EXHIBIT 32.1

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

         In connection with the Annual Report on Form 10-K of WNC Housing Tax
Credit Fund IV, L.P., Series 1 (the  "Partnership") for the year ended March 31,
2004 as filed with the  Securities  and Exchange  Commission  on the date hereof
(the "Report"),  and pursuant to 18 U.S.C., section 1350, as adopted pursuant to
section  906 of the  Sarbanes-Oxley  Act of 2002,  I,  Wilfred N.  Cooper,  Jr.,
President and Chief Executive Officer of WNC & Associates, Inc., general partner
of the Partnership, hereby certify that:

          1.   The Report fully complies with the  requirements of section 13(a)
               or 15(d) of the Securities Exchange Act of 1934; and

          2.   The information  contained in the Report fairly presents,  in all
               material  respects,   the  financial   condition  and  result  of
               operations of the Partnership.



/s/WILFRED N. COOPER, JR.
-------------------------
Wilfred N. Cooper, Jr.
President and Chief Executive Officer of WNC & Associates, Inc.
July 14, 2004