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.
There are 3 different ways you may report this crime:
- Click the link to fill out a
Fraud Referral Form online.
- Send your complaint in writing to:
Criminal Investigation Division
Illinois Department of Revenue
PO Box 19014
Springfield Il 62794-9014
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.