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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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Tax Practitioners - Tax Form Preparers, Tax Attorneys, and other Tax Professionals can find information here to assist them with their clients.

Electronic Transmitters/Software Developers - Software developers and transmitters can find information here about our technical specifications, enrollment, and testing requirements.

Substitute Forms Developers - If you produce, or intend to produce, your own version of the official tax forms, you can find information here about our technical specifications, enrollment, and testing requirements.

Additional Information for Tax Professionals

Qualified Practitioners and Certified Audits under the Local Government Revenue Recapture Act