In C1, you probably want something like:

=if(b1="X",c1,"")

Regards,
Fred.

"nradel" wrote in message
...
when I recieve a bill I want to enter the bill in my budget lets say in A1
then when I pay it I would like to put an X in B1 and would like the
number
in A1 to copy to C1 showing it was paid