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Scam Alert: Fake Texts and Websites Impersonating IDOR

Be alert for fraudulent messages or websites attempting to steal your banking information, login credentials, or credit card details. The Illinois Department of Revenue (IDOR) will never request personal or financial information via text message. To confirm official communications or contact details, always visit https://tax.illinois.gov.

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How do I make changes to my individual income tax return?

If you discover that you made an error on your return after it was filed or if your federal return was adjusted by the Internal Revenue Service (IRS), you should file an amended Illinois return using Form IL-1040-X, Amended Individual Income Tax Return. If you are filing Form IL-1040-X due to a federal change, do not file it until you receive notification from the IRS showing it was accepted. For more information, refer to the  Form IL-1040-X Instructions.

You may access additional information by searching the entire Illinois Department of Revenue website.

If you have additional inquiries, you may submit them on the Questions, Comments, or Requests form.