Delaware requires taxpayers to mail their individual income tax returns to specific addresses depending on the type of return and whether a payment, refund, or no payment is due. The mailing addresses vary for resident, non-resident, amended, extension, and estimated tax returns.
Mailing Address for Residents, Non-Residents and Amended Returns (Zero Due or No Payment Due)
Zero Due or No Payment Due: Mail to: Delaware Division of Revenue
P.O. Box 8711
Wilmington, DE 19899-8711
Payments Due (Net Balance Due)
Delaware Division of Revenue
P.O. Box 508
Wilmington, DE 19899-0508
Refunds Due (Net Refund)
Delaware Division of Revenue
P.O. Box 8710
Wilmington, DE 19899-8710
Extension Request (PIT-EXT and Estimated Tax Payments (PIT-EST)
State of Delaware, Division of Revenue
P.O. Box 830
Wilmington, DE 19899-0830
Source:
Disclaimer: Always verify mailing addresses and filing requirements with the official Delaware Division of Revenue forms and instructions for the current tax year. Tax rules and addresses may change annually.