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Possible online services disruption due to Internet related outage

A worldwide technology outage is causing disruption to some State of Illinois online systems.  We are aware of this issue and are diligently working on restoration.

Report Tax Fraud

The Illinois Department of Employment Security administers unemployment claims and unemployment insurance taxes. For reporting fraud related to unemployment, visit the Illinois Department of Employment Security webpage "Reporting Unemployment Insurance Fraud".

Thank you for your interest in reporting tax crimes within the State of Illinois. Tax fraud or misuse of licenses affects us all by providing an unfair business advantage to tax cheaters. See Descriptions

There are 3 different ways you may report this crime:

  1. Click the link to fill out a Fraud Referral Form online.
  2. Send your complaint in writing to: Bureau of Criminal Investigations
    Illinois Department of Revenue
    PO Box 19014
    Springfield Il 62794-9014 
  3. Call 1 800 CHEAT 11 (1 800 243-2811). Note: If our agents are unavailable when you call, you may leave a message. If you leave a message and require a response, please leave your contact information including a phone number where we can reach you.

Please Note: Complaints regarding improper claiming of dependents, fraudulent activity by non-Illinois residents or other issues related to the federal income tax return should be reported to the Internal Revenue Service (IRS) at 1 800 829-1040 or

For Child Support call 1 800 447-4278.