Best practice in my opinion is to void the overpaid paycheck and reissue corrected amount in your payroll system. Is given in a manner reasonably calculated to give actual notice to the employee or successor.Your employer must notify you in writing of the overages and cannot request payment back for overpaid wages more than once in a 90day period. My employer is trying to make me sign an agreement that I'll pay them back a 1500 overpayment. I dont agreed that I owe. I last worker for the company 5 months ago. Highlighted in yellow on their website, the agency notes that overpayments cannot be forgiven and there is "no exception" for hardship. OWCP's Division of Coal Mine Workers' Compensation has made a variety of forms available online. These forms are only available in PDF format.