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.You will need your remittance ID in order to repay your Social Security overpayment on Pay.gov. Fill out and file Form SSA-632-BK with Social Security. Fill out just the first part on the form and explain why the overpayment was not your fault. â–» If the amount of the overpayment was more than. People can appeal an overpayment if they disagree with the overpayment debt decision or the overpayment amount.