Returning a sign-on bonus
Hi, I received a sign-on bonus of $15,000 in 2005 that was reported as income on my W-2. (actual amount received was $10,102.50 after taxes). I have recently left that job and need to return the sign-on bonus. My company wants me to return the $10,102.50 + $3,750 for federal taxes since my bonus was reported as income in 2005 and it is now 2006. Does it make sense that I have to return the federal taxes? And will it affect my income taxes which I have already filed and received a refund?
They also say I can possibly get the money back through a tax doctrine called a "claim of right". I would really appreciate any help or clarification. Thank you in advance.