FORM 11-K
 
                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549
                                   (Mark One)
               [X] ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934
                  For the fiscal year ended: December 31, 2004

                                       OR

             [ ] TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934
                 For the transition period from:____________ to ____________
                         Commission file number: 1-13754

                       THE ALLMERICA FINANCIAL EMPLOYEES'
                           401(k) MATCHED SAVINGS PLAN
                           ---------------------------
                            (Full title of the plan)

                         ALLMERICA FINANCIAL CORPORATION
                         -------------------------------
             (Exact name of registrant as specified in its charter)

         Delaware                                            04-3263626 
         --------                                            ----------   
(State or other jurisdiction of                            (I.R.S. Employer
 incorporation or organization)                         Identification Number)

               440 Lincoln Street, Worcester, Massachusetts 01653
               --------------------------------------------------
                    (Address of principal executive offices)
                                   (Zip Code)

                                 (508) 855-1000
                                 --------------
              (Registrant's telephone number, including area code)

        _________________________________________________________________
        (Former name, former address and former fiscal year, if changed
         since last report)


The Allmerica Financial
Employees' 401(k) Matched
Savings Plan
Financial Statements
and Additional Information
December 31, 2004 and 2003



The Allmerica Employees' 401(k) Matched Savings Plan
December 31, 2004 and 2003
--------------------------------------------------------------------------------






TABLE OF CONTENTS




Report of Independent Registered Public Accounting Firm....................  1
Statements of Net Assets Available for Benefits............................  2
Statements of Changes in Net Assets Available for Benefits.................  3
Notes to Financial Statements..............................................  4-9

Additional Information*

Schedule H, line 4i - Schedule of Assets (Held at End of Year)............ 10-11























*    Other  schedules  required by the Department of Labor Rules and Regulations
     on reporting and disclosure under the Employee  Retirement  Income Security
     Act of 1974, as amended, have been omitted because they are not applicable.







        Report of Independent Registered Public Accounting Firm


To the Participants and Administrator of
  The Allmerica Financial Employees'
  401(k) Matched Savings Plan:

In our opinion, the accompanying statements of net assets available for benefits
and the  related  statements  of changes in net assets  available  for  benefits
present fairly, in all material respects,  the net assets available for benefits
of The Allmerica  Financial  Employees' 401(k) Matched Savings Plan (the "Plan")
at December  31,  2004 and 2003,  and the  changes in net assets  available  for
benefits  for the years  then ended in  conformity  with  accounting  principles
generally accepted in the United States of America.  These financial  statements
are the  responsibility  of the  Plan'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 the standards of the
Public Company  Accounting  Oversight  Board (United  States).  Those  standards
require that we plan and perform the audit to obtain reasonable  assurance about
whether the financial  statements  are free of material  misstatement.  An audit
includes  examining,  on a test  basis,  evidence  supporting  the  amounts  and
disclosures in the financial  statements,  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 our opinion.

Our audits  were  conducted  for the  purpose of forming an opinion on the basic
financial statements taken as a whole. The Supplemental Schedule of Assets (Held
at End of  Year)  as of  December  31,  2004 is  presented  for the  purpose  of
additional analysis and is not a required part of the basic financial statements
but is supplementary information required by the Department of Labor's Rules and
Regulations for Reporting and Disclosure  under the Employee  Retirement  Income
Security Act of 1974. The  supplemental  schedule is the  responsibility  of the
Plan's management.  The supplemental schedule has been subjected to the auditing
procedures  applied in the audits of the basic financial  statements and, in our
opinion,  is fairly  stated in all  material  respects  in relation to the basic
financial statements taken as a whole.



Boston, Massachusetts
June 22, 2005



The Allmerica Financial Employees' 401 (k) Matched Savings Plan
Statements of Net Assets Available for Benefits
At December 31,
--------------------------------------------------------------------------------



                                                                   
                                                                        2004                  2003
                                                                 -----------------    -----------------
                                                                                       
Assets
Investments, at fair value:
     Non-affiliated mutual funds:
       Fidelity Equity-Income Fund                                $    62,048,913 *   $        -
       Spartan U.S. Equity Index Fund                                  45,549,038 *            -
       PIMCO Total Return Fund - Administrative Class                  35,388,301 *            -
       Fidelity Retirement Money Market Portfolio                      28,732,869 *            -
       Fidelity Low-Priced Stock Fund                                  23,450,102 *            -
       Artisan Mid Cap Fund                                            17,825,430              -
       American Funds Growth Fund of America- Class R4                 13,301,556              -
       Fidelity Small Cap Stock Fund                                    8,359,116              -
       Fidelity Diversified International Fund                          5,109,834              -
       Fidelity Freedom 2020 Fund                                       3,359,025              -
       Fidelity Freedom 2010 Fund                                       3,111,413              -
       Fidelity Freedom 2030 Fund                                       1,505,727              -
       Fidelity Freedom 2040 Fund                                         792,377              -
       Fidelity Freedom 2000 Fund                                         626,780              -
       Fidelity Freedom Income Fund                                       616,675              -
       Fidelity Advisor Equity Income Fund                                -                 60,495,628
       SSgA S&P 500 Index Fund                                            -                 44,039,499
       Dreyfus Premier Core Bond Fund                                     -                 33,467,190
       Dreyfus Cash Management Plus Fund                                  -                 33,328,427
       CRM Small Cap Value Fund                                           -                 15,903,590
       Putnam Vista Fund                                                  -                 12,828,137
       Alliance Bernstein Premier Growth Institutional Fund               -                  9,642,704
       TCW Galileo Small Cap Growth Fund                                  -                  4,308,779
       MFS High-Income Fund                                               -                  1,947,065
                                                                 -----------------    -----------------
                                                                      249,777,156          215,961,019

     Commingled Pool:
       Fidelity Managed Income Portfolio II - Class 2                  99,128,241 *            -

      Allmerica Financial Corporation Stock Fund:
       Allmerica Financial Corporation Stock                           22,525,263 *         23,848,138
       Cash and equivalents                                               727,444            1,058,553
                                                                 -----------------    -----------------
                                                                       23,252,707 *         24,906,691

Investment with First Allmerica Financial Life
    Insurance Company, at contract value:
      Fixed Fund                                                          -                116,772,652

Participant loans                                                       6,876,871            7,311,395
                                                                 -----------------    -----------------

Net assets available for benefits                                 $   379,034,975      $   364,951,757
                                                                 =================    =================

* Amount represents 5% or more of net assets available for benefits at
  December 31, 2004.



   The accompanying notes are an integral part of these financial statements.



                                       2



The Allmerica Financial Employees' 401(k) Matched Savings Plan
Statements of Changes in Net Assets Available for Benefits
For the Years Ended December 31,
--------------------------------------------------------------------------------


 
                                                                 2004                       2003
                                                         ---------------------      -------------------
                                                                                         
Net investment gains: 

  Net appreciation of:
      Non-affiliated mutual funds                        $      14,830,696       $      33,992,888
      Allmerica Financial Corporation Stock Fund                 1,357,455              16,783,197
  Interest and dividend income                                  13,519,104               7,747,968
  Other gains                                                       -                       96,778
                                                         ------------------      ------------------
Total net investment gains                                      29,707,255              58,620,831

Contributions:
  Employer contributions                                         5,185,445               5,320,009
  Employee contributions                                        19,021,436              18,210,228
                                                         ------------------      ------------------
                                                                24,206,881              23,530,237
                                                         ------------------      ------------------
       Total investment gains and contributions                 53,914,136              82,151,068
                                                         ------------------      ------------------
Benefit payments                                               (39,830,918)            (31,642,880)
                                                         ------------------      ------------------
       Net increase during year                                 14,083,218              50,508,188

Net assets available for benefits, beginning of year           364,951,757             314,443,569
                                                         ------------------      ------------------

Net assets available for benefits, end of year           $     379,034,975       $     364,951,757
                                                         ==================      ==================








   The accompanying notes are an integral part of these financial statements.


                                       3


The Allmerica Financial Employees' 401(k) Matched Savings Plan
Notes to Financial Statements
--------------------------------------------------------------------------------


NOTE 1 - Description of plan

     The following  description  of The Allmerica  Financial  Employees'  401(k)
     Matched  Savings Plan ("the  Plan") is provided  for general  informational
     purposes  only.  More complete  information is provided in the Summary Plan
     Description, which is available from the Plan Administrator.

     General

     The Plan is a defined  contribution  plan for  eligible  employees of First
     Allmerica Financial Life Insurance Company ("FAFLIC," "the Sponsor" or "the
     Company"),  a wholly-owned  subsidiary of Allmerica  Financial  Corporation
     ("AFC").

     The Plan is administered by the Sponsor ("the Plan  Administrator")  and is
     subject  to  the   provisions  of  the  Department  of  Labor's  Rules  and
     Regulations  for Reporting  and  Disclosure  under the Employee  Retirement
     Income Security Act of 1974, as amended ("ERISA").

     On October 13, 2003,  the Board of Directors of First  Allmerica  Financial
     Life  Insurance  Company  voted to  change  its  recordkeeper  from  Hewitt
     Associates LLC to Fidelity  Management Trust Company,  effective January 1,
     2004.  Additionally,  the  Board of  Directors  voted to  appoint  Fidelity
     Management  Trust  Company as  Trustee of the Plan and the AFC Stock  Fund,
     effective  January  1,  2004.  The Fixed  Fund,  which had been held by the
     Sponsor,  was liquidated at fair value  effective  January 1, 2004 upon the
     appointment of Fidelity  Management  Trust Company as the  recordkeeper and
     Trustee.  These funds were reinvested in other investment  vehicles offered
     by the Plan.  Prior to January 1, 2004, the Plan's  recordkeeper was Hewitt
     Associates,  LLC and the  Trustee  of the Plan and the AFC  Stock  Fund was
     State Street Bank and Trust Company.
 
     Eligibility

     Active  employees are eligible for  participation  in the Plan on the first
     day of employment with the Company, as defined by the Plan document.

     Employer contributions

     The Plan has a 401(k) match  provision.  Employees  are eligible to receive
     matching  contributions  in the Plan on the first day of the calendar month
     coincident  with or next  following  completion of one year of service,  as
     defined by the Plan document. Under this provision, the amount of the match
     is determined  by the Sponsor's  Board of Directors and is announced at the
     beginning  of each  year.  Employer  contributions  are 100%  vested to the
     participant  immediately upon receipt. In addition,  the Board of Directors
     may require that all matching  contributions be made to the AFC Stock Fund.
     However,  this  restriction  was not  imposed  during the 2004 or 2003 plan
     year.

     In 2004 and 2003, the matching contribution rate was 50% of the first 6% of
     participants' 401(k) contributions made to the Plan in each pay period. The
     matching  contribution  rate was not  applied  to any  2004 or 2003  401(k)
     "Catch-up Contributions"

                                       4


NOTE 1 - Description of plan (continued)

     made  by  participants   (see  "Participant   accounts").   These  employer
     contributions  were  allocated  to  the  same  investment  vehicles  as the
     employee contributions.

     Forfeitures

     Forfeited  amounts are used to offset the  employer  contributions  and are
     allocated  to the Plan's  investment  vehicles  based  upon the  investment
     elections   of  each   eligible   participant.   Forfeitures   of  employer
     contributions related to nonvested terminated participants were transferred
     to the Fidelity  Retirement  Money Market Fund in 2004 and the Dreyfus Cash
     Management  Plus Fund in 2003.  Forfeitures  in the  amount  of $3,021  and
     $69,589  were  used to  reduce  employer  contributions  in 2004 and  2003,
     respectively.
 
     Participant accounts

     In accordance with the Internal  Revenue  Service  ("IRS")  limits,  active
     participants are eligible to make 401(k) deferral contributions through the
     use of a salary  reduction  plan up to a maximum  of  $13,000  for 2004 and
     $12,000 for 2003.

     As a result  of the Tax  Relief  Reconciliation  Act of 2001,  a  "Catch-up
     Contribution"  provision was established to allow  employees,  who reach at
     least 50 years of age during the year, to accelerate the amount they defer,
     up to a maximum  of  $16,000  for 2004 and  $14,000  for 2003.  The  amount
     deferred  in excess of the annual  limit is not  eligible  to  receive  the
     Company match. In 2004, 146 employees  accelerated  their deferrals,  which
     amounted to $350,178 in additional contributions. During 2003, 99 employees
     accelerated  their  deferrals  resulting  in  additional  contributions  of
     $180,440.

     As directed by participant  election,  contributions can be invested in the
     non-affiliated  mutual funds or the Allmerica  Financial  Corporation Stock
     Fund. All investment  income is reinvested in the same  investment  vehicle
     and is  credited  to the  respective  participant  account.  Certain of the
     non-affiliated  mutual funds assess fees on participant accounts based upon
     the value of  shares  sold  should  the  participant  engage in the sale of
     shares during a  pre-determined  time period.  These fees  currently  range
     between 1% and 2% of the value of shares sold.

     Participant loans

     Loans made to active  participants are secured by the vested portion of the
     participant's  account  up to the limit as  defined  in the Plan  document.
     Loans vary in duration, depending upon purpose, and are at an interest rate
     determined by the Plan  Administrator.  The interest rate currently used is
     based  upon  the  Prime  Rate  plus  1% at the  inception  of the  loan.  A
     participant  is limited to a maximum  of two loans  outstanding  at any one
     time  from  all  plans of the  Company  combined.  As of  January  1,  2004
     participants  are charged a $75 loan  initiation  fee by the  recordkeeper.
     Loan  fees  were not  charged  to  employees  in 2003.  Interest  income on
     participant   loans  totaled  $400,891  and  $492,746  in  2004  and  2003,
     respectively.


                                       5


NOTE 1 - Description of plan (continued)

     Distributions and vesting provisions

     Vested account  balances are payable in the event of retirement,  death, or
     separation  from  service  (including  disability)  as  defined in the Plan
     document.  Distributions  to participants are payable either through a lump
     sum payment or through  periodic  payments.  If a lump sum  distribution is
     elected,  the  participant  has the option of taking  their  balance in the
     Allmerica Financial Corporation Stock Fund in-kind.

     A  participant's  account  balance is  immediately  vested and includes the
     employer  matching  contribution,   the  rollover  account,  the  after-tax
     voluntary   contribution   account   and  the  tax   deductible   voluntary
     contribution   account.   In   addition,   all  employer   profit   sharing
     contributions for active participants  (contributed for the plan years 1994
     and prior) are now fully vested.

     Payments  from  the  fund  are  subject  to  limitations  and  requirements
     specified in the Plan document.

NOTE 2 - Significant accounting policies

     Significant  accounting  and  reporting  policies  followed by the Plan are
     summarized as follows:

     Basis of presentation

     The  accompanying  financial  statements  have been prepared on the accrual
     basis of  accounting  in  accordance  with  generally  accepted  accounting
     principles.

     Use of estimates

     The  preparation  of financial  statements  in  conformity  with  generally
     accepted  accounting  principles  requires management to make estimates and
     assumptions  that affect the reported amounts of assets and liabilities and
     disclosure  of  contingent  assets  and  liabilities  at  the  date  of the
     financial  statements  and the  reported  amounts of revenues  and expenses
     during  the  reporting  period.  Actual  results  could  differ  from those
     estimates.

     Valuation of investments

     During 2003, the Fixed Fund was held in the Sponsor's  general  account and
     provided for  guaranteed  rates of interest  reset  annually.  The credited
     interest  rate was 5.42% for monies  invested in 2003.  The average rate of
     return for the Fixed Fund for the year ended  December  31, 2003 was 5.42%.
     This investment option was no longer available to employees in 2004.

     The insurance  contracts  underlying  the Fixed Fund of the Plan were fully
     benefit-responsive and were therefore exempt from fair value accounting for
     certain  contracts  under the  provisions  of Statement  of Position  94-4,
     "Reporting Investment Contracts


                                       6


NOTE 2 - Significant accounting policies (continued)

     Held by Health and Welfare Benefit Plans and Defined  Contribution  Plans".
     As  such,  these  investments  were  recorded  at  contract  value,   which
     approximated fair value at December 31, 2003.
 
     Investments in non-affiliated  mutual funds are priced using the end of day
     fair  market  value  of  the  underlying  funds  as  recorded  by  Fidelity
     Management  Trust  Company in 2004 and as recorded by State Street Bank and
     Trust Company in 2003, which are based on the published net asset values of
     the funds.

     Investments in Fidelity Managed Income Portfolio II - Class 2, a commingled
     pool of the Fidelity  Group Trust for Employee  Benefit  Plans,  are priced
     daily. This pool primarily  invests in short or long-term  contracts issued
     by insurance companies ("GICs"),  investment contracts issued by commercial
     banks ("BICs"),  synthetic investment  contracts,  fixed income securities,
     and money market mutual funds.  The portfolio seeks to maintain a stable $1
     unit price.  Investments in GICs, BICs and synthetic  investment  contracts
     are carried at contract value as they provide for fully  benefit-responsive
     withdrawals.  Fixed  income  securities  for which  quotations  are readily
     available are valued at their most recent bid price.  For those  securities
     for which  quotations  are not readily  available,  the  security is valued
     based  upon a  method  that  the  Trustee  of  the  portfolio  deems  to be
     reflective of fair value.  Investments  in money market funds are valued at
     the net asset value each day.

     The Allmerica  Financial  Corporation Stock Fund is stated at fair value as
     determined  by  quoted  market  prices  of both AFC  common  stock and cash
     equivalents held in the Fund. The investment returns for 2004 and 2003 were
     6.42% and 190.75%, respectively.

     Participant loans are valued at their outstanding values, which approximate
     fair value.

     Purchases and sales of  securities  are accounted for as of the trade date.
     Dividends  are  recorded on the  ex-dividend  date and  interest  income is
     recorded on an accrual basis.

     Net appreciation  (depreciation) on the fair value of investments  includes
     realized gains and (losses) and unrealized  appreciation  (depreciation) of
     the investments.

     Administrative expenses and other fees

     Expenses  related to the  management  of  investments  are reflected in the
     value of each  investment  vehicle in 2004. All other fees incurred in 2004
     in the administration of the Plan were paid by the Sponsor.

     During 2003,  Hewitt  Associates  LLC  maintained  agreements  with certain
     non-affiliated  mutual funds and for such agreements  received a portion of
     certain  asset-based fees (12b-1 fees) charged by the fund. These fees were
     calculated  based on the  average  daily net asset  value of Plan assets in
     each respective fund. These fees were used to

                                       7


 NOTE 2 - Significant accounting policies (continued)

     reduce  charges  by  Hewitt  Associates  LLC to  the  Sponsor  for  certain
     administrative and professional services. In addition, the Sponsor paid all
     other expenses incurred in 2003 in the administration of the Plan.

     Payment of benefits

     Benefits are recorded when paid.

NOTE 3 - Federal income taxes

     The Internal  Revenue  Service has determined and informed the Sponsor by a
     letter dated  February 21, 2002,  that the Plan is qualified  and the trust
     established under the Plan is tax exempt under the appropriate  sections of
     the Internal  Revenue Code. The Plan  Administrator  believes that the Plan
     continues to be designed and is currently being operated in compliance with
     the  applicable  provisions  of the Internal  Revenue Code.  Therefore,  no
     provision for income tax is required.

NOTE 4 - Plan termination

     Although the Sponsor has not  expressed any intent to terminate the Plan or
     discontinue  contributions,  it may  do so at any  time.  Should  the  Plan
     terminate  or  discontinue  contributions,  the  Plan  provides  that  each
     participant's  interest  in the Plan's  assets as of the  termination  date
     shall become 100% vested and  non-forfeitable  and be either payable to the
     participant or applied to purchase a non-forfeitable  retirement annuity at
     the participant's option.

NOTE 5 - Other matters
 
     Effective  January  1,  2003,   certain   common-law   employees   formerly
     participating  in The Allmerica  Financial  Agent's  Retirement Plan became
     employees of the Company.  The AFC Board of Directors approved  eligibility
     for immediate  participation in The Allmerica  Financial  Employees' 401(k)
     Matched Savings Plan.

NOTE 6 - Subsequent events

     On November 8, 2004 the Board of Directors of FAFLIC approved the following
     amendments to the Plan effective January 1, 2005:

     o    The  name  of the  Plan  was  changed  from  The  Allmerica  Financial
          Employees'  401(k)  Matched  Savings Plan to The  Allmerica  Financial
          Retirement Savings Plan.

     o    The  employer  matching  contribution  rate  has  been  changed  to  a
          contribution  equal to 100% of each  participant's  deferral,  up to a
          maximum of 5% of compensation contributed.

     o    All  employees  will be  immediately  eligible to receive the employer
          match.


                                       8


NOTE 6 - Subsequent events (continued)

     o    Employees  hired on or after January 1, 2005 will vest in the employer
          contribution  at a rate of 50% upon completion of one year of service,
          and 100% after two years of  service as defined in the Plan  Document.
          All employees hired prior to January 1, 2005 will be 100% vested.  All
          employee contributions continue to be vested 100% immediately.

     o    The Plan  Sponsor  will  conduct  an annual  true-up  of the  employer
          matching  contributions  for all those  participants  active as of the
          last day of the  calendar  year.  Through  the  true-up  process,  the
          Company ensures that participants  maximize their annual Company match
          on their deferrals,  even if a participant  periodically adjusts their
          deferrals throughout the course of the year.

     o    Individuals  employed by the  Company on the last day of the  calendar
          year,  as well as those who retired or died  during the year,  will be
          eligible to receive a non-elective  employer  contribution equal to 3%
          of their eligible compensation.  This contribution will be distributed
          on  or  before  March  15 of  the  following  year  and  allocated  in
          accordance with the investment election made by each participant. This
          award is subject to the same vesting provisions as the employer match,
          described above.



                                       9


The Allmerica Financial Employees' 401(k) Matched Savings Plan
For 5500, Schedule H, Line 4i
Schedule of Assets (Held at End of Year)
At December 31, 2004
--------------------------------------------------------------------------------





                    
             Identity of                            Description                  Shares or
                Issue                              of Investments                  Units       Current Value
                                                                                                  
Investments with non-affiliated
mutual funds:

   *Fidelity Equity-Income Fund     Diversified portfolio of large-cap          1,175,614    $   62,048,913
                                    value companies.

   *Spartan U.S. Equity Index Fund  Common stocks primarily those               1,062,740        45,549,038
                                    included in the S&P Composite Stock
                                    Index.

    PIMCO Total Return Fund -       Invests primarily in debt                   3,316,617        35,388,301
    Administrative Class            securities, such as: U.S.
                                    government securities, corporate
                                    bonds, and mortgage-related
                                    securities.

   *Fidelity Retirement Money       Invests in U.S. dollar-denominated         28,732,869        28,732,869
    Market Portfolio                money market securities of domestic
                                    and foreign issuers as well as
                                    repurchase agreements.

   *Fidelity Low-Priced Stock Fund  Small-cap blend fund seeking                  582,611        23,450,102
                                    capital appreciation.

    Artisan Mid Cap Fund            Long-term capital growth fund of              603,025        17,825,430
                                    mid-size companies.

    American Funds Growth Fund of   Large-cap growth fund invested                488,489        13,301,556
    America - Class R4              primarily in common stocks.

   *Fidelity Small Cap Stock Fund   Small-cap fund focused on long-term           460,304         8,359,116
                                    growth of capital by investing in
                                    both growth and value oriented
                                    securities.

   *Fidelity Diversified            Large-cap growth fund invested                178,416         5,109,834
    International Fund              primarily in non-U.S. denominated
                                    common stocks.

   *Fidelity Freedom 2020 Fund      Underlying securities are other               240,618         3,359,025
                                    Fidelity mutual funds.  Designed
                                    for investors who expect to retire
                                    around the year 2020.


                                       10






The Allmerica Financial Employees' 401(k) Matched Savings Plan
Form 5500, Schedule H, Line 4i (continued)
Schedule of Assets (Held at End of Year)
December 31, 2004
--------------------------------------------------------------------------------


                  
             Identity of                            Description                  Shares or
                Issue                              of Investments                  Units       Current Value
                                                                                                    

   *Fidelity Freedom 2010 Fund      Invests in a combination of                   228,444      $   3,111,413
                                    Fidelity equity, fixed-income, and
                                    money market funds.  Targeted to
                                    investors expected to retire around
                                    the year 2010.

   *Fidelity Freedom 2030 Fund      Underlying securities are other               106,941          1,505,727
                                    Fidelity mutual funds.  Designed
                                    for investors who expect to retire
                                    around the year 2030.

   *Fidelity Freedom 2040 Fund      Large-cap blend fund that invests              95,813            792,377
                                    in a combination of Fidelity
                                    equity, fixed income, and money
                                    market funds.  Targeted to
                                    investors expected to retire around
                                    the year 2040.

   *Fidelity Freedom 2000 Fund      Conservative allocation fund                   51,886            626,780
                                    invested in Fidelity equity,
                                    fixed-income, and money market
                                    funds.  Targeted to investors
                                    already in retirement.

   *Fidelity Freedom Income Fund    Invests in a combination of                    54,718            616,675
                                    Fidelity equity, fixed-income and
                                    money market funds.  Designed for
                                    investors already in retirement.

Commingled Pool:
      *Fidelity Managed Income      Stable value fund invested in              99,128,241         99,128,241
       Portfolio II - Class 2       investment contracts issued by
                                    insurance companies and other
                                    financial institutions, and in
                                    fixed income securities.

*Allmerica Financial                                                                            
 Corporation Stock
 Fund:
    *Allmerica Financial            Common stock traded on the New York                           22,525,263
     Corporation Stock              Stock Exchange.

     Cash and equivalents                                                                             727,444

*Participant loans                   Interest rates from 4.75% to                                  6,876,871
                                     10.58%.
                                                                                              ---------------
Total Investments                                                                              $ 379,034,975
                                                                                              ===============


*  Represents party-in-interest.




                                       11





                                   SIGNATURES

The Plan.  Pursuant to the requirements of the Securities  Exchange Act of 1934,
the trustees (or other persons who  administer  the employee  benefit plan) have
duly  caused this  annual  report to be signed on its behalf by the  undersigned
hereunto duly authorized.


                                  THE ALLMERICA FINANCIAL EMPLOYEES'
                                  401(K) MATCHED SAVINGS PLAN      
                                  ---------------------------
                                  (Name of Plan)
 
                                  /s/ John Taylor
                                  ---------------
                                  Plan Administrator:  First Allmerica Financial
                                  Life Insurance Company by John Taylor
                                  Vice President, Compensation and Benefits

                                  June 24, 2005
 


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Exhibit Index

Exhibit 23.1      Consent of Independent Registered Public Accounting Firm


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