I repayed some part of bonus to my employer as I left the job before 1 year. I am planning to apply for the tax credit for that. The employer didn't provided me the W-2C form and hence I am thinking to calculate the credit based on my calculations as mentioned here. I understand while filing the tax return, I don't need to have proof of payment right.
But in case, IRS audit this and ask for proof, is proof as wire transfer/ACH transfer to employer and some amount deducted from my last paycheck is good enough to prove that or should I request any other document from employer?
