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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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ST-1-X Amended Sales and Use Tax and E911 Surcharge Return For Reporting Periods January 2024 and After

Did you know you may be able to file this form online?

Filing online is quick and easy!

Click here to go to MyTax Illinois to file your return online

Click here to download the pdf form