Where to mail state tax return illinois

In Illinois, you can mail your state tax return to the following address:

Illinois Department of Revenue PO Box 19032 Springfield, IL 62794-9032

Make sure to use the correct mailing address for your specific situation:

• If you're filing a paper return, use the above PO box address.
• If you're filing an amended return (Form IL-1040X), use the following address:
  • PO Box 19032, Springfield, IL 62794-9032 (for returns with no payment)
  • PO Box 19032, Springfield, IL 62794-9032 (for returns with payment)
• If you're filing a payment only (no return), use the following address:
  • PO Box 19032, Springfield, IL 62794-9032 (for payments by check or money order)
  • Illinois Department of Revenue, Electronic Payment Processing, PO Box 19032, Springfield, IL 62794-9032 (for electronic payments)

Remember to include your name, address, and Social Security number or Individual Taxpayer Identification Number (ITIN) on the envelope.

It's also a good idea to keep a copy of your return and any supporting documents for your records.