UNITED STATES
              SECURITIES AND EXCHANGE COMMISSION

                    Washington, D.C. 20549


                           FORM 8-K


                        CURRENT REPORT

              PURSUANT TO SECTION 13 OR 15(d) OF
            THE SECURITIES AND EXCHANGE ACT OF 1934


Date of Report (Date of Earliest Event Reported)  December 30,2003


       AEI INCOME & GROWTH FUND XXI LIMITED PARTNERSHIP
    (Exact Name of Registrant as Specified in its Charter)

                      State of Minnesota
(State or other Jurisdiction of Incorporation or Organization)




           0-29274                      41-1789725
   (Commission File Number)          (I.R.S. Employer
                                   Identification No.)


  30 East 7th Street, Suite 1300, St. Paul, Minnesota  55101
           (Address of Principal Executive Offices)


                         (651) 227-7333
     (Registrant's telephone number, including area code)


 (Former name or former address, if changed since last report)


Item 2.   Acquisition or Disposition of Assets.

       On December 30, 2003, the Partnership purchased a Johnny
Carino's  restaurant in Laredo, Texas from GE Capital Franchise
Finance Corporation.  The total cash purchase price of the land
and   building  was  approximately  $2,537,000.    GE   Capital
Franchise  Finance  Corporation  is  not  affiliated  with  the
Partnership.

       The cash, used in purchasing the property, was from  the
proceeds of sale of properties.

Item 7. Financial Statements and Exhibits.

        (a)  Financial statements of businesses acquired - Not
             Applicable.

        (b)  On  December  30, 2003, the Partnership  purchased
             the  property  for $2,537,000.  The  property  was
             acquired   with  cash  which  was  provided   from
             proceeds of sale of properties.  A limited  number
             of    proforma   adjustments   are   required   to
             illustrate the effects of the transaction  on  the
             balance   sheet   and   income   statement.    The
             following  narrative description is  furnished  in
             lieu of the proforma statements:

             Assuming   the   Partnership  had   acquired   the
             property  on  January 1, 2002,  the  Partnership's
             Investments  in  Real Estate would have  increased
             by  $2,537,000 and its Current Assets (cash) would
             have decreased by $2,537,000.

             The  Rental Income for the Partnership would  have
             increased  from $1,591,244 to $1,806,890  for  the
             year  ended  December 31, 2002 and from $1,078,111
             to  $1,239,846 for the nine months ended September
             30,   2003  if  the  Partnership  had  owned   the
             property during the periods.

             Depreciation  Expense  would  have  increased   by
             $56,261  and  $42,196 for the year ended  December
             31,  2002 and the nine months ended September  30,
             2003, respectively.

             The  net  effect  of  these  proforma  adjustments
             would  have  caused Net Income  to  increase  from
             $2,469,538  to  $2,628,923 and from $1,768,415  to
             $1,887,954,  which  would  have  resulted  in  Net
             Income   of   $112.28  and  $81.18   per   Limited
             Partnership  Unit outstanding for the  year  ended
             December  31,  2002  and  the  nine  months  ended
             September 30, 2003, respectively.

         (c) Exhibits

               Exhibit 10.1 - Assignment of Agreement  of  Sale
                              and First Amendment to  Agreement
                              of Sale dated  December  23, 2003
                              between the  Partnership and  AEI
                              Fund Management, Inc. relating to
                              the  Property  at  7603 San Dario
                              Avenue, Laredo, Texas.

               Exhibit 10.2 - Net Lease Agreement dated December
                              30, 2003  between the  Partnership
                              and Kona  Restaurant  Group,  Inc.
                              relating to the Property  at  7603
                              San  Dario Avenue, Laredo, Texas.


                          SIGNATURES

      Pursuant  to the requirements of the Securities  Exchange
Act  of 1934, the registrant has duly caused this report to  be
signed   on  its  behalf  by  the  undersigned  hereunto   duly
authorized.

                              AEI INCOME & GROWTH FUND XXI
                              LIMITED PARTNERSHIP

                              By: AEI Fund Management XXI, Inc.
                                 Its:  Managing General Partner


Date:  January 2, 2004          /s/ Patrick W Keene
                              By:   Patrick W. Keene
                                 Its:  Chief Financial Officer