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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.

Business Income Tax Forms

Corporation Income and Replacement Tax - IL-1120

Exempt Organization Income and Replacement Tax - IL-990-T

Fiduciary Income and Replacement Tax - IL-1041

Partnership Replacement Tax - IL-1065

Small Business Corporation Replacement Tax - IL-1120-ST

Withholding and Unemployment Forms

Withholding Tax (Payroll) - IL-941
Illinois Department of Employment Security Forms (Unemployment)