Illinois Sales Tax Calculator
Calculate Illinois sales tax — 6.25% state rate plus local taxes. Chicago reaches 10.25%.
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How to use this calculator
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Illinois state sales tax is 6.25%. Chicago adds 1.75% city + 1.25% Cook County + 1% RTA for a total of 10.25% — among the highest in the US. Groceries are taxed at a reduced 1% (not exempt). Prescription drugs are exempt.
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Select your county/city for the combined state + local rate.
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Groceries and prescription drugs are generally exempt.
Frequently asked questions
What is Chicago's sales tax rate?
Chicago's combined sales tax is 10.25%: 6.25% state + 1.75% city + 1.25% Cook County + 1% RTA transit. Illinois taxes groceries at 1% rather than fully exempting them — one of few states taking this approach. Prescription drugs are fully exempt.
What is exempt from IL sales tax?
Prescription drugs and most grocery food items are generally exempt from IL sales tax.
Illinois Sales Tax Calculator 2024
How to use the illinois sales tax
Use this illinois sales tax to calculate how much sales tax you owe on any purchase in Illinois. Illinois charges a statewide base rate of 4% — local cities and counties add their own levies on top, so the rate you pay depends on where you shop. Common combined rates include Chicago — 10.25% (10.25%), Aurora — 8.25% (8.25%), Rockford — 8.25% (8.25%).
Illinois sales tax by city
Enter your purchase amount and select your city or area. The tool instantly shows the tax amount, pre-tax price, and total. Select 'Remove tax from total' on a receipt to extract how much was tax. Prescription drugs are typically exempt in most states; grocery exemptions vary by state.
When Illinois sales tax applies
Sales tax in Illinois affects everyday shopping, big-ticket purchases, and e-commerce orders. Online sellers shipping to Illinois must collect sales tax (since the South Dakota v. Wayfair ruling). Local rates can change — check the Illinois Department of Revenue for the latest rates. This illinois sales tax uses 2026 rates.
IL sales tax overview
Illinois state sales tax is 6.25%. Chicago adds 1.75% city + 1.25% Cook County + 1% RTA for a total of 10.25% — among the highest in the US. Groceries are taxed at a reduced 1% (not exempt). Prescription drugs are exempt.
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Results are estimates for informational purposes only and do not constitute professional financial, medical, legal, or technical advice. Read full disclaimer →