Overpayments. To receive important letters about overpayment recovery waivers, please ensure your mailing address is updated in your IDES account. If an overpayment is not discovered and one or more paydays have passed, the employer and employee shall agree on a repayment schedule.A) When the employee agrees that an overpayment has been made, the entire sum of the overpayment may be deducted on the employee's first regular payday. Include all written documentation to support or defend that an overpayment occurred. Begin an Overpayment Adjustment request. ; Enter the UIN of the overpaid employee in the ID (UIN) field. The salary overpayment resulted because .