As filed with the Securities and Exchange Commission on January 7, 2002.

                                              Securities Act File No.333-65446
                                       Investment Company Act File No.811-7642

==============================================================================

                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549


                                   FORM N-14
            REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

| |    Pre-Effective Amendment No.         |X|   Post-Effective Amendment No. 1
                       (Check appropriate box or boxes)

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

                             MuniAssets Fund, Inc.
            (Exact Name of Registrant as Specified in Its Charter)

                                (609) 282-2800
             (Registrant's Telephone Number, including Area Code)

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

                            800 Scudders Mill Road
                         Plainsboro, New Jersey 08536
                   (Address of Principal Executive Offices:
                    Number, Street, City, State, Zip Code)

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

                                Terry K. Glenn
                             MuniAssets Fund, Inc.
             800 Scudders Mill Road, Plainsboro, New Jersey 08536
                               Mailing Address:
                P.O. Box 9011, Princeton, New Jersey 08543-9011
                    (Name and Address of Agent for Service)

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

                                  Copies to:

     Frank P. Bruno, Esq.                    Philip L. Kirstein, Esq.
SIDLEY AUSTIN BROWN & WOOD LLP         MERRILL LYNCH INVESTMENT MANAGERS, L.P.
       875 Third Avenue                       800 Scudders Mill Road
   New York, NY 10022-6225                     Plainsboro, NJ 08536











==============================================================================



This amendment consists of the following:

(1)  Facing Sheet of the Registration Statement.
(2)  Part C of the Registration Statement (including signature page).

     The Proxy Statement and Prospectus are incorporated by reference from
Pre-Effective Amendment No. 1 to this Registration Statement (File No.
333-65446) filed on September 10, 2001.

     This amendment is being filed pursuant to Rule 462(d) solely to file as
Exhibit No. 12 to this Registration Statement the opinion of Sidley Austin
Brown & Wood LLP relating to certain tax matters.



                                    PART C

                               OTHER INFORMATION

Item 15.  Indemnification.

     Section 2-418 of the General Corporation Law of the State of Maryland,
Article VI of the Registrant's Articles of Incorporation, which was previously
filed as an exhibit to the Common Stock Registration Statement (as defined
below), Article VI of the Registrant's By-Laws, which was previously filed as
an exhibit to the Common Stock Registration Statement, and the Investment
Advisory Agreement, a form of which was previously filed as an exhibit to the
Common Stock Registration Statement, provide for indemnification.

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

     Reference is made to Section 6 of the Purchase Agreement relating to the
Registrant's Common Stock, a form of which was filed as an exhibit to the
Common Stock Registration Statement.

Item 16. Exhibits.



         
1.   (a)   --  Articles of Incorporation of the Registrant, dated April 14, 1993.  (a)

     (b)   --  Articles of Amendment to Articles of Incorporation.  (a)

2.         --  Amended and Restated By-Laws of the Registrant.  (d)

3.         --  Not Applicable.

4.         --  Form of Agreement and Plan of Reorganization between the Registrant and Merrill Lynch High Income
               Municipal Bond Fund, Inc. (included in Appendix II to the Joint Proxy Statement and Prospectus
               contained in this Registration Statement). (f)

5.   (a)   --  Copies of instruments defining the rights of stockholders, including the relevant portions of
               the Articles of Incorporation and the By-Laws of the Registrant. (b)

     (b)   --  Form of specimen certificate for the Common Stock of the Registrant. (a)

6.         --  Form of Investment Advisory Agreement between Registrant and Fund Asset Management, L.P. (a)

7.   (a)   --  Form of Purchase Agreement. (a)

     (b)   --  Form of Merrill Lynch Standard Dealer Agreement. (a)

8.         --  Not applicable.

9.         --  Form of Custodian Agreement between the Fund and the Bank of New York. (a)

10.        --  Not applicable.

11.        --  Opinion and Clifford Chance Rogers & Wells, LLP, counsel for the Registrant.  f)

12.        --  Opinion of Sidley Austin Brown & Wood, LLP, relating to certain tax matters.

13.        --  Form of Transfer Agency, Dividend Disbursing Agency and Shareholder Servicing Agency Agreement
               between the Registrant and The Bank of New York. (a)

14.  (a)   --  Consent of Deloitte & Touche LLP, independent auditors for the Registrant. (f)




     (b)   --  Consent of Deloitte & Touche LLP, independent auditors for the Merrill Lynch High Income
               Municipal Bond Fund, Inc. (f)

15.        --  Not applicable.

16.        --  Power of Attorney. (e)

17.        --  Code of Ethics. (c)



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

(a)  Refiled on September 10, 2001 as an Exhibit to Pre-Effective Amendment
     No. 1 to the Registrant's Registration Statement on Form N-14 (File No.
     333-65446) (the "N-14 Registration Statement") pursuant to Electronic
     Data Gathering, Analysis and Retrieval (EDGAR) requirements.

(b)  Reference is made to Article V, Article VI (sections 2, 3, 4, 5 and 6),
     Article VII, Article VIII, Article X, Article XI, Article XII and Article
     XIII of the Registrant's Articles of Incorporation, previously filed as
     Exhibit (1) to the Registration Statement, and to Article II, Article III
     (sections 1, 2, 3, 5 and 17), Article VI, Article VII, Article XII,
     Article XIII and Article XIV of the Registrant's By-Laws previously filed
     as Exhibit (2) to the Registration Statement.

(c)  Incorporated by reference to Exhibit 15 to Post-Effective Amendment No. 8
     to the Registration Statement on Form N-1A of Merrill Lynch Middle
     East/Africa Fund, Inc. (File No. 33-55843), filed on March 29, 2000.

(d)  Filed on July 19, 2001 as an Exhibit to the N-14 Registration Statement.

(e)  Included on the signature page of the N-14 Registration Statement and
     incorporated herein by reference

(f)  Filed on September 10, 2001 as an Exhibit to Pre-Effective Amendment No.
     1 to the the N-14 Registration Statement.


Item 17.  Undertakings.

(1)  The undersigned Registrant agrees that prior to any public reoffering of
     the securities registered through use of a prospectus which is part of
     this Registration Statement by any person or party who is deemed to be an
     underwriter within the meaning of Rule 145(c) of the Securities Act of
     1933, as amended, the reoffering prospectus will contain information
     called for by the applicable registration form for reofferings by persons
     who may be deemed underwriters, in addition to the information called for
     by other items of the applicable form.

(2)  The undersigned Registrant agrees that every prospectus that is filed
     under paragraph (1) above will be filed as part of an amendment to the
     registration statement and will not be used until the amendment is
     effective, and that, in determining any liability under the Securities
     Act of 1933, as amended, each post-effective amendment shall be deemed to
     be a new registration statement for the securities offered therein, and
     the offering of securities at that time shall be deemed to be the initial
     bona fide offering of them.



                                  SIGNATURES

         As required by the Securities Act of 1933, this Registration
Statement has been signed on behalf of the Registrant, in the Township of
Plainsboro and State of New Jersey, on the 19th day of December, 2001.

                                         MUNIASSETS FUND, INC.
                                             (Registrant)

                             By: /s/ Donald C. Burke
                                -----------------------------------------------
                                (Donald C. Burke, Vice President and Treasurer)


     As required by the Securities Act of 1933, this Registration Statement
has been signed by the following persons in the capacities and on the dates
indicated.




                Signatures                                  Title                                Date
                ----------                                  -----                                ----

                                                                                 
              Terry K. Glenn*                       President and Director
- -----------------------------------------       (Principal Executive Officer)
             (Terry K. Glenn)

                                                Vice President and Treasurer
             Donald C. Burke*                      (Principal Financial and
- -----------------------------------------            Accounting Officer)
            (Donald C. Burke)

                Joe Grills*                               Director
- -----------------------------------------
                Joe Grills

          Robert S. Salomon, Jr.*                         Director
- -----------------------------------------
          Robert S. Salomon, Jr.

             Melvin R. Seiden*                            Director
- -----------------------------------------
             Melvin R. Seiden

            Stephen B. Swensrud*                          Director
- -----------------------------------------
           Stephen B. Swensrud

*By:-------------------------------------                                              December 19, 2001
     (Donald C. Burke, Attorney-in-Fact)





                                 EXHIBIT INDEX




            
12         --  Opinion of Sidley Austin Brown & Wood LLP, relating to certain tax matters.





                                 SIDLEY AUSTIN BROWN & WOOD LLP


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WRITER'S DIRECT NUMBER                                  WRITER'S E-MAIL ADDRESS






                                                             November 19, 2001




MuniAssets Fund, Inc.
800 Scudders Mill Road
Plainsboro, New Jersey  08536

Merrill Lynch High Income Municipal Bond Fund, Inc.
800 Scudders Mill Road
Plainsboro, New Jersey 08536

     Re:  Reorganization of MuniAssets Fund, Inc.and Merrill Lynch
          High Income Municipal Bond Fund, Inc.
          --------------------------------------------------------

Ladies and Gentlemen:

     You have requested our opinion as to certain Federal income tax
consequences of the acquisition by MuniAssets Fund, Inc. ("MuniAssets") of
substantially all of the assets and the assumption by MuniAssets of
substantially all of the liabilities of Merrill Lynch High Income Municipal
Bond Fund, Inc. ("High Income") and the simultaneous distribution of
newly-issued MuniAssets shares to High Income shareholders (the
"Reorganization"). After the Reorganization, High Income will cease
operations, will have no assets remaining, will have final Federal and state
(if any) tax returns filed on its behalf and will have all of its shares
cancelled under Maryland law.

     This opinion letter is furnished pursuant to (i) the sections entitled
"Agreement and Plan of Reorganization--Procedure" and "Agreement and Plan of
Reorganization--Terms of the Agreement and Plan of Reorganization--Amendments
and Conditions" in the Joint Proxy Statement and Prospectus, dated September
10, 2001 and (ii) Sections 8(g) and 9(g) of the Agreement and Plan of
Reorganization dated September 7, 2001, by and between High Income



November 19, 2001
Page 6

and MuniAssets (the "Plan") as a condition of closing. All terms used herein,
unless otherwise defined, are used as defined in the Plan.

     In rendering our opinion, we have reviewed and relied upon (a) the Plan,
(b) the Registration Statement on Form N-14 (File No. 333-65446),
Pre-Effective Amendment No. 1 thereto and a copy of the Joint Proxy Statement
and Prospectus and the Statement of Additional Information as filed under Rule
497 under the Securities Act of 1933, as amended (the "1933 Act")
(collectively, the "N-14 Registration Statement") under the 1933 Act and the
Investment Company Act of 1940, as amended, filed by MuniAssets with the
Securities and Exchange Commission, and (c) certain representations concerning
the Reorganization made by MuniAssets and High Income in letters dated
November 19, 2001 (the "Representations").

     Based upon current law, including cases and administrative
interpretations thereof and on the reviewed materials listed above, it is our
opinion that:

     1. The acquisition by MuniAssets of substantially all of the assets of
High Income, as described in the Plan, will constitute a reorganization within
the meaning of Section 368(a)(1)(C) of the Internal Revenue Code of 1986, as
amended (the "Code"), and MuniAssets and High Income each will be a "party" to
a reorganization within the meaning of Section 368(b) of the Code.

     2. In accordance with Section 361(a) of the Code, High Income will not
recognize any gain or loss either on the transfer of substantially all of its
assets to MuniAssets in exchange solely for voting shares of MuniAssets or on
the distribution of the MuniAssets shares received to its shareholders.

     3. Under Section 1032 of the Code, MuniAssets will recognize no gain or
loss as a result of the Reorganization.

     4. In accordance with Section 354(a)(1) of the Code, shareholders of High
Income will not recognize gain or loss on the exchange of their shares for
shares of MuniAssets, except to the extent that a shareholder receives cash in
lieu of fractional shares of MuniAssets common stock.

     5. The basis of the assets of High Income received by MuniAssets will be
the same as the basis of such assets to High Income immediately before the
Reorganization under Section 362(b) of the Code.

     6. Under Section 358 of the Code, the basis of the MuniAssets shares
received by High Income shareholders will be the same as the basis of the
shares exchanged pursuant to the Reorganization.

     7. Under Section 1223 of the Code, the holding period of the MuniAssets
shares received in the Reorganization will include the holding period of the
High Income shares



November 19, 2001
Page 7

exchanged therefor, provided that such shares were held as a capital asset on
the date of the Reorganization.

     8. The holding period of the assets acquired by MuniAssets from High
Income will include the period during which such assets were held by High
Income under Section 1223 of the Code.

     9. The payment of cash to High Income shareholders in lieu of fractional
shares of MuniAssets will be treated as though the fractional shares were
distributed as part of the Reorganization and then redeemed by MuniAssets. The
cash payment will be treated as a distribution in full payment for the
fractional shares deemed redeemed under section 302(a), with the result that
such High Income shareholders will have short-term or long-term capital gain
or loss to the extent that the cash distribution differs from the basis
allocable to such shareholders' fractional shares.

     10. Pursuant to Section 381(a) of the Code and Section 1.381(a)-1 of the
Income Tax Regulations, MuniAssets will succeed to and take into account the
items of High Income described in Section 381(c) of the Code, subject to the
provisions and limitations specified in Sections 381, 382, 383 and 384 of the
Code and the regulations thereunder. Under Section 381(b), the tax year of
High Income will end on the date of the Reorganization.

         Our opinion represents our best legal judgment as to the proper
Federal income tax treatment of the Reorganization, based on the facts
contained in the Plan, the N-14 Registration Statement and the
Representations. Our opinion assumes the accuracy of the facts as described in
the Plan, the N-14 Registration Statement and the Representations and could be
affected if any of the facts as so described are inaccurate.

         We are furnishing this opinion letter to the addressees hereof,
solely for the benefit of such addressees in connection with the
Reorganization. This opinion letter is not to be used, circulated, quoted or
otherwise referred to for any other purpose.

                                            Very truly yours,
                                            Sidley Austin Brown & Wood LLP