Repay online if eligible. If your overpayment letter includes online payment instructions and a Remittance ID, you can also repay online at pay.gov.Where can I get legal help with my Social Security overpayment? Write a letter to the Social Security Administration. Tell them how much you can afford to pay each month. An overpayment is when you receive more money than you should have received for one or more months. Overpayments are defined as wage and salary payments in excess of what an employee is owed. You will need forms for the various permits that are required. Keep in mind, filling out these worksheets and forms is NOT equivalent to applying for a permit.