Use this form to request ("petition") a refund on any City of Philadelphia tax, except if you're an individual seeking a refund for Wage Tax overpayment. Wage Tax refund requests must be submitted through the Philadelphia Tax Center.You don't need a username and password to submit a refund request. A taxpayer that elects to challenge the offset may file a petition for refund with the department in accordance with the Tax Reform Code (72 P.S. § 10003.1). Cashing an erroneous refund check may result in interest due to the IRS. Serving a penalty week and recouping an overpayment cannot be done in the same week. In this article, we'll show you how to write a refund request letter template that not only grabs attention but also persuades companies to act in your favor. If we have identified an overpayment and request a refund, please mail the check along with a copy of the overpayment request letter we sent you. When it is necessary to expedite a refund, employees can use Form 5792 to provide the customer a refund within 7 to 10 days.