Illinois Sales Tax Calculator
Calculate Illinois sales tax using a typical combined state and local rate, or enter the exact rate for your municipality.
Regional Rule Context
United States Rates and Rules
Tax Rates
Exemptions
- -Prescription medicines
- -Groceries at reduced 1% state rate
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Replace with your Illinois local combined rate
Result
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Illinois sales tax calculator for 2026. State base: 6.25% on general merchandise, 1% on qualifying food and drugs. Chicago combined rate: ~10.25% (state + Cook County + city + RTA). Cook County suburbs: ~9-10%. Downstate: ~6.25-8%. Illinois is one of 13 states that taxes groceries, albeit at a reduced rate. Clothing IS taxable at the full rate.
Disclaimer: This calculator uses publicly available rules effective as of Jan 1, 2025 (version 1.0). Results are for informational purposes only. Always verify with official sources or a qualified professional. Last reviewed: Mar 1, 2026.
Formula
Illinois combines state tax with local home rule, county, mass transit, and other add-ons that vary by location.
United States FAQs
What is the Illinois sales tax rate?
Illinois state base is 6.25% on general merchandise. With local additions, combined rates range from about 6.25% to 10.25%. Chicago is the highest at ~10.25% (6.25% state + 1.75% Cook County + 1.75% city + 0.5% RTA).
Is food taxed in Illinois?
Yes, but at a reduced rate. Qualifying food, drugs, and medical appliances are taxed at 1% state rate (not 6.25%) plus local additions. In Chicago, grocery tax is about 1-3% total. Prepared food and restaurant meals are taxed at the full combined rate.
Why is Chicago sales tax so high?
Chicago stacks four layers: 6.25% state, 1.75% Cook County, 1.75% city of Chicago, and 0.5% RTA transit. This makes ~10.25%, one of the highest of any US city.
Is clothing taxed in Illinois?
Yes. Clothing is fully taxable at the combined rate in Illinois. Unlike New York and Pennsylvania, Illinois has no clothing exemption.
What about the Cook County suburbs?
Suburban Cook County locations typically pay ~9-10% because they include state and county taxes but not the Chicago city tax. Collar counties (DuPage, Lake, Will, Kane) are lower at 7-8.5%.
Does Illinois have a use tax?
Yes. If you purchase taxable items from out of state (online or in person) and the seller does not collect Illinois tax, you owe use tax at the same rate as sales tax. It is self-reported on your IL income tax return.
Are there any sales tax holidays in Illinois?
Illinois does not currently have a regular annual sales tax holiday like Texas or Florida. However, the state has occasionally enacted temporary tax relief measures on groceries and school supplies through specific legislation.
How do I add this Illinois Sales Tax Calculator to my site?
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