Dear insert name The purpose of this letter is to inform you that, insert company name (Company) has discovered a payroll error that has resulted in you being overpaid the amount of insert amount. The details of this overpayment are as follows: List the relevant dates and amounts of overpayment.
Let them know as soon as possible and immediately offer a way to resolve the overpayment, either as crediting their next invoice or issuing a credit.
Notify the employee of the fact that an overpayment has been made, providing them with an explanation as to how this has arisen, together with a breakdown, including the dates and amounts. In this way, both parties will be clear as to the reason for the overpayment and exactly what will need to be repaid in due course.