You should also check out these blog posts on Military State Rules and the Military Spouses Residency Relief Act.
Military Submariners serving on two crew ballistic missile or guided missile boats are eligible to deduct lodging and other expenses when their "Tax Home" (the sub) is unavailable. Sometimes this is called the FBM Deduction. There are many discussions of what exactly is deductible, but this worksheet will work in most situations and make it easy to determine what amounts to enter on various forms or enter into tax prep software. If you find this worksheet useful, and it saves you money on taxes, consider making a donation.
I will not be able to do the instructions for individual software programs this year. It simply required too much time and effort, for not a lot of return. I have had to allocate more of my time to the book. The 2014 instructions will probably work okay:
*You deduct mortgage interest, taxes and mortgage insurance premiums directly on Schedule A