Illinois Sales Tax Calculator

Illinois Sales Tax Overview

Illinois has a 6.25% state sales tax rate with local additions making the average combined rate 8.83%. Chicago's 10.25% rate is one of the highest in the nation, significantly impacting major purchases. The reduced 1% rate on groceries provides some relief. This calculator computes the correct tax for your Illinois purchase.

Illinois Sales Tax Rates

Verified as of 2026-04. Always check your local jurisdiction for the exact rate.

Items Exempt from Illinois Sales Tax

• Prescription medications
• Medical appliances
• Most grocery food (taxed at 1%)
• Farm equipment and supplies

How to Calculate Illinois Sales Tax

1. Enter your purchase amount in the calculator above.
2. State tax is calculated as: Amount × 6.25% = State Tax
3. Local tax is calculated as: Amount × 2.58% = Local Tax
4. Total = Purchase Amount + State Tax + Local Tax

Illinois Sales Tax Tips

• Illinois has one of the most complex sales tax structures in the US. The state rate is 6.25%, but with local additions the combined rate in Chicago reaches 10.25%. Cook County alone adds 1.75%, plus the city adds another 1.25%, plus the RTA adds 1%.
• Illinois taxes groceries at a reduced rate of 1% (state) vs the full 6.25% for general merchandise. This reduced rate applies to food for human consumption that isn't prepared for immediate eating. Candy and soft drinks are taxed at the full rate.
• Illinois charges different state rates based on product type: general merchandise at 6.25%, qualifying food and drugs at 1%, and vehicle purchases at 6.25% plus local taxes. Always check which rate category your purchase falls into.

Other State Tax Calculators

• Texas Sales Tax Calculator
• California Sales Tax Calculator
• Florida Sales Tax Calculator
• New York Sales Tax Calculator

For official tax rate information, see USA.gov — State Tax Information.

Frequently Asked Questions