Personal tax assistance 302-577-8200
Address to:
State of Delaware, Division of Revenue
Resident/PY/Non-resident Returns Refund
P.O. Box 8710
Wilmington DE 19899-8710
Resident/PY/Non-resident Returns Balance Due
P.O. Box 508
Wilmington DE 19899 – 508
Resident/PY/Non-resident Returns Zero
P.O. Box 8711
Wilmington DE 19899-8711