Thanks for your reply. A few more questions:
1. Does the per diem become taxable after 11 or 12 months?
2. If I do decide to go ahead with the relocation plan, which address needs to be changed on paper? There are three addresses in question which is what is confusing me. Here's the situation: the first address is my home address on my Company's payroll record which is in PA. Naturally, state tax deducted is for PA on my pay stub. The second address is my temporary apt in WV (which is where my project is). It is to this WV address where my pay stubs get sent. The third address in question is the address of my work location. (Is this something that my company needs to provide to IRS?).
Logically, I think it is the third address that needs to be changed in order to maintain the tax free per diem. Technically, can this address can be changed only on paper (for a duration even longer than one month) but I can physically still work from my current location. What are your thoughts?
3. How far does the new location needs to be? 50 miles?