I finally just entered Operation Enduring Freedom, even though the client wasn't specifically part of that operation. I attached a PDF note explaining that our software would not file the return without an entry even though this did not accurately describe his duties. Two weeks later client gets a notice asking him to complete form 15109 Request for Tax Deferment. They want to know when he entered combat zone and provide a copy of his military orders. The nontaxable pay is already on his freaking W-2. Why can't the IRS accept their own W-2? Needless to say this has not been resolved yet.