IMG TAX EXEMPT LIQUID ASSETS FUND INC
485BPOS, 1997-09-30
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              As filed with the Securities and Exchange Commission
                                                     Registration No. 2-81547

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                   Form N-1A
                             REGISTRATION STATEMENT
                        UNDER THE SECURITIES ACT OF 1933              [X]

                          Pre-Effective Amendment No. ___             [_]
                          Post-Effective Amendment No. 19             [X]
                                     and/or
                        REGISTRATION STATEMENT UNDER THE
                         INVESTMENT COMPANY ACT OF 1940               [X]
                                 Amendment No. 17                     [X]
                       (Check appropriate box or boxes.)


                          MUNICIPAL ASSETS FUNDS, INC.
               (Exact Name of Registrant as Specified in Charter)
                               2203 Grand Avenue
                          Des Moines, Iowa 50312-5338
              (Address of Principal Executive Offices) (Zip Code)

                         Registrant's Telephone Number,
                      including Area Code: (515) 244-5426
                           DAVID W. MILES, President
                          Municipal Assets Funds, Inc.
                               2203 Grand Avenue
                          Des Moines, Iowa 50312-5338
                    (Name and Address of Agent for Service)


                        Copies of all Communications to:
                              JOHN C. MILES, ESQ.
                  Cline, Williams, Wright, Johnson & Oldfather
                            1900 First Bank Building
                            Lincoln, Nebraska 68508

Approximate Date of Proposed Public Offering:   As soon as practicable after the
Registration Statement becomes effective.

It is proposed  that this filing will  become  effective  pursuant to  paragraph
(b) of Rule 485 under the Securities Act of 1933.

The  Registrant  has  registered  an  indefinite  number of its shares under the
Securities Act of 1933 pursuant to Rule 24f-2 under the  Investment  Company Act
of 1940, and the Rule 24f-2  Notice for the fiscal year ended June 30, 1997, was
filed on or about August 21, 1997. 
<PAGE>

                          MUNICIPAL ASSETS FUNDS, INC.

                             Cross-Reference Sheet
                            Required by Rule 404(c)


N-1A Item No.                                  Location in Prospectus

PART A
1.  Cover Page.................................Cover Page
2.  Synopsis...................................Highlights
3.  Financial Highlights.......................Financial Highlights
4.  General Description of Registrant..........Investment Objectives, Policies
                                               and Restrictions; Organization
                                               and Shares of the Fund
5.  Management of the Fund.....................Organization and Shares of the
                                               Fund; Management and Fees
6.  Capital Stock and Other Securities.........Cover Page; Distributions and
                                               Taxes; Organization and Shares 
                                               of the Fund
7.  Purchase of Securities Being Offered.......Opening an Account--Purchasing
                                               Shares
8.  Redemption or Repurchase...................Redeeming Shares
9.  Legal Proceedings..........................Not Applicable


PART B

                                               Location in Statement of
                                               Additional Information

10. Cover Page.................................Cover Page
11. Table of Contents..........................Table of Contents
12. General Information and History............General Information and History
13. Investment Objective and Policies..........Investment Objectives, Policies
                                               and Restrictions
14. Management of the Registrant...............Management
15. Control Persons and Principal
    Holders of Securities......................Other Information--Principal
                                               Shareholders
16. Investment Advisory and Other Services.....The Investment Management
                                               Agreement
17. Brokerage Allocation.......................Other Information--Portfolio
                                               Transactions
18. Capital Stock and Other Securities.........Other Information--Organization
                                               and Shares of Fund
19. Purchase, Redemption and Pricing
    of Securities Being Offered................Purchases of Fund Shares;
                                               Valuing the Fund's Shares
20. Tax Status.................................Taxation
21. Underwriters...............................Purchases of Fund Shares
22. Calculation of Yield Quotations
    of Money Market Funds......................Calculation of Yield
23. Financial Statements.......................Cover Page


                                     PART C

Information required to be included in Part C is set forth under the appropriate
item, so numbered in Part C to this Registration Statement.
<PAGE>
LIQUID ASSETS FUND AND                                             SWEEP SHARES
MUNICIPAL ASSETS FUND

                 2203 Grand Avenue, Des Moines, Iowa 50312-5338

IMG Financial Services, Inc......................................1-800-798-1819
                                                                   515-244-5426
________________________________________________________________________________

PROSPECTUS                                                   SEPTEMBER 30, 1997
________________________________________________________________________________

Liquid  Assets  Fund  and  Municipal  Assets  Fund,  each  of  these  a  "Fund",
(collectively,  the "Funds") are money  market  mutual funds  designed to enable
investors to meet short-term  goals.  Investors choose whichever Fund best suits
their needs and may, without charge,  exchange Funds as their investment outlook
or goals change.

Liquid  Assets  Fund  offers four  classes of shares and  Municipal  Assets Fund
offers three classes of shares. This Prospectus  describes the "Sweep Shares" of
each Fund.  Sweep  Shares are offered to  customers  of banks.  Sweep Shares are
normally offered through  financial  institutions  providing  automatic  "sweep"
investment programs to their own customers.  The Funds also offer "Trust Shares"
and  "Institutional  Shares" which accrue daily  dividends in the same manner as
Sweep  Shares  except  that  each  class  bears  separate   distribution  and/or
shareholder  servicing fees. "S2 Shares" are also offered by Liquid Assets Fund.
(see "Organization and Shares of the Funds").

LIQUID ASSETS FUND,  ("Liquid  Assets") seeks maximum current income  consistent
with safety of principal and  maintenance of liquidity.  MUNICIPAL  ASSETS FUND,
("Municipal  Assets")  seeks maximum  current  income exempt from federal income
tax,  consistent  with safety of principal and  maintenance of liquidity.  Sweep
Shares are offered  and  redeemed at $1.00 per share under rules which allow the
Funds to use the amortized cost method of valuing the Funds' assets.

AN  INVESTMENT IN SHARES OF THE FUNDS IS NOT INSURED OR GUARANTEED BY THE UNITED
STATES,  BY ANY STATE, OR BY THE FDIC, IS NOT A DEPOSIT OR OTHER OBLIGATION OF A
BANK, OR GUARANTEED BY A BANK, AND INVOLVES INVESTMENT RISKS, INCLUDING POSSIBLE
LOSS OF PRINCIPAL AMOUNT INVESTED.

UNDER  EXTRAORDINARY  CIRCUMSTANCES  THE VALUE OF SHARES MAY VARY FROM $1.00 AND
CONSEQUENTLY,  THERE CAN BE NO ASSURANCE THAT THE FUNDS WILL BE ABLE TO MAINTAIN
A STABLE NET ASSET VALUE OF $1.00 PER SHARE.

This  Prospectus  sets forth basic  information  about each Fund that  investors
should  know  before  investing  and should be  retained  for future  reference.
Statements of Additional  Information (as of the date of this Prospectus)  which
contain  more  detailed  information  about  each Fund have been  filed with the
Securities and Exchange Commission and are hereby incorporated by reference. The
Statements of Additional  Information  are available  free upon request from IMG
Financial Services, Inc., at the address and telephone number indicated above.

THESE  SECURITIES  HAVE NOT BEEN APPROVED OR  DISAPPROVED  BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES  COMMISSION,  NOR HAS THE SECURITIES
AND  EXCHANGE  COMMISSION  OR ANY  STATE  SECURITIES  COMMISSION  PASSED  ON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.

EXPENSE SUMMARY

The expense summary table is provided to assist you in understanding the various
costs and expenses that may be incurred  directly or indirectly as a shareholder
of either  Fund.  There  are no  transaction  fees  imposed  upon the  purchase,
redemption, or exchange of shares.

                                                       LIQUID          MUNICIPAL
                                                       ASSETS           ASSETS
ANNUAL FUND OPERATING EXPENSES (as a percentage of average net assets)
  Management Fees.................................      0.25%            0.25%
  12b-1 Distribution Fees.........................      0.75%            0.50%
  Other Expenses..................................      0.20%            0.40%
  Total Fund Operating Expenses...................      1.20%            1.15%

For the period from  September  1, 1996 through  January 15,  1997,  the Advisor
waived  a  portion  or all of their  fees and  reimbursed  certain  expenses  of
Municipal  Assets.  The waiver  was  terminated  January  15,  1997.  Additional
operating expenses information may be found under "Management and Fees".

EXAMPLE
You  would  pay the  following  expenses  on a $1,000  investment  in each  Fund
assuming,  (1) a (hypothetical) five percent annual return and (2) redemption at
the end of each time period.
                        1 Year       3 Years          5 Years        10 Years
  Liquid Assets          $12           $38              $66             $145
  Municipal Assets       $12           $37              $63             $140

EXPLANATION OF TABLE

THE  FOREGOING  SHOULD  NOT BE  CONSIDERED  A  REPRESENTATION  OF PAST OR FUTURE
EXPENSES OR RATES OF RETURN.  ACTUAL  EXPENSES OR RATES OF RETURN MAY BE MORE OR
LESS THAN THOSE  SHOWN.  The  Expense  Summary  and  Examples do not reflect any
charges that may be imposed by financial institutions on their customers.

The purpose of the foregoing  tables is to assist in  understanding  the various
costs and  expenses  that may be directly or  indirectly  borne by  investors in
Sweep Shares. Certain figures contained in the above tables are based on amounts
incurred  during each Fund's most recent  fiscal year and have been  adjusted as
necessary to reflect current services provider fees and/or  reimbursements.  The
information  in the above tables  relates only to Sweep  Shares.  The Funds also
offer  Trust  Shares and  Institutional  Shares.  S2 Shares are also  offered by
Liquid Assets.  Long-term shareholders may eventually pay more than the economic
equivalent  of the maximum  front-end  sales charge  otherwise  permitted by the
National  Association of Securities Dealers,  Inc. Wire transfers may be used to
transfer  federal funds directly to/from the Funds' custodian bank. A $15.00 fee
may be charged to an  individual  shareholder  account for  redemption  by wire.
Please refer to "Management and Fees" for further information. 

HIGHLIGHTS

The INVESTMENT  OBJECTIVE of Liquid Assets is maximum current income  consistent
with safety of  principal  and  maintenance  of  liquidity.  The Fund invests in
short-term debt  obligations  issued or guaranteed by the U.S.  government,  its
agencies or instrumentalities and repurchase  agreements  collateralized by such
obligations   including,   redeemable   Certificates   backed  by  Farmers  Home
Administration guaranteed loans and primarily, federally insured student loans.

The INVESTMENT  OBJECTIVE of Municipal  Assets is maximum  current income exempt
from federal income tax,  consistent with safety of principal and maintenance of
liquidity.  The Fund  invests  primarily in high  quality  short-term  municipal
securities which mature or have a demand feature exercisable in one year or less
from  the  date  of  acquisition.  See  "Investment  Objectives,   Policies  and
Restrictions".

The NET ASSET  VALUE,  that is, the price at which  shares of the Funds are sold
and redeemed, will be $1.00 per share, except under extraordinary circumstances.
See "Opening an Account -- Share Price".

SHARES OF EITHER FUND MAY BE  PURCHASED at the next  determined  net asset value
per share,  without a sales charge,  with an initial investment of at least $250
and  subsequent  purchases  of at least $25  (subject  to  certain  exceptions).
Purchases may be made by check,  wire,  electronic funds transfer and/or through
Participating Organizations. See "Purchasing Shares".

SHARES MAY BE REDEEMED  at their next  determined  net asset value by  exchange,
check, wire, and/or electronic funds transfer. See "Redeeming Shares".

The ADVISOR of the Funds is Investors  Management Group,  (the "Advisor"),  2203
Grand Avenue,  Des Moines,  Iowa  50312-5338,  a registered  investment  advisor
incorporated in June 1982. See  "Management  and Fees".  The Advisor is also the
transfer agent for the Funds.

The  Funds'  DISTRIBUTOR  is  IMG  Financial  Services,  Inc.,  a  wholly  owned
subsidiary  of the  Advisor.  IMG  Financial  Services,  Inc.,  is a  registered
broker/dealer and was incorporated in May 1992.

The Advisor is entitled to an INVESTMENT  ADVISORY FEE which is calculated daily
and paid  monthly at an annual rate of 0.25 percent of each Fund's net assets up
to $200,000,000, declining to 0.20 percent of average daily net assets in excess
of $600,000,000. For the period from September 1, 1996 through January 15, 1997,
the Advisor voluntarily agreed to waive all of its fee with respect to Municipal
Assets.  This waiver was voluntary and was  terminated on January 15, 1997.  See
"Management and Fees".

DISTRIBUTION  FEES are paid by the Funds to the Distributor and by it to certain
Participating  Organizations pursuant to Rule 12b-1 under the Investment Company
Act of 1940 (the "Act"),  up to a maximum of 0.75  percent of the average  daily
net asset value of all Sweep Shares issued and outstanding for Liquid Assets and
0.50  percent of the  average  daily net assets of all Sweep  Shares  issued and
outstanding for Municipal Assets.

DIVIDENDS are declared  daily and paid monthly (see  "Distributions  and Taxes")
and will be automatically reinvested unless the shareholder elects otherwise.

FINANCIAL HIGHLIGHTS

Effective October 29, 1996, the Funds commenced offering three classes of shares
with differing fee structures,  designated  "Sweep Shares",  Trust Shares",  and
"Institutional Shares". The shares designated Sweep Shares were offered and sold
with  the  same  fee  structure  previously  offered  by  the  Funds.  Financial
Highlights on the following pages gives  information  about the Fund's financial
history on a per share basis for the past ten fiscal  years for the Funds' Sweep
Shares.

The Funds'  fiscal year has been July 1 through  June 30 since their  inception.
The financial information  expresses investment and distribution  information in
terms of a single share outstanding throughout each period as indicated.

The tables  presented for the years 1988 through 1997 have been examined by KPMG
Peat Marwick LLP,  independent  auditors,  whose unqualified report covering the
year ending June 30, 1997, is included in the Annual Report to  shareholders  of
each Fund. The Annual Report is included in each Fund's  Statement of Additional
Information  and will be provided  upon  request to the  address  and  telephone
number  on Page 1 of this  Prospectus  without  charge.  
<TABLE>
<CAPTION>
SELECTED DATA FOR A SHARE OF
EACH FUND OUTSTANDING
THROUGHOUT EACH PERIOD        1997      1996      1995     1994     1993      1992    1991     1990     1989    1988
____________________________________________________________________________________________________________________
<S>                          <C>      <C>      <C>       <C>      <C>      <C>      <C>      <C>     <C>      <C>   
LIQUID ASSETS FUND - SWEEP SHARES
Net Asset Value
Beginning of Period          $1.000   $ 1.000  $ 1.000   $1.000   $ 1.000  $ 1.000  $ 1.000  $1.000  $ 1.000  $1.000

Net Investment Income          .045      .047     .047     .027      .027     .044     .063    .074     .076    .057

Dividends Distributed         (.045)    (.047)   (.047)   (.027)    (.027)   (.044)   (.063)  (.074)   (.076)  (.057)
                             ----------------------------------------------------------------------------------------
Net Asset Value
End of Period                $1.000   $ 1.000  $ 1.000   $1.000   $ 1.000  $ 1.000  $ 1.000  $1.000  $ 1.000  $1.000
                             =======================================================================================

Total Return                  4.46%     4.68%    4.66%    2.66%     2.72%    4.37%    6.31%   7.40%    7.62%   5.74%

Ratio of Expenses to
Average Net Assets            1.20%     1.20%    1.20%    1.18%     1.16%    1.16%    1.15%   1.16%    1.17%   1.15%

Ratio of Net Income to
Average Net Assets            4.46%     4.68%    4.66%    2.66%     2.72%    4.37%    6.31%   7.40%    7.62%   5.74%

Net Assets
End of Period (000 Omitted) $60,663   $179,633 $167,085 $141,018 $123,949  $117,238 $111,405 $104,014 $93,335 $73,525
</TABLE>
On September 25, 1996, the Shareholders approved amendments to the Fund's
Articles of Incorporation to reclassify all outstanding shares as Sweep Shares. 
This reclassification did not effect the existing fee structure.
<TABLE>
<CAPTION>
SELECTED DATA FOR A SHARE OF
EACH FUND OUTSTANDING
THROUGHOUT EACH PERIOD        1997      1996      1995     1994     1993      1992    1991     1990     1989    1988
____________________________________________________________________________________________________________________
<S>                          <C>      <C>      <C>       <C>      <C>      <C>      <C>      <C>     <C>      <C>   
MUNICIPAL ASSETS FUND - SWEEP SHARES
Net Asset Value
Beginning of Period          $1.000   $ 1.000  $ 1.000   $1.000   $ 1.000  $ 1.000  $ 1.000  $1.000  $ 1.000  $1.000

Net Investment Income          .029      .026     .025     .015      .017     .030     .044    .050     .051    .039

Dividends Distributed         (.029)    (.026)   (.025)   (.015)    (.017)   (.030)   (.044)  (.050)   (.051)  (.039)
                             ----------------------------------------------------------------------------------------
Net Asset Value
End of Period                $1.000   $ 1.000  $ 1.000   $1.000   $ 1.000  $ 1.000  $ 1.000  $1.000  $ 1.000  $1.000
                             =======================================================================================

Total Return                  2.90%     2.64%    2.53%    1.53%     1.69%    3.06%    4.40%   4.96%    5.10%   3.94%

Ratio of Expenses to
Average Net Assets*           0.93%     1.48%    1.38%    1.35%     1.35%    1.37%    1.39%   1.63%    1.50%   1.52%

Ratio of Net Income to
Average Net Assets            2.90%     2.64%    2.53%    1.53%     1.69%    3.06%    4.40%   4.96%    5.10%   3.94%

Net Assets
End of Period (000 Omitted) $4,664    $10,146  $16,130  $21,355   $23,764   $29,670  $26,683  $15,077 $12,619 $14,528
</TABLE>
On September 25, 1996, the Shareholders approved amendments to the Fund's
Articles of Incorporation to reclassify all outstanding shares as Sweep Shares.
This reclassification did not effect the existing fee structure.

* During the year ended June 30, 1997, the advisor and distributor voluntarily 
waived certain fees.  Absent this waivers, the ratio of expenses to average 
net assets would have been 1.15 percent.

INVESTMENT  OBJECTIVES, POLICIES AND RESTRICTIONS

LIQUID ASSETS

The investment  objective of Liquid Assets is maximum current income  consistent
with safety of principal and  maintenance of liquidity.  The Fund invests in the
following  money  market  instruments  maturing in 397 days or less from time of
investment, (with certain exceptions):

(1)    Obligations issued or guaranteed by the U.S.  government or any agency or
       instrumentality  thereof. Such securities will include those supported by
       the full faith and credit of the United  States  Treasury or the right of
       the agency or  instrumentality  to borrow from the  Treasury,  as well as
       those   supported   only  by  the  credit  of  the   issuing   agency  or
       instrumentality.

(2)    Repurchase  agreements involving securities in the immediately  foregoing
       categories.  A repurchase  agreement involves the sale of such securities
       to the Fund with the  concurrent  agreement  of the seller to  repurchase
       them at a  specified  time and  price to yield  an  agreed  upon  rate of
       interest.  Repurchase  agreements  may  involve  certain  risks which are
       described in greater detail in the Statement of Additional Information.

(3)    Redeemable    interest-bearing    trust   certificates   ("Student   Loan
       Certificates") issued by the Iowa Student Loan Trust and/or other Student
       Loan Trusts established by the Fund, ("Student Loan Trusts"), created for
       the sole purpose of  purchasing  from banks  (which  qualify as "eligible
       lenders")  federally  insured  student  loans  originated  by banks.  The
       Student Loan Certificates  will have original  maturities of no more than
       397 days but will be redeemable by the Fund at their face amount upon not
       more than five days'  written  notice to the issuing  Student Loan Trust.
       Further  details  concerning  the  Student  Loan  Trusts  and the  Fund's
       investments  in Student Loan  Certificates  are found in the Statement of
       Additional Information.

(4)    Redeemable  interest-bearing ownership certificates ("FmHA Certificates")
       issued  by one or more  guaranteed  loan  trusts  ("FmHA  Trusts"),  each
       created  for the  purpose of  acquiring  participation  interests  in the
       guaranteed portion of Farmer's Home  Administration  ("FmHA")  guaranteed
       loans.  The FmHA  Certificates  will have original  maturities of no more
       than 397 days but will be  redeemable  by the Fund at their  face  amount
       upon not more than five days'  written  notice to the issuing FmHA Trust.
       Further details  concerning the FmHA Trusts and the Fund's  investment in
       FmHA Certificates and FmHA guaranteed loans are found in the Statement of
       Additional Information.

In accordance with procedures  adopted pursuant to Rule 2a-7 under the 1940 Act,
the Fund limits its  investments  to those U.S.  dollar-denominated  instruments
determined  by the Board of Directors to present  minimal  credit risk and which
are "Eligible Securities" as that term is defined by Rule 2a-7. Pursuant to Rule
2a-7,  the Fund  shall not have  invested  more than five  percent  of its total
assets in securities issued by a single issuer.  For additional  requirements of
Rule 2a-7,  see  "Opening  an Account -- Share  Price".  Assets of the Fund will
consist of  securities  with  maturities of 397 days or less at date of purchase
or, if  maturing  beyond 397 days,  will be backed by  Liquidity  and  Servicing
Agreements  or Guaranteed  Funding  Agreements  and will have variable  interest
rates  adjustable  at least  semiannually.  In  determining  whether  particular
variable  rate  investments  backed by Liquidity  and  Servicing  Agreements  or
Guaranteed  Funding  Agreements may be made, the period remaining until maturity
will be deemed to be the longer of the demand notice period  required before the
Fund is  entitled  to  receive  payment  of the  principal  amount or the period
remaining  until  the next  interest  adjustment.  The  dollar-weighted  average
maturity of Fund  investments  will be 90 days or less,  determined  in the same
manner.  While the  underlying  security in a  repurchase  agreement  may have a
maturity of more than 397 days, the repurchase  agreement  itself will terminate
in less than 397 days,  and  typically  within a few days.  The Fund  intends to
invest at least 25 percent of its total  assets in  Student  Loan  Certificates,
and/or FmHA Certificates,  except when such investments are either not available
in  sufficient  quantity or do not carry  yields  competitive  with  alternative
investments.

It is the policy of the Fund that any illiquid securities  (including repurchase
agreements of more than seven days duration) may not constitute,  at the time of
purchase  or at any time,  more than ten  percent  of the value of the total net
assets of the Fund.

As a fundamental policy, the Fund does not intend to concentrate its investments
in any one industry and pursuant to Section  18(f) of the 1940 Act, the Fund may
not issue senior securities.  As a general policy, it is the Fund's intention to
hold investments until they mature.  However, in an effort to increase portfolio
yields the Fund may periodically trade securities to take advantage of perceived
disparities between markets for various short-term money market instruments.  It
is also possible that  redemptions of Fund shares could  necessitate the sale of
portfolio  investments  prior to  maturity  and at times when such sale would be
undesirable because of unfavorable market conditions.

While  investments  by the  Fund  will be  confined  to high  quality  financial
instruments,  the complete  elimination  of risk is not possible.  Under certain
circumstances   described  in  more  detail  in  the   Statement  of  Additional
Information,  the net asset  value of Fund  shares  could  decrease.  It is also
possible  Participating  Banks or borrowers  will default on the  provisions  of
their  agreements  with  the  Fund or that  banks  will  default  on  repurchase
agreements  with the Student Loan Trusts or the FmHA  Trusts,  which could cause
the net asset value per share to decrease.

In light of these various  contingencies,  there can be no  assurances  the Fund
will achieve its investment objectives.

The Fund has adopted a number of investment  policies and restrictions,  some of
which can be changed by the Board of  Directors.  Others may be changed  only by
holders of a majority  of the  outstanding  shares and  include  the  following:
Without shareholder approval the Fund may not: (1) purchase any securities other
than those described  above; (2) invest more than 80 percent of its total assets
in Student Loan Certificates and/or FmHA Certificates; (3) purchase or sell real
estate (other than short-term loans secured by real estate or interests  therein
or loans to companies which invest in or engage in other  activities  related to
real estate), commodities or commodity contracts, interests in oil, gas or other
mineral exploration or development programs;  (4) make short sales of securities
or  maintain  a short  position  or write,  purchase,  or sell  puts  (excluding
repayment and  guarantee  arrangements  on loan  participations  purchased  from
Participating  Banks),  calls,  straddles,  spreads or combinations thereof; (5)
make loans to other  persons,  provided  the Fund may invest up to 80 percent of
its total assets in Student Loan Certificates or FmHA Certificates, as described
in (2) above, and may make the investments and enter into repurchase  agreements
as  described  above;  (6)  invest  in  securities  with  legal  or  contractual
restrictions  on  resale  (except  for  repurchase   agreements,   Student  Loan
Certificates,  and FmHA  Certificates) or for which no ready market exists;  (7)
enter into repurchase agreements if, as a result thereof, more than five percent
of the  Fund's  total  assets  (taken  at  market  value  at the  time  of  such
investment)  would be subject to  repurchase  agreements  maturing  in more than
seven days.

The foregoing investment  restrictions are considered fundamental policies which
cannot be changed without the approval of a "majority" of the Fund's outstanding
voting  securities,  that is, by (a) 67 percent or more of the securities voting
at a special or annual meeting if more than 50 percent of the outstanding shares
of Common Stock are  represented  at such meeting in person or by proxy;  or (b)
more than 50 percent of the  outstanding  Common Stock,  whichever is less.  The
Statement  of  Additional  Information  includes  discussion  of  certain  other
investment  policies  and  restrictions,  some  of  which  are  also  considered
fundamental and may not be changed without shareholder approval.

MUNICIPAL ASSETS

The investment  objective of Municipal  Assets is maximum  current income exempt
from federal income tax,  consistent with safety of principal and maintenance of
liquidity.  The Fund invests in the following types of money market  instruments
maturing in 397 days or less from time of investment (with certain  exceptions),
as defined herein:

(1)    Tax-exempt debt  obligations  issued by state and municipal  governmental
       units and public  authorities  within the United States and participation
       interests therein.  With few exceptions such obligations will be nonrated
       and of  limited  marketability.  However,  they  will be backed by demand
       repurchase  commitments  of the  issuers  thereof  and  irrevocable  bank
       letters  of  credit or  guarantees  (collectively  referred  to herein as
       "Liquidity Agreements").  The Liquidity Agreements will permit the holder
       of the securities to demand payment of the unpaid principal  balance plus
       accrued  interest upon a specified number of days' notice either from the
       issuer  or  by  drawing  on an  irrevocable  bank  letter  of  credit  or
       guarantee.  In addition,  all obligations with maturities longer than 397
       days from date of purchase  will, by their terms,  bear rates of interest
       that are adjusted upward or downward no less frequently than semiannually
       by means of a formula  intended  to reflect  market  changes in  interest
       rates.  Certain  types of industrial  development  bonds issued by public
       bodies  to  finance  the   construction   of  industrial  and  commercial
       facilities and equipment are also purchased.  The Statement of Additional
       Information  contains further details  concerning the Fund's policies and
       procedures with respect to investments in such tax-exempt obligations and
       participation interests.

(2)    High quality  tax-exempt debt  obligations  issued by state and municipal
       governments and by public  authorities,  including issues sold as interim
       financing in anticipation of tax  collections,  revenue  receipts or bond
       sales, and tax-exempt  Project Notes secured by the full faith and credit
       of the United States.  Such  obligations will be purchased only if backed
       by the full  faith and  credit of the  United  States or rated  Aaa,  Aa,
       MIG-1, MIG-2 or Prime-1 by Moody's Investors  Service,  Inc., or AAA, AA,
       or A-1 by Standard & Poor's Corporation.  Nonrated securities may also be
       purchased  if  determined  by the  Fund's  board  of  directors  to be of
       comparable quality to the rated securities in which the Fund may invest.

(3)    Taxable obligations issued or guaranteed by agencies or instrumentalities
       of the U.S.  government  may be acquired from time to time on a temporary
       basis for defensive purposes.

(4)    Repurchase  agreements  involving  securities in the immediate  foregoing
       category.  A repurchase agreement involves the sale of such securities to
       the Fund with the concurrent  agreement of the seller to repurchase  them
       at a specified time and price,  to yield an agreed upon rate of interest.
       Repurchase  agreements  may involve  certain risks which are described in
       greater detail in the Statement of Additional Information.

In accordance with procedures  adopted pursuant to Rule 2a-7 under the 1940 Act,
the Fund limits its  investments  to those U.S.  dollar-denominated  instruments
determined  by the Board of Directors to present  minimal  credit risk and which
are "Eligible Securities" as that term is defined by Rule 2a-7. Pursuant to Rule
2a-7,  the Fund shall not invest more than five  percent of its total  assets in
securities issued by a single issuer. For additional  requirements of Rule 2a-7,
see  "Opening  an Account -- Share  Price".  Assets of the Fund will  consist of
securities  with  maturities  of 397  days or less at date of  purchase  or,  if
maturing beyond 397 days,  securities  which are backed by Liquidity  Agreements
and which have variable  interest rates  adjustable at least  semi-annually  and
upon the  adjustment  of the interest rate the value of the  securities  will be
approximately  equal to par. In  determining  whether  particular  variable rate
investments  backed by Liquidity  Agreements may be made,  the period  remaining
until  maturity  will be deemed to be the  longer of the  demand  notice  period
required before the Fund is entitled to receive payment of the principal  amount
or the period remaining until the next interest adjustment.  The dollar-weighted
average maturity of Fund investments will be 90 days or less,  determined in the
same manner.

Under normal market conditions, the Fund as a matter of fundamental policy, will
invest at least 80 percent of its total net assets in tax-exempt securities, the
interest on which is exempt from federal  income tax,  except to the extent that
some or all of  which  may be  subject  to the  alternative  minimum  tax.  This
fundamental  policy may not be changed without the approval of a majority of the
Fund's outstanding voting securities.

It is the policy of the Fund that any illiquid securities may not constitute, at
the time of purchase  or at  anytime,  more than ten percent of the value of the
total net  assets  of the Fund.  The Fund  does not  intend to  concentrate  its
investments  in any one industry  and pursuant to Section  18(f) of the 1940 Act
may not issue senior securities.

As a general policy,  it is the Fund's intention to hold investments  until they
mature or until immediately  prior to the expiration of an applicable  Liquidity
Agreement.  However,  in an effort to increase  portfolio  yields,  the Fund may
periodically trade securities to take advantage of perceived disparities between
markets for various  short-term  money market  instruments.  It is also possible
that  redemptions  of Fund  shares  could  necessitate  the  sale  of  portfolio
investments  prior to maturity and at times when such sale would be  undesirable
because of unfavorable market conditions.

New issues of tax-exempt  debt  obligations are usually offered on a when-issued
basis with the  securities  to be delivered and paid for  approximately  45 days
following the initial purchase commitment.  The Fund may occasionally enter into
such commitments, subject to certain limitations and procedures discussed in the
Statement of Additional Information.

While  investments  by the  Fund  will be  confined  to  high-quality  financial
instruments,  the complete  elimination  of risk is not possible.  Under certain
circumstances,   described  in  more  detail  in  the  Statement  of  Additional
Information,  the net asset  value of Fund  shares  could  decrease.  It is also
possible an issuer or bank will  default on the  provisions  of their  Liquidity
Agreements,  which  could cause the net asset  value per share to  decrease.  In
light of these various  contingencies,  there can be no assurances the Fund will
achieve its investment objectives.

The Fund has adopted a number of investment  policies and restrictions,  some of
which can be changed by the Board of  Directors.  Others may be changed  only by
holders of a majority  of the  outstanding  shares and  include  the  following:
Without shareholder approval the Fund may not: (1) purchase any securities other
than those described under "Investment  Policy"; (2) invest more than 80 percent
of its total assets in tax-exempt  fixed and variable rate debt  obligations (or
participation  interests  therein) issued by state and local  governmental units
within the United  States which are backed by Liquidity  Agreements;  (3) invest
more  than  five  percent  of its  total  assets  (determined  as of the date of
purchase) in tax-exempt  obligations or participation  interests therein subject
to  Liquidity  Agreements  issued by any one  bank;  (4)  purchase  or sell real
estate,  commodities  or  commodity  contracts,  interests  in oil, gas or other
mineral exploration or development programs;  (5) make short sales of securities
or  maintain  a short  position  or write,  purchase,  or sell  puts  (excluding
Liquidity  Agreements covering certain tax-exempt  obligations  purchased by the
Fund),  calls,  straddles,  spreads or combinations  thereof;  (6) make loans to
other persons,  provided the Fund may make investments and enter into repurchase
agreements  as  described   above;  (7)  invest  in  securities  with  legal  or
contractual  restrictions  on resale  (except for  tax-exempt  debt  obligations
subject to Liquidity  Agreements) or for which no ready market exists; (8) enter
into a Liquidity  Agreement  with any bank  unless such bank is a United  States
bank which has a record,  together with predecessors,  of at least five years of
continuous  operations;  (9) enter into  repurchase  agreements  if, as a result
thereof,  more than five  percent of the Fund's  total  assets  (taken at market
value at the time of such investment) would be subject to repurchase  agreements
maturing in more than seven days; and (10) enter into Liquidity  Agreements with
any bank if five percent or more of the securities of such bank are owned by the
Advisor or by  directors  and  officers  of the Fund or the  Advisor,  or if any
director or officer of the Fund or the Advisor owns more than 1/2 percent of the
voting securities of such bank.

The foregoing investment  restrictions are considered fundamental policies which
cannot be changed without the approval of a "majority" of the Fund's outstanding
voting  securities,  that is, by (1) 67 percent or more of the securities voting
at a special or annual meeting if more than 50 percent of the outstanding shares
of Common Stock are  represented  at such meeting in person or by proxy;  or (2)
more than 50 percent of the  outstanding  Common Stock,  whichever is less.  The
Statement  of  Additional  Information  includes  discussion  of  certain  other
investment  policies  and  restrictions,  some  of  which  are  also  considered
fundamental and may not be changed without shareholder approval.

PERFORMANCE

Performance  of each Fund may be quoted in advertising in terms of current yield
and  effective  yield.  CURRENT  YIELD  refers  to the  income  generated  by an
investment  in  either  Fund over a  seven-day  period,  expressed  as an annual
percentage rate. EFFECTIVE YIELD is calculated similarly but assumes that income
earned  from the  investment  is  reinvested.  Effective  yield will be slightly
higher than  current  yield  because of the  compounding  effect of this assumed
reinvestment.

The current and effective  yields for the seven-day  period ended June 30, 1997,
for Liquid Assets and Municipal  Assets were 4.55 percent and 4.64 percent,  and
3.35 percent and 3.41 percent, respectively.

Performance of the Funds may also be compared to other mutual funds with similar
investment  objectives,  relevant  indices or rankings  prepared by  independent
services or other  financial  publications,  or yields on deposits at  financial
institutions.  Unlike the Funds, deposit accounts at financial  institutions are
generally FDIC insured and do not fluctuate to the extent of the Funds.

Additionally,  Municipal Assets may quote a taxable-equivalent  yield based on a
stated  income  tax  rate.  Please  see  each  Fund's  Statement  of  Additional
Information for further  discussion of the manner in which yields are calculated
and the comparative performance data which may be used.

Of  course,  the  Funds'  yields  are not  fixed  nor is  principal  guaranteed.
Performance  will  fluctuate  and any  quotation  should  not be  considered  as
representative of the future performance of either Fund.

DISTRIBUTIONS AND TAXES

Dividends  from the net income of each Fund are declared  daily on each business
day and paid monthly to holders of record  immediately  before 3:00 p.m. Central
Time. Dividends are automatically reinvested in Sweep Shares unless cash payment
has been  requested.  If a shareholder  redeems the entire amount in his account
during the month,  dividends  credited to the account from the  beginning of the
month through the date of redemption are paid with the redemption proceeds.

Dividends on each class of shares are determined in the same manner and are paid
in the same amounts irrespective of class, except that each class bears separate
distribution and/or shareholder  servicing fees (see "Organization and Shares of
the Funds").

Dividends  declared in October,  November,  or December of any year,  payable to
shareholders  of record on a specified  date in such  months,  will be deemed to
have been received by the  shareholders  and paid by the Funds on December 31 of
such year, in the event that such  dividends are actually paid during January of
the following year.

Each Fund intends to qualify as a regulated  investment  company by distributing
substantially  all of its taxable net income,  including  any  realized  capital
gains,  and thus will not incur any  Federal  income  taxes.  Shareholders  will
receive  taxable  dividend  income,  tax-exempt  dividend  income and/or capital
gains, as the case may be, from  distributions  whether paid in cash or received
in the form of additional shares.

Dividends  derived from interest on federally  tax-exempt debt obligations owned
by Municipal Assets are intended to constitute "exempt-interest dividends" which
are  generally  not Federally  taxable to  shareholders,  although some could be
includable for purposes of the alternative  minimum tax.  Dividends derived from
other interest and the  realization of capital gains are taxable to shareholders
whether or not reinvested.

Municipal  Assets  expenses  will be allocated  between  tax-exempt  and taxable
income in the same proportion as the Fund's tax-exempt income bears to the total
of such exempt  income and its gross  income  (excluding  from gross  income the
excess of capital gains over capital losses).

Promptly after the end of each calendar year,  each  shareholder  will receive a
statement of the Federal  income tax status of all dividends  and  distributions
paid during the year.  This  discussion is only a summary and relates  solely to
Federal tax matters.  Further  discussion of the Federal Income Tax consequences
of an  investment  in the  Fund  is  provided  in the  Statement  of  Additional
Information.  Dividends may also be subject to local taxation.  Shareholders are
encouraged to consult with their personal tax advisors.

ORGANIZATION AND SHARES OF THE FUNDS

The Funds are open-end, diversified management investment companies organized as
Iowa  corporations.  Liquid Assets was  incorporated in June 1982 under the name
Iowa Liquid Assets Fund,  Inc.,  and changed its name to IMG Liquid Assets Fund,
Inc., in October 1987. Municipal Assets was incorporated under the name Iowa Tax
Free Liquid  Assets Fund,  Inc., in January 1983 and changed its name to IMG Tax
Exempt  Liquid Assets Fund,  Inc.,  in October 1987. On September 25, 1996,  the
Funds each increased  authorized capital to five billion shares of Common Stock,
par value $.001 per share,  changed the Fund's  names to Liquid  Assets Fund and
Municipal Assets Fund,  respectively,  and amended their respective  Articles of
Incorporation  to  authorize  the  Boards  of  Directors  to  issue  one or more
additional   classes  of  shares.   Simultaneously,   the  Boards  approved  the
redesignation  of the  existing  shares as "Sweep  Shares"  and the  issuance of
"Trust  Shares" and  "Institutional  Shares".  On February 3, 1997, the Board of
Directors authorized the issuance of "S2 Shares" by Liquid Assets. Management of
the  affairs of each Fund is  legally  vested in its Board of  Directors,  which
meets  periodically  to review  activities  of the Fund and the  Advisor  and to
consider other policy matters pertaining to the Fund.

Sweep  Shares of the Funds  are  described  in this  Prospectus.  Trust  Shares,
Institutional  Shares and S2 Shares are offered in separate  Prospectuses  which
may be  obtained  by  calling  IFS at  1-800-798-1819  or  writing to IFS at the
address on the cover of this  Prospectus.  All shares are offered to  individual
and  institutional  investors  acting on their own  behalf or on behalf of their
customers and bear their pro rata portion of all operating  expenses paid by the
Funds,  except  that Sweep  Shares,  Trust  Shares and S2 Shares  bear  separate
distribution  and/or shareholder  servicing fees.  Institutional  Shares bear no
distribution or shareholder servicing fees.

Each class of shares offers different privileges. Sweep Shares and S2 Shares are
normally offered through  financial  institutions  providing  automatic  "sweep"
investment  programs to their  customers,  and offer a check writing  privilege.
Trust  Shares  are  normally  offered  through  trust  organizations  or  others
providing shareholder services such as establishing and maintaining accounts and
records for their customers who invest in Trust Shares,  assisting  customers in
processing  purchase,  exchange  and  redemption  requests,  and  responding  to
customers'  inquiries  concerning their  investments.  Institutional  Shares are
available  directly  from the  Distributor  only and offer only the Exchange and
Telephone  Transfer  services.  Each  class of shares is  exchangeable  only for
shares of the same class.  Financial  institutions  selling or  servicing  Sweep
Shares,  Trust  Shares and S2 Shares may  receive  different  compensation  with
respect to one class over another.

Shareholders are entitled to one vote for each full share held and proportionate
fractional  votes  for  fractional  shares  held.  Shares of each Fund will vote
together and not by class unless otherwise  required by law or permitted by each
Fund's Board of Directors. All shareholders of each Fund will vote together as a
single class on matters relating to the Fund's  investment  advisory  agreement,
investment objective and fundamental policies.  Only holders of Sweep Shares and
S2 Shares  will vote on  matters  relating  to the  Distribution  Plan for Sweep
Shares  and S2  Shares.  Only  holders  of Trust  Shares  will  vote on  matters
pertaining to the Shareholder Services Plan for Trust Shares.

Shares of the Funds have  non-cumulative  voting  rights and,  accordingly,  the
holders of more than 50 percent of each Fund's outstanding shares  (irrespective
of class) may elect all of the Directors.  Shares have no preemptive  rights and
only such  conversion and exchange  rights as each Fund's Board may grant in its
discretion.  When issued for payments as described  in this  Prospectus,  shares
will be fully paid and nonassessable.

MANAGEMENT AND FEES

Investors Management Group, ("IMG") manages the investments and business affairs
of the  Funds.  IMG is a  registered  Investment  Advisor  located at 2203 Grand
Avenue,  Des Moines,  Iowa 50312-5338.  IMG Financial  Services,  Inc., a wholly
owned subsidiary of IMG, is a registered  broker/dealer and serves as the Funds'
Underwriter.  Since IMG was founded in 1982,  its  principal  business  has been
providing continuous  investment management to pension and profit-sharing plans,
insurance  companies,   public  agencies,   banks,   endowments  and  charitable
institutions,  other mutual funds,  individuals and others. As of June 30, 1997,
IMG had  approximately  $1.6  billion in equity,  fixed  income and money market
assets  under  management.  David W.  Miles and Mark A.  McClurg  are  principal
shareholders of IMG.

The Funds are  managed by Jeffrey  D.  Lorenzen,  CFA,  Managing  Director.  Mr.
Lorenzen is a fixed income strategist and is a member of IMG's Investment Policy
Committee.  Prior to joining IMG in 1992, his experience  includes  serving as a
securities  analyst and corporate  fixed income analyst for The Statesman  Group
from 1989 to 1992.  He received  his Masters of Business  Administration  degree
from Drake  University and his Bachelor of Business  Administration  degree from
the University of Iowa.

Under a management  contract between each Fund and IMG, a fee is paid to IMG for
investment  advisory  services.  Each Fund is responsible  for paying  operating
expenses not assumed by IMG.

The  management  fee for each Fund is  calculated  daily and paid  monthly.  The
maximum  management  fee for each Fund is 0.25  percent of each  Fund's  average
daily net assets up to $200,000,000. The management fee declines to 0.20 percent
of average daily net assets in excess of $600,000,000. For the fiscal year ended
June 30, 1997,  fees paid by Liquid Assets and Municipal  Assets to IMG amounted
to approximately  0.25 percent of Liquid Assets average net assets,  or $428,125
and  approximately  0.15  percent of  Municipal  Assets  average net assets,  or
$51,871.

From time to time, IMG may voluntarily  waive all or a portion of the management
fee and/or absorb certain  expenses of a Fund or class of shares without further
notification  of the  commencement  or termination of such waiver or absorption.
Any such waiver will have the effect of lowering the overall expense ratio for a
Fund or class of shares and  increasing  the overall  yield to investors in that
Fund or class of shares at the time any such amounts are waived and/or absorbed.

For the period  September 1, 1996  through  January 15,  1997,  IMG  voluntarily
waived $26,566 of advisory fees on Municipal  Assets.  Without such waiver,  IMG
would have been  entitled to receive a fee at the annual rate of 0.25 percent of
the average daily net assets of Municipal Assets.

IMG also acts as transfer  agent and dividend  paying  agent for the Funds,  and
maintains all shareholder records. Each Fund pays fees based upon asset size and
number of accounts.

Expenses of operating  each Fund include fees of directors not  affiliated  with
the Investment  Advisor,  custodial  fees,  taxes,  auditing and legal expenses,
Securities and Exchange  Commission fees, state securities  qualification  fees,
costs of preparing and printing  prospectuses  for  regulatory  purposes and for
distribution to shareholders,  certain insurance premiums,  transfer agent fees,
the publishing of reports to  shareholders,  and other expenses  relating to the
operation  of each  Fund  which  are not  expressly  assumed  by the  Investment
Advisor.

Each Fund pays  certain  distribution  fees  related to  marketing,  selling and
distribution  of Sweep Shares  including,  but not limited to,  preparation  and
distribution of promotional materials,  compensation to sales personnel employed
by  the  Distributor  and  for  payment  to  institutions,  including  financial
institutions   ("Participating   Organizations")   who  render   assistance   in
distributing  or  promoting  the sale of each Fund's  Sweep  Shares  under plans
("Plans") adopted pursuant to Rule 12b-1 under the Act. The maximum fees payable
under the Plans are an annual rate of 0.75  percent  for Liquid  Assets and 0.50
percent for Municipal  Assets,  computed monthly on the basis of the average net
asset value of the Sweep Shares issued by each Fund.  For fiscal year ended June
30, 1997,  fees paid under the plan for Liquid Assets and Municipal  Assets were
$1,238,752  and  $50,758,  respectively.  The  Directors  of  each  Fund  review
quarterly a written report of the costs incurred  associated with the Plans. The
Directors  believe that the Plans are in  compliance  with Rule 12b-1 and are in
the best interests of the Funds.

The Glass-Steagall Act and other applicable laws prohibit banks from engaging in
the business of underwriting,  selling, or distributing  securities.  Insofar as
Participating  Organizations  (including banks) are compensated under the Plans,
their only function will be to perform  administrative and shareholder  services
for  their  clients  who  wish  to  invest  in  the  Funds.  If a  Participating
Organization  at a future date is prohibited  from acting in this capacity,  the
shareholder may lose the services  provided by the  Participating  Organization;
however,  it is not  expected  that the  shareholders  would  incur any  adverse
financial  consequences.  It is intended  that none of the services  provided by
such  Participating  Organizations  other than through  registered  brokers will
involve the solicitation or sale of shares of the Funds.

AMCORE Investment Group,  N.A.,  Rockford,  Illinois,  acts as custodian for the
Funds' cash and investments.

OPENING AN ACCOUNT

The Funds require a completed and signed  application (which is attached) at the
time you open  each new  account.  Additional  paperwork  may be  required  from
corporations,  associations and certain fiduciaries.  IF YOU HAVE QUESTIONS CALL
IFS AT 1-800-798-1819 FROM 8:00 A.M. TO 4:30 P.M. CENTRAL TIME.

SHARE PRICE

The shares of each Fund are sold without a sales charge.  The price of one share
is its "net asset value" or NAV (generally $1.00). NAV is computed by adding the
value  of each  Fund's  investments,  plus  cash  and  other  assets,  deducting
liabilities  and then  dividing the result by the number of shares  outstanding.
The NAV of each Funds'  shares is  determined  twice each business day, at 11:00
a.m. Central Time and at the close of the New York Stock Exchange (normally 3:00
p.m. Central Time). The Funds are open for business each day the Federal Reserve
is open.

Your purchase will be processed at the next NAV calculated after your investment
has been  converted  to federal  funds.  If you invest by check,  the Funds must
generally  allow one or more  days for  conversion  into  federal  funds  before
accepting your purchase.

Rule 2a-7 under the Investment  Company Act of 1940 permits the Funds to compute
net asset value per share using the amortized  cost method of valuing  portfolio
securities. As a condition for using the amortized cost method of valuation, the
Board of Directors  established  procedures  to stabilize  each Fund's net asset
value at $1.00 per Share.  These procedures are described in more detail in each
Fund's Statement of Additional Information.

Under the amortized cost method of valuation,  a security is initially valued at
cost on the date of  purchase  and,  thereafter,  any  discount  or  premium  is
amortized  on a  straight-line  basis to maturity,  regardless  of the effect of
fluctuating interest rates on the market value of the security.  U.S. government
obligations,  Student Loan Certificates and FmHA Certificates, which are subject
to mandatory repurchase at their original purchase price, investments in taxable
and tax-exempt  debt  obligations  rated by a recognized  bond rating agency and
regularly traded in the secondary  market,  and nonrated fixed and variable rate
tax-exempt obligations and participation interests therein, not regularly traded
in the secondary  market but subject to Liquidity  Agreements  will be valued at
amortized cost. Other assets are valued at a fair value determined in good faith
by the board of directors of each Fund.

PURCHASING SHARES

Shares of each Fund may be purchased directly from IMG Financial Services, Inc.,
as the  distributor.  Shares may also be  purchased  by  customers  of qualified
banks, savings and loan associations, broker/dealers, investment advisory firms,
and other organizations  ("Participating  Organizations") that have entered into
servicing  agreements with the Distributor.  The  Participating  Organization is
responsible for transmitting purchase orders directly to the Fund's Distributor.
A Participating  Organization  may elect to hold record  ownership of shares for
its  customers  and to  show  beneficial  ownership  of  shares  on the  account
statements it provides to them. In the alternative, a Participating Organization
may elect to establish  its  customers'  accounts of record with IMG as transfer
agent  for  the  Funds.   Generally,   shares  purchased  through  Participating
Organizations  will be held by the Participating  Organization as shareholder of
record.

Shares of each Fund are  offered  without  any  purchase  or  redemption  charge
imposed by the Fund.  The minimum  initial  investment  that may be made in each
Fund is $250. Subsequent investments in each Fund must be made in amounts of not
less than $25,  except where purchases are made through  financial  institutions
providing an automatic  "sweep"  investment  program,  in which case there is no
minimum. Participating organizations may aggregate their customers' purchases to
satisfy the required minimums.

Purchases  may be effected on business  days when the Advisor,  Distributor  and
Custodian  are open for  business.  The Funds  reserve  the right to reject  any
purchase order,  including purchases made with foreign and third party drafts or
checks.

A purchase  order for Sweep  Shares  received and accepted by the Funds by 10:00
a.m. Central Time on a business day is effected at the net asset value per share
calculated  as of 11:00 a.m.  Central  Time,  and  investors  will  receive  the
dividend  declared that day, IF THE CUSTODIAN HAS RECEIVED THE PURCHASE PRICE IN
FEDERAL FUNDS OR OTHER  IMMEDIATELY  AVAILABLE  FUNDS BY 3:00 P.M.  CENTRAL TIME
THAT DAY. A purchase order for Sweep Shares  received  after 10:00 a.m.  Central
Time and prior to 3:00 p.m.  Central Time on a business day for which such funds
have been  received by 3:00 p.m.  Central  Time will be effected as of 3:00 p.m.
Central Time, and will begin to accrue dividends on the following  business day.
If federal funds are not available by 3:00 p.m.  Central Time, the order will be
canceled.  Payment for orders  which are not  accepted or are  canceled  will be
returned after prompt inquiry to the transmitting organization.

While the Funds  themselves do not presently  levy sales,  redemption or account
service charges,  Participating  Organizations  may elect to do so and the Funds
may elect to do so in the future.  Investors should inquire regarding the nature
and costs of services  provided by Participating  Organizations and determine if
such  services  are  desired,  because the costs  thereof will reduce the Funds'
yields to the investor below that obtainable by investing in the Funds directly.

Customers  wishing to purchase shares through their  Participating  Organization
should contact such entity directly for appropriate instructions. (For a list of
the Participating Organizations in your area, CALL IMG FINANCIAL SERVICES, INC.,
AT  1-800-798-1819  OR  515-244-5426.)  Direct  investors may purchase shares in
accordance with the procedures described below, "Purchase Procedures".

Certificates representing Fund shares purchased will not be issued. However, all
purchases are confirmed in writing to the investor and credited to their account
in the shareholder records maintained by the Transfer Agent. Investors will have
the same rights to their shares as if certificates had been issued.  

PURCHASE PROCEDURES

  METHOD                 INITIAL INVESTMENT              ADDITIONAL INVESTMENT
 
 BY MAIL               $250 (minimum)                   $25 (minimum)
                   Please make your check pay-      Please make your check pay-
                   able to the Fund selected and    able to the Fund selected, 
                   mail to the address indicated    with your account number on
                   on the application.              the check and mail to the 
                                                    address printed on your
                                                    account statement.

 BY WIRE           Please call IMG Financial        See instructions below.
                   Services, Inc., for an account
                   number before initial invest-
                   ment at 1-800-798-1819 or
                   515-244-5426.

 Federal  Funds should be wired to:  Federal  Reserve Bank of Chicago for AMCORE
 Investment Group, N.A., Rockford, Illinois, together with the name of the Fund,
 your account number and names.

 Please  note that when  accounts  are opened by wire you must send a  completed
 application at your earliest convenience.  Your application must be received by
 the Fund before any instructions for redemption will be accepted.

 BY ELECTRONIC     Not available for initial        Shareholders who have an
 FUNDS TRANSFER    purchase.                        account with an institution
 (ACH)                                              which is a member of the
                                                    Automated Clearing House,
                                                    may elect to purchase Fund
                                                    shares via electronic funds
                                                    transfer.  Select this 
                                                    service on your application
                                                    or call the Fund.

SHAREHOLDER SERVICES

Some shareholder  services may not be available if shares are purchased  through
Participating   Organizations.   Call   IMG   Financial   Services,   Inc.,   at
1-800-798-1819 for more information.

EXCHANGE  PRIVILEGE.  You may  exchange  Sweep  Shares of either  Fund for Sweep
Shares in the other Fund described in this  Prospectus.  An exchange  involves a
redemption  of the shares of the Fund  being  liquidated  and a purchase  of the
shares of the Fund in which the  redemption  proceeds  are to be  invested.  The
exchange  privilege  is  offered as a  convenience  to  shareholders  and is not
intended to be a means of  speculating  on  short-term  movements in  securities
prices by transactions  involving frequent  purchases and sales of shares.  Each
Fund reserves the right at any time and without prior notice, to suspend, limit,
modify or terminate exchange privileges or their use by individual  shareholders
in order to prevent  transactions  considered to be  disadvantageous to existing
shareholders.

TELEPHONE TRANSFERS.  This service allows you to authorize transfers of money to
purchase or sell shares.  Using  Telephone  Transfer you can move money  between
your bank account and your account in the Funds with one phone call.  Moneys may
be transferred  either by wire or electronic  funds transfer with an institution
which is a member of the Automated Clearing House ("ACH").

Wire transfers may be used to transfer federal funds directly to/from the Funds'
custodian  bank. A $15.00 fee may be charged to your account for  redemptions by
wire.

Allow two (2) days after the call for electronic  funds transfer via ACH to move
moneys between your bank account and your account with either Fund.

For moneys  recently  invested,  allow normal  clearing  time before  redemption
proceeds  are sent to your bank.  In order to change the  financial  institution
account designated to receive redemption proceeds,  it will be necessary to send
a written  request to the Fund with a  signature  guarantee  from a national  or
state bank,  a trust  company or a federal  savings and loan  association,  or a
member  firm of the  New  York,  American,  Boston,  Midwest  or  Pacific  Stock
Exchange.

You can also arrange  SYSTEMATIC  PERIODIC  INVESTMENTS  (minimum $50) into your
Fund account.  Simply select the regular investment schedule you would like when
completing your account  application.  Your bank account will  automatically  be
debited to purchase shares of the Fund you select. You will receive confirmation
of each transaction.

Your  bank must be a member of ACH and you must  have a  checking  or  NOW/Money
Market Deposit account to use electronic funds transfer or systematic investing.
Please allow 20 days after receipt of your application to activate the Telephone
Transfer capability.

STATEMENTS  AND REPORTS.  You will  receive a statement of your account  listing
every  transaction  that affects your share balance no less than once per month.
At least twice a year you will receive the  financial  statements of the Fund in
which you have invested with a summary of that Fund's portfolio  composition and
performance.  Each Fund's Annual Report is reported on by the Funds' independent
auditors, KPMG Peat Marwick LLP.

REDEEMING SHARES

Shareholders may request  redemption of their shares at any time. Shares will be
redeemed at their net asset value as next determined after a redemption  request
in good order is received by the Fund's Distributor.  Redemption orders received
and accepted by the Distributor before 10:00 a.m. Central Time on a business day
will be redeemed as of 11:00 a.m.  Central Time and will earn dividends  through
the previous day; proceeds normally will be sent electronically the same day (or
mailed by check the next  business  day) to the  organization  that  placed  the
redemption  order in good form.  Redemption  orders  received  after  10:00 a.m.
Central Time or on a non-business  day will be redeemed as of 3:00 p.m.  Central
Time or at the next  determined net asset value and earn  dividends  through the
date the redemption request was received;  proceeds will be sent  electronically
on the  next  business  day (or  mailed  by  check on the  second  business  day
thereafter).  While the Funds use their best efforts to maintain their net asset
value per share at $1.00,  the proceeds paid upon redemption may be more or less
than the amount originally invested.

If you purchase  shares  through a  Participating  Organization,  you may redeem
shares  in  accordance  with  that  Organization's  rules  regarding  redemption
requests.   Direct  shareholders  may  redeem  shares  in  accordance  with  the
procedures described under "How to Redeem Shares".

The Funds intend to pay redemption  proceeds  within two business days and in no
event will  payment be made later than seven days after  receipt of a redemption
request in good order. Payments to investors who request to redeem shares within
a few days after a purchase paid for by check may be delayed until the Funds can
verify the check has been collected.

The Funds  reserve the right to suspend  redemptions  or to postpone the payment
therefore  when:  (a) trading on the New York Stock  Exchange is  restricted  as
determined by the Securities and Exchange Commission,  or the Exchange is closed
for other than customary  weekend and holiday  closings;  (b) the Securities and
Exchange  Commission  has  permitted  such  suspension;  or (c) an  emergency as
determined by the  Securities  and Exchange  Commission  exists,  making sale of
portfolio  securities  or  valuations  of the Funds'  net assets not  reasonably
practicable.

A  shareholder  may not reduce  the value of their  account to less than $100 by
writing checks.  The check writing privilege is not available when purchases are
made through a financial  institution  providing an automatic "sweep" investment
program.  The Funds and the  Custodian  reserve the right to terminate the check
writing service or to institute charges for the service.

If an investor's account drops below $250 due to redemptions,  the Funds reserve
the right to redeem any  remaining  shares if after 30 days'  notice  additional
investments to bring the account value to $250 are not made.

HOW TO REDEEM SHARES

 BY MAIL--                        Send a "letter of instruction": a letter
 TO: 2203 GRAND AVENUE            specifying the name of the Fund, the number
     DES MOINES, IA 50312-5338    of shares to be sold, your name, your account 
                                  number, and the additional requirements 
                                  listed below that apply to your particular
                                  account.

 TYPE OF REGISTRATION                   REQUIREMENTS
 _____________________________    _____________________________________________
 Individual, Joint Tenants,       Letter of instruction signed by all persons
 Sole Proprietorship, Custodial   required sign for the account, exactly as it
 (Uniform Gifts to or Transfers   is registered, accompanied by signature
 To Minors Act), General          guarantee(s).
 Partners

 Corporation, Association         Letter of instruction and a corporate
                                  resolutiona signed by person(s) authorized to
                                  act on the account, accompanied by signature 
                                  guarantee(s).

 Trust                            A letter of instruction signed by the 
                                  Trustee(s) (as Trustee), with a signature
                                  guarantee. (If the Trustee's name is not 
                                  registered on your account, also provide a 
                                  copy of the trust document, certified within
                                  the last 60 days.)

 If you do not fall into any of these registration  categories (e.g., Executors,
 Administrators,   Conservators   or   Guardians)   please   call  for   further
 instructions.

 A  signature  guarantee  is  designed  to  protect  you  and the  Fund  against
 fraudulent  transactions  by  unauthorized  persons.  A signature  guarantee is
 required for all persons registered on an account. A signature guarantee may be
 obtained from an eligible guarantor  institution,  as defined by the Securities
 and Exchange  Commission.  These institutions  include banks,  savings and loan
 associations, credit unions, brokerage firms, and others. The words, "SIGNATURE
 GUARANTEED"  must be stamped or typed near each  person's  signature and appear
 with the printed name,  title,  and signature of an officer and the name of the
 guarantor institution.  PLEASE NOTE THAT A NOTARY PUBLIC STAMP OR SEAL IS NOT A
 SIGNATURE GUARANTEE.

 BY CHECK--                       You must have applied for the check writing 
 (minimum $250                    feature on your account application.  You may 
 maximum $100,000)                redeem provided that the signatures you 
                                  designated are on the check.  (There is no 
                                  charge for this service and you may write an 
                                  unlimited number of checks.)
________________________________________________________________________________

                FOR ALL OPTIONS BELOW, PLEASE CALL 1-800-798-1819
________________________________________________________________________________

 BY EXCHANGE--                    You must meet the minimum investment require-
                                  ment of the other fund.  You can only ex-
                                  change between accounts with identical names,
                                  addresses, and taxpayer identification 
                                  numbers.

 BY ELECTRONIC FUNDS              You must have applied for the Telephone
 TRANSFER (ACH) OR WIRE--         Transfer feature on your application.  Allow 
                                  two days via ACH.  Call before 10:00 a.m. for
                                  same day wire.  $15.00 fee for bank wires.
<PAGE>
TABLE OF CONTENTS
     Expense Summary of Sweep Shares..........................................2
     Highlights...............................................................3
     Financial Highlights.....................................................4
     Investment Objectives, Policies and Restrictions.........................7
     Liquid Assets........................................................... 7
     Municipal Assets.........................................................9
     Performance.............................................................12
     Distributions and Taxes.................................................13
     Organization and Shares of the Funds....................................14
     Management and Fees.....................................................15
     Opening an Account......................................................16
         Share Price.........................................................17
         Purchasing Shares...................................................17
     Shareholder Services....................................................19
     Redeeming Shares........................................................21

NO SALESMAN,  OR OTHER PERSON, HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO
MAKE ANY  REPRESENTATIONS,  OTHER THAN THOSE  CONTAINED IN THIS  PROSPECTUS,  IN
CONNECTION  WITH THE OFFER  CONTAINED IN THIS  PROSPECTUS AND, IF GIVEN OR MADE,
SUCH OTHER INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN
AUTHORIZED BY THE FUNDS OR BY IMG FINANCIAL SERVICES,  INC. THIS PROSPECTUS DOES
NOT  CONSTITUTE  AN OFFERING BY IMG  FINANCIAL  SERVICES,  INC., IN ANY STATE IN
WHICH SUCH OFFERING MAY NOT LAWFULLY BE MADE.
<PAGE>
LIQUID ASSETS FUND                                                    S2 SHARES
MUNICIPAL ASSETS FUND                                              SWEEP SHARES

                 2203 Grand Avenue, Des Moines, Iowa 50312-5338

IMG FINANCIAL SERVICES, INC......................................1-800-798-1819
                                                                   515-244-5426
________________________________________________________________________________

PROSPECTUS                                                   SEPTEMBER 30, 1997
________________________________________________________________________________

Liquid  Assets  Fund  and  Municipal  Assets  Fund,  each  of  these  a  "Fund",
(collectively,  the "Funds") are money  market  mutual funds  designed to enable
investors to meet short-term  goals.  Investors choose whichever Fund best suits
their needs and may, without charge,  exchange Funds as their investment outlook
or goals change.

Liquid  Assets  Fund  offers four  classes of shares and  Municipal  Assets Fund
offers three  classes of shares.  This  Prospectus  describes the "S2 Shares" of
Liquid Assets Fund and "Sweep Shares" of Municipal  Assets Fund,  (collectively,
the  "Shares").  Sweep  Shares and S2 are  normally  offered  through  financial
institutions  providing  automatic  "sweep"  investment  programs  to their  own
customers.  The Funds also offer "Trust Shares" and "Institutional Shares" which
accrue daily  dividends in the same manner as Sweep Shares and S2 Shares  except
that each class bears separate  distribution  and/or shareholder  servicing fees
(see "Organization and Shares of the Funds").

LIQUID ASSETS FUND,  ("Liquid  Assets") seeks maximum current income  consistent
with safety of principal and  maintenance of liquidity.  MUNICIPAL  ASSETS FUND,
("Municipal  Assets")  seeks maximum  current  income exempt from federal income
tax,  consistent with safety of principal and  maintenance of liquidity.  Shares
are offered and redeemed at $1.00 per share under rules which allow the Funds to
use the amortized cost method of valuing the Funds' assets.

AN  INVESTMENT IN SHARES OF THE FUNDS IS NOT INSURED OR GUARANTEED BY THE UNITED
STATES,  BY ANY STATE,  OR BY THE FDIC, IS NOT A DEPOSIT OR OTHER  OBLIGATION OF
ANY BANK, OR  GUARANTEED BY A BANK,  AND INVOLVES  INVESTMENT  RISKS,  INCLUDING
POSSIBLE LOSS OF PRINCIPAL AMOUNT INVESTED.

UNDER  EXTRAORDINARY  CIRCUMSTANCES  THE VALUE OF SHARES MAY VARY FROM $1.00 AND
CONSEQUENTLY,  THERE CAN BE NO ASSURANCE THAT THE FUNDS WILL BE ABLE TO MAINTAIN
A STABLE NET ASSET VALUE OF $1.00 PER SHARE.

This  Prospectus  sets forth basic  information  about each Fund that  investors
should  know  before  investing  and should be  retained  for future  reference.
Statements of Additional  Information (as of the date of this Prospectus)  which
contain  more  detailed  information  about  each Fund have been  filed with the
Securities and Exchange Commission and are hereby incorporated by reference. The
Statements of Additional  Information  are available  free upon request from IMG
Financial Services, Inc., at the address and telephone number indicated above.

THESE  SECURITIES  HAVE NOT BEEN APPROVED OR  DISAPPROVED  BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES  COMMISSION,  NOR HAS THE SECURITIES
AND  EXCHANGE  COMMISSION  OR ANY  STATE  SECURITIES  COMMISSION  PASSED  ON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.

EXPENSE SUMMARY

The expense summary table is provided to assist you in understanding the various
costs and expenses that may be incurred  directly or indirectly as a shareholder
of either  Fund.  There  are no  transaction  fees  imposed  upon the  purchase,
redemption, or exchange of shares.

                                                         LIQUID       MUNICIPAL
                                                         ASSETS        ASSETS
ANNUAL FUND OPERATING EXPENSES (as a percentage of average net assets)
  Management Fees.................................        0.25%         0.25%
  12b-1 Distribution Fees.........................        0.50%         0.50%
  Other Expenses..................................        0.20%         0.40%
  Total Fund Operating Expenses...................        0.95%         1.15%

For the period from September 1, 1996 through  January 15, 1997, the Advisor and
Distributor  waived a  portion  or all of  their  fees  and  reimbursed  certain
expenses  of Liquid  Assets and  Municipal  Assets.  The  waiver was  terminated
January 15, 1997.  Additional  operating expenses information may be found under
"Management and Fees".

EXAMPLE
You  would  pay the  following  expenses  on a $1,000  investment  in each  Fund
assuming,  (1) a (hypothetical) five percent annual return and (2) redemption at
the end of each time period.

                          1 Year        3 Years         5 Years        10 Years
  Liquid Assets            $10            $30             $53             $117
  Municipal Assets         $12            $37             $63             $140

EXPLANATION OF TABLE

THE  FOREGOING  SHOULD  NOT BE  CONSIDERED  A  REPRESENTATION  OF PAST OR FUTURE
EXPENSES OR RATES OF RETURN.  ACTUAL  EXPENSES OR RATES OF RETURN MAY BE MORE OR
LESS THAN THOSE  SHOWN.  The  Expense  Summary  and  Examples do not reflect any
charges that may be imposed by financial institutions on their customers.

The purpose of the foregoing  tables is to assist in  understanding  the various
costs and  expenses  that may be directly or  indirectly  borne by  investors in
Shares.  Certain  figures  contained  in the above  tables  are based on amounts
incurred  during each Fund's most recent  fiscal year and have been  adjusted as
necessary to reflect current services provider fees and/or  reimbursements.  The
information  in the above tables  relates  only to Shares.  The Funds also offer
Trust Shares and Institutional Shares. Long-term shareholders may eventually pay
more  than  the  economic  equivalent  of the  maximum  front-end  sales  charge
otherwise permitted by the National Association of Securities Dealers, Inc. Wire
transfers  may be used to transfer  federal  funds  directly  to/from the Funds'
custodian bank. A $15.00 fee may be charged to an individual shareholder account
for  redemption  by wire.  Please  refer to  "Management  and Fees" for  further
information. 

HIGHLIGHTS

The INVESTMENT  OBJECTIVE of Liquid Assets is maximum current income  consistent
with safety of  principal  and  maintenance  of  liquidity.  The Fund invests in
short-term debt  obligations  issued or guaranteed by the U.S.  government,  its
agencies or instrumentalities and repurchase  agreements  collateralized by such
obligations   including,   redeemable   Certificates   backed  by  Farmers  Home
Administration guaranteed loans and primarily, federally insured student loans.

The INVESTMENT  OBJECTIVE of Municipal  Assets is maximum  current income exempt
from federal income tax,  consistent with safety of principal and maintenance of
liquidity.  The Fund  invests  primarily in high  quality  short-term  municipal
securities which mature or have a demand feature exercisable in one year or less
from  the  date  of  acquisition.  See  "Investment  Objectives,   Policies  and
Restrictions".

The NET ASSET  VALUE,  that is, the price at which  shares of the Funds are sold
and redeemed, will be $1.00 per share, except under extraordinary circumstances.
See "Opening an Account -- Share Price".

SHARES OF EITHER FUND MAY BE  PURCHASED at the next  determined  net asset value
per share,  without a sales charge,  with an initial investment of at least $250
and  subsequent  purchases  of at least $25  (subject  to  certain  exceptions).
Purchases may be made by check,  wire,  electronic funds transfer and/or through
Participating Organizations. See "Purchasing Shares".

SHARES MAY BE REDEEMED  at their next  determined  net asset value by  exchange,
check, wire, and/or electronic funds transfer. See "Redeeming Shares".

The ADVISOR of the Funds is Investors  Management Group,  (the "Advisor"),  2203
Grand Avenue,  Des Moines,  Iowa  50312-5338,  a registered  investment  advisor
incorporated in June 1982. See  "Management  and Fees".  The Advisor is also the
transfer agent for the Funds.

The  Funds'  DISTRIBUTOR  is  IMG  Financial  Services,  Inc.,  a  wholly  owned
subsidiary  of the  Advisor.  IMG  Financial  Services,  Inc.,  is a  registered
broker/dealer and was incorporated in May 1992.

The Advisor is entitled to an INVESTMENT  ADVISORY FEE which is calculated daily
and paid  monthly at an annual rate of 0.25 percent of each Fund's net assets up
to $200,000,000, declining to 0.20 percent of average daily net assets in excess
of $600,000,000. For the period from September 1, 1996 through January 15, 1997,
the Advisor voluntarily agreed to waive all of its fee with respect to Municipal
Assets.  This waiver was voluntary and was  terminated on January 15, 1997.  See
"Management and Fees".

DISTRIBUTION  FEES are paid by the Funds to the Distributor and by it to certain
Participating  Organizations pursuant to Rule 12b-1 under the Investment Company
Act of 1940 (the "Act"),  up to a maximum of 0.50  percent of the average  daily
net assets of all Shares issued and outstanding for the Funds.

DIVIDENDS are declared  daily and paid monthly (see  "Distributions  and Taxes")
and will be automatically reinvested unless the shareholder elects otherwise.

FINANCIAL HIGHLIGHTS

Effective October 29, 1996, the Funds commenced offering three classes of shares
with differing fee structures,  designated  "Sweep Shares",  Trust Shares",  and
"Institutional Shares". The shares designated Sweep Shares were offered and sold
with the same fee structure as the single class of shares previously  offered by
the Funds. S2 Shares were first issued February 27, 1997.  Financial  Highlights
on the following pages gives information about the Fund's financial history on a
per share basis for the past ten fiscal years.

The Funds'  fiscal year has been July 1 through  June 30 since their  inception.
The financial information  expresses investment and distribution  information in
terms of a single share outstanding throughout each period as indicated.

The tables  presented for the years 1988 through 1997 have been examined by KPMG
Peat Marwick LLP,  independent  auditors,  whose unqualified report covering the
year ending June 30, 1997, is included in the Annual Report to  shareholders  of
each Fund. The Annual Report is included in each Fund's  Statement of Additional
Information  and will be provided  upon  request to the  address  and  telephone
number on Page 1 of this Prospectus without charge.

SELECTED DATA FOR A SHARE OF
EACH FUND OUTSTANDING
THROUGHOUT THE PERIOD         1997
__________________________________
LIQUID ASSETS FUND-S2 SHARES
Net Asset Value
Beginning of Period           $1.000

Net Investment Income           .048

Dividends Distributed          (.048)
                              -------
Net Asset Value
End of Period                 $1.000
                              ======

Total Return                   4.79%

Ratio of Expenses to
Average Net Assets*            0.85%

Ratio of Net Income to
Average Net Assets             4.79%

Net Assets
End of Period (000 Omitted)   $1,773

* During the year ended June 30, 1997, the distributor voluntarily waived 
certain fees.  Absent this waiver, the ratio of expenses to average net assets 
would have been 0.95 percent.

<TABLE>
<CAPTION>
SELECTED DATA FOR A SHARE OF
EACH FUND OUTSTANDING
THROUGHOUT EACH PERIOD        1997      1996      1995     1994     1993      1992    1991     1990     1989    1988
_____________________________________________________________________________________________________________________
<S>                          <C>      <C>      <C>       <C>      <C>      <C>      <C>      <C>     <C>      <C>   
MUNICIPAL ASSETS FUND - SWEEP SHARES
Net Asset Value
Beginning of Period          $1.000   $ 1.000  $ 1.000   $1.000   $ 1.000  $ 1.000  $ 1.000  $1.000  $ 1.000  $1.000

Net Investment Income          .029      .026     .025     .015      .017     .030     .044    .050     .051    .039

Dividends Distributed         (.029)    (.026)   (.025)   (.015)    (.017)   (.030)   (.044)  (.050)   (.051)  (.039)
                             ----------------------------------------------------------------------------------------
Net Asset Value
End of Period                $1.000   $ 1.000  $ 1.000   $1.000   $ 1.000  $ 1.000  $ 1.000  $1.000  $ 1.000  $1.000
                             =======================================================================================

Total Return                  2.90%     2.64%    2.53%    1.53%     1.69%    3.06%    4.40%   4.96%    5.10%   3.94%

Ratio of Expenses to
Average Net Assets*           0.93%     1.48%    1.38%    1.35%     1.35%    1.37%    1.39%   1.63%    1.50%   1.52%

Ratio of Net Income to
Average Net Assets            2.90%     2.64%    2.53%    1.53%     1.69%    3.06%    4.40%   4.96%    5.10%   3.94%

Net Assets
End of Period (000 Omitted) $ 4,664   $10,146  $16,130  $21,355   $23,764   $29,670  $26,683  $15,077 $12,619 $14,528
</TABLE>
* During the year ended June 30, 1997, the advisor and distributor 
voluntarily waived certain expenses.  Absent these waivers, the ratio of 
expenses to average net assets would have been 1.15 percent.

INVESTMENT OBJECTIVES, POLICIES AND RESTRICTIONS

LIQUID ASSETS

The investment  objective of Liquid Assets is maximum current income  consistent
with safety of principal and  maintenance of liquidity.  The Fund invests in the
following  money  market  instruments  maturing in 397 days or less from time of
investment, (with certain exceptions):

(1)    Obligations issued or guaranteed by the U.S.  government or any agency or
       instrumentality  thereof. Such securities will include those supported by
       the full faith and credit of the United  States  Treasury or the right of
       the agency or  instrumentality  to borrow from the  Treasury,  as well as
       those   supported   only  by  the  credit  of  the   issuing   agency  or
       instrumentality.

(2)    Repurchase  agreements involving securities in the immediately  foregoing
       categories.  A repurchase  agreement involves the sale of such securities
       to the Fund with the  concurrent  agreement  of the seller to  repurchase
       them at a  specified  time and  price to yield  an  agreed  upon  rate of
       interest.  Repurchase  agreements  may  involve  certain  risks which are
       described in greater detail in the Statement of Additional Information.

(3)    Redeemable    interest-bearing    trust   certificates   ("Student   Loan
       Certificates") issued by the Iowa Student Loan Trust and/or other Student
       Loan Trusts established by the Fund, ("Student Loan Trusts"), created for
       the sole purpose of  purchasing  from banks  (which  qualify as "eligible
       lenders")  federally  insured  student  loans  originated  by banks.  The
       Student Loan Certificates  will have original  maturities of no more than
       397 days but will be redeemable by the Fund at their face amount upon not
       more than five days'  written  notice to the issuing  Student Loan Trust.
       Further  details  concerning  the  Student  Loan  Trusts  and the  Fund's
       investments  in Student Loan  Certificates  are found in the Statement of
       Additional Information.

(4)    Redeemable  interest-bearing ownership certificates ("FmHA Certificates")
       issued  by one or more  guaranteed  loan  trusts  ("FmHA  Trusts"),  each
       created  for the  purpose of  acquiring  participation  interests  in the
       guaranteed portion of Farmer's Home  Administration  ("FmHA")  guaranteed
       loans.  The FmHA  Certificates  will have original  maturities of no more
       than 397 days but will be  redeemable  by the Fund at their  face  amount
       upon not more than five days'  written  notice to the issuing FmHA Trust.
       Further details  concerning the FmHA Trusts and the Fund's  investment in
       FmHA Certificates and FmHA guaranteed loans are found in the Statement of
       Additional Information.

In accordance with procedures  adopted pursuant to Rule 2a-7 under the 1940 Act,
the Fund limits its  investments  to those U.S.  dollar-denominated  instruments
determined  by the Board of Directors to present  minimal  credit risk and which
are "Eligible Securities" as that term is defined by Rule 2a-7. Pursuant to Rule
2a-7,  the Fund  shall not have  invested  more than five  percent  of its total
assets in securities issued by a single issuer.  For additional  requirements of
Rule 2a-7,  see  "Opening  an Account -- Share  Price".  Assets of the Fund will
consist of  securities  with  maturities of 397 days or less at date of purchase
or, if  maturing  beyond 397 days,  will be backed by  Liquidity  and  Servicing
Agreements  or Guaranteed  Funding  Agreements  and will have variable  interest
rates  adjustable  at least  semiannually.  In  determining  whether  particular
variable  rate  investments  backed by Liquidity  and  Servicing  Agreements  or
Guaranteed  Funding  Agreements may be made, the period remaining until maturity
will be deemed to be the longer of the demand notice period  required before the
Fund is  entitled  to  receive  payment  of the  principal  amount or the period
remaining  until  the next  interest  adjustment.  The  dollar-weighted  average
maturity of Fund  investments  will be 90 days or less,  determined  in the same
manner.  While the  underlying  security in a  repurchase  agreement  may have a
maturity of more than 397 days, the repurchase  agreement  itself will terminate
in less than 397 days,  and  typically  within a few days.  The Fund  intends to
invest at least 25 percent of its total  assets in  Student  Loan  Certificates,
and/or FmHA Certificates,  except when such investments are either not available
in  sufficient  quantity or do not carry  yields  competitive  with  alternative
investments.

It is the policy of the Fund that any illiquid securities  (including repurchase
agreements of more than seven days duration) may not constitute,  at the time of
purchase  or at any time,  more than ten  percent  of the value of the total net
assets of the Fund.

As a fundamental policy, the Fund does not intend to concentrate its investments
in any one industry and pursuant to Section  18(f) of the 1940 Act, the Fund may
not issue senior securities.  As a general policy, it is the Fund's intention to
hold investments until they mature.  However, in an effort to increase portfolio
yields the Fund may periodically trade securities to take advantage of perceived
disparities between markets for various short-term money market instruments.  It
is also possible that  redemptions of Fund shares could  necessitate the sale of
portfolio  investments  prior to  maturity  and at times when such sale would be
undesirable because of unfavorable market conditions.

While  investments  by the  Fund  will be  confined  to high  quality  financial
instruments,  the complete  elimination  of risk is not possible.  Under certain
circumstances   described  in  more  detail  in  the   Statement  of  Additional
Information,  the net asset  value of Fund  shares  could  decrease.  It is also
possible  Participating  Banks or borrowers  will default on the  provisions  of
their  agreements  with  the  Fund or that  banks  will  default  on  repurchase
agreements  with the Student Loan Trusts or the FmHA  Trusts,  which could cause
the net asset value per share to decrease.

In light of these various  contingencies,  there can be no  assurances  the Fund
will achieve its investment objectives.

The Fund has adopted a number of investment  policies and restrictions,  some of
which can be changed by the Board of  Directors.  Others may be changed  only by
holders of a majority  of the  outstanding  shares and  include  the  following:
Without shareholder approval the Fund may not: (1) purchase any securities other
than those described  above; (2) invest more than 80 percent of its total assets
in Student Loan Certificates and/or FmHA Certificates; (3) purchase or sell real
estate (other than short-term loans secured by real estate or interests  therein
or loans to companies which invest in or engage in other  activities  related to
real estate), commodities or commodity contracts, interests in oil, gas or other
mineral exploration or development programs;  (4) make short sales of securities
or  maintain  a short  position  or write,  purchase,  or sell  puts  (excluding
repayment and  guarantee  arrangements  on loan  participations  purchased  from
Participating  Banks),  calls,  straddles,  spreads or combinations thereof; (5)
make loans to other  persons,  provided  the Fund may invest up to 80 percent of
its total assets in Student Loan Certificates or FmHA Certificates, as described
in (2) above, and may make the investments and enter into repurchase  agreements
as  described  above;  (6)  invest  in  securities  with  legal  or  contractual
restrictions  on  resale  (except  for  repurchase   agreements,   Student  Loan
Certificates,  and FmHA  Certificates) or for which no ready market exists;  (7)
enter into repurchase agreements if, as a result thereof, more than five percent
of the  Fund's  total  assets  (taken  at  market  value  at the  time  of  such
investment)  would be subject to  repurchase  agreements  maturing  in more than
seven days.

The foregoing investment  restrictions are considered fundamental policies which
cannot be changed without the approval of a "majority" of the Fund's outstanding
voting  securities,  that is, by (a) 67 percent or more of the securities voting
at a special or annual meeting if more than 50 percent of the outstanding shares
of Common Stock are  represented  at such meeting in person or by proxy;  or (b)
more than 50 percent of the  outstanding  Common Stock,  whichever is less.  The
Statement  of  Additional  Information  includes  discussion  of  certain  other
investment  policies  and  restrictions,  some  of  which  are  also  considered
fundamental and may not be changed without shareholder approval.

MUNICIPAL ASSETS

The investment  objective of Municipal  Assets is maximum  current income exempt
from federal income tax,  consistent with safety of principal and maintenance of
liquidity.  The Fund invests in the following types of money market  instruments
maturing in 397 days or less from time of investment (with certain  exceptions),
as defined herein:

(1)    Tax-exempt debt  obligations  issued by state and municipal  governmental
       units and public  authorities  within the United States and participation
       interests therein.  With few exceptions such obligations will be nonrated
       and of  limited  marketability.  However,  they  will be backed by demand
       repurchase  commitments  of the  issuers  thereof  and  irrevocable  bank
       letters  of  credit or  guarantees  (collectively  referred  to herein as
       "Liquidity Agreements").  The Liquidity Agreements will permit the holder
       of the securities to demand payment of the unpaid principal  balance plus
       accrued  interest upon a specified number of days' notice either from the
       issuer  or  by  drawing  on an  irrevocable  bank  letter  of  credit  or
       guarantee.  In addition,  all obligations with maturities longer than 397
       days from date of purchase  will, by their terms,  bear rates of interest
       that are adjusted upward or downward no less frequently than semiannually
       by means of a formula  intended  to reflect  market  changes in  interest
       rates.  Certain  types of industrial  development  bonds issued by public
       bodies  to  finance  the   construction   of  industrial  and  commercial
       facilities and equipment are also purchased.  The Statement of Additional
       Information  contains further details  concerning the Fund's policies and
       procedures with respect to investments in such tax-exempt obligations and
       participation interests.

(2)    High quality  tax-exempt debt  obligations  issued by state and municipal
       governments and by public  authorities,  including issues sold as interim
       financing in anticipation of tax  collections,  revenue  receipts or bond
       sales, and tax-exempt  Project Notes secured by the full faith and credit
       of the United States.  Such  obligations will be purchased only if backed
       by the full  faith and  credit of the  United  States or rated  Aaa,  Aa,
       MIG-1, MIG-2 or Prime-1 by Moody's Investors  Service,  Inc., or AAA, AA,
       or A-1 by Standard & Poor's Corporation.  Nonrated securities may also be
       purchased  if  determined  by the  Fund's  board  of  directors  to be of
       comparable quality to the rated securities in which the Fund may invest.

(3)    Taxable obligations issued or guaranteed by agencies or instrumentalities
       of the U.S.  government  may be acquired from time to time on a temporary
       basis for defensive purposes.

(4)    Repurchase  agreements  involving  securities in the immediate  foregoing
       category.  A repurchase agreement involves the sale of such securities to
       the Fund with the concurrent  agreement of the seller to repurchase  them
       at a specified time and price,  to yield an agreed upon rate of interest.
       Repurchase  agreements  may involve  certain risks which are described in
       greater detail in the Statement of Additional Information.

In accordance with procedures  adopted pursuant to Rule 2a-7 under the 1940 Act,
the Fund limits its  investments  to those U.S.  dollar-denominated  instruments
determined  by the Board of Directors to present  minimal  credit risk and which
are "Eligible Securities" as that term is defined by Rule 2a-7. Pursuant to Rule
2a-7,  the Fund shall not invest more than five  percent of its total  assets in
securities issued by a single issuer. For additional  requirements of Rule 2a-7,
see  "Opening  an Account -- Share  Price".  Assets of the Fund will  consist of
securities  with  maturities  of 397  days or less at date of  purchase  or,  if
maturing beyond 397 days,  securities  which are backed by Liquidity  Agreements
and which have variable  interest rates  adjustable at least  semi-annually  and
upon the  adjustment  of the interest rate the value of the  securities  will be
approximately  equal to par. In  determining  whether  particular  variable rate
investments  backed by Liquidity  Agreements may be made,  the period  remaining
until  maturity  will be deemed to be the  longer of the  demand  notice  period
required before the Fund is entitled to receive payment of the principal  amount
or the period remaining until the next interest adjustment.  The dollar-weighted
average maturity of Fund investments will be 90 days or less,  determined in the
same manner.

Under normal market conditions, the Fund as a matter of fundamental policy, will
invest at least 80 percent of its total net assets in tax-exempt securities, the
interest on which is exempt from federal  income tax,  except to the extent that
some or all of  which  may be  subject  to the  alternative  minimum  tax.  This
fundamental  policy may not be changed without the approval of a majority of the
Fund's outstanding voting securities.

It is the policy of the Fund that any illiquid securities may not constitute, at
the time of purchase  or at  anytime,  more than ten percent of the value of the
total net  assets  of the Fund.  The Fund  does not  intend to  concentrate  its
investments  in any one industry  and pursuant to Section  18(f) of the 1940 Act
may not issue senior securities.

As a general policy,  it is the Fund's intention to hold investments  until they
mature or until immediately  prior to the expiration of an applicable  Liquidity
Agreement.  However,  in an effort to increase  portfolio  yields,  the Fund may
periodically trade securities to take advantage of perceived disparities between
markets for various  short-term  money market  instruments.  It is also possible
that  redemptions  of Fund  shares  could  necessitate  the  sale  of  portfolio
investments  prior to maturity and at times when such sale would be  undesirable
because of unfavorable market conditions.

New issues of tax-exempt  debt  obligations are usually offered on a when-issued
basis with the  securities  to be delivered and paid for  approximately  45 days
following the initial purchase commitment.  The Fund may occasionally enter into
such commitments, subject to certain limitations and procedures discussed in the
Statement of Additional Information.

While  investments  by the  Fund  will be  confined  to  high-quality  financial
instruments,  the complete  elimination  of risk is not possible.  Under certain
circumstances,   described  in  more  detail  in  the  Statement  of  Additional
Information,  the net asset  value of Fund  shares  could  decrease.  It is also
possible an issuer or bank will  default on the  provisions  of their  Liquidity
Agreements,  which  could cause the net asset  value per share to  decrease.  In
light of these various  contingencies,  there can be no assurances the Fund will
achieve its investment objectives.

The Fund has adopted a number of investment  policies and restrictions,  some of
which can be changed by the Board of  Directors.  Others may be changed  only by
holders of a majority  of the  outstanding  shares and  include  the  following:
Without shareholder approval the Fund may not: (1) purchase any securities other
than those described under "Investment  Policy"; (2) invest more than 80 percent
of its total assets in tax-exempt  fixed and variable rate debt  obligations (or
participation  interests  therein) issued by state and local  governmental units
within the United  States which are backed by Liquidity  Agreements;  (3) invest
more  than  five  percent  of its  total  assets  (determined  as of the date of
purchase) in tax-exempt  obligations or participation  interests therein subject
to  Liquidity  Agreements  issued by any one  bank;  (4)  purchase  or sell real
estate,  commodities  or  commodity  contracts,  interests  in oil, gas or other
mineral exploration or development programs;  (5) make short sales of securities
or  maintain  a short  position  or write,  purchase,  or sell  puts  (excluding
Liquidity  Agreements covering certain tax-exempt  obligations  purchased by the
Fund),  calls,  straddles,  spreads or combinations  thereof;  (6) make loans to
other persons,  provided the Fund may make investments and enter into repurchase
agreements  as  described   above;  (7)  invest  in  securities  with  legal  or
contractual  restrictions  on resale  (except for  tax-exempt  debt  obligations
subject to Liquidity  Agreements) or for which no ready market exists; (8) enter
into a Liquidity  Agreement  with any bank  unless such bank is a United  States
bank which has a record,  together with predecessors,  of at least five years of
continuous  operations;  (9) enter into  repurchase  agreements  if, as a result
thereof,  more than five  percent of the Fund's  total  assets  (taken at market
value at the time of such investment) would be subject to repurchase  agreements
maturing in more than seven days; and (10) enter into Liquidity  Agreements with
any bank if five percent or more of the securities of such bank are owned by the
Advisor or by  directors  and  officers  of the Fund or the  Advisor,  or if any
director or officer of the Fund or the Advisor owns more than 1/2 percent of the
voting securities of such bank.

The foregoing investment  restrictions are considered fundamental policies which
cannot be changed without the approval of a "majority" of the Fund's outstanding
voting  securities,  that is, by (1) 67 percent or more of the securities voting
at a special or annual meeting if more than 50 percent of the outstanding shares
of Common Stock are  represented  at such meeting in person or by proxy;  or (2)
more than 50 percent of the  outstanding  Common Stock,  whichever is less.  The
Statement  of  Additional  Information  includes  discussion  of  certain  other
investment  policies  and  restrictions,  some  of  which  are  also  considered
fundamental and may not be changed without shareholder approval.

PERFORMANCE

Performance  of each Fund may be quoted in advertising in terms of current yield
and  effective  yield.  CURRENT  YIELD  refers  to the  income  generated  by an
investment  in  either  Fund over a  seven-day  period,  expressed  as an annual
percentage rate. EFFECTIVE YIELD is calculated similarly but assumes that income
earned  from the  investment  is  reinvested.  Effective  yield will be slightly
higher than  current  yield  because of the  compounding  effect of this assumed
reinvestment.

The current and effective  yields for the seven-day  period ended June 30, 1997,
for Liquid Assets and Municipal  Assets were 4.90 percent and 5.01 percent,  and
3.35 percent and 3.41 percent, respectively.

Performance of the Funds may also be compared to other mutual funds with similar
investment  objectives,  relevant  indices or rankings  prepared by  independent
services or other  financial  publications,  or yields on deposits at  financial
institutions.  Unlike the Funds, deposit accounts at financial  institutions are
generally FDIC insured and do not fluctuate to the extent of the Funds.

Additionally,  Municipal Assets may quote a taxable-equivalent  yield based on a
stated  income  tax  rate.  Please  see  each  Fund's  Statement  of  Additional
Information for further  discussion of the manner in which yields are calculated
and the comparative performance data which may be used.

Of  course,  the  Funds'  yields  are not  fixed  nor is  principal  guaranteed.
Performance  will  fluctuate  and any  quotation  should  not be  considered  as
representative of the future performance of either Fund.

DISTRIBUTIONS AND TAXES

Dividends  from the net income of each Fund are declared  daily on each business
day and paid monthly to holders of record  immediately  before 3:00 p.m. Central
Time. Dividends are automatically reinvested in Sweep Shares unless cash payment
has been  requested.  If a shareholder  redeems the entire amount in his account
during the month,  dividends  credited to the account from the  beginning of the
month through the date of redemption are paid with the redemption proceeds.

Dividends on each class of shares are determined in the same manner and are paid
in the same amounts irrespective of class, except that each class bears separate
distribution and/or shareholder  servicing fees (see "Organization and Shares of
the Funds").

Dividends  declared in October,  November,  or December of any year,  payable to
shareholders  of record on a specified  date in such  months,  will be deemed to
have been received by the  shareholders  and paid by the Funds on December 31 of
such year, in the event that such  dividends are actually paid during January of
the following year.

Each Fund intends to qualify as a regulated  investment  company by distributing
substantially  all of its taxable net income,  including  any  realized  capital
gains,  and thus will not incur any  Federal  income  taxes.  Shareholders  will
receive  taxable  dividend  income,  tax-exempt  dividend  income and/or capital
gains, as the case may be, from  distributions  whether paid in cash or received
in the form of additional shares.

Dividends  derived from interest on federally  tax-exempt debt obligations owned
by Municipal Assets are intended to constitute "exempt-interest dividends" which
are  generally  not Federally  taxable to  shareholders,  although some could be
includable for purposes of the alternative  minimum tax.  Dividends derived from
other interest and the  realization of capital gains are taxable to shareholders
whether or not reinvested.

Municipal  Assets  expenses  will be allocated  between  tax-exempt  and taxable
income in the same proportion as the Fund's tax-exempt income bears to the total
of such exempt  income and its gross  income  (excluding  from gross  income the
excess of capital gains over capital losses).

Promptly after the end of each calendar year,  each  shareholder  will receive a
statement of the Federal  income tax status of all dividends  and  distributions
paid during the year.  This  discussion is only a summary and relates  solely to
Federal tax matters.  Further  discussion of the Federal Income Tax consequences
of an  investment  in the  Fund  is  provided  in the  Statement  of  Additional
Information.  Dividends may also be subject to local taxation.  Shareholders are
encouraged to consult with their personal tax advisors.

ORGANIZATION AND SHARES OF THE FUNDS

The Funds are open-end, diversified management investment companies organized as
Iowa  corporations.  Liquid Assets was  incorporated in June 1982 under the name
Iowa Liquid Assets Fund,  Inc.,  and changed its name to IMG Liquid Assets Fund,
Inc., in October 1987. Municipal Assets was incorporated under the name Iowa Tax
Free Liquid  Assets Fund,  Inc., in January 1983 and changed its name to IMG Tax
Exempt  Liquid Assets Fund,  Inc.,  in October 1987. On September 25, 1996,  the
Funds each increased  authorized capital to five billion shares of Common Stock,
par value $.001 per share,  changed the Fund's  names to Liquid  Assets Fund and
Municipal Assets Fund,  respectively,  and amended their respective  Articles of
Incorporation  to  authorize  the  Boards  of  Directors  to  issue  one or more
additional   classes  of  shares.   Simultaneously,   the  Boards  approved  the
redesignation  of the  existing  shares as "Sweep  Shares"  and the  issuance of
"Trust  Shares" and  "Institutional  Shares".  On February 3, 1997, the Board of
Directors authorized the issuance of "S2 Shares" by Liquid Assets. Management of
the  affairs of each Fund is  legally  vested in its Board of  Directors,  which
meets  periodically  to review  activities  of the Fund and the  Advisor  and to
consider other policy matters pertaining to the Fund.

S2 Shares of Liquid Assets and Sweep Shares of Municipal Assets are described in
this Prospectus.  Trust Shares and Institutional  Shares are offered in separate
Prospectuses  which may be obtained by calling IFS at  1-800-798-1819 or writing
to IFS at the address on the cover of this Prospectus. All shares are offered to
individual and  institutional  investors acting on their own behalf or on behalf
of their  customers  and bear their pro rata portion of all  operating  expenses
paid  by  the  Funds,   except  that  Shares  and  Trust  Shares  bear  separate
distribution  and/or shareholder  servicing fees.  Institutional  Shares bear no
distribution or shareholder servicing fees.

Each class of shares offers  different  privileges.  Shares are normally offered
through financial  institutions  providing automatic "sweep" investment programs
to their  customers,  and offer a check  writing  privilege.  Trust  Shares  are
normally offered through trust  organizations  or others  providing  shareholder
services such as  establishing  and  maintaining  accounts and records for their
customers  who  invest  in  Trust  Shares,  assisting  customers  in  processing
purchase,  exchange  and  redemption  requests,  and  responding  to  customers'
inquiries  concerning  their  investments.  Institutional  Shares are  available
directly  from the  Distributor  only and offer only the Exchange and  Telephone
Transfer  services.  Each class of shares is exchangeable only for shares of the
same class.  Financial institutions selling or servicing Shares and Trust Shares
may receive different compensation with respect to one class over another.

Shareholders are entitled to one vote for each full share held and proportionate
fractional  votes  for  fractional  shares  held.  Shares of each Fund will vote
together and not by class unless otherwise  required by law or permitted by each
Fund's Board of Directors. All shareholders of each Fund will vote together as a
single class on matters relating to the Fund's  investment  advisory  agreement,
investment objective and fundamental policies.  Only holders of Shares will vote
on matters relating to the Distribution  Plan for Shares.  Only holders of Trust
Shares will vote on matters  pertaining  to the  Shareholder  Services  Plan for
Trust Shares.

Shares of the Funds have  non-cumulative  voting  rights and,  accordingly,  the
holders of more than 50 percent of each Fund's outstanding shares  (irrespective
of class) may elect all of the Directors.  Shares have no preemptive  rights and
only such  conversion and exchange  rights as each Fund's Board may grant in its
discretion.  When issued for payments as described  in this  Prospectus,  shares
will be fully paid and nonassessable.

MANAGEMENT AND FEES

Investors Management Group, ("IMG") manages the investments and business affairs
of the  Funds.  IMG is a  registered  Investment  Advisor  located at 2203 Grand
Avenue,  Des Moines,  Iowa 50312-5338.  IMG Financial  Services,  Inc., a wholly
owned subsidiary of IMG, is a registered  broker/dealer and serves as the Funds'
Underwriter.  Since IMG was founded in 1982,  its  principal  business  has been
providing continuous  investment management to pension and profit-sharing plans,
insurance  companies,   public  agencies,   banks,   endowments  and  charitable
institutions,  other mutual funds,  individuals and others. As of June 30, 1997,
IMG had  approximately  $1.6  billion in equity,  fixed  income and money market
assets  under  management.  David W.  Miles and Mark A.  McClurg  are  principal
shareholders of IMG.

The Funds are  managed by Jeffrey  D.  Lorenzen,  CFA,  Managing  Director.  Mr.
Lorenzen is a fixed income strategist and is a member of IMG's Investment Policy
Committee.  Prior to joining IMG in 1992, his experience  includes  serving as a
securities  analyst and corporate  fixed income analyst for The Statesman  Group
from 1989 to 1992.  He received  his Masters of Business  Administration  degree
from Drake  University and his Bachelor of Business  Administration  degree from
the University of Iowa.

Under a management  contract between each Fund and IMG, a fee is paid to IMG for
investment  advisory  services.  Each Fund is responsible  for paying  operating
expenses not assumed by IMG.

The  management  fee for each Fund is  calculated  daily and paid  monthly.  The
maximum  management  fee for each Fund is 0.25  percent of each  Fund's  average
daily net assets up to $200,000,000. The management fee declines to 0.20 percent
of average daily net assets in excess of $600,000,000. For the fiscal year ended
June 30, 1997,  fees paid by Liquid Assets and Municipal  Assets to IMG amounted
to approximately  0.25 percent of Liquid Assets average net assets,  or $428,125
and  approximately  0.15  percent of  Municipal  Assets  average net assets,  or
$51,871.

From time to time, IMG may voluntarily  waive all or a portion of the management
fee and/or absorb certain  expenses of a Fund or class of shares without further
notification  of the  commencement  or termination of such waiver or absorption.
Any such waiver will have the effect of lowering the overall expense ratio for a
Fund or class of shares and  increasing  the overall  yield to investors in that
Fund or class of shares at the time any such amounts are waived and/or absorbed.

For the period  September 1, 1996  through  January 15,  1997,  IMG  voluntarily
waived $26,566 of advisory fees on Municipal  Assets.  Without such waiver,  IMG
would have been  entitled to receive a fee at the annual rate of 0.25 percent of
the average daily net assets of Municipal Assets.

IMG also acts as transfer  agent and dividend  paying  agent for the Funds,  and
maintains all shareholder records. Each Fund pays fees based upon asset size and
number of accounts.

Expenses of operating  each Fund include fees of directors not  affiliated  with
the Investment  Advisor,  custodial  fees,  taxes,  auditing and legal expenses,
Securities and Exchange  Commission fees, state securities  qualification  fees,
costs of preparing and printing  prospectuses  for  regulatory  purposes and for
distribution to shareholders,  certain insurance premiums,  transfer agent fees,
the publishing of reports to  shareholders,  and other expenses  relating to the
operation  of each  Fund  which  are not  expressly  assumed  by the  Investment
Advisor.

Each Fund pays  certain  distribution  fees  related to  marketing,  selling and
distribution  of  Shares  including,   but  not  limited  to,   preparation  and
distribution of promotional materials,  compensation to sales personnel employed
by  the  Distributor  and  for  payment  to  institutions,  including  financial
institutions   ("Participating   Organizations")   who  render   assistance   in
distributing  or promoting the sale of each Fund's Shares under plans  ("Plans")
adopted  pursuant to Rule 12b-1 under the Act. The fees payable  under the Plans
are an annual rate of 0.50 percent for each Fund,  computed monthly on the basis
of the  average net asset  value of the Shares  issued by each Fund.  For fiscal
year  ended  June 30,  1997,  fees paid  under the plan for  Liquid  Assets  and
Municipal  Assets were  $1,238,752 and $50,758,  respectively.  The Directors of
each Fund review  quarterly a written  report of the costs  incurred  associated
with the Plans. The Directors believe that the Plans are in compliance with Rule
12b-1 and are in the best interests of the Funds.

The Glass-Steagall Act and other applicable laws prohibit banks from engaging in
the business of underwriting,  selling, or distributing  securities.  Insofar as
Participating  Organizations  (including banks) are compensated under the Plans,
their only function will be to perform  administrative and shareholder  services
for  their  clients  who  wish  to  invest  in  the  Funds.  If a  Participating
Organization  at a future date is prohibited  from acting in this capacity,  the
shareholder may lose the services  provided by the  Participating  Organization;
however,  it is not  expected  that the  shareholders  would  incur any  adverse
financial  consequences.  It is intended  that none of the services  provided by
such  Participating  Organizations  other than through  registered  brokers will
involve the solicitation or sale of shares of the Funds.

AMCORE Investment Group,  N.A.,  Rockford,  Illinois,  acts as custodian for the
Funds' cash and investments.

OPENING AN ACCOUNT

The Funds require a completed and signed  application (which is attached) at the
time you open  each new  account.  Additional  paperwork  may be  required  from
corporations,  associations and certain fiduciaries.  IF YOU HAVE QUESTIONS CALL
IFS AT 1-800-798-1819 FROM 8:00 A.M. TO 4:30 P.M. CENTRAL TIME.

SHARE PRICE

The shares of each Fund are sold without a sales charge.  The price of one share
is its "net asset value" or NAV (generally $1.00). NAV is computed by adding the
value  of each  Fund's  investments,  plus  cash  and  other  assets,  deducting
liabilities  and then  dividing the result by the number of shares  outstanding.
The NAV of each Funds'  shares is  determined  twice each business day, at 11:00
a.m. Central Time and at the close of the New York Stock Exchange (normally 3:00
p.m. Central Time). The Funds are open for business each day the Federal Reserve
is open.

Your purchase will be processed at the next NAV calculated after your investment
has been  converted  to federal  funds.  If you invest by check,  the Funds must
generally  allow one or more  days for  conversion  into  federal  funds  before
accepting your purchase.

Rule 2a-7 under the Investment  Company Act of 1940 permits the Funds to compute
net asset value per share using the amortized  cost method of valuing  portfolio
securities. As a condition for using the amortized cost method of valuation, the
Board of Directors  established  procedures  to stabilize  each Fund's net asset
value at $1.00 per Share.  These procedures are described in more detail in each
Fund's Statement of Additional Information.

Under the amortized cost method of valuation,  a security is initially valued at
cost on the date of  purchase  and,  thereafter,  any  discount  or  premium  is
amortized  on a  straight-line  basis to maturity,  regardless  of the effect of
fluctuating interest rates on the market value of the security.  U.S. government
obligations,  Student Loan Certificates and FmHA Certificates, which are subject
to mandatory repurchase at their original purchase price, investments in taxable
and tax-exempt  debt  obligations  rated by a recognized  bond rating agency and
regularly traded in the secondary  market,  and nonrated fixed and variable rate
tax-exempt obligations and participation interests therein, not regularly traded
in the secondary  market but subject to Liquidity  Agreements  will be valued at
amortized cost. Other assets are valued at a fair value determined in good faith
by the board of directors of each Fund.

PURCHASING SHARES

Shares of each Fund may be purchased directly from IMG Financial Services, Inc.,
as the  distributor.  Shares may also be  purchased  by  customers  of qualified
banks, savings and loan associations, broker/dealers, investment advisory firms,
and other organizations  ("Participating  Organizations") that have entered into
servicing  agreements with the Distributor.  The  Participating  Organization is
responsible for transmitting purchase orders directly to the Fund's Distributor.
A Participating  Organization  may elect to hold record  ownership of shares for
its  customers  and to  show  beneficial  ownership  of  shares  on the  account
statements it provides to them. In the alternative, a Participating Organization
may elect to establish  its  customers'  accounts of record with IMG as transfer
agent  for  the  Funds.   Generally,   shares  purchased  through  Participating
Organizations  will be held by the Participating  Organization as shareholder of
record.

Shares of each Fund are  offered  without  any  purchase  or  redemption  charge
imposed by the Fund.  The minimum  initial  investment  that may be made in each
Fund is $250. Subsequent investments in each Fund must be made in amounts of not
less than $25,  except where purchases are made through  financial  institutions
providing an automatic  "sweep"  investment  program,  in which case there is no
minimum. Participating organizations may aggregate their customers' purchases to
satisfy the required minimums.

Purchases  may be effected on business  days when the Advisor,  Distributor  and
Custodian  are open for  business.  The Funds  reserve  the right to reject  any
purchase order,  including purchases made with foreign and third party drafts or
checks.

A purchase  order for Shares  received  and  accepted by the Funds by 10:00 a.m.
Central  Time on a business  day is  effected  at the net asset  value per share
calculated  as of 11:00 a.m.  Central  Time,  and  investors  will  receive  the
dividend  declared that day, IF THE CUSTODIAN HAS RECEIVED THE PURCHASE PRICE IN
FEDERAL FUNDS OR OTHER  IMMEDIATELY  AVAILABLE  FUNDS BY 3:00 P.M.  CENTRAL TIME
THAT DAY. A purchase order for Shares received after 10:00 a.m. Central Time and
prior to 3:00 p.m. Central Time on a business day for which such funds have been
received by 3:00 p.m.  Central  Time will be  effected  as of 3:00 p.m.  Central
Time,  and will begin to accrue  dividends  on the  following  business  day. If
federal  funds are not available by 3:00 p.m.  Central  Time,  the order will be
canceled.  Payment for orders  which are not  accepted or are  canceled  will be
returned after prompt inquiry to the transmitting organization.

While the Funds  themselves do not presently  levy sales,  redemption or account
service charges,  Participating  Organizations  may elect to do so and the Funds
may elect to do so in the future.  Investors should inquire regarding the nature
and costs of services  provided by Participating  Organizations and determine if
such  services  are  desired,  because the costs  thereof will reduce the Funds'
yields to the investor below that obtainable by investing in the Funds directly.

Customers  wishing to purchase shares through their  Participating  Organization
should contact such entity directly for appropriate instructions. (For a list of
the Participating Organizations in your area, call IMG FINANCIAL SERVICES, INC.,
AT  1-800-798-1819  OR  515-244-5426.)  Direct  investors may purchase shares in
accordance with the procedures described below, "Purchase Procedures".

Certificates representing Fund shares purchased will not be issued. However, all
purchases are confirmed in writing to the investor and credited to their account
in the shareholder records maintained by the Transfer Agent. Investors will have
the same rights to their shares as if certificates had been issued.  

PURCHASE PROCEDURES

   METHOD            INITIAL INVESTMENT              ADDITIONAL INVESTMENT
 
 BY MAIL              $250 (minimum)                   $25 (minimum)
                   Please make your check pay-      Please make your check pay-
                   able to the Fund selected and    able to the Fund selected, 
                   mail to the address indicated    with your account number on
                   on the application.              the check and mail to the 
                                                    address printed on your
                                                    account statement.

 BY WIRE           Please call IMG Financial        See instructions below.
                   Services, Inc., for an account
                   number before initial invest-
                   ment at 1-800-798-1819 or
                   515-244-5426.

 Federal  Funds should be wired to:  Federal  Reserve Bank of Chicago for AMCORE
 Investment Group, N.A., Rockford, Illinois, together with the name of the Fund,
 your account number and names.

 Please  note that when  accounts  are opened by wire you must send a  completed
 application at your earliest convenience.  Your application must be received by
 the Fund before any instructions for redemption will be accepted.
________________________________________________________________________________

 BY ELECTRONIC     Not available for initial        Shareholders who have an
 FUNDS TRANSFER    purchase.                        account with an institution
 (ACH)                                              which is a member of the
                                                    Automated Clearing House,
                                                    may elect to purchase Fund
                                                    shares via electronic funds
                                                    transfer.  Select this
                                                    service on your application
                                                    or call the Fund.


SHAREHOLDER SERVICES

Some shareholder  services may not be available if shares are purchased  through
Participating   Organizations.   Call   IMG   Financial   Services,   Inc.,   at
1-800-798-1819 for more information.

EXCHANGE  PRIVILEGE.  You may  exchange  Shares of either Fund for Shares in the
other Fund described in this  Prospectus.  An exchange  involves a redemption of
the shares of the Fund being liquidated and a purchase of the shares of the Fund
in which the redemption  proceeds are to be invested.  The exchange privilege is
offered as a convenience  to  shareholders  and is not intended to be a means of
speculating  on  short-term  movements  in  securities  prices  by  transactions
involving frequent  purchases and sales of shares.  Each Fund reserves the right
at any time and without prior  notice,  to suspend,  limit,  modify or terminate
exchange privileges or their use by individual  shareholders in order to prevent
transactions considered to be disadvantageous to existing shareholders.

TELEPHONE TRANSFERS.  This service allows you to authorize transfers of money to
purchase or sell shares.  Using  Telephone  Transfer you can move money  between
your bank account and your account in the Funds with one phone call.  Moneys may
be transferred  either by wire or electronic  funds transfer with an institution
which is a member of the Automated Clearing House ("ACH").

Wire transfers may be used to transfer federal funds directly to/from the Funds'
custodian  bank. A $15.00 fee may be charged to your account for  redemptions by
wire.

Allow two (2) days after the call for electronic  funds transfer via ACH to move
moneys between your bank account and your account with either Fund.

For moneys  recently  invested,  allow normal  clearing  time before  redemption
proceeds  are sent to your bank.  In order to change the  financial  institution
account designated to receive redemption proceeds,  it will be necessary to send
a written  request to the Fund with a  signature  guarantee  from a national  or
state bank,  a trust  company or a federal  savings and loan  association,  or a
member  firm of the  New  York,  American,  Boston,  Midwest  or  Pacific  Stock
Exchange.

You can also arrange  SYSTEMATIC  PERIODIC  INVESTMENTS  (minimum $50) into your
Fund account.  Simply select the regular investment schedule you would like when
completing your account  application.  Your bank account will  automatically  be
debited to purchase shares of the Fund you select. You will receive confirmation
of each transaction.

Your  bank must be a member of ACH and you must  have a  checking  or  NOW/Money
Market Deposit account to use electronic funds transfer or systematic investing.
Please allow 20 days after receipt of your application to activate the Telephone
Transfer capability.

STATEMENTS  AND REPORTS.  You will  receive a statement of your account  listing
every  transaction  that affects your share balance no less than once per month.
At least twice a year you will receive the  financial  statements of the Fund in
which you have invested with a summary of that Fund's portfolio  composition and
performance.  Each Fund's Annual Report is reported on by the Funds' independent
auditors, KPMG Peat Marwick LLP.

REDEEMING SHARES

Shareholders may request  redemption of their shares at any time. Shares will be
redeemed at their net asset value as next determined after a redemption  request
in good order is received by the Fund's Distributor.  Redemption orders received
and accepted by the Distributor before 10:00 a.m. Central Time on a business day
will be redeemed as of 11:00 a.m.  Central Time and will earn dividends  through
the previous day; proceeds normally will be sent electronically the same day (or
mailed by check the next  business  day) to the  organization  that  placed  the
redemption  order in good form.  Redemption  orders  received  after  10:00 a.m.
Central Time or on a non-business  day will be redeemed as of 3:00 p.m.  Central
Time or at the next  determined net asset value and earn  dividends  through the
date the redemption request was received;  proceeds will be sent  electronically
on the  next  business  day (or  mailed  by  check on the  second  business  day
thereafter).  While the Funds use their best efforts to maintain their net asset
value per share at $1.00,  the proceeds paid upon redemption may be more or less
than the amount originally invested.

If you purchase  shares  through a  Participating  Organization,  you may redeem
shares  in  accordance  with  that  Organization's  rules  regarding  redemption
requests.   Direct  shareholders  may  redeem  shares  in  accordance  with  the
procedures described under "How to Redeem Shares".

The Funds intend to pay redemption  proceeds  within two business days and in no
event will  payment be made later than seven days after  receipt of a redemption
request in good order. Payments to investors who request to redeem shares within
a few days after a purchase paid for by check may be delayed until the Funds can
verify the check has been collected.

The Funds  reserve the right to suspend  redemptions  or to postpone the payment
therefore  when:  (a) trading on the New York Stock  Exchange is  restricted  as
determined by the Securities and Exchange Commission,  or the Exchange is closed
for other than customary  weekend and holiday  closings;  (b) the Securities and
Exchange  Commission  has  permitted  such  suspension;  or (c) an  emergency as
determined by the  Securities  and Exchange  Commission  exists,  making sale of
portfolio  securities  or  valuations  of the Funds'  net assets not  reasonably
practicable.

A  shareholder  may not reduce  the value of their  account to less than $100 by
writing checks.  The check writing privilege is not available when purchases are
made through a financial  institution  providing an automatic "sweep" investment
program.  The Funds and the  Custodian  reserve the right to terminate the check
writing service or to institute charges for the service.

If an investor's account drops below $250 due to redemptions,  the Funds reserve
the right to redeem any  remaining  shares if after 30 days'  notice  additional
investments to bring the account value to $250 are not made.

HOW TO REDEEM SHARES

 BY MAIL--                            Send a "letter of instruction": a letter
 TO: 2203 GRAND AVENUE                specifying the name of the Fund, the 
     DES MOINES, IA 50312-5338        number of shares to be sold, your name, 
                                      your account number, and the additional 
                                      requirements listed below that apply to
                                      your particular account.

 TYPE OF REGISTRATION                 REQUIREMENTS
 _______________________________      __________________________________________
 Individual, Joint Tenants, Sole      Letter of instruction signed by all
 Proprietorship, Custodial            persons required to sign for the account,
 (Uniform Gifts or Transfers          exactly as it is registered, accompanied 
 To Minors Act), General Partners     by signature guarantee(s).

 Corporation, Association             Letter of instruction and a corporate 
                                      resolution signed by person(s) authorized 
                                      to act on the account, accompanied by 
                                      signature guarantee(s).

 Trust                                A letter of instruction signed by the 
                                      Trustee(s) (as Trustee), with a signature
                                      guarantee. (If the Trustee's name is not 
                                      registered on your account, also provide
                                      a copy of the trust document, certified 
                                      within the last 60 days.)

 If you do not fall into any of these registration  categories (e.g., Executors,
 Administrators,   Conservators   or   Guardians)   please   call  for   further
 instructions.

 A  signature  guarantee  is  designed  to  protect  you  and the  Fund  against
 fraudulent  transactions  by  unauthorized  persons.  A signature  guarantee is
 required for all persons registered on an account. A signature guarantee may be
 obtained from an eligible guarantor  institution,  as defined by the Securities
 and Exchange  Commission.  These institutions  include banks,  savings and loan
 associations, credit unions, brokerage firms, and others. The words, "SIGNATURE
 GUARANTEED"  must be stamped or typed near each  person's  signature and appear
 with the printed name,  title,  and signature of an officer and the name of the
 guarantor institution.  PLEASE NOTE THAT A NOTARY PUBLIC STAMP OR SEAL IS NOT A
 SIGNATURE GUARANTEE.

 BY CHECK--                          You must have applied for the check writing
 (minimum $250                       feature on your account application.  You  
 maximum $100,000)                   may redeem provided that the signatures you
                                     designated are on the check.  (There is no 
                                     charge for this service and you may write 
                                     an unlimited number of checks.)
________________________________________________________________________________

                FOR ALL OPTIONS BELOW, PLEASE CALL 1-800-798-1819
________________________________________________________________________________

 BY EXCHANGE--                        You must meet the minimum investment 
                                      requirement of the other fund.  You can 
                                      only exchange between accounts with 
                                      identical names, addresses, and taxpayer
                                      identification numbers.

 BY ELECTRONIC FUNDS                  You must have applied for the Telephone 
 TRANSFER (ACH) OR WIRE--             Transfer feature on your application.  
                                      Allow two days via ACH.  Call before 
                                      10:00 a.m. for same day wire.  $15.00 fee
                                      for bank wires.
<PAGE>

TABLE OF CONTENTS
     Expense Summary of Shares...............................................2
     Highlights..............................................................3
     Financial Highlights....................................................4
     Investment Objectives, Policies and Restrictions........................7
     Liquid Assets.......................................................... 7
     Municipal Assets........................................................9
     Performance............................................................12
     Distributions and Taxes................................................13
     Organization and Shares of the Funds...................................14
     Management and Fees....................................................15
     Opening an Account.....................................................16
         Share Price........................................................16
         Purchasing Shares..................................................16
     Shareholder Services...................................................19
     Redeeming Shares.......................................................21

NO SALESMAN,  OR OTHER PERSON, HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO
MAKE ANY  REPRESENTATIONS,  OTHER THAN THOSE  CONTAINED IN THIS  PROSPECTUS,  IN
CONNECTION  WITH THE OFFER  CONTAINED IN THIS  PROSPECTUS AND, IF GIVEN OR MADE,
SUCH OTHER INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN
AUTHORIZED BY THE FUNDS OR BY IMG FINANCIAL SERVICES,  INC. THIS PROSPECTUS DOES
NOT  CONSTITUTE  AN OFFERING BY IMG  FINANCIAL  SERVICES,  INC., IN ANY STATE IN
WHICH SUCH OFFERING MAY NOT LAWFULLY BE MADE.
<PAGE>
LIQUID ASSETS FUND AND                                             TRUST SHARES
MUNICIPAL ASSETS FUND

                 2203 Grand Avenue, Des Moines, Iowa 50312-5338

IMG FINANCIAL SERVICES, INC......................................1-800-798-1819
                                                                   515-244-5426
________________________________________________________________________________

PROSPECTUS                                                   SEPTEMBER 30, 1997

________________________________________________________________________________

Liquid  Assets  Fund  and  Municipal  Assets  Fund,  each  of  these  a  "Fund",
(collectively,  the "Funds") are money  market  mutual funds  designed to enable
investors to meet short-term  goals.  Investors choose whichever Fund best suits
their needs and may, without charge,  exchange Funds as their investment outlook
or goals change.  

Liquid  Assets  Fund  offers four  classes of shares and  Municipal  Assets Fund
offers three classes of shares. This Prospectus  describes the "Trust Shares" of
each Fund.  Trust  Shares are offered to  customers  of banks.  Trust Shares are
normally offered through trust  organizations  or others  providing  shareholder
services such as  establishing  and  maintaining  accounts and records for their
customers  who  invest  in  Trust  Shares,  assisting  customers  in  processing
purchase,  exchange  and  redemption  requests,  and  responding  to  customers'
inquiries  regarding  their  accounts.  The Funds also offer "Sweep  Shares" and
"Institutional  Shares" which accrue daily dividends in the same manner as Trust
Shares except that each class bears  separate  distribution  and/or  shareholder
administrative  servicing  fees.  "S2 Shares" are also offered by Liquid  Assets
Fund. (see "Organization and Shares of the Funds"). 

LIQUID ASSETS FUND,  ("Liquid  Assets") seeks maximum current income  consistent
with safety of principal and  maintenance of liquidity.  MUNICIPAL  ASSETS FUND,
("Municipal  Assets")  seeks maximum  current  income exempt from federal income
tax,  consistent  with safety of principal and  maintenance of liquidity.  Trust
Shares are offered  and  redeemed at $1.00 per share under rules which allow the
Funds to use the  amortized  cost  method  of  valuing  the  Funds'  assets.  

AN  INVESTMENT IN SHARES OF THE FUNDS IS NOT INSURED OR GUARANTEED BY THE UNITED
STATES,  BY ANY STATE,  OR BY THE FDIC, IS NOT A DEPOSIT OR OTHER  OBLIGATION OF
ANY BANK, OR  GUARANTEED BY A BANK,  AND INVOLVES  INVESTMENT  RISKS,  INCLUDING
POSSIBLE LOSS OF PRINCIPAL AMOUNT INVESTED.  

UNDER  EXTRAORDINARY  CIRCUMSTANCES  THE VALUE OF SHARES MAY VARY FROM $1.00 AND
CONSEQUENTLY,  THERE CAN BE NO ASSURANCE THAT THE FUNDS WILL BE ABLE TO MAINTAIN
A STABLE NET ASSET VALUE OF $1.00 PER SHARE.  

This  Prospectus  sets forth basic  information  about each Fund that  investors
should  know  before  investing  and should be  retained  for future  reference.
Statements of Additional  Information (as of the date of this Prospectus)  which
contain  more  detailed  information  about  each Fund have been  filed with the
Securities and Exchange Commission and are hereby incorporated by reference. The
Statements of Additional  Information  are available  free upon request from IMG
Financial  Services,  Inc., at the address and telephone number indicated above.

THESE  SECURITIES  HAVE NOT BEEN APPROVED OR  DISAPPROVED  BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES  COMMISSION,  NOR HAS THE SECURITIES
AND  EXCHANGE  COMMISSION  OR ANY  STATE  SECURITIES  COMMISSION  PASSED  ON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.

EXPENSE SUMMARY

The expense summary table is provided to assist you in understanding the various
costs and expenses that may be incurred  directly or indirectly as a shareholder
of either  Fund.  There  are no  transaction  fees  imposed  upon the  purchase,
redemption, or exchange of shares.

                                                      LIQUID          MUNICIPAL
                                                      ASSETS           ASSETS
ANNUAL FUND OPERATING EXPENSES (as a percentage of average net assets)
  Management Fees.................................     0.25%            0.25%
  Shareholder Service Fees........................     0.25%            0.25%
  Other Expenses..................................     0.20%            0.40%
  Total Fund Operating Expenses...................     0.70%            0.90%

For the period  September  1, 1996  through  January 15,  1997,  the Advisor and
Distributor  waived a portion or all of its fees and reimbursed certain expenses
of Liquid Assets and Municipal Assets. Additional operating expenses information
may be found under "Management and Fees".

EXAMPLE
You  would  pay the  following  expenses  on a $1,000  investment  in each  Fund
assuming,  (1) a (hypothetical) five percent annual return and (2) redemption at
the end of each time period.

                        1 Year        3 Years          5 Years         10 Years
  Liquid Assets          $  7           $22             $39               $87
  Municipal Assets       $  9           $29             $50              $111

EXPLANATION OF TABLE

THE  FOREGOING  SHOULD  NOT BE  CONSIDERED  A  REPRESENTATION  OF PAST OR FUTURE
EXPENSES OR RATES OF RETURN.  ACTUAL  EXPENSES OR RATES OF RETURN MAY BE MORE OR
LESS THAN THOSE  SHOWN.  The  Expense  Summary  and  Examples do not reflect any
charges that may be imposed by financial institutions on their customers.

The purpose of the foregoing  tables is to assist in  understanding  the various
costs and  expenses  that may be directly or  indirectly  borne by  investors in
Trust Shares. Certain figures contained in the above tables are based on amounts
incurred  during each Fund's most recent  fiscal year and have been  adjusted as
necessary to reflect current services provider fees and/or  reimbursements.  The
information  in the above tables  relates only to Trust  Shares.  The Funds also
offer  Sweep  Shares and  Institutional  Shares.  S2 Shares are also  offered by
Liquid Assets Fund.  Long-term  shareholders  may  eventually  pay more than the
economic equivalent of the maximum front-end sales charge otherwise permitted by
the National Association of Securities Dealers,  Inc. Wire transfers may be used
to transfer  federal funds directly  to/from the Funds' custodian bank. A $15.00
fee may be charged to an individual  shareholder account for redemption by wire.
Please refer to "Management and Fees" for further information.

HIGHLIGHTS

The INVESTMENT  OBJECTIVE of Liquid Assets is maximum current income  consistent
with safety of  principal  and  maintenance  of  liquidity.  The Fund invests in
short-term debt  obligations  issued or guaranteed by the U.S.  government,  its
agencies or instrumentalities and repurchase  agreements  collateralized by such
obligations   including,   redeemable   Certificates   backed  by  Farmers  Home
Administration guaranteed loans and primarily, federally insured student loans.

The INVESTMENT  OBJECTIVE of Municipal  Assets is maximum  current income exempt
from federal income tax,  consistent with safety of principal and maintenance of
liquidity.  The Fund  invests  primarily in high  quality  short-term  municipal
securities which mature or have a demand feature exercisable in one year or less
from  the  date  of  acquisition.  See  "Investment  Objectives,   Policies  and
Restrictions".

The NET ASSET  VALUE,  that is, the price at which  shares of the Funds are sold
and redeemed, will be $1.00 per share, except under extraordinary circumstances.
See "Opening an Account -- Share Price".

SHARES OF EITHER FUND MAY BE  PURCHASED at the next  determined  net asset value
per share,  without a sales charge,  with an initial investment of at least $250
and  subsequent  purchases  of at least $25  (subject  to  certain  exceptions).
Purchases may be made by check,  wire,  electronic funds transfer and/or through
Participating Organizations. See "Purchasing Shares".

SHARES MAY BE REDEEMED  at their next  determined  net asset value by  exchange,
check, wire, and/or electronic funds transfer. See "Redeeming Shares".

The ADVISOR of the Funds is Investors  Management Group,  (the "Advisor"),  2203
Grand Avenue,  Des Moines,  Iowa  50312-5338,  a registered  investment  advisor
incorporated in June 1982. See  "Management  and Fees".  The Advisor is also the
transfer agent for the Funds.

The  Funds'  DISTRIBUTOR  is  IMG  Financial  Services,  Inc.,  a  wholly  owned
subsidiary  of the  Advisor.  IMG  Financial  Services,  Inc.,  is a  registered
broker/dealer and was incorporated in May 1992.

The Advisor is entitled to an INVESTMENT  ADVISORY FEE which is calculated daily
and paid  monthly at an annual rate of 0.25 percent of each Fund's net assets up
to $200,000,000, declining to 0.20 percent of average daily net assets in excess
of $600,000,000.  For the period from September 1, 1996 to January 15, 1997, the
Advisor  voluntarily  agreed to waive all of its fee with  respect to  Municipal
Assets.  This waiver was voluntary and was  terminated on January 15, 1997.  See
"Management and Fees".

SHAREHOLDER  SERVICES  FEES  are  paid by the  Funds  to  certain  Participating
Organizations  up to a maximum of 0.25  percent of the  average  daily net asset
value of all Trust Shares issued and outstanding for the respective Fund.

DIVIDENDS are declared  daily and paid monthly (see  "Distributions  and Taxes")
and will be automatically reinvested unless the shareholder elects otherwise.

FINANCIAL HIGHLIGHTS

Effective October 29, 1996, the Funds commenced offering three classes of shares
with differing fee structures,  designated  "Sweep Shares",  Trust Shares",  and
"Institutional Shares". The shares designated Sweep Shares were offered and sold
with the same fee structure as the single class of shares previously  offered by
the Funds.  Trust Shares were first  offered  January 2, 1997.  For  comparative
purposes Financial Highlights on the following pages gives information about the
Funds' financial history on a per share basis for the past fiscal year.

The Funds'  fiscal year has been July 1 through  June 30 since their  inception.
The financial information  expresses investment and distribution  information in
terms of a single share outstanding throughout each period as indicated.

The tables  presented  have been examined by KPMG Peat Marwick LLP,  independent
auditors,  whose  unqualified  report covering the year ending June 30, 1997, is
included in the Annual Report to shareholders of each Fund. The Annual Report is
included in each Fund's Statement of Additional Information and will be provided
upon request to the address and  telephone  number on Page 1 of this  Prospectus
without charge. 

SELECTED DATA FOR A SHARE OF
EACH FUND OUTSTANDING
THROUGHOUT EACH PERIOD        1997
___________________________________

LIQUID ASSETS FUND - TRUST SHARES
Net Asset Value
Beginning of Period          $1.000

Net Investment Income          .050

Dividends Distributed         (.050)
                             -------
Net Asset Value
End of Period                $1.000
                             =======

Total Return                  4.96%

Ratio of Expenses to
Average Net Assets            0.70%

Ratio of Net Income to
Average Net Assets            4.96%

Net Assets
End of Period (000 Omitted) $17,859

SELECTED DATA FOR A SHARE OF
EACH FUND OUTSTANDING
THROUGHOUT EACH PERIOD        1997
___________________________________

MUNICIPAL ASSETS FUND -TRUST SHARES
Net Asset Value
Beginning of Period          $1.000

Net Investment Income          .032

Dividends Distributed         (.032)
                             -------
Net Asset Value
End of Period                $1.000
                             =======

Total Return                  3.17%

Ratio of Expenses to
Average Net Assets*           0.66%

Ratio of Net Income to
Average Net Assets            3.17%

Net Assets
End of Period (000 Omitted) $25,036

* During the year ended June 30, 1997, the advisor and  distributor  voluntarily
  waived certain fees.  Absent these  waivers,  the ratio of expenses to average
  net assets would have been 0.90 percent.

INVESTMENT OBJECTIVES, POLICIES AND RESTRICTIONS

LIQUID ASSETS

The investment  objective of Liquid Assets is maximum current income  consistent
with safety of principal and  maintenance of liquidity.  The Fund invests in the
following  money  market  instruments  maturing in 397 days or less from time of
investment, (with certain exceptions):

(1)    Obligations issued or guaranteed by the U.S.  government or any agency or
       instrumentality  thereof. Such securities will include those supported by
       the full faith and credit of the United  States  Treasury or the right of
       the agency or  instrumentality  to borrow from the  Treasury,  as well as
       those   supported   only  by  the  credit  of  the   issuing   agency  or
       instrumentality.

(2)    Repurchase  agreements involving securities in the immediately  foregoing
       categories.  A repurchase  agreement involves the sale of such securities
       to the Fund with the  concurrent  agreement  of the seller to  repurchase
       them at a  specified  time and  price to yield  an  agreed  upon  rate of
       interest.  Repurchase  agreements  may  involve  certain  risks which are
       described in greater detail in the Statement of Additional Information.

(3)    Redeemable    interest-bearing    trust   certificates   ("Student   Loan
       Certificates") issued by the Iowa Student Loan Trust and/or other Student
       Loan Trusts established by the Fund, ("Student Loan Trusts"), created for
       the sole purpose of  purchasing  from banks  (which  qualify as "eligible
       lenders")  federally  insured  student  loans  originated  by banks.  The
       Student Loan Certificates  will have original  maturities of no more than
       397 days but will be redeemable by the Fund at their face amount upon not
       more than five days'  written  notice to the issuing  Student Loan Trust.
       Further  details  concerning  the  Student  Loan  Trusts  and the  Fund's
       investments  in Student Loan  Certificates  are found in the Statement of
       Additional Information.

(4)    Redeemable  interest-bearing ownership certificates ("FmHA Certificates")
       issued  by one or more  guaranteed  loan  trusts  ("FmHA  Trusts"),  each
       created  for the  purpose of  acquiring  participation  interests  in the
       guaranteed portion of Farmer's Home  Administration  ("FmHA")  guaranteed
       loans.  The FmHA  Certificates  will have original  maturities of no more
       than 397 days but will be  redeemable  by the Fund at their  face  amount
       upon not more than five days'  written  notice to the issuing FmHA Trust.
       Further details  concerning the FmHA Trusts and the Fund's  investment in
       FmHA Certificates and FmHA guaranteed loans are found in the Statement of
       Additional Information.

In accordance with procedures  adopted pursuant to Rule 2a-7 under the 1940 Act,
the Fund limits its  investments  to those U.S.  dollar-denominated  instruments
determined  by the Board of Directors to present  minimal  credit risk and which
are "Eligible Securities" as that term is defined by Rule 2a-7. Pursuant to Rule
2a-7,  the Fund  shall not have  invested  more than five  percent  of its total
assets in securities issued by a single issuer.  For additional  requirements of
Rule 2a-7,  see  "Opening  an Account -- Share  Price".  Assets of the Fund will
consist of  securities  with  maturities of 397 days or less at date of purchase
or, if  maturing  beyond 397 days,  will be backed by  Liquidity  and  Servicing
Agreements  or Guaranteed  Funding  Agreements  and will have variable  interest
rates  adjustable  at least  semiannually.  In  determining  whether  particular
variable  rate  investments  backed by Liquidity  and  Servicing  Agreements  or
Guaranteed  Funding  Agreements may be made, the period remaining until maturity
will be deemed to be the longer of the demand notice period  required before the
Fund is  entitled  to  receive  payment  of the  principal  amount or the period
remaining  until  the next  interest  adjustment.  The  dollar-weighted  average
maturity of Fund  investments  will be 90 days or less,  determined  in the same
manner.  While the  underlying  security in a  repurchase  agreement  may have a
maturity of more than 397 days, the repurchase  agreement  itself will terminate
in less than 397 days,  and  typically  within a few days.  The Fund  intends to
invest at least 25 percent of its total  assets in  Student  Loan  Certificates,
and/or FmHA Certificates,  except when such investments are either not available
in  sufficient  quantity or do not carry  yields  competitive  with  alternative
investments.

It is the policy of the Fund that any illiquid securities  (including repurchase
agreements of more than seven days duration) may not constitute,  at the time of
purchase  or at any time,  more than ten  percent  of the value of the total net
assets of the Fund.

As a fundamental policy, the Fund does not intend to concentrate its investments
in any one industry and pursuant to Section  18(f) of the 1940 Act, the Fund may
not issue senior securities.  As a general policy, it is the Fund's intention to
hold investments until they mature.  However, in an effort to increase portfolio
yields the Fund may periodically trade securities to take advantage of perceived
disparities between markets for various short-term money market instruments.  It
is also possible that  redemptions of Fund shares could  necessitate the sale of
portfolio  investments  prior to  maturity  and at times when such sale would be
undesirable because of unfavorable market conditions.

While  investments  by the  Fund  will be  confined  to high  quality  financial
instruments,  the complete  elimination  of risk is not possible.  Under certain
circumstances   described  in  more  detail  in  the   Statement  of  Additional
Information,  the net asset  value of Fund  shares  could  decrease.  It is also
possible  Participating  Banks or borrowers  will default on the  provisions  of
their  agreements  with  the  Fund or that  banks  will  default  on  repurchase
agreements  with the Student Loan Trusts or the FmHA  Trusts,  which could cause
the net asset value per share to decrease.

In light of these various  contingencies,  there can be no  assurances  the Fund
will achieve its investment objectives.

The Fund has adopted a number of investment  policies and restrictions,  some of
which can be changed by the Board of  Directors.  Others may be changed  only by
holders of a majority  of the  outstanding  shares and  include  the  following:
Without shareholder approval the Fund may not: (1) purchase any securities other
than those described  above; (2) invest more than 80 percent of its total assets
in Student Loan Certificates and/or FmHA Certificates; (3) purchase or sell real
estate (other than short-term loans secured by real estate or interests  therein
or loans to companies which invest in or engage in other  activities  related to
real estate), commodities or commodity contracts, interests in oil, gas or other
mineral exploration or development programs;  (4) make short sales of securities
or  maintain  a short  position  or write,  purchase,  or sell  puts  (excluding
repayment and  guarantee  arrangements  on loan  participations  purchased  from
Participating  Banks),  calls,  straddles,  spreads or combinations thereof; (5)
make loans to other  persons,  provided  the Fund may invest up to 80 percent of
its total assets in Student Loan Certificates or FmHA Certificates, as described
in (2) above, and may make the investments and enter into repurchase  agreements
as  described  above;  (6)  invest  in  securities  with  legal  or  contractual
restrictions  on  resale  (except  for  repurchase   agreements,   Student  Loan
Certificates,  and FmHA  Certificates) or for which no ready market exists;  (7)
enter into repurchase agreements if, as a result thereof, more than five percent
of the  Fund's  total  assets  (taken  at  market  value  at the  time  of  such
investment)  would be subject to  repurchase  agreements  maturing  in more than
seven days.

The foregoing investment  restrictions are considered fundamental policies which
cannot be changed without the approval of a "majority" of the Fund's outstanding
voting  securities,  that is, by (a) 67 percent or more of the securities voting
at a special or annual meeting if more than 50 percent of the outstanding shares
of Common Stock are  represented  at such meeting in person or by proxy;  or (b)
more than 50 percent of the  outstanding  Common Stock,  whichever is less.  The
Statement  of  Additional  Information  includes  discussion  of  certain  other
investment  policies  and  restrictions,  some  of  which  are  also  considered
fundamental and may not be changed without shareholder approval.

MUNICIPAL ASSETS

The investment  objective of Municipal  Assets is maximum  current income exempt
from federal income tax,  consistent with safety of principal and maintenance of
liquidity.  The Fund invests in the following types of money market  instruments
maturing in 397 days or less from time of investment (with certain  exceptions),
as defined herein:

(1)    Tax-exempt debt  obligations  issued by state and municipal  governmental
       units and public  authorities  within the United States and participation
       interests therein.  With few exceptions such obligations will be nonrated
       and of  limited  marketability.  However,  they  will be backed by demand
       repurchase  commitments  of the  issuers  thereof  and  irrevocable  bank
       letters  of  credit or  guarantees  (collectively  referred  to herein as
       "Liquidity Agreements").  The Liquidity Agreements will permit the holder
       of the securities to demand payment of the unpaid principal  balance plus
       accrued  interest upon a specified number of days' notice either from the
       issuer  or  by  drawing  on an  irrevocable  bank  letter  of  credit  or
       guarantee.  In addition,  all obligations with maturities longer than 397
       days from date of purchase  will, by their terms,  bear rates of interest
       that are adjusted upward or downward no less frequently than semiannually
       by means of a formula  intended  to reflect  market  changes in  interest
       rates.  Certain  types of industrial  development  bonds issued by public
       bodies  to  finance  the   construction   of  industrial  and  commercial
       facilities and equipment are also purchased.  The Statement of Additional
       Information  contains further details  concerning the Fund's policies and
       procedures with respect to investments in such tax-exempt obligations and
       participation interests.

(2)    High quality  tax-exempt debt  obligations  issued by state and municipal
       governments and by public  authorities,  including issues sold as interim
       financing in anticipation of tax  collections,  revenue  receipts or bond
       sales, and tax-exempt  Project Notes secured by the full faith and credit
       of the United States.  Such  obligations will be purchased only if backed
       by the full  faith and  credit of the  United  States or rated  Aaa,  Aa,
       MIG-1, MIG-2 or Prime-1 by Moody's Investors  Service,  Inc., or AAA, AA,
       or A-1 by Standard & Poor's Corporation.  Nonrated securities may also be
       purchased  if  determined  by the  Fund's  board  of  directors  to be of
       comparable quality to the rated securities in which the Fund may invest.

(3)    Taxable obligations issued or guaranteed by agencies or instrumentalities
       of the U.S.  government  may be acquired from time to time on a temporary
       basis for defensive purposes.

(4)    Repurchase  agreements  involving  securities in the immediate  foregoing
       category.  A repurchase agreement involves the sale of such securities to
       the Fund with the concurrent  agreement of the seller to repurchase  them
       at a specified time and price,  to yield an agreed upon rate of interest.
       Repurchase  agreements  may involve  certain risks which are described in
       greater detail in the Statement of Additional Information.

In accordance with procedures  adopted pursuant to Rule 2a-7 under the 1940 Act,
the Fund limits its  investments  to those U.S.  dollar-denominated  instruments
determined  by the Board of Directors to present  minimal  credit risk and which
are "Eligible Securities" as that term is defined by Rule 2a-7. Pursuant to Rule
2a-7,  the Fund shall not invest more than five  percent of its total  assets in
securities issued by a single issuer. For additional  requirements of Rule 2a-7,
see  "Opening  an Account -- Share  Price".  Assets of the Fund will  consist of
securities  with  maturities  of 397  days or less at date of  purchase  or,  if
maturing beyond 397 days,  securities  which are backed by Liquidity  Agreements
and which have variable  interest rates  adjustable at least  semi-annually  and
upon the  adjustment  of the interest rate the value of the  securities  will be
approximately  equal to par. In  determining  whether  particular  variable rate
investments  backed by Liquidity  Agreements may be made,  the period  remaining
until  maturity  will be deemed to be the  longer of the  demand  notice  period
required before the Fund is entitled to receive payment of the principal  amount
or the period remaining until the next interest adjustment.  The dollar-weighted
average maturity of Fund investments will be 90 days or less,  determined in the
same manner.

Under normal market conditions, the Fund as a matter of fundamental policy, will
invest at least 80 percent of its total net assets in tax-exempt securities, the
interest on which is exempt from federal  income tax,  except to the extent that
some or all of  which  may be  subject  to the  alternative  minimum  tax.  This
fundamental  policy may not be changed without the approval of a majority of the
Fund's  outstanding  voting  securities.  It is the  policy of the Fund that any
illiquid  securities may not constitute,  at the time of purchase or at anytime,
more than ten percent of the value of the total net assets of the Fund. The Fund
does not intend to concentrate  its investments in any one industry and pursuant
to Section 18(f) of the 1940 Act may not issue senior securities.

As a general policy,  it is the Fund's intention to hold investments  until they
mature or until immediately  prior to the expiration of an applicable  Liquidity
Agreement.  However,  in an effort to increase  portfolio  yields,  the Fund may
periodically trade securities to take advantage of perceived disparities between
markets for various  short-term  money market  instruments.  It is also possible
that  redemptions  of Fund  shares  could  necessitate  the  sale  of  portfolio
investments  prior to maturity and at times when such sale would be  undesirable
because of unfavorable market conditions.

New issues of tax-exempt  debt  obligations are usually offered on a when-issued
basis with the  securities  to be delivered and paid for  approximately  45 days
following the initial purchase commitment.  The Fund may occasionally enter into
such commitments, subject to certain limitations and procedures discussed in the
Statement of Additional Information.

While  investments  by the  Fund  will be  confined  to  high-quality  financial
instruments,  the complete  elimination  of risk is not possible.  Under certain
circumstances,   described  in  more  detail  in  the  Statement  of  Additional
Information,  the net asset  value of Fund  shares  could  decrease.  It is also
possible an issuer or bank will  default on the  provisions  of their  Liquidity
Agreements,  which  could cause the net asset  value per share to  decrease.  In
light of these various  contingencies,  there can be no assurances the Fund will
achieve its investment objectives.

The Fund has adopted a number of investment  policies and restrictions,  some of
which can be changed by the Board of  Directors.  Others may be changed  only by
holders of a majority  of the  outstanding  shares and  include  the  following:
Without shareholder approval the Fund may not: (1) purchase any securities other
than those described under "Investment  Policy"; (2) invest more than 80 percent
of its total assets in tax-exempt  fixed and variable rate debt  obligations (or
participation  interests  therein) issued by state and local  governmental units
within the United  States which are backed by Liquidity  Agreements;  (3) invest
more  than  five  percent  of its  total  assets  (determined  as of the date of
purchase) in tax-exempt  obligations or participation  interests therein subject
to  Liquidity  Agreements  issued by any one  bank;  (4)  purchase  or sell real
estate,  commodities  or  commodity  contracts,  interests  in oil, gas or other
mineral exploration or development programs;  (5) make short sales of securities
or  maintain  a short  position  or write,  purchase,  or sell  puts  (excluding
Liquidity  Agreements covering certain tax-exempt  obligations  purchased by the
Fund),  calls,  straddles,  spreads or combinations  thereof;  (6) make loans to
other persons,  provided the Fund may make investments and enter into repurchase
agreements  as  described   above;  (7)  invest  in  securities  with  legal  or
contractual  restrictions  on resale  (except for  tax-exempt  debt  obligations
subject to Liquidity  Agreements) or for which no ready market exists; (8) enter
into a Liquidity  Agreement  with any bank  unless such bank is a United  States
bank which has a record,  together with predecessors,  of at least five years of
continuous  operations;  (9) enter into  repurchase  agreements  if, as a result
thereof,  more than five  percent of the Fund's  total  assets  (taken at market
value at the time of such investment) would be subject to repurchase  agreements
maturing in more than seven days; and (10) enter into Liquidity  Agreements with
any bank if five percent or more of the securities of such bank are owned by the
Advisor or by  directors  and  officers  of the Fund or the  Advisor,  or if any
director or officer of the Fund or the Advisor owns more than 1/2 percent of the
voting securities of such bank.

The foregoing investment  restrictions are considered fundamental policies which
cannot be changed without the approval of a "majority" of the Fund's outstanding
voting  securities,  that is, by (1) 67 percent or more of the securities voting
at a special or annual meeting if more than 50 percent of the outstanding shares
of Common Stock are  represented  at such meeting in person or by proxy;  or (2)
more than 50 percent of the  outstanding  Common Stock,  whichever is less.  The
Statement  of  Additional  Information  includes  discussion  of  certain  other
investment  policies  and  restrictions,  some  of  which  are  also  considered
fundamental and may not be changed without shareholder approval.

PERFORMANCE

Performance  of each Fund may be quoted in advertising in terms of current yield
and  effective  yield.  CURRENT  YIELD  refers  to the  income  generated  by an
investment  in  either  Fund over a  seven-day  period,  expressed  as an annual
percentage rate. EFFECTIVE YIELD is calculated similarly but assumes that income
earned  from the  investment  is  reinvested.  Effective  yield will be slightly
higher than  current  yield  because of the  compounding  effect of this assumed
reinvestment.

The current and effective  yields for the seven-day  period ended June 30, 1997,
for Liquid Assets and Municipal  Assets were 5.05 percent and 5.16 percent,  and
3.60 percent and 3.66 percent, respectively.

Performance of the Funds may also be compared to other mutual funds with similar
investment  objectives,  relevant  indices or rankings  prepared by  independent
services or other  financial  publications,  or yields on deposits at  financial
institutions.  Unlike the Funds, deposit accounts at financial  institutions are
generally FDIC insured and do not fluctuate to the extent of the Funds.

Additionally,  Municipal Assets may quote a taxable-equivalent  yield based on a
stated  income  tax  rate.  Please  see  each  Fund's  Statement  of  Additional
Information for further  discussion of the manner in which yields are calculated
and the comparative performance data which may be used.

Of  course,  the  Funds'  yields  are not  fixed  nor is  principal  guaranteed.
Performance  will  fluctuate  and any  quotation  should  not be  considered  as
representative of the future performance of either Fund.

DISTRIBUTIONS AND TAXES

Dividends  from the net income of each Fund are declared  daily on each business
day and paid monthly to holders of record  immediately  before 3:00 p.m. Central
Time. Dividends are automatically reinvested in Trust Shares unless cash payment
has been  requested.  If a shareholder  redeems the entire amount in his account
during the month,  dividends  credited to the account from the  beginning of the
month through the date of redemption are paid with the redemption proceeds.

Dividends on each class of shares are determined in the same manner and are paid
in the same amounts irrespective of class, except that each class bears separate
distribution and/or shareholder  servicing fees (see "Organization and Shares of
the Funds").

Dividends  declared in October,  November,  or December of any year,  payable to
shareholders  of record on a specified  date in such  months,  will be deemed to
have been received by the  shareholders  and paid by the Funds on December 31 of
such year, in the event that such  dividends are actually paid during January of
the following year.

Each Fund intends to qualify as a regulated  investment  company by distributing
substantially  all of its taxable net income,  including  any  realized  capital
gains,  and thus will not incur any  Federal  income  taxes.  Shareholders  will
receive  taxable  dividend  income,  tax-exempt  dividend  income and/or capital
gains, as the case may be, from  distributions  whether paid in cash or received
in the form of additional shares.

Dividends  derived from interest on federally  tax-exempt debt obligations owned
by Municipal Assets are intended to constitute "exempt-interest dividends" which
are  generally  not Federally  taxable to  shareholders,  although some could be
includable for purposes of the alternative  minimum tax.  Dividends derived from
other interest and the  realization of capital gains are taxable to shareholders
whether or not reinvested.

Municipal  Assets  expenses  will be allocated  between  tax-exempt  and taxable
income in the same proportion as the Fund's tax-exempt income bears to the total
of such exempt  income and its gross  income  (excluding  from gross  income the
excess of capital gains over capital losses).

Promptly after the end of each calendar year,  each  shareholder  will receive a
statement of the Federal  income tax status of all dividends  and  distributions
paid during the year.  This  discussion is only a summary and relates  solely to
Federal tax matters.  Further  discussion of the Federal Income Tax consequences
of an  investment  in the  Fund  is  provided  in the  Statement  of  Additional
Information.  Dividends may also be subject to local taxation.  Shareholders are
encouraged to consult with their personal tax advisors.

ORGANIZATION AND SHARES OF THE FUNDS

The Funds are open-end, diversified management investment companies organized as
Iowa  corporations.  Liquid Assets was  incorporated in June 1982 under the name
Iowa Liquid Assets Fund,  Inc.,  and changed its name to IMG Liquid Assets Fund,
Inc., in October 1987. Municipal Assets was incorporated under the name Iowa Tax
Free Liquid  Assets Fund,  Inc., in January 1983 and changed its name to IMG Tax
Exempt  Liquid Assets Fund,  Inc.,  in October 1987. On September 25, 1996,  the
Funds each increased  authorized capital to five billion shares of Common Stock,
par value $.001 per share,  changed the Fund's  names to Liquid  Assets Fund and
Municipal Assets Fund,  respectively,  and amended their respective  Articles of
Incorporation  to  authorize  the  Boards  of  Directors  to  issue  one or more
additional   classes  of  shares.   Simultaneously,   the  Boards  approved  the
redesignation  of the  existing  shares as "Sweep  Shares"  and the  issuance of
"Trust  Shares" and  "Institutional  Shares".  On February 3, 1997, the Board of
Directors authorized the issuance of "S2 Shares" by Liquid Assets. Management of
the  affairs of each Fund is  legally  vested in its Board of  Directors,  which
meets  periodically  to review  activities  of the Fund and the  Advisor  and to
consider other policy matters pertaining to the Fund.

Trust  Shares of the Funds  are  described  in this  Prospectus.  Sweep  Shares,
Institutional  Shares and S2 Shares are offered in separate  Prospectuses  which
may be  obtained  by  calling  IFS at  1-800-798-1819  or  writing to IFS at the
address on the cover of this  Prospectus.  All shares are offered to  individual
and  institutional  investors  acting on their own  behalf or on behalf of their
customers and bear their pro rata portion of all operating  expenses paid by the
Funds,  except  that Sweep  Shares,  Trust  Shares and S2 Shares  bear  separate
distribution  and/or shareholder  servicing fees.  Institutional  Shares bear no
distribution and/or shareholder servicing fees.

Each class of shares offers different privileges. Sweep Shares and S2 Shares are
normally offered through  financial  institutions  providing  automatic  "sweep"
investment  programs to their  customers,  and offer a check writing  privilege.
Trust  Shares  are  normally  offered  through  trust  organizations  or  others
providing shareholder services such as establishing and maintaining accounts and
records for their customers who invest in Trust Shares,  assisting  customers in
processing  purchase,  exchange  and  redemption  requests,  and  responding  to
customers'  inquiries  concerning their  investments.  Institutional  Shares are
available  directly  from the  Distributor  only and offer only the Exchange and
Telephone  Transfer  services.  Each  class of shares is  exchangeable  only for
shares of the same class.  Financial  institutions  selling or  servicing  Sweep
Shares,  Trust  Shares and S2 Shares may  receive  different  compensation  with
respect to one class over another.

Shareholders are entitled to one vote for each full share held and proportionate
fractional  votes  for  fractional  shares  held.  Shares of each Fund will vote
together and not by class unless otherwise  required by law or permitted by each
Fund's Board of Directors. All shareholders of each Fund will vote together as a
single class on matters relating to the Fund's  investment  advisory  agreement,
investment objective and fundamental policies.  Only holders of Sweep Shares and
S2 Shares  will vote on  matters  relating  to the  Distribution  Plan for Sweep
Shares  and S2  Shares.  Only  holders  of Trust  Shares  will  vote on  matters
pertaining to the Shareholder Services Plan for Trust Shares.

Shares of the Funds have  non-cumulative  voting  rights and,  accordingly,  the
holders of more than 50 percent of each Fund's outstanding shares  (irrespective
of class) may elect all of the Directors.  Shares have no preemptive  rights and
only such  conversion and exchange  rights as each Fund's Board may grant in its
discretion.  When issued for payments as described  in this  Prospectus,  shares
will be fully paid and nonassessable.

MANAGEMENT AND FEES

Investors Management Group, ("IMG") manages the investments and business affairs
of the  Funds.  IMG is a  registered  Investment  Advisor  located at 2203 Grand
Avenue,  Des Moines,  Iowa 50312-5338.  IMG Financial  Services,  Inc., a wholly
owned subsidiary of IMG, is a registered  broker/dealer and serves as the Funds'
Underwriter.  Since IMG was founded in 1982,  its  principal  business  has been
providing continuous  investment management to pension and profit-sharing plans,
insurance  companies,   public  agencies,   banks,   endowments  and  charitable
institutions,  other mutual funds,  individuals and others. As of June 30, 1997,
IMG had  approximately  $1.6  billion in equity,  fixed  income and money market
assets  under  management.  David W.  Miles and Mark A.  McClurg  are  principal
shareholders of IMG.

The Funds are  managed by Jeffrey  D.  Lorenzen,  CFA,  Managing  Director.  Mr.
Lorenzen is a fixed income strategist and is a member of IMG's Investment Policy
Committee.  Prior to joining IMG in 1992, his experience  includes  serving as a
securities  analyst and corporate  fixed income analyst for The Statesman  Group
from 1989 to 1992.  He received  his Masters of Business  Administration  degree
from Drake  University and his Bachelor of Business  Administration  degree from
the University of Iowa.

Under a management  contract between each Fund and IMG, a fee is paid to IMG for
investment  advisory  services.  Each Fund is responsible  for paying  operating
expenses not assumed by IMG.

The  management  fee for each Fund is  calculated  daily and paid  monthly.  The
maximum  management  fee for each Fund is 0.25  percent of each  Fund's  average
daily net assets up to $200,000,000. The management fee declines to 0.20 percent
of average daily net assets in excess of $600,000,000. For the fiscal year ended
June 30, 1997,  fees paid by Liquid Assets and Municipal  Assets to IMG amounted
to approximately  0.25 percent of Liquid Assets average net assets,  or $428,125
and  approximately  0.15  percent of  Municipal  Assets  average net assets,  or
$51,871.

From time to time, IMG may voluntarily  waive all or a portion of the management
fee and/or absorb certain  expenses of a Fund or class of shares without further
notification  of the  commencement  or termination of such waiver or absorption.
Any such waiver will have the effect of lowering the overall expense ratio for a
Fund or class of shares and  increasing  the overall  yield to investors in that
Fund or class of shares at the time any such amounts are waived and/or absorbed.

For the period  September 1, 1996  through  January 15,  1997,  IMG  voluntarily
waived  $26,566 of its advisory fees on Municipal  Assets.  Without such waiver,
IMG would have been entitled to receive a fee at the annual rate of 0.25 percent
of the average daily net assets of Municipal Assets.

IMG also acts as transfer  agent and dividend  paying  agent for the Funds,  and
maintains all shareholder records. Each Fund pays fees based upon asset size and
number of accounts.

Expenses of operating  each Fund include fees of directors not  affiliated  with
the Investment  Advisor,  custodial  fees,  taxes,  auditing and legal expenses,
Securities and Exchange  Commission fees, state securities  qualification  fees,
costs of preparing and printing  prospectuses  for  regulatory  purposes and for
distribution to shareholders,  certain insurance premiums,  transfer agent fees,
the publishing of reports to  shareholders,  and other expenses  relating to the
operation  of each  Fund  which  are not  expressly  assumed  by the  Investment
Advisor.

Effective October 15, 1996, each Fund pays certain shareholder servicing fees to
financial institutions ("Participating Organizations"), who render assistance in
servicing  their  customers who are direct or  beneficial  owners of each Fund's
Trust Shares  under  Shareholder  Services  Plans (the  "Plans")  adopted by the
Funds'  Boards of  Directors.  The maximum fees  payable  under the Plans are an
annual rate of 0.25 percent,  computed monthly on the basis of the average daily
net asset value of the Trust Shares  issued by each Fund.  The directors of each
Fund review quarterly a written report of the costs incurred associated with the
Plans.  The  directors  believe  that the Plan are in the best  interests of the
Funds.

The Glass-Steagall Act and other applicable laws prohibit banks from engaging in
the business of underwriting,  selling, or distributing  securities.  Insofar as
Participating  Organizations  (including banks) are compensated under the Plans,
their only function will be to perform  administrative and shareholder  services
for  their  clients  who  wish  to  invest  in  the  Funds.  If a  Participating
Organization  at a future date is prohibited  from acting in this capacity,  the
shareholder may lose the services  provided by the  Participating  Organization;
however,  it is not  expected  that the  shareholders  would  incur any  adverse
financial  consequences.  It is intended  that none of the services  provided by
such  Participating  Organizations  other than through  registered  brokers will
involve the solicitation or sale of shares of the Funds.

AMCORE Investment Group,  N.A.,  Rockford,  Illinois,  acts as custodian for the
Funds' cash and investments.

OPENING AN ACCOUNT

The Funds require a completed and signed  application (which is attached) at the
time you open  each new  account.  Additional  paperwork  may be  required  from
corporations,  associations and certain fiduciaries.  IF YOU HAVE QUESTIONS CALL
IFS AT 1-800-798-1819 FROM 8:00 A.M. TO 4:30 P.M. CENTRAL TIME.

SHARE PRICE

The shares of each Fund are sold without a sales charge.  The price of one share
is its "net asset value" or NAV (generally $1.00). NAV is computed by adding the
value  of each  Fund's  investments,  plus  cash  and  other  assets,  deducting
liabilities  and then  dividing the result by the number of shares  outstanding.
The NAV of each Funds'  shares is  determined  twice each business day, at 11:00
a.m. Central Time and at the close of the New York Stock Exchange (normally 3:00
p.m. Central Time). The Funds are open for business each day the Federal Reserve
is open.

Your purchase will be processed at the next NAV calculated after your investment
has been  converted  to federal  funds.  If you invest by check,  the Funds must
generally  allow one or more  days for  conversion  into  federal  funds  before
accepting your purchase.

Rule 2a-7 under the Investment  Company Act of 1940 permits the Funds to compute
net asset value per share using the amortized  cost method of valuing  portfolio
securities. As a condition for using the amortized cost method of valuation, the
Board of Directors  established  procedures  to stabilize  each Fund's net asset
value at $1.00 per Share.  These procedures are described in more detail in each
Fund's Statement of Additional Information.

Under the amortized cost method of valuation,  a security is initially valued at
cost on the date of  purchase  and,  thereafter,  any  discount  or  premium  is
amortized  on a  straight-line  basis to maturity,  regardless  of the effect of
fluctuating interest rates on the market value of the security.  U.S. government
obligations,  Student Loan Certificates and FmHA Certificates, which are subject
to mandatory repurchase at their original purchase price, investments in taxable
and tax-exempt  debt  obligations  rated by a recognized  bond rating agency and
regularly traded in the secondary  market,  and nonrated fixed and variable rate
tax-exempt obligations and participation interests therein, not regularly traded
in the secondary  market but subject to Liquidity  Agreements  will be valued at
amortized cost. Other assets are valued at a fair value determined in good faith
by the board of directors of each Fund.

PURCHASING SHARES

Shares of each Fund may be purchased directly from IMG Financial Services, Inc.,
as the  distributor.  Shares may also be  purchased  by  customers  of qualified
banks, savings and loan associations, broker/dealers, investment advisory firms,
and other organizations  ("Participating  Organizations") that have entered into
servicing  agreements with the Distributor.  The  Participating  Organization is
responsible for transmitting purchase orders directly to the Fund's Distributor.
A Participating  Organization  may elect to hold record  ownership of shares for
its  customers  and to  show  beneficial  ownership  of  shares  on the  account
statements it provides to them. In the alternative, a Participating Organization
may elect to establish  its  customers'  accounts of record with IMG as transfer
agent  for  the  Funds.   Generally,   shares  purchased  through  Participating
Organizations  will be held by the Participating  Organization as shareholder of
record.

Shares of each Fund are  offered  without  any  purchase  or  redemption  charge
imposed by the Fund.  The minimum  initial  investment  that may be made in each
Fund is $250. Subsequent investments in each Fund must be made in amounts of not
less  than  $25,   except  where   purchases  are  made  through   Participating
Organizations in which case there is no minimum. Participating Organizations may
aggregate their customers' purchases to satisfy the required minimums.

Purchases  may be effected on business  days when the Advisor,  Distributor  and
Custodian  are open for  business.  The Funds  reserve  the right to reject  any
purchase order,  including purchases made with foreign and third party drafts or
checks.

A purchase  order for Trust  Shares  received and accepted by the Funds by 10:00
a.m. Central Time on a business day is effected at the net asset value per share
calculated  as of 11:00 a.m.  Central  Time,  and  investors  will  receive  the
dividend  declared that day, if the Custodian has received the purchase price in
federal funds or other  immediately  available  funds by 3:00 p.m.  Central Time
that day. A purchase order for Trust Shares  received  after 10:00 a.m.  Central
Time and prior to 3:00 p.m.  Central Time on a business day for which such funds
have been  received by 3:00 p.m.  Central  Time will be effected as of 3:00 p.m.
Central Time, and will begin to accrue dividends on the following  business day.
If federal funds are not available by 3:00 p.m.  Central Time, the order will be
canceled.  Payment for orders  which are not  accepted or are  canceled  will be
returned after prompt inquiry to the transmitting organization.

While the Funds  themselves do not presently  levy sales,  redemption or account
service charges,  Participating  Organizations  may elect to do so and the Funds
may elect to do so in the future.  Investors should inquire regarding the nature
and costs of services  provided by Participating  Organizations and determine if
such  services  are  desired,  because the costs  thereof will reduce the Funds'
yields to the investor below that obtainable by investing in the Funds directly.

Customers  wishing to purchase shares through their  Participating  Organization
should contact such entity directly for appropriate instructions. (For a list of
the Participating Organizations in your area, CALL IMG FINANCIAL SERVICES, INC.,
AT  1-800-798-1819  OR  515-244-5426.)  Direct  investors may purchase shares in
accordance with the procedures described below, "Purchase Procedures".

Certificates representing Fund shares purchased will not be issued. However, all
purchases are confirmed in writing to the investor and credited to their account
in the shareholder records maintained by the Transfer Agent. Investors will have
the same rights to their shares as if certificates had been issued.  

PURCHASE PROCEDURES

   METHOD                 INITIAL INVESTMENT              ADDITIONAL INVESTMENT
 
 BY MAIL                   $250 (minimum)                   $25 (minimum)
                     Please make your check pay-      Please make your check 
                     able to the Fund selected and    payable to the Fund 
                     mail to the address indicated    selected, with your 
                     on the application.              account number on the 
                                                      check and mail to the 
                                                      address printed on your 
                                                      account statement.

 BY WIRE             Please call IMG Financial        See instructions below.
                     Services, Inc., for an account
                     number before initial invest-
                     ment at 1-800-798-1819 or
                     515-244-5426.

 Federal  Funds should be wired to:  Federal  Reserve Bank of Chicago for AMCORE
 Investment Group, N.A., Rockford, Illinois, together with the name of the Fund,
 your account number and names.

 Please  note that when  accounts  are opened by wire you must send a  completed
 application at your earliest convenience.  Your application must be received by
 the Fund before any instructions for redemption will be accepted.

 BY ELECTRONIC       Not available for initial        Shareholders who have an
 FUNDS TRANSFER      purchase.                        account with an 
 (ACH)                                                institution which is a 
                                                      member of the Automated 
                                                      Clearing House, may elect
                                                      to purchase Fund shares 
                                                      via electronic funds
                                                      transfer.  Select this
                                                      service on your
                                                      application or call the 
                                                      Fund.

SHAREHOLDER SERVICES

Some shareholder  services may not be available if shares are purchased  through
Participating   Organizations.   Call   IMG   Financial   Services,   Inc.,   at
1-800-798-1819 for more information.

EXCHANGE  PRIVILEGE.  You may  exchange  Trust  Shares of either  Fund for Trust
Shares in the other Fund described in this  Prospectus.  An exchange  involves a
redemption  of the shares of the Fund  being  liquidated  and a purchase  of the
shares of the Fund in which the  redemption  proceeds  are to be  invested.  The
exchange  privilege  is  offered as a  convenience  to  shareholders  and is not
intended to be a means of  speculating  on  short-term  movements in  securities
prices by transactions  involving frequent  purchases and sales of shares.  Each
Fund reserves the right at any time and without prior notice, to suspend, limit,
modify or terminate exchange privileges or their use by individual  shareholders
in order to prevent  transactions  considered to be  disadvantageous to existing
shareholders.

TELEPHONE TRANSFERS.  This service allows you to authorize transfers of money to
purchase or sell shares.  Using  Telephone  Transfer you can move money  between
your bank account and your account in the Funds with one phone call.  Moneys may
be transferred  either by wire or electronic  funds transfer with an institution
which is a member of the Automated Clearing House ("ACH").

Wire transfers may be used to transfer federal funds directly to/from the Funds'
custodian  bank. A $15.00 fee may be charged to your account for  redemptions by
wire.

Allow two (2) days after the call for electronic  funds transfer via ACH to move
moneys between your bank account and your account with either Fund.

For moneys  recently  invested,  allow normal  clearing  time before  redemption
proceeds  are sent to your bank.  In order to change the  financial  institution
account designated to receive redemption proceeds,  it will be necessary to send
a written  request to the Fund with a  signature  guarantee  from a national  or
state bank,  a trust  company or a federal  savings and loan  association,  or a
member  firm of the  New  York,  American,  Boston,  Midwest  or  Pacific  Stock
Exchange.

You can also arrange  SYSTEMATIC  PERIODIC  INVESTMENTS  (minimum $50) into your
Fund account.  Simply select the regular investment schedule you would like when
completing your account  application.  Your bank account will  automatically  be
debited to purchase shares of the Fund you select. You will receive confirmation
of each transaction.

Your  bank must be a member of ACH and you must  have a  checking  or  NOW/Money
Market Deposit account to use electronic funds transfer or systematic investing.
Please allow 20 days after receipt of your application to activate the Telephone
Transfer capability.

STATEMENTS  AND REPORTS.  You will  receive a statement of your account  listing
every  transaction  that affects your share balance no less than once per month.
At least twice a year you will receive the  financial  statements of the Fund in
which you have invested with a summary of that Fund's portfolio  composition and
performance.  Each Fund's Annual Report is reported on by the Funds' independent
auditors, KPMG Peat Marwick LLP.

REDEEMING SHARES

Shareholders may request  redemption of their shares at any time. Shares will be
redeemed at their net asset value as next determined after a redemption  request
in good order is received by the Fund's Distributor.  Redemption orders received
and accepted by the Distributor before 10:00 a.m. Central Time on a business day
will be redeemed as of 11:00 a.m.  Central Time and will earn dividends  through
the previous day; proceeds normally will be sent electronically the same day (or
mailed by check the next  business  day) to the  organization  that  placed  the
redemption  order in good form.  Redemption  orders  received  after  10:00 a.m.
Central Time or on a non-business  Day will be redeemed as of 3:00 p.m.  Central
Time or at the next  determined net asset value and earn  dividends  through the
date the redemption request was received;  proceeds will be sent  electronically
on the  next  business  day (or  mailed  by  check on the  second  business  day
thereafter).  While the Funds use their best efforts to maintain their net asset
value per share at $1.00,  the proceeds paid upon redemption may be more or less
than the amount originally invested.

If you purchase  shares  through a  Participating  Organization,  you may redeem
shares  in  accordance  with  that  Organization's  rules  regarding  redemption
requests.   Direct  shareholders  may  redeem  shares  in  accordance  with  the
procedures described under "How to Redeem Shares".

The Funds intend to pay redemption  proceeds  within two business days and in no
event will  payment be made later than seven days after  receipt of a redemption
request in good order. Payments to investors who request to redeem shares within
a few days after a purchase paid for by check may be delayed until the Funds can
verify the check has been collected.

The Funds  reserve the right to suspend  redemptions  or to postpone the payment
therefore  when:  (a) trading on the New York Stock  Exchange is  restricted  as
determined by the Securities and Exchange Commission,  or the Exchange is closed
for other than customary  weekend and holiday  closings;  (b) the Securities and
Exchange  Commission  has  permitted  such  suspension;  or (c) an  emergency as
determined by the  Securities  and Exchange  Commission  exists,  making sale of
portfolio  securities  or  valuations  of the Funds'  net assets not  reasonably
practicable.

If an investor's account drops below $250 due to redemptions,  the Funds reserve
the right to redeem any remaining shares,  if after 30 days' notice,  additional
investments to bring the account value to $250 are not made.

HOW TO REDEEM SHARES

 BY MAIL--                           Send a "letter of instruction": a letter
 TO: 2203 GRAND AVENUE               specifying the name of the Fund, the 
     DES MOINES, IA 50312-5338       number of shares to be sold, your name, 
                                     your account number, and the additional 
                                     requirements listed below that apply to
                                     your particular account.

 TYPE OF REGISTRATION                REQUIREMENTS
 ________________________________    __________________________________________
 Individual, Joint Tenants,          Letter of instruction signed by all 
 Sole Proprietorship, Custodial      persons required to sign for the account,
 (Uniform Gifts or Transfers         exactly as it is registered, accompanied 
 To Minors Act), General Partners    by signature guarantee(s).

 Corporation, Association            Letter of instruction and a corporate 
                                     resolution signed by person(s) authorized 
                                     to act on the account, accompanied by 
                                     signature guarantee(s).

 Trust                               A letter of instruction signed by the 
                                     Trustee(s) (as Trustee), with a signature 
                                     guarantee. (If the Trustee's name is not 
                                     registered on your account, also provide 
                                     a copy of the trust document, certified 
                                     within the last 60 days.)

 If you do not fall into any of these registration  categories (e.g., Executors,
 Administrators,   Conservators   or   Guardians)   please   call  for   further
 instructions.

 A  signature  guarantee  is  designed  to  protect  you  and the  Fund  against
 fraudulent  transactions  by  unauthorized  persons.  A signature  guarantee is
 required for all persons registered on an account. A signature guarantee may be
 obtained from an eligible guarantor  institution,  as defined by the Securities
 and Exchange  Commission.  These institutions  include banks,  savings and loan
 associations, credit unions, brokerage firms, and others. The words, "SIGNATURE
 GUARANTEED"  must be stamped or typed near each  person's  signature and appear
 with the printed name,  title,  and signature of an officer and the name of the
 guarantor institution.  PLEASE NOTE THAT A NOTARY PUBLIC STAMP OR SEAL IS NOT A
 SIGNATURE GUARANTEE.
________________________________________________________________________________

                FOR ALL OPTIONS BELOW, PLEASE CALL 1-800-798-1819
________________________________________________________________________________

   BY EXCHANGE--                     You must meet the minimum investment 
                                     requirement of the other fund.  You can 
                                     only exchange between accounts with 
                                     identical names, addresses, and taxpayer 
                                     identification numbers.

   BY ELECTRONIC FUNDS               You must have applied for the Telephone 
   TRANSFER (ACH) OR WIRE--          Transfer feature on your application.  
                                     Allow two days via ACH.  Call before 
                                     10:00 a.m. for same day wire.
                                     $15.00 fee for bank wires.
<PAGE>
TABLE OF CONTENTS
     Expense Summary of Trust Shares.........................................2
     Highlights..............................................................3
     Financial Highlights....................................................4
     Investment Objectives, Policies and Restrictions........................7
     Liquid Assets...........................................................7
     Municipal Assets........................................................9
     Performance............................................................12
     Distributions and Taxes................................................13
     Organization and Shares of the Funds...................................14
     Management and Fees....................................................15
     Opening an Account.....................................................17
         Share Price........................................................17
         Purchasing Shares..................................................17
     Shareholder Services...................................................19
     Redeeming Shares.......................................................21

NO SALESMAN,  OR OTHER PERSON, HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO
MAKE ANY  REPRESENTATIONS,  OTHER THAN THOSE  CONTAINED IN THIS  PROSPECTUS,  IN
CONNECTION  WITH THE OFFER  CONTAINED IN THIS  PROSPECTUS AND, IF GIVEN OR MADE,
SUCH OTHER INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN
AUTHORIZED BY THE FUNDS OR BY IMG FINANCIAL SERVICES,  INC. THIS PROSPECTUS DOES
NOT  CONSTITUTE  AN OFFERING BY IMG  FINANCIAL  SERVICES,  INC., IN ANY STATE IN
WHICH SUCH OFFERING MAY NOT LAWFULLY BE MADE.
<PAGE>
LIQUID ASSETS FUND AND                                     INSTITUTIONAL SHARES
MUNICIPAL ASSETS FUND

                 2203 Grand Avenue, Des Moines, Iowa 50312-5338

IMG FINANCIAL SERVICES, INC......................................1-800-798-1819
                                                                   515-244-5426
________________________________________________________________________________

PROSPECTUS                                                   SEPTEMBER 30, 1997
________________________________________________________________________________

Liquid  Assets  Fund  and  Municipal  Assets  Fund,  each  of  these  a  "Fund",
(collectively,  the "Funds") are money  market  mutual funds  designed to enable
investors to meet short-term  goals.  Investors choose whichever Fund best suits
their needs and may, without charge,  exchange Funds as their investment outlook
or goals change.

Liquid  Assets  Fund  offers four  classes of shares and  Municipal  Assets Fund
offers three classes of shares.  This  Prospectus  describes the  "Institutional
Shares"  of each  Fund.  Institutional  Shares are  offered  to  individual  and
institutional  customers  (acting  on  their  own  behalf  or on the  behalf  of
individuals).  The Funds also offer  "Sweep  Shares"  and "Trust  Shares"  which
accrue daily  dividends in the same manner as  Institutional  Shares except that
each  class  bears  separate  distribution  and/or  shareholder   administrative
servicing  fees.  "S2  Shares"  are also  offered by Liquid  Assets  Fund.  (see
"Organization and Shares of the Funds").

LIQUID ASSETS FUND,  ("Liquid  Assets") seeks maximum current income  consistent
with safety of principal and  maintenance of liquidity.  MUNICIPAL  ASSETS FUND,
("Municipal  Assets")  seeks maximum  current  income exempt from federal income
tax,   consistent  with  safety  of  principal  and  maintenance  of  liquidity.
Institutional  Shares are  offered  and  redeemed at $1.00 per share under rules
which  allow the Funds to use the  amortized  cost  method of valuing the Funds'
assets.

AN  INVESTMENT IN SHARES OF THE FUNDS IS NOT INSURED OR GUARANTEED BY THE UNITED
STATES,  BY ANY STATE, OR BY THE FDIC, IS NOT A DEPOSIT OR OTHER OBLIGATION OF A
BANK, OR GUARANTEED BY A BANK, AND INVOLVES INVESTMENT RISKS, INCLUDING POSSIBLE
LOSS OF PRINCIPAL AMOUNT INVESTED.

UNDER  EXTRAORDINARY  CIRCUMSTANCES  THE VALUE OF SHARES MAY VARY FROM $1.00 AND
CONSEQUENTLY,  THERE CAN BE NO ASSURANCE THAT THE FUNDS WILL BE ABLE TO MAINTAIN
A STABLE NET ASSET VALUE OF $1.00 PER SHARE.

This  Prospectus  sets forth basic  information  about each Fund that  investors
should  know  before  investing  and should be  retained  for future  reference.
Statements of Additional  Information (as of the date of this Prospectus)  which
contain  more  detailed  information  about  each Fund have been  filed with the
Securities and Exchange Commission and are hereby incorporated by reference. The
Statements of Additional  Information  are available  free upon request from IMG
Financial Services, Inc., at the address and telephone number indicated above.

THESE  SECURITIES  HAVE NOT BEEN APPROVED OR  DISAPPROVED  BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES  COMMISSION,  NOR HAS THE SECURITIES
AND  EXCHANGE  COMMISSION  OR ANY  STATE  SECURITIES  COMMISSION  PASSED  ON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.

EXPENSE SUMMARY

The expense summary table is provided to assist you in understanding the various
costs and expenses that may be incurred  directly or indirectly as a shareholder
of either  Fund.  There  are no  transaction  fees  imposed  upon the  purchase,
redemption, or exchange of shares.

                                                      LIQUID          MUNICIPAL
                                                      ASSETS           ASSETS
ANNUAL FUND OPERATING EXPENSES (as a percentage of average net assets)
  Management Fees.................................     0.25%            0.25%
  Other Expenses..................................     0.20%            0.40%
  Total Fund Operating Expenses...................     0.45%            0.65%

For the period from  September  1, 1996 through  January 15,  1997,  the Advisor
voluntarily  waived a  portion  or all of  their  fees  and  reimbursed  certain
expenses of Municipal Assets.  Additional  operating expenses information may be
found under "Management and Fees".

EXAMPLE
You  would  pay the  following  expenses  on a $1,000  investment  in each  Fund
assuming,  (1) a (hypothetical) five percent annual return and (2) redemption at
the end of each time period.

                        1 Year         3 Years         5 Years        10 Years
  Liquid Assets          $  5            $14            $25              $57
  Municipal Assets       $  7            $21            $36              $81

EXPLANATION OF TABLE

THE  FOREGOING  SHOULD  NOT BE  CONSIDERED  A  REPRESENTATION  OF PAST OR FUTURE
EXPENSES OR RATES OF RETURN.  ACTUAL  EXPENSES OR RATES OF RETURN MAY BE MORE OR
LESS THAN THOSE  SHOWN.  The  Expense  Summary  and  Examples do not reflect any
charges that may be imposed by financial institutions on their customers.

The purpose of the foregoing  tables is to assist in  understanding  the various
costs and  expenses  that may be directly or  indirectly  borne by  investors in
Institutional Shares. Certain figures contained in the above tables are based on
amounts  incurred  during  each  Fund's  most  recent  fiscal year and have been
adjusted  as  necessary  to  reflect  current  services   provider  fees  and/or
reimbursements.   The   information   in  the  above  tables   relates  only  to
Institutional  Shares.  The Funds also offer Sweep Shares and Trust  Shares.  S2
Shares are also offered by Liquid Assets.  Long-term shareholders may eventually
pay more than the  economic  equivalent  of the maximum  front-end  sales charge
otherwise permitted by the National Association of Securities Dealers, Inc. Wire
transfers  may be used to transfer  federal  funds  directly  to/from the Funds'
custodian bank. A $15.00 fee may be charged to an individual shareholder account
for  redemption  by wire.  Please  refer to  "Management  and Fees" for  further
information. 

HIGHLIGHTS

The INVESTMENT  OBJECTIVE of Liquid Assets is maximum current income  consistent
with safety of  principal  and  maintenance  of  liquidity.  The Fund invests in
short-term debt  obligations  issued or guaranteed by the U.S.  government,  its
agencies or instrumentalities and repurchase  agreements  collateralized by such
obligations   including,   redeemable   Certificates   backed  by  Farmers  Home
Administration guaranteed loans and primarily, federally insured student loans.

The INVESTMENT  OBJECTIVE of Municipal  Assets is maximum  current income exempt
from federal income tax,  consistent with safety of principal and maintenance of
liquidity.  The Fund  invests  primarily in high  quality  short-term  municipal
securities which mature or have a demand feature exercisable in one year or less
from  the  date  of  acquisition.  See  "Investment  Objectives,   Policies  and
Restrictions".

The NET ASSET  VALUE,  that is, the price at which  shares of the Funds are sold
and redeemed, will be $1.00 per share, except under extraordinary circumstances.
See "Opening an Account -- Share Price".

SHARES OF EITHER FUND MAY BE  PURCHASED at the next  determined  net asset value
per share,  without a sales charge,  with an initial investment of at least $250
and  subsequent  purchases  of at least $25  (subject  to  certain  exceptions).
Purchases may be made by check,  wire,  electronic funds transfer and/or through
Participating Organizations. See "Purchasing Shares".

SHARES MAY BE REDEEMED  at their next  determined  net asset value by  exchange,
check, wire, and/or electronic funds transfer. See "Redeeming Shares".

The ADVISOR of the Funds is Investors  Management Group,  (the "Advisor"),  2203
Grand Avenue,  Des Moines,  Iowa  50312-5338,  a registered  investment  advisor
incorporated in June 1982. See  "Management  and Fees".  The Advisor is also the
transfer agent for the Funds.

The  Funds'  DISTRIBUTOR  is  IMG  Financial  Services,  Inc.,  a  wholly  owned
subsidiary  of the  Advisor.  IMG  Financial  Services,  Inc.,  is a  registered
broker/dealer and was incorporated in May 1992.

The Advisor is entitled to an INVESTMENT  ADVISORY FEE which is calculated daily
and paid  monthly at an annual rate of 0.25 percent of each Fund's net assets up
to $200,000,000, declining to 0.20 percent of average daily net assets in excess
of $600,000,000. For the period from September 1, 1996 through January 15, 1997,
the Advisor voluntarily agreed to waive all of its fee with respect to Municipal
Assets.  This waiver was voluntary and was  terminated on January 15, 1997.  See
"Management and Fees".

DIVIDENDS are declared  daily and paid monthly (see  "Distributions  and Taxes")
and will be automatically reinvested unless the shareholder elects otherwise.

FINANCIAL HIGHLIGHTS

Effective October 29, 1996, the Funds commenced offering three classes of shares
with differing fee structures,  designated  "Sweep Shares",  Trust Shares",  and
"Institutional Shares". The shares designated Sweep Shares were offered and sold
with the same fee structure as the single class of shares previously  offered by
the Funds.  Institutional  Shares were first issued by Liquid  Assets on October
29, 1996, and by Municipal Assets on March 28, 1997. Financial Highlights on the
following pages gives  information  about the Fund's financial  history on a per
share basis for Institutional Shares for the past fiscal year.

The Funds'  fiscal year has been July 1 through  June 30 since their  inception.
The financial information  expresses investment and distribution  information in
terms of a single share outstanding throughout each period as indicated.

The tables  presented  have been examined by KPMG Peat Marwick LLP,  independent
auditors,  whose  unqualified  report covering the year ending June 30, 1997, is
included in the Annual Report to shareholders of each Fund. The Annual Report is
included in each Fund's Statement of Additional Information and will be provided
upon request to the address and  telephone  number on Page 1 of this  Prospectus
without charge.

SELECTED DATA FOR A SHARE OF
EACH FUND OUTSTANDING
THROUGHOUT EACH PERIOD                         1997
____________________________________________________

LIQUID ASSETS FUND - INSTITUTIONAL SHARES

Net Asset Value
Beginning of Period                        $   1.000

Net Investment Income                          .052

Dividends Distributed                         (.052)
                                           ---------
Net Asset Value
End of Period                              $   1.000
                                           =========

Total Return                                   5.19%

Ratio of Expenses to
Average Net Assets                             0.45%

Ratio of Net Income to
Average Net Assets                             5.19%

Net Assets
End of Period (000 Omitted)                $   2,356

SELECTED DATA FOR A SHARE OF
EACH FUND OUTSTANDING
THROUGHOUT EACH PERIOD        1997
____________________________________

MUNICIPAL ASSETS FUND - INSTITUTIONAL SHARES

Net Asset Value
Beginning of Period          $1.000

Net Investment Income          .034

Dividends Distributed         (.034)
                             -------
Net Asset Value
End of Period                $1.000
                             =======

Total Return                  3.42%

Ratio of Expenses to
Average Net Assets*           0.41%

Ratio of Net Income to
Average Net Assets            3.42%

Net Assets
End of Period (000 Omitted)   $7

* During the year ended June 30, 1997,  the Advisor  voluntarily  waived certain
  fees.  Absent this  waiver,  the ratio of expenses to average net assets would
  have been 0.65 percent.

INVESTMENT OBJECTIVES, POLICIES AND RESTRICTIONS

LIQUID ASSETS

The investment  objective of Liquid Assets is maximum current income  consistent
with safety of principal and  maintenance of liquidity.  The Fund invests in the
following  money  market  instruments  maturing in 397 days or less from time of
investment, (with certain exceptions):

(1)    Obligations issued or guaranteed by the U.S.  government or any agency or
       instrumentality  thereof. Such securities will include those supported by
       the full faith and credit of the United  States  Treasury or the right of
       the agency or  instrumentality  to borrow from the  Treasury,  as well as
       those   supported   only  by  the  credit  of  the   issuing   agency  or
       instrumentality.

(2)    Repurchase  agreements involving securities in the immediately  foregoing
       categories.  A repurchase  agreement involves the sale of such securities
       to the Fund with the  concurrent  agreement  of the seller to  repurchase
       them at a  specified  time and  price to yield  an  agreed  upon  rate of
       interest.  Repurchase  agreements  may  involve  certain  risks which are
       described in greater detail in the Statement of Additional Information.

(3)    Redeemable    interest-bearing    trust   certificates   ("Student   Loan
       Certificates") issued by the Iowa Student Loan Trust and/or other Student
       Loan Trusts established by the Fund, ("Student Loan Trusts"), created for
       the sole purpose of  purchasing  from banks  (which  qualify as "eligible
       lenders")  federally  insured  student  loans  originated  by banks.  The
       Student Loan Certificates  will have original  maturities of no more than
       397 days but will be redeemable by the Fund at their face amount upon not
       more than five days'  written  notice to the issuing  Student Loan Trust.
       Further  details  concerning  the  Student  Loan  Trusts  and the  Fund's
       investments  in Student Loan  Certificates  are found in the Statement of
       Additional Information.

(4)    Redeemable  interest-bearing ownership certificates ("FmHA Certificates")
       issued  by one or more  guaranteed  loan  trusts  ("FmHA  Trusts"),  each
       created  for the  purpose of  acquiring  participation  interests  in the
       guaranteed portion of Farmer's Home  Administration  ("FmHA")  guaranteed
       loans.  The FmHA  Certificates  will have original  maturities of no more
       than 397 days but will be  redeemable  by the Fund at their  face  amount
       upon not more than five days'  written  notice to the issuing FmHA Trust.
       Further details  concerning the FmHA Trusts and the Fund's  investment in
       FmHA Certificates and FmHA guaranteed loans are found in the Statement of
       Additional Information.

In accordance with procedures  adopted pursuant to Rule 2a-7 under the 1940 Act,
the Fund limits its  investments  to those U.S.  dollar-denominated  instruments
determined  by the Board of Directors to present  minimal  credit risk and which
are "Eligible Securities" as that term is defined by Rule 2a-7. Pursuant to Rule
2a-7,  the Fund  shall not have  invested  more than five  percent  of its total
assets in securities issued by a single issuer.  For additional  requirements of
Rule 2a-7,  see  "Opening  an Account -- Share  Price".  Assets of the Fund will
consist of  securities  with  maturities of 397 days or less at date of purchase
or, if  maturing  beyond 397 days,  will be backed by  Liquidity  and  Servicing
Agreements  or Guaranteed  Funding  Agreements  and will have variable  interest
rates  adjustable  at least  semiannually.  In  determining  whether  particular
variable  rate  investments  backed by Liquidity  and  Servicing  Agreements  or
Guaranteed  Funding  Agreements may be made, the period remaining until maturity
will be deemed to be the longer of the demand notice period  required before the
Fund is  entitled  to  receive  payment  of the  principal  amount or the period
remaining  until  the next  interest  adjustment.  The  dollar-weighted  average
maturity of Fund  investments  will be 90 days or less,  determined  in the same
manner.  While the  underlying  security in a  repurchase  agreement  may have a
maturity of more than 397 days, the repurchase  agreement  itself will terminate
in less than 397 days,  and  typically  within a few days.  The Fund  intends to
invest at least 25 percent of its total  assets in  Student  Loan  Certificates,
and/or FmHA Certificates,  except when such investments are either not available
in  sufficient  quantity or do not carry  yields  competitive  with  alternative
investments.

It is the policy of the Fund that any illiquid securities  (including repurchase
agreements of more than seven days duration) may not constitute,  at the time of
purchase  or at any time,  more than ten  percent  of the value of the total net
assets of the Fund.

As a fundamental policy, the Fund does not intend to concentrate its investments
in any one industry and pursuant to Section  18(f) of the 1940 Act, the Fund may
not issue senior securities.  As a general policy, it is the Fund's intention to
hold investments until they mature.  However, in an effort to increase portfolio
yields the Fund may periodically trade securities to take advantage of perceived
disparities between markets for various short-term money market instruments.  It
is also possible that  redemptions of Fund shares could  necessitate the sale of
portfolio  investments  prior to  maturity  and at times when such sale would be
undesirable because of unfavorable market conditions.

While  investments  by the  Fund  will be  confined  to high  quality  financial
instruments,  the complete  elimination  of risk is not possible.  Under certain
circumstances   described  in  more  detail  in  the   Statement  of  Additional
Information,  the net asset  value of Fund  shares  could  decrease.  It is also
possible  Participating  Banks or borrowers  will default on the  provisions  of
their  agreements  with  the  Fund or that  banks  will  default  on  repurchase
agreements  with the Student Loan Trusts or the FmHA  Trusts,  which could cause
the net asset value per share to decrease.

In light of these various  contingencies,  there can be no  assurances  the Fund
will achieve its investment objectives.

The Fund has adopted a number of investment  policies and restrictions,  some of
which can be changed by the Board of  Directors.  Others may be changed  only by
holders of a majority  of the  outstanding  shares and  include  the  following:
Without shareholder approval the Fund may not: (1) purchase any securities other
than those described  above; (2) invest more than 80 percent of its total assets
in Student Loan Certificates and/or FmHA Certificates; (3) purchase or sell real
estate (other than short-term loans secured by real estate or interests  therein
or loans to companies which invest in or engage in other  activities  related to
real estate), commodities or commodity contracts, interests in oil, gas or other
mineral exploration or development programs;  (4) make short sales of securities
or  maintain  a short  position  or write,  purchase,  or sell  puts  (excluding
repayment and  guarantee  arrangements  on loan  participations  purchased  from
Participating  Banks),  calls,  straddles,  spreads or combinations thereof; (5)
make loans to other  persons,  provided  the Fund may invest up to 80 percent of
its total assets in Student Loan Certificates or FmHA Certificates, as described
in (2) above, and may make the investments and enter into repurchase  agreements
as  described  above;  (6)  invest  in  securities  with  legal  or  contractual
restrictions  on  resale  (except  for  repurchase   agreements,   Student  Loan
Certificates,  and FmHA  Certificates) or for which no ready market exists;  (7)
enter into repurchase agreements if, as a result thereof, more than five percent
of the  Fund's  total  assets  (taken  at  market  value  at the  time  of  such
investment)  would be subject to  repurchase  agreements  maturing  in more than
seven days.

The foregoing investment  restrictions are considered fundamental policies which
cannot be changed without the approval of a "majority" of the Fund's outstanding
voting  securities,  that is, by (a) 67 percent or more of the securities voting
at a special or annual meeting if more than 50 percent of the outstanding shares
of Common Stock are  represented  at such meeting in person or by proxy;  or (b)
more than 50 percent of the  outstanding  Common Stock,  whichever is less.  The
Statement  of  Additional  Information  includes  discussion  of  certain  other
investment  policies  and  restrictions,  some  of  which  are  also  considered
fundamental and may not be changed without shareholder approval.

MUNICIPAL ASSETS

The investment  objective of Municipal  Assets is maximum  current income exempt
from federal income tax,  consistent with safety of principal and maintenance of
liquidity.  The Fund invests in the following types of money market  instruments
maturing in 397 days or less from time of investment (with certain  exceptions),
as defined herein:

(1)    Tax-exempt debt  obligations  issued by state and municipal  governmental
       units and public  authorities  within the United States and participation
       interests therein.  With few exceptions such obligations will be nonrated
       and of  limited  marketability.  However,  they  will be backed by demand
       repurchase  commitments  of the  issuers  thereof  and  irrevocable  bank
       letters  of  credit or  guarantees  (collectively  referred  to herein as
       "Liquidity Agreements").  The Liquidity Agreements will permit the holder
       of the securities to demand payment of the unpaid principal  balance plus
       accrued  interest upon a specified number of days' notice either from the
       issuer  or  by  drawing  on an  irrevocable  bank  letter  of  credit  or
       guarantee.  In addition,  all obligations with maturities longer than 397
       days from date of purchase  will, by their terms,  bear rates of interest
       that are adjusted upward or downward no less frequently than semiannually
       by means of a formula  intended  to reflect  market  changes in  interest
       rates.  Certain  types of industrial  development  bonds issued by public
       bodies  to  finance  the   construction   of  industrial  and  commercial
       facilities and equipment are also purchased.  The Statement of Additional
       Information  contains further details  concerning the Fund's policies and
       procedures with respect to investments in such tax-exempt obligations and
       participation interests.

(2)    High quality  tax-exempt debt  obligations  issued by state and municipal
       governments and by public  authorities,  including issues sold as interim
       financing in anticipation of tax  collections,  revenue  receipts or bond
       sales, and tax-exempt  Project Notes secured by the full faith and credit
       of the United States.  Such  obligations will be purchased only if backed
       by the full  faith and  credit of the  United  States or rated  Aaa,  Aa,
       MIG-1, MIG-2 or Prime-1 by Moody's Investors  Service,  Inc., or AAA, AA,
       or A-1 by Standard & Poor's Corporation.  Nonrated securities may also be
       purchased  if  determined  by the  Fund's  board  of  directors  to be of
       comparable quality to the rated securities in which the Fund may invest.

(3)    Taxable obligations issued or guaranteed by agencies or instrumentalities
       of the U.S.  government  may be acquired from time to time on a temporary
       basis for defensive purposes.

(4)    Repurchase  agreements  involving  securities in the immediate  foregoing
       category.  A repurchase agreement involves the sale of such securities to
       the Fund with the concurrent  agreement of the seller to repurchase  them
       at a specified time and price,  to yield an agreed upon rate of interest.
       Repurchase  agreements  may involve  certain risks which are described in
       greater detail in the Statement of Additional Information.

In accordance with procedures  adopted pursuant to Rule 2a-7 under the 1940 Act,
the Fund limits its  investments  to those U.S.  dollar-denominated  instruments
determined  by the Board of Directors to present  minimal  credit risk and which
are "Eligible Securities" as that term is defined by Rule 2a-7. Pursuant to Rule
2a-7,  the Fund shall not invest more than five  percent of its total  assets in
securities issued by a single issuer. For additional  requirements of Rule 2a-7,
see  "Opening  an Account -- Share  Price".  Assets of the Fund will  consist of
securities  with  maturities  of 397  days or less at date of  purchase  or,  if
maturing beyond 397 days,  securities  which are backed by Liquidity  Agreements
and which have variable  interest rates  adjustable at least  semi-annually  and
upon the  adjustment  of the interest rate the value of the  securities  will be
approximately  equal to par. In  determining  whether  particular  variable rate
investments  backed by Liquidity  Agreements may be made,  the period  remaining
until  maturity  will be deemed to be the  longer of the  demand  notice  period
required before the Fund is entitled to receive payment of the principal  amount
or the period remaining until the next interest adjustment.  The dollar-weighted
average maturity of Fund investments will be 90 days or less,  determined in the
same manner.

Under normal market conditions, the Fund as a matter of fundamental policy, will
invest at least 80 percent of its total net assets in tax-exempt securities, the
interest on which is exempt from federal  income tax,  except to the extent that
some or all of  which  may be  subject  to the  alternative  minimum  tax.  This
fundamental  policy may not be changed without the approval of a majority of the
Fund's  outstanding  voting  securities.  It is the  policy of the Fund that any
illiquid  securities may not constitute,  at the time of purchase or at anytime,
more than ten percent of the value of the total net assets of the Fund. The Fund
does not intend to concentrate  its investments in any one industry and pursuant
to Section 18(f) of the 1940 Act may not issue senior securities.

As a general policy,  it is the Fund's intention to hold investments  until they
mature or until immediately  prior to the expiration of an applicable  Liquidity
Agreement.  However,  in an effort to increase  portfolio  yields,  the Fund may
periodically trade securities to take advantage of perceived disparities between
markets for various  short-term  money market  instruments.  It is also possible
that  redemptions  of Fund  shares  could  necessitate  the  sale  of  portfolio
investments  prior to maturity and at times when such sale would be  undesirable
because of unfavorable market conditions.

New issues of tax-exempt  debt  obligations are usually offered on a when-issued
basis with the  securities  to be delivered and paid for  approximately  45 days
following the initial purchase commitment.  The Fund may occasionally enter into
such commitments, subject to certain limitations and procedures discussed in the
Statement of Additional Information.

While  investments  by the  Fund  will be  confined  to  high-quality  financial
instruments,  the complete  elimination  of risk is not possible.  Under certain
circumstances,   described  in  more  detail  in  the  Statement  of  Additional
Information,  the net asset  value of Fund  shares  could  decrease.  It is also
possible an issuer or bank will  default on the  provisions  of their  Liquidity
Agreements,  which  could cause the net asset  value per share to  decrease.  In
light of these various  contingencies,  there can be no assurances the Fund will
achieve its investment objectives.

The Fund has adopted a number of investment  policies and restrictions,  some of
which can be changed by the Board of  Directors.  Others may be changed  only by
holders of a majority  of the  outstanding  shares and  include  the  following:
Without shareholder approval the Fund may not: (1) purchase any securities other
than those described under "Investment  Policy"; (2) invest more than 80 percent
of its total assets in tax-exempt  fixed and variable rate debt  obligations (or
participation  interests  therein) issued by state and local  governmental units
within the United  States which are backed by Liquidity  Agreements;  (3) invest
more  than  five  percent  of its  total  assets  (determined  as of the date of
purchase) in tax-exempt  obligations or participation  interests therein subject
to  Liquidity  Agreements  issued by any one  bank;  (4)  purchase  or sell real
estate,  commodities  or  commodity  contracts,  interests  in oil, gas or other
mineral exploration or development programs;  (5) make short sales of securities
or  maintain  a short  position  or write,  purchase,  or sell  puts  (excluding
Liquidity  Agreements covering certain tax-exempt  obligations  purchased by the
Fund),  calls,  straddles,  spreads or combinations  thereof;  (6) make loans to
other persons,  provided the Fund may make investments and enter into repurchase
agreements  as  described   above;  (7)  invest  in  securities  with  legal  or
contractual  restrictions  on resale  (except for  tax-exempt  debt  obligations
subject to Liquidity  Agreements) or for which no ready market exists; (8) enter
into a Liquidity  Agreement  with any bank  unless such bank is a United  States
bank which has a record,  together with predecessors,  of at least five years of
continuous  operations;  (9) enter into  repurchase  agreements  if, as a result
thereof,  more than five  percent of the Fund's  total  assets  (taken at market
value at the time of such investment) would be subject to repurchase  agreements
maturing in more than seven days; and (10) enter into Liquidity  Agreements with
any bank if five percent or more of the securities of such bank are owned by the
Advisor or by  directors  and  officers  of the Fund or the  Advisor,  or if any
director or officer of the Fund or the Advisor owns more than 1/2 percent of the
voting securities of such bank.

The foregoing investment  restrictions are considered fundamental policies which
cannot be changed without the approval of a "majority" of the Fund's outstanding
voting  securities,  that is, by (1) 67 percent or more of the securities voting
at a special or annual meeting if more than 50 percent of the outstanding shares
of Common Stock are  represented  at such meeting in person or by proxy;  or (2)
more than 50 percent of the  outstanding  Common Stock,  whichever is less.  The
Statement  of  Additional  Information  includes  discussion  of  certain  other
investment  policies  and  restrictions,  some  of  which  are  also  considered
fundamental and may not be changed without shareholder approval.

PERFORMANCE

Performance  of each Fund may be quoted in advertising in terms of current yield
and  effective  yield.  CURRENT  YIELD  refers  to the  income  generated  by an
investment  in  either  Fund over a  seven-day  period,  expressed  as an annual
percentage rate. EFFECTIVE YIELD is calculated similarly but assumes that income
earned  from the  investment  is  reinvested.  Effective  yield will be slightly
higher than  current  yield  because of the  compounding  effect of this assumed
reinvestment.

The current and effective  yields for the seven-day  period ended June 30, 1997,
for Liquid Assets and Municipal  Assets were 5.30 percent and 5.43 percent,  and
3.85 percent and 3.92 percent, respectively.

Performance of the Funds may also be compared to other mutual funds with similar
investment  objectives,  relevant  indices or rankings  prepared by  independent
services or other  financial  publications,  or yields on deposits at  financial
institutions.  Unlike the Funds, deposit accounts at financial  institutions are
generally FDIC insured and do not fluctuate to the extent of the Funds.

Additionally,  Municipal Assets may quote a taxable-equivalent  yield based on a
stated  income  tax  rate.  Please  see  each  Fund's  Statement  of  Additional
Information for further  discussion of the manner in which yields are calculated
and the comparative performance data which may be used.

Of  course,  the  Funds'  yields  are not  fixed  nor is  principal  guaranteed.
Performance  will  fluctuate  and any  quotation  should  not be  considered  as
representative of the future performance of either Fund.

DISTRIBUTIONS AND TAXES

Dividends  from the net income of each Fund are declared  daily on each business
day and paid monthly to holders of record  immediately  before 3:00 p.m. Central
Time. Dividends are automatically reinvested in Institutional Shares unless cash
payment has been  requested.  If a shareholder  redeems the entire amount in his
account during the month,  dividends  credited to the account from the beginning
of the  month  through  the  date of  redemption  are paid  with the  redemption
proceeds.

Dividends on each class of shares are determined in the same manner and are paid
in the same amounts irrespective of class, except that each class bears separate
distribution and/or shareholder  servicing fees (see "Organization and Shares of
the Funds").

Dividends  declared in October,  November,  or December of any year,  payable to
shareholders  of record on a specified  date in such  months,  will be deemed to
have been received by the  shareholders  and paid by the Funds on December 31 of
such year, in the event that such  dividends are actually paid during January of
the following year.

Each Fund intends to qualify as a regulated  investment  company by distributing
substantially  all of its taxable net income,  including  any  realized  capital
gains,  and thus will not incur any  Federal  income  taxes.  Shareholders  will
receive  taxable  dividend  income,  tax-exempt  dividend  income and/or capital
gains, as the case may be, from  distributions  whether paid in cash or received
in the form of additional shares.

Dividends  derived from interest on federally  tax-exempt debt obligations owned
by Municipal Assets are intended to constitute "exempt-interest dividends" which
are  generally  not Federally  taxable to  shareholders,  although some could be
includable for purposes of the alternative  minimum tax.  Dividends derived from
other interest and the  realization of capital gains are taxable to shareholders
whether or not reinvested.

Municipal  Assets  expenses  will be allocated  between  tax-exempt  and taxable
income in the same proportion as the Fund's tax-exempt income bears to the total
of such exempt  income and its gross  income  (excluding  from gross  income the
excess of capital gains over capital losses).

Promptly after the end of each calendar year,  each  shareholder  will receive a
statement of the Federal  income tax status of all dividends  and  distributions
paid during the year.  This  discussion is only a summary and relates  solely to
Federal tax matters.  Further  discussion of the Federal Income Tax consequences
of an  investment  in the  Fund  is  provided  in the  Statement  of  Additional
Information.  Dividends may also be subject to local taxation.  Shareholders are
encouraged to consult with their personal tax advisors.

ORGANIZATION AND SHARES OF THE FUNDS

The Funds are open-end, diversified management investment companies organized as
Iowa  corporations.  Liquid Assets was  incorporated in June 1982 under the name
Iowa Liquid Assets Fund,  Inc.,  and changed its name to IMG Liquid Assets Fund,
Inc., in October 1987. Municipal Assets was incorporated under the name Iowa Tax
Free Liquid  Assets Fund,  Inc., in January 1983 and changed its name to IMG Tax
Exempt  Liquid Assets Fund,  Inc.,  in October 1987. On September 25, 1996,  the
Funds each increased  authorized capital to five billion shares of Common Stock,
par value $.001 per share,  changed the Fund's  names to Liquid  Assets Fund and
Municipal Assets Fund,  respectively,  and amended their respective  Articles of
Incorporation  to  authorize  the  Boards  of  Directors  to  issue  one or more
additional   classes  of  shares.   Simultaneously,   the  Boards  approved  the
redesignation  of the  existing  shares as "Sweep  Shares"  and the  issuance of
"Trust  Shares" and  "Institutional  Shares".  On February 3, 1997, the Board of
Directors authorized the issuance of "S2 Shares" by Liquid Assets. Management of
the  affairs of each Fund is  legally  vested in its Board of  Directors,  which
meets  periodically  to review  activities  of the Fund and the  Advisor  and to
consider other policy matters pertaining to the Fund.

Institutional Shares of the Funds are described in this Prospectus. Sweep Shares
and Trust Shares and S2 Shares are offered in separate Prospectuses which may be
obtained  by calling IFS at  1-800-798-1819  or writing to IFS at the address on
the  cover  of this  Prospectus.  All  shares  are  offered  to  individual  and
institutional  investors  acting  on their  own  behalf  or on  behalf  of their
customers and bear their pro rata portion of all operating  expenses paid by the
Funds,  except  that Sweep  Shares,  Trust  Shares and S2 Shares  bear  separate
distribution  and/or shareholder  servicing fees.  Institutional  Shares bear no
distribution and/or shareholder servicing fees.

Each class of shares offers different privileges. Sweep Shares and S2 Shares are
normally offered through  financial  institutions  providing  automatic  "sweep"
investment  programs to their  customers,  and offer a check writing  privilege.
Trust  Shares  are  normally  offered  through  trust  organizations  or  others
providing shareholder services such as establishing and maintaining accounts and
records for their customers who invest in Trust Shares,  assisting  customers in
processing  purchase,  exchange  and  redemption  requests,  and  responding  to
customers'  inquiries  concerning their  investments.  Institutional  Shares are
available  directly  from the  Distributor  only and offer only the Exchange and
Telephone  Transfer  services.  Each  class of shares is  exchangeable  only for
shares of the same class.  Financial  institutions  selling or  servicing  Sweep
Shares,  Trust  Shares and S2 Shares may  receive  different  compensation  with
respect to one class over another.

Shareholders are entitled to one vote for each full share held and proportionate
fractional  votes  for  fractional  shares  held.  Shares of each Fund will vote
together and not by class unless otherwise  required by law or permitted by each
Fund's Board of Directors. All shareholders of each Fund will vote together as a
single class on matters relating to the Fund's  investment  advisory  agreement,
investment objective and fundamental policies.  Only holders of Sweep Shares and
S2 Shares  will vote on  matters  relating  to the  Distribution  Plan for Sweep
Shares  and S2  Shares.  Only  holders  of Trust  Shares  will  vote on  matters
pertaining to the Shareholder Services Plan for Trust Shares.

Shares of the Funds have  non-cumulative  voting  rights and,  accordingly,  the
holders of more than 50 percent of each Fund's outstanding shares  (irrespective
of class) may elect all of the Directors.  Shares have no preemptive  rights and
only such  conversion and exchange  rights as each Fund's Board may grant in its
discretion.  When issued for payments as described  in this  Prospectus,  shares
will be fully paid and nonassessable.

MANAGEMENT AND FEES

Investors Management Group, ("IMG") manages the investments and business affairs
of the  Funds.  IMG is a  registered  Investment  Advisor  located at 2203 Grand
Avenue,  Des Moines,  Iowa 50312-5338.  IMG Financial  Services,  Inc., a wholly
owned subsidiary of IMG, is a registered  broker/dealer and serves as the Funds'
Underwriter.  Since IMG was founded in 1982,  its  principal  business  has been
providing continuous  investment management to pension and profit-sharing plans,
insurance  companies,   public  agencies,   banks,   endowments  and  charitable
institutions,  other mutual funds,  individuals and others. As of June 30, 1997,
IMG had  approximately  $1.6  billion in equity,  fixed  income and money market
assets  under  management.  David W.  Miles and Mark A.  McClurg  are  principal
shareholders of IMG.

The Funds are  managed by Jeffrey  D.  Lorenzen,  CFA,  Managing  Director.  Mr.
Lorenzen is a fixed income strategist and is a member of IMG's Investment Policy
Committee.  Prior to joining IMG in 1992, his experience  includes  serving as a
securities  analyst and corporate  fixed income analyst for The Statesman  Group
from 1989 to 1992.  He received  his Masters of Business  Administration  degree
from Drake  University and his Bachelor of Business  Administration  degree from
the University of Iowa.

Under a management  contract between each Fund and IMG, a fee is paid to IMG for
investment  advisory  services.  Each Fund is responsible  for paying  operating
expenses not assumed by IMG.

The  management  fee for each Fund is  calculated  daily and paid  monthly.  The
maximum  management  fee for each Fund is 0.25  percent of each  Fund's  average
daily net assets up to $200,000,000. The management fee declines to 0.20 percent
of average daily net assets in excess of $600,000,000. For the fiscal year ended
June 30, 1997,  fees paid by Liquid Assets and Municipal  Assets to IMG amounted
to approximately  0.25 percent of Liquid Assets average net assets,  or $428,125
and  approximately  0.15  percent of  Municipal  Assets  average net assets,  or
$51,871.

From time to time, IMG may voluntarily  waive all or a portion of the management
fee and/or absorb certain  expenses of a Fund or class of shares without further
notification  of the  commencement  or termination of such waiver or absorption.
Any such waiver will have the effect of lowering the overall expense ratio for a
Fund or class of shares and  increasing  the overall  yield to investors in that
Fund or class of shares at the time any such amounts are waived and/or absorbed.
For the period  September 1, 1996  through  January 15,  1997,  IMG  voluntarily
waived  $26,566 of its advisory fees on Municipal  Assets.  Without such waiver,
IMG would have been entitled to receive a fee at the annual rate of 0.25 percent
of the average daily net assets of Municipal Assets.

IMG also acts as transfer  agent and dividend  paying  agent for the Funds,  and
maintains all shareholder records. Each Fund pays fees based upon asset size and
number of accounts.

Expenses of operating  each Fund include fees of directors not  affiliated  with
the Investment  Advisor,  custodial  fees,  taxes,  auditing and legal expenses,
Securities and Exchange  Commission fees, state securities  qualification  fees,
costs of preparing and printing  prospectuses  for  regulatory  purposes and for
distribution to shareholders,  certain insurance premiums,  transfer agent fees,
the publishing of reports to  shareholders,  and other expenses  relating to the
operation  of each  Fund  which  are not  expressly  assumed  by the  Investment
Advisor.

AMCORE Investment Group,  N.A.,  Rockford,  Illinois,  acts as custodian for the
Funds' cash and investments.

OPENING AN ACCOUNT

The Funds require a completed and signed  application (which is attached) at the
time you open  each new  account.  Additional  paperwork  may be  required  from
corporations,  associations and certain fiduciaries.  IF YOU HAVE QUESTIONS CALL
IFS AT 1-800-798-1819 FROM 8:00 A.M. TO 4:30 P.M. CENTRAL TIME.

SHARE PRICE

The shares of each Fund are sold without a sales charge.  The price of one share
is its "net asset value" or NAV (generally $1.00). NAV is computed by adding the
value  of each  Fund's  investments,  plus  cash  and  other  assets,  deducting
liabilities  and then  dividing the result by the number of shares  outstanding.
The NAV of each Funds'  shares is  determined  twice each business day, at 11:00
a.m. Central Time and at the close of the New York Stock Exchange (normally 3:00
p.m. Central Time). The Funds are open for business each day the Federal Reserve
is open.

Your purchase will be processed at the next NAV calculated after your investment
has been  converted  to federal  funds.  If you invest by check,  the Funds must
generally  allow one or more  days for  conversion  into  federal  funds  before
accepting your purchase.

Rule 2a-7 under the Investment  Company Act of 1940 permits the Funds to compute
net asset value per share using the amortized  cost method of valuing  portfolio
securities. As a condition for using the amortized cost method of valuation, the
Board of Directors  established  procedures  to stabilize  each Fund's net asset
value at $1.00 per Share.  These procedures are described in more detail in each
Fund's Statement of Additional Information.

Under the amortized cost method of valuation,  a security is initially valued at
cost on the date of  purchase  and,  thereafter,  any  discount  or  premium  is
amortized  on a  straight-line  basis to maturity,  regardless  of the effect of
fluctuating interest rates on the market value of the security.  U.S. government
obligations,  Student Loan Certificates and FmHA Certificates, which are subject
to mandatory repurchase at their original purchase price, investments in taxable
and tax-exempt  debt  obligations  rated by a recognized  bond rating agency and
regularly traded in the secondary  market,  and nonrated fixed and variable rate
tax-exempt obligations and participation interests therein, not regularly traded
in the secondary  market but subject to Liquidity  Agreements  will be valued at
amortized cost. Other assets are valued at a fair value determined in good faith
by the board of directors of each Fund.

PURCHASING SHARES

Shares of each Fund may be purchased directly from IMG Financial Services, Inc.,
as the  distributor.  Shares may also be  purchased  by  customers  of qualified
banks, savings and loan associations, broker/dealers, investment advisory firms,
and other organizations  ("Participating  Organizations") that have entered into
servicing  agreements with the Distributor.  The  Participating  Organization is
responsible for transmitting purchase orders directly to the Fund's Distributor.
A Participating  Organization  may elect to hold record  ownership of shares for
its  customers  and to  show  beneficial  ownership  of  shares  on the  account
statements it provides to them. In the alternative, a Participating Organization
may elect to establish  its  customers'  accounts of record with IMG as transfer
agent  for  the  Funds.   Generally,   shares  purchased  through  Participating
Organizations  will be held by the Participating  Organization as shareholder of
record.

Shares of each Fund are  offered  without  any  purchase  or  redemption  charge
imposed by the Fund.  The minimum  initial  investment  that may be made in each
Fund is $250. Subsequent investments in each Fund must be made in amounts of not
less  than  $25,   except  where   purchases  are  made  through   Participating
Organizations in which case there is no minimum. Participating Organizations may
aggregate their customers' purchases to satisfy the required minimums.

Purchases  may be effected on business  days when the Advisor,  Distributor  and
Custodian  are open for  business.  The Funds  reserve  the right to reject  any
purchase order,  including purchases made with foreign and third party drafts or
checks.

A purchase order for Institutional  Shares received and accepted by the Funds by
10:00 a.m. Central Time on a business day is effected at the net asset value per
share  calculated as of 11:00 a.m.  Central Time, and investors will receive the
dividend  declared that day, IF THE CUSTODIAN HAS RECEIVED THE PURCHASE PRICE IN
FEDERAL FUNDS OR OTHER  IMMEDIATELY  AVAILABLE  FUNDS BY 3:00 P.M.  CENTRAL TIME
THAT DAY. A purchase order for  Institutional  Shares  received after 10:00 a.m.
Central  Time and prior to 3:00 p.m.  Central  Time on a business  day for which
such funds have been  received by 3:00 p.m.  Central Time will be effected as of
3:00 p.m.  Central  Time,  and will begin to accrue  dividends on the  following
business day. If federal funds are not available by 3:00 p.m.  Central Time, the
order  will be  canceled.  Payment  for  orders  which are not  accepted  or are
canceled will be returned after prompt inquiry to the transmitting organization.

While the Funds  themselves do not presently  levy sales,  redemption or account
service charges,  Participating  Organizations  may elect to do so and the Funds
may elect to do so in the future.  Investors should inquire regarding the nature
and costs of services  provided by Participating  Organizations and determine if
such  services  are  desired,  because the costs  thereof will reduce the Funds'
yields to the investor below that obtainable by investing in the Funds directly.

Customers  wishing to purchase shares through their  Participating  Organization
should contact such entity directly for appropriate instructions. (For a list of
the Participating Organizations in your area, call IMG Financial Services, Inc.,
at  1-800-798-1819  or  515-244-5426.)  Direct  investors may purchase shares in
accordance with the procedures described below, "Purchase Procedures".

Certificates representing Fund shares purchased will not be issued. However, all
purchases are confirmed in writing to the investor and credited to their account
in the shareholder records maintained by the Transfer Agent. Investors will have
the same rights to their shares as if certificates had been issued.

PURCHASE PROCEDURES

    METHOD              INITIAL INVESTMENT              ADDITIONAL INVESTMENT
 
 BY MAIL                 $250 (minimum)                   $25 (minimum)
                    Please make your check pay-      Please make your check pay-
                    able to the Fund selected and    able to the Fund selected,
                    mail to the address indicated    with your account number
                    on the application.              on the check and mail to
                                                     the address printed on 
                                                     your account statement.

 BY WIRE            Please call IMG Financial        See instructions below.
                    Services, Inc., for an account
                    number before initial invest-
                    ment at 1-800-798-1819 or
                    515-244-5426.

 Federal  Funds should be wired to:  Federal  Reserve Bank of Chicago for AMCORE
 Investment Group, N.A., Rockford, Illinois, together with the name of the Fund,
 your account number and names.

 Please  note that when  accounts  are opened by wire you must send a  completed
 application at your earliest convenience.  Your application must be received by
 the Fund before any instructions for redemption will be accepted.

 BY ELECTRONIC      Not available for initial        Shareholders who have an
 FUNDS TRANSFER     purchase.                        account with an institution
 (ACH)                                               which is a member of the
                                                     Automated Clearing House,
                                                     may elect to purchase Fund
                                                     shares via electronic funds
                                                     transfer.  Select this 
                                                     service on your application
                                                     or call the Fund.

SHAREHOLDER SERVICES

Some shareholder  services may not be available if shares are purchased  through
Participating   Organizations.   Call   IMG   Financial   Services,   Inc.,   at
1-800-798-1819 for more information.

EXCHANGE  PRIVILEGE.  You may exchange  Institutional  Shares of either Fund for
Institutional Shares in the other Fund described in this Prospectus. An exchange
involves a redemption of the shares of the Fund being  liquidated and a purchase
of the shares of the Fund in which the  redemption  proceeds are to be invested.
The exchange  privilege is offered as a convenience to  shareholders  and is not
intended to be a means of  speculating  on  short-term  movements in  securities
prices by transactions  involving frequent  purchases and sales of shares.  Each
Fund reserves the right at any time and without prior notice, to suspend, limit,
modify or terminate exchange privileges or their use by individual  shareholders
in order to prevent  transactions  considered to be  disadvantageous to existing
shareholders.

TELEPHONE TRANSFERS.  This service allows you to authorize transfers of money to
purchase or sell shares.  Using  Telephone  Transfer you can move money  between
your bank account and your account in the Funds with one phone call.  Moneys may
be transferred  either by wire or electronic  funds transfer with an institution
which is a member of the Automated Clearing House ("ACH").

Wire transfers may be used to transfer federal funds directly to/from the Funds'
custodian  bank. A $15.00 fee may be charged to your account for  redemptions by
wire.

Allow two (2) days after the call for electronic  funds transfer via ACH to move
moneys between your bank account and your account with either Fund.

For moneys  recently  invested,  allow normal  clearing  time before  redemption
proceeds  are sent to your bank.  In order to change the  financial  institution
account designated to receive redemption proceeds,  it will be necessary to send
a written  request to the Fund with a  signature  guarantee  from a national  or
state bank,  a trust  company or a federal  savings and loan  association,  or a
member  firm of the  New  York,  American,  Boston,  Midwest  or  Pacific  Stock
Exchange.

You can also arrange  SYSTEMATIC  PERIODIC  INVESTMENTS  (minimum $50) into your
Fund account.  Simply select the regular investment schedule you would like when
completing your account  application.  Your bank account will  automatically  be
debited to purchase shares of the Fund you select. You will receive confirmation
of each transaction.

Your  bank must be a member of ACH and you must  have a  checking  or  NOW/Money
Market Deposit account to use electronic funds transfer or systematic investing.
Please allow 20 days after receipt of your application to activate the Telephone
Transfer capability.

STATEMENTS  AND REPORTS.  You will  receive a statement of your account  listing
every  transaction  that affects your share balance no less than once per month.
At least twice a year you will receive the  financial  statements of the Fund in
which you have invested with a summary of that Fund's portfolio  composition and
performance.  Each Fund's Annual Report is reported on by the Funds' independent
auditors, KPMG Peat Marwick LLP. 

REDEEMING SHARES

Shareholders may request  redemption of their shares at any time. Shares will be
redeemed at their net asset value as next determined after a redemption  request
in good order is received by the Fund's Distributor.  Redemption orders received
and accepted by the Distributor before 10:00 a.m. Central Time on a business day
will be redeemed as of 11:00 a.m.  Central Time and will earn dividends  through
the previous day; proceeds normally will be sent electronically the same day (or
mailed by check the next  business  day) to the  organization  that  placed  the
redemption  order in good form.  Redemption  orders  received  after  10:00 a.m.
Central Time or on a non-business  Day will be redeemed as of 3:00 p.m.  Central
Time or at the next  determined net asset value and earn  dividends  through the
date the redemption request was received;  proceeds will be sent  electronically
on the  next  business  day (or  mailed  by  check on the  second  business  day
thereafter).  While the Funds use their best efforts to maintain their net asset
value per share at $1.00,  the proceeds paid upon redemption may be more or less
than the amount originally invested.

If you purchase  shares  through a  Participating  Organization,  you may redeem
shares  in  accordance  with  that  Organization's  rules  regarding  redemption
requests.   Direct  shareholders  may  redeem  shares  in  accordance  with  the
procedures described under "How to Redeem Shares".

The Funds intend to pay redemption  proceeds  within two business days and in no
event will  payment be made later than seven days after  receipt of a redemption
request in good order. Payments to investors who request to redeem shares within
a few days after a purchase paid for by check may be delayed until the Funds can
verify the check has been collected.

The Funds  reserve the right to suspend  redemptions  or to postpone the payment
therefore  when:  (a) trading on the New York Stock  Exchange is  restricted  as
determined by the Securities and Exchange Commission,  or the Exchange is closed
for other than customary  weekend and holiday  closings;  (b) the Securities and
Exchange  Commission  has  permitted  such  suspension;  or (c) an  emergency as
determined by the  Securities  and Exchange  Commission  exists,  making sale of
portfolio  securities  or  valuations  of the Funds'  net assets not  reasonably
practicable.

If an investor's account drops below $250 due to redemptions,  the Funds reserve
the right to redeem any  remaining  shares if after 30 days'  notice  additional
investments to bring the account value to $250 are not made.

HOW TO REDEEM SHARES

 BY MAIL--                           Send a "letter of instruction": a letter
 TO: 2203 GRAND AVENUE               specifying the name of the Fund, the
     DES MOINES, IA 50312-5338       number of shares to be sold, your name, 
                                     your account number, and the additional 
                                     requirements listed below that apply to
                                     your particular account.

 TYPE OF REGISTRATION                   REQUIREMENTS
 ______________________________      __________________________________________
 Individual, Joint Tenants,          Letter of instruction signed by all
 Sole Proprietorship, Custodial      persons required to sign for the account,
 (Uniform Gifts or Transfers To      exactly as it is registered, accompanied 
 Minors Act), General Partners       by signature guarantee(s).

 Corporation, Association            Letter of instruction and a corporate
                                     resolution signed by person(s) authorized 
                                     to act on the account, accompanied by 
                                     signature guarantee(s).

 Trust                               A letter of instruction signed by the 
                                     Trustee(s) (as Trustee), with a signature 
                                     guarantee. (If the Trustee's name is not 
                                     registered on your account, also provide 
                                     a copy of the trust document, certified 
                                     within the last 60 days.)

 If you do not fall into any of these registration  categories (e.g., Executors,
 Administrators,   Conservators   or   Guardians)   please   call  for   further
 instructions.

 A  signature  guarantee  is  designed  to  protect  you  and the  Fund  against
 fraudulent  transactions  by  unauthorized  persons.  A signature  guarantee is
 required for all persons registered on an account. A signature guarantee may be
 obtained from an eligible guarantor  institution,  as defined by the Securities
 and Exchange  Commission.  These institutions  include banks,  savings and loan
 associations, credit unions, brokerage firms, and others. The words, "SIGNATURE
 GUARANTEED"  must be stamped or typed near each  person's  signature and appear
 with the printed name,  title,  and signature of an officer and the name of the
 guarantor institution.  PLEASE NOTE THAT A NOTARY PUBLIC STAMP OR SEAL IS NOT A
 SIGNATURE GUARANTEE.
________________________________________________________________________________

                FOR ALL OPTIONS BELOW, PLEASE CALL 1-800-798-1819
________________________________________________________________________________

 BY EXCHANGE--                       You must meet the minimum investment
                                     requirement of the other fund.  You can 
                                     only exchange between accounts with 
                                     identical names, addresses, and taxpayer 
                                     identification numbers.

 BY ELECTRONIC FUNDS                 You must have applied for the Telephone 
 TRANSFER (ACH) OR WIRE--            Transfer feature on your application.  
                                     Allow two days via ACH.  Call before 
                                     10:00 a.m. for same day wire.
                                     $15.00 fee for bank wires.
<PAGE>
TABLE OF CONTENTS
     Expense Summary of Institutional Shares..............................2
     Highlights...........................................................3
     Financial Highlights.................................................4
     Investment Objectives, Policies and Restrictions.....................7
     Liquid Assets....................................................... 7
     Municipal Assets.....................................................9
     Performance.........................................................12
     Distributions and Taxes.............................................13
     Organization and Shares of the Funds................................14
     Management and Fees.................................................15
     Opening an Account..................................................16
         Share Price.....................................................16
         Purchasing Shares...............................................17
     Shareholder Services................................................19
     Redeeming Shares....................................................21

NO SALESMAN,  OR OTHER PERSON, HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO
MAKE ANY  REPRESENTATIONS,  OTHER THAN THOSE  CONTAINED IN THIS  PROSPECTUS,  IN
CONNECTION  WITH THE OFFER  CONTAINED IN THIS  PROSPECTUS AND, IF GIVEN OR MADE,
SUCH OTHER INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN
AUTHORIZED BY THE FUNDS OR BY IMG FINANCIAL SERVICES,  INC. THIS PROSPECTUS DOES
NOT  CONSTITUTE  AN OFFERING BY IMG  FINANCIAL  SERVICES,  INC., IN ANY STATE IN
WHICH SUCH OFFERING MAY NOT LAWFULLY BE MADE.
<PAGE>
MUNICIPAL ASSETS FUND                                         2203 GRAND AVENUE
                                                     DES MOINES, IA  50312-5338

________________________________________________________________________________

STATEMENT OF ADDITIONAL INFORMATION                          SEPTEMBER 30, 1997
________________________________________________________________________________

         This  statement is not a Prospectus  but should be read in  conjunction
with the Fund's current  Prospectuses  (dated September 30, 1997). Please retain
this  Statement  for future  reference.  The  Annual  Report of the Fund for the
fiscal  period ended June 30, 1997 is  incorporated  herewith by  reference.  To
obtain the Annual Report or any Prospectus  please call IMG Financial  Services,
Inc.


IMG Financial Services, Inc......................................1-800-798-1819
                           ......................................1-515-244-5426



Table of Contents:

  General Information and History.............................................2
  Investment Objectives, Policies and Restrictions............................2
  Purchases of Fund Shares....................................................5
  Valuing the Fund's Shares...................................................7
  Calculation of Yield........................................................8
  Dividends...................................................................9
  Taxation ...................................................................9
  Management.................................................................11
  Compensation Table.........................................................11
  The Investment Management Agreement........................................12
  Other Information..........................................................13
           Federal Holidays..................................................13
           Portfolio Transactions............................................13
           Organization and Shares of the Fund...............................14
           Reports to Shareholders...........................................14
           Principal Shareholders and Control Persons........................14
           Custodian, Transfer Agent and Dividend Paying Agent...............14
           Legal Opinions....................................................15
           Independent Auditors..............................................15
  Appendix A.................................................................15
  Appendix B.................................................................16


<PAGE>


GENERAL INFORMATION AND HISTORY

The Fund is an open-ended diversified management investment company organized as
an Iowa  corporation  in January 1983 under the name Iowa Tax Free Liquid Assets
Fund,  Inc. On October  13,  1987,  the Fund  changed its name to IMG Tax Exempt
Liquid  Assets  Fund,  Inc.  On  September  25,  1996,  the Fund  increased  its
authorized  capital from 200 million to five billion shares of Common Stock, par
value $.001 per share,  changed its name to Municipal  Assets Fund,  and amended
the Articles of  Incorporation  to authorize the Board of Directors to issue one
or more  additional  classes of shares.  Simultaneously,  the Board approved the
redesignation  of the  existing  shares as "Sweep  Shares"  and the  issuance of
"Trust Shares" and "Institutional Shares".

INVESTMENT OBJECTIVES, POLICIES AND RESTRICTIONS

Municipal  Assets Fund,  ("Municipal  Assets") seeks to provide  maximum current
income,  exempt from Federal income taxes,  consistent  with safety of principal
and maintenance of liquidity.  In order to accomplish  this goal,  assets of the
Fund will be invested in the following types of securities  maturing in 397 days
or less from time of investment (with certain exceptions):

     (1)   Tax-exempt   debt   obligations   issued  by  state   and   municipal
           governmental  units and public  authorities  within the United States
           and  participation  interests  therein.  With  few  exceptions,  such
           obligations will be non-rated and of limited marketability.  However,
           they will be backed by demand  repurchase  commitments of the issuers
           thereof  and  irrevocable   bank  letters  of  credit  or  guarantees
           (collectively  referred  to herein as  "Liquidity  Agreements").  The
           Liquidity  Agreements  will  permit the holder of the  securities  to
           demand payment of the unpaid principal  balance plus accrued interest
           upon a specified  number of days notice  either from the issuer or by
           drawing on an  irrevocable  bank letter of credit or  guarantee.  The
           issuer of the security may have a  corresponding  right to prepay the
           principal and accrued  interest.  In addition,  all obligations  with
           maturities  longer than one year from date of purchase will, by their
           terms, bear rates of interest that are adjusted upward or downward no
           less frequently than  semiannually by means of a formula  intended to
           reflect market changes in interest rates.

           The time period  covered by Liquidity  Agreements may be shorter than
           the final maturity of the obligations  covered thereby.  At or before
           the  expiration of such Liquidity  Agreements,  the Fund will seek to
           obtain either extensions  thereof or replace them with new agreements
           and if  unable  to do so the Fund  will  exercise  its  rights  under
           existing  Liquidity  Agreements  to require that the  obligations  be
           purchased.  Thus,  at no time  will the  Fund's  investments  include
           obligations   with  maturities   longer  than  one  year  unless  the
           obligations  bear interest  rates  subject to periodic  adjustment at
           least  semiannually  and are subject to sale on seven  calendar  days
           notice under existing Liquidity Agreements.

           The only banks (the "Participating Banks") which will be permitted to
           sell  participations  in fixed  and  variable  rate  tax-exempt  debt
           obligations  of United States  governmental  units to the Fund (or to
           provide  irrevocable  letters  of  credit or  guarantees  to back the
           demand  repurchase  commitments  of the issuers of such  obligations)
           will be United  States  banks  which have  entered  into  irrevocable
           written agreements with respect thereto and have agreed to furnish to
           the Fund whatever financial information may be requested for purposes
           of  evaluating  the  Participating   Banks  financial  condition  and
           capacity to fulfill its  obligations  to the Fund and to perform such
           servicing duties as may be mutually agreed to by the parties.

           The Fund's investments may include participation interests, purchased
           from Participating  Banks, in fixed and variable rate tax-exempt debt
           obligations   (including  industrial  development  bonds  hereinafter
           described)  owned by the banks.  A  participation  interest gives the
           Fund  an  undivided  interest  in the  tax-exempt  obligation  in the
           proportion that the Fund's participation  interest bears to the total
           principal  amount of the obligation  and carries a demand  repurchase
           feature.  Each  participation  is backed by an irrevocable  letter of
           credit or  guarantee  of the  Participating  Bank  which  issued  the
           participation. The Fund has the right to liquidate the participation,
           in whole or in part,  by drawing on the letter of credit or guarantee
           of the Participating  Bank which issued the  participation.  The Fund
           has the right to liquidate the participation, in whole or in part, by
           drawing on the letter of credit on demand, after seven calendar days'
           notice,  for all or any part of the  principal  amount of the  Fund's
           participation, plus accrued interest.

           The Fund intends to exercise its rights  under  Liquidity  Agreements
           only:  (1)  upon  default  in  the  terms  of  the  tax-exempt   debt
           obligations  covered  thereby;  (2) to provide  the Fund with  needed
           liquidity to cover  redemptions of Fund shares; or (3) to insure that
           the value of the Fund's investment portfolio does not vary materially
           from  the  amortized  cost  thereof.   Participating  Banks  have  no
           contractual  obligation to offer  participations to the Fund, and the
           Fund is not  obligated  to  purchase  or  resell  any  participations
           offered or sold by  Participating  Banks.  The  Liquidity  Agreements
           govern  the   obligations   of  the  parties  as  to   securities  or
           participations actually purchased by the Fund.

           The financial  condition and  investment  and loan loss record of all
           banks  seeking  to sell  participations  in fixed and  variable  rate
           tax-exempt  debt  obligations  to the Fund (or to provide  letters of
           credit or guarantees to back the demand repurchase commitments of the
           issuers  of such  obligations)  will be  carefully  evaluated  by the
           Advisor, based upon guidelines established by the Board of Directors,
           prior to the  execution of a Liquidity  Agreement by a  Participating
           Bank and  periodically  thereafter.  Purchased  obligations will bear
           interest  at or above  current  market  rates and the rates  borne by
           obligations  with maturities  longer than one year will be adjustable
           at least  semi-annually to reflect changes in market rates subsequent
           to issuance of the securities.  It is anticipated that the tax-exempt
           debt  obligations  purchased or  participated  in by the Fund will be
           those  traditionally  acquired by United States banks.  These include
           both  general  obligation  and revenue  bonds issued for a variety of
           public  purposes  such  as  the  construction  of  a  wide  range  of
           facilities  including  schools,   streets,  water  and  sewer  works,
           highways,  bridges,  and housing.  Also  included are bonds issued to
           refund outstanding obligations, to obtain funds for general operating
           purposes and to lend to other  public  institutions  and  facilities.
           Certain types of industrial development bonds issued by public bodies
           to finance the  construction of industrial and commercial  facilities
           and equipment are also purchased.  Revenue generating facilities such
           as parking  garages,  airports,  sports and convention  complexes and
           water supply,  gas,  electricity,  and sewage  treatment and disposal
           systems are financed  through issuance of tax-exempt debt obligations
           as well.

           Tax-exempt  debt  obligations  are normally  categorized  as "general
           obligation" or "revenue" issues. General obligations are secured by a
           pledge  of  the  full  taxing  power  of  the  issuer  while  revenue
           obligations are payable only from revenues generated by a facility or
           facilities,  a specified  source of tax or other  revenues or, in the
           case of  industrial  development  bonds,  from  lease  rental or loan
           payments made by a commercial or industrial  user of the  facilities.
           Revenue  obligations do not generally  carry the pledge of the credit
           of the issuer.

           Short-term  tax-exempt debt  obligations  usually mature in less than
           two years, are typically  general  obligations of the issuer and most
           often  issued in  anticipation  of receipts  to be realized  from tax
           collections or the sale of long-term bonds.  Project Notes are issued
           by local agencies under a program  administered  by the United States
           Department  of Housing and Urban  Development  and are secured by the
           full faith and credit of the United States.

           From  time to time the  Fund may  invest  25  percent  or more of its
           assets in tax-exempt debt  obligations,  or  participations  therein,
           sufficiently  similar in  character  that an  economic,  business  or
           political  development  or change  affecting one such security  would
           also affect the other securities.  Examples might be securities whose
           principal and interest  payments are dependent upon revenues  derived
           from similar projects or whose issuers are located in the same state.
           In addition,  investments in tax-exempt  debt  obligations of issuers
           may from time to time become  concentrated within a single state, and
           the  Fund  may  also  invest  25  percent  or more of its  assets  in
           industrial development bonds or participations therein.

           For entering into a Liquidity  Agreement,  a Participating  Bank will
           retain a service  and letter of credit fee in an amount  equal to the
           excess of the interest paid on the tax-exempt  obligations  above the
           negotiated yield at which the instruments were purchased by the Fund.
           Such fees may be adjusted  if  adjustments  are made in the  interest
           rate paid on the  tax-exempt  obligations.  Each  Participating  Bank
           executing  a  Liquidity  Agreement  must be  approved by the Board of
           Directors  of the  Fund  prior  to,  or at the next  quarterly  Board
           meeting following,  such executions.  See "The Investment  Management
           Agreement"  on page 10 for a discussion of the criteria to be used in
           selecting Participating Banks. The Board of Directors will review all
           Participating Banks and Liquidity  Agreements  quarterly in an effort
           to  assure  continued  liquidity  and  high  quality  in  the  Fund's
           portfolio.

     (2)   High  quality   tax-exempt  debt  obligations  issued  by  state  and
           municipal  governments and by public  authorities,  including  issues
           sold as interim financing in anticipation of tax collections, revenue
           receipts or bond sales,  and tax-exempt  Project Notes secured by the
           full faith and credit of the United States.  Such obligations will be
           purchased  only if backed by the full  faith and credit of the United
           States or rated Aaa, Aa, MIG-1, MIG-2 or Prime-1 by Moody's Investors
           Service,  Inc.  ("Moody's")  or AAA,  AA, or A-1 by Standard & Poor's
           Corporation  ("S &  P").  See  "Appendix  A" on  page  13.  Following
           purchase  of a  rated  obligation  by  the  Fund  the  rating  may be
           withdrawn or reduced below the Fund's minimum requirement.  This will
           not require  sale of the issue by the Fund but the Advisor  will take
           such  changes into  consideration  in  determining  whether the issue
           should be  retained  by the Fund.  Non-rated  securities  may also be
           purchased  if  determined  by the Fund's  Board of Directors to be of
           comparable  quality  to the  rated  securities  in which the Fund may
           invest.

     (3)   Taxable   obligations   issued   or   guaranteed   by   agencies   or
           instrumentalities  of the United  States  Government  may be acquired
           from time to time on a temporary basis for defensive  purposes.  Such
           agencies  and   instrumentalities   include,  for  example,   Federal
           Intermediate Credit Banks,  Federal Home Loan Banks, Federal National
           Mortgage Association and Farmers Home Administration. Such securities
           will  include  those  supported  by the full  faith and credit of the
           United States Treasury or the right of the agency or  instrumentality
           to borrow from the  Treasury as well as those  supported  only by the
           credit of the issuing agency or instrumentality.

     (4)   Repurchase   agreements   involving  securities  in  the  immediately
           foregoing category.  A repurchase agreement involves the sale of such
           securities to the Fund with the concurrent agreement of the seller to
           repurchase  them at a  specified  time and price,  to yield an agreed
           upon rate of interest. The Fund will enter into repurchase agreements
           with brokers and banks.  Thus,  the Fund must initially rely upon the
           credit  of  a  particular  broker  or  bank  for  completion  of  the
           repurchase  agreement.  Such repurchase agreements are intended to be
           fully  collateralized,  in an amount equal to at least the  principal
           amount of the transaction  plus accrued  interest earned thereon,  by
           the underlying  Government or agency  securities valued at their fair
           market  value each day.  Although the Fund will  normally  have legal
           title to and  constructive  possession of the  collateral,  it cannot
           eliminate  the risk of a  default  by a broker  or bank  which  could
           result in a loss to the Fund on the sale of the underlying securities
           or delays in  obtaining  the  collateral  because  of  bankruptcy  or
           insolvency  proceedings.  Repurchase  agreements  may be deemed to be
           loans under the Investment Company Act of 1940.

Assets of the Fund will consist of  securities  with  maturities  of 397 days or
less at date of purchase or, if maturing beyond 397 days,  securities  which are
backed by Liquidity Agreements and which have variable interest rates adjustable
at  least   semiannually.   In  determining  whether  particular  variable  rate
obligations  backed  by  Liquidity  Agreements  may  be  purchased,  the  period
remaining  until  maturity  will be deemed to be the longer of the demand notice
period  required before the Fund is entitled to receive payment of the principal
amount or the period remaining until the next interest adjustment.  For purposes
of Rule 2a-7 and the diversification  requirements thereunder, the unconditional
commitments  are  limited in amounts  necessary  to keep any one bank from being
obligated  to purchase  more than five  percent of the total  assets held by the
Fund  (determined  as of the date of  purchase).  The  dollar  weighted  average
maturity of Fund  investments  will be 90 days or less,  determined  in the same
manner.  In  attempting  to provide its  shareholders  with the  highest  income
consistent with preservation of capital,  the Fund will not necessarily purchase
investments bearing the highest interest rates available as such investments may
also involve a higher degree of risk.

The Fund does not intend to concentrate  its investments in any one industry and
will not issue senior securities.

As a general policy,  it is the Fund's intention to hold investments  until they
mature or until immediately  prior to the expiration of an applicable  Liquidity
Agreement.  However,  in an effort to increase  portfolio  yields,  the Fund may
periodically trade securities to take advantage of perceived disparities between
markets for various  short-term  money market  instruments.  It is also possible
that  redemptions  of Fund  shares  could  necessitate  the  sale  of  portfolio
investments prior to maturity and at times when such sale would be undesirable.

While  investments  by the  Fund  will be  confined  to  high-quality  financial
instruments  which, in the case of tax-exempt  obligations  covered by Liquidity
Agreements,  will be backed  by demand  repurchase  commitments  of the  issuers
thereof and by irrevocable  bank letters of credit or  guarantees,  the complete
elimination of risk is not possible.  Under certain  circumstances (see "Valuing
the Fund's  Shares" and  "Dividends"),  the net asset value of the Fund's shares
could  decrease.  It is also  possible a  Participating  Bank or an issuer  will
default on the provisions of their  Liquidity  Agreements  which could cause the
net asset value per share to decrease. In light of these various  contingencies,
there can be no assurance the Fund will achieve its investment objectives.

New issues of tax-exempt  debt  obligations are usually offered on a when-issued
basis with the  securities  to be delivered and paid for  approximately  45 days
following  the  initial  commitment  to  purchase.  The terms of the  commitment
establish the price to be paid and the yield of the  securities to be purchased.
Such  commitments  will only  occasionally  be entered into by the Fund and only
with the  intention of actually  acquiring the  securities.  It is possible that
market yields at time of delivery may exceed the negotiated yield on when-issued
securities.  The Fund will  maintain a separate  account  consisting  of cash or
liquid  securities,  valued  at  market  or  fair  value  daily,  equal  to  its
outstanding when-issued commitments. Settlement on when-issued securities may be
made by using  available  cash,  selling  securities  or,  though not  expected,
selling the when-issued securities themselves (which may have a value greater or
lesser than the Fund's commitment).  Sale of securities to meet such commitments
may result in  realization  of capital gains or losses which are not exempt from
Federal income tax. When-issued commitments outstanding at any one time will not
exceed ten percent of the Fund's net assets.

Yields on  tax-exempt  debt  obligations  are  dependent on a variety of factors
including  general  economic and money market  conditions  as well as supply and
demand  factors within the market for tax-exempt  obligations.  Yields  actually
realized by Fund  investors will be reduced by the  management  fees,  operating
expenses   and  fees   received  by   Participating   Banks  and   Participating
Organizations.

The Fund has adopted a number of investment  policies and restrictions,  some of
which can be changed by the board of  directors.  Others may be changed  only by
holders of a majority of the outstanding shares and include the following:

Without shareholder approval the Fund may not: (1) purchase any securities other
than those described under "Investment  Objectives,  Policies and Restrictions";
(2)  invest  more than 80 percent of its total  assets in  tax-exempt  fixed and
variable rate debt obligations (or  participation  interests  therein) issued by
state and local  governmental units within the United States which are backed by
Liquidity  Agreements;  (3) invest more than five percent of its total assets in
tax-exempt  obligations or participation  interests therein subject to Liquidity
Agreements  issued by any one  Participating  Bank;  (4)  invest  with a view to
exercising control or influencing  management;  (5) invest more than ten percent
of the value of its total assets in  securities of other  investment  companies,
except   in   connection   with  a   merger,   acquisition,   consolidation   or
reorganization,  subject to Section  12(d)(1) of the  Investment  Company Act of
1940;  (6) purchase or sell real  estate,  commodities  or commodity  contracts,
interests in oil, gas or other mineral exploration or development programs;  (7)
purchase  any  securities  on margin,  except  for the  clearing  of  occasional
purchases or sales of portfolio  securities;  (8) make short sales of securities
or  maintain  a short  position  or write,  purchase,  or sell  puts  (excluding
Liquidity  Agreements covering certain tax-exempt  obligations  purchased by the
Fund),  calls,  straddles,  spreads or combinations  thereof;  (9) make loans to
other persons,  provided the Fund may make investments and enter into repurchase
agreements   as  described   under   "Investment   Objectives,   Policies,   and
Restrictions";  (10) borrow  money,  except to meet  extraordinary  or emergency
needs for funds,  and then only from banks in amounts not  exceeding ten percent
of its total assets, nor purchase  securities at any time borrowings exceed five
percent of its total  assets;  (11)  mortgage,  pledge,  hypothecate,  or in any
manner transfer, as security for indebtedness,  any securities owned by the Fund
except as may be necessary in connection with borrowings  outlined in (10) above
and then  securities  mortgaged,  hypothecated  or pledged  may not exceed  five
percent  of the  Fund's  total  assets  taken at market  value;  (12)  invest in
securities  with  legal  or  contractual  restrictions  on  resale  (except  for
tax-exempt  debt  obligations  subject to Liquidity  Agreements) or for which no
ready market exists;  (13) enter into a Liquidity Agreement with any bank unless
such  bank is a  United  States  bank  which  has a  record,  together  with its
predecessors,  of at least five years of  continuous  operation;  (14) act as an
underwriter of securities; (15) enter into repurchase agreements if, as a result
thereof,  more than five  percent of the Fund's  total  assets  (taken at market
value at the time of such investment) would be subject to repurchase  agreements
maturing  in more than  seven  calendar  days;  and (16)  enter  into  Liquidity
Agreements with any Participating Bank if five percent or more of the securities
of such Bank are owned by the Advisor or by  directors  and officers of the Fund
or the  Advisor,  or if any  director or officer of the Fund or the Advisor owns
more than 1/2 percent of the voting securities of such Participating Bank.

The foregoing investment  restrictions are considered fundamental policies which
cannot be changed without the approval of a "majority" of the Fund's outstanding
voting  securities,  that is, by (a) 67 percent or more of the securities voting
at a special or annual meeting if more than 50 percent of the outstanding shares
of Common Stock are  represented  at such meeting in person or by proxy;  or (b)
more than 50 percent of the outstanding Common Stock, whichever is less.

The Fund intends to invest at least 25 percent of its total assets in tax-exempt
debt  obligations  or  participation  interests  therein  subject  to  Liquidity
Agreements,  except when such investments are either not available in sufficient
quantity or do not carry yields competitive with alternative investments.

PURCHASES OF FUND SHARES

See  "Opening  An  Account -  Purchasing  Shares"  in the  Prospectus  for basic
information on how to purchase shares of the Fund.

An order to purchase  shares of the Fund is accepted  when the Fund's  Custodian
Bank  receives   payment  in  Federal  funds  (funds   available  for  immediate
investment). This will occur upon receipt of the purchase price by Federal funds
wire or electronic funds transfer via the ACH system from the purchaser's  bank,
or when a check or other  negotiable  bank draft  received  by the Fund has been
converted  into  Federal  funds  (normally  one to two  business  days after its
receipt by the Fund).

An investor will become a shareholder when the net asset value applicable to his
order is  determined.  Net asset value of the Fund's shares is determined  twice
each day at 11:00  a.m.  Central  time  and at the  close of the New York  Stock
Exchange  (normally 3:00 p.m. Central Time). If a purchase order is received and
accepted by the fund by 10:00 a.m.  Central Time and Federal funds are available
to the Fund before 3:00 p.m.  Central  Time, an order will be effective the same
day, the investor will become a shareholder  of record that day, and shares will
commence earning  dividends the day the order becomes  effective.  If a purchase
order is received  and  accepted by the Fund after 10:00 a.m.  Central  Time but
before 3:00 p.m.  Central Time and Federal funds are available 3:00 p.m. Central
Time the shares  will not  commence  earning  dividends  until the day after the
order is received.

Investments  in  Sweep  Shares  of the  Fund  may be made  through  transactions
directly with the Fund's Distributor (IMG Financial Services,  Inc.) and through
qualified  banks,  savings  and loan  associations,  broker/dealers,  investment
advisory firms, and other organizations ("Participating Organizations") selected
by the Advisor and approved by the Board of  Directors  of the Fund,  based upon
the  Participating   Organization's  capacity  to  provide  processing  of  Fund
transactions  for its  customers  in  conjunction  with other  customer  account
relationships.  Participating  Organizations  will be  required  to  enter  into
agreements with the Fund's  Distributor to provide  certain  services to persons
("Participating  Investors")  who  invest  in  the  Fund  through  Participating
Organizations.  These will include:  distributing  copies of the  Prospectus and
sales   literature  to   prospective   investors  who  request  it;   furnishing
Participating  Investors with periodic account statements containing information
regarding  Fund  share  purchases  and  redemptions,   income  earned  and  Fund
investment balances; and forwarding to Participating  Investors periodic reports
and  proxy  material  mailed  by the  Fund  to its  shareholders.  Participating
Organizations  may satisfy the Fund's required  minimum,  initial and subsequent
purchase  amounts  by  aggregating  investments  on  behalf of  customers  whose
individual investments are less than the Fund's required minimums. Participating
Investors may, if they so elect, authorize their Participating  Organizations to
purchase  and redeem  Fund  shares by means of special  investment  arrangements
(including  automatic "Sweep" investment  programs) offered by the Participating
Organization.

"Trust Shares" may be purchased only by financial  institutions  acting on their
own behalf or on behalf of certain customers' accounts.  "Institutional  Shares"
may be purchased by individual  and  institutional  customers  directly from the
Fund's Distributor.

The Fund adopted a distribution  plan (the "Plan")  pursuant to Rule 12b-1 under
the Investment  Company Act of 1940 on December 20, 1986,  effective  January 1,
1987.  The Plan  continues  in force only if  approved  annually by the Board of
Directors  and by a majority  of  directors  who are not  parties to the Plan or
interested  persons of any party to the Plan, cast in person at a meeting called
for the purpose of voting on such approval,  or by a majority of the outstanding
securities of the Fund. In adopting the Plan, the directors  considered  various
factors  and   determined   that  the  Plan  would  benefit  the  Fund  and  its
shareholders.  On  November  21,  1990,  the  Fund's  shareholders  approved  an
Amendment  to the Plan,  effective  January 1, 1991,  to allow for  payments  to
reimburse the Fund's Distributor for direct and indirect expenses related to the
marketing,  selling, and distribution of Fund shares,  including but not limited
to,  preparation  and  distribution  of  brochures,  advertisements,  and  other
promotional materials for the Fund,  compensation to sales personnel employed by
the Distributor,  and payment to any securities dealer, financial institution or
any other Person (a  "Participating  Organization")  who renders  assistance  in
distributing  or promoting the sale of the Fund's  shares  pursuant to a written
agreement  with the  Distributor;  and to increase the maximum fee payable under
the Plan from 0.50 percent to 0.75 percent of the average net asset value of the
Fund. In conjunction  with a plan to allow the Fund to issue multiple classes of
shares,  the Board of Directors  redesignation  the existing  shares of the Fund
"Sweep Shares" and made the Plan  applicable  solely to Sweep Shares.  The Board
also approved an amendment to the Plan  eliminating a restriction on payments by
the Plan to the amount of distribution-related expenses actually incurred by the
Distributor  each  quarter up to a maximum of 0.50  percent of the  average  net
assets of Sweep Shares of the Fund.  Participating  Organizations make available
to their customers  transaction services (including automatic "sweep" investment
programs)  and may provide  monthly  shareholder  account  reporting and related
ministerial  duties with respect to customer  accounts.  Except as to securities
dealers,  none of the  compensation  paid to  such  Participating  Organizations
constitute  expenses  related to  advertising,  distribution  of prospectuses to
other than current shareholders,  underwriter's  compensation or compensation to
dealers,  or  compensation  of sales  personnel,  and payments  made are related
solely to the  Participating  Organization's  services in providing the customer
transaction services. Participating Organizations are not authorized to actually
make sales of shares of the Fund.  All orders to purchase  shares are subject to
acceptance  by the  Fund's  Distributor  on behalf  of the Fund.  While the Fund
itself does not presently  levy sales,  redemption or account  service  charges,
Participating  Organizations  may elect to do so and the Fund may elect to do so
in the  future.  Investors  should  inquire  regarding  the  nature and costs of
services provided by Participating  Organizations and determine if such services
are  desired  because  the costs  thereof  will  reduce the Fund's  yield to the
investor below that obtainable by investing in the Fund directly. While the Fund
may purchase portfolio securities from Participating Organizations,  it will not
give any preference to them in selecting their investments.

No  director  or officer of the Fund,  or the Advisor has any direct or indirect
financial  interest in the Plan. The Fund's Plan results in an efficient  system
of customer  investment in the Fund thereby  potentially  increasing  the Fund's
ability to attract  shareholders.  The  services  rendered by the  Participating
Organizations with respect to customer  transactions  (including automatic sweep
investment  programs)  are more  efficient  and direct  than that which the Fund
might otherwise provide. The Fund believes that the Plan and agreements with the
Participating  Organizations  actually reduce  expenses for shareholder  account
reporting  thereby  reducing costs of the Funds and increasing  yields.  For the
year ended June 30,  1997,  the Fund paid out a total of $50,758  under the Plan
and all  payments  were made to  Participating  Organizations.  As of August 31,
1997, there were 27 Participating Organizations under the Plan.

The Plan and any  agreements  related  thereto will  automatically  terminate if
assigned and may be terminated  by either party on 60 days notice.  The Plan may
be  terminated  by a majority of  noninterested  directors who have no direct or
indirect financial interest in the Plan or it may be terminated by a majority of
the  outstanding  voting shares of the Fund.  Any changes in the Plan that would
materially  increase  the  distribution  costs  require  shareholder   approval;
otherwise,  the directors,  including a majority of the noninterested directors,
may  amend  the  Plan.  The  directors  review  quarterly  a  written  report of
distribution costs incurred pursuant to the Plan.

On August 13, 1996,  the Fund adopted a  Shareholder  Services  Plan  ("Services
Plan") with respect to Trust  Shares.  Pursuant to the Plan,  the Fund may enter
into Servicing Agreements with Participating  Organizations providing that those
Participating  Organizations will render certain shareholder support services to
their  customers who are record or beneficial  owners of Trust Shares.  Services
provided  pursuant to the Service Plan may include some or all of the following:
(i)  processing  dividend and  distribution  payments from the Fund on behalf of
customers;  (ii) providing  information  periodically to customers showing their
position in Trust Shares;  (iii)  arranging for bank wires;  (iv)  responding to
routine customer  inquiries  relating to services performed by the Participating
Organizations  (v)  providing  sub-accounting  with  respect to shares  owned of
record  or   beneficially   by   customers   or  the   information   needed  for
sub-accounting;  (vi) forwarding  shareholder  communications  (such as proxies,
shareholder  reports,  annual and semi-annual  financial reports,  and dividend,
distribution and tax notices) to customers;  (vii) forwarding to customers proxy
statements  and proxies  containing  any proposals  regarding the Services Plan;
(viii) aggregating and processing  purchase,  redemption,  and exchange requests
from  customers and placing net purchase and  redemption  orders with the Fund's
Distributor;  (ix) providing customers with a service that invests the assets of
their  accounts  in  Trust  Shares   pursuant  to  specific  or   pre-authorized
instructions;   (x)  maintaining  records  relating  to  each  customer's  share
transactions;  or (xi)  other  similar  services  if  requested  by the Fund and
permitted  by law. In  addition,  Participating  Organizations  may also provide
dedicated facilities and equipment in various local locations to serve the needs
of investors,  including  walk-in  facilities,  800 numbers,  and  communication
systems to handle shareholder inquiries, and in connection with such facilities,
provide on-site management personnel and monitoring services for their customers
who have  invested in Trust Shares,  including the operation of telephone  lines
for daily quotations of return information.

The Services Plan is an  administrative  support services plan.  Pursuant to the
Plan, the Fund's arrangement with  Participating  Organizations must be approved
annually  by a majority  of the Fund's  Directors,  including  a majority of the
Directors  who are not  "interested  persons" of the Fund as defined in the 1940
Act and have no direct or indirect financial interest in such arrangements.

Under the terms of the Services  Plan,  the Fund may pay a fee to  Participating
Organizations  equal to annual rate of 0.25 percent of the average net assets of
Trust Shares.

The Glass-Steagall Act and other applicable laws prohibit banks from engaging in
the business of underwriting,  selling,  or distributing  securities.  Since the
only function of banks who may be engaged as  Participating  Organizations is to
perform  administrative and shareholder  servicing functions,  the Fund believes
that  such  laws  should  not  preclude  banks  from  acting  as   Participating
Organizations;  however,  future  changes in either Federal or State statutes or
regulations   relating  to  the  permissible   activities  of  banks  and  their
subsidiaries or affiliates,  as well as judicial or administrative  decisions or
interpretations of statutes or regulations, could prevent a bank from continuing
to perform all or part of its shareholder servicing  activities.  If a bank were
prohibited  from so acting,  its  shareholder  customers  would be  permitted to
remain  shareholders  in the Fund,  and  alternative  means for  continuing  the
servicing of such shareholders  would be sought.  In such event,  changes in the
operation of the Fund might occur, and shareholders  serviced by such bank might
no longer be able to avail  themselves of any  investment or other services then
being provided by the bank. It is not expected that shareholders would incur any
adverse financial  consequences as a result of any of these  occurrences.  It is
intended that none of the services provided by Participating Organizations other
than registered  broker-dealers  will involve the solicitation or sale of shares
of the Fund.

The Fund has  received  an  opinion  from  Cline,  Williams,  Wright,  Johnson &
Oldfather  to the effect  that,  while the matter may not be entirely  free from
doubt,   the  services  to  be  performed  by  banks  acting  as   Participating
Organizations are essentially  ministerial in nature and not in violation of the
Glass-Steagall Act.

The  Fund  reserves  the  right to  reject  any  purchase  order  and to  modify
investment  minimums  from time to time.  All  purchase  orders  are  subject to
acceptance by authorized  officers of the Fund in Des Moines,  Iowa, and are not
binding until so accepted.  Once a purchase  order has been accepted by the Fund
it may not be canceled or revoked by the investor  although the purchased shares
may be redeemed.

VALUING THE FUND'S SHARES

The net asset value of the Fund's shares is determined  twice each day, at 11:00
a.m. Central Time and at the close of the New York Stock Exchange (normally 3:00
p.m.  Central Time). The Fund is required to compute its net asset value on each
day (except  days on which no purchase or  redemption  orders are  received)  on
which the New York Stock Exchange is open for trading or during which there is a
sufficient  degree of trading  in its  portfolio  securities  that its net asset
value might be  materially  affected.  Net asset value is computed by adding the
value  of  all  securities  and  other  assets  (including   accrued  interest),
subtracting liabilities (including dividends payable) and dividing by the number
of shares outstanding.

Rule 2a-7 under the  Investment  Company Act of 1940 permits the Fund to compute
its net asset  value  per  share  using the  amortized  cost  method of  valuing
portfolio  securities.  As a condition  for using the  amortized  cost method of
valuation,  the  Board  of  Directors  of the  Fund  established  procedures  to
stabilize  the  Fund's  net asset  value at $1.00 per  share.  These  procedures
include a review by the Board of Directors as to the extent of any  deviation of
net asset value  based on  available  market  quotations  from the Fund's  $1.00
amortized cost value per share.  If such deviation  exceeds $.005,  the Board of
Directors will consider what action,  if any,  should be initiated to reasonably
eliminate or reduce material  dilution or other unfair results to  shareholders.
Such  action  may  include  redemption  of  shares  in kind;  selling  portfolio
securities  prior to  maturity;  withholding  dividends or utilizing a net asset
value per share as determined by using available market quotations. In addition,
the Fund must maintain a dollar-weighted  average portfolio maturity appropriate
to its  investment  objective;  but in any event not longer  than 90 days,  must
limit portfolio  investments to those  instruments  which the Board of Directors
determines  present  minimal  credit  risks,  and  must  observe  certain  other
reporting and recordkeeping procedures.

Under the amortized cost method of valuation,  a security is initially valued at
cost on the date of  purchase  and,  thereafter,  any  discount  or  premium  is
amortized  on a  straight-line  basis to maturity,  regardless  of the effect of
fluctuating interest rates on the market value of the security.

Accordingly,  the Fund's  investments in taxable and tax-exempt debt obligations
rated by a recognized  bond rating agency and regularly  traded in the secondary
market,  and  non-rated  fixed and  variable  rate  tax-exempt  obligations  and
participation  interests therein,  not regularly traded in the secondary market,
but subject to Liquidity  Agreements,  will be valued at amortized  cost.  Other
assets  are  valued at a fair  value  determined  in good  faith by the Board of
Directors of the Fund.

CALCULATION OF YIELD

"Current yield" (a  seven-calendar-day  historical yield) is calculated by first
dividing the average daily net  investment  income per share for that  seven-day
period by the average daily net asset value per share for the same period.  This
return is then annualized by multiplying the result times 365/7.  Net investment
income  does not  include  realized or  unrealized  gains or losses.  "Effective
yield" is based on current yield and the distribution of dividends monthly.

Yield on shares of the Fund may fluctuate daily and does not provide a basis for
determining  future yields.  Yield is not guaranteed nor is the principal of the
Fund  insured.   In  comparing  the  Fund's  yield  with  those  of  alternative
investments (such as savings accounts,  various types of bank deposits and other
money market funds),  investors should consider differences between the Fund and
the alternative  investments,  including  differences in the periods and methods
used in calculating the yields being compared.

Current yields and effective yields for the seven-day period ended June 30, 1997
were as follows:

                                        CURRENT          SEVEN-DAY
                                         YIELD             YIELD
                                         -----             -----
         Sweep Shares                    3.35%             3.41%
         Trust Shares                    3.60%             3.66%
         Institutional Shares            3.85%             3.92%

Weighted  Average  life to maturity of the  portfolio on June 30, 1997 was 52.63
days.

The  Prospectus  may be in use for  several  months and  accordingly,  it can be
expected that yields will fluctuate substantially from the example shown above.

From time to time the Fund may quote its yield in  advertisements  or in reports
and other  communications to shareholders.  The Fund's yield changes in response
to fluctuations in interest rates and in the Fund's expenses.  Consequently, any
given yield quotations  should not be considered as  representative  of what the
Fund's yields may be for any specified period in the future.

Yield  information  may be useful in reviewing  performance  of the Fund and for
providing a basis for comparison with other  investment  alternatives.  However,
the Fund's yields will fluctuate, unlike other investments which may pay a fixed
yield for a stated period of time.

Investors  should  recognize  that in periods of  declining  interest  rates the
Fund's yield will tend to be somewhat higher than prevailing  market rates,  and
in periods of rising interest  rates,  the Fund's yield will tend to be somewhat
lower. Also, when interest rates are falling, the inflow of net new money to the
Fund  from  the  continuous  sale  of it  shares  will  likely  be  invested  in
instruments  producing  lower  yields in the  balance  of the  Fund's  holdings,
thereby  reducing the current yields of the Fund. In periods of rising  interest
rates, the opposite can be expected to occur.

Advertisements  and  other  sales  literature  may  from  time to  time  include
comparative  performance  information  including  data  relating to the yield on
deposits  at  banking  and  savings  and loan  institutions  (including  savings
accounts,  interest  bearing  checking  accounts,  NOW accounts and money market
deposit accounts). Yields are compiled periodically by the Advisor from a survey
of banking and savings and loan institutions and from reports published by major
newspapers.  Additionally,  such  advertisements  and other sales literature may
include references to yield information compiled by IBC's MONEY FUND REPORT, The
Bank Rate Monitor,  Banxquote and other recognized industry sources.  Demand and
savings  deposit  accounts  at banking and  savings  and loan  institutions  are
generally  FDIC-insured and such yields generally do not fluctuate to the extent
of the Fund.

DIVIDENDS

The daily net income of the Fund is declared as a dividend  each business day to
holders of record  immediately  before 3:00 p.m. Des Moines time.  Dividends are
credited to shareholders' accounts each business day and distributed monthly. If
a  shareholder  redeems  the  entire  amount in his  account  during  the month,
dividends  credited to the account from the  beginning of the month  through the
date of redemption are paid with the redemption proceeds.

For purposes of  calculating  dividends,  daily net income  consists of interest
earned,  including  the  amortization  of any discount or premium to the date of
maturity,  less accrued  expenses of the Fund since the previous  business  day.
Monthly dividend  distributions  are reinvested in additional  shares unless the
shareholder  has  requested  payment in cash.  A statement  summarizing  account
activity and a check for the amount of any  dividends the  shareholder  may have
requested to be paid in cash are normally mailed monthly.

The Fund  attempts  to  maintain  its net asset  value at $1.00 per  share.  See
"Valuing  the Fund's  Shares" on page 6. While this is  expected  to be possible
under most conditions, should the Fund incur or anticipate any unusual expenses,
loss,  depreciation,  gain or  appreciation  which would affect either net asset
value per share or  income,  the Board of  Directors  of the Fund will  consider
whether to adhere to the dividend  policy  previously  described or revise it in
light of the existing circumstances.

If the Fund's net asset  value per share were  reduced,  or was  expected  to be
reduced, below $.995, the Board of Directors might temporarily suspend or reduce
dividend  payments in order to maintain a net asset value of $1.00 per share. As
a result of such suspension or reduction of dividends, an investor might receive
less income during a given period than he might otherwise. Such expenses, losses
or depreciation might therefore result in an investor receiving no dividends for
the period he held his shares and  receiving  upon  redemption a price per share
lower than the price he paid.

In its  endeavor  to maintain  net asset  value at $1.00 per share,  the Fund is
required  to adhere  to  certain  conditions  of Rule  2a-7  promulgated  by the
Securities and Exchange Commission which permits the Fund to value its assets at
their  amortized  cost.  These  conditions  require  that:  (1) the Fund seek to
maintain  a  dollar-weighted  average  portfolio  maturity  appropriate  to  its
objective of maintaining a stable net asset value and, in no event,  longer than
90 days;  (2) the board of  directors of the Fund  undertake  to assure,  to the
extent  reasonably   practicable,   when  taking  into  account  current  market
conditions affecting its investment objective,  that the Fund's market-based net
asset  value per share  (that is, its net asset  value  computed on the basis of
available market  quotations and estimates) will not deviate from $1.00; and (3)
the Board of Directors consider reducing or suspending  dividend payments if the
market-based net asset value per share declines below $.995.

TAXATION

The Fund has qualified as a regulated  investment  company under Subchapter M of
the  Internal  Revenue  Code since its  inception,  and  intends to qualify as a
regulated  investment  company in the  current  fiscal  year by meeting  certain
requirements  relating  to the  sources of its  income,  diversification  of its
assets and distributing  substantially all of its taxable net income,  including
any realized  capital  gains,  and thus will not incur any Federal income taxes.
Shareholders  will receive taxable dividend income or capital gains, as the case
may be,  from  distributions  whether  paid in cash or  received  in the form of
additional  shares.   Promptly  after  the  end  of  each  calendar  year,  each
shareholder  will  receive a statement  of the Federal  income tax status of all
dividends and distributions paid during the year.

Dividends derived from interest on tax-exempt debt obligations owned by the Fund
are intended to constitute  "exempt-interest  dividends" which are generally not
Federally  taxable to Fund  shareholders.  Dividends derived from other interest
and the realization of capital gains are taxable to shareholders  whether or not
reinvested.  The Fund will elect to qualify as a "regulated investment company,"
and will distribute  annually  substantially all of its tax-exempt  interest and
other income,  including realized capital gains, and will thus not be liable for
Federal  income taxes.  Fund expenses will be allocated  between  tax-exempt and
taxable income in the same proportion as the Fund's  tax-exempt  income bears to
the total of such  exempt  income  and its gross  income  (excluding  from gross
income the excess of capital gains over capital losses).

The Fund has  received  an  opinion  from  Cline,  Williams,  Wright,  Johnson &
Oldfather  to the effect that the Fund will be deemed the  "owner",  for federal
income tax purposes, of fixed and variable rate tax-exempt obligations purchased
by the Fund  which are  subject  to  Liquidity  Agreements,  provided  that such
obligations  are purchased in  arm's-length  transactions,  that the Fund is not
obligated  in any way to resell  such  obligations  to any  party,  and that the
Liquidity  Agreements  are  obtained  from a party  normally in the  business of
making   such   commitments   for  a   separately   bargained-for   arm's-length
consideration.  The Fund has represented  that it intends to purchase such fixed
and variable rate  obligations in accordance with the criteria  described in the
opinion of its counsel.

The Fund has  received  an  additional  opinion  from Cline,  Williams,  Wright,
Johnson & Oldfather  to the effect  that the Fund should be deemed the  "owner,"
for federal income tax purposes,  of  participation  interests  purchased by the
Fund in fixed and variable  rate  tax-exempt  obligations,  which  participation
interests are subject to Liquidity Agreements,  provided that such participation
interests  are  purchased  in  arm's-length  transactions,  that the Fund is not
obligated in any way to resell such participation interests to the seller to any
third party and that the Liquidity Agreements are obtained from a party normally
in the  business  of making  such  commitments  for a  separately  bargained-for
arm's-length consideration. However, counsel has noted that the Internal Revenue
Service has not issued a published or private  ruling as to the  ownership,  for
Federal income tax purposes,  of such participation  interests,  and has further
noted that,  under Rev.  Proc.  83-55  promulgated  in August 1983, the Internal
Revenue Service has indicated that it will no longer issue private rulings as to
the ownership of tax-exempt obligations.  Thus, it is possible that the Internal
Revenue Service could reach a conclusion different from that reached by counsel.
In that event, Fund shareholders could be taxed on dividends paid on Fund shares
to the extent  such  dividends  resulted  from  receipt of income by the Fund on
tax-exempt obligations not deemed to be "owned" by the Fund. The Fund intends to
purchase   participation   interests  in  fixed  and  variable  rate  tax-exempt
obligations  in  accordance  with the  criteria  described in the opinion of its
counsel.

In the event that the Internal  Revenue Service  reached a conclusion  different
from that reached by counsel for the Fund, the Fund might need to reevaluate its
investment policies and seek shareholder approval of any necessary changes.

The Fund may realize  short-term  or long-term  capital gains or losses from its
portfolio  transactions.  In the event the Fund creates additional portfolios in
the  future,  the income,  capital  gains and losses of each  portfolio  will be
treated  separately  for Federal income tax purposes.  Short-term  capital gains
will be taxable to shareholders  as ordinary  income when they are  distributed.
Any net capital  gains (the excess of its net  realized  long-term  capital gain
over its net realized  short-term capital loss) will be distributed  annually to
the  Fund's  shareholders.  The net income of a  portfolio  may not be offset by
losses in other portfolios.  Distributions  will be designated as a capital gain
dividend in a written notice mailed to the Fund's  shareholders  after the close
of the taxable year.

Promptly after the end of each year, each  shareholder  will receive a statement
setting forth the dollar amount of income exempt from Federal tax and the dollar
amount,  if any,  subject to Federal tax. Daily  dividends  derived from taxable
interest  will be  designated  as taxable in the same  percentage  as the actual
taxable income earned bears to total income earned on that day.

In accordance with the Internal Revenue Code, interest on indebtedness incurred,
or  continued,  to  purchase  or carry  shares  of the  Fund is not  deductible.
Dividends may also be subject to state and local taxation. The Fund may not be a
suitable  investment  for any  person  who is a  "principal  user"  or  "related
person,"  as defined in Section 144 of the  Internal  Revenue  Code,  of certain
facilities if qualified  small issue bonds used to finance such  facilities  are
owned by the Fund.

This  discussion  of the  Fund's  tax  matters  is only a  summary  and  relates
principally to Federal tax matters. Thus, shareholders are encouraged to consult
with their personal tax advisors.

MANAGEMENT

OFFICERS  AND  DIRECTORS OF THE FUND.  The  following  table sets forth  certain
information with respect to the officers and directors of the Funds:

Robert F. Galligan, age 62        Business Administration Department Chairman, 
Director                          Associate Professor, Grand View College; 
                                  Director, Liquid Assets Fund.

Chad L. Hensley, age 73           Retired President and CEO, Preferred Risk 
Director                          Mutual Insurance Company; Director, 
                                  Liquid Assets Fund.

Fred Lorber, age 73               Chairman of Board,  Lortex Inc., a 
Chairman and Director             manufacturer of textiles; Chairman and 
                                  Director, Liquid Assets Fund.

Darwin T. Lynner, Jr., age 53     President, Darwin T. Lynner, Co., Inc., a 
Director                          property management company; Director, 
                                  Liquid Assets Fund.

Mark A. McClurg*, age 44          Vice President, Secretary and Senior Managing 
Treasurer and Director            Director of Investors Management Group and 
                                  IMG Financial Services, Inc.; Treasurer and 
                                  Director, Liquid Assets Fund.

David W. Miles*,  age 40          President, Treasurer and Senior Managing 
President  and Director           Director of Investors Management Group, and 
                                  IMG Financial Services, Inc.; President and 
                                  Director, Liquid Assets Fund.

Richard A. Miller, age 57         Vice President & General Counsel, Farmers 
Director                          Casualty Company Mutual, Director,Liquid 
                                  Assets Fund.

Ruth L. Prochaska*, age 45        Controller/Compliance Officer of Investors 
Secretary                         Management Group, and IMG Financial 
                                  Services, Inc.; Secretary, Liquid Assets Fund.

William E. Timmons, age 73        Partner in Patterson, Lorentzen, Duffield,
Director                          Timmons, Irish & Becker; Director, Liquid 
                                  Assets Fund.

Steven E. Zumbach, age 47         Attorney at Belin, Harris, Lamson, McCormick;
Director                          Director, Liquid Assets Fund.

     *Messrs.  McClurg,  Miles, and Ms.  Prochaska are deemed  to be "interested
persons" (as that term is  defined in the Investment Company Act of 1940) of the
Fund and the Advisor.

The mailing  address of all  officers  and  directors  of the Fund is 2203 Grand
Avenue, Des Moines, Iowa 50312-5338.

The Fund pays a fee of $250 per Board meeting and $100 per committee  meeting to
directors who are not interested  persons of the Advisor.  The directors  waived
their fees for one board  meeting  during the fiscal  year ended June 30,  1997.
Under the  Management  Agreement  other  remuneration,  if any, of officers  and
directors is paid by the Advisor.


COMPENSATION TABLE

                                 Aggregate             Total Compensation From
      Name of                  Compensation                 Fund and Fund
Person, Position                 From Fund             Complex Paid to Director

Robert F. Galligan               $  750                       $   2,950
Director

Chad L. Hensley                     750                           2,950
Director

Fred Lorber                         500                           2,150
Director

Darwin T. Lynner, Jr.               750                           2,950
Director

Mark A. McClurg                       0                               0
Treasurer and  Director

David W. Miles                        0                               0
President and Director

Richard A. Miller                   750                           2,950
Director

William E. Timmons                  750                           2,950
Director

Steven E. Zumbach                   750                           2,950
Director

MANAGEMENT  OF THE  ADVISOR.  David W. Miles and Mark A.  McClurg,  are  control
persons of the  Advisor and each  beneficially  own more than ten percent of the
outstanding  voting  securities  of the Advisor.  Senior  Managing  Directors of
Investors Management Group, are David W. Miles and Mark A. McClurg.  They intend
to devote substantially all their time to the operation of the Advisor.

THE INVESTMENT MANAGEMENT AGREEMENT

See "Management and Fees" in the Prospectus for certain  information  concerning
Investors Management Group.

The Advisor  furnishes  continuous  investment  supervision  to the Fund under a
Management and Investment Advisory Agreement (the "Management  Agreement").  For
its  services  the Advisor is entitled  to receive a fee,  computed  and accrued
daily and payable  monthly,  at the following  rate on the average daily closing
net asset value of the Fund:

                   Net Assets                                  Annual Rate

    For assets up to $200,000,000                              .25 percent
    For assets in excess of  $200,000,000 to $300,000,000      .24 percent
    For assets in excess of  $300,000,000 to $400,000,000      .23 percent
    For assets in excess of  $400,000,000 to $500,000,000      .22 percent
    For assets in excess of  $500,000,000 to $600,000,000      .21 percent
    Over $600,000,000                                          .20 percent

The above stated rates were voluntarily reduced by the Advisor from a maximum of
0.50 percent effective January 1, 1991.

From time to time,  the  Advisor may  voluntarily  waive all or a portion of the
management  fee and/or  absorb  certain  expenses  of the Fund  without  further
notification  of the  commencement  or termination of such waiver or absorption.
Any such waiver will have the effect of lowering the overall  expense  ratio for
the Fund and  increasing  the Funds  overall  yield to investors at the time any
such amounts are waived and/or absorbed.

For the  period  September  1,  1996  through  January  15,  1997,  the  Advisor
voluntarily  waived all of its  advisory  fees for the Fund and the  Distributor
waived 0.25  percent of the 12b-1 fees and  reimbursed  certain  expenses of the
Fund. The Advisor and the Distributor terminated the waiver and reimbursement on
January 15, 1997.

Under the Management  Agreement,  the Advisor is  responsible  for selecting the
Fund's  portfolio  securities,  including the  solicitation and approval of Iowa
commercial  banks  selected  as  Participating  Banks  from  which  the Fund may
purchase  participation  interests in  tax-exempt  debt  obligations  subject to
Liquidity and Servicing  Agreements  or which may issue  irrevocable  letters of
credit  to  back  the  demand  repayment  commitments  of the  issuers  of  such
obligations. A careful review of the financial condition and loan loss record of
a prospective  bank will be undertaken prior to the bank being approved to enter
into a Liquidity and Servicing  Agreement  and, once approved,  a  Participating
Bank's  financial  condition  and loan loss  record  will be  reviewed  at least
annually thereafter.

The principal  criteria which the Advisor will consider in approving,  rejecting
or terminating  Liquidity and Servicing Agreements with Participating Banks will
include a bank's (a) ratio of capital to deposits; (b) ratio of loan charge offs
to  average  loans  outstanding;  (c) ratio of loan loss  reserves  to net loans
outstanding  and (d) ratio of capital to total assets.  Ordinarily,  the Advisor
will  recommend  that  the Fund not  enter  into or  continue  a  Liquidity  and
Servicing  Agreement  with any bank whose ratios (as  described  above) are less
favorable  than the average of all Iowa banks.  The Advisor will also consider a
bank's  classified loan  experience,  historical and current earnings and growth
trends,  quality and liquidity of  investments  and stability of management  and
ownership. Typically, the Advisor will utilize a variety of information sources,
including  annual audited  financial  statements,  unaudited  interim  financial
statements,  quarterly  reports of condition  and income  filed with  regulatory
agencies  and  periodic  examination  reports  (if  available)  and  reports  of
federally insured banks concerning past-due-loans,  renegotiated loans and other
loan problems.

The Advisor also provides office space and management and other personnel to the
Fund and pays the costs of computing the net asset value of the Fund and related
bookkeeping  expenses.  The  Advisor  will bear any sales or  promotional  costs
incurred in connection with the sale of the Fund's shares.

The Fund  pays all  expenses  of  operations  not  specifically  assumed  by the
Advisor. These include: custodian,  transfer agent and shareholder recordkeeping
charges;  charges for the  services  of legal  counsel  and  independent  public
accountants;  compensation  of directors  other than those  affiliated  with the
Advisor and expenses  incurred by them in connection  with their services to the
Fund;  certain  insurance  premiums;  expenses of printing and  distributing  to
shareholders  notices,  proxy solicitation  material,  prospectuses and reports;
brokers' commissions;  taxes;  interest; and expenses of complying with Federal,
state and other laws.

The  Advisor  has also  agreed to  reimburse  the Fund,  up to the amount of the
advisory fees paid to the Advisor,  to the extent that the total annual expenses
of the Fund,  exclusive of all taxes,  interest,  brokers' commissions and other
related  charges,  but  including  fees  paid to the  Advisor,  exceed  the most
restrictive  limits  prescribed  by any state in which  the  Fund's  shares  may
eventually  be offered for sale.  The Fund  believes  that it  presently  is not
subject to any such restrictions. The Fund paid $52,311, $43,217, and $51,871 in
management fees to the Advisor in fiscal 1995, 1996, and 1997, respectively.

The Management  Agreement  approved by the sole  shareholder of the Fund on July
14, 1983,  for an initial term  expiring  September  30, 1984,  will continue in
effect as long as it is approved  annually by a majority of those  directors who
are not parties to the  Management  Agreement  or  "interested  persons" of such
parties  and by either the board of  directors  of the Fund or a majority of the
outstanding voting securities of the Fund. The Management Agreement for the Fund
which was last approved by the Fund's  directors,  as described above, on August
13, 1996, may be terminated by either party without  penalty on 60 days' written
notice and will automatically terminate in the event of its assignment.

The  Management  Agreements  provide  that  neither  the  Advisor nor any of its
officers or directors,  agents or employees will have any liability to the Funds
or its  shareholders  for any  error  of  judgment,  mistake  of law or any loss
arising  out of any  investments  or  for  any  other  act  or  omission  in the
performance of its duties as investment advisor under the Management  Agreement,
except for  liability  resulting  from willful  misfeasance,  bad faith or gross
negligence on the part of the Advisor in the  performance  of its duties or from
reckless  disregard  by the  Advisor  of its  obligations  under the  Management
Agreement.

OTHER INFORMATION

FEDERAL HOLIDAYS. The Fund will be closed for business and, therefore,  will not
accept  purchase or  redemption  orders nor  calculate  net asset value,  on all
Federal  Holidays -- currently  New Year's Day,  Martin  Luther  King,  Jr. Day,
President's  Day,  Memorial  Day,  Independence  Day,  Labor Day,  Columbus Day,
Thanksgiving Day, Veterans Day and Christmas Day.

PORTFOLIO TRANSACTIONS.  Subject to policies set forth by the board of directors
of the Fund, the Advisor is authorized to determine,  consistent with the Fund's
investment objectives and policies, which securities will be purchased, sold and
held by the Fund. Most of the Fund's portfolio securities will be purchased on a
principal  basis directly from the issuer,  from banks,  underwriters  or market
makers and, thus, will not involve payment of a brokerage commission. There were
no "agency"  transactions in the last three fiscal years and hence, no brokerage
commissions  paid. Such purchases may include a discount,  concession or mark-up
retained by an  underwriter  or dealer.  The Advisor is authorized to select the
brokers  or dealers  that will  execute  the  purchases  and sales of  portfolio
securities  and is directed to use its best efforts to obtain the best available
price  and most  favorable  execution  on  brokerage  transactions.  Some of the
portfolio  transactions  may be directed to brokers who furnish special research
and  statistical  information  or services  rendered in the  execution of orders
which are of benefit to the  Adviser.  These may include  advice or  information
with respect to particular securities or issuers, information concerning general
market or economic  conditions  and the obtaining of  information  from brokers,
underwriters  or  market  makers.  While no  dollar  value can be placed on such
information  or services,  it allows the Adviser to supplement  its own research
and analysis activities which can reduce its costs but not those of the Fund.

ORGANIZATION  AND  SHARES OF THE  FUND.  The Fund is an  open-ended  diversified
management  investment company organized as an Iowa corporation in January 1983,
under the name Iowa Tax Free Liquid Assets Fund,  Inc. On October 13, 1987,  the
Fund changed its name to IMG Tax Exempt  Liquid  Assets Fund,  Inc. On September
25,  1996,  the Fund  increased  its  authorized  capital  from 200 million to 5
billion shares of Common Stock,  par value $.001 per share,  changed its name to
Municipal  Assets Fund, and amended the Articles of  Incorporation  to authorize
the  Board of  Directors  to issue one or more  additional  classes  of  shares.
Simultaneously,  the Board approved the  redesignation of the existing shares as
"Sweep Shares" and the issuance of "Trust Shares" and "Institutional Shares".

Sweep Shares of the Fund are offered to individual and  institutional  investors
(acting on their own behalf or on the behalf of their  customers).  Sweep Shares
are normally offered through financial  institutions providing automatic "sweep"
investment  programs  to  their  customers,  and bear  the  costs of the  Fund's
Distribution Plan (See "Purchases of Fund Shares" above.)

Trust Shares are offered to individual and  institutional  investors  (acting on
their own behalf or on the behalf of their customers). Trust Shares are normally
offered through trust  organizations  or others providing  shareholder  services
such as establishing  and  maintaining  accounts and records for their customers
who invest in such Shares, assisting customers in processing purchase,  exchange
and redemption requests, and responding to customers' inquiries concerning their
investments.  Trust  Shares  also  bear the costs of the  Fund's  Administrative
Services Plan (See "Purchases of Fund Shares" above.)

Institutional  Shares of the Fund are offered to  individual  and  institutional
investors directly by the Fund's Distributor.

All Shares bear their  pro-rata  portion of all  operating  expenses paid by the
Fund,  except that Sweep Shares bear the full costs of the Distribution Plan and
Trust  Shares  bear  the  full  costs  of  the  Administrative   Services  Plan.
Institutional Shares bear no distribution and/or Administrative Services fees.

Shareholders are entitled to one vote for each full Share held and proportionate
fractional  votes  for  fractional  Shares  held.  Shares of each Fund will vote
together and not by class unless otherwise  required by law or permitted by each
Fund's Board of Directors. All shareholders of each Fund will vote together as a
single class on matters relating to the Fund's investment advisory agreement and
investment objective and fundamental policies. Only holders of Sweep Shares will
vote on matters  relating  to the  Distribution  Plan for Sweep  Shares and only
holders of Trust Shares will vote on matters  pertaining  to the  Administrative
Services Plan for Trust Shares.

Shares of the Funds have  non-cumulative  voting  rights and,  accordingly,  the
holders of more than 50 percent of the Fund's outstanding  shares  (irrespective
of class) may elect all of the Directors.  Shares have no preemptive  rights and
only such  conversion and exchange  rights as each Fund's Board may grant in its
discretion.  When-issued for payment as described in the Prospectus, Shares will
be fully paid and nonassessable.

REPORTS TO  SHAREHOLDERS.  Semiannual and annual reports will include  financial
statements which, in the case of the annual report, will be reported upon by the
Fund's  independent  auditors,  KPMG Peat  Marwick  LLP.  The  Annual  Report is
incorporated  herein  by  reference  into the  Fund's  Statement  of  Additional
Information  and is available upon request  without charge by calling the number
on the cover page of this Statement of Additional Information.

PRINCIPAL  SHAREHOLDERS AND CONTROL PERSONS. As of August 31, 1997, AMCORE Bank,
N.A., Rockford,  Illinois,  and Microtronics,  8 N. Washington St., Iola, Kansas
66749,  directly or  indirectly  owned  approximately  6,784,272  shares  (22.22
percent) and 1,758,569 shares (5.74 percent),  respectively,  of the outstanding
Fund  shares.  To the  knowledge  of  the  Fund,  no  other  shareholders  owned
beneficially  as of  the  record  date  five  percent  or  more  of  the  Fund's
outstanding  shares and the Fund's  officers and directors as a group owned less
than 1 percent of the Fund's shares.

CUSTODIAN,  TRANSFER AGENT AND DIVIDEND PAYING AGENT. The Fund's Custodian holds
cash for the purchase and  redemption of the Fund's  shares.  The Custodian will
hold the Fund's  portfolio  investments  which may,  in part,  be  deposited  in
central depository systems as permitted by Federal law. AMCORE Investment Group,
N.A.,  Rockford,  Illinois,  serves as the Fund's  custodian.  The Fund has also
contracted with IMG to provide certain accounting services including transfer of
shares,  disbursement of dividends and the maintenance of shareholder accounting
records.

LEGAL  OPINION.  Messrs.  Cline,  Williams,  Wright,  Johnson &  Oldfather  have
rendered an opinion to the Fund with  respect to legality of the shares  offered
in the Prospectus, tax matters, and Glass-Steagall Act matters.

Independent Auditors.  KPMG Peat Marwick LLP, 2500 Ruan Center, Des Moines, Iowa
50309, has been selected unanimously by the members of the board of directors of
the Fund who are not  interested  persons of the Fund as the Fund's  independent
auditors to examine the books and  securities of the Fund and to report upon the
financial statements of the Fund.


<PAGE>


                                   APPENDIX A

         DESCRIPTION  OF BOND  RATINGS.  The Fund  invests  in  tax-exempt  debt
obligations,  including  both  bonds and  notes,  rated in the top two grades by
Moody's and S & P. These ratings have to do with the  financial  strength of the
issuer of the obligations at the time they are first issued.  The ratings do not
reflect  opinions  regarding  the  market  value  or  the  marketability  of the
obligations. Both could be affected by a change in rating, however. Moody's four
highest ratings are Aaa, Aa, A and Baa. S & P's are AAA, AA, A and BBB.

         Bonds rated Aaa or AAA are judged to be of the best  quality.  Interest
and principal  are secure with market  prices  responsive to changes in interest
rates.

         Bonds  rated Aa or AA are also  judged to be of high  quality  although
interest  and  principal do not enjoy the margin of safety that would be true of
bonds rated Aaa or AAA.  Long-term  risks would be somewhat  greater also,  with
price fluctuations primarily the result of interest rate changes.

         Bonds rated A by the two rating  agencies are considered to be of upper
medium grade. While interest and principal  protection is judged to be adequate,
it  could  be  susceptible  to  future  impairment.  While  the  price  of  such
obligations will be affected principally by interest rate fluctuations, economic
conditions will also have an impact.

         Bonds  rated  Baa or  BBB  are  considered  medium  grade  obligations.
Interest  and  principal  are  adequately  secure  over the  short-term  but the
obligations may be somewhat  speculative.  Changing economic conditions may also
impact the security of the  indebtedness  resulting in market  prices being more
affected by changes therein than by interest rate fluctuations.

         TAX-EXEMPT  NOTE AND COMMERCIAL  PAPER RATINGS.  Ratings for tax-exempt
notes are designated "MIG" (Moody's  Investment  Grade) by Moody's.  Notes rated
MIG-1 are the  highest  quality  and  enjoy  excellent  protection  by virtue of
established  cash flows available for debt service or ready access to the market
for refinancing, or both.

         Notes  rated  MIG-2 are high  quality  with ample cash flow  protection
although less than available to obligations bearing the top rating.

         Notes  rated  MIG-3 are of good  quality as  measured  by the  relevant
factors associated with  credit-worthiness.  However, the unquestioned financial
strength  ascribed to issues in the two preceding  rating  categories is lacking
and ready access to the market for refinancing is less well established.

         Tax-exempt commercial paper rated Prime-1 (P-1) by Moody's is supported
by the issuer's superior capacity to repay, while commercial paper rated Prime-2
(P-2) is backed by strong repayment capacity.

         S & P's commercial rating A-1 indicates the obligations enjoy extremely
strong credit backing in terms of the issuer's  capacity to repay,  while an A-2
rating indicates strong issuer repayment capacity exists.


<PAGE>
                                   APPENDIX B

TAX-EXEMPT VS. TAXABLE  YIELDS.  Set forth below is a table which may be used to
compare  equivalent  taxable yields to tax-exempt rates of return based upon the
investor's  level of taxable  income.  The rates shown are those in effect under
the Internal Revenue Code as of January 1, 1997 through December 31, 1997.
<TABLE>
<CAPTION>

                                         Marginal      The following TAX-EXEMPT INTEREST RATES:
    TAXABLE INCOME*         Single        Income        3.5%     4.0%       4.5%      5.0%      5.5%      6.0%      6.5%
     Joint Return           Return         Tax
                                          Bracket      Equal the TAXABLE INTEREST RATES shown below:

<S>                   <C>                  <C>         <C>        <C>       <C>       <C>        <C>       <C>       <C>  
  $  6,450-$ 45,450   $  2,650-$  26,150   15.0%       4.12%      4.71%     5.29%     5.88%      6.47%     7.06%     7.65%
    45,450-  92,850     26,150-   55,500   28.0%       4.86%      5.56%     6.25%     6.94%      7.64%     8.33%     9.03%
    92,850- 156,000     55,500-  126,150   31.0%       5.07%      5.80%     6.52%     7.25%      7.97%     8.70%     9.42%
   156,000- 275,300    126,150-  272,550   36.0%       5.47%      6.25%     7.03%     7.81%      8.59%     9.38%    10.16%
       Over 275,300         Over 272,550   39.6%       5.79%      6.62%     7.45%     8.28%      9.11%     9.93%    10.76%
Maximum Corporate Rate                     34.0%       5.30%      6.06%     6.82%     7.58%      8.33%     9.09%     9.85%
</TABLE>

*Net  amount  subject to Federal  income tax after  deductions  and  exemptions.
Assumes  alternative  minimum tax is not  applicable  and receipt of  tax-exempt
interest  does not cause any  portion of social  security  benefits  received to
become taxable to the taxpayer.  State tax considerations are excluded.
<PAGE>


                                   SIGNATURES

Pursuant to the  requirements  of the Securities Act of 1933, and the Investment
Company  Act  of  1940,  the  Registrant  certifies  that  it  meets  all of the
requirements for effectiveness of this Registration  Statement  pursuant to Rule
485(b) under the  Securities Act of 1933 and the Registrant has duly caused this
Registration Statement to be signed on its behalf by the undersigned,  thereunto
duly  authorized,  in the City of Des Moines,  State of Iowa, on the 30th day of
September, 1997.


                                        MUNICIPAL ASSETS FUNDS, INC.

                                        By_________/s/ David W. Miles_______
                                                   David W. Miles

Pursuant to the  requirements  of the Securities Act of 1933,  this Amendment to
the Registration Statement has been signed below by the following persons in the
capacities indicated on the date indicated.

      Signature                                Title                       
                                                                           
 ___/s/ David W. Miles__________   President, Principal Executive Officer, 
     David W.  Miles               and Director                            
                                   ________________________________________
                                                                           |
 ___/s/ Fred Lorber_____________   Chairman and Director                   |
     Fred Lorber                                                           |
                                                                           |
 ___/s/ Mark A. McClurg_________   Principal Financial and Accounting      |
     Mark A. McClurg               Officer, Treasurer and Director         |
                                                                           |
 ___/s/ James W. Paulsen________   Vice President and Director             |
     James W. Paulsen                              ________________________|
                                                  | 
 ___/s/ Robert F. Galligan______   Director       |   ___/s/ David W. Miles___
     Robert F. Galligan                           >  by      David W. Miles
                                                  |          Attorney in Fact
 ___/s/ Chad L. Hensley_________   Director       |          September 29, 1997
     Chad L. Hensley                              |
                                                  |
 ___/s/ Darwin T. Lynner, Jr.___   Director       |
     Darwin T. Lynner, Jr.                        |
                                                  |
 ___/s/ Richard A. Miller_______   Director       |
     Richard A. Miller                            |
                                                  |
 ___/s/ William E. Timmons______   Director       |
     William E. Timmons                           |
                                                  |
 ___/s/ Steven E. Zumbach_______   Director       |
     Steven E. Zumbach                            |
                                  ________________|
<PAGE>

                                     PART C

                               OTHER INFORMATION

Item 24.   FINANCIAL STATEMENTS AND EXHIBITS.

           (a) Financial Statements

               (1) Included in Part A:

                   Financial Highlights for the Years Ended 
                   June 30, 1997, 1996, 1995, 1994, 1993, 1992, 1991, 1990, 
                   1989, and 1988 (audited)

               (2) Incorporated by reference in Part B:

                   Independent Auditors' Report dated July 25, 1997

                   Statement of Net Assets, June 30, 1997

                   Statement of Operations for the Year Ended June 30, 1997

                   Statements of Changes in Net Assets for the Two Years Ended 
                   June 30, 1997 and 1996

               (3) Included in Part C:

                   Consent of KPMG Peat Marwick LLP.

           (b) Exhibits

               Exhibit No.   Description
               -----------   -----------

               *1. (a)       Articles of Incorporation, incorporated by
                             reference to the Fund's Pre-Effective Amendment 
                             No. 2, filed August 31, 1983.

               *1. (b)       Amendment to the Articles of Incorporation,
                             incorporated by reference to the Fund's
                             Post-Effective Amendment No. 6, filed 
                             October 22, 1987.

               *1. (c)       Amendment to the Articles of Incorporation,
                             incorporated by reference to the Fund's
                             Post-Effective Amendment No. 7, filed 
                             October 13, 1988.

               *1. (d)       Form of Amendment to the Articles of Incorporation,
                             incorporated by reference to the Fund's
                             Post-Effective Amendment No. 17, filed
                             October 15, 1996.

               *2.           Bylaws, incorporated by reference to the 
                             Fund's Pre-Effective Amendment No. 2, 
                             filed August 31, 1983.

               *4.           Specimen Common Stock Certificate, incorporated
                             by reference to the Fund's Pre-Effective
                             Amendment No. 2, filed August 31, 1983.

               *5.           Management and Investment Advisory Agreement,
                             incorporated by reference to the Fund's
                             Pre-Effective Amendment No. 2, filed 
                             August 31, 1983.

               *6.           Underwriting Agreement, incorporated by 
                             reference to the Fund's Pre-Effective 
                             Amendment No. 2, filed August 31, 1983.

               *8. (a)       Custodian Agreement with Mercantile Bank of 
                             Western Iowa, Des Moines, incorporated by 
                             reference to the Fund's Registration Statement, 
                             filed January 28, 1983.

               *8. (b)       Check Redemption Agreement, incorporated by 
                             reference to the Fund's Pre-Effective Amendment
                             No. 2, filed August 31, 1983.

               *9. (a)       Form of Master Liquidity and Servicing Agreement,
                             incorporated by reference to the Fund's
                             Pre-Effective Amendment No. 2, filed
                             August 31, 1983.

               *9. (b)       Transfer Agent and Administrative Services
                             Agreement, incorporated by reference to the 
                             Fund's Post-Effective Amendment No. 3, filed 
                             October 1, 1984.

               *9. (f)       Shareholder Services Plan, incorporated by
                             reference to the Fund's Post-Effective
                             Amendment No. 17, filed October 15, 1996.

               *9. (g)       Shareholder Services Agreement, incorporated by
                             reference to the Fund's Post-Effective
                             Amendment No. 17, filed October 15, 1996.

               *10.          Consent of Messrs. Cline, Williams, Wright,
                             Johnson & Oldfather, incorporated by reference to
                             the Fund's Post-Effective Amendment No. 3, 
                             filed October 1, 1984.

               *13.          Representations of Initial Shareholder,
                             incorporated by reference to the Fund's  
                             Registration Statement, filed January 28, 1983.

               *15.(a)       Form of Rule 12b-1 Plan as amended, incorporated
                             by reference to the Fund's Post-Effective
                             Amendment No. 10, filed November 8, 1990.

               *15.(b)       Form of Agreements, incorporated by reference 
                             to the Fund's Post-Effective Amendment No. 6,
                             filed October 22, 1987.

               *15. (c)      Form of Amended Rule 12b-1 Plan, incorporated by
                             reference to the Fund's Post-Effective
                             Amendment No. 17, filed October 15, 1996.

                16.          Calculation of Yield Quotations, included in 
                             Part B of this Registration Statement.

                17.          Financial Data Schedule

               *18.          Rule 18f(3) Plan, incorporated by
                             reference to the Fund's Post-Effective
                             Amendment No. 17, filed October 15, 1996.


- -----------------------------------
*All previously filed as indicated.

Item 25.      PERSONS CONTROLLED BY OR UNDER COMMON CONTROL WITH REGISTRANT.

         None

Item 26.      NUMBER OF HOLDERS OF SECURITIES.

  Title of Class                              Number of Record Holders
  --------------                              ------------------------

  Sweep Shares                                44 as of August 31, 1997
  Trust Shares                                2 as of August 31, 1997
  Institutional Shares                        3 as of August 31, 1997

Item 27.      INDEMNIFICATION.

              Section  496A.4(19) of the Iowa Business  Corporation Act requires
or permits  indemnification  of officers and directors of the  Registrant  under
circumstances  set  forth  therein.  Reference  is  made to  Article  Ten of the
Articles of  Incorporation  (Exhibit  1(b)  hereto),  Article X of the Bylaws of
Registrant  (Exhibit 2 hereto) and to Section 10 of the  Underwriting  Agreement
(Exhibit 6 hereto) for additional indemnification provisions.

              Insofar  as  indemnification  for  liabilities  arising  under the
Securities Act of 1933 may be permitted to directors,  officers and  controlling
persons of the Registrant pursuant to the foregoing provisions or otherwise, the
Registrant  has been advised that in the Opinion of the  Securities and Exchange
Commission  such  indemnification  by the Registrant is against public policy as
expressed in the Act and, therefore,  may be unenforceable.  In the event that a
claim for such indemnification (except insofar as it provides for the payment by
the  Registrant  of  expenses  incurred  or  paid  by  a  director,  officer  or
controlling person in the successful defense of any action,  suit or proceeding)
is asserted  against the  Registrant by such  director,  officer or  controlling
person and the Securities and Exchange  Commission is still of the same opinion,
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  of whether or not 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 28.      BUSINESS AND OTHER CONNECTIONS OF INVESTMENT ADVISOR.

                                                         Principal Occupations
   Name             Positions with Advisor         Present and for Past 2 Years)
   ----             ----------------------         ----------------------------


Mark A. McClurg     Vice President, Secretary,     Sales & Marketing Manager.
                    Director and Senior            Joined IMG in February, 1989.
                    Managing Director

David W. Miles      President, Treasurer,          See caption "Management" in 
                    Director, and Senior           the Statement of Additional
                    Managing                       Information forming a part
                    Director                       of this Registration
                                                   Statement.


Item 29.      PRINCIPAL UNDERWRITERS.

              (a)   Liquid Assets Funds, Inc.

              (b)

Name and Principal          Positions and Offices        Positions and Offices
 Business Address              with Underwriter             with Registrant
- -----------------           ---------------------------- ----------------------

Mark A. McClurg             Vice President, Secretary,       Treasurer and
2203 Grand Avenue           Director and Senior Managing     Director
Des Moines, IA  50312-5338  Director

David W. Miles              President, Treasurer,            President and 
2203 Grand Avenue           Director, and Senior Managing    Director
Des Moines, IA  50312-5338  Director


              (c)   Not applicable.

Item 30.      LOCATION OF ACCOUNTS AND RECORDS.

              Shareholder  account  records  will  be  maintained  by  Newtrend,
Regency West 7, 4400 Westown Parkway,  West Des Moines, Iowa, 50265, pursuant to
an arrangement with Investors  Management  Group.  All other required  accounts,
books and records will be  maintained by Ruth L.  Prochaska,  2203 Grand Avenue,
Des Moines, Iowa 50312-5338.

Item 31.      MANAGEMENT SERVICES.

              Not applicable.

Item 32.      UNDERTAKINGS.

              Subject  to the  terms  and  conditions  of  Section  15(d) of the
Securities Exchange Act of 1934, the undersigned Registrant hereby undertakes to
file with the Securities and Exchange Commission such supplementary and periodic
information,  documents  and  reports  as  may be  prescribed  by  any  rule  or
regulation of the Commission  heretofore or hereafter  duly adopted  pursuant to
authority conferred in that section.
<PAGE>
                        CONSENT OF INDEPENDENT AUDITORS


To the Directors and Shareholders of
Municipal Assets Fund:


We consent to the use of our report  incorporated herein by reference and to the
references  to  our  Firm  under  the  headings   "FINANCIAL   HIGHLIGHTS"   and
"SHAREHOLDER  SERVICES -- Statements and Reports" in the Prospectus and "Reports
to  Shareholders"  and  "Independent  Auditors" in the  Statement of  Additional
Information.




KPMG Peat Marwick LLP

Des Moines, Iowa
September ___, 1997

<PAGE>
 
                          MUNICIPAL ASSETS FUNDS, INC.


                                 EXHIBIT VOLUME

                                       TO

                       POST-EFFECTIVE AMENDMENT NUMBER 19

                                       TO

                        FORM N-1A REGISTRATION STATEMENT

<PAGE>
                           MUNICIPAL ASSETS FUNDS, INC.

                                  EXHIBIT INDEX

Exhibit No.   Description                                                  Page
- -----------   -----------                                                  ----

   *1.  (a)   Articles of Incorporation, incorporated by reference 
              to the Fund's Pre-Effective Amendment, filed 
              August 31, 1983.............................................

   *1.  (b)   Amendment to the Articles of Incorporation, incorporated
              by reference to the Fund's Post-Effective Amendment 
              No. 6, filed October 22, 1987...............................

   *1.  (c)   Amendment to the Articles of Incorporation, incorporated
              by reference to the Fund's Post-Effective Amendment 
              No. 7, filed October 13, 1988...............................

   *1.  (e)   Form of Amendment to Articles of Incorporation,  
              incorporated by reference to the Fund's Post-Effective 
              Amendment No. 17, filed October 15, 1996....................

   *2.        Bylaws, incorporated by reference to the Fund's 
              Pre-Effective Amendment No. 2, filed August 31, 1983........

   *4.        Specimen Common Stock Certificate, incorporated by  
              reference to the Fund's Pre-Effective Amendment No. 2, 
              filed August 31, 1983.......................................

   *5.        Management and Investment Advisory Agreement, incorporated  
              by reference to the Fund's Pre-Effective Amendment 
              No. 2, filed August 31, 1983................................

   *6.        Underwriting Agreement, incorporated by reference to the 
              Fund's Pre-Effective Amendment No. 2, filed 
              August 31, 1983.............................................

   *8.  (a)   Custodian Agreement with Mercantile Bank of Western Iowa, 
              Des Moines, incorporated by reference to the Fund's 
              Registration Statement, filed January 28, 1983..............

   *8.  (b)   Check Redemption Agreement, incorporated by reference to 
              the Fund's Pre-Effective Amendment No. 2, filed 
              August 31, 1983.............................................

   *9.  (a)   Form of Master Liquidity and Servicing Agreement, 
              incorporated by reference to the Fund's Pre-Effective 
              Amendment No. 2, filed August 31, 1983......................

   *9.  (b)   Transfer Agent and Administrative Services Agreement, 
              incorporated by reference to the Fund's Post-Effective 
              Amendment No. 3, filed October 1, 1984......................

   *9.  (f)   Shareholder Services Plan, incorporated by reference to 
              the Fund's Post-Effective Amendment No. 17, filed 
              October 15, 1996. ..........................................

   *9.  (g)   Shareholder Services Agreement, incorporated by reference 
              to the Fund's Post-Effective Amendment No. 17, filed 
              October 15, 1996. ..........................................

  *10.        Consent of Messrs. Cline, Williams, Wright, Johnson & 
              Oldfather, incorporated by reference to the Fund's 
              Post-Effective Amendment No. 3, filed October 1, 1984.......

  *13.        Representations of Initial Shareholder, incorporated by 
              reference to the Fund's Registration Statement, filed 
              January 28, 1983............................................


  *15.  (a)   Form of Rule 12b-1 Plan as Amended, incorporated by 
              reference to the Fund's Post-Effective Amendment No. 10, 
              filed  November 8, 1990.....................................

  *15.  (b)   Form of Agreements, incorporated by refernce to the Fund's  
              Post-Effective Amendment No. 6, filed October 22, 1987......

  *15.  (c)   Form of Amended Rule 12b-1 Plan, incorporated by refernce 
              to the Fund's Post-Effective Amendment No. 17, filed 
              October 15, 1996............................................

   16.        Calculation of Yield Quotations, included in Part B of this 
              Registration Statement......................................

   17.        Financial Data Schedule.....................................

  *18.        Rule 18f(3) Plan, incorporated by reference to the Fund's 
              Post-Effective Amendment No. 17, filed October 15, 1996.....


- ------------------
*Previously filed

                                   EXHIBIT 16

                  SCHEDULE OF CALCULATIONS OF YIELD QUOTATIONS
<PAGE>
                   COMPUTATION OF CURRENT AND EFFECTIVE YIELD
                             MUNICIPAL ASSETS FUND
                                  SWEEP SHARES
                                
                                
                ENDING                                               EARNINGS
               DIVIDEND                          SHARES                PER
               PAYABLE          EARNINGS       OUTSTANDING            SHARE
                                
23-Jun-97     $ 9,341.99        $412.80       4,689,895.68  
24-Jun-97     $ 9,743.49        $401.50       4,552,362.36         0.0000881960
25-Jun-97     $10,163.82        $420.33       4,677,300.08         0.0000898659
26-Jun-97     $10,596.40        $432.58       4,674,029.10         0.0000925497
27-Jun-97     $11,038.55        $442.15       4,683,110.98         0.0000944137
28-Jun-97     $11,480.70        $442.15       4,683,110.98         0.0000944137
29-Jun-97     $11,922.85        $442.15       4,683,110.98         0.0000944137
30-Jun-97     $12,339.08        $416.23       4,663,694.11         0.0000892490
                                
INCOME FOR ONE SHARE FOR THE SEVEN DAYS ENDED JUNE 30              0.0006431018
                                
                                
BASE PERIOD RETURN =                           0.000643102
(CHANGE/BEGINNING ACCOUNT VALUE)                                
                                
CURRENT YIELD =                                      3.35%
BASE PERIOD RETURN * (365/7)                   0.033533166
                                
EFFECTIVE YIELD =                              0.034053381
((1+CURRENT YIELD/12)^12)-1                          3.41%
<PAGE>                                
                   COMPUTATION OF CURRENT AND EFFECTIVE YIELD
                             MUNICIPAL ASSETS FUND
                                  TRUST SHARES
                                
                                
                ENDING                                               EARNINGS
               DIVIDEND                          SHARES                PER
               PAYABLE          EARNINGS       OUTSTANDING            SHARE
                                
23-Jun-97      $54,372.32      $2,521.94      26,583,680.65         
24-Jun-97      $56,801.62      $2,429.30      25,559,760.15        0.0000950439
25-Jun-97      $59,336.75      $2,535.13      26,212,141.94        0.0000967159
26-Jun-97      $61,893.19      $2,556.44      25,719,486.60        0.0000993970
27-Jun-97      $64,441.75      $2,548.56      25,167,492.95        0.0001012640
28-Jun-97      $66,990.31      $2,548.56      25,167,492.95        0.0001012640
29-Jun-97      $69,538.87      $2,548.56      25,167,492.95        0.0001012640
30-Jun-97      $71,944.75      $2,405.88      25,036,386.30        0.0000960953
                                
INCOME FOR ONE SHARE FOR THE SEVEN DAYS ENDED JUNE 30              0.0006910440
                                
                                
BASE PERIOD RETURN =                            0.000691044
(CHANGE/BEGINNING ACCOUNT VALUE)                                
                                
CURRENT YIELD =                                       3.60%
BASE PERIOD RETURN * (365/7)                    0.036033010
                                
EFFECTIVE YIELD =                               0.036634096
((1+CURRENT YIELD/12)^12)-1                           3.66%
<PAGE>                                
                   COMPUTATION OF CURRENT AND EFFECTIVE YIELD
                             MUNICIPAL ASSETS FUND
                              INSTITUTIONAL SHARES
                                
                                
                ENDING                                               EARNINGS
               DIVIDEND                          SHARES                PER
               PAYABLE          EARNINGS       OUTSTANDING            SHARE
                                
23-Jun-97       $30.02            $0.73         7,210.42      
24-Jun-97       $30.75            $0.73         7,210.42           0.0001012424
25-Jun-97       $31.50            $0.75         7,210.42           0.0001040161
26-Jun-97       $32.27            $0.77         7,210.42           0.0001067899
27-Jun-97       $33.05            $0.78         7,210.42           0.0001081768
28-Jun-97       $33.83            $0.78         7,210.42           0.0001081768
29-Jun-97       $34.61            $0.78         7,210.42           0.0001081768
30-Jun-97       $35.35            $0.74         7,210.42           0.0001026293
                                
INCOME FOR ONE SHARE FOR THE SEVEN DAYS ENDED JUNE 30              0.0007392080
                                
                                
BASE PERIOD RETURN =                         0.000739208
(CHANGE/BEGINNING ACCOUNT VALUE)                                
                                
CURRENT YIELD =                                    3.85%
BASE PERIOD RETURN * (365/7)                 0.038544416
                                
EFFECTIVE YIELD =                            0.039232693
((1+CURRENT YIELD/12)^12)-1                        3.92%

<TABLE> <S> <C>


<ARTICLE>                                            6
<LEGEND>
     THIS SCHEDULE  CONTAINS SUMMARY  FINANCIAL  INFORMATION  EXTRACTED FROM THE
     REGISTRANT'S ANNUAL REPORT FOR THE PERIOD JULY 1, 1996 TO JUNE 30, 1997 AND
     IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH REPORT  PREVIOUSLY  FILED
     WITH THE COMMISSION ON OR ABOUT AUGUST 11, 1997 PURSUANT TO RULE 30B2-1.
</LEGEND>
<CIK>                         0000714291
<NAME>                        MUNICIPAL ASSETS FUND
<MULTIPLIER>                                   1
<CURRENCY>                                     U.S.DOLLARS
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                              JUN-30-1997
<PERIOD-START>                                 JUL-01-1996
<PERIOD-END>                                   JUN-30-1997
<EXCHANGE-RATE>                                1
<INVESTMENTS-AT-COST>                          29545943
<INVESTMENTS-AT-VALUE>                         29545943
<RECEIVABLES>                                  255960
<ASSETS-OTHER>                                 0
<OTHER-ITEMS-ASSETS>                           0
<TOTAL-ASSETS>                                 29801903
<PAYABLE-FOR-SECURITIES>                       0
<SENIOR-LONG-TERM-DEBT>                        0
<OTHER-ITEMS-LIABILITIES>                      94612
<TOTAL-LIABILITIES>                            94612
<SENIOR-EQUITY>                                0
<PAID-IN-CAPITAL-COMMON>                       0
<SHARES-COMMON-STOCK>                          29707291
<SHARES-COMMON-PRIOR>                          10145763
<ACCUMULATED-NII-CURRENT>                      0
<OVERDISTRIBUTION-NII>                         0
<ACCUMULATED-NET-GAINS>                        0
<OVERDISTRIBUTION-GAINS>                       0
<ACCUM-APPREC-OR-DEPREC>                       0
<NET-ASSETS>                                   29707291
<DIVIDEND-INCOME>                              0
<INTEREST-INCOME>                              795005
<OTHER-INCOME>                                 0
<EXPENSES-NET>                                 162262
<NET-INVESTMENT-INCOME>                        632743
<REALIZED-GAINS-CURRENT>                       0
<APPREC-INCREASE-CURRENT>                      0
<NET-CHANGE-FROM-OPS>                          0
<EQUALIZATION>                                 0
<DISTRIBUTIONS-OF-INCOME>                      632743
<DISTRIBUTIONS-OF-GAINS>                       0
<DISTRIBUTIONS-OTHER>                          0
<NUMBER-OF-SHARES-SOLD>                        112440950
<NUMBER-OF-SHARES-REDEEMED>                    92879682
<SHARES-REINVESTED>                            260
<NET-CHANGE-IN-ASSETS>                         19561528
<ACCUMULATED-NII-PRIOR>                        0
<ACCUMULATED-GAINS-PRIOR>                      0
<OVERDISTRIB-NII-PRIOR>                        0
<OVERDIST-NET-GAINS-PRIOR>                     0
<GROSS-ADVISORY-FEES>                          25305
<INTEREST-EXPENSE>                             0
<GROSS-EXPENSE>                                162262
<AVERAGE-NET-ASSETS>                           32845590
<PER-SHARE-NAV-BEGIN>                          1.000
<PER-SHARE-NII>                                0.029
<PER-SHARE-GAIN-APPREC>                        0.000
<PER-SHARE-DIVIDEND>                           0.029
<PER-SHARE-DISTRIBUTIONS>                      0.000
<RETURNS-OF-CAPITAL>                           0.000
<PER-SHARE-NAV-END>                            1.000
<EXPENSE-RATIO>                                0.009
<AVG-DEBT-OUTSTANDING>                         0
<AVG-DEBT-PER-SHARE>                           0
        

</TABLE>


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