Hoosier Daddy,
No, they do not...I asked that the other day. What most people do is to have it spread out (past returns) back to the date of your disability. So, in my case that is 4 years (from 2005 to present). Having said that you will also have to let SSA know how much you want withheld from your monthly check; 7, 10, 15 or 25%. They will send you the form or you can retrieve the form from the SSA website. I don't know of course, your financial situation but I would definitely talk with a tax preparer/CPA.
Abasaki,
OPM is Office of Personnel Management. WEP is Windfall Elimination Provision and applies to the folks who were under CSRS Offset. This is all in regards to federal employees...a whole different ballgame and language altogether.