EXHIBIT 32.2

                            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  Quarterly  Report on Form 10-Q of WNC Housing Tax
Credit  Fund IV,  L.P.,  Series 2 (the  "Partnership")  for the  quarters  ended
September 30, 2007 and June 30, 2007 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,
Thomas J.  Riha,  Senior  Vice-President  and Chief  Financial  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,  except to the extent
          that  such  provisions  require  the  audit  report  of Local  Limited
          Partnership financial statements to refer to the auditing standards of
          the Public Company  Accounting  Oversight Board for the  Partnership's
          annual financial statements and except that the Report is a cumulative
          report  covering each of the quarters ended  September 30 and June 30,
          2007; 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/Thomas J. Riha
-----------------
Thomas J. Riha
Senior Vice-President and Chief Financial Officer of WNC & Associates, Inc.
March 17, 2008