ANCHOR NATIONAL LIFE INSURANCE CO
POS AM, 1998-12-24
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<PAGE>   1


   
As filed with the Securities and Exchange Commission on December 24, 1998
                                        Registration No. 33-81476
- -------------------------------------------------------------------------
    

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

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

                                    FORM S-1
                             REGISTRATION STATEMENT
                        UNDER THE SECURITIES ACT OF 1933

   
                         POST-EFFECTIVE AMENDMENT NO. 5
    

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

                     ANCHOR NATIONAL LIFE INSURANCE COMPANY
             (Exact name of registrant as specified in its charter)

California            6311                           86-0198983
(State or other       (Primary Standard              (I.R.S. Employer
jurisdiction of       Industrial Classification      Identification No.)
incorporation or      Number)
organization)

                               1 SunAmerica Center
                       Los Angeles, California 90067-6022
                                 (310) 772-6000
               (Address, including zip code, and telephone number,
                      including area code, or registrant's
                          principal executive offices)


                            Susan L. Harris, Esquire
                     Anchor National Life Insurance Company
                               1 SunAmerica Center
                       Los Angeles, California 90067-6022
                                 (310) 772-6000
 (Name, address, including zip code, and telephone number, including area code
of agent for service)
                             ----------------------

        Appropriate date of commencement of proposed sale to the public:
    As soon as practicable after effectiveness of the Registration Statement
If any of the securities being registered on this Form are to be offered on a
delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933 check the following box. [X]

        The Registrant hereby amends this Registration Statement on such date or
dates as may be necessary to delay its effective date until the Registrant shall
file a further amendment which specifically states that this Registration
Statement shall thereafter become effective in accordance with Section 8(a) of
the Securities Act of 1933 or until the Registration Statement shall become
effective on such date as the Commission, acting pursuant to said Section 8(a),
shall determine.


<PAGE>   2
                              CROSS REFERENCE SHEET

                     ANCHOR NATIONAL LIFE INSURANCE COMPANY

                        Cross Reference Sheet Pursuant to

                           Regulation S-K, Item 501(b)
<TABLE>
<CAPTION>
Form S-1 Item Number and Caption            Heading in Prospectus
- -----------------------------------------------------------------------
<S>     <C>                                     <C>
1.      Forepart of the Registration
        Statement and Outside Front
        Cover Page of Prospectus............... Outside Front Cover Page

2.      Inside Front and Outside Back
        Cover Pages of Prospectus.............. Inside Front Cover

3.      Summary of Information, Risk
        Factors and Ratio of Earnings
        to Fixed Charges....................... Front Cover; Summary; Fixed
                                                Account Options

4.      Use of Proceeds........................ Description of the
                                                Company, the Separate
                                                Account and the General
                                                Account; Fixed Account
                                                Options; Purchases,
                                                Withdrawals and Contract
                                                Value

5.      Determination of Offering Price........ Not Applicable

6.      Dilution............................... Not Applicable

7.      Selling Security Holders............... Not Applicable

8.      Plan of Distribution................... Purchases, Withdrawals
                                                and Contract Value

9.      Description of Securities to be
        Registered............................. Description of the
                                                Contracts; Fixed
                                                Account Options;
                                                Contract Charges;
                                                Income Phase

10.     Interests of Named Experts
        and Counsel............................ Not Applicable

11.     Information with Respect to
        the Registrant......................... Description of the
                                                Company, the Separate
                                                Account and the General
                                                Account; Additional
                                                Information about the
                                                Company; Financial
                                                Statements

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

</TABLE>
<PAGE>   3
 
   
                            VISTA CAPITAL ADVANTAGE
    
 
   
                                   PROSPECTUS
    
   
                               DECEMBER 29, 1998
    
 
   
               FLEXIBLE PAYMENT GROUP DEFERRED ANNUITY CONTRACTS
    
 
   
                                   ISSUED BY
    
 
   
                     ANCHOR NATIONAL LIFE INSURANCE COMPANY
    
 
   
                               IN CONNECTION WITH
    
 
   
                          VARIABLE ANNUITY ACCOUNT TWO
    
 
   
       The annuity has 11 investment choices - 5 fixed account options and 6
variable investment portfolios listed below. The 5 fixed account options include
market value adjustment fixed accounts for specified periods of 1, 3, 5, 7 and
10 years. Each of the 6 variable investment portfolios invest solely in the
shares of one of the following currently available underlying Funds of Mutual
Fund Variable Annuity Trust:
    
 
   
<TABLE>
    <S>                                               <C>
    - International Equity                            - Asset Allocation
    - Capital Growth                                  - U.S. Government Income
    - Growth and Income                               - Money Market
</TABLE>
    
 
   
Additional Underlying Funds may be made available in the future.
    
 
   
        Please read this prospectus carefully before investing and keep it for
future reference. It contains important information about the Vista Variable
Annuity.
    
 
   
        To learn more about the annuity offered by this prospectus, obtain a
copy of the Statement of Additional Information ("SAI") dated December 29, 1998.
The SAI is on file with the Securities and Exchange Commission ("SEC") and is
incorporated by reference into this prospectus. The Table of Contents of the SAI
appears on page 43 of this prospectus. For a free copy of the SAI, call us at
(800) 90-VISTA or write to us at our Annuity Service Center, P.O. Box 54299, Los
Angeles, California 90054-0299.
    
 
   
        In addition, the SEC maintains a website (http://www.sec.gov) that
contains the SAI, materials incorporated by reference and other information
filed electronically with the SEC by Anchor National.
    
 
   
        ANNUITIES INVOLVING RISKS, INCLUDING POSSIBLE LOSS OF PRINCIPAL.
ANNUITIES ARE NOT A DEPOSIT OR OBLIGATION OF, OR GUARANTEED OR ENDORSED BY, ANY
BANK. THEY ARE NOT FEDERALLY INSURED BY THE FEDERAL DEPOSIT INSURANCE
CORPORATION, THE FEDERAL RESERVE BOARD OR ANY OTHER AGENCY.
    
 
   
        THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SEC, NOR
HAS THE SEC PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY
 
REPRESENTATION TO THE CONTRARY IS CRIMINAL.
    
   
    
<PAGE>   4
 
                               TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                                              PAGE
ITEM                                                          ----
<S>                                                           <C>
DEFINITIONS.................................................     3
SUMMARY.....................................................     4
FEE TABLES..................................................     7
EXAMPLES....................................................     8
CONDENSED FINANCIAL INFORMATION -- ACCUMULATION UNIT
  VALUES....................................................     9
PERFORMANCE DATA............................................     9
DESCRIPTION OF ANCHOR NATIONAL, THE SEPARATE ACCOUNT AND THE
  GENERAL ACCOUNT...........................................    10
     Anchor National Life Insurance Company.................    10
     Separate Account.......................................    11
     General Account........................................    11
VARIABLE PORTFOLIO OPTIONS..................................    11
     Voting Rights..........................................    12
     Substitution of Securities.............................    12
FIXED ACCOUNT OPTIONS.......................................    12
     Allocations............................................    12
     Market Value Adjustment ("MVA")........................    13
CONTRACT CHARGES............................................    13
     Insurance Charges......................................    13
     Withdrawal Charges.....................................    13
     Investment Charges.....................................    14
     Contract Maintenance Fee...............................    14
     Transfer Fee...........................................    14
     Premium Tax............................................    14
     Income Taxes...........................................    14
     Reduction or Elimination of Charges and Expenses, and
      Additional Amounts Credited...........................    14
     Free Withdrawal Amount.................................    15
     Nursing Home Waiver....................................    15
DESCRIPTION OF THE CONTRACTS................................    16
     Summary................................................    16
     Ownership..............................................    16
     Annuitant..............................................    16
     Modification of the Contract...........................    16
     Assignment.............................................    16
     Death Benefit..........................................    16
PURCHASES, WITHDRAWALS AND CONTRACT VALUE...................    18
     Purchase Payments......................................    18
     Automatic Dollar Cost Averaging Program................    18
     Asset Allocation Rebalancing...........................    19
     Principal Advantage Program............................    19
     Allocation of Purchase Payments........................    20
     Accumulation Units.....................................    20
     Free Look..............................................    21
     Transfer During the Accumulation Phase.................    21
     Distribution of Contracts..............................    22
     Withdrawals............................................    22
     Systematic Withdrawal Program..........................    23
     Minimum Contract Value.................................    23
INCOME PHASE................................................    23
     Annuity Date...........................................    23
     Income Options.........................................    23
     Transfers During the Income Phase......................    25
     Deferment of Payments..................................    25
ADMINISTRATION..............................................    25
TAXES.......................................................    26
     Annuity Contracts in General...........................    26
     Tax Treatment of Distributions -- Non-qualified
      Contracts.............................................    26
     Tax Treatment of Distributions -- Qualified
      Contracts.............................................    26
     Minimum Distributions..................................    27
     Diversification........................................    27
</TABLE>
    
 
                                        2
<PAGE>   5
 
   
<TABLE>
<CAPTION>
ITEM                                                          PAGE
                                                              ----
<S>                                                           <C>
ADDITIONAL INFORMATION ABOUT THE COMPANY....................    28
     Selected Consolidated Financial Data...................    28
MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
  AND RESULTS OF OPERATIONS.................................    29
PROPERTIES..................................................    38
DIRECTORS AND EXECUTIVE OFFICERS............................    38
EXECUTIVE COMPENSATION......................................    40
     Security Ownership of Certain Beneficial Owners and
      Management............................................    40
REGULATION..................................................    41
CUSTODIAN...................................................    41
LEGAL PROCEEDINGS...........................................    42
REGISTRATION STATEMENTS.....................................    42
INDEPENDENT ACCOUNTANTS.....................................    42
ADDITIONAL INFORMATION ABOUT THE SEPARATE ACCOUNT...........    43
FINANCIAL STATEMENTS........................................    43
APPENDIX A -- MARKET VALUE ADJUSTMENT ("MVA")...............   A-1
APPENDIX B -- WITHDRAWALS AND WITHDRAWAL CHARGES............   B-1
APPENDIX C -- PREMIUM TAXES.................................   C-1
</TABLE>
    
 
- --------------------------------------------------------------------------------
 
                                  DEFINITIONS
- --------------------------------------------------------------------------------
 
     The following terms, as used in this prospectus, have the indicated
meanings:
 
ACCUMULATION PHASE -- The period during which you invest money in your contract.
 
ACCUMULATION UNIT -- A unit of measurement which we use to calculate the value
of the variable portion of your contract during the Accumulation Phase.
 
ANNUITANT(S) -- The person(s) on whose life (lives) we base income payments.
 
ANNUITY DATE -- The date on which income payments begin, as selected by you.
 
ANNUITY UNIT(S) -- A measurement we use to calculate the amount of income
payments you receive from the variable portion of your contract during the
Income Phase.
 
BENEFICIARY -- The person designated to receive any benefits under the contract
if you or the Annuitant dies.
 
INCOME PHASE -- The period during which we make income payments to you.
 
IRS -- The Internal Revenue Service.
 
NON-QUALIFIED (CONTRACT) -- A contract purchased with after-tax dollars. In
general, these contracts are not under any pension plan, specially sponsored
program or individual retirement account ("IRA").
 
PURCHASE PAYMENTS -- The money you give us to buy the contract, as well as any
additional money you give us to invest in the contract after you own it.
 
QUALIFIED (CONTRACT) -- A contract purchased with pre-tax dollars. These
contracts are generally purchased under a pension plan, specially sponsored
program or IRA.
 
TRUST -- Mutual Fund Variable Annuity Trust, an open-end management investment
company.
 
UNDERLYING FUND(S) -- The underlying series of the Trust in which the Variable
Portfolios invest.
 
VARIABLE PORTFOLIO(S) -- The variable investment options available under the
contract. Each Variable Portfolio has its own investment objective and is
invested in the underlying investments of the Trust.
 
                                        3
<PAGE>   6
 
- --------------------------------------------------------------------------------
 
                                    SUMMARY
- --------------------------------------------------------------------------------
 
     This summary sets forth some of the more important points that you should
know and consider before purchasing the Vista Variable Annuity. The remainder of
the prospectus discusses the topics in more detail. We urge you to read it
carefully and retain it, and the prospectus for the Trust, for future reference.
 
WHAT IS AN ANNUITY CONTRACT?
 
     An annuity is a contract between you and an insurance company. You are the
owner of the contract. The contract provides three main benefits:
 
     - Tax Deferral: This means that you do not pay taxes on your earnings from
       the annuity until you withdraw them.
 
     - Death Benefit: If you die during the Accumulation Phase, the insurance
       company pays a death benefit to your Beneficiary.
 
     - Guaranteed Income: If elected, you receive a stream of income for your
       lifetime, or another available period you select.
 
     The Vista Variable Annuity is a contract between you and Anchor National
(the Company, Us, We). It is designed to help you invest on a tax deferred basis
and meet long-term financial goals, such as retirement funding.
 
     Like most annuities, this contract has an Accumulation Phase and an Income
Phase. During the Accumulation Phase, you invest money in your contract. Your
earnings are based on the investment performance of the Variable Portfolios you
allocate money to and/or the interest rate earned on fixed account options.
During the Income Phase, you will receive income payments from your annuity.
Your payments may be fixed in dollar amount, may vary with investment
performance of the Variable Portfolios or be a combination of both. Among other
factors, the amount of money you are able to accumulate in your contract during
the Accumulation Phase will determine the amount of your payments during the
Income Phase.
 
WHAT IS THE DIFFERENCE BETWEEN A VARIABLE ANNUITY AND A FIXED ANNUITY?
 
     A fixed annuity earns interest at a fixed rate guaranteed by the insurance
company. A variable annuity typically provides a fixed account option but also
provides Variable Portfolios. The Variable Portfolios are similar to a mutual
fund, but are only available through the purchase of an annuity. Most
significantly, you as the contract owner bear the entire investment risk with
respect to any Purchase Payments allocated to the Variable Portfolios of an
annuity. This means that the value of your contract will go up and down,
depending on the performance of the Variable Portfolios.
 
     Vista Variable Annuity is a variable annuity with five fixed account
options and six Variable Portfolios.
 
WHAT ARE THE INVESTMENT OPTIONS AVAILABLE UNDER THE CONTRACT?
 
     You may allocate money to the following Variable Portfolios of the Trust:
 
<TABLE>
        <S>                                             <C>
        - International Equity                          - Asset Allocation
        - Capital Growth                                - U.S. Government Income
        - Growth and Income                             - Money Market
</TABLE>
 
     You may also allocate money to the fixed account options for periods of 1,
3, 5, 7 and 10 years. We call these time periods guarantee periods. Anchor
National guarantees the interest rate credited to money in a fixed account
option. The interest rate offered for different guarantee periods may differ
 
                                        4
<PAGE>   7
 
from time to time, but we will never credit less than a 3% annual effective
rate. Additionally, if you allocate money to a fixed account option and withdraw
all or part of it prior to the end of the guarantee period, you may incur an
adjustment to the value of your contract called a market value adjustment (a
"MVA"). A MVA can decrease or increase the value of your contract.
 
     During the Accumulation Phase, you may transfer among the Variable
Portfolios and/or the fixed account options. Fifteen free transfers are
permitted per contract year. After that, we assess a transfer fee. A MVA may
also apply in the case of a transfer from a fixed account option.
 
HOW MAY I ACCESS MY MONEY?
 
     During the Accumulation Phase, earnings may be withdrawn at any time
without incurring a withdrawal charge. After the first contract year, your first
withdrawal each contract year will be free of a withdrawal charge if it does not
exceed the greater of: (1) earnings in your contract or (2) 10% of your Purchase
Payments still subject to a withdrawal charge which have been in your contract
for at least a year and not previously withdrawn. You will not get the benefit
of a free withdrawal amount upon a full surrender of your contract.
 
     Withdrawals in excess of these limits may be assessed a withdrawal charge.
Generally, withdrawals may be made from your contract in the amount of $1,000 or
more. You may request withdrawals in writing or by establishing systematic
withdrawals. Under systematic withdrawals, the minimum withdrawal amount is
$250.
 
     There are no withdrawal charges on that portion of your money invested for
seven years or more. Of course, upon a withdrawal you may have to pay income
tax. A 10% IRS penalty tax may also apply if you are under age 59 1/2.
Additionally, we do not assess withdrawal charges upon payment of a death
benefit or when you switch to the Income Phase.
 
CAN I EXAMINE THE CONTRACT?
 
     You may cancel your contract within ten days of your receipt of the
contract (or longer if required by state law) by mailing it to our Annuity
Service Center. Your contract will be treated as void on the date we receive it
and we will refund an amount equal to the contract value (unless otherwise
required by state law). Its value may be more or less than the money you
initially invested.
 
WHAT ARE THE CHARGES AND DEDUCTIONS UNDER A CONTRACT?
 
     Each year, we deduct a $30 contract maintenance fee from your contract. We
also deduct insurance charges which equal 1.40% annually of the average daily
value of your contract allocated to the Variable Portfolios. The insurance
charges include: mortality and expense risk, 1.25%, and distribution expense,
 .15%.
 
   
     As with other professionally managed investments, there are also investment
charges imposed on contracts with money allocated to the Variable Portfolios,
which are estimated to range from .55% to 1.10%.
    
 
     If you take money out in excess of the amount allowed for in your contract,
you may be assessed a withdrawal charge which is a percentage of the Purchase
Payments you withdraw. The percentage declines with each year the money is in
the contract as follows:
 
<TABLE>
<S>                    <C>      <C>      <C>      <C>      <C>      <C>      <C>      <C>
- ---------------------------------------------------------------------------------------------
 YEAR                     1        2        3        4        5        6        7       8+
- ---------------------------------------------------------------------------------------------
 WITHDRAWAL
 CHARGE                  6%       6%       5%       5%       4%       3%       2%       0%
- ---------------------------------------------------------------------------------------------
</TABLE>
 
     Each year, you are allowed to make 15 transfers without charge. After your
first 15 free transfers, a $25 transfer fee ($10 in Pennsylvania and Texas) will
apply to each subsequent transfer.
 
                                        5
<PAGE>   8
 
     In a limited number of states, you may also be assessed a state premium tax
of up to 3.5% depending upon the state.
 
WHAT IS THE DEATH BENEFIT UNDER THE CONTRACT?
 
     If you die during the Accumulation Phase of your contract, your Beneficiary
will receive a death benefit.
 
     If you were less than age 70 when your contract was issued, the death
benefit is the greater of:
 
     1. the value of your contract at the time we receive satisfactory proof of
        death; or
 
     2. total Purchase Payments less any withdrawals (and any fees or charges
        applicable to such withdrawals); or
 
     3. the maximum anniversary value on any contract anniversary preceding your
        death. The anniversary value equals the value of your contract on a
        contract anniversary plus any Purchase Payments and less any withdrawals
        (and any fees or charges applicable to such withdrawals) since that
        contract anniversary.
 
     If you were age 70 or older when your contract was issued, the death
benefit will equal the value of your contract at the time we receive
satisfactory proof of death.
 
WHAT ARE THE AVAILABLE INCOME OPTIONS UNDER THE CONTRACT?
 
     You can select from one of five income options:
 
       (1) payments for your lifetime;
 
       (2) payments for your lifetime and your survivor's lifetime;
 
       (3) payments for your lifetime and your survivor's lifetime, but for not
           less than 10 years;
 
       (4) payments for your lifetime, but for not less than 10 or 20 years; and
 
       (5) payments for a specified period of 3 to 30 years.
 
     You will also need to decide when your income payments begin and if you
want your income payments to fluctuate with investment performance or remain
constant. Once you begin receiving income payments, you cannot change your
income option.
 
     If your contract is part of a Non-qualified retirement plan (one that is
established with after-tax dollars), payments during the Income Phase are
considered partly a return of your original investment. The "original
investment" part of each payment is not taxable as income. For contracts which
are part of a Qualified retirement plan using before-tax dollars, the entire
payment is taxable as income.
 
                                        6
<PAGE>   9
 
- --------------------------------------------------------------------------------
 
                                   FEE TABLES
- --------------------------------------------------------------------------------
 
                           OWNER TRANSACTION EXPENSES
 
WITHDRAWAL CHARGE (AS A PERCENTAGE OF PURCHASE PAYMENTS):
 
   
<TABLE>
<CAPTION>
YEAR
<S>                                                           <C>
       One..................................................     6%
       Two..................................................     6%
       Three................................................     5%
       Four.................................................     5%
       Five.................................................     4%
       Six..................................................     3%
       Seven................................................     2%
       Eight and later......................................     0%
ANNUAL CONTRACT MAINTENANCE FEE.............................    $30
TRANSFER FEE................................................    $25*
(no transfer fee applies to the first 15 transfers in a
  contract year)
</TABLE>
    
 
- ---------------
* $10 in Texas and Pennsylvania.
- --------------------------------------------------------------------------------
 
                        ANNUAL SEPARATE ACCOUNT EXPENSES
                   (AS A PERCENTAGE OF DAILY NET ASSET VALUE)
 
<TABLE>
<S>                                                           <C>
MORTALITY RISK CHARGE.......................................  0.90%
EXPENSE RISK CHARGE.........................................  0.35%
DISTRIBUTION EXPENSE CHARGE.................................  0.15%
                                                              ----
       TOTAL EXPENSE CHARGE.................................  1.40%
                                                              ====
</TABLE>
 
- ---------------
 
                             ANNUAL TRUST EXPENSES
(AS A PERCENTAGE OF AVERAGE NET ASSETS AFTER REIMBURSEMENT OR WAIVER OF EXPENSES
                                FOR THE TRUST'S
                      FISCAL YEAR ENDED AUGUST 31, 1998):
           (FEE AND EXPENSE INFORMATION TO BE PROVIDED BY AMENDMENT)
 
   
<TABLE>
<CAPTION>
                                       ADVISORY FEE         ADMINISTRATION FEE                      TOTAL ANNUAL
                                   (AFTER WAIVER OF FEE)   (AFTER WAIVER OF FEE)   OTHER EXPENSES    EXPENSES*
                                   ---------------------   ---------------------   --------------   ------------
<S>                                <C>                     <C>                     <C>              <C>
International Equity.............          0.00%                   0.00%                1.10%           1.10%
Capital Growth...................          0.00%                   0.00%                 .90%            .90%
Growth and Income................          0.00%                   0.00%                 .90%            .90%
Asset Allocation.................          0.00%                   0.00%                 .85%            .85%
U.S. Government Income...........          0.00%                   0.00%                 .80%            .80%
Money Market.....................          0.00%                   0.00%                 .55%            .55%
</TABLE>
    
 
   
* Absent fee waivers or reimbursement of expenses by the adviser, you would have
  incurred the following expenses during the last fiscal year: International
  Equity 3.05%; Capital Growth 1.7%; Growth and Income 1.7%; Asset Allocation
  1.81%; U.S. Government Income 1.99%; and Money Market 2.24%.
    
 
THE ABOVE EXPENSES WERE PROVIDED BY THE TRUST. THE COMPANY HAS NOT VERIFIED THE
ACCURACY OF THE INFORMATION.
 
                                        7
<PAGE>   10
 
- --------------------------------------------------------------------------------
 
                                    EXAMPLES
- --------------------------------------------------------------------------------
 
   
You will pay the following expenses on a $1,000 investment in each Variable
Portfolio, assuming a 5% annual return on assets, and:
    
 
   
          (a) Surrender of the contract at the end of the stated time period;
    
 
   
          (b) If the contract is not surrendered or is annuitized.*
    
 
   
    
 
   
<TABLE>
<CAPTION>
                                                                    TIME PERIODS
                                                      ----------------------------------------
                  PORTFOLIO                           1 YEAR    3 YEARS    5 YEARS    10 YEARS
                  ---------                           ------    -------    -------    --------
<S>                                            <C>    <C>       <C>        <C>        <C>
International Equity.........................  (a)     $86       $130       $176        $289
                                               (b)     $26       $ 80       $136        $289
Capital Growth...............................  (a)     $84       $124       $166        $269
                                               (b)     $24       $ 74       $126        $269
Growth and Income............................  (a)     $84       $124       $166        $269
                                               (b)     $24       $ 74       $126        $269
Asset Allocation.............................  (a)     $83       $122       $163        $264
                                               (b)     $23       $ 72       $123        $264
U.S. Government Income.......................  (a)     $83       $121       $161        $259
                                               (b)     $23       $ 71       $121        $259
Money Market.................................  (a)     $80       $113       $148        $234
                                               (b)     $20       $ 63       $108        $234
</TABLE>
    
 
- ---------------
   
* We do not currently assess a surrender charge upon annuitization.
    
 
EXPLANATION OF FEE TABLES AND EXAMPLES
 
1. The purpose of the Fee Tables is to show you the various expenses you would
   incur directly and indirectly by investing in the contract.
 
2. For the Underlying Funds the adviser, The Chase Manhattan Bank, has
   voluntarily agreed to waive fees or reimburse certain expenses, to keep
   annual operating expenses at the levels indicated under "Annual Trust
   Expenses" on the prior page. The adviser also may voluntarily waive or
   reimburse additional amounts to increase an Underlying Fund's investment
   return. All waivers and/or reimbursements may be terminated at any time.
   Furthermore, the adviser may recoup any waivers or reimbursements within two
   years after such waivers or reimbursements are granted, provided that the
   Underlying Fund is able to make such payment and remain in compliance with
   the foregoing expense limitations.
 
   
3. The Examples assume that no transfer fees were imposed. Although premium
   taxes may apply in certain states, they are not reflected in the Examples.
    
 
   
4. THESE EXAMPLES SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR FUTURE
   EXPENSES. ACTUAL EXPENSES MAY BE GREATER OR LESS THAN THOSE SHOWN.
    
 
                                        8
<PAGE>   11
 
- --------------------------------------------------------------------------------
 
                        CONDENSED FINANCIAL INFORMATION
                            ACCUMULATION UNIT VALUES
- --------------------------------------------------------------------------------
 
   
<TABLE>
<CAPTION>
                                                       FISCAL YEAR     FISCAL YEAR    FISCAL YEAR
                     PORTFOLIOS                          8/31/96         8/31/97        8/31/98
                     ----------                        ------------    -----------    -----------
<S>                                                    <C>             <C>            <C>
International Equity
  Beginning AUV......................................    $  10.81       $  10.92       $  11.67
  Ending AUV.........................................    $  10.92       $  11.67       $  11.22
  Ending Number of AUs...............................      87,008        133,652        177,422
Capital Growth
  Beginning AUV......................................    $  11.82       $  13.95       $  17.51
  Ending AUV.........................................    $  13.95       $  17.51       $  14.43
  Ending Number of AUs...............................     232,242        289,931        346,507
Growth and Income
  Beginning AUV......................................    $  11.40       $  13.07       $  17.47
  Ending AUV.........................................    $  13.07       $  17.47       $  16.29
  Ending Number of AUs...............................     227,688        340,235        421,494
Asset Allocation
  Beginning AUV......................................       10.96       $  12.00       $  14.49
  Ending AUV.........................................    $  12.00       $  14.49       $  14.30
  Ending Number of AUs...............................      40,986         76,458         94,030
U.S. Government Income
  Beginning AUV......................................    $  10.67       $  10.79       $  11.50
  Ending AUV.........................................    $  10.79       $  11.50       $  12.61
  Ending Number of AUs...............................      22,094         37,216         75,003
Money Market
  Beginning AUV......................................    $  10.10       $  10.47       $  10.84
  Ending AUV.........................................    $  10.47       $  10.84       $  11.22
  Ending Number of AUs...............................      13,593        163,778         22,868
</TABLE>
    
 
- ---------------
 
AUV -- Accumulation Unit Value
 
AU -- Accumulation Units
 
- --------------------------------------------------------------------------------
 
                                PERFORMANCE DATA
- --------------------------------------------------------------------------------
 
     We advertise the Money Market Portfolio's "yield" and "effective yield."
Both figures are based on historical earnings and are not intended to indicate
future performance. The "yield" of the Money Market Portfolio refers to the net
income generated for a contract funded by an investment in the Money Market
Portfolio over a seven-day period. This income is then "annualized." That is,
the amount of income generated by the investment during that week is assumed to
be generated each week over a 52-week period and is shown as a percentage of the
investment. The "effective yield" is calculated similarly but, when annualized,
the income earned by an investment in the Money Market Portfolio is assumed to
be reinvested at the end of each seven-day period. The "effective yield" will be
slightly higher than the "yield" because of the compounding effect of this
assumed reinvestment. Neither the yield nor the effective yield takes into
consideration the effect of any capital changes that might have occurred during
the seven-day period, nor do they reflect the impact of premium taxes or any
withdrawal charges. The impact of other recurring charges on both yield figures
is, however, reflected in them to the same extent it would affect the yield (or
effective yield) for a contract of average size.
 
                                        9
<PAGE>   12
 
     In addition, the separate account may advertise "total return" data for its
other Variable Portfolios. Like the yield figures described above, total return
figures are based on historical data and are not intended to indicate future
performance. The "total return" is a computed rate of return that, when
compounded annually over a stated period of time and applied to a hypothetical
initial investment in a Variable Portfolio made at the beginning of the period,
will produce the same contract value at the end of the period that the
hypothetical investment would have produced over the same period (assuming a
complete redemption of the contract at the end of the period). Recurring
contract charges are reflected in the total return figures in the same manner as
they are reflected in the yield data for contracts funded through the Money
Market Portfolio. The effect of applicable withdrawal charges due to the assumed
redemption will be reflected in the return figures, but may be omitted in
additional return figures given for comparison.
 
     The separate account may also advertise an annualized 30-day (or one month)
yield figure for Variable Portfolios other than the Money Market Portfolio.
These yield figures are based upon the actual performance of the Variable
Portfolio over a 30-day (or one month) period ending on a date specified in the
advertisement. Like the total return data described above, the 30-day (or one
month) yield data will reflect the effect of all recurring contract charges (but
will not reflect any withdrawal charges or premium taxes). The yield figure is
derived from net investment gain (or loss) over the period expressed as a
fraction of the investment's value at the end of the period.
 
     More detailed information on the computation of advertised performance data
for the separate account is contained in the SAI.
 
- --------------------------------------------------------------------------------
 
              DESCRIPTION OF ANCHOR NATIONAL, THE SEPARATE ACCOUNT
                            AND THE GENERAL ACCOUNT
- --------------------------------------------------------------------------------
 
ANCHOR NATIONAL LIFE INSURANCE COMPANY
 
   
     Anchor National is a stock life insurance company organized under the laws
of the state of Arizona. Its principal place of business is 1 SunAmerica Center,
Los Angeles, California 90067-6022. We conduct life insurance and annuity
business in the District of Columbia and all states except New York.
    
 
   
     Anchor National and its affiliates, SunAmerica Life Insurance Company,
First SunAmerica Life Insurance Company, CalAmerica Life Insurance Company,
SunAmerica National Life Insurance Company, SunAmerica Asset Management Corp.,
Imperial Premium Finance, Inc., Resources Trust Company and six broker-dealers,
specialize in retirement savings and investment products and services. Business
focuses include fixed and variable annuities, mutual funds, premium finance,
broker-dealer services and trust administration services. As of September 30,
1998, Anchor National owned $14.5 billion in assets while SunAmerica Inc., the
Company's ultimate parent, together with its subsidiaries, held $55 billion of
assets, consisting of $39 billion of assets on its balance sheet, $3 billion of
assets managed in mutual funds and private accounts, and $13 billion under
custody in retirement trust accounts.
    
 
     Anchor National may advertise the rating and other information assigned to
it by independent industry ratings organizations. Some of those organizations
are A.M. Best Company ("A.M. Best"), Moody's Investor's Service ("Moody's"),
Standard & Poor's Insurance Rating Services ("S&P"), and Duff & Phelps. A.M.
Best's and Moody's ratings reflect their current opinion of Anchor National's
financial strength and performance in comparison to others in the life and
health insurance industry. S&P's and Duff & Phelps' ratings measure the ability
of an insurance company to meet its obligations under insurance policies it
issues. These two ratings do not measure the insurer's ability to meet non-
policy obligations. These ratings do not relate to the performance of the
Variable Portfolios.
 
                                       10
<PAGE>   13
 
SEPARATE ACCOUNT
 
     Anchor National originally established Variable Annuity Account Two (the
"separate account") on May 24, 1994. The separate account is registered with the
SEC as a unit investment trust under the Investment Company Act of 1940, as
amended. Anchor National owns the assets of the separate account. However, the
assets in the separate account are not chargeable with liabilities arising out
of any other business conducted by Anchor National. Income, gains, and losses
(realized and unrealized), resulting from assets in the separate account are
credited to or charged against the separate account without regard to other
income, gains, or losses of Anchor National.
 
GENERAL ACCOUNT
 
     Money allocated to the fixed account options goes into Anchor National's
general account. The general account consists of all of Anchor National's assets
other than assets attributable to a separate account. All of the assets in the
general account are chargeable with the claims of any Anchor National contract
holders as well as all of its creditors. The general account funds are invested
as permitted under state insurance laws.
 
- --------------------------------------------------------------------------------
 
                           VARIABLE PORTFOLIO OPTIONS
- --------------------------------------------------------------------------------
 
     The contract currently offers six variable investment Variable Portfolios.
These Variable Portfolios invest in shares of the Trust. These Variable
Portfolios operate similarly to a mutual fund but are only available through the
purchase of this annuity contract. The Underlying Funds are:
 
<TABLE>
        <S>                                             <C>
        - INTERNATIONAL EQUITY                          - ASSET ALLOCATION
        - CAPITAL GROWTH                                - U.S. GOVERNMENT INCOME
        - GROWTH AND INCOME                             - MONEY MARKET
</TABLE>
 
     The Chase Manhattan Bank ("Chase" or the "Adviser") acts as investment
adviser, administrator and custodian for the Trust. Chase Asset Management, Inc.
("CAM") is the investment subadviser to each of the Variable Portfolios except
the International Equity Portfolio. Chase Asset Management (London) Limited, an
English corporation ("CAM London") is the investment subadviser to the
International Equity Portfolio. As investment adviser to the Underlying Funds,
Chase makes investment decisions subject to policies set by the Board of
Trustees of the Trust. As administrator of the Underlying Funds, Chase provides
certain services including coordinating relationships with independent
contractors and agents; preparing and filing of certain documents; preparing
financial statements; arranging for the maintenance of books and records; and
providing office facilities. Certain of these services have been delegated to
Vista Fund Distributors, Inc. ("VFD") which serves as sub-administrator to the
Underlying Funds. As custodian for the Underlying Funds, Chase's
responsibilities include safeguarding and controlling the Underlying Funds' cash
and securities, handling the receipt and delivery of securities, determining
income and collecting interest on investments, maintaining books of original
entry and other required books and accounts, and calculating daily net asset
values.
 
   
     The Underlying Funds' investment objectives are as follows:
    
 
   
     INTERNATIONAL EQUITY PORTFOLIO seeks long-term capital appreciation and
income by investing primarily in a portfolio of marketable equity securities of
issuers located throughout the world.
    
 
   
     CAPITAL GROWTH PORTFOLIO seeks long-term capital appreciation. This
Variable Portfolio invests primarily in common stocks which are widely
diversified by industry and company.
    
 
   
GROWTH AND INCOME PORTFOLIO seeks growth of capital and income by investing
primarily in common stocks and other securities which demonstrate the potential
for appreciation and/or dividends.
    
 
                                       11
<PAGE>   14
 
   
     ASSET ALLOCATION PORTFOLIO seeks high total return (including income and
capital gains) by investing in a diversified portfolio of equity and debt
securities, including common stocks, convertible securities and government and
corporate fixed-income obligations. The Adviser considers both the opportunity
for gain and the risk of loss in making investments, and may alter the
percentages of assets invested in equity and fixed income securities, depending
on the judgment of the Adviser as to general market and economic conditions,
trends and yields and interest rates and changes in fiscal and monetary
policies.
    
 
   
     U.S. GOVERNMENT INCOME PORTFOLIO seeks relatively high current income,
liquidity and security of principal. This Variable Portfolio invests in
obligations issued, guaranteed or insured by the U.S. Government, its agencies
or instrumentalities. Neither the United States nor any of its agencies insures
or guarantees the market value of shares of this Variable Portfolio.
    
 
   
     MONEY MARKET PORTFOLIO seeks high current income while preserving capital
by investing in a diversified selection of money market investments.
    
 
   
     There is no assurance that the investment objective of any of the
Underlying Funds will be met. You bear the complete investment risk for Purchase
Payments allocated to a Variable Portfolio. Contract values will fluctuate in
accordance with the investment performance of the Variable Portfolio(s).
Additionally, contract fees and charges reduce investment return.
    
 
     YOU SHOULD READ THE PROSPECTUS FOR THE TRUST CAREFULLY. THE PROSPECTUS
CONTAINS DETAILED INFORMATION ABOUT THE UNDERLYING FUNDS, INCLUDING MORE
DETAILED INFORMATION ABOUT EACH UNDERLYING FUNDS' INVESTMENT OBJECTIVE AND RISK
FACTORS.
 
VOTING RIGHTS
 
     Anchor National is the legal owner of the Trust's shares. However, when an
Underlying Fund solicits proxies in conjunction with a vote of shareholders, we
must obtain your instructions on how to vote those shares. We vote all of the
shares we own in proportion to your instructions. Should we determine that we
are no longer required to comply with these rules, we will vote the shares in
our own right.
 
SUBSTITUTION OF SECURITIES
 
     If Underlying Funds become unavailable for investment, we may be required
to substitute shares of another Underlying Fund. We will seek prior approval of
the SEC and give you notice before substituting shares.
 
- --------------------------------------------------------------------------------
 
                             FIXED ACCOUNT OPTIONS
- --------------------------------------------------------------------------------
 
ALLOCATIONS
 
     The contract also offers fixed account options for periods of 1, 3, 5, 7 or
10 years. We call these time periods guarantee periods. All of these fixed
account options pay interest at rates set and guaranteed by Anchor National.
Interest rates may differ from time to time and are set at our sole discretion.
We will never credit less than a 3% annual effective rate to any of the fixed
account options. The interest rate offered for new Purchase Payments may differ
from interest rates offered for subsequent Purchase Payments and money already
in the fixed account options. In addition, different guarantee periods offer
different interest rates. Once established, the rates for specified payments do
not change during the specified period.
 
     When a guarantee period ends, you may leave your money in the same
guarantee period. You may also reallocate your money to another fixed account
option or to the Variable Portfolios. If you want to reallocate your money you
must contact us within 30 days after the end of the current guarantee
                                       12
<PAGE>   15
 
period and instruct us how to reallocate the money. If we do not hear from you,
we will keep your money in the same guarantee period where it will earn the
renewal interest rate applicable at that time.
 
MARKET VALUE ADJUSTMENT ("MVA")
 
     If you take money out of the fixed account options before the end of the
guarantee period, we make an adjustment to your contract (the "MVA"). The MVA
reflects any difference in the interest rate environment between the time you
place your money in the fixed account option and the time when you withdraw that
money. This adjustment can increase or decrease your contract value. You have 30
days after the end of each guarantee period to reallocate your funds without
incurring any MVA.
 
     We calculate the MVA by doing a comparison between current rates and the
rate being credited to you in the fixed account option. For the current rate we
use a rate being offered by us for a guarantee period that is equal to the time
remaining in the guarantee period from which you seek withdrawal. If we are not
currently offering a guarantee period for that period of time, we determine an
applicable rate by using a formula to arrive at a number between the interest
rates currently offered for the two closest periods available.
 
     Generally, if interest rates drop between the time you put your money into
the fixed account options and the time you take it out, we credit a positive
adjustment to your contract. Conversely, if interest rates increase during the
same period, we post a negative adjustment to your contract.
 
     Where the MVA is negative, we deduct the adjustment from any money
remaining in the fixed account option. If there is not enough money in the fixed
account option to meet the negative deduction, we deduct the remainder from your
withdrawal. Where the MVA is positive, we add the adjustment to your withdrawal
amount.
 
     APPENDIX A shows how to calculate the MVA.
 
- --------------------------------------------------------------------------------
 
                                CONTRACT CHARGES
- --------------------------------------------------------------------------------
 
   
     There are charges and expenses associated with your contract. These charges
and expenses reduce your investment return. We will not increase the contract
maintenance fee or the insurance and withdrawal charges under your contract.
However, the investment charges under your contract may increase or decrease.
Some states may require that we charge less than the amounts described below.
    
 
INSURANCE CHARGES
 
     The amount of this charge is 1.40% annually, of the value of your contract
invested in the Variable Portfolios. We deduct the charge daily.
 
     The insurance charge compensates us for the mortality and expense risks and
the costs of contract distribution we assume. If these charges do not cover all
expenses, we will pay the difference. Likewise, if these charges exceed our
expenses, we will keep the difference.
 
WITHDRAWAL CHARGES
 
   
     The contract provides a free withdrawal amount every year. (SEE CONTRACT
CHARGES, FREE WITHDRAWAL AMOUNT, PAGE 15.) Additionally, earnings in your
contract may be withdrawn free of withdrawal charges. If you take money out in
excess of the free withdrawal amount, you may incur a withdrawal charge.
    
 
     We apply a withdrawal charge against each Purchase Payment you put into the
contract. After a Purchase Payment has been in the contract for seven complete
years, no withdrawal charge applies.
 
                                       13
<PAGE>   16
 
The withdrawal charge equals a percentage of the Purchase Payment you take out
of the contract. The withdrawal charge percentage declines each year a Purchase
Payment is in the contract, as follows:
 
<TABLE>
<CAPTION>
 
- ------------------------------------------------------------------------------------------------------
         YEAR              1         2         3         4         5         6         7         8
- ------------------------------------------------------------------------------------------------------
<S>                    <C>       <C>       <C>       <C>       <C>       <C>       <C>       <C>
  WITHDRAWAL CHARGE       6%        6%        5%        5%        4%        3%        2%        0%
- ------------------------------------------------------------------------------------------------------
</TABLE>
 
     When calculating the withdrawal charge, we treat withdrawals as coming
first from the Purchase Payments that have been in your contract the longest.
However, for tax purposes, your withdrawals are considered earnings first, then
Purchase Payments.
 
     Whenever possible, we deduct the withdrawal charge from the money remaining
in your contract. If you withdraw all of your contract value, applicable
withdrawal charges are deducted from the amount withdrawn.
 
   
     We do not assess a withdrawal charge for money withdrawn to pay a death
benefit or to begin the Income Phase of your contract. Withdrawals made prior to
age 59 1/2 may result in a 10% IRS penalty tax. SEE TAXES, PAGE 26.
    
 
     APPENDIX B provides more information on withdrawals and the withdrawal
charge.
 
INVESTMENT CHARGES
 
   
     Charges are deducted from the Underlying Funds for the advisory and other
expenses of the Underlying Funds. THE FEE TABLES LOCATED AT PAGE 7 illustrate
these charges and expenses. For more detailed information on these investment
charges, refer to the attached prospectus for the Trust.
    
 
CONTRACT MAINTENANCE FEE
 
     During the Accumulation Phase, we subtract a contract maintenance fee from
your account once per contract year. This charge compensates us for the cost of
contract administration. We deduct the $30 contract maintenance fee from your
account value on your contract anniversary. If you withdraw your entire contract
value, the fee is deducted from that withdrawal.
 
TRANSFER FEE
 
   
     The contract currently provides for 15 free transfers between investment
options each contract year. After that, a charge of $25 applies to each
additional transfer in any one contract year ($10 in Pennsylvania and Texas).
SEE TRANSFERS DURING THE ACCUMULATION PHASE, PAGE 21.
    
 
PREMIUM TAX
 
     Certain states charge us a tax on the premiums you pay into the contract.
We deduct from your contract these premium tax charges. Currently, we deduct the
charge for premium taxes when you take a full withdrawal or begin the Income
Phase of the contract. In the future, we may assess this deduction at the time
you put Purchase Payment(s) into the contract or upon payment of a death
benefit.
 
APPENDIX C provides more information about premium taxes.
 
INCOME TAXES
 
     We do not currently deduct income taxes from your contract. We reserve the
right to do so in the future.
 
REDUCTION OR ELIMINATION OF CHARGES AND EXPENSES, AND ADDITIONAL AMOUNTS
CREDITED
 
     Sometimes sales of the contracts to groups of similarly situated
individuals may lower our administrative and/or sales expenses. We reserve the
right to reduce or waive certain charges and
 
                                       14
<PAGE>   17
 
expenses when this type of sale occurs. In addition, we may also credit
additional interest to policies sold to such groups. We determine which groups
are eligible for such treatment. Some of the criteria used to make a
determination are: size of the group; amount of expected Purchase Payments;
relationship existing between us and prospective purchaser; nature of the
purchase; length of time a group of contracts is expected to remain active;
purpose of the purchase and whether that purpose increases the likelihood that
our expenses will be reduced; and/or any other factors that we believe indicate
that administrative and/or sales expenses may be reduced.
 
     We may make such a determination regarding sales to our employees, our
affiliates' employees and employees of currently contracted broker-dealers, our
registered representatives and immediate family members of all of those
described.
 
     We reserve the right to change or modify any such determination or the
treatment applied to a particular group, at any time.
 
FREE WITHDRAWAL AMOUNT
 
     Your contract provides for a free withdrawal amount. Purchase Payments that
are no longer subject to a withdrawal charge and not previously withdrawn, plus
earnings, may be withdrawn without penalty.
 
     After the first full contract year, the contract provides for a free
withdrawal amount on your first withdrawal of the contract year. The free
withdrawal amount is the greater of (1) earnings in your contract and (2) 10% of
your total Purchase Payments invested for at least one year and not yet
withdrawn. Total Purchase Payments are equal to your total Purchase Payments
invested in the contract less any Purchase Payments withdrawn upon which a
surrender charge was paid and the amount of the surrender charge. Additionally,
once a Purchase Payment is no longer subject to withdrawal charges, it is no
longer included when determining total Purchase Payments.
 
     Upon a full surrender of your contract, to the extent you previously
withdraw Purchase Payments free of a withdrawal charge under the free withdrawal
provision, we will recoup the full withdrawal charge on such amounts, as if that
money was still invested in the contract on the date of surrender.
 
     We will waive the withdrawal charge upon payment of a death benefit. Where
legally permitted, the withdrawal charge may be eliminated when a contract is
issued to an officer, director or employee of the Company or its affiliates.
 
NURSING HOME WAIVER
 
     If your contract was issued with the appropriate rider and you are confined
to a nursing home for 60 days or longer, we may waive the withdrawal charge
and/or the MVA on certain withdrawals prior to the Annuity Date (not available
in Texas). The waiver applies only to withdrawals made while you are in a
nursing home or within 90 days after you leave the nursing home. Your rider
prohibits use of this waiver during the first 90 days after purchase. In
addition, the confinement period for which you seek the waiver must begin after
you purchase your contract.
 
     In order to use this waiver, you must submit with your withdrawal request,
the following documents: (1) a doctor's note recommending admittance to a
nursing home; (2) an admittance form which shows the type of facility you
entered; and (3) a bill from the nursing home which shows that you met the 60
day confinement requirement.
 
                                       15
<PAGE>   18
 
- --------------------------------------------------------------------------------
 
                          DESCRIPTION OF THE CONTRACTS
- --------------------------------------------------------------------------------
 
SUMMARY
 
     This contract works in two stages, the Accumulation Phase and the Income
Phase. Your contract is in the Accumulation Phase while you make payments into
the contract. The Income Phase begins when you request that we begin making
payments to you out of the money accumulated in your contract.
 
OWNERSHIP
 
     The Vista Variable Annuity is a Flexible Payment Group Deferred Annuity
Contract. Anchor National issues a group contract to a contract holder for the
benefit of the participants in the group. As a participant in the group, you
will receive a certificate which evidences your ownership. As used in this
prospectus, the term contract refers to your certificate. In some states, a
Flexible Payment Individual Modified Guaranteed and Variable Deferred Annuity
Contract is available instead. Such a contract is identical to the contract
described in this prospectus, with the exception that we issue it directly to
the owner.
 
ANNUITANT
 
     The annuitant is the person on whose life we base income payments. You may
change the Annuitant at any time before the Annuity Date. You may also designate
a second person on whose life, together with the annuitant, income payments
depend. If the annuitant dies before the Annuity Date, you must notify us and
select a new annuitant.
 
MODIFICATION OF THE CONTRACT
 
     Only the Company's President, a Vice President or Secretary may approve a
change or waive a provision of the contract. Any change or waiver must be in
writing. We reserve the right to modify the terms of the contract as necessary
to comply with changes in applicable law.
 
ASSIGNMENT
 
     Contracts issued pursuant to Non-qualified plans that are not subject to
Title 1 of the Employee Retirement Income Security Act of 1974 ("ERISA") may be
assigned by the owner at any time during the lifetime of the Annuitant prior to
the Annuity Date. We will not be bound by any assignment until written notice is
received by us at our Annuity Service Center. We are not responsible for the
validity, tax or other legal consequences of any assignment. An assignment will
not affect any payments we may make or actions we may take before we receive
notice of the assignment.
 
     If the contract is issued pursuant to a Qualified plan (or a Non-qualified
plan that is subject to Title 1 of ERISA), it may not be assigned, pledged or
otherwise transferred except under such conditions as may be allowed under
applicable law.
 
     BECAUSE AN ASSIGNMENT MAY BE A TAXABLE EVENT, YOU SHOULD CONSULT A
COMPETENT TAX ADVISER SHOULD YOU WISH TO ASSIGN YOUR CONTRACT.
 
DEATH BENEFIT
 
     If you die during the Accumulation Phase of your contract, we pay a death
benefit to your Beneficiary.
 
                                       16
<PAGE>   19
 
     If you were less than age 70 when your contract was issued, the death
benefit is equal to the greater of:
 
     1. the value of your contract at the time we receive satisfactory proof of
        death; or
 
     2. total Purchase Payments less any withdrawals (and any fees or charges
        applicable to such withdrawals); or
 
     3. the maximum anniversary value on any contract anniversary preceding your
        death. The anniversary value equals the value of your contract on a
        contract anniversary plus any Purchase Payments and less any withdrawals
        (and any fees or charges applicable to such withdrawals) since that
        contract anniversary.
 
     If you were age 70 or older when your contract was issued, the death
benefit will equal the value of your contract at the time we receive
satisfactory proof of death.
 
   
     We do not pay the death benefit if you die after you switch to the Income
Phase. However, if you die during the Income Phase, your Beneficiary receives
any remaining guaranteed income payments in accordance with the income option
you selected. (SEE INCOME PHASE, INCOME OPTIONS, PAGE 23.)
    
 
     You name your Beneficiary. You may change the Beneficiary at any time,
unless you previously made an irrevocable Beneficiary designation.
 
     We pay the death benefit when we receive satisfactory proof of death. We
consider the following satisfactory proof of death:
 
     1. a certified copy of the death certificate; or
 
     2. a certified copy of a decree of a court of competent jurisdiction as to
        the finding of death; or
 
     3. a written statement by a medical doctor who attended the deceased at the
        time of death; or
 
     4. any other proof satisfactory to us.
 
     We may require additional proof before we pay the death benefit.
 
     The death benefit payment must begin immediately upon receipt of all
necessary documents. In any event, the death benefit must be paid within 5 years
of the date of death unless the Beneficiary elects to have it payable in the
form of an income option. If the Beneficiary elects an income option, it must be
paid over the Beneficiary's lifetime or for a period not extending beyond the
Beneficiary's life expectancy. Payments must begin within one year of the date
of your death. If a Beneficiary does not elect a specific form of pay out within
60 days of our receipt of proof of death, we pay a lump sum death benefit to the
Beneficiary.
 
     If the Beneficiary is the spouse of a deceased owner, he or she can elect
to continue the contract at the then current value. If the Beneficiary/spouse
continues the contract, we do not pay a death benefit to him or her.
 
                                       17
<PAGE>   20
 
- --------------------------------------------------------------------------------
 
                   PURCHASES, WITHDRAWALS AND CONTRACT VALUE
- --------------------------------------------------------------------------------
 
PURCHASE PAYMENTS
 
     A Purchase Payment is the money you give us to buy a contract. Any
additional money you give us to invest in the contract after purchase is a
subsequent Purchase Payment.
 
   
     This chart shows the minimum initial and subsequent Purchase Payments
permitted under your contract. These amounts depend upon whether your contract
is Qualified or Non-qualified for tax purposes. SEE TAXES, PAGE 26.
    
 
<TABLE>
<S>                    <C>                    <C>
- --------------------------------------------------------------------
                                                     MINIMUM
                          MINIMUM INITIAL           SUBSEQUENT
                          PURCHASE PAYMENT       PURCHASE PAYMENT
- --------------------------------------------------------------------
      Qualified                $2,000                  $250
- --------------------------------------------------------------------
    Non-Qualified              $5,000                  $250
- --------------------------------------------------------------------
</TABLE>
 
     Prior Company approval is required to accept Purchase Payments greater than
$1,000,000. Also, the optional automatic payment plan allows you to make
subsequent Purchase Payments of as little as $100.00.
 
     We may refuse any Purchase Payment. In general, Anchor National will not
issue a Qualified contract to anyone who is age 70 1/2 or older, unless it is
shown that the minimum distribution required by the IRS is being made. In
addition, we may not issue a contract to anyone over age 85.
 
AUTOMATIC DOLLAR COST AVERAGING PROGRAM
 
     The Dollar Cost Averaging ("DCA") program allows you to invest gradually in
the Variable Portfolios. Under the program you systematically transfer a set
dollar amount or percentage of portfolio value from the Money Market Portfolio,
U.S. Government Income Portfolio or the 1-year fixed account option (source
accounts) to any other Variable Portfolio. Transfers may be monthly, quarterly,
semiannually or annually. You may change the frequency at any time by notifying
us in writing. The minimum transfer amount under the DCA program is $100,
regardless of the source account.
 
     The DCA program is designed to lessen the impact of market fluctuations on
your investment. However, we cannot ensure that you will make a profit. When you
elect the DCA program, you are continuously investing in securities regardless
of fluctuating price levels. You should consider your tolerance for investing
through periods of fluctuating price levels.
 
     We reserve the right to modify, suspend or terminate this program at any
time.
 
                                       18
<PAGE>   21
 
     EXAMPLE:
 
     Assume that you want to gradually move $750 each quarter from the Money
     Market Portfolio to the Growth and Income Portfolio over six quarters. You
     set up dollar cost averaging and purchase Accumulation Units at the
     following hypothetical values:
 
<TABLE>
<CAPTION>
- -----------------------------------------------------------
                       ACCUMULATION            UNITS
      QUARTER           UNIT VALUE           PURCHASED
- -----------------------------------------------------------
<S>                 <C>                 <C>
         1                $ 7.50                100
         2                $ 5.00                150
         3                $10.00                75
         4                $ 7.50                100
         5                $ 5.00                150
         6                $ 7.50                100
- -----------------------------------------------------------
</TABLE>
 
     In this example, you paid an average price of only $6.67 per Accumulation
     Unit over six quarters, while the average market price actually was $7.08.
     By investing an equal amount of money each month, you automatically buy
     more Accumulation Units when the market price is low and fewer Accumulation
     Units when the market price is high. This example is for illustrative
     purposes only.
 
ASSET ALLOCATION REBALANCING
 
     Earnings in your contract may cause the percentage of your investment in
each investment option to differ from your original allocations. The automatic
asset rebalancing program addresses this situation. At your election, we
periodically rebalance your investments to return your allocations to their
original percentages.
 
     Asset rebalancing may involve shifting a portion of your money out of an
investment option with a higher return into an investment option with a lower
return. You request quarterly, semiannual or annual rebalancing. Transfers made
as a result of rebalancing do not count against your 15 free transfers for the
contract year.
 
     We reserve the right to modify, suspend or terminate this program at any
time.
 
     EXAMPLE:
 
     Assume that you want your initial Purchase Payment split between two
     Variable Portfolios. You want 50% in the U.S. Government Income Portfolio
     and 50% in the Capital Growth Portfolio. Over the next calendar quarter,
     the U.S. Government Income Portfolio outperforms the Capital Growth
     Portfolio. At the end of the calendar quarter, the U.S. Government Income
     Portfolio now represents 60% of your holdings because it has increased in
     value and the Capital Growth Portfolio represents 40% of your holdings. If
     you had chosen quarterly rebalancing, on the last day of that quarter,
     Anchor National would sell some of your units in the U.S. Government Income
     Portfolio to bring its holdings back to 50% and use the money to buy more
     units in the Capital Growth Portfolio to increase those holdings to 50%.
 
PRINCIPAL ADVANTAGE PROGRAM
 
     The principal advantage program allows you to invest in one or more
Variable Portfolios without putting your principal at direct risk. The program
accomplishes this by allocating your investment strategically between the fixed
investment options and Variable Portfolios. You decide how much you want to
invest and approximately when you want a return of principal. Anchor National
calculates how much of your Purchase Payment needs to be allocated to the
particular fixed investment option to ensure that it grows to an amount equal to
your total principal invested under this program. The remaining principal is
invested in the Variable Portfolio(s) of your choice.
 
     Anchor National reserves the right to modify, suspend or terminate this
program at any time.
 
                                       19
<PAGE>   22
 
     EXAMPLE:
 
   
     Assume that you want to allocate a portion of your initial Purchase Payment
     of $100,000 to the fixed investment option. You want the amount allocated
     to the fixed investment option to grow to $100,000 in 7 years. If the
     7-year fixed investment option is offering a 5% interest rate, Anchor
     National allocates $71,068 to the 7-year fixed investment option to ensure
     that this amount will grow to $100,000 at the end of the 7-year period. The
     remaining $28,932 may be allocated among the Variable Portfolios, as
     determined by you, to provide opportunity for greater growth.
    
 
ALLOCATION OF PURCHASE PAYMENTS
 
   
     We invest your Purchase Payments in the fixed and variable investment
options according to your instructions. If we receive a Purchase Payment without
allocation instructions, we invest the money according to your last allocation
instructions. SEE VARIABLE PORTFOLIO OPTIONS, PAGE 11 AND FIXED ACCOUNT OPTIONS,
PAGE 12.
    
 
     In order to issue your contract, we must receive your completed
application, Purchase Payment allocation instructions and any other required
paperwork at our principal place of business. We allocate your initial purchase
payment within two days of receiving it. If we do not have complete information
necessary to issue your contract, we will contact you. If we do not have the
information necessary to issue your contract within 5 business days we will:
 
     - Send your money back to you, or;
 
     - Ask your permission to keep your money until we get the information
       necessary to issue the contract.
 
ACCUMULATION UNITS
 
     When you allocate a Purchase Payment to the Variable Portfolios, we credit
your contract with Accumulation Units of the separate account. We determine the
number of Accumulation Units credited by dividing the Purchase Payment by the
Accumulation Unit value for the specific Variable Portfolio. The value of an
Accumulation Unit will go up and down based on the performance of the Variable
Portfolios.
 
     We calculate the value of an Accumulation Unit each day that the New York
Stock Exchange ("NYSE") is open as follows:
 
     1. We determine the total value of money invested in a particular Variable
        Portfolio;
 
     2. We subtract from that amount all applicable contract charges; and
 
     3. We divide this amount by the number of outstanding Accumulation Units.
 
     We determine the number of Accumulation Units credited to your contract by
dividing the Purchase Payment by the Accumulation Unit value for the specific
Variable Portfolio.
 
     EXAMPLE:
 
     We receive a $25,000 Purchase Payment from you on Wednesday. You allocate
     the money to the Asset Allocation Portfolio. The value of an Accumulation
     Unit for the Asset Allocation Portfolio is $11.10 when the NYSE closes on
     Wednesday. Your Purchase Payment of $25,000 is then divided by $11.10 and
     we credit your contract on Wednesday night with 2252.52 Accumulation Units
     of the Asset Allocation Portfolio.
 
     Performance of the Variable Portfolios and the charges and expenses under
your contract affect Accumulation Unit values. These factors cause the value of
your contract to go up and down.
 
                                       20
<PAGE>   23
 
FREE LOOK
 
     You may cancel your contract within ten days after receiving it (or longer
if required by state law). Anchor National calls this a "free look." To cancel,
you must mail the contract along with your free look request to the Annuity
Service Center at P.O. Box 54299, Los Angeles, California 90054-0299. We will
refund the value of your contract on the day we receive your request. The amount
refunded to you may be more or less than the amount you originally invested.
 
     Certain states require us to return your Purchase Payments upon a free look
request. Additionally, all contracts issued as an IRA require the full return of
Purchase Payments upon a free look.
 
TRANSFER DURING THE ACCUMULATION PHASE
 
     During the Accumulation Phase you may transfer funds between the Variable
Portfolios and/or the fixed account options. You must transfer at least $100. If
less than $100 will remain in any Variable Portfolio after a transfer, that
amount must be transferred as well.
 
     You may request transfers of your account value between the Variable
Portfolios and/or the fixed account options in writing or by telephone. We
currently allow 15 free transfers per contract per year. A charge of $25 ($10 in
Pennsylvania and Texas) for each additional transfer in any contract year
applies after the first 15 transfers. Transfers resulting from your
participation in the DCA program count against your 15 free transfers per
contract year. However, transfers resulting from your participation in the
automatic asset rebalancing program do not count against your 15 free transfers.
 
     We accept transfer requests by telephone unless you specify not to on your
contract application. Additionally, in the future you may be able to execute
transfers or other financial transactions over the internet. When receiving
instructions over the telephone, we follow appropriate procedures to provide
reasonable assurance that the transactions executed are genuine. Thus, we are
not responsible for any claim, loss or expense from any error resulting from
instructions received over the telephone.
 
     Upon implementation of internet account transfers we will have appropriate
procedures in place to provide reasonable assurance that the transactions
executed are genuine. Thus, Anchor National would not be responsible for any
claim, loss or expense from any error resulting from instructions received over
the internet. If we fail to follow any procedures, we may be liable for any
losses due to unauthorized or fraudulent instructions.
 
     We may limit the number of transfers in any contract year or refuse any
transfer request for you or others invested in the contract if we believe that:
 
     - Excessive trading or a specific transfer request or group transfer
       requests may have a detrimental effect on unit values or the share prices
       of the Underlying Funds; or
 
     - The Underlying Funds inform us that they need to restrict the purchase or
       redemption of the shares because of excessive trading or because a
       specific transfer or group of transfers is deemed to have a detrimental
       effect on share prices of affected Underlying Funds.
 
     Where permitted by law, we may accept your authorization for a third party
to make transfers for you subject to certain rules. We reserve the right to
suspend or cancel such acceptance at any time and will notify you accordingly.
Additionally, we may restrict the investment options available for transfers
during any period in which such third party acts for you. We will notify such
third party beforehand regarding any restrictions. However, we will not enforce
these restrictions if we are satisfied that:
 
     - such third party has been appointed by a court of competent jurisdiction
       to act on your behalf; or
 
     - such third party is a trustee/fiduciary for you or appointed by you to
       act on your behalf for all your financial affairs.
 
     We may provide administrative or other support services to independent
third parties you authorize to make transfers on your behalf. We do not
currently charge extra for providing these
 
                                       21
<PAGE>   24
 
support services. This includes, but is not limited to, transfers between
investment options in accordance with market timing strategies. Such independent
third parties may or may not be appointed with us for the sale of annuities.
However, WE DO NOT ENGAGE ANY THIRD PARTIES TO OFFER INVESTMENT ALLOCATION
SERVICES OF ANY TYPE. WE TAKE NO RESPONSIBILITY FOR THE INVESTMENT ALLOCATION
AND TRANSFERS TRANSACTED ON YOUR BEHALF BY SUCH THIRD PARTIES OR FOR ANY
INVESTMENT ALLOCATION RECOMMENDATIONS MADE BY SUCH PARTIES.
 
   
     For information regarding transfers during the Income Phase, SEE INCOME
PHASE, TRANSFERS DURING THE INCOME PHASE, PAGE 25.
    
 
     We reserve the right to modify, suspend, waive or terminate these transfer
provisions at any time.
 
DISTRIBUTION OF CONTRACTS
 
     Registered representatives of broker-dealers sell the contract. Anchor
National pays commissions to these representatives for the sale of the
contracts. We do not expect the total commissions to exceed 6.5% of your
Purchase Payments. We may also pay a bonus to representatives for contracts
which stay active for a particular period of time, in addition to standard
commissions. We do not deduct commissions paid to registered representatives
directly from your Purchase Payments.
 
     From time to time, we may pay or allow additional promotional incentives in
the form of cash or other compensation. We reserve the right to offer these
additional incentives only to certain broker-dealers that sell or are expected
to sell, certain minimum amounts of the contract, or other contracts offered by
us. Promotional incentives may change at any time.
 
   
     Vista Fund Distributors, Inc. ("VFD"), located at 101 Park Avenue, New
York, New York, 10178, serves as distributor of the Contracts. VFD is registered
as a broker-dealer under the Securities Exchange Act of 1934, as amended, and is
a member of the National Association of Securities Dealers, Inc. VFD is not
affiliated with Anchor National or the Adviser to the Trust. No underwriting
fees are paid in connection with the distribution of these contracts.
    
 
WITHDRAWALS
 
     You can access money in your contract in two ways:
 
     - by making a partial or total withdrawal, and/or;
 
   
     - by receiving income payments during the Income Phase. (SEE INCOME PHASE,
       PAGE 23.)
    
 
   
     Generally, we deduct a withdrawal charge applicable to any total or partial
withdrawal and a MVA against withdrawals from the 3, 5, 7 or 10 year fixed
account options. If you withdraw your entire contract value, a deduction for
premium taxes and the contract maintenance fee also occurs. (SEE CONTRACT
CHARGES, WITHDRAWAL CHARGE, PAGE 13.)
    
 
   
     Under certain Qualified plans, access to the money in your contract may be
restricted. Additionally, withdrawals made prior to age 59 1/2 may result in a
10% IRS penalty tax. (SEE TAXES, PAGE 26.)
    
 
     Under most circumstances, the partial withdrawal minimum is $1,000. We
require that the value left in any investment option be at least $100 after the
withdrawal. You must send a written withdrawal request. Unless you provide
different instructions, partial withdrawals will be made pro rata from each
Variable Portfolio and the fixed account option in which your contract is
invested.
 
     We may be required to suspend or postpone the payment of a withdrawal for
any period of time when: (1) the NYSE is closed (other than customary weekend
and holiday closings); (2) trading with the NYSE is restricted; (3) an emergency
exists such that disposal of or determination of the value of shares of the
Variable Portfolios is not reasonably practicable; (4) the SEC, by order, so
permits for the protection of contract owners.
 
                                       22
<PAGE>   25
 
     Additionally, we reserve the right to defer payments for a withdrawal from
a fixed account option. Such deferrals are limited to no longer than six months.
 
SYSTEMATIC WITHDRAWAL PROGRAM
 
   
     During the Accumulation Phase, you may elect to receive periodic income
payments under the systematic withdrawal program. Under the program, you may
choose to take monthly, quarterly, semiannual or annual payments from your
contract. Electronic transfer of these funds to your bank account is available.
The minimum amount of each withdrawal is $250. There must be at least $100
remaining in each Variable Portfolio after a withdrawal from your contract at
all times. Withdrawals may be subject to a withdrawal charge, a MVA and
taxation, and a 10% IRS penalty tax may apply if you are under age 59 1/2. There
is no additional charge for participating in this program.
    
 
     The program is not available to everyone. Please check with our Annuity
Service Center, which can provide the necessary enrollment forms. Anchor
National reserves the right to modify, suspend or terminate this program at any
time.
 
MINIMUM CONTRACT VALUE
 
     Where permitted by state law, we may terminate your contract if both of the
following occur: (1) your contract is less than $500 as a result of withdrawals;
and (2) you have not made any Purchase Payments during the past three years. We
will provide you with sixty days written notice. At the end of the notice
period, we will distribute the contract value to you.
 
- --------------------------------------------------------------------------------
 
                                  INCOME PHASE
- --------------------------------------------------------------------------------
 
ANNUITY DATE
 
     During the Income Phase, we use the money accumulated in your contract to
make regular income payments to you. You may switch to the Income Phase any time
after your 2nd contract anniversary. You select the month and year in which you
want income payments to begin. The first day of that month is the Annuity Date.
You may change your Annuity Date, so long as you do so at least seven days
before the income payments are scheduled to begin. Once you begin receiving
income payments, you cannot change your income option.
 
     Income payments must begin on or before your 90th birthday or on your tenth
contract anniversary, whichever occurs later. If you do not choose an Annuity
Date, your income payments will automatically begin on this date. Certain states
may require your income payments to start earlier.
 
     If the Annuity Date is past your 85th birthday, your contract could lose
its status as an annuity under Federal tax laws. This may cause you to incur
adverse tax consequences.
 
   
     In addition, most Qualified contracts require you to take minimum
distributions after you reach age 70 1/2. (SEE TAXES, PAGE 26.)
    
 
INCOME OPTIONS
 
     Currently, this contract offers five income options. If you elect to
receive income payments but do not select an option, your income payments will
be made in accordance with option 4 for a period of 10 years. For income
payments based on joint lives, we pay according to option 3.
 
     We base our calculation of income payments on the life of the Annuitant and
the annuity rates set forth in your contract. As the contract owner, you may
change the Annuitant at any time prior to the Annuity Date. You must notify us
if the Annuitant dies before the Annuity Date and designate a new Annuitant.
 
                                       23
<PAGE>   26
 
     OPTION 1 -- LIFE INCOME ANNUITY
 
     This option provides income payments for the life of the Annuitant. Income
payments stop when the Annuitant dies.
 
     OPTION 2 -- JOINT AND SURVIVOR LIFE ANNUITY
 
     This option provides income payments for the life of the Annuitant and for
the life of another designated person. Upon the death of either person, we will
continue to make income payments during the lifetime of the survivor. Income
payments stop whenever the survivor dies.
 
     OPTION 3 -- JOINT AND SURVIVOR LIFE ANNUITY WITH 10 YEARS GUARANTEED
 
     This option is similar to option 2 above, with an additional guarantee of
payments for at least 10 years. If the Annuitant and the survivor die before all
of the guaranteed income payments have been made, the remaining payments are
made to the Beneficiary under your contract.
 
     OPTION 4 -- LIFE ANNUITY WITH 10 OR 20 YEARS GUARANTEED
 
     This option is similar to option 1 above. In addition, this option provides
a guarantee that income payments will be made for at least 10 or 20 years. You
select the number of years. If the Annuitant dies before all guaranteed income
payments are made, the remaining income payments go to the Beneficiary under
your contract.
 
     OPTION 5 -- INCOME FOR A SPECIFIED PERIOD
 
     This option provides income payments for a guaranteed period ranging from 3
to 30 years. If the Annuitant dies before all of the guaranteed income payments
are made, the remaining income payments will be made to the Beneficiary under
your contract.
 
     Please read the SAI for a more detailed discussion of the income options.
 
     You can choose income payments that are fixed, variable or both. If at the
date when income payments begin you are invested in the Variable Portfolios
only, your income payments will be variable. If your money is only in fixed
accounts at that time, your income payments will be fixed in amount. Further, if
you are invested in both the fixed and variable investment options when payments
begin your payments will be fixed and variable. If income payments are fixed,
Anchor National guarantees the amount of each payment. If the income payments
are variable, the amount is not guaranteed.
 
     We make income payments on a monthly, quarterly, semiannual or annual
basis. You instruct us to send you a check or to have the payments directly
deposited into your bank account. If state law allows, we distribute annuities
with a contract value of $5,000 or less in a lump sum. Also, if the selected
income option results in income payments of less than $50 per payment, the
frequency of your payments may be decreased, state law allowing.
 
     If you are invested in the Variable Portfolios after the Annuity Date your
income payments vary depending on four things:
 
     - for life options, your age when payments begin, and;
 
     - the value of your contract in the Variable Portfolios on the Annuity
       Date, and;
 
     - the 3.5% assumed investment rate used in the annuity table for the
       contract, and;
 
     - the performance of the Variable Portfolios in which you are invested
       during the time you receive income payments.
 
     If you are invested in both the fixed account options and the Variable
Portfolios after the Annuity Date, the allocation of funds between the fixed and
variable options also impacts the amount of your income payments.
 
                                       24
<PAGE>   27
 
TRANSFERS DURING THE INCOME PHASE
 
     During the Income Phase, one transfer per month is permitted between the
Variable Portfolios. No other transfers are allowed during the Income Phase.
 
DEFERMENT OF PAYMENTS
 
     We may defer making fixed income payments for up to six months, or less if
required by law. Interest is credited to you during the deferral period.
 
- --------------------------------------------------------------------------------
 
                                 ADMINISTRATION
- --------------------------------------------------------------------------------
 
     We are responsible for the administrative servicing of your contract.
Please contact our Annuity Service Center at 1-800-90-VISTA, if you have any
comment, question or service request.
 
     We send out transaction confirmations and quarterly statements. It is your
responsibility to review these documents carefully and notify us of any
inaccuracies immediately. We investigate all inquiries. To the extent that we
believe we made an error, we retroactively adjust your contract, provided you
notify us within 30 days of receiving the transaction confirmation or quarterly
statement. Any other adjustments we deem warranted are made as of the time we
receive notice of the error.
 
     We rely significantly on computer systems and applications in our daily
operations. Many of our systems are not presently year 2000 compliant, which
means that because they have historically used only two digits to identify the
year in a date, they will fail to distinguish dates in the "2000s" from dates in
the "1900s." Anchor National's business, financial condition and results of
operations could be materially and adversely affected by the failure of our
systems and applications (and those operated by third parties interfacing with
our systems and applications) to properly operate or manage these dates.
 
   
     Anchor National has a coordinated plan to repair or replace these
noncompliant systems and to obtain similar assurances from third parties
interfacing with our systems and applications. In fiscal 1997, the Company
recorded a $6.2 million provision for estimated programming costs to repair
noncompliant systems. Anchor National's management is making expenditures which
we expect will ultimately total $5.0 million to replace certain other
noncompliant systems. Total expenditures relating to the repair of noncompliant
systems will be capitalized by the Company as software costs and will be paid
over future periods. Both phases of the project are progressing according to
plan and we expect to substantially complete them by the end of calendar 1998.
We will test both the repaired and replacement systems during calendar 1999.
    
 
     In addition, we distributed a year 2000 questionnaire to our significant
suppliers, distributors, financial institutions, lessors and others we do
business with to evaluate their year 2000 compliance plans and state of
readiness and to determine how our systems and applications may be affected by
their failure to solve their own year 2000 issues. To date, however, we have
only received preliminary feedback from such parties and have not independently
confirmed any information received from other parties with respect to the year
2000 issues. Therefore, we cannot assure that such other parties will complete
their year 2000 conversions in a timely fashion or will not suffer a year 2000
business disruption that may adversely affect our financial condition and
results of operations.
 
                                       25
<PAGE>   28
 
   
- --------------------------------------------------------------------------------
    
 
                                     TAXES
- --------------------------------------------------------------------------------
 
     NOTE: WE PREPARED THE FOLLOWING INFORMATION ON TAXES AS A GENERAL
DISCUSSION OF THE SUBJECT. IT IS NOT TAX ADVICE. WE CAUTION YOU TO SEEK
COMPETENT TAX ADVICE ABOUT YOUR OWN CIRCUMSTANCES. WE DO NOT GUARANTEE THE TAX
STATUS OF YOUR ANNUITY. TAX LAWS CONSTANTLY CHANGE, THEREFORE WE CANNOT
GUARANTEE THAT THE INFORMATION CONTAINED HEREIN IS COMPLETE AND/OR ACCURATE.
 
ANNUITY CONTRACTS IN GENERAL
 
   
     The Internal Revenue Code ("IRC") provides for special rules regarding the
tax treatment of annuity contracts. Generally, taxes on the earnings in your
annuity contract are deferred until you take the money out. Qualified retirement
investments automatically provide tax deferral regardless of whether the
underlying contract is an annuity. Different rules apply depending on how you
take the money out and whether your contract is Qualified or Non-qualified.
    
 
     If you do not purchase your contract under a pension plan, a specially
sponsored employer program or an IRA, your contract is referred to as a
Non-qualified contract. A Non-qualified contract receives different tax
treatment than a Qualified contract. In general, your cost basis in a Non-
qualified contract is equal to the Purchase Payments you put into the contract.
You have already been taxed on the cost basis in your contract.
 
     If you purchase your contract under a pension plan, a specially sponsored
employer program or as an individual retirement account, your contract is
referred to as a Qualified contract. Examples of qualified plans are: IRAs, Roth
IRAs, Tax-Sheltered Annuities (referred to as 403(b) contracts), H.R. 10 Plans
(referred to as Keogh Plans) and pension and profit sharing plans, including
401(k) plans. Typically you have not paid any tax on the Purchase Payments used
to buy your contract and therefore, you have no cost basis in your contract.
 
TAX TREATMENT OF DISTRIBUTIONS -- NON-QUALIFIED CONTRACTS
 
     If you make a withdrawal from a Non-qualified contract, the IRC treats such
a withdrawal as first coming from the earnings and then as coming from your
Purchase Payments. For income payments, any portion of each payment that is
considered a return of your Purchase Payment will not be taxed. Withdrawn
earnings are treated as income to you and are taxable. The IRC provides for a
10% penalty tax on any earnings that are withdrawn other than in conjunction
with the following circumstances: (1) after reaching age 59 1/2; (2) when paid
to your Beneficiary after you die; (3) after you become disabled (as defined in
the IRC); (4) when paid in a series of substantially equal installments made for
your life or for the joint lives of you and you Beneficiary; (5) under an
immediate annuity; or (6) which come from Purchase Payments made prior to August
14, 1982.
 
TAX TREATMENT OF DISTRIBUTIONS -- QUALIFIED CONTRACTS
 
     Generally, you have not paid any taxes on the Purchase Payments used to buy
a Qualified contract. Any amount of money you take out as a withdrawal or as
income payments is taxable income. The IRC further provides for a 10% penalty
tax on any withdrawal or income payment paid to you other than in conjunction
with the following circumstances: (1) after reaching age 59 1/2; (2) when paid
to your Beneficiary after you die; (3) after you become disabled (as defined in
the IRC); (4) when paid in a series of substantially equal installments made for
your life or for the joint lives of you and your Beneficiary; (5) to the extent
such withdrawals do not exceed limitations set by the IRC for amounts paid
during the taxable year for medical care; (6) to fund higher education expenses
(as defined in IRC); (7) to fund certain first-time home purchase expenses; and,
except in the case of an IRA; (8) when you separate from service after attaining
age 55; and (9) when paid to an alternate payee pursuant to a qualified domestic
relations order.
 
                                       26
<PAGE>   29
 
     The IRC limits the withdrawal of Purchase Payments from certain
Tax-Sheltered Annuities. Withdrawals can only be made when an owner: (1) reaches
age 59 1/2; (2) leaves his or her job; (3) dies; (4) becomes disabled (as
defined in the IRC); or (5) experiences hardship (as defined in the IRC). In the
case of hardship, the owner can only withdraw Purchase Payments.
 
MINIMUM DISTRIBUTIONS
 
     If you have a Qualified contract, distributions must begin by April 1 of
the calendar year following the later of (1) the calendar year in which you
attain age 70 1/2 or (2) the calendar year in which you retire.
 
DIVERSIFICATION
 
     The IRC imposes certain diversification requirements on the underlying
investments for a variable annuity. We believe that each underlying Variable
Portfolios' management monitors the Variable Portfolios so as to comply with
these requirements. To be treated as a variable annuity for tax purposes, the
underlying investments must meet these requirements.
 
     The diversification regulations do not provide guidance as to the
circumstances under which you, because of the degree of control you exercise
over the underlying investments, and not Anchor National, would be considered
the owner of the shares of the Variable Portfolios. It is unknown to what extent
owners are permitted to select investments, to make transfers among Variable
Portfolios or the number and type of Variable Portfolios owners may select from.
If any guidance is provided which is considered a new position, then the
guidance would generally be applied prospectively. However, if such guidance is
considered not to be a new position, it may be applied retroactively. This would
mean you, as the owner of the contract, could be treated as the owner of the
underlying Variable Portfolios. Due to the uncertainty in this area, we reserve
the right to modify the contract in an attempt to maintain favorable tax
treatment.
 
                                       27
<PAGE>   30
 
- --------------------------------------------------------------------------------
 
                    ADDITIONAL INFORMATION ABOUT THE COMPANY
- --------------------------------------------------------------------------------
 
SELECTED CONSOLIDATED FINANCIAL DATA
 
   
     The following selected consolidated financial data of the Company and its
subsidiaries should be read in conjunction with the consolidated financial
statements and notes thereto and Management's Discussion and Analysis of
Financial Condition and Results of Operations, both of which are included
elsewhere herein.
    
 
   
<TABLE>
<CAPTION>
                                                         YEARS ENDED SEPTEMBER 30,
                                      ----------------------------------------------------------------
                                         1998          1997          1996         1995         1994
                                      -----------   -----------   ----------   ----------   ----------
                                                               (IN THOUSANDS)
<S>                                   <C>           <C>           <C>          <C>          <C>
RESULTS OF OPERATIONS
Net investment income...............  $    86,872   $    73,201   $   56,843   $   50,083   $   58,996
Net realized investment gains
  (losses)..........................       19,482       (17,394)     (13,355)      (4,363)     (33,713)
Fee income..........................      290,362       213,146      169,505      145,105      141,753
General and administrative
  expenses..........................      (96,102)      (98,802)     (81,552)     (64,457)     (54,363)
Amortization of deferred acquisition
  costs.............................      (72,713)      (66,879)     (57,520)     (58,713)     (44,195)
Annual commissions..................      (18,209)       (8,977)      (4,613)      (2,658)      (1,158)
                                      -----------   -----------   ----------   ----------   ----------
Pretax income.......................      209,692        94,295       69,308       64,997       67,320
Income tax expense..................      (71,051)      (31,169)     (24,252)     (25,739)     (22,705)
                                      -----------   -----------   ----------   ----------   ----------
INCOME BEFORE CUMULATIVE EFFECT OF
  CHANGE IN ACCOUNTING FOR INCOME
  TAXES.............................      138,641        63,126       45,056       39,258       44,615
Cumulative effect of change in
  accounting for income taxes.......           --            --           --           --      (20,463)
                                      -----------   -----------   ----------   ----------   ----------
NET INCOME..........................  $   138,641   $    63,126   $   45,056   $   39,258   $   24,152
                                      ===========   ===========   ==========   ==========   ==========
</TABLE>
    
 
   
<TABLE>
<CAPTION>
                                                              AT SEPTEMBER 30,
                                      ----------------------------------------------------------------
                                         1998          1997          1996         1995         1994
                                      -----------   -----------   ----------   ----------   ----------
                                                               (IN THOUSANDS)
<S>                                   <C>           <C>           <C>          <C>          <C>
FINANCIAL POSITION
Investments.........................  $ 2,734,742   $ 2,608,301   $2,329,232   $2,114,908   $1,632,072
Variable annuity assets held in
  separate accounts.................   11,133,569     9,343,200    6,311,557    5,230,246    4,486,703
Deferred acquisition costs..........      539,850       536,155      443,610      383,069      416,289
Other assets........................      118,203        83,283      120,136       55,474       67,062
                                      -----------   -----------   ----------   ----------   ----------
TOTAL ASSETS........................  $14,526,364   $12,570,939   $9,204,535   $7,783,697   $6,602,126
                                      ===========   ===========   ==========   ==========   ==========
Reserves for fixed annuity
  contracts.........................  $ 2,189,272   $ 2,098,803   $1,789,962   $1,497,052   $1,437,488
Reserves for guaranteed investment
  contracts.........................      282,267       295,175      415,544      277,095           --
Variable annuity liabilities related
  to separate accounts..............   11,133,569     9,343,200    6,311,557    5,230,246    4,486,703
Other payables and accrued
  liabilities.......................      133,647       155,256       96,196      227,953      195,134
Subordinated notes payable to
  Parent............................       39,182        36,240       35,832       35,832       34,712
Deferred income taxes...............       95,758        67,047       70,189       73,459       64,567
Shareholder's equity................      652,669       575,218      485,255      442,060      383,522
                                      -----------   -----------   ----------   ----------   ----------
TOTAL LIABILITIES AND SHAREHOLDER'S
  EQUITY............................  $14,526,364   $12,570,939   $9,204,535   $7,783,697   $6,602,126
                                      ===========   ===========   ==========   ==========   ==========
</TABLE>
    
 
                                       28
<PAGE>   31
 
- --------------------------------------------------------------------------------
 
   
               MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
    
   
                      CONDITION AND RESULTS OF OPERATIONS
    
- --------------------------------------------------------------------------------
 
   
     Management's discussion and analysis of financial condition and results of
operations of Anchor National Life Insurance Company (the "Company") for the
three years in the period ended September 30, 1998 follows. In connection with
the "safe harbor" provisions of the Private Securities Litigation Reform Act of
1995, the Company cautions readers regarding certain forward-looking statements
contained in this report and in any other statements made by, or on behalf of,
the Company, whether or not in future filings with the Securities and Exchange
Commission (the "SEC"). Forward-looking statements are statements not based on
historical information and which relate to future operations, strategies,
financial results, or other developments. Statements using verbs such as
"expect," "anticipate," "believe" or words of similar import generally involve
forward-looking statements. Without limiting the foregoing, forward-looking
statements include statements which represent the Company's beliefs concerning
future levels of sales and redemptions of the Company's products, investment
spreads and yields, or the earnings and profitability of the Company's
activities.
    
 
   
     Forward-looking statements are necessarily based on estimates and
assumptions that are inherently subject to significant business, economic and
competitive uncertainties and contingencies, many of which are beyond the
Company's control and many of which are subject to change. These uncertainties
and contingencies could cause actual results to differ materially from those
expressed in any forward-looking statements made by, or on behalf of, the
Company. Whether or not actual results differ materially from forward-looking
statements may depend on numerous foreseeable and unforeseeable developments.
Some may be national in scope, such as general economic conditions, changes in
tax law and changes in interest rates. Some may be related to the insurance
industry generally, such as pricing competition, regulatory developments and
industry consolidation. Others may relate to the Company specifically, such as
credit, volatility and other risks associated with the Company's investment
portfolio. Investors are also directed to consider other risks and uncertainties
discussed in documents filed by the Company with the SEC. The Company disclaims
any obligation to update forward-looking information.
    
 
   
RESULTS OF OPERATIONS
    
 
   
     NET INCOME totaled $138.6 million in 1998, compared with $63.1 million in
1997 and $45.1 million in 1996.
    
 
   
     PRETAX INCOME totaled $209.7 million in 1998, $94.3 million in 1997 and
$69.3 million in 1996. The 122.4% improvement in 1998 over 1997 primarily
resulted from increased fee income and higher net realized investment gains,
partially offset by increased annual commissions and increased amortization of
deferred acquisition costs. The 36.1% improvement in 1997 over 1996 primarily
resulted from increased fee income and net investment income, partially offset
by higher general and administrative expenses and increased amortization of
deferred acquisition costs.
    
 
   
     NET INVESTMENT INCOME, which is the spread between the income earned on
invested assets and the interest paid on fixed annuities and other
interest-bearing liabilities, increased to $86.9 million in 1998 from $73.2
million in 1997 and $56.8 million in 1996. These amounts represent 3.34% on
average invested assets (computed on a daily basis) of $2.60 billion in 1998,
2.77% on average invested assets of $2.65 billion in 1997 and 2.59% on average
invested assets of $2.19 billion in 1996.
    
 
   
     Net investment spreads include the effect of income earned on the excess of
average invested assets over average interest-bearing liabilities. This excess
amounted to $140.4 million in 1998, $126.5 million in 1997 and $142.9 million in
1996. The difference between the Company's yield on average invested assets and
the rate paid on average interest-bearing liabilities (the "Spread Difference")
was 3.04% in 1998, 2.51% in 1997 and 2.25% in 1996.
    
 
                                       29
<PAGE>   32
 
   
     Investment income (and the related yields on average invested assets)
totaled $222.0 million (8.53%) in 1998, compared with $210.8 million (7.97%) in
1997 and $164.6 million (7.50%) in 1996. These increased yields in 1998 and 1997
include the effects of an increasing proportion of mortgage loans in the
Company's portfolio. On average, mortgage loans have higher yields than that of
the Company's overall portfolio. In addition, the Company experienced higher
returns on its investments in partnerships, particularly in 1998. The increase
in investment income in 1997 also reflects an increase in average invested
assets.
    
 
   
     Partnership income increased to $24.3 million (a yield of 174.85% on
related average assets of $13.9 million) in 1998, compared with $6.7 million (a
yield of 15.28% on related average assets of $44.0 million) in 1997 and $4.1
million (a yield of 10.12% on related average assets of $40.2 million) in 1996.
Partnership income is based primarily upon cash distributions received from
limited partnerships, the operations of which the Company does not influence.
Consequently, such income is not predictable and there can be no assurance that
the Company will realize comparable levels of such income in the future.
    
 
   
     Total interest expense equalled $135.1 million in 1998, $137.6 million in
1997 and $107.8 million in 1996. The average rate paid on all interest-bearing
liabilities was 5.49% in 1998, compared with 5.46% in 1997 and 5.25% in 1996.
Interest-bearing liabilities averaged $2.46 billion during 1998, compared with
$2.52 billion during 1997 and $2.05 billion during 1996. The increases in the
overall rates paid on interest-bearing liabilities primarily resulted from the
impact of certain promotional one-year interest rates offered on the fixed
account portion of the Company's Polaris and Seasons variable annuity products.
    
 
   
     The modest decline in average invested assets in 1998 reflects a similar
modest decline in average interest-bearing liabilities, which results from the
net effect of increased sales of the Company's fixed rate products and net
exchanges from fixed accounts into the separate accounts of variable annuity
contracts. Fixed annuity premiums totaled $1.51 billion in 1998, compared with
$1.10 billion in 1997 and $741.8 million in 1996 and are largely premiums for
the fixed accounts of variable annuities. These amounts represent 72%, 61% and
50% of the fixed annuity reserve balances at the beginning of the respective
periods. The premiums for the fixed accounts of variable annuities have
increased primarily because of increased sales of the Company's variable annuity
products and greater inflows into the one-year fixed account and the new
six-month fixed account of these products, which are used for dollar cost
averaging into the variable accounts. Accordingly, the Company anticipates that
it will see a large portion of these premiums transferred into the variable
funds.
    
 
   
     Guaranteed investment contract ("GIC") premiums totaled $5.6 million in
1998, $55.0 million in 1997 and $135.0 million in 1996. GIC surrenders and
maturities totaled $36.3 million in 1998, $198.1 million in 1997 and $16.5
million in 1996. The Company does not actively market GICs; consequently,
premiums and surrenders may vary substantially from period to period. The GICs
issued by the Company generally guarantee the payment of principal and interest
at fixed or variable rates for a term of three to five years. GICs that are
purchased by banks for their long-term portfolios or by state and local
governmental entities either prohibit withdrawals or permit scheduled book value
withdrawals subject to the terms of the underlying indenture or agreement. GICs
purchased by asset management firms for their short-term portfolios either
prohibit withdrawals or permit withdrawals with notice ranging from 90 to 270
days. In pricing GICs, the Company analyzes cash flow information and prices
accordingly so that it is compensated for possible withdrawals prior to
maturity.
    
 
   
     NET REALIZED INVESTMENT GAINS totaled $19.5 million in 1998, compared with
net realized investment losses of $17.4 million in 1997 and $13.4 million in
1996. Net realized investment gains (losses) include impairment writedowns of
$13.1 million in 1998, $20.4 million in 1997 and $16.0 million in 1996. Thus,
net gains from sales and redemptions of investments totaled $32.6 million in
1998, $3.0 million in 1997 and $2.6 million in 1996.
    
 
   
     The Company sold or redeemed invested assets, principally bonds and notes,
aggregating $2.23 billion in 1998, $2.62 billion in 1997 and $1.60 billion in
1996, respectively. Sales of investments result from the active management of
the Company's investment portfolio. Because redemptions of
    
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<PAGE>   33
 
   
investments are generally involuntary and sales of investments are made in both
rising and falling interest rate environments, net gains from sales and
redemptions of investments fluctuate from period to period, and represent 1.25%,
0.11% and 0.12% of average invested assets for 1998, 1997 and 1996,
respectively. Active portfolio management involves the ongoing evaluation of
asset sectors, individual securities within the investment portfolio and the
reallocation of investments from sectors that are perceived to be relatively
overvalued to sectors that are perceived to be relatively undervalued. The
intent of the Company's active portfolio management is to maximize total returns
on the investment portfolio, taking into account credit, option, liquidity and
interest-rate risk.
    
 
   
     Impairment writedowns include $9.4 million of provisions applied to
partnerships during 1998 and $15.7 million and $15.2 million of provisions
applied to non-income producing land owned in Arizona during 1997 and 1996,
respectively. The statutory carrying value of this land had been guaranteed by
the Company's ultimate Parent, SunAmerica Inc. ("SunAmerica"). SunAmerica made a
capital contribution of $28.4 million on December 31, 1996 to the Company
through the Company's direct parent in exchange for the termination of its
guaranty with respect to this land. Accordingly, the Company reduced the
carrying value of this land to estimated fair value to reflect the full
termination of the guaranty. Impairment writedowns represent 0.50%, 0.77% and
0.73% of average invested assets for 1998, 1997 and 1996, respectively. For the
five years ended September 30, 1998, impairment writedowns as a percentage of
average invested assets have ranged from 0.28% to 0.91% and have averaged 0.64%.
Such writedowns are based upon estimates of the net realizable value of the
applicable assets. Actual realization will be dependent upon future events.
    
 
   
     VARIABLE ANNUITY FEES are based on the market value of assets in separate
accounts supporting variable annuity contracts. Such fees totaled $200.9 million
in 1998, $139.5 million in 1997 and $104.0 million in 1996. These increased fees
reflect growth in average variable annuity assets, due to increased market
values, the receipt of variable annuity premiums and net exchanges into the
separate accounts from the fixed accounts of variable annuity contracts,
partially offset by surrenders. Variable annuity fees represent 1.9%, 1.8% and
1.8% of average variable annuity assets for 1998, 1997 and 1996, respectively.
Variable annuity assets averaged $10.70 billion during 1998, $7.55 billion
during 1997 and $5.70 billion during 1996. Variable annuity premiums, which
exclude premiums allocated to the fixed accounts of variable annuity products,
have aggregated $1.82 billion in 1998, $1.27 billion in 1997 and $919.8 million
in 1996. These amounts represent 19%, 20% and 18% of variable annuity reserves
at the beginning of the respective periods.
    
 
   
     Sales of variable annuity products (which include premiums allocated to the
fixed accounts) ("Variable Annuity Product Sales") amounted to $3.33 billion,
$2.37 billion and $1.66 billion in 1998, 1997 and 1996, respectively, and
primarily reflect sales of the Company's flagship variable annuity, Polaris.
Polaris is a multimanager variable annuity that offers investors a choice of 26
variable funds and 7 guaranteed fixed-rate funds. Increases in Variable Annuity
Product Sales are due, in part, to market share gains through enhanced
distribution efforts and growing consumer demand for flexible retirement savings
products that offer a variety of equity, fixed income and guaranteed fixed
account investment choices. In recent weeks, subsequent to the Company's fiscal
year end, sales of variable annuities have slowed as investors paused to
reevaluate their investment decisions in light of volatile markets. The Company
believes that fluctuating market conditions increase the value of financial
planning services and make the flexibility and security of variable annuities
even more attractive.
    
 
   
     The Company has encountered increased competition in the variable annuity
marketplace during recent years and anticipates that the market will remain
highly competitive for the foreseeable future. Also, from time to time, Federal
initiatives are proposed which could affect the taxation of variable annuities
and annuities generally.
    
 
   
     NET RETAINED COMMISSIONS are primarily derived from commissions on the
sales of nonproprietary investment products by the Company's broker-dealer
subsidiary, after deducting the substantial portion of such commissions that is
passed on to registered representatives. Net retained commissions totaled $48.6
million in 1998, $39.1 million in 1997 and $31.5 million in 1996. Broker-dealer
sales (mainly sales of general securities, mutual funds and annuities) totaled
$14.37 billion in 1998,
    
 
                                       31
<PAGE>   34
 
   
$11.56 billion in 1997 and $8.75 billion in 1996. The increases in sales and net
retained commissions reflect higher average production per representative and
generally favorable market conditions and, in 1997, a greater number of
registered representatives due primarily to the transfer of representatives from
an affiliated broker-dealer. Increases in net retained commissions may not be
proportionate to increases in sales primarily due to differences in sales mix.
    
 
   
     SURRENDER CHARGES on fixed and variable annuities totaled $7.4 million in
1998, $5.5 million in 1997 and $5.2 million in 1996. Surrender charges generally
are assessed on annuity withdrawals at declining rates during the first seven
years of an annuity contract. Withdrawal payments, which include surrenders and
lump-sum annuity benefits, totaled $1.14 billion in 1998, $1.06 billion in 1997
and $898.0 million in 1996. These payments represent 9.0%, 11.2% and 12.4%,
respectively, of average fixed and variable annuity reserves. Withdrawals
include variable annuity withdrawals from the separate accounts totaling $952.1
million (8.9% of average variable annuity reserves), $822.0 million (10.9% of
average variable annuity reserves) and $634.1 million (11.2% of average variable
reserves) in 1998, 1997 and 1996, respectively. Management anticipates that
withdrawal rates will remain relatively stable for the foreseeable future.
    
 
   
     ASSET MANAGEMENT FEES, which include investment advisory fees and 12b-1
distribution fees, are based on the market value of assets managed in mutual
funds by SunAmerica Asset Management Corp. Such fees totaled $29.6 million on
average assets managed of $2.89 billion in 1998, $25.8 million on average assets
managed of $2.34 billion in 1997 and $25.4 million on average assets managed of
$2.14 billion in 1996. Asset management fees are not proportionate to average
assets managed, principally due to changes in product mix. Sales of mutual
funds, excluding sales of money market accounts, aggregated $853.6 million in
1998, compared with $454.8 million in 1997 and $223.4 million in 1996. The
significant increases in sales principally resulted from sales of the Company's
"Style Select Series" product (which was introduced in November 1996) and the
introduction in June 1998 of the "Dogs" of Wall Street. The "Style Select
Series" is a group of mutual funds which are each managed by three
industry-recognized fund managers. The "Dogs" of Wall Street fund contains 30
large capitalization value stocks which are selected by strict criteria. Sales
of these products totaled $611.1 million in 1998, compared with $267.8 million
in 1997, reflecting the addition of five new Style Select funds, which more than
doubled the number of Style Select funds to nine, and generally favorable market
conditions. Redemptions of mutual funds, excluding redemptions of money market
accounts, amounted to $402.5 million in 1998, $412.8 million in 1997 and $379.9
million in 1996, which represent 17.5%, 22.0% and 21.4%, respectively, of
average mutual fund assets.
    
 
   
     GENERAL AND ADMINISTRATIVE EXPENSES totaled $96.1 million in 1998, compared
with $98.8 million in 1997 and $81.6 million in 1996. General and administrative
expenses remain closely controlled through a company-wide cost containment
program and continue to represent less than 1% of average total assets.
    
 
   
     AMORTIZATION OF DEFERRED ACQUISITION COSTS totaled $72.7 million in 1998,
compared with $66.9 million in 1997 and $57.5 million in 1996. The increases in
amortization were primarily due to additional fixed and variable annuity and
mutual fund sales and the subsequent amortization of related deferred
commissions and other direct selling costs.
    
 
   
     ANNUAL COMMISSIONS represent renewal commissions paid quarterly in arrears
to maintain the persistency of certain of the Company's variable annuity
contracts. Substantially all of the Company's currently available variable
annuity products allow for an annual commission payment option in return for a
lower immediate commission. Annual commissions totaled $18.2 million in 1998,
$9.0 million in 1997 and $4.6 million in 1996. The increases in annual
commissions since 1996 reflect increased sales of annuities that offer this
commission option and gradual expiration of the initial fifteen- month periods
before such payments begin. The Company estimates that approximately 50% of the
average balances of its variable annuity products is currently subject to such
annual commissions. Based on current sales, this percentage is expected to
increase in future periods.
    
 
   
     INCOME TAX EXPENSE totaled $71.1 million in 1998, compared with $31.2
million in 1997 and $24.3 million in 1996, representing effective tax rates of
34% in 1998, 33% in 1997 and 35% in 1996.
    
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<PAGE>   35
 
   
FINANCIAL CONDITION AND LIQUIDITY
    
 
   
     SHAREHOLDER'S EQUITY increased 13.5% to $652.7 million at September 30,
1998 from $575.2 million at September 30, 1997, primarily due to $138.6 million
of net income recorded in 1998, which was partially offset by $51.2 million of
dividends paid in April 1998 and a $10.0 million decrease in net unrealized
gains on debt and equity securities available for sale.
    
 
   
     INVESTED ASSETS at September 30, 1998 totaled $2.73 billion, compared with
$2.61 billion at September 30, 1997. The Company manages most of its invested
assets internally. The Company's general investment philosophy is to hold
fixed-rate assets for long-term investment. Thus, it does not have a trading
portfolio. However, the Company has determined that all of its portfolio of
bonds, notes and redeemable preferred stocks (the "Bond Portfolio") is available
to be sold in response to changes in market interest rates, changes in relative
value of asset sectors and individual securities, changes in prepayment risk,
changes in the credit quality outlook for certain securities, and the Company's
need for liquidity and other similar factors.
    
 
   
     THE BOND PORTFOLIO, which constitutes 71% of the Company's total investment
portfolio, had an aggregate fair value that exceeded its amortized cost by $19.9
million at September 30, 1998, compared with an excess of $43.7 million at
September 30, 1997. The decline in the unrealized gain of the Bond Portfolio in
1998 was due to changes in market value of portions of the non-investment-grade
portfolio.
    
 
   
     At September 30, 1998, the Bond Portfolio (excluding $6.9 million of
redeemable preferred stocks) included $1.90 billion of bonds rated by Standard &
Poor's Corporation ("S&P"), Moody's Investors Service ("Moody's"), Duff & Phelps
Credit Rating Co. ("DCR"), Fitch Investors Service, L.P. ("Fitch") or the
National Association of Insurance Commissioners ("NAIC"), and $53.6 million of
bonds rated by the Company pursuant to statutory ratings guidelines established
by the NAIC. At September 30, 1998, approximately $1.78 billion of the Bond
Portfolio was investment grade, including $672.1 million of U.S.
government/agency securities and mortgage-backed securities ("MBSs").
    
 
   
     At September 30, 1998, the Bond Portfolio included $167.6 million of bonds
that were not investment grade. These non-investment-grade bonds accounted for
1.2% of the Company's total assets and 6.1% of its invested assets.
    
 
   
     Non-investment-grade securities generally provide higher yields and involve
greater risks than investment-grade securities because their issuers typically
are more highly leveraged and more vulnerable to adverse economic conditions
than investment-grade issuers. In addition, the trading market for these
securities is usually more limited than for investment-grade securities. The
Company had no material concentrations of non-investment-grade securities at
September 30, 1998.
    
 
   
     The table on the next page summarizes the Company's rated bonds by rating
classification as of September 30, 1998.
    
 
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<PAGE>   36
 
   
                      RATED BONDS BY RATING CLASSIFICATION
    
   
                             (DOLLARS IN THOUSANDS)
    
 
   
<TABLE>
<CAPTION>
                                                           ISSUES NOT RATED BY
                                                               S&P/MOODY'S/
      ISSUES RATED BY S&P/MOODY'S/DCR/FITCH            DCR/FITCH, BY NAIC CATEGORY                     TOTAL
- --------------------------------------------------   --------------------------------   ------------------------------------
     S&P/(MOODY'S)/                     ESTIMATED      NAIC                 ESTIMATED     TOTAL      ESTIMATED    PERCENT OF
      [DCR]/[FITCH]        AMORTIZED       FAIR      CATEGORY   AMORTIZED     FAIR      AMORTIZED       FAIR       INVESTED
       CATEGORY(1)            COST        VALUE        (2)        COST        VALUE        COST        VALUE        ASSETS
     --------------        ----------   ----------   --------   ---------   ---------   ----------   ----------   ----------
<S>                        <C>          <C>          <C>        <C>         <C>         <C>          <C>          <C>
AAA+ to A-
  (Aaa to A3)
  [AAA to A-]
  {AAA to A-}............  $  999,052   $1,025,861      1       $180,548    $192,187    $1,179,600   $1,218,048     44.54%
BBB+ to BBB-
  (Baal to Baa3)
  [BBB+ to BBB-]
  {BBB+ to BBB-}.........     420,087      418,723      2        145,025     143,532       565,112      562,255     20.56
BB+ to BB-
  (Ba1 to Ba3)
  [BB+ to BB-]
  {BB+ to BB-}...........      43,156       39,179      3         10,181       9,917        53,337       49,096      1.80
B+ to B-
  (B1 to B3)
  [B+ to B-]
  {B+ to B-}.............     113,376      102,375      4         12,954      12,065       126,330      114,440      4.18
CCC+ to C
  (Caa to C)
  [CCC]
  {CCC+ to C-}...........         760          655      5          3,500       3,274         4,260        3,929      0.14
CI to D
  [DD]
  {D}....................           0            0      6             99          99            99           99        --
                           ----------   ----------              --------    --------    ----------   ----------
TOTAL RATED ISSUES.......  $1,576,431   $1,586,793              $352,307    $361,074    $1,928,738   $1,947,867
                           ==========   ==========              ========    ========    ==========   ==========
</TABLE>
    
 
- ---------------
   
(1) S&P and Fitch rate debt securities in rating categories ranging from AAA
    (the highest) to D (in payment default). A plus (+) or minus (-) indicates
    the debt's relative standing within the rating category. A security rated
    BBB- or higher is considered investment grade. Moody's rates debt securities
    in rating categories ranging from Aaa (the highest) to C (extremely poor
    prospects of ever attaining any real investment standing). The number 1, 2
    or 3 (with 1 the highest and 3 the lowest) indicates the debt's relative
    standing within the rating category. A security rated Baa3 or higher is
    considered investment grade. DCR rates debt securities in rating categories
    ranging from AAA (the highest) to DD (in payment default). A plus (+) or
    minus (-) indicates the debt's relative standing within the rating category.
    A security rated BBB- or higher is considered investment grade. Issues are
    categorized based on the highest of the S&P, Moody's, DCR and Fitch ratings
    if rated by multiple agencies.
    
 
   
(2) Bonds and short-term promissory instruments are divided into six quality
    categories for NAIC rating purposes, ranging from 1 (highest) to 5 (lowest)
    for nondefaulted bonds plus one category, 6, for bonds in or near default.
    These six categories correspond with the S&P/Moody's/DCR/ Fitch rating
    groups listed above, with categories 1 and 2 considered investment grade.
    The NAIC categories include $53.6 million of assets that were rated by the
    Company pursuant to applicable NAIC rating guidelines.
    
 
   
     Senior secured loans ("Secured Loans") are included in the Bond Portfolio
and aggregated $186.6 million at September 30, 1998. Secured Loans are senior to
subordinated debt and equity, and are secured by assets of the issuer. At
September 30, 1998, Secured Loans consisted of $71.6 million of publicly traded
securities and $115.0 million of privately traded securities. These Secured
Loans are composed of loans to 62 borrowers spanning 21 industries, with 32% of
these assets concentrated in financial institutions. No other industry
concentration constituted more than 9% of these assets.
    
 
   
     While the trading market for the Company's privately traded Secured Loans
is more limited than for publicly traded issues, management believes that
participation in these transactions has enabled the Company to improve its
investment yield. As a result of restrictive financial covenants, these
    
 
                                       34
<PAGE>   37
 
   
Secured Loans involve greater risk of technical default than do publicly traded
investment-grade securities. However, management believes that the risk of loss
upon default for these Secured Loans is mitigated by such financial covenants
and the collateral values underlying the Secured Loans. The Company's Secured
Loans are rated by S&P, Moody's, DCR, Fitch, the NAIC or by the Company,
pursuant to comparable statutory ratings guidelines established by the NAIC.
    
 
   
     MORTGAGE LOANS aggregated $391.4 million at September 30, 1998 and
consisted of 133 commercial first mortgage loans with an average loan balance of
approximately $2.9 million, collateralized by properties located in 29 states.
Approximately 21% of this portfolio was multifamily residential, 17% was office,
14% was manufactured housing, 13% was industrial, 11% was hotels and 24% was
other types. At September 30, 1998, approximately 21% and 14% of this portfolio
were secured by properties located in California and New York, respectively, and
no more than 8% of this portfolio was secured by properties located in any other
single state. At September 30, 1998, there were three mortgage loans with
outstanding balances of $10 million or more, which loans collectively aggregated
approximately 11% of this portfolio. At September 30, 1998, approximately 30% of
the mortgage loan portfolio consisted of loans with balloon payments due before
October 1, 2001. During 1998, 1997 and 1996, loans delinquent by more than 90
days, foreclosed loans and restructured loans have not been significant in
relation to the total mortgage loan portfolio.
    
 
   
     At September 30, 1998, approximately 11% of the mortgage loans were
seasoned loans underwritten to the Company's standards and purchased at or near
par from other financial institutions. Such loans generally have higher average
interest rates than loans that could be originated today. The balance of the
mortgage loan portfolio has been originated by the Company under strict
underwriting standards. Commercial mortgage loans on properties such as offices,
hotels and shopping centers generally represent a higher level of risk than do
mortgage loans secured by multifamily residences. This greater risk is due to
several factors, including the larger size of such loans and the more immediate
effects of general economic conditions on these commercial property types.
However, due to the seasoned nature of the Company's mortgage loan portfolio,
its emphasis on multifamily loans and its strict underwriting standards, the
Company believes that it has prudently managed the risk attributable to its
mortgage loan portfolio while maintaining attractive yields.
    
 
   
     OTHER INVESTED ASSETS aggregated $30.6 million at September 30, 1998,
including $15.0 million of collateralized bond obligations and collateralized
mortgage obligation residuals, $11.2 million of policy loans and $4.4 million of
investments in limited partnerships. The Company's limited partnership
interests, accounted for by using the cost method of accounting, are invested
primarily in a combination of debt and equity securities.
    
 
   
     ASSET-LIABILITY MATCHING is utilized by the Company to minimize the risks
of interest rate fluctuations and disintermediation. The Company believes that
its fixed-rate liabilities should be backed by a portfolio principally composed
of fixed-rate investments that generate predictable rates of return. The Company
does not have a specific target rate of return. Instead, its rates of return
vary over time depending on the current interest rate environment, the slope of
the yield curve, the spread at which fixed-rate investments are priced over the
yield curve, and general economic conditions. Its portfolio strategy is
constructed with a view to achieve adequate risk-adjusted returns consistent
with its investment objectives of effective asset-liability matching, liquidity
and safety. The Company's fixed-rate products incorporate surrender charges or
other restrictions in order to encourage persistency. Approximately 77% of the
Company's fixed annuity and GIC reserves had surrender penalties or other
restrictions at September 30, 1998.
    
 
   
     As part of its asset-liability matching discipline, the Company conducts
detailed computer simulations that model its fixed-rate assets and liabilities
under commonly used stress-test interest rate scenarios. With the results of
these computer simulations, the Company can measure the potential gain or loss
in fair value of its interest-rate sensitive instruments and seek to protect its
economic value and achieve a predictable spread between what it earns on its
invested assets and what it pays on its liabilities by designing its fixed-rate
products and conducting its investment operations to closely match the duration
of the fixed-rate assets to that of its fixed-rate liabilities. The Company's
    
 
                                       35
<PAGE>   38
 
   
fixed-rate assets include: cash and short-term investments; bonds, notes and
redeemable preferred stocks; mortgage loans; and investments in limited
partnerships that invest primarily in fixed-rate securities and are accounted
for by using the cost method. At September 30, 1998, these assets had an
aggregate fair value of $2.69 billion with a duration of 3.6. The Company's
fixed-rate liabilities include fixed annuities, subordinated notes and GICs. At
September 30, 1998, these liabilities had an aggregate fair value (determined by
discounting future contractual cash flows by related market rates of interest)
of $2.41 billion with a duration of 1.4. The Company's potential exposure due to
a 10% increase in prevailing interest rates from their September 30, 1998 levels
is a loss of $26.7 million in fair value of its fixed-rate assets that is not
offset by a decrease in the fair value of its fixed-rate liabilities. Because
the Company actively manages its assets and liabilities and has strategies in
place to minimize its exposure to loss as interest rate changes occur, it
expects that actual losses would be less than the estimated potential loss.
    
 
   
     Duration is a common option-adjusted measure for the price sensitivity of a
fixed-maturity portfolio to changes in interest rates. It measures the
approximate percentage change in the market value of a portfolio if interest
rates change by 100 basis points, recognizing the changes in cash flows
resulting from embedded options such as policy surrenders, investment
prepayments and bond calls. It also incorporates the assumption that the Company
will continue to utilize its existing strategies of pricing its fixed annuity
and GIC products, allocating its available cash flow amongst its various
investment portfolio sectors and maintaining sufficient levels of liquidity.
Because the calculation of duration involves estimation and incorporates
assumptions, potential changes in portfolio value indicated by the portfolio's
duration will likely be different from the actual changes experienced under
given interest rate scenarios, and the differences may be material.
    
 
   
     As a component of its asset and liability management strategy, the Company
utilizes interest rate swap agreements ("Swap Agreements") to match assets more
closely to liabilities. Swap Agreements are agreements to exchange with a
counterparty interest rate payments of differing character (for example,
variable-rate payments exchanged for fixed-rate payments) based on an underlying
principal balance (notional principal) to hedge against interest rate changes.
The Company typically utilizes Swap Agreements to create a hedge that
effectively converts floating-rate assets and liabilities into fixed-rate
instruments. At September 30, 1998, the Company had one outstanding Swap
Agreement with a notional principal amount of $21.5 million. This agreement
matures in December 2024.
    
 
   
     The Company also seeks to provide liquidity from time to time by using
reverse repurchase agreements ("Reverse Repos") and by investing in MBSs. It
also seeks to enhance its spread income by using Reverse Repos. Reverse Repos
involve a sale of securities and an agreement to repurchase the same securities
at a later date at an agreed upon price and are generally over-collateralized.
MBSs are generally investment-grade securities collateralized by large pools of
mortgage loans. MBSs generally pay principal and interest monthly. The amount of
principal and interest payments may fluctuate as a result of prepayments of the
underlying mortgage loans.
    
 
   
     There are risks associated with some of the techniques the Company uses to
provide liquidity, enhance its spread income and match its assets and
liabilities. The primary risk associated with the Company's Reverse Repos and
Swap Agreements is counterparty risk. The Company believes, however, that the
counterparties to its Reverse Repos and Swap Agreements are financially
responsible and that the counterparty risk associated with those transactions is
minimal. It is the Company's policy that these agreements are entered into with
counterparties who have a debt rating of A/A2 or better from both S&P and
Moody's. The Company continually monitors its credit exposure with respect to
these agreements. In addition to counterparty risk, Swap Agreements also have
interest rate risk. However, the Company's Swap Agreements typically hedge
variable-rate assets or liabilities, and interest rate fluctuations that
adversely affect the net cash received or paid under the terms of a Swap
Agreement would be offset by increased interest income earned on the
variable-rate assets or reduced interest expense paid on the variable-rate
liabilities. The primary risk associated with MBSs is that a changing interest
rate environment might cause prepayment of the underlying obligations at speeds
slower or faster than anticipated at the time of their purchase. As part of its
decision to purchase an MBS, the Company assesses the risk of prepayment by
analyzing the security's projected performance
    
                                       36
<PAGE>   39
 
   
over an array of interest-rate scenarios. Once an MBS is purchased, the Company
monitors its actual prepayment experience monthly to reassess the relative
attractiveness of the security with the intent to maximize total return.
    
 
   
     INVESTED ASSETS EVALUATION is routinely conducted by the Company.
Management identifies monthly those investments that require additional
monitoring and carefully reviews the carrying values of such investments at
least quarterly to determine whether specific investments should be placed on a
nonaccrual basis and to determine declines in value that may be other than
temporary. In making these reviews for bonds, management principally considers
the adequacy of any collateral, compliance with contractual covenants, the
borrower's recent financial performance, news reports and other externally
generated information concerning the creditor's affairs. In the case of publicly
traded bonds, management also considers market value quotations, if available.
For mortgage loans, management generally considers information concerning the
mortgaged property and, among other things, factors impacting the current and
expected payment status of the loan and, if available, the current fair value of
the underlying collateral. For investments in partnerships, management reviews
the financial statements and other information provided by the general partners.
    
 
   
     The carrying values of investments that are determined to have declines in
value that are other than temporary are reduced to net realizable value and, in
the case of bonds, no further accruals of interest are made. The provisions for
impairment on mortgage loans are based on losses expected by management to be
realized on transfers of mortgage loans to real estate, on the disposition and
settlement of mortgage loans and on mortgage loans that management believes may
not be collectible in full. Accrual of interest is suspended when principal and
interest payments on mortgage loans are past due more than 90 days.
    
 
   
     DEFAULTED INVESTMENTS, comprising all investments that are in default as to
the payment of principal or interest, totaled $0.9 million of mortgage loans at
September 30, 1998, and constituted less than 0.1% of total invested assets. At
September 30, 1997, defaulted investments totaled $1.4 million, including $0.5
million of bonds and notes and $0.9 million of mortgage loans, and constituted
less than 0.1% of total invested assets.
    
 
   
     SOURCES OF LIQUIDITY are readily available to the Company in the form of
the Company's existing portfolio of cash and short-term investments, Reverse
Repo capacity on invested assets and, if required, proceeds from invested asset
sales. At September 30, 1998, approximately $1.50 billion of the Company's Bond
Portfolio had an aggregate unrealized gain of $59.2 million, while approximately
$456.3 million of the Bond Portfolio had an aggregate unrealized loss of $39.3
million. In addition, the Company's investment portfolio currently provides
approximately $23.6 million of monthly cash flow from scheduled principal and
interest payments. Historically, cash flows from operations and from the sale of
the Company's annuity and GIC products have been more than sufficient in amount
to satisfy the Company's liquidity needs.
    
 
   
     Management is aware that prevailing market interest rates may shift
significantly and has strategies in place to manage either an increase or
decrease in prevailing rates. In a rising interest rate environment, the
Company's average cost of funds would increase over time as it prices its new
and renewing annuities and GICs to maintain a generally competitive market rate.
Management would seek to place new funds in investments that were matched in
duration to, and higher yielding than, the liabilities assumed. The Company
believes that liquidity to fund withdrawals would be available through incoming
cash flow, the sale of short-term or floating-rate instruments or Reverse Repos
on the Company's substantial MBS segment of the Bond Portfolio, thereby avoiding
the sale of fixed-rate assets in an unfavorable bond market.
    
 
   
     In a declining rate environment, the Company's cost of funds would decrease
over time, reflecting lower interest crediting rates on its fixed annuities and
GICs. Should increased liquidity be required for withdrawals, the Company
believes that a significant portion of its investments could be sold without
adverse consequences in light of the general strengthening that would be
expected in the bond market.
    
 
                                       37
<PAGE>   40
 
- --------------------------------------------------------------------------------
 
                                   PROPERTIES
- --------------------------------------------------------------------------------
 
   
     The Company's executive offices and its principal office are in leased
premises at 1 SunAmerica Center, Los Angeles, California. The Company, through
an affiliate, also leases office space in Woodland Hills, California. The
Company's broker-dealer and asset management subsidiaries lease offices in New
York, New York.
    
 
   
     The Company believes that such properties, including the equipment located
therein, are suitable and adequate to meet the requirements of its businesses.
    
 
- --------------------------------------------------------------------------------
 
                        DIRECTORS AND EXECUTIVE OFFICERS
- --------------------------------------------------------------------------------
 
   
     The directors and principal officers of Anchor National as of December 22,
1998 are listed below, together with information as to their ages, dates of
election and principal business occupations during the last five years (if other
than their present business occupations).
    
 
   
<TABLE>
<CAPTION>
                                                                       OTHER POSITIONS AND
                                                         YEAR            OTHER BUSINESS
                                    PRESENT             ASSUMED         EXPERIENCE WITHIN
       NAME          AGE          POSITION(S)         POSITION(S)       LAST FIVE YEARS**       FROM-TO
       ----          ---          -----------         -----------   -------------------------   -------
<S>                  <C>   <C>                        <C>           <C>                        <C>
Eli Broad*           65    Chairman,                     1994       Cofounded SAI
                           Chief Executive                          in 1957
                           Officer and President of
                           the Company
                           Chairman, Chief               1986
                           Executive Officer and
                           President of
                           SunAmerica Inc. ("SAI")
Jay S. Wintrob*      41    Executive Vice President      1991       (Joined SAI in 1987)
                           of the Company
                           Vice Chairman and             1998
                           Chief Operating Officer
                           of SAI
James R. Belardi*    41    Senior Vice President of      1992       (Joined SAI in 1986)
                           the Company
                           Executive Vice President      1995
                           of SAI
Jana Waring Greer*   46    Senior Vice President of      1991       (Joined SAI in 1974)
                           the Company and SAI
Peter McMillan, III  41    Director                                 Executive Vice President   1994-1998
                                                                    and Chief Investment
                                                                    Officer of
                                                                    SunAmerica Investments,
                                                                    Inc. (DE)
                                                                    Senior Vice President,     1989-1994
                                                                    SunAmerica Investments,
                                                                    Inc. (DE)
Scott L. Robinson*   52    Senior Vice President         1991       (Joined SAI in 1978)
                           of the Company
                           Senior Vice President and     1991
                           Controller of SAI
Susan L. Harris*     41    Senior Vice President and     1994       Vice President,            1994-1995
                           Secretary of the Company                 General Counsel-
                           Senior Vice President,        1995       Corporate Affairs and
                           General Counsel                          Secretary of SAI
                           and Secretary of SAI                     Vice President,            1989-1994
                                                                    Associate General
                                                                    Counsel and Secretary
                                                                    of SAI
                                                                    (Joined SAI in 1985)
</TABLE>
    
 
                                       38
<PAGE>   41
 
   
<TABLE>
<CAPTION>
                                                                       OTHER POSITIONS AND
                                                         YEAR            OTHER BUSINESS
                                    PRESENT             ASSUMED         EXPERIENCE WITHIN
       NAME          AGE          POSITION(S)         POSITION(S)       LAST FIVE YEARS**       FROM-TO
       ----          ---          -----------         -----------   -------------------------   -------
<S>                  <C>   <C>                        <C>           <C>                        <C>
James Rowan*         36    Senior Vice President of      1996       Vice President of SAI      1993-1995
                           the Company                              (Joined SAI in 1992)
                           Senior Vice President         1995
                           of SAI
N. Scott Gillis      45    Senior Vice President         1994       Vice President and         1989-1994
                           and Controller of the                    Controller, SunAmerica
                           Company                                  Life Companies ("SLC")
                           Vice President of SAI         1997       (Joined SAI in 1985)
Edwin R. Reoliquio   41    Senior Vice President         1995       Vice President and         1990-1995
                           and Chief Actuary                        Actuary, SLC
                           of the Company
Victor E. Akin       34    Senior Vice President         1996       Vice President, SLC        1995-1996
                           of the Company                           Director, Product          1994-1995
                                                                    Development, SLC
                                                                    Manager, Business          1993-1994
                                                                    Development, SLC
Scott H. Richland    36    Vice President                1994       Senior Vice President      1997-1998
                           of the Company                           and Treasurer of SAI
                           Senior Vice President         1997       Vice President and         1995-1997
                           of SAI                                   Treasurer of SAI
                                                                    Vice President and         1994-1995
                                                                    Assistant Treasurer
                                                                    of SAI
                                                                    Assistant Treasurer        1993-1994
                                                                    of SAI
                                                                    (Joined SAI in 1990)
David R. Bechtel     31    Vice President and            1998       Vice President,            1996-1998
                           Treasurer of the                         Deutsche Morgan
                           Company                                  Grenfell, Inc.
                           Vice President and            1998       Associate,                 1995-1996
                           Treasurer of SAI                         UBS Securities LLC
                                                                    Associate,                 1994
                                                                    Wachtell Lipton Rosen
                                                                    & Katz
                                                                    Associate,                 1993-1994
                                                                    Wells Fargo Nikko
                                                                    Investment Advisers
J. Franklin Grey     46    Vice President                1994       Director, Institutional    1991-1994
                           of the Company                           Marketing Capital Holding
                                                                    Corp.
                                                                    (Providian)
Keith B. Jones       47    Vice President                1992       (Joined SAI in 1986)
                           of the Company
Michael L.           45    Vice President                1993       (Joined SAI in 1983)
  Lindquist                of the Company
Edward P. Nolan,     49    Vice President                1993       (Joined SAI in 1989)
  Jr.                      of the Company
Gregory M. Outcalt   36    Vice President                1993       (Joined SAI in 1986)
                           of the Company
</TABLE>
    
 
- ---------------
   
* Also serves as director.
    
 
   
** Unless otherwise indicated, officers and positions are with SunAmerica, Inc.
    
 
                                       39
<PAGE>   42
 
- --------------------------------------------------------------------------------
 
                             EXECUTIVE COMPENSATION
- --------------------------------------------------------------------------------
 
   
     All of the executive officers of the Company also serve as employees of
SunAmerica Inc. or its affiliates and receive no compensation directly from the
Company. Some of the officers also serve as officers of other companies
affiliated with the Company. Allocations have been made as to each individual's
time devoted to his or her duties as an executive officer of the Company.
    
 
   
     The following table shows the cash compensation paid or earned, based on
these allocations, to the chief executive officer and top four executive
officers of the Company whose allocated compensation exceeds $100,000 for
services rendered in all capacities to the Company during 1998:
    
 
   
<TABLE>
<CAPTION>
          NAME OF INDIVIDUAL OR                       CAPACITIES IN             ALLOCATED CASH
             NUMBER IN GROUP                           WHICH SERVED              COMPENSATION
          ---------------------                       -------------             --------------
<S>                                         <C>                                 <C>
Eli Broad                                   Chairman, Chief Executive Officer     $1,482,778
                                            and President
Jay S. Wintrob                              Executive Vice President                 857,524
Jana Waring Greer                           Senior Vice President                    775,001
Peter McMillan                              Director                                 421,457
James R. Belardi                            Senior Vice President                    408,949
                                                                                  ==========
</TABLE>
    
 
   
     Directors of the Company who are also employees of SunAmerica Inc. or its
affiliates receive no compensation in addition to their compensation as
employees of SunAmerica Inc. or its affiliates.
    
 
   
SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT
    
 
   
     No shares of the Company are owned by any executive officer or director.
The Company is an indirect wholly owned subsidiary of SunAmerica Inc. Except for
Mr. Broad, the percentage of shares of SunAmerica Inc. beneficially owned by any
director does not exceed one percent of the class outstanding. At November 30,
1998, Mr. Broad was the beneficial owner of 13,015,360 shares of Common Stock of
SunAmerica Inc. (approximately 6.4% of the class outstanding) and 13,340,591
shares of Nontransferable Class B Common Stock of SunAmerica Inc. (approximately
82% of the class outstanding). Of the Common Stock, 1,053,738 shares represent
restricted shares granted under the Company's employee stock plans as to which
Mr. Broad has no investment power; and 9,283,050 shares represent employee stock
options held by Mr. Broad which are or will become exercisable on or before
January 30, 1999 and as to which he has no voting or investment power. Of the
Nontransferable Class B Stock, 12,284,360 shares are held directly by Mr. Broad;
and 1,056,231 shares are registered in the name of a corporation as to which Mr.
Broad exercises sole voting and dispositive powers. At November 30, 1998, all
directors and officers as a group beneficially owned 16,027,507 shares of Common
Stock (approximately 8% of the class outstanding) and 13,340,591 shares of
Nontransferable Class B Common Stock (approximately 82% of the class
outstanding).
    
 
                                       40
<PAGE>   43
 
- --------------------------------------------------------------------------------
 
                                   REGULATION
- --------------------------------------------------------------------------------
 
     Anchor National is subject to regulation and supervision by the insurance
regulatory agencies of the states in which it is authorized to transact
business. State insurance laws establish supervisory agencies with broad
administrative and supervisory powers. Principal among these powers are granting
and revoking licenses to transact business, regulating marketing and other trade
practices, operating guaranty associations, licensing agents, approving policy
forms, regulating certain premium rates, regulating insurance holding company
systems, establishing reserve requirements, prescribing the form and content of
required financial statements and reports, performing financial, market conduct
and other examinations, determining the reasonableness and adequacy of statutory
capital and surplus, defining acceptable accounting principles, regulating the
type, valuation and amount of investments permitted, and limiting the amount of
dividends that can be paid and the size of transactions that can be consummated
without first obtaining regulatory approval.
 
     During the last decade, the insurance regulatory framework has been placed
under increased scrutiny by various states, the federal government and the NAIC.
Various states have considered or enacted legislation that changes, and in many
cases increases, the states' authority to regulate insurance companies.
Legislation has been introduced from time to time in Congress that could result
in the federal government assuming some role in the regulation of insurance
companies or allowing combinations between insurance companies, banks and other
entities. In recent years, the NAIC has approved and recommended to the states
for adoption and implementation several regulatory initiatives designed to
reduce the risk of insurance company insolvencies and market conduct violations.
These initiatives include investment reserve requirements, risk-based capital
standards, codification of insurance accounting principles, new investment
standards and restrictions on an insurance company's ability to pay dividends to
its stockholders. The NAIC is also currently developing model laws relating to
product design and illustrations for annuity products. Current proposals are
still being debated and we are monitoring developments in this area and the
effects any changes would have on us.
 
     SunAmerica Asset Management is registered with the SEC as a registered
investment advisor under the Investment Advisors Act of 1940. The mutual funds
that it markets are subject to regulation under the Investment Company Act of
1940. SunAmerica Asset Management and the mutual funds are subject to regulation
and examination by the SEC. In addition, variable annuities and the related
separate accounts of the Company are subject to regulation by the SEC under the
Securities Act of 1933 and the Investment Company Act of 1940.
 
     Our broker-dealer subsidiary is subject to regulation and supervision by
the states in which it transacts business, as well as by the SEC and the
National Association of Securities Dealers ("NASD"). The NASD has broad
administrative and supervisory powers relative to all aspects of business and
may examine the subsidiary's business and accounts at any time.
 
- --------------------------------------------------------------------------------
 
                                   CUSTODIAN
- --------------------------------------------------------------------------------
 
     Chase Manhattan Bank, 270 Park Avenue, New York, New York 10017, serves as
the custodian of the assets of the separate account.
 
                                       41
<PAGE>   44
 
- --------------------------------------------------------------------------------
 
                               LEGAL PROCEEDINGS
- --------------------------------------------------------------------------------
 
     There are no pending legal proceedings affecting the separate account.
Anchor National and its subsidiaries engage in various kinds of routine
litigation. In management's opinion, these matters are not of material
importance to their respective total assets nor are they material with respect
to the separate account.
 
- --------------------------------------------------------------------------------
 
                            REGISTRATION STATEMENTS
- --------------------------------------------------------------------------------
 
     Anchor National is subject to the informational requirements of the
Securities and Exchange Act of 1934 (as amended). It files reports and other
information with the SEC to meet those requirements. You can inspect and copy
this information at SEC public facilities at the following locations:
 
WASHINGTON, DISTRICT OF COLUMBIA
450 Fifth Street, N.W., Room 1024
Washington, D.C. 20549
 
CHICAGO, ILLINOIS
500 West Madison Street
Chicago, IL 60661
 
NEW YORK, NEW YORK
7 World Trade Center, 13th Fl.
New York, NY 10048
 
     To obtain copies by mail contact the Washington, D.C. location. After you
pay the fees as prescribed by the rules and regulations of the SEC, the required
documents are mailed.
 
     Registration statements under the Securities Act of 1933, as amended,
related to the contracts offered by this prospectus are on file with the SEC.
This prospectus does not contain all of the information contained in the
registrations statement and its exhibits. For further information regarding the
separate account, Anchor National and its general account, the Variable
Portfolios and the contract, please refer to the registration statement and its
exhibits.
 
     The SEC also maintains a website (http://www.sec.gov) that contains the
SAI, materials incorporated by reference and other information filed
electronically with the SEC by Anchor National.
 
- --------------------------------------------------------------------------------
 
                            INDEPENDENT ACCOUNTANTS
- --------------------------------------------------------------------------------
 
     The financial statements of Anchor National as of September 30, 1998 and
1997 and for each of the three years in the period ended September 30, 1998
included in this prospectus have been so included in reliance on the report of
PricewaterhouseCoopers LLP, independent accountants, given on the authority of
said firm as experts in auditing and accounting.
 
                                       42
<PAGE>   45
 
- --------------------------------------------------------------------------------
 
               ADDITIONAL INFORMATION ABOUT THE SEPARATE ACCOUNT
- --------------------------------------------------------------------------------
 
     Additional information concerning the operations of the separate account is
contained in a Statement of Additional Information ("SAI"), which is available
without charge upon written request addressed to us at our Annuity Service
Center, P.O. Box 54299, Los Angeles, California 90054-0299 or by calling
(800)90-VISTA. The contents of the SAI are tabulated below.
 
                      STATEMENT OF ADDITIONAL INFORMATION
 
                               TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                                              PAGE
                                                              ----
<S>                                                           <C>
Performance Data............................................     1
Income Payments.............................................     3
Annuity Unit Values.........................................     3
Qualified Plans.............................................     6
Distribution of Contracts...................................    10
Financial Statements........................................    10
</TABLE>
    
 
- --------------------------------------------------------------------------------
 
                              FINANCIAL STATEMENTS
- --------------------------------------------------------------------------------
 
     The financial statements of Anchor National which are included in this
prospectus should be considered only as bearing on the ability of the Company to
meet its obligations with respect to amounts allocated to the General Account
and with respect to the death benefit and the Company's assumption of the
mortality and expense risks and the risk that the withdrawal charge will be
insufficient to cover the cost of distributing the contracts. They should not be
considered as bearing on the investment performance of the Underlying Fund
shares held in the Variable Portfolios of the separate account. The value of the
interests of owners, participants, Annuitants, payees and Beneficiaries under
the variable portion of the contracts is affected primarily by the investment
results of the Underlying Funds.
 
                                       43
<PAGE>   46
 
   
                       REPORT OF INDEPENDENT ACCOUNTANTS
    
 
   
To the Board of Directors and Shareholder of
    
   
Anchor National Life Insurance Company
    
 
   
     In our opinion, the accompanying consolidated balance sheet and the related
consolidated income statement and statement of cash flows present fairly, in all
material respects, the financial position of Anchor National Life Insurance
Company and its subsidiaries (the "Company")at September 30, 1998 and 1997, and
the results of their operations and their cash flows for each of the three years
in the period ended September 30, 1998, in conformity with generally accepted
accounting principles. These financial statements are the responsibility of the
Company's management; our responsibility is to express an opinion on these
financial statements based on our audits. We conducted our audits of these
statements in accordance with generally accepted auditing standards which
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, assessing the accounting principles
used and significant estimates made by management, and evaluating the overall
financial statement presentation. We believe that our audits provide a
reasonable basis for the opinion expressed above.
    
 
   
PricewaterhouseCoopers LLP
    
   
Los Angeles, California
    
   
November 9, 1998
    
 
                                       44
<PAGE>   47
 
   
                     ANCHOR NATIONAL LIFE INSURANCE COMPANY
    
 
   
                           CONSOLIDATED BALANCE SHEET
    
 
   
<TABLE>
<CAPTION>
                                                                    AT SEPTEMBER 30,
                                                           ----------------------------------
                                                                1998               1997
                                                           ---------------    ---------------
<S>                                                        <C>                <C>
ASSETS
INVESTMENTS:
  Cash and short-term investments........................  $   333,735,000    $   113,580,000
  Bonds, notes and redeemable preferred stocks available
     for sale, at fair value (amortized cost: 1998,
     $1,934,863,000; 1997, $1,942,485,000)...............    1,954,754,000      1,986,194,000
  Mortgage loans.........................................      391,448,000        339,530,000
  Common stocks available for sale, at fair value (cost:
     1998, $115,000; 1997, $271,000).....................          169,000          1,275,000
  Real estate............................................       24,000,000         24,000,000
  Other invested assets..................................       30,636,000        143,722,000
                                                           ---------------    ---------------
          Total investments..............................    2,734,742,000      2,608,301,000
Variable annuity assets held in separate accounts........   11,133,569,000      9,343,200,000
Accrued investment income................................       26,408,000         21,759,000
Deferred acquisition costs...............................      539,850,000        536,155,000
Income taxes currently receivable........................        5,869,000                 --
Other assets.............................................       85,926,000         61,524,000
                                                           ---------------    ---------------
TOTAL ASSETS.............................................  $14,526,364,000    $12,570,939,000
                                                           ===============    ===============
 
LIABILITIES AND SHAREHOLDER'S EQUITY
Reserves, payables and accrued liabilities:
  Reserves for fixed annuity contracts...................  $ 2,189,272,000    $ 2,098,803,000
  Reserves for guaranteed investment contracts...........      282,267,000        295,175,000
  Payable to brokers for purchases of securities.........       27,053,000            263,000
  Income taxes currently payable.........................               --         32,265,000
  Other liabilities......................................      106,594,000        122,728,000
                                                           ---------------    ---------------
          Total reserves, payables and accrued
            liabilities..................................    2,605,186,000      2,549,234,000
                                                           ---------------    ---------------
Variable annuity liabilities related to separate
  accounts...............................................   11,133,569,000      9,343,200,000
                                                           ---------------    ---------------
Subordinated notes payable to Parent.....................       39,182,000         36,240,000
                                                           ---------------    ---------------
Deferred income taxes....................................       95,758,000         67,047,000
                                                           ---------------    ---------------
Shareholder's equity:
  Common Stock...........................................        3,511,000          3,511,000
  Additional paid-in capital.............................      308,674,000        308,674,000
  Retained earnings......................................      332,069,000        244,628,000
  Net unrealized gains on debt and equity securities
     available for sale..................................        8,415,000         18,405,000
                                                           ---------------    ---------------
  Total shareholder's equity.............................      652,669,000        575,218,000
                                                           ---------------    ---------------
  TOTAL LIABILITIES AND SHAREHOLDER'S EQUITY.............  $14,526,364,000    $12,570,939,000
                                                           ===============    ===============
</TABLE>
    
 
   
                            See accompanying notes.
    
                                       45
<PAGE>   48
 
   
                     ANCHOR NATIONAL LIFE INSURANCE COMPANY
    
 
   
                         CONSOLIDATED INCOME STATEMENT
    
 
   
<TABLE>
<CAPTION>
                                                        YEARS ENDED SEPTEMBER 30,
                                             -----------------------------------------------
                                                 1998             1997             1996
                                             -------------    -------------    -------------
<S>                                          <C>              <C>              <C>
Investment income..........................  $ 221,966,000    $ 210,759,000    $ 164,631,000
                                             -------------    -------------    -------------
Interest expense on:
  Fixed annuity contracts..................   (112,695,000)    (109,217,000)     (82,690,000)
  Guaranteed investment contracts..........    (17,787,000)     (22,650,000)     (19,974,000)
  Senior indebtedness......................     (1,498,000)      (2,549,000)      (2,568,000)
Subordinated notes payable to Parent.......     (3,114,000)      (3,142,000)      (2,556,000)
                                             -------------    -------------    -------------
          Total interest expense...........   (135,094,000)    (137,558,000)    (107,788,000)
                                             -------------    -------------    -------------
NET INVESTMENT INCOME......................     86,872,000       73,201,000       56,843,000
                                             -------------    -------------    -------------
NET REALIZED INVESTMENT GAINS
  (LOSSES).................................     19,482,000      (17,394,000)     (13,355,000)
                                             -------------    -------------    -------------
Fee income:
  Variable annuity fees....................    200,867,000      139,492,000      103,970,000
  Net retained commissions.................     48,561,000       39,143,000       31,548,000
  Asset management fees....................     29,592,000       25,764,000       25,413,000
  Surrender charges........................      7,404,000        5,529,000        5,184,000
  Other fees...............................      3,938,000        3,218,000        3,390,000
                                             -------------    -------------    -------------
          TOTAL FEE INCOME.................    290,362,000      213,146,000      169,505,000
                                             -------------    -------------    -------------
GENERAL AND ADMINISTRATIVE
  EXPENSES.................................    (96,102,000)     (98,802,000)     (81,552,000)
                                             -------------    -------------    -------------
AMORTIZATION OF DEFERRED
  ACQUISITION COSTS........................    (72,713,000)     (66,879,000)     (57,520,000)
                                             -------------    -------------    -------------
ANNUAL COMMISSIONS.........................    (18,209,000)      (8,977,000)      (4,613,000)
                                             -------------    -------------    -------------
PRETAX INCOME..............................    209,692,000       94,295,000       69,308,000
Income tax expense.........................    (71,051,000)     (31,169,000)     (24,252,000)
                                             -------------    -------------    -------------
NET INCOME.................................  $ 138,641,000    $  63,126,000    $  45,056,000
                                             =============    =============    =============
</TABLE>
    
 
   
                            See accompanying notes.
    
                                       46
<PAGE>   49
 
   
                     ANCHOR NATIONAL LIFE INSURANCE COMPANY
    
 
   
                      CONSOLIDATED STATEMENT OF CASH FLOWS
    
 
   
<TABLE>
<CAPTION>
                                                                            YEARS ENDED SEPTEMBER 30,
                                                              -----------------------------------------------------
                                                                   1998               1997               1996
                                                              ---------------    ---------------    ---------------
<S>                                                           <C>                <C>                <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net income................................................  $   138,641,000    $    63,126,000    $    45,056,000
  Adjustments to reconcile net income to net cash provided
    by operating activities:
    Interest credited to:
      Fixed annuity contracts...............................      112,695,000        109,217,000         82,690,000
      Guaranteed investment contracts.......................       17,787,000         22,650,000         19,974,000
    Net realized investment (gains) losses..................      (19,482,000)        17,394,000         13,355,000
    Amortization (accretion) of net premiums (discounts) on
      investments...........................................          447,000        (18,576,000)        (8,976,000)
    Amortization of goodwill................................        1,422,000          1,187,000          1,169,000
    Provision for deferred income taxes.....................       34,087,000        (16,024,000)        (3,351,000)
  Change in:
    Accrued investment income...............................       (4,649,000)        (2,084,000)        (5,483,000)
    Deferred acquisition costs..............................     (160,926,000)      (113,145,000)       (60,941,000)
    Other assets............................................      (19,374,000)       (14,598,000)        (8,000,000)
    Income taxes currently payable..........................      (38,134,000)        10,779,000          5,766,000
    Other liabilities.......................................       (2,248,000)        14,187,000          5,474,000
  Other, net................................................       (5,599,000)           418,000           (129,000)
                                                              ---------------    ---------------    ---------------
NET CASH PROVIDED BY OPERATING ACTIVITIES...................       54,667,000         74,531,000         86,604,000
                                                              ---------------    ---------------    ---------------
CASH FLOWS FROM FINANCING ACTIVITIES:
  Premium receipts on:
    Fixed annuity contracts.................................    1,512,994,000      1,097,937,000        741,774,000
    Guaranteed investment contracts.........................        5,619,000         55,000,000        134,967,000
  Net exchanges from the fixed accounts of variable annuity
    contracts...............................................   (1,303,790,000)      (620,367,000)      (236,705,000)
  Withdrawal payments on:
    Fixed annuity contracts.................................     (191,690,000)      (242,589,000)      (263,614,000)
    Guaranteed investment contracts.........................      (36,313,000)      (198,062,000)       (16,492,000)
  Claims and annuity payments on fixed annuity contracts....      (40,589,000)       (35,731,000)       (31,107,000)
  Net receipts from (repayments of) other short-term
    financings..............................................      (10,944,000)        34,239,000       (119,712,000)
  Net receipts from a modified coinsurance transaction......      166,631,000                 --                 --
  Capital contributions received............................               --         28,411,000         27,387,000
  Dividends paid............................................      (51,200,000)       (25,500,000)       (29,400,000)
                                                              ---------------    ---------------    ---------------
NET CASH PROVIDED BY FINANCING ACTIVITIES...................       50,718,000         93,338,000        207,098,000
                                                              ---------------    ---------------    ---------------
CASH FLOWS FROM INVESTING ACTIVITIES:
  Purchases of:
    Bonds, notes and redeemable preferred stocks............  $(1,970,502,000)   $(2,566,211,000)   $(1,937,890,000)
    Mortgage loans..........................................     (131,386,000)      (266,771,000)       (15,000,000)
    Other investments, excluding short-term investments.....               --        (75,556,000)       (36,770,000)
  Sales of:
    Bonds, notes and redeemable preferred stocks............    1,602,079,000      2,299,063,000      1,241,928,000
    Real estate.............................................               --                 --            900,000
    Other investments, excluding short-term investments.....       42,458,000          6,421,000          4,937,000
  Redemptions and maturities of:
    Bonds, notes and redeemable preferred stocks............      424,393,000        376,847,000        288,969,000
    Mortgage loans..........................................       80,515,000         25,920,000         11,324,000
    Other investments, excluding short-term investments.....       67,213,000         23,940,000         20,749,000
                                                              ---------------    ---------------    ---------------
NET CASH PROVIDED (USED) BY INVESTING ACTIVITIES............      114,770,000       (176,347,000)      (420,853,000)
                                                              ---------------    ---------------    ---------------
NET INCREASE (DECREASE) IN CASH AND SHORT-TERM
  INVESTMENTS...............................................      220,155,000         (8,478,000)      (127,151,000)
CASH AND SHORT-TERM INVESTMENTS AT BEGINNING OF PERIOD......      113,580,000        122,058,000        249,209,000
                                                              ---------------    ---------------    ---------------
CASH AND SHORT-TERM INVESTMENTS AT END OF PERIOD............  $   333,735,000    $   113,580,000    $   122,058,000
                                                              ===============    ===============    ===============
SUPPLEMENTAL CASH FLOW INFORMATION:
  Interest paid on indebtedness.............................  $     3,912,000    $     7,032,000    $     5,982,000
                                                              ===============    ===============    ===============
  Net income taxes paid.....................................  $    74,932,000    $    36,420,000    $    22,031,000
                                                              ===============    ===============    ===============
</TABLE>
    
 
   
                             See accompanying notes
    
                                       47
<PAGE>   50
 
   
                     ANCHOR NATIONAL LIFE INSURANCE COMPANY
    
 
   
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
    
 
   
1. NATURE OF OPERATIONS
    
 
   
     Anchor National Life Insurance Company (the "Company") is a wholly owned
indirect subsidiary of SunAmerica Inc. (the "Parent"). The Company is an
Arizona-domiciled life insurance company and conducts its business through three
segments: annuity operations, asset management operations and broker-dealer
operations. Annuity operations include the sale and administration of fixed and
variable annuities and guaranteed investment contracts. Asset management
operations, which includes the sale and management of mutual funds, is conducted
by SunAmerica Asset Management Corp. Broker-dealer operations include the sale
of securities and financial services products, and are conducted by Royal
Alliance Associates, Inc.
    
 
   
     The operations of the Company are influenced by many factors, including
general economic conditions, monetary and fiscal policies of the federal
government, and policies of state and other regulatory authorities. The level of
sales of the Company's financial products is influenced by many factors,
including general market rates of interest, strength, weakness and volatility of
equity markets, and terms and conditions of competing financial products. The
Company is exposed to the typical risks normally associated with a portfolio of
fixed-income securities, namely interest rate, option, liquidity and credit
risk. The Company controls its exposure to these risks by, among other things,
closely monitoring and matching the duration of its assets and liabilities,
monitoring and limiting prepayment and extension risk in its portfolio,
maintaining a large percentage of its portfolio in highly liquid securities, and
engaging in a disciplined process of underwriting, reviewing and monitoring
credit risk. The Company also is exposed to market risk, as market volatility
may result in reduced fee income in the case of assets managed in mutual funds
and held in separate accounts.
    
 
   
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
    
 
   
     BASIS OF PRESENTATION: The accompanying consolidated financial statements
have been prepared in accordance with generally accepted accounting principles
and include the accounts of the Company and all of its wholly owned
subsidiaries. All significant intercompany accounts and transactions are
eliminated in consolidation. Certain prior period amounts have been reclassified
to conform with the 1998 presentation.
    
 
   
     The preparation of financial statements in conformity with generally
accepted accounting principles requires the use of estimates and assumptions
that affect the amounts reported in the financial statements and the
accompanying notes. Actual results could differ from those estimates.
    
 
   
     INVESTMENTS: Cash and short-term investments primarily include cash,
commercial paper, money market investments, repurchase agreements and short-term
bank participations. All such investments are carried at cost plus accrued
interest, which approximates fair value, have maturities of three months or less
and are considered cash equivalents for purposes of reporting cash flows.
    
 
   
     Bonds, notes and redeemable preferred stocks available for sale and common
stocks are carried at aggregate fair value and changes in unrealized gains or
losses, net of tax, are credited or charged directly to shareholder's equity.
Bonds, notes and redeemable preferred stocks are reduced to estimated net
realizable value when necessary for declines in value considered to be other
than temporary. Estimates of net realizable value are subjective and actual
realization will be dependent upon future events.
    
 
   
     Mortgage loans are carried at amortized unpaid balances, net of provisions
for estimated losses. Real estate is carried at the lower of cost or fair value.
Other invested assets include investments in limited partnerships, which are
accounted for by using the cost method of accounting; separate account
investments; leveraged leases; policy loans, which are carried at unpaid
balances; and collateralized mortgage obligation residuals.
    
 
                                       48
<PAGE>   51
   
                     ANCHOR NATIONAL LIFE INSURANCE COMPANY
    
 
   
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
    
 
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
   
     Realized gains and losses on the sale of investments are recognized in
operations at the date of sale and are determined by using the specific cost
identification method. Premiums and discounts on investments are amortized to
investment income by using the interest method over the contractual lives of the
investments.
    
 
   
     INTEREST RATE SWAP AGREEMENTS: The net differential to be paid or received
on interest rate swap agreements ("Swap Agreements") entered into to reduce the
impact of changes in interest rates is recognized over the lives of the
agreements, and such differential is classified as Investment Income or Interest
Expense in the income statement. Initially, Swap Agreements are designated as
hedges and, therefore, are not marked to market. However, when a hedged
asset/liability is sold or repaid before the related Swap Agreement matures, the
Swap Agreement is marked to market and any gain/loss is classified with any
gain/loss realized on the disposition of the hedged asset/liability.
Subsequently, the Swap Agreement is marked to market and the resulting change in
fair value is included in Investment Income in the income statement. When a Swap
Agreement that is designated as a hedge is terminated before its contractual
maturity, any resulting gain/loss is credited/charged to the carrying value of
the asset/liability that it hedged and is treated as a premium/discount for the
remaining life of the asset/liability.
    
 
   
     DEFERRED ACQUISITION COSTS: Policy acquisition costs are deferred and
amortized, with interest, in relation to the incidence of estimated gross
profits to be realized over the estimated lives of the annuity contracts.
Estimated gross profits are composed of net interest income, net realized
investment gains and losses, variable annuity fees, surrender charges and direct
administrative expenses. Costs incurred to sell mutual funds are also deferred
and amortized over the estimated lives of the funds obtained. Deferred
acquisition costs ("DAC") consist of commissions and other costs that vary with,
and are primarily related to, the production or acquisition of new business.
    
 
   
     As debt and equity securities available for sale are carried at aggregate
fair value, an adjustment is made to DAC equal to the change in amortization
that would have been recorded if such securities had been sold at their stated
aggregate fair value and the proceeds reinvested at current yields. The change
in this adjustment, net of tax, is included with the change in net unrealized
gains/losses on debt and equity securities available for sale that is credited
or charged directly to shareholder's equity. DAC have been decreased by
$7,000,000 at September 30, 1998 and $16,400,000 at September 30, 1997 for this
adjustment.
    
 
   
     VARIABLE ANNUITY ASSETS AND LIABILITIES: The assets and liabilities
resulting from the receipt of variable annuity premiums are segregated in
separate accounts. The Company receives administrative fees for managing the
funds and other fees for assuming mortality and certain expense risks. Such fees
are included in Variable Annuity Fees in the income statement.
    
 
   
     GOODWILL: Goodwill, amounting to $23,339,000 at September 30, 1998, is
amortized by using the straight-line method over periods averaging 25 years and
is included in Other Assets in the balance sheet. Goodwill is evaluated for
impairment when events or changes in economic conditions indicate that the
carrying amount may not be recoverable.
    
 
   
     CONTRACTHOLDER RESERVES: Contractholder reserves for fixed annuity
contracts and guaranteed investment contracts are accounted for as
investment-type contracts in accordance with Statement of Financial Accounting
Standards No. 97, "Accounting and Reporting by Insurance Enterprises for Certain
Long-Duration Contracts and for Realized Gains and Losses from the Sale of
Investments," and are recorded at accumulated value (premiums received, plus
accrued interest, less withdrawals and assessed fees).
    
 
                                       49
<PAGE>   52
   
                     ANCHOR NATIONAL LIFE INSURANCE COMPANY
    
 
   
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
    
 
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
   
     FEE INCOME: Variable annuity fees, asset management fees and surrender
charges are recorded in income as earned. Net retained commissions are
recognized as income on a trade date basis.
    
 
   
     INCOME TAXES: The Company is included in the consolidated federal income
tax return of the Parent and files as a "life insurance company" under the
provisions of the Internal Revenue Code of 1986. Income taxes have been
calculated as if the Company filed a separate return. Deferred income tax assets
and liabilities are recognized based on the difference between financial
statement carrying amounts and income tax bases of assets and liabilities using
enacted income tax rates and laws.
    
 
   
     RECENTLY ISSUED ACCOUNTING STANDARDS: In June 1997, the Financial
Accounting Standards Board (the "FASB") issued Statement of Financial Accounting
Standards No. 130, "Reporting Comprehensive Income" ("SFAS 130") and Statement
of Financial Accounting Standards No. 131, "Disclosure about Segments of an
Enterprise and Related Information" ("SFAS 131").
    
 
   
     SFAS 130 establishes standards for reporting comprehensive income and its
components in a full set of general purpose financial statements. SFAS 130 is
effective for the Company as of October 1, 1998 and is not included in these
financial statements.
    
 
   
     SFAS 131 establishes standards for the disclosure of information about the
Company's operating segments. SFAS 131 is effective for the year ending
September 30, 1999 and is not included in these financial statements.
    
 
   
     Implementation of SFAS 130 and SFAS 131 will not have an impact on the
Company's results of operations, financial condition or liquidity.
    
 
   
     In June 1998, the FASB issued Statement of Financial Accounting Standards
No. 133, "Accounting for Derivative Instruments and Hedging Activities" ("SFAS
133"). SFAS 133 addresses the accounting for derivative instruments, including
certain derivative instruments embedded in other contracts, and hedging
activities. SFAS 133 is effective for the Company as of October 1, 1999 and is
not included in these financial statements. The Company has not completed its
analysis of the effect of SFAS 133, but management believes that it will not
have a material impact on the Company's results of operations, financial
condition or liquidity.
    
 
                                       50
<PAGE>   53
   
                     ANCHOR NATIONAL LIFE INSURANCE COMPANY
    
 
   
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
    
 
   
3. INVESTMENTS
    
 
   
     The amortized cost and estimated fair value of bonds, notes and redeemable
preferred stocks available for sale by major category follow:
    
 
   
<TABLE>
<CAPTION>
                                                       AMORTIZED         ESTIMATED
                                                          COST           FAIR VALUE
                                                     --------------    --------------
<S>                                                  <C>               <C>
AT SEPTEMBER 30, 1998:
  Securities of the United States Government.......  $   84,377,000    $   88,239,000
  Mortgage-backed securities.......................     569,613,000       584,007,000
  Securities of public utilities...................     108,431,000       106,065,000
  Corporate bonds and notes........................     883,890,000       884,209,000
  Redeemable preferred stocks......................       6,125,000         6,888,000
  Other debt securities............................     282,427,000       285,346,000
                                                     --------------    --------------
          Total....................................  $1,934,863,000    $1,954,754,000
                                                     ==============    ==============
AT SEPTEMBER 30, 1997:
  Securities of the United States Government.......  $   18,496,000    $   18,962,000
  Mortgage-backed securities.......................     636,018,000       649,196,000
  Securities of public utilities...................      22,792,000        22,893,000
  Corporate bonds and notes........................     984,573,000     1,012,559,000
  Redeemable preferred stocks......................       6,125,000         6,681,000
  Other debt securities............................     274,481,000       275,903,000
                                                     --------------    --------------
          Total....................................  $1,942,485,000    $1,986,194,000
                                                     ==============    ==============
</TABLE>
    
 
   
     The amortized cost and estimated fair value of bonds, notes and redeemable
preferred stocks available for sale by contractual maturity, as of September 30,
1998, follow:
    
 
   
<TABLE>
<CAPTION>
                                                       AMORTIZED         ESTIMATED
                                                          COST           FAIR VALUE
                                                     --------------    --------------
<S>                                                  <C>               <C>
Due in one year or less............................  $   19,124,000    $   19,319,000
Due after one year through five years..............     313,396,000       318,943,000
Due after five years through ten years.............     744,740,000       750,286,000
Due after ten years................................     287,990,000       282,199,000
Mortgage-backed securities.........................     569,613,000       584,007,000
                                                     --------------    --------------
          Total....................................  $1,934,863,000    $1,954,754,000
                                                     ==============    ==============
</TABLE>
    
 
   
     Actual maturities of bonds, notes and redeemable preferred stocks will
differ from those shown above due to prepayments and redemptions.
    
 
                                       51
<PAGE>   54
   
                     ANCHOR NATIONAL LIFE INSURANCE COMPANY
    
 
   
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
    
 
3. INVESTMENTS (CONTINUED)
   
     Gross unrealized gains and losses on bonds, notes and redeemable preferred
stocks available for sale by major category follow:
    
 
   
<TABLE>
<CAPTION>
                                                            GROSS          GROSS
                                                         UNREALIZED      UNREALIZED
                                                            GAINS          LOSSES
                                                         -----------    ------------
<S>                                                      <C>            <C>
AT SEPTEMBER 30, 1998:
  Securities of the United States Government...........  $ 3,862,000    $         --
  Mortgage-backed securities...........................   15,103,000        (709,000)
  Securities of public utilities.......................    2,420,000      (4,786,000)
  Corporate bonds and notes............................   31,795,000     (31,476,000)
  Redeemable preferred stocks..........................      763,000              --
  Other debt securities................................    5,235,000      (2,316,000)
                                                         -----------    ------------
          Total........................................  $59,178,000    $(39,287,000)
                                                         ===========    ============
AT SEPTEMBER 30, 1997:
  Securities of the United States Government...........  $   498,000    $    (32,000)
  Mortgage-backed securities...........................   14,998,000      (1,820,000)
  Securities of public utilities.......................      141,000         (40,000)
  Corporate bonds and notes............................   28,691,000        (705,000)
  Redeemable preferred stocks..........................      556,000              --
  Other debt securities................................    1,569,000        (147,000)
                                                         -----------    ------------
          Total........................................  $46,453,000    $ (2,744,000)
                                                         ===========    ============
</TABLE>
    
 
   
     Gross unrealized gains on equity securities available for sale aggregated
$54,000 and $1,004,000 at September 30, 1998 and 1997, respectively. There were
no unrealized losses at September 30, 1998 and 1997.
    
 
   
     Gross realized investment gains and losses on sales of investments are as
follows:
    
 
   
<TABLE>
<CAPTION>
                                                  YEARS ENDED SEPTEMBER 30,
                                         -------------------------------------------
                                            1998            1997            1996
                                         -----------    ------------    ------------
<S>                                      <C>            <C>             <C>
BONDS, NOTES AND REDEEMABLE PREFERRED
  STOCKS:
  Realized gains.......................  $28,086,000    $ 22,179,000    $ 14,532,000
  Realized losses......................   (4,627,000)    (25,310,000)    (10,432,000)
 
COMMON STOCKS:
  Realized gains.......................      337,000       4,002,000         511,000
  Realized losses......................           --        (312,000)     (3,151,000)
 
OTHER INVESTMENTS:
  Realized gains.......................    8,824,000       2,450,000       1,135,000
IMPAIRMENT WRITEDOWNS..................  (13,138,000)    (20,403,000)    (15,950,000)
                                         -----------    ------------    ------------
          Total net realized investment
            gains and losses...........  $19,482,000    $(17,394,000)   $(13,355,000)
                                         ===========    ============    ============
</TABLE>
    
 
                                       52
<PAGE>   55
   
                     ANCHOR NATIONAL LIFE INSURANCE COMPANY
    
 
   
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
    
 
3. INVESTMENTS (CONTINUED)
   
     The sources and related amounts of investment income are as follows:
    
 
   
<TABLE>
<CAPTION>
                                                 YEARS ENDED SEPTEMBER 30,
                                        --------------------------------------------
                                            1998            1997            1996
                                        ------------    ------------    ------------
<S>                                     <C>             <C>             <C>
Short-term investments................  $ 12,524,000    $ 11,780,000    $ 10,647,000
Bonds, notes and redeemable preferred
  stocks..............................   156,140,000     163,038,000     140,387,000
Mortgage loans........................    29,996,000      17,632,000       8,701,000
Common stocks.........................        34,000          16,000           8,000
Real estate...........................      (467,000)       (296,000)       (196,000)
Cost-method partnerships..............    24,311,000       6,725,000       4,073,000
Other invested assets.................      (572,000)     11,864,000       1,011,000
                                        ------------    ------------    ------------
          Total investment income.....  $221,966,000    $210,759,000    $164,631,000
                                        ============    ============    ============
</TABLE>
    
 
   
     Expenses incurred to manage the investment portfolio amounted to $1,910,000
for the year ended September 30, 1998, $2,050,000 for the year ended September
30, 1997, and $1,737,000 for the year ended September 30, 1996, and are included
in General and Administrative Expenses in the income statement.
    
 
   
     At September 30, 1998, no investment exceeded 10% of the Company's
consolidated shareholder's equity.
    
 
   
     At September 30, 1998, mortgage loans were collateralized by properties
located in 29 states, with loans totaling approximately 21% of the aggregate
carrying value of the portfolio secured by properties located in California and
approximately 14% by properties located in New York. No more than 8% of the
portfolio was secured by properties in any other single state.
    
 
   
     At September 30, 1998, bonds, notes and redeemable preferred stocks
included $167,564,000 of bonds and notes not rated investment grade. The Company
had no material concentrations of non-investment-grade assets at September 30,
1998.
    
 
   
     At September 30, 1998, the carrying value of investments in default as to
the payment of principal or interest was $917,000, all of which were mortgage
loans. Such nonperforming investments had an estimated fair value equal to their
carrying value.
    
 
   
     As a component of its asset and liability management strategy, the Company
utilizes Swap Agreements to match assets more closely to liabilities. Swap
Agreements are agreements to exchange with a counterparty interest rate payments
of differing character (for example, variable-rate payments exchanged for
fixed-rate payments) based on an underlying principal balance (notional
principal) to hedge against interest rate changes. The Company typically
utilizes Swap Agreements to create a hedge that effectively converts
floating-rate assets and liabilities to fixed-rate instruments. At September 30,
1998, the Company had one outstanding Swap Agreement with a notional principal
amount of $21,538,000, which matures in December 2024. The net interest paid
amounted to $278,000 and $125,000 for the years ended September 30, 1998 and
1997, respectively, and is included in Interest Expense on Guaranteed Investment
Contracts in the income statement.
    
 
   
     At September 30, 1998, $5,154,000 of bonds, at amortized cost, were on
deposit with regulatory authorities in accordance with statutory requirements.
    
 
                                       53
<PAGE>   56
   
                     ANCHOR NATIONAL LIFE INSURANCE COMPANY
    
 
   
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
    
 
   
 4. FAIR VALUE OF FINANCIAL INSTRUMENTS
    
 
   
     The following estimated fair value disclosures are limited to reasonable
estimates of the fair value of only the Company's financial instruments. The
disclosures do not address the value of the Company's recognized and
unrecognized nonfinancial assets (including its real estate investments and
other invested assets except for cost-method partnerships) and liabilities or
the value of anticipated future business. The Company does not plan to sell most
of its assets or settle most of its liabilities at these estimated fair values.
    
 
   
     The fair value of a financial instrument is the amount at which the
instrument could be exchanged in a current transaction between willing parties,
other than in a forced or liquidation sale. Selling expenses and potential taxes
are not included. The estimated fair value amounts were determined using
available market information, current pricing information and various valuation
methodologies. If quoted market prices were not readily available for a
financial instrument, management determined an estimated fair value.
Accordingly, the estimates may not be indicative of the amounts the financial
instruments could be exchanged for in a current or future market transaction.
    
 
   
     The following methods and assumptions were used to estimate the fair value
of each class of financial instruments for which it is practicable to estimate
that value:
    
 
   
     CASH AND SHORT-TERM INVESTMENTS: Carrying value is considered to be a
reasonable estimate of fair value.
    
 
   
     BONDS, NOTES AND REDEEMABLE PREFERRED STOCKS: Fair value is based
principally on independent pricing services, broker quotes and other independent
information.
    
 
   
     MORTGAGE LOANS: Fair values are primarily determined by discounting future
cash flows to the present at current market rates, using expected prepayment
rates.
    
 
   
     COMMON STOCKS: Fair value is based principally on independent pricing
services, broker quotes and other independent information.
    
 
   
     COST-METHOD PARTNERSHIPS: Fair value of limited partnerships accounted for
by using the cost method is based upon the fair value of the net assets of the
partnerships as determined by the general partners.
    
 
   
     VARIABLE ANNUITY ASSETS HELD IN SEPARATE ACCOUNTS: Variable annuity assets
are carried at the market value of the underlying securities.
    
 
   
     RESERVES FOR FIXED ANNUITY CONTRACTS: Deferred annuity contracts and single
premium life contracts are assigned a fair value equal to current net surrender
value. Annuitized contracts are valued based on the present value of future cash
flows at current pricing rates.
    
 
   
     RESERVES FOR GUARANTEED INVESTMENT CONTRACTS: Fair value is based on the
present value of future cash flows at current pricing rates and is net of the
estimated fair value of a hedging Swap Agreement, determined from independent
broker quotes.
    
 
   
     PAYABLE TO BROKERS FOR PURCHASES OF SECURITIES: Such obligations represent
net transactions of a short-term nature for which the carrying value is
considered a reasonable estimate of fair value.
    
 
   
     VARIABLE ANNUITY LIABILITIES RELATED TO SEPARATE ACCOUNTS: Fair values of
contracts in the accumulation phase are based on net surrender values. Fair
values of contracts in the payout phase are based on the present value of future
cash flows at assumed investment rates.
    
 
   
     SUBORDINATED NOTES PAYABLE TO PARENT: Fair value is estimated based on the
quoted market prices for similar issues.
    
 
                                       54
<PAGE>   57
   
                     ANCHOR NATIONAL LIFE INSURANCE COMPANY
    
 
   
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
    
 
   
 4. FAIR VALUE OF FINANCIAL INSTRUMENTS (CONTINUED)
    
   
     The estimated fair values of the Company's financial instruments at
September 30, 1998 and 1997, compared with their respective carrying values, are
as follows:
    
 
   
<TABLE>
<CAPTION>
                                                              CARRYING             FAIR
                                                                VALUE              VALUE
                                                           ---------------    ---------------
<S>                                                        <C>                <C>
1998:
ASSETS:
  Cash and short-term investments........................  $   333,735,000    $   333,735,000
  Bonds, notes and redeemable preferred stocks...........    1,954,754,000      1,954,754,000
  Mortgage loans.........................................      391,448,000        415,981,000
  Common stocks..........................................          169,000            169,000
  Cost-method partnerships...............................        4,403,000         12,744,000
  Variable annuity assets held in separate accounts......   11,133,569,000     11,133,569,000
LIABILITIES:
  Reserves for fixed annuity contracts...................    2,189,272,000      2,116,874,000
  Reserves for guaranteed investment contracts...........      282,267,000        282,267,000
  Payable to brokers for purchases of securities.........       27,053,000         27,053,000
  Variable annuity liabilities related to separate
     accounts............................................   11,133,569,000     10,696,607,000
  Subordinated notes payable to Parent...................       39,182,000         40,550,000
                                                           ===============    ===============
1997:
ASSETS:
  Cash and short-term investments........................  $   113,580,000    $   113,580,000
  Bonds, notes and redeemable preferred stocks...........    1,986,194,000      1,986,194,000
  Mortgage loans.........................................      339,530,000        354,495,000
  Common stocks..........................................        1,275,000          1,275,000
  Cost-method partnerships...............................       46,880,000         84,186,000
  Variable annuity assets held in separate accounts......    9,343,200,000      9,343,200,000
LIABILITIES:
  Reserves for fixed annuity contracts...................    2,098,803,000      2,026,258,000
  Reserves for guaranteed investment contracts...........      295,175,000        295,175,000
  Payable to brokers for purchases of securities.........          263,000            263,000
  Variable annuity liabilities related to separate
     accounts............................................    9,343,200,000      9,077,200,000
  Subordinated notes payable to Parent...................       36,240,000         37,393,000
                                                           ===============    ===============
</TABLE>
    
 
   
 5. SUBORDINATED NOTES PAYABLE TO PARENT
    
 
   
     Subordinated notes and accrued interest payable to Parent totaled
$39,182,000 at interest rates ranging from 8.5% to 9% at September 30, 1998, and
require principal payments of $23,060,000 in 1999, $5,400,000 in 2000 and
$10,000,000 in 2001.
    
 
   
 6. REINSURANCE
    
 
   
     On August 11, 1998, the Company entered into a modified coinsurance
transaction, approved by the Arizona Department of Insurance, which involves the
ceding of approximately $5,000,000,000 of variable annuities to ANLIC Insurance
Company (Cayman), a Cayman Islands stock life insurance company, effective
December 31, 1997. As a part of this transaction, the Company received cash
amounting to approximately $188,700,000, and recorded a corresponding reduction
of DAC related to the coinsured annuities.
    
                                       55
<PAGE>   58
   
                     ANCHOR NATIONAL LIFE INSURANCE COMPANY
    
 
   
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
    
 
   
 6. REINSURANCE (CONTINUED)
    
   
     As payments are made to the reinsurer, the reduction of DAC is relieved.
The net reduction in DAC at September 30, 1998 was $166,631,000. Certain
expenses related to this transaction are being charged directly to DAC
amortization in the income statement. The net effect of this transaction in the
income statement is not material.
    
 
   
 7. CONTINGENT LIABILITIES
    
 
   
     The Company has entered into three agreements in which it has provided
liquidity support for certain short-term securities of two municipalities by
agreeing to purchase such securities in the event there is no other buyer in the
short-term marketplace. In return the Company receives a fee. The maximum
liability under these guarantees is $242,600,000. Management does not anticipate
any material future losses with respect to these liquidity support facilities.
An additional $51,000,000 has been committed to investments in the process of
being funded or to be available in the case of certain natural disasters, for
which the Company receives a fee.
    
 
   
     The Company is involved in various kinds of litigation common to its
businesses. These cases are in various stages of development and, based on
reports of counsel, management believes that provisions made for potential
losses relating to such litigation are adequate and any further liabilities and
costs will not have a material adverse impact upon the Company's financial
position or results of operations.
    
 
                                       56
<PAGE>   59
   
                     ANCHOR NATIONAL LIFE INSURANCE COMPANY
    
 
   
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
    
 
   
 8. SHAREHOLDER'S EQUITY
    
 
   
     The Company is authorized to issue 4,000 shares of its $1,000 par value
Common Stock. At September 30, 1998 and 1997, 3,511 shares were outstanding.
    
 
   
     Changes in shareholder's equity are as follows:
    
 
   
<TABLE>
<CAPTION>
                                                 YEARS ENDED SEPTEMBER 30,
                                        --------------------------------------------
                                            1998            1997            1996
                                        ------------    ------------    ------------
<S>                                     <C>             <C>             <C>
ADDITIONAL PAID-IN CAPITAL:
  Beginning balances..................  $308,674,000    $280,263,000    $252,876,000
  Capital contributions received......            --      28,411,000      27,387,000
                                        ------------    ------------    ------------
 
     Ending balances..................  $308,674,000    $308,674,000    $280,263,000
                                        ============    ============    ============
RETAINED EARNINGS:
  Beginning balances..................  $244,628,000    $207,002,000    $191,346,000
  Net income..........................   138,641,000      63,126,000      45,056,000
  Dividend paid.......................   (51,200,000)    (25,500,000)    (29,400,000)
                                        ------------    ------------    ------------
     Ending balances..................  $332,069,000    $244,628,000    $207,002,000
                                        ============    ============    ============
NET UNREALIZED GAINS (LOSSES) ON
  DEBT AND EQUITY SECURITIES
  AVAILABLE FOR SALE:
     Beginning balances...............  $ 18,405,000    $ (5,521,000)   $ (5,673,000)
     Change in net unrealized gains
       (losses) on debt securities
       available for sale.............   (23,818,000)     57,463,000      (2,904,000)
     Change in net unrealized gains
       (losses) on equity securities
       available for sale.............      (950,000)        (55,000)      3,538,000
     Change in adjustment to deferred
       acquisition costs..............     9,400,000     (20,600,000)       (400,000)
     Tax effects of net changes.......     5,378,000     (12,882,000)        (82,000)
                                        ------------    ------------    ------------
       Ending balances................  $  8,415,000    $ 18,405,000    $ (5,521,000)
                                        ============    ============    ============
</TABLE>
    
 
   
     Dividends that the Company may pay to its shareholder in any year without
prior approval of the Arizona Department of Insurance are limited by statute.
The maximum amount of dividends which can be paid to shareholders of insurance
companies domiciled in the state of Arizona without obtaining the prior approval
of the Insurance Commissioner is limited to the lesser of either 10% of the
preceding year's statutory surplus or the preceding year's statutory net gain
from operations. Dividends in the amounts of $51,200,000, $25,500,000 and
$29,400,000 were paid on June 4, 1998, April 1, 1997 and March 18, 1996,
respectively.
    
 
   
     Under statutory accounting principles utilized in filings with insurance
regulatory authorities, the Company's net income for the nine months ended
September 30, 1998 was $64,125,000. The statutory net income for the year ended
December 31, 1997 was $74,407,000, and the statutory net income for the year
ended December 31, 1996 was $27,928,000. The Company's statutory capital and
surplus was $537,542,000 at September 30, 1998, $567,979,000 at December 31,
1997 and $311,176,000 at December 31, 1996.
    
 
                                       57
<PAGE>   60
   
                     ANCHOR NATIONAL LIFE INSURANCE COMPANY
    
 
   
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
    
 
   
 9. INCOME TAXES
    
 
   
     The components of the provisions for federal income taxes on pretax income
consist of the following:
    
 
   
<TABLE>
<CAPTION>
                                         NET REALIZED
                                          INVESTMENT
                                        GAINS (LOSSES)     OPERATIONS        TOTAL
                                        --------------    ------------    ------------
<S>                                     <C>               <C>             <C>
1998:
  Currently payable...................   $  4,221,000     $ 32,743,000    $ 36,964,000
  Deferred............................       (550,000)      34,637,000      34,087,000
                                         ------------     ------------    ------------
          Total income tax expense....   $  3,671,000     $ 67,380,000    $ 71,051,000
                                         ============     ============    ============
1997:
  Currently payable...................   $ (3,635,000)    $ 50,828,000    $ 47,193,000
  Deferred............................     (2,258,000)     (13,766,000)    (16,024,000)
                                         ------------     ------------    ------------
          Total income tax expense....   $ (5,893,000)    $ 37,062,000    $ 31,169,000
                                         ============     ============    ============
1996:
  Currently payable...................   $  5,754,000     $ 21,849,000    $ 27,603,000
  Deferred............................    (10,347,000)       6,996,000      (3,351,000)
                                         ------------     ------------    ------------
          Total income tax expense....   $ (4,593,000)    $ 28,845,000    $ 24,252,000
                                         ============     ============    ============
</TABLE>
    
 
   
     Income taxes computed at the United States federal income tax rate of 35%
and income taxes provided differ as follows:
    
 
   
<TABLE>
<CAPTION>
                                                   YEARS ENDED SEPTEMBER 30,
                                           -----------------------------------------
                                              1998           1997           1996
                                           -----------    -----------    -----------
<S>                                        <C>            <C>            <C>
Amount computed at statutory rate........  $73,392,000    $33,003,000    $24,258,000
Increases (decreases) resulting from:
  Amortization of differences between
     book and tax bases of net assets
     acquired............................      460,000        666,000        464,000
  State income taxes, net of federal tax
     benefit.............................    5,530,000      1,950,000      2,070,000
  Dividends-received deduction...........   (7,254,000)    (4,270,000)    (2,357,000)
  Tax credits............................   (1,296,000)      (318,000)      (257,000)
  Other, net.............................      219,000        138,000         74,000
                                           -----------    -----------    -----------
          Total income tax expense.......  $71,051,000    $31,169,000    $24,252,000
                                           ===========    ===========    ===========
</TABLE>
    
 
   
     For United States federal income tax purposes, certain amounts from life
insurance operations are accumulated in a memorandum policyholders' surplus
account and are taxed only when distributed to shareholders or when such account
exceeds prescribed limits. The accumulated policyholders' surplus was
$14,300,000 at September 30, 1998. The Company does not anticipate any
transactions which would cause any part of this surplus to be taxable.
    
 
                                       58
<PAGE>   61
   
                     ANCHOR NATIONAL LIFE INSURANCE COMPANY
    
 
   
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
    
 
 9. INCOME TAXES (CONTINUED)
   
     Deferred income taxes reflect the net tax effects of temporary differences
between the carrying amounts of assets and liabilities for financial reporting
purposes and the amounts used for income tax reporting purposes. The significant
components of the liability for Deferred Income Taxes are as follows:
    
 
   
<TABLE>
<CAPTION>
                                                              SEPTEMBER 30,
                                                      ------------------------------
                                                          1998             1997
                                                      -------------    -------------
<S>                                                   <C>              <C>
DEFERRED TAX LIABILITIES:
  Investments.......................................  $  17,643,000    $  13,160,000
  Deferred acquisition costs........................    223,392,000      154,949,000
  State income taxes................................      2,873,000        1,777,000
  Other liabilities.................................        144,000               --
  Net unrealized gains on debt and equity securities
     available for sale.............................      4,531,000        9,910,000
                                                      -------------    -------------
          Total deferred tax liabilities............    248,583,000      179,796,000
                                                      -------------    -------------
DEFERRED TAX ASSETS:
  Contractholder reserves...........................   (149,915,000)    (108,090,000)
  Guaranty fund assessments.........................     (2,910,000)      (2,707,000)
  Other assets......................................             --       (1,952,000)
                                                      -------------    -------------
          Total deferred tax assets.................   (152,825,000)    (112,749,000)
                                                      -------------    -------------
  Deferred income taxes.............................  $  95,758,000    $  67,047,000
                                                      =============    =============
</TABLE>
    
 
   
10. RELATED-PARTY MATTERS
    
 
   
     The Company pays commissions to five affiliated companies, SunAmerica
Securities, Inc., Advantage Capital Corp., Financial Services Corp., Sentra
Securities Corp. and Spelman & Co. Inc. Commissions paid to these broker-dealers
totaled $32,946,000 in 1998, $25,492,000 in 1997, and $16,906,000 in 1996. These
broker-dealers, when combined with the Company's wholly owned broker-dealer,
represent a significant portion of the Company's business, amounting to
approximately 33.6%, 36.1%, and 38.3% of premiums in 1998, 1997, and 1996,
respectively. The Company also sells its products through unaffiliated
broker-dealers, the largest two of which represented approximately 17.3% and
8.4% of premiums in 1998, 19.2% and 10.1% in 1997, and 19.7% and 10.2% in 1996,
respectively.
    
 
   
     The Company purchases administrative, investment management, accounting,
marketing and data processing services from SunAmerica Financial, whose purpose
is to provide services to the Company and its affiliates. Amounts paid for such
services totaled $84,975,000 for the year ended September 30, 1998, $86,116,000
for the year ended September 30, 1997 and $65,351,000 for the year ended
September 30, 1996. The marketing component of such costs during these periods
amounted to $39,482,000, $31,968,000 and $17,442,000, respectively, and are
deferred and amortized as part of Deferred Acquisition Costs. The other
components of such costs are included in General and Administrative Expenses in
the income statement.
    
 
   
     The Parent made a capital contribution of $28,411,000 in December 1996 to
the Company, through the Company's direct parent, in exchange for the
termination of its guaranty with respect to certain real estate owned in
Arizona. Accordingly, the Company reduced the carrying value of this real estate
to estimated fair value to reflect the termination of the guaranty.
    
 
   
     During the year ended September 30, 1998, the Company sold various invested
assets to the Parent for cash equal to their current market value of
$64,431,000. The Company recorded a net gain aggregating $16,388,000 on such
transactions.
    
 
                                       59
<PAGE>   62
   
                     ANCHOR NATIONAL LIFE INSURANCE COMPANY
    
 
   
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
    
 
   
10. RELATED-PARTY MATTERS (CONTINUED)
    
   
     During the year ended September 30, 1998, the Company purchased certain
invested assets from the Parent, SunAmerica Life Insurance Company and
CalAmerica Life Insurance Company for cash equal to their current market value,
which aggregated $20,666,000, $10,468,000 and $61,000, respectively.
    
 
   
     During the year ended September 30, 1997, the Company sold various invested
assets to SunAmerica Life Insurance Company and to CalAmerica Life Insurance
Company for cash equal to their current market value of $15,776,000 and $15,000,
respectively. The Company recorded a net gain aggregating $276,000 on such
transactions.
    
 
   
     During the year ended September 30, 1997, the Company purchased certain
invested assets from SunAmerica Life Insurance Company and CalAmerica Life
Insurance Company for cash equal to their current market value of $8,717,000 and
$284,000, respectively.
    
 
   
     During the year ended September 30, 1996, the Company sold various invested
assets to the Parent and to SunAmerica Life Insurance Company for cash equal to
their current market value of $274,000 and $47,321,000, respectively. The
Company recorded a net loss aggregating $3,000 on such transactions.
    
 
   
     During the year ended September 30, 1996, the Company purchased certain
invested assets from SunAmerica Life Insurance Company for cash equal to their
current market value, which aggregated $28,379,000.
    
 
   
11. BUSINESS SEGMENTS
    
 
   
     Summarized data for the Company's business segments follow:
    
 
   
<TABLE>
<CAPTION>
                                                  TOTAL
                                               DEPRECIATION
                                                   AND
                                  TOTAL        AMORTIZATION       PRETAX            TOTAL
                                 REVENUES        EXPENSE          INCOME           ASSETS
                               ------------    ------------    ------------    ---------------
<S>                            <C>             <C>             <C>             <C>
1998:
  Annuity operations.........  $443,407,000    $60,731,000     $178,120,000    $14,366,018,000
  Broker-dealer operations...    47,363,000      1,770,000       22,401,000         55,870,000
  Asset management
     operations..............    41,040,000     14,780,000        9,171,000        104,476,000
                               ------------    -----------     ------------    ---------------
          Total..............  $531,810,000    $77,281,000     $209,692,000    $14,526,364,000
                               ============    ===========     ============    ===============
1997:
  Annuity operations.........  $332,845,000    $55,675,000     $ 74,792,000    $12,438,021,000
  Broker-dealer operations...    38,005,000        689,000       16,705,000         51,400,000
  Asset management
     operations..............    35,661,000     16,357,000        2,798,000         81,518,000
                               ------------    -----------     ------------    ---------------
          Total..............  $406,511,000    $72,721,000     $ 94,295,000    $12,570,939,000
                               ============    ===========     ============    ===============
1996:
  Annuity operations.........  $256,681,000    $43,974,000     $ 53,827,000    $ 9,092,770,000
  Broker-dealer operations...    31,053,000        449,000       13,033,000         37,355,000
  Asset management
     operations..............    33,047,000     18,295,000        2,448,000         74,410,000
                               ------------    -----------     ------------    ---------------
          Total..............  $320,781,000    $62,718,000     $ 69,308,000    $ 9,204,535,000
                               ============    ===========     ============    ===============
</TABLE>
    
 
                                       60
<PAGE>   63
   
                     ANCHOR NATIONAL LIFE INSURANCE COMPANY
    
 
   
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
    
 
   
12. SUBSEQUENT EVENTS
    
 
   
     On July 15, 1998, the Company entered into a definitive agreement to
acquire the individual life business and the individual and group annuity
business of MBL Life Assurance Corporation ("MBL Life") via a 100% coinsurance
transaction for approximately $130,000,000 in cash. The transaction will include
approximately $2,000,000,000 of universal life reserves and $3,000,000,000 of
fixed annuity reserves. The Company plans to reinsure a large portion of the
mortality risk associated with the acquired block of universal life business.
Completion of this acquisition is expected by the end of calendar year 1998 and
is subject to customary conditions and required approvals. Included in this
block of business is approximately $250,000,000 of individual life business and
$500,000,000 of group annuity business whose contract owners are residents of
New York State ("the New York Business"). Approximately six months subsequent to
completion of the transaction, the New York Business will be acquired by the
Company's New York affiliate, First SunAmerica Life Insurance Company, and the
remainder of the business will be acquired by the Company via assumption
reinsurance agreements between MBL Life and the respective companies, which will
supersede the coinsurance agreement. The $130,000,000 purchase price will be
allocated between the Company and its affiliate based on their respective
assumed life insurance reserves.
    
 
   
     On August 20, 1998, the Parent announced that it has entered into a
definite agreement to merge with and into American International Group, Inc.
("AIG"). Under the terms of the agreement, each share of the Parent's common
stock (including Nontransferable Class B) will be exchanged for 0.855 shares of
AIG's common stock. The transaction will be treated as a pooling of interests
for accounting purposes and will be a tax-free reorganization. The transaction
was approved by both the Parent's and AIG's shareholders on November 18, 1998,
and, subject to various regulatory approvals, will be completed in late 1998 or
early 1999.
    
 
                                       61
<PAGE>   64
 
                                   APPENDIX A
 
                        MARKET VALUE ADJUSTMENT ("MVA")
 
The MVA reflects the impact that changing interest rates have on the value of
money invested at a fixed interest rate. The longer the period of time remaining
in the term you initially agreed to leave your money in the fixed account
option, the greater the impact of changing interest rates. The impact of the MVA
can be either positive or negative, and is computed by multiplying the amount
withdrawn, transferred or annuitized by the following factor:
 
                                            (N/12) 
                          [(1+I/(1+J+0.005)]      - 1
 
                  The MVA formula may differ in certain states
  where:
 
        I is the interest rate you are earning on the money invested in the
        fixed account option;
 
        J is the interest rate then currently available for the period of time
        equal to the number of years remaining in the term you initially agreed
        to leave your money in the fixed account option (fractional years are
        rounded up to the next full year); and
 
        N is the number of full months remaining in the term you initially
        agreed to leave your money in the fixed account option.
 
EXAMPLES OF THE MVA
 
     The examples below assume the following:
 
   
     (1) You made an initial Purchase Payment of $10,000 and allocated it to the
         10-year fixed account option at a rate of 5%;
    
 
     (2) You make a partial withdrawal of $4,000 when 2 1/2 years (30 months)
         remain in the 10-year term you initially agreed to leave your money in
         the fixed account option (N=30);
 
   
     (3) The accumulated value attributable to the Purchase Payment on the date
         of withdrawal is $14,168.20; and
    
 
     (4) You have not made any other transfers, additional Purchase Payments, or
         withdrawals.
 
No withdrawal charges are reflected because your Purchase Payment has been in
the contract for seven full years. If a withdrawal charge applies, it is
deducted before the MVA. The MVA is assessed on the amount withdrawn less any
withdrawal charges.
 
POSITIVE ADJUSTMENT
 
   
Assume that on the date of withdrawal, the interest rate in effect for a new
Purchase Payments in the 3-year fixed account option is 4%.
    
 
                                           (N/12)
     The MVA factor is = [(1+I/(1+J+0.005)]      - 1
   
                                             (30/12)
                       = [(1.05)/(1.04+.005)]       - 1
    
   
                                   (2.5)
                       = (1.004785)     - 1
    
   
                       = 1.012005 - 1
    
   
                       = + 0.012005
    
 
The requested withdrawal amount is multiplied by the MVA factor to determine the
MVA:
   
                         $4,000 x (+0.012005) = +$48.02
    
 
   
$48.02 represents the MVA that would be added to your withdrawal.
    
 
NEGATIVE ADJUSTMENT
 
   
Assume that on the date of withdrawal, the interest rate in effect for new
Purchase Payments in the 3-year fixed investment option (2 1/2 years rounded up
to the next full year) is 6%.
    
 
                                            (N/12)
     The MVA factor is = [(1+I)/(1+J+0.005)]      - 1
   
                                           (30/12)
                     = [(1.05)/(1.06+.005)]       - 1
    
   
                                 (2.5)
                     = (0.985915)     - 1
    
   
                     = 0.965160 - 1
    
   
                     = - 0.034840
    
 
The requested withdrawal amount is multiplied by the MVA factor to determine the
MVA:
   
                        $4,000 X (- 0.034840) = -$139.36
    
 
   
$139.36 represents the MVA that will be deducted from the money remaining in the
10-year fixed account option.
    
 
                                       A-1
<PAGE>   65
 
EXAMPLE OF FULL WITHDRAWAL WITH MVA AND WITHDRAWAL CHARGE
 
   
     Assume the same facts as in Part 2, above, except that under assumption (2)
a complete withdrawal is requested with 4 1/2 years (54 months) remaining in the
guarantee period (i.e., N = 54). The guarantee amount on the date of withdrawal
is $12,908.13. As was the case with the Examples in Part 1, above, the earnings
may be withdrawn free of withdrawal charge, leaving the initial Purchase Payment
of $10,000 subject to the Charge. The applicable withdrawal charge is 3% or
$300.
    
 
     EXAMPLE OF A POSITIVE MVA:
 
   
          Assume that on the date of withdrawal the current interest rate for a
     new guarantee period of 5 years is 4%:
    
 
                                                   N/12
          The MVA factor = [(1 + I)/(1 + J + .005)]     -1
   
                                                 (54/12) 
                         = [(1.05)/(1.04 + .005)]        -1
    
   
                                   4.5
                       = (1.004785)   -1
    
   
                       = 1.021712 -1
    
   
                       = +0.021712
    
 
   
          The MVA is:
    
 
   
           ($12,908.13 - $300 - $30) X (+0.021712) = +$273.10
    
 
   
          And the net amount available upon surrender is:
    
 
   
           $12,908.13 - $300 + $273.10 - $30 = $12,851.23
    
 
     EXAMPLE OF A NEGATIVE MVA:
 
   
          Assume that on the date of withdrawal the current interest rate for a
     new guarantee period of 5 years is 6%:
    
 
                                                   N/12
          The MVA factor = [(1 + I)/(1 + J + .005)]    -1
   
                                               (54/12)
                       = [(1.05)/(1.06 + .005)]        -1
    
   
                                   4.5
                       = (0.985915)    -1
    
   
                       = 0.938164 -1
    
   
                       = -0.061836
    
 
   
          The withdrawal charge of $300 and the contract maintenance fee of $30
     are applied first; the MVA factor is applied against the remaining
     guarantee amount:
    
 
   
          MVA = ($12,908.13 - $300 - $30) X (-0.061836) = -$777.79
    
 
   
          The net amount available upon withdrawal is the guarantee amount
     reduced by the withdrawal charge, the MVA and the contract administration
     charge:
    
 
   
          $12,908.13 - $300 - $777.79 - $30 = $11,800.35
    
 
                                       A-2
<PAGE>   66
 
                                   APPENDIX B
                       WITHDRAWALS AND WITHDRAWAL CHARGES
 
PART 1 -- SEPARATE ACCOUNT (THE MVA DOES NOT APPLY TO THE SEPARATE ACCOUNT)
 
     These examples assume the following:
 
          (1) The initial Purchase Payment was $10,000, allocated solely to one
     Variable Portfolio;
 
          (2) The date of full surrender or partial withdrawal occurs during the
     3rd contribution year;
 
          (3) The contract value at the time of surrender or withdrawal is
     $12,000; and
 
          (4) No other Purchase Payments or previous partial withdrawals have
     been made.
 
     EXAMPLE A -- FULL SURRENDER:
 
          (1) Earnings in the Variable Portfolio ($12,000 - $10,000 = $2,000)
     are not subject to the withdrawal charge.
 
          (2) The balance of the full surrender ($12,000 - $2,000 = $10,000) is
     subject to a 5% withdrawal charge applicable during the 3rd contribution
     year.
 
          (3) The amount of the withdrawal charge is .05 X $10,000 = $500.
 
          (4) The contract administration charge is deducted from the full
     surrender amount. The amount of the full surrender is
     $12,000 - $500 - $30 = $11,470.
 
     EXAMPLE B -- PARTIAL WITHDRAWAL (IN THE AMOUNT OF $3,000):
 
          (1) For the same reasons as given in Steps 1 and 2 of Example A,
     above, $2,000 can be withdrawn free of the withdrawal charge.
 
          (2) Although 10% of the Purchase Payment is available without
     imposition of a withdrawal charge (.10 X $10,000 = $1,000), this free
     withdrawal amount is, like the withdrawal charge, applied first to
     earnings. Since the earnings exceed the free withdrawal amount, only the
     earnings can be withdrawn free of the scheduled withdrawal charge.
 
          (3) The balance of the requested partial withdrawal
     ($3,000 - $2,000 = $1,000) is subject to the withdrawal charge applicable
     during the 3rd contribution year (5%).
 
          (4) The amount of the withdrawal charge is equal to the amount
     required to complete the partial withdrawal ($3,000 - $2,000 = $1,000)
     divided by (1 - .05) = 0.95, less the amount required to complete the
     partial withdrawal.
 
          withdrawal charge = ($1,000/0.95) - $1,000
                        = $52.63
 
     In this example, in order for the owner to receive the amount requested
($3,000), a gross withdrawal of $3,052.63 must be processed with $52.63
representing the withdrawal charge calculated above.
 
     Examples C and D assume the following:
 
          (1) The initial Purchase Payment was $20,000, allocated solely to one
     Variable Portfolio;
 
          (2) The full surrender or partial withdrawal occurs during the 3rd
     contribution year;
 
                                       B-1
<PAGE>   67
 
          (3) The owner's contract value at the time of surrender or withdrawal
     is $21,500; and
 
          (4) No other Purchase Payments or partial withdrawals have been made.
 
     EXAMPLE C -- PARTIAL WITHDRAWAL (IN THE MAXIMUM AMOUNT AVAILABLE WITHOUT
                  WITHDRAWAL CHARGE):
 
          (1) Earnings in the Variable Portfolio ($21,500 - $20,000 = $1,500)
     are not subject to the withdrawal charge.
 
          (2) An additional free withdrawal of 10% of the Purchase Payments less
     earnings (.10 X $20,000 - $1,500 = $500) is also available free of the
     withdrawal charge, so that
 
          (3) The maximum partial withdrawal without withdrawal charge is the
     sum of the earnings and the additional free withdrawal
     ($1,500 + $500 = $2,000).
 
     EXAMPLE D -- FULL SURRENDER IMMEDIATELY FOLLOWING THE PARTIAL WITHDRAWAL IN
                 EXAMPLE C:
 
        (1) The owner's contract value after the partial withdrawal in Example C
     is $21,500 - $2,000 = $19,500.
 
          (2) The Purchase Payment amount for calculating the withdrawal charge
     is the original $20,000 (additional free withdrawal amounts do not reduce
     the Purchase Payment amount for purposes of calculating the withdrawal
     charge).
 
          (3) The amount of the withdrawal charge is .05 X $20,000 = $1,000.
 
          (4) The contract administration charge is deducted from the full
     surrender amount. The amount of the full surrender is
     $19,500 - $1,000 - $30 = $18,470.
 
                                       B-2
<PAGE>   68
 
                           APPENDIX C - PREMIUM TAXES
 
     Premium taxes vary according to the state and are subject to change without
notice. In many states, there is no tax at all. Listed below are the current
premium tax rates in those states that assess a premium tax. For current
information, you should consult your tax adviser.
 
<TABLE>
<CAPTION>
                                              QUALIFIED    NON-QUALIFIED
                   STATE                      CONTRACT       CONTRACT
<S>                                           <C>          <C>
========================================================================
California                                        .50%          2.35%
- ------------------------------------------------------------------------
District of Columbia                             2.25%          2.25%
- ------------------------------------------------------------------------
Kentucky                                            2%             2%
- ------------------------------------------------------------------------
Maine                                               0%             2%
- ------------------------------------------------------------------------
Nevada                                              0%           3.5%
- ------------------------------------------------------------------------
South Dakota                                        0%          1.25%
- ------------------------------------------------------------------------
West Virginia                                       1%             1%
- ------------------------------------------------------------------------
Wyoming                                             0%             1%
- ------------------------------------------------------------------------
- ------------------------------------------------------------------------
</TABLE>
 
                                       C-1
<PAGE>   69
 
<TABLE>
<S>                              <C>                                  <C>
==============================
- ------------------------------                                           Stamp
</TABLE>
 
                       ANCHOR NATIONAL LIFE INSURANCE COMPANY
                       ANNUITY SERVICE CENTER
                       P.O. BOX 54299
                       LOS ANGELES, CA 90054-0299
<PAGE>   70
 
Please forward a copy, without charge, of the Statement of Additional
Information concerning the Vista Capital Advantage issued by Anchor National
Life Insurance Company to:
 
              (Please print or type and fill in all information.)
 
- ------------------------------------------------------------------------------
  Name
 
- ------------------------------------------------------------------------------
  Address
 
- ------------------------------------------------------------------------------
  City/State/Zip
 
- ------------------------------------------------------------------------------
 
Date: ________________________   Signed:
<PAGE>   71

                             PART II
                             -------

                     Information Not Required in Prospectus

Item 13. Other Expenses of Issuance and Distribution.
               -------------------------------------------

               Not Applicable

Item 14. Indemnification of Directors and Officers.
               ------------------------------------------

               Not Applicable

Item 15. Recent Sales of Unregistered Securities.
               ----------------------------------------

               Not Applicable

Item 16. Exhibits and Financial Statement Schedules.
               -------------------------------------------

   
               Exhibit No.   Description
               (1)           Underwriting Agreement***
               (2)           Plan of Acquisition, Reorganization,
                             Arrangement, Liquidation or Succession**
               (3)           (a)    Articles of Incorporation***
                             (b)    By-Laws***
               (4)           (a)    Vista Capital Advantage
                                    Fixed and Variable Contract***
                             (b)    Application for Contract***
               (5)           Opinion of Counsel re: Legality***
               (6)           Opinion re Discount on Capital Shares**
               (7)           Opinion re Liquidation Preference**
               (8)           Opinion re Tax Matters**
               (9)           Voting Trust Agreement**
               (10)          Material Contracts**
               (11)          Statement re Computation of Per Share
                               Earnings**
               (12)          Statement re Computation of Ratios**
               (14)          Material Foreign Patents**
               (15)          Letter re Unaudited Financial Information**
               (16)          Letter re Change in Certifying Accountant**
               (21)          Subsidiaries of Registrant***
               (23)          (a)    Consent of Independent Accountants*
                             (b)    Consent of Attorney***
               (24)          Powers of Attorney***
               (25)          Statement of Eligibility of Trustee**
               (26)          Invitation for Competitive Bids**
               (27)          Financial Data Schedule*
               (28)          Information Reports Furnished to State
                               Insurance Regulatory Authority**
               (29)          Other Exhibits**
    

                                    *       Herewith
                                    **      Not Applicable
                                    ***     Previously Filed
                                    ****    To be filed by Amendment
<PAGE>   72

Item 17. Undertakings.
         ------------

               The undersigned registrant, Anchor National Life Insurance
               Company, hereby undertakes:

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

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

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

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

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

        (3)    To remove from registration by means of a post-effective
               amendment any of the securities being registered which remain
               unsold at the termination of the offering.
<PAGE>   73
                                   SIGNATURES

   
        Pursuant to the Securities Act of 1933, the Registrant has duly caused 
this Post-Effective Amendment to the Registration Statement to be signed on its
behalf by the undersigned, thereunto duly authorized, in the City of Los
Angeles, and the State of California, on this 23rd day of December, 1998.
    

                             By: ANCHOR NATIONAL LIFE INSURANCE COMPANY



                             By:   /s/ JAY S. WINTROB
                                -----------------------------------------
                                    Jay S. Wintrob
                                    Executive Vice President


        Pursuant to the Securities Act of 1933, this Post-Effective Amendment to
the Registration Statement has been signed by the following persons in the
capacities and on the dates indicated.

   
<TABLE>
<CAPTION>

        SIGNATURE            TITLE                        DATE
        ---------            -----                        ----
<S>                       <C>                             <C>
ELI BROAD*                President, Chief Executive 
- ---------------------     Officer, & Chairman of 
Eli Broad                        Board
                          (Principal Executive Officer)


SCOTT L. ROBINSON*        Senior Vice President &
- ---------------------            Director
Scott L. Robinson         (Principal Financial Officer)


N. SCOTT GILLIS*          Senior Vice President &
- ---------------------            Controller
N. Scott Gillis           (Principal Accounting Officer)


JAMES R. BELARDI*         Director
- ---------------------
James R. Belardi


JANA W. GREER*            Director
- ---------------------
Jana W. Greer


JAMES W. ROWAN*           Director
- ---------------------
James W. Rowan


JAY S. WINTROB*           Director
- ---------------------
Jay S. Wintrob


/s/ SUSAN L. HARRIS       Director       December 23, 1998
- ---------------------
Susan L. Harris


PETER McMILLAN*           Director
- ----------------------
Peter McMillan


*By: /s/ SUSAN L. HARRIS  Attorney-in-Fact
        --------------------
        Susan L. Harris

        Date:  December 23, 1998
</TABLE>
    
<PAGE>   74
                                  EXHIBIT INDEX

   

Number                Description
- ------                -----------
 23(a)                Consent of Independent Accountants
(27)                  Financial Data Schedule

    

<PAGE>   1

                                                                   EXHIBIT 23(a)



                       CONSENT OF INDEPENDENT ACCOUNTANTS



We hereby consent to the use in the Prospectus constituting part of this
Registration Statement on Form S-1 of our report dated November 9, 1998 relating
to the consolidated financial statements of Anchor National Life Insurance
Company, which appears in such Prospectus. We also consent to the reference to
us under the heading "Independent Accountants" in such Prospectus.




PRICEWATERHOUSECOOPERS LLP
Los Angeles, California
December 23, 1998




<TABLE> <S> <C>

<ARTICLE> 7
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE BALANCE
SHEET AND INCOME STATEMENT OF ANCHOR NATIONAL LIFE INSURANCE COMPANY'S FORM 10-K
FOR THE YEAR ENDED SEPTEMBER 30, 1998 AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          SEP-30-1998
<PERIOD-END>                               SEP-30-1998
<DEBT-HELD-FOR-SALE>                     1,954,754,000
<DEBT-CARRYING-VALUE>                                0
<DEBT-MARKET-VALUE>                                  0
<EQUITIES>                                     169,000
<MORTGAGE>                                 391,448,000
<REAL-ESTATE>                               24,000,000
<TOTAL-INVEST>                           2,734,742,000
<CASH>                                     333,735,000
<RECOVER-REINSURE>                                   0
<DEFERRED-ACQUISITION>                     539,850,000
<TOTAL-ASSETS>                          14,526,364,000
<POLICY-LOSSES>                          2,471,539,000
<UNEARNED-PREMIUMS>                                  0
<POLICY-OTHER>                                       0
<POLICY-HOLDER-FUNDS>                                0
<NOTES-PAYABLE>                             39,182,000
                                0
                                          0
<COMMON>                                     3,511,000
<OTHER-SE>                                 649,158,000
<TOTAL-LIABILITY-AND-EQUITY>            14,526,364,000
                                           0
<INVESTMENT-INCOME>                        217,354,000
<INVESTMENT-GAINS>                          19,482,000
<OTHER-INCOME>                             290,362,000
<BENEFITS>                                 130,482,000
<UNDERWRITING-AMORTIZATION>                 72,713,000
<UNDERWRITING-OTHER>                        18,209,000
<INCOME-PRETAX>                            209,692,000
<INCOME-TAX>                                71,051,000
<INCOME-CONTINUING>                        138,641,000
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                               138,641,000
<EPS-PRIMARY>                                        0
<EPS-DILUTED>                                        0
<RESERVE-OPEN>                                       0
<PROVISION-CURRENT>                                  0
<PROVISION-PRIOR>                                    0
<PAYMENTS-CURRENT>                                   0
<PAYMENTS-PRIOR>                                     0
<RESERVE-CLOSE>                                      0
<CUMULATIVE-DEFICIENCY>                              0
        

</TABLE>


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