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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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Electronic Filing Information for Tax Professionals

Certain mandates apply to Tax Professionals. Information is available on the EFT Mandate webpage. 

Income tax programming specifications are provided for software developers, transmitters, Electronic Return Originators (EROs), tax professionals, and others on the following webpages. Note: Programming is not required to use the online, free MyTax Illinois program for account management, payment, and return filing.