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State Tax Evasion in Illinois

How Illinois law treats state tax evasion: what is illegal, whether it is a misdemeanor or felony, and the penalties, from the state code.

Short answer: Under the Illinois Income Tax Act, willfully failing to file a return, filing a fraudulent return, or willfully trying to evade income tax or its payment (and a preparer knowingly entering false information) is a Class 4 felony (1 to 3 years) for a first offense and a Class 3 felony (2… 35 ILCS 5/1301, 5/1302; 35 ILCS 120/13; 730 ILCS 5/5-4.5-25 to -65

State tax evasionUnder the Illinois Income Tax Act, willfully failing to file a return, filing a fraudulent return, or willfully trying to evade income tax or its payment (and a preparer knowingly entering false information) is a Class 4 felony (1 to 3 years) for a first offense and a Class 3 felony (2 to 5 years) for each later offense. Willfully breaking Department rules or failing to keep required records is a Class A misdemeanor, as is an agent willfully failing to pay over a taxpayer's money to the Department. Prosecution must start within 5 years. Under the Retailers' Occupation (sales) Tax Act, a retailer who fails to file or files a fraudulent return commits a Class 4 felony when the amount due is under $300 and a Class 3 felony when it is $300 or more. These are in addition to civil penalties.
Failure to pay over: https://www.ilga.gov/Documents/legislation/ilcs/documents/003500050K1302.htm ; sales tax: https://www.ilga.gov/Documents/legislation/ilcs/documents/003501200K13.htm . Class 1 felony 4 to 15 years; Class 2 felony 3 to 7 years; Class 3 felony 2 to 5 years; Class 4 felony 1 to 3 years; felony fines up to $25,000; Class A misdemeanor less than 1 year and up to $2,500; Class B misdemeanor up to 6 months and $1,500; Class C misdemeanor up to 30 days and $1,500. Read on ilga.gov in the browser 2026-10-27.

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FAQ

What are the penalties for tax evasion in Illinois?
Under the Illinois Income Tax Act, willfully failing to file a return, filing a fraudulent return, or willfully trying to evade income tax or its payment (and a preparer knowingly entering false information) is a Class 4 felony (1 to 3 years) for a first offense and a Class 3 felony (2 to 5 years) for each later offense. Willfully breaking Department rules or failing to keep required records is a Class A misdemeanor, as is an agent willfully failing to pay over a taxpayer's money to the Department. Prosecution must start within 5 years. Under the Retailers' Occupation (sales) Tax Act, a retailer who fails to file or files a fraudulent return commits a Class 4 felony when the amount due is under $300 and a Class 3 felony when it is $300 or more. These are in addition to civil penalties.
Can I get a court-appointed lawyer for state tax evasion in Illinois?
Illinois's rule on court-appointed lawyers: Under Illinois Supreme Court Rule 401(a), an indigent defendant has the right to appointed counsel whenever the charge is punishable by imprisonment. The trial judge appoints the county Office of the Public Defender, which assigns the individual assistant public defender. Whether a person is indigent is left to the trial court's discretion based on as complete a financial picture as possible; a person need not be entirely without funds to be found indigent, and a court may not refuse appointment solely because the defendant posted bail. The Office of the State Appellate Defender handles appeals for indigent defendants. Ill. S. Ct. R. 401(a); People v. Campbell, 224 Ill. 2d 80 (2007); Burnette v. Terrell, 232 Ill. 2d 522 (2009); People v. Ellis, 309 Ill. App. 3d 443 (1999); People ex rel. Baker v. Power, 60 Ill. 2d 151 (1975)
How much does a lawyer for state tax evasion cost in Illinois?
Lawyers set their own fees, and Illinois has rules on how they may charge. See hiring a criminal defense lawyer in Illinois for fee rules, how to check a lawyer's license and free help.
What happens after an arrest for state tax evasion in Illinois?
How release before trial works in Illinois: Illinois abolished cash (monetary) bail under the Pretrial Fairness Act (part of the SAFE-T Act); cash bail ended in Illinois courts on September 18, 2023, after the Illinois Supreme Court upheld the law in Rowe v. Raoul, 2023 IL 129248. The default is pretrial release on personal recognizance, with conditions. The State may seek detention only in specified cases by filing a petition; at the first detention hearing the State must prove by clear and convincing evidence that the proof is evident or the presumption great that the defendant committed a detainable offense, that the defendant poses a real and present threat to any person or the community or a high likelihood of willful flight, and that no conditions could mitigate that threat or risk. The court must revisit continued detention at later hearings. 725 ILCS 5/110-6.1 (P.A. 101-652, 102-1104); Rowe v. Raoul, 2023 IL 129248 What happens after an arrest.
Can a conviction for state tax evasion be removed from my record in Illinois?
Each state sets its own rules for sealing or expunging records. See Illinois expungement and record sealing rules.

General legal information, not legal advice. Laws change and local rules can differ; check the linked official source or talk to a lawyer about your situation.