Tax Office (UDSD)
UDSD Tax Office FAQ Video
Department Overview
The Upper Darby School District Tax Office provides support to the residents of Upper Darby Township which is comprised of Upper Darby, Clifton Heights and Millbourne.
The Tax Office is a busy, fast-paced office that corresponds with residents regarding any tax question that residents may have. Please review the Upper Darby School District Tax Office webpages for answers to the most frequently asked questions: payment due dates, amounts due, installment options, homestead tax relief, change of address forms, duplicate bills, tax certifications and receipts.
For inquiries, please contact the Upper Darby School District Tax Office.
IMPORTANT NOTICE
After January 15 annually, online and telephone payment options are no longer available. All payments must be submitted by money order or certified check payable to:
Upper Darby School DistrictPO Box 13925
Philadelphia PA 19101
All payments must be mailed and postmarked no later than January 31, 2026.
Please note that no exceptions can be made to these requirements.