UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                         Post-Effective Amendment No. 9
                    to Registration Statement No. 333-114888
                                    Form S-1

                                      Under

                           The Securities Act of 1933

                       RiverSource Life Insurance Company
                     (previously IDS Life Insurance Company)
             (Exact name of registrant as specified in its charter)

                                    Minnesota
         (State or other jurisdiction of incorporation or organization)

                                   41-0823832
                      (I.R.S. Employer Identification No.)

            70100 Ameriprise Financial Center, Minneapolis, MN 55474
                                 (800) 862-7919
    (Address, including zip code, and telephone number, including area code,
                  of registrant's principal executive offices)

                               Rodney J. Vessels
                       RiverSource Life Insurance Company
         50605 Ameriprise Financial Center, Minneapolis, Minnesota 55474
                                 (612) 671-2237
            Name, address, including zip code, and telephone number,
                   including area code, of agent for service)

It is proposed that this filing become effective on Sept. 10, 2007.

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]

Pursuant to Rule 429 under the Securities Act of 1933, the prospectuses
contained or incorporated herein by reference also relate to and constitute a
post-effective amendment to Securities Act Registration Statement No. 33-28976.

This Post-Effective Amendment No. 9 is not intended to supersede Post-Effective
Amendment No. 8 to Registration Statement No. 333-114888, filed on or about
April 24, 2007.



                         Calculation of Registration Fee



TITLE OF EACH CLASS                           PROPOSED MAXIMUM     PROPOSED MAXIMUM
OF SECURITIES TO BE           AMOUNT TO BE   OFFERING PRICE PER   AGGREGATE OFFERING       AMOUNT OF
REGISTERED                     REGISTERED           UNIT                 PRICE         REGISTRATION FEE
- ---------------------------   ------------   ------------------   ------------------   ----------------
                                                                           
Interests in market           N/A
value adjusted annuity
contracts and accounts
of RiverSource Retirement
Advisor Advantage Plus
Variable Annuity,
RiverSource Retirement
Advisor Select Plus
Variable Annuity,
RiverSource Retirement
Advisor 4 Advantage
Variable Annuity,
RiverSource Retirement
Advisor 4 Select Variable
Annuity, RiverSource
Retirement Advisor 4 Access
Variable Annuity, and
RiverSource Guaranteed
Term Annuity.




                                    PART I.

                       INFORMATION REQUIRED IN PROSPECTUS

The prospectus for RiverSource Retirement Advisor 4 Advantage(SM) Variable
Annuity/RiverSource Retirement Advisor 4 Select(SM) Variable Annuity/RiverSource
Retirement Advisor 4 Access Variable Annuity is incorporated by reference from
Part A of Post-Effective Amendment No. 46 to Registration Statement
No. 333-79311, filed on or about Aug. 30, 2007.



                                    PART II.

                     INFORMATION NOT REQUIRED IN PROSPECTUS

Item 13. Other Expenses of Issuance and Distribution

The expenses of the issuance and distribution of the interests in the
RiverSource Account MGA (previously IDS Life Account MGA) of RiverSource Life
Insurance Company (previously IDS Life Insurance Company) to be registered,
other than commissions on sales of the Contracts, are to be borne by the
registrant.

Item 14. Indemnification of Directors and Officers

The amended and restated By-Laws of the depositor provide that the depositor
will indemnify, to the fullest extent now or hereafter provided for or permitted
by law, each person involved in, or made or threatened to be made a party to,
any action, suit, claim or proceeding, whether civil or criminal, including any
investigative, administrative, legislative, or other proceeding, and including
any action by or in the right of the depositor or any other corporation, or any
partnership, joint venture, trust, employee benefit plan, or other enterprise
(any such entity, other than the depositor, being hereinafter referred to as an
"Enterprise"), and including appeals therein (any such action or process being
hereinafter referred to as a "Proceeding"), by reason of the fact that such
person, such person's testator or intestate (i) is or was a director or officer
of the depositor, or (ii) is or was serving, at the request of the depositor, as
a director, officer, or in any other capacity, or any other Enterprise, against
any and all judgments, amounts paid in settlement, and expenses, including
attorney's fees, actually and reasonably incurred as a result of or in
connection with any Proceeding, except as provided below.

No indemnification will be made to or on behalf of any such person if a judgment
or other final adjudication adverse to such person establishes that such
person's acts were committed in bad faith or were the result of active and
deliberate dishonesty and were material to the cause of action so adjudicated,
or that such person personally gained in fact a financial profit or other
advantage to which such person was not legally entitled. In addition, no
indemnification will be made with respect to any Proceeding initiated by any
such person against the depositor, or a director or officer of the depositor,
other than to enforce the terms of this indemnification provision, unless such
Proceeding was authorized by the Board of Directors of the depositor. Further,
no indemnification will be made with respect to any settlement or compromise of
any Proceeding unless and until the depositor has consented to such settlement
or compromise.

The depositor may, from time to time, with the approval of the Board of
Directors, and to the extent authorized, grant rights to indemnification, and to
the advancement of expenses, to any employee or agent of the depositor or to any
person serving at the request of the depositor as a director or officer, or in
any other capacity, of any other Enterprise, to the fullest extent of the
provisions with respect to the indemnification and advancement of expenses of
directors and officers of the depositor.

Insofar as indemnification for liability arising under the Securities Act of
1933 (the "Act") may be permitted to directors, officers and controlling persons
of the depositor or the registrant pursuant to the foregoing provisions, or
otherwise, the registrant has been advised that in the opinion of the Securities
and Exchange Commission such indemnification is against public policy as
expressed in the Act and is, therefore, unenforceable. In the event that a claim
for indemnification against such liabilities (other than the payment by the
registrant of expenses incurred or paid by a director, officer or controlling
person of the registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Act and will
be governed by the final adjudication of such issue.

Item 15. Recent Sales of Unregistered Securities

Not Applicable.



Item 16. (A) Exhibits

     1.   Form of Principal Underwriter Agreement for RiverSource Life Insurance
          Company Variable Annuities and Variable Life Insurance filed
          electronically as Exhibit 3.1 to the Initial Registration Statement on
          Form N-4 for RiverSource Variable Annuity Account (previously American
          Enterprise Variable Annuity Account), RiverSource Signature(SM) Select
          Variable Annuity and RiverSource Signature(SM) Variable Annuity, on or
          about Jan. 2, 2007, is incorporated by reference.

     2.1  Articles of Merger of IDS Life Insurance Company and American
          Enterprise Life Insurance Company dated March 16, 2006, filed
          electronically as Exhibit 2.1 to Post-Effective Amendment No. 8 to
          Registration Statement No. 333-114888, is incorporated by reference.

     2.2  Articles of Merger of IDS Life Insurance Company and American Partners
          Life Insurance Company dated March 17, 2006, filed electronically as
          Exhibit 2.2 to Post-Effective Amendment No. 8 to Registration
          Statement No. 333-114888, is incorporated by reference.

     3.1  Copy of Certificate of Incorporation of IDS Life Insurance Company
          filed electronically as Exhibit 3.1 to Post-Effective Amendment No. 5
          to Registration Statement No. 33-28976 is incorporated herein by
          reference.

     3.2  Copy of Certificate of Amendment of Certificate of Incorporation of
          IDS Life Insurance Company dated June 22, 2006, filed electronically
          as Exhibit 27(f)(1) to Post-Effective Amendment No. 28 to Registration
          Statement No. 333-69777 is incorporated by reference.

     3.3  Copy of Amended and Restated By-Laws of RiverSource Life Insurance
          Company filed electronically as Exhibit 27(f)(2) to Post-Effective
          Amendment No. 28 to Registration Statement No. 333-69777 is
          incorporated by reference.

     3.4  Copy of Resolution of the Board of Directors of IDS Life Insurance
          Company, dated May 5, 1989, establishing IDS Life Account MGA filed
          electronically as Exhibit 3.3 to Post-Effective Amendment No. 5 to
          Registration Statement No. 33-28976 is incorporated herein by
          reference.

     3.5  Unanimous Written Consent of the Board of Directors In Lieu of a
          Meeting for IDS Life Insurance Company, adopted Dec. 8, 2006 for the
          Re-designation of the Separate Accounts to Reflect Entity
          Consolidation and Rebranding filed electronically as Exhibit 27(a)(6)
          to Post-Effective Amendment No. 28 to Registration Statement No.
          333-69777 is incorporated by reference.

     4.1  Copy of Non-tax qualified Group Annuity Contract, Form 30363C, filed
          electronically as Exhibit 4.1 to Post-Effective Amendment No. 5 to
          Registration Statement No. 33-28976 is incorporated herein by
          reference.

     4.2  Copy of Non-tax qualified Group Annuity Certificate, Form 30360C,
          filed electronically as Exhibit 4.2 to Post-Effective Amendment No. 5
          to Registration Statement No. 33-28976 is incorporated herein by
          reference.

     4.3  Copy of Endorsement No. 30340C-GP to the Group Annuity Contract filed
          electronically as Exhibit 4.3 to Post-Effective Amendment No. 5 to
          Registration Statement No. 33-28976 is incorporated herein by
          reference.

     4.4  Copy of Endorsement No. 30340C to the Group Annuity Certificate filed
          electronically as Exhibit 4.4 to Post-Effective Amendment No. 5 to
          Registration Statement No. 33-28976 is incorporated herein by
          reference.

     4.5  Copy of Tax qualified Group Annuity Contract, Form 30369C, filed
          electronically as Exhibit 4.5 to Post-Effective Amendment No. 10 to
          Registration Statement No. 33-28976 is incorporated herein by
          reference.

     4.6  Copy of Tax qualified Group Annuity Certificate, Form 30368C, filed
          electronically as Exhibit 4.6 to Post-Effective Amendment No. 10 to
          Registration Statement No. 33-28976 is incorporated herein by
          reference.

     4.7  Copy of Group IRA Annuity Contract, Form 30372C, filed electronically
          as Exhibit 4.7 to Post-Effective Amendment No. 10 to Registration
          Statement No. 33-28976 is incorporated herein by reference.

     4.8  Copy of Group IRA Annuity Certificate, Form 30371C, filed
          electronically as Exhibit 4.8 to Post-Effective Amendment No. 10 to
          Registration Statement No. 33-28976 is incorporated herein by
          reference.

     4.9  Copy of Non-tax qualified Individual Annuity Contract, Form 30365D,
          filed electronically as Exhibit 4.9 to Post-Effective Amendment No. 10
          to Registration Statement No. 33-28976 is incorporated herein by
          reference.



     4.10 Copy of Endorsement No. 30379 to the Individual Annuity Contract,
          filed electronically as Exhibit 4.10 to Post-Effective Amendment No.
          10 to Registration Statement No. 33-28976 is incorporated herein by
          reference.

     4.11 Copy of Tax qualified Individual Annuity Contract, Form 30370C, filed
          electronically as Exhibit 4.11 to Post-Effective Amendment No. 10 to
          Registration Statement No. 33-28976 is incorporated herein by
          reference.

     4.12 Copy of Individual IRA Annuity Contract, Form 30373C, filed
          electronically as Exhibit 4.12 to Post-Effective Amendment No. 10 to
          Registration Statement No. 33-28976 is incorporated herein by
          reference.

     4.13 Copy of Endorsement No. 33007 filed electronically as Exhibit 4.13 to
          Post-Effective Amendment No. 12 to Registration Statement No. 33-28976
          is incorporated herein by reference.

     4.14 Form of Traditional IRA or SEP-IRA Annuity Endorsement (form 131061)
          filed electronically as Exhibit 4.14 to Post-Effective Amendment No.
          17 to Registration Statement No. 33-28976 is incorporated herein by
          reference.

     4.15 Form of Roth IRA Annuity Endorsement (form 131062) filed
          electronically as Exhibit 4.15 to Post-Effective Amendment No. 17 to
          Registration Statement No. 33-28976 is incorporated herein by
          reference.

     4.16 Form of Simple IRA Annuity Endorsement (form 131063) filed
          electronically as Exhibit 4.13 to Post-Effective Amendment No. 14 to
          Registration Statement No. 333-79311, is incorporated by reference.

     4.17 Form of TSA Endorsement (form 131068), filed electronically as Exhibit
          4.17 to Post-Effective Amendment No. 2 to Registration Statement No.
          333-79311, is incorporated by reference.

     4.18 Form of Deferred Annuity Contract for Retirement Advisor Advantage
          Plus (form 1043A) filed electronically as Exhibit 4.15 to IDS Life
          Variable Account 10 Post-Effective Amendment No. 21 to Registration
          Statement No. 333-79311, filed on or about Jan. 23, 2004, is
          incorporated by reference.

     4.19 Form of Deferred Annuity Contract for Retirement Advisor Select Plus
          (form 131041A) filed electronically as Exhibit 4.16 to IDS Life
          Variable Account 10 Post-Effective Amendment No. 21 to Registration
          Statement No. 333-79311, filed on or about Jan. 23, 2004, is
          incorporated by reference.

     4.20 Form of Guarantee Period Accounts Rider filed electronically as
          Exhibit 4.24 to IDS Life Variable Account 10 Post-Effective Amendment
          No. 25 to Registration Statement No. 333-79311, filed on or about June
          2, 2004, is incorporated by reference.

     4.21 Form of Deferred Annuity Contract for RiverSource Retirement Advisor 4
          Advantage (form 131101) filed electronically as Exhibit 4.17 to IDS
          Life Variable Account 10 Post-Effective Amendment No. 40 to
          Registration Statement No. 333-79311, filed on or about June 5, 2006,
          is incorporated by reference.

     4.22 Form of Deferred Annuity Contract for RiverSource Retirement Advisor 4
          Select Variable Annuity (form 131102) filed electronically as Exhibit
          4.18 to IDS Life Variable Account 10 Post-Effective Amendment No. 40
          to Registration Statement No. 333-79311, filed on or about June 5,
          2006 is incorporated by reference.

     4.23 Form of Deferred Annuity Contract for RiverSource Retirement Advisor
          Access Variable Annuity (form 131103) filed electronically as Exhibit
          4.19 to IDS Life Variable Account 10 Post-Effective Amendment No. 40
          to Registration Statement No. 333-79311, filed on or about June 5,
          2006 is incorporated by reference.

     5.   Opinion of Counsel regarding legality of Contracts is filed
          electronically herewith.

     6.-20. Not Applicable.

     21.  Copy of List of Subsidiaries filed electronically as Exhibit 22 to
          Post-Effective Amendment No. 8 to Registration Statement No. 33-28976
          is incorporated herein by reference.

     22.  Not Applicable.



     23.  Consent of Independent Registered Public Accounting Firm is filed
          electronically herewith.

     24.  Power of Attorney to sign Amendments to this Registration Statement,
          dated Aug. 30, 2007 is filed electronically herewith.

     25.-99. Not Applicable

Item 17. Undertakings

A. The Registrant undertakes:

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

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

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

          (iii) to include any material information with respect to the plan of
               distribution not previously disclosed in the Registration
               Statement or any material change to such information in the
               Registration Statement,

     (2)  that, for the purpose of determining any liability under the
          Securities Act of 1933, each such post-effective amendment shall be
          deemed to be a new Registration Statement relating to the securities
          offered therein, and the offering of such securities at that time may
          be deemed to be the initial bonafide offering thereof,

     (3)  that all post-effective amendments will comply with the applicable
          forms, rules and regulations of the Commission in effect at the time
          such post-effective amendments are filed, and

     (4)  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.

B.   The Registrant represents that it is relying upon the no-action assurance
     given to the American Council of Life Insurance (pub. avail. Nov. 28,
     1988). Further, the Registrant represents that it has complied with the
     provisions of paragraphs (1) - (4) of the no-action letter.



                                   SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the Registrant,
RiverSource Life Insurance Company has duly caused this Registration Statement
to be signed on its behalf by the undersigned, thereunto duly authorized in the
City of Minneapolis, and State of Minnesota on the 30th day of Aug. 2007.

                                        RiverSource Life Insurance Company
                                        (Registrant)


                                        By /s/ Timothy V. Bechtold*
                                           -------------------------------------
                                           Timothy V. Bechtold
                                           President

Pursuant to the requirements of the Securities Act of 1933, this Registration
Statement has been signed by the following persons in the capacities indicated
on the 30th day of Aug., 2007.



Signature                                                 Title
- -------------------------------------   ----------------------------------------
                                     


/s/ Gumer C. Alvero*                    Director and Executive Vice
- -------------------------------------   President - Annuities
Gumer C. Alvero


/s/ Timothy V. Bechtold*                Director and President
- -------------------------------------   (Chief executive officer)
Timothy V. Bechtold


/s/ Brian J. McGrane*                   Director, Executive Vice
- -------------------------------------   President and Chief Financial
Brian J. McGrane                        Officer


/s/ Kevin E. Palmer*                    Director, Vice President and
- -------------------------------------   Chief Actuary
Kevin E. Palmer


/s/ Bridget M. Sperl*                   Executive Vice President -
- -------------------------------------   Client Services
Bridget M. Sperl


/s/ David K. Stewart*                   Vice President and Controller
- -------------------------------------   (Principal Accounting Officer)
David K. Stewart


*    Signed pursuant to Power of Attorney dated Aug. 30, 2007 filed
     electronically herewith as Exhibit 24 to Registrant's Post-Effective
     Amendment No. 9, by:


/s/ Rodney J. Vessels
- -------------------------------------
Rodney J. Vessels
Assistant General Counsel



                                  EXHIBIT INDEX

5.   Opinion of Counsel regarding legality of Contracts.

23.  Consent of Independent Registered Public Accounting Firm.

24.  Power of Attorney.