You will need your remittance ID in order to repay your Social Security overpayment on Pay.gov. The Notice of Overpayment will tell you how much you were overpaid.It will tell you to send the money back in 30 days. Form SSA632, Request for Waiver of Overpayment Recovery, can be used to seek a waiver. If you have an overpayment debt, you may be eligible to make a full or partial payment using Pay. Gov or your bank's online bill pay option.