordinary  income  rates. If  part  or all  of a
Participant's Account Value is assigned or pledged as collateral for a loan, the
amount assigned or  pledged must be  treated as  if it were  withdrawn from  the
Certificate.
 
    In  the case of annuity payments under a Non-Qualified Certificate after the
Annuity Commencement Date, a portion of each payment is treated as a  nontaxable
return of Purchase Payments. The nontaxable portion is determined by applying to
each  annuity payment an "exclusion ratio," which, in general, is the ratio that
the total amount the Participant paid  for the Certificate bears to the  Payee's
expected  return under the Certificate. The  remainder of the payment is taxable
at ordinary income rates.
 
    The total amount that a Payee may exclude from income through application of
the "exclusion ratio"  is limited  to the amount  the Participant  paid for  the
Certificate. If the Annuitant survives for his full life expectancy, so that the
Payee  recovers  the  entire amount  paid  for the  Certificate,  any subsequent
annuity payments will be fully taxable  as income. Conversely, if the  Annuitant
dies before the Payee recovers the entire amount paid, the Payee will be allowed
a deduction for the amount of unrecovered Purchase Payments.
 
                                       34
<PAGE>
    Taxable   cash   withdrawals  and   lump-sum  payments   from  Non-Qualified
Certificates may be subject to a penalty tax equal to 10% of the amount  treated
as  taxable income. This 10% penalty also may apply to certain annuity payments.
This penalty  will  not  apply  in certain  circumstances  (such  as  where  the
distribution  is made upon the death of the Participant). The withdrawal penalty
also does not  apply to  distributions under  an immediate  annuity (as  defined
above).
 
    In the case of a Certificate issued under a Qualified Contract (a "Qualified
Certificate"),  distributions generally are taxable and distributions made prior
to age 59 1/2 are subject to a  10% penalty tax, although this penalty tax  will
not  apply in certain  circumstances. Certain distributions,  known as "eligible
rollover distributions," if  rolled over to  certain other qualified  retirement
plans  (either directly or after being distributed to the Participant or Payee),
are not taxable until distributed from the  plan to which they are rolled  over.
In  general, an eligible rollover distribution is any taxable distribution other
than a distribution that is part of a series of payments made for life or for  a
specified  period of ten years or more. Owners, Participants, Annuitants, Payees
and Beneficiaries should  seek qualified  advice about the  tax consequences  of
distributions, withdrawals, rollovers and payments under the retirement plans in
connection with which the Certificates are purchased.
 
    If  the Participant under a Non-Qualified Certificate dies, the value of the
Certificate generally must be distributed within a specified period (See  "Other
Contractual  Provisions  --  Death  of  Participant").  For  contracts  owned by
non-natural persons, a change in  the Annuitant is treated  as the death of  the
Participant.
 
    A  purchaser of  a Qualified  Certificate should refer  to the  terms of the
applicable retirement  plan and  consult a  tax adviser  regarding  distribution
requirements upon the death of the Participant.
 
    A  transfer  of  a Non-Qualified  Certificate  by  gift (other  than  to the
Participant's spouse) is treated as the receipt by the Participant of income  in
an  amount equal to the Participant's Account  Value minus the total amount paid
for the Certificate.
 
    The Company will withhold  and remit to  the U.S. government  a part of  the
taxable  portion of each distribution made  under a Non-Qualified Certificate or
under a  Qualified Certificate  issued  for use  with an  individual  retirement
account   unless  the  Participant  or  Payee   provides  his  or  her  taxpayer
identification number to  the Company and  notifies the Company  (in the  manner
prescribed)  before the time of  the distribution that he  or she chooses not to
have any amounts withheld.
 
    In the  case  of distributions  from  a Qualified  Certificate  (other  than
distributions  from a Certificate  issued for use  with an individual retirement
account), the Company or the plan  administrator must withhold and remit to  the
U.S.   government  20%  of  each  distribution  that  is  an  eligible  rollover
distribution (as defined above) unless the Participant or Payee elects to make a
direct rollover of the distribution to another qualified retirement plan that is
eligible to receive the rollover. If a distribution from a Qualified Certificate
is not an  eligible rollover  distribution, then  the Participant  or Payee  can
choose  not  to  have  amounts withheld  as  described  above  for Non-Qualified
Certificates  and  Qualified  Certificates   issued  for  use  with   individual
retirement accounts.
 
    Amounts   withheld  from  any  distribution  may  be  credited  against  the
Participant's or  Payee's federal  income  tax liability  for  the year  of  the
distribution.
 
    The   Internal  Revenue  Service  has   issued  regulations  that  prescribe
investment  diversification  requirements  for  mutual  fund  series  underlying
nonqualified  variable  contracts.  Contracts  that  do  not  comply  with these
regulations do not  qualify as annuities  for federal income  tax purposes,  and
therefore  the annual  increase in  the value  of such  contracts is  subject to
current taxation.  The Company  believes that  each series  of the  Series  Fund
complies with the regulations.
 
    The preamble to the regulations states that the Internal Revenue Service may
promulgate  guidelines under which a variable contract will not be treated as an
annuity for tax purposes if the owner has excessive control over the investments
underlying the contract.  It is not  known whether such  guidelines, if in  fact
promulgated,  would have retroactive effect.  If guidelines are promulgated, the
Company will  take  any action  (including  modification of  the  Contract,  the
Certificate   and/or  the  Variable  Account)   necessary  to  comply  with  the
guidelines.
 
                                       35
<PAGE>
    THE FOLLOWING  INFORMATION  SHOULD  BE CONSIDERED  ONLY  WHEN  AN  IMMEDIATE
ANNUITY  CONTRACT AND  A DEFERRED ANNUITY  CONTRACT ARE  PURCHASED TOGETHER: The
Company  understands  that  the  Treasury  Department  is  in  the  process   of
reconsidering  the tax treatment of annuity  payments under an immediate annuity
contract (as defined above) purchased together with a deferred annuity contract.
The Company believes that  any adverse change in  the existing tax treatment  of
such  immediate annuity contracts is likely to be prospective, that is, it would
not apply to contracts issued before such a change is announced. However,  there
can  be no  assurance that  any such  change, if  adopted, would  not be applied
retroactively.
 
QUALIFIED RETIREMENT PLANS
 
    The Qualified Contracts described  in this Prospectus  are designed for  use
with  several types of  qualified retirement plans. The  tax rules applicable to
participants in such qualified  retirement plans vary according  to the type  of
plan  and its  terms and  conditions. Therefore,  no attempt  is made  herein to
provide more than general information about  the use of the Qualified  Contracts
with  the various types  of qualified retirement  plans. Participants under such
plans as well as Owners, Annuitants, Payees and Beneficiaries are cautioned that
the rights of any person to any benefits under these plans may be subject to the
terms and  conditions of  the  plans themselves,  regardless  of the  terms  and
conditions  of  the  Qualified  Contracts  issued  in  connection  therewith. In
addition, Owners,  Participants,  Payees, Beneficiaries  and  administrators  of
qualified  retirement  plans  should  consider  and  consult  their  tax adviser
concerning whether  the Death  Benefit payable  under the  Contract affects  the
qualified  status of their retirement plan.  Following are brief descriptions of
various types  of  qualified retirement  plans  and  the use  of  the  Qualified
Contracts in connection therewith.
 
PENSION AND PROFIT-SHARING PLANS
 
    Sections 401(a), 401(k) and 403(a) of the Code permit business employers and
certain  associations  to  establish  various  types  of  retirement  plans  for
employees. The Tax Equity and Fiscal Responsibility Act of 1982 eliminated  most
differences  between  qualified retirement  plans of  corporations and  those of
self-employed individuals. The Contract may be purchased by those who would have
been covered under the rules governing old  H.R. 10 (Keogh) Plans as well as  by
corporate  plans. Such retirement plans may permit the purchase of the Qualified
Contracts to provide benefits  under the plans. Employers  intending to use  the
Qualified  Contracts in connection with such  plans should seek qualified advice
in connection therewith.
 
TAX-SHELTERED ANNUITIES
 
    Section 403(b) of the Code permits public school employees and employees  of
certain  types of charitable, educational and scientific organizations specified
in Section 501(c) (3) of the Code to purchase annuity contracts and, subject  to
certain  limitations, exclude the amount of  purchase payments from gross income
for  tax  purposes.  These  annuity  contracts  are  commonly  referred  to   as
"Tax-Sheltered  Annuities."  Purchasers  of  the  Qualified  Contracts  for such
purposes  should  seek  qualified  advice  as  to  eligibility,  limitations  on
permissible  amounts of Purchase Payments  and tax consequences of distributions
(See "Section 403(b) Annuities").
 
INDIVIDUAL RETIREMENT ACCOUNTS
 
    Sections 219 and 408 of the  Code permit eligible individuals to  contribute
to an individual retirement program, including Simplified Employee Pension Plans
and  Employer/Association of Employees Established Individual Retirement Account
Trusts, known  as an  Individual  Retirement Account  ("IRA"). These  IRA's  are
subject  to limitations on the  amount that may be  contributed, the persons who
may be eligible, and on the  time when distributions may commence. In  addition,
certain distributions from some other types of retirement plans may be placed on
a  tax-deferred basis in an IRA. Sale of the Contracts for use with IRA's may be
subject to  special  requirements  imposed  by  the  Internal  Revenue  Service.
Purchasers  of  the  Contracts for  such  purposes  will be  provided  with such
supplementary information as may be required by the Internal Revenue Service  or
other  appropriate agency, and will have the  right to revoke the Contract under
certain circumstances as described  in the section  of this Prospectus  entitled
"Right to Return Contract."
 
                                       36
<PAGE>
                        ADMINISTRATION OF THE CONTRACTS
 
    The  Company  performs  certain  administrative  functions  relating  to the
Contracts, the Participant's Accounts, and the Variable Account. These functions
include, but  are not  limited to,  maintaining  the books  and records  of  the
Variable Account and the Sub-Accounts; maintaining records of the name, address,
taxpayer  identification number,  Contract number,  Participant's Account number
and  type,  the  status  of  each  Participant's  Account  and  other  pertinent
information  necessary  to the  administration and  operation of  the Contracts;
processing Applications,  Purchase  Payments,  transfers and  full  and  partial
surrenders;  issuing Contracts and Certificates; administering annuity payments;
furnishing accounting and  valuation services; reconciling  and depositing  cash
receipts;  providing confirmations; providing  toll-free customer service lines;
and furnishing telephonic transfer services.
 
                         DISTRIBUTION OF THE CONTRACTS
 
    The offering of the Contracts is  continuous. The Contracts will be sold  by
licensed  insurance agents in  those states where the  Contracts may be lawfully
sold.  Such  agents  will   be  registered  representatives  of   broker-dealers
registered  under the  Securities Exchange  Act of 1934  who are  members of the
National Association  of Securities  Dealers,  Inc. and  who have  entered  into
distribution  agreements with the Company and the General Distributor, Clarendon
Insurance Agency, Inc. ("Clarendon"), 500 Boylston Street, Boston, Massachusetts
02116, a wholly-owned  subsidiary of Massachusetts  Financial Services  Company,
which  in turn is a subsidiary of  the Company. Clarendon is registered with the
Securities and Exchange Commission under the Securities Exchange Act of 1934  as
broker-dealer and is a member of the National Association of Securities Dealers,
Inc.  Clarendon also  acts as the  general distributor of  certain other annuity
contracts issued  by  the Company  and  its wholly-owned  subsidiary,  Sun  Life
Insurance and Annuity Company of New York, and variable life insurance contracts
issued  by the Company. Commissions and  other distribution compensation will be
paid by the Company  and will not  be more than 1.20%  of Purchase Payments.  In
addition,  after the  first Account Year,  broker dealers who  have entered into
distribution  agreements  with  the  Company  may  receive  an  annual   renewal
commission of no more than 1.00% of the Participant's Account Value. In addition
to  commissions, the  Company may,  from time to  time, pay  or allow additional
promotional incentives,  in the  form of  cash or  other compensation.  In  some
instances,  such other incentives may be  offered only to certain broker-dealers
that sell or are expected to sell during specified time periods certain  minimum
amounts  of  the Contracts  or Certificates  or other  contracts offered  by the
Company. Commissions will  not be  paid with respect  to Participant's  Accounts
established  for the personal account of employees  of the Company or any of its
affiliates, or of persons engaged in the distribution of the Contracts.
 
                                       37
<PAGE>
                    ADDITIONAL INFORMATION ABOUT THE COMPANY
 
SELECTED FINANCIAL DATA
 
    The following selected  financial data  for the  Company should  be read  in
conjunction  with the  financial statements and  notes thereto  included in this
Prospectus beginning on page 59.
 
<TABLE>
<CAPTION>
                                                                       FOR THE YEARS ENDED DECEMBER 31
                                                         ------------------------------------------------------------
                                                            1995         1994         1993        1992        1991
                                                         -----------  -----------  ----------  ----------  ----------
                                                                                  (IN 000'S)
<S>                                                      <C>          <C>          <C>         <C>         <C>
Revenues
  Premiums, annuity deposits and other revenue           $ 1,095,646  $ 1,200,143  $1,772,745  $  908,933  $ (151,073)
  Net investment income and realized gains (losses)          366,063      334,896     243,796     209,087     162,031
                                                         -----------  -----------  ----------  ----------  ----------
                                                           1,461,709    1,535,039   2,016,541   1,118,020      10,958
                                                         -----------  -----------  ----------  ----------  ----------
Benefits and Expenses
  Policyholder benefits                                    1,238,603    1,312,721   1,786,919     921,180    (161,110)
  Other expenses                                             176,660      209,819     240,440     232,221     168,689
                                                         -----------  -----------  ----------  ----------  ----------
                                                           1,415,263    1,522,540   2,027,359   1,153,401       7,579
                                                         -----------  -----------  ----------  ----------  ----------
Operating Gain (Loss)                                         46,446       12,499     (10,818)    (35,381)      3,379
Interest on Surplus Notes                                    (31,813)     (31,150)    (26,075)    (18,000)    (12,500)
Equity in Income of Subsidiaries                              59,875       62,629      62,640      49,009      42,702
Federal Income Tax Expense                                   (38,593)     (42,521)    (22,491)     (4,000)    (13,615)
                                                         -----------  -----------  ----------  ----------  ----------
Net Income (Loss)                                        $    35,915  $     1,457  $    3,256  $   (8,372) $   19,966
                                                         -----------  -----------  ----------  ----------  ----------
                                                         -----------  -----------  ----------  ----------  ----------
Assets                                                   $12,499,683  $10,137,822  $9,199,090  $7,494,407  $6,405,599
                                                         -----------  -----------  ----------  ----------  ----------
                                                         -----------  -----------  ----------  ----------  ----------
Surplus Notes                                            $   650,000  $   335,000  $  335,000  $  265,000  $  180,000
                                                         -----------  -----------  ----------  ----------  ----------
                                                         -----------  -----------  ----------  ----------  ----------
</TABLE>
 
See Note 1 to financial statements for the effect of the reinsurance agreements
                                 on net income.
 
MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF
OPERATIONS.
 
FINANCIAL CONDITION
 
  ASSETS
 
    For management purposes it is the Company's practice to segment its  general
account  to  facilitate the  matching of  assets  and liabilities;  however, all
general account assets stand behind all general account liabilities. A  majority
of  the Company's assets are  income producing investments. Particular attention
is paid to the quality of these assets.
 
    The Company's  bond holdings  consist  of a  diversified portfolio  of  both
public and private issues. It is the Company's policy to acquire only investment
grade  securities. Private placements are rated internally with reference to the
National Association of Insurance  Commissioners ("NAIC") designation issued  by
the  NAIC Securities Valuation Office. The overall quality of the Company's bond
portfolio remains high. At December 31, 1995, 2.3% of the Company's holdings  of
bonds were rated below investment grade (i.e. below NAIC rating "1" or "2"). Net
unrealized gains on below investment grade bonds were $2,133,727 at December 31,
1995.  Bond  write  downs  resulting  from  intrinsic  impairments  amounted  to
$3,500,000 during 1995.
 
    The  Company   holds  real   estate  primarily   because  such   investments
historically  have offered  better yields over  the long-term  than fixed income
investments. Real estate investments are used  to enhance the yield of  products
with  long-term liability durations. Properties for  which market value is lower
than cost
 
                                       38
<PAGE>
adjusted for  depreciation (book  value) are  reported at  market value.  During
1995,  the change in the difference between  the market value and book value for
properties reported at market value was $3,583,000.
 
    Significant attention has  been given  to insurance  companies' exposure  to
mortgage  loans secured by real estate. The  Company had a mortgage portfolio of
$1,066,911,000 at December  31, 1995,  representing 25.3% of  cash and  invested
assets.  At  December 31,  1994, mortgage  loans represented  28.9% of  cash and
invested assets. The  Company underwrites  commercial mortgages  with a  maximum
loan  to value ratio  of 75%. The Company  as a rule  invests only in properties
that are almost  fully leased.  The portfolio is  diversified by  region and  by
property  type. The level of arrears in the portfolio is substantially below the
industry average. At December 31, 1995, 0.77% of the Company's portfolio was  60
days  or more in arrears, compared to the most recent industry delinquency ratio
published by the American Council of Life Insurance of 2.35%. The expense in the
year for the provision for losses and for losses on foreclosures was $4,133,000.
 
    In 1994, the Company entered into a leveraged lease agreement under which  a
fleet  of rail  cars was  leased for  a term  of 9.75  years. The  investment is
classified as other invested assets in the attached balance sheet.
 
    In the normal course of business, the Company makes commitments to  purchase
investments  at  a  future  date.  As  of  December  31,  1995  the  Company had
outstanding mortgage  commitments of  $13,100,000 which  will be  funded  during
1996.
 
  LIABILITIES
 
    The  majority  of the  Company's liabilities  consist  of reserves  for life
insurance and annuity contracts and deposit funds.
 
  CAPITAL AND SURPLUS
 
    Total capital stock and surplus of the Company was $792,452,000 at  December
31, 1995. The Company issued surplus notes during 1995 totalling $315,000,000 to
an  affiliate,  Sun  Canada Financial  Co.  The Company  repaid  $335,000,000 of
surplus notes  to its  parent in  1996.  During 1994,  the Company  reduced  its
carrying   value  of  MCIC,  a  wholly-owned  subsidiary,  by  $18,397,000,  the
unamortized amount of  goodwill. The  reduction was  accounted for  as a  direct
charge to surplus. The Company's management considers its surplus position to be
adequate.
 
RESULTS OF OPERATIONS
 
  1995 COMPARED TO 1994
 
    Income  from operations  before surplus note  interest, equity  in income of
subsidiaries and federal income taxes increased by $33,947,000 from  $12,499,000
in  1994 to $46,446,000 in 1995. Reinsurance  agreements with the parent had the
effect of decreasing net income by $31,327,000 in 1994 as compared to increasing
net income by $9,637,000 in 1995. The increase in net income associated with the
reinsurance agreements is due to the lack of surplus strain associated with  the
assumption  of new contracts  issued. No contracts issued  in 1994 or thereafter
have been assumed by the  Company. It is the  acquisition costs of new  contract
issues  which caused  the loss from  the reinsurance agreements  in prior years.
Prior to reinsurance, net  income from operations  decreased by $7,017,000  from
$43,826,000  in 1994 to $36,809,000 in  1995. Realized losses on investments and
amortization  of  the  interest  maintenance  reserve  decreased  by  $2,315,000
primarily  due to fewer writedowns in  the group pension product line. Operating
expenses increased  by $5,261,000  from $32,231,000  in 1994  to $37,492,000  in
1995,  reflecting  increased expenses  allocated from  the parent  and increased
salaries due to  additional staffing. The  remaining decrease in  net income  in
1995  as  compared  to  1994 of  approximately  $4,071,000  reflects  the strain
associated with the Company's market  value adjusted annuity product,  partially
offset  by profits  associated with the  maturing block of  individual and group
fixed annuities.
 
    Total income decreased by  approximately $73,330,000 from $1,535,039,000  in
1994 to $1,461,709,000 in 1995. Revenues from reinsurance transactions decreased
by  $4,307,000  reflecting the  assumed  block of  business  being closed  as of
December 31,  1993. Premiums  and annuity  considerations on  a  pre-reinsurance
basis  decreased by $7,728,000 reflecting  decreased group pension lottery sales
of $22,084,000 offset
 
                                       39
<PAGE>
by increased annuitizations of $14,356,000. Fixed annuity deposits decreased  by
$26,091,000  as interest  rates remained at  low levels. Sales  of group pension
guaranteed investment contracts increased by $49,229,000 reflecting the transfer
of the  parent's  agents' pension  fund  from the  parent  to the  Company.  Net
transfers  from the  separate accounts  decreased by  $80,758,000 reflecting the
decline in interest  rates. Pre-reinsurance net  investment income increased  by
$2,219,000 reflecting an increase in the Company's invested asset base. Realized
losses  and  amortization  of  the  interest  maintenance  reserve  decreased by
$2,315,000. Other income decreased  by $16,711,000 from  $33,377,000 in 1994  to
$16,666,000  reflecting a  decrease in  the surplus  transfer from  the separate
accounts. Mortality and expense risk charges increased by $8,616,000 as a result
of market appreciation in the separate accounts.
 
    Benefits  and  expenses   decreased  by   approximately  $107,277,000   from
$1,522,540,000  in 1994 to $1,415,263,000 in 1995. Reinsurance had the effect of
decreasing  benefits  and   expenses  by  $45,272,000,   primarily  from   lower
commissions  due to no assumption of  new contract issues. Prior to reinsurance,
benefits and expenses decreased by approximately $62,004,000. The change in  the
liability  for annuity  and other  deposit funds  increased by  $83,094,000 as a
result of fewer  maturities of contracts  for which the  guarantee periods  have
expired,  and increased sales  of group pension  guaranteed investment contracts
described above. The change in reserves decreased by $16,694,000 reflecting  the
decrease  in  group  pension  lottery  sales.  Annuity  and  other  deposit fund
withdrawals decreased by  $8,424,000 reflecting fewer  maturities. Transfers  to
the non-unitized separate account decreased by $124,285,000 from $455,688,000 in
1994 to $331,403,000 reflecting fewer sales and transfers from unitized separate
accounts  of individually marketed fixed annuities as a result of the decline in
interest rates.  Operating  expenses  increased  by  $5,261,000  reflecting  the
increased expenses described above.
 
  1994 COMPARED TO 1993
 
    Income  from operations  before surplus note  interest, equity  in income of
subsidiaries and federal income taxes was  $12,499,000 in 1994 versus a loss  of
$10,818,000  in  1993.  The  increase  in  income  is  a  result  of reinsurance
agreements  with  the   parent  which  decreased   income  from  operations   by
approximately  $31,327,000 in 1994 and $54,567,000  in 1993. The relatively flat
change in  income before  reinsurance  results from  a combination  of  factors:
realized  losses on investments  decreased by $6,237,000;  mortality and expense
risk charges increased by $9,357,000;  general expenses increased by  $8,061,000
and  approximately $6,000,000  of additional  surplus strain  (selling costs and
reserves required  on  new business  in  excess  of the  premium)  was  incurred
reflecting the increased volume of new sales.
 
    Total  revenues  decreased by  $481,502,000 from  $2,016,541,000 in  1993 to
$1,535,039,000 in  1994. Revenues  from  reinsurance transactions  decreased  by
$690,973,000,  from $959,536,000 in 1993 to  $268,563,000 in 1994. 1993 revenues
include the termination of the reinsurance agreement under which the  Registrant
reinsured  with its parent  100% of certain fixed  annuity contracts. Before the
impact of the reinsurance agreements,  total revenues increased by  $209,471,000
in   1994.  Sales  of   individually  marketed  fixed   annuities  increased  by
$389,745,000 as a result  of improved interest  rates and product  enhancements.
This  was  offset  by decreased  sales  of  group pension  deposit  contracts of
$271,913,000, reflecting  management's  decision  to  limit  sales  due  to  the
volatility  of  interest  rates  and  changes  in  the  competitive marketplace.
Realized losses on investments  decreased, reflecting fewer mortgage  writedowns
in  1994. Mortality and expense risk  charges increased, reflecting the increase
in separate account net assets.
 
    Benefits and expenses decreased by $504,819,000 from $2,027,359,000 in  1993
to $1,522,540,000 in 1994. Reinsurance had the effect of increasing benefits and
expenses by $299,890,000 in 1994 as compared to $1,014,103,000 in 1993. As noted
above,  the 1993  results include the  termination of  the reinsurance agreement
with the  parent  under which  100%  of  certain fixed  annuity  contracts  were
reinsured. Before the impact of reinsurance, benefits increased by $209,394,000.
Before  reinsurance,  the  liability for  annuity  and other  deposit  funds and
actuarial reserves decreased as a result of lower sales of group pension deposit
contracts and  increased  surrender activity.  Annuity  and other  deposit  fund
withdrawals increased as a result of increased surrenders of fixed annuities for
which   interest  rate  guarantee   periods  have  expired.   Transfers  to  the
non-unitized separate account increased reflecting the increase in fixed annuity
sales  described  above.   Prior  to  reinsurance,   commissions  increased   by
$35,497,000  reflecting increased sales of individual combination fixed/variable
annuity  contracts.  General   expenses  increased   due  to   an  increase   in
 
                                       40
<PAGE>
the  amount allocated from the parent under  the service agreement, and costs of
selling and administration associated with the increased sales and inforce block
of individually marketed  fixed/variable annuity contracts.  Federal income  tax
expense increased as net operating loss carry forwards were utilized in 1993.
 
LIQUIDITY
 
    The  Company's cash inflow  consists primarily of  premiums on insurance and
annuity products, income  from investments, repayments  of investment  principal
and  sales of investments. The Company's cash outflow is primarily to meet death
and other maturing  insurance and annuity  contract obligations, to  pay out  on
contract  terminations,  to  fund  investment  commitments  and  to  pay  normal
operating expenses and  taxes. Cash outflows  are met from  the normal net  cash
inflows.
 
    The  Company  segments its  business internally  and matches  projected cash
inflows and outflows within each segment. Targets for money market holdings  are
established  for each segment, which  in the aggregate meet  the day to day cash
needs of the Company. If greater liquidity is required, government issued bonds,
which are highly liquid, are sold to provide the necessary funds. Government and
publicly traded corporate bonds comprise  65.9% of the Company's long-term  bond
holdings.
 
    Management  believes that the  Company's sources of  liquidity are more than
adequate to meet its anticipated needs.
 
REINSURANCE
 
    The Company has agreements  with its parent company  which provide that  the
parent  company  will  reinsure  the  mortality  risks  of  the  individual life
insurance contracts  sold by  the Company.  Under these  agreements basic  death
benefits  and supplementary  benefits are reinsured  on a  yearly renewable term
basis and coinsurance basis, respectively. Reinsurance transactions under  these
agreements  in 1995 had the  effect of decreasing net  income from operations by
$2,184,000.
 
    Effective January 1,  1991 the Company  entered into an  agreement with  the
parent company under which 100% of certain fixed annuity contracts issued by the
Company  were reinsured.  This agreement  was terminated  effective December 31,
1993.
 
    Effective January 1,  1991 the Company  entered into an  agreement with  the
parent company under which certain individual life insurance contracts issued by
the  parent  were reinsured  by the  Company  on a  90% coinsurance  basis. Also
effective January 1, 1991 the Company entered into an agreement with the  parent
which  provides that the parent  will reinsure the mortality  risks in excess of
$500,000 per policy for the individual  life insurance contracts assumed by  the
Company  in  the  reinsurance  agreement  described  above.  Death  benefits are
reinsured on  a  yearly  renewable  term basis.  The  life  reinsurance  assumed
agreement  requires the reinsurer  to withhold funds  in an amount  equal to the
reserves assumed.
 
    The Company also has executed  a reinsurance agreement with an  unaffiliated
company   which  provides  reinsurance  of  certain  individual  life  insurance
contracts on  a  modified  coinsurance  basis and  under  which  all  deficiency
reserves are ceded.
 
RESERVES
 
    In  accordance with the life insurance  laws and regulations under which the
Company operates  it  is  obligated  to carry  on  its  books,  as  liabilities,
actuarially  determined  reserves to  meet  its obligations  on  its outstanding
contracts. Reserves are based on mortality  tables in general use in the  United
States  and are computed to equal amounts  that, with additions from premiums to
be received, and with interest on  such reserves compounded annually at  certain
assumed  rates, will be  sufficient to meet the  Company's policy obligations at
their maturities or  in the  event of an  insured's death.  In the  accompanying
Financial  Statements these reserves are determined in accordance with statutory
regulations which are generally accepted accounting principles for the Company.
 
INVESTMENTS
 
    Of the Company's total assets of  $12.5 billion at December 31, 1995,  58.5%
consisted  of  unitized and  non-unitized  separate account  assets,  22.8% were
invested  in  bonds  and  similar   securities,  8.5%  in  mortgages,  1.1%   in
subsidiaries,  0.7% in  real estate,  and the remaining  8.4% in  cash and other
assets.
 
                                       41
<PAGE>
COMPETITION
 
    The Company is engaged in a  business that is highly competitive because  of
the large number of stock and mutual life insurance companies and other entities
marketing  insurance products. There  are approximately 1,750  stock, mutual and
other types of  insurers in the  life insurance business  in the United  States.
According  to the most recent Best's Review, Life-Health Edition, as of December
31, 1994  the Company  ranked 46th  among all  life insurance  companies in  the
United  States based upon  total assets. Its parent  company, Sun Life Assurance
Company of Canada, ranked 19th.  Best's Insurance Reports, Life-Health  Edition,
1995,  assigned the Company  and the parent  company its highest classification,
A++, as of December 31, 1994. Standard & Poor's and Duff & Phelps have  assigned
the  Company  and the  parent company  their highest  ratings for  claims paying
ability, AAA.  These  ratings  should  not  be  considered  as  bearing  on  the
investment performance of the Series Fund shares held in the Sub-Accounts of the
Variable  Account. However, the ratings are relevant to the Company's ability to
meet its general corporate obligations under the Contracts.
 
EMPLOYEES
 
    The Company and  Sun Life Assurance  Company of Canada  have entered into  a
Service  Agreement which provides  that the latter will  furnish the Company, as
required, with personnel as  well as certain services  and facilities on a  cost
reimbursement  basis.  As  of  December  31, 1995  the  Company  had  255 direct
employees who are employed at its Principal Executive Office in Wellesley Hills,
Massachusetts and its Annuity Service Center in Boston, Massachusetts.
 
PROPERTIES
 
    The Company occupies office space owned by it and leased to its parent,  Sun
Life  Assurance Company of Canada, and certain unrelated parties for lease terms
not exceeding five years.
 
                 THE COMPANY'S DIRECTORS AND EXECUTIVE OFFICERS
 
    The directors  and  principal officers  of  the Company  are  listed  below,
together  with information  as to  their ages,  dates of  election and principal
business occupations during  the last five  years (if other  than their  present
business occupations). Except as otherwise indicated, the directors and officers
of  the Company  who are  associated with Sun  Life Assurance  Company of Canada
and/or its subsidiaries have been associated with Sun Life Assurance Company  of
Canada  for  more than  five  years either  in the  position  shown or  in other
positions.
 
JOHN D. MCNEIL, 62, Chairman and Director (1982*)
150 King Street West
Toronto, Ontario, Canada M5H 1J9
 
    He is Chairman and a  Director of Sun Life  Assurance Company of Canada  and
Sun  Life Insurance and Annuity Company of New York; a Director of Massachusetts
Financial Services  Company; President  and a  Director of  Sun Growth  Variable
Annuity  Fund,  Inc.;  Chairman and  a  Trustee  of MFS/Sun  Life  Series Trust;
Chairman and  a  Member of  the  Boards of  Managers  of Money  Market  Variable
Account,  High Yield  Variable Account,  Capital Appreciation  Variable Account,
Government Securities  Variable  Account, World  Governments  Variable  Account,
Total  Return  Variable  Account and  Managed  Sectors Variable  Account;  and a
Director of Shell (Canada) Limited and Canadian Pacific, Ltd.
 
JOHN R. GARDNER, 58, President and Director (1986*)
150 King Street West
Toronto, Ontario, Canada M5H 1J9
 
    He is President and a Director of Sun Life Assurance Company of Canada,  and
Sun  Life  Insurance  and  Annuity  Company  of  New  York;  and  a  Director of
Massachusetts  Financial  Services  Company,  Massachusetts  Casualty  Insurance
Company and Sun Life Financial Services Limited.
 
- ---------
* Year Elected Director
 
                                       42
<PAGE>
DAVID D. HORN, 54, Senior Vice President and General Manager and Director (1970,
1985*)
One Sun Life Executive Park
Wellesley Hills, Massachusetts 02181
 
    He is Senior Vice President and General Manager for the United States of Sun
Life  Assurance Company of Canada; Chairman and  President and a Director of Sun
Investment Services Company; Senior  Vice President and a  Director of Sun  Life
Insurance  and Annuity Company of New York; Vice President and a Director of Sun
Growth Variable Annuity  Fund, Inc.;  President and  a Director  of Sun  Benefit
Services  Company,  Inc.,  Sun  Canada Financial  Co.,  and  Sun  Life Financial
Services Limited;  a Director  of Sun  Capital Advisers,  Inc.; Chairman  and  a
Director of Massachusetts Casualty Insurance Company; a Trustee of MFS/ Sun Life
Series  Trust; and a Member  of the Boards of  Managers of Money Market Variable
Account, High  Yield Variable  Account, Capital  Appreciation Variable  Account,
Government  Securities  Variable  Account, World  Governments  Variable Account,
Total Return Variable Account and Managed Sectors Variable Account.
 
ANGUS A. MACNAUGHTON, 64, Director (1985*)
Metro Tower, Suite 1170,
950 Tower Lane
Foster City, California 94404
 
    He is President of Genstar Investment Corporation and a Director of Sun Life
Assurance Company of Canada, Sun Life Insurance and Annuity Company of New York,
Canadian Pacific, Ltd., Stelco, Inc. and Varian Associates, Inc.
 
JOHN S. LANE, 61, Director (1991*)
150 King Street West
Toronto, Ontario, Canada M5H 1J9
 
    He is Senior Vice  President, Investments of Sun  Life Assurance Company  of
Canada; and a Director of Sun Investment Services Company, Sun Capital Advisers,
Inc. and Sun Life Insurance and Annuity Company of New York.
 
RICHARD B. BAILEY, 69, Director (1983*)
500 Boylston Street
Boston, Massachusetts 02116
 
    He is a Director of Sun Life Insurance and Annuity Company of New York and a
Director/Trustee  of certain Funds in the MFS  Family of Funds. Prior to October
1, 1991, he  was Chairman  and a  Director of  Massachusetts Financial  Services
Company.
 
A. KEITH BRODKIN, 60, Director (1990*)
500 Boylston Street
Boston, Massachusetts 02116
 
    He is Chairman and a Director of Massachusetts Financial Services Company; a
Director  of  Sun  Life  Insurance  and  Annuity  Company  of  New  York;  and a
Director/Trustee and/or Officer of the Funds in the MFS Family of Funds.
 
M. COLYER CRUM, 63, Director (1986*)
Harvard Business School
Soldiers Field Road
Boston, Massachusetts 02163
 
    He is a Professor at the Harvard Business School; and a Director of Sun Life
Assurance Company of Canada, Sun Life Insurance and Annuity Company of New York,
Merrill Lynch Ready Assets Trust, Merrill Lynch Basic Value Fund, Inc.,  Merrill
Lynch  Special Value Fund, Inc., Merrill Lynch Capital Fund, Inc., Merrill Lynch
U.S.A. Government Reserves, Merrill Lynch Natural Resources Trust, Merrill Lynch
U.S. Treasury
 
- ---------
* Year Elected Director
 
                                       43
<PAGE>
Money Fund, MuniVest California Insured Fund, Inc., MuniVest Florida Fund, Inc.,
MuniVest Michigan Insured Fund, Inc.,  MuniVest New Jersey Fund, Inc.,  MuniVest
New  York Insured Fund, Inc., MuniYield  Florida Insured Fund, MuniYield Insured
Fund II,  Inc., MuniYield  Michigan  Insured Fund,  Inc., MuniYield  New  Jersey
Insured  Fund, Inc.,  MuniYield New  York Insured  Fund III,  Inc. and MuniYield
Pennsylvania Fund.
 
ROBERT A. BONNER, 51, Vice President, Pensions (1986)
One Sun Life Executive Park
Wellesley Hills, Massachusetts 02181
 
    He is Vice President, Pensions for  the United States of Sun Life  Assurance
Company of Canada.
 
ROBERT E. MCGINNESS, 54, Vice President and Counsel (1983)
One Sun Life Executive Park
Wellesley Hills, Massachusetts 02181
 
    He is Vice President and Counsel for the United States of Sun Life Assurance
Company  of Canada; Vice President and Counsel  and a Director of Sun Investment
Services Company and Sun Benefit Services Company, Inc.; Assistant Secretary and
a Director of New London Trust, F.S.B.; and a Director of Massachusetts Casualty
Insurance Company.
 
C. JAMES PRIEUR, 45, Vice President, Investments (1993)
One Sun Life Executive Park
Wellesley Hills, Massachusetts 02181
 
    He is  Vice  President,  Investments  for the  United  States  of  Sun  Life
Assurance  Company  of Canada;  Vice  President, Investments  of  Sun Investment
Services Company and Sun Life Insurance and  Annuity Company of New York; and  a
Director  of Sun Capital Advisers, Inc., New London Trust, F.S.B. and Sun Canada
Financial Co.
 
S. CAESAR RABOY, 59, Vice President, Individual Insurance (1991)
One Sun Life Executive Park
Wellesley Hills, Massachusetts 02181
 
    He is Vice President, Individual Insurance for the United States of Sun Life
Assurance Company of Canada;  Vice President of Sun  Life Insurance and  Annuity
Company  of New York;  and Vice President  and a Director  of Sun Life Financial
Services Limited. Prior to 1990 he was President and Chief Operating Officer  of
Connecticut Mutual Life Insurance Company.
 
ROBERT P. VROLYK, 43, Vice President and Actuary (1986)
One Sun Life Executive Park
Wellesley Hills, Massachusetts 02181
 
    He  is Vice President, Finance  for the United States  of Sun Life Assurance
Company of Canada; Vice President, Controller and Actuary of Sun Life  Insurance
and  Annuity Company of New York; a Director of Massachusetts Casualty Insurance
Company; and Vice President and a Director of Sun Canada Financial Co.
 
                                       44
<PAGE>
BONNIE S. ANGUS, 54, Secretary (1974)
One Sun Life Executive Park
Wellesley Hills, Massachusetts 02181
 
    She is  Assistant Secretary  for the  United States  of Sun  Life  Assurance
Company of Canada; and Secretary of Sun Investment Services Company, Sun Benefit
Services  Company, Inc., MFS/Sun Life Series  Trust, Sun Growth Variable Annuity
Fund, Inc., Money Market Variable Account, High Yield Variable Account,  Capital
Appreciation  Variable  Account, Government  Securities Variable  Account, World
Governments Variable  Account, Total  Return Variable  Account, Managed  Sectors
Variable  Account,  Sun Life  Insurance  and Annuity  Company  of New  York, Sun
Capital Advisers, Inc., New  London Trust, F.S.B.,  Sun Life Financial  Services
Limited and Sun Canada Financial Co.
 
L. BROCK THOMSON, 54, Vice President and Treasurer (1974)
One Sun Life Executive Park
Wellesley Hills, Massachusetts 02181
 
    He is Vice President, Portfolio Management for the United States of Sun Life
Assurance  Company of  Canada; Vice  President and  Treasurer of  Sun Investment
Services Company, Sun Capital Advisers, Inc., Sun Benefit Services Company, Inc.
and Sun Life Insurance and Annuity Company of New York; and Assistant  Treasurer
of Massachusetts Casualty Insurance Company.
 
    The  directors, officers  and employees of  the Company are  covered under a
commercial blanket  bond and  a liability  policy. The  directors, officers  and
employees  of Massachusetts  Financial Services Company  and Clarendon Insurance
Agency, Inc. are covered under a fidelity bond and errors and omissions policy.
 
EXECUTIVE COMPENSATION
 
    All of the executive officers of the  Company also serve as officers of  Sun
Life  Assurance Company of Canada and  receive no compensation directly from the
Company. Allocations have been made as to such officers' time devoted to  duties
as  executive officers of  the Company and its  subsidiaries. The allocated cash
compensation of all executive  officers of the Company  as a group for  services
rendered  in  all capacities  to the  Company and  its subsidiaries  during 1995
totalled $812,410.
 
    Directors of the Company who are also officers of Sun Life Assurance Company
of Canada  or  its affiliates  receive  no  compensation in  addition  to  their
compensation  as  officers  of  Sun  Life Assurance  Company  of  Canada  or its
affiliates. Messrs. Crum and MacNaughton  receive compensation in the amount  of
$5,000 per year, plus $800 for each meeting attended, plus expenses.
 
    No shares of the Company are owned by any executive officer or director. The
Company  is a wholly-owned  subsidiary of Sun Life  Assurance Company of Canada,
150 King Street West, Toronto, Ontario, Canada M5H 1J9.
 
                                STATE REGULATION
 
    The Company is subject to the laws  of the State of Delaware governing  life
insurance  companies  and  to regulation  by  the Commissioner  of  Insurance of
Delaware. An annual statement is filed with the Commissioner of Insurance on  or
before  March 1st in each year relating to the operations of the Company for the
preceding year and its  financial condition on December  31st of such year.  Its
books  and records are subject  to review or examination  by the Commissioner or
his agents at any time and a full examination of its operations is conducted  at
periodic intervals.
 
                                       45
<PAGE>
    The  Company is also  subject to the  insurance laws and  regulations of the
other states and jurisdictions in which it  is licensed to operate. The laws  of
the   various   jurisdictions   establish   supervisory   agencies   with  broad
administrative powers with respect to licensing to transact business, overseeing
trade practices, licensing agents, approving policy forms, establishing  reserve
requirements,  fixing maximum interest rates on  life insurance policy loans and
minimum rates for  accumulation of  surrender values, prescribing  the form  and
content  of required financial statements and regulating the type and amounts of
investments permitted.  Each  insurance company  is  required to  file  detailed
annual  reports with supervisory agencies in  each of the jurisdictions in which
it does business and its operations  and accounts are subject to examination  by
such agencies at regular intervals.
 
    In addition, many states regulate affiliated groups of insurers, such as the
Company,  its  parent  and  its  affiliates,  under  insurance  holding  company
legislation. Under such  laws, inter-company  transfers of  assets and  dividend
payments from insurance subsidiaries may be subject to prior notice or approval,
depending  on  the  size of  such  transfers  and payments  in  relation  to the
financial positions of the companies involved.
 
    Under insurance guaranty fund laws  in most states, insurers doing  business
therein  can  be  assessed (up  to  prescribed limits)  for  policyholder losses
incurred by insolvent  companies. The amount  of any future  assessments of  the
Company  under these laws cannot be reasonably estimated. However, most of these
laws do  provide that  an assessment  may be  excused or  deferred if  it  would
threaten  an insurer's own  financial strength and many  permit the deduction of
all or a portion of any such assessment from any future premium or similar taxes
payable.
 
    Although the federal  government generally  does not  directly regulate  the
business  of insurance, federal initiatives often have an impact on the business
in  a  variety  of  ways.  Current  and  proposed  federal  measures  which  may
significantly affect the insurance business include employee benefit regulation,
removal  of barriers preventing  banks from engaging  in the insurance business,
tax law changes affecting the taxation of insurance companies, the tax treatment
of insurance products  and its impact  on the relative  desirability of  various
personal  investment vehicles, and  proposed legislation to  prohibit the use of
gender in determining insurance and pension rates and benefits.
 
                               LEGAL PROCEEDINGS
 
    There are no pending legal  proceedings affecting the Variable Account.  The
Company  and its subsidiaries are engaged in various kinds of routine litigation
which, in  management's  judgment,  is  not  of  material  importance  to  their
respective total assets or material with respect to the Variable Account.
 
                                 LEGAL MATTERS
 
    The  organization of the  Company, its authority to  issue the Contracts and
the validity of  the form of  the Contracts have  been passed upon  by David  D.
Horn,  Esq., Senior Vice President and General Manager of the Company. Covington
& Burling, Washington, D.C.,  has advised the Company  on certain legal  matters
concerning  federal  securities laws  applicable to  the issue  and sale  of the
Contracts and federal income tax laws applicable to the Contracts.
 
                                  ACCOUNTANTS
 
    The financial statements of the Variable Account for the year ended December
31, 1995  and  the financial  statements  of the  Company  for the  years  ended
December  31, 1995, 1994 and 1993 included  in this Prospectus have been audited
by Deloitte  & Touche  LLP, independent  auditors, as  stated in  their  reports
appearing  herein, and are  included in reliance  upon the reports  of such firm
given upon their authority as experts in accounting and auditing.
 
                            REGISTRATION STATEMENTS
 
    Registration statements have  been filed  with the  Securities and  Exchange
Commission,  Washington, D.C., under the Securities Act of 1933 as amended, with
respect to the Contracts  offered by this Prospectus.  This Prospectus does  not
contain  all the  information set forth  in the registration  statements and the
exhibits
 
                                       46
<PAGE>
filed as  part of  the registration  statements, to  all of  which reference  is
hereby  made for further information concerning  the Variable Account, the Fixed
Account, the  Company,  the Series  Fund,  the Contract  and  the  Certificates.
Statements  found  in this  Prospectus as  to  the terms  of the  Contracts, the
Certificates and other legal instruments are summaries, and reference is made to
such instruments as filed.
 
                              FINANCIAL STATEMENTS
 
    The  financial  statements  of  the  Company  which  are  included  in  this
Prospectus should be considered only as bearing on the ability of the Company to
meet  its obligations with respect to amounts allocated to the Fixed Account and
with respect to the death benefit and the Company's assumption of the  mortality
and  expense risks. They should  not be considered as  bearing on the investment
performance of the Series Fund shares  held in the Sub-Accounts of the  Variable
Account.  The Variable Account  value of the  interests of Owners, Participants,
Annuitants, Payees and Beneficiaries under  the Contracts is affected  primarily
by  the investment results of  the Series Fund. The  financial statements of the
Variable Account reflect  units outstanding  and expenses  incurred under  other
contracts  participating in the  Variable Account which  impose certain contract
charges that are different from those imposed under the Contracts.
 
                              -------------------
 
                                       47
<PAGE>
SUN LIFE OF CANADA (U.S.) VARIABLE ACCOUNT F
 
STATEMENT OF CONDITION -- December 31, 1995
 
<TABLE>
<CAPTION>
 Assets:
   Investments in MFS/Sun Life Series Trust:                                              Shares          Cost           Value
                                                                                        -----------  --------------  --------------
 <S>                                                                                    <C>          <C>             <C>
     Capital Appreciation Series ("CAS")..............................................   20,694,441  $  555,400,190  $  661,970,636
     Conservative Growth Series ("CGS")...............................................   12,268,501     217,219,949     270,130,493
     Emerging Growth Series ("EGS")...................................................    5,301,215      63,686,760      67,239,716
     MFS/Foreign & Colonial International Growth and Income Series ("FCG")............      708,797       7,067,308       7,178,745
     Government Securities Series ("GSS").............................................   21,859,555     276,753,000     292,703,791
     High Yield Series ("HYS")........................................................   13,520,748     114,301,393     120,648,644
     Managed Sectors Series ("MSS")...................................................    6,986,407     153,500,488     177,775,494
     Money Market Series ("MMS")......................................................  232,452,692     232,452,692     232,452,692
     Research Series ("RES")..........................................................    5,290,149      63,199,027      71,822,398
     Total Return Series ("TRS")......................................................   55,713,387     851,548,080   1,024,281,880
     Utilities Series ("UTS").........................................................    3,409,214      34,769,429      41,796,297
     World Asset Allocation Series ("WAA")............................................    2,115,612      23,284,489      25,862,059
     World Governments Series ("WGS").................................................   11,075,887     133,922,934     138,299,644
     World Growth Series ("WGR")......................................................   11,457,908     127,633,799     141,460,196
     World Total Return Series ("WTR")................................................    1,164,889      12,758,587      13,783,458
                                                                                                     --------------  --------------
                                                                                                     $2,867,498,125  $3,287,406,143
                                                                                                     --------------
                                                                                                     --------------
   Receivable from sponsor.........................................................................................         162,592
                                                                                                                     --------------
         Net assets................................................................................................  $3,287,568,735
                                                                                                                     --------------
                                                                                                                     --------------
</TABLE>
 
<TABLE>
<CAPTION>
                                               Deferred Variable Annuity Contracts    Reserve for
                                              --------------------------------------   Variable
 NET ASSETS APPLICABLE TO CONTRACT OWNERS:      Units     Unit Value      Value        Annuities       Total
                                              ----------  ----------  --------------  -----------  --------------
 <S>                                          <C>         <C>         <C>             <C>          <C>
   MFS Regatta Contracts:
     CAS....................................   6,615,207  $ 20.6225   $  136,410,833   $  245,038  $  136,655,871
     GSS....................................   3,535,152    15.5323       54,908,660      225,698      55,134,358
     HYS....................................   1,068,412    17.8678       19,081,169        8,030      19,089,199
     MSS....................................   2,150,361    18.9987       40,851,418       86,338      40,937,756
     MMS....................................   3,453,907    12.2910       42,442,851      164,363      42,607,214
     TRS....................................  13,106,997    17.8165      233,507,279    1,162,925     234,670,204
     WGS....................................   1,730,002    16.2514       28,118,590       77,135      28,195,725
                                                                      --------------  -----------  --------------
                                                                      $  555,320,800   $1,969,527  $  557,290,327
                                                                      --------------  -----------  --------------
   MFS Regatta Gold Contracts:
     CAS....................................  27,782,739  $ 18.8392   $  523,347,352   $2,166,217  $  525,513,569
     CGS....................................  16,712,586    16.1344      269,625,529      530,164     270,155,693
     EGS....................................   5,346,104    12.5675       67,183,165      --           67,183,165
     FCG....................................     711,179    10.0942        7,178,745      --            7,178,745
     GSS....................................  18,082,586    13.0981      236,851,391      782,886     237,634,277
     HYS....................................   6,880,080    14.7137      101,211,247      310,936     101,522,183
     MSS....................................   8,542,869    15.9925      136,616,983      216,172     136,833,155
     MMS....................................  17,186,041    11.0111      189,244,865      338,871     189,583,736
     RES....................................   5,341,160    13.3663       71,394,271      510,203      71,904,474
     TRS....................................  53,091,748    14.8406      787,862,944    1,668,256     789,531,200
     UTS....................................   3,410,047    12.2403       41,738,359       55,148      41,793,507
     WAA....................................   2,141,041    12.0393       25,776,833       90,584      25,867,417
     WGS....................................   8,272,858    13.2523      109,635,499      519,035     110,154,534
     WGR....................................  11,421,691    12.3321      140,851,336      646,294     141,497,630
     WTR....................................   1,170,586    11.6516       13,639,351      159,580      13,798,931
                                                                      --------------  -----------  --------------
                                                                      $2,722,157,870   $7,994,346  $2,730,152,216
                                                                      --------------  -----------  --------------
 NET ASSETS APPLICABLE TO SPONSOR...................................  $      126,192   $  --       $      126,192
                                                                      --------------  -----------  --------------
         Net assets.................................................  $3,277,604,862   $9,963,873  $3,287,568,735
                                                                      --------------  -----------  --------------
                                                                      --------------  -----------  --------------
</TABLE>
 
                       See notes to financial statements
 
                                       48
<PAGE>
SUN LIFE OF CANADA (U.S.) VARIABLE ACCOUNT F
 
STATEMENT OF OPERATIONS -- Year Ended December 31, 1995
<TABLE>
<CAPTION>
                                           CAS            CGS            EGS            FCG           GSS
                                       Sub-Account    Sub-Account    Sub-Account*   Sub-Account** Sub-Account
                                      -------------   ------------   ------------   -----------   ------------
 <S>                                  <C>             <C>            <C>            <C>           <C>
 INCOME AND EXPENSES:
   Dividend income and capital gain
    distributions received..........  $  12,222,330   $  4,213,752   $   --          $ --         $ 15,080,454
   Mortality and expense risk
    charges.........................      6,566,319      2,296,967       245,139        9,593        3,262,464
   Distribution expense charges.....        180,081        --            --            --               80,215
   Administrative expense charges...        607,879        275,636        29,417        1,151          311,281
                                      -------------   ------------   ------------   -----------   ------------
       Net investment income
        (expense)...................  $   4,868,051   $  1,641,149   $  (274,556)    $(10,744)    $ 11,426,494
                                      -------------   ------------   ------------   -----------   ------------
                                      -------------   ------------   ------------   -----------   ------------
 REALIZED AND UNREALIZED GAINS
  (LOSSES):
   Realized gains on investment
    transactions:
     Proceeds from sales............  $ 168,445,760   $  7,669,518   $17,109,373     $ 11,837     $ 78,420,543
     Cost of investments sold.......    159,776,008      6,109,739    14,892,586       12,080       79,967,164
                                      -------------   ------------   ------------   -----------   ------------
       Net realized gains
        (losses)....................  $   8,669,752   $  1,559,779   $ 2,216,787     $   (243)    $ (1,546,621)
                                      -------------   ------------   ------------   -----------   ------------
   Net unrealized appreciation
    (depreciation) on investments:
     End of year....................  $ 106,570,446   $ 52,910,544   $ 3,552,956     $111,437     $ 15,950,791
     Beginning of year..............    (24,453,057)       124,681       --            --          (13,654,356)
                                      -------------   ------------   ------------   -----------   ------------
       Change in unrealized
        appreciation................  $ 131,023,503   $ 52,785,863   $ 3,552,956     $111,437     $ 29,605,147
                                      -------------   ------------   ------------   -----------   ------------
   Realized and unrealized gains....  $ 139,693,255   $ 54,345,642   $ 5,769,743     $111,194     $ 28,058,526
                                      -------------   ------------   ------------   -----------   ------------
   INCREASE IN NET ASSETS FROM
    OPERATIONS......................  $ 144,561,306   $ 55,986,791   $ 5,495,187     $100,450     $ 39,485,020
                                      -------------   ------------   ------------   -----------   ------------
                                      -------------   ------------   ------------   -----------   ------------
 
<CAPTION>
                                          HYS            MSS             MMS
                                      Sub-Account    Sub-Account     Sub-Account
                                      ------------   ------------   -------------
 <S>                                  <C>            <C>            <C>
 INCOME AND EXPENSES:
   Dividend income and capital gain
    distributions received..........  $  6,506,329   $  4,070,752   $  10,112,163
   Mortality and expense risk
    charges.........................     1,234,228      1,785,559       2,360,642
   Distribution expense charges.....        25,060         54,132          57,813
   Administrative expense charges...       123,047        160,137         225,464
                                      ------------   ------------   -------------
       Net investment income
        (expense)...................  $  5,123,994   $  2,070,924   $   7,468,244
                                      ------------   ------------   -------------
                                      ------------   ------------   -------------
 REALIZED AND UNREALIZED GAINS
  (LOSSES):
   Realized gains on investment
    transactions:
     Proceeds from sales............  $ 55,764,339   $ 25,990,021   $ 393,915,269
     Cost of investments sold.......    53,874,507     23,211,669     393,915,269
                                      ------------   ------------   -------------
       Net realized gains
        (losses)....................  $  1,889,832   $  2,778,352   $    --
                                      ------------   ------------   -------------
   Net unrealized appreciation
    (depreciation) on investments:
     End of year....................  $  6,347,251   $ 24,275,006   $    --
     Beginning of year..............      (491,661)    (6,047,477)       --
                                      ------------   ------------   -------------
       Change in unrealized
        appreciation................  $  6,838,912   $ 30,322,483   $    --
                                      ------------   ------------   -------------
   Realized and unrealized gains....  $  8,728,744   $ 33,100,835   $    --
                                      ------------   ------------   -------------
   INCREASE IN NET ASSETS FROM
    OPERATIONS......................  $ 13,852,738   $ 35,171,759   $   7,468,244
                                      ------------   ------------   -------------
                                      ------------   ------------   -------------
</TABLE>
 
 *For the period from May 1, 1995 (commencement of investment operations) to
  December 31, 1995.
**For the period from October 4, 1995 (commencement of investment operations) to
  December 31, 1995.
 
                       See notes to financial statements
 
                                       49
<PAGE>
SUN LIFE OF CANADA (U.S.) VARIABLE ACCOUNT F
 
STATEMENT OF OPERATIONS -- continued
<TABLE>
<CAPTION>
                                               RES            TRS            UTS           WAA           WGS
                                           Sub-Account    Sub-Account    Sub-Account   Sub-Account   Sub-Account
                                           -----------   -------------   -----------   -----------   ------------
 <S>                                       <C>           <C>             <C>           <C>           <C>
 INCOME AND EXPENSES:
   Dividend income and capital gain
    distributions received...............  $    5,213    $  32,466,536   $  667,466    $    6,090    $  7,171,231
   Mortality and expense risk charges....     347,162       10,927,279      354,562       162,497       1,688,912
   Distribution expense charges..........      --              323,202       --            --              41,714
   Administrative expense charges........      41,659          988,072       42,547        19,500         160,955
                                           -----------   -------------   -----------   -----------   ------------
       Net investment income (expense)...  $ (383,608)   $  20,227,983   $  270,357    $ (175,907)   $  5,279,650
                                           -----------   -------------   -----------   -----------   ------------
                                           -----------   -------------   -----------   -----------   ------------
 REALIZED AND UNREALIZED GAINS (LOSSES):
   Realized gains on investment
    transactions:
     Proceeds from sales.................  $3,467,672    $  84,253,831   $8,132,861    $1,134,082    $ 37,103,469
     Cost of investments sold............   3,086,840       67,830,111    7,866,953     1,013,492      37,082,327
                                           -----------   -------------   -----------   -----------   ------------
       Net realized gains................  $  380,832    $  16,423,720   $  265,908    $  120,590    $     21,142
                                           -----------   -------------   -----------   -----------   ------------
   Net unrealized appreciation
    (depreciation) on investments:
     End of year.........................  $8,623,371    $ 172,733,800   $7,026,868    $2,577,570    $  4,376,710
     Beginning of year...................      11,209       12,939,657     (420,499)       17,780      (7,922,900)
                                           -----------   -------------   -----------   -----------   ------------
       Change in unrealized
        appreciation.....................  $8,612,162    $ 159,794,143   $7,447,367    $2,559,790    $ 12,299,610
                                           -----------   -------------   -----------   -----------   ------------
   Realized and unrealized gains.........  $8,992,994    $ 176,217,863   $7,713,275    $2,680,380    $ 12,320,752
                                           -----------   -------------   -----------   -----------   ------------
   INCREASE IN NET ASSETS FROM
    OPERATIONS...........................  $8,609,386    $ 196,445,846   $7,983,632    $2,504,473    $ 17,600,402
                                           -----------   -------------   -----------   -----------   ------------
                                           -----------   -------------   -----------   -----------   ------------
 
<CAPTION>
                                               WGR            WTR
                                           Sub-Account    Sub-Account       Total
                                           ------------   -----------   -------------
 <S>                                       <C>            <C>           <C>
 INCOME AND EXPENSES:
   Dividend income and capital gain
    distributions received...............  $  3,100,162   $    2,399    $  95,624,877
   Mortality and expense risk charges....     1,457,299       79,873       32,778,495
   Distribution expense charges..........       --            --              762,217
   Administrative expense charges........       174,876        9,584        3,171,205
                                           ------------   -----------   -------------
       Net investment income (expense)...  $  1,467,987   $  (87,058)   $  58,912,960
                                           ------------   -----------   -------------
                                           ------------   -----------   -------------
 REALIZED AND UNREALIZED GAINS (LOSSES):
   Realized gains on investment
    transactions:
     Proceeds from sales.................  $ 24,859,820   $  971,428    $ 907,249,823
     Cost of investments sold............    23,988,619      908,827      873,536,191
                                           ------------   -----------   -------------
       Net realized gains................  $    871,201   $   62,601    $  33,713,632
                                           ------------   -----------   -------------
   Net unrealized appreciation
    (depreciation) on investments:
     End of year.........................  $ 13,826,397   $1,024,871    $ 419,908,018
     Beginning of year...................      (867,181)       4,178      (40,759,626)
                                           ------------   -----------   -------------
       Change in unrealized
        appreciation.....................  $ 14,693,578   $1,020,693    $ 460,667,644
                                           ------------   -----------   -------------
   Realized and unrealized gains.........  $ 15,564,779   $1,083,294    $ 494,381,276
                                           ------------   -----------   -------------
   INCREASE IN NET ASSETS FROM
    OPERATIONS...........................  $ 17,032,766   $  996,236    $ 553,294,236
                                           ------------   -----------   -------------
                                           ------------   -----------   -------------
</TABLE>
 
                       See notes to financial statements
 
                                       50
<PAGE>
SUN LIFE OF CANADA (U.S.) VARIABLE ACCOUNT F
 
STATEMENT OF CHANGES IN NET ASSETS
 
<TABLE>
<CAPTION>
                                              CAS                             CGS                     EGS             FCG
                                          Sub-Account                     Sub-Account             Sub-Account     Sub-Account
                                 -----------------------------   -----------------------------   -------------   -------------
                                          Year Ended                      Year Ended              Year Ended      Year Ended
                                         December 31,                    December 31,            December 31,    December 31,
                                 -----------------------------   -----------------------------   -------------   -------------
                                     1995            1994            1995            1994            1995*          1995**
                                 -------------   -------------   -------------   -------------   -------------   -------------
 <S>                             <C>             <C>             <C>             <C>             <C>             <C>
 OPERATIONS:
   Net investment income
    (expense)..................  $   4,868,051   $  27,825,823   $   1,641,149   $     147,916   $    (274,556)  $     (10,744)
   Net realized gains
    (losses)...................      8,669,752      12,649,928       1,559,779         469,410       2,216,787            (243)
   Net unrealized gains
    (losses)...................    131,023,503     (57,996,267)     52,785,863      (3,896,273)      3,552,956         111,437
                                 -------------   -------------   -------------   -------------   -------------   -------------
     Increase (decrease) in net
      assets from operations...  $ 144,561,306   $ (17,520,516)  $  55,986,791   $  (3,278,947)  $   5,495,187   $     100,450
                                 -------------   -------------   -------------   -------------   -------------   -------------
 PARTICIPANT TRANSACTIONS:
   Accumulation Activity:
     Purchase payments
      received.................  $ 120,979,478   $ 131,738,032   $  74,122,408   $  54,704,628   $  34,471,454   $   4,120,619
     Net transfers between
      Sub-Accounts and Fixed
      Account..................     51,189,081     (30,000,160)     19,980,665       5,906,300      27,751,346       3,003,996
     Withdrawals, surrenders,
      annuitizations and
      contract charges.........    (35,672,499)    (22,127,701)    (11,060,939)     (4,909,494)       (532,429)        (46,320)
                                 -------------   -------------   -------------   -------------   -------------   -------------
       Net accumulation
        activity...............  $ 136,496,060   $  79,610,171   $  83,042,134   $  55,701,434   $  61,690,371   $   7,078,295
                                 -------------   -------------   -------------   -------------   -------------   -------------
   Annuitization Activity:
     Annuitizations............  $   1,153,294   $     325,123   $     201,542   $     131,189   $      50,528   $    --
     Annuity payments and
      contract charges.........       (216,005)       (135,087)        (58,715)        (58,514)           (593)       --
     Net transfers between
      Sub-Accounts.............        531,083         (13,777)          2,298          68,480           4,223        --
     Adjustment to annuity
      reserve..................        131,042        (138,996)         30,462          (3,424)        (56,551)       --
                                 -------------   -------------   -------------   -------------   -------------   -------------
       Net annuitization
        activity...............  $   1,599,414   $      37,263   $     175,587   $     137,731   $      (2,393)  $    --
                                 -------------   -------------   -------------   -------------   -------------   -------------
   Increase in net assets from
    participant transactions...  $ 138,095,474   $  79,647,434   $  83,217,721   $  55,839,165   $  61,687,978   $   7,078,295
                                 -------------   -------------   -------------   -------------   -------------   -------------
     Increase in net assets....  $ 282,656,780   $  62,126,918   $ 139,204,512   $  52,560,218   $  67,183,165   $   7,178,745
 NET ASSETS:
   Beginning of year...........    379,512,660     317,385,742     130,951,181      78,390,963        --              --
                                 -------------   -------------   -------------   -------------   -------------   -------------
   End of year.................  $ 662,169,440   $ 379,512,660   $ 270,155,693   $ 130,951,181   $  67,183,165   $   7,178,745
                                 -------------   -------------   -------------   -------------   -------------   -------------
                                 -------------   -------------   -------------   -------------   -------------   -------------
</TABLE>
 
 *For  the period  from May 1,  1995 (commencement of  investment operations) to
  December 31, 1995.
**For the period from October 4, 1995 (commencement of investment operations) to
  December 31, 1995.
 
                       See notes to financial statements
 
                                       51
<PAGE>
SUN LIFE OF CANADA (U.S.) VARIABLE ACCOUNT F
 
STATEMENT OF CHANGES IN NET ASSETS -- continued
 
<TABLE>
<CAPTION>
                                                GSS                            HYS                             MSS
                                            Sub-Account                    Sub-Account                     Sub-Account
                                   -----------------------------   ----------------------------   -----------------------------
                                            Year Ended                      Year Ended                     Year Ended
                                           December 31,                    December 31,                   December 31,
                                   -----------------------------   ----------------------------   -----------------------------
                                       1995            1994            1995            1994           1995            1994
                                   -------------   -------------   -------------   ------------   -------------   -------------
 <S>                               <C>             <C>             <C>             <C>            <C>             <C>
 OPERATIONS:
   Net investment income.........  $  11,426,494   $  10,541,212   $   5,123,994   $  3,353,160   $   2,070,924   $  10,371,457
   Net realized gains (losses)...     (1,546,621)        989,314       1,889,832     (1,835,584)      2,778,352       2,312,910
   Net unrealized gains
    (losses).....................     29,605,147     (19,932,794)      6,838,912     (3,354,235)     30,322,483     (16,183,713)
                                   -------------   -------------   -------------   ------------   -------------   -------------
       Increase (decrease) in net
        assets from operations...  $  39,485,020   $  (8,402,268)  $  13,852,738   $ (1,836,659)  $  35,171,759   $  (3,499,346)
                                   -------------   -------------   -------------   ------------   -------------   -------------
 PARTICIPANT TRANSACTIONS:
   Accumulation Activity:
     Purchase payments
      received...................  $  47,266,837   $  81,307,573   $  20,152,853   $ 25,863,588   $  34,586,296   $  29,286,189
     Net transfers between
      Sub-Accounts and Fixed
      Account....................    (42,381,252)    (10,559,956)     22,611,563    (10,800,800)      9,193,092      (4,775,869)
     Withdrawals, surrenders,
      annuitizations and contract
      charges....................    (21,245,942)    (18,857,834)     (7,980,818)    (6,561,955)     (9,392,233)     (7,012,701)
                                   -------------   -------------   -------------   ------------   -------------   -------------
       Net accumulation
        activity.................  $ (16,360,357)  $  51,889,783   $  34,783,598   $  8,500,833   $  34,387,155   $  17,497,619
                                   -------------   -------------   -------------   ------------   -------------   -------------
   Annuitization Activity:
     Annuitizations..............  $     354,393   $     519,211   $      16,894   $    143,700   $      92,920   $      68,728
     Annuity payments and
      contract charges...........       (168,285)       (131,378)        (68,402)       (71,050)        (56,337)        (32,033)
     Net transfers between
      Sub-Accounts...............        (53,070)       (128,389)          8,428        119,221          94,161             976
     Adjustment to annuity
      reserve....................         33,716          41,563         (25,024)        (8,871)         (2,133)           (388)
                                   -------------   -------------   -------------   ------------   -------------   -------------
       Net annuitization
        activity.................  $     166,754   $     301,007   $     (68,104)  $    183,000   $     128,611   $      37,283
                                   -------------   -------------   -------------   ------------   -------------   -------------
   Increase in net assets from
    participant transactions.....  $ (16,193,603)  $  52,190,790   $  34,715,494   $  8,683,833   $  34,515,766   $  17,534,902
                                   -------------   -------------   -------------   ------------   -------------   -------------
     Increase in net assets......  $  23,291,417   $  43,788,522   $  48,568,232   $  6,847,174   $  69,687,525   $  14,035,556
 NET ASSETS:
   Beginning of year.............    269,477,218     225,688,696      72,043,150     65,195,976     108,083,386      94,047,830
                                   -------------   -------------   -------------   ------------   -------------   -------------
   End of year...................  $ 292,768,635   $ 269,477,218   $ 120,611,382   $ 72,043,150   $ 177,770,911   $ 108,083,386
                                   -------------   -------------   -------------   ------------   -------------   -------------
                                   -------------   -------------   -------------   ------------   -------------   -------------
</TABLE>
 
                       See notes to financial statements
 
                                       52
<PAGE>
SUN LIFE OF CANADA (U.S.) VARIABLE ACCOUNT F
 
STATEMENT OF CHANGES IN NET ASSETS -- continued
<TABLE>
<CAPTION>
                                                        MMS                            RES
                                                    Sub-Account                    Sub-Account
                                           ------------------------------   --------------------------
                                                     Year Ended                     Year Ended
                                                    December 31,                   December 31,
                                           ------------------------------   --------------------------
                                                1995            1994            1995          1994*
                                           --------------   -------------   ------------   -----------
 <S>                                       <C>              <C>             <C>            <C>
 OPERATIONS:
   Net investment income (expense).......  $    7,468,244   $   4,088,955   $   (383,608)  $    (4,034)
   Net realized gains (losses)...........        --              --              380,832        (3,877)
   Net unrealized gains (losses).........        --              --            8,612,162        11,209
                                           --------------   -------------   ------------   -----------
       Increase (decrease) in net assets
        from operations..................  $    7,468,244   $   4,088,955   $  8,609,386   $     3,298
                                           --------------   -------------   ------------   -----------
 PARTICIPANT TRANSACTIONS:
   Accumulation Activity:
     Purchase payments received..........  $  172,273,093   $ 169,065,890   $ 44,406,655   $ 1,223,399
     Net transfers between Sub-Accounts
      and Fixed Account..................    (115,663,895)    (47,970,496)    15,859,913     2,663,995
     Withdrawals, surrenders,
      annuitizations and contract
      charges............................     (34,523,223)    (21,288,054)    (1,251,158)      (19,412)
                                           --------------   -------------   ------------   -----------
       Net accumulation activity.........  $   22,085,975   $  99,807,340   $ 59,015,410   $ 3,867,982
                                           --------------   -------------   ------------   -----------
   Annuitization Activity:
     Annuitizations......................  $      583,368   $     559,738   $    404,830   $   --
     Annuity payments and contract
      charges............................        (185,934)       (103,980)       (20,548)      --
     Net transfers between
      Sub-Accounts.......................        (656,607)        122,710        (57,959)      --
     Adjustment to annuity reserve.......         (33,157)         96,065         82,075       --
                                           --------------   -------------   ------------   -----------
       Net annuitization activity........  $     (292,330)  $     674,533   $    408,398   $   --
                                           --------------   -------------   ------------   -----------
   Increase in net assets from
    participant transactions.............  $   21,793,645   $ 100,481,873   $ 59,423,808   $ 3,867,982
                                           --------------   -------------   ------------   -----------
     Increase in net assets..............  $   29,261,889   $ 104,570,828   $ 68,033,194   $ 3,871,280
 NET ASSETS:
   Beginning of year.....................     203,055,253      98,484,425      3,871,280       --
                                           --------------   -------------   ------------   -----------
   End of year...........................  $  232,317,142   $ 203,055,253   $ 71,904,474   $ 3,871,280
                                           --------------   -------------   ------------   -----------
                                           --------------   -------------   ------------   -----------
 
<CAPTION>
                                                        TRS
                                                    Sub-Account
                                           ------------------------------
                                                     Year Ended
                                                    December 31,
                                           ------------------------------
                                                1995            1994
                                           --------------   -------------
 <S>                                       <C>              <C>
 OPERATIONS:
   Net investment income (expense).......  $   20,227,983   $  19,183,787
   Net realized gains (losses)...........      16,423,720       9,131,549
   Net unrealized gains (losses).........     159,794,143     (56,210,282)
                                           --------------   -------------
       Increase (decrease) in net assets
        from operations..................  $  196,445,846   $ (27,894,946)
                                           --------------   -------------
 PARTICIPANT TRANSACTIONS:
   Accumulation Activity:
     Purchase payments received..........  $  114,688,434   $ 222,713,883
     Net transfers between Sub-Accounts
      and Fixed Account..................      (1,317,333)     (7,151,070)
     Withdrawals, surrenders,
      annuitizations and contract
      charges............................     (63,409,172)    (51,917,624)
                                           --------------   -------------
       Net accumulation activity.........  $   49,961,929   $ 163,645,189
                                           --------------   -------------
   Annuitization Activity:
     Annuitizations......................  $      238,231   $     816,949
     Annuity payments and contract
      charges............................        (656,053)       (624,252)
     Net transfers between
      Sub-Accounts.......................          17,486         (63,499)
     Adjustment to annuity reserve.......         (16,966)         21,464
                                           --------------   -------------
       Net annuitization activity........  $     (417,302)  $     150,662
                                           --------------   -------------
   Increase in net assets from
    participant transactions.............  $   49,544,627   $ 163,795,851
                                           --------------   -------------
     Increase in net assets..............  $  245,990,473   $ 135,900,905
 NET ASSETS:
   Beginning of year.....................     778,210,931     642,310,026
                                           --------------   -------------
   End of year...........................  $1,024,201,404   $ 778,210,931
                                           --------------   -------------
                                           --------------   -------------
</TABLE>
 
*For the period from November 7, 1994 (commencement of investment operations) to
 December 31, 1994.
 
                       See notes to financial statements
 
                                       53
<PAGE>
SUN LIFE OF CANADA (U.S.) VARIABLE ACCOUNT F
 
STATEMENT OF CHANGES IN NET ASSETS -- continued
 
<TABLE>
<CAPTION>
                                                       UTS                          WAA                            WGS
                                                   Sub-Account                  Sub-Account                    Sub-Account
                                           ---------------------------   --------------------------   -----------------------------
                                                   Year Ended                    Year Ended                    Year Ended
                                                  December 31,                  December 31,                  December 31,
                                           ---------------------------   --------------------------   -----------------------------
                                               1995           1994           1995          1994*          1995            1994
                                           ------------   ------------   ------------   -----------   -------------   -------------
 <S>                                       <C>            <C>            <C>            <C>           <C>             <C>
 OPERATIONS:
   Net investment income (expense).......  $    270,357   $   (199,726)  $   (175,907)  $    (2,966)  $   5,279,650   $   9,480,795
   Net realized gains (losses)...........       265,908       (122,032)       120,590          (147)         21,142        (873,333)
   Net unrealized gains (losses).........     7,447,367       (443,189)     2,559,790        17,780      12,299,610     (16,425,541)
                                           ------------   ------------   ------------   -----------   -------------   -------------
     Increase (decrease) in net assets
      from operations....................  $  7,983,632   $   (764,947)  $  2,504,473   $    14,667   $  17,600,402   $  (7,818,079)
                                           ------------   ------------   ------------   -----------   -------------   -------------
 PARTICIPANT TRANSACTIONS:
   Accumulation Activity:
     Purchase payments received..........  $ 12,426,034   $ 17,617,955   $ 14,182,774   $ 1,457,362   $  12,226,329   $  37,946,650
     Net transfers between Sub-Accounts
      and Fixed Account..................     2,364,291      2,488,460      6,506,983     1,534,984      (8,347,691)    (17,688,160)
     Withdrawals, surrenders,
      annuitizations and contract
      charges............................    (2,335,754)      (828,336)      (403,056)       (3,895)     (8,464,694)     (8,869,406)
                                           ------------   ------------   ------------   -----------   -------------   -------------
       Net accumulation activity.........  $ 12,454,571   $ 19,278,079   $ 20,286,701   $ 2,988,451   $  (4,586,056)  $  11,389,084
                                           ------------   ------------   ------------   -----------   -------------   -------------
   Annuitization Activity:
     Annuitizations......................  $     16,672   $     27,927   $    --        $   --        $       9,873   $     303,841
     Annuity payments and contract
      charges............................        (7,291)       --             (10,989)      --             (159,462)       (162,696)
     Net transfers between
      Sub-Accounts.......................         9,915        --              78,757       --             --              (142,264)
     Adjustment to annuity reserve.......        (2,791)             1          5,357       --               49,038            (338)
                                           ------------   ------------   ------------   -----------   -------------   -------------
       Net annuitization activity........  $     16,505   $     27,928   $     73,125   $   --        $    (100,551)  $      (1,457)
                                           ------------   ------------   ------------   -----------   -------------   -------------
   Increase in net assets from
    participant transactions.............  $ 12,471,076   $ 19,306,007   $ 20,359,826   $ 2,988,451   $  (4,686,607)  $  11,387,627
                                           ------------   ------------   ------------   -----------   -------------   -------------
     Increase in net assets..............  $ 20,454,708   $ 18,541,060   $ 22,864,299   $ 3,003,118   $  12,913,795   $   3,569,548
 NET ASSETS:
   Beginning of year.....................    21,338,799      2,797,739      3,003,118       --          125,436,464     121,866,916
                                           ------------   ------------   ------------   -----------   -------------   -------------
   End of year...........................  $ 41,793,507   $ 21,338,799   $ 25,867,417   $ 3,003,118   $ 138,350,259   $ 125,436,464
                                           ------------   ------------   ------------   -----------   -------------   -------------
                                           ------------   ------------   ------------   -----------   -------------   -------------
</TABLE>
 
*For the period from November 7, 1994 (commencement of investment operations) to
 December 31, 1994.
 
                       See notes to financial statements
 
                                       54
<PAGE>
SUN LIFE OF CANADA (U.S.) VARIABLE ACCOUNT F
 
STATEMENT OF CHANGES IN NET ASSETS -- continued
 
<TABLE>
<CAPTION>
                                                  WGR                           WTR
                                              Sub-Account                   Sub-Account                         Total
                                      ----------------------------   --------------------------   ---------------------------------
                                               Year Ended                    Year Ended                      Year Ended
                                              December 31,                  December 31,                    December 31,
                                      ----------------------------   --------------------------   ---------------------------------
                                          1995            1994           1995          1994*           1995              1994
                                      -------------   ------------   ------------   -----------   ---------------   ---------------
 <S>                                  <C>             <C>            <C>            <C>           <C>               <C>
 OPERATIONS:
   Net investment income
    (expense).......................  $   1,467,987   $   (890,634)  $    (87,058)  $    (1,446)  $    58,912,960   $    83,894,299
   Net realized gains...............        871,201      1,495,414         62,601            63        33,713,632        24,213,615
   Net unrealized gains (losses)....     14,693,578     (1,584,010)     1,020,693         4,178       460,667,644      (175,993,137)
                                      -------------   ------------   ------------   -----------   ---------------   ---------------
     Increase (decrease) in net
      assets from operations........  $  17,032,766   $   (979,230)  $    996,236   $     2,795   $   553,294,236   $   (67,885,223)
                                      -------------   ------------   ------------   -----------   ---------------   ---------------
 PARTICIPANT TRANSACTIONS:
   Accumulation Activity:
     Purchase payments received.....  $  27,109,744   $ 62,712,792   $ 10,064,130   $   756,005   $   743,077,138   $   836,393,946
     Net transfers between
      Sub-Accounts and Fixed
      Account.......................      5,024,725     21,605,891      1,710,064       626,641        (2,514,452)      (94,120,240)
     Withdrawals, surrenders,
      annuitizations and contract
      charges.......................     (7,221,767)    (3,238,104)      (505,397)       (1,410)     (204,045,401)     (145,635,926)
                                      -------------   ------------   ------------   -----------   ---------------   ---------------
       Net accumulation activity....  $  24,912,702   $ 81,080,579   $ 11,268,797   $ 1,381,236   $   536,517,285   $   596,637,780
                                      -------------   ------------   ------------   -----------   ---------------   ---------------
   Annuitization Activity:
     Annuitizations.................  $     398,205   $    139,258   $    141,543   $   --        $     3,662,293   $     3,035,664
     Annuity payments and contract
      charges.......................        (48,306)        (9,292)        (6,755)      --             (1,663,675)       (1,328,282)
     Net transfers between
      Sub-Accounts..................          6,845         36,542           (394)      --                (14,834)        --
     Adjustment to annuity
      reserve.......................         42,104         (4,670)        15,473       --                252,645             2,406
                                      -------------   ------------   ------------   -----------   ---------------   ---------------
       Net annuitization activity...  $     398,848   $    161,838   $    149,867   $   --        $     2,236,429   $     1,709,788
                                      -------------   ------------   ------------   -----------   ---------------   ---------------
   Increase in net assets from
    participant transactions........  $  25,311,550   $ 81,242,417   $ 11,418,664   $ 1,381,236   $   538,753,714   $   598,347,568
                                      -------------   ------------   ------------   -----------   ---------------   ---------------
     Increase in net assets.........  $  42,344,316   $ 80,263,187   $ 12,414,900   $ 1,384,031   $ 1,092,047,950   $   530,462,345
 NET ASSETS:
   Beginning of year................     99,153,314     18,890,127      1,384,031       --          2,195,520,785     1,665,058,440
                                      -------------   ------------   ------------   -----------   ---------------   ---------------
   End of year......................  $ 141,497,630   $ 99,153,314   $ 13,798,931   $ 1,384,031   $ 3,287,568,735   $ 2,195,520,785
                                      -------------   ------------   ------------   -----------   ---------------   ---------------
                                      -------------   ------------   ------------   -----------   ---------------   ---------------
</TABLE>
 
*For the period from November 7, 1994 (commencement of investment operations) to
 December 31, 1994.
 
                       See notes to financial statements
 
                                       55
<PAGE>
SUN LIFE OF CANADA (U.S.) VARIABLE ACCOUNT F
 
NOTES TO FINANCIAL STATEMENTS
 
(1) ORGANIZATION
Sun  Life  of  Canada (U.S.)  Variable  Account  F (the  "Variable  Account"), a
separate account of Sun  Life Assurance Company of  Canada (U.S.), the  Sponsor,
was  established on July 13, 1989 as  a funding vehicle for the variable portion
of certain  group combination  fixed/variable  annuity contracts.  The  Variable
Account  is registered  with the  Securities and  Exchange Commission  under the
Investment Company Act of 1940 as a unit investment trust.
 
The  assets  of  the  Variable  Account  are  divided  into  Sub-Accounts.  Each
Sub-Account  is invested in shares  of a specific series  of MFS/Sun Life Series
Trust (the "Series Trust"), an open-end management investment company registered
under the  Investment  Company Act  of  1940. Massachusetts  Financial  Services
Company,  a wholly-owned subsidiary of the Sponsor, is investment adviser to the
Series Trust.
 
(2) SIGNIFICANT ACCOUNTING POLICIES
INVESTMENT VALUATIONS
Investments in shares of the Series Trust are recorded at their net asset value.
Realized gains and losses on sales of shares of the Series Trust are  determined
on  the identified  cost basis. Dividend  income and  capital gain distributions
received by the Sub-Accounts  are reinvested in  additional Series Trust  shares
and are recognized on the ex-dividend date.
 
Exchanges  between Sub-Accounts requested by contract owners are recorded in the
new Sub-Account upon receipt of the redemption proceeds.
 
FEDERAL INCOME TAX STATUS
The operations of the Variable Account are part of the operations of the Sponsor
and are not taxed separately; the Variable  Account is not taxed as a  regulated
investment  company. The Sponsor qualifies for  the federal income tax treatment
granted to life insurance companies under  Subchapter L of the Internal  Revenue
Code. Under existing federal income tax law, investment income and capital gains
earned  by the Variable  Account on contract  owner reserves are  not subject to
tax.
 
(3) CONTRACT CHARGES
A mortality and expense risk charge based  on the value of the Variable  Account
is  deducted from the Variable  Account at the end  of each valuation period for
the mortality  and expense  risks assumed  by the  Sponsor. The  deductions  are
transferred  periodically  to the  Sponsor. Currently,  the  deduction is  at an
effective annual rate of 1.25%.
 
Each year on the contract  anniversary, an account administration fee  ("Account
Fee")  equal to the  lesser of $30 or  2% of the  participant's account value is
deducted from the  participant's account  to reimburse the  Sponsor for  certain
administrative  expenses. After  the annuity  commencement date  the Account Fee
will be deducted  pro rata from  each variable annuity  payment made during  the
year.
 
The  Sponsor does not deduct  a sales charge from  purchase payments. However, a
withdrawal charge (contingent  deferred sales  charge) of  up to  6% of  certain
amounts  withdrawn, when applicable,  may be deducted  to cover certain expenses
relating to the sale of the contracts and certificates.
 
For assuming the risk that withdrawal charges may be insufficient to  compensate
it  for the costs of distributing the MFS Regatta contracts, the Sponsor makes a
deduction from the Variable Account at the end of each valuation period for  the
first seven account years at an effective annual rate of 0.15% of the net assets
attributable to such contracts. No deduction for the distribution expense charge
is made after the seventh account anniversary.
 
As  reimbursement for administrative  expenses attributable to  MFS Regatta Gold
contracts which exceed the revenues received from the Account Fees described  on
the  preceding page derived  from such contracts, the  Sponsor makes a deduction
from the Variable Account at  the end of each  valuation period at an  effective
annual rate of 0.15% of the net assets attributable to such contracts.
 
                                       56
<PAGE>
SUN LIFE OF CANADA (U.S.) VARIABLE ACCOUNT F
 
NOTES TO FINANCIAL STATEMENTS -- continued
(4) ANNUITY RESERVES
Annuity  reserves are calculated  using the 1983  Individual Annuitant Mortality
Table and an assumed interest rate of 4% or 3%, as stated in each  participant's
contract.  Required adjustments to the reserves are accomplished by transfers to
or from the Sponsor.
 
(5) UNIT ACTIVITY FROM PARTICIPANT TRANSACTIONS
 
<TABLE>
<CAPTION>
                                                                                     Units Transferred
                                                                                 Between Sub-Accounts and
                                   Units Outstanding                                Fixed Accumulation
                                   Beginning of Year        Units Purchased               Account
                                 ----------------------  ----------------------  -------------------------
                                       Year Ended              Year Ended               Year Ended
                                      December 31,            December 31,             December 31,
                                 ----------------------  ----------------------  -------------------------
                                    1995        1994        1995        1994        1995          1994
                                 ----------  ----------  ----------  ----------  -----------   -----------
 <S>                             <C>         <C>         <C>         <C>         <C>           <C>
 MFS REGATTA CONTRACTS
 ------------------------------
 CAS Sub-Account...............   6,184,731   7,272,302       8,683       9,333    1,002,774      (455,183)
 GSS Sub-Account...............   4,235,203   4,708,841          48      10,633     (289,212)      (21,084)
 HYS Sub-Account...............     839,825   1,087,265      --          --          332,946       (47,560)
 MSS Sub-Account...............   2,066,642   2,431,072      12,503       1,536      206,072      (134,616)
 MMS Sub-Account...............   3,873,044   3,081,737       6,171       4,866      315,466     1,706,748
 TRS Sub-Account...............  14,225,539  15,806,723       4,093      10,133      117,384       (92,067)
 WGS Sub-Account...............   1,967,375   2,300,611      --           2,332      (87,581)      (73,063)
 MFS REGATTA GOLD CONTRACTS
 ------------------------------
 CAS Sub-Account...............  19,909,649  13,245,124   7,106,728   9,091,150    2,287,026    (1,559,101)
 CGS Sub-Account...............  10,979,711   6,412,270   5,181,021   4,513,854    1,359,507       483,956
 EGS Sub-Account...............      --          --       2,978,021      --        2,420,603       --
 FCG Sub-Account...............      --          --         414,060      --          301,717       --
 GSS Sub-Account...............  18,784,262  13,661,303   3,836,496   7,175,667   (3,241,260)     (868,594)
 HYS Sub-Account...............   4,605,818   3,599,473   1,439,990   1,996,981    1,286,018      (717,869)
 MSS Sub-Account...............   6,351,641   4,525,423   2,269,426   2,365,855      411,655      (238,446)
 MMS Sub-Account...............  14,774,386   6,055,673  16,108,059  16,275,632  (11,138,037)   (6,440,721)
 RES Sub-Account...............     392,528      --       3,726,811     124,868    1,346,160       269,642
 TRS Sub-Account...............  48,270,556  32,979,812   8,512,923  18,470,599     (391,980)     (520,442)
 UTS Sub-Account...............   2,273,439     279,796   1,164,148   1,824,507      204,917       258,454
 WAA Sub-Account...............     299,210      --       1,294,348     145,953      590,509       153,647
 WGR Sub-Account...............   9,182,555   1,778,644   2,422,350   5,802,910      475,925     1,954,152
 WGS Sub-Account...............   8,334,019   7,008,613     981,591   3,238,912     (532,375)   (1,467,047)
 WTR Sub-Account...............     138,126      --         922,160      75,613      159,909        62,654
</TABLE>
 
<TABLE>
<CAPTION>
                                     Units Withdrawn,
                                      Surrendered and          Units Outstanding
                                        Annuitized                End of Year
                                 -------------------------   ----------------------
                                        Year Ended                 Year Ended
                                       December 31,               December 31,
                                 -------------------------   ----------------------
                                    1995          1994          1995        1994
                                 -----------   -----------   ----------  ----------
 <S>                             <C>           <C>           <C>         <C>
 MFS REGATTA CONTRACTS
 ------------------------------
 CAS Sub-Account...............     (580,981)     (641,721)   6,615,207   6,184,731
 GSS Sub-Account...............     (410,887)     (463,187)   3,535,152   4,235,203
 HYS Sub-Account...............     (104,359)     (199,880)   1,068,412     839,825
 MSS Sub-Account...............     (134,856)     (231,350)   2,150,361   2,066,642
 MMS Sub-Account...............     (740,774)     (920,307)   3,453,907   3,873,044
 TRS Sub-Account...............   (1,240,019)   (1,499,250)  13,106,997  14,225,539
 WGS Sub-Account...............     (149,792)     (262,505)   1,730,002   1,967,375
 MFS REGATTA GOLD CONTRACTS
 ------------------------------
 CAS Sub-Account...............   (1,520,664)     (867,524)  27,782,739  19,909,649
 CGS Sub-Account...............     (807,653)     (430,369)  16,712,586  10,979,711
 EGS Sub-Account...............      (52,520)      --         5,346,104      --
 FCG Sub-Account...............       (4,598)      --           711,179      --
 GSS Sub-Account...............   (1,296,912)   (1,184,114)  18,082,586  18,784,262
 HYS Sub-Account...............     (451,746)     (272,767)   6,880,080   4,605,818
 MSS Sub-Account...............     (489,853)     (301,191)   8,542,869   6,351,641
 MMS Sub-Account...............   (2,558,367)   (1,116,198)  17,186,041  14,774,386
 RES Sub-Account...............     (124,339)       (1,982)   5,341,160     392,528
 TRS Sub-Account...............   (3,299,751)   (2,659,413)  53,091,748  48,270,556
 UTS Sub-Account...............     (232,457)      (89,318)   3,410,047   2,273,439
 WAA Sub-Account...............      (43,026)         (390)   2,141,041     299,210
 WGR Sub-Account...............     (659,139)     (353,151)  11,421,691   9,182,555
 WGS Sub-Account...............     (510,377)     (446,459)   8,272,858   8,334,019
 WTR Sub-Account...............      (49,609)         (141)   1,170,586     138,126
</TABLE>
 
                                       57
<PAGE>
INDEPENDENT AUDITORS' REPORT
 
To the Participants in Sun Life of Canada (U.S.) Variable Account F
 and the Board of Directors of Sun Life Assurance Company of Canada (U.S.):
 
We have audited the  accompanying statement of condition  of Sun Life of  Canada
(U.S.)  Variable Account F (the "Variable Account") as of December 31, 1995, the
related statement of operations  for the year then  ended and the statements  of
changes  in net  assets for the  years ended  December 31, 1995  and 1994. These
financial statements are the responsibility of management. Our responsibility is
to express an opinion on these financial statements based on our audits.
 
We  conducted  our  audits  in  accordance  with  generally  accepted   auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence  supporting
the amounts and disclosures in the financial statements. Our procedures included
confirmation  with the custodian of securities  held for the Variable Account as
of December 31, 1995. An audit also includes assessing the accounting principles
used and significant  estimates made by  management, as well  as evaluating  the
overall  financial statement presentation. We believe  that our audits provide a
reasonable basis for our opinion.
 
In our  opinion,  such financial  statements  present fairly,  in  all  material
respects,  the financial  position of  the Variable  Account as  of December 31,
1995, the results of its  operations and the changes in  its net assets for  the
respective  stated  periods  in conformity  with  generally  accepted accounting
principles.
 
DELOITTE & TOUCHE LLP
 
Boston, Massachusetts
February 2, 1996
 
                                       58
<PAGE>
SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
(Wholly-owned subsidiary of Sun Life Assurance Company of Canada)
 
BALANCE SHEETS
 
<TABLE>
<CAPTION>
                                                                                       DECEMBER 31,
                                                                              ------------------------------
                                                                                   1995            1994
                                                                              --------------  --------------
                                                                                        (IN 000'S)
<S>                                                                           <C>             <C>
ASSETS
    Bonds                                                                     $    2,846,067  $    2,471,152
    Preferred stock                                                                    1,149               0
    Mortgage loans                                                                 1,066,911       1,120,981
    Investments in subsidiaries                                                      138,282         134,807
    Real estate                                                                       95,574          89,487
    Other invested assets                                                             38,387          26,036
    Policy loans                                                                      38,355          36,584
    Cash                                                                             (20,280)        (11,459)
    Investment income due and accrued                                                 62,719          56,096
    Funds withheld on reinsurance assumed                                            741,091         566,693
    Due from separate accounts                                                       148,675         132,496
    Other assets                                                                      26,349          27,683
                                                                              --------------  --------------
    General account assets                                                         5,183,279       4,650,556
                                                                              --------------  --------------
    Unitized separate account assets                                               5,275,808       4,061,821
    Non-unitized separate account assets                                           2,040,596       1,425,445
                                                                              --------------  --------------
                                                                              $   12,499,683  $   10,137,822
                                                                              --------------  --------------
                                                                              --------------  --------------
LIABILITIES
    Policy reserves                                                           $    1,937,302  $    1,765,326
    Annuity and other deposits                                                     2,290,656       2,277,104
    Policy benefits in process of payment                                              5,884           5,796
    Accrued expenses and taxes                                                        44,114          12,386
    Other liabilities                                                                 36,080          50,087
    Due to parent and affiliates--net                                                  9,498          41,881
    Interest maintenance reserve                                                      25,218          18,140
    Asset valuation reserve                                                           42,099          28,409
                                                                              --------------  --------------
    General account liabilities                                                    4,390,851       4,199,129
                                                                              --------------  --------------
    Unitized separate account liabilities                                          5,275,784       4,057,759
    Non-unitized separate account liabilities                                      2,040,596       1,425,445
                                                                              --------------  --------------
                                                                                  11,707,231       9,682,333
                                                                              --------------  --------------
CAPITAL STOCK AND SURPLUS
    Capital Stock--Par value $1,000:
       Authorized 10,000 shares,
        issued and outstanding 5,900 shares                                            5,900           5,900
    Surplus                                                                          786,552         449,589
                                                                              --------------  --------------
    Total capital stock and surplus                                                  792,452         455,489
                                                                              --------------  --------------
                                                                              $   12,499,683  $   10,137,822
                                                                              --------------  --------------
                                                                              --------------  --------------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS.
 
                                       59
<PAGE>
SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
(Wholly-owned subsidiary of Sun Life Assurance Company of Canada)
STATEMENTS OF OPERATIONS
 
<TABLE>
<CAPTION>
                                                YEARS ENDED DECEMBER 31,
                                           ----------------------------------
                                              1995        1994        1993
                                           ----------  ----------  ----------
 <S>                                       <C>         <C>         <C>
                                                       (IN 000'S)
 INCOME
     Premiums and annuity considerations   $  274,244  $  313,025  $  469,157
     Annuity and other deposit funds          722,327     699,189   1,205,680
     Transfers from separate
      accounts--net                            21,455     102,213         350
     Net investment income                    366,598     337,747     253,496
     Amortization of interest maintenance
      reserve                                     899       3,316       2,703
     Realized losses on investments            (1,434)     (6,166)    (12,403)
     Expense allowance on reinsurance
      ceded                                         0           0       8,475
     Mortality and expense risk charges        60,954      52,338      42,981
     Other income--net                         16,666      33,377      46,102
                                           ----------  ----------  ----------
                                            1,461,709   1,535,039   2,016,541
 BENEFITS AND EXPENSES
     Increase (decrease) in liability for
      annuity and other deposit funds          13,552     (69,542)    894,128
     Increase in policy reserves              171,976     219,334     589,559
     Death, surrender benefits, and
      annuity payments                        189,744     166,889     128,902
     Annuity and other deposit fund
      withdrawals                             531,928     540,352     146,260
     Transfers to non-unitized separate
      account                                 331,403     455,688      28,070
                                           ----------  ----------  ----------
                                            1,238,603   1,312,721   1,786,919
     Operating expenses                        37,492      32,231      24,170
     Commissions                              108,672     150,011     204,016
     Dividends                                 25,722      22,928       8,074
     Taxes, licenses and fees                   4,774       4,649       4,180
                                           ----------  ----------  ----------
                                            1,415,263   1,522,540   2,027,359
                                           ----------  ----------  ----------
     Net income (loss) from operations
      before surplus note interest and
      equity in income of subsidiaries         46,446      12,499     (10,818)
     Surplus note interest                    (31,813)    (31,150)    (26,075)
                                           ----------  ----------  ----------
     Net income (loss) from operations
      before equity in income of
      subsidiaries and federal income tax      14,633     (18,651)    (36,893)
     Equity in income of subsidiaries          59,875      62,629      62,640
     Federal income tax expense               (38,593)    (42,521)    (22,491)
                                           ----------  ----------  ----------
 NET INCOME                                $   35,915  $    1,457  $    3,256
                                           ----------  ----------  ----------
                                           ----------  ----------  ----------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS.
 
                                       60
<PAGE>
SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
(Wholly-owned subsidiary of Sun Life Assurance Company of Canada)
STATEMENTS OF CAPITAL STOCK AND SURPLUS
 
<TABLE>
<CAPTION>
                                                                 YEARS ENDED DECEMBER 31,
                                                            ----------------------------------
                                                               1995        1994        1993
                                                            ----------  ----------  ----------
                                                                        (IN 000'S)
 
<S>                                                         <C>         <C>         <C>
CAPITAL STOCK                                               $    5,900  $    5,900  $    5,900
PAID-IN SURPLUS                                                199,355     199,355     199,355
SURPLUS NOTES
    Balance, beginning of year                                 335,000     335,000     265,000
    Issued during year                                         315,000           0      70,000
                                                            ----------  ----------  ----------
    Balance, end of year                                       650,000     335,000     335,000
                                                            ----------  ----------  ----------
UNASSIGNED SURPLUS
    Balance, beginning of year                                 (84,766)    (57,067)    (57,485)
    Net income                                                  35,915       1,457       3,256
    Writedown of goodwill                                            0     (18,397)          0
    Change in non-admitted assets                               (2,270)     (1,485)       (191)
    Unrealized gains (losses) on real estate                     2,009        (671)     (4,440)
    Change in and transfers of separate account
     surplus                                                        (1)       (227)        117
    Change in asset valuation reserve                          (13,690)     (8,376)      1,676
                                                            ----------  ----------  ----------
    Balance, end of year                                       (62,803)    (84,766)    (57,067)
                                                            ----------  ----------  ----------
TOTAL SURPLUS                                                  786,552     449,589     477,288
                                                            ----------  ----------  ----------
TOTAL CAPITAL STOCK AND SURPLUS                             $  792,452  $  455,489  $  483,188
                                                            ----------  ----------  ----------
                                                            ----------  ----------  ----------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS.
 
                                       61
<PAGE>
SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
(Wholly-owned subsidiary of Sun Life Assurance Company of Canada)
STATEMENTS OF CASH FLOWS
 
<TABLE>
<CAPTION>
                                                  YEARS ENDED DECEMBER 31,
                                            -------------------------------------
                                               1995         1994         1993
                                            -----------  -----------  -----------
 <S>                                        <C>          <C>          <C>
                                                         (IN 000'S)
 Cash flows from operating activities:
     Net income (loss) from operations
      before surplus note interest and
      equity in income of subsidiaries      $    46,446  $    12,499  $   (10,818)
     Adjustments to reconcile net income
      (loss) from operations to net cash
      provided by (used in) operating
      activities:
     Increase (decrease) in liability for
      annuity and other deposit funds            13,552      (69,542)     894,128
     Increase in policy reserves                171,976      219,334      589,559
     Increase in investment income due and
      accrued                                    (6,623)      (2,736)     (21,746)
     Net accrual and amortization of
      discount and premium on investments         3,127        7,272        5,911
     Realized losses on investments               1,434        6,166       12,403
     Change in non-admitted assets               (2,270)      (1,485)        (191)
     Change in funds withheld on
      reinsurance                              (174,398)    (199,826)  (1,087,862)
     Other                                      (11,160)     (71,746)      24,953
                                            -----------  -----------  -----------
 Net cash provided by (used in) operating
   activities                                    42,084     (100,064)     406,337
                                            -----------  -----------  -----------
 Cash flows from investing activities:
     Proceeds from sale and maturity of
      investments                             1,705,685    1,596,851    1,173,345
     Purchase of investments                 (1,820,843)  (1,491,159)  (1,618,587)
     Net change in short-term investments      (254,897)     (20,543)     (38,782)
     Investment in subsidiaries                  (6,000)      (4,894)     (15,250)
     Dividends from subsidiaries                 37,927       37,444       42,520
                                            -----------  -----------  -----------
 Net cash provided by (used in) investing
   activities                                  (338,128)     117,699     (456,754)
                                            -----------  -----------  -----------
 Cash flows from financing activities:
     Issue of surplus notes                     315,000            0       70,000
     Payment of interest on surplus notes       (31,813)     (31,150)     (26,075)
     Repayment of seed capital                    4,036            0            0
                                            -----------  -----------  -----------
 Net cash provided by (used in) financing
   activities                                   287,223      (31,150)      43,925
                                            -----------  -----------  -----------
 Decrease in cash during the year                (8,821)     (13,515)      (6,492)
 Cash balance, beginning of year                (11,459)       2,056        8,548
                                            -----------  -----------  -----------
 Cash balance, end of year                  $   (20,280) $   (11,459) $     2,056
                                            -----------  -----------  -----------
                                            -----------  -----------  -----------
</TABLE>
 
                       SEE NOTES TO FINANCIAL STATEMENTS.
 
                                       62
<PAGE>
SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
(Wholly-owned subsidiary of Sun Life Assurance Company of Canada)
 
NOTES TO FINANCIAL STATEMENTS
YEARS ENDED DECEMBER 31, 1995, 1994, AND 1993
 
1.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:
 
GENERAL--
 
Sun  Life Assurance Company of Canada (U.S.)  (the Company) is incorporated as a
life insurance company and is currently engaged in the sale of individual  fixed
and  variable annuities,  group fixed and  variable annuities  and group pension
contracts. The Company  also underwrites  a block of  individual life  insurance
business  through a  reinsurance contract  with its  parent. Sun  Life Assurance
Company of Canada (the parent company)  is a mutual life insurance company.  The
Company,  which is  domiciled in the  State of Delaware,  prepares its financial
statements in  accordance  with  statutory accounting  practices  prescribed  or
permitted  by the State  of Delaware Insurance  Department. Statutory accounting
practices are  considered to  be generally  accepted accounting  principles  for
mutual  insurance companies  and subsidiaries of  mutuals. Prescribed accounting
practices include  a variety  of  publications of  the National  Association  of
Insurance  Commissioners (NAIC), as well as  state laws, regulations and general
administrative rules. Permitted  accounting practices  encompass all  accounting
practices  not so prescribed. The permitted  accounting practices adopted by the
Company are  not  material  to  the financial  statements.  Preparation  of  the
financial   statements  requires  management  to   make  certain  estimates  and
assumptions.
 
Assets in the balance sheets are stated at values prescribed or permitted to  be
reported by state regulatory authorities. Bonds are carried at cost adjusted for
amortization  of premium or accrual of discount. Investments in subsidiaries are
carried on the equity  basis. Mortgage loans acquired  at a premium or  discount
are  carried at amortized values and other  mortgage loans at the amounts of the
unpaid balances. Real  estate investments are  carried at the  lower of cost  or
appraised  value,  adjusted  for  accumulated  depreciation,  less encumbrances.
Depreciation of buildings and improvements is calculated using the straight line
method over the  estimated useful  life of the  property. For  life and  annuity
contracts,  premiums are recognized as revenues  over the premium paying period,
whereas commissions  and  other  costs  applicable to  the  acquisition  of  new
business  are  charged  to  operations  as  incurred.  Furniture  and  equipment
acquisitions are capitalized  but treated as  nonadmitted assets. Furniture  and
equipment  depreciation is calculated  on a straight line  basis over the useful
life of the assets.
 
MANAGEMENT AND SERVICE CONTRACTS--
 
The Company has  an agreement with  its parent company  which provides that  the
parent company will furnish, as requested, personnel as well as certain services
and  facilities on  a cost  reimbursement basis.  Expenses under  this agreement
amounted  to  approximately  $20,293,000  in  1995,  $18,452,000  in  1994,  and
$13,883,000 in 1993.
 
REINSURANCE--
 
The Company has agreements with the parent company which provide that the parent
company  will  reinsure the  mortality risks  of  the individual  life insurance
contracts sold by the Company. Under  these agreements basic death benefits  and
supplementary  benefits  are  reinsured on  a  yearly renewable  term  basis and
coinsurance basis, respectively. Reinsurance transactions under these agreements
had the effect of decreasing income from operations by approximately $2,184,000,
$2,138,000, and $1,046,000,  for the  years ended  December 31,  1995, 1994  and
1993, respectively.
 
Effective January 1, 1991, the Company entered into an agreement with the parent
company  under  which 100%  of  certain fixed  annuity  contracts issued  by the
Company  were  reinsured.  Effective  December  31,  1993  this  agreement   was
terminated.  This agreement had the effect  of decreasing income from operations
by approximately $9,930,000 in 1993.
 
                                       63
<PAGE>
SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
(Wholly-owned subsidiary of Sun Life Assurance Company of Canada)
 
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
 
1.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED):
Effective January 1, 1991, the Company entered into an agreement with the parent
company under which certain  individual life insurance  contracts issued by  the
parent  company were reinsured by the Company  on a 90% coinsurance basis. Also,
effective January 1, 1991, the Company entered into an agreement with the parent
company which provides that the parent company will reinsure the mortality risks
in excess of  $500,000 per policy  for the individual  life insurance  contracts
assumed  by the Company in the reinsurance agreement described above. Such death
benefits are reinsured on  a yearly renewable term  basis. These agreements  had
the  effect of increasing income from operations by approximately $11,821,000 in
1995, and decreasing  income by approximately  $29,188,000, and $43,591,000  for
the years ended December 31, 1994 and 1993, respectively.
 
The  life reinsurance assumed agreement requires the reinsurer to withhold funds
in amounts equal to the reserves assumed.
 
The following are summarized pro-forma results of operations of the Company  for
the  years  ended  December  31,  1995,  1994  and  1993  before  the  effect of
reinsurance transactions with the parent company.
 
<TABLE>
<CAPTION>
                                                                       YEARS ENDED DECEMBER 31,
                                                               ----------------------------------------
                                                                   1995          1994          1993
                                                               ------------  ------------  ------------
                                                                              (IN 000'S)
<S>                                                            <C>           <C>           <C>
Income:
    Premiums, annuity deposits and other revenues              $    890,560  $    962,320  $    762,553
    Net investment income and realized gains (losses)               306,893       304,155       293,557
                                                               ------------  ------------  ------------
    Subtotal                                                      1,197,453     1,266,475     1,056,110
                                                               ------------  ------------  ------------
Benefits and Expenses:
    Policyholder benefits                                         1,030,342     1,092,192       926,827
    Other expenses                                                  130,302       130,457        85,575
                                                               ------------  ------------  ------------
    Subtotal                                                      1,160,644     1,222,649     1,012,402
                                                               ------------  ------------  ------------
Income from operations                                         $     36,809  $     43,826  $     43,708
                                                               ------------  ------------  ------------
                                                               ------------  ------------  ------------
</TABLE>
 
The  Company  has  an  agreement  with  an  unrelated  company  which   provides
reinsurance  of  certain  individual  life  insurance  contracts  on  a modified
coinsurance basis  and under  which  all deficiency  reserves related  to  these
contracts  are reinsured. Reinsurance transactions  under this agreement had the
effect of decreasing income  from operations by  $1,599,000 in 1995,  increasing
income  from  operations  by  $1,854,000  in  1994  and  decreasing  income from
operations by $390,000 in 1993.
 
SEPARATE ACCOUNTS--
 
The Company has  established unitized  separate accounts  applicable to  various
classes  of contracts providing for variable benefits. Contracts for which funds
are invested in separate accounts include variable life insurance and individual
and group qualified and non-qualified variable annuity contracts.
 
Assets and liabilities of the  separate accounts, representing net deposits  and
accumulated net investment earnings less fees, held primarily for the benefit of
contract  holders are  shown as separate  captions in  the financial statements.
Assets held in the separate accounts are carried at market values.
 
                                       64
<PAGE>
SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
(Wholly-owned subsidiary of Sun Life Assurance Company of Canada)
 
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
 
1.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED):
Deposits to all separate accounts are reported as increases in separate  account
liabilities and are not reported as revenues. Mortality and expense risk charges
and  surrender fees incurred by the separate  accounts are included in income of
the Company.
 
The  Company  has  established  a  non-unitized  separate  account  for  amounts
allocated  to the fixed  portion of certain  combination fixed/variable deferred
annuity contracts. The  assets of  this account  are available  to fund  general
account liabilities and general account assets are available to fund liabilities
of this account.
 
Any  difference between the  assets and liabilities of  the separate accounts is
treated as payable  to or receivable  from the general  account of the  Company.
Amounts  payable to the general account of the Company were $148,675,000 in 1995
and $132,496,000 in 1994.
 
OTHER--
 
Income on investments is recognized on the accrual method.
 
The reserves for  life insurance  and annuity contracts,  developed by  accepted
actuarial  methods,  have  been  established  and  maintained  on  the  basis of
published mortality tables  using assumed interest  rates and valuation  methods
that  will  provide reserves  at least  as great  as those  required by  law and
contract provisions.
 
Net income reported in the Company's statutory Annual Statement differs from net
income reported in these financial  statements. Dividends from subsidiaries  are
included  in  income  and  undistributed  income  (losses)  of  subsidiaries are
included as  gains  (losses)  in  unassigned surplus  in  the  statutory  Annual
Statement. Both the dividends and the undistributed income (losses) are included
in net income in these financial statements.
 
Investments  in non-insurance  subsidiaries are  carried at  their stockholders'
equity value,  determined  in  accordance  with  generally  accepted  accounting
principles. Investments in insurance subsidiaries are carried at their statutory
surplus values.
 
Certain  reclassifications  have  been  made  in  the  1993  and  1994 financial
statements to conform to the classifications used in 1995.
 
2.  INVESTMENTS IN SUBSIDIARIES:
The Company  owns  all of  the  outstanding shares  of  Massachusetts  Financial
Services  Company (MFS), Sun Life Insurance and Annuity Company of New York (Sun
Life (N.Y.)), Sun  Investment Services Company  (Sunesco), Sun Benefit  Services
Company,  Inc. (Sunbesco), Massachusetts Casualty  Insurance Company (MCIC), New
London Trust, F.S.B. (NLT),  Sun Capital Advisers, Inc.  (Sun Capital), and  Sun
Life Finance Corporation (Sunfinco).
 
Effective  January  1,  1994, NLT  acquired  all  of the  outstanding  shares of
Danielson Federal Savings and Loan Association of Danielson, Connecticut.  These
two  banks have been merged into a newly formed federally chartered savings bank
now called New London Trust, F.S.B.
 
MFS, a registered investment adviser, serves as investment adviser to the mutual
funds in the MFS family of funds and certain mutual funds and separate  accounts
established  by  the  Company,  and  the  MFS  Asset  Management  Group provides
investment advice to substantial private clients.
 
Clarendon Insurance Agency, Inc.,  a wholly-owned subsidiary  of MFS, serves  as
the distributor of certain variable contracts issued by the Company and Sun Life
(N.Y.).  Sun Life (N.Y.) is engaged in the sale of individual fixed and variable
annuity contracts and group life and disability insurance contracts in the state
of
 
                                       65
<PAGE>
SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
(Wholly-owned subsidiary of Sun Life Assurance Company of Canada)
 
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
 
2.  INVESTMENTS IN SUBSIDIARIES (CONTINUED):
New York. Sunesco is a registered investment adviser and broker-dealer. MCIC  is
a  life  insurance  company  which  issues  only  individual  disability  income
policies. Sun Capital, a registered  investment adviser, Sunfinco, and  Sunbesco
are currently inactive.
 
In  1994, the  Company reduced  its carrying value  of MCIC  by $18,397,000, the
unamortized amount of  goodwill. The  reduction was  accounted for  as a  direct
charge to surplus.
 
During  1995, 1994  and 1993, the  Company contributed capital  in the following
amounts to its subsidiaries:
 
<TABLE>
<CAPTION>
                                              1995         1994         1993
                                           ----------   ----------   ----------
<S>                                        <C>          <C>          <C>
MCIC                                       $6,000,000   $6,000,000   $6,000,000
Sun Capital                                         0            0      250,000
New London Trust                                    0            0    9,000,000
</TABLE>
 
Summarized combined financial  information of the  Company's subsidiaries as  of
December 31, 1995, 1994 and 1993 and for the years then ended, follows:
 
<TABLE>
<CAPTION>
                                                    DECEMBER 31,
                                           -------------------------------
                                             1995       1994       1993
                                           ---------  ---------  ---------
                                                     (IN 000'S)
 <S>                                       <C>        <C>        <C>
 Intangible assets                         $  12,174  $  13,485  $  14,891
 Other assets, net of liabilities            126,108    121,321    112,332
                                           ---------  ---------  ---------
 Total net assets                          $ 138,282  $ 134,806  $ 127,223
                                           ---------  ---------  ---------
                                           ---------  ---------  ---------
 Total income                              $ 570,794  $ 495,097  $ 424,324
 Operating expenses                         (504,070)  (425,891)  (355,679)
 Income tax expense                          (31,193)   (29,374)   (24,507)
                                           ---------  ---------  ---------
 Net income                                $  35,531  $  39,832  $  44,138
                                           ---------  ---------  ---------
                                           ---------  ---------  ---------
</TABLE>
 
3.  STOCK, SURPLUS NOTES, CONTRIBUTIONS AND NOTE RECEIVABLE:
The  Company has issued surplus  notes to its parent  of $335,000,000 during the
years 1982 through  1993 at interest  rates between 7.25%  and 10%. The  Company
subsequently  repaid all  principal and  interest associated  with these surplus
notes on January 16, 1996. On December 19, 1995 the Company issued surplus notes
totalling $315,000,000 to an  affiliate, Sun Canada  Financial Co., at  interest
rates  between 5.75% and 7.25%. Of these  notes, $157,500,000 will mature in the
year 2007, and  $157,500,000 will  mature in the  year 2015.  Interest on  these
notes  is payable  semi-annually. Principal  and interest  on surplus  notes are
payable only to  the extent  that the  Company meets  specified requirements  as
regards  free surplus exclusive of the principal amount and accrued interest, if
any, on these notes; and, in the case of principal repayments, with the  consent
of the Delaware Insurance Commissioner. Interest payments require the consent of
the  Delaware  Insurance  Commissioner  after  December  31,  1993.  Payment  of
principal and interest on the notes issued in 1995 also requires the consent  of
the Canadian Office of the Superintendent of Financial Institutions. The Company
expensed  $31,813,000,  $31,150,000 and  $26,075,000 in  respect of  interest on
surplus notes for the years 1995,  1994 and 1993, respectively. On December  19,
1995,  the parent borrowed $120,000,000 at 5.6  % through a short term note from
the Company maturing on  January 16, 1996. The  note, which is classified  under
short-term  bonds at  December 31,  1995, was  repaid in  full by  the parent at
maturity.
 
                                       66
<PAGE>
SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
(Wholly-owned subsidiary of Sun Life Assurance Company of Canada)
 
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
 
4.  BONDS:
The amortized cost and estimated market value of investments in debt  securities
are as follows:
 
<TABLE>
<CAPTION>
                                                         DECEMBER 31, 1995
                                          ------------------------------------------------
                                                        GROSS        GROSS      ESTIMATED
                                          AMORTIZED   UNREALIZED   UNREALIZED     MARKET
                                             COST       GAINS        LOSSES       VALUE
                                          ----------  ----------   ----------   ----------
<S>                                       <C>         <C>          <C>          <C>
                                                             (IN 000'S)
Long-term bonds:
    United States government and
     government agencies and authorities  $  467,597   $ 22,783     $   443     $  489,937
    States, provinces and political
     subdivisions                              2,252         81           0          2,333
    Foreign governments                       38,303      4,551           6         42,848
    Public utilities                         513,704     45,466         203        558,967
    Transportation                           215,786     22,794       2,221        236,359
    Finance                                  225,074     13,846          84        238,836
    All other corporate bonds              1,045,745     67,371       7,415      1,105,701
                                          ----------  ----------   ----------   ----------
        Total long-term bonds              2,508,461    176,892      10,372      2,674,981
Short-term bonds:
    U.S. Treasury Bills, bankers
     acceptances and commercial paper        337,606          0           0        337,606
                                          ----------  ----------   ----------   ----------
                                          $2,846,067   $176,892     $10,372     $3,012,587
                                          ----------  ----------   ----------   ----------
                                          ----------  ----------   ----------   ----------
</TABLE>
 
<TABLE>
<CAPTION>
                                                         DECEMBER 31, 1994
                                          -----------------------------------------------
                                                        GROSS       GROSS      ESTIMATED
                                          AMORTIZED   UNREALIZED  UNREALIZED     MARKET
                                             COST       GAINS       LOSSES       VALUE
                                          ----------  ---------   ----------   ----------
<S>                                       <C>         <C>         <C>          <C>
                                                            (IN 000'S)
Long-term bonds:
    United States government and
     government agencies and authorities  $  444,100   $ 5,017     $11,010     $  438,107
    States, provinces and political
     subdivisions                                252         0          17            235
    Foreign governments                       20,965       147         187         20,925
    Public utilities                         458,839    11,414      11,619        458,633
    Transportation                           215,478     5,099       9,444        211,133
    Finance                                  193,355     3,734       4,010        193,080
    All other corporate bonds              1,055,455    15,785      31,171      1,040,069
                                          ----------  ---------   ----------   ----------
        Total long-term bonds              2,388,444    41,196      67,458      2,362,182
Short-term bonds:
    U.S. Treasury Bills, bankers
     acceptances and commercial paper         82,708         0           0         82,708
                                          ----------  ---------   ----------   ----------
                                          $2,471,152   $41,196     $67,458     $2,444,890
                                          ----------  ---------   ----------   ----------
                                          ----------  ---------   ----------   ----------
</TABLE>
 
                                       67
<PAGE>
SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
(Wholly-owned subsidiary of Sun Life Assurance Company of Canada)
 
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
 
4.  BONDS (CONTINUED):
The  amortized cost and estimated market value of bonds at December 31, 1995 and
1994 are shown below  by contractual maturity.  Expected maturities will  differ
from  contractual maturities  because borrowers  may have  the right  to call or
prepay obligations with or without call or prepayment penalties.
 
<TABLE>
<CAPTION>
                                             DECEMBER 31, 1995
                                           ----------------------
                                                       ESTIMATED
                                           AMORTIZED      FAIR
                                              COST       VALUE
                                           ----------  ----------
 <S>                                       <C>         <C>
                                                 (IN 000'S)
 Maturities are:
     Due in one year or less               $  678,775  $  681,119
     Due after one year through five
      years                                   844,446     866,230
     Due after five years through ten
      years                                   256,552     269,549
     Due after ten years                      884,187   1,000,908
                                           ----------  ----------
                                            2,663,960   2,817,806
     Mortgage-backed securities               182,107     194,781
                                           ----------  ----------
                                           $2,846,067  $3,012,587
                                           ----------  ----------
                                           ----------  ----------
</TABLE>
 
<TABLE>
<CAPTION>
                                             DECEMBER 31, 1994
                                           ----------------------
                                                       ESTIMATED
                                           AMORTIZED      FAIR
                                              COST       VALUE
                                           ----------  ----------
 <S>                                       <C>         <C>
                                                 (IN 000'S)
 Maturities are:
     Due in one year or less               $  209,875  $  209,527
     Due after one year through five
      years                                   953,222     930,578
     Due after five years through ten
      years                                   319,858     311,360
     Due after ten years                      877,062     885,462
                                           ----------  ----------
                                            2,360,017   2,336,927
     Mortgage-backed securities               111,135     107,963
                                           ----------  ----------
                                           $2,471,152  $2,444,890
                                           ----------  ----------
                                           ----------  ----------
</TABLE>
 
Proceeds from sales  of investments in  debt securities during  1995, 1994,  and
1993  were $1,510,553,000,  $1,390,974,000, and  $911,644,000, gross  gains were
$24,757,000, $15,025,000,  and $43,674,000  and  gross losses  were  $5,742,000,
$30,041,000 and $687,000, respectively.
 
Long-term  bonds at  December 31,  1995 and  1994 included  $20,000,000 of bonds
issued to the  Company by a  subsidiary company, MFS,  during 1987. These  bonds
will mature in 2000.
 
Bonds  included above  with an  amortized cost  of approximately  $2,059,000 and
$1,561,000 at December  31, 1995 and  1994, respectively, were  on deposit  with
governmental authorities as required by law.
 
At  year end 1995, the Company  had outstanding mortgage-backed securities (MBS)
forward commitments  amounting to  a  par value  of  $137,675,000 to  be  funded
through the sale of certain short-term securities shown above.
 
                                       68
<PAGE>
SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
(Wholly-owned subsidiary of Sun Life Assurance Company of Canada)
 
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
 
5.  SECURITIES LENDING:
The  Company has  a securities  lending program  operated on  its behalf  by the
Company's primary  custodian,  Chemical Bank  of  New York.  The  custodian  has
indemnified  the Company against losses arising from this program. The total par
value of securities out on loan was $250,729,000 at December 31, 1995.
 
6.  MORTGAGE LOANS:
The Company invests  in commercial  first mortgage loans  throughout the  United
States.  The  Company  monitors  the  condition of  the  mortgage  loans  in its
portfolio. In those  cases where mortgages  have been restructured,  appropriate
provisions  have been made. In those cases where, in management's judgement, the
mortgage loans' values are impaired, appropriate losses are recorded.
 
The following table shows the geographic distribution of the mortgage portfolio.
 
<TABLE>
<CAPTION>
                                                DECEMBER 31,
                                           -----------------------
                                              1995        1994
                                           ----------  -----------
                                                 (IN 000'S)
 <S>                                       <C>         <C>
 California                                $  153,811   $  131,953
 Massachusetts                                 83,999      101,932
 Pennsylvania                                 141,468      136,778
 Ohio                                          83,915       79,478
 Washington                                    91,900       90,422
 Michigan                                      69,125       75,592
 New York                                      81,480       93,178
 All other                                    361,213      411,648
                                           ----------  -----------
                                           $1,066,911   $1,120,981
                                           ----------  -----------
                                           ----------  -----------
</TABLE>
 
The Company has restructured mortgage loans totalling $49,846,000, against which
there are provisions of $8,799,000 at December 31, 1995.
 
The Company  has made  commitments of  mortgage loans  on real  estate into  the
future. The outstanding commitments for these mortgages amount to $13,100,000 at
December 31, 1995.
 
                                       69
<PAGE>
SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
(Wholly-owned subsidiary of Sun Life Assurance Company of Canada)
 
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
 
7.  INVESTMENTS--GAINS AND LOSSES:
 
<TABLE>
<CAPTION>
                                            YEARS ENDED DECEMBER 31,
                                           --------------------------
                                            1995     1994      1993
                                           -------  -------  --------
                                                   (IN 000'S)
 <S>                                       <C>      <C>      <C>
 Net realized gains (losses) (pre-tax):
 Bonds                                     $(2,300) $     0  $      0
 Mortgage loans                                418   (5,689)   (9,975)
 Stocks                                          0        0       445
 Real estate                                   391     (334)   (2,873)
 Other assets                                   57     (143)        0
                                           -------  -------  --------
                                           $(1,434) $(6,166) $(12,403)
                                           -------  -------  --------
                                           -------  -------  --------
 Changes in unrealized gains (losses):
 Bonds                                     $     0  $     0  $     84
 Mortgage loans                             (1,574)       0         0
 Real estate                                 3,583     (671)   (4,113)
 Stocks                                          0        0      (411)
                                           -------  -------  --------
                                           $ 2,009  $  (671) $ (4,440)
                                           -------  -------  --------
                                           -------  -------  --------
</TABLE>
 
Realized capital gains and losses on bonds and mortgages which relate to changes
in  levels  of  interest  rate  risk are  charged  or  credited  to  an interest
maintenance reserve and  amortized into  income over  the remaining  contractual
life  of the security  sold. The realized  capital gains and  losses credited or
charged to the  interest maintenance  reserve were  a credit  of $12,714,000  in
1995,  a charge of $14,070,000 in 1994 and  a credit of $40,993,000 in 1993. All
gains and losses are net of applicable taxes.
 
8.  INVESTMENT INCOME:
Net investment income consisted of:
 
<TABLE>
<CAPTION>
                                             YEARS ENDED DECEMBER 31,
                                           ----------------------------
                                             1995      1994      1993
                                           --------  --------  --------
                                                    (IN 000'S)
 <S>                                       <C>       <C>       <C>
 Interest income from bonds                $205,445  $200,339  $204,405
 Interest income from mortgage loans         99,753   106,347    99,790
 Interest income from policy loans            2,777     2,670     2,503
 Real estate investment income               10,693     8,649     8,593
 Interest income on funds withheld           57,373    30,741    19,420
 Other                                        2,627     1,418       645
                                           --------  --------  --------
     Gross investment income                378,668   350,164   335,356
 Investment expenses                         12,070    12,417    12,679
 Interest expense on funds withheld               0         0    69,181
                                           --------  --------  --------
                                           $366,598  $337,747  $253,496
                                           --------  --------  --------
                                           --------  --------  --------
</TABLE>
 
                                       70
<PAGE>
SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
(Wholly-owned subsidiary of Sun Life Assurance Company of Canada)
 
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
 
9.  DERIVATIVES:
The Company uses derivative instruments  for interest risk management  purposes,
including  hedges  against  specific  interest rate  risk  and  to  minimize the
Company's exposure  to fluctuations  in  interest rates.  The Company's  use  of
derivatives  has  included  U.S. Treasury  futures,  conventional  interest rate
swaps, and forward spread lock interest rate swaps.
 
In the case of interest rate futures, gains or losses on contracts that  qualify
as  hedges are  deferred until  the earliest  of the  completion of  the hedging
transaction, determination that the  transaction will no  longer take place,  or
determination  that the  hedge is  no longer  effective. Upon  completion of the
hedge, gains or losses are deferred in IMR and amortized over the remaining life
of the hedged  assets. At  December 31, 1995,  there were  no futures  contracts
outstanding.
 
In  the case of interest  rate and foreign currency  swap agreements and forward
spread lock interest rate swap agreements,  gains or losses on terminated  swaps
are  deferred in IMR and amortized over the shorter of the remaining life of the
hedged asset or the remaining term of the swap contract. The net differential to
be paid or received on interest rate swaps is recorded monthly as interest rates
change.
 
<TABLE>
<CAPTION>
                                                         SWAPS OUTSTANDING
                                                        AT DECEMBER 31, 1995
                                                  --------------------------------
                                                      NOTIONAL        MARKET VALUE
                                                  PRINCIPAL AMOUNTS   OF POSITIONS
                                                  -----------------   ------------
                                                             (IN 000'S)
 <S>                                              <C>                 <C>
 Conventional interest rate swaps                      $367,000          $3,275
 Foreign currency swap                                    2,745             290
 Forward spread lock swaps                             $ 50,000          $  112
</TABLE>
 
The market values of interest rate swaps and forward spread lock agreements  are
primarily  obtained from dealer quotes. The market value is the estimated amount
that the  Company would  receive or  pay  on termination  or sale,  taking  into
account  current interest rates and the  current creditworthiness of the counter
parties. The  Company  is exposed  to  potential credit  loss  in the  event  of
non-performance  by  counterparties.  The  counterparties  are  major  financial
institutions and management believes that  the risk of incurring losses  related
to credit risk is remote.
 
10. LEVERAGED LEASES:
The  Company is a lessor in a  leveraged lease agreement entered into on October
21, 1994 under which equipment having an estimated economic life of 25-40  years
was leased for a term of 9.75 years. The Company's equity investment represented
22.9%  of the purchase price of the equipment. The balance of the purchase price
was furnished by third party long-term debt financing, secured by the  equipment
and non-recourse to the Company. At the end of the lease term, the Master Lessee
may exercise a fixed price purchase option to purchase the equipment.
 
                                       71
<PAGE>
SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
(Wholly-owned subsidiary of Sun Life Assurance Company of Canada)
 
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
 
10. LEVERAGED LEASES (CONTINUED):
The  Company's net investment  in leveraged leases is  composed of the following
elements:
 
<TABLE>
<CAPTION>
                                                           YEARS ENDED DECEMBER
                                                                   31,
                                                           --------------------
                                                             1995       1994
                                                           ---------  ---------
                                                                (IN 000'S)
 <S>                                                       <C>        <C>
 Lease contracts receivable                                $ 111,611  $ 121,716
 Less non-recourse debt                                     (111,594)  (121,699)
                                                           ---------  ---------
                                                                  17         17
 Estimated residual value of leased assets                    41,150     41,150
 Less unearned and deferred income                           (13,132)   (15,292)
                                                           ---------  ---------
 Investment in leveraged leases                               28,035     25,875
 Less fees                                                      (213)      (237)
                                                           ---------  ---------
 Net investment in leveraged leases                        $  27,822  $  25,638
                                                           ---------  ---------
                                                           ---------  ---------
</TABLE>
 
The net investment is  classified as other invested  assets in the  accompanying
balance sheets.
 
11. WITHDRAWAL CHARACTERISTICS OF ANNUITY ACTUARIAL RESERVES AND DEPOSIT
LIABILITIES:
Withdrawal  characteristics  of  general account  and  separate  account annuity
reserves and deposits:
 
<TABLE>
<CAPTION>
                                                             DECEMBER 31, 1995
                                                           ----------------------
                                                             AMOUNT    % OF TOTAL
                                                           ----------  ----------
                                                                 (IN 000'S)
 <S>                                                       <C>         <C>
 Subject to discretionary withdrawal--with adjustment
     --with market value adjustment                        $3,796,596      36.36%
     --at book value less surrender charges (surrender
      charge >5%)                                           4,066,126      38.94
     --at book value (minimal or no charge or adjustment)   1,278,215      12.24
 Not subject to discretionary withdrawal provision          1,301,259      12.46
                                                           ----------  ----------
 Total annuity actuarial reserves and deposit liabilities  $10,442,196    100.00%
                                                           ----------  ----------
                                                           ----------  ----------
</TABLE>
 
<TABLE>
<CAPTION>
                                                             DECEMBER 31, 1994
                                                           ----------------------
                                                             AMOUNT    % OF TOTAL
                                                           ----------  ----------
                                                                 (IN 000'S)
 <S>                                                       <C>         <C>
 Subject to discretionary withdrawal--with adjustment
     -- with market value adjustment                       $3,083,623      35.98%
     -- at book value less surrender charges (surrender
      charge > 5%)                                          2,915,460      34.02
     -- at book value (minimal or no charge or
      adjustment)                                           1,252,843      14.62
 Not subject to discretionary withdrawal provision          1,318,092      15.38
                                                           ----------  ----------
 Total annuity actuarial reserves and deposit liabilities  $8,570,018     100.00%
                                                           ----------  ----------
                                                           ----------  ----------
</TABLE>
 
12. RETIREMENT PLANS:
The Company participates with its  parent company in a non-contributory  defined
benefit  pension plan covering essentially all employees. The benefits are based
on years of service and compensation.
 
                                       72
<PAGE>
SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
(Wholly-owned subsidiary of Sun Life Assurance Company of Canada)
 
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
 
12. RETIREMENT PLANS (CONTINUED):
The funding policy  for the pension  plan is  to contribute an  amount which  at
least satisfies the minimum amount required by ERISA. The Company is charged for
its  share of the pension cost based upon its covered participants. Pension plan
assets consist principally of  a variable accumulation fund  contract held in  a
separate account of the parent company.
 
On  January  1,  1994, the  Company  adopted Statement  of  Financial Accounting
Standards No.  87, which  is in  accordance with  generally accepted  accounting
principles.
 
The  following table sets forth the funded  status for the pension plan (for the
parent, Sun Life (U.S.), Sun Life (N.Y.)  and Sunesco) at December 31, 1995  and
1994:
 
<TABLE>
<CAPTION>
                                                           TOTAL PENSION PLAN
                                                           ------------------
                                                             1995      1994
                                                           --------  --------
                                                               (IN 000'S)
 <S>                                                       <C>       <C>
 Actuarial present value of benefit obligations:
 Vested benefit obligation                                 $(40,949) $(38,157)
 Accumulated benefit obligation                             (42,452)  (39,686)
                                                           --------  --------
                                                           --------  --------
 Projected benefit obligation for service rendered to
  date                                                     $(60,885) $(53,494)
 Plan assets at fair value                                  117,178   101,833
                                                           --------  --------
 Difference between plan assets and projected benefit
  obligation                                                 56,293    48,339
 Unrecognized net gain from past experience different
  from that assumed and effects of changes in assumptions    (9,016)   (1,238)
 Unrecognized net asset at January 1, 1994, being
  recognized over 17 years                                  (30,842)  (32,898)
                                                           --------  --------
 Prepaid pension cost included in other assets             $ 16,435  $ 14,203
                                                           --------  --------
                                                           --------  --------
</TABLE>
 
The components of the 1995 and 1994 pension cost for the pension plan were:
 
<TABLE>
<CAPTION>
                                                             TOTAL PENSION
                                                                 PLAN
                                                           -----------------
                                                             1995     1994
                                                           --------  -------
                                                              (IN 000'S)
 <S>                                                       <C>       <C>
 Service cost                                              $  3,389  $ 2,847
 Interest cost                                                4,050    3,770
 Actual return on plan assets                               (16,388)  (8,294)
 Net amortization and deferral                                6,715     (818)
                                                           --------  -------
 Net pension income                                        $ (2,234) $(2,495)
                                                           --------  -------
                                                           --------  -------
</TABLE>
 
The Company's share of the group's accrued pension cost at December 31, 1995 and
1994  was  $420,000  and  $417,000, respectively.  The  Company's  share  of net
periodic pension cost was $3,000 and $417,000, respectively.
 
The discount rate  and rate of  increase in future  compensation levels used  in
determining the actuarial present value of the projected benefit obligation were
7.5% and 4.5%, respectively. The expected long-term rate of return on assets was
7.5%.
 
                                       73
<PAGE>
SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
(Wholly-owned subsidiary of Sun Life Assurance Company of Canada)
 
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
 
12. RETIREMENT PLANS (CONTINUED):
The Company also participates with its parent and certain affiliates in a 401(k)
savings  plan for  which substantially all  employees are  eligible. The Company
matches, up to specified amounts, employees' contributions to the plan. Employer
contributions were $185,000, $152,000 and $124,000 for the years ended  December
31, 1995, 1994, and 1993, respectively.
 
13. OTHER POST-RETIREMENT BENEFIT PLANS:
In addition to pension benefits the Company provides certain health, dental, and
life  insurance benefits ("post-retirement benefits")  for retired employees and
dependents. Substantially all employees may  become eligible for these  benefits
if  they reach normal  retirement age while  working for the  Company, or retire
early upon satisfying an  alternate age plus  service condition. Life  insurance
benefits are generally set at a fixed amount.
 
Effective January 1, 1993, the Company adopted Statement of Financial Accounting
Standards  (SFAS) No.  106, "Employers  Accounting for  Post-retirement Benefits
other than Pensions". SFAS No. 106 requires the Company to accrue the  estimated
cost  of  retiree  benefit  payments  during  the  years  the  employee provides
services. SFAS  No. 106  allows  recognition of  the  cumulative effect  of  the
liability  in the year of adoption or  the amortization of the obligation over a
period of up to 20 years. The  Company has elected to recognize this  obligation
of  approximately $400,000 over a period of  ten years. The Company's cash flows
are  not  affected  by  implementation  of  this  standard,  but  implementation
decreased  net income  by $142,000, $114,000,  and $120,000 for  the years ended
December 31, 1995,  1994 and 1993,  respectively. The Company's  post-retirement
health care plans currently are not funded.
 
The following table sets forth the plan's funded status, reconciled with amounts
recognized in the Company's balance sheet:
 
<TABLE>
<CAPTION>
                                                                 DECEMBER 31,
                                                               ----------------
                                                                1995     1994
                                                               -------  -------
                                                                  (IN 000'S)
 <S>                                                           <C>      <C>
 Accumulated post-retirement benefit obligation:
   --Retirees                                                    $   0    $   0
   --Fully eligible active plan participants                      (601)    (444)
   --Other active plan participants                                  0        0
                                                               -------  -------
   --Accumulated post-retirement benefit obligation in excess
    of plan assets                                                (601)    (444)
   --Unrecognized gains from past experience                       (55)    (110)
   --Unrecognized transition obligation                            280      320
                                                               -------  -------
   --Accrued post-retirement benefit cost                        $(376)   $(234)
                                                               -------  -------
                                                               -------  -------
 Net periodic post-retirement benefit cost components:
   --Service cost--benefits earned                               $  65    $  49
   --Interest cost on accumulated post-retirement benefit
    obligation                                                      42       33
   --Amortization of transition obligation                          40       40
   --Net amortization and deferral                                  (5)      (8)
                                                               -------  -------
   --Net periodic post-retirement benefit cost                   $ 142    $ 114
                                                               -------  -------
                                                               -------  -------
</TABLE>
 
The  discount rate used  in determining the  accumulated post-retirement benefit
obligation was 7.5% in  1995 and 8%  in 1994, and the  assumed health care  cost
trend rate was 12.0% graded to 6% over 10 years after which it remains constant.
 
                                       74
<PAGE>
SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
(Wholly-owned subsidiary of Sun Life Assurance Company of Canada)
 
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
 
13. OTHER POST-RETIREMENT BENEFIT PLANS (CONTINUED):
The  health care  cost trend  rate assumption  has a  significant effect  on the
amounts reported. To illustrate, increasing  the assumed health care cost  trend
rates  by one percentage  point in each year  would increase the post-retirement
benefit obligation as of December 31, 1995 by $149,000 and the estimated service
and interest cost components  of the net  periodic post-retirement benefit  cost
for 1995 by $29,000.
 
14. FAIR VALUE OF FINANCIAL INSTRUMENTS:
The  following table presents the carrying  amounts and estimated fair values of
the Company's financial instruments at December 31, 1995 and 1994:
<TABLE>
<CAPTION>
                                                 DECEMBER 31, 1995
                                           ------------------------------
                                                              ESTIMATED
                                           CARRYING AMOUNT    FAIR VALUE
                                           ---------------   ------------
                                                     (IN 000'S)
 <S>                                       <C>               <C>
 ASSETS
 Bonds                                         2,846,067       3,012,586
 Mortgages                                     1,066,911       1,111,895
 Real estate                                      95,575          98,437
 LIABILITIES
 Insurance reserves                              124,066         124,066
 Individual annuities                            434,261         431,263
 Pension products                              2,227,882       2,265,386
 Derivatives                                          --           3,387
 
<CAPTION>
 
                                                 DECEMBER 31, 1994
                                           ------------------------------
                                                              ESTIMATED
                                           CARRYING AMOUNT    FAIR VALUE
                                           ---------------   ------------
                                                     (IN 000'S)
 <S>                                       <C>               <C>
 ASSETS
 Bonds                                        $2,471,152      $2,444,890
 Mortgages                                     1,120,981       1,107,012
 Real estate                                      89,487          91,072
 LIABILITIES
 Insurance reserves                              129,302         129,302
 Individual annuities                            475,557         476,570
 Pension products                              2,772,618       2,668,382
 Derivatives                                          --               1
</TABLE>
 
The major  methods  and  assumptions  used in  estimating  the  fair  values  of
financial instruments are as follows:
 
The  fair values of short-term bonds are estimated to be the amortized cost. The
fair values of long-term bonds which  are publicly traded are based upon  market
prices  or dealer quotes. For privately  placed bonds, fair values are estimated
using prices for publicly traded bonds  of similar credit risk and maturity  and
repayment characteristics.
 
The  fair values of the Company's general account reserves and liabilities under
investment-type contracts (insurance, annuity and pension contracts that do  not
involve  mortality or morbidity risks) are  estimated using discounted cash flow
analyses or surrender values. Those contracts that are deemed to have short term
guarantees have a carrying amount equal to the estimated market value.
 
                                       75
<PAGE>
SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
(Wholly-owned subsidiary of Sun Life Assurance Company of Canada)
 
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
 
14. FAIR VALUE OF FINANCIAL INSTRUMENTS (CONTINUED):
The fair values  of mortgages  are estimated  by discounting  future cash  flows
using  current rates  at which  similar loans  would be  made to  borrowers with
similar credit ratings and for the same remaining maturities.
 
15. STATUTORY INVESTMENT VALUATION RESERVES:
The asset valuation reserve (AVR) provides a reserve for losses from investments
in bonds, stocks,  mortgage loans,  real-estate and other  invested assets  with
related increases or decreases being recorded directly to surplus.
 
Realized capital gains and losses on bonds and mortgages which relate to changes
in  levels  of  interest  rate  risk are  charged  or  credited  to  an interest
maintenance  reserve  (IMR)  and  amortized  into  income  over  the   remaining
contractual life of the security sold.
 
The tables shown below present changes in the major elements of the AVR and IMR.
 
<TABLE>
<CAPTION>
                                                 1995             1994
                                           ----------------  ---------------
                                             AVR      IMR      AVR     IMR
                                           -------  -------  -------  ------
                                              (IN 000'S)       (IN 000'S)
 <S>                                       <C>      <C>      <C>      <C>
 Balance, beginning of year                $28,409  $18,140  $20,033  $31,414
 Realized capital gains (losses), net of
  tax                                       (1,524)   7,977   (1,320) (9,958)
 Amortization of investment gains                0     (897)       0  (3,316)
 Unrealized investment gains (losses)        3,650        0   (3,537)      0
 Required by formula                        11,564        0   13,233       0
                                           -------  -------  -------  ------
 Balance, end of year                      $42,099  $25,218  $28,409  $18,140
                                           -------  -------  -------  ------
                                           -------  -------  -------  ------
</TABLE>
 
16. FEDERAL INCOME TAXES:
The  Company and its subsidiaries file a consolidated federal income tax return.
Federal income  taxes  are calculated  for  the consolidated  group  based  upon
amounts  determined to be payable  as a result of  operations within the current
year. No provision is recognized for timing differences which may exist  between
financial   statement  and  taxable  income.  Such  timing  differences  include
reserves, depreciation and accrual  of market discount  on bonds. Cash  payments
for  federal  income  taxes  were  approximately  $12,429,000,  $43,200,000  and
$25,000,000 for the years ended December 31, 1995, 1994 and 1993, respectively.
 
17. RISK-BASED CAPITAL:
Effective December 31, 1993 the NAIC adopted risk-based capital requirements for
life insurance companies. The risk-based  capital requirements provide a  method
for  measuring the  minimum acceptable  amount of  adjusted capital  that a life
insurer should have, as determined under statutory accounting practices,  taking
into  account  the risk  characteristics of  its  investments and  products. The
Company has met the minimum risk-based capital requirements for 1995 and 1994.
 
18. NEW ACCOUNTING PRONOUNCEMENT:
In April,  1993, the  Financial Accounting  Standards Board  (FASB) issued  FASB
Interpretation   No.  40,   "Applicability  of   Generally  Accepted  Accounting
Principles  to  Mutual  Life  Insurance  and  Other  Enterprises."  Under   this
interpretation, annual financial statements of mutual life insurance enterprises
for  fiscal  years beginning  after  December 15,  1992,  shall provide  a brief
description that  financial  statements  prepared  on  the  basis  of  statutory
accounting  practices will no longer be described as prepared in conformity with
generally  accepted  accounting  principles.  In  January  1995,  Statement   of
Financial Accounting Standards
 
                                       76
<PAGE>
SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
(Wholly-owned subsidiary of Sun Life Assurance Company of Canada)
 
NOTES TO FINANCIAL STATEMENTS (CONTINUED)
YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993
 
18. NEW ACCOUNTING PRONOUNCEMENT (CONTINUED):
No.  120  (SFAS No.  120)  "Accounting and  Reporting  by Mutual  Life Insurance
Enterprises for Certain Long Duration Participating Contracts" was issued.  SFAS
No.  120 delays the effective  date of interpretation No.  40 until fiscal years
beginning after December 15, 1995.
 
Beginning in  1996,  the Company  will  file financial  statements  prepared  in
accordance  with all  applicable pronouncements  that define  generally accepted
accounting principles for all enterprises.
 
INDEPENDENT AUDITORS' REPORT
 
TO THE BOARD OF DIRECTORS AND STOCKHOLDER
SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
WELLESLEY HILLS, MASSACHUSETTS
 
We have audited the accompanying balance sheets of Sun Life Assurance Company of
Canada (U.S.)  (a  wholly-owned subsidiary  of  Sun Life  Assurance  Company  of
Canada)  as  of  December 31,  1995  and  1994, and  the  related  statements of
operations, capital stock  and surplus,  and cash flows  for each  of the  three
years  in the period ended December 31, 1995. These financial statements are the
responsibility of the Company's management. Our responsibility is to express  an
opinion on these financial statements based on our audits.
 
We   conducted  our  audits  in  accordance  with  generally  accepted  auditing
standards. Those standards require that we plan and perform the audit to  obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also  includes
assessing  the  accounting principles  used  and significant  estimates  made by
management, as well as evaluating the overall financial statement  presentation.
We believe that our audits provide a reasonable basis for our opinion.
 
In  our  opinion,  such financial  statements  present fairly,  in  all material
respects, the financial  position of  the Company as  of December  31, 1995  and
1994, and the results of its operations and its cash flows for each of the three
years  in  the period  ended  December 31,  1995,  in conformity  with generally
accepted accounting principles.
 
DELOITTE & TOUCHE LLP
Boston, Massachusetts
February 7, 1996
 
                                       77
<PAGE>
                      INTERIM PERIOD FINANCIAL STATEMENTS
 
                                   (TO COME)
 
                                   APPENDIX A
 
                                   (TO COME)
 
                                   APPENDIX B
 
STATE PREMIUM TAXES
    The  amount of  applicable tax varies  depending on the  jurisdiction and is
subject to change by the legislature  or other authority. In many  jurisdictions
there  is no tax  at all. The Company  believes that as of  May 31, 1996 premium
taxes will be imposed with respect to Contracts offered by this Prospectus  only
by  the  jurisdictions  listed below  at  the rates  indicated.  For information
subsequent to May 31, 1996 a tax adviser should be consulted.
 
<TABLE>
<CAPTION>
                                                  RATE OF TAX
                                           -------------------------
                                           QUALIFIED   NON-QUALIFIED
 STATE                                     CONTRACTS     CONTRACTS
 ----------------------------------------  ---------   -------------
 <S>                                       <C>         <C>
 California                                   .50%        2.35%
 District of Columbia                        2.25%        2.25%
 Kansas                                       --          2.00%
 Kentucky                                    2.00%        2.00%
 Maine                                        --          2.00%
 Mississippi                                  --          1.00%*
 Nevada                                       --          3.50%
 South Dakota                                 --          1.25%
 West Virginia                               1.00%        1.00%
 Wyoming                                      --          1.00%
<FN>
* No tax on purchase payments received on or after July 1, 1995.
</TABLE>
 
                                       78
<PAGE>
                                   APPENDIX C
        WITHDRAWALS, WITHDRAWAL CHARGES AND THE MARKET VALUE ADJUSTMENT
 
PART 1: VARIABLE ACCOUNT (THE MARKET VALUE ADJUSTMENT DOES NOT APPLY TO THE
VARIABLE ACCOUNT)
 
                                     (TO COME)
 
PART 2--FIXED ACCOUNT--EXAMPLES OF THE MARKET VALUE ADJUSTMENT (MVA)
 
                                     (TO COME)
 
                                       79
<PAGE>
                                   APPENDIX D
                        CALCULATION OF PERFORMANCE DATA
 
AVERAGE ANNUAL TOTAL RETURN:
    The table below shows, for various Sub-Accounts of the Variable Account, the
Average Annual Total Return for the stated periods (or shorter period  indicated
in  the  note below),  based  upon a  hypothetical  initial Purchase  Payment of
$1,000, calculated in accordance with the  formula set out below the table.  For
purposes   of  determining  these  investment  results,  the  actual  investment
performance of each Series  of MFS/Sun Life Series  Trust is reflected from  the
date such Series commenced operations ("Inception"), although the Contracts have
been  offered only since               , 1996.  No information is  shown for the
Emerging Growth Series, the MFS/ Foreign & Colonial Series and the Value  Series
as they did not commence operations until 1995 and 1996.
 
                          AVERAGE ANNUAL TOTAL RETURN
                        PERIOD ENDING DECEMBER 31, 1995
 
<TABLE>
<CAPTION>
                                                     5 YEAR    10 YEAR
                                                     PERIOD    PERIOD
                                                       OR        OR
                                                     LIFETIME  LIFETIME
                                           1 YEAR      OF        OF           DATE OF
                                           PERIOD    SERIES    SERIES        INCEPTION
                                           -------   -------   -------   -----------------
 <S>                                       <C>       <C>       <C>       <C>
 Capital Appreciation Series.............                                 August 13, 1985
 Conservative Growth Series..............                                December 5, 1986
 Government Securities Series............                                 August 12, 1985
 High Yield Series.......................                                 August 13, 1985
 Managed Sectors Series..................                                  May 27, 1988
 Research Series.........................                                November 7, 1994
 Total Return Series.....................                                  May 16, 1988
 Utilities Series........................                                November 16, 1993
 World Asset Allocation Series...........                                November 7, 1994
 World Governments Series................                                  May 16, 1988
 World Growth Series.....................                                November 16, 1993
 World Total Return Series...............                                November 7, 1994
</TABLE>
 
- ---------
*From Date of Inception, as the lifetimes of these series are less than the
periods indicated.
 
The length of the period and the last day of each period used in the above table
are  set out in the table heading and in the footnotes above. The Average Annual
Total Return  for each  period  was determined  by  finding the  average  annual
compounded  rate of return over each period that would equate the initial amount
invested to the ending redeemable value for that period, in accordance with  the
following formula:
 
                                P(1 + T)n = ERV
 
      Where: P = a  hypothetical initial Purchase Payment
                 of $1,000
             T = average  annual  total  return  for  the
                 period
             n = number of years
           ERV = redeemable  value (as of  the end of the
                 period)   of   a   hypothetical   $1,000
                 Purchase  Payment made  at the beginning
                 of the 1-year, 5-year, or 10-year period
                 (or fractional portion thereof)
 
   The formula assumes that: 1) all  recurring fees have been deducted from  the
   Participant's  Account; 2) all applicable  non-recurring Contract charges are
   deducted at the end of the period; and  3) there will be a full surrender  at
   the end of the period.
 
    The  $50 annual Account Fee will be allocated among the Sub-Accounts so that
each Sub-Account's allocated portion of the  Account Fee is proportional to  the
percentage  of the  number of Certificates  that have amounts  allocated to that
Sub-Account. Because the impact of Account Fees on a particular Certificate  may
differ  from those assumed in the  computation due to differences between actual
allocations and  the  assumed  ones,  the total  return  that  would  have  been
experienced  by an actual Certificate over these same time periods may have been
different from that shown above.
 
                                       80
<PAGE>
NON-STANDARDIZED INVESTMENT PERFORMANCE:
 
    The Variable Account  may illustrate  its results over  various periods  and
compare  its results to indices and  other variable annuities in sales materials
including advertisements, brochures and reports. Such results may be computed on
a "cumulative" and/or "annualized" basis.
 
    "Cumulative" quotations  are arrived  at by  calculating the  change in  the
Accumulation  Unit value of a Sub-Account between  the first and last day of the
base period being measured, and expressing the difference as a percentage of the
Accumulation Unit value at the beginning of the base period.
 
    "Annualized" quotations  (described  in  the following  table  as  "Compound
Growth  Rate") are calculated  by applying a formula  which determines the level
rate of return which, if earned over  the entire base period, would produce  the
cumulative return.
 
                                   [To Come]
 
                                       81
<PAGE>
                        ADVERTISING AND SALES LITERATURE
 
    As  set forth  in the  Prospectus, the  Company may  refer to  the following
organizations (and others) in its marketing materials:
 
    A.M. BEST'S  RATING  SYSTEM is  designed  to evaluate  the  various  factors
affecting the overall performance of an insurance company in order to provide an
opinion  as to an insurance company's relative financial strength and ability to
meet its contractual obligations. The procedure includes both a quantitative and
qualitative review of each company.
 
    DUFF &  PHELPS  CREDIT  RATING COMPANY's  Insurance  Company  Claims  Paying
Ability  Rating is an  independent evaluation by  a nationally accredited rating
organization of an insurance  company's ability to  meet its future  obligations
under  the contracts and products  it sells. The rating  takes into account both
quantitative and qualitative factors.
 
    LIPPER  VARIABLE  INSURANCE  PRODUCTS  PERFORMANCE  ANALYSIS  SERVICE  is  a
publisher  of statistical data  covering the investment  company industry in the
United States and overseas. Lipper is  recognized as the leading source of  data
on  open-end and  closed-end funds. Lipper  currently tracks  the performance of
over 5,000  investment companies  and  publishes numerous  specialized  reports,
including  reports  on  performance  and  portfolio  analysis,  fee  and expense
analysis.
 
    STANDARD & POOR's insurance claims-paying ability rating is an opinion of an
operating insurance  company's financial  capacity to  meet obligations  of  its
insurance policies in accordance with their terms.
 
    VARDS  (Variable  Annuity Research  Data  Service) provides  a comprehensive
guide to variable annuity contract features and historical fund performance. The
service also  provides  a readily  understandable  analysis of  the  comparative
characteristics and market performance of funds inclusive in variable contracts.
 
    STANDARD  & POOR'S INDEX--broad-based measurement of changes in stock-market
conditions based on the  average performance of 500  widely held common  stocks;
commonly  known as the Standard & Poor's 500 (S&P 500). The selection of stocks,
their relative weightings to  reflect differences in  the number of  outstanding
shares,  and publication of the  index itself are services  of Standard & Poor's
Corporation, a financial advisory, securities  rating, and publishing firm.  The
index  tracks  400  industrial  company  stocks,  20  transportation  stocks, 40
financial company stocks, and 40 public utilities.
 
    NASDAQ-OTC Price Index--this index is  based on the National Association  of
Securities  Dealers Automated  Quotations (NASDAQ)  and represents  all domestic
over-the-counter stocks except those traded  on exchanges and those having  only
one  market maker, a total of some 3,500 stocks. It is market value-weighted and
was introduced with a base of 100.00 on February 5, 1971.
 
    DOW JONES INDUSTRIAL AVERAGE  (DJIA)--price-weighted average of 30  actively
traded  blue chip stocks, primarily  industrials, but including American Express
Company and American Telephone and Telegraph Company. Prepared and Published  by
Dow  Jones & Company, it is the oldest  and most widely quoted of all the market
indicators. The average is quoted in points, not dollars.
 
    In its advertisements and  other sales literature  for the Variable  Account
and  the Series Fund,  the Company intends  to illustrate the  advantages of the
Contracts in a number of ways:
 
    COMPOUND INTEREST ILLUSTRATIONS.  These will emphasize several advantages of
the variable annuity contract.  For example, but not  by way of limitation,  the
literature  may  emphasize  the  potential  savings  through  tax  deferral; the
potential advantage of  the Variable  Account over  the fixed  account; and  the
compounding  effect  when a  participant makes  regular deposits  to his  or her
account.
 
    DOLLAR COST  AVERAGING ILLUSTRATIONS.   These  illustrations will  generally
discuss  the price-leveling  effect of  making regular  investments in  the same
Sub-Accounts over a period of  time, to take advantage  of the trends in  market
prices of the portfolio securities purchased by those Sub-Accounts.
 
    SYSTEMATIC  WITHDRAWAL PROGRAM.  A service  provided by the Company, through
which a Participant may take any distribution allowed by Code Section  401(a)(9)
in  the case of Qualified  Contracts, or permitted under  Code Section 72 in the
case of Non-Qualified  Contracts, by  way of  a series  of partial  withdrawals.
Withdrawals  under this program  may be fully or  partially includible in income
and may be subject to a 10% penalty tax. Consult your tax advisor.
 
    THE COMPANY'S OR MFS'S CUSTOMERS.  Sales literature for the Variable Account
and the Series Fund may refer to the  number of clients which they serve. As  of
the  date of this  Prospectus, MFS was  serving over [To  Come] million investor
accounts.
 
    THE COMPANY'S OR MFS'S  ASSETS, SIZE.  The  Company may discuss its  general
financial condition (see, for example, the references to Standard & Poor's, Duff
&  Phelps and A.M. Best Company above); it  may refer to its assets; it may also
discuss its relative  size and/or  ranking among  companies in  the industry  or
among   any  sub-classification  of  those   companies,  based  upon  recognized
evaluation criteria. For  example, at  year-end 1994  the Company  was the  46th
largest  U.S. life  insurance company based  upon overall assets  and its parent
company, Sun Life Assurance Company of Canada, was the 19th largest.
 
                                       82
<PAGE>
                                   SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
                                   ANNUITY SERVICE MAILING ADDRESS:
                                   C/O SUN LIFE ANNUITY SERVICE CENTER
                                   P.O. BOX 1024
                                   BOSTON, MASSACHUSETTS 02103
 
                                   TELEPHONE:
                                   Toll Free (800) 752-7215
                                   In Massachusetts (617) 348-9600
 
                                   GENERAL DISTRIBUTOR
                                   Clarendon Insurance Agency, Inc.
                                   500 Boylston Street
                                   Boston, Massachusetts 02116
 
                                   LEGAL COUNSEL
                                   Covington & Burling
                                   1201 Pennsylvania Avenue, N.W.
                                   P.O. Box 7566
                                   Washington, D.C. 20044
 
                                   AUDITORS
                                   Deloitte & Touche LLP
                                   125 Summer Street
                                   Boston, Massachusetts 02110
 
CLASSIC-1 7/96
<PAGE>

                                     PART B

                     INFORMATION REQUIRED IN A STATEMENT OF
                             ADDITIONAL INFORMATION

          The information required in a Statement of Additional Information is
contained in the Prospectus included in Part A of this Amendment to the
Registration Statement.


                                     PART C

                                OTHER INFORMATION

Item 24.  FINANCIAL STATEMENTS AND EXHIBITS

     (a)  The following Financial Statements are included in the Registration
Statement:

Included in Part A:

A.   Financial Statements of the Registrant:

      1.  Statement of Condition, December 31, 1995;

      2.  Statement of Operations, Year Ended December 31, 1995;

      3.  Statements of Changes in Net Assets, Years Ended December 31, 1995 and
          December 31, 1994;

      4.  Notes to Financial Statements; and

      5.  Independent Auditors' Report.

B.    Financial Statements of the Depositor:


      1.  Balance Sheets, December 31, 1995 and 1994;

      2.  Statements of Operations, Years Ended December 31, 1995, 1994 and
          1993;

      3.  Statements of Capital Stock and Surplus, Years Ended December 31,
          1995, 1994 and 1993;

      4.  Statements of Cash Flows, Years Ended December 31, 1995, 1994 and
          1993;

      5.  Notes to Financial Statements; and

      6.  Independent Auditors' Report.

      7. *Balance Sheets, March 31, 1996 and 1995;

      8. *Statements of Operations, Three Months Ended March 31, 1996 and
          1995;

      9. *Statements of Capital Stock and Surplus, Three Months Ended
          March 31, 1996 and 1995;

     10. *Statements of Cash Flows, Three Months Ended March 31, 1996 and
          1995; and

     11. *Notes to Unaudited Financial Statements Three Months Ended 
          March 31, 1996 and 1995.


          *To be filed by Amendment.
<PAGE>

          (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 (Filed as
Exhibit 1 to the Registration Statement of the Registrant on Form N-4, File
No. 33-29852);

          (2)       Not Applicable;

          (3)       (a)  Distribution Agreement between the depositor,
Massachusetts Financial Services Company and Clarendon Insurance Agency, Inc.
(Filed as Exhibit 3 (a) to the Registration Statement of the Registrant on Form
N-4, File No. 33-29852);

                    (b)(i)    Specimen Sales Operations and General Agent
Agreement (Filed as Exhibit 3 (b)(i) to the Registration Statement of the
Registrant on Form N-4, File No. 33-29852);

                    (b)(ii)   Specimen Broker-Dealer Supervisory and Service
Agreement (Filed as Exhibit 3 (b)(ii) to the Registration Statement of the
Registrant on Form N-4, File No. 33-29852); and

                    (b)(iii)  Specimen Registered Representatives Agent
Agreement (Filed as Exhibit 3 (b)(iii) to the Registration Statement of the
Registrant on Form N-4, File No. 33-29852);

          (4)       (a)  Flexible Payment Combination Fixed/Variable Group
Annuity Contract (To be filed by Amendment);

                    (b)  Certificate to be issued in connection with Contract
filed as Exhibit 4(a) (To be filed by Amendment);

          (5)       (a)  Form of Application to be used with the annuity
contract filed as Exhibit 4(a) (To be filed by Amendment);

                    (b)  Form of Application to be used with the Certificate
filed as Exhibit 4(b) (To be filed by Amendment);

          (6)  Certificate of Incorporation and By-laws of the depositor (Filed
as Exhibits 3(a) and 3(b), respectively, to the Registration Statement of the
Depositor on Form S-1, File No. 33-29851);

     (7)  Not Applicable;

     (8)  None;

<PAGE>

     (9)  Opinion of Counsel and Consent to its use as to the legality of the
securities being registered (To be filed by Amendment);

     (10)      (a)  Consent of Deloitte & Touche, LLP (Filed herewith); and

               (b)  Consent of David D. Horn, Esq. (Filed herewith); 

      (11)     None;

      (12)     Not Applicable;

      (13)     Schedule for Computation of Performance Quotations (To be 
filed by Amendment); and

      (14)     Financial Data Schedule meeting the requirements of 
Rule 483 under the Securities Act of 1933 (Filed herewith).


Item 25.  DIRECTORS AND OFFICERS OF THE DEPOSITOR

Name and Principal                      Positions and Offices
Business Address                        with Depositor
- ------------------                      ----------------------

John D. McNeil                          Chairman and Director
150 King Street West
Toronto, Ontario
  Canada  M5H 1J9

John R. Gardner                         President and Director
150 King Street West
Toronto, Ontario
  Canada  M5H 1J9

David D. Horn                           Senior Vice President
One Sun Life Executive Park             and General Manager
Wellesley Hills, MA  02181              and Director

John S. Lane                            Director
150 King Street West
Toronto, Ontario
  Canada  M5H 1J9

Richard B. Bailey                       Director
500 Boylston Street
Boston, MA  02116

A. Keith Brodkin                        Director
500 Boylston Street
Boston, MA  02116

<PAGE>

Name and Principal                      Positions and Offices
Business Address                        with Depositor
- ------------------                      ---------------------

M. Colyer Crum                          Director
Harvard Business School
Soldiers Field Road
Boston, MA  02163

Angus A. MacNaughton                    Director
950 Tower Lane
Metro Tower, Suite 1170
Foster City, CA  94404

Robert A. Bonner                        Vice President, Pensions
One Sun Life Executive Park
Wellesley Hills, MA  02181

Robert E. McGinness                     Vice President and Counsel
One Sun Life Executive Park
Wellesley Hills, MA  02181

C. James Prieur                         Vice President, Investments
One Sun Life Executive Park
Wellesley Hills, MA  02181

S. Caesar Raboy                         Vice President, Individual
One Sun Life Executive Park             Insurance
Wellesley Hills, MA  02181

L. Brock Thomson                        Vice President
One Sun Life Executive Park             and Treasurer
Wellesley Hills, MA  02181

Robert P. Vrolyk                        Vice President and Actuary
One Sun Life Executive Park
Wellesley Hills, MA  02181

Bonnie S. Angus                         Secretary
One Sun Life Executive Park
Wellesley Hills, MA  02181

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.),
a wholly-owned subsidiary of Sun Life Assurance Company of Canada.

     The following is a list of all corporations directly or indirectly
controlled by or under common control with Sun Life Assurance Company of Canada,
showing the state or other sovereign power under the laws of which each is
organized and the percentage ownership of voting securities giving rise to the
control relationship:

<PAGE>


                                                                 Percent of
                                             State or Country    Ownership
                                             or Jurisdiction     of Voting
                                             of Incorporation    Securities
                                             ----------------    ----------

Sun Life Assurance Company of Canada         Canada                   100%
- --------------------------------------------------------------------------------
Sun Life Assurance Company of Canada
  (U.S.).................................... Delaware                 100%
Sun Life Assurance Company of Canada
  (U.K.) Limited ........................... United Kingdom           100%
Sun Life of Canada Investment Management
  Limited .................................. Canada                   100%
Sun Life of Canada Benefit Management
  Limited .................................. Canada                   100%
Spectrum United Holdings, Inc............... Canada                   100%
Sun Canada Financial Co..................... Delaware                 100%
Sun Life Insurance and Annuity Company of
  New York ................................. New York                   0%**
Sun Investment Services Company ............ Delaware                   0%**
Sun Benefit Services Company, Inc. ......... Delaware                   0%**
Sun Growth Variable Annuity Fund, Inc. ..... Delaware                   0%*
Massachusetts Financial Services Company ... Delaware                   0%+
New London Trust, F.S.B.................     Federally Chartered        0%**
Massachusetts Casualty Insurance Company.... Massachusetts              0%**
Clarendon Insurance Agency, Inc. ........... Massachusetts              0%***
MFS Service Center, Inc..................... Delaware                   0%***
MFS/Sun Life Series Trust .................. Massachusetts              0%****
Lifetime Advisers, Inc. .................... Delaware                   0%***
Sun Capital Advisers, Inc. ................. Delaware                   0%**
MFS International, Ltd. .................... Ireland                    0%***
MFS Asset Management, Inc. ................. Delaware                   0%***
MFS Fund Distributors, Inc. ................ Delaware                   0%***
MFS Retirement Services, Inc. .............. Delaware                   0%***
Sun Life Financial Service Limited.......... Bermuda                    0%**


- --------

  *   100% of the issued and outstanding voting securities of Sun Growth
      Variable Annuity Fund, Inc. are owned by separate accounts of Sun Life
      Assurance Company of Canada (U.S.).


 **   100% of the issued and outstanding voting securities of New London 
      Trust, F.S.B., Sun Life Insurance and Annuity Company of New York, 
      Sun Investment Services  Company, Sun Benefit Services Company, Inc., 
      Sun Capital Advisers, Inc., Sun Life Financial Services Limited, and 
      Massachusetts Casualty Insurance Company are owned by Sun Life 
      Assurance Company of Canada (U.S.).

 ***  100% of the issued and outstanding voting securities of Clarendon
      Insurance Agency, Inc., MFS Service Center, Inc., Lifetime Advisers, Inc.,
      MFS Financial Services, Inc., MFS International, Ltd., MFS Asset
      Management, Inc., MFS Fund Distributors, Inc., and MFS Retirement
      Services, Inc. are owned by Massachusetts Financial Services Company.
****  100% of the issued and outstanding voting securities of MFS/Sun Life
      Series Trust are owned by separate accounts of  Sun Life Assurance Company
      of Canada (U.S.) and Sun Life Insurance and Annuity Company of New York.


   +  94.8% of the issued and outstanding voting securities of Massachusetts
      Financial Services Company are owned by Sun Life Assurance Company of
      Canada (U.S.).

<PAGE>

      Omitted from the list are subsidiaries of Sun Life Assurance Company of
Canada which, considered in the aggregate, would not constitute a "significant
subsidiary" (as that term is defined in Rule 8b-2 under Section 8 of the
Investment Company Act of 1940) of Sun Life Assurance Company of Canada.

      None of the companies listed 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 March 31, 1996 there were _______ qualified and _______ 
non-qualified Contracts participating in the investment experience of the 
Variable Account.

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.), a copy of which was
filed as Exhibit 3(b) to the Registration Statement of the Depositor on Form S-
1, File No. 33-29851, 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,
unless in the opinion of their counsel the matter has been settled by
controlling precedent, submit to a court of appropriate jurisdiction the
question whether such indemnification by them is against public policy as
expressed in the Act and will be governed by the final adjudication of such
issue.

Item 29.  PRINCIPAL UNDERWRITERS

      (a)  Clarendon Insurance Agency, Inc., which is a wholly-owned subsidiary
of Massachusetts Financial Services Company, acts as general distributor for the
Registrant, Sun Life of Canada (U.S.) Variable Accounts C, D,and E, Sun Life
(N.Y.) Variable Accounts A, B and C and Money Market Variable Account, High
Yield Variable Account, Capital Appreciation Variable Account, Government
Securities Variable Account, World Governments Variable Account, Total Return
Variable Account and Managed Sectors Variable Account.

<PAGE>



Name and Principal                    Positions and Offices
Business Address*                        with Underwriter
- ------------------                    ---------------------
A. Keith Brodkin.................   Chairman and Director**
Arnold D. Scott..................         Director
Jeffrey L. Shames................         Director
Cynthia M. Orcutt................         President
Bruce C. Avery...................      Vice President
Joseph W. Dello Russo............         Treasurer
Stephen E. Cavan.................     Secretary and Clerk
Robert T. Burns..................     Assistant Secretary
Thomas B. Hastings...............     Assistant Treasurer


- ------------------

 *    The principal business address of all directors and officers of the
      principal underwriter except Ms. Orcutt is 500 Boylston Street, Boston,
      Massachusetts  02116.  The principal business address of Ms. Orcutt is One
      Sun  Life Executive Park, Wellesley Hills, Massachusetts   02181.

**    Mr. Brodkin is a Director of Sun Life Assurance Company of Canada (U.S.)
      and Sun Life Insurance and Annuity Company of New York.

      (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 by Sun Life Assurance Company of Canada (U.S.), in
whole or in part, at its executive office at One Sun Life Executive Park,
Wellesley Hills, Massachusetts  02181, at the offices of the Sun Life Annuity
Service Center at 50 Milk Street, Boston, Massachusetts  02103 or at the offices
of Massachusetts Financial Services Company at 500 Boylston Street, Boston,
Massachusetts  02116.

Item 31.  MANAGEMENT SERVICES

      Not Applicable.

Item 32.  UNDERTAKINGS

      (a)        Registrant hereby undertakes to file post-effective 
                 amendments to the Registration Statement as frequently
                 as necessary to ensure that the audited financial 
                 statements in the Registration Statement are never more 
                 than 16 months old for as long as payments under the 
                 variable annuity contracts may be accepted.

      (b)(c)     Inapplicable.

<PAGE>

                                   SIGNATURES


      As required by the Securities Act of 1933 and the Investment Company 
Act of 1940, the Registrant has caused this Registration Statement to be 
signed on its behalf in the Town of Wellesley and Commonwealth of 
Massachusetts on the 5th day of June, 1996.

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

                                        (Registrant)


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

                                        (Depositor)




                                        By:*   /s/ JOHN D. McNEIL
                                              ---------------------
                                                   John D. McNeil
                                                   Chairman


Attest:   /s/ BONNIE S. ANGUS
          -----------------------
             Bonnie S. Angus
             Secretary


      As required by the Securities Act of 1933, this 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.

    Signatures                     Title                    Date
    ----------                     -----                    ----

                                 Chairman and
                                   Director
                                 (Principal
*    /s/ JOHN D. McNEIL       Executive Officer)       June 5, 1996
- --------------------------
         John D. McNeil


                               Vice President
                                 and Actuary
                            (Principal Financial
                               and Accounting
    /s/  ROBERT P. VROLYK          Officer)            June 5, 1996
- --------------------------
         Robert P. Vrolyk


- -------------------------
*     By Bonnie S. Angus pursuant to Power of Attorney filed with Post-Effective
      Amendment No. 5 to the Registration Statement of the Registrant on Form N-
      4, File No. 33-41628.

<PAGE>

    Signatures                          Title                  Date
    ----------                          -----                  ----

*   /s/ RICHARD B. BAILEY               Director            June 5, 1996
- -------------------------------
        Richard B. Bailey



*   /s/ A. KEITH BRODKIN                Director            June 5, 1996
- -------------------------------
        A. Keith Brodkin



*   /s/ M. COLYER CRUM                  Director            June 5, 1996
- -------------------------------
        M. Colyer Crum



*   /s/ JOHN R. GARDNER               President and         June 5, 1996
- -------------------------------          Director
        John R. Gardner




                                   Senior Vice President
*   /s/ DAVID D. HORN                and General Manager    June 5, 1996
- -------------------------------        and Director
        David D. Horn





*   /s/ JOHN S. LANE                     Director           June 5, 1996
- -------------------------------
        John S. Lane




*   /s/ ANGUS A. MacNAUGHTON             Director           June 5, 1996
- -------------------------------
        Angus A. MacNaughton



- ---------------------------

*     By Bonnie S. Angus pursuant to Power of Attorney filed with Post-Effective
      Amendment No. 5 to the Registration Statement of the Registrant on Form N-
      4, File No. 33-41628.



<PAGE>


                                                            Exhibit 10(a)


                          INDEPENDENT AUDITORS' CONSENT



     We consent to the use in this Registration Statement of Sun Life of 
Canada (U.S.) variable Account F on Form N-4 of our report dated February 2, 
1996 accompanying the financial statements of Sun Life of Canada (U.S.) 
Variable Account F and to the use of our report dated February 7, 1996 
accompanying the financial statements of Sun Life Assurance Company of Canada 
(U.S.) appearing in the Prospectus, which is part of such Registration 
Statement, and to the incorporation by reference of our reports dated 
February 7, 1996 appearing in the Annual Report on Form 10-K of Sun Life 
Assurance Company of Canada (U.S.) for the year ended Decemeber 31, 1995.

We also consent to the reference to us under the heading "Accountants" in 
such Prospectus.

DELOITTE & TOUCHE LLP
Boston, Massachusetts
June 5, 1996



<PAGE>

                                             Exhibit 10(b)


                               CONSENT OF COUNSEL



     I hereby consent to the reference to me in the Registration Statement on 
Form N-4 of Sun Life of Canada (U.S.) Variable Account F under the caption 
"Legal Matters" in the Prospectus contained therein.

                                   DAVID D. HORN, ESQ.


June 5, 1996



<TABLE> <S> <C>

<PAGE>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE 
FINANCIAL STATEMENTS OF SUN LIFE OF CANADA (U.S.) VARIABLE ACCOUNT F AND IS 
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<CIK>     0000853285
<NAME>    N/A
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1995
<PERIOD-START>                             JAN-01-1995
<PERIOD-END>                               DEC-31-1995
<INVESTMENTS-AT-COST>                    2,867,498,125
<INVESTMENTS-AT-VALUE>                   3,287,406,143
<RECEIVABLES>                                  162,592
<ASSETS-OTHER>                                       0
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                           3,287,568,735
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                            0
<TOTAL-LIABILITIES>                                  0
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                             0
<SHARES-COMMON-STOCK>                      186,093,315
<SHARES-COMMON-PRIOR>                      144,295,900
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                              0
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                             0
<NET-ASSETS>                             3,287,568,735
<DIVIDEND-INCOME>                           95,624,877
<INTEREST-INCOME>                                    0
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              36,711,917
<NET-INVESTMENT-INCOME>                     58,912,960
<REALIZED-GAINS-CURRENT>                    33,713,632
<APPREC-INCREASE-CURRENT>                  460,667,644
<NET-CHANGE-FROM-OPS>                      553,294,236
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                     58,358,132
<NUMBER-OF-SHARES-REDEEMED>                 16,560,717
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                   1,092,047,950
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                                0
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             36,711,917
<AVERAGE-NET-ASSETS>                     2,622,279,600
<PER-SHARE-NAV-BEGIN>                                0
<PER-SHARE-NII>                                      0
<PER-SHARE-GAIN-APPREC>                              0
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                                  0
<EXPENSE-RATIO>                                      0
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>


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