NORTHBROOK VARIABLE ANNUITY ACCOUNT
485BPOS, 1999-04-30
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    AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON APRIL 30, 1999
    -----------------------------------------------------------------------

                                                           FILE NOS. 002-82511
                                                                     811-03688

                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549

                                   FORM N-4

            REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

                      POST-EFFECTIVE AMENDMENT NO. 23 /X/

                                    AND/OR

              REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY
                                  ACT OF 1940

                              AMENDMENT NO. 20/X/

                      NORTHBROOK VARIABLE ANNUITY ACCOUNT
                          (Exact Name of Registrant)

                       NORTHBROOK LIFE INSURANCE COMPANY
                              (Name of Depositor)

                                3100 SANDERS ROAD
                          NORTHBROOK, ILLINOIS 60062
                                 847/402-2400
        (Address and Telephone Number of Depositor's Principal Offices)

                              MICHAEL J. VELOTTA
                 VICE PRESIDENT, SECRETARY AND GENERAL COUNSEL
                       NORTHBROOK LIFE INSURANCE COMPANY
                              3100 SAUNDERS ROAD
                          NORTHBROOK, ILLINOIS 60062
                                 847/402-2400
      (Name, Complete Address and Telephone Number of Agent for Service)

                      COPIES TO: 

     RICHARD T. CHOI, ESQUIRE
   FREEDMAN, LEVY, KROLL & SIMONDS            CHRISTINE A. EDWARDS, ESQUIRE
    1050 CONNECTICUT AVENUE, N.W.               DEAN WITTER REYNOLDS INC.
             SUITE 825                           TWO WORLD TRADE CENTER
     WASHINGTON, D.C. 20036-5366                NEW YORK, NEW YORK 10048


<PAGE>

           Approximate date of proposed public offering: Continuous

             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, 1999 pursuant to paragraph (b) of Rule 485
/ / 60 days after filing pursuant to paragraph (a)(1) of Rule 485
/ / on (date) pursuant to paragraph (a)(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.

Title of  Securities  Being  Registered:  Units of Interest in the  Northbrook
Variable Annuity Account under deferred variable annuity contracts.


<PAGE>
   
                          DEAN WITTER VARIABLE ANNUITY


NORTHBROOK LIFE INSURANCE COMPANY                 PROSPECTUS DATED MAY 1, 1999
P.O. BOX 94040
PALATINE, IL 60094
TELEPHONE NUMBER: 1-800-654-2397


Northbrook Life Insurance Company  ("NORTHBROOK")  has issued the Morgan Stanley
Dean Witter Variable Annuity,  an individual and group flexible premium deferred
variable annuity contract  ("CONTRACT").  This prospectus  contains  information
about the  Contract  that you should know before  investing.  Please keep it for
future reference.

The  Contract  currently  offers  13  investment   alternatives   ("INVESTMENT
ALTERNATIVES").  The  investment  alternatives  include a fixed account option
("FIXED ACCOUNT") and 12 variable  sub-accounts  ("VARIABLE  SUB-ACCOUNTS") of
the Northbrook  Variable Annuity Account ("VARIABLE  ACCOUNT").  Each Variable
Sub-Account  invests  exclusively  in  shares  of the  following  mutual  fund
portfolios   ("PORTFOLIOS")   of  the  Morgan  Stanley  Dean  Witter  Variable
Investment Series ("FUND"):

MONEY MARKET PORTFOLIO                 GLOBAL DIVIDEND GROWTH PORTFOLIO
QUALITY INCOME PLUS PORTFOLIO          EUROPEAN GROWTH PORTFOLIO
HIGH YIELD PORTFOLIO                   PACIFIC GROWTH PORTFOLIO
UTILITIES PORTFOLIO                    CAPITAL GROWTH PORTFOLIO
INCOME BUILDER PORTFOLIO               EQUITY PORTFOLIO
DIVIDEND GROWTH PORTFOLIO              STRATEGIST PORTFOLIO


WE (Northbrook) have filed a Statement of Additional Information, dated May 1,
1999, with the Securities and Exchange  Commission  ("SEC").  It contains more
information about the Contract and is incorporated herein by reference,  which
means  that it is  legally a part of this  prospectus.  Its table of  contents
appears on page __ of this prospectus.  For a free copy,  please write or call
us at the  address  or  telephone  number  above,  or go to the SEC's Web site
(HTTP://WWW.SEC.GOV).  You can find other  information and documents about us,
including  documents that are legally a part of this prospectus,  at the SEC's
Web site.


                | THE SECURITIES  AND EXCHANGE  COMMISSION HAS NOT APPROVED OR
                | DISAPPROVED THE SECURITIES DESCRIBED IN THIS PROSPECTUS, NOR
                | HAS IT  PASSED  ON THE  ACCURACY  OR THE  ADEQUACY  OF  THIS
                | PROSPECTUS.  ANYONE WHO TELLS YOU  OTHERWISE IS COMMITTING A
                | FEDERAL CRIME.
IMPORTANT       |
NOTICES         |
                | THE CONTRACTS ARE NOT FDIC INSURED.


<PAGE>
<TABLE>
TABLE OF CONTENTS
 
<S>                    <C>                                                                       <C>
                                                                                                 PAGE


                       IMPORTANT TERMS.......................................................
                       THE CONTRACT AT A GLANCE..............................................
      OVERVIEW         HOW THE CONTRACT WORKS................................................
                       EXPENSE TABLE.........................................................
                       FINANCIAL INFORMATION.................................................


                       THE CONTRACT..........................................................
                       PURCHASES.............................................................
                       CONTRACT VALUE........................................................
                       INVESTMENT ALTERNATIVES...............................................
                         The Variable Sub-Accounts...........................................
                         The Fixed Account...................................................
                         Transfers...........................................................
      CONTRACT         EXPENSES..............................................................
      FEATURES         ACCESS TO YOUR MONEY..................................................
                       INCOME PAYMENTS.......................................................
                       DEATH BENEFITS........................................................


                       MORE INFORMATION ABOUT:
                         Northbrook..........................................................
                         The Variable Account................................................
                         The Portfolios......................................................
                         The Contract........................................................
         OTHER           Qualified Plans.....................................................
      INFORMATION        Legal Matters.......................................................
                         Year 2000...........................................................
                       TAXES.................................................................
                       PERFORMANCE INFORMATION...............................................
                       APPENDIX A--ACCUMULATION UNIT VALUES..................................
                       STATEMENT OF  ADDITIONAL INFORMATION TABLE OF CONTENTS................
</TABLE>


                                      2

<PAGE>

IMPORTANT TERMS


This  prospectus uses a number of important terms that you may not be familiar
with. The index below  identifies the page that describes each term. The first
use of each term in this prospectus appears in highlights.

                                                                          PAGE

 ACCUMULATION PHASE..................................................
 ACCUMULATION UNIT ..................................................
 ACCUMULATION UNIT VALUE ............................................
 ANNUITANT...........................................................
 AUTOMATIC ADDITIONS PROGRAM.........................................
 AUTOMATIC INCOME WITHDRAWALS........................................
 BENEFICIARY.........................................................
*CONTRACT ...........................................................
 CONTRACT ANNIVERSARY................................................
 CONTRACT OWNER ("YOU") .............................................
 CONTRACT VALUE .....................................................
 CONTRACT  YEAR......................................................
 DEATH BENEFIT.......................................................
 DOLLAR COST AVERAGING PROGRAM.......................................
 FIXED ACCOUNT.......................................................
 FREE WITHDRAWAL AMOUNT .............................................
 FUND................................................................
 INCOME PLAN ........................................................
 INVESTMENT ALTERNATIVES ............................................
 ISSUE DATE .........................................................
 NORTHBROOK ("WE")...................................................
 PAYOUT PHASE........................................................
 PAYOUT START DATE  .................................................
 PORTFOLIOS..........................................................
 QUALIFIED CONTRACTS.................................................
 SEC.................................................................
 SETTLEMENT  VALUE ..................................................
 VALUATION DATE......................................................
 VARIABLE ACCOUNT ...................................................
 VARIABLE SUB-ACCOUNT ...............................................


* In certain  states the Contract is available  only as a group  Contract.  In
these states,  we will issue you a certificate  that represents your ownership
and that  summarizes  the  provisions  of the group  Contract.  References  to
"Contract"  in  this  prospectus  include  certificates,  unless  the  context
requires otherwise.


                                      3

<PAGE>

THE CONTRACT AT A GLANCE


The following is a snapshot of the Contract. Please read the remainder of this
prospectus for more information.


 -----------------------------------------------------------------------------
 
 FLEXIBLE PAYMENTS      Although we are no longer offering new Contracts,  you
                        can add to your current  Contract as often and as much
                        as you like, but each payment must be at least $25. We
                        may  limit  the  total  payments  you  can  make  in a
                        "CONTRACT  YEAR,"  which we  measure  from the date we
                        issue your Contract and each Contract anniversary.

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

 EXPENSES               You will bear the following expenses:

                        *   Total Variable  Account annual fees equal to 1.00%
                            of average daily net assets

                        *   Annual contract maintenance charge of $30

                        *   Withdrawal  charges  not to exceed 6% of  purchase
                            payment withdrawn (with certain exceptions)

                        *   State premium tax (if your state imposes one)

                        In addition,  each  Portfolio  pays  expenses that you
                        will  bear  indirectly  if you  invest  in a  Variable
                        Sub-Account.

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

 INVESTMENT             The  Contract   offers  13   investment   alternatives
 ALTERNATIVES           including:

                        *   The Fixed Account (which credits interest at rates
                            we guarantee), and

                        *   12 Variable  Sub-Accounts  investing in Portfolios
                            offering  professional  money management by Morgan
                            Stanley Dean Witter Advisors, Inc.

                        To find out  current  rates  being  paid on the  Fixed
                        Account, or to find out how the Variable  Sub-Accounts
                        have performed, call us at 1-800-654-2397.

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

 SPECIAL SERVICES       For your convenience, we offer these special services:

                        *   AUTOMATIC ADDITIONS PROGRAM
                        *   AUTOMATIC INCOME WITHDRAWALS
                        *   DOLLAR COST AVERAGING PROGRAM

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


                                      4

<PAGE>

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

 INCOME PAYMENTS        You can choose fixed income payments,  variable income
                        payments, or a combination of the two. You can receive
                        your income payments in one of the following ways:

                        *   life income with payments guaranteed for 10 years
                        *   joint and survivor life income
                        *   guaranteed payments for a specified period

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

 DEATH BENEFITS         If  you  or  the  ANNUITANT  die  before  the  PAYOUT
                        START DATE, we will pay the death benefit described in
                        the Contract.

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

 TRANSFERS              Before the Payout Start Date,  you may  transfer  your
                        Contract value ("CONTRACT VALUE") among the investment
                        alternatives,  with  certain  restrictions.  Transfers
                        must be at  least  $100  or the  total  amount  in the
                        investment alternative, whichever is less.

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

 WITHDRAWALS            You may withdraw some or all of your Contract Value at
                        anytime  prior to the Payout Start Date.  You may take
                        partial  withdrawals   automatically  through  monthly
                        Automatic  Income  Withdrawals.  In general,  you must
                        withdraw  at least $500 at a time or the total  amount
                        in the investment alternative,  if less. A 10% federal
                        tax penalty may apply if you  withdraw  before you are
                        591/2years old. A withdrawal charge also may apply.

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


                                      5

<PAGE>

HOW THE CONTRACT WORKS

      The Contract basically works in two ways.

      First,  the Contract can help you (we assume you are the CONTRACT OWNER)
save for retirement because you can invest in up to 13 investment alternatives
and pay no federal  income taxes on any earnings  until you withdraw them. You
do this  during what we call the  "ACCUMULATION  PHASE" of the  Contract.  The
Accumulation  Phase  begins on the date we issue your  Contract  (we call that
date the "ISSUE DATE") and continues until the Payout Start Date, which is the
date we apply your money to provide income  payments.  During the Accumulation
Phase,  you may allocate  your  purchase  payments to any  combination  of the
Variable  Sub-Accounts  and/or the Fixed  Account.  If you invest in the Fixed
Account, you will earn a fixed rate of interest that we declare  periodically.
If you invest in any of the Variable Sub-Accounts, your investment return will
vary up or down depending on the performance of the corresponding Portfolios.

      Second,  the Contract can help you plan for  retirement  because you can
use it to receive  retirement  income for life and/or for a pre-set  number of
years,  by selecting one of the income payment  options (we call these "INCOME
PLANS")  described on page __. You receive income payments during what we call
the "PAYOUT PHASE" of the Contract,  which begins on the Payout Start Date and
continues  until we make the last  payment  required  by the  Income  Plan you
select.  During the Payout Phase, if you select a fixed income payment option,
we guarantee  the amount of your  payments,  which will remain  fixed.  If you
select a variable income payment option,  based on one or more of the Variable
Sub-Accounts,  the amount of your payments  will vary up or down  depending on
the  performance  of the  corresponding  Portfolios.  The  amount of money you
accumulate under your Contract during the  Accumulation  Phase and apply to an
Income  Plan will  determine  the amount of your  income  payments  during the
Payout Phase.

      The timeline below illustrates how you might use your Contract.


<TABLE>
<S>                 <C>                                  <C>                  <C>            <C>                   <C>
 ISSUE                                                   Payout Start
 DATE               Accumulation Phase                        Date            PAYOUT PHASE
 *-------------------------------------------------------------()-----------------------------------()------------------?---------
                   You save for retirement

You buy                                                  You elect to receive                You can receive       Or you can
a Contract                                               income payments or                  income                receive income
                                                         receive a lump sum                  payments for a        payments
                                                         payment                             set period            for life
</TABLE>


      As the Contract  owner,  you  exercise all of the rights and  privileges
provided by the  Contract.  If you die, any  surviving  Contract  owner or, if
there is none,  the  BENEFICIARY  will  exercise  the  rights  and  privileges
provided by the Contract.  SEE "The Contract." In addition,  if you die before
the Payout Start Date, we will pay a death  benefit to any surviving  Contract
owner, or if there is none, to your Beneficiary. SEE "Death Benefits."

      Please call us at  1-800-654-2397 if you have any question about how the
Contract works.


                                      6

<PAGE>

EXPENSE TABLE

The table below lists the expenses  that you will bear  directly or indirectly
when you buy a Contract. The table and the examples that follow do not reflect
premium  taxes  that may be imposed by the state  where you  reside.  For more
information about Variable Account expenses,  see "Expenses,"  below. For more
information  about  Portfolio  expenses,  please  refer  to  the  accompanying
prospectus for the Fund.

 -----------------------------------------------------------------------------
CONTRACT OWNER TRANSACTION EXPENSES

Withdrawal Charge (as a percentage of purchase payments)*

Number of Complete Years
Since We Received the Purchase
Payment Being Withdrawn:           0      1      2      3      4     5      6+

Applicable Charge:                 6%     5%     4%     3%     2%    1%     0%

Annual Contract Maintenance Charge......................................$30.00
Transfer Fee..............................................................None

      * Each Contract  Year,  you may make one withdrawal of up to 10% of your
        aggregate purchase payments,  excluding those made one year before the
        withdrawal,  without  incurring a withdrawal  charge.  The  cumulative
        total of all  withdrawal  charges is guaranteed  never to exceed 7% of
        your purchase payments (not including  earnings  attributable to these
        payments).

VARIABLE ACCOUNT ANNUAL EXPENSES
(as a percentage of daily net asset value deducted from each Variable Sub-
Accounts)
Mortality and Expense Risk Charge........................................1.00%
       Total Variable Account Annual Expenses............................1.00%


                                      7

<PAGE>

  PORTFOLIO ANNUAL EXPENSES (After Voluntary Reductions and Reimbursements)
           (as a percentage of Portfolio average daily net assets)


<TABLE>
<CAPTION>
                                                              Total
                                                            Portfolio
                                Management       Other        Annual
Portfolio                          Fees        Expenses      Expenses
<S>                                <C>           <C>          <C>  
Money Market                       0.50%         0.02%        0.52%
Quality Income Plus                0.50%         0.02%        0.52%
High Yield                         0.50%         0.03%        0.53%
Utilities                          0.65%         0.02%        0.67%
Income Builder                     0.75%         0.06%        0.81%
Dividend Growth                    0.52%         0.01%        0.53%
Capital Growth                     0.65%         0.05%        0.70%
Global Dividend Growth             0.75%         0.09%        0.84%
European Growth                    0.99%         0.12%        1.11%
Pacific Growth                     0.99%         0.52%        1.51%
Equity(1)                          0.50%         0.02%        0.52%
Strategist                         0.50%         0.02%        0.62%
<FN>
(1)     As of the close of business on March 19, 1999,  the Capital  Appreciation
Portfolio merged with and into the Equity Portfolio.
</FN>
</TABLE>


                                      8

<PAGE>

EXAMPLE 1

The  example  below shows the dollar  amount of  expenses  that you would bear
directly or indirectly if you:

      *     invested $1,000 in a Variable Sub-Account,
      *     earned a 5% annual return on your investment, and
      *     surrendered your Contract , or you began receiving income payments
            for a specified period of less than 120 months, at the end of each
            time period.

THE EXAMPLE DOES NOT INCLUDE ANY TAXES, TAX PENALTIES OR WITHDRAWAL CHARGE YOU
MAY BE REQUIRED TO PAY IF YOU SURRENDER YOUR CONTRACT.


VARIABLE SUB-ACCOUNT         1 Year         3 Years       5 Years     10 Years
- --------------------         ------         -------       -------     --------
Money Market                  $63            $80            $ 97        $188
Quality Income Plus           $63            $80            $ 97        $188
High Yield                    $63            $81            $ 98        $189
Utilities                     $64            $85            $105        $205
Income Builder                $66            $89            $112        $220
Dividend Growth               $63            $81            $ 98        $189
Capital Growth                $65            $86            $107        $208
Global Dividend Growth        $66            $90            $114        $223
European Growth               $69            $98            $128        $252
Pacific Growth                $73           $110            $148        $293
Equity                        $63            $80            $ 97        $188
Strategist                    $63            $80            $ 97        $188



EXAMPLE 2

Same assumptions as Example 1 above,  except that you decided not to surrender
your Contract,  or you began receiving  income payments for a specified period
of at least 120 months at the end of each period.

VARIABLE SUB-ACCOUNT       1 Year         3 Years         5 Years       10 Years
- --------------------       ------         -------         -------       --------
Money Market                  $16            $50            $ 86          $188
Quality Income Plus           $16            $50            $ 86          $188
High Yield                    $16            $51            $ 87          $189
Utilities                     $18            $55            $ 94          $205
Income Builder                $19            $59            $102          $220
Dividend Growth               $16            $51            $ 87          $189
Capital Growth                $18            $56            $ 96          $208
Global Dividend Growth        $19            $60            $103          $223
European Growth               $22            $69            $117          $252
Pacific Growth                $26            $81            $138          $293
Equity                        $16            $50            $ 86          $188
Strategist                    $16            $50            $ 86          $188


PLEASE REMEMBER THAT YOU ARE LOOKING AT EXAMPLES AND NOT A  REPRESENTATION  OF
PAST OR FUTURE  EXPENSES.  YOUR ACTUAL  EXPENSES  MAY BE LOWER OR GREATER THAN
THOSE SHOWN ABOVE. SIMILARLY, YOUR RATE OF RETURN MAY BE LOWER OR GREATER THAN
5%, WHICH IS NOT GUARANTEED.  [TO REFLECT THE CONTRACT  MAINTENANCE  CHARGE IN
THE  EXAMPLES,  WE  ESTIMATED AN  EQUIVALENT  PERCENTAGE  CHARGE,  BASED ON AN
ASSUMED AVERAGE CONTRACT SIZE OF $47,771.]


                                      9

<PAGE>

FINANCIAL INFORMATION

To measure the value of your  investment in the Variable  Sub-Accounts  during
the  Accumulation  Phase,  we use a unit of measure we call the  "ACCUMULATION
UNIT." Each Variable  Sub-Account  has a separate  value for its  Accumulation
Units we call "ACCUMULATION UNIT VALUE."  Accumulation Unit Value is analogous
to, but not the same as, the share price of a mutual fund.

Attached as Appendix A to this prospectus are tables showing the  Accumulation
Unit Values of each Variable  Sub-Account since 1989, or inception,  if later.
To obtain a fuller  picture of each Variable  Sub-Account's  finances,  please
refer  to  the  Variable  Account's  financial  statements  contained  in  the
Statement of Additional  Information.  The financial  statements of Northbrook
also appear in the Statement of Additional Information.



                                      10

<PAGE>

THE CONTRACT


CONTRACT OWNER

The Variable  Annuity I is a contract  between you,  the Contract  owner,  and
Northbrook,  a life insurance company. As the Contract owner, you may exercise
all of the rights and privileges  provided to you by the Contract.  That means
it is up to you to select or change (to the extent permitted):

      *     the investment  alternatives  during the  Accumulation  and Payout
            Phases,
      *     the amount and timing of your purchase payments and withdrawals,
      *     the programs you want to use to invest or withdraw money,
      *     the  income  payment  plan you want to use to  receive  retirement
            income,
      *     the Annuitant  (either yourself or someone else) on whose life the
            income payments will be based,
      *     the  Beneficiary  or  Beneficiaries  who will receive the benefits
            that the Contract provides when you die, and
      *     any other rights that the Contract provides.

If you die, any surviving  Contract owner, or , if none, the Beneficiary  will
exercise the rights and privileges provided to them by the Contract.

You can use the Contract with or without a QUALIFIED PLAN. A "qualified  plan"
is a  personal  retirement  savings  plan,  such  as an IRA  or  tax-sheltered
annuity,  that meets the requirements of the Internal Revenue Code.  Qualified
plans may limit or modify your rights and  privileges  under the Contract.  We
use the term "Qualified Contract" to refer to a Contract used with a qualified
plan. See "Qualified Plans" on page __.


ANNUITANT

The  Annuitant is the  individual  whose life span we use to determine  income
payments as well as the latest Payout Start Date.  You initially  designate an
Annuitant in your application.


BENEFICIARY

The  Beneficiary  is the person who may elect to receive the death  benefit or
become the new Contract owner if the sole surviving Contract owner dies before
the Payout Start Date.  If the sole  surviving  Contract  owner dies after the
Payout Start Date, the Beneficiary will receive any guaranteed income payments
scheduled to continue.

You may name one or more Beneficiaries when you apply for a Contract.  You may
name  different  Beneficiaries  in the  event  of  the  Owner's  death  or the
Annuitant's  death. You may change or add  Beneficiaries at any time while you
or the Annuitant,  as applicable,  is living by writing to us, unless you have
designated an irrevocable Beneficiary. We will provide a change of Beneficiary
form to be signed and filed with us. Any change will be  effective at the time
you  sign  the  written  notice,  whether  or not  you or  the  Annuitant,  as
applicable,  is living  when we receive  the  notice.  Until we  receive  your
written  notice to change a  Beneficiary,  we are entitled to rely on the most
recent  Beneficiary  information in our files. We will not be liable as to any
payment or settlement made prior to receiving the written notice. Accordingly,
if you wish to change your Beneficiary, you should deliver your written notice
to us promptly.

If you did  not  name a  Beneficiary  or,  unless  otherwise  provided  in the
Beneficiary designation,  if a named Beneficiary is no longer living and there
are no other surviving Beneficiaries,  the new Beneficiary will be you or your
estate.

If more than one Beneficiary survives you, or the Annuitant, as applicable, we
will divide the death benefit among your Beneficiaries  according to your most
recent written instructions. If you have not given us written instructions, we
will pay the death benefit in equal amounts to the surviving Beneficiaries.


                                      11

MODIFICATION OF THE CONTRACT

Only a  Northbrook  officer may approve a change in or waive any  provision of
the Contract.  Any change or waiver must be in writing. None of our agents has
the authority to change or waive the  provisions  of the Contract.  We may not
change the terms of the Contract  without your consent,  except to conform the
Contract  to  applicable  law or changes  in the law.  If a  provision  of the
Contract is inconsistent with state law, we will follow state law.


ASSIGNMENT

You may assign  the  Contract  prior to the  Payout  Start Date and during the
Annuitant's  life,  subject to the rights of any irrevocable  Beneficiary.  No
Beneficiary  may assign  benefits under the Contract until they are payable to
the Beneficiary.  We will not be bound by any assignment until you sign it and
file it with us. We are not  responsible  for the validity of any  assignment.
Federal law prohibits or restricts the assignment of benefits under many types
of  retirement  plans  and the  terms of such  plans  may  themselves  contain
restrictions  on  assignments.  An assignment  may also result in taxes or tax
penalties.  YOU SHOULD  CONSULT WITH AN ATTORNEY  BEFORE TRYING TO ASSIGN YOUR
CONTRACT.


                                      12

<PAGE>

PURCHASES


MINIMUM PURCHASE PAYMENTS

You may make additional purchase payments of at least $25 at any time prior to
the Payout  Start  Date.  We reserve the right to limit the amount of purchase
payments we will accept.


AUTOMATIC ADDITIONS PROGRAM

You may make  subsequent  purchase  payments of at least $25 by  automatically
transferring  amounts  from  your bank  account  or your  Dean  Witter  Active
AssetsTM  Account.  Please consult your Morgan  Stanley Dean Witter  Financial
Advisor for details.


ALLOCATION OF PURCHASE PAYMENTS

At the time you apply for a Contract,  you must  decide how to  allocate  your
purchase  payments  among the  investment  alternatives.  The  allocation  you
specify on your  application  will be effective  immediately.  All allocations
must be in whole percents that total 100% or in whole dollars. The minimum you
may  allocate  to any  investment  alternative  is $100.  You can change  your
allocations by notifying us in writing.

We  will  allocate  your  purchase  payments  to the  investment  alternatives
according to your most recent  instructions on file with us. Unless you notify
us in  writing  otherwise,  we  will  allocate  subsequent  purchase  payments
according to the allocation for the previous purchase payment.  We will effect
any change in allocation instructions at the time we receive written notice of
the change in good order.

We will credit  additional  purchase  payments to the Contract at the close of
the business day on which we receive the purchase  payment at our home office.
We are open for  business  each day Monday  through  Friday  that the New York
Stock Exchange is open for business. We also refer to these days as "VALUATION
DATES."  Our  business  day closes  when the New York Stock  Exchange  closes,
usually 4 p.m. Eastern Time (3 p.m. Central Time). If we receive your purchase
payment after 3 p.m.  Central Time on any Valuation  Date, we will credit your
purchase  payment  using the  Accumulation  Unit  Values  computed on the next
Valuation Date.


                                      13

<PAGE>

CONTRACT VALUE


Your Contract Value at any time during the Accumulation  Phase is equal to the
sum of the value of your Accumulation  Units in the Variable  Sub-Accounts you
have selected, plus the value of your investment in the Fixed Account.


ACCUMULATION UNITS

To determine the number of Accumulation Units of each Variable  Sub-Account to
allocate to your  Contract,  we divide (i) the amount of the purchase  payment
you have  allocated to a Variable  Sub-Account by (ii) the  Accumulation  Unit
Value  of that  Variable  Sub-Account  next  computed  after we  receive  your
payment.  For example, if we receive a $10,000 purchase payment allocated to a
Variable  Sub-Account when the Accumulation  Unit Value for the Sub-Account is
$10, we would credit 1,000 Accumulation Units of that Variable  Sub-Account to
your Contract.


ACCUMULATION UNIT VALUE

As a general matter, the Accumulation Unit Value for each Variable Sub-Account
will rise or fall to reflect:

      *     changes in the share price of the  Portfolio in which the Variable
            Sub-Account invests, and

      *     the deduction of amounts reflecting the mortality and expense risk
            charge and any provision for taxes that have accrued since we last
            calculated the Accumulation Unit Value.

We determine contract maintenance charges, and withdrawal charges,  separately
for each Contract.  They do not affect  Accumulation Unit Value.  Instead,  we
obtain payment of those charges by redeeming  Accumulation  Units. For details
on how we calculate  Accumulation Unit Value, please refer to the Statement of
Additional Information.

We determine a separate  Accumulation Unit Value for each Variable Sub-Account
on each Valuation Date.

YOU  SHOULD  REFER  TO THE  PROSPECTUSES  FOR THE  FUND  THAT  ACCOMPANY  THIS
PROSPECTUS  FOR A DESCRIPTION  OF HOW THE ASSETS OF EACH PORTFOLIO ARE VALUED,
SINCE THAT DETERMINATION  DIRECTLY BEARS ON THE ACCUMULATION UNIT VALUE OF THE
CORRESPONDING VARIABLE SUB-ACCOUNT AND, THEREFORE, YOUR CONTRACT VALUE.


                                      14

<PAGE>

INVESTMENT ALTERNATIVES:  THE VARIABLE SUB-ACCOUNTS


You may allocate  your  purchase  payments to up to 12 Variable  Sub-Accounts.
Each Variable Sub-Account invests in the shares of a corresponding  Portfolio.
Each Portfolio has its own investment  objective(s)  and policies.  We briefly
describe the Portfolios below.

For more complete  information  about each Portfolio,  including  expenses and
risks  associated  with  the  Portfolio,  please  refer  to  the  accompanying
prospectus  for the Fund.  You should  carefully  review  the Fund  prospectus
before allocating amounts to the Variable Sub-Accounts.

<TABLE>
<CAPTION>
 -----------------------------------------------------------------------------------------------------------------------
                                                                                                     Investment Adviser:
PORTFOLIO:                           Each Portfolio Seeks:

 -----------------------------------------------------------------------------------------------------------------------
Morgan Stanley Dean Witter Variable Investment Series

 -----------------------------------------------------------------------------------------------------------------------
<S>                                  <C>                                                                 <C>
Money Market                         Portfolio High current income, preservation of capital, and
                                     liquidity

Quality Income Plus Portfolio        High current income and, as a secondary objective,  capital
                                     appreciation when consistent with its primary objective

High Yield Portfolio                 High current income and, as a secondary objective,  capital
                                     appreciation when consistent with its primary objective

Utilities Portfolio                  Current income and long-term growth of income and capital

Income Builder Portfolio             Reasonable income and, as a secondary objective,  growth of         Morgan Stanley
                                     capital                                                             Dean Witter
                                                                                                         Advisors, Inc.
Dividend Growth Portfolio            Reasonable  current  income and long-term  growth of income
                                     and capital

Capital Growth Portfolio             Long-term capital growth

Global Dividend Growth Portfolio     Reasonable  current  income and long-term  growth of income
                                     and capital

European Growth Portfolio            To maximize the capital appreciation on its investments

Pacific Growth Portfolio             To maximize the capital appreciation of its investments

Equity Portfolio                     Growth of capital  and,  as a secondary  objective,  income
                                     when consistent with its primary objective

Strategist Portfolio                 High total investment return
</TABLE>


AMOUNTS YOU ALLOCATE TO VARIABLE  SUB-ACCOUNTS  MAY GROW IN VALUE,  DECLINE IN
VALUE, OR GROW LESS THAN YOU EXPECT,  DEPENDING ON THE INVESTMENT  PERFORMANCE
OF THE PORTFOLIOS IN WHICH THOSE VARIABLE  SUB-ACCOUNTS  INVEST.  YOU BEAR THE
INVESTMENT  RISK  THAT  THE  PORTFOLIOS   MIGHT  NOT  MEET  THEIR   INVESTMENT
OBJECTIVES.  SHARES OF THE PORTFOLIOS ARE NOT DEPOSITS,  OR OBLIGATIONS OF, OR
GUARANTEED OR ENDORSED BY ANY BANK AND ARE NOT INSURED BY THE FEDERAL  DEPOSIT
INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD OR ANY OTHER AGENCY.


                                      15

<PAGE>

INVESTMENT ALTERNATIVES : THE FIXED ACCOUNT


You may  allocate  all or a portion  of your  purchase  payments  to the Fixed
Account. The Fixed Account supports our insurance and annuity obligations. The
Fixed  Account  consists of our general  assets other than those in segregated
asset  accounts.  We have sole  discretion  to invest  the assets of the Fixed
Account,  subject  to  applicable  law.  Any money you  allocate  to the Fixed
Account  does not entitle  you to share in the  investment  experience  of the
Fixed Account.

We bear the  investment  risk for all amounts  that you  allocate to the Fixed
Account.  That is because we credit  amounts  that you  allocate  to the Fixed
Account at a net effective rate of at least 4.0% per year. We may use a higher
rate that we determine  periodically.  We credit this rate,  regardless of the
actual investment experience of the Fixed Account.

Money that you deposit in the Fixed account earns the interest rate that is in
effect at the time of your  allocation  or  transfer  until the first  renewal
date.  The  first  renewal  date  is  January  1  following  the  date of your
allocation  or transfer of money into the Fixed  Account.  Subsequent  renewal
dates are on anniversaries of the first renewal date. On or about each renewal
date, we will notify you of the interest  rate for the next calendar  year. We
may declare more than one interest  rate for  different  monies based on their
date of allocation or transfer to the Fixed Account.


                                      16

<PAGE>

INVESTMENT ALTERNATIVES:  TRANSFERS


TRANSFERS DURING THE ACCUMULATION PHASE

During the  Accumulation  Phase,  you may  transfer  Contract  Value among the
investment  alternatives.  You may request transfers in writing on a form that
we provide or by telephone  according to the procedure  described  below.  The
minimum  amount  that you may  transfer  is $100 or the  total  amount  in the
investment alternative, whichever is less.

You may transfer  amounts from the Variable  Sub-Accounts to the Fixed Account
only once every 30 days. If you invested amounts in the Fixed Account prior to
its revision, you may transfer these amounts only once every six months.

We limit the maximum  amount which may be  transferred  from the revised Fixed
Account to the Variable  Account in any calendar year to the greater of $1,000
or 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).

We will process  transfer  requests that we receive  before 3:00 p.m.  Central
Time on any Valuation Date using the  Accumulation  Unit Values for that Date.
We will process requests completed after 3:00 p.m. on any Valuation Date using
the  Accumulation  Unit Values for the next  Valuation  Date.  We may restrict
transfers  to once  every 30 days.  If we do so,  we will give you at least 30
days' notice of that restriction.

We reserve the right to waive any transfer restrictions.


TRANSFERS DURING THE PAYOUT PHASE

During  the  Payout  Phase,   you  may  make  transfers   among  the  Variable
Sub-Accounts to change the relative weighting of the Variable  Sub-Accounts on
which your variable income payments will be based. In addition,  you will have
a limited ability to make transfers from the Variable Sub-Accounts to increase
the proportion of your income  payments  consisting of fixed income  payments.
You may not,  however,  convert  any  portion of your  right to receive  fixed
income payments into variable income payments.

You may not make any  transfers  for the first 6 months after the Payout Start
Date.  Thereafter,  you may make transfers among the Variable  Sub-Accounts or
make  transfers from the Variable  Sub-Accounts  to increase the proportion of
your income payments consisting of fixed income payments.  Your transfers must
be at least 6 months apart.


TELEPHONE TRANSFERS

You may make  transfers by telephone  by calling  1-800-654-2397  if you first
send  us a  completed  authorization  form.  The cut off  time  for  telephone
transfer  requests is 3:00 p.m.  Central  time. In the event that the New York
Stock Exchange closes early,  i.e.,  before 3:00 p.m.  Central Time, or in the
event that the Exchange closes early for a period of time but then reopens for
trading on the same day, we will process telephone transfer requests as of the
close of the  Exchange on that  particular  day. We will not accept  telephone
requests  received at any telephone  number other than the number that appears
in this paragraph or received after the close of trading on the Exchange.

We may suspend,  modify or terminate the telephone  transfer  privilege at any
time without notice.

We use  procedures  that we  believe  provide  reasonable  assurance  that the
telephone transfers are genuine. For example, we tape telephone  conversations
with  persons  purporting  to  authorize  transfers  and  request  identifying
information.


                                      17

<PAGE>

Accordingly,  we disclaim any liability for losses  resulting  from  allegedly
unauthorized telephone transfers.  However, if we do not take reasonable steps
to help ensure that a telephone  authorization  is valid, we may be liable for
such losses.


DOLLAR COST AVERAGING PROGRAM

Under the Dollar Cost Averaging Program, you may automatically  transfer a set
amount at  regular  intervals  during  the  Accumulation  Phase from the Money
Market Sub-Account to any other Variable  Sub-Account.  Transfers made through
Dollar Cost Averaging must be for $100 or more.

The theory of dollar  cost  averaging  is that if  purchases  of equal  dollar
amounts are made at fluctuating  prices,  the aggregate  average cost per unit
will be less than the average of the unit prices on the same  purchase  dates.
However, participation in this Program does not assure you of a greater profit
from your  purchases  under the  Program  nor will it prevent  or  necessarily
reduce losses in a declining market.


                                      18

<PAGE>

EXPENSES


As a Contract owner,  you will bear,  directly or indirectly,  the charges and
expenses described below.


CONTRACT MAINTENANCE CHARGE

During the Accumulation Phase, on each Contract Anniversary,  we will deduct a
$30 contract  maintenance  charge from your  Contract  Value  invested in each
Variable  Sub-Account in proportion to the amount invested.  During the Payout
Phase, we will deduct the charge  proportionately from each income payment. If
you surrender  your  Contract,  we will deduct the full  contract  maintenance
charge.

The charge is to compensate us for the cost of administering the Contracts and
the Variable  Account.  Maintenance costs include expenses we incur in billing
and collecting  purchase payments;  keeping records;  processing death claims,
cash  withdrawals,   and  policy  changes;   proxy   statements;   calculating
Accumulation Unit Values and income payments;  and issuing reports to Contract
owners and regulatory agencies. We cannot increase the charge.


MORTALITY AND EXPENSE RISK CHARGE

We deduct a mortality and expense risk charge daily at an annual rate of 1.00%
of  the  average   daily  net  assets  you  have   invested  in  the  Variable
Sub-Accounts.  The  mortality and expense risk charge is for all the insurance
benefits  available  with your  Contract  (including  our guarantee of annuity
rates and the death benefits),  for certain expenses of the Contract,  and for
assuming  the  risk  (expense  risk)  that  the  current  charges  will not be
sufficient in the future to cover the cost of administering  the Contract.  If
the charges under the Contract are not sufficient, then we will bear the loss.

We guarantee the mortality and expense risk charge and we cannot  increase it.
We assess the  mortality  and  expense  risk  charge  during  both  during the
Accumulation Phase and the Payout Phase.


WITHDRAWAL CHARGE

We may  assess  a  withdrawal  charge  of 6% of the  purchase  payment(s)  you
withdraw if the amount being  withdrawn  has been invested in the Contract for
less than 1 year.  The charge  declines  annually to 0% after 6 complete years
from the day we receive  the  purchase  payment  being  withdrawn.  A schedule
showing  how the charge  declines  is shown on page ____,  above.  During each
Contract Year,  you can make one withdrawal up to 10% of the aggregate  amount
of your purchase payments,  excluding those made less than one year before the
withdrawal,  without  paying the  charge.  Unused  portions  of this 10% "Free
Withdrawal  Amount"  are not carried  forward to future  Contract  Years.  The
maximum portion of the Free Withdrawal  Amount you may withdraw from the Fixed
Account  is  limited to the  proportion  that your value in the Fixed  Account
bears to your Total Contract Value.

We will deduct withdrawal  charges,  if applicable,  from the amount paid. For
purposes of the withdrawal  charge,  we will treat  withdrawals as coming from
the oldest purchase payments first.  However, for federal income tax purposes,
please note that  withdrawals  are considered to have come first from earnings
which means you pay taxes on the earnings portion of your withdrawal.

In  certain  cases,   we  may  deduct  a  withdrawal   charge  when  you  take
distributions  required by federal tax law (see the  Statement  of  Additional
Information  for "IRS Required  Distribution  at Death Rules").  We may deduct
withdrawal  charges from the Contract Value you apply to an Income Plan with a
specified period of less than 120 months.


                                      19

<PAGE>

We  use  the  amounts  obtained  from  the  withdrawal  charge  to  pay  sales
commissions  and other  promotional or distribution  expenses  associated with
marketing the  Contracts.  To the extent that the  withdrawal  charge does not
cover all sales commissions and other promotional or distribution expenses, we
may use any of our  corporate  assets,  including  potential  profit which may
arise from the  mortality  and expense risk charge or any other charges or fee
described above, to make up any difference.

Withdrawals  also may be subject to tax  penalties  or income tax.  You should
consult your own tax counsel or other tax advisers regarding any withdrawals.


PREMIUM TAXES

Some states and other  governmental  entities  (E.G.,  municipalities)  charge
premium taxes or similar taxes.  We are responsible for paying these taxes and
will deduct them from your  Contract  Value.  Some of these taxes are due when
the  Contract  is issued,  others are due when income  payments  begin or upon
surrender.  Our current practice is not to charge anyone for these taxes until
income payments begin or when a total withdrawal occurs including payment upon
death.  We may some time in the future  discontinue  this  practice and deduct
premium taxes from the purchase  payments.  Premium taxes generally range from
0% to 4%, depending on the state.

At the Payout  Start Date,  we deduct the charge for  premium  taxes from each
investment  alternative in the proportion  that the Contract  owner's value in
the investment alternative bears to the total Contract Value.


DEDUCTION FOR VARIABLE ACCOUNT INCOME TAXES

We are not  currently  maintaining  a  provision  for  taxes.  In the  future,
however,  we may establish a provision for taxes if we determine,  in our sole
discretion,  that we will  incur a tax as a  result  of the  operation  of the
Variable  Account.  We will  deduct  for any taxes we incur as a result of the
operation  of the  Variable  Account,  whether  or not  we  previously  made a
provision for taxes and whether or not it was sufficient. Our status under the
Internal  Revenue  Code is briefly  described in the  Statement of  Additional
Information.


OTHER EXPENSES

Each Portfolio  deducts advisory fees and other expenses from its assets.  You
indirectly  bear the charges and expenses of the  Portfolios  whose shares are
held by the Variable  Sub-Accounts.  These fees and expenses are  described in
the accompanying  prospectus for the Fund. For a summary of current  estimates
of  those  charges  and  expenses,   see  pages  ___  above.  We  may  receive
compensation  from the  investment  adviser or  administrator  of the Fund for
administrative services we provide to the Fund.


                                      20

<PAGE>

ACCESS TO YOUR MONEY


You can withdraw some or all of your  Contract  Value at any time prior to the
Payout Start Date.  Withdrawals also are available under limited circumstances
on or after the Payout Start Date. See "Income Plans" on page __.

The amount  payable upon  withdrawal is the Contract Value next computed after
we  receive  the  request  for a  withdrawal  at our  home  office,  less  any
withdrawal  charges,  contract  maintenance  charges,  income tax withholding,
penalty tax, and any premium taxes.

You can withdraw  money from the  Variable  Account or the Fixed  Account.  To
complete  a partial  withdrawal  from the  Variable  Account,  we will  cancel
Accumulation  Units in an amount equal to the  withdrawal  and any  applicable
withdrawal charge and premium taxes. We will pay withdrawals from the Variable
Account within 7 days of receipt of the request,  subject to  postponement  in
certain circumstances.

You must  name the  investment  alternative  from  which  you are  taking  the
withdrawal.  If none is named,  then the withdrawal  request is incomplete and
cannot be honored.

In general, you must withdraw at least $500 at a time. You also may withdraw a
lesser  amount if you are  withdrawing  your  entire  interest  in a  Variable
Sub-Account.


AUTOMATIC INCOME WITHDRAWALS

You may also take partial  withdrawal  automatically  through Automatic Income
Withdrawals.  You may request Automatic Income  Withdrawals of $100 or more at
any time before the Payout Starting Date. Please consult with your Dean Witter
Financial Advisor for detailed information about Automatic Income Withdrawals.

If you request a total  withdrawal,  you must  return your  Contract to us. We
also will deduct a contract maintenance charge of $30.


POSTPONEMENT OF PAYMENTS

We may postpone the payment of any amounts due from the Variable Account under
the Contract if:

      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 SEC; or

      3)    The SEC permits delay for your protection.

In addition,  we may delay payments or transfers from the Fixed Account for up
to 6 months or  shorter  period if  required  by law.  If we delay  payment or
transfer  for 30 days or more,  we will pay  interest as required by law.  Any
interest would be payable from the date we receive the  withdrawal  request to
the date we make the payment or transfer.


MINIMUM CONTRACT VALUE

If your request for a partial  withdrawal  would reduce your Contract Value to
less than $500, we may treat it as a request to withdraw your entire  Contract
Value.  Your  Contract  will  terminate if you  withdraw all of your  Contract
Value. We will,  however,  ask you to confirm your  withdrawal  request before


                                      21

<PAGE>

terminating your Contract.  If we terminate your Contract,  we will distribute
to you its Contract Value, less withdrawal and other applicable  charges,  and
premium taxes.


                                      22

<PAGE>

INCOME PAYMENTS


PAYOUT START DATE

You select the Payout Start Date in your application. The Payout Start Date is
the day that money is applied to an Income Plan. The Payout Start Date must be
no later than the first day of the calendar month after the Annuitant  reaches
age 85, or the 10th Contract Anniversary, if later.

You may change the Payout Start Date at any time by notifying us in writing of
the change at least 30 days before the scheduled  Payout Start Date.  Absent a
change, we will use the Payout Start Date in your Contract.


INCOME PLANS

You may choose and change  your choice of Income Plan until 30 days before the
Payout Start Date.  If you do not select an Income  Plan,  we will make income
payments in  accordance  with Income Plan 1 with  guaranteed  payments  for 10
years.

Three  Income Plans are  available  under the  Contract.  Each is available to
provide:

      *     fixed income payments;
      *     variable income payments; or
      *     a combination of the two.

The three Income Plans are:

      INCOME  PLAN 1 -- LIFE  INCOME WITH  PAYMENTS  GUARANTEED  FOR 10 YEARS.
      Under this plan, we make periodic  income  payments for at least as long
      as the Annuitant lives. If the Annuitant dies before we have made all of
      the guaranteed income payments, we will continue to pay the remainder of
      the guaranteed income payments as required by the Contract.

      INCOME PLAN 2 -- JOINT AND  SURVIVOR  LIFE INCOME.  Under this plan,  we
      make periodic income payments for as long as either the Annuitant or the
      joint Annuitant is alive.

      INCOME PLAN 3 -- GUARANTEED PAYMENTS FOR A SPECIFIED PERIOD.  Under this
      plan, we make periodic  income  payments for the period you have chosen.
      These  payments  do not depend on the  Annuitant's  life.  A  withdrawal
      charge may apply if the  specified  period is less than 120  months.  We
      will deduct the mortality  and expense risk charge from variable  income
      payments even though we may not bear any mortality risk.

The length of any guaranteed  payment  period under your selected  Income Plan
generally will affect the dollar amounts of each income payment.  As a general
rule,  longer  guarantee  periods result in lower income  payments,  all other
things being equal.  For example,  if you choose an Income Plan with  payments
that depend on the life of the Annuitant but with no minimum  specified period
for guaranteed  payments,  the income payments  generally will be greater than
the income  payments made under the same Income Plan with a minimum  specified
period for guaranteed payments.

If you choose Income Plan 1 or 2, or, if available,  another  Income Plan with
payments that continue for the life of the  Annuitant or joint  Annuitant,  we
will require proof of age and sex of the Annuitant or joint  Annuitant  before
starting income payments,  and proof that the Annuitant or joint Annuitant are
alive  before  we make each  payment.  If you  choose  an Income  Plan with no
guaranteed  payments,  it is possible for the payee to receive only one income
payment  if the  Annuitant  and any joint  Annuitant  die prior to the  second
income  payment,  or two income payments if they die prior to the third income
payment, and so on.


                                      23

<PAGE>

Generally,  you may not make  withdrawals  after the Payout  Start  Date.  One
exception to this rule applies if you are receiving  variable  income payments
that do not depend on the life of the Annuitant (such as under Income Plan 3).
In that case you may  terminate  the  Variable  Account  portion of the income
payments at any time and receive a lump sum equal to the present  value of the
remaining variable payments due. A withdrawal charge may apply. We also assess
applicable premium taxes against all income payments.

We may make other Income Plans  available.  You may obtain  information  about
them by writing or calling us.

You must apply at least the Contract  Value in the Fixed Account on the Payout
Start Date to fixed income payments.  If you wish to apply any portion of your
Fixed Account  balance to provide  variable income  payments,  you should plan
ahead and  transfer  that  amount to the  Variable  Sub-Accounts  prior to the
Payout Start Date. If you do not tell us how to allocate  your Contract  Value
among fixed and variable income payments, we will apply your Contract Value in
the Variable  Account to variable  income  payments and your Contract Value in
the Fixed Account to fixed income payments.

We will apply your Contract Value,  less applicable taxes, to your Income Plan
on the Payout  Start Date.  If the amount  available  to apply under an Income
Plan is less than  $2,000 or not enough to  provide  an initial  payment of at
least $20, and state law permits, we may:

      *     pay you the Contract Value,  less any applicable  taxes, in a lump
            sum instead of the periodic payments you have chosen, or

      *     reduce the frequency of your payments so that each payment will be
            at least $20.


VARIABLE INCOME PAYMENTS

The  amount of your  variable  income  payments  depends  upon the  investment
results of the Variable  Sub-Accounts  you select,  the premium taxes you pay,
the age and sex of the Annuitant, and the Income Plan you choose. We guarantee
that the payments will not be affected by (a) actual mortality  experience and
(b) the amount of our administration expenses.

We cannot  predict the total amount of your  variable  income  payments.  Your
variable income payments may be more or less than your total purchase payments
because (a) variable income  payments vary with the investment  results of the
underlying Portfolios; and (b) the Annuitant could live longer or shorter than
we expect based on the tables we use.

In  calculating  the amount of the periodic  payments in the annuity tables in
the  Contract,  we  assumed  an annual  investment  rate of 4%. If actual  net
investment  return of the Variable  Sub-Accounts  you choose is less than this
assumed  investment  rate,  then the  dollar  amount of your  variable  income
payments will  decrease.  The dollar amount of your variable  income  payments
will  increase,  however,  if the actual net  investment  return  exceeds  the
assumed  investment  rate. The dollar amount of the variable  income  payments
stays level if the net investment  return equals the assumed  investment rate.
You should consult the Statement of Additional  Information  for more detailed
information as to how we determine variable income payments.


FIXED INCOME PAYMENTS

We guarantee  income  payment  amounts  derived from the Fixed Account for the
duration of the Income Plan. We calculate the fixed income payments by:

      *     deducting any applicable premium tax; and

      *     applying  the   resulting   amount  to  the  greater  of  (a)  the
            appropriate  value from the income  payment table in your Contract
            or (b) such other value as we are offering at that time.


                                      24

<PAGE>

We may defer making  fixed  income  payments for a period of up to 6 months or
any shorter  time state law may require.  If we defer  payments for 30 days or
more,  we will pay  interest  as  required by law from the date we receive the
withdrawal request to the date we make payment.


CERTAIN EMPLOYEE BENEFIT PLANS

The Contracts  offered by this  prospectus  contain income payment tables that
provide for  different  payments  to men and women of the same age,  except in
states that require unisex tables.  We reserve the right to use income payment
tables that do not distinguish on the basis of sex to the extent  permitted by
applicable  law.  In  certain  employment-related  situations,  employers  are
required  by law to use the same  income  payment  tables  for men and  women.
Accordingly,   if  the  Contract  is  to  be  used  in   connection   with  an
employment-related  retirement  or  benefit  plan and we do not  offer  unisex
annuity  tables in your state,  you should  consult  with legal  counsel as to
whether the purchase of a Contract is appropriate.


                                      25

<PAGE>

DEATH BENEFITS


We will pay a death benefit prior to the Payout Start Date on:

      1)    the death of any Contract owner, or
      2)    the death of the Annuitant,  if the Contract owner is not the same
            person as the Annuitant.

We  will  pay the  death  benefit  to the new  Contract  owner  as  determined
immediately  after the death.  The new  Contract  owner  would be a  surviving
Contract owner or, if none, the Beneficiary, or, if none, the Contract owner's
estate.


DEATH BENEFIT AMOUNT

Prior to the Payout Start Date,  the death benefit is equal to the greater of:
(1) the Contract Value,  and (2) sum of all purchase  payments,  less amounts,
including  withdrawal  charges,   deducted  in  connection  with  any  partial
withdrawals.  We will  calculate the value of the death benefit as of the date
we receive a complete request for payment of the death benefit.

A claim for a distribution  on death must include DUE PROOF OF DEATH.  We will
accept the following documentation as "Due Proof of Death":

      *     a certified copy of a death certificate;
      *     a certified copy of a decree of a court of competent jurisdiction
      *     as to the finding of death, or any other proof acceptable to us.


DEATH BENEFIT OPTIONS

Upon death of the Contract  owner,  the new Contract  owner  generally has the
following options:

      1)    receive the death benefit in a lump sum or apply the death benefit
            to an Income Plan; or

      2)    continue the Contract, subject to certain conditions.

Option 1 is only available if we receive Due Proof of Death within 180 days of
the date of death.  We are currently  waiving the 180 day  limitation  but may
enforce it in the future.

If Option 2 is elected,  and the new Contract owner is a natural  person,  the
following conditions apply:

      (1)   the  Contract  is  continued  subject to  charges,  including  all
            applicable withdrawal charges; and

      (2)   if the  prior  Contract  owner  was  also the  Annuitant,  the new
            Contract owner will become the new Annuitant.

A surviving spouse may continue the Contract in the  Accumulation  Phase as if
the death had not occurred. Otherwise, the new Contract owner may continue the
Contract and elect either of the following options:

      (1)   receive income payments under an Income Plan, with income payments
            beginning  within one year of the date of death.  Income  payments
            must be made over the life of the new Contract  owner, or a period
            not to exceed the life expectancy of the new Contract owner; or

      (2)   receive,  within 5 years of the date of death, the "CASH SURRENDER
            VALUE," which is the Contract Value,  less withdrawal  charges and
            taxes.


                                      26

<PAGE>

If , however, the new Contract owner is a non-natural person, the new Contract
owner has the following options when continuing the Contract:

      (1)   elect to receive the Cash  Surrender  Value  within 5 years of the
            date of death; or

      (2)   receive the Cash  Settlement  Value as a single lump sum payment 5
            years after the date of death.

Option 1 is only available if we receive Due Proof of Death within 180 days of
the date of death.  We are currently  waiving the 180 day  limitation  but may
enforce it in the future.

Please refer to your Contract for more details on the above options.

If the Annuitant  dies,  we will pay the named  Beneficiary a death benefit as
described  above,  depending  on  whether  the  Beneficiary  is a  natural  or
non-natural person. Please refer to your Contract for more details.


                                      27

<PAGE>

MORE INFORMATION


NORTHBROOK

Northbrook is the issuer of the Contract. Northbrook is an Illinois stock life
insurance  company  organized in 1978.  Northbrook  is  currently  licensed to
operate in all states (except New York), the District of Columbia,  and Puerto
Rico. We intend to offer the Contract in those  jurisdictions  in which we are
licensed.  Our home  office  is  located  at 3100  Sanders  Road,  Northbrook,
Illinois, 60062.

Northbrook is a wholly owned  subsidiary of Allstate  Life  Insurance  Company
("ALLSTATE LIFE"), an Illinois stock life insurance company.  Allstate Life is
a wholly owned  subsidiary of Allstate  Insurance  Company,  an Illinois stock
property-liability  insurance company. All of the outstanding capital stock of
Allstate Insurance Company is owned by The Allstate Corporation.

Northbrook  and Allstate Life entered into a reinsurance  agreement  effective
December 31, 1987.  Under the reinsurance  agreement,  Allstate Life reinsures
all of Northbrook's liabilities under the Contracts. The reinsurance agreement
provides us with financial  backing from Allstate Life.  However,  it does not
create a direct  contractual  relationship  between  Allstate Life and you. In
other words, the obligations of Allstate Life under the reinsurance  agreement
are to Northbrook;  Northbrook  remains the sole obligor under the Contract to
you.

Several   independent   rating  agencies  regularly  evaluate  life  insurers'
claims-paying  ability,  quality of investments,  and overall stability.  A.M.
Best  Company  assigns A+  (Superior)  to  Allstate  Life which  automatically
reinsures  all net  business of  Northbrook.  A.M.  Best  Company also assigns
Northbrook the rating of A+(r) because Northbrook  automatically reinsures all
net business with Allstate Life.  Standard & Poor's  Insurance Rating Services
assigns an AA+ (Very Strong) financial  strength rating and Moody's assigns an
Aa2 (Excellent) financial strength rating to Northbrook. Northbrook shares the
same ratings of its parent,  Allstate  Life.  These ratings do not reflect the
investment  performance  of the  Variable  Account.  We may from  time to time
advertise these ratings in our sales literature.


THE VARIABLE ACCOUNT

Northbrook established the Northbrook Variable Annuity Account on February 14,
1983.  We  have  registered  the  Variable  Account  with  the  SEC  as a unit
investment  trust.  The SEC does not supervise the  management of the Variable
Account or Northbrook.

We  own  the  assets  of the  Variable  Account.  The  Variable  Account  is a
segregated  asset account under Arizona  insurance  law. That means we account
for the Variable  Account's  income,  gains,  and losses  separately  from the
results  of our other  operations.  It also  means that only the assets of the
Variable  Account  that are in  excess  of the  reserves  and  other  Contract
liabilities  with respect to the Variable  Account are subject to  liabilities
relating to our other operations.  Our obligations arising under the Contracts
are general corporate obligations of Northbrook.

The  Variable  Account  consists  of 12 Variable  Sub-Accounts,  each of which
invests in a corresponding  Portfolio. We may add new Variable Sub-Accounts or
eliminate  one or more of them,  if we believe  marketing,  tax, or investment
conditions so warrant.  We do not guarantee the investment  performance of the
Variable Account, its Sub-Accounts or the Portfolios.  We may use the Variable
Account to fund our other annuity  contracts.  We will account  separately for
each type of annuity contract funded by the Variable Account.


                                      28

<PAGE>

THE PORTFOLIOS

DIVIDENDS  AND CAPITAL  GAIN  DISTRIBUTIONS.  We  automatically  reinvest  all
dividends and capital gains distributions from the Portfolios in shares of the
distributing Portfolio at their net asset value.

VOTING PRIVILEGES. As a general matter, you do not have a direct right to vote
the shares of the Portfolios  held by the Variable  Sub-Accounts  to which you
have  allocated  your  Contract  Value.  Under current law,  however,  you are
entitled  to give us  instructions  on how to vote  those  shares  on  certain
matters.  Based on our present view of the law, we will vote the shares of the
Portfolios that we hold directly or indirectly through the Variable Account in
accordance with  instructions that we receive from Contract owners entitled to
give such instructions.

As a general rule,  before the Payout Start Date, the Contract owner or anyone
with a voting interest is the person entitled to give voting instructions. The
number of shares that a person has a right to instruct  will be  determined by
dividing the Contract Value allocated to the applicable  Variable  Sub-Account
by the net  asset  value per share of the  corresponding  Portfolio  as of the
record date of the meeting.  After the Payout Start Date the person  receiving
income payments has the voting  interest.  The payee's number of votes will be
determined  by  dividing  the  reserves  for such  Contract  allocated  to the
applicable  Variable  Sub-Account  by the net  asset  value  per  share of the
corresponding  Portfolio  as of the  record  date of the  meeting.  The  votes
decrease as income  payments  are made and as the  reserves  for the  Contract
decrease.

We will vote shares  attributable  to Contracts for which we have not received
instructions,  as well as shares attributable to us, in the same proportion as
we vote shares for which we have  received  instructions,  unless we determine
that we may vote  such  shares in our own  discretion.  We will  apply  voting
instructions  to  abstain  on any item to be voted upon on a pro rata basis to
reduce the votes eligible to be cast.

We reserve the right to vote Portfolio  shares as we see fit without regard to
voting  instructions  to the extent  permitted by law. If we disregard  voting
instructions,  we will  include a summary of that  action and our  reasons for
that action in the next semi-annual financial report we send to you.

CHANGES IN  PORTFOLIOS.  If the shares of any of the  Portfolios are no longer
available  for  investment  by the  Variable  Account or if, in our  judgment,
further  investment  in such  shares  is no  longer  desirable  in view of the
purposes of the Contract,  we may  eliminate  that  Portfolio  and  substitute
shares of another  eligible  investment  fund. Any  substitution of securities
will comply with the  requirements  of the Investment  Company Act of 1940. We
also may add new Variable Sub-Accounts that invest in additional mutual funds.
We will notify you in advance of any change.

CONFLICTS OF INTEREST. Certain of the Portfolios sell their shares to separate
accounts   underlying  both  variable  life  insurance  and  variable  annuity
contracts.  It is  conceivable  that in the future it may be  unfavorable  for
variable  life  insurance  separate  accounts  and variable  annuity  separate
accounts to invest in the same  Portfolio.  The board of directors of the Fund
monitors for possible  conflicts among separate  accounts buying shares of the
Portfolios.  Conflicts  could  develop for a variety of reasons.  For example,
differences in treatment under tax and other laws or the failure by a separate
account to comply  with such laws  could  cause a  conflict.  To  eliminate  a
conflict,  the Fund's  board of  directors  may require a separate  account to
withdraw its participation in a Portfolio. A Portfolio's net asset value could
decrease if it had to sell investment securities to pay redemption proceeds to
a separate account withdrawing because of a conflict.


THE CONTRACT

DISTRIBUTION.  Dean Witter Reynolds Inc. ("DEAN WITTER"), located at Two World
Trade Center,  74th Floor,  New York, NY 10048,  serves as  distributor of the
Contracts.  Dean Witter is a  wholly-owned  subsidiary of Morgan  Stanley Dean
Witter & Co. Dean Witter is a registered  broker-dealer  under the  Securities
Exchange Act of 1934,  as amended and is a member of the National  Association
of  Securities  Dealers.  Dean  Witter is also  registered  with the SEC as an
investment adviser.

We may pay up to a maximum sales commission of 5.75% of purchase  payments and
an annual  sales  administration  expense of up to 0.125% of the  average  net
assets of the  Contracts  to Dean  Witter.  In  addition,  Dean Witter may pay


                                      29

<PAGE>

annually to its representatives,  from its profits an amount equal to 0.10% of
the net assets of the Variable  Account  attributable to Contracts  issued and
sold after 1984 and any subsequent additions thereon.

The General Agency Agreement between  Northbrook and Dean Witter provides that
Northbrook  will indemnify Dean Witter for certain  damages that may be caused
by actions, statements or omissions by Northbrook.

ADMINISTRATION.  We have primary  responsibility for all administration of the
Contracts and the Variable  Account.  We provide the following  administrative
services, among others:

      *     issuance of the Contracts;
      *     maintenance of Contract owner records;
      *     Contract owner services;
      *     calculation of unit values;
      *     maintenance of the Variable Account; and
      *     preparation of Contract owner reports.

We will send you Contract  statements at least annually.  You should notify us
promptly in writing of any address change. You should read your statements and
confirmations  carefully  and verify  their  accuracy.  You should  contact us
promptly  if  you  have  a  question  about  a  periodic  statement.  We  will
investigate all complaints and make any necessary  adjustments  retroactively,
but you must notify us of a potential error within a reasonable time after the
date of the questioned  statement.  If you wait too long, we reserve the right
to make the  adjustment as of the date that we receive notice of the potential
error.

We  will  also  provide  you  with  additional  periodic  and  other  reports,
information and prospectuses as may be required by federal securities laws.


QUALIFIED PLANS

If you use the Contract with a qualified  plan, the plan may impose  different
or additional conditions or limitations on withdrawals,  waivers of withdrawal
charges,  death  benefits,  Payout Start  Dates,  income  payments,  and other
Contract  features.  In  addition,  adverse  tax  consequences  may  result if
qualified  plan  limits on  distributions  and other  conditions  are not met.
Please consult your qualified plan administrator for more information.


LEGAL MATTERS

Freedman, Levy, Kroll & Simonds,  Washington,  D.C., has advised Northbrook on
certain  federal  securities law matters.  All matters of state  insurance law
pertaining  to the  Contracts,  including  the validity of the  Contracts  and
Northbrook's  right to issue such  Contracts  under state  insurance law, have
been passed upon by Michael J. Velotta, General Counsel of Northbrook.


YEAR 2000

Northbrook is heavily  dependent upon complex  computer systems for all phases
of its  operations,  including  customer  service,  and  policy  and  contract
administration.  Since many of Northbrook's  older computer  software programs
recognize only the last two digits of the year in any date,  some software may
fail to operate  properly  in or after the year 1999,  if the  software is not
reprogrammed or replaced ("YEAR 2000 ISSUE"). Northbrook believes that many of
its counterparties and suppliers also have Year 2000 Issues which could affect
Northbrook.  In 1995,  Allstate Insurance Company commenced a plan intended to
mitigate  and/or  prevent  the  adverse  effects  of Year 2000  Issues.  These
strategies  include  normal  development  and  enhancement of new and existing
systems,   upgrades  to  operating  systems  already  covered  by  maintenance
agreements  and  modifications  to  existing  systems  to make  them Year 2000
compliant.  The plan also includes  Northbrook actively working with its major
external  counterparties  and suppliers to assess their compliance efforts and
Northbrook's  exposure to them.  Northbrook  presently  believes  that it will
resolve the Year 2000 Issue in a timely manner,  and the financial impact will


                                      30

<PAGE>

not  materially  affect its  results of  operations,  liquidity  or  financial
position. Year 2000 costs are and will be expensed as incurred.


                                      31

<PAGE>

TAXES


THE  FOLLOWING  DISCUSSION  IS  GENERAL  AND IS NOT  INTENDED  AS TAX  ADVICE.
NORTHBROOK  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  your   individual
circumstances.  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, you are not taxed on increases in the Contract Value
until a distribution occurs. This rule applies only where:

      1)    the Contract owner is a natural person,

      2)    the   investments   of  the  Variable   Account  are   "adequately
            diversified" according to Treasury Department regulations, and

      3)    Northbrook 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 such as  corporations,  trusts,  or other  entities are not treated as
annuity  contracts  for  federal  income  tax  purposes.  The  income  on such
contracts is taxed as ordinary  income received or accrued by the owner during
the taxable year.  Please see the Statement of  Additional  Information  for a
discussion of several  exceptions  to the general rule for Contracts  owned by
non-natural persons.

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"  consistent with standards under Treasury Department
regulations.  If the  investments  in the Variable  Account are not adequately
diversified,  the  Contract  will not be treated as an  annuity  contract  for
federal income tax purposes.  As a result,  the income on the Contract will be
taxed as ordinary  income received or accrued by the Contract owner during the
taxable year. Although Northbrook does not have control over the Portfolios or
their  investments,  we  expect  the  Portfolios  to meet the  diversification
requirements.

OWNERSHIP TREATMENT.  The IRS has stated that you will be considered the owner
of Variable  Account  assets if you possess  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  the   regulations   do  not  provide   guidance   concerning
circumstances in which investor  control of separate  account  investments may
cause an  investor  to be treated as the owner of the  separate  account.  The
Treasury Department also stated that future guidance would be issued regarding
the extent that owners  could direct  sub-account  investments  without  being
treated as owners of the underlying assets of the separate account.

Your rights under the Contract are different  than those  described by the IRS
in rulings in which it found that contract  owners were not owners of separate
account  assets.  For  example,  you have the choice to allocate  premiums and
Contract Values among more investment  alternatives.  Also, you may be able to
transfer among investment  alternatives  more frequently than in such rulings.
These  differences  could  result  in you  being  treated  as the owner of the
Variable  Account.  If this occurs,  income and gain from the Variable Account
assets would be includible in your gross income. Northbrook does not know what
standards  will be set forth in any  regulations or rulings which the Treasury
Department may issue.  It is possible that future  standards  announced by the
Treasury Department could adversely affect the tax treatment of your Contract.
We reserve the right to modify the Contract as necessary to attempt to prevent
you from being  considered the federal tax owner of the assets of the Variable
Account.  However, we make no guarantee that such modification to the Contract
will be successful.


                                      32

<PAGE>

TAXATION OF PARTIAL  AND FULL  WITHDRAWALS.  If you make 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. The investment in the Contract is the gross premium paid for the
Contract  minus any  amounts  previously  received  from the  Contract if such
amounts were properly  excluded from your gross income.  If you make 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 (i.e.,
nondeductible IRA  contributions,  after tax contributions to qualified plans)
bears to the Contract Value, is excluded from your income.  If you make 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.

"Nonqualified   distributions"  from  Roth  IRAs  are  treated  as  made  from
contributions  first and are  included in gross income only to the extent that
distributions exceed contributions.  "Qualified  distributions" from Roth IRAs
are  not  included  in  gross  income.   "Qualified   distributions"  are  any
distributions  made more than 5 taxable  years after the  taxable  year of the
first contribution to any Roth IRA and which are:

      *     made on or after the date the individual attains age 59 1/2,
      *     made to a beneficiary after the Contract owner's death,
      *     attributable to the Contract owner being disabled, or
      *     for a first time home  purchase  (first  time home  purchases  are
            subject to a lifetime limit of $10,000).

If  you  transfer  a   non-Qualified   Contract   without  full  and  adequate
consideration  to a person  other  than  your  spouse  (or to a former  spouse
incident  to a  divorce),  you  will be taxed on the  difference  between  the
Contract  Value and the  investment  in the  Contract at the time of transfer.
Except for certain Qualified Contracts, any amount you receive 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
annuity  payments  received  from a  non-Qualified  Contract  provides for the
return of your  investment in the Contract in equal tax-free  amounts over the
payment  period.  The balance of each payment  received is taxable.  For 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. If you elect 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.  The
annuity  payments  will  be  fully  taxable  after  the  total  amount  of the
investment  in the Contract is excluded  using these  ratios.  If you die, and
annuity  payments  cease  before  the total  amount of the  investment  in the
Contract is recovered,  the unrecovered  amount will be allowed as a deduction
for your last taxable year.

TAXATION OF ANNUITY DEATH BENEFITS. Death of a Contract owner, or death of the
Annuitant  if the  Contract  is owned by a  non-natural  person,  will cause a
distribution  of death benefits from a Contract.  Generally,  such amounts are
included 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. Please see the Statement of
            Additional  Information  for more detail on  distribution at death
            requirements.

PENALTY  TAX ON  PREMATURE  DISTRIBUTIONS.  A 10%  penalty  tax applies to the
taxable amount of any premature  distribution  from a non-Qualified  Contract.
The penalty tax generally  applies to any distribution  made prior to the date
you attain age 59 1/2. However, no penalty tax is incurred on distributions:

      1)    made on or after the date the Contract owner attains age 59 1/2;
      2)    made as a result of the Contract owner's death or disability;
      3)    made in  substantially  equal periodic  payments over the Contract
            owner's life or life expectancy,
      4)    made under an immediate annuity, or
      5)    attributable to investment in the Contract before August 14, 1982.


                                      33

<PAGE>


You  should  consult  a  competent  tax  advisor  to  determine  if any  other
exceptions  to the penalty apply to your  situation.  Similar  exceptions  may
apply to distributions from Qualified Contracts.

AGGREGATION OF ANNUITY CONTRACTS. All non-qualified deferred annuity contracts
issued by Northbrook (or its affiliates) to the same Contract 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

Contracts may be used as investments with certain qualified plans such as:

      *     Individual  Retirement  Annuities or Accounts (IRAs) under Section
            408 of the Code;
      *     Roth IRAs under Section 408A of the Code;
      *     Simplified  Employee  Pension  Plans under  Section  408(k) of the
            Code;
      *     Savings  Incentive Match Plans for Employees  (SIMPLE) Plans under
            Section 408(p) of the Code;
      *     Tax Sheltered Annuities under Section 403(b) of the Code;
      *     Corporate and Self Employed Pension and Profit Sharing Plans; and
      *     State and Local  Government and Tax-Exempt  Organization  Deferred
            Compensation Plans.

In the case of certain  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 Tax Code
provides  tax-deferred  retirement  savings  plans for  employees  of  certain
non-profit and educational  organizations.  Under Section 403(b), any 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:

      1)    on or after the date of employee
            *     attains age 59 1/2,
            *     separates from service,
            *     dies,
            *     becomes disabled, or
      2)    on account of hardship (earnings on salary reduction contributions
            may not be distributed on the account of hardship).

These  limitations do not apply to withdrawals where Northbrook is directed to
transfer some or all of the Contract Value to another 403(b) plan.

INCOME TAX WITHHOLDING

Northbrook is required to withhold  federal income tax at a rate of 20% on all
"eligible rollover distributions" unless you elect to make a "direct rollover"
of such  amounts to an IRA or  eligible  retirement  plan.  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,

      3)    over the life (joint lives) of the participant (and beneficiary).

Northbrook  may be required to withhold  federal and state income taxes on any
distributions from non-Qualified Contracts or Qualified Contracts that are not
eligible rollover distributions,  unless you notify us of your election to not
have taxes withheld.


                                      34

<PAGE>

PERFORMANCE INFORMATION


We may advertise the performance of the Variable Sub-Accounts, including yield
and total  return  information.  Yield  refers to the income  generated  by an
investment in a Variable  Sub-Account  over a specified  period.  Total return
represents  the change,  over a specified  period of time,  in the value of an
investment   in  a  Variable   Sub-Account   after   reinvesting   all  income
distributions.

All performance advertisements will include, as applicable, standardized yield
and total return figures that reflect the deduction of insurance charges,  the
contract maintenance charge, and withdrawal charge. Performance advertisements
also may include total return  figures that reflect the deduction of insurance
charges, but not the contract maintenance or withdrawal charges. The deduction
of such charges would reduce the performance  shown. In addition,  performance
advertisements may include aggregate, average, year-by-year, or other types of
total return figures.

Performance  information  for  periods  prior  to the  inception  date  of the
Variable  Sub-Accounts  will be based  on the  historical  performance  of the
corresponding Portfolios for the periods beginning with the inception dates of
the Portfolios and adjusted to reflect current Contract  expenses.  You should
not interpret  these figures to reflect actual  historical  performance of the
variable account.

We may include in  advertising  and sales  materials tax deferred  compounding
charts and other hypothetical illustrations that compare currently taxable and
tax  deferred  investment  programs  based  on  selected  tax  brackets.   Our
advertisements  also may compare the performance of our Variable  Sub-Accounts
with: (a) certain  unmanaged market indices,  including but not limited to the
Dow Jones  Industrial  Average,  the  Standard & Poor's 500,  and the Shearson
Lehman Bond  Index;  and/or (b) other  management  investment  companies  with
investment  objectives  similar to the  underlying  funds being  compared.  In
addition,  our advertisements may include the performance  ranking assigned by
various  publications,  including the Wall Street  Journal,  Forbes,  Fortune,
Money, Barron's, Business Week, USA Today, and statistical services, including
Lipper Analytical  Services Mutual Fund Survey,  Lipper Annuity and Closed End
Survey, the Variable Annuity Research Data Survey, and SEI.


                                      35

<PAGE>

                                  APPENDIX A
           ACCUMULATION UNIT VALUE AND NUMBER OF ACCUMULATION UNITS
                  OUTSTANDING FOR EACH VARIABLE SUB-ACCOUNT*

<TABLE>
<CAPTION>
                                               1989        1990        1991        1992
                                               ----        ----        ----        ----
<S>                                          <C>         <C>         <C>         <C>
MONEY MARKET SUB-ACCOUNT
Accumulation Unit Value, Beginning of
Period.....................................    $13.459     $14.532     $15.530     $16.260
Accumulation Unit Value, End of
Period.....................................    $14.532     $15.530     $16.260     $16.651
Number of Units Outstanding, End of
Period.....................................  5,269,945   7,300,227   4,993,305   3,142,381
QUALITY INCOME PLUS SUB-ACCOUNT
Accumulation Unit Value, Beginning of
Period.....................................    $10.828     $12.097     $12.798     $15.016
Accumulation Unit Value, End of
Period.....................................    $12.097     $12.798     $15.016     $16.096
Number of Units Outstanding, End of
Period.....................................  4,028,103   4,292,424   4,272,603   4,167,157
HIGH YIELD SUB-ACCOUNT
Accumulation Unit Value, Beginning of
Period.....................................    $17.324     $14.993     $10.864     $17.064
Accumulation Unit Value, End of
Period.....................................    $14.993     $10.864     $17.064     $20.008
Number of Units Outstanding, End of
Period.....................................  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


                                      36

<PAGE>



PACIFIC GROWTH 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.....................................    $15.786     $18.580     $17.728     $27.916
Accumulation Unit Value, End of
Period.....................................    $18.580     $17.728     $27.916     $27.681
Number of Units Outstanding, End of
Period.....................................  3,123,809   2,302,425   2,025,964   1,886,301
STRATEGIST SUB-ACCOUNT
Accumulation Unit Value, Beginning of
Period.....................................    $11.211     $12.284     $12.351     $15.684
Accumulation Unit Value, End of
Period.....................................    $12.284     $12.351     $15.684     $16.651
Number of Units Outstanding, End of
Period.....................................  7,164,494   5,424,907   4,805,519   4,762,207


                                              1993       1994        1995         1996         1997       1998
                                              ----       ----        ----         ----         ----       ----

MONEY MARKET SUB-ACCOUNT
Accumulation Unit Value, Beginning of
Period.....................................   $16.651    $16.940     $17.411      $18.215    $18.955     $ 19.748
Accumulation Unit Value, End of
Period.....................................   $16.940    $17.411     $18.215      $18.955    $19.748     $ 20.578
Number of Units Outstanding, End of
Period..................................... 2,402,295  2,408,602   1,486,360    1,225,023    937,820      945,513
QUALITY INCOME PLUS SUB-ACCOUNT
Accumulation Unit Value, Beginning of
Period.....................................   $16.096    $18.010     $16.648      $20.498    $20.608     $ 22.671
Accumulation Unit Value, End of
Period.....................................   $18.010    $16.648     $20.498      $20.608    $22.671     $ 24.315
Number of Units Outstanding, End of
Period..................................... 3,998,449  2,779,045   2,159,205    1,301,162    927,584      754,206
HIGH YIELD SUB-ACCOUNT
Accumulation Unit Value, Beginning of
Period.....................................   $20.008    $24.609     $23.759      $27.055    $29.993     $ 33.219
Accumulation Unit Value, End of
Period.....................................   $24.609    $23.759     $27.055      $29.993    $33.219     $ 30.869
Number of Units Outstanding, End of
Period..................................... 1,537,549  1,202,135     906,011      712,341    587.053      492,928
UTILITIES SUB-ACCOUNT
Accumulation Unit Value, Beginning of
Period.....................................   $13.797    $15.804     $14.235      $18.132    $19.509      $24.559
Accumulation Unit Value, End of
Period.....................................   $15.804    $14.235     $18.132      $19.509    $24.559      $30.037
Number of Units Outstanding, End of
Period..................................... 3,932,991  2,814,866   2,298,190    1,419,955    883,371      741,971
INCOME BUILDER SUB-ACCOUNT
Accumulation Unit Value, Beginning of
Period.....................................        --         --          --          --        --        $12.120
Accumulation Unit Value, End of
Period.....................................        --         --          --          --     $12.120      $12.389
Number of Units Outstanding, End of
Period.....................................        --         --          --          --      60,458       50,807
DIVIDEND GROWTH SUB-ACCOUNT
Accumulation Unit Value, Beginning of
Period.....................................   $12.383    $14.019     $13,425      $18.128    $22.248      $27.667
Accumulation Unit Value, End of
Period.....................................   $14.019    $13.425     $18.128      $22.248    $27.667      $31.130 
Number of Units Outstanding, End of
Period..................................... 5,878,916  5,229,279   4,402,940    3,144,203  2,485,592    2,007,199
CAPITAL GROWTH SUB-ACCOUNT
Accumulation Unit Value, Beginning of
Period.....................................   $12.814    $11.799     $11.533      $15.177    $16.760      $20.666
Accumulation Unit Value, End of
Period.....................................   $11.799    $11.533     $15.177      $16.760    $20.666      $24.478
Number of Units Outstanding, End of
Period.....................................   457,147    321,342     256,312      192,504    148,763      125,509


                                      37

<PAGE>

GLOBAL DIVIDEND GROWTH SUB-ACCOUNT
Accumulation Unit Value, Beginning of
Period.....................................        --    $10.000      $9.942      $12.012    $13.984      $15.511 
Accumulation Unit Value, End of
Period.....................................        --     $9.942     $12.012      $13.984    $15.511      $17.282
Number of Units Outstanding, End of
Period.....................................        --    951,857     852,851      725,977    604,338      424,746
EUROPEAN GROWTH SUB-ACCOUNT
Accumulation Unit Value, Beginning of
Period.....................................   $10.347    $14.433     $15.484      $19.299    $24.837      $28.545
Accumulation Unit Value, End of
Period.....................................   $14.433    $15.484     $19.299      $24.837    $28.545      $35.033 
Number of Units Outstanding, End of
Period.....................................   767,814    868.638     649,852      545,184    441,921      369,513
PACIFIC GROWTH SUB-ACCOUNT
Accumulation Unit Value, Beginning of
Period.....................................        --    $10.000      $9.248       $9.682     $9.957       $6.142
Accumulation Unit Value, End of
Period.....................................        --     $9.248      $9.682       $9.957     $6.142       $5.448
Number of Units Outstanding, End of 
Period.....................................        --    644,451     608,464      523,417    290,930      277,001
EQUITY SUB-ACCOUNT
Accumulation Unit Value, Beginning of
Period.....................................   $27.681    $32.807     $30.885      $43.585    $48.483      $65.969
Accumulation Unit Value, End of
Period.....................................   $32.807    $30.885     $43.585      $48.483    $65.969      $85.154
Number of Units Outstanding, End of
Period..................................... 1,800,750  1,652,850   1,314,532      968,987    782,723      641,223
STRATEGIST SUB-ACCOUNT
Accumulation Unit Value, Beginning of
Period.....................................   $16.651    $18.199     $18.728      $20.284    $23.098      $26.006
Accumulation Unit Value, End of
Period.....................................   $18.199    $18.728     $20.284      $23.098    $26.006      $32.615
Number of Units Outstanding, End of
Period..................................... 4,409,391  3,994,684   2,708,051    1,937,096  1,477,411    1,141,504
<FN>
* 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  Sub-Account  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%. After the close of business on March 19, 1999,  the
Capital  Appreciation  Variable  Sub-Account  was  combined  with  the  Equity
Variable  Sub-Account  in  conjunction  with  the  merger  of  the  underlying
Portfolios.
</FN>
</TABLE>


                                      38

<PAGE>

                      STATEMENT OF ADDITIONAL INFORMATION
                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
DESCRIPTION                                                                   PAGE
<S>                                                                             <C>
Additions, Deletions or Substitutions of Investments
The Contract....................................................................
         Purchases..............................................................
         Tax-free Exchanges (1035 Exchanges, Rollovers and Transfers)
Calculation of Accumulation Unit Values.........................................
Calculation of Variable Income Payments.........................................
General Matters.................................................................
         Incontestability.......................................................
         Settlements............................................................
         Safekeeping of the Variable Account's Assets
         Premium Taxes..........................................................
         Tax Reserves...........................................................
Federal Tax Matters.............................................................
Qualified Plans.................................................................
Experts.........................................................................
Financial Statements............................................................
</TABLE>


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




THIS PROSPECTUS  DOES NOT CONSTITUTE AN OFFERING IN ANY  JURISDICTION IN WHICH
SUCH OFFERING MAY NOT LAWFULLY BE MADE. WE DO NOT AUTHORIZE  ANYONE TO PROVIDE
ANY INFORMATION OR  REPRESENTATIONS  REGARDING THE OFFERING  DESCRIBED IN THIS
PROSPECTUS OTHER THAN AS CONTAINED IN THIS PROSPECTUS.


                                 [back cover]

    
                                      39
<PAGE>

                   MORGAN STANLEY DEAN WITTER VARIABLE ANNUITY


Northbrook Life and Annuity Company        Statement of Additional Information
NORTHBROOK VARIABLE ANNUITY ACCOUNT I               dated May 1, 1999
POST OFFICE BOX 94040
PALATINE, IL 60094-4040
1 (800) 654 - 2397


This  Statement of Additional  Information  supplements  the  information in the
prospectus for the Morgan Stanley Dean Witter Variable  Annuity Contract that we
offer. This Statement of Additional Information is not a prospectus.  You should
read it with the prospectus, dated May 1, 1999, for the Contract. You may obtain
a prospectus by calling or writing us at the address or telephone  number listed
above,  or by calling or writing  your  Morgan  Stanley  Dean  Witter  financial
adviser.

Except as otherwise  noted,  this Statement of Additional  Information  uses the
same  defined  terms as the  prospectus  for the Dean  Witter  Variable  Annuity
Contracts that we offer.



                               TABLE OF CONTENTS

DESCRIPTION                                                            PAGE

Additions, Deletions or Substitutions of Investments
The Contract
         Purchases
         Tax-free Exchanges (1035 Exchanges, Rollovers and
               Transfers)
Calculation of Accumulation Unit Values
Calculation of Variable Income Payments
General Matters
         Incontestability
         Settlements
         Safekeeping of the Variable Account's Assets
         Premium Taxes
         Tax Reserves
Federal Tax Matters
Qualified Plans
Experts
Financial Statements


<PAGE>

ADDITIONS, DELETIONS OR SUBSTITUTIONS OF INVESTMENTS


We may add,  delete,  or substitute the Portfolio  shares held by any Variable
Sub-Account  to the extent the law permits.  We may  substitute  shares of any
Portfolio  with those of another  Portfolio  of the same or  different  mutual
Portfolio  if  the  shares  of  the  Portfolio  are no  longer  available  for
investment,  or if  we  believe  investment  in  any  Portfolio  would  become
inappropriate in view of the purposes of the Variable Account.

We will not substitute shares attributable to a Contract owner's interest in a
Variable  Sub-Account until we have notified the Contract owner of the change,
and until the Securities and Exchange  Commission has approved the change,  to
the extent  such  notification  and  approval  are  required  by law.  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 Contract owners.

We also may establish  additional Variable  Sub-Accounts or series of Variable
Sub-Accounts.  Each additional Variable Sub-Account would purchase shares in a
new  Portfolio of the same or  different  mutual fund.  We may  establish  new
Variable Sub-Accounts when we believe marketing needs or investment conditions
warrant.  We  determine  the  basis on which we will  offer  any new  Variable
Sub-Accounts in conjunction with the Contract to existing  Contract owners. We
may eliminate one or more Variable  Sub-Accounts  if, in our sole  discretion,
marketing, tax or investment conditions so warrant.

We  may,  by  appropriate  endorsement,  change  the  Contract  as we  believe
necessary  or  appropriate  to  reflect  any  substitution  or  change  in the
Portfolios.  If we believe the best  interests of persons having voting rights
under the Contracts would be served,  we may operate the Variable Account as a
management company under the Investment Company Act of 1940 or we may withdraw
its registration under such Act if such registration is no longer required.


                                      2

<PAGE>

THE CONTRACT


The Contract is primarily  designed to aid individuals in long-term  financial
planning.  You can use it for  retirement  planning  regardless of whether the
retirement plan qualifies for special federal income tax treatment.


PURCHASE OF CONTRACTS

Dean Witter  Reynolds,  Inc., is the principal  underwriter and distributor of
the  Contracts.  The  offering  of  the  Contracts  is  continuous.  We do not
anticipate  discontinuing  the offering of the  Contracts,  but we reserve the
right to do so at any time.


TAX-FREE EXCHANGES (1035 EXCHANGES, ROLLOVERS AND TRANSFERS)

We  accept  purchase  payments  that  are  the  proceeds  of a  Contract  in a
transaction  qualifying  for a tax-free  exchange  under  Section  1035 of the
Internal  Revenue  Code  ("Code").  Except  as  required  by  federal  law  in
calculating the basis of the Contract, we do not differentiate between Section
1035 purchase payments and non-Section 1035 purchase payments.

We  also  accept  "rollovers"  and  transfers  from  Contracts  qualifying  as
tax-sheltered annuities ("TSAs"),  individual retirement annuities or accounts
("IRAs"),  or any other Qualified Contract that is eligible to "rollover" into
an IRA. We differentiate among non-Qualified  Contracts,  TSAs, IRAs and other
Qualified  Contracts to the extent  necessary to comply with federal tax laws.
For example, we restrict the assignment,  transfer, or pledge of TSAs and IRAs
so the  Contracts  will  continue  to qualify for  special  tax  treatment.  A
Contract  owner  contemplating  any such  exchange,  rollover or transfer of a
Contract  should contact a competent tax adviser with respect to the potential
effects of such a transaction.


                                      3

<PAGE>

CALCULATION OF ACCUMULATION UNIT VALUES


The value of Accumulation Units will change each VALUATION PERIOD according to
the investment  performance of the Portfolio shares purchased by each Variable
Sub-Account  and the deduction of certain  expenses and charges.  A "Valuation
Period" is the period from the end of one Valuation  Date and continues to the
end of the next Valuation  Date. A Valuation Date ends at the close of regular
trading on the New York Stock Exchange (currently 3:00 p.m. Central Time).

The Accumulation Unit Value of a Variable Sub-Account for any Valuation Period
equals the Accumulation Unit Value as of the immediately  preceding  Valuation
Period,  multiplied by the NET INVESTMENT  FACTOR  (described  below) for that
Sub-Account for the current Valuation Period.


NET INVESTMENT FACTOR

The Net Investment Factor for a Valuation Period is a number  representing the
change,  since the last Valuation Period,  in the value of Sub-account  assets
per Accumulation Unit due to investment income, realized or unrealized capital
gain or loss,  deductions for taxes,  if any, and deductions for the mortality
and expense risk charge and  administrative  expense charge.  We determine the
Net Investment  Factor for each Variable  Sub-Account for any Valuation Period
by dividing (A) by (B) and subtracting (C) from the result, where:

      (A)   is the sum of:

            (1)   the net asset  value per share of the  Portfolio  underlying
                  the  Variable  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  underlying the Variable
                  Sub-Account during the current Valuation Period;

      (B)   is the net asset value per share of the Portfolio  underlying  the
            Variable  Sub-Account  determined as of the end of the immediately
            preceding Valuation Period; and

      (C)   is the  annualized  mortality and expense risk and  administrative
            expense  charges  divided by 365 and then multiplied by the number
            of calendar days in the current Valuation Period.


                                      4

<PAGE>

CALCULATION OF VARIABLE INCOME PAYMENTS

We calculate the amount of the first  variable  income payment under an Income
Plan by applying the Contract  Value  allocated to each  Variable  Sub-Account
less any  applicable  premium tax charge  deducted at the time,  to the income
payment  tables in the  Contract.  We divide the amount of the first  variable
annuity income payment by the Variable Sub-Account's then current Annuity Unit
value to determine  the number of annuity units  ("ANNUITY  UNITS") upon which
later income  payments will be based.  To determine  income payments after the
first,  we simply  multiply  the number of Annuity  Units  determined  in this
manner for each Variable  Sub-Account  by the then current  Annuity Unit value
("ANNUITY UNIT VALUE") for that Variable Sub-Account.


CALCULATION OF ANNUITY UNIT VALUES

Annuity Units in each Variable  Sub-Account are valued  separately and Annuity
Unit  Values  will depend upon the  investment  experience  of the  particular
Portfolio in which the Variable  Sub-Account invests. We calculate the Annuity
Unit Value for each Variable  Sub-Account  at the end of any Valuation  Period
by:

      *     multiplying  the Annuity Unit Value at the end of the  immediately
            preceding  Valuation  Period  by the  Variable  Sub-Account's  Net
            Investment  Factor  (described in the  preceding  section) for the
            Period; and then

      *     dividing the product by the sum of 1.0 plus the assumed investment
            rate for the Valuation Period.

The assumed  investment  rate  adjusts for the  interest  rate  assumed in the
income  payment  tables  used to  determine  the  dollar  amount  of the first
variable income payment, and is at an effective annual rate which is disclosed
in the Contract.

We determine  the amount of the first  variable  income  payment paid under an
Income  Plan using the income  payment  tables set out in the  Contracts.  The
Contracts  include tables that  differentiate  on the basis of sex,  except in
states that require the use of unisex tables.


                                      5

<PAGE>

GENERAL MATTERS


INCONTESTABILITY

We will not contest the Contract after we issue it.


SETTLEMENTS

The Contract must be returned to us prior to any  settlement.  We must receive
due proof of the Contract  owner(s) death (or Annuitant's  death if there is a
non-natural Contract owner) before we will settle a death claim.


SAFEKEEPING OF THE VARIABLE ACCOUNT'S ASSETS

We hold  title to the  assets  of the  Variable  Account.  We keep the  assets
physically  segregated  and  separate  and apart  from our  general  corporate
assets.  We maintain records of all purchases and redemptions of the Portfolio
shares held by each of the Variable Sub-Accounts.

The  Portfolios  do not  issue  stock  certificates.  Therefore,  we hold  the
Variable Account's assets in open account in lieu of stock  certificates.  See
the Portfolios'  prospectuses for a more complete description of the custodian
of the Portfolios.


PREMIUM TAXES

Applicable premium tax rates depend on the Contract owner's state of residency
and the insurance  laws and our status in those states where premium taxes are
incurred.  Premium  tax rates may be  changed by  legislation,  administrative
interpretations, or judicial acts.


TAX RESERVES

We do not establish  capital  gains tax reserves for any Variable  Sub-Account
nor do we deduct  charges for tax  reserves  because we believe  that  capital
gains  attributable to the Variable Account will not be taxable.  However,  we
reserve the right to deduct  charges to establish  tax reserves for  potential
taxes on realized or unrealized capital gains.


                                      6

<PAGE>

FEDERAL TAX MATTERS


THE FOLLOWING DISCUSSION IS GENERAL AND IS NOT INTENDED AS TAX ADVICE. WE MAKE
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

Northbrook is taxed as a life  insurance  company under Part I of Subchapter L
of the Internal  Revenue  Code.  Since the  Variable  Account is not an entity
separate from  Northbrook,  and its operations  form a part of Northbrook,  it
will  not be  taxed  separately  as a  "Regulated  Investment  Company"  under
Subchapter M of the Code.  Investment income and realized capital gains of the
Variable  Account are  automatically  applied to increase  reserves  under the
contract.  Under existing federal income tax law, Northbrook believes that the
Variable Account  investment income and capital gains will not be taxed to the
extent that such income and gains are applied to increase the  reserves  under
the contract.  Accordingly,  Northbrook does not anticipate that it will incur
any federal income tax liability  attributable  to the Variable  Account,  and
therefore Northbrook does not intend to make provisions for any such taxes. If
Northbrook  is taxed on  investment  income or capital  gains of the  Variable
Account,  then Northbrook may impose a charge against the Variable  Account in
order to make provision for such taxes.


EXCEPTIONS TO THE NON-NATURAL OWNER RULE

There are several  exceptions to the general rule that annuity  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.


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.


                                      7

<PAGE>

QUALIFIED PLANS


The 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.  Contract
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.


INDIVIDUAL RETIREMENT ANNUITIES

Section 408 of the Code  permits  eligible  individuals  to  contribute  to an
individual retirement program known as an Individual Retirement Annuity (IRA).
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. An IRA generally may
not provide life insurance, but it may provide a death benefit that equals the
greater of the  premiums  paid and the  Contract's  Cash Value.  The  Contract
provides a death benefit that in certain  circumstances may exceed the greater
of the payments and the Contract  Value. It is possible that the death benefit
could be viewed as violating the  prohibition  on investment in life insurance
contracts  with the result that the Contract would not be viewed as satisfying
the requirements of an IRA.


ROTH INDIVIDUAL RETIREMENT ANNUITIES

Section 408A of the Code permits  eligible  individuals to make  nondeductible
contributions to an individual  retirement  program known as a Roth Individual
Retirement  Annuity.  Roth  Individual  Retirement  Annuities  are  subject to
limitations  on the  amount  that  can be  contributed  and on the  time  when
distributions  may commence.  "Qualified  distributions"  from Roth Individual
Retirement   Annuities  are  not   includible  in  gross  income.   "Qualified
distributions"  are any distributions  made more than five taxable years after
the taxable year of the first  contribution to the Roth Individual  Retirement
Annuity, and which are made on or after the date the individual attains age 59
1/2, made to a beneficiary after the owner's death,  attributable to the owner
being  disabled or for a first time home purchase  (first time home  purchases
are subject to a lifetime limit of $10,000).  "Nonqualified distributions" are
treated as made from contributions first and are includible in gross income to
the  extent  such  distributions  exceed  the  contributions  made to the Roth
Individual   Retirement  Annuity.  The  taxable  portion  of  a  "nonqualified
distribution"   may  be  subject  to  the  10%   penalty   tax  on   premature
distributions.  Subject  to  certain  limitations,  a  traditional  Individual
Retirement  Account or Annuity  may be  converted  or "rolled  over" to a Roth
Individual Retirement Annuity. The taxable portion of a conversion or rollover
distribution  is  includible  in gross  income,  but is exempted  from the 10%
penalty tax on premature distributions.


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. Employers intending to use
the Contract in connection  with such plans should seek competent  advice.  In
particular,  employers  should  consider that an IRA generally may not provide
life insurance,  but it may provide a death benefit that equals the greater of
the premiums paid and the contract's cash value. The Contract provides a death
benefit that in certain  circumstances  may exceed the greater of the payments
and the Contract Value.


                                      8

<PAGE>

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 on or after the date 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 for hardship).  These
limitations  do not apply to  withdrawals  where  Northbrook  is  directed  to
transfer some or all of the Contract Value to another 403(b) plan.


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.


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. To the extent the Contracts are used in connection
with an eligible  plan,  employees  are  considered  general  creditors of the
employer  and the  employer as owner of the contract has the sole right to the
proceeds of the contract.  Generally,  under the non-natural owner rules, such
Contracts  are not  treated  as  annuity  contracts  for  federal  income  tax
purposes.  Under  these  plans,  contributions  made  for the  benefit  of the
employees  will  not  be  includible  in the  employees'  gross  income  until
distributed  from  the  plan.  However,  under  a  Section  457  plan  all the
compensation  deferred  under the plan must remain  solely the property of the
employer,  subject  only to the claims of the  employer's  general  creditors,
until such time as made available to the employee or a beneficiary.


                                      9

<PAGE>

EXPERTS


The financial  statements and the related financial  statement schedule included
in this  Statement  of  Additional  Information  have been audited by Deloitte &
Touche, LLP, independent  auditors, as stated in their reports appearing herein,
and are  included  in  reliance  upon the  reports of such firm given upon their
authority as experts in accounting and auditing.


                                      10

<PAGE>

FINANCIAL STATEMENTS


The  financial  statements  of the  Variable  Account  and  Northbrook  and  the
accompanying  Independent Auditors' Reports appear on the pages that follow. The
financial  statements of Northbrook included herein should be considered only as
bearing  upon the  ability  of  Northbrook  to meet its  obligations  under  the
Contracts.

                                      11

<PAGE>
                              Financial Statements

                                     Index
                                     -----

                                                                            Page
                                                                            ----

Independent Auditors' Report............................................... F-1

Financial Statements:


     Statements of Financial Position
      December 31, 1998 and 1997........................................... F-2

     Statements of Operations and Comprehensive Income for the Years Ended
      December 31, 1998, 1997 and 1996..................................... F-3

     Statements of Shareholder's Equity for the Years Ended
      December 31, 1998, 1997 and 1996..................................... F-4

     Statements of Cash Flows for the Years Ended
      December 31, 1998, 1997 and 1996..................................... F-5

     Notes to Financial Statements......................................... F-6

     Schedule IV - Reinsurance for the Years Ended
      December 31, 1998, 1997 and 1996..................................... F-17

 



<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", an affiliate of The Allstate Corporation)
as of December 31, 1998 and 1997,  and the related  Statements of Operations and
Comprehensive Income,  Shareholder's Equity and Cash Flows for each of the three
years in the period ended December 31, 1998.  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 the  Company as of December  31, 1998 and
1997, and the results of its operations and its cash flows for each of the three
years in the  period  ended  December  31,  1998 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 19, 1999

                                      F-1

<PAGE>



<TABLE>
<CAPTION>


                                       NORTHBROOK LIFE INSURANCE COMPANY
                                        STATEMENTS OF FINANCIAL POSITION

                                                                                         December 31,
                                                                                         ------------
($ in thousands)                                                                       1998        1997
                                                                                       ----        ----
<S>                                                                                <C>          <C>    

ASSETS
Investments
    Fixed income securities, at fair value
       (amortized cost $81,156 and $72,491)                                        $   86,336   $   76,402
    Short-term                                                                          5,083        3,031
                                                                                   ----------   ----------
    Total investments                                                                  91,419       79,433

Reinsurance recoverable from Allstate Life
    Insurance Company                                                               2,148,091    2,293,094
Receivable from affiliates, net                                                          --          1,467
Other assets                                                                            8,206        5,033
Separate Accounts                                                                   7,031,083    5,719,203
                                                                                   ----------   ----------   
    TOTAL ASSETS                                                                   $9,278,799   $8,098,230
                                                                                   ==========   ==========

LIABILITIES
Reserve for life-contingent contract benefits                                      $  145,055   $  144,352
Contractholder funds                                                                2,003,122    2,148,555
Current income taxes payable                                                            1,830          162
Deferred income taxes                                                                   3,316        2,674
Payable to affiliates, net                                                              6,586         --
Separate Accounts                                                                   7,031,083    5,719,203
                                                                                   ----------   ----------   
    TOTAL LIABILITIES                                                               9,190,992    8,014,946
                                                                                   ----------   ----------   

COMMITMENTS AND CONTINGENT LIABILITIES (NOTE 10)

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
Retained income                                                                        25,340       21,642

Accumulated other comprehensive income:
  Unrealized net capital gains                                                          3,367        2,542
                                                                                   ----------   ----------   
    Total accumulated other comprehensive income                                        3,367        2,542
                                                                                   ----------   ----------   
    TOTAL SHAREHOLDER'S EQUITY                                                         87,807       83,284
                                                                                   ----------   ----------   
    TOTAL LIABILITIES AND SHAREHOLDER'S EQUITY                                     $9,278,799   $8,098,230
                                                                                   ==========   ==========

<FN>

See notes to financial statements.

</FN>
</TABLE>


                                      F-2
<PAGE>




<TABLE>
<CAPTION>


                        NORTHBROOK LIFE INSURANCE COMPANY
                STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME

                                                                                    Year Ended December 31,
                                                                                    -----------------------
($ in thousands)                                                                 1998        1997       1996
                                                                                 ----        ----       ----
<S>                                                                             <C>        <C>        <C>     

REVENUES
Net investment income                                                           $ 5,691    $ 5,146    $ 4,888
Realized capital gains and losses                                                     2        (68)       (20)
                                                                                -------    -------    -------
                                                                                                                            
INCOME FROM OPERATIONS BEFORE INCOME TAX EXPENSE                                  5,693      5,078      4,868
Income tax expense                                                                1,995      1,756      1,666
                                                                                -------    -------    -------    

NET INCOME                                                                        3,698      3,322      3,202
                                                                                -------    -------    -------    

OTHER COMPREHENSIVE INCOME, AFTER-TAX
  Change in unrealized net capital gains and losses                                 825      1,256     (1,371)
                                                                                -------    -------    -------    

COMPREHENSIVE INCOME                                                            $ 4,523    $ 4,578    $ 1,831
                                                                                =======    =======    =======

<FN>

See notes to financial statements.

</FN>
</TABLE>


                                      F-3
<PAGE>



<TABLE>
<CAPTION>

                        NORTHBROOK LIFE INSURANCE COMPANY
                       STATEMENTS OF SHAREHOLDER'S EQUITY



                                                                                      December 31,
                                                                                      ------------  
($ in thousands)                                                               1998      1997        1996
                                                                               ----      ----        ----
<S>                                                                          <C>        <C>        <C>    

COMMON STOCK                                                                 $  2,500   $  2,500   $  2,500
                                                                             --------   --------   --------

ADDITIONAL CAPITAL PAID-IN                                                     56,600     56,600     56,600
                                                                             --------   --------   --------    

RETAINED INCOME
Balance, beginning of year                                                     21,642     18,320     15,118
Net income                                                                      3,698      3,322      3,202
                                                                             --------   --------   --------    
Balance, end of year                                                           25,340     21,642     18,320
                                                                             --------   --------   --------    

ACCUMULATED OTHER COMPREHENSIVE INCOME
Balance, beginning of year                                                      2,542      1,286      2,657
Change in unrealized net capital gains and losses                                 825      1,256     (1,371)
                                                                             --------   --------   -------- 
Balance, end of year                                                            3,367      2,542      1,286
                                                                             --------   --------   --------    

     Total shareholder's equity                                              $ 87,807   $ 83,284   $ 78,706
                                                                             ========   ========   ========


<FN>

See notes to financial statements.

</FN>
</TABLE>

                                      F-4
<PAGE>
 


<TABLE>
<CAPTION>

                        NORTHBROOK LIFE INSURANCE COMPANY
                            STATEMENTS OF CASH FLOWS


                                                              Year Ended December 31,
                                                              -----------------------
  ($ in thousands)                                          1998       1997         1996
                                                            ----       ----         ----
<S>                                                       <C>         <C>         <C>    

CASH FLOWS FROM OPERATING ACTIVITIES
Net income                                                $  3,698    $  3,322    $  3,202
Adjustments to reconcile net income to net
  cash provided by operating activities
       Depreciation, amortization and
         other non-cash items                                  518         516         782
       Realized capital gains and losses                        (2)         68          20
       Changes in:
        Life-contingent contract benefits and
          contractholder funds                                 273         205        (198)
        Income taxes payable                                 1,866        (480)        346
        Other operating assets and liabilities               4,126        (264)        542
                                                          --------    --------    --------
          Net cash provided by operating activities         10,479       3,367       4,694
                                                          --------    --------    --------

CASH FLOWS FROM INVESTING ACTIVITIES
Fixed income securities
       Proceeds from sales                                   1,922       1,606       3,522
       Investment collections                               10,253      10,036       5,770
       Investment purchases                                (20,690)    (18,568)    (15,532)
Change in short-term investments, net                       (1,964)      3,559       1,459
                                                          --------    --------    --------
          Net cash used in investing activities            (10,479)     (3,367)     (4,781)
                                                          --------    --------    --------

NET DECREASE IN CASH                                          --          --           (87)
CASH AT THE BEGINNING OF YEAR                                 --          --            87
                                                          --------    --------    --------
CASH AT END OF YEAR                                       $   --      $   --      $     --
                                                          ========    ========    ========

<FN>
        See notes to financial statements.

</FN>
</TABLE>


                                      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"). These financial statements have been prepared in conformity with
generally accepted accounting principles.

To conform  with the 1998  presentation,  certain  amounts  in the prior  years'
financial statements and notes have been reclassified.

NATURE OF OPERATIONS  
The Company markets savings products and life insurance exclusively through Dean
Witter Reynolds Inc. ("Dean Witter") (see Note 4), a wholly owned  subsidiary of
Morgan Stanley Dean Witter. Savings products include deferred annuities, such as
variable  annuities and fixed rate single and flexible  premium  annuities,  and
immediate  annuities.  Life insurance  includes universal life and variable life
products.  In 1998,  substantially all of the Company's  statutory  premiums and
deposits were from annuities.  The Company  re-domesticated  its operations from
Illinois to Arizona in 1998.

Annuity contracts and life insurance  policies issued by the Company are subject
to  discretionary  surrenders or withdrawal by customers,  subject to applicable
surrender  charges.  These  policies and contracts are reinsured  primarily with
ALIC (see Note 3),  which  invests  premiums  and deposits to provide cash flows
that will be used to fund future benefits and expenses.

The  Company  monitors  economic  and  regulatory  developments  which  have the
potential to impact its  business.  There  continues to be proposed  federal and
state  regulation  and  legislation  that, if passed,  would allow banks greater
participation in securities and insurance businesses.  Such events would present
an  increased  level  of  competition  for  sales  of  the  Company's  products.
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 demand for these products.

Additionally,  traditional  demutualizations  of mutual insurance  companies and
enacted and pending state  legislation to permit mutual  insurance  companies to
convert to a hybrid  structure  known as a mutual  holding  company could have a
number  of  significant  effects  on  the  Company  by (1)  increasing  industry
competition through  consolidation caused by mergers and acquisitions related to
the new  corporate  form of  business;  and (2)  increasing  competition  in the
capital markets.

The Company is authorized to sell life and savings products in all states except
New York,  as well as in the  District  of  Columbia  and Puerto  Rico.  The top
geographic  locations  for  statutory  premiums and deposits for the Company are
California,  Florida and Texas for the year ended  December 31,  1998.  No other
jurisdiction  accounted  for more than 5% of statutory  premiums  and  deposits.
Substantially  all premiums  and  deposits  are ceded to ALIC under  reinsurance
agreements.

                                      F-6
<PAGE>

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.  Short-term  investments  are
carried at cost or amortized cost, which approximates fair value.

Investment  income  consists  primarily of interest and  dividends on short-term
investments.  Interest  is  recognized  on an accrual  basis and  dividends  are
recorded at the ex-dividend date. 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.

REINSURANCE
The Company has  reinsurance  agreements  whereby  substantially  all  premiums,
contract charges,  credited  interest,  policy benefits and certain expenses are
ceded to  ALIC.  Such  amounts  are  reflected  net of such  reinsurance  in the
statements  of operations  and  comprehensive  income.  The amounts shown in the
Company's  statements  of  operations  and  comprehensive  income  relate to the
investment  of  those  assets  of the  Company  that are not  transferred  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.

RECOGNITION OF PREMIUM REVENUES AND CONTRACT CHARGES
Revenues on universal  life-type contracts are comprised of contract charges and
fees, and are recognized when assessed against the policyholder account balance.
Revenues on investment  contracts include contract charges and fees for contract
administration and surrenders. These revenues are recognized when levied against
the contract  balance.  All premium  revenues and contract charges are primarily
reinsured with ALIC.

INCOME TAXES
The income tax provision is calculated  under the liability method and presented
net of  reinsurance.  Deferred tax assets and  liabilities are recorded based on
the  difference  between  the  financial  statement  and tax bases of assets and
liabilities  at  the  enacted  tax  rates.  Deferred  income  taxes  arise  from
unrealized  capital gains and losses on fixed income securities  carried at fair
value and differences in the tax bases of investments.

                                      F-7
<PAGE>


SEPARATE ACCOUNTS
The Company issues flexible premium deferred  variable annuity and variable life
policies,  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.  The Company's  Separate Accounts consist
of: Northbrook Variable Annuity Account,  Northbrook Variable Annuity Account II
and  Northbrook  Life  Variable  Life  Separate  Account A. Each of the Separate
Accounts are 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 and comprehensive income.  Revenues to the Company from
the Separate Accounts consist of contract maintenance fees, administration fees,
mortality and expense risk charges and cost of insurance  charges,  all of which
are reinsured with ALIC.

RESERVE FOR LIFE-CONTINGENT CONTRACT BENEFITS
The reserve for life-contingent  contract benefits,  which relates to structured
settlement  annuities  with  life  contingencies,  is  computed  on the basis of
assumptions as to future investment yields, mortality,  morbidity,  terminations
and expenses.  These  assumptions  include  provisions for adverse deviation and
generally vary by such  characteristics  as type of coverage,  year of issue and
policy duration. Reserve interest rates ranged from 4.00% to 11.00% during 1998.

CONTRACTHOLDER FUNDS
Contractholder funds arise from the issuance of individual or group policies and
contracts that include an investment  component,  including most fixed annuities
and universal life policies.  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 1998,  credited interest rates on
contractholder  funds ranged from 3.46% to 11.00% for those contracts with fixed
interest rates and from 3.25% to 6.50% 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.

NEW ACCOUNTING STANDARDS
In 1998,  the  Company  adopted  Statement  of  Financial  Accounting  Standards
("SFAS") No. 130, "Reporting  Comprehensive  Income."  Comprehensive income is a
measurement  of  certain  changes  in  shareholder's  equity  that  result  from
transactions   and  other   economic   events  other  than   transactions   with
shareholders.  For the Company, these consist of changes in unrealized gains and
losses on the investment portfolio (See Note 9).

In 1998,  the Company  adopted SFAS No. 131,  "Disclosures  about Segments of an
Enterprise  and Related  Information."  SFAS No. 131  redefines how segments are
determined  and  requires  additional  segment  disclosures  for both annual and
interim  financial  reporting.  The  Company has  identified  itself as a single
operating segment.

                                      F-8
<PAGE>


PENDING ACCOUNTING STANDARDS
In December 1997, the Accounting  Standards  Executive Committee of the American
Institute of Certified Public Accountants ("AICPA") issued Statement of Position
("SOP")   97-3,   "Accounting   by   Insurance   and   Other   Enterprises   for
Insurance-related  Assessments."  The SOP is required to be adopted in 1999. The
SOP  provides   guidance   concerning   when  to   recognize  a  liability   for
insurance-related  assessments  and how those  liabilities  should be  measured.
Specifically,  insurance-related assessments should be recognized as liabilities
when all of the  following  criteria  have been met: 1) an  assessment  has been
imposed or it is  probable  that an  assessment  will be  imposed,  2) the event
obligating an entity to pay an assessment  has occurred and 3) the amount of the
assessment can be reasonably estimated.  The Company is currently evaluating the
effects of this SOP on its accounting for insurance-related assessments. Certain
information required for compliance is not currently available and therefore the
Company is studying  alternatives  for  estimating  the  accrual.  In  addition,
industry  groups are working to improve the information  available.  Adoption of
this  standard is not  expected to be material to the results of  operations  or
financial position of the Company.


3.    RELATED PARTY TRANSACTIONS

REINSURANCE
The Company has  reinsurance  agreements  whereby  substantially  all  premiums,
contract charges,  credited  interest,  policy benefits and certain expenses are
ceded  to ALIC  and  reflected  net of such  reinsurance  in the  statements  of
operations  and  comprehensive  income.  The  amounts  shown  in  the  Company's
statements of operations  and  comprehensive  income relate to the investment of
those  assets  of  the  Company  that  are  not  transferred  under  reinsurance
agreements.  Reinsurance recoverable and the related reserve for life-contingent
contract  benefits  and  contracholder  funds  are  reported  separately  in the
statements  of  financial  position.  The  Company  continues  to  have  primary
liability as the direct insurer for risks reinsured.

Investment  income earned on the assets which support  contractholder  funds and
the  reserve  for  life-contingent  contract  benefits  is not  included  in the
Company's  financial  statements as those assets are owned and managed under the
terms of reinsurance agreements.  The following amounts were ceded to ALIC under
reinsurance agreements.

                                           YEAR ENDED DECEMBER 31,
                                           -----------------------
($ in thousands)                         1998      1997       1996
                                         ----      ----       ----

Premiums                              $  2,528   $  1,979   $  3,775
Contract charges                       102,218     83,559     60,744
Credited interest, policy benefits,
     and certain expenses              217,428    201,526    218,088


BUSINESS  OPERATIONS 
The Company utilizes services  provided by AIC and ALIC and business  facilities
owned or leased, and operated by AIC in conducting its business activities.  The
Company reimburses AIC and ALIC for the operating expenses incurred 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  $26,230,  $23,978  and  $26,583  in  1998,  1997  and  1996,
respectively.  Of these costs, the Company retains  investment related expenses.
All other costs are ceded to ALIC under reinsurance agreements.

                                      F-9
<PAGE>
 

4.  EXCLUSIVE DISTRIBUTION AGREEMENT

The  Company  and ALIC have a  strategic  alliance  with Dean Witter to develop,
market and distribute  proprietary  annuity and life insurance  products through
Morgan Stanley Dean Witter Financial Advisors. Affiliates of Dean Witter are the
investment  managers  for the Morgan  Stanley  Dean Witter  Variable  Investment
Series, Morgan Stanley Universal Funds, Inc. and the Van Kampen American Capital
Life Investment  Trust,  the funds in which the assets of the Separate  Accounts
are invested.

Under the terms of the  strategic  alliance,  the Company has agreed to use Dean
Witter as an  exclusive  distribution  channel for the  Company's  products.  In
addition to the Company's  products,  Dean Witter  markets other  products which
compete with those of the  Company.  The  strategic  alliance is  cancelable  by
either party,  however, the Company believes the benefits derived by Dean Witter
will preserve the alliance.  If Dean Witter would choose to cancel the alliance,
existing contracts and policies would not be affected.


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
                                                     COST      GAINS     LOSSES      VALUE
                                                  ----------   -------   -------    -------
<S>                                                  <C>       <C>       <C>        <C>    

AT DECEMBER 31, 1998
U.S. government and agencies                         $ 8,648   $ 1,469   $    --    $10,117
Municipal                                                590        11        --        601
Corporate                                             33,958     1,634       (16)    35,576
Mortgage-backed securities                            37,960     2,250      (168)    40,042
                                                     -------   -------   -------    -------   
     Total fixed income securities                   $81,156   $ 5,364   $  (184)   $86,336
                                                     =======   =======   =======    =======

AT DECEMBER 31, 1997
U.S. government and agencies                         $ 8,638   $   823   $    --    $ 9,461
Municipal                                              1,143        28        --      1,171
Corporate                                             25,913       897       (12)    26,798
Mortgage-backed securities                            36,797     2,315      (140)    38,972
                                                     -------   -------   -------    -------   
     Total fixed income securities                   $72,491   $ 4,063   $  (152)   $76,402
                                                     =======   =======   =======    =======
</TABLE>

                                      F-10
<PAGE>
 

SCHEDULED MATURITIES
The scheduled  maturities for fixed income securities are as follows at December
31, 1998:

                                                    AMORTIZED    FAIR
                                                      COST      VALUE

Due in one year or less                              $ 1,443   $ 1,452
Due after one year through five years                  7,546     7,950
Due after five years through ten years                26,008    27,429
Due after ten years                                    8,199     9,463
                                                     -------   -------   
                                                      43,196    46,294
Mortgage-backed securities                            37,960    40,042
                                                     -------   -------   
      Total                                          $81,156   $86,336
                                                     =======   =======

Actual  maturities may differ from those scheduled as a result of prepayments by
the issuers.


NET INVESTMENT INCOME
YEAR ENDED DECEMBER 31,                             1998      1997        1996
                                                    ----      ----        ----

Fixed income securities                            $ 5,616   $ 5,364    $ 4,675
Short-term investments                                 190        84        390
                                                   -------   -------    -------
    Investment income, before expense                5,806     5,448      5,065
    Investment expense                                 115       302        177
                                                   -------   -------    -------
    Net investment income                          $ 5,691   $ 5,146    $ 4,888
                                                   =======   =======    =======

REALIZED CAPITAL GAINS AND LOSSES
YEAR ENDED DECEMBER 31,                             1998      1997       1996
                                                    ----      ----       ----

Fixed income securities                            $     2   $   (70)   $   (22)
Short-term investments                                  --         2          2
                                                   -------   -------    -------
    Realized capital gains and losses                    2       (68)       (20)
    Income tax                                          (1)       24          7
                                                   -------   -------    -------
    Realized capital gains and losses, after tax   $     1   $   (44)   $   (13)
                                                   =======   =======    =======

Excluding calls and  prepayments,  gross losses of $9, $70 and $32 were realized
on sales of fixed income securities during 1998, 1997 and 1996, respectively.

                                      F-11
<PAGE>

UNREALIZED NET CAPITAL GAINS
Unrealized   net  capital   gains  on  fixed  income   securities   included  in
shareholder's equity at December 31, 1998 are as follows:

<TABLE>
<CAPTION>

                                 COST/
                               AMORTIZED     FAIR      GROSS UNREALIZED     UNREALIZED
                                 COST        VALUE      GAINS     LOSSES     NET GAINS
                               --------    --------   --------   --------    --------
<S>                            <C>         <C>        <C>        <C>         <C>    

Fixed income securities        $ 81,156    $ 86,336   $  5,364   $   (184)   $  5,180
                               ========    ========   ========   ========
Deferred income taxes                                                          (1,813)
                                                                             --------
Unrealized net capital gains                                                 $  3,367
                                                                             ========

</TABLE>

CHANGE IN UNREALIZED NET CAPITAL GAINS
YEAR ENDED DECEMBER 31,                    1998       1997       1996
                                          -------    -------    -------

  Fixed income securities                 $ 1,269    $ 1,932    $(2,108)
  Deferred income taxes                      (444)      (676)       737
                                          -------    -------    -------
  Increase (decrease) in unrealized net
   capital gains                          $   825    $ 1,256    $(1,371)
                                          =======    =======    =======


SECURITIES ON DEPOSIT
At December 31, 1998,  fixed income  securities  with a carrying value of $9,188
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  presented  below 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  significant  assets
(including   reinsurance   recoverable)  and  liabilities  (including  universal
life-type  insurance  reserves and  deferred  income  taxes) are not  considered
financial  instruments  and are not  carried  at fair  value.  Other  assets and
liabilities considered financial instruments, such as accrued investment income,
are  generally  of a short-term  nature.  Their  carrying  values are assumed to
approximate fair value.

FINANCIAL ASSETS
The  carrying  value and fair value of  financial  assets at December 31, are as
follows:

                                  1998                      1997
                                  ----                      ----
                           CARRYING       FAIR       CARRYING      FAIR
                            VALUE         VALUE        VALUE       VALUE
                            -----         -----        -----       -----

Fixed income securities   $   86,336   $   86,336   $   76,402   $   76,402
Short-term investments         5,083        5,083        3,031        3,031
Separate Accounts          7,031,083    7,031,083    5,719,203    5,719,203


                                      F-12
<PAGE>


Fair values for fixed income  securities are based on quoted market prices where
available. Non-quoted securities are valued based on discounted cash flows using
current interest rates for similar securities. Short-term investments are highly
liquid  investments  with  maturities of less than one year whose carrying value
approximates fair value.  Separate Accounts assets are carried in the statements
of financial position at fair value based on quoted market prices.


FINANCIAL LIABILITIES
The carrying  value and fair value of financial  liabilities at December 31, are
as follows:
                                    1998                      1997
                                    ----                      ----
                             CARRYING      FAIR        CARRYING      FAIR
                              VALUE        VALUE         VALUE       VALUE
                              -----        -----         -----       -----
Contractholder funds on
     investment contracts   $1,839,114   $1,814,684   $1,977,479   $1,951,214
Separate Accounts            7,031,083    7,031,083    5,719,203    5,719,203

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
Accounts liabilities are carried at the fair value of the underlying assets.


7.    INCOME TAXES

The Company joins the Corporation and its other eligible  domestic  subsidiaries
(the "Allstate Group") in the filing of a consolidated federal income tax return
and is party to a federal  income tax  allocation  agreement  (the "Allstate Tax
Sharing Agreement").  Under the Allstate Tax Sharing Agreement, the Company pays
to or receives from the  Corporation  the amount,  if any, by which the Allstate
Group's  federal  income tax liability is affected by virtue of inclusion of the
Company in the consolidated federal income tax return. Effectively, this results
in the Company's annual income tax provision being computed,  with  adjustments,
as if the Company filed a separate return.

Prior to Sears, Roebuck and Co.'s ("Sears")  distribution ("Sears distribution")
on  June  30,  1995  of  its  80.3%   ownership  in  the  Corporation  to  Sears
shareholders,  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.

                                      F-13
<PAGE>


As a result of the Sears distribution, the Allstate Group was no longer included
in  the  Sears  Tax  Group,  and  the  Tax  Sharing  Agreement  was  terminated.
Accordingly,  the Allstate  Group and Sears Group entered into a new tax sharing
agreement,  which adopts many of the principles of the Tax Sharing Agreement and
governs their  respective  rights and obligations with respect to federal income
taxes for all periods prior to the Sears  distribution,  including the treatment
of audits of tax returns for such periods.

The Internal  Revenue  Service  ("IRS") has completed its review of the Allstate
Group's  federal  income tax returns  through the 1993 tax year.  Any adjustment
that may result from IRS  examinations of tax returns are not expected to have a
material impact on the financial position, liquidity or results of operations of
the Company.

The components of the deferred income tax assets and liabilities at December 31,
are as follows:

                                              1998       1997 
                                              ----       ---- 

DEFERRED ASSETS
    Separate Accounts                        $  --      $   149
                                             -------    -------

DEFERRED LIABILITIES
    Difference in tax bases of investments    (1,503)    (1,454)
    Unrealized net capital gains              (1,813)    (1,369)
                                             -------    -------
         Total deferred liabilities           (3,316)    (2,823)
                                             -------    -------
         Net deferred liability              $(3,316)   $(2,674)
                                             =======    =======

The  components  of income tax  expense for the year ended  December  31, are as
follows:

                                 1998     1997       1996
                                 ----     ----       ----

Current                        $ 1,797   $ 1,843    $ 1,642
Deferred                           198       (87)        24
                               -------   -------    -------
    Total income tax expense   $ 1,995   $ 1,756    $ 1,666
                               =======   =======    =======

The Company paid income taxes of $129, $2,236 and $2,308 in 1998, 1997 and 1996,
respectively.  The Company had a current income tax liability of $1,830 and $162
at December 31, 1998 and 1997, respectively.

                                      F-14
<PAGE>
 

A  reconciliation  of the  statutory  federal  income tax rate to the  effective
income tax rate on income from  operations for the year ended December 31, is as
follows:

                                        1998        1997      1996
                                       ------      ------    ------

Statutory federal income tax rate       35.0%      35.0%      35.0%
Tax-exempt income                       (0.2)      (0.4)      (0.6)
Other                                    0.2        --        (0.2)
                                       ------     ------     ------
Effective income tax rate               35.0%      34.6%      34.2%
                                       ======     ======     ======

Prior to January 1, 1984,  the Company was entitled to exclude  certain  amounts
from taxable  income and  accumulate  such amounts in a  "policyholder  surplus"
account.  The balance in this account at December 31, 1998,  approximately  $16,
will result in federal income taxes payable of $6 if distributed by the Company.
No  provision  for taxes has been made as the Company has no plan to  distribute
amounts  from this  account.  No  further  additions  to the  account  have been
permitted since the Tax Reform Act of 1984.

8.       STATUTORY FINANCIAL INFORMATION

PERMITTED STATUTORY ACCOUNTING PRACTICES
The Company  prepares its statutory  financial  statements  in  accordance  with
accounting  principles  and  practices  prescribed  or  permitted by the Arizona
Department of Insurance.  Prescribed  statutory  accounting  practices include a
variety of publications of the National  Association of Insurance  Commissioners
("NAIC"), as well as state laws,  regulations and general  administrative rules.
Permitted statutory  accounting practices encompass all accounting practices not
so prescribed.  The Company does not follow any permitted  statutory  accounting
practices that have a significant  impact on statutory  surplus or statutory net
income.

The NAIC's codification initiative has produced a comprehensive guide of revised
statutory accounting  principles.  While the NAIC has approved a January 1, 2001
implementation date for the newly developed  guidance,  companies must adhere to
the implementation date adopted by their state of domicile.  The Company's state
of domicile,  Arizona,  is continuing its comparison of codification and current
statutory  accounting  requirements to determine necessary revisions to existing
state laws and regulations. The requirements are not expected to have a material
impact on the statutory surplus of the Company.

                                      F-15
<PAGE>


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 the Company 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 1999 without  prior  approval of the Arizona  Department  of Insurance is
$3,518.

9.    OTHER COMPREHENSIVE INCOME

The components of other comprehensive income on a pretax and after-tax basis for
the year ended December 31, are as follows:

<TABLE>
<CAPTION>


                                                 1998                            1997                           1996
                                 --------------------------------    ----------------------------  -----------------------------
                                                           After-                         After-                         After-
                                     Pretax      Tax        tax      Pretax      Tax       tax      Pretax       Tax      tax
                                     ------      ---        ---      ------      ---       ---      ------       ---      ---
<S>                                 <C>        <C>        <C>        <C>       <C>        <C>       <C>        <C>       <C>

Unrealized capital gains
 and losses:
- ---------------------------------
Unrealized holding gains
   (losses) arising during
   the period                       $ 1,271    $  (445)   $   826    $ 1,862   $  (652)   $ 1,210   $(2,130)   $   745   $(1,385)
Less:  reclassification
   adjustment for realized
   net capital gains
   included in net income                 2         (1)         1        (70)       24        (46)      (22)         8       (14)
                                    -------    -------    -------    -------   -------    -------   -------    -------   -------
Unrealized net capital
   gains (losses)                     1,269       (444)       825      1,932      (676)     1,256    (2,108)       737    (1,371)
                                    -------    -------    -------    -------   -------    -------   -------    -------   -------
Other comprehensive
   income                           $ 1,269    $  (444)   $   825    $ 1,932   $  (676)   $ 1,256   $(2,108)   $   737   $(1,371)
                                    =======    =======    =======    =======   =======    =======   =======    =======   =======

</TABLE>


10.      COMMITMENTS AND CONTINGENT LIABILITIES

REGULATION AND LEGAL PROCEEDINGS
The Company's business is subject to the effects of a changing social,  economic
and regulatory  environment.  Public and regulatory  initiatives have varied and
have included employee benefit regulations, removal of barriers preventing banks
from  engaging  in the  securities  and  insurance  business,  tax  law  changes
affecting  the taxation of insurance  companies,  the tax treatment of insurance
products  and its  impact  on the  relative  desirability  of  various  personal
investment  vehicles,  and proposed legislation to prohibit the use of gender in
determining  insurance  rates and  benefits.  The ultimate  changes and eventual
effects, if any, of these initiatives are uncertain.

From time to time the Company is involved in pending and  threatened  litigation
in the normal  course of its business in which  claims for monetary  damages are
asserted. In the opinion of management,  the ultimate liability, if any, arising
from such pending or  threatened  litigation  is not expected to have a material
effect on the results of  operations,  liquidity  or  financial  position of the
Company.


                                      F-16
<PAGE>

                        NORTHBROOK LIFE INSURANCE COMPANY
                            SCHEDULE IV--REINSURANCE
                                ($ IN THOUSANDS)


                                   GROSS                     NET   
YEAR ENDED DECEMBER 31, 1998       AMOUNT      CEDED        AMOUNT
- ----------------------------       ------      -----        ------

Life insurance in force          $ 494,256   $ 494,256    $   --
                                 =========   =========    =========

Premiums and contract charges:
         Life and annuities      $ 104,746   $ 104,746    $   --
                                 =========   =========    =========


                                   GROSS                     NET   
YEAR ENDED DECEMBER 31, 1997       AMOUNT      CEDED        AMOUNT
- ----------------------------       ------      -----        ------

Life insurance in force          $ 515,890   $ 515,890    $   --
                                 =========   =========    ========= 
                                                                          
Premiums and contract charges:
         Life and annuities      $  85,538   $  85,538    $   --
                                 =========   =========    =========
 
                                   GROSS                     NET   
YEAR ENDED DECEMBER 31, 1996       AMOUNT      CEDED        AMOUNT
- ----------------------------       ------      -----        ------


Life insurance in force          $ 556,242   $ 556,242    $   --
                                 =========   =========    ==========

Premiums and contract charges: 
         Life and annuities      $  64,519   $  64,519    $   --
                                 =========   =========    ==========


                                      F-17

<PAGE>

                       NORTHBROOK VARIABLE ANNUITY ACCOUNT

                  Financial Statements as of December 31, 1998
                  and the periods ended December 31, 1998 and
                             December 31, 1997, and
                          Independent Auditors' Report




<PAGE>



NORTHBROOK VARIABLE ANNUITY ACCOUNT

TABLE OF CONTENTS
- --------------------------------------------------------------------------------

                                                                         Page

INDEPENDENT AUDITORS' REPORT                                               1


STATEMENTS OF NET ASSETS AS OF DECEMBER 31, 1998 FOR THE FOLLOWING:        2

   Investments in the Morgan Stanley Dean Witter Variable 
    Investment Series Portfolios:
       Money Market
       High Yield
       Equity
       Quality Income Plus
       Strategist
       Dividend Growth
       Utilities
       European Growth
       Capital Growth
       Global Dividend Growth
       Pacific Growth
       Capital Appreciation
       Income Builder


STATEMENTS OF OPERATIONS FOR THE FOLLOWING:

FOR THE YEAR ENDED DECEMBER 31, 1998                                      
   Investments in the Morgan Stanley Dean Witter Variable 
    Investment Series Portfolios:
       Money Market                                                       3
       High Yield
       Equity
       Quality Income Plus
       Strategist
       Dividend Growth
       Utilities                                                          4
       European Growth
       Capital Growth
       Global Dividend Growth
       Pacific Growth
       Capital Appreciation
       Income Builder



<PAGE>

NORTHBROOK VARIABLE ANNUITY ACCOUNT

TABLE OF CONTENTS
- --------------------------------------------------------------------------------
                                                                  
                                                                          Page

STATEMENTS OF CHANGES IN NET ASSETS FOR THE FOLLOWING:
 
FOR THE YEAR ENDED DECEMBER 31, 1998                                      
   Investments in the Morgan Stanley Dean Witter Variable 
    Investment Series Portfolios:
       Money Market                                                       5
       High Yield
       Equity
       Quality Income Plus
       Strategist
       Dividend Growth
       Utilities                                                          6
       European Growth
       Capital Growth
       Global Dividend Growth
       Pacific Growth
       Capital Appreciation
       Income Builder
FOR THE YEAR ENDED DECEMBER 31, 1997                                      
   Investments in the Dean Witter Variable 
    Investment Series Portfolios
       Money Market                                                       7
       High Yield
       Equity
       Quality Income Plus
       Strategist
       Dividend Growth
       Utilities                                                          8
       European Growth
       Capital Growth
       Global Dividend Growth
       Pacific Growth
FOR THE PERIOD JANUARY 21, 1997  TO DECEMBER 31, 1997                     
   Investments in the Dean Witter Variable Investment 
    Series Portfolios
       Capital Appreciation
       Income Builder


NOTES TO FINANCIAL STATEMENTS                                             9-10



<PAGE>


INDEPENDENT AUDITORS' REPORT


To the Board of Directors and Shareholder of
Northbrook Life Insurance Company:

We  have  audited  the  accompanying  statements  of net  assets  of each of the
sub-accounts  ("portfolios" for purposes of this report), listed in the table of
contents,  that comprise Northbrook Variable Annuity Account (the "Account"),  a
Separate  Account of  Northbrook  Life  Insurance  Company,  an affiliate of The
Allstate  Corporation,  as of December 31, 1998,  and the related  statements of
operations and changes in net assets for the applicable periods indicated in the
table of contents.  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 audits 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, 1998. 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 each of the portfolios,  listed in the table
of contents,  that comprise the Account as of December 31, 1998, and the results
of their operations and the changes in their net assets for each of the periods,
indicated  in the table of  contents,  in  conformity  with  generally  accepted
accounting principles.



/s/ Deloitte & Touche LLP

Chicago, Illinois
March 18, 1999






                                       1
<PAGE>


NORTHBROOK VARIABLE ANNUITY ACCOUNT

STATEMENTS OF NET ASSETS
DECEMBER 31, 1998
- --------------------------------------------------------------------------------

($ and shares in thousands)

ASSETS
Investments in the Morgan Stanley Dean Witter 
   Variable Investment Series Portfolios:                                      
       Money Market, 19,462 shares (cost $19,462)                     $   19,462
       High Yield, 3,002 shares (cost $20,281)                            15,220
       Equity, 1,416 shares (cost $33,032)                                54,618
       Quality Income Plus, 1,668 shares (cost $16,976)                   18,344
       Strategist, 2,238 shares (cost $26,759)                            37,240
       Dividend Growth, 2,824 shares (cost $37,482)                       62,501
       Utilities, 1,049 shares (cost $13,375)                             22,293
       European Growth, 476 shares (cost $9,175)                          12,949
       Capital Growth, 151 shares (cost $2,385)                            3,073
       Global Dividend Growth, 531 shares (cost $6,143)                    7,342
       Pacific Growth, 293 shares (cost $2,265)                            1,510
       Capital Appreciation, 34 shares (cost $363)                           357
       Income Builder, 55 shares (cost $615)                                 630
                                                                      ----------

           Total assets                                                  255,539

LIABILITIES
Payable to Northbrook Life Insurance Company:
  Accrued contract maintenance charges                                        71
                                                                      ----------

           Net assets                                                 $  255,468
                                                                      ==========


See notes to financial statements.








                                       2
<PAGE>


<TABLE>
<CAPTION>

NORTHBROOK VARIABLE ANNUITY ACCOUNT


STATEMENTS OF OPERATIONS
- --------------------------------------------------------------------------------------------------------------------- 

 ($ in thousands)
                                                      MORGAN STANLEY DEAN WITTER VARIABLE INVESTMENT SERIES PORTFOLIOS
                                                      ---------------------------------------------------------------
                                                                    FOR THE YEAR ENDED DECEMBER 31, 1998
                                                      ---------------------------------------------------------------
                                                                                       Quality                       
                                                       Money      High                  Income    Strate-    Dividend
                                                       Market     Yield      Equity      Plus      gist       Growth 
                                                      ---------------------------------------------------------------
<S>                                                   <C>        <C>        <C>        <C>        <C>        <C>

INVESTMENT INCOME
Dividends                                             $  1,587   $  2,799   $  6,563   $  1,208   $  4,353   $  7,170
Charges from Northbrook Life Insurance Company:
  Mortality and expense risk                              (189)      (172)      (521)      (191)      (370)      (657)
                                                      --------   --------   --------   --------   --------   --------

      Net investment income                              1,398      2,627      6,042      1,017      3,983      6,513

REALIZED AND UNREALIZED GAINS (LOSSES)
ON INVESTMENTS
  Realized gains (losses) from sales of investments:
    Proceeds from sales                                  9,973      6,011     14,705      6,394     11,793     17,301
    Cost of investments sold                             9,973      6,983      8,686      5,599      8,426      9,623
                                                      --------   --------   --------   --------   --------   --------

      Net realized gains (losses)                           --       (972)     6,019        795      3,367      7,678


    Change in unrealized gains (losses)                     --     (1,702)     2,145        (46)     1,470     (5,466)
                                                      --------   --------   --------   --------   --------   --------

      Net gains (losses) on investments                     --     (2,674)     8,164        749      4,837      2,212
                                                      --------   --------   --------   --------   --------   --------

CHANGE IN NET ASSETS RESULTING FROM
OPERATIONS                                            $  1,398   $    (47)  $ 14,206   $  1,766   $  8,820   $  8,725
                                                      ========   ========   ========   ========   ========   ========
<FN>

See notes to financial statements.

</FN>
</TABLE>






                                       3
<PAGE>


<TABLE>
<CAPTION>

NORTHBROOK VARIABLE ANNUITY ACCOUNT


STATEMENTS OF OPERATIONS
- --------------------------------------------------------------------------------------------------------------------------------

 ($ in thousands)
                                                           MORGAN STANLEY DEAN WITTER VARIABLE INVESTMENT SERIES PORTFOLIOS
                                                      --------------------------------------------------------------------------
                                                                           FOR THE YEAR ENDED DECEMBER 31, 1998
                                                      --------------------------------------------------------------------------
                                                                                        Global               Capital
                                                       Utili-    European    Capital   Dividend   Pacific    Appreci-   Income
                                                        ties      Growth     Growth     Growth    Growth      ation     Builder
                                                      --------   --------   --------   --------   --------   --------   --------
<S>                                                   <C>        <C>        <C>        <C>        <C>        <C>        <C>

INVESTMENT INCOME
Dividends                                             $  1,655   $  1,013   $    233   $  1,046   $     80   $      4   $     46
Charges from Northbrook Life Insurance Company:
  Mortality and expense risk                              (210)      (137)       (30)       (83)       (14)        (4)        (8)
                                                      --------   --------   --------   --------   --------   --------   --------

      Net investment income                              1,445        876        203        963         66         --         38


REALIZED AND UNREALIZED GAINS (LOSSES)
ON INVESTMENTS
  Realized gains (losses) from sales of investments:
    Proceeds from sales                                  6,180      6,065      1,231      3,264        743        443        488
    Cost of investments sold                             3,493      4,136      1,000      2,753      1,282        461        450
                                                      --------   --------   --------   --------   --------   --------   --------

      Net realized gains (losses)                        2,687      1,929        231        511       (539)       (18)        38


    Change in unrealized gains (losses)                    664       (133)        78       (621)       263        (19)       (40)
                                                      --------   --------   --------   --------   --------   --------   --------

      Net gains (losses) on investments                  3,351      1,796        309       (110)      (276)       (37)        (2)
                                                      --------   --------   --------   --------   --------   --------   --------


CHANGE IN NET ASSETS RESULTING FROM
OPERATIONS                                            $  4,796   $  2,672   $    512   $    853   $   (210)  $    (37)  $     36
                                                      ========   ========   ========   ========   ========   ========   ========

<FN>

See notes to financial statements.
</FN>
</TABLE>





                                       4
<PAGE>

<TABLE>
<CAPTION>

NORTHBROOK VARIABLE ANNUITY ACCOUNT


STATEMENTS OF CHANGES IN NET ASSETS
- --------------------------------------------------------------------------------------------------------------------- 

 ($ in thousands)
                                                      MORGAN STANLEY DEAN WITTER VARIABLE INVESTMENT SERIES PORTFOLIOS
                                                      ---------------------------------------------------------------
                                                                    FOR THE YEAR ENDED DECEMBER 31, 1998
                                                      ---------------------------------------------------------------
                                                                                       Quality                       
                                                       Money      High                  Income    Strate-    Dividend
                                                       Market     Yield      Equity      Plus      gist       Growth 
                                                      ---------------------------------------------------------------
<S>                                                   <C>        <C>        <C>        <C>        <C>        <C>
FROM OPERATIONS
Net investment income                                 $  1,398   $  2,627   $  6,042   $  1,017   $  3,983   $  6,513
Net realized gains (losses)                                 --       (972)     6,019        795      3,367      7,678
Change in unrealized gains (losses)                         --     (1,702)     2,145        (46)     1,470     (5,466)
                                                      --------   --------   --------   --------   --------   --------

      Change in net assets resulting from operations     1,398        (47)    14,206      1,766      8,820      8,725

FROM CAPITAL TRANSACTIONS
Deposits                                                    95         60        229         20         34        111
Benefit payments                                           (98)      (611)      (722)      (498)      (560)      (537)
Payments on terminations                                (4,037)    (3,141)   (10,799)    (4,305)    (8,462)   (12,887)
Contract maintenance charges                                (9)       (10)       (24)        (9)       (21)       (30)
Transfers among the portfolios and with the
  Fixed account - net                                    3,589       (536)        79        336     (1,002)    (1,667)
                                                      --------   --------   --------   --------   --------   --------

      Change in net assets resulting from
        capital transactions                              (460)    (4,238)   (11,237)    (4,456)   (10,011)   (15,010)
                                                      --------   --------   --------   --------   --------   --------

INCREASE (DECREASE) IN NET ASSETS                          938     (4,285)     2,969     (2,690)    (1,191)    (6,285)

NET ASSETS AT BEGINNING OF PERIOD                       18,519     19,501     51,635     21,029     38,421     68,769
                                                      --------   --------   --------   --------   --------   --------

NET ASSETS AT END OF PERIOD                           $ 19,457   $ 15,216   $ 54,604   $ 18,339   $ 37,230   $ 62,484
                                                      ========   ========   ========   ========   ========   ========

<FN>

See notes to financial statements.

</FN>
</TABLE>




                                       5
<PAGE>

<TABLE>
<CAPTION>

NORTHBROOK VARIABLE ANNUITY ACCOUNT


STATEMENTS OF CHANGES IN NET ASSETS
- --------------------------------------------------------------------------------------------------------------------------------
 
($ in thousands)
                                                           MORGAN STANLEY DEAN WITTER VARIABLE INVESTMENT SERIES PORTFOLIOS
                                                      --------------------------------------------------------------------------
                                                                           FOR THE YEAR ENDED DECEMBER 31, 1998
                                                      --------------------------------------------------------------------------
                                                                                        Global               Capital
                                                       Utili-    European    Capital   Dividend    Pacific   Appreci-    Income
                                                        ties      Growth     Growth     Growth     Growth    ation       Builder
                                                      --------   --------   --------   --------   --------   --------   --------
<S>                                                   <C>        <C>        <C>        <C>        <C>        <C>        <C>

FROM OPERATIONS
Net investment income                                 $  1,445   $    876   $    203   $    963   $     66   $     --   $     38
Net realized gains (losses)                              2,687      1,929        231        511       (539)       (18)        38
Change in unrealized gains (losses)                        664       (133)        78       (621)       263        (19)       (40)
                                                      --------   --------   --------   --------   --------   --------   --------


      Change in net assets resulting from operations     4,796      2,672        512        853       (210)       (37)        36

FROM CAPITAL TRANSACTIONS
Deposits                                                    27         66          3         89         25         24          1
Benefit payments                                          (226)       (37)       (41)       (26)        (1)        --         --
Payments on terminations                                (4,551)    (1,928)      (542)    (1,657)      (232)       (56)      (271)
Contract maintenance charges                               (10)        (5)        (1)        (3)        (1)        --         --
Transfers among the portfolios and with the
  Fixed account - net                                      556       (439)        66     (1,291)       142       (197)       130
                                                      --------   --------   --------   --------   --------   --------   --------

      Change in net assets resulting from
        capital transactions                            (4,204)    (2,343)      (515)    (2,888)       (67)      (229)      (140)
                                                      --------   --------   --------   --------   --------   --------   --------

INCREASE (DECREASE) IN NET ASSETS                          592        329         (3)    (2,035)      (277)      (266)      (104)

NET ASSETS AT BEGINNING OF PERIOD                       21,694     12,616      3,075      9,375      1,786        623        733
                                                      --------   --------   --------   --------   --------   --------   --------

NET ASSETS AT END OF PERIOD                           $ 22,286   $ 12,945   $  3,072   $  7,340   $  1,509   $    357   $    629
                                                      ========   ========   ========   ========   ========   ========   ========

<FN>


See notes to financial statements.
</FN>
</TABLE>




                                       6
<PAGE>

<TABLE>
<CAPTION>

NORTHBROOK VARIABLE ANNUITY ACCOUNT


STATEMENTS OF CHANGES IN NET ASSETS
- --------------------------------------------------------------------------------------------------------------------- 

 ($ and units in thousands, except value per unit)
                                                           DEAN WITTER VARIABLE INVESTMENT SERIES PORTFOLIOS
                                                      ---------------------------------------------------------------
                                                                    FOR THE YEAR ENDED DECEMBER 31, 1997
                                                      ---------------------------------------------------------------
                                                                                       Quality                       
                                                       Money      High                  Income    Strate-    Dividend
                                                       Market     Yield      Equity      Plus      gist       Growth 
                                                      ---------------------------------------------------------------
<S>                                                   <C>        <C>        <C>        <C>        <C>        <C>

FROM OPERATIONS
Net investment income (loss)                          $    902   $  2,206   $  3,111   $  1,280   $  1,756   $  4,162
Net realized gains (losses)                                 --     (1,610)     4,021         99      2,928      8,915
Change in unrealized gains (losses)                         --      1,461      8,002        636        503      2,637
                                                      --------   --------   --------   --------   --------   --------

     Change in net assets resulting from operations        902      2,057     15,134      2,015      5,187     15,714

FROM CAPITAL TRANSACTIONS
Deposits                                                   171        128        158         41         58        519
Benefit payments                                          (352)      (501)      (686)      (429)      (867)      (732)
Payments on termination                                 (8,317)    (4,075)   (10,931)    (5,421)    (9,961)   (19,174)
Contract maintenance charges                               (11)       (14)       (28)       (11)       (24)       (38)
Transfers among the portfolios and with the
  Fixed Account - net                                    2,907        541      1,009     (1,982)      (715)     2,527
                                                      --------   --------   --------   --------   --------   --------

     Change in net assets resulting from capital
       transactions                                     (5,602)    (3,921)   (10,478)    (7,802)   (11,509)   (16,898)
                                                      --------   --------   --------   --------   --------   --------

INCREASE (DECREASE) IN NET ASSETS                       (4,700)    (1,864)     4,656     (5,787)    (6,322)    (1,184)

NET ASSETS AT BEGINNING OF PERIOD                       23,219     21,365     46,979     26,816     44,743     69,953
                                                      --------   --------   --------   --------   --------   --------

NET ASSETS AT END OF PERIOD                           $ 18,519   $ 19,501   $ 51,635   $ 21,029   $ 38,421   $ 68,769
                                                      ========   ========   ========   ========   ========   ========
Net asset value per unit at end of year               $  19.75   $  33.22   $  65.97   $  22.67   $  26.01   $  27.67
                                                      ========   ========   ========   ========   ========   ========

Units outstanding at end of year                           938        587        783        927      1,477      2,485
                                                      ========   ========   ========   ========   ========   ========


<FN>

See notes to financial statements.

</FN>
</TABLE>





                                       7
<PAGE>


<TABLE>
<CAPTION>


NORTHBROOK VARIABLE ANNUITY ACCOUNT


STATEMENTS OF CHANGES IN NET ASSETS
- --------------------------------------------------------------------------------------------------------------------------------

 ($ and units in thousands, except value per unit)
                                                                     DEAN WITTER VARIABLE INVESTMENT SERIES PORTFOLIOS
                                                      --------------------------------------------------------------------------
                                                                                                                FOR THE PERIOD
                                                                                                             JANUARY 21, 1997 TO
                                                              FOR THE YEAR ENDED DECEMBER 31, 1997            DECEMBER 31, 1997
                                                      ----------------------------------------------------   -------------------
                                                                                        Global               Capital
                                                       Utili-    European    Capital   Dividend   Pacific    Appreci-   Income
                                                        ties      Growth     Growth     Growth    Growth      ation     Builder
                                                      --------   --------   --------   --------   --------   --------   --------
<S>                                                   <C>        <C>        <C>        <C>        <C>        <C>        <C>

FROM OPERATIONS
Net investment income (loss)                          $    814   $    712   $    345   $    508   $     23   $     (4)  $     16
Net realized gains (losses)                              2,965      1,492        475        725       (290)         7         12
Change in unrealized gains (losses)                        974       (328)      (134)      (152)    (1,105)        13         55
                                                      --------   --------   --------   --------   --------   --------   --------

     Change in net assets resulting from operations      4,753      1,876        686      1,081     (1,372)        16         83

FROM CAPITAL TRANSACTIONS
Deposits                                                    27        188         58        192         27        139          3
Benefit payments                                          (425)       (61)        (8)       (83)       (28)        --         --
Payments on termination                                 (5,685)    (3,296)    (1,100)    (2,690)      (925)       (11)       (50)
Contract maintenance charges                               (11)        (6)        (1)        (5)        (1)        --         --
Transfers among the portfolios and with the
  Fixed Account - net                                   (4,665)       373        214        728     (1,127)       479        697
                                                      --------   --------   --------   --------   --------   --------   --------

     Change in net assets resulting from capital
       transactions                                    (10,759)    (2,802)      (837)    (1,858)    (2,054)       607        650
                                                      --------   --------   --------   --------   --------   --------   --------

INCREASE (DECREASE) IN NET ASSETS                       (6,006)      (926)      (151)      (777)    (3,426)       623        733

NET ASSETS AT BEGINNING OF PERIOD                       27,700     13,542      3,226     10,152      5,212         --         --
                                                      --------   --------   --------   --------   --------   --------   --------

NET ASSETS AT END OF PERIOD                           $ 21,694   $ 12,616   $  3,075   $  9,375   $  1,786   $    623   $    733
                                                      ========   ========   ========   ========   ========   ========   ========


Net asset value per unit at end of year               $  24.56   $  28.54   $  20.67   $  15.51   $   6.14   $  11.21   $  12.12
                                                      ========   ========   ========   ========   ========   ========   ========

Units outstanding at end of year                           883        442        149        604        291         56         60
                                                      ========   ========   ========   ========   ========   ========   ========


<FN>

See notes to financial statements.
</FN>
</TABLE>





                                       8
<PAGE>


NORTHBROOK VARIABLE ANNUITY ACCOUNT

NOTES TO FINANCIAL STATEMENTS
YEAR ENDED DECEMBER 31, 1998
- --------------------------------------------------------------------------------


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,  a wholly owned  subsidiary of
     Allstate  Insurance  Company,   which  is  wholly  owned  by  The  Allstate
     Corporation.

     Northbrook Life issues certain annuity contracts, the deposits of which are
     invested  at the  direction  of  the  contractholder  in  the  sub-accounts
     ("portfolios"  for  purposes of this  report)  that  comprise  the Account.
     Contractholders  bear all  investment  risk for  amounts  allocated  to the
     Account.  The portfolios  invest in the Morgan Stanley Dean Witter Variable
     Investment  Series (the "Fund").  The Account accepts  additional  deposits
     from existing contractholders, but is closed to new customers.

     Northbrook  Life  provides  insurance  and  administrative  services to the
     contractholders for a fee.

2.    SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

      VALUATION OF  INVESTMENTS - Investments  consist of shares of the Fund and
      are stated at fair value based on quoted  market  prices at  December  31,
      1998.

      INVESTMENT  INCOME - Investment  income consists of dividends  declared by
      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  portfolio  shares by the
      Account and the cost of such  shares,  which is  determined  on a weighted
      average basis.

      FEDERAL  INCOME  TAXES - The  Account  intends to qualify as a  segregated
      asset account as defined in the Internal  Revenue Code ("Code").  As such,
      the operations of the Account are included in the tax return of Northbrook
      Life. Northbrook Life is taxed as a life insurance company under the Code.
      No federal  income taxes are payable by the Account in 1998 as the Account
      did not generate taxable income.

3.    CONTRACT CHARGES

      Northbrook  Life  assumes  mortality  and  expense  risks  related  to the
      operations  of the Account and  deducts  charges  daily at a rate equal to
      1.0% per annum of the daily net  assets of the  Account.  Northbrook  Life
      guarantees that the rate of this charge will not increase over the life of
      the contract.

      Northbrook  Life deducts an annual contract  maintenance  charge of $30.

4.    FINANCIAL INSTRUMENTS

      The  investments  of the Account  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.


                                       9
<PAGE>


<TABLE>
<CAPTION>

5.  UNITS ISSUED AND REDEEMED

     (Units in whole amounts)
                                                                         Unit activity during 1998:          
                                                                         --------------------------
                                                Units                                               Units         Accumulation  
                                             Outstanding                                         Outstanding       Unit Value
                                             December 31,         Units           Units          December 31,     December 31,
                                                1997              Issued        Redeemed             1998              1998
                                            --------------   --------------   --------------    --------------   --------------
<S>                                         <C>              <C>              <C>               <C>              <C>    

Investments in Morgan Stanley Dean Witter
   Variable Investment Series Portfolios:
      Money Market                                 937,820          751,655         (743,962)          945,513   $        20.58
      High Yield                                   587,053           88,786         (182,911)          492,928            30.87
      Equity                                       782,723           69,942         (211,442)          641,223            85.15
      Quality Income Plus                          927,584          109,686         (283,064)          754,206            24.32
      Strategist                                 1,477,411           60,506         (396,413)        1,141,504            32.61
      Dividend Growth                            2,485,592          141,313         (619,706)        2,007,199            31.13
      Utilities                                    883,371          103,686         (245,086)          741,971            30.04
      European Growth                              441,921          150,526         (222,934)          369,513            35.03
      Capital Growth                               148,763           36,852          (60,106)          125,509            24.48
      Global Dividend Growth                       604,338           33,885         (213,477)          424,746            17.28
      Pacific Growth                               290,930          145,653         (159,582)          277,001             5.45
      Capital Appreciation                          55,544           23,432          (44,013)           34,963            10.22
      Income Builder                                60,458           29,552          (39,203)           50,807            12.39

</TABLE>



Units  relating to accrued  contract  maintenance  charges are included in units
redeemed.










                                       10


<PAGE>


                                    PART C
                               OTHER INFORMATION


b. EXHIBITS

(1)       Form of  Resolution  of the  Board of  Directors  of  Northbrook  Life
          Insurance  Company  authorizing  establishment of the Variable Annuity
          Account  (Previously filed in Post-Effective  Amendment No. 21 to this
          Registration Statement (File No. 002-82511) dated December 31, 1996.)

(2)       Not Applicable

(3)(a)    Underwriting    Agreement    (Incorporated    herein   by    reference
          Post-Effective  Amendment No. 13 to  Registration  Statement (File No.
          033-35412) dated December 31, 1996.)

(3)(b)    Form of General  Agency  Agreement  (Incorporated  herein by reference
          Post-Effective  Amendment No. 13 to  Registration  Statement (File No.
          033-35412) dated December 31, 1996.)

(4)       Specimen Contract

(5)       Form Application for a Contract

(6)(a)    Amended  and  Restated  Articles  of  Incorporation  and  Articles  of
          Redomestication  of Northbrook  Life Insurance  Company  (Incorporated
          herein by reference to Depositor's Form 10-K annual report dated March
          30, 1999.)

(6)(b)    Amended and Restated  By-laws of  Northbrook  Life  Insurance  Company
          (Incorporated  herein by  reference  to  Depositor's  Form 10-K annual
          report dated March 30, 1999.)

(7)       Not applicable

(8)       Participation Agreement (Previously filed in Post-Effective  Amendment
          No. 20 to this Registration Statement (File No. 002-82511) dated April
          30, 1996.)

(9)(a)    Opinion  and  Consent  of  General   Counsel   (Previously   filed  in
          Post-Effective  Amendment No. 20 to this Registration Statement (9)(b)
          Opinion and Consent of General Counsel

(10)(a)   Independent Auditors' Consent

(10)(b)   Consent of Freedman, Levy, Kroll & Simonds

(11)      Not Applicable

(12)      Form of Agreement to Purchase Shares (Incorporated herein by reference
          Post-Effective  Amendment No. 13 to  Registration  Statement (File No.
          033-35412) dated December 31, 1996.)


(13)      Performance  Data  Calculations  (Previously  filed in  Post-Effective
          Amendment No. 22 to this  Registration  Statement (File No. 002-82511)
          dated April 15, 1997.)

(14)      Not Applicable

(99)(a)   Powers of Attorney for Keith A. Hauschildt,  Kevin R. Slawin, Peter H.
          Heckman  and  Casey  J.  Sylla  (Previously  filed  in  Post-Effective
          Amendment No. 21 to this  Registration  Statement (File No. 002-82511)
          dated  December  31,  1996.)  (99)(b)  Powers of Attorney for Louis G.
          Lower, II, Michael J. Velotta, Thomas J. Wilson, II and John R. Hunter




25.  DIRECTORS AND OFFICERS OF THE DEPOSITOR

<TABLE>
<CAPTION>
NAME AND PRINCIPAL                          POSITION AND OFFICE WITH
BUSINESS ADDRESS                            DEPOSITOR OF THE ACCOUNT
<S>                                         <C>
Louis G. Lower, II                          Chairman of the Board, Chief Executive Officer
Thomas J. Wilson, II                        Director and Vice Chairman
Peter H. Heckman                            Director, President and Chief Operating Officer
Michael J. Velotta                          Director, Vice President, Secretary
                                              and  General Counsel
Sarah R. Donahue                            Director and Assistant 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
Timothy N. Vander Pas                       Director and Assistant Vice President
Marla G. Friedman                           Vice President
Karen C. Gardner                            Vice President
James P. Zils                               Treasurer
Keith A. Hauschildt                         Assistant Vice President and Controller
Ronald Johnson                              Assistant Vice President
Barry S. Paul                               Assistant Vice President
Robert N. Roeters                           Assistant Vice President
C. Nelson Strom                             Assistant Vice President and Corporate Actuary
Charles F. Thalheimer                       Assistant Vice President
Timothy N. Vander Pas                       Assistant Vice President
Patricia W. Wilson                          Assistant Vice President, Assistant Secretary
                                              and Assistant Treasurer
Joanne M. Derrig                            Assistant Secretary and Chief Compliance Officer
Emma M. Kalaidjian                          Assistant Secretary
Paul N. Kierig                              Assistant Secretary
Mary J. McGinn                              Assistant Secretary
Gregory C. Sernett                          Assistant Secretary
Brenda D. Sneed                             Assistant Secretary and Assistant General Counsel
Nancy M. Bufalino                           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

Incorporated  herein by reference to Annual Report on Form 10-K,  filed by the
Allstate Corporation on March 26, 1999 (File No. 1-11840).

27.  NUMBER OF CONTRACT OWNERS

As of  April  13,  1999,  there  were  3,877  nonqualified  contracts  and 397
qualified contracts.


<PAGE>

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
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 by such
director,  officer or  controlling  person in connection  with the  securities
being registered, the registrant will, unless in the opinion of is 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.

29.  PRINCIPAL UNDERWRITERS

(a)  Registrant's  principal  underwriter,  Dean Witter  Reynolds Inc., is the
principal underwriter for the following affiliated investment companies:

         Northbrook Variable Annuity Account II
         Northbrook Life Variable Life Separate Account A
         Allstate Life of New York Variable Annuity Account II
         Allstate Life of New York Variable Annuity Account

(b)  The directors and principal officers of the principal underwriter are:

<TABLE>
<CAPTION>
Name and Principal Business                                   Positions and Offices
Address* of Each Such Person                                  With Underwriter      
<S>                                                  <C>
Philip J. Purcell                                    Director, Chairman and Chief Executive Officer
Richard M. Demartini                                 Director, President and Chief Operating Officer
                                                       Dean Witter Capital
James F. Higgins                                     Director, President and Chief Operating Officer
                                                       Dean Witter Financial
Stephen R. Miller                                    Director and Senior Executive Vice President
Robert J. Dwyer                                      Director, Executive Vice President and
                                                       National Sales Director
Christine A. Edwards                                 Director, Executive Vice President,
                                                       Secretary and General Counsel
Mitchell M. Merin                                    Director, Executive Vice President and
                                                       Chief Administrative Officer
Richard F. Powers, II                                Director and Executive Vice President
Thomas C. Schneider                                  Director and Executive Vice President
William B. Smith                                     Director and Executive Vice President
Raymond J. Drop                                      Executive Vice President
Fredrick J. Frohne                                   Executive Vice President
E. Davisson Hardman, Jr.                             Executive Vice President
Jeremiah A. Mullins                                  Executive Vice President
John H. Schaffer                                     Executive Vice President
Robert B. Sculthorpe                                 Executive Vice President


<PAGE>

Anthony Basile                                       Senior Vice President
Ronald T. Carmen                                     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
Paul J. Dubow                                        Senior Vice President and Deputy General Counsel
Michael T. Gregg                                     Senior Vice President and Deputy General Counsel
Lorena J. Kern                                       Senior Vice President
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
Charles F. Vadala, Jr.                               Senior Vice President and Chief Financial Officer
Kelly McNamara                                       Senior Vice President and
                                                       Director of Governmental Affairs
Michael D. Browne                                    Assistant Secretary
Marilyn K. Cranney                                   Assistant Secretary
Sabrina Hurley                                       Assistant Secretary
</TABLE>

* The principal  business address of the above-named  individuals is Two World
Trade Center, New York, New York 10048.

(c) Compensation of Dean Witter Reynolds Inc.

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)
<S>                        <C>                      <C>                        <C>                   <C>
                           Net Underwriting
  Name of Principal          Discounts and          Compensation on             Brokerage
     Underwriter              Commissions              Redemption              Commissions           Compensation

    Dean Witter                                                                
    Reynolds Inc.                                                              

</TABLE>

30.  LOCATION OF ACCOUNTS AND RECORDS

The Depositor,  Northbrook Life Insurance Company,  is located at 3100 Sanders
Road, Northbrook,  Illinois 60062. The Distributor, Dean Witter Reynolds Inc.,
is located at Two World Trade Center, New York, New York 10048.

Each company  maintains  those accounts and records  required to be maintained
pursuant  to  Section  31(a)  of the  Investment  Company  Act and  the  rules
promulgated thereunder.

31.  MANAGEMENT SERVICES

None

32.  UNDERTAKINGS


<PAGE>

The  Registrant   undertakes  to  file  a  post-effective   amendment  to  the
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 toll-free
number  that an  applicant  can call 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.

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.

REPRESENTATION REGARDING CONTRACT EXPENSES

Northbrook  Life  Insurance  Company  represents  that the  fees  and  charges
deducted  under the Individual and Group  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 Insurance Company.


<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
amended  Registration  Statement  and has  caused  this  amended  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 the 27th day of April, 1999.

                                    NORTHBROOK VARIABLE ANNUITY ACCOUNT
                                                     (REGISTRANT)

                                    BY:     NORTHBROOK LIFE INSURANCE COMPANY
                                            (DEPOSITOR)

(SEAL)

Attest: /s/BRENDA D. SNEED                 By: /s/MICHAEL J. VELOTTA
        ------------------                     ---------------------
        Brenda D. Sneed                        Michael J. Velotta
        Assistant Secretary                    Vice President, Secretary and
        And Assistant General Counsel          General Counsel


As required by the Securities Act of 1933, this amended Registration Statement
has been  duly  signed  below  by the  following  Directors  and  Officers  of
Northbrook Life Insurance Company on the 27th day of April, 1999. 


 */LOUIS G. LOWER, II            Chairman of the Board, Chief
 --------------------            Executive Officer and Director
 Louis G. Lower, II              (Principal Executive Officer)

 /s/MICHAEL J. VELOTTA           Vice President, Secretary, General
 ---------------------           Counsel and Director
 Michael J. Velotta

 */THOMAS J. WILSON, II          Vice Chairman and Director
 ----------------------          (Principal Operating Officer)
 Thomas J. Wilson, II

 */PETER H. HECKMAN              President, Chief Operating Officer
 ------------------              and Director
 Peter H. Heckman

 */JOHN R. HUNTER                Director
 ----------------
 John R. Hunter

 */KEVIN R. SLAWIN               Vice President and Director
 -----------------               (Principal Financial Officer)
 Kevin R. Slawin

 */KEITH A. HAUSCHILDT           Assistant Vice President and Controller
 ---------------------           (Principal Accounting Officer)
 Keith A. Hauschildt

*/ By Michael J. Velotta,  pursuant to Power of Attorney,  previously filed or
filed herewith.


<PAGE>

                                 EXHIBIT INDEX

Exhibit     Description

(9)(b)      Opinion and Consent General Counsel

(10)(a)     Independent Auditors' Consent

(10)(b)     Consent of Freedman, Levy, Kroll & Simond

(99)(b)     Power of Attorney for Thomas J. Wilson, II




                                                                Exhibit (9)(b)

                          NORTHBROOK LIFE INSURANCE COMPANY
                          LAW AND REGULATION DEPARTMENT
                             3100 Sanders Road, J5B
                           Northbrook, Illinois 60062
                         Direct Dial Number 847-402-2400
                             Facsimile 847-402-4371


Michael J. Velotta                               Please direct reply to:
 Vice President, Secretary                       Post Office Box 3005
   and General Counsel                           Northbrook, Illinois 60065-3005

                                 April 14, 1998


TO:     NORTHBROOK LIFE INSURANCE COMPANY
        NORTHBROOK, ILLINOIS  60062

FROM:   MICHAEL J. VELOTTA
        VICE PRESIDENT, SECRETARY AND GENERAL COUNSEL

RE:     FORM N-4 REGISTRATION STATEMENT
        UNDER THE SECURITIES ACT OF 1933 AND THE INVESTMENT COMPANY ACT OF 1940
        FILE NO. 002-82511, 811-03688

        With  reference  to the  Registration  Statement  on Form  N-4  filed by
Northbrook Life Insurance Company (the "Company"),  as depositor, and Northbrook
Variable  Annuity  Account,  as  registrant,  with the  Securities  and Exchange
Commission covering the Flexible Premium Deferred Variable Annuity Contracts,  I
have examined such  documents  and such law as I have  considered  necessary and
appropriate,  and on the basis of such examination,  it is my opinion that as of
December 28, 1998:

1.      The Company is duly  organized and existing  under the laws of the State
        of Arizona and has been duly  authorized  to do business by the Director
        of Insurance of the State of Arizona.

2.      The  securities  registered  by the above  Registration  Statement  when
        issued will be valid, legal and binding obligations of the Company.

        I hereby  consent  to the  filing of this  opinion  as an exhibit to the
above  referenced  Registration  Statement  and to the use of my name  under the
caption  "Legal   Matters"  in  the  Prospectus   constituting  a  part  of  the
Registration Statement.

Sincerely,


/s/Michael J. Velotta
- -------------------------
Michael J. Velotta
Vice President, Secretary and
  General Counsel







                                                              Exhibit (10) (a)

                         INDEPENDENT AUDITORS' CONSENT


We consent to the use in this  Post-Effective  Amendment No. 23 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  19,  1999
relating  to the  financial  statements  and  the  related  financial  statement
schedule of Northbrook  Life Insurance  Company,  and our report dated March 18,
1999 relating to the financial statements of Northbrook Variable Annuity Account
contained in the Statement of Additional Information,  which are incorporated by
reference in the Prospectus of Northbrook Variable Annuity Account of Northbrook
Life Insurance Company that 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 26, 1999


                                                               Exhibit (10)(b)

Freedman, Levy, Kroll & Simonds

                                  CONSENT OF
                        FREEDMAN, LEVY, KROLL & SIMONDS

      We hereby  consent to the reference to our firm under the caption "Legal
Matters" in the prospectus contained in Post-Effective Amendment No. 23 to the
Form N-4 Registration  Statement of Northbrook  Variable Annuity Account (File
No. 002-82511).


                                            /s/FREEDMAN, LEVY, KROLL & SIMONDS

Washington, D.C.
April 26, 1999


<PAGE>

                                                               Exhibit (99)(b)

                               POWER OF ATTORNEY

                                WITH RESPECT TO
                       NORTHBROOK LIFE INSURANCE COMPANY

      Know  all men by  these  presents  that  Thomas  J.  Wilson,  II,  whose
signature  appears  below,  constitutes  and appoints  Louis G. Lower,  II and
Michael J. Velotta, each acting individually, his attorney-in-fact, with power
of  substitution  and in any and all  capacities,  to  sign  any  registration
statements and amendments  thereto for the Northbrook  Life Insurance  Company
and related  Contracts and to file the same,  with exhibits  thereto and other
documents  in  connection   therewith,   with  the   Securities  and  Exchange
Commission, hereby ratifying and confirming all that said attorney-in-fact, or
his substitute or substitutes, may do or cause to be done by virtue hereof.


                                                    APRIL 23, 1999
                                                    --------------
                                                    Date


                                                    /s/THOMAS J. WILSON, II
                                                    -----------------------
                                                    Thomas J. Wilson, II
                                                    Vice Chairman and Director



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