State tax filing
Per Illinois Department of Revenue website:
With Payment:
PO BOX 19027
SPRINGFIELD IL 62794-9027
Per IRS website:
Internal Revenue Service
P.O. Box 931000
Louisville, KY 40293-1000
IRS - Where to file paper tax returns with or without a payment
[Edited 4/08/25 | 5:08pm PST]
