NORTHBROOK VARIABLE ANNUITY ACCOUNT
485BPOS, 1997-04-15
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         AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON APRIL 15, 1997
                                                               FILE NO.: 2-82511
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
    
                       SECURITIES AND EXCHANGE COMMISSION
 
                             WASHINGTON, D.C. 20549
                            ------------------------
 
                                    FORM N-4
 
            REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
   
                        POST-EFFECTIVE AMENDMENT NO. 22                      /X/
    
                                     AND/OR
 
        REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940
   
                                AMENDMENT NO. 19                             /X/
                            ------------------------
    
                      NORTHBROOK VARIABLE ANNUITY ACCOUNT
                           (EXACT NAME OF REGISTRANT)
 
                       NORTHBROOK LIFE INSURANCE COMPANY
                              (NAME OF DEPOSITOR)
 
                               MICHAEL J. VELOTTA
                 VICE PRESIDENT, SECRETARY AND GENERAL COUNSEL
                       NORTHBROOK LIFE INSURANCE COMPANY
                               3100 SANDERS ROAD
                           NORTHBROOK, ILLINOIS 60062
                                 (847) 402-2400
                (NAME AND COMPLETE ADDRESS OF AGENT FOR SERVICE)
 
                                   COPIES TO:
 
     GREGOR B. MCCURDY, ESQUIRE            CHRISTINE A. EDWARDS, ESQUIRE
      ROUTIER AND JOHNSON, P.C.              DEAN WITTER REYNOLDS INC.
   1700 K STREET, N.W., SUITE 1003            TWO WORLD TRADE CENTER
       WASHINGTON, D.C. 20006                NEW YORK, NEW YORK 10048
 
                            ------------------------
 
                        STATEMENT PURSUANT TO RULE 24F-2
   
Pursuant  to Rule 24f-2 under the Investment Company Act of 1940, the Registrant
hereby states that, pursuant to paragraph (b)(1), it filed its Rule 24f-2 Notice
for the fiscal year ending December 31, 1996 on February 28, 1997.
    
                            ------------------------
   
 IT IS PROPOSED THAT THIS FILING WILL BECOME EFFECTIVE (CHECK APPROPRIATE BOX)
        ___ immediately upon filing pursuant to paragraph (b) of Rule 485
        _X_ on May 1, 1997 pursuant to paragraph (b) of Rule 485
        ___ 60 days after filing pursuant to paragraph (a)(i) of Rule 485
        ___ on (date) pursuant to paragraph (a)(i) of Rule 485
    
            IF APPROPRIATE, CHECK THE FOLLOWING BOX:
        ___ This post-effective amendment designates a new effective date for a
            previously filed post-effective amendment.

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<PAGE>
                             CROSS REFERENCE SHEET
 
Showing  Location in Part A (Prospectus) and Part B of Registration Statement of
Information Required by Form N-4
   
<TABLE>
<CAPTION>
      ITEM OF
      FORM N-4                                                                                 PROSPECTUS CAPTION
- --------------------                                                             ----------------------------------------------
<S>        <C>        <C>        <C>                                             <C>
 1.        Cover Page..........................................................  Cover Page
 2.        Definitions.........................................................  Glossary
 3.        Synopsis............................................................  Introduction: Summary of Separate Account
                                                                                  Expenses
 4.        Condensed Financials................................................  --
           (a)        Chart....................................................  Condensed Financial Statements
           (b)        Performance Data.........................................  Performance Data
           (c)        Location of Others.......................................  Financial Statements
 5.        General.............................................................  --
           (a)        Depositor................................................  Northbrook Life Insurance Company
           (b)        Registrant...............................................  The Variable Account
           (c)        Portfolio Company........................................  Dean Witter Variable Investment Series
           (d)        Fund Prospectus..........................................  Dean Witter Variable Investment Series
           (e)        Voting Rights............................................  Voting Rights
           (f)        Administrators...........................................  Charges & Other Deductions -- Contract
                                                                                  Maintenance Charge
 6.        Deductions & Expenses...............................................  Charges & Other Deductions
           (a)        General..................................................  Charges & Other Deductions
           (b)        Sales Load %.............................................  Surrender Charge
           (c)        Special Purchase Plans...................................  N/A
           (d)        Commissions..............................................  Sales Commission
           (e)        Fund Expenses............................................  Summary of Expenses; Dean Witter Variable
                                                                                  Investment Series Expenses
           (f)        Organizational Expenses..................................  N/A
 7.        Contracts
           (a)        Persons with Rights......................................  The Contracts; Benefits; Income Payments;
                                                                                  Voting Rights; Assignments; Beneficiaries
                                                                                  Contract Owners
           (b)        (i)        Allocation of Purchase Payments...............  Allocation of Purchase Payments
                      (ii)       Transfers.....................................  Transfers
                      (iii)      Exchanges.....................................  N/A
           (c)        Changes..................................................  Modification
           (d)        Inquiries................................................  Customer Inquiries
 8.        Annuity Period......................................................  Income Payments
           (a)        Material Factors.........................................  Amount of Variable Annuity Income Payments
           (b)        Dates....................................................  Income Starting Date
           (c)        Frequency, duration & level..............................  Amount of Variable Annuity Income Payments
           (d)        AIR......................................................  Amount of Variable Annuity Income Payments
           (e)        Minimum..................................................  Amount of Variable Annuity Income Payments
           (f)        -- Change Options........................................  Income Plans
                      -- Transfer..............................................  ------
</TABLE>
    
<PAGE>
   
<TABLE>
<CAPTION>
      ITEM OF
      FORM N-4                                                                                 PROSPECTUS CAPTION
- --------------------                                                             ----------------------------------------------
<S>        <C>        <C>        <C>                                             <C>
 9.        Death Benefit.......................................................  Benefits Under the Contract
10.        Purchases & Contract Value
           (a)        Purchases................................................  Purchase of the Contract; Crediting of
                                                                                  Purchase Payments
           (b)        Valuation................................................  Value of Variable Account Accumulation Units
           (c)        Daily Calculation........................................  Value of Variable Account Accumulation Units;
                                                                                  Allocation of Purchase Payments
           (d)        Underwriter..............................................  Dean Witter Reynolds Inc.
11.        Redemptions
           (a)        -- By Owners.............................................  Surrender & Withdrawals
           (b)        -- By Annuitant..........................................  Annuity Options
           (c)        Texas ORP................................................  N/A
           (d)        Lapse....................................................  Default
           (e)        Free Look................................................  Introduction
12.        Taxes...............................................................  Federal Tax Matters
13.        Legal Proceedings...................................................  N/A
14.        SAI Contents........................................................  SAI Table of Contents
15.        Cover Page..........................................................  SAI: Cover Page
16.        Table of Contents...................................................  SAI: Table of Contents
17.        General Information & History
           (a)        Depositor's Name.........................................  Northbrook Life Insurance Company
           (b)        Assets of Sub-Account....................................  The Variable Account
           (c)        Control of Depositor.....................................  Northbrook Life Insurance Company
18.        Services
           (a)        Fees & Expenses of Registrant............................  Contract Maintenance Charge
           (b)        Management Contracts.....................................  Contract Maintenance Charge; Sales Commissions
           (c)        Custodian                                                  SAI: Safekeeping of the Variable Account's
                                                                                  Assets
                      Independent Public Accountant............................  SAI: Experts
           (d)        Assets of Registrant.....................................  SAI: Safekeeping of the Variable Account
                                                                                  Assets
           (e)        Affiliated Persons.......................................  N/A
           (f)        Principal Underwriter....................................  Dean Witter Reynolds Inc.
19.        Purchase of Securities Being Offered
           (a)        Offering.................................................  SAI: Purchase of Contracts
           (b)        Sales load...............................................  SAI: Sales Commissions
20.        Underwriters
           (a)        Principal Underwriter....................................  N/A
           (b)        Continuous offering......................................  SAI: Purchase of Contracts
           (c)        Commissions..............................................  SAI: Sales Commissions; Dean Witter Reynolds
                                                                                  Inc.
           (d)        Unaffiliated Underwriters................................  N/A
21.        Calculation of Performance Data.....................................  SAI: Performance Data
22.        Annuity Payments....................................................  SAI; Income Payments
</TABLE>
    
<PAGE>
<TABLE>
<CAPTION>
      ITEM OF
      FORM N-4                                                                                 PROSPECTUS CAPTION
- --------------------                                                             ----------------------------------------------
<S>        <C>        <C>        <C>                                             <C>
23.        Financial Statements
           (a)        Financial Statements of Registrant.......................  SAI; Northbrook Variable Annuity Account
                                                                                  Financial Statements
           (b)        Financial Statements of Depositor........................  SAI; Northbrook Life Insurance Company
                                                                                  Financial Statements
24a.       Financial Statements................................................  Part C.  Financial Statements
24b.       Exhibits............................................................  Part C.  Exhibits
25.        Directors and Officers..............................................  Part C.  Directors & Officers of Depositor
26.        Persons Controlled By or Under Common Control
           with Depositor or Registrant........................................  Part C.  Persons Controlled by or Under Common
                                                                                  Control with Depositor or Registrant
27.        Number of Contract Owners...........................................  Part C.  Number of Contract Owners
28.        Indemnification.....................................................  Part C.  Indemnification
29a.       Relationship of Principal Underwriter to Other
           Investment Companies................................................  Part C.  Relationship of Principal Underwriter
                                                                                  to Other Investment Companies
29b.       Principal Underwriters..............................................  Part C.  Principal Underwriters
29c.       Compensation of Underwriter.........................................  Part C.  Compensation of Dean Witter
30.        Location of Accounts and Records....................................  Part C.  Location of Accounts and Records
31.        Management Services.................................................  Part C.  Management Services
32.        Undertakings........................................................  Part C.  Undertakings
</TABLE>
<PAGE>
                      NORTHBROOK VARIABLE ANNUITY ACCOUNT
 
                                       OF
 
                       NORTHBROOK LIFE INSURANCE COMPANY
                                 P.O. BOX 94040
                         PALATINE, ILLINOIS 60094-4040
 
                     INDIVIDUAL VARIABLE ANNUITY CONTRACTS
 
                                 DISTRIBUTED BY
 
                           DEAN WITTER REYNOLDS INC.
                             TWO WORLD TRADE CENTER
                            NEW YORK, NEW YORK 10048
 
                              -------------------
 
This  Prospectus  describes  the  Flexible  Premium  Deferred  Variable  Annuity
Contract ("Contract") offered by Northbrook Life Insurance
Company ("Company"),  a  wholly  owned subsidiary  of  Allstate  Life  Insurance
Company.  Dean Witter Reynolds Inc. ("Dean Witter") is the principal underwriter
and distributor of the Contracts.
 
The Contract has the flexibility  to allow you to shape  an annuity to fit  your
particular  needs. It  is primarily designed  to aid you  in long-term financial
planning and can be used for retirement planning regardless of whether the  plan
qualifies for special federal income tax treatment.
 
This  Prospectus is  a concise statement  of the relevant  information about the
Northbrook Variable Annuity Account ("Variable  Account") which you should  know
before  making a  decision to purchase  the Contract.  This Prospectus generally
describes only the variable portion of the Contract. For a brief summary of  the
fixed portion of the Contract, see "The Fixed Account" on page 17.
 
The  Variable Account invests exclusively in  shares of the Dean Witter Variable
Investment  Series  (the  "Fund"),  a   mutual  fund  managed  by  Dean   Witter
InterCapital Inc., a wholly owned subsidiary of Dean Witter, Discover & Co.
 
   
The  Company has prepared and filed  a Statement of Additional Information dated
May 1, 1997 with  the U.S. Securities  and Exchange Commission.  If you wish  to
receive  the Statement of Additional Information, you  may obtain a free copy by
calling or writing the  Company at the address  below. For your convenience,  an
order  form for the Statement of Additional  Information may be found on page 23
of this  Prospectus.  Before ordering,  you  may wish  to  review the  Table  of
Contents  of  the  Statement  of  Additional  Information  on  page  22  of this
Prospectus. The Statement  of Additional  Information has  been incorporated  by
reference into this Prospectus.
    
 
                       NORTHBROOK LIFE INSURANCE COMPANY
                                 P.O. BOX 94040
                         PALATINE, ILLINOIS 60094-4040
                                 (800) 654-2397
 
                 THIS PROSPECTUS IS VALID ONLY WHEN ACCOMPANIED
                  OR PRECEDED BY A CURRENT PROSPECTUS FOR THE
                     DEAN WITTER VARIABLE INVESTMENT SERIES
 
  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.
 
    PLEASE READ THIS PROSPECTUS CAREFULLY AND RETAIN IT FOR FUTURE REFERENCE
 
   
                  THE DATE OF THIS PROSPECTUS IS MAY 1, 1997.
    
<PAGE>
THE CONTRACTS ARE AVAILABLE IN ALL STATES (EXCEPT NEW YORK), PUERTO RICO AND THE
                             DISTRICT OF COLUMBIA.
 
THIS  PROSPECTUS DOES  NOT CONSTITUTE AN  OFFERING IN ANY  JURISDICTION IN WHICH
SUCH OFFERING MAY NOT LAWFULLY BE MADE. NO DEALER, SALESMAN, OR OTHER PERSON  IS
AUTHORIZED  TO GIVE  ANY INFORMATION OR  MAKE ANY  REPRESENTATIONS IN CONNECTION
WITH THIS OFFERING OTHER THAN THOSE CONTAINED IN THIS PROSPECTUS, AND, IF  GIVEN
OR MADE, SUCH OTHER INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED UPON.
 
                               TABLE OF CONTENTS
 
   
Glossary....................................................      3
Introduction................................................      5
Summary of Separate Account Expenses........................      7
Condensed Financial Information.............................      9
Performance Data............................................     10
Financial Statements........................................     10
Northbrook Life Insurance Company and the Variable
 Account....................................................     10
  Northbrook Life Insurance Company.........................     10
  Dean Witter Reynolds Inc..................................     10
  The Variable Account......................................     11
  The Dean Witter Variable Investment Series................     11
The Contracts...............................................     12
  Purchase of the Contracts.................................     12
  Crediting of Purchase Payments............................     12
  Allocation of Purchase Payments...........................     13
  Value of Variable Account Accumulation Units..............     13
  Transfers.................................................     13
  Surrender and Withdrawals.................................     14
  Default...................................................     14
Charges and Other Deductions................................     14
  Deductions from Purchase Payments.........................     14
  Contract Maintenance Charge...............................     14
  Mortality and Expense Risk Charge.........................     15
  Surrender Charge..........................................     15
  Taxes.....................................................     15
  Dean Witter Variable Investment Series Expenses...........     15
Benefits Under the Contract.................................     16
  Death Benefits Prior to the Income Starting Date..........     16
  Death Benefits After the Income Starting Date.............     16
Income Payments.............................................     16
  Income Starting Date......................................     16
  Amount of Variable Annuity Income Payments................     16
  Annuity Options...........................................     17
The Fixed Account...........................................     17
  General Description.......................................     17
  Transfers, Surrenders, and Withdrawals....................     18
General Matters.............................................     18
  Owner.....................................................     18
  Beneficiary...............................................     18
  Delay of Payments.........................................     19
  Assignments...............................................     19
  Modification..............................................     19
  Customer Inquiries........................................     19
Federal Tax Matters.........................................     19
  Introduction..............................................     19
  Taxation of Annuities in General..........................     19
    Tax Deferral............................................     19
    Non-Natural Owners......................................     19
    Diversification Requirements............................     19
    Ownership Treatment.....................................     20
    Delayed Maturity Date...................................     20
    Taxation of Partial and Full Withdrawals................     20
    Taxation of Annuity Payments............................     20
    Taxation of Annuity Death Benefits......................     20
    Penalty Tax on Premature Distributions..................     20
    Aggregation of Annuity Contracts........................     20
  Tax Qualified Contracts...................................     20
    Restrictions Under Section 403(b) Plans.................     21
  Income Tax Withholding....................................     21
Voting Rights...............................................     21
Sales Commission............................................     21
Statement of Additional Information: Table of Contents......     22
Order Form..................................................     23
 
    
 
                                       2
<PAGE>
GLOSSARY
- -----------------------------------------------------------
 
    ACCUMULATION  UNIT--An accounting unit used  to calculate the Contract Value
in the Variable Account prior to  the Income Starting Date. Each Sub-Account  of
the Variable Account has its own distinct Accumulation Unit value.
 
    AGE--Age on last birthday.
 
    ANNUITANT--A  person whose life determines  the duration of annuity payments
involving life  contingencies. "Annuitant"  may include  a Joint  Annuitant,  if
named prior to January 19, 1985.
 
    ANNUITANT'S  BENEFICIARY--The person(s) designated in  the Contract who will
receive the Death Benefit  when the Annuitant  is not an Owner,  the Owner is  a
natural  person, and the  Annuitant dies prior  to the Income  Starting Date. An
irrevocable Annuitant's Beneficiary is an Annuitant's Beneficiary whose  written
consent  is required before you may change the Annuitant's Beneficiary, make the
Annuitant an Owner, or make an assignment.*
 
    ANNUITY  UNIT--An  accounting  unit  used  to  calculate  Variable   Annuity
payments. Each Sub-Account has a distinct Annuity Unit value.
 
    AUTOMATIC  ADDITIONS--Additional Purchase Payments of  $25 or more which are
made  automatically  from  the  Owner's  bank  account  or  Dean  Witter  Active
Assets-TM- Account.
 
    AUTOMATIC   INCOME--Partial  withdrawals  of  $100  or  more  may  be  taken
automatically from the Contract Value and sent to the Owner or deposited in  the
Owner's  bank account or Dean Witter  Active Assets-TM- Account or sent directly
to the Owner.
 
    BENEFICIARY--The person to whom  benefits will be paid  upon the earlier  of
the  Owner's or Annuitant's death, including  any contingent beneficiary. In the
event a Beneficiary is not named, the  Company will treat the Contract Owner  or
the  estate of the Contract Owner as the Beneficiary. Under the revised Contract
(see footnote below), the Beneficiary may  be either the Owner's Beneficiary  or
the Annuitant's Beneficiary.*
 
    COMPANY--The  issuer  of the  Contract,  Northbrook Life  Insurance Company,
which is a wholly owned subsidiary of Allstate Life Insurance Company.
 
    CONTINGENT ANNUITANT--The  person  who will  become  the Annuitant,  if  the
Annuitant  and Joint Annuitant, if applicable,  die prior to the Income Starting
Date. A Contingent Annuitant must be named  prior to the death of the  Annuitant
or the Income Starting Date, whichever occurs first.*
 
    CONTINGENT  OWNER--The person who will become Owner of the Contract upon the
death(s) of the Owner  and any Joint  Owner, so long as  the Annuitant or  Joint
Annuitant, if applicable, is still living.*
 
    CONTRACT--The  Flexible Premium Deferred Variable  Annuity Contract known as
the "Dean Witter  Variable Annuity," that  is described in  this prospectus  (in
Oregon,  Pennsylvania  and  Texas,  the Contract  is  known  as  the "Northbrook
Variable Annuity").
 
    CONTRACT ANNIVERSARY--An  anniversary  of the  date  that the  Contract  was
issued to the Contract Owner.*
 
    CONTRACT  VALUE--The  sum of  the value  of all  Accumulation Units  for the
Variable Account plus the value in the Fixed Account.
 
    CONTRACT YEAR--The year commencing  on either the Issue  Date or a  Contract
Anniversary.
 
    DATE  OF DEATH--The Date that an Owner and/or Annuitant dies causing a Death
Benefit to be due.*
 
    DEATH BENEFIT--The amount  payable to the  Beneficiary on the  death of  the
Annuitant  (and Joint Annuitant, if named prior  to January 19, 1985) so long as
no Contingent Annuitant is living, and so long as the death occurs on or  before
the date the IRS Required Distribution must be made or the Income Starting Date,
whichever is earlier.
 
    DOLLAR  COST AVERAGING--A  method to transfer  $100 or more  of the Contract
Value in the Money Market Sub-Account automatically to the other Sub-Accounts on
a monthly basis.
 
    DUE PROOF OF DEATH--One of the following
 
        (a) A copy of a certified death certificate.
 
        (b) A copy of a certified decree of a court of competent jurisdiction as
          to the finding of death.
 
        (c) Any other proof satisfactory to the Company.
 
    FIXED ACCOUNT--All of  the assets of  the Company that  are not in  separate
accounts.
 
                                       3
<PAGE>
    FIXED ANNUITY--An annuity with payments having a guaranteed amount.
 
    FREE  WITHDRAWAL  AMOUNT--A  portion  of the  Contract  Value  which  may be
withdrawn without  incurring  a Surrender  Charge,  i.e., 10%  of  all  Purchase
Payments made at least one year before the date of withdrawal.
 
    FUND--The Dean Witter Variable Investment Series.
 
    INCOME  PAYMENTS--A series of periodic annuity  payments made by the Company
to the Contract Owner or Beneficiary.
 
    INCOME STARTING  DATE--The  date Income  Payments  are to  begin  under  the
Contract.
 
    INVESTMENT  ALTERNATIVE--The Fixed Account and  the thirteen Sub-Accounts of
the Variable Account constitute the fourteen Investment Alternatives.
 
    JOINT ANNUITANT--The person, along with the Annuitant, whose life determines
the duration of annuity payments under a  joint and last survivor annuity. If  a
Joint  Annuitant was named before  January 19, 1985, the  Joint Annuitant is the
person who will become the Annuitant if  the Annuitant dies prior to the  Income
Starting Date.
 
    NET  INVESTMENT  FACTOR--The factor  for  a particular  Sub-Account  used to
determine the value of  an Accumulation Unit and  Annuity Unit in any  Valuation
Period.
 
    NON-QUALIFIED  CONTRACTS--Contracts that do not  qualify for special federal
income tax treatment.
 
    OWNER--The person designated as the owner in the Contract or as subsequently
changed. If  a  Contract is  jointly  owned,  rights and  privileges  under  the
Contract  must  be exercised  jointly  by each  Owner.  If a  Contract  has been
absolutely assigned, the assignee is the Owner. A collateral assignee is not  an
Owner.
 
    OWNER'S BENEFICIARY--The person(s) designated in the Contract who, after the
death  of all  Owners, may elect  to receive  the Death Benefit  or continue the
Contract  as  described  in  "Benefits  Under  the  Contract"  on  page  16.  An
irrevocable  Owner's  Beneficiary is  an  Owner's Beneficiary  whose  consent is
required before you may change the Owner's Beneficiary, add an Owner, or make an
assignment.*
 
    PORTFOLIOS--The  mutual  fund  portfolios   of  The  Dean  Witter   Variable
Investment  Series  (formerly  named  Dean  Witter  Variable  Annuity Investment
Series). The  Dean  Witter  Variable Investment  Series  has  thirteen  separate
Portfolios:  the Money Market Portfolio, the  Quality Income Plus Portfolio, the
High Yield Portfolio, the Utilities Portfolio, the Income Builder Portfolio, the
Dividend Growth Portfolio,  the Capital  Growth Portfolio,  the Global  Dividend
Growth  Portfolio, the European Growth  Portfolio, the Pacific Growth Portfolio,
the Capital  Appreciation Portfolio,  the Equity  Portfolio and  the  Strategist
Portfolio.
 
    PURCHASE PAYMENTS--The premiums paid by the Owner to the Company.
 
    QUALIFIED  CONTRACTS--Contracts issued under plans  that qualify for special
federal income tax treatment.
 
    REQUIRED MINIMUM DISTRIBUTION--For Qualified Contracts, withdrawals equal to
the IRS Required Minimum Distribution may be taken from the Cash Value and  sent
to  the Owner  or deposited in  the Owner's  bank account or  Dean Witter Active
Assets-TM- Account.
 
    SUB-ACCOUNT--A  sub-division  of  the  Variable  Account.  Each  Sub-Account
invests exclusively in shares of a specified Portfolio.
 
    SURRENDER  CHARGE--The charge that may be assessed by the Company on full or
partial withdrawals  of the  Contract Value  in excess  of the  Free  Withdrawal
Amount.
 
    VALUATION  DATE--Each  day that  the  New York  Stock  Exchange is  open for
business, and any other day  in which there is  sufficient degree of trading  in
the  Variable Account's portfolio  securities that the  value of Accumulation or
Annuity Units  might be  materially affected  by  changes in  the value  of  the
portfolio securities. The Valuation Date does not include such other Federal and
non-Federal holidays as are observed by the New York Stock Exchange.
 
    VALUATION  PERIOD--The period between successive Valuation Dates, commencing
at the close  of business  of each  Valuation Date and  ending at  the close  of
business of the next succeeding Valuation Date.
 
    VARIABLE ACCOUNT--Northbrook Variable Annuity Account, a separate investment
account  established by the Company to  receive and invest the Purchase Payments
paid under the Contracts.
 
    VARIABLE ANNUITY--An annuity  with payments  that have  no predetermined  or
guaranteed  dollar amounts. The payments will vary in amounts depending upon the
investment experience of one or more of the Portfolios.
 
*The Company revised the Contract on March 1, 1990. These designations have been
modified in the revised Contract for clarification.
 
                                       4
<PAGE>
INTRODUCTION
- -----------------------------------------------------------
 
1.  WHAT IS THE PURPOSE OF THE CONTRACT?
 
    The Contract seeks to  allow you to accumulate  funds and to receive  Income
Payments  which  reflect  changes  in  the  cost  of  living  before  and  after
retirement. THERE IS NO ASSURANCE THAT THIS GOAL WILL BE ACHIEVED. In attempting
to achieve this goal, the Owner can allocate Purchase Payments to one or more of
the Variable Account Portfolios.
 
Because Contract Values and Income Payments depend on the investment  experience
of  the  selected Portfolios,  the Owner  bears the  entire investment  risk for
amounts allocated  to  the Variable  Account.  See "Value  of  Variable  Account
Accumulation Units," pg. 13 and "Income Payments," pg. 16.
 
2.  WHAT TYPES OF INVESTMENTS UNDERLIE THE VARIABLE ACCOUNT?
 
   
    The  Variable  Account  invests exclusively  in  shares of  the  Dean Witter
Variable Investment Series (the  "Fund"), a mutual fund  managed by Dean  Witter
InterCapital  Inc., a wholly  owned subsidiary of Dean  Witter Reynolds Inc. The
Fund has thirteen  Portfolios: the  Money Market Portfolio,  the Quality  Income
Plus  Portfolio, the High  Yield Portfolio, the  Utilities Portfolio, the Income
Builder Portfolio, the Dividend Growth Portfolio, the Capital Growth  Portfolio,
the Global Dividend Growth Portfolio, the European Growth Portfolio, the Pacific
Growth  Portfolio, the Capital Appreciation  Portfolio, the Equity Portfolio and
the Strategist Portfolio. The assets of each Portfolio are held separately  from
the  other Portfolios and  each has distinct  investment objectives and policies
which are described in the accompanying Prospectus for the Fund.
    
 
3.  HOW DO I PURCHASE A CONTRACT?
 
    The Company  has  discontinued the  offering  of new  Contracts.  Additional
Purchase Payments to existing Contracts are accepted by the Company.
 
Automatic  Additions  allow you  to systematically  build toward  your long-term
financial plan on a  monthly basis by making  subsequent Purchase Payments  from
your  bank account  or your  Dean Witter  Active Assets-TM-  Account. Subsequent
Purchase Payments must be $25 or more and  may be made at any time prior to  the
Income Starting Date.
 
The Company may limit the total Purchase Payments in any year to three times the
Purchase  Payments made  during the  first Contract  Year. See  "Purchase of the
Contracts," pg. 12 and "Crediting of Purchase Payments," pg. 12.
 
4.  HOW DO I ALLOCATE PURCHASE PAYMENTS?
 
    On your  application, you  will  allocate your  Purchase Payment  among  the
Sub-Accounts  and the Fixed  Account. All allocations must  be in whole percents
from 0% to 100% and must total 100%. Allocations may be changed by notifying the
Company in writing. See "Allocation of Purchase Payments," pg. 13.
 
5.  CAN I TRANSFER AMOUNTS AMONG THE SUB-ACCOUNTS?
 
    Transfers can be made among the thirteen Sub-Accounts and the Fixed  Account
without  charge. Transfers  must be at  least $100  or the entire  amount in the
Investment Alternative whichever is less.
 
Dollar  Cost  Averaging  automatically  moves   funds  from  the  Money   Market
Sub-Account on a monthly basis to other Sub-Accounts of your choice.
 
Certain transfers may be restricted. See "Transfers," pg. 13.
 
6.  CAN I GET MY MONEY IF I NEED IT?
 
    All  or part of the  Contract Value can be  withdrawn before the earliest of
the Income  Starting Date,  the death  of any  Owner or  the death  of the  last
surviving Annuitant. Partial withdrawals may also be taken automatically through
monthly Automatic Income withdrawals. See "Surrender and Withdrawals," pg. 14.
 
No  Surrender Charges will be  deducted from the first  withdrawal in a Contract
Year on amounts up to the Free Withdrawal Amount. Amounts withdrawn in excess of
the Free Withdrawal  Amount may be  subject to a  Surrender Charge of  0% to  6%
depending  on how long the withdrawn Purchase Payments have been invested in the
Contract. THE COMPANY GUARANTEES THAT THE AGGREGATE SURRENDER CHARGES WILL NEVER
EXCEED 7% OF THE PURCHASE PAYMENTS.
 
                                       5
<PAGE>
For Non-Qualified  Contracts,  i.e. Contracts  not  qualifying for  special  tax
treatment, a penalty tax may be imposed on withdrawals. Federal and state income
tax  may be withheld from withdrawal  and surrender amounts. Qualified Contracts
may also have certain restrictions and penalties on withdrawals. See  "Surrender
and Withdrawals," pg. 14, and "Taxation of Annuities in General," pg. 19.
 
7.  WHAT ARE THE CHARGES AND DEDUCTIONS UNDER THE CONTRACT?
 
    To  allow you to  invest the entire Purchase  Payment, the Company currently
does not deduct sales charges at the time of investment. Annually, however,  the
Company   deducts  $30  for  maintaining  the  Contract  ("Contract  Maintenance
Charge"). THIS AMOUNT IS GUARANTEED  NOT TO INCREASE. See "Contract  Maintenance
Charge," pg. 14, for how and when this charge is deducted.
 
The  Company deducts  a daily  charge equal on  an annual  basis to  1.0% of the
Contract's daily net assets of the Variable Account and will reflect this charge
in the net interest rate credited to  amounts in the Fixed Account allocable  to
the  Contracts in order to pay the Death Benefit and expenses not covered by the
Contract Maintenance Charge. See "Mortality and Expense Risk Charge," pg. 15.
 
Additional deductions may be made  for certain taxes. Ordinarily, premium  taxes
will  be  deducted when  money is  withdrawn  from the  Contract or  when Income
Payments under an Annuity Option begin. The Company reserves the right to deduct
such taxes  from  Purchase  Payments  at  the  time  such  taxes  are  incurred.
Currently, no deductions are made for capital gains tax reserve.
 
8.  WHAT ANNUITY OPTIONS ARE AVAILABLE UNDER THE CONTRACT?
 
    The  Owner may  receive Income  Payments on  a completely  variable basis, a
completely fixed  basis, or  a variable  and  fixed basis.  The Owner  has  some
flexibility  in choosing when Income Payments  begin. Payments must begin by the
later of the month following the Annuitant's 85th birthday or the 10th  Contract
Anniversary. See "Income Payments," pg. 16 and "Income Starting Date," pg. 16.
 
Three  Annuity Options are listed in the  Contract: (1) payments for life of the
Annuitant, but  with  120  monthly  payments  guaranteed;  (2)  payments  for  a
specified  period; and  (3) payments  for the  life of  the Annuitant  and Joint
Annuitant. Other options may be available at the Company's discretion;  however,
Surrender  Charges may apply if Income Payments  are made for a specified period
of less than 120 months. See "Annuity Options," pg. 17.
 
Federal tax law may limit the availability of Annuity Options.
 
9.  DOES THE CONTRACT PAY ANY GUARANTEED DEATH BENEFITS?
 
    Death benefits  will be  paid to  the  Beneficiary if  the Owner(s)  or  the
Annuitant(s)  (and  no Contingent  Annuitant is  still  living), die  before the
Income Starting Date. The Death  Benefit will be the greater  of (1) the sum  of
all  Purchase Payment(s)  less any amounts  deducted in  connection with partial
withdrawals, including any Surrender Charges,  or (2) the Contract Value.  Death
benefits  after the  Income Starting  Date, if any,  will depend  on the Annuity
Option chosen.
 
   
The Beneficiary has  180 days  from the  date of death  of the  Owner(s) or  the
Annuitant(s)  to either elect an  Annuity Option or to  take a lump sum payment.
See "Benefits Under the Contract," pg. 16.
    
 
10.  IS THERE A FREE-LOOK PROVISION?
 
    Owners may cancel  a Contract anytime  within 10 days  after receipt of  the
Contract  and receive a full refund of  Purchase Payments allocated to the Fixed
Account. Unless a refund  of Purchase Payments is  required by State or  Federal
law,  Purchase Payments allocated to the Variable Account will be returned after
an adjustment to reflect investment gain or loss that occurred from the date  of
allocation through the date of cancellation.
 
11.  DOES THE CONTRACT OWNER HAVE ANY VOTING RIGHTS UNDER THE CONTRACT?
 
    The  Owner  can instruct  the Company  how  to vote  shares of  any eligible
Portfolio attributable to the Contract. See "Voting Rights," pg. 21.
 
                    *                   *                   *
 
This prospectus  describes only  the variable  aspects of  the Contract,  except
where  fixed aspects are specifically mentioned. See  pg. 17 for a brief summary
of the Fixed Account.
 
                                       6
<PAGE>
SUMMARY OF SEPARATE ACCOUNT EXPENSES
- -----------------------------------------------------------
 
   
The  following fee table illustrates all expenses  and fees that the Owners will
incur. The expenses and fees set forth  in the table are based on charges  under
the  Contracts and on  the expenses of  the separate account  and the underlying
Fund for the fiscal year ended December 31, 1996.
    
 
OWNER TRANSACTION EXPENSES (ALL SUB-ACCOUNTS)
 
<TABLE>
<S>                                                                                                   <C>
Sales Load Imposed on Purchases (as a percentage of Purchase Payments)..............................       None
Contingent Deferred Sales Charge (as a percentage of amount surrendered)*
</TABLE>
 
<TABLE>
<CAPTION>
                                                                                                                APPLICABLE SALES
                                                                                                                     CHARGE
ELAPSED TIME SINCE PURCHASE PAYMENT BEING WITHDRAWN WAS MADE                                                       PERCENTAGE
- --------------------------------------------------------------------------------------------------------------  ----------------
<S>                                                                                                             <C>
Less than 1 year..............................................................................................         6%
1 year, but less than 2 years.................................................................................         5%
2 years, but less than 3 years................................................................................         4%
3 years, but less than 4 years................................................................................         3%
4 years, but less than 5 years................................................................................         2%
5 years, but less than 6 years................................................................................         1%
6 years or more...............................................................................................         0%
</TABLE>
 
<TABLE>
<S>                                                                                                   <C>
Exchange Fee........................................................................................       None
Annual Contract Fee.................................................................................  $      30
</TABLE>
 
SEPARATE ACCOUNT ANNUAL EXPENSES (AS A PERCENTAGE OF AVERAGE ACCOUNT VALUE)
 
<TABLE>
<S>                                                                                               <C>
Mortality and Expense Risk Charges:.............................................................         1%
Total Separate Account Annual Expenses:.........................................................         1%
</TABLE>
 
- ------------------------
   
 *  There are no  Contingent Deferred Sales Charges  on the first withdrawal  of
each Contract Year on amounts up to the Free Withdrawal Amount.
    
 
DEAN WITTER VARIABLE INVESTMENT SERIES ("FUND") EXPENSES
(AS A PERCENTAGE OF FUND AVERAGE NET ASSETS)
 
   
<TABLE>
<CAPTION>
                                                                                 MANAGEMENT       OTHER         TOTAL FUND
PORTFOLIO                                                                           FEES         EXPENSES     ANNUAL EXPENSES
- ------------------------------------------------------------------------------  -------------  ------------  -----------------
<S>                                                                             <C>            <C>           <C>
Money Market..................................................................         .50%           .02%            .52%
Quality Income Plus...........................................................         .50%(1)        .03%            .53%
High Yield....................................................................         .50%           .01%            .51%
Utilities.....................................................................         .65%(2)        .02%            .67%
Income Builder................................................................         .75%(3)        .07%            .82%
Dividend Growth...............................................................         .56%(4)        .01%            .57%
Capital Growth................................................................         .65%           .08%            .73%
Global Dividend Growth........................................................         .75%           .10%            .85%
European Growth...............................................................        1.00%           .11%           1.11%
Pacific Growth................................................................        1.00%           .37%           1.37%
Capital Appreciation..........................................................         .75%(3)        .07%            .82%
Equity........................................................................         .50%(5)        .04%            .54%
Strategist....................................................................         .50%           .02%            .52%
</TABLE>
    
 
- ------------------------
   
(1)    This percentage  is  applicable to  Portfolio net  assets  of up  to $500
    million. For net assets which exceed  $500 million, the management fee  will
    be 0.45%.
    
(2)    This percentage  is  applicable to  Portfolio net  assets  of up  to $500
    million. For net assets which exceed  $500 million, the management fee  will
    be 0.55%.
   
(3)   Dean Witter  InterCapital Inc. has  undertaken to assume  all expenses for
    both the Income  Builder Portfolio  and the  Capital Appreciation  Portfolio
    until  such time as the pertinent Portfolio has $50 million of net assets or
    until  six  months  from  the  date  of  the  Portfolio's  commencement   of
    operations, whichever occurs first.
    
   
(4)  The management fee will be 0.625% for net assets of up to $500 million. For
    net  assets which  exceed $500  million, but do  not exceed  $1 billion, the
    management fee will be 0.50% and for net assets that exceed $1 billion,  the
    management fee will be 0.475%.
    
   
(5)   This percentage is applicable to Portfolio net assets of up to $1 billion.
    For net assets which exceed $1 billion, the management fee will be 0.475%.
    
 
                                       7
<PAGE>
EXAMPLE
 
You (the  Owner)  would pay  the  following  expenses on  a  $1,000  investment,
assuming a 5% annual return under the following circumstances:
 
If  you surrender your Contract at the end  of the applicable time period (or if
you annuitize for a specified period of less than 120 months):
 
   
<TABLE>
<CAPTION>
                                                                           1 YEAR       3 YEARS      5 YEARS     10 YEARS
                                                                            -----     -----------  -----------  -----------
<S>                                                                      <C>          <C>          <C>          <C>
Money Market Sub-Account...............................................   $      63    $      80    $      97    $     188
Quality Income Plus Sub-Account........................................   $      63    $      81    $      98    $     189
High Yield Sub-Account.................................................   $      63    $      80    $      97    $     187
Utilities Sub-Account..................................................   $      64    $      85    $     105    $     205
Income Builder Sub-Account.............................................   $      66    $      90    $     113    $     221
Dividend Growth Sub-Account............................................   $      63    $      82    $     100    $     194
Capital Growth Sub-Account.............................................   $      65    $      87    $     108    $     211
Global Dividend Growth Sub-Account.....................................   $      66    $      90    $     114    $     224
European Growth Sub-Account............................................   $      69    $      98    $     128    $     252
Pacific Growth Sub-Account.............................................   $      71    $     106    $     141    $     279
Capital Appreciation Sub-Account.......................................   $      66    $      90    $     113    $     221
Equity Sub-Account.....................................................   $      63    $      81    $      99    $     191
Strategist Sub-Account.................................................   $      63    $      81    $      98    $     189
</TABLE>
    
 
If you do  not surrender  your Contract  or if  you annuitize*  for a  specified
period of 120 months or more, at the end of the applicable time period:
 
   
<TABLE>
<CAPTION>
                                                                           1 YEAR       3 YEARS      5 YEARS     10 YEARS
                                                                            -----     -----------  -----------  -----------
<S>                                                                      <C>          <C>          <C>          <C>
Money Market Sub-Account...............................................   $      16    $      50    $      86    $     188
Quality Income Plus Sub-Account........................................   $      16    $      51    $      87    $     189
High Yield Sub-Account.................................................   $      16    $      50    $      86    $     187
Utilities Sub-Account..................................................   $      18    $      55    $      94    $     205
Income Builder Sub-Account.............................................   $      19    $      60    $     103    $     221
Dividend Growth Sub-Account............................................   $      17    $      52    $      89    $     194
Capital Growth Sub-Account.............................................   $      18    $      57    $      98    $     211
Global Dividend Growth Sub-Account.....................................   $      20    $      61    $     104    $     224
European Growth Sub-Account............................................   $      22    $      69    $     117    $     252
Pacific Growth Sub-Account.............................................   $      25    $      77    $     131    $     279
Capital Appreciation Sub-Account.......................................   $      19    $      60    $     103    $     221
Equity Sub-Account.....................................................   $      16    $      51    $      88    $     191
Strategist Sub-Account.................................................   $      16    $      50    $      87    $     189
</TABLE>
    
 
   
The  above example should not  be considered a representation  of past or future
expense or  performance. Actual  expenses of  a Sub-Account  may be  greater  or
lesser  than those shown. The purpose of this  summary is to assist the Owner in
understanding the various costs and expenses that Owners will bear directly  and
indirectly.  Premium  taxes  are  not  reflected  in  the  example  but  may  be
applicable.
    
- ------------------------
 * Early Withdrawal Charges  may be deducted  from the Cash  Value before it  is
   applied to an income plan with a specified period of less than 120 months.
 
                                       8
<PAGE>
CONDENSED FINANCIAL INFORMATION
- -----------------------------------------------------------
   
<TABLE>
<CAPTION>
                                                                 ACCUMULATION UNIT VALUES AND NUMBER
                                                                OF ACCUMULATION UNITS OUTSTANDING FOR
                                                                          EACH SUB-ACCOUNT*
                                                                  FOR THE PERIODS ENDING DECEMBER 31
                                            ------------------------------------------------------------------------------
                                               1986        1987        1988       1989       1990       1991       1992
                                            ----------  ----------  ----------  ---------  ---------  ---------  ---------
<S>                                         <C>         <C>         <C>         <C>        <C>        <C>        <C>
MONEY MARKET SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................     $11.430     $12.043     $12.669    $13.459    $14.532    $15.530    $16.260
  Accumulation Unit Value, End of
   Period.................................     $12.043     $12.669     $13.459    $14.532    $15.530    $16.260    $16.651
  Number of Units Outstanding, End of
   Period.................................   3,501,808   5,479,058   5,743,470  5,269,945  7,300,227  4,993,305  3,142,381
QUALITY INCOME PLUS SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................          --     $10.000     $10.172    $10.828    $12.097    $12.798    $15.016
  Accumulation Unit Value, End of
   Period.................................          --     $10.172     $10.828    $12.097    $12.798    $15.016    $16.096
  Number of Units Outstanding, End of
   Period.................................          --   2,366,834   2,589,488  4,028,103  4,292,424  4,272,603  4,167,157
HIGH YIELD SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................     $14.019     $16.407     $15.745    $17.324    $14.993    $10.864    $17.064
  Accumulation Unit Value, End of
   Period.................................     $16.407     $15.745     $17.324    $14.993    $10.864    $17.064    $20.008
  Number of Units Outstanding, End of
   Period.................................  12,472,735  12,161,618  11,091,971  6,425,388  2,487,589  1,973,508  1,677,444
UTILITIES SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................          --          --          --         --    $10.000    $10.365    $12.372
  Accumulation Unit Value, End of
   Period.................................          --          --          --         --    $10.365    $12.372    $13.797
  Number of Units Outstanding, End of
   Period.................................          --          --          --         --  3,364,215  3,655,014  3,883,303
INCOME BUILDER SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................          --          --          --         --         --         --         --
  Accumulation Unit Value, End of
   Period.................................          --          --          --         --         --         --         --
  Number of Units Outstanding, End of
   Period.................................          --          --          --         --         --         --         --
DIVIDEND GROWTH SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................          --          --          --         --    $10.000     $9.143    $11.564
  Accumulation Unit Value, End of
   Period.................................          --          --          --         --     $9.143    $11.564    $12.383
  Number of Units Outstanding, End of
   Period.................................          --          --          --         --  5,838,210  5,646,884  6,048,975
CAPITAL GROWTH SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................          --          --          --         --         --    $10.000    $12.735
  Accumulation Unit Value, End of
   Period.................................          --          --          --         --         --    $12.735    $12.814
  Number of Units Outstanding, End of
   Period.................................          --          --          --         --         --    468,488    681,326
GLOBAL DIVIDEND GROWTH SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................          --          --          --         --         --         --         --
  Accumulation Unit Value, End of
   Period.................................          --          --          --         --         --         --         --
  Number of Units Outstanding, End of
   Period.................................          --          --          --         --         --         --         --
EUROPEAN GROWTH SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................          --          --          --         --         --    $10.000    $10.050
  Accumulation Unit Value, End of
   Period.................................          --          --          --         --         --    $10.050    $10.347
  Number of Units Outstanding, End of
   Period.................................          --          --          --         --         --    101,037    251,802
PACIFIC GROWTH SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................          --          --          --         --         --         --         --
  Accumulation Unit Value, End of
   Period.................................          --          --          --         --         --         --         --
  Number of Units Outstanding, End of
   Period.................................          --          --          --         --         --         --         --
CAPITAL APPRECIATION SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................          --          --          --         --         --         --         --
  Accumulation Unit Value, End of
   Period.................................          --          --          --         --         --         --         --
  Number of Units Outstanding, End of
   Period.................................          --          --          --         --         --         --         --
EQUITY SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................     $13.511     $15.623     $14.510    $15.786    $18.580    $17.728    $27.916
  Accumulation Unit Value, End of
   Period.................................     $15.623     $14.510     $15.786    $18.580    $17.728    $27.916    $27.681
  Number of Units Outstanding, End of
   Period.................................   2,767,931   3,615,560   2,524,904  3,123,809  2,302,425  2,025,964  1,886,301
STRATEGIST SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................          --     $10.000     $10.036    $11.211    $12.284    $12.351    $15.684
  Accumulation Unit Value, End of
   Period.................................          --     $10.036     $11.211    $12.284    $12.351    $15.684    $16.651
  Number of Units Outstanding, End of
   Period.................................          --   2,689,906   5,526,856  7,164,494  5,424,907  4,805,519  4,762,207
 
<CAPTION>
 
                                              1993       1994        1995        1996
                                            ---------  ---------  ----------  ----------
<S>                                         <C>        <C>        <C>         <C>
MONEY MARKET SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................    $16.651    $16.940     $17.411     $18.215
  Accumulation Unit Value, End of
   Period.................................    $16.940    $17.411     $18.215     $18.955
  Number of Units Outstanding, End of
   Period.................................  2,402,295  2,408,602   1,486,360   1,225,023
QUALITY INCOME PLUS SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................    $16.096    $18.010     $16.648     $20.498
  Accumulation Unit Value, End of
   Period.................................    $18.010    $16.648     $20.498     $20.608
  Number of Units Outstanding, End of
   Period.................................  3,998,449  2,779,045   2,159,205   1,301,162
HIGH YIELD SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................    $20.008    $24.609     $23.759     $27.055
  Accumulation Unit Value, End of
   Period.................................    $24.609    $23.759     $27.055     $29.993
  Number of Units Outstanding, End of
   Period.................................  1,537,549  1,202,135     906,011     712,341
UTILITIES SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................    $13.797    $15.804     $14.235     $18.132
  Accumulation Unit Value, End of
   Period.................................    $15.804    $14.235     $18.132     $19.509
  Number of Units Outstanding, End of
   Period.................................  3,932,991  2,814,866   2,298,190   1,419,955
INCOME BUILDER SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................         --         --          --          --
  Accumulation Unit Value, End of
   Period.................................         --         --          --          --
  Number of Units Outstanding, End of
   Period.................................         --         --          --          --
DIVIDEND GROWTH SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................    $12.383    $14.019     $13,425     $18.128
  Accumulation Unit Value, End of
   Period.................................    $14.019    $13.425     $18.128     $22.248
  Number of Units Outstanding, End of
   Period.................................  5,878,916  5,229,279   4,402,940   3,144,203
CAPITAL GROWTH SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................    $12.814    $11.799     $11.533     $15.177
  Accumulation Unit Value, End of
   Period.................................    $11.799    $11.533     $15.177     $16.760
  Number of Units Outstanding, End of
   Period.................................    457,147    321,342     256,312     192,504
GLOBAL DIVIDEND GROWTH SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................         --    $10.000      $9.942     $12.012
  Accumulation Unit Value, End of
   Period.................................         --     $9.942     $12.012     $13.984
  Number of Units Outstanding, End of
   Period.................................         --    951,857     852,851     725,977
EUROPEAN GROWTH SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................    $10.347    $14.433     $15.484     $19.299
  Accumulation Unit Value, End of
   Period.................................    $14.433    $15.484     $19.299     $24.837
  Number of Units Outstanding, End of
   Period.................................    767,814    868.638     649,852     545,184
PACIFIC GROWTH SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................         --    $10.000      $9.248      $9.682
  Accumulation Unit Value, End of
   Period.................................         --     $9.248      $9.682      $9.957
  Number of Units Outstanding, End of
   Period.................................         --    644,451     608,464     523,417
CAPITAL APPRECIATION SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................         --         --          --          --
  Accumulation Unit Value, End of
   Period.................................         --         --          --          --
  Number of Units Outstanding, End of
   Period.................................         --         --          --          --
EQUITY SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................    $27.681    $32.807     $30.885     $43.585
  Accumulation Unit Value, End of
   Period.................................    $32.807    $30.885     $43.585     $48.483
  Number of Units Outstanding, End of
   Period.................................  1,800,750  1,652,850   1,314,532     968,987
STRATEGIST SUB-ACCOUNT
  Accumulation Unit Value, Beginning of
   Period.................................    $16.651    $18.199     $18.728     $20.284
  Accumulation Unit Value, End of
   Period.................................    $18.199    $18.728     $20.284     $23.098
  Number of Units Outstanding, End of
   Period.................................  4,409,391  3,994,684   2,708,051   1,937,096
</TABLE>
    
 
- ----------------------------------
   
 * The  Money Market, High Yield and Equity Sub-Accounts commenced operations on
   March 9, 1984. The Quality Income Plus and Strategist Sub-Accounts  commenced
   operations  on March 1, 1987. The  Utilities and Dividend Growth Sub-Accounts
   commenced operations on March 1, 1990. The Capital Growth and European Growth
   Sub-Accounts commenced  operations  on March  1,  1991. The  Global  Dividend
   Growth  and Pacific Growth Sub-Accounts  commenced operations on February 23,
   1994. The  Income Builder  and  Capital Appreciation  Sub-Accounts  commenced
   operations on January 21, 1997. The Accumulation Unit Value for each of these
   Sub-Accounts  was initially set  at $10.000. The  Accumulation Unit Values in
   this table reflect a Mortality and Expense Risk Charge of 1%.
    
 
                                       9
<PAGE>
PERFORMANCE DATA
- -----------------------------------------------------------
 
From time to  time the  Variable Account may  publish advertisements  containing
performance  data relating  to its  Sub-Accounts. The  performance data  for the
Sub-Accounts (other  than  for the  Money  Market Sub-Account)  will  always  be
accompanied by total return quotations for the most recent one, five or ten year
periods,  or for a period from inception to date if the Sub-Account has not been
available for one  of the prescribed  periods. The total  return quotations  for
each  period will be the average annual  rates of return required for an initial
Purchase Payment  of  $1,000 to  equal  the amount  Owners  would receive  on  a
withdrawal  of  the  Purchase Payment,  after  reflection of  all  recurring and
nonrecurring charges.
 
In addition, the Variable Account may advertise the total return over  different
periods  of time by means of aggregate,  average, year-by-year or other types of
total return figures. Such calculations may or may not reflect the deduction  of
some or all of the charges which may be imposed on the Contracts by the Variable
Account  which, if reflected, would reduce  the performance quoted. The Variable
Account from time to time may also advertise the performance of the Sub-Accounts
relative to certain  performance rankings  and indexes  compiled by  independent
organizations.
 
Performance  figures used by the Variable Account are based on actual historical
performance of its Sub-Accounts for specified  periods, and the figures are  not
intended  to  indicate  future  performance. More  detailed  information  on the
computation is set forth in the Statement of Additional Information.
 
FINANCIAL STATEMENTS
- -----------------------------------------------------------
 
The  financial  statements  of  the  Northbrook  Variable  Annuity  Account  and
Northbrook  Life Insurance Company  may be found in  the Statement of Additional
Information, which is
 
incorporated by  reference into  this  Prospectus and  which is  available  upon
request. (See Order Form on pg. 23.)
 
NORTHBROOK LIFE INSURANCE COMPANY AND
THE VARIABLE ACCOUNT
- -----------------------------------------------------------
 
NORTHBROOK LIFE INSURANCE COMPANY
 
The  Company is the issuer of the Contract. Incorporated in 1978 as a stock life
insurance company under the  laws of Illinois, the  Company sells annuities  and
individual  life insurance. The Company is  currently licensed to operate in the
District of  Columbia,  all  states  (except New  York)  and  Puerto  Rico.  The
Company's  home office  is located at  3100 Sanders  Road, Northbrook, Illinois,
60062.
 
   
The Company is  a wholly  owned subsidiary  of Allstate  Life Insurance  Company
("Allstate  Life"), which is  a stock life  insurance company incorporated under
the laws of  Illinois. Allstate Life  is a wholly  owned subsidiary of  Allstate
Insurance  Company ("Allstate"), which is a stock insurance company incorporated
under the laws of Illinois. With the exception of directors' qualifying  shares,
all  of  the outstanding  capital stock  of  Allstate is  owned by  The Allstate
Corporation ("Corporation"). On June 30, 1995, Sears, Roebuck and Co.  ("Sears")
distributed  its 80.3% ownership in the Corporation to Sears common shareholders
through a tax-free dividend.
    
 
DEAN WITTER REYNOLDS INC.
 
Dean Witter Reynolds Inc.  ("Dean Witter") is the  principal underwriter of  the
Contract.  Dean Witter is a  wholly owned subsidiary of  Dean Witter, Discover &
Co. ("Dean Witter Discover"). Dean Witter is located at Two World Trade  Center,
New  York,  New York,  10048. Dean  Witter is  a  member of  the New  York Stock
Exchange and the National Association of Securities Dealers, Inc.
 
Dean  Witter's   wholly  owned   subsidiary,  Dean   Witter  InterCapital   Inc.
("InterCapital"),  is  the  investment  manager  of  the  Dean  Witter  Variable
Investment Series. InterCapital is registered  with the Securities and  Exchange
Commission  as an investment adviser. As compensation for investment management,
the Fund
 
                                       10
<PAGE>
pays InterCapital  a  monthly  advisory  fee.  These  expenses  are  more  fully
described in the Fund's prospectus attached to this prospectus.
 
   
On  February  5,  1997,  Dean  Witter Discover  and  Morgan  Stanley  Group Inc.
announced that they had entered into an  Agreement and Plan of Merger, with  the
combined  company to be  named Morgan Stanley,  Dean Witter, Discover  & Co. The
business of Morgan Stanley Group Inc. and its affiliated companies is  providing
a  wide  range of  financial services  for sovereign  governments, corporations,
institutions and individuals throughout the  world. Dean Witter Discover is  the
direct  parent of  InterCapital and  Dean Witter  Distributors Inc.,  the Fund's
distributor. It  is currently  anticipated that  the transaction  will close  in
mid-1997.  Thereafter, InterCapital  and Dean  Witter Distributors  Inc. will be
direct subsidiaries of Morgan Stanley, Dean Witter, Discover & Co.
    
 
In October, 1993, Allstate  through Allstate Life and  the Company, announced  a
strategic  alliance to  develop, market  and distribute  proprietary annuity and
life insurance products through Dean Witter account executives.
 
THE VARIABLE ACCOUNT
 
Established on February  14, 1983,  the Variable  Account is  a unit  investment
trust   registered  with  the  Securities  and  Exchange  Commission  under  the
Investment Company Act of 1940, but such registration does not signify that  the
Commission  supervises the management or investment practices or policies of the
Variable Account. The investment performance of the Variable Account is entirely
independent of both the investment performance of the Company's general  account
and the performance of any other separate account.
 
The  assets of the Variable Account are held separately from the other assets of
the Company. They are not chargeable with liabilities incurred in the  Company's
other  business operations. Accordingly,  the income, capital  gains and capital
losses, realized or unrealized, incurred on  the assets of the Variable  Account
are  credited to or charged against the  assets of the Variable Account, without
regard to the income, capital gains or  capital losses arising out of any  other
business the Company may conduct.
 
The  Variable Account has been divided into thirteen Sub-Accounts, each of which
invests solely  in  its corresponding  Portfolio  of the  Dean  Witter  Variable
Investment Series. Additional Sub-Accounts may be added at the discretion of the
Company.
 
THE DEAN WITTER VARIABLE INVESTMENT SERIES
 
The  Variable  Account  will  invest exclusively  in  the  Dean  Witter Variable
Investment Series  (the "Fund").  Shares of  the Fund  are offered  to  separate
accounts of the Company which fund variable annuity and variable life contracts.
Shares  of the Fund  are also offered  to separate accounts  of a life insurance
company affiliated with  the Company  which fund variable  annuity and  variable
life  contracts. Shares of the Fund may  also be offered to separate accounts of
certain  non-affiliated  life  insurance  companies  which  fund  variable  life
insurance  contracts.  It  is  conceivable  that in  the  future  it  may become
disadvantageous for both  variable life and  variable annuity contract  separate
accounts to invest in the same underlying fund. Although neither the Company nor
the  Fund currently foresees any such disadvantage, the Fund's Board of Trustees
intends to  monitor events  in  order to  identify any  material  irreconcilable
conflict  between the interests of variable annuity contract owners and variable
life contract owners and to  determine what action, if  any, should be taken  in
response thereto.
 
Investors  in the  High Yield Portfolio  should carefully  consider the relative
risks of investing in  high yield securities, which  are commonly known as  junk
bonds.  Bonds of this type  are considered to be  speculative with regard to the
payment of  interest  and return  of  principal.  Investors in  the  High  Yield
Portfolio  should also  be cognizant  of the fact  that such  securities are not
generally made for short-term investing  and should assess the risks  associated
with an investment in the High Yield Portfolio.
 
Shares  of the Portfolios  of the Fund  are not deposits,  or obligations of, or
guaranteed or endorsed by any bank and  the shares are not federally insured  by
the  Federal Deposit  Insurance Corporation,  the Federal  Reserve Board  or any
other agency.
 
   
The Fund has thirteen portfolios; the Money Market Portfolio, the Quality Income
Plus Portfolio, the High  Yield Portfolio, the  Utilities Portfolio, the  Income
Builder  Portfolio, the Dividend Growth Portfolio, the Capital Growth Portfolio,
the Global Dividend Growth Portfolio, the European Growth Portfolio, the Pacific
Growth Portfolio, the Capital Appreciation  Portfolio, the Equity Portfolio  and
the Strategist Portfolio. Each Portfolio has different investment objectives and
policies and operates as a separate investment fund.
    
 
The  Money Market Portfolio seeks high  current income, preservation of capital,
and liquidity by investing in certain money market instruments, principally U.S.
government securities, bank obligations, and high grade commercial paper.
 
The Quality Income  Plus Portfolio seeks,  as its primary  objective, to earn  a
high   level  of  current   income  and,  as   a  secondary  objective,  capital
appreciation, but only when consistent with its primary objective, by  investing
primarily  in debt  securities issued by  the U.S. Government,  its agencies and
instrumentalities,  including  zero  coupon   securities  and  in   fixed-income
securities  rated A or higher by  Moody's Investors Service, Inc. ("Moody's") or
Standard & Poor's Corporation ("Standard  & Poor's") or non-rated securities  of
comparable  quality, and  by writing covered  call and put  options against such
securities.
 
The High Yield Portfolio seeks, as its  primary objective, to earn a high  level
of current income by investing in a professionally managed diversified portfolio
consisting  principally of fixed-income securities rated Baa or lower by Moody's
or BBB  or lower  by Standard  & Poor's  or non-rated  securities of  comparable
quality
 
                                       11
<PAGE>
which  are commonly known as junk bonds,  and, as a secondary objective, capital
appreciation when consistent with its primary objective.
 
The Utilities Portfolio seeks to provide current income and long-term growth  of
income  and capital by investing primarily in equity and fixed-income securities
of companies engaged in the public utilities industry.
 
The Income Builder Portfolio seeks, as its primary objective, reasonable  income
by  investing  primarily in  common stock  of large-cap  companies which  have a
record of  paying dividends  and  the potential  for maintaining  dividends,  in
preferred  stock and in  securities convertible into common  stocks of small and
mid-cap companies and, as its secondary objective, growth of capital.
 
The Dividend Growth  Portfolio seeks  to provide reasonable  current income  and
long-term growth of income and capital by investing primarily in common stock of
companies  with a  record of paying  dividends and the  potential for increasing
dividends.
 
The Capital  Growth  Portfolio seeks  to  provide long-term  capital  growth  by
investing principally in common stocks.
 
The  Global Dividend Growth Portfolio seeks to provide reasonable current income
and long-term growth  of income  and capital  by investing  primarily in  common
stock  of  companies,  issued by  issuers  worldwide,  with a  record  of paying
dividends and the potential for increasing dividends.
 
The European Growth Portfolio seeks to maximize the capital appreciation of  its
investments  by investing primarily  in securities issued  by issuers located in
Europe.
 
The Pacific Growth Portfolio seeks to  maximize the capital appreciation of  its
investments  by investing primarily  in securities issued  by issuers located in
Asia, Australia and New Zealand.
 
The Capital  Appreciation  Portfolio  seeks long-term  capital  appreciation  by
investing  primarily in common stocks of U.S. companies that offer the potential
for either superior earnings growth and/or appear to be undervalued.
 
The Equity Portfolio seeks, as its primary objective, growth of capital  through
investments  in common stock of companies  believed by the Investment Manager to
have potential for superior  growth and, as a  secondary objective, income  when
consistent with its primary objective.
 
   
The  Strategist Portfolio seeks  a high total investment  return through a fully
managed investment policy utilizing  equity securities, fixed-income  securities
rated  Baa  or higher  by Moody's  or BBB  or  higher by  Standard &  Poor's (or
non-rated securities of  comparable quality), and  money market securities,  and
the writing of covered options on such securities and the collateralized sale of
stock index options.
    
 
All   dividends  and  capital  gains   distributions  from  the  Portfolios  are
automatically reinvested in shares  of the distributing  Portfolio at their  Net
Asset Value.
 
THERE  IS NO ASSURANCE THAT  ANY OF THE PORTFOLIOS  WILL ATTAIN THEIR RESPECTIVE
STATED OBJECTIVES. Additional information  concerning the investment  objectives
and  policies of the Portfolios  can be found in  the current prospectus for the
Fund accompanying this Prospectus.
 
THE PROSPECTUS OF THE FUND SHOULD BE READ CAREFULLY BEFORE ANY DECISION IS  MADE
CONCERNING THE ALLOCATION OF PURCHASE PAYMENTS TO A PARTICULAR PORTFOLIO.
 
THE CONTRACTS
- -----------------------------------------------------------
 
PURCHASE OF THE CONTRACTS
 
The  Company has discontinued the offering of new Contracts. Additional Purchase
Payments to  existing Contracts  are  accepted by  the Company.  All  subsequent
Purchase  Payments must be $25 or more and may  be made at any time prior to the
Income Starting Date. Additional  Purchase Payments may also  be made from  your
bank  account or  your Dean Witter  Active Assets-TM-  Account through Automatic
Additions. Please consult with your  Dean Witter Account Executive for  detailed
information about Automatic Additions.
 
The  Company reserves the right to limit  Purchase Payments in any Contract Year
to three times the initial Purchase Payment made in the first year.
 
CREDITING OF PURCHASE PAYMENTS
 
A Purchase Payment accompanied by a duly completed application will be  credited
to  the Contract within two business days of  receipt by the Company at its home
office. If an  application is not  duly completed, the  Company will credit  the
Purchase Payments to the Contract within five business days or return it at that
time  unless  the applicant  specifically consents  to  the Company  holding the
Purchase Payment until  the application  is complete. The  Company reserves  the
right  to reject any application. Subsequent  Purchase Payments will be credited
to the Contract at the close of  the Valuation Period during which the  Purchase
Payment is received.
 
                                       12
<PAGE>
ALLOCATION OF PURCHASE PAYMENTS
 
On  the application the Owner instructs the Company how to allocate the Purchase
Payment among the  fourteen Investment  Alternatives. Purchase  Payments may  be
allocated  in whole percents, from 0% to  100%, to any Investment Alternative so
long as the total allocation equals 100%. Purchase Payments may be allocated  in
amounts  no less  than $100.  Unless the  Owner notifies  the Company otherwise,
subsequent Purchase Payments are allocated according to the instructions in  the
application.
 
Each  Purchase  Payment will  be credited  to the  Contract as  Variable Account
Accumulation Units equal  to the amount  of Purchase Payment  allocated to  each
Sub-Account  divided by  the Accumulation Unit  value for  that Sub-Account next
computed after the Purchase Payment is credited to the Contract. For example, if
a $10,000 Purchase  Payment is credited  to the Contract  when the  Accumulation
Unit  value equals $10, then  1,000 Accumulation Units would  be credited to the
Contract. The Variable Account, in  turn, purchases shares of the  corresponding
Portfolio (see "Value of Variable Account Accumulation Units," pg. 13).
 
For  a brief summary of how Purchase Payments allocated to the Fixed Account are
credited to the Contract, see "The Fixed Account" on pg. 17.
 
VALUE OF VARIABLE ACCOUNT ACCUMULATION UNITS
 
The Accumulation Units in  each Sub-Account of the  Variable Account are  valued
separately.  The value  of Accumulation Units  may change  each Valuation Period
according to  the  investment  performance  of  the  shares  purchased  by  each
Sub-Account and the deduction of certain expenses and charges.
 
A  Valuation Period is the period  between successive Valuation Dates. It begins
at the  close of  business of  each  Valuation Date  and ends  at the  close  of
business  of the next  succeeding Valuation Date.  A Valuation Date  is each day
that the New York Stock Exchange is open for business and any other day in which
there is a  sufficient degree  of trading  in the  Variable Account's  portfolio
securities  that the value of Accumulation  or Annuity Units might be materially
affected by changes in the value of the portfolio securities. Valuation Dates do
not include such  Federal and non-Federal  holidays as are  observed by the  New
York  Stock  Exchange.  The  New  York  Stock  Exchange  currently  observes the
following holidays:  New Year's  Day  (January 1);  President's Day  (the  third
Monday  in February); Good Friday (the  Friday before Easter); Memorial Day (the
last Monday in May); Independence Day (July  4); Labor Day (the first Monday  in
September);  Thanksgiving Day (the  fourth Thursday in  November); and Christmas
Day (December 25).
 
The value of  an Accumulation  Unit in a  Sub-Account for  any Valuation  Period
equals  the  value of  the  Accumulation Unit  as  of the  immediately preceding
Valuation Period, multiplied by the  Net Investment Factor for that  Sub-Account
for  the  current  Valuation  Period.  The Net  Investment  Factor  is  a number
representing the change on  successive Valuation Dates  in value of  Sub-Account
assets  due to investment income, realized  or unrealized capital gains or loss,
deductions for taxes, if any, and deductions for the Mortality and Expense  Risk
Charge.
 
TRANSFERS
 
The  Owner may transfer funds among the fourteen Investment Alternatives without
charge. THE  COMPANY  GUARANTEES  THAT  NO  CHARGE  WILL  EVER  BE  IMPOSED  FOR
TRANSFERS. Transfers must be at least $100 or the total amount in the Investment
Alternative, whichever is less.
 
Currently  transfers out of any Sub-Account  before the Income Starting Date may
be made at any time. The Company  reserves the right to restrict such  transfers
before  the Income  Starting Date to  once every  30 days after  the Contract is
issued. However,  the Company  will notify  Owners  at least  30 days  prior  to
restricting transfers.
 
After  the Income  Starting Date, transfers  among Sub-Accounts  of the Variable
Account, or from the Variable Account to the Fixed Account may be made only once
every six months and may not be  made during the first six months following  the
Income Starting Date.
 
Transfers  may be made pursuant to telephone instructions if the Owner completes
the telephone authorization form on the application or another form provided  by
the  Company. Telephone  transfer requests  will be  accepted by  the Company if
received at  (800)  654-2397  by  3:00 p.m.  Central  Time.  Telephone  transfer
requests  received at any other telephone number or after 3:00 p.m. Central Time
will not be accepted by the Company. Telephone transfer requests received before
3:00 p.m.  Central Time  are effected  at the  next computed  value.  Otherwise,
transfer requests must be in writing, on a form provided by the Company.
 
Transfers  may also be made automatically through Dollar Cost Averaging prior to
the Income Starting Date. Dollar Cost Averaging permits the Owner to transfer  a
specified  amount every  month from  the Money  Market Sub-Account  to any other
Sub-Account. Transfers made through Dollar Cost Averaging must be $100 or  more.
Dollar  Cost Averaging cannot be used to  transfer amounts to the Fixed Account.
Please consult with your Dean Witter Account Executive for detailed  information
about Dollar Cost Averaging.
 
Transfers  from Sub-Accounts of the  Variable Account will be  made based on the
Accumulation Unit values next computed  after the Company receives the  transfer
request at its home office.
 
For transfers from the Fixed Account, see pg. 18.
 
                                       13
<PAGE>
SURRENDER AND WITHDRAWALS
 
The  Owner may withdraw all or  part of the Contract Value  at any time prior to
the earlier of the death  of the Annuitant (and  any Joint Annuitant), death  of
any  Owner or the Income  Starting Date. The amount  available for withdrawal is
the Contract Value next  computed after the Company  receives the request for  a
withdrawal  at its home office, less any Surrender Charges, Contract Maintenance
Charges or any remaining charge for premium taxes. Withdrawals from the Variable
Account will be paid  within seven days  of receipt of  the request, subject  to
postponement  in certain  circumstances. See  "Delay of  Payments," pg.  19. For
withdrawals from the Fixed Account, see pg. 18.
 
The minimum partial withdrawal is $100. If the Contract Value is less than $500,
or if the Contract  Value after a  partial withdrawal would  be less than  $500,
then  the Company  will treat the  request as one  for a total  surrender of the
Contract and the entire Contract Value, less any charges and premium taxes, will
be paid out.
 
Partial withdrawals may  also be taken  automatically through monthly  Automatic
Income  withdrawals.  Automatic  Income  withdrawals  of  $100  or  more  may be
requested at any  time prior to  the Income Starting  Date. Please consult  with
your  Dean  Witter Account  Executive for  detailed information  about Automatic
Income withdrawals.
 
For Qualified  Contracts,  the  Company  will, at  the  request  of  the  Owner,
automatically  calculate  and withdraw  the  IRS Required  Minimum Distribution.
Withdrawals taken to satisfy IRS  Required Minimum Distribution rules will  have
any  applicable withdrawal  charges waived.  This waiver  is permitted  only for
withdrawals which  satisfy distributions  resulting from  this Contract.  Please
consult  with your Dean Witter Account  Executive for detailed information about
the Required Minimum Distribution program.
 
Withdrawals and surrenders may be subject to  income tax and a 10% tax  penalty.
This tax and penalty is explained in "Federal Tax Matters" on pg. 19.
 
The  full Contract  Maintenance Charge  will be  deducted at  the time  of total
surrender should  the  surrender  occur  on  any  date  other  than  a  Contract
Anniversary.  The total amount  paid at surrender  may be more  or less than the
total Purchase Payments due to prior withdrawals, any deductions, and investment
performance.
 
To complete the partial withdrawals, the Company will cancel Accumulation  Units
in an amount equal to the withdrawal and any Surrender Charge and premium taxes.
The  Owner must name the Investment Alternative  from which the withdrawal is to
be made. If none is named, then the withdrawal request is incomplete and  cannot
be honored.
 
DEFAULT
 
So  long as the Contract Value  is not reduced to zero  or a withdrawal does not
reduce it to less than  $500, the Contract will stay  in force until the  Income
Starting  Date even if  no Purchase Payments  are made after  the first Purchase
Payment.
 
CHARGES AND OTHER DEDUCTIONS
- -----------------------------------------------------------
 
DEDUCTIONS FROM PURCHASE PAYMENTS
 
No deductions  are currently  made from  Purchase Payments.  Therefore the  full
amount of every Purchase Payment is invested in the Investment Alternative(s) to
increase the potential for investment gain.
 
CONTRACT MAINTENANCE CHARGE
 
A  Contract Maintenance  Charge of  $30 is  deducted annually  from the Contract
Value to reimburse the Company for its actual costs in maintaining each Contract
and the Variable Account. THE COMPANY GUARANTEES THAT THE AMOUNT OF THIS  CHARGE
WILL  NOT INCREASE OVER THE LIFE OF  THE CONTRACT. Maintenance costs include but
are not  limited  to  expenses  incurred  in  billing  and  collecting  Purchase
Payments;  keeping records; processing death benefit claims and cash surrenders,
policy changes and proxy statements;  calculating Accumulation Unit and  Annuity
Unit  values; and issuing reports to owners and regulatory agencies. The Company
does not expect to realize a profit from this charge.
 
On each Contract Anniversary, the  Contract Maintenance Charge will be  deducted
from  the  Investment  Alternatives  in the  same  proportion  that  the Owner's
interest in each bears  to the total Contract  Value. After the Income  Starting
Date,  a  pro rata  share  of the  annual  Contract Maintenance  Charge  will be
deducted from each Income Payment. For example, 1/12 of the $30 or $2.50 will be
deducted if  there are  twelve Income  Payments during  the Contract  Year.  The
Contract  Maintenance Charge will  be deducted from  the amount paid  on a total
surrender.
 
Prior to October 4, 1993, Vantage  Computer Systems, Inc. ("Vantage") was  under
contract  with the  Company to  provide Contract  recordkeeping services.  As of
October 4, 1993, the Company provides all Contract recordkeeping services.
 
                                       14
<PAGE>
MORTALITY AND EXPENSE RISK CHARGE
 
A Mortality and Expense Risk Charge will be deducted daily at a rate equal on an
annual basis to 1.0% of the daily net assets in the Variable Account and will be
reflected in the net interest rate credited  to the assets in the Fixed  Account
attributable  to the Contracts.  THE COMPANY GUARANTEES THAT  THE AMOUNT OF THIS
CHARGE WILL NOT INCREASE  OVER THE LIFE  OF THE CONTRACT.  If the Mortality  and
Expense  Risk Charge is insufficient to  cover the Company's mortality costs and
excess expenses, the  Company will bear  the loss.  If the charge  is more  than
sufficient, the Company will retain the balance as profit. The Company currently
expects  a profit from this charge. Any such profit, as well as any other profit
realized by  the  Company  and  held in  its  general  account  (which  supports
insurance  and annuity obligations), would be available for any proper corporate
purpose, including, but not limited to, payment distribution expenses.
 
The mortality  risk arises  from  the Company's  guarantee  to cover  all  death
benefits  and to  make Income  Payments in  accordance with  the annuity tables,
thus, relieving the Annuitants  of the risk of  outliving funds accumulated  for
retirement.
 
The  expense risk arises from the  possibility that the Contract Maintenance and
Surrender Charges,  both  of which  are  guaranteed  not to  increase,  will  be
insufficient to cover actual administrative expenses.
 
SURRENDER CHARGE (CONTINGENT DEFERRED SALES CHARGE)
 
The  Owner may withdraw the  Contract Value any time  before the earliest of the
Income Start Date,  the death  of any  Owner or  the Annuitant's  and any  Joint
Annuitant's death.
 
There  are no Surrender Charges on the first withdrawal of each Contract Year on
amounts up to the Free Withdrawal Amount.  The Free Withdrawal Amount is 10%  of
the  amount of Purchase Payments, excluding those made less than one year before
the date of withdrawal. The maximum portion of the Free Withdrawal Amount  which
may  be withdrawn from the Fixed Account  is limited to the proportion that your
value in  the  Fixed  Account  bears  to  your  total  Contract  Value.  Amounts
surrendered  in  excess  of the  Free  Withdrawal  Amount may  be  subject  to a
Surrender Charge. Free Withdrawal  Amounts not withdrawn in  a Contract Year  do
not  increase  the Free  Withdrawal Amount  in  later Contract  Years. Surrender
Charges, if applicable, will be deducted from the amount paid.
 
In certain cases, distributions  required by federal tax  law (see Statement  of
Additional  Information for "IRS  Required Distribution at  Death Rules") may be
subject to a  Surrender Charge.  Income Payments  under Annuity  Options with  a
specified period of less than 120 months will be subject to a Surrender Charge.
 
Free  Withdrawals and other partial withdrawals will be allocated on a first in,
first out basis to Purchase Payments. For purposes of calculating the amount  of
the  Surrender Charge, Purchase Payments shall include any earnings attributable
to those payments.
 
A Surrender Charge  will be applied  to amounts  withdrawn in excess  of a  Free
Withdrawal Amount as set forth below:
 
<TABLE>
<CAPTION>
                                                       APPLICABLE
                 ELAPSED TIME SINCE                    SURRENDER
               PURCHASE PAYMENT BEING                    CHARGE
                 WITHDRAWN WAS MADE                    PERCENTAGE
- ----------------------------------------------------  ------------
<S>                                                   <C>
Less than 1 year....................................       6%
1 year, but less than 2 years.......................       5%
2 years, but less than 3 years......................       4%
3 years, but less than 4 years......................       3%
4 years, but less than 5 years......................       2%
5 years, but less than 6 years......................       1%
6 years or more.....................................       0%
</TABLE>
 
The  cumulative total of all Surrender Charges  is guaranteed never to exceed 7%
of an Owner's Purchase  Payments (not including  earnings attributable to  those
payments).
 
Surrender Charges will be used to pay sales commissions and other promotional or
distribution  expenses  associated  with  the marketing  of  the  Contracts. The
Company  does  not  anticipate  that  the  Surrender  Charges  will  cover   all
distribution expenses in connection with the Contract.
 
In  addition, federal and state  income tax may be  withheld from withdrawal and
surrender amounts.  Certain surrenders  may also  be subject  to a  federal  tax
penalty. See "Federal Tax Matters," pg. 19.
 
TAXES
 
The Company will deduct any state premium taxes incurred or other taxes incurred
relative  to the Contract  (collectively referred to  as "premium taxes") either
(1) at the Income Starting  Date, or (2) when a  partial surrender in excess  of
the  Free Withdrawal  Amount occurs  (in which  case a  pro rata  portion of the
premium taxes  will be  deducted from  the amount  paid), or  (3) when  a  total
surrender  occurs. Current premium tax  rates range from 0  to 3.5%. The Company
reserves the  right to  deduct  any incurred  premium  taxes from  the  Purchase
Payments.
 
At  the Income Starting Date, any charge for premium taxes will be deducted from
each Investment Alternative in the proportion  that the Owner's interest in  the
Investment Alternative bears to the total Contract Value.
 
DEAN WITTER VARIABLE INVESTMENT SERIES ("FUND") EXPENSES
 
A  complete description of  the expenses and deductions  from the Portfolios are
found in the Fund's prospectus which is attached to this prospectus.
 
                                       15
<PAGE>
BENEFITS UNDER THE CONTRACT
- -----------------------------------------------------------
 
DEATH BENEFITS PRIOR TO THE INCOME STARTING DATE
 
If any Owner  or the Annuitant  dies prior to  the Income Starting  Date, and  a
Death  Benefit is elected, it  will be paid to  the Beneficiary. If a Contingent
Annuitant survives the Annuitant  or Joint Annuitant, no  Death Benefit will  be
paid  unless  the Contingent  Annuitant dies  before the  earlier of  the Income
Starting Date or the day on which  the Contract Value must be distributed  under
the IRS Required Distribution Rules (see below). (For purposes of payment of the
Death  Benefit, the Joint  Annuitant must have  been named prior  to January 19,
1985). The Death Benefit  will be the  greater of: (a) the  sum of all  Purchase
Payments  less  any amounts  deducted  in connection  with  partial withdrawals,
including any Surrender Charges; or (b) the Contract Value.
 
The Company will not pay any Death Benefit until it receives Due Proof of Death.
Generally, the Beneficiary  may elect an  Annuity Option or  a lump sum  payment
within 180 days after the Company receives Due Proof of Death. If no election is
received within 180 days, a lump sum will be paid automatically.
 
The  value of the Death  Benefit will be determined at  the end of the Valuation
Period during which the Company receives the later of Due Proof of Death and  an
election for either a lump sum payment or an Annuity Option.
 
DEATH BENEFITS AFTER THE INCOME STARTING DATE
 
If  any Owner, who  is not the  Annuitant, dies after  the Income Starting Date,
payments will  continue  to  be  made under  the  particular  income  plan.  The
Beneficiary will be the recipient of any such payments.
 
If  the  Annuitant and  Joint  Annuitant, if  applicable,  die after  the Income
Starting Date, the Company will pay the Death Benefit, if any, contained in  the
particular Annuity Option elected.
 
INCOME PAYMENTS
- -----------------------------------------------------------
 
INCOME STARTING DATE
 
The  Income Starting Date is  the day that Income  Payments will start under the
Contract. The Owner may change the Income Starting Date at any time by notifying
the Company in writing of the change at least 30 days before the current  Income
Starting  Date. The Income Starting Date must be  (a) at least a month after the
Issue Date; (b) the  first day of a  calendar month; and (c)  no later than  the
first  day of the calendar month after the Annuitant reaches age 85, or the 10th
anniversary date, if later.
 
Unless the Owner notifies the Company in writing otherwise, the Income  Starting
Date  will be:  for Non-Qualified Contracts  the later  of the first  day of the
calendar month after the Annuitant reaches age 85 or the 10th anniversary  date;
for  Qualified Contracts, April first of the calendar year following the year in
which the Annuitant reaches age 70 1/2.
 
AMOUNT OF VARIABLE ANNUITY INCOME PAYMENTS
 
The amount  of Variable  Annuity  Income Payments  depends upon  the  investment
experience  of the Portfolios selected by the  Owner, any premium taxes, the age
and sex  of  the  Annuitant(s),  and the  Annuity  Option  chosen.  The  Company
guarantees that the Income Payments will not be affected by (1) actual mortality
experience and (2) amount of the Company's administration expenses.
 
The  Contracts offered by this prospectus (except in states which require unisex
annuity tables) contain life annuity  tables that provide for different  benefit
payments  to men and women of the same age. Nevertheless, in accordance with the
U.S. Supreme  Court's  decision in  ARIZONA  GOVERNING COMMITTEE  V  NORRIS,  in
certain  employment related situations,  annuity tables that do  not vary on the
basis of  sex may  be  used. Accordingly,  if  the Contract  is  to be  used  in
connection  with an employment-related retirement or benefit plan, consideration
should be given, in consultation with legal counsel, to the impact of NORRIS  on
any such plan before making any contributions under these Contracts.
 
The  sum of Income Payments may be more or less than the total Purchase Payments
made because  (a) Variable  Annuity  Income Payments  vary with  the  investment
results  of the underlying  Portfolios; (b) the Owner  bears the investment risk
with respect  to  all  amounts  allocated  to  the  Variable  Account,  and  (c)
Annuitants  may die before the actuarially expected  date of death. As such, the
total amount of Income Payments cannot be predicted.
 
                                       16
<PAGE>
The duration of the Annuity Option may affect the dollar amounts of each  Income
Payment.  For example, if an  Annuity Option guaranteed for  life is chosen, the
Income Payments may be greater or  lesser than Income Payments under an  Annuity
Option for a specified period depending on the life expectancy of the Annuitant.
 
If  the actual  net investment  experience is  less than  the assumed investment
rate, then the dollar amount of  the annuity payments will decrease. The  dollar
amount  of the annuity payments will stay level if the net investment experience
equals the assumed investment rate and the dollar amount of the annuity payments
will increase if the  net investment experience  exceeds the assumed  investment
rate.  For  purposes  of  the  Variable  Annuity  Income  Payments,  the assumed
investment rate is 4%.
 
If the Contract Value to be applied to an Annuity Option is less than $2,000, or
if the monthly payments determined under  the Annuity Option are less than  $20,
the  Company may  pay the  Contract Value in  a lump  sum or  change the payment
frequency to an interval which results in Income Payments of at least $20.
 
ANNUITY OPTIONS
 
The Owner may elect a completely Fixed Annuity, a completely Variable Annuity or
a combination  Fixed and  Variable Annuity.  Up  to 30  days before  the  Income
Starting Date, the Owner may change the Annuity Option or request any other form
of  annuity agreeable to both the Company and the Owner. Subsequent changes will
not be permitted. If an Annuity Option is chosen which depends on the  Annuitant
or  Joint Annuitant's life, proof of age will be required before Income Payments
begin. Premium taxes may be assessed. The Annuity Options include:
 
ANNUITY OPTION 1--LIFE WITH PAYMENTS GUARANTEED FOR 120 MONTHS.
Monthly payments  will be  made  for as  long as  the  Annuitant lives.  If  the
Annuitant  dies before 120 monthly payments have been made, the remainder of the
120 guaranteed monthly payments will  be paid to the  Owner, or if deceased,  to
the surviving Beneficiary.
 
ANNUITY OPTION 2--JOINT AND LAST SURVIVOR
Monthly  payments beginning on the Income Starting Date will be made for as long
as either the Annuitant or Joint Annuitant is living. It is possible under  this
option  that only one  monthly payment will  be made if  the Annuitant and Joint
Annuitant both  die before  the second  payment  is made,  or only  two  monthly
payments will be made if they both die before the third payment, and so forth.
 
ANNUITY OPTION 3--PAYMENTS FOR A SPECIFIED PERIOD
Monthly  payments beginning  on the  Income Starting Date  will be  made for any
specified period of at  least 120 months.  A Surrender Charge  may apply if  the
specified  period is  less than  120 months. Payments  under this  option do not
depend on the continuation of the Annuitant's life. If the Owner dies before the
end of  the  specified  period, the  remaining  payments  will be  paid  to  the
surviving  Beneficiary. The Mortality  and Expense Risk  Charge is deducted from
the Variable Account even though the  Company does not bear any mortality  risk.
If  Annuity Option 3  is chosen and  the proceeds are  derived from the Variable
Account, the Owner  or Beneficiary  may surrender the  Contract at  any time  by
notifying the Company in writing.
 
In  the event  that an  Annuity Option  is not  selected, the  Company will make
Income  Payments  in  accordance  with  Annuity  Option  1.  At  the   Company's
discretion,  other Annuity  Options may be  available upon  request. The Company
currently uses sex-distinct annuity tables. However, if legislation is passed by
Congress or the  states, the Company  reserves the right  to use annuity  tables
which do not distinguish on the basis of sex.
 
THE FIXED ACCOUNT
- -----------------------------------------------------------
 
CONTRIBUTIONS  UNDER THE FIXED PORTION OF  THE ANNUITY CONTRACT AND TRANSFERS TO
THE FIXED  PORTION BECOME  PART OF  THE GENERAL  ACCOUNT OF  THE COMPANY,  WHICH
SUPPORTS   INSURANCE  AND   ANNUITY  OBLIGATIONS.   BECAUSE  OF   EXEMPTIVE  AND
EXCLUSIONARY  PROVISIONS,  INTERESTS  IN  THE  GENERAL  ACCOUNT  HAVE  NOT  BEEN
REGISTERED  UNDER THE SECURITIES  ACT OF 1933  ("1933 ACT"), NOR  IS THE GENERAL
ACCOUNT REGISTERED AS AN INVESTMENT COMPANY UNDER THE INVESTMENT COMPANY ACT  OF
1940  ("1940 ACT"). ACCORDINGLY,  NEITHER THE GENERAL  ACCOUNT NOR ANY INTERESTS
THEREIN ARE GENERALLY SUBJECT TO THE PROVISIONS OF THE 1933 OR 1940 ACTS AND THE
COMPANY HAS  BEEN  ADVISED  THAT  THE  STAFF  OF  THE  SECURITIES  AND  EXCHANGE
COMMISSION  HAS NOT REVIEWED THE DISCLOSURES  IN THIS PROSPECTUS WHICH RELATE TO
THE FIXED  PORTION.  DISCLOSURES REGARDING  THE  FIXED PORTION  OF  THE  ANNUITY
CONTRACT  AND THE GENERAL ACCOUNT, HOWEVER,  MAY BE SUBJECT TO CERTAIN GENERALLY
APPLICABLE PROVISIONS OF THE  FEDERAL SECURITIES LAWS  RELATING TO THE  ACCURACY
AND COMPLETENESS OF STATEMENTS MADE IN PROSPECTUSES.
 
GENERAL DESCRIPTION
 
The  Fixed Account is made up of all of the general assets of the Company, other
than those  in the  Variable Account  and any  other segregated  asset  account.
Instead  of the Owner bearing the investment risk  as is the case for amounts in
the Variable Account, the Company bears the full investment risk for all amounts
in  the  Fixed  Account.  The  Company   has  sole  discretion  to  invest   the
 
                                       17
<PAGE>
assets  of the Fixed Account, subject  to applicable law. The Company guarantees
that the amounts allocated to the Fixed  Account will be credited interest at  a
net  effective interest rate of at least  4.0% per year. Currently the amount of
investment income in excess of 4.0% allocated to contracts participating in  the
Fixed  Account will vary periodically in the sole discretion of the Company. Any
interest held in the  Fixed Account does  not entitle an Owner  to share in  the
investment experience of the Fixed Account.
 
The  Company has revised the Fixed Account. Money deposited in the revised Fixed
Account earns interest at the current rate  in effect at the time of  allocation
or  transfer until the first  renewal date. The first  renewal date is January 1
following the  date  of the  allocation  or  transfer into  the  Fixed  Account.
Subsequent  renewal dates will be on anniversaries of the first renewal date. On
or about each renewal date,  the Company will notify  the Owner of the  interest
rate(s)  for  the  calendar  year  then starting.  This  interest  rate  will be
guaranteed by the Company for  the calendar year and will  not be less than  4%.
The  Company may declare more than one  interest rate for different monies based
upon the date of allocation or transfer to the Fixed Account.
 
ANY INTEREST CREDITED TO AMOUNTS ALLOCATED TO THE FIXED ACCOUNT IN EXCESS OF THE
GUARANTEED RATE OF 4.0% PER  YEAR WILL BE DETERMINED  IN THE SOLE DISCRETION  OF
THE COMPANY.
 
TRANSFERS, SURRENDERS, AND WITHDRAWALS
 
Amounts  may be transferred from the Sub-Accounts of the Variable Account to the
Fixed Account,  and  prior to  the  Income Starting  Date  amounts may  also  be
transferred  from the Fixed Account to  Sub-Accounts of the Variable Account. No
charge will ever be imposed for such transfers.
 
Prior to  the Income  Starting Date,  amounts may  not be  transferred from  the
Variable Account to the Fixed Account until thirty days after the Issue Date and
may  be transferred  thereafter only  once every  thirty days.  However, amounts
invested in the Fixed Account prior to  the date that the revised Fixed  Account
became  available may not be transferred from the Fixed Account until six months
after the Issue Date and those amounts may be transferred only every six months.
The maximum amount which  may be transferred from  the revised Fixed Account  to
the Variable Account is limited to 25% of the value in the revised Fixed Account
as  of December 31  of the prior  calendar year (except  with respect to amounts
which were allocated to the Fixed Account prior to the date of availability).
 
If the first renewal  interest rate is  less than the current  rate that was  in
effect  at the  time money  was allocated  or transferred  to the  revised Fixed
Account, the  transfer restriction  for that  money will  be waived  during  the
60-day period following the first renewal date.
 
After  the Income Starting Date no transfers may be made from the Fixed Account.
Transfers from the Variable Account to the Fixed Account may not be made for six
months after the Income Starting Date and may be made thereafter only once every
six months. The Company  reserves the right to  waive restrictions on  transfers
that are contained in the Contract.
 
Surrenders  and withdrawals from the Fixed Account  may be delayed for up to six
months. After the Income Starting Date, no surrenders or withdrawals may be made
from the Fixed Account.
 
GENERAL MATTERS
- -----------------------------------------------------------
 
OWNER
 
The Owner has the  sole right to  exercise all rights  and privileges under  the
Contract, except as otherwise provided in the Contract.
 
Generally, an Owner who is not a natural person is required to include in income
each  year  any  increase  in the  cash  value  to the  extent  the  increase is
attributable to contributions to the Contract made after February 28, 1986.
 
BENEFICIARY
 
The Beneficiary  can mean  either  the Owner's  Beneficiary or  the  Annuitant's
Beneficiary, but not both at the same time. Subject to the terms of any existing
assignment  or the rights  of any irrevocable Beneficiary,  the Owner may change
the Owner's Beneficiary or Annuitant's Beneficiary while the Annuitant is living
by notifying the Company in writing. Any change will be effective at the time it
is signed by the Owner, whether or  not the Annuitant is living when the  change
is  received by the Company. The Company will  not, however, be liable as to any
payment or settlement made prior to receiving the written notice.
 
                                       18
<PAGE>
Unless otherwise  provided in  the Beneficiary  designation, the  rights of  any
Beneficiary  predeceasing the Annuitant will revert  to the Owner or the Owner's
estate. Multiple Beneficiaries may  be named. Unless  otherwise provided in  the
Beneficiary  designation, if more  than one Beneficiary  survives the Annuitant,
the surviving Beneficiaries will share equally in any amounts due.
 
DELAY OF PAYMENTS
 
Payment of any  amounts due from  the Variable Account  under the Contract  will
occur within seven days, unless:
 
    1.   The New York Stock Exchange is  closed for other than usual weekends or
holidays, or trading on the Exchange is otherwise restricted;
 
    2.    An  emergency  exists  as  defined  by  the  Securities  and  Exchange
Commission; or
 
    3.   The Securities and Exchange Commission permits delay for the protection
of the security holders.
 
For payment or transfers from the Fixed Account, see pg. 18.
 
ASSIGNMENTS
 
The contract may be assigned  prior to the Income  Starting Date and during  the
Annuitant's or, if applicable, Joint Annuitant's lifetime, subject to the rights
of  any  irrevocable  Beneficiary.  Any assignment  will  not  be  binding until
received in writing  by the  Company. The Company  will not  be responsible  for
deciding  if an assignment is valid or  the extent of an assignee's interest. An
assignment may result in income tax liability to the owner.
 
No Beneficiary may assign benefits under the Contract until they are due and, to
the extent  permitted by  law, payments  are not  subject to  the debts  of  any
Beneficiary or to any judicial process for payment of the Beneficiary's debts.
 
MODIFICATION
 
The  Company may not modify the Contract without the consent of the Owner except
to make the  Contract meet  the requirements of  the Investment  Company Act  of
1940,  or to make the  Contract comply with any  changes in the Internal Revenue
Code or required by the Code or by any other applicable law in order to continue
treatment of the Contract as an annuity.
 
CUSTOMER INQUIRIES
 
The Owners  or  any  persons  interested in  the  Contract  may  make  inquiries
regarding  the  Contract  by  calling  or  writing  their  Dean  Witter  Account
Executive.
 
FEDERAL TAX MATTERS
- -----------------------------------------------------------
 
INTRODUCTION
 
THE FOLLOWING  DISCUSSION IS  GENERAL AND  IS NOT  INTENDED AS  TAX ADVICE.  THE
COMPANY  MAKES  NO GUARANTEE  REGARDING  THE TAX  TREATMENT  OF ANY  CONTRACT OR
TRANSACTION  INVOLVING  A  CONTRACT.  Federal,   state,  local  and  other   tax
consequences  of ownership or receipt of distributions under an annuity Contract
depend on the  individual circumstances  of each  person. If  you are  concerned
about  any tax  consequences with regard  to your  individual circumstances, you
should consult a competent tax adviser.
 
TAXATION OF ANNUITIES IN GENERAL
 
TAX DEFERRAL. Generally, an annuity Contract Owner is not taxed on increases  in
the Contract Value until a distribution occurs. This rule applies only where (1)
the  Owner is a natural person, (2)  the investments of the Variable Account are
"adequately diversified"  in accordance  with Treasury  Department  ("Treasury")
regulations and (3) the Company, instead of the annuity Owner, is considered the
Owner of the Variable Account assets for federal income tax purposes.
 
   
NON-NATURAL  OWNERS. As a  general rule, annuity  Contracts owned by non-natural
persons are not treated as annuity Contracts for federal income tax purposes and
the income on such Contracts is taxed as ordinary income received or accrued  by
the  Owner during the taxable year. There  are several exceptions to the general
rule for  Contracts owned  by non-natural  persons which  are discussed  in  the
Statement of Additional Information.
    
 
DIVERSIFICATION  REQUIREMENTS. For  a Contract to  be treated as  an annuity for
federal income tax  purposes, the investments  in the Variable  Account must  be
"adequately  diversified"  in  accordance  with the  standards  provided  in the
Treasury regulations.  If  the  investments  in the  Variable  Account  are  not
adequately  diversified, then  the Contract  will not  be treated  as an annuity
Contract for federal income tax purposes and the Contract Owner will be taxed on
the excess of the Contract Value over the
 
                                       19
<PAGE>
investment in the Contract. Although the Company does not have control over  the
Fund   or  its   investments,  the  Company   expects  the  Fund   to  meet  the
diversification requirements.
 
   
OWNERSHIP TREATMENT. In connection with the  issuance of the regulations on  the
adequate  diversification standards,  the Department  of the  Treasury announced
that the regulations  do not  provide guidance  concerning the  extent to  which
contract  owners may direct  their investments among  sub-accounts of a Variable
Account. The Internal Revenue Service has previously stated in published rulings
that a variable contract owner will be considered the owner of separate  account
assets if the owner possesses incidents of ownership in those assets such as the
ability  to  exercise  investment  control  over the  assets.  At  the  time the
diversification regulations were issued, the Treasury Department announced  that
guidance  would be issued in  the future regarding the  extent that owners could
direct their investments among sub-accounts  without being treated as owners  of
the  underlying  assets  of  the  Variable  Account.  As  of  the  date  of this
prospectus, no such guidance has been issued.
    
 
   
The ownership  rights under  this  contract are  similar  to, but  different  in
certain respects from, those described by the Service in rulings in which it was
determined  that contract owners were not owners of separate account assets. For
example, the owner of this contract has the choice of more investment options to
which to allocate  premiums and  contract values, and  may be  able to  transfer
among investment options more frequently than in such rulings. These differences
could  result in the contract  owner being treated as  the owner of the Variable
Account. In  those circumstances,  income  and gain  from the  Variable  Account
assets  would be includible  in the Contract Owner's  gross income. In addition,
the Company does not know what standards will be set forth in the regulations or
rulings which the  Treasury Department  has stated it  expects to  issue. It  is
possible  that  Treasury Department's  position,  when announced,  may adversely
affect the tax treatment of existing contracts. The Company, therefore, reserves
the right to modify the contract as necessary to attempt to prevent the contract
owner from being considered the federal tax owner of the assets of the  Variable
Account.  However, the Company makes no  guarantee that such modification to the
contract will be successful.
    
 
   
DELAYED MATURITY DATE. If  the contract's scheduled maturity  date is at a  time
when  the  annuitant has  reached  an advanced  age, e.g.,  past  age 85,  it is
possible that the contract would  not be treated as  an annuity. In that  event,
the  income and gains  under the contract  would be currently  includible in the
owner's income.
    
 
   
TAXATION OF PARTIAL AND  FULL WITHDRAWALS. In the  case of a partial  withdrawal
under  a Non-Qualified Contract, amounts received  are taxable to the extent the
Contract Value, without regard to  surrender charges, exceeds the investment  in
the  Contract. In the case  of a partial withdrawal  under a Qualified Contract,
the portion of the payment that bears  the same ratio to the total payment  that
the investment in the Contract bears to the Contract Value, can be excluded from
income.  In the case  of a full  withdrawal under a  Non-Qualified Contract or a
Qualified Contract, the amount  received will be taxable  only to the extent  it
exceeds  the investment in  the Contract. If an  individual transfers an annuity
Contract without full  and adequate  consideration to  a person  other than  the
individual's  spouse (or to  a former spouse  incident to a  divorce), the Owner
will be taxed on the difference between the Contract Value and the investment in
the Contract  at  the time  of  transfer. Other  than  in the  case  of  certain
Qualified  Contracts, any amount  received as a  loan under a  Contract, and any
assignment or pledge (or agreement to assign or pledge) of the Contract Value is
treated as a withdrawal of such amount or portion.
    
 
TAXATION OF  ANNUITY  PAYMENTS.  Generally,  the rule  for  income  taxation  of
payments  received  from an  annuity  Contract provides  for  the return  of the
Owner's investment in the  Contract in equal tax-free  amounts over the  payment
period. The balance of each payment received is taxable. In the case of Variable
Annuity  payments,  the amount  excluded from  taxable  income is  determined by
dividing the  investment  in  the  Contract by  the  total  number  of  expected
payments. In the case of fixed annuity payments, the amount excluded from income
is  determined by multiplying the payment by  the ratio of the investment in the
Contract (adjusted  for any  refund  feature or  period  certain) to  the  total
expected value of annuity payments for the term of the Contract.
 
TAXATION  OF ANNUITY DEATH BENEFITS. Amounts  may be distributed from an annuity
Contract because of the death of an Owner or Annuitant. Generally, such  amounts
are  includible in  income as  follows: (1)  if distributed  in a  lump sum, the
amounts are taxed in the same manner as a full withdrawal or (2) if  distributed
under  an annuity option, the amounts are taxed in the same manner as an annuity
payment.
 
PENALTY TAX  ON PREMATURE  DISTRIBUTIONS. There  is  a 10%  penalty tax  on  the
taxable  amount  of  any  premature distribution  from  a  Non-Qualified annuity
Contract. The penalty tax  generally applies to any  distribution made prior  to
the  Owner attaining  age 59  1/2. However,  there should  be no  penalty tax on
distributions to Owners (1) made on or  after the Owner attains age 59 1/2;  (2)
made  as a result of the Owner's  death or disability; (3) made in substantially
equal periodic  payments over  life or  life expectancy;  or (4)  made under  an
immediate annuity. Similar rules apply for distributions under certain Qualified
Contracts.  Please see the Statement of  Additional Information for a discussion
of other situations in which the penalty tax may not apply.
 
AGGREGATION OF ANNUITY CONTRACTS. All Non-Qualified annuity Contracts issued  by
the  Company (or its affiliates) to the same Owner during any calendar year will
be aggregated and treated  as one annuity Contract  for purposes of  determining
the taxable amount of a distribution.
 
TAX QUALIFIED CONTRACTS
 
   
Annuity  contracts may be  used as investments with  certain tax qualified plans
such as: (1) Individual Retirement Annuities
    
 
                                       20
<PAGE>
   
under Section 408(b) of  the Code; (2) Simplified  Employee Pension Plans  under
Section  408(k) of  the Code;  (3) Savings  Incentive Match  Plans for Employees
(SIMPLE) Plans under  Section 408(p) of  the Code; (4)  Tax Sheltered  Annuities
under  Section 403(b) of the  Code; (5) Corporate and  Self Employed Pension and
Profit Sharing  Plans;  and  (6)  State  and  Local  Government  and  Tax-Exempt
Organization  Deferred Compensation Plans. In the  case of certain tax qualified
plans, the terms of the  plans may govern the  right to benefits, regardless  of
the terms of the contract.
    
 
RESTRICTIONS UNDER SECTION 403(b) PLANS. Section 403(b) of the Code provides for
tax-deferred  retirement savings plans  for employees of  certain non-profit and
educational organizations.  In  accordance  with  the  requirements  of  Section
403(b),  any  annuity  Contract  used  for  a  403(b)  plan  must  provide  that
distributions  attributable  to  salary   reduction  contributions  made   after
12/31/88,  and all earnings on salary  reduction contributions, may be made only
after the employee  attains age 59  1/2, separates from  service, dies,  becomes
disabled   or  on  the  account  of   hardship  (earnings  on  salary  reduction
contributions may not be distributed on the account of hardship).
 
INCOME TAX WITHHOLDING
 
The Company is required to withhold federal income  tax at a rate of 20% on  all
"eligible  rollover distributions" unless an individual elects to make a "direct
rollover" of such  amounts to  another qualified plan  or Individual  Retirement
Account  or Annuity  ("IRA"). Eligible rollover  distributions generally include
all distributions from Qualified Contracts,  excluding IRAs, with the  exception
of  (1) required minimum  distributions, or (2) a  series of substantially equal
periodic payments made over a  period of at least 10  years, or the life  (joint
lives)  of  the  participant  (and  beneficiary).  For  any  distributions  from
Non-Qualified annuity Contracts, or distributions from Qualified Contracts which
are not considered eligible rollover distributions, the Company may be  required
to  withhold federal and state  income taxes unless the  recipient elects not to
have taxes withheld and properly notifies the Company of such election.
 
VOTING RIGHTS
- -----------------------------------------------------------
 
The Owner or anyone with  a voting interest in  the Sub-Account of the  Variable
Account  may instruct the Company on how  to vote at shareholder meetings of the
Fund. The Company will  solicit and cast each  vote according to the  procedures
set  up by the Fund and to the  extent required by law. The Company reserves the
right to vote the eligible shares in its own right, if subsequently permitted by
the Investment Company Act of 1940, its regulations or interpretations thereof.
 
Before the Income  Starting Date,  the Owner holds  the voting  interest in  the
Sub-Account.  (The number of votes for the  Owner will be determined by dividing
the Contract Value  attributable to  a Sub-Account by  the net  asset value  per
share of the applicable eligible Portfolio.)
 
After  the Income  Starting Date, the  person receiving Income  Payments has the
voting interest. After the  Income Starting Date, the  votes decrease as  Income
Payments  are made and as the reserves  for the Contract decrease. That person's
number of votes  will be determined  by dividing the  reserve for such  Contract
allocated  to the applicable Sub-Account by the net asset value per share of the
corresponding eligible Portfolio.
 
SALES COMMISSION
- -----------------------------------------------------------
 
From its profits  the Company may  pay a  maximum sales commission  of 5.75%  of
Purchase  Payments and an annual sales administration expense allowance of up to
0.125% of the average net  assets of the Fixed  Account to Dean Witter  Reynolds
Inc.,  the principal underwriter of the Contracts. Dean Witter will pay annually
to its Account Executives from its profits,  an amount equal to .10% of the  net
assets  of the Variable Account attributable  to Contracts issued and sold after
1984 and any subsequent additions thereon.
 
                                       21
<PAGE>
                      STATEMENT OF ADDITIONAL INFORMATION
                               TABLE OF CONTENTS
 
Introduction................................................       3
  Northbrook Life Insurance Company.........................       3
  Dean Witter Reynolds Inc..................................       3
    Additions, Deletions or Substitutions of Investments....       3
    Reinvestment............................................       3
The Contract................................................       3
  Value of Variable Account Accumulation Units..............       3
  Performance Data..........................................       4
Standardized Total Returns..................................       5
  Other Total Returns.......................................       5
  Transfers.................................................       5
  Tax-Free Exchanges (1035).................................       6
General Matters.............................................       6
  Incontestability..........................................       6
  Settlements...............................................       6
  Safekeeping of the Variable Account's Assets..............       6
  Experts...................................................       6
  Legal Matters.............................................       6
Federal Tax Matters.........................................       7
  Introduction..............................................       7
  Taxation of Northbrook Life Insurance Company.............       7
  Exceptions to the Non-Natural Owner Rule..................       7
  Penalty Tax on Premature Distributions....................       7
  IRS Required Distribution at Death Rules..................       8
  Qualified Plans...........................................       8
Types of Qualified Plans....................................       8
  Individual Retirement Annuities...........................       8
  Simplified Employee Pension Plans.........................       8
  Tax Sheltered Annuities...................................       8
  Corporate and Self-Employed Pension and Profit Sharing
   Plans....................................................       8
  State and Local Government and Tax-Exempt Organization
   Deferred Compensation Plans..............................       9
Voting Rights...............................................       9
Sales Commissions...........................................       9
Financial Statements........................................     F-1
 
                                       22
<PAGE>
ORDER FORM
- -----------------------------------------------------------
 
/ / Please send me a copy of the most recent Statement of Additional Information
    for the Northbrook Variable Annuity.
 
<TABLE>
<S>                       <C>
- ------------------------  ---------------------------------------------
         (Date)                               (Name)
 
                          ---------------------------------------------
                                         (Street Address)
 
                          ---------------------------------------------
                            (City)            (State)            (Zip
                                              Code)
</TABLE>
 
Send to:  Northbrook Life Insurance Company
          P.O. Box 94040
          Palatine, IL 60094-4040
 
          Attn:  Annuity Services
 
                                       23
<PAGE>
                      (This Page Left Intentionally Blank)
 
                                       24
<PAGE>
                      STATEMENT OF ADDITIONAL INFORMATION
 
                      NORTHBROOK VARIABLE ANNUITY ACCOUNT
 
                                       OF
 
                       NORTHBROOK LIFE INSURANCE COMPANY
 
                                 P.O. BOX 94040
 
                            PALATINE, IL 60094-4040
 
                     INDIVIDUAL VARIABLE ANNUITY CONTRACTS
 
                                 DISTRIBUTED BY
 
                           DEAN WITTER REYNOLDS INC.
 
                             TWO WORLD TRADE CENTER
 
                            NEW YORK, NEW YORK 10048
 
                              -------------------
 
This Statement of Additional Information supplements the information in the
Prospectus for the Flexible Premium Deferred Variable Annuity Contract
("Contract") offered by Northbrook Life Insurance Company ("Company"), a wholly
owned subsidiary of Allstate Life Insurance Company. The Contract is primarily
designed to aid individuals in long-term financial planning and it can be used
for retirement planning regardless of whether the plan qualifies for special
federal income tax treatment.
 
THIS STATEMENT OF ADDITIONAL INFORMATION IS NOT A PROSPECTUS AND SHOULD BE READ
           ONLY IN CONJUNCTION WITH THE PROSPECTUS FOR THE CONTRACT.
 
YOU MAY OBTAIN A COPY OF THE PROSPECTUS FROM DEAN WITTER REYNOLDS INC. ("DEAN
   WITTER"), THE PRINCIPAL UNDERWRITER AND DISTRIBUTOR OF THE CONTRACT, BY
          CALLING OR WRITING DEAN WITTER AT THE ADDRESS LISTED ABOVE.
 
   
      The Prospectus, dated May 1, 1997, has been filed with the United States
                      Securities and Exchange Commission.
    
 
   
                               DATED MAY 1, 1997
    
<PAGE>
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                                                PAGE
                                                                                                                -----
<S>                                                                                                          <C>
Introduction...............................................................................................           3
  Northbrook Life Insurance Company........................................................................           3
  Dean Witter Reynolds Inc.................................................................................           3
    Additions, Deletions or Substitutions of Investments...................................................           3
    Reinvestment...........................................................................................           3
The Contract...............................................................................................           3
  Value of Variable Account Accumulation Units.............................................................           3
  Performance Data.........................................................................................           4
Standardized Total Returns.................................................................................           5
  Other Total Returns......................................................................................           5
  Transfers................................................................................................           6
  Tax-Free Exchanges (1035)................................................................................           6
General Matters............................................................................................           7
  Incontestability.........................................................................................           7
  Settlements..............................................................................................           7
  Safekeeping of the Variable Account's Assets.............................................................           7
  Experts..................................................................................................           7
  Legal Matters............................................................................................           7
Federal Tax Matters........................................................................................           7
  Introduction.............................................................................................           7
  Taxation of Northbrook Life Insurance Company............................................................           7
  Exceptions to the Non-Natural Owner Rule.................................................................           8
  Penalty Tax on Premature Distributions...................................................................           8
  IRS Required Distribution at Death Rules.................................................................           8
  Qualified Plans..........................................................................................           9
Types of Qualified Plans...................................................................................           9
  Individual Retirement Annuities..........................................................................           9
  Simplified Employee Pension Plans........................................................................           9
  Savings Incentive Match Plans for Employees (SIMPLE Plans)...............................................           9
  Tax Sheltered Annuities..................................................................................           9
  Corporate and Self-Employed Pension and Profit Sharing Plans.............................................           9
  State and Local Government and Tax-Exempt Organization Deferred Compensation Plans.......................          10
Voting Rights..............................................................................................          10
Sales Commissions..........................................................................................          10
Financial Statements.......................................................................................         F-1
</TABLE>
 
                                       2
<PAGE>
                                  INTRODUCTION
 
NORTHBROOK LIFE INSURANCE COMPANY
 
    Incorporated in 1978 as a life insurance company under the laws of the State
of Illinois, Northbrook Life Insurance Company ("Company") has done business
continuously since that time as "Northbrook Life Insurance Company." The
Company's products, annuities and individual life insurance, have been approved
by the various states where offered.
 
DEAN WITTER REYNOLDS INC.
 
    Dean Witter Reynolds Inc. ("Dean Witter") is the principal underwriter and
distributor of the Contracts. Dean Witter is a wholly-owned subsidiary of Dean
Witter, Discover & Co. Dean Witter is located at Two World Trade Center, New
York, New York Dean Witter is a member of the New York Stock Exchange and the
National Association of Securities Dealers, Inc., and its subsidiary, Dean
Witter InterCapital, Inc. ("InterCapital"), is registered with the Securities
and Exchange Commission as an investment advisor.
 
    ADDITIONS, DELETIONS OR SUBSTITUTIONS OF INVESTMENTS
 
    The Company retains the right, subject to any applicable law, to make
additions to, deletions from or substitutions for the Portfolio shares held by
any Sub-Account of the Variable Account. The Company reserves the right to
eliminate the shares of any of the Portfolios and to substitute shares of
another Portfolio of the Fund, or of another open-end, registered investment
company, if the shares of the Portfolio are no longer available for investment,
or if, in the Company's judgment, investment in any Portfolio would become
inappropriate in view of the purposes of the Variable Account. Substitutions of
shares attributable to an Owner's interest in a Sub-Account will not be made
until the Owner has been notified of the change, and until the Securities and
Exchange Commission has approved the change, to the extent such notification and
approval is required by the Investment Company Act of 1940. Nothing contained in
this Statement of Additional Information shall prevent the Variable Account from
purchasing other securities for other series or classes of contracts, or from
effecting a conversion between series or classes of contracts on the basis of
requests made by Owners.
 
    The Company may also establish additional Sub-Accounts of the Variable
Account. Each additional Sub-Account would purchase shares in a new Portfolio of
the Fund or in another mutual fund. New Sub-Accounts may be established when, in
the sole discretion of the Company, marketing needs or investment conditions
warrant. Any new Sub-Accounts will be made available to existing Contract Owners
on a basis to be determined by the Company. The Company may also eliminate one
or more Sub-Accounts if, in its sole discretion, marketing, tax or investment
conditions so warrant.
 
    In the event of any such substitution or change, the Company may, by
appropriate endorsement, make such changes in the Contract as may be necessary
or appropriate to reflect such substitution or change. If deemed to be in the
best interests of persons having voting rights under the policies, the Variable
Account may be operated as a management company under the Investment Company Act
of 1940 or it may be deregistered under such Act in the event such registration
is no longer required.
 
    REINVESTMENT
 
    All dividends and capital gains distributions from the Portfolios are
automatically reinvested in shares of the distributing Portfolio at their net
asset value.
 
                                  THE CONTRACT
 
VALUE OF VARIABLE ACCOUNT ACCUMULATION UNITS
 
    The value of Variable Account Accumulation Units will vary in accordance
with investment experience of the Portfolio in which the Sub-Account invests.
The number of such Accumulation Units credited
 
                                       3
<PAGE>
to a Contract will not, however, change as a result of any fluctuations in the
value of the Accumulation Unit.
 
    The Accumulation Units in each Sub-Account of the Variable Account are
valued separately. The value of Accumulation Units in any Valuation Period will
depend upon the investment performance of the shares purchased by each
Sub-Account in a particular Portfolio.
 
    The value of an Accumulation Unit in a Sub-Account for any Valuation Period
equals the value of such unit as of the immediately preceding Valuation Period,
multiplied by the "Net Investment Factor" for that Sub-Account for the current
Valuation Period. The Net Investment Factor for each Sub-Account for any
Valuation Period is determined by dividing (A) by (B) and subtracting (C),
where:
 
        (A) is the sum of:
 
           (1) the net asset value per share of the Portfolio(s) underlying the
       Sub-Account determined at the end of the current valuation period; plus,
 
           (2) the per share amount of any dividend or capital gain
       distributions made by the Portfolio(s) underlying the Sub-Account during
       the current valuation period.
 
        (B) is the net asset value per share of the Portfolio(s) underlying the
    Sub-Account determined as of the end of the immediately preceding valuation
    period.
 
        (C) is the annualized Mortality and Expense Risk Charges divided by 365
    and then multiplied by the number of calendar days in the current valuation
    period.
 
PERFORMANCE DATA
 
    From time to time the Variable Account may publish advertisements containing
performance data relating to its Sub-Accounts. The performance data for the
Sub-Accounts (other than for the Money Market Sub-Account) will always be
accompanied by total return quotations.
 
    A Sub-Account's "average annual total return" represents an annualization of
the Sub-Account's total return over a particular period and is computed by
finding the annual percentage rate which will result in the ending redeemable
value of a hypothetical $1,000 Purchase Payment made at the beginning of a one,
five or ten year period, or for a period from the date of commencement of the
Sub-Account's operations, if shorter than any of the foregoing. The formula for
computing the average annual total return involves a percentage obtained by
dividing the ending redeemable value, including deductions for any Surrender
Charges or Contract Maintenance Charges imposed on the Contracts by the Variable
Account, by the initial hypothetical $1,000 Purchase Payment, taking the "n"th
root of the quotient (where "n" is the number of years in the period) and
subtracting 1 from the result.
 
    The Surrender Charges assessed on this redemption were computed as follows.
For Contracts that have passed their first Contract Anniversary, the Free
Withdrawal Amount is not assessed a Surrender Charge. Surrender Charges are
charged on the amount of redemption equal to the value of the Purchase Payment,
reduced by the Free Withdrawal Amount, if any. The Surrender Charge schedule
specifies one rate for less than one year and another rate for one year, but
less than two years, and another rate for two years, but less than three years,
and so on until six years or more. For a one year total return calculation the
second rate (i.e., one year, but less than two years) is assessed. The Contract
Maintenance Charge ($30 per contract) used in the total return calculation is
prorated using the following method: The total amount of annual contract fees
collected during the year is divided by the total average net assets of all the
Sub-Accounts. The resulting percentage is then multiplied by the initial
hypothetical $1,000 Purchase Payment.
 
    In addition, the Variable Account may advertise the total return over
different periods of time by means of aggregate, average, year-by-year or other
types of total return figures. Such calculations may or may not reflect the
deductions of some or all of the charges which may be imposed on the Contracts
by the Variable Account which, if reflected, would reduce the performance
quoted. The formula for computing
 
                                       4
<PAGE>
such total return quotations involves a percent unit change calculation. This
calculation is the Accumulation Unit value at the end of the defined period
divided by the Accumulation Unit value at the beginning of such period minus 1.
The periods included in such advertisements may include among others "year-to-
date" (prior calendar year end to the day of the advertisement); "year to most
recent quarter" (prior calendar year end to the end of the most recent quarter);
"the prior calendar year"; and "Inception (commencement of the Sub-Account's
operation) to-date" (day of the advertisement).
 
                           STANDARDIZED TOTAL RETURNS
 
   
    The standardized average annual total returns for the Sub-Accounts for the
one-year, five-year and ten year or since inception periods ending December 31,
1996 are presented below:
    
 
   
<TABLE>
<CAPTION>
                                                                                                    10-YEARS OR
                                                                                                       SINCE
                                                                                                  INCEPTION* (IF
SUB-ACCOUNT                                                              ONE-YEAR     FIVE-YEAR        LESS)
- ----------------------------------------------------------------------  -----------  -----------  ---------------
<S>                                                                     <C>          <C>          <C>
Capital Growth........................................................       5.34%        5.38%          9.02%
Dividend Growth.......................................................      17.02%       13.71%         12.35%
Equity................................................................       6.11%       11.40%         11.93%
European Growth.......................................................      22.69%       19.55%         16.62%
Global Dividend Growth................................................      11.02%         N/A          10.92%
High Yield............................................................       5.75%       11.67%          6.14%
Money Market..........................................................        N/A          N/A            N/A
Pacific Growth........................................................      -1.86%         N/A          -1.50%
Quality Income Plus...................................................      -4.05%        6.28%          7.58%
Strategist............................................................       8.61%        7.79%          8.83%
Utilities.............................................................       2.65%        9.27%         10.21%
</TABLE>
    
 
- ------------------------
 
   
* The Money Market, High Yield and Equity Sub-Accounts commenced operation on
  March 9, 1984. The Quality Income Plus and Strategist Sub-Accounts commenced
  operation on March 1, 1987. The Utilities and Dividend Growth Sub-Accounts
  commenced operation on March 1, 1990. The Capital Growth and European Growth
  Sub-Accounts commenced operation on March 1, 1991. The Global Dividend Growth
  and Pacific Growth Sub-Accounts commenced operation on February 23, 1994. The
  Income Builder and Capital Appreciation Sub-Accounts commenced operation on
  January 21, 1997.
    
 
OTHER TOTAL RETURNS
 
    From time to time, sales literature or advertisements may also quote average
annual total returns that do not reflect the Surrender Charge. These are
calculated in exactly the same way as the average annual total returns described
above, except that the ending redeemable value of the hypothetical account for
the period is replaced with an ending value for the period that does not take
into account any charges on amounts surrendered.
 
                                       5
<PAGE>
    Such average annual total return information for the Sub-Accounts (not
including deduction of the Surrender Charge) is as follows:
 
   
<TABLE>
<CAPTION>
                                                                                                         10-YEARS OR
                                                                                                            SINCE
                                                                                                       INCEPTION* (IF
SUB-ACCOUNT                                                                   ONE-YEAR     FIVE-YEAR        LESS)
- ---------------------------------------------------------------------------  -----------  -----------  ---------------
<S>                                                                          <C>          <C>          <C>
Capital Growth.............................................................      10.43%        5.65%          9.24%
Dividend Growth............................................................      22.72%       13.98%         12.40%
Equity.....................................................................      11.24%       11.67%         11.98%
European Growth............................................................      28.69%       19.84%         16.85%
Global Dividend Growth.....................................................      16.41%         N/A          12.46%
High Yield.................................................................      10.86%       11.94%          6.21%
Money Market...............................................................        N/A          N/A            N/A
Pacific Growth.............................................................       2.85%         N/A          -0.15%
Quality Income Plus........................................................       0.54%        6.54%          7.62%
Strategist.................................................................      13.87%        8.05%          8.88%
Utilities..................................................................       7.59%        9.54%         10.26%
</TABLE>
    
 
- ------------------------
 
   
* The Money Market, High Yield and Equity Sub-Accounts commenced operation on
  March 9, 1984. The Quality Income Plus and Strategist Sub-Accounts commenced
  operation on March 1, 1987. The Utilities and Dividend Growth Sub-Accounts
  commenced operation on March 1, 1990. The Capital Growth and European Growth
  Sub-Accounts commenced operation on March 1, 1991. The Global Dividend Growth
  and Pacific Growth Sub-Accounts commenced operation on February 23, 1994. The
  Income Builder and Capital Appreciation Sub-Accounts commenced operation on
  January 21, 1997.
    
 
    The Variable Account may also advertise the performance of the Sub-Accounts
relative to certain performance rankings and indexes compiled by independent
organizations.
 
TRANSFERS
 
    Currently the Company is not enforcing certain restrictions on transfers
and, therefore, prior to the Income Starting Date amounts may be transferred out
of Sub-Accounts of the Variable Account at any time. The restrictions in the
Contracts, which could be enforced in the future, provide that transfers among
Sub-Accounts of the Variable Account, or from the Variable Account to the Fixed
Account, may not be made for the first 30 days after the Contract is issued and
thereafter such transfers may occur only once every 30 days. The Company
reserves the right to enforce these restrictions in the future. However, the
Company will notify Owners at least 30 days prior to enforcing these
restrictions.
 
TAX-FREE EXCHANGES (SECTION 1035)
 
    The Company accepts Purchase Payments which are the proceeds of a Contract
in a transaction qualifying for a tax-free exchange under Section 1035 of the
Internal Revenue Code. Except as required by federal law in calculating the
basis of the Contract, the Company does not differentiate between Section 1035
Purchase Payments and non-1035 Purchase Payments.
 
    The Company also accepts "rollovers" from Contracts qualifying as
tax-sheltered annuities (TSAs), individual retirement annuities or accounts,
(IRAs), or any other qualified contract which is eligible to "rollover" into an
IRA. The Company differentiates between non-qualified Contracts and TSAs and
IRAs to the extent necessary to comply with federal tax laws. For example, the
Company restricts the assignment, transfer or pledge of TSAs and IRAs so the
Contracts will continue to qualify for special tax treatment.
 
                                       6
<PAGE>
                                GENERAL MATTERS
 
INCONTESTABILITY
 
    The Contract will not be contested after it is issued.
 
SETTLEMENTS
 
    The Contract must be returned to the Company prior to any settlement. Due
proof of any Owner's or Annuitant's (and any Joint Annuitant's) death must be
received prior to settlement of a death claim.
 
SAFEKEEPING OF THE VARIABLE ACCOUNT'S ASSETS
 
    The Company holds title to the assets of the Variable Account. The assets
are kept physically segregated and held separate and apart from the Company's
general corporate assets. Records are maintained of all purchases and
redemptions of the Portfolio shares held by each of the Sub-Accounts.
 
    The Dean Witter Variable Investment Series ("Fund") does not issue
certificates and, therefore, the Company holds the Account's assets in open
account in lieu of stock certificates. See the Fund's Prospectus for a more
complete description of the Fund's custodian.
 
EXPERTS
 
    The financial statements of the Variable Account and the financial
statements and financial statement schedule of the Company appearing in this
Statement of Additional Information (which is incorporated by reference in the
prospectus of Northbrook Variable Annuity Account of Northbrook Life Insurance
Company) have been audited by Deloitte & Touche LLP, Two Prudential Plaza, 180
N. Stetson Avenue, Chicago, Illinois, 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.
 
LEGAL MATTERS
 
    Certain legal matters relating to the federal securities laws applicable to
the issue and sale of the Contracts have been passed upon by Routier and
Johnson, P.C., of Washington, D.C. All matters of Illinois law pertaining to the
Contracts, including the validity of the Contracts and the Company's right to
issue such Contracts under Illinois insurance law, have been passed upon by
Michael J. Velotta, General Counsel of Northbrook Life Insurance Company.
 
                              FEDERAL TAX MATTERS
 
INTRODUCTION
 
    THE FOLLOWING DISCUSSION IS GENERAL AND IS NOT INTENDED AS TAX ADVICE. THE
COMPANY MAKES NO GUARANTEE REGARDING THE TAX TREATMENT OF ANY CONTRACT OR
TRANSACTION INVOLVING A CONTRACT. Federal, state, local and other tax
consequences of ownership or receipt of distributions under an annuity contract
depend on the individual circumstances of each person. If you are concerned
about any tax consequences with regard to your individual circumstances, you
should consult a competent tax adviser.
 
TAXATION OF NORTHBROOK LIFE INSURANCE COMPANY
 
    The Company is taxed as a life insurance company under Part I of Subchapter
L of the Internal Revenue Code. The following discussion assumes that the
Company is taxed as a life insurance company under Part I of Subchapter L. Since
the Variable Account is not an entity separate from the Company, and its
operations form a part of the Company, it will not be taxed separately as a
"regulated Investment Company" under Subchapter M of the Code. Investment income
and realized capital gains are automatically applied to increase reserves under
the contract. Under existing federal income tax law, the Company
 
                                       7
<PAGE>
believes that the Variable Account investment income and realized net capital
gains will not be taxed to the extent that such income and gains are applied to
increase the reserves under the contract.
 
    Accordingly, the Company does not anticipate that it will incur any federal
income tax liability attributable to the Variable Account, and therefore the
Company does not intend to make provisions for any such taxes. However, if
changes in the federal tax laws or interpretations thereof result in the Company
being taxed on income or gains attributable to the Variable Account, then the
Company may impose a charge against the Variable Account (with respect to some
or all contracts) in order to set aside provisions to pay such taxes.
 
EXCEPTIONS TO THE NON-NATURAL OWNER RULE
 
    There are several exceptions to the general rule that contracts held by a
non-natural owner are not treated as annuity contracts for federal income tax
purposes. Contracts will generally be treated as held by a natural person if the
nominal owner is a trust or other entity which holds the contract as agent for a
natural person. However, this special exception will not apply in the case of an
employer who is the nominal owner of an annuity contract under a non-qualified
deferred compensation arrangement for its employees. Other exceptions to the
non-natural owner rule are: (1) contracts acquired by an estate of a decedent by
reason of the death of the decedent; (2) certain qualified contracts; (3)
contracts purchased by employers upon the termination of certain qualified
plans; (4) certain contracts used in connection with structured settlement
agreements, and (5) contracts purchased with a single premium when the annuity
starting date is no later than a year from purchase of the annuity and
substantially equal periodic payments are made, not less frequently than
annually, during the annuity period.
 
PENALTY TAX ON PREMATURE DISTRIBUTIONS
 
    There is a 10% penalty tax on the taxable amount of any payment received
from a non-qualified annuity contract unless: (1) made after the owner reaches
59 1/2; (2) attributable to the owner's disability; (3) attributable to
investment before August 14, 1982, including earnings on pre-August 14, 1982
investment; (4) made from certain qualified contracts; (5) made after the death
of the owner; (6) made under an immediate annuity contract; (7) made from an
annuity purchased and held by an employer upon the termination of a qualified
retirement plan; (8) made under a qualified funding asset; (9) made as part of a
series of substantially equal periodic payments (not less frequently than
annually) for the life of or life expectancy of the owner or the joint lives of
joint life expectancies of the owner and designated beneficiary. Similar rules
apply in the case of qualified contracts.
 
IRS REQUIRED DISTRIBUTION AT DEATH RULES
 
    In order to be considered an annuity contract for federal income tax
purposes, an annuity contract must provide: (1) if any owner dies on or after
the annuity start date but before the entire interest in the contract has been
distributed, the remaining portion of such interest must be distributed at least
as rapidly as under the method of distribution being used as of the date of the
owner's death; (2) if any owner dies prior to the annuity start date, the entire
interest in the contract will be distributed within five years after the date of
the owner's death. These requirements are satisfied if any portion of the
owner's interest which is payable to (or for the benefit of) a designated
beneficiary is distributed over the life of such beneficiary (or over a period
not extending beyond the life expectancy of the beneficiary) and the
distributions begin within one year of the owner's death. If the owner's
designated beneficiary is the surviving spouse of the owner, the contract may be
continued with the surviving spouse as the new owner. If the owner of the
contract is a non-natural person, then the annuitant will be treated as the
owner for purposes of applying the distribution at death rules. In addition, a
change in the annuitant on a contract owned by a non-natural person will be
treated as the death of the owner.
 
                                       8
<PAGE>
QUALIFIED PLANS
 
    This annuity contract may be used with several types of qualified plans. The
tax rules applicable to participants in such qualified plans vary according to
the type of plan and the terms and conditions of the plan itself. Adverse tax
consequences may result from excess contributions, premature distributions,
distributions that do not conform to specified commencement and minimum
distribution rules, excess distributions and in other circumstances. Owners and
participants under the plan and annuitants and beneficiaries under the contract
may be subject to the terms and conditions of the plan regardless of the terms
of the contract.
 
                            TYPES OF QUALIFIED PLANS
 
INDIVIDUAL RETIREMENT ANNUITIES
 
    Section 408 of the Code permits eligible individuals to contribute to an
individual retirement program known as an Individual Retirement Annuity.
Individual Retirement Annuities are subject to limitations on the amount that
can be contributed and on the time when distributions may commence. Certain
distributions from other types of qualified plans may be "rolled over" on a
tax-deferred basis into an Individual Retirement Annuity.
 
SIMPLIFIED EMPLOYEE PENSION PLANS
 
    Section 408(k) of the Code allows employers to establish simplified employee
pension plans for their employees using the employees' individual retirement
annuities if certain criteria are met. Under these plans the employer may,
within specified limits, make deductible contributions on behalf of the
employees to their individual retirement annuities.
 
   
SAVINGS INCENTIVE MATCH PLANS FOR EMPLOYEES (SIMPLE PLANS)
    
 
   
    Sections 408(p) and 401(k) of the Code allow employers with 100 or fewer
employees to establish SIMPLE retirement plans for their employees. SIMPLE plans
may be structured as a SIMPLE retirement account using an employee's IRA to hold
the assets or as a Section 401(k) qualified cash or deferred arrangement. In
general, a SIMPLE plan consists of a salary deferral program for eligible
employees and matching or nonelective contributions made by employers. Employers
intending to use the contract in conjunction with SIMPLE plans should seek
competent tax and legal advice.
    
 
TAX SHELTERED ANNUITIES
 
    Section 403(b) of the Code permits public school employees and employees of
certain types of tax-exempt organizations (specified in Section 501(c)(3) of the
Code) to have their employers purchase annuity contracts for them, and subject
to certain limitations, to exclude the purchase payments from the employees'
gross income. An annuity contract used for a Section 403(b) plan must provide
that distributions attributable to salary reduction contributions made after
12/31/88, and all earnings on salary reduction contributions, may be made only
after the employee attains age 59 1/2, separates from service, dies, becomes
disabled or in the case of hardship (earnings on salary reduction contributions
may not be distributed for hardship).
 
CORPORATE AND SELF-EMPLOYED PENSION AND PROFIT SHARING PLANS
 
    Sections 401(a) and 403(a) of the Code permit corporate employers to
establish various types of tax favored retirement plans for employees. The
Self-Employed Individuals Retirement Act of 1962, as amended, (commonly referred
to as "H.R. 10" or "Keogh") permits self-employed individuals to establish tax
favored retirement plans for themselves and their employees. Such retirement
plans may permit the purchase of annuity contracts in order to provide benefits
under the plans.
 
                                       9
<PAGE>
STATE AND LOCAL GOVERNMENT AND TAX-EXEMPT ORGANIZATION DEFERRED COMPENSATION
  PLANS
 
    Section 457 of the Code permits employees of state and local governments and
tax-exempt organizations to defer a portion of their compensation without paying
current taxes. The employees must be participants in an eligible deferred
compensation plan. Generally, under the non-natural owner rules, such contracts
are not treated as annuity contracts for federal income tax purposes.
 
                                 VOTING RIGHTS
 
    The number of votes which a person has the right to instruct will be
calculated separately for each Sub-Account. That number will be determined by
applying his/her percentage interest, if any, in a particular Sub-Account to the
total number of votes attributable to the Sub-Account.
 
    The number of votes of the Portfolio which an Owner has a right to instruct
will be determined as of the date coincident with the date established by that
Portfolio for determining shareholders eligible to vote at the meeting of the
Fund. Voting instructions will be solicited by written communication prior to
such meeting in accordance with procedures established by the Fund.
 
    Fund shares as to which no timely instructions are received will be voted in
proportion to the voting instructions which are received with respect to all
Contracts participating in that Sub-Account. Voting instructions to abstain on
any item to be voted upon will be applied on a pro rata basis to reduce the
votes eligible to be cast.
 
    Each person having a voting interest in a Sub-Account will receive proxy
material, reports and other materials relating to the appropriate Portfolio.
 
                               SALES COMMISSIONS
 
    The Company pays Dean Witter for its underwriting and general agent's
services a sales commission of up to 5.75% of the Purchase Payments and sales
administration expense allowance of up to 0.125% of the Average Net Assets of
the Fixed Account. These commissions are intended to cover Dean Witter's
expenses in distributing and selling the Contracts.
 
    Under the Underwriting Agreement and Managing General Agent's Agreement
between Dean Witter and the Company, Dean Witter is responsible for paying costs
and expenses associated with licensing its agents, paying agent's commissions,
printing, mailing and distributing the Prospectus to prospective purchasers; and
preparing, printing and distributing sales literature. In the event the
commissions fail to adequately compensate Dean Witter for these expenses, Dean
Witter will pay these expenses from its own funds.
 
                                       10
<PAGE>
INDEPENDENT AUDITORS' REPORT
 
TO THE BOARD OF DIRECTORS AND SHAREHOLDER OF
NORTHBROOK LIFE INSURANCE COMPANY:
 
   
We have audited the accompanying Statements of Financial Position of Northbrook
Life Insurance Company (the "Company") as of December 31, 1996 and 1995, and the
related Statements of Operations, Shareholder's Equity and Cash Flows for each
of the three years in the period ended December 31, 1996. Our audits also
included Schedule IV--Reinsurance. These financial statements and financial
statement schedule are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements and
financial statement schedule 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 Northbrook Life Insurance Company as of
December 31, 1996 and 1995, and the results of its operations and its cash flows
for each of the three years in the period ended December 31, 1996 in conformity
with generally accepted accounting principles. Also, in our opinion, Schedule
IV--Reinsurance, when considered in relation to the basic financial statements
taken as a whole, presents fairly, in all material respects, the information set
forth therein.
 
   
/s/ DELOITTE & TOUCHE LLP
    
 
   
Chicago, Illinois
February 21, 1997
    
 
                                      F-1
<PAGE>
                       NORTHBROOK LIFE INSURANCE COMPANY
                        STATEMENTS OF FINANCIAL POSITION
 
<TABLE>
<CAPTION>
                                                                                               DECEMBER 31,
                                                                                        --------------------------
                                                                                            1996          1995
                                                                                        ------------  ------------
                                                                                             ($ IN THOUSANDS)
<S>                                                                                     <C>           <C>
ASSETS
  Investments
    Fixed income securities, at fair value (amortized cost $65,500 and $59,142).......  $     67,479  $     63,229
    Short-term........................................................................         6,590         8,049
                                                                                        ------------  ------------
        Total investments.............................................................        74,069        71,278
  Reinsurance recoverable from Allstate Life Insurance Company........................     2,480,034     2,636,981
  Cash................................................................................       --                 87
  Net receivable from Allstate Life Insurance Company.................................         4,505         6,183
  Other assets........................................................................         2,639         2,164
  Separate Accounts...................................................................     4,354,783     3,354,910
                                                                                        ------------  ------------
        Total assets..................................................................  $  6,916,030  $  6,071,603
                                                                                        ------------  ------------
                                                                                        ------------  ------------
LIABILITIES
  Reserve for life-contingent contract benefits.......................................  $    143,346  $    139,509
  Contractholder funds................................................................     2,336,296     2,497,278
  Income taxes payable................................................................           814           233
  Deferred income taxes...............................................................         2,085         2,798
  Separate Accounts...................................................................     4,354,783     3,354,910
                                                                                        ------------  ------------
        Total liabilities.............................................................     6,837,324     5,994,728
                                                                                        ------------  ------------
SHAREHOLDER'S EQUITY
  Common stock, $100 par value, 25,000 shares authorized, issued and outstanding......         2,500         2,500
  Additional capital paid-in..........................................................        56,600        56,600
  Unrealized net capital gains........................................................         1,286         2,657
  Retained income.....................................................................        18,320        15,118
                                                                                        ------------  ------------
        Total shareholder's equity....................................................        78,706        76,875
                                                                                        ------------  ------------
        Total liabilities and shareholder's equity....................................  $  6,916,030  $  6,071,603
                                                                                        ------------  ------------
                                                                                        ------------  ------------
</TABLE>
 
                       See notes to financial statements.
 
                                      F-2
<PAGE>
                       NORTHBROOK LIFE INSURANCE COMPANY
                            STATEMENTS OF OPERATIONS
 
<TABLE>
<CAPTION>
                                                                                           YEAR ENDED DECEMBER 31,
                                                                                       -------------------------------
                                                                                         1996       1995       1994
                                                                                       ---------  ---------  ---------
                                                                                              ($ IN THOUSANDS)
<S>                                                                                    <C>        <C>        <C>
REVENUES
  Net investment income..............................................................  $   4,888  $   4,782  $   2,881
  Realized capital gains and losses..................................................        (20)        67       (193)
                                                                                       ---------  ---------  ---------
INCOME BEFORE INCOME TAX EXPENSE.....................................................      4,868      4,849      2,688
INCOME TAX EXPENSE...................................................................      1,666      1,686        955
                                                                                       ---------  ---------  ---------
NET INCOME...........................................................................  $   3,202  $   3,163  $   1,733
                                                                                       ---------  ---------  ---------
                                                                                       ---------  ---------  ---------
</TABLE>
 
                       See notes to financial statements.
 
                                      F-3
<PAGE>
                       NORTHBROOK LIFE INSURANCE COMPANY
                       STATEMENTS OF SHAREHOLDER'S EQUITY
 
<TABLE>
<CAPTION>
                                                                                       YEAR ENDED DECEMBER 31,
                                                                                   -------------------------------
                                                                                     1996       1995       1994
                                                                                   ---------  ---------  ---------
                                                                                          ($ IN THOUSANDS)
<S>                                                                                <C>        <C>        <C>
COMMON STOCK.....................................................................  $   2,500  $   2,500  $   2,500
                                                                                   ---------  ---------  ---------
ADDITIONAL CAPITAL PAID-IN
  Balance, beginning of year.....................................................     56,600     56,600     31,600
    Capital contribution.........................................................     --         --         25,000
                                                                                   ---------  ---------  ---------
  Balance, end of year...........................................................     56,600     56,600     56,600
                                                                                   ---------  ---------  ---------
UNREALIZED NET CAPITAL GAINS
  Balance, beginning of year.....................................................      2,657     (1,553)       747
    Net (decrease) increase......................................................     (1,371)     4,210     (2,300)
                                                                                   ---------  ---------  ---------
  Balance, end of year...........................................................      1,286      2,657     (1,553)
                                                                                   ---------  ---------  ---------
RETAINED INCOME
  Balance, beginning of year.....................................................     15,118     11,955     10,222
    Net income...................................................................      3,202      3,163      1,733
                                                                                   ---------  ---------  ---------
  Balance, end of year...........................................................     18,320     15,118     11,955
                                                                                   ---------  ---------  ---------
        Total shareholder's equity...............................................  $  78,706  $  76,875  $  69,502
                                                                                   ---------  ---------  ---------
                                                                                   ---------  ---------  ---------
</TABLE>
 
                       See notes to financial statements.
 
                                      F-4
<PAGE>
                       NORTHBROOK LIFE INSURANCE COMPANY
                            STATEMENTS OF CASH FLOWS
 
<TABLE>
<CAPTION>
                                                                                     YEAR ENDED DECEMBER 31,
                                                                                ----------------------------------
                                                                                   1996        1995        1994
                                                                                ----------  ----------  ----------
                                                                                         ($ IN THOUSANDS)
<S>                                                                             <C>         <C>         <C>
CASH FLOWS FROM OPERATING ACTIVITIES
  Net income..................................................................  $    3,202  $    3,163  $    1,733
  Adjustments to reconcile net income to net cash provided by (used in)
    operating activities
    Amortization and other non-cash items.....................................         782         903         640
    Realized capital losses (gains)...........................................          20         (67)        193
    (Decrease) increase in life-contingent contract benefits and
      contractholder funds....................................................        (198)        113         (58)
    Change in deferred income taxes...........................................          24         608        (114)
    Changes in other operating assets and liabilities.........................         864      (2,705)     (3,835)
                                                                                ----------  ----------  ----------
        Net cash provided by (used in) operating activities...................       4,694       2,015      (1,441)
                                                                                ----------  ----------  ----------
CASH FLOWS FROM INVESTING ACTIVITIES
  Fixed income securities
    Proceeds from sales.......................................................       3,522       5,423       1,256
    Investment collections....................................................       5,770       7,108       7,626
    Investment purchases......................................................     (15,532)     (9,843)    (36,071)
  Change in short-term investments, net.......................................       1,459      (4,675)      3,475
                                                                                ----------  ----------  ----------
        Net cash used in investing activities.................................      (4,781)     (1,987)    (23,714)
                                                                                ----------  ----------  ----------
CASH FLOWS FROM FINANCING ACTIVITIES
  Capital contribution........................................................      --          --          25,000
                                                                                ----------  ----------  ----------
      Net cash provided by financing activities...............................      --          --          25,000
                                                                                ----------  ----------  ----------
NET (DECREASE) INCREASE IN CASH...............................................         (87)         28        (155)
CASH AT BEGINNING OF YEAR.....................................................          87          59         214
                                                                                ----------  ----------  ----------
CASH AT END OF YEAR...........................................................  $   --      $       87  $       59
                                                                                ----------  ----------  ----------
                                                                                ----------  ----------  ----------
</TABLE>
 
                       See notes to financial statements.
 
                                      F-5
<PAGE>
                       NORTHBROOK LIFE INSURANCE COMPANY
 
                         NOTES TO FINANCIAL STATEMENTS
 
                                ($ IN THOUSANDS)
 
1. GENERAL
 
    BASIS OF PRESENTATION
 
    The accompanying financial statements include the accounts of Northbrook
Life Insurance Company (the "Company"), a wholly owned subsidiary of Allstate
Life Insurance Company ("ALIC"), which is wholly owned by Allstate Insurance
Company ("AIC"), a wholly owned subsidiary of The Allstate Corporation (the
"Corporation"). On June 30, 1995, Sears, Roebuck and Co. ("Sears") distributed
its 80.3% ownership in the Corporation to Sears common shareholders through a
tax-free dividend (the "Distribution"). These financial statements have been
prepared in conformity with generally accepted accounting principles.
 
    To conform with the 1996 presentation, certain items in the prior years'
financial statements and notes have been reclassified.
 
    NATURE OF OPERATIONS
 
    The Company markets life insurance contracts and various annuity products in
the United States through Dean Witter Reynolds Inc. ("Dean Witter") (see Note
4), a wholly owned subsidiary of Dean Witter, Discover & Co. ("Dean Witter
Discover"). Life insurance contracts sold by the Company include universal life
and other interest-sensitive life products. Annuities include deferred
annuities, such as variable annuities and fixed rate single and flexible premium
annuities, and immediate annuities.
 
    Annuity and life insurance contracts issued by the Company are subject to
discretionary withdrawal or surrender by the contractholder, subject to
applicable surrender charges. These contracts are reinsured with ALIC (see Note
3), which invests premiums and deposits to create cash flows that will fund
future benefits and expenses. In order to support competitive credited rates,
ALIC adheres to a basic philosophy of matching assets with related liabilities
to limit interest rate risk, while maintaining adequate liquidity and a prudent
and diversified level of credit risk.
 
    The Company monitors economic and regulatory developments which have the
potential to impact its business. There continues to be proposed federal
legislation and regulation which would allow banks greater participation in
securities and insurance businesses, which could present an increased level of
competition for sales of the Company's annuity contracts. Furthermore, the
market for deferred annuities and interest-sensitive life insurance is enhanced
by the tax incentives available under current law. Any legislative changes which
lessen these incentives are likely to negatively impact the market for these
products.
 
    The Company is authorized to sell life and annuity products in all states
except New York, as well as the District of Columbia and Puerto Rico. The top
geographic locations for statutory premiums earned are California, Florida,
Texas and Pennsylvania for the year ended December 31, 1996. No other
jurisdiction accounted for more than 5% of statutory premiums. All premiums and
contract charges are ceded to ALIC under reinsurance agreements.
 
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
    INVESTMENTS
 
    Fixed income securities include bonds and mortgage-backed securities. All
fixed income securities are carried at fair value and may be sold prior to their
contractual maturity ("available for sale"). The difference between amortized
cost and fair value, net of deferred income taxes, is reflected as a component
of shareholder's equity. Provisions are recognized for declines in the value of
fixed income securities that are other than temporary. Such writedowns are
included in realized capital gains and losses.
 
                                      F-6
<PAGE>
                       NORTHBROOK LIFE INSURANCE COMPANY
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
                                ($ IN THOUSANDS)
 
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
    Short-term investments are carried at cost which approximates fair value.
 
    Investment income consists primarily of interest, which is recognized on an
accrual basis. Interest income on mortgage-backed securities is determined on
the effective yield method, based on the estimated principal repayments. Accrual
of income is suspended for fixed income securities that are in default or when
the receipt of interest payments is in doubt. Realized capital gains and losses
are determined on a specific identification basis.
 
    RECOGNITION OF PREMIUM REVENUES AND CONTRACT CHARGES
 
   
    Revenues on interest-sensitive life insurance contracts are comprised of
contract charges and fees, and are recognized when assessed against the
policyholder account balance. Revenues on annuities, which are considered
investment contracts, include contract charges and fees for contract
administration and surrenders. These revenues are recognized when levied against
the contract balances.
    
 
    REINSURANCE
 
    The Company and ALIC have reinsurance agreements under which all premiums
and deposits are transferred to ALIC. Premiums, contract charges, credited
interest and policy benefits are ceded and reflected net of such cessions in the
statements of operations. The amounts shown in the Company's statements of
operations relate to the investment of those assets of the Company that are not
transferred to ALIC under reinsurance agreements. Reinsurance recoverable and
the related reserve for life-contingent contract benefits and contractholder
funds are reported separately in the statements of financial position. The
Company continues to have primary liability as the direct insurer for risks
reinsured.
 
    INCOME TAXES
 
    The income tax provision is calculated under the liability method. Deferred
tax assets and liabilities are recorded based on the difference between the
financial statement and tax bases of assets and liabilities and the enacted tax
regulations. Deferred income taxes also arise from unrealized capital gains or
losses on fixed income securities carried at fair value.
 
    SEPARATE ACCOUNTS
 
    The Company issues flexible premium deferred variable annuity contracts, the
assets and liabilities of which are legally segregated and reflected in the
accompanying statements of financial position as assets and liabilities of the
Separate Accounts. Assets and liabilities of the Separate Accounts represent
funds of Northbrook Variable Annuity Account and Northbrook Variable Annuity
Account II ("Separate Accounts"), unit investment trusts registered with the
Securities and Exchange Commission.
 
    The assets of the Separate Accounts are carried at fair value. Investment
income and realized capital gains and losses of the Separate Accounts accrue
directly to the contractholders and, therefore, are not included in the
Company's statements of operations. Revenues to the Company from the Separate
Accounts consist of contract maintenance fees, administration fees and mortality
and expense risk charges, which are ceded to ALIC.
 
    RESERVE FOR LIFE-CONTINGENT CONTRACT BENEFITS
 
    The reserve for life-contingent contract benefits, which relates to
structured settlement annuities and supplemental contracts with life
contingencies, is computed on the basis of assumptions as to future investment
yields, mortality, morbidity, terminations and expenses. These assumptions,
which for traditional life are applied using the net level premium method,
include provisions for adverse deviation and
 
                                      F-7
<PAGE>
                       NORTHBROOK LIFE INSURANCE COMPANY
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
                                ($ IN THOUSANDS)
 
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
generally vary by such characteristics as type of coverage, year of issue and
policy duration. Reserve interest rates ranged from 3.96% to 11.00% during 1996.
 
    CONTRACTHOLDER FUNDS
 
    Contractholder funds arise from the issuance of individual or group
contracts that include an investment component, including most annuities and
interest-sensitive life insurance contracts. Payments received are recorded as
interest-bearing liabilities. Contractholder funds are equal to deposits
received and interest credited to the benefit of the contractholder less
withdrawals, mortality charges and administrative expenses. During 1996,
credited interest rates on contractholder funds ranged from 3.10% to 9.51% for
those contracts with fixed interest rates and from 3.25% to 7.86% for those with
flexible rates.
 
    USE OF ESTIMATES
 
    The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the amounts reported in the financial statements and
accompanying notes. Actual results could differ from those estimates.
 
3. RELATED PARTY TRANSACTIONS
 
    REINSURANCE
 
    Premiums and contract charges ceded to ALIC were $3,024 and $60,744 in 1996,
$2,284 and $52,348 in 1995, and $1,886 and $38,306 in 1994. Credited interest,
policy benefits and expenses ceded to ALIC amounted to $207,752, $229,525 and
$243,326 in 1996, 1995 and 1994, respectively. Investment income earned on the
assets which support contractholder funds is not included in the Company's
financial statements as those assets are owned and managed by ALIC under the
terms of reinsurance agreements.
 
    BUSINESS OPERATIONS
 
    The Company utilizes services and business facilities owned or leased, and
operated by AIC in conducting its business activities. The Company reimburses
AIC for the operating expenses incurred by AIC on behalf of the Company. The
cost to the Company is determined by various allocation methods and is primarily
related to the level of services provided. Operating expenses, including
compensation and retirement and other benefit programs allocated to the Company
were $8,074, $5,341 and $5,483 in 1996, 1995 and 1994, respectively. Of these
costs, the Company retains investment related expenses. All other costs are
ceded to ALIC under reinsurance agreements.
 
4. EXCLUSIVE DISTRIBUTION AGREEMENT
 
    The Company and ALIC have formed a strategic alliance with Dean Witter to
develop, market and distribute proprietary annuity and life insurance products
through Dean Witter account executives. Dean Witter provides a portion of the
funding for these products through loans to an affiliate of the Company.
 
    Under the terms of the strategic alliance, which is cancelable by either
party, the Company has agreed to use Dean Witter as an exclusive distribution
channel for the Company's products. Dean Witter Discover's wholly owned
subsidiary, Dean Witter Intercapital Inc., is the investment manager for the
Dean Witter Variable Investment Series, the fund in which the assets of the
Separate Accounts are invested.
 
    On February 5, 1997, Dean Witter Discover and Morgan Stanley Group Inc.
announced that they had entered into an agreement and plan of merger, with the
combined company to be named Morgan Stanley,
 
                                      F-8
<PAGE>
                       NORTHBROOK LIFE INSURANCE COMPANY
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
                                ($ IN THOUSANDS)
 
4. EXCLUSIVE DISTRIBUTION AGREEMENT (CONTINUED)
Dean Witter, Discover & Co. The parties to the merger anticipate that the
transaction will close in mid-1997. The Company does not expect the merger to
have a significant impact on its business.
 
5. INVESTMENTS
 
    FAIR VALUES
 
    The amortized cost, gross unrealized gains and losses and fair value for
fixed income securities are as follows:
<TABLE>
<CAPTION>
                                                                         GROSS UNREALIZED
                                                          AMORTIZED   ----------------------    FAIR
AT DECEMBER 31, 1996                                        COST        GAINS     (LOSSES)      VALUE
- -------------------------------------------------------  -----------  ---------  -----------  ---------
<S>                                                      <C>          <C>        <C>          <C>
U.S. government and agencies...........................   $   8,629   $     193   $     (54)  $   8,768
Municipal..............................................         873          48      --             921
Corporate..............................................      16,902         260         (69)     17,093
Mortgage-backed securities.............................      39,096       1,883        (282)     40,697
                                                         -----------  ---------       -----   ---------
    Total fixed income securities......................   $  65,500   $   2,384   $    (405)  $  67,479
                                                         -----------  ---------       -----   ---------
                                                         -----------  ---------       -----   ---------
 
<CAPTION>
 
                                                                         GROSS UNREALIZED
                                                          AMORTIZED   ----------------------    FAIR
AT DECEMBER 31, 1995                                        COST        GAINS     (LOSSES)      VALUE
- -------------------------------------------------------  -----------  ---------  -----------  ---------
<S>                                                      <C>          <C>        <C>          <C>
U.S. government and agencies...........................   $   8,619   $     880   $  --       $   9,499
Municipal..............................................       1,583          83      --           1,666
Corporate..............................................       4,967         349      --           5,316
Mortgage-backed securities.............................      43,973       3,003        (228)     46,748
                                                         -----------  ---------       -----   ---------
    Total fixed income securities......................   $  59,142   $   4,315   $    (228)  $  63,229
                                                         -----------  ---------       -----   ---------
                                                         -----------  ---------       -----   ---------
</TABLE>
 
    SCHEDULED MATURITIES
 
    The scheduled maturities for fixed income securities are as follows at
December 31, 1996:
 
<TABLE>
<CAPTION>
                                                                              AMORTIZED     FAIR
                                                                                COST        VALUE
                                                                             -----------  ---------
<S>                                                                          <C>          <C>
Due in one year or less....................................................   $      60   $      60
Due after one year through five years......................................       3,416       3,525
Due after five years through ten years.....................................      15,706      15,958
Due after ten years........................................................       7,222       7,239
                                                                             -----------  ---------
                                                                                 26,404      26,782
Mortgage-backed securities.................................................      39,096      40,697
                                                                             -----------  ---------
    Total..................................................................   $  65,500   $  67,479
                                                                             -----------  ---------
                                                                             -----------  ---------
</TABLE>
 
    Actual maturities may differ from those scheduled as a result of prepayments
by the issuers.
 
                                      F-9
<PAGE>
                       NORTHBROOK LIFE INSURANCE COMPANY
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
                                ($ IN THOUSANDS)
 
5. INVESTMENTS (CONTINUED)
    NET INVESTMENT INCOME
 
<TABLE>
<CAPTION>
                                                                           YEAR ENDED DECEMBER 31,
                                                                       -------------------------------
                                                                         1996       1995       1994
                                                                       ---------  ---------  ---------
<S>                                                                    <C>        <C>        <C>
Fixed income securities..............................................  $   4,675  $   4,633  $   2,735
Short-term...........................................................        390        215        192
                                                                       ---------  ---------  ---------
    Investment income, before expense................................      5,065      4,848      2,927
    Investment expense...............................................        177         66         46
                                                                       ---------  ---------  ---------
    Net investment income............................................  $   4,888  $   4,782  $   2,881
                                                                       ---------  ---------  ---------
                                                                       ---------  ---------  ---------
</TABLE>
 
    REALIZED CAPITAL GAINS AND LOSSES
 
<TABLE>
<CAPTION>
                                                                           YEAR ENDED DECEMBER 31,
                                                                       -------------------------------
                                                                         1996       1995       1994
                                                                       ---------  ---------  ---------
<S>                                                                    <C>        <C>        <C>
Fixed income securities..............................................  $     (20) $      67  $    (193)
Income tax benefit (expense).........................................          7        (23)        68
                                                                       ---------  ---------  ---------
Realized capital losses and gains, after tax.........................  $     (13) $      44  $    (125)
                                                                       ---------  ---------  ---------
                                                                       ---------  ---------  ---------
</TABLE>
 
    PROCEEDS FROM SALES OF FIXED INCOME SECURITIES
 
    Proceeds from sales of investments in fixed income securities were $3,522,
$5,423 and $1,256 in 1996, 1995 and 1994, respectively. Gross losses of $32 and
$179 were realized on sales of fixed income securities during 1996 and 1994,
respectively, and gross gains of $67 were recognized during 1995.
 
    UNREALIZED NET CAPITAL GAINS
 
    Unrealized net capital gains on fixed income securities included in
shareholder's equity at December 31, 1996 are as follows:
 
<TABLE>
<CAPTION>
                                                                    COST/
                                                                  AMORTIZED     FAIR     UNREALIZED
                                                                    COST        VALUE     NET GAINS
                                                                 -----------  ---------  -----------
<S>                                                              <C>          <C>        <C>
Fixed income securities........................................   $  65,500   $  67,479   $   1,979
                                                                 -----------  ---------
                                                                 -----------  ---------
Deferred income taxes..........................................                                (693)
                                                                                         -----------
    Unrealized net capital gains...............................                           $   1,286
                                                                                         -----------
                                                                                         -----------
</TABLE>
 
    CHANGE IN UNREALIZED NET CAPITAL GAINS
 
<TABLE>
<CAPTION>
                                                                        YEAR ENDED DECEMBER 31,
                                                                    -------------------------------
                                                                      1996       1995       1994
                                                                    ---------  ---------  ---------
<S>                                                                 <C>        <C>        <C>
Fixed income securities...........................................  $  (2,108) $   6,477  $  (3,539)
Deferred income taxes.............................................        737     (2,267)     1,239
                                                                    ---------  ---------  ---------
    Change in unrealized net capital gains........................  $  (1,371) $   4,210  $  (2,300)
                                                                    ---------  ---------  ---------
                                                                    ---------  ---------  ---------
</TABLE>
 
                                      F-10
<PAGE>
                       NORTHBROOK LIFE INSURANCE COMPANY
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
                                ($ IN THOUSANDS)
 
5. INVESTMENTS (CONTINUED)
    SECURITIES ON DEPOSIT
 
    At December 31, 1996, fixed income securities with a carrying value of
$7,376 were on deposit with regulatory authorities as required by law.
 
6. FINANCIAL INSTRUMENTS
 
    In the normal course of business, the Company invests in various financial
assets and incurs various financial liabilities. The fair value estimates of
financial instruments are not necessarily indicative of the amounts the Company
might pay or receive in actual market transactions. Potential taxes and other
transaction costs have not been considered in estimating fair value. The
disclosures that follow do not reflect the fair value of the Company as a whole
since a number of the Company's assets (including reinsurance recoverable) and
liabilities (including deferred income taxes and reserve for life-contingent
contract benefits) are not considered financial instruments and are not carried
at fair value. Other assets and liabilities considered financial instruments,
including accrued investment income and cash, are generally of a short-term
nature. It is assumed that their carrying value approximates fair value.
 
    FINANCIAL ASSETS
 
<TABLE>
<CAPTION>
                                                              AT DECEMBER 31,
                                           ------------------------------------------------------
                                                      1996                        1995
                                           --------------------------  --------------------------
                                             CARRYING                    CARRYING
                                              VALUE       FAIR VALUE      VALUE       FAIR VALUE
                                           ------------  ------------  ------------  ------------
<S>                                        <C>           <C>           <C>           <C>
Fixed income securities..................  $     67,479  $     67,479  $     63,229  $     63,229
Short-term investments...................         6,590         6,590         8,049         8,049
Separate Accounts........................     4,354,783     4,354,783     3,354,910     3,354,910
</TABLE>
 
    Fair values for fixed income securities are based on quoted market prices.
Short-term investments are highly liquid investments with maturities of less
than one year whose carrying value approximates fair value. Assets of the
Separate Accounts are carried in the statements of financial position at fair
value.
 
    FINANCIAL LIABILITIES
 
<TABLE>
<CAPTION>
                                                              AT DECEMBER 31,
                                           ------------------------------------------------------
                                                      1996                        1995
                                           --------------------------  --------------------------
                                             CARRYING                    CARRYING
                                              VALUE       FAIR VALUE      VALUE       FAIR VALUE
                                           ------------  ------------  ------------  ------------
<S>                                        <C>           <C>           <C>           <C>
Contractholder funds on investment
 contracts...............................  $  2,143,482  $  2,118,583  $  2,294,536  $  2,274,053
Separate Accounts........................     4,354,783     4,354,783     3,354,910     3,354,910
</TABLE>
 
    The fair value of contractholder funds on investment contracts is based on
the terms of the underlying contracts. Reserves on investment contracts with no
stated maturities (single premium and flexible premium deferred annuities) are
valued at the account balance less surrender charges. The fair value of
immediate annuities and annuities without life contingencies with fixed terms is
estimated using discounted cash flow calculations based on interest rates
currently offered for contracts with similar terms and durations. Separate
Account liabilities are carried at the fair value of the underlying assets.
 
                                      F-11
<PAGE>
                       NORTHBROOK LIFE INSURANCE COMPANY
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
                                ($ IN THOUSANDS)
 
7. INCOME TAXES
 
    Consolidated federal income tax returns are filed by the Corporation and its
eligible subsidiaries, including the Company. Tax liabilities and benefits
realized by the consolidated group are allocated as generated by the respective
entities.
 
    Prior to the Distribution, the Corporation and all of its domestic
subsidiaries, including the Company (the "Allstate Group") joined with Sears and
its domestic business units (the "Sears Group") in the filing of a consolidated
federal income tax return (the "Sears Tax Group") and were parties to a federal
income tax allocation agreement (the "Tax Sharing Agreement"). Under the Tax
Sharing Agreement, the Company, through the Corporation, paid to or received
from the Sears Group the amount, if any, by which the Sears Tax Group's federal
income tax liability was affected by virtue of inclusion of the Company in the
consolidated federal income tax return. Effectively, this resulted in the
Company's annual income tax provision being computed as if the Company filed a
separate return, except that items such as net operating losses, capital losses
or similar items, which might not be recognized in a separate return, were
allocated according to the Tax Sharing Agreement.
 
    The Allstate Group and Sears Group have entered into an agreement which
governs their respective rights and obligations with respect to federal income
taxes for all periods prior to the Distribution ("Consolidated Tax Years"). The
agreement provides that all Consolidated Tax Years will continue to be governed
by the Tax Sharing Agreement with respect to the Company's federal income tax
liability.
 
    The components of the net deferred income tax liability at December 31, 1996
and 1995 are as follows:
 
<TABLE>
<CAPTION>
                                                                                 AT DECEMBER 31,
                                                                               --------------------
                                                                                 1996       1995
                                                                               ---------  ---------
<S>                                                                            <C>        <C>
Difference in tax bases of investments.......................................  $  (1,392) $  (1,368)
Unrealized net capital gains on fixed income securities......................       (693)    (1,430)
                                                                               ---------  ---------
    Total deferred liability.................................................  $  (2,085) $  (2,798)
                                                                               ---------  ---------
                                                                               ---------  ---------
</TABLE>
 
    The components of income tax expense are as follows:
 
<TABLE>
<CAPTION>
                                                                           YEAR ENDED DECEMBER 31,
                                                                       -------------------------------
                                                                         1996       1995       1994
                                                                       ---------  ---------  ---------
<S>                                                                    <C>        <C>        <C>
Current..............................................................  $   1,642  $   1,078  $   1,069
Deferred.............................................................         24        608       (114)
                                                                       ---------  ---------  ---------
    Total income tax expense.........................................  $   1,666  $   1,686  $     955
                                                                       ---------  ---------  ---------
                                                                       ---------  ---------  ---------
</TABLE>
 
    The Company paid income taxes of $2,308, $1,555 and $1,393 in 1996, 1995 and
1994, respectively, to ALIC. The Company had income taxes payable to ALIC of
$814 and $233 at December 31, 1996 and 1995, respectively.
 
                                      F-12
<PAGE>
                       NORTHBROOK LIFE INSURANCE COMPANY
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
                                ($ IN THOUSANDS)
 
8. STATUTORY FINANCIAL INFORMATION
 
    The following tables reconcile net income and shareholder's equity as
reported herein in conformity with generally accepted accounting principles with
statutory net income and capital and surplus, determined in accordance with
statutory accounting practices prescribed or permitted by insurance regulatory
authorities:
 
<TABLE>
<CAPTION>
                                                                                 NET INCOME
                                                                       -------------------------------
                                                                           YEAR ENDED DECEMBER 31,
                                                                       -------------------------------
                                                                         1996       1995       1994
                                                                       ---------  ---------  ---------
<S>                                                                    <C>        <C>        <C>
Balance per generally accepted accounting principles.................  $   3,202  $   3,163  $   1,733
    Deferred income taxes............................................         24        608       (114)
    Non-admitted assets and statutory reserves.......................       (661)    (1,471)       (27)
                                                                       ---------  ---------  ---------
Balance per statutory accounting practices...........................  $   2,565  $   2,300  $   1,592
                                                                       ---------  ---------  ---------
                                                                       ---------  ---------  ---------
</TABLE>
 
<TABLE>
<CAPTION>
                                                                              SHAREHOLDER'S EQUITY
                                                                              --------------------
                                                                                AT DECEMBER 31,
                                                                              --------------------
                                                                                1996       1995
                                                                              ---------  ---------
<S>                                                                           <C>        <C>
Balance per generally accepted accounting principles........................  $  78,706  $  76,875
    Deferred income taxes...................................................      2,085      2,798
    Unrealized gain/loss on fixed income securities.........................     (1,979)    (4,087)
    Non-admitted assets and statutory reserves..............................     (2,503)    (2,001)
    Other...................................................................     (1,211)      (520)
                                                                              ---------  ---------
Balance per statutory accounting practices..................................  $  75,098  $  73,065
                                                                              ---------  ---------
                                                                              ---------  ---------
</TABLE>
 
    PERMITTED STATUTORY ACCOUNTING PRACTICES
 
    The Company prepares its statutory financial statements in accordance with
accounting principles and practices prescribed or permitted by the Illinois
Department of Insurance. Prescribed statutory accounting practices include a
variety of publications of the National Association of Insurance Commissioners,
as well as state laws, regulations and general administrative rules. Permitted
statutory accounting practices encompass all accounting practices not so
prescribed. The Company does not follow any permitted statutory accounting
practices that have a material effect on statutory surplus or risk-based
capital.
 
    DIVIDENDS
 
    The ability of the Company to pay dividends is dependent on business
conditions, income, cash requirements of the Company and other relevant factors.
The payment of shareholder dividends by insurance companies without the prior
approval of the state insurance regulator is limited to formula amounts based on
net income and capital and surplus, determined in accordance with statutory
accounting practices, as well as the timing and amount of dividends paid in the
preceding twelve months. The maximum amount of dividends that the Company can
distribute during 1997 without prior approval of both the Illinois and
California Departments of Insurance is $7,260.
 
                                      F-13
<PAGE>
                       NORTHBROOK LIFE INSURANCE COMPANY
 
                            SCHEDULE IV--REINSURANCE
 
                                ($ IN THOUSANDS)
<TABLE>
<CAPTION>
                                 YEAR ENDED DECEMBER 31, 1996
 
<S>                                                             <C>        <C>        <C>
                                                                  GROSS                  NET
                                                                 AMOUNT      CEDED     AMOUNT
                                                                ---------  ---------  ---------
Life insurance in force.......................................  $ 556,242  $ 556,242  $  --
                                                                ---------  ---------  ---------
                                                                ---------  ---------  ---------
Premiums and contract charges:
  Life and annuities..........................................  $  64,519  $  64,519  $  --
                                                                ---------  ---------  ---------
                                                                ---------  ---------  ---------
 
<CAPTION>
 
                                 YEAR ENDED DECEMBER 31, 1995
 
                                                                  GROSS                  NET
                                                                 AMOUNT      CEDED     AMOUNT
                                                                ---------  ---------  ---------
<S>                                                             <C>        <C>        <C>
Life insurance in force.......................................  $ 610,478  $ 610,478  $  --
                                                                ---------  ---------  ---------
                                                                ---------  ---------  ---------
Premiums and contract charges:
  Life and annuities..........................................  $  54,632  $  54,632  $  --
                                                                ---------  ---------  ---------
                                                                ---------  ---------  ---------
<CAPTION>
 
                                 YEAR ENDED DECEMBER 31, 1994
 
                                                                  GROSS                  NET
                                                                 AMOUNT      CEDED     AMOUNT
                                                                ---------  ---------  ---------
<S>                                                             <C>        <C>        <C>
Life insurance in force.......................................  $ 661,356  $ 661,356  $  --
                                                                ---------  ---------  ---------
                                                                ---------  ---------  ---------
Premiums and contract charges:
  Life and annuities..........................................  $  40,192  $  40,192  $  --
                                                                ---------  ---------  ---------
                                                                ---------  ---------  ---------
</TABLE>
 
                                      F-14
<PAGE>
                 (This page has been left blank intentionally.)
 
                                      F-15
<PAGE>
INDEPENDENT AUDITORS' REPORT
 
TO THE BOARD OF DIRECTORS AND SHAREHOLDER OF
NORTHBROOK LIFE INSURANCE COMPANY:
 
We have audited the accompanying Statement of Net Assets of Northbrook Variable
Annuity Account (the "Account") as of December 31, 1996, and the related
Statement of Operations for the year then ended and the Statement of Changes in
Net Assets for each of the two years in the period ended December 31, 1996 of
the Money Market, High Yield, Equity, Quality Income Plus, Strategist, Dividend
Growth, Utilities, European Growth, Capital Growth, Global Dividend Growth and
Pacific Growth portfolios that comprise the Account. These financial statements
are the responsibility of the Account'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. Our procedures included
confirmation of securities owned at December 31, 1996. 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 Account as of December 31, 1996, the
results of its operations for the year then ended, and the changes in its net
assets for each of the two years in the period then ended, of each of the
portfolios comprising the Account, in conformity with generally accepted
accounting principles.
 
   
/s/ DELOITTE & TOUCHE LLP
    
 
   
Chicago, Illinois
February 21, 1997
    
 
                                      F-16
<PAGE>
                      NORTHBROOK VARIABLE ANNUITY ACCOUNT
 
                            STATEMENT OF NET ASSETS
 
                               DECEMBER 31, 1996
 
(Dollars and Shares in Thousands)
 
<TABLE>
<S>                                                                                 <C>
ASSETS
  Investments in the Dean Witter Variable Investment Series:
    Money Market Portfolio--23,228 shares (cost: $23,228).........................  $  23,228
    High Yield Portfolio--3,458 shares (cost: $26,192)............................     21,372
    Equity Portfolio--1,781 shares (cost: $35,557)................................     46,996
    Quality Income Plus Portfolio--2,587 shares (cost: $26,047)...................     26,825
    Strategist Portfolio--3,262 shares (cost: $36,251)............................     44,759
    Dividend Growth Portfolio--3,803 shares (cost: $42,129).......................     69,977
    Utilities Portfolio--1,806 shares (cost: $20,431).............................     27,711
    European Growth Portfolio--628 shares (cost: $9,310)..........................     13,545
    Capital Growth Portfolio--194 shares (cost: $2,484)...........................      3,228
    Global Dividend Growth Portfolio--773 shares (cost: $8,183)...................     10,155
    Pacific Growth Portfolio--523 shares (cost: $5,127)...........................      5,214
                                                                                    ---------
        Total assets..............................................................    293,010
 
LIABILITIES
  Payable to Northbrook Life Insurance Company:
    Accrued contract maintenance charges..........................................        103
                                                                                    ---------
        Net assets................................................................  $ 292,907
                                                                                    ---------
                                                                                    ---------
</TABLE>
 
                       See notes to financial statements.
 
                                      F-17
<PAGE>
                      NORTHBROOK VARIABLE ANNUITY ACCOUNT
 
                            STATEMENT OF OPERATIONS
 
                          YEAR ENDED DECEMBER 31, 1996
 
<TABLE>
<CAPTION>
                                                    DEAN WITTER VARIABLE INVESTMENT SERIES
                                     ---------------------------------------------------------------------
                                                                          QUALITY
                                       MONEY       HIGH                   INCOME                 DIVIDEND
                                      MARKET       YIELD      EQUITY       PLUS      STRATEGIST   GROWTH
(Dollars in Thousands)               PORTFOLIO   PORTFOLIO   PORTFOLIO   PORTFOLIO   PORTFOLIO   PORTFOLIO
                                     ---------   ---------   ---------   ---------   ---------   ---------
<S>                                  <C>         <C>         <C>         <C>         <C>         <C>
INVESTMENT INCOME
  Dividends........................  $  1,123    $  3,344    $  6,122    $  2,335    $  1,377    $  4,008
  Charges from Northbrook Life
    Insurance Company:
    Mortality and expense risk.....      (250)       (234)       (536)       (340)       (505)       (772)
                                     ---------   ---------   ---------   ---------   ---------   ---------
  Net investment income............       873       3,110       5,586       1,995         872       3,236
REALIZED AND UNREALIZED (LOSSES)
  GAINS ON INVESTMENTS
  Realized (losses) gains from
    sales of investments
    Proceeds from sales............    17,704       6,914      22,315      17,824      18,150      27,068
    Cost of investments sold.......   (17,704)     (8,696)    (16,162)    (17,311)    (15,348)    (17,365)
                                     ---------   ---------   ---------   ---------   ---------   ---------
Net realized (losses) gains........     --         (1,782)      6,153         513       2,802       9,703
                                     ---------   ---------   ---------   ---------   ---------   ---------
CHANGE IN UNREALIZED GAINS
  (LOSSES).........................     --            901      (7,155)     (3,205)      1,949       2,544
                                     ---------   ---------   ---------   ---------   ---------   ---------
  Net (losses) gains on
    investments....................     --           (881)     (1,002)     (2,692)      4,751      12,247
                                     ---------   ---------   ---------   ---------   ---------   ---------
CHANGE IN NET ASSETS RESULTING FROM
  OPERATIONS.......................  $    873    $  2,229    $  4,584    $   (697)   $  5,623    $ 15,483
                                     ---------   ---------   ---------   ---------   ---------   ---------
                                     ---------   ---------   ---------   ---------   ---------   ---------
</TABLE>
 
                       See notes to financial statements.
 
                                      F-18
<PAGE>
 
<TABLE>
<CAPTION>
                                                    DEAN WITTER VARIABLE INVESTMENT SERIES
                                     ---------------------------------------------------------------------
                                                                          GLOBAL
                                                 EUROPEAN     CAPITAL    DIVIDEND     PACIFIC
                                     UTILITIES    GROWTH      GROWTH      GROWTH      GROWTH
                                     PORTFOLIO   PORTFOLIO   PORTFOLIO   PORTFOLIO   PORTFOLIO     TOTAL
                                     ---------   ---------   ---------   ---------   ---------   ---------
<S>                                  <C>         <C>         <C>         <C>         <C>         <C>
INVESTMENT INCOME
  Dividends........................  $  1,254    $    832    $     82    $    567    $    190    $  21,234
  Charges from Northbrook Life
    Insurance Company:
    Mortality and expense risk.....      (351)       (130)        (38)       (108)        (69)      (3,333)
                                     ---------   ---------   ---------   ---------   ---------   ---------
  Net investment income............       903         702          44         459         121       17,901
REALIZED AND UNREALIZED (LOSSES)
GAINS ON INVESTMENTS
  Realized (losses) gains from
    sales of investments
    Proceeds from sales............    16,559       4,294       1,797       3,496       4,158      140,279
    Cost of investments sold.......   (12,598)     (3,242)     (1,392)     (2,948)     (4,022)    (116,788)
                                     ---------   ---------   ---------   ---------   ---------   ---------
Net realized (losses) gains........     3,961       1,052         405         548         136       23,491
                                     ---------   ---------   ---------   ---------   ---------   ---------
CHANGE IN UNREALIZED GAINS
(LOSSES)...........................    (2,983)      1,482         (68)        674          10       (5,851)
                                     ---------   ---------   ---------   ---------   ---------   ---------
  Net (losses) gains on
    investments....................       978       2,534         337       1,222         146       17,640
                                     ---------   ---------   ---------   ---------   ---------   ---------
CHANGE IN NET ASSETS RESULTING FROM
OPERATIONS.........................  $  1,881    $  3,236    $    381    $  1,681    $    267    $  35,541
                                     ---------   ---------   ---------   ---------   ---------   ---------
                                     ---------   ---------   ---------   ---------   ---------   ---------
</TABLE>
 
   
                       See notes to financial statements.
    
 
                                      F-19
<PAGE>
                      NORTHBROOK VARIABLE ANNUITY ACCOUNT
 
                       STATEMENT OF CHANGES IN NET ASSETS
 
                          YEAR ENDED DECEMBER 31, 1996
 
   
<TABLE>
<CAPTION>
                                                                       DEAN WITTER VARIABLE INVESTMENT SERIES
                                                    ----------------------------------------------------------------------------
                                                                                             QUALITY
                                                       MONEY        HIGH                     INCOME                   DIVIDEND
(Dollars and Units in Thousands, Except Value per     MARKET        YIELD       EQUITY        PLUS      STRATEGIST     GROWTH
Unit)                                                PORTFOLIO    PORTFOLIO    PORTFOLIO    PORTFOLIO    PORTFOLIO    PORTFOLIO
                                                    -----------  -----------  -----------  -----------  -----------  -----------
<S>                                                 <C>          <C>          <C>          <C>          <C>          <C>
FROM OPERATIONS
  Net investment income...........................   $     873    $   3,110    $   5,586    $   1,995    $     872    $   3,236
  Net realized (losses) gains.....................      --           (1,782)       6,153          513        2,802        9,703
  Net change in unrealized gains (losses).........      --              901       (7,155)      (3,205)       1,949        2,544
                                                    -----------  -----------  -----------  -----------  -----------  -----------
    Change in net assets resulting from
      operations..................................         873        2,229        4,584         (697)       5,623       15,483
FROM CAPITAL TRANSACTIONS
  Deposits........................................         219          244          330           84          148          700
  Benefit payments................................        (359)        (426)        (242)        (599)      (1,172)        (344)
  Payments on termination.........................      (9,613)      (5,277)     (14,899)     (13,628)     (14,157)     (26,968)
  Contract maintenance charges....................         (14)         (18)         (29)         (12)         (32)         (47)
  Transfers among the portfolios and with the
    Fixed Account--net............................       5,038          101          (72)      (2,586)        (612)       1,315
                                                    -----------  -----------  -----------  -----------  -----------  -----------
    Change in net assets resulting from capital
      transactions................................      (4,729)      (5,376)     (14,912)     (16,741)     (15,825)     (25,344)
                                                    -----------  -----------  -----------  -----------  -----------  -----------
(DECREASE) INCREASE IN NET ASSETS.................      (3,856)      (3,147)     (10,328)     (17,438)     (10,202)      (9,861)
Net assets at beginning of period.................      27,075       24,512       57,307       44,254       54,945       79,814
                                                    -----------  -----------  -----------  -----------  -----------  -----------
Net assets at end of period.......................   $  23,219    $  21,365    $  46,979    $  26,816    $  44,743    $  69,953
                                                    -----------  -----------  -----------  -----------  -----------  -----------
                                                    -----------  -----------  -----------  -----------  -----------  -----------
Net asset value per unit at end of period.........   $   18.95    $   29.99    $   48.48    $   20.61    $   23.10    $   22.25
                                                    -----------  -----------  -----------  -----------  -----------  -----------
                                                    -----------  -----------  -----------  -----------  -----------  -----------
Units outstanding at end of period................       1,225          712          969        1,301        1,937        3,144
                                                    -----------  -----------  -----------  -----------  -----------  -----------
                                                    -----------  -----------  -----------  -----------  -----------  -----------
</TABLE>
    
 
                       See notes to financial statements.
 
                                      F-20
<PAGE>
 
   
<TABLE>
<CAPTION>
                                                            DEAN WITTER VARIABLE INVESTMENT SERIES
                                          --------------------------------------------------------------------------
                                                                                   GLOBAL
                                                        EUROPEAN      CAPITAL     DIVIDEND      PACIFIC
(Dollars and Units in Thousands, Except    UTILITIES     GROWTH       GROWTH       GROWTH       GROWTH
Value per Unit)                            PORTFOLIO    PORTFOLIO    PORTFOLIO    PORTFOLIO    PORTFOLIO     TOTAL
                                          -----------  -----------  -----------  -----------  -----------  ---------
<S>                                       <C>          <C>          <C>          <C>          <C>          <C>
FROM OPERATIONS
  Net investment income.................   $     903    $     702    $      44    $     459    $     121   $  17,901
  Net realized (losses) gains...........       3,961        1,052          405          548          136      23,491
  Net change in unrealized gains
    (losses)............................      (2,983)       1,482          (68)         674           10      (5,851)
                                          -----------  -----------  -----------  -----------  -----------  ---------
    Change in net assets resulting from
      operations........................       1,881        3,236          381        1,681          267      35,541
FROM CAPITAL TRANSACTIONS
  Deposits..............................          40          307           55          267          124       2,518
  Benefit payments......................        (264)         (47)      --              (50)         (26)     (3,529)
  Payments on termination...............     (11,314)      (3,682)      (1,175)      (2,940)      (2,548)   (106,201)
  Contract maintenance charges..........         (17)          (7)          (2)          (5)          (3)       (186)
  Transfers among the portfolios and
    with the Fixed Account--net.........      (4,294)       1,188           74          950        1,508       2,610
                                          -----------  -----------  -----------  -----------  -----------  ---------
    Change in net assets resulting from
      capital transactions..............     (15,849)      (2,241)      (1,048)      (1,778)        (945)   (104,788)
                                          -----------  -----------  -----------  -----------  -----------  ---------
(DECREASE) INCREASE IN NET ASSETS.......     (13,968)         995         (667)         (97)        (678)    (69,247)
Net assets at beginning of period.......      41,668       12,547        3,893       10,249        5,890     362,154
                                          -----------  -----------  -----------  -----------  -----------  ---------
Net assets at end of period.............   $  27,700    $  13,542    $   3,226    $  10,152    $   5,212   $ 292,907
                                          -----------  -----------  -----------  -----------  -----------  ---------
                                          -----------  -----------  -----------  -----------  -----------  ---------
Net asset value per unit at end of
period..................................   $   19.51    $   24.84    $   16.76    $   13.98    $    9.96
                                          -----------  -----------  -----------  -----------  -----------
                                          -----------  -----------  -----------  -----------  -----------
Units outstanding at end of period......       1,420          545          193          726          523
                                          -----------  -----------  -----------  -----------  -----------
                                          -----------  -----------  -----------  -----------  -----------
</TABLE>
    
 
   
                       See notes to financial statements.
    
 
                                      F-21
<PAGE>
                      NORTHBROOK VARIABLE ANNUITY ACCOUNT
 
                       STATEMENT OF CHANGES IN NET ASSETS
 
                          YEAR ENDED DECEMBER 31, 1995
 
   
<TABLE>
<CAPTION>
                                                    DEAN WITTER VARIABLE INVESTMENT SERIES
                                     ---------------------------------------------------------------------
                                                                          QUALITY
                                       MONEY       HIGH                   INCOME                 DIVIDEND
(Dollars and Units in Thousands,      MARKET       YIELD      EQUITY       PLUS      STRATEGIST   GROWTH
Except Value per Unit)               PORTFOLIO   PORTFOLIO   PORTFOLIO   PORTFOLIO   PORTFOLIO   PORTFOLIO
                                     ---------   ---------   ---------   ---------   ---------   ---------
<S>                                  <C>         <C>         <C>         <C>         <C>         <C>
FROM OPERATIONS
  Net investment income............  $  1,547    $  2,871    $     63    $  2,488    $  5,204    $  2,902
  Net realized (losses) gains......     --         (2,747)      3,990         442       2,986       3,912
  Net change in unrealized gains
    (losses).......................     --          3,290      14,353       6,444      (3,230)     16,029
                                     ---------   ---------   ---------   ---------   ---------   ---------
    Change in net assets resulting
      from operations..............     1,547       3,414      18,406       9,374       4,960      22,843
FROM CAPITAL TRANSACTIONS
  Deposits.........................       250         207         307         317         160         768
  Benefit payments.................      (398)       (749)       (485)       (698)       (698)       (648)
  Payments on termination..........   (12,791)     (6,897)    (13,097)    (12,503)    (20,203)    (15,665)
  Contract maintenance charges.....       (19)        (24)        (44)        (27)        (47)        (62)
  Transfers among the portfolios
    and with the Fixed
    Account--net...................    (3,451)         (1)      1,172       1,526      (4,038)      2,374
                                     ---------   ---------   ---------   ---------   ---------   ---------
    Change in net assets resulting
      from capital transactions....   (16,409)     (7,464)    (12,147)    (11,385)    (24,826)    (13,233)
                                     ---------   ---------   ---------   ---------   ---------   ---------
(DECREASE) INCREASE IN NET
  ASSETS...........................   (14,862)     (4,050)      6,259      (2,011)    (19,866)      9,610
Net assets at beginning of
  period...........................    41,937      28,562      51,048      46,265      74,811      70,204
                                     ---------   ---------   ---------   ---------   ---------   ---------
Net assets at end of period........  $ 27,075    $ 24,512    $ 57,307    $ 44,254    $ 54,945    $ 79,814
                                     ---------   ---------   ---------   ---------   ---------   ---------
                                     ---------   ---------   ---------   ---------   ---------   ---------
Net asset value per unit at end of
  period...........................  $  18.22    $  27.06    $  43.59    $  20.50    $  20.28    $  18.13
                                     ---------   ---------   ---------   ---------   ---------   ---------
                                     ---------   ---------   ---------   ---------   ---------   ---------
Units outstanding at end of
  period...........................     1,486         906       1,315       2,159       2,708       4,403
                                     ---------   ---------   ---------   ---------   ---------   ---------
                                     ---------   ---------   ---------   ---------   ---------   ---------
</TABLE>
    
 
                       See notes to financial statements.
 
                                      F-22
<PAGE>
 
   
<TABLE>
<CAPTION>
                                                    DEAN WITTER VARIABLE INVESTMENT SERIES
                                     ---------------------------------------------------------------------
                                                                          GLOBAL
                                                 EUROPEAN     CAPITAL    DIVIDEND     PACIFIC
(Dollars and Units in Thousands,     UTILITIES    GROWTH      GROWTH      GROWTH      GROWTH
Except Value per Unit)               PORTFOLIO   PORTFOLIO   PORTFOLIO   PORTFOLIO   PORTFOLIO     TOTAL
                                     ---------   ---------   ---------   ---------   ---------   ---------
<S>                                  <C>         <C>         <C>         <C>         <C>         <C>
FROM OPERATIONS
  Net investment income............  $  1,370    $    455    $    (15)   $    150    $     (6)   $  17,029
  Net realized (losses) gains......     1,970         965         233         148        (156)      11,743
  Net change in unrealized gains
    (losses).......................     6,470       1,459         826       1,500         349       47,490
                                     ---------   ---------   ---------   ---------   ---------   ---------
    Change in net assets resulting
      from operations..............     9,810       2,879       1,044       1,798         187       76,262
FROM CAPITAL TRANSACTIONS
  Deposits.........................       228         142          58         240         122        2,799
  Benefit payments.................      (418)        (51)        (23)      --          --          (4,168)
  Payments on termination..........    (8,812)     (3,042)     (1,292)     (2,452)     (1,581)     (98,335)
  Contract maintenance charges.....       (30)         (8)         (3)         (7)         (4)        (275)
  Transfers among the portfolios
    and with the Fixed
    Account--net...................       820        (823)        403       1,207       1,206          395
                                     ---------   ---------   ---------   ---------   ---------   ---------
    Change in net assets resulting
      from capital transactions....    (8,212)     (3,782)       (857)     (1,012)       (257)     (99,584)
                                     ---------   ---------   ---------   ---------   ---------   ---------
(DECREASE) INCREASE IN NET
ASSETS.............................     1,598        (903)        187         786         (70)     (23,322)
Net assets at beginning of
period.............................    40,070      13,450       3,706       9,463       5,960      385,476
                                     ---------   ---------   ---------   ---------   ---------   ---------
Net assets at end of period........  $ 41,668    $ 12,547    $  3,893    $ 10,249    $  5,890    $ 362,154
                                     ---------   ---------   ---------   ---------   ---------   ---------
                                     ---------   ---------   ---------   ---------   ---------   ---------
Net asset value per unit at end of
period.............................  $  18.13    $  19.30    $  15.18    $  12.01    $   9.68
                                     ---------   ---------   ---------   ---------   ---------
                                     ---------   ---------   ---------   ---------   ---------
Units outstanding at end of
period.............................     2,298         650         256         853         608
                                     ---------   ---------   ---------   ---------   ---------
                                     ---------   ---------   ---------   ---------   ---------
</TABLE>
    
 
   
                       See notes to financial statements.
    
 
                                      F-23
<PAGE>
                      NORTHBROOK VARIABLE ANNUITY ACCOUNT
 
                         NOTES TO FINANCIAL STATEMENTS
 
                          YEAR ENDED DECEMBER 31, 1996
 
1. ORGANIZATION
 
    Northbrook Variable Annuity Account (the "Account"), a unit investment trust
registered with the Securities and Exchange Commission under the Investment
Company Act of 1940, is a Separate Account of Northbrook Life Insurance Company
("Northbrook Life"). The assets of the Account are legally segregated from those
of Northbrook Life. Northbrook Life is wholly owned by Allstate Life Insurance
Company ("Allstate Life"), a wholly owned subsidiary of Allstate Insurance
Company ("Allstate"), which is wholly owned by The Allstate Corporation (the
"Corporation").
 
    Northbrook Life writes certain annuity contracts, the proceeds of which are
invested at the direction of the contractholder. Contractholders primarily
invest in units of the portfolios comprising the Account, for which they bear
all of the investment risk, but may also invest in the general account of
Northbrook Life ("Fixed Account"). The Account, in turn, invests solely in
shares of the portfolios of the Dean Witter Variable Investment Series ("Fund").
The Account accepts additional deposits from existing contractholders, but is
closed to new customers. Northbrook Life provides administrative and insurance
services to the Account for a fee.
 
   
    Dean Witter Reynolds, Inc. ("Dean Witter"), a wholly owned subsidiary of
Dean Witter, Discover and Co., is the sole distributor of Northbrook Life's
flexible premium deferred variable annuity contracts and certain single and
flexible premium annuities. Dean Witter InterCapital, Inc. ("InterCapital"), a
wholly owned subsidiary of Dean Witter, Discover and Co., is the investment
manager for the Fund. In October 1993, Allstate Life and Northbrook Life
announced a strategic alliance to develop, market and distribute proprietary
annuity and life insurance products through Dean Witter account executives.
InterCapital receives investment management fees from the Fund.
    
 
    Effective September 1, 1995, the name of the Managed Assets Portfolio of the
Fund changed to the Strategist Portfolio. While certain of the investment
policies of the portfolio have changed, the overall investment strategy has
remained the same.
 
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
    VALUATION OF INVESTMENTS
 
    Investments consist of shares in the portfolios of the Fund, and are stated
at fair value based on quoted market prices.
 
    RECOGNITION OF INVESTMENT INCOME
 
    Investment income consists of dividends declared by the portfolios of the
Fund, and is recognized on the date of record.
 
    REALIZED GAINS AND LOSSES
 
    Realized gains and losses represent the difference between the proceeds from
sales of shares by the Account and the cost of such shares, which is determined
on a weighted average basis.
 
    CONTRACTHOLDER ACCOUNT ACTIVITY
 
    Account activity is reflected in individual contractholder accounts on a
daily basis.
 
    FEDERAL INCOME TAXES
 
    Net Investment income and realized gains and losses on investments of the
Account are taxable to contractholders generally upon distribution. Accordingly,
no provision for income taxes has been recorded.
 
                                      F-24
<PAGE>
                      NORTHBROOK VARIABLE ANNUITY ACCOUNT
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
                          YEAR ENDED DECEMBER 31, 1996
 
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
    ACCOUNT VALUES
 
    Certain calculations that could be made in the financial statements may
differ from published amounts due to truncation of actual Account values.
 
3. CONTRACT MAINTENANCE AND MORTALITY AND EXPENSE RISK CHARGES
 
    For each year or portion of a year a contract is in effect, Northbrook Life
deducts a fixed annual contract maintenance charge of $30 as reimbursement for
expenses related to the maintenance of each contract and the Account. The amount
of this charge is guaranteed not to increase over the life of the contract.
 
    Northbrook Life assumes mortality and expense risks related to the
operations of the Account and deducts charges daily at a rate, on an annual
basis, equal to 1.0% of the daily net assets of the Account. Northbrook Life
guarantees that the amount of this charge will not increase over the life of the
contract.
 
4. FINANCIAL INSTRUMENTS
 
    The investments of the Separate Accounts are carried at fair value, based
upon quoted market prices. Accrued contract maintenance charges are of a short
term nature. It is assumed that their carrying value approximates fair value.
 
                                      F-25
<PAGE>
                      NORTHBROOK VARIABLE ANNUITY ACCOUNT
 
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
                          YEAR ENDED DECEMBER 31, 1996
 
   
5. UNITS ISSUED AND REDEEMED
    
 
    Units issued and redeemed by the Account during 1996 were as follows:
 
<TABLE>
<CAPTION>
                                                                       DEAN WITTER VARIABLE INVESTMENT SERIES
                                                           ---------------------------------------------------------------
                                                              MONEY                                 QUALITY
                                                             MARKET     HIGH YIELD     EQUITY     INCOME PLUS  STRATEGIST
(Units in thousands)                                        PORTFOLIO    PORTFOLIO    PORTFOLIO    PORTFOLIO    PORTFOLIO
                                                           -----------  -----------  -----------  -----------  -----------
<S>                                                        <C>          <C>          <C>          <C>          <C>
UNITS OUTSTANDING AT BEGINNING OF PERIOD.................       1,486          906        1,315        2,159        2,708
Unit activity during 1996:
  Issued.................................................         850           78          194           37           84
  Redeemed...............................................      (1,111)        (272)        (540)        (895)        (855)
                                                           -----------         ---        -----        -----        -----
UNITS OUTSTANDING AT END OF PERIOD.......................       1,225          712          969        1,301        1,937
                                                           -----------         ---        -----        -----        -----
                                                           -----------         ---        -----        -----        -----
</TABLE>
 
UNITS REDEEMED INCLUDES UNITS DEDUCTED FOR ACCRUED CONTRACT MAINTENANCE CHARGES.
 
                                      F-26
<PAGE>
   
5. UNITS ISSUED AND REDEEMED (CONTINUED)
    
 
<TABLE>
<CAPTION>
                                                                       DEAN WITTER VARIABLE INVESTMENT SERIES
                                                    ----------------------------------------------------------------------------
                                                                                                          GLOBAL
                                                     DIVIDEND                  EUROPEAN      CAPITAL     DIVIDEND      PACIFIC
                                                      GROWTH      UTILITIES     GROWTH       GROWTH       GROWTH       GROWTH
(Units in thousands)                                 PORTFOLIO    PORTFOLIO    PORTFOLIO    PORTFOLIO    PORTFOLIO    PORTFOLIO
                                                    -----------  -----------  -----------  -----------  -----------  -----------
<S>                                                 <C>          <C>          <C>          <C>          <C>          <C>
UNITS OUTSTANDING AT BEGINNING OF PERIOD..........       4,403        2,298          650          256          853          608
Unit activity during 1996:
  Issued..........................................         282           38          136           49          179          344
  Redeemed........................................      (1,541)        (916)        (241)        (112)        (306)        (429)
                                                    -----------       -----          ---          ---          ---          ---
UNITS OUTSTANDING AT END OF PERIOD................       3,144        1,420          545          193          726          523
                                                    -----------       -----          ---          ---          ---          ---
                                                    -----------       -----          ---          ---          ---          ---
</TABLE>
 
   
UNITS REDEEMED INCLUDES UNITS DEDUCTED FOR ACCRUED CONTRACT MAINTENANCE CHARGES.
    
 
                                      F-27
<PAGE>
                                     PART C
                               OTHER INFORMATION
 
24A. FINANCIAL STATEMENTS
   
    PART B: Northbrook Life Insurance Company Financial Schedules
            Northbrook Variable Annuity Account
    
24B. EXHIBITS
 
    The following exhibits, correspond to those required by paragraph (b) of 
item 24 as to exhibits in Form N-4:

   
<TABLE>
<S>        <C>
 (1)       Form of Resolution of the Board of Directors of Northbrook Life Insurance Company authorizing
           establishment of the Variable Annuity Account*
 (2)       Not Applicable
 (3)(a)    Underwriting Agreement**
    (b)    Form of General Agency Agreement**
 (4)       Specimen Contract***
 (5)       Form of application for a Contract***
 (6)(a)    Articles of Incorporation of Northbrook Life Insurance Company**
    (b)    By-laws of Northbrook Life Insurance Company**
 (7)       Not applicable
 (8)       Participation Agreement****
 (9)       Opinion of Robert S. Seiler, Senior Vice President, Secretary and General Counsel of
           Northbrook Life Insurance Company***
(10)(a)    Consent of Accountants
    (b)    Consent of Attorneys**
(11)       Not applicable
(12)       Form of Agreement to Purchase Shares**
(13)       Performance Data Calculations
(14)       Financial Data Schedule*****
(99)       Powers of Attorney*
</TABLE>

 
- ------------------------
   *  Previously filed in Form N-4 Registration Statement No. 2-82511 dated
      December 31, 1996.

  **  Previously filed in Form N-4 Registration Statement No. 33-35412 dated 
      December 31, 1996 and incorporated by reference.

 ***  Previously filed in Form N-4 Registration Statement No. 2-82511, dated 
      June 15, 1990 and incorporated by reference.

****  Previously filed in Form N-4 Registration Statement No. 2-82511 dated 
      May 1, 1996 and incorporated by reference.

***** Previously filed in Depositor's Form 10-K filed March 31, 1997.
    
<PAGE>
25.  DIRECTORS AND OFFICERS OF THE DEPOSITOR

<TABLE>
<CAPTION>
NAME AND PRINCIPAL BUSINESS
          ADDRESS                     POSITION AND OFFICE WITH DEPOSITOR OF THE TRUST
- ---------------------------  ------------------------------------------------------------------
<S>                          <C>
Louis G. Lower, II           Chairman of the Board of Directors and Chief Executive Officer
Michael J. Velotta           Director, Vice President, Secretary and General Counsel
Peter H. Heckman             Director, President and Chief Operating Officer
Marla G. Friedman            Vice President
John R. Hunter               Director and Assistant Vice President
Kevin R. Slawin              Director and Vice President
Casey J. Sylla               Director and Chief Investment Officer
James P. Zils                Treasurer
Keith Hauschildt             Assistant Vice President and Controller
Sarah R. Donahue             Assistant Vice President
Ronald Johnson               Assistant Vice President
Barry S. Paul                Assistant Vice President
Emma M. Kalaidjian           Assistant Secretary
Paul N. Kierig               Assistant Secretary
Mary J. McGinn               Assistant Secretary
Robert N. Roeters            Assistant Vice President
Theodore A. Schnell          Assistant Vice President, Assistant Secretary and Assistant
                              Treasurer
Brenda D. Sneed              Assistant Secretary and Assistant General Counsel
C. Nelson Strom              Assistant Vice President and Corporate Actuary
Charles F. Thalheimer        Assistant Vice President
Steven E. Shebik             Assistant Treasurer
</TABLE>
 
    The  principal business address  of the foregoing  officers and directors is
3100 Sanders Road, Northbrook, Illinois 60062.
 
26.  PERSONS CONTROLLED BY OR UNDER COMMON CONTROL WITH DEPOSITOR OR REGISTRANT
 
    See 10-K Commission File #1-11840, The Allstate Corporation.
 
27.  NUMBER OF CONTRACT OWNERS
 
   
    As of February 28, 1996 there  were  in  force 596  qualified  and  5,735
non-qualified contracts. The Registrant began operations on February 14, 1983.
    
 
28.  INDEMNIFICATION
   
    The General Agency Agreement (Exhibit  3(b)) has  a provision in
which Northbrook Life agrees  to indemnify Dean  Witter Reynolds as  Underwriter
for  certain damages and expenses  that may be caused  by actions, statements or
omissions by  Northbrook  Life. The  Agreement  to Purchase  Shares  contains  a
similar provision in paragraph 16 of Exhibit 12.
    
    Insofar  as indemnification for liability arising  out of 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  indemnification is against public  policy as expressed in  the Act and is,
therefore,  unenforceable.  In  the  event  that  a  claim  for  indemnification
<PAGE>
against  such  liabilities (other  than payment  by  the registrant  of expenses
incurred by a director, officer or  controlling person of the registrant in  the
successful  defense  of  any  action,  suit,  or  proceeding)  is  asserted 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.
 
29A.  RELATIONSHIP OF PRINCIPAL UNDERWRITER TO OTHER INVESTMENT COMPANIES
 
    Dean Witter Distributors Inc. is the principal underwriter for the following
investment companies:

Dean Witter Liquid Asset Fund Inc.

Dean Witter Tax-Free Daily Income Trust

Dean Witter California Tax-Free Daily Income Trust

Dean Witter Retirement Series

Dean Witter Dividend Growth Securities Inc.

Dean Witter Natural Resource Development
 Securities Inc.

Dean Witter World Wide Investment Trust

Dean Witter Capital Growth Securities

Dean Witter Convertible Securities Trust

Dean Witter Federal Securities Trust

Active Assets Tax-Free Trust

Active Assets Money Trust

Active Assets California Tax-Free Trust

Active Assets Government Securities Trust

Dean Witter Short-Term Bond Fund

Dean Witter Mid-Cap Growth Fund

Dean Witter U.S. Government Securities Trust

Dean Witter High Yield Securities Inc.

Dean Witter New York Tax-Free Income Fund

Dean Witter Tax-Exempt Securities Trust

Dean Witter California Tax-Free Income Fund

Dean Witter Limited Term Municipal Trust

Dean Witter World Wide Income Trust

Dean Witter Utilities Fund

Dean Witter Strategist Fund

Dean Witter New York Municipal Money Market
 Trust

Dean Witter Intermediate Income Securities
  Prime Income Trust

Dean Witter European Growth Fund Inc.

Dean Witter Developing Growth Securities Trust

Dean Witter Precious Metal and Minerals Trust

Dean Witter Pacific Growth Fund Inc.

Dean Witter Multi-State Municipal Series Trust

Dean Witter Federal Securities Trust

Dean Witter Short-Term U.S. Treasury Trust

Dean Witter Diversified Income Trust

Dean Witter Health Sciences Trust

Dean Witter Global Dividend Growth Securities

Dean Witter American Value Fund

Dean Witter U.S. Government Money Market
  Trust

Dean Witter Short-Term Income Fund Inc.

Dean Witter Premier Income Trust

Dean Witter Value-Added Market Series

Dean Witter Global Utilities Fund

Dean Witter High Income Securities

Dean Witter National Municipal Trust

Dean Witter International SmallCap Fund

Dean Witter Global Asset Allocation

Dean Witter Balanced Income Fund

Dean Witter Balanced Growth Fund

Dean Witter Hawaii Municipal Trust

Dean Witter Capital Appreciation Fund

Dean Witter Intermediate Term U.S. Treasury
  Trust

Dean Witter Information Fund

Dean Witter Japan Fund

Dean Witter Income Builder Fund

Dean Witter Special Value Fund

TCW/DW Core Equity Trust

TCW/DW North American Government Income
 Trust

TCW/DW Latin American Growth Fund

TCW/DW Income and Growth Fund

TCW/DW Small Cap Growth Fund

TCW/DW Balanced Fund

TCW/DW Mid-Cap Equity Trust

TCW/DW Total Return Trust

TCW/DW Global Telecom Trust

TCW/DW Stategic Income Trust

<PAGE>
29B.  PRINCIPAL UNDERWRITER
 
   
<TABLE>
<CAPTION>
NAME AND PRINCIPAL BUSINESS
ADDRESS OF EACH SUCH PERSON                             POSITIONS AND OFFICES WITH UNDERWRITER
- ----------------------------  ------------------------------------------------------------------------------------------
<S>                           <C>
Dean  Witter  Reynolds  Inc.  Underwriter
("Dean Witter")
Philip J. Purcell             Chairman, Chief Executive Officer and Director
Richard M. DeMartini          President and Chief Operating Officer, and Director, Dean Witter Capital 
James F. Higgins              President and Chief Operating Officer, and Director, Dean Witter Financial 
Stephen R. Miller             Senior Executive Vice President and Director
Raymond J. Drop               Executive Vice President
Robert J. Dwyer               Executive Vice President, National Sales Director and Director
Christine A. Edwards          Executive Vice President, Secretary, General Counsel and Director
Charles A. Fiumefreddo        Executive Vice President and Director
Frederick J. Frohne           Executive Vice President
Alfred J. Golden              Executive Vice President
E. Davisson Hardman, Jr.      Executive Vice President
Mitchell M. Merin             Executive Vice President, Chief Administrative Officer and Director
Laurence E. Mollner           Executive Vice President
Jeremiah A. Mullins           Executive Vice President
Richard F. Powers, III        Executive Vice President and Director
John H. Schaefer              Executive Vice President
Thomas C. Schneider           Executive Vice President, Chief Financial Officer and Director
Robert B. Sculthorpe          Executive Vice President
William B. Smith              Executive Vice President and Director
Samuel H. Wolcott, III        Executive Vice President
Anthony Basile                Senior Vice President
Ronald T. Carman              Senior Vice President, Associate General Counsel and Assistant Secretary
Michael T. Cunningham         Senior Vice President
Mary E. Curran                Senior Vice President
David Diaz                    Senior Vice President
Raymond P. Douglas            Senior Vice President
Paul J. Dubow                 Senior Vice President and Deputy General Counsel
Michael T. Gregg              Senior Vice President and Deputy General Counsel
Erick R. Holt                 Senior Vice President and Assistant Secretary
Birendra Kumar                Senior Vice President and Treasurer
</TABLE>
    
<PAGE>

   
<TABLE>
<CAPTION>
NAME AND PRINCIPAL BUSINESS
ADDRESS OF EACH SUCH PERSON                             POSITIONS AND OFFICES WITH UNDERWRITER
- ----------------------------  ------------------------------------------------------------------------------------------
<S>                           <C>
George R. Ross                Senior Vice President
Robert P. Seass               Senior Vice President
Joseph G. Siniscalchi         Senior Vice President and Controller, Dean Witter Financial
Michael H. Stone              Senior Vice President
Lawrence Volpe                Senior Vice President and Controller, Dean Witter Reynolds Inc.
                               and Dean Witter Capital
Lorena J. Kern                Senior Vice President
Kathryn M. McNamara           Senior Vice President and Director of Governmental Affairs
Michael D. Browne             Assistant Secretary
Linda M. Butler               Assistant Secretary
Marilyn Cranney               Assistant Secretary
Sheldon Curtis                Assistant Secretary
Barry Fink                    Assistant Secretary
Sabrina Hurley                Assistant Secretary
Barbara B. Kiley              Assistant Secretary
</TABLE>
    
    The principal address of  Dean Witter is Two  World Trade Center, New  York,
New York 10048.
<PAGE>
29C.  COMPENSATION OF DEAN WITTER
 
    The  following  commissions and  other  compensation were  received  by each
principal underwriter, directly  or indirectly, from  the Registrant during  the
Registrant's last fiscal year:
 
   
<TABLE>
<CAPTION>
      (1)             (2)            (3)             (4)            (5)
                      NET        COMPENSATION
                 UNDERWRITING   OR REDEMPTION
    NAME OF      DISCOUNTS AND        OR          BROKERAGE
   PRINCIPAL      COMMISSIONS   ANNUITIZATION    COMMISSIONS    COMPENSATION
- ---------------  -------------  --------------  -------------  --------------
<S>              <C>            <C>             <C>            <C>
Dean Witter
Reynolds Inc.                                    $  149,521
</TABLE>
    
 
30.  LOCATION OF ACCOUNTS AND RECORDS
 
    Michael J. Velotta
    Northbrook Life Insurance Company
    3100 Sanders Road
    Northbrook, Illinois 60062
 
31.  MANAGEMENT SERVICES
 
    None
 
32.  UNDERTAKINGS
 
    The   Registrant  promises  to  file  a  post-effective  amendment  to  this
Registration Statement as frequently as is necessary to ensure that the  audited
financial statements in the Registration Statement are never more than 16 months
old  for  so  long as  payments  under  the variable  annuity  contracts  may be
accepted. Registrant  furthermore  agrees  to  include either  as  part  of  any
application  to purchase a contract  offered by the prospectus,  a space that an
applicant can check to request a  Statement of Additional Information or a  post
card  or similar written communication affixed  to or included in the Prospectus
that the applicant can remove to send for a Statement of Additional Information.
Finally,  the  Registrant  agrees  to   deliver  any  Statement  of   Additional
Information  and any  Financial Statements required  to be  made available under
this Form N-4 promptly upon written or oral request.
 
33.  REPRESENTATIONS PURSUANT TO SECTION 403(B) OF THE INTERNAL REVENUE CODE
 
    The Company  represents  that  it  is  relying  upon  a  November  28,  1988
Securities  and  Exchange Commission  no-action  letter issued  to  the American
Council of Life Insurance ("ACLI") and that the provisions of paragraphs 1-4  of
the no-action letter have been complied with.

34.  REPRESENTATION REGARDING CONTRACT EXPENSES

   
    Northbrook Life Insurance Company ("Northbrook Life") represents that the 
fees and charges deducted under the Individual Variable Annuity Contracts 
hereby registered by this Registration Statement, in the aggregate, are 
reasonable in relation to the services rendered, the expenses expected to be 
incurred, and the risks assumed by Northbrook Life.
    

<PAGE>
                                   SIGNATURES
   
    As required by the Securities Act of 1933 and the Investment Company Act 
of 1940, the Registrant, Northbrook Variable Annuity Account, certifies that 
it meets the requirements of Securities Act Rule 485(b) for effectiveness of 
this Registration Statement and has caused this Registration Statement to be 
signed on its behalf by the undersigned, thereunto duly authorized, and its 
seal to be hereunto affixed and attested, all in the Township of Northfield, 
State of Illinois, on this 10th day of April 1997.
    
 

       NORTHBROOK VARIABLE ANNUITY ACCOUNT
                 (REGISTRANT)
                                         BY:  NORTHBROOK LIFE INSURANCE COMPANY
                                                       (DEPOSITOR)

 
(SEAL)       /s/ BRENDA D. SNEED                   /s/ MICHAEL J. VELOTTA
Attest: ------------------------------  By:  ----------------------------------
               Brenda D. Sneed                       Michael J. Velotta
           Assistant Secretary and             Vice President, Secretary and
          Assistant General Counsel                   General Counsel
   
    As required by the  Securities  Act  of  1933, this Registration 
Statement has been duly signed below by  the following  Directors  and 
Officers  of Northbrook  Life  Insurance Company on this 10th day of
April 1997.
 
                                      Chairman of the Board of
         */LOUIS G. LOWER, II          Directors and Chief
- -----------------------------------    Executive Officer
           Louis G. Lower, II          (Principal Executive
                                       Officer)
 
       /s/ MICHAEL J. VELOTTA         Vice President,
- -----------------------------------    Secretary, General
           Michael J. Velotta          Counsel and Director

        */PETER H. HECKMAN           President, Chief
- -----------------------------------    Operating Officer and
          Peter H. Heckman             Director
 
       */JOHN R. HUNTER              Assistant Vice
- -----------------------------------    President and
         John R. Hunter                Director

        */KEVIN R. SLAWIN             Vice President
- -----------------------------------    and Director, (Principal 
          Kevin R. Slawin             Financial Officer)
 
        */CASEY J. SYLLA
- -----------------------------------   Chief Investment Officer
          Casey J. Sylla               and Director

       */MARLA G. FRIEDMAN            Vice President
- -----------------------------------
         Marla G. Friedman

       */KAREN C. GARDNER             Vice President
- -----------------------------------
         Karen C. Gardner
 
       */JAMES P. ZILS
- -----------------------------------   Treasurer
         James P. Zils
 
        */KEITH A. HAUSCHILDT
- -----------------------------------   Assistant Vice President
          Keith A. Hauschildt          and Controller, (Principal
                                       Accounting Officer)
 
 */ By Michael J. Velotta, pursuant to Power of Attorney, previously filed.
    

<PAGE>

                                                                   EXHIBIT 10(a)

 

                             CONSENT OF ACCOUNTANTS

<PAGE>

                         INDEPENDENT AUDITORS' CONSENT

 

   
We consent to the use in this Post-Effective Amendment No. 22 to Registration 
Statement No. 002-82511 of Northbrook Variable Annuity Account of Northbrook 
Life Insurance Company on Form N-4 of our report dated February 21, 1997 
relating to the financial statements and financial statement schedule of 
Northbrook Life Insurance Company and our report dated February 21, 1997 
relating to the financial statements of Northbrook Variable Annuity Account 
contained in the Statement of Additional Information (which is incorporated 
by reference in the Prospectus of Northbrook Variable Annuity Account of 
Northbrook Life Insurance Company) which is part of such Registration 
Statement, and to the reference to us under the heading "Experts" in such 
Statement of Additional Information.
    

 

/s/ DELOITTE & TOUCHE LLP

 
   
Chicago, Illinois
April 15, 1997
    


<PAGE>

NLIC VAI HIGH YIELD
                     NO. YEARS       1.000

      TRANSACTION      DATE        $ VALUE   UNIT VALUE  NO. UNITS    END VALUE

      INIT DEPOSIT     29-Dec-95   1000.00    27.054944   36.96182
      FEE              31-Dec-96      0.692   29.993293    0.02307

    RESULTING VALUE    31-Dec-96              29.993293   36.93875    1107.9147

                                     1.000
  FORMULA:                      1000*(1+T)=   1107.9147
                                          =   1057.5190
                  T=Std Avg Ann Tot Return=       5.75%
                                        R =       5.75%

NLIC VAI EQUITY
                       NO. YEARS           1.000

      TRANSACTION        DATE     $ VALUE    UNIT VALUE  NO. UNITS    END VALUE

      INIT DEPOSIT     29-Dec-95   1000.00    43.584604   22.94388
      FEE              31-Dec-96     0.692    48.482659    0.01427

    RESULTING VALUE    31-Dec-96              48.482659   22.92961    1111.6884

                                     1.000
  FORMULA:                      1000*(1+T)=      1111.6884
                                          =      1061.1040
                T=Std Avg Ann Total Return=          6.11%
                                        R =          6.11%

NLIC VAI QUALITY INCOME
                       NO. YEARS           1.000

      TRANSACTION      DATE        $ VALUE    UNIT VALUE  NO. UNITS   END VALUE

      INIT DEPOSIT     29-Dec-95   1000.00     20.497516  48.78640
      FEE              31-Dec-96      0.692    20.608465   0.03358

    RESULTING VALUE    31-Dec-96               20.608465  48.75282    1004.7208

                                     1.000
  FORMULA:                      1000*(1+T)=    1004.7208
                                          =     959.4848
                T=Std Avg Ann Total Return=       -4.05%
                                        R =       -4.05%


<PAGE>

NLIC VAI STRATEGIST
                       NO. YEARS     1.000

      TRANSACTION      DATE        $ VALUE    UNIT VALUE  NO. UNITS   END VALUE

      INIT DEPOSIT     29-Dec-95   1000.00     20.284229   49.29938
      FEE              31-Dec-96      0.692    23.098424    0.02996

    RESULTING VALUE    31-Dec-96               23.098424   49.26943   1138.0461

                                     1.000
  FORMULA:                      1000*(1+T)=    1138.0461
                                          =    1086.1438
                T=Std Avg Ann Total Return=        8.61%
                                        R =        8.61%

NLIC VAI DIVIDEND GROWTH
                       NO. YEARS     1.000

      TRANSACTION      DATE        $ VALUE    UNIT VALUE  NO. UNITS   END VALUE

      INIT DEPOSIT     29-Dec-95   1000.00     18.128380   55.16213
      FEE              31-Dec-96      0.692    22.247657    0.03110

    RESULTING VALUE    31-Dec-96               22.247657   55.13102   1226.5361

                                     1.000
  FORMULA:                      1000*(1+T)=    1226.5361
                                          =    1170.2093
                T=Std Avg Ann Total Return=       17.02%
                                        R =       17.02%

NLIC VAI UTILITIES
                       NO. YEARS     1.000

      TRANSACTION      DATE        $ VALUE    UNIT VALUE  NO. UNITS   END VALUE

      INIT DEPOSIT     29-Dec-95   1000.00     18.131828   55.15164
      FEE              31-Dec-96      0.692    19.508713    0.03547

    RESULTING VALUE    31-Dec-96               19.508713   55.11617   1075.2455

                                     1.000
  FORMULA:                      1000*(1+T)=    1075.2455
                                          =    1026.4832
                T=Std Avg Ann Total Return=        2.65%
                                        R =        2.65%


<PAGE>

NLIC VAI EUROPEAN GROWTH
                     NO. YEARS       1.000

      TRANSACTION      DATE        $ VALUE    UNIT VALUE  NO. UNITS   END VALUE

      INIT DEPOSIT     29-Dec-95   1000.00    19.299488   51.81485
      FEE              31-Dec-96      0.692   24.837037    0.02786

    RESULTING VALUE    31-Dec-96              24.837037   51.78698    1286.2352

                                     1.000
  FORMULA:                      1000*(1+T)=   1286.2352
                                          =   1226.9235
                T=Std Avg Ann Total Return=      22.69%
                                        R =      22.69%

NLIC VAI CAPITAL GROWTH
                      NO. YEARS      1.000

      TRANSACTION      DATE        $ VALUE    UNIT VALUE  NO. UNITS   END VALUE

      INIT DEPOSIT     29-Dec-95   1000.00     15.177296   65.88789
      FEE              31-Dec-96      0.692    16.760477    0.04129

    RESULTING VALUE    31-Dec-96               16.760477   65.84660   1103.6205

                                     1.000
  FORMULA:                      1000*(1+T)=    1103.6205
                                          =    1053.4394
                T=Std Avg Ann Total Return=        5.34%
                                        R =        5.34%

NLIC VAI PACIFIC GROWTH
                      NO. YEARS      1.000

      TRANSACTION      DATE        $ VALUE    UNIT VALUE  NO. UNITS   END VALUE

      INIT DEPOSIT     29-Dec-95   1000.00      9.681504  103.28974
      FEE              31-Dec-96      0.692     9.957264    0.06950

    RESULTING VALUE    31-Dec-96                9.957264  103.22024   1027.7912

                                     1.000
  FORMULA:                      1000*(1+T)=    1027.7912
                                          =     981.4016
                T=Std Avg Ann Total Return=       -1.86%
                                        R =       -1.86%


<PAGE>

NLIC VAI GLOBAL DIVIDEND GROWTH
                      NO. YEARS      1.000

      TRANSACTION      DATE        $ VALUE    UNIT VALUE  NO. UNITS   END VALUE

      INIT DEPOSIT     29-Dec-95   1000.00     12.012328   83.24781
      FEE              31-Dec-96      0.692    13.983705    0.04949

    RESULTING VALUE    31-Dec-96               13.983705   83.19832   1163.4208

                                     1.000
  FORMULA:                      1000*(1+T)=    1163.4208
                                          =    1110.2498
                T=Std Avg Ann Total Return=       11.02%
                                        R =       11.02%
<PAGE>

NLIC VAI HIGH YIELD

                    NO. YEARS       5.000

    TRANSACTION        DATE        $ VALUE    UNIT VALUE  NO. UNITS   END VALUE

  INIT DEPOSIT     31-Dec-91       1000.00     17.064481   58.60125
  FEE              31-Dec-92          0.692    20.007584    0.03459
  FEE              31-Dec-93          0.692    24.608790    0.02812
  FEE              31-Dec-94          0.692    23.823494    0.02905
  FEE              31-Dec-95          0.692    27.054944    0.02558
  FEE              31-Dec-96          0.692    29.993293    0.02307

 RESULTING VALUE   31-Dec-96                   29.993293   58.46085   1753.4335

                                    5.000
  FORMULA:                     1000*(1+T)=     1753.4335
                                         =   1736.899116
                 T=Std Avg Ann Tot Return=        11.67%
                                       R =        73.69%

NLIC VAI EQUITY

                    NO. YEARS        5.000

    TRANSACTION        DATE        $ VALUE    UNIT VALUE  NO. UNITS   END VALUE

   INIT DEPOSIT     31-Dec-91      1000.00     27.915861   35.82193
   FEE              31-Dec-92        0.692     27.680533    0.02500
   FEE              31-Dec-93        0.692     32.806752    0.02109
   FEE              31-Dec-94        0.692     30.546323    0.02265
   FEE              31-Dec-95        0.692     43.584604    0.01588
   FEE              31-Dec-96        0.692     48.482659    0.01427

 RESULTING VALUE    31-Dec-96                  48.482659   35.72303   1731.9476

                                     5.000
  FORMULA:                      1000*(1+T)=    1731.9476
                                          =  1715.628111
                  T=Std Avg Ann Tot Return=       11.40%
                                        R =       71.56%


<PAGE>

NLIC VAI QUALITY INCOME

                    NO. YEARS        5.000

    TRANSACTION        DATE        $ VALUE    UNIT VALUE  NO. UNITS   END VALUE

   INIT DEPOSIT     31-Dec-91      1000.00     15.015700   66.59696
   FEE              31-Dec-92         0.692    16.096488    0.04299
   FEE              31-Dec-93         0.692    18.009977    0.03842
   FEE              31-Dec-94         0.692    16.606829    0.04167
   FEE              31-Dec-95         0.692    20.497516    0.03376
   FEE              31-Dec-96         0.692    20.608465    0.03358

 RESULTING VALUE    31-Dec-96                  20.608465   66.40654   1368.5368

                                     5.000
  FORMULA:                      1000*(1+T)=    1368.5368
                                          =  1355.851481
                  T=Std Avg Ann Tot Return=        6.28%
                                        R =       35.59%

NLIC VAI STRATEGIST

                    NO. YEARS       5.000

    TRANSACTION        DATE       $ VALUE     UNIT VALUE  NO. UNITS   END VALUE

   INIT DEPOSIT     31-Dec-91     1000.00      15.683739   63.76031
   FEE              31-Dec-92        0.692     16.650863    0.04156
   FEE              31-Dec-93        0.692     18.198751    0.03802
   FEE              31-Dec-94        0.692     18.742707    0.03692
   FEE              31-Dec-95        0.692     20.284229    0.03412
   FEE              31-Dec-96        0.692     23.098424    0.02996

 RESULTING VALUE    31-Dec-96                  23.098424   63.57973   1468.5915

                                    5.000
  FORMULA:                     1000*(1+T)=     1468.5915
                                         =   1454.905581
                 T=Std Avg Ann Tot Return=         7.79%
                                       R =        45.49%


<PAGE>


NLIC VAI DIVIDEND GROWTH

                    NO. YEARS       5.000

    TRANSACTION        DATE       $ VALUE    UNIT VALUE  NO. UNITS    END VALUE

   INIT DEPOSIT     31-Dec-91     1000.00     11.564074   86.47471
   FEE              31-Dec-92        0.692    12.383233    0.05588
   FEE              31-Dec-93        0.692    14.018720    0.04936
   FEE              31-Dec-94        0.692    13.498745    0.05126
   FEE              31-Dec-95        0.692    18.128380    0.03817
   FEE              31-Dec-96        0.692    22.247657    0.03110

 RESULTING VALUE    31-Dec-96                 22.247657   86.24893    1918.8366

                                    5.000
  FORMULA:                    1000*(1+T)=     1918.8366
                                        =   1900.648234
                T=Std Avg Ann Tot Return=        13.71%
                                      R =        90.06%

NLIC VAI UTILITIES

                    NO. YEARS       5.000

    TRANSACTION        DATE       $ VALUE     UNIT VALUE  NO. UNITS   END VALUE

   INIT DEPOSIT     31-Dec-91     1000.00      12.372150   80.82670
   FEE              31-Dec-92        0.692     13.797394    0.05015
   FEE              31-Dec-93        0.692     15.803852    0.04379
   FEE              31-Dec-94        0.692     14.245641    0.04858
   FEE              31-Dec-95        0.692     18.131828    0.03816
   FEE              31-Dec-96        0.692     19.508713    0.03547

 RESULTING VALUE    31-Dec-96                  19.508713   80.61054   1572.6079

                                    5.000
  FORMULA:                    1000*(1+T)=      1572.6079
                                        =    1557.881844
                T=Std Avg Ann Tot Return=          9.27%
                                      R =         55.79%


<PAGE>


NLIC VAI EUROPEAN GROWTH

                    NO. YEARS       5.000

    TRANSACTION        DATE       $ VALUE     UNIT VALUE  NO. UNITS   END VALUE

   INIT DEPOSIT     31-Dec-91     1000.00      10.049828   99.50419
   FEE              31-Dec-92        0.692     10.346815    0.06688
   FEE              31-Dec-93        0.692     14.432504    0.04795
   FEE              31-Dec-94        0.692     15.503343    0.04464
   FEE              31-Dec-95        0.692     19.299488    0.03586
   FEE              31-Dec-96        0.692     24.837037    0.02786

 RESULTING VALUE    31-Dec-96                  24.837037   99.28101   2465.8461

                                    5.000
  FORMULA:                    1000*(1+T)=      2465.8461
                                        =     2442.18765
                T=Std Avg Ann Tot Return=         19.55%
                                      R =        144.22%

NLIC VAI CAPITAL GROWTH

                    NO. YEARS       5.000

    TRANSACTION        DATE       $ VALUE     UNIT VALUE  NO. UNITS   END VALUE

   INIT DEPOSIT     31-Dec-91     1000.00      12.734508   78.52679
   FEE              31-Dec-92        0.692     12.813629    0.05400
   FEE              31-Dec-93        0.692     11.799106    0.05865
   FEE              31-Dec-94        0.692     11.475754    0.06030
   FEE              31-Dec-95        0.692     15.177296    0.04559
   FEE              31-Dec-96        0.692     16.760477    0.04129

 RESULTING VALUE    31-Dec-96                  16.760477   78.26695   1311.7914

                                    5.000
  FORMULA:                    1000*(1+T)=      1311.7914
                                        =    1299.673512
                T=Std Avg Ann Tot Return=          5.38%
                                      R =         29.97%

<PAGE>


NLIC VAI HIGH YIELD

                  NO. YEARS      10.000

    TRANSACTION    DATE        $ VALUE    UNIT VALUE    NO. UNITS    END VALUE

   INIT DEPOSIT    31-Dec-86   1000.00      16.419896     60.90173
   FEE             31-Dec-87      0.692     15.761891      0.04390
   FEE             31-Dec-88      0.692     17.324248      0.03994
   FEE             31-Dec-89      0.692     14.992631      0.04616
   FEE             31-Dec-90      0.692     10.863944      0.06370
   FEE             31-Dec-91      0.692     17.064481      0.04055
   FEE             31-Dec-92      0.692     20.007584      0.03459
   FEE             31-Dec-93      0.692     24.608790      0.02812
   FEE             31-Dec-94      0.692     23.823494      0.02905
   FEE             31-Dec-95      0.692     27.054944      0.02558
   FEE             31-Dec-96      0.692     29.993293      0.02307

RESULTING VALUE    31-Dec-96                29.993293     60.52707   1815.406142

                                     10
FORMULA:                    1000*(1+T)=   1815.406142
                                      =   1815.406142
              T=Std Avg Ann Tot Return=         6.14%
                                    R =        81.54%

<PAGE>

NLIC VAI EQUITY

                  NO. YEARS    10.00000

   TRANSACTION     DATE         $ VALUE    UNIT VALUE   NO. UNITS    END VALUE

   INIT DEPOSIT    31-Dec-86       1000      15.63450   63.96111574
   FEE             31-Dec-87      0.692      14.51612   0.047671144
   FEE             31-Dec-88      0.692      15.786104  0.043836022
   FEE             31-Dec-89      0.692      18.57955   0.037245261
   FEE             31-Dec-90      0.692      17.72823   0.039033787
   FEE             31-Dec-91      0.692      27.91586   0.024788775
   FEE             31-Dec-92      0.69      27.680533      0.02500
   FEE             31-Dec-93      0.692     32.806752      0.02109
   FEE             31-Dec-94      0.692     30.546323      0.02265
   FEE             31-Dec-95      0.692     43.584604      0.01588
   FEE             31-Dec-96      0.692     48.482659      0.01427

RESULTING VALUE    31-Dec-96                48.482659     63.66964   3086.873618

                                     10
FORMULA:                    1000*(1+T)=   3086.873618
                                      =   3086.873618
              T=Std Avg Ann Tot Return=        11.93%
                                    R =       208.69%

<PAGE>

NLIC VAI QUALITY INCOME

                  NO. YEARS      9.837

    TRANSACTION      DATE       $ VALUE    UNIT VALUE    NO. UNITS     END VALUE

 0 INIT DEPOSIT    01-Mar-87   1000.00      10.000000    100.00000
 1 FEE             01-Mar-88      0.692     10.572454      0.06545
 2 FEE             01-Mar-89      0.692     10.802647      0.06406
 3 FEE             01-Mar-90      0.692     11.821703      0.05854
 4 FEE             01-Mar-91      0.692     13.110273      0.05278
 5 FEE             01-Mar-92      0.692     14.889654      0.04648
 6 FEE             01-Mar-93      0.692     16.959219      0.04080
 7 FEE             01-Mar-94      0.692     17.629095      0.03925
 8 FEE             01-Mar-95      0.692     17.492449      0.03956
 9 FEE             01-Mar-96      0.692     20.046927      0.03452
10 FEE             31-Dec-96      0.692     20.608465      0.03358

RESULTING VALUE    31-Dec-96                20.608465     99.52498    2051.0571

                                  9.837
FORMULA:                     1000*(1+T)=    2051.0571
                                       =   2051.057055
               T=Std Avg Ann Tot Return=         7.58%
                                     R =       105.11%

<PAGE>

NLIC VAI STRATEGIST

                  NO. YEARS       9.837

    TRANSACTION      DATE       $ VALUE    UNIT VALUE    NO. UNITS     END VALUE

 0 INIT DEPOSIT    01-Mar-87   1000.00      10.000000    100.00000
 1 FEE             01-Mar-88      0.692     10.718726      0.06456
 2 FEE             01-Mar-89      0.692     11.328647      0.06108
 3 FEE             01-Mar-90      0.692     12.266483      0.05641
 4 FEE             01-Mar-91      0.692     13.795925      0.05016
 5 FEE             01-Mar-92      0.692     15.830227      0.04371
 6 FEE             01-Mar-93      0.692     17.059340      0.04056
 7 FEE             01-Mar-94      0.692     18.379823      0.03765
 8 FEE             01-Mar-95      0.692     18.911245      0.03659
 9 FEE             01-Mar-96      0.692     20.916732      0.03308
10 FEE             31-Dec-96      0.692     23.098424      0.02996

 RESULTING VALUE   31-Dec-96                23.098424     99.54622    2299.3608

                                  9.837
FORMULA:                     1000*(1+T)=    2299.3608
                                       =   2299.360796
               T=Std Avg Ann Tot Return=         8.83%
                                     R =       129.94%

NLIC VAI DIVIDEND GROWTH

                  NO. YEARS       6.836

    TRANSACTION      DATE       $ VALUE    UNIT VALUE    NO. UNITS     END VALUE

 0 INIT DEPOSIT    01-Mar-90   1000.00      10.000000    100.00000
 1 FEE             01-Mar-91      0.692     10.332453      0.06697
 2 FEE             01-Mar-92      0.692     11.633340      0.05948
 3 FEE             01-Mar-93      0.692     12.822116      0.05397
 4 FEE             01-Mar-94      0.692     13.840125      0.05000
 5 FEE             01-Mar-95      0.692     14.301718      0.04839
 6 FEE             01-Mar-96      0.692     19.234847      0.03598
 7 FEE             31-Dec-96      0.692     22.247657      0.03110

  RESULTING VALUE  31-Dec-96                22.247657     99.65411    2217.0704

                                  6.836
FORMULA:                     1000*(1+T)=    2217.0704
                                       =   2217.070391
               T=Std Avg Ann Tot Return=        12.35%
                                     R =       121.71%

<PAGE>

NLIC VAI UTILITIES

                  NO. YEARS       6.836

    TRANSACTION     DATE        $ VALUE    UNIT VALUE    NO. UNITS    END VALUE

 0 INIT DEPOSIT    01-Mar-90    1000.00     10.000000    100.00000
 1 FEE             01-Mar-91      0.692     10.708783      0.06462
 2 FEE             01-Mar-92      0.692     11.931271      0.05800
 3 FEE             01-Mar-93      0.692     14.841412      0.04663
 4 FEE             01-Mar-94      0.692     15.018084      0.04608
 5 FEE             01-Mar-95      0.692     14.804435      0.04674
 6 FEE             01-Mar-96      0.692     18.260926      0.03790
 7 FEE             31-Dec-96      0.692     19.508713      0.03547

RESULTING VALUE    31-Dec-96                19.508713     99.66457    1944.3275

                                  6.836
FORMULA:                     1000*(1+T)=    1944.3275
                                       =  1944.327454
               T=Std Avg Ann Tot Return=       10.21%
                                     R =       94.43%



NLIC VAI EUROPEAN GROWTH

                  NO. YEARS       5.837

    TRANSACTION     DATE        $ VALUE    UNIT VALUE    NO. UNITS   END VALUE

 0 INIT DEPOSIT    01-Mar-91    1000.00     10.000000    100.00000
 1 FEE             01-Mar-92      0.692     10.342458      0.06691
 2 FEE             01-Mar-93      0.692     10.819823      0.06396
 3 FEE             01-Mar-94      0.692     14.932663      0.04634
 4 FEE             01-Mar-95      0.692     15.889428      0.04355
 5 FEE             01-Mar-96      0.692     20.288419      0.03411
 6 FEE             31-Dec-96      0.692     24.837037      0.02786

RESULTING VALUE    31-Dec-96                24.837037     99.71727    2476.6816

                                  5.837
FORMULA:                     1000*(1+T)=    2476.6816
                                       =   2452.914773
               T=Std Avg Ann Tot Return=        16.62%
                                     R =       145.29%

<PAGE>

NLIC VAI CAPITAL GROWTH

                   NO. YEARS         5.837

    TRANSACTION     DATE        $ VALUE    UNIT VALUE    NO. UNITS    END VALUE

 0 INIT DEPOSIT    01-Mar-91    1000.00     10.000000    100.00000
 1 FEE             01-Mar-92      0.692     12.184182      0.05679
 2 FEE             01-Mar-93      0.692     11.927075      0.05802
 3 FEE             01-Mar-94      0.692     11.869900      0.05830
 4 FEE             01-Mar-95      0.692     12.323505      0.05615
 5 FEE             01-Mar-96      0.692     16.017288      0.04320
 6 FEE             31-Dec-96      0.692     16.760477      0.04129

RESULTING VALUE    31-Dec-96                16.760477     99.68624    1670.7890

                                  5.837
FORMULA:                     1000*(1+T)=    1670.7890
                                       =  1655.081098
               T=Std Avg Ann Tot Return=        9.02%
                                     R =       65.51%



NLIC VAI PACIFIC GROWTH

                   NO. YEARS      2.853

    TRANSACTION     DATE        $ VALUE    UNIT VALUE    NO. UNITS    END VALUE

 0 INIT DEPOSIT    23-Feb-94    1000.00     10.000000    100.00000
 1 FEE             23-Feb-95      0.692      8.657681      0.07993
 2 FEE             23-Feb-96      0.692     10.474231      0.06607
 3 FEE             31-Dec-96      0.692      9.957264      0.06950

RESULTING VALUE    31-Dec-96                 9.957264     99.78451     993.5807

                                  2.853
FORMULA:                     1000*(1+T)=     993.5807
                                       =   957.8374528
               T=Std Avg Ann Tot Return=        -1.50%
                                     R =        -4.22%

<PAGE>

NLIC VAI GLOBAL DIVIDEND GROWTH

                  NO. YEARS       2.853

    TRANSACTION     DATE       $ VALUE    UNIT VALUE    NO. UNITS     END VALUE

 0 INIT DEPOSIT    23-Feb-94   1000.00      10.000000    100.00000
 1 FEE             23-Feb-95      0.692     10.011806      0.06912
 2 FEE             23-Feb-96      0.692     12.363990      0.05597
 3 FEE             31-Dec-96      0.692     13.983705      0.04949

RESULTING VALUE    31-Dec-96                13.983705     99.82543    1395.9293

                                  2.853
FORMULA:                     1000*(1+T)=    1395.9293
                                       =   1344.092142
               T=Std Avg Ann Tot Return=        10.92%
                                     R =        34.41%

<PAGE>

NLIC VAI Non-standardized Performance

Dates:
Current:                      12/31/96
3 Months Ago:                 09/30/96
End of Last Year:             12/29/95
One Yr Ago:                   12/29/95
Five Yrs Ago:                 12/31/91
Ten Yrs Ago:                  12/31/86
 

<TABLE>
<CAPTION>

                        Inception      Inception      Ten Yr         Five Yr        One Yr         Today's        Inception      
Fund                    Date           AUV            AUV            AUV            AUV            AUV            Total          
<S>                    <C>            <C>            <C>            <C>            <C>            <C>             <C>   
High Yield              03/09/84       10.001774      16.419896      17.064481      27.054944      29.993293        199.88%      
Equity                  03/09/84           10.01      15.634499      27.915861      43.584604      48.482659        384.34%      
Quality Income          03/01/87              10           N/A         15.0157      20.497516      20.608465        106.08%      
Managed Assets          03/01/87              10           N/A       15.683739      20.284229      23.098424        130.98%      
Dividend Growth         03/01/90              10           N/A       11.564074       18.12838      22.247657        122.48%      
Utilities               03/01/90              10           N/A        12.37215      18.131828      19.508713         95.09%      
European Growth         03/01/91              10           N/A       10.049828      19.299488      24.837037        148.37%      
Capital Growth          03/01/91              10           N/A       12.734508      15.177296      16.760477         67.60%      
Pacific Growth          02/23/94              10           N/A            N/A        9.681504       9.957264         -0.43%      
Global Div Growth       02/23/94              10           N/A            N/A       12.012328      13.983705         39.84%      



<CAPTION>
                        Inception      Ten Years      Ten Years      Five Years     Five Years     One Year
Fund                    Average        Total          Average        Total          Average
<S>                    <C>            <C>            <C>            <C>            <C>            <C>         
High Yield                 8.94%         82.66%          6.21%         75.76%         11.94%         10.86%
Equity                    13.09%        210.10%         11.98%         73.67%         11.67%         11.24%
Quality Income             7.62%           N/A            N/A          37.25%          6.54%          0.54%
Managed Assets             8.88%           N/A            N/A          47.28%          8.05%         13.87%
Dividend Growth           12.40%           N/A            N/A          92.39%         13.98%         22.72%
Utilities                 10.26%           N/A            N/A          57.68%          9.54%          7.59%
European Growth           16.85%           N/A            N/A         147.14%         19.84%         28.69%
Capital Growth             9.24%           N/A            N/A          31.61%          5.65%         10.43%
Pacific Growth            -0.15%           N/A            N/A            N/A            N/A           2.85%
Global Div Growth         12.46%           N/A            N/A            N/A            N/A          16.41%

</TABLE>


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