Enter 'Social Security' in the search box. Click on "Continue" under the Repay Your Social Security Overpayment Online section.Repay your Social Security Overpayment Online. To ask for a lower monthly repayment amount, use SSA Form 634, the Request for Change in Overpayment Recovery Rate. For information on personal property taxes, contact your County Assessor's Office. File your Property Tax Credit (PTC) Claim online.