Try one of these:

=IF(AND(U2=DATE(2009,2,20),W20),W2+15,W2)

=W2+(U2=DATE(2009,2,19))*(W20)*15

Or, use a cell to hold the date criteria:

A1 = 2/20/2009

=IF(AND(U2=A1,W20),W2+15,W2)

=W2+(U2=A1)*(W20)*15

--
Biff
Microsoft Excel MVP


"Betty K" wrote in message
...
If the calculated amount in W is greater than 0 and the date in U is later
than 2/19/09, then 15 needs to be added to W. I tried the following
formula,
but even if the date is after 2/20/09, it still adds the 15.

=SUM(AND(W20,U2="2/20/09"),(W2+15))

What am I doing wrong? Thanks for your help!