Wait a minute. Just to clarify, this is NOT a "home office only" expense. It's a "whole house" expense. So make sure you enter the amount in the box that asks for whole house expenses so that only the percentage that applies to your home office is deducted. Note that if you did not replace any of the windows in the home office, then you can not expense this at all.
I still question this as a valid expense, when it is "in fact" a property improvement, and it exceeds $2,500 and therefore does not qualify for safe harbor.
