SUN LIFE ASSURANCE CO OF CANADA US
POS AM, 1996-05-01
LIFE INSURANCE
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<PAGE>
                                                     Registration No. 33-41858
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- ------------------------------------------------------------------------------

                      SECURITIES AND EXCHANGE COMMISSION
                           Washington, D.C. 20549

                           ----------------------
   
                        POST-EFFECTIVE AMENDMENT NO. 5
                                     TO
                                  FORM S-2
    
                            REGISTRATION STATEMENT
                                   UNDER
                          THE SECURITIES ACT OF 1933

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

                  SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
            (Exact name of registrant as specified in its charter)

          Delaware                                            04-2461439
(State or other jurisdiction of                            (I.R.S. Employer
incorporation or organization)                            Identification No.)

      ONE SUN LIFE EXECUTIVE PARK, WELLESLEY HILLS, MASSACHUSETTS 02181
                              (617) 237-6030
        (Address, including zip code, and telephone number, including
           area code, of registrant's principal executive offices)


                                                       Copies to:
    BONNIE S. ANGUS, Secretary                       DAVID N. BROWN, ESQ.
  SUN LIFE ASSURANCE COMPANY OF                      COVINGTON & BURLING
         CANADA (U.S.)                            1201 Pennsylvania Avenue N.W.
   One Sun Life Executive Park                          P.O. Box 7566
Wellesley Hills, Massachusetts 02181                 Washington, D.C. 20044
          (617) 237-6030                                 (202) 662-5238
(Name, address, including zip code, and telephone
number, including area code, of agent for service)


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<PAGE>


                SUN LIFE ASSURANCE COMPANY OF CANADA (U.S.)
   
                     Post-Effective Amendment No. 5 to
                    Registration Statement on Form S-2
                     Cross Reference Sheet Pursuant To
                        Regulation S-K, Item 501(b)
    
<TABLE>
<CAPTION>

         Form S-2 Item Number
             and Caption                     Location in Prospectus; Caption
         --------------------                -------------------------------
<C>       <S>                                <C>

 1.       Forepart of the Registration       Cover Pages
          Statement and Outside Front
          Cover Page of Prospectus

 2.       Inside Front and Outside Back      Cover Pages; Table of Contents
          Cover Pages of Prospectus

 3.       Summary Information, Risk          Cover Pages (Summary); Expense
          Factors and Ratio of Earnings      Summary
          to Fixed Charges

 4.       Use of Proceeds                    A Word About the Company, the
                                             Fixed Account, the Variable
                                             Account and the Series Fund

 5.       Determination of Offering Price    Not Applicable

 6.       Dilution                           Not Applicable

 7.       Selling Security Holders           Not Applicable

 8.       Plan of Distribution               Distribution of the Contracts

 9.       Description of Securities to be    Cover Pages; A Word About the
          Registered                         Company, the Fixed Account, the
                                             Variable Account and the Series
                                             Fund; Purchase Payments and
                                             Contract Values During
                                             Accumulation Period; Cash
                                             Withdrawals, Withdrawal Charges
                                             and Market Value Adjustment;
                                             Other Contractual Provisions

10.       Interests of Named Experts and     Not Applicable
          Counsel

11.       Information with Respect to the    A Word About the Company, the
          Registrant                         Fixed Account, the Variable
                                             Account and the Series Fund;
                                             Other Contractual Provisions;
                                             Additional Information About the
                                             Company; The Company's Directors
                                             and Executive Officers; Legal
                                             Proceedings; Legal Opinions;
                                             Financial Statements
</TABLE>

Regatta Reg S-2

<PAGE>

<TABLE>
<CAPTION>

         Form S-2 Item Number
             and Caption                     Location in Prospectus; Caption
         --------------------                -------------------------------
<C>      <S>                                 <C>

12.       Incorporation of Certain           Cover Pages
          Information by Reference

13.       Disclosure of Commission           Not Applicable
          Position on Indemnification for
          Securities Act Liabilities

</TABLE>

<PAGE>


                                   PART I

                     INFORMATION REQUIRED IN PROSPECTUS
   
Attached hereto and made a part hereof is the Prospectus dated May 1, 1996.
    

<PAGE>
   
                                                                      PROSPECTUS
                                                                     MAY 1, 1996
    
 
                                  MFS REGATTA
 
               --------------------------------------------------
 
    The  master group 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.  Only one Purchase  Payment will  be
accepted  by the  Company for  each Certificate. A  Purchase Payment  must be at
least $5,000 and 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. Seven
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;  and
(7)  Managed Sectors 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 22.  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  THIS  PROSPECTUS  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,  the
Purchase  Payment is  allocated to  one or  more Guarantee  Periods available in
connection with the Fixed Account  with durations of from  one to ten years,  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 four  percent (4%) 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 four percent
(4%)). 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 the Purchase Payment  made
for a Certificate. However, if any part of a Participant's Account is withdrawn,
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.  During the first seven
Account Years  up to  ten  percent (10%)  of the  Net  Purchase Payment  may  be
withdrawn  in each Account Year on a non-cumulative basis without the imposition
of the withdrawal  charge by the  Company. Amounts withdrawn  in excess of  such
amount  (adjusted by an  applicable Market Value Adjustment  with respect to the
Fixed Account) will be subject to a withdrawal charge ranging from 6% to 0%. The
withdrawal charge is not imposed after the end of the seventh Account Year  (See
"Withdrawal Charges" on page 19). In addition, for the first seven Account Years
the  Company deducts a distribution expense charge  at the end of each Valuation
Period equal to an annual rate of 0.15% of the daily net assets of the  Variable
Account (the staff of the Securities and Exchange Commission deems this charge a
deferred  sales  charge). There  is no  deduction  for the  distribution expense
charge after the seventh Account Anniversary. In no event will the  distribution
expense  charges  and the  withdrawal charges  assessed against  a Participant's
Account exceed 9%  of the Purchase  Payment (See "Charges  Against the  Variable
Account  for Mortality  and Expense Risks  and Distribution  Expense Charges" on
page 23).
 
    In addition, any cash withdrawal of amounts allocated to the Fixed  Account,
other  than a withdrawal effective within 30  days of 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. If the applicable Guaranteed Interest Rate is more  than
 .50%  higher  than  the  Current  Rate,  the  application  of  the  Market Value
Adjustment will  result in  a  higher payment  upon withdrawal.  Otherwise,  the
application  of the Market Value Adjustment will  result in a lower payment upon
withdrawal (See "Market Value Adjustment" on page 21).
 
    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 20).
 
    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" on page 18.
 
    On each Account Anniversary and on surrender of a Certificate for full value
the  Company will deduct an annual account administration fee ("Account Fee") of
$30 from  the Participant's  Account. After  the Annuity  Commencement Date  the
Account  Fee will be deducted  pro rata from each  variable annuity payment made
during the year.  This charge  is to  reimburse the  Company for  administrative
expenses   related  to  the  issuance  and  maintenance  of  the  Contracts  and
Certificates (See "Account Fee" on page 22).
 
                                       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 1.25% of the daily net assets
of the Variable Account for mortality  and expense risks assumed by the  Company
(See  "Charges Against the Variable Account  for Mortality and Expense Risks and
Distribution Expense Charges" on page 23).
 
    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 29 and "Modification" on page 30).
 
    In  addition,  the  Contracts  provide  that  the  Company  may  change  the
withdrawal   charges,  Account   Fee,  mortality   and  expense   risk  charges,
distribution expense 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 30).
 
    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 21).
 
    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 24).
 
    Premium taxes payable to any governmental  entity will be deducted from  the
Participant's Account (See "Premium Taxes" on page 23).
 
    Subject  to  certain conditions,  and  during the  Accumulation  Period, the
Participant may,  without charge,  transfer amounts  among the  Sub-Accounts  or
Guarantee  Periods available  under the Contract.  Transfers from  or within the
Fixed Account will be subject to the Market Value Adjustment unless the transfer
is effective within  30 days of  the Expiration Date  of the amount  transferred
(See "Transfer Privilege" on page 18).
 
    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 26).
 
    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 28).
 
                                       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 29. 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
heretofore filed  by the  Company with  the  Commission under  the 1934  Act  is
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
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<S>                                                                         <C>
Definitions                                                                   7
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Expense Summary                                                               9
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Condensed Financial Information--Accumulation Unit Values                    10
- --------------------------------------------------------------------------------
Performance Data                                                             11
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This Prospectus is a Catalog of Facts                                        11
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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                                                    16
    Variable Accumulation Value                                              16
    Fixed Accumulation Value                                                 17
    Guarantee Periods                                                        17
    Guaranteed Interest Rates                                                18
    Transfer Privilege                                                       18
- --------------------------------------------------------------------------------
Cash Withdrawals, Withdrawal Charges and Market Value Adjustment             18
    Cash Withdrawals                                                         18
    Withdrawal Charges                                                       19
    Section 403(b) Annuities                                                 20
    Market Value Adjustment                                                  21
- --------------------------------------------------------------------------------
Death Benefit                                                                21
    Death Benefit Provided by the Contract                                   21
    Election and Effective Date of Election                                  21
    Payment of Death Benefit                                                 22
    Amount of Death Benefit                                                  22
- --------------------------------------------------------------------------------
How the Contract Charges Are Assessed                                        22
    Account Fee                                                              22
    Premium Taxes                                                            23
    Charges Against the Variable Account for Mortality and Expense Risks
     and Distribution Expense Charges                                        23
    Withdrawal Charges                                                       24
- --------------------------------------------------------------------------------
Annuity Provisions                                                           24
    Annuity Commencement Date                                                24
    Election--Change of Annuity Option                                       24
    Annuity Options                                                          25
    Determination of Annuity Payments                                        26
    Fixed Annuity Payments                                                   26
    Variable Annuity Payments                                                26
    Variable Annuity Unit Value                                              26
    Exchange of Variable Annuity Units                                       27
    Annuity Payment Rates                                                    27
- --------------------------------------------------------------------------------
</TABLE>
    
 
                                       5
<PAGE>
                         TABLE OF CONTENTS--(CONTINUED)
   
<TABLE>
<CAPTION>
                                                                            PAGE
- --------------------------------------------------------------------------------
<S>                                                                         <C>
Other Contractual Provisions                                                 27
    Payment Limits                                                           27
    Designation and Change of Beneficiary                                    27
    Exercise of Contract Rights                                              27
    Change of Ownership                                                      28
    Death of Participant                                                     28
    Voting of Series Fund Shares                                             28
    Periodic Reports                                                         29
    Substituted Securities                                                   29
    Change in Operation of Variable Account                                  29
    Splitting Units                                                          30
    Modification                                                             30
    Discontinuance of New Participants                                       30
    Custodian                                                                30
    Right to Return                                                          30
- --------------------------------------------------------------------------------
Federal Tax Status                                                           31
    Introduction                                                             31
    Tax Treatment of the Company and the Variable Account                    31
    Taxation of Annuities in General                                         31
    Qualified Retirement Plans                                               33
    Pension and Profit-Sharing Plans                                         33
    Tax-Sheltered Annuities                                                  34
    Individual Retirement Accounts                                           34
- --------------------------------------------------------------------------------
Administration of the Contracts                                              34
- --------------------------------------------------------------------------------
Distribution of the Contracts                                                34
- --------------------------------------------------------------------------------
Additional Information About the Company                                     35
    Selected Financial Data                                                  35
    Management's Discussion and Analysis of Financial Condition and
     Results of Operations                                                   35
    Liquidity                                                                38
    Reinsurance                                                              38
    Reserves                                                                 38
    Investments                                                              38
    Competition                                                              39
    Employees                                                                39
    Properties                                                               39
- --------------------------------------------------------------------------------
The Company's Directors and Executive Officers                               39
- --------------------------------------------------------------------------------
    Executive Compensation                                                   42
State Regulation                                                             42
- --------------------------------------------------------------------------------
Legal Proceedings                                                            43
- --------------------------------------------------------------------------------
Legal Matters                                                                43
- --------------------------------------------------------------------------------
Accountants                                                                  43
- --------------------------------------------------------------------------------
Registration Statements                                                      43
- --------------------------------------------------------------------------------
Financial Statements                                                         44
- --------------------------------------------------------------------------------
Appendix A--Variable Accumulation Unit Value, Variable Annuity Unit Value
  and Variable Annuity Payment Calculations                                  75
Appendix B--State Premium Taxes                                              75
Appendix C--Withdrawals, Withdrawal Charges and the Market Value
  Adjustment                                                                 76
Appendix D--Calculation of Performance Data; Advertising and Sales
  Literature                                                                 78
</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.
 
    *ANNUlTANT:  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
survivor 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
survivor 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.
 
    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. This period may be one to ten years, as elected by the Participant.
 
- ------------------------
*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
the Net Purchase Payment is 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.
 
    SEVEN YEAR ANNIVERSARY:  The seventh Account Anniversary and each succeeding
Account  Anniversary  occurring  at  any  seven  year  interval  thereafter, for
example, the 14th, 21st and 28th Account Anniversaries.
 
    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 the Variable  Account's
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.
 
- ------------------------
*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                    APPRE-     GOVERNMENT     WORLD        TOTAL       MANAGED
PARTICIPANT                            MARKET     HIGH YIELD    CIATION    SECURITIES   GOVERNMENTS    RETURN      SECTORS
TRANSACTION EXPENSES                   SERIES       SERIES      SERIES       SERIES       SERIES       SERIES       SERIES
- -----------------------------------  ----------   ----------   ---------   ----------   ----------   ----------   ----------
<S>                                  <C>          <C>          <C>         <C>          <C>          <C>          <C>
Sales Load Imposed on Purchases....         0           0            0         0              0          0             0
Deferred Sales Load (as a
  percentage of Participant's
  Account Value withdrawn) (1)
  Account Year
    1..............................         6%          6%           6%        6%             6%         6%            6%
    2..............................         6%          6%           6%        6%             6%         6%            6%
    3..............................         5%          5%           5%        5%             5%         5%            5%
    4..............................         5%          5%           5%        5%             5%         5%            5%
    5..............................         4%          4%           4%        4%             4%         4%            4%
    6..............................         4%          4%           4%        4%             4%         4%            4%
    7..............................         3%          3%           3%        3%             3%         3%            3%
    thereafter.....................         0%          0%           0%        0%             0%         0%            0%
Exchange fee (2)...................         0           0            0         0              0          0             0
 
<CAPTION>
ANNUAL ACCOUNT FEE                                                $30 Per Participant's Account
- -----------------------------------
SEPARATE ACCOUNT ANNUAL EXPENSES
- -----------------------------------
<S>                                  <C>          <C>          <C>         <C>          <C>          <C>          <C>
(as a percentage of average
separate account assets)
Mortality and Expense Risk Fees....      1.25%       1.25%        1.25%     1.25%          1.25%      1.25%         1.25%
Distribution Expense Charge (3)....      0.15%       0.15%        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%      0.00%         0.00%
Total Separate Account Annual
  Expenses.........................      1.40%       1.40%        1.40%     1.40%          1.40%      1.40%         1.40%
<CAPTION>
SERIES FUND ANNUAL EXPENSES
- -----------------------------------
<S>                                  <C>          <C>          <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%      0.70%         0.75%
Other Expenses.....................      0.01%       0.12%        0.08%     0.08%          0.14%      0.06%         0.09%
Total Series Fund Annual
  Expenses.........................      0.59%       0.87%        0.83%     0.63%          0.89%      0.76%         0.84%
</TABLE>
    
 
- ------------------------
(1) A portion of  the Participant's Account may  be withdrawn each year  without
    imposition  of any withdrawal charge, and  after a Purchase Payment has been
    held by the Company for seven  years the entire Participant's Account  Value
    may be withdrawn free of the withdrawal charge.
 
(2)  A Market  Value Adjustment  may be imposed  on amounts  transferred from or
    within the Fixed Account.
 
(3) The  Distribution Expense  Charge is  imposed only  during the  first  seven
    Account Years. This charge may be deemed a deferred sales charge.
 
                                       9
<PAGE>
                                    EXAMPLE
 
    If  you surrender your Certificate 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      5 YEARS     10 YEARS
                                                         -----------  -----------  -----------  -----------
<S>                                                      <C>          <C>          <C>          <C>
Money Market Series                                       $      74    $     107    $     143    $     232
High Yield Series                                                77          116          158          261
Capital Appreciation Series                                      77          115          155          256
Government Securities Series                                     75          109          145          236
World Governments Series                                         77          117          159          263
Total Return Series                                              76          113          152          249
Managed Sectors Series                                           77          115          156          257
</TABLE>
    
 
    If  you 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      5 YEARS     10 YEARS
                                                        -----------  -----------  -----------  -----------
<S>                                                     <C>          <C>          <C>          <C>
Money Market Series                                      $      20    $      62    $     107    $     232
High Yield Series                                               23           71          122          261
Capital Appreciation Series                                     23           70          119          256
Government Securities Series                                    21           64          109          236
World Governments Series                                        23           72          123          263
Total Return Series                                             22           68          116          249
Managed Sectors Series                                          23           70          120          257
</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.
 
           CONDENSED FINANCIAL INFORMATION--ACCUMULATION UNIT VALUES
 
    The following information should  be read in  conjunction with the  Variable
Account's  financial statements included  elsewehere in this  Prospectus, all of
which has been audited  by Deloitte & Touche  LLP, independent certified  public
accountants.
 
   
<TABLE>
<CAPTION>
                                     PERIOD ENDED                           YEAR ENDED DECEMBER 31,
                                     DECEMBER 31,    ----------------------------------------------------------------------
                                         1989*          1990        1991        1992        1993        1994        1995
                                     -------------   ----------  ----------  ----------  ----------  ----------  ----------
<S>                                  <C>             <C>         <C>         <C>         <C>         <C>         <C>
CAPITAL APPRECIATION SERIES
  Unit Value:
    Beginning of period              $    10.0000    $  10.1193  $   9.0168  $  12.5296  $  14.0559  $  16.3574  $  15.5512
    End of period                    $    10.1193    $   9.0168  $  12.5296  $  14.0559  $  16.3574  $  15.5512  $  20.6225
  Units outstanding end of period         264,632     3,677,247   7,517,358   8,168,037   7,272,302   6,184,731   6,615,207
GOVERNMENT SECURITIES SERIES
  Unit Value:
    Beginning of period              $    10.0000    $  10.0333  $  10.7567  $  12.2849  $  12.9408  $  13.8738  $  13.3872
    End of period                    $    10.0333    $  10.7567  $  12.2849  $  12.9408  $  13.8738  $  13.3872  $  15.5323
  Units outstanding end of period         179,505     2,723,676   5,194,019   4,761,049   4,708,841   4,235,203   3,535,152
HIGH YIELD SERIES
  Unit Value:
    Beginning of period              $    10.0000    $   9.8487  $   8.3800  $  12.1924  $  13.8294  $  16.0549  $  15.4801
    End of period                    $     9.8487    $   8.3800  $  12.1924  $  13.8294  $  16.0549  $  15.4801  $  17.8678
  Units outstanding end of period          24,369       247,285     795,298   1,031,001   1,087,265     839,825   1,068,412
MANAGED SECTORS SERIES
  Unit Value:
    Beginning of period              $    10.0000    $   9.8911  $   8.7393  $  13.9725  $  14.6738  $  15.0587  $  14.5653
    End of period                    $     9.8911    $   8.7393  $  13.9725  $  14.6738  $  15.0587  $  14.5653  $  18.9987
  Units outstanding end of period         126,499     1,410,497   2,409,951   2,768,568   2,431,072   2,066,642   2,150,361
MONEY MARKET SERIES
  Unit Value:
    Beginning of period              $    10.0000    $  10.0971  $  10.7366  $  11.2031  $  11.4176  $  11.5560  $  11.8185
    End of period                    $    10.0971    $  10.7366  $  11.2031  $  11.4176  $  11.5560  $  11.8185  $  12.2910
  Units outstanding end of period         221,039     5,562,419   6,380,774   4,115,845   3,081,737   3,873,044   3,453,907
TOTAL RETURN SERIES
  Unit Value:
    Beginning of period              $    10.0000    $  10.1677  $  10.2969  $  12.3469  $  13.2211  $  14.7834  $  14.2495
    End of period                    $    10.1677    $  10.2969  $  12.3469  $  13.2211  $  14.7834  $  14.2495  $  17.8165
  Units outstanding end of period         391,244     8,211,655  15,599,909  16,375,301  15,806,723  14,225,539  13,106,997
WORLD GOVERNMENTS SERIES
  Unit Value:
    Beginning of period              $    10.0000    $  10.2725  $  11.4930  $  13.0187  $  12.8985  $  15.1215  $  14.2437
    End of period                    $    10.2725    $  11.4930  $  13.0187  $  12.8985  $  15.1215  $  14.2437  $  16.2514
  Units outstanding end of period          20,710       748,280   2,220,300   2,205,650   2,300,611   1,967,375   1,730,002
</TABLE>
    
 
- ------------------------
* From July 13, 1989 (date of commencement of operations) to December 31, 1989.
 
                                       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 the Purchase Payment, 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 of  4% 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
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 actuarial
services, New London Trust, F.S.B., a federally chartered savings bank, Sun Life
Financial Services Limited,  which provides  off-shore administrative  services,
and Massachusetts Casualty Insurance Company, which issues individual disability
income policies.
    
 
    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. A Purchase Payment 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. 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. 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
 
                                       12
<PAGE>
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 contract.
 
    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  and distribution  expense risks
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  4%
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 4%  per
year;  however, the Company is not obligated to credit any interest in excess of
4% per  year. 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 4% PER  YEAR 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  THE
MINIMUM GUARANTEE OF 4% 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  reflects the investment performance of
the  Series  Fund.  Values   of  Series  Fund  shares   held  by  the   Variable
 
                                       13
<PAGE>
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  Purchase
Payment  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  as may  be 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  expense risks,  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
single  premium 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 seven  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.
 
   
    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 is  solely
that of MFS. The Company undertakes no obligation in this respect.
    
 
    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.
 
                                       15
<PAGE>
        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 Company will not accept a Purchase Payment to be  allocated
to  a Participant's Account  which is less  than $5,000. In  addition, the prior
approval of the Company is required before it will accept a Purchase Payment  in
excess of $1,000,000. Only one Purchase Payment may be made per Certificate.
 
    A  completed  Application  and the  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
Purchase  Payment  is then  credited to  the  Participant's Account.  A 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.
 
(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.
 
(3) ALLOCATION OF NET PURCHASE PAYMENT
 
    The  Net  Purchase Payment  is that  portion of  the Purchase  Payment which
remains after  deduction of  any  applicable premium  or  similar tax.  The  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 particular Participant's Application.
 
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 of a Participant's Account, if any, 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  for 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  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
 
                                       16
<PAGE>
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 distribution expense risk.
 
FIXED ACCUMULATION VALUE
 
    The fixed accumulation  value of a  Participant's Account, if  any, 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) with durations  of
from  one  to ten  years. The  period(s) elected  will determine  the Guaranteed
Interest Rate(s). The Purchase  Payment, or the portion  thereof (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 of
Coverage or, in the case of a  transfer, on the effective date of the  transfer,
and  end the number of  calendar years 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
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").
 
    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.  A  new
Guarantee Period of the same duration as the previous
 
                                       17
<PAGE>
Guarantee  Period  will  commence  automatically  at  the  end  of  the previous
Guarantee Period unless the Company receives, prior to the end of such Guarantee
Period, a written election  by the Participant of  a different 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.
 
GUARANTEED INTEREST RATES
 
    The Company periodically  will establish an  applicable Guaranteed  Interest
Rate  for each of  the ten Guarantee Periods.  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, but once
established 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  4% 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  for a  particular  duration
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 the
minimum guaranteed rate of 4% for any Guarantee Period.
 
TRANSFER PRIVILEGE
 
    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 be  made
in  any Account  Year; (2)  the amount  being transferred  may not  be less than
$1,000,  unless  the  total  Participant's  Account  Value  attributable  to   a
Sub-Account  or Guarantee Amount is being transferred; and (3) any Participant's
Account Value remaining  in a Sub-Account  or Guarantee Amount  may not be  less
than $100. In addition, transfers of all or a portion 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. 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.
 
        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. Amounts
withdrawn may not be redeposited.
 
    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
 
                                       18
<PAGE>
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 at the end
of the Valuation Period during which the cash withdrawal is effective.
 
    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
 
    If a cash withdrawal is made, a withdrawal charge (contingent deferred sales
charge) may be assessed by the Company. During the first seven Account Years, up
to  10% of the Net Purchase  Payment may be withdrawn in  each Account Year on a
non-cumulative basis without  the imposition of  the withdrawal charge.  Amounts
withdrawn from a Participant's Account in excess of such amount (adjusted by any
applicable  Market Value  Adjustment) will be  subject to  the withdrawal charge
assessed against such excess amount as follows:
 
                                       19
<PAGE>
 
<TABLE>
<CAPTION>
ACCOUNT YEAR       WITHDRAWAL CHARGE
- -------------  -------------------------
<S>            <C>
      1                       6%
      2                       6%
      3                       5%
      4                       5%
      5                       4%
      6                       4%
      7                       3%
 thereafter                   0%
</TABLE>
 
    The withdrawal charge is  not imposed after the  end of the seventh  Account
Year,  nor is the withdrawal charge imposed upon payment of the death benefit or
upon amounts applied to purchase an annuity.
 
    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.
 
    In no  event  shall the  aggregate  withdrawal charges  (together  with  the
distribution  expense  charge  described  under "How  the  Contract  Charges Are
Assessed") assessed against a  Participant's Account exceed  9% of the  Purchase
Payment.  The  Company may,  upon  notice to  the  Owner, modify  the withdrawal
charges provided  that  such  modification shall  apply  only  to  Participant's
Accounts  established  after  the  effective  date  of  such  modification  (See
"Modification").
 
    For illustrative examples of withdrawals, surrenders, withdrawal charges and
the Market Value Adjustment, see Appendix C.
 
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".
 
                                       20
<PAGE>
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  after  deduction  of  any applicable  Account  Fee  and  before
deduction of any applicable withdrawal charge.
 
    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. If  the applicable Guaranteed Interest Rate  is
more  than .50% higher  than the Current  Rate, the application  of the MVA will
result in a higher  payment upon withdrawal. Otherwise,  the application of  the
MVA will result in a lower payment upon withdrawal.
 
    The  Market  Value  Adjustment  is  determined  by  the  application  of the
following formula:
 
     1 + I        N/12
 ( -----------)
  1 + J + .005               - 1
 
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 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"), and
 
    N  is the number of complete months remaining in the Guarantee Period of the
Guarantee Amount subject to the Market Value Adjustment.
 
    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;
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 settlement of the death benefit by
the Participant which is in effect on
 
                                       21
<PAGE>
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 the  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 the 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  the  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 and  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 Purchase
Payment made with  respect to the  Participant's Account, minus  the sum of  all
partial withdrawals; (3) 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 (unless  prohibited
by  applicable state law) (4) the Participant's  Account Value on the Seven Year
Anniversary immediately  preceding  the  date  the  death  benefit  election  is
effective  or is deemed to become effective, adjusted for any subsequent partial
withdrawals.
 
                     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 administrative
expenses 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  distribution  expense charges;  and (3)  as withdrawal  charges (contingent
deferred sales  charges). In  addition,  certain 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.
 
ACCOUNT FEE
 
    Each year  on  the  Account  Anniversary,  the  Company  deducts  from  each
Participant's Account an annual account administration fee ("Account Fee") equal
to  the lesser of $30 and 2% of  the Participant's Account Value to reimburse it
for administrative  expenses  relating  to  the issue  and  maintenance  of  the
Contract,  the Certificate and  the Participant's Account.  If the 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. 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
 
                                       22
<PAGE>
before  the  Annuity  Commencement  Date. After  the  Annuity  Commencement, the
Account Fee will be deducted in equal amounts from each variable annuity payment
made during the year. No deduction will be made from fixed annuity payments.
 
    The Contract provides that the Company  may modify the Account Fee  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.
 
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.
 
CHARGES AGAINST THE VARIABLE ACCOUNT FOR MORTALITY AND EXPENSE RISKS AND
DISTRIBUTION EXPENSE CHARGES
 
    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 1.25%. 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,  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 charges (contingent deferred sales charges) and the  distribution
expense charge described below. However, the withdrawal charges and distribution
expense  charges  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  Company assumes  the risk  that withdrawal  charges assessed  under the
Contracts may  be  insufficient to  compensate  the  Company for  the  costs  of
distributing the Contracts. For assuming such risk the Company makes a deduction
from  the Variable  Account at the  end of  each Valuation Period  for the first
seven Account Years  (during both  the accumulation period  and, if  applicable,
after annuity payments begin) at an effective annual rate of 0.15% (the staff of
the  Securities  and  Exchange Commission  deems  this charge  a  deferred sales
charge). No deduction  is made  after the  seventh Account  Anniversary. If  the
distribution  expense charge is  insufficient to cover  the actual risk assumed,
the Company will bear the loss; however, if the charge is more than  sufficient,
any  excess will be profit to the Company  and would be available for any proper
corporate purpose. In  no event will  the distribution expense  charges and  the
withdrawal  charges assessed  against a Participant's  Account exceed  9% of the
Purchase Payment.
 
                                       23
<PAGE>
   
    The  Contract provides that the Company may modify the mortality and expense
risk and distribution  expense charges; however,  such modification shall  apply
only with respect to Participant's Accounts established after the effective date
of such modification (See "Modification"). For the year ended December 31, 1995,
mortality  and  expense  risk and  distribution  expense charges  were  the only
expenses of the Variable Account.
    
 
WITHDRAWAL CHARGES
 
    No deduction for sales charges is  made from a Purchase Payment. However,  a
withdrawal  charge (contingent  deferred sales  charge) of  up to  6% of certain
amounts withdrawn,  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 6.86% of  the
Purchase Payment (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 85th 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 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
 
                                       24
<PAGE>
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
4%. 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 to the Contract 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, as elected. In the
event of the death 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 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 yearly  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
 
- ------------------------
* The election of this annuity option may result in the imposition of a penalty
tax.
 
                                       25
<PAGE>
than 4% 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 at  the  end of  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 4%  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 4% 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 to  the Contract 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 at  the  end  of 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  of 4%  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.
 
VARIABLE 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  4% per  year used to
establish the  Annuity  Payment Rates  found  in  the Contract.  The  factor  is
0.99989255 for a one day Valuation Period.
 
    For  a hypothetical example  of the calculation  of the value  of a Variable
Annuity Unit, see Appendix A.
 
                                       26
<PAGE>
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  between 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  of 4%; and  (b) the monthly  fixed annuity payment,  when
this  payment is based on  the minimum guaranteed interest  rate of 4% 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.
 
                          OTHER CONTRACTUAL PROVISIONS
 
PAYMENT LIMITS
 
    Only one Purchase Payment may be  made per Certificate. The single  Purchase
Payment  credited  to each  Participant's Account  must be  at least  $5,000. In
addition, the prior approval of the Company is required before it will accept  a
Purchase Payment in excess of $1,000,000.
 
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  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.
 
                                       27
<PAGE>
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, the Participant's Account Value,  plus
or  minus any  applicable Market  Value Adjustment,  must be  distributed to the
Beneficiary, if then alive, either (1) within five years after the date of death
of the  Participant, or  (2)  over some  period not  greater  than the  life  or
expected  life of  the Beneficiary, with  annuity payments  beginning within one
year after  the date  of  death of  the Participant.  The  person named  as  the
Participant's Beneficiary shall be considered the designated beneficiary for the
purposes  of Section 72(s)  of the Internal  Revenue Code and  if no person then
living has  been  so  named,  then the  Annuitant  shall  automatically  be  the
designated beneficiary for this purpose.
 
    These mandatory distribution requirements will not apply when the designated
beneficiary  is the spouse of the Participant,  if the spouse elects to continue
the Certificate in the spouse's own  name, as Participant. When the  Participant
was also the Annuitant, the surviving spouse (if the designated beneficiary) may
elect   to  be  named  as  both  Participant  and  Annuitant  and  continue  the
Certificate, but if that  election is not made,  the Death Benefit provision  of
the Contract shall then be controlling. In all other cases where the Participant
and  the Annuitant are the  same individual, the Death  Benefit provision of the
Contract controls.
 
    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  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.
 
                                       28
<PAGE>
    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  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 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.
 
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. In either event, 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 have been approved 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
 
                                       29
<PAGE>
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 in
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, distribution 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 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 redeemed 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
 
    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 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.
 
                                       30
<PAGE>
    With  respect  to  Individual   Retirement  Accounts,  under  the   Employee
Retirement  Income Security Act of 1974  ("ERlSA") 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 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 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.
 
                                       31
<PAGE>
    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.
 
    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 10 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
 
                                       32
<PAGE>
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 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.
 
    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.  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.
 
                                       33
<PAGE>
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.
Only  one Purchase Payment per Certificate will be accepted (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."
 
                        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, among other things, maintaining the  books and records of the  Variable
Account  and the  Sub-Accounts, and  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.
 
                         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  wholly-owned 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
6.86% of Purchase Payments.  In addition to commissions,  the Company may,  from
time  to time, pay or allow additional promotion 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. During 1993, 1994 and 1995 approximately $13,857,
$424  and $85, respectively, was paid to and retained by Clarendon in connection
with the distribution of the Contracts.
    
 
                                       34
<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 56.
 
<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 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.
    
                                       35
<PAGE>
   
    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 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-
    
                                       36
<PAGE>
   
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 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.
 
                                       37
<PAGE>
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.
    
                                       38
<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
 
                                       39
<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
 
                                       40
<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.
 
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.
    
                                       41
<PAGE>
   
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. The allocated compensation of the named executive officers is
as follows:
 
<TABLE>
<CAPTION>
                                            ALLOCATED COMPENSATION
                                           -------------------------   OTHER ALLOCATED
NAME/POSITION                              YEAR    SALARY     BONUS      COMPENSATION
- ----------------------------------------   ----   --------   -------   ----------------
<S>                                        <C>    <C>        <C>       <C>
John D. McNeil                             1995   $ 76,854   $29,344
Chairman                                   1994   $ 59,189   $12,284
                                           1993   $ 16,655   $ 3,482
David D. Horn                              1995   $176,800   $52,728       $ 5,787
Senior Vice President                      1994   $ 68,985   $22,995
and General Manager                        1993   $ 64,818   $22,160
Robert A. Bonner,                          1995   $134,227   $24,824       $ 9,892
Vice President, Pensions                   1994   $111,632   $15,706
                                           1993   $ 97,160   $18,877
C. James Prieur,                           1995   $ 95,416   $36,650
Vice President, Investments                1994   $ 82,918   $17,398
                                           1993   $ 80,621   $20,155
Robert K. Leach,                           1995   $138,500   $25,371
Vice President, Individual Annuities       1994   $132,248   $13,500
                                           1993   $125,000   $13,500
</TABLE>
    
    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.
 
                                       42
<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
 
                                       43
<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  the
Contracts and other contracts participating in the Variable Account which impose
certain  contract  charges  that  are different  from  those  imposed  under the
Contracts.
 
                              -------------------
 
                                       44
<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
 
                                       45
<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
 
                                       46
<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
 
                                       47
<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
 
                                       48
<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
 
                                       49
<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
 
                                       50
<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
 
                                       51
<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
 
                                       52
<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.
 
                                       53
<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>
 
                                       54
<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
 
                                       55
<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.
 
                                       56
<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.
 
                                       57
<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.
 
                                       58
<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.
 
                                       59
<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.
 
                                       60
<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.
 
                                       61
<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
 
                                       62
<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.
 
                                       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
 
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>
 
                                       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
 
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.
 
                                       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
 
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.
 
                                       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
 
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>
 
                                       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
 
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.
 
                                       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
 
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.
 
                                       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
 
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%.
 
                                       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
 
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.
 
                                       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
 
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.
 
                                       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
 
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
 
                                       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
 
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
 
                                       74
<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
   
REGUS-1  5/96
    
<PAGE>
                                   APPENDIX A
 
ILLUSTRATIVE EXAMPLE OF VARIABLE ACCUMULATION UNIT VALUE CALCULATIONS:
 
    Suppose the net asset value of a Series Fund share at the end of the current
valuation  period is $18.38;  at the end of  the immediately preceding valuation
period was  $18.32;  the  Valuation Period  is  one  day; and  no  dividends  or
distributions  caused Series Fund shares to  go "ex-dividend" during the current
Valuation Period. $18.38 divided  by $18.32 is  1.00327511. Subtracting the  one
day  risk factor  for mortality and  expense risks and  the distribution expense
charge of .00003809 (the daily equivalent of the current maximum charge of 1.40%
on an annual basis) gives a net investment factor of 1.00323702. If the value of
the variable accumulation  unit for the  immediately preceding valuation  period
had  been  14.5645672,  the value  for  the  current valuation  period  would be
14.6117130 (14.5645672 X 1.00323702).
 
ILLUSTRATIVE EXAMPLE OF VARIABLE ANNUITY UNIT VALUE CALCULATIONS:
 
    Suppose the circumstances of  the first example exist,  and the value of  an
annuity unit for the immediately preceding valuation period had been 12.3456789.
If  the first variable annuity payment is determined by using an annuity payment
based on an assumed interest rate of 4% per year, the value of the annuity  unit
for  the current valuation  period would be  12.3843113 (12.3456789 X 1.00323702
(the Net Investment Factor) X 0.99989255).  0.99989255 is the factor, for a  one
day Valuation Period, that neutralizes the assumed interest rate of four percent
(4%) per year used to establish the Annuity Payment Rates found in the Contract.
 
ILLUSTRATIVE EXAMPLE OF VARIABLE ANNUITY PAYMENT CALCULATIONS:
 
    Suppose  that a Participant's  Account is credited  with 8,765.4321 variable
accumulation units of  a particular  Sub-Account but  is not  credited with  any
fixed  accumulation units;  that the  variable accumulation  unit value  and the
annuity unit value for the particular Sub-Account for the valuation period which
ends immediately  preceding the  annuity commencement  date are  14.5645672  and
12.3456789  respectively; that the  annuity payment rate for  the age and option
elected is $6.78 per $1,000; and that the annuity unit value on the day prior to
the second  variable annuity  payment  date is  12.3843113. The  first  variable
annuity  payment would  be $865.57  (8,765.4321 X  14.5645672 X  6.78 divided by
1,000). The number of annuity units  credited would be 70.1112 ($865.57  divided
by 12.3456789) and the second variable annuity payment would be $868.28 (70.1112
X 12.3843113).
 
                                   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 April 30, 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 April 30, 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%
Pennsylvania                        --                  2.00%
South Dakota                        --                  1.25%
West Virginia                       1.00%               1.00%
Wyoming                             --                  1.00%
</TABLE>
 
- ------------------------
*No tax on purchase payments received on or after July 1, 1995.
 
                                       75
<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)
 
    These examples assume the following:
 
        1)  The Purchase Payment was $10,000
 
        2)   The date of full surrender  or partial withdrawal occurs during the
    3rd Account Year and
 
           a)  the Participant's Account Value is $12,000 and is attributable to
       the value of Variable Accumulation Units of one Sub-Account,
 
           b)  no previous partial withdrawals have been made.
 
EXAMPLE A--FULL SURRENDER:
 
        1)  10% or .10 of  the Purchase Payment is available without  imposition
    of a withdrawal charge: (.10 X $10,000 = $1,000).
 
        2)   The balance of  the full surrender ($12,000  - $1,000 = $11,000) is
    subject to the withdrawal charge applicable during the 3rd Account Year  (5%
    or .05).
 
        3)  The amount of the withdrawal charge is .05 X $11,000 = $550.
 
        4)  The amount of the full surrender is $12,000 - $550 = $11,450.
 
EXAMPLE B--PARTIAL WITHDRAWAL (IN THE AMOUNT OF $2,000):
 
        1)   10% or .10 of the  Purchase Payment is available without imposition
    of a withdrawal charge: (.10 X $10,000 = $1,000).
 
        2)  The balance of the partial withdrawal ($2,000 - $1,000 = $1,000)  is
    subject  to the withdrawal charge applicable during the 3rd Account Year (5%
    or .05).
 
        3)  The amount of the withdrawal charge is equal to the amount  required
    to complete the partial withdrawal ($2,000 - $1,000 = $1,000) divided by 1 -
    .05  or .95 less the amount required  to complete the balance of the partial
    withdrawal.
 
        Withdrawal Charge = $1,000 - $1,000
                          ---------------
                           .95
 
                        = $52.63
 
    In this  example,  in  order  for the  Participant  to  receive  the  amount
requested ($2,000), a gross withdrawal of $2052.63 must be processed with $52.63
representing the withdrawal charge calculated above.
 
PART 2--FIXED ACCOUNT--EXAMPLES OF THE MARKET VALUE ADJUSTMENT (MVA)
 
    The MVA factor is:
 
                        N/12
  (  1 + I
     -------------
     1 + J + .005  )        -1
 
    These examples assume the following:
 
        1)   the Guarantee Amount was allocated  to a four year Guarantee Period
    with a Guaranteed Interest Rate of 5% or .05 (l).
 
        2)  the date  of surrender is  two years from the  Expiration Date (N  =
    24).
 
        3)    the value  of the  Guarantee Amount  on the  date of  surrender is
    $11,025 and,
 
        4)  no transfers or partial withdrawals affecting this Guarantee  Amount
    have been made
 
                                       76
<PAGE>
        5)   withdrawal charges,  if any, are  calculated in the  same manner as
    shown in the examples in Part 1.
 
EXAMPLE OF A NEGATIVE MVA:
 
    Assume that on the date of surrender, the current rate (J) is 7% or .07.
 
                                             N/12
 The MVA factor =    (  1 + l
                        --------------
                        1 + J + .005   )             -1
                                             24/12
                =    (  1 + .05
                        --------------
                        1 + .07 + .005 )             -1
 
                =    (.977)2 -1
 
                =    .954 -1
 
                = -  .046
 
    The value  of  the Guarantee  Amount  is multiplied  by  the MVA  factor  to
determine the MVA
 
                          $11,025 X (-.046) = -$507.15
 
         -$507.15 represents the MVA that will be deducted from the value of the
    Guarantee Amount before the application of any withdrawal charge.
 
EXAMPLE OF A POSITIVE MVA:
 
    Assume that on the date of surrender, the current rate (J) is 4% or .04.
 
                                             N/12
 The MVA factor =    (  1 + l
                        --------------
                        1 + J + .005   )             -1
                                             24/12
                =    (  1 + .05
                        --------------
                        1 + .04 + .005 )             -1
 
                =    (1.005)2 -1
 
                =    1.010 -1
 
                =    .010
 
    The value  of  the Guarantee  Amount  is multiplied  by  the MVA  factor  to
determine the MVA
 
                            $11,025 X .010 = $110.25
 
          $110.25 represents  the MVA that  would be  added to the  value of the
    Guarantee Amount before the application of any withdrawal charge.
 
    If the above examples had been  for partial withdrawals, the MVA's would  be
reduced  proportionally. For example, if only 25%  of the value of the Guarantee
Amount were being  surrendered, the  MVA would be  -$126.79 and  $27.56 for  the
negative MVA and positive MVA, respectively.
 
                                       77
<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,  based upon a hypothetical
initial Purchase Payment of  $1,000, calculated in  accordance with the  formula
set out below the table.
 
   
                          AVERAGE ANNUAL TOTAL RETURN
                        PERIOD ENDING DECEMBER 31, 1995
    
 
   
<TABLE>
<CAPTION>
                                     1 YEAR  5 YEAR
                                     PERIOD  PERIOD  LIFE*   DATE OF INCEPTION
                                     ------  ------  ------  -----------------
<S>                                  <C>     <C>     <C>     <C>
Capital Appreciation Series........  24.90%  16.83%  11.60%   November 2, 1989
Government Securities Series.......   9.48%   6.64%   6.75%   November 8, 1989
High Yield Series..................   9.04%  15.42%   9.48%   December 6, 1989
Managed Sectors Series.............  23.05%  15.79%  10.31%   November 2, 1989
Total Return Series................  17.60%  10.28%   8.80%   November 2, 1989
World Governments Series...........   7.72%   6.26%   7.67%  November 24, 1989
</TABLE>
    
 
- ------------------------
   
*From Date of Inception of the Sub-Account investing in the Series.
    
 
 The  Average  Annual  Total Return  for  each  period in  the  table  above 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 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 period.
 
   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  $30 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.
 
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.
 
                                       78
<PAGE>
                    NON-STANDARDIZED INVESTMENT PERFORMANCE:
 
   
$10,000 INVESTED IN
                     ...WOULD HAVE GROWN TO THIS AMOUNT ON
THIS SUB-ACCOUNT UNDER
A
                               DECEMBER 31, 1995*
    
REGATTA CONTRACT
THIS MANY YEARS AGO...
 
   
<TABLE>
<CAPTION>
                              CAPITAL APPRECIATION SERIES       GOVERNMENT SECURITIES SERIES             HIGH YIELD SERIES
                           ---------------------------------  ---------------------------------  ---------------------------------
 NUMBER                               CUMULATIVE   COMPOUND              CUMULATIVE   COMPOUND              CUMULATIVE   COMPOUND
   OF                                   GROWTH      GROWTH                 GROWTH      GROWTH                 GROWTH      GROWTH
 YEARS        PERIODS        AMOUNT      RATE        RATE       AMOUNT      RATE        RATE       AMOUNT      RATE        RATE
- -------- ----------------- ---------- ----------  ----------  ---------- ----------  ----------  ---------- ----------  ----------
<S>      <C>               <C>        <C>         <C>         <C>        <C>         <C>         <C>        <C>         <C>
 1         1/1/95-12/31/95 $13,261.09    32.61%      32.61%   $11,602.41    16.02%      16.02%   $11,542.40    15.42%      15.42%
 2         1/1/94-12/31/95 $12,607.48    26.07%      12.28%   $11,195.41    11.95%       5.81%   $11,129.15    11.29%       5.49%
 3         1/1/93-12/31/95 $14,671.78    46.72%      13.63%   $12,002.61    20.03%       6.27%   $12,920.17    29.20%       8.92%
 4         1/1/92-12/31/95 $16,458.99    64.59%      13.27%   $12,643.46    26.43%       6.04%   $14,654.84    46.55%      10.03%
 5         1/1/91-12/31/95 $22,871.15   128.71%      17.99%   $14,439.75    44.40%       7.62%   $21,322.07   113.22%      16.35%
 Life     11/2/89-12/31/95 $20,622.53   106.23%      12.46%   $15,532.34    55.32%       7.43%   $17,867.80    78.68%      10.03%
</TABLE>
    
 
<TABLE>
<CAPTION>
                                MANAGED SECTORS SERIES               TOTAL RETURN SERIES             WORLD GOVERNMENTS SERIES
                           ---------------------------------  ---------------------------------  ---------------------------------
                                      CUMULATIVE   COMPOUND              CUMULATIVE   COMPOUND              CUMULATIVE   COMPOUND
                                        GROWTH      GROWTH                 GROWTH      GROWTH                 GROWTH      GROWTH
                             AMOUNT      RATE        RATE       AMOUNT      RATE        RATE       AMOUNT      RATE        RATE
                           ---------- ----------  ----------  ---------- ----------  ----------  ---------- ----------  ----------
<S>      <C>               <C>        <C>         <C>         <C>        <C>         <C>         <C>        <C>         <C>
 1         1/1/95-12/31/95 $13,043.79    30.44%      30.44%   $12,503.26    25.03%      25.03%   $11,409.59    14.10%      14.10%
 2         1/1/94-12/31/95 $12,616.38    26.16%      12.32%   $12,051.68    20.52%       9.78%   $10,747.22     7.47%       3.67%
 3         1/1/93-12/31/95 $12,947.29    29.47%       8.99%   $13,475.80    34.76%      10.45%   $12,599.94    25.99%       8.01%
 4         1/1/92-12/31/95 $13,597.19    35.97%       7.98%   $14,429.95    44.30%       9.60%   $12,483.11    24.83%       5.70%
 5         1/1/91-12/31/95 $21,739.45   117.39%      16.80%   $17,302.82    73.03%      11.59%   $14,140.26    41.40%       7.17%
 Life     11/2/89-12/31/95 $18,998.65    89.99%      10.97%   $17,816.48    78.16%       9.82%   $16,251.43    62.51%       8.28%
</TABLE>
 
- ------------------------
*For  purposes of  determining these  investment results,  the actual investment
 performance of  each Series  of MFS/Sun  Life Series  Trust is  reflected  from
 October  27, 1989,  the date  of commencement  of sales  of the  Contracts. The
 charges imposed under the Contract against  the assets of the Variable  Account
 for  mortality  and  expense risks  and  distribution expense  risks  have been
 deducted. However, the annual Account Fee  is not reflected and these  examples
 do not assume surrender at the end of the period.
 
                                       79
<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 adviser.
   
    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 1.9 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.
    
 
                                       80
<PAGE>

                                   PART II

                   INFORMATION NOT REQUIRED IN PROSPECTUS.

Item 14.  Other Expenses of Issuance and Distribution

          Not applicable.

Item 15.  Indemnification of Directors and Officers

          Article 8 of the By-Laws of Sun Life Assurance Company of Canada
(U.S.) provides for indemnification of directors and officers as follows:

          "Section 8.01 (a).  Every person who is or was a director, officer
or employee of this corporation or of any other corporation which he served
at the request of this corporation and in which this corporation owns or owned
shares of capital stock or of which it is or was a creditor shall have a right
to be indemnified by this corporation against all liability and reasonable
expenses incurred by him in connection with or resulting from any claim,
action, suit or proceeding in which he may become involved as a party or
otherwise by reason of his being or having been a director, officer or
employee of this corporation or such other corporation, provided (1) said
claim, action, suit or proceeding shall be prosecuted to a final determination
and he shall be vindicated on the merits, or (2) in the absence of such a
final determination vindicating him on the merits, the board of directors
shall determine that he acted in good faith and in a manner he reasonably
believed to be in or not opposed to the best interests of the corporation,
and, with respect to any criminal action or proceeding, had no reasonable
cause to believe his conduct was unlawful; said determination to be made by
the board of directors acting through a quorum of disinterested directors, or
in its absence on the opinion of counsel.

          (b)  For purposes of the preceding subsection: (1) "liability and
reasonable expenses" shall include but not be limited to reasonable counsel
fees and disbursements, amounts of any judgment, fine or penalty, and
reasonable amounts paid in settlement; (2) "claim, action, suit or proceeding"
shall include every such  claim, action, suit or proceeding, whether civil or
criminal, derivative or otherwise, administrative, judicial or legislative,
any appeal relating thereto, and shall include any reasonable apprehension or
threat of such a claim, action, suit or proceeding; (3) a settlement, plea of
nolo contendere, consent judgment, adverse civil judgment, or conviction shall
not of itself create a presumption that the conduct of the person seeking
indemnification did not meet the standard of conduct set forth in subsection
(a)(2) hereof.

                                     II-1

<PAGE>

          (c)  Notwithstanding the foregoing, the following limitations shall
apply with respect to any action by or in the right of the Corporation: (1) no
indemnification shall be made in respect of any claim, issue or matter as to
which the person seeking indemnification shall have been adjudged to be liable
for negligence or misconduct in the performance of his duty to the corporation
unless and only to the extent that the Court of Chancery of the State of
Delaware or the court in which such action or suit was brought shall determine
upon application that, despite the adjudication of liability but in view of
all the circumstances of the case, such person is fairly and reasonably
entitled to indemnity for such expenses which the Court of Chancery or such
other court shall deem proper; and (2) indemnification shall extend only to
reasonable expenses, including reasonable counsel's fees and disbursements.

          (d)  The right of indemnification shall extend to any person
otherwise entitled to it under this by-law whether or not that person
continues to be a director, officer or employee of this corporation or such
other corporation at the time such liability or expense shall be incurred. The
right of indemnification shall extend to the legal representative and heirs of
any person otherwise entitled to indemnification.  If a person meets the
requirements of this by-law with respect to some matters in a claim, action,
suit or proceeding, but not with respect to others, he shall be entitled to
indemnification as the former.  Advances against liability and expenses may be
made by the corporation on terms fixed by the board of directors subject to an
obligation to repay if indemnification proves unwarranted.

          (e)  This by-law shall not exclude any other rights of
indemnification or other rights to which any director, officer or employee may
be entitled to by contract, vote of the stockholders or as a matter of law. If
any clause, provision or application of this section shall be determined to be
invalid, the other clauses, provisions or applications of this section shall
not be affected but shall remain in full force and effect.  The provisions of
this by-law shall be applicable to claims, actions, suits or proceedings made
or commenced after the adoption hereof, whether arising from acts or omissions
to act occurring before or after the adoption hereof.

          (f)  Nothing contained in this by-law shall be construed to protect
any director or officer of the corporation against any liability to the
corporation or its security  holders to which he would otherwise be subject by
reason of wilful  misfeasance, bad faith, gross negligence or reckless
disregard of the duties involved in the conduct of his office."

                                     II-2


<PAGE>

Item 16.  Exhibits

Exhibits:

<TABLE>
<CAPTION>

Exhibit
Number                    Description               Method of Filing
- -------                   -----------               ----------------
<S>                       <C>                       <C>

 1                  Underwriting Agreement                  **
 3(a)               Certificate of Incorporation            *
 3(b)               By-laws                                 *
 4(a)               Combination Fixed/Variable Group
                      Annuity Contract                      **
 4(b)               Certificate to be used in connection
                      with Contract filed as
                      Exhibit 4(a)                          **
 5                  Opinion re: Legality                    **
23                  Consents of Experts and Counsel
                    (a) Independent Auditors' Consent       Filed Herewith
                    (b) Consent of Counsel                  Filed Herewith
24                  Powers of Attorney                      ***

<FN>

*         Filed with the Registration Statement of the Registrant on
          Form S-1, File No. 33-29851.

**        Filed with Pre-effective Amendment No. 1 to the Registration
          Statement of the Registrant on Form S-2, File No. 33-29851.

***       Filed with Post-effective Amendment No. 3 to the Registration
          Statement of the Registrant on Form S-2, File No. 33-41858.

</TABLE>

Item 17.  Undertakings

               (a)  The undersigned Registrant hereby undertakes:

                    (1)  To file, during any period in which offers or sales
               are being made, a post-effective amendment to this registration
               statement:

                         (i)  To include any prospectus required by Section
                    10(a)(3) of the Securities Act of 1933;

                         (ii) To reflect in the prospectus any facts or events
                    arising after the effective date of the registration
                    statement (or the most recent post-effective amendment
                    thereof) which, individually or in the aggregate,
                    represent a fundamental change in the information set
                    forth in the registration statement;

                         (iii) To include any material information with
                    respect to the plan of distribution not previously
                    disclosed in the registration statement or any material
                    change to such information in the registration statement;

                                     II-3

<PAGE>

                         Provided, however, that paragraphs (a)(1)(i) and
                    a(1)(ii) do not apply if the registration statement is on
                    Form S-3 or Form S-8, and the information required to be
                    included in a post-effective amendment by those paragraphs
                    is contained in periodic reports filed by the registrant
                    pursuant to Section 13 or Section 15(d) of the Securities
                    Exchange Act of 1934 that are incorporated by reference in
                    the registration statement.

                    (2)  That, for the purpose of determining any liability
          under the Securities Act of 1933, each such post-effective amendment
          shall be deemed to be a new registration statement relating to the 
          securities offered therein, and the offering of such securities at
          that time shall be deemed to be the initial bona fide offering
          thereof.

                    (3)  To remove from registration by means of a post-
          effective amendment any of the securities being registered which
          remain unsold at the termination of the offering.

          The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
Securities Exchange Act of 1934 (and where applicable, each filing of an
employee benefit plan's annual report pursuant to  Section 15(d) of the
Securities Exchange Act of 1934) that is incorporated by reference in the
registration statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such
securities at that time shall be deemed to be the initial bona fide offering
thereof.

          Insofar as indemnification for liabilities arising under the
Securities Act of 1933 may be permitted to directors, officers and controlling
persons of the registrant pursuant to the foregoing provisions, or otherwise,
the registrant has been advised that in the opinion of the Securities and
Exchange Commission such indem-nification 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
the registrant of expenses incurred or paid by a director, officer or
controlling person of the registrant 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, the  registrant
will, unless in the opinion of its counsel the matter has been settled by
controlling precedent, submit to a court of appropriate jurisdiction the
question whether such indemnification by it is against public policy as
expressed in the Act and will be governed by the final adjudication of
such issue.

                                     II-4


<PAGE>

                                  SIGNATURES
   
          Pursuant to the requirements of the Securities Act of 1933, the
Registrant, Sun Life Assurance Company of Canada (U.S.), certifies that it has
reasonable grounds to believe that it meets all of the requirements for filing
on Form S-2 and has duly caused this Post-effective Amendment No. 5 to its
Registration Statement on Form S-2 to be signed on its behalf by the
undersigned, thereunto duly authorized, in the Town of Wellesley, Commonwealth
of Massachusetts, on the 30th day of April, 1996.
    
                                        Sun Life Assurance Company of
                                        Canada (U.S.)

                                            (Registrant)


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

Attest:   /s/ BONNIE S. ANGUS
         --------------------
              Bonnie S. Angus
              Secretary
   
          Pursuant to the requirements of the Securities Act of 1933, this
Post-effective Amendment No. 5 to the Registration Statement has been signed
by the following persons in the capacities and on the dates indicated.
    
   
<TABLE>
<CAPTION>

    Signature                       Title                     Date
    ---------                       -----                     -----
    <S>                             <C>                       <C>

                                 Chairman and
                                   Director
                                  (Principal
* /s/ JOHN D. McNEIL            Executive Officer)         April 30, 1996
- ----------------------------
      John D. McNeil

                               Vice President and Actuary
                                 (Principal Financial &
  /s/ ROBERT P. VROLYK              Accounting Officer)    April 30, 1996
- -----------------------------
      Robert P. Vrolyk

* /s/ RICHARD B. BAILEY                 Director           April 30, 1996
- -----------------------------
      Richard B. Bailey

</TABLE>
    
- -----------------------

*   By Bonnie S. Angus pursuant to Power of Attorney filed with Post-effective
    Amendment No. 3 to the Registration Statement of the Registrant on 
    Form S-2, File No. 33-41858.

                                     II-5


<PAGE>
   
<TABLE>
<CAPTION>

    Signature                       Title                     Date
    ---------                       -----                     ----
    <S>                             <C>                       <C>


* /s/ A. KEITH BRODKIN             Director                April 30, 1996
- -----------------------------
      A. Keith Brodkin


* /s/ M. COLYER CRUM               Director                April 30, 1996
- -----------------------------
      M. Colyer Crum

* /s/ JOHN R. GARDNER            President and             April 30, 1996
- -----------------------------      Director
      John R. Gardner

                               Senior Vice President
* /s/ DAVID D. HORN             and General Manager        April 30, 1996
- -----------------------------      and Director
      David D. Horn

* /s/ JOHN S. LANE                 Director                April 30, 1996
- -----------------------------
      John S. Lane

* /s/ ANGUS A. MacNAUGHTON         Director                April 30, 1996
- -----------------------------
      Angus A. MacNaughton

</TABLE>
    
- ------------------------

*   By Bonnie S. Angus pursuant to Power of Attorney filed with Post-effective
    Amendment No. 3 to the Registration Statement of the Registrant on
    Form S-2, File No. 33-41858.


                                     II-6


<PAGE>

                               EXHIBIT INDEX


<TABLE>
<CAPTION>

Exhibit                                                            Page
Number
- -------                                                            ----
<S>                                                                <C>


 1             Underwriting Agreement....................          **
 3(a)          Certificate of Incorporation..............          *
 3(b)          By-Laws...................................          *
 4(a)          Combination Fixed/Variable Group Annuity
                 Contract................................          **
 4(b)          Certificate to be issued in connection with
                 Contract Filed as Exhibit 4(a)..........          **
 5             Opinion Re: Legality......................          **
23(a)          Independent Auditors' Consent.............            
23(b)          Consent of Counsel........................            
24             Powers of Attorney........................          ***





<FN>

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

*   Filed with the Registration Statement of the Registrant on Form S-1,
    File No. 33-29851.

**  Filed with Pre-effective Amendment No. 1 to the Registration Statement
    of the Registrant on Form S-2, File No. 33-29851.

*** Filed with Post-effective Amendment No. 3 to the Registration
    Statement of the Registrant on Form S-2, File No. 33-41858.

</TABLE>


                                     II-7



<PAGE>
                                                                Exhibit 23(a)

            CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS

   
    We consent to the use in Post-Effective Amendment No. 5 to the Registration
Statement No. 33-41858 on Form S-2 of Sun Life Assurance Company of Canada
(U.S.) 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
December 31, 1995.
    

We also consent to the references to us under the headings "Condensed Financial
Information - Accumulation Unit Values" and "Accountants" in such Prospectus.



DELOITTE & TOUCHE LLP
   
Boston, Massachusetts
April 29, 1996
    

<PAGE>
                                                                Exhibit 23(b)

                               CONSENT OF COUNSEL
   
     I hereby consent to the reference to me in Post-effective Amendment No. 
5 to the Registration Statement on Form S-2 of Sun Life Assurance Company of 
Canada (U.S.) under the caption "Legal Matters" in the Prospectus contained 
therein.
    
                                              DAVID D. HORN, ESQ.
   
April 30, 1996

    










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