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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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What is an Illinois withholding exemption?

An Illinois withholding exemption is the portion of your payments on which you do not withhold Illinois Income Tax. This amount is calculated based on the number of allowances claimed on  Form IL-W-4, Employee’s and other Payee's Illinois Withholding Allowance Certificate and Instructions.

See Booklet IL-700-T, Illinois Withholding Income Tax Tables, for the exact amount of tax to withhold based upon the amount of allowances claimed.

You may access additional information by searching the entire Illinois Department of Revenue website.

If you have additional inquiries, you may submit them on the Questions, Comments, or Requests form.