Displaying data based off a date value

[Evan0211]

I am looking to limit my data where PERF_END_DATE >= now and <= a year from now but I think I have a syntax error.

Here is the expression:

=if([PERF_END_DATE]= {">=$(=timestamp(now()))<=$(=timestamp(now() + 365))"},[PERF_END_DATE])

I am getting a ')' expected error.  Any help would be greatly appreciated.