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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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2018 Withholding (Payroll) Tax Forms

Click here to file your IL-941 return or pay your IL-501 in MyTax Illinois

Name Description
IL-501   Payment Coupon and Instructions
IL-941 Instructions Illinois Withholding Income Tax Return
IL-941-X Instructions Amended Illinois Withholding Income Tax Return
Schedule P CSV Instructions Illinois Withholding Payroll Schedule
IL-700-T   Illinois Withholding Tax Tables