Illinois Sales Tax Calculator (2026)

Find up-to-date Illinois sales tax rates for 2026. The state rate is 6.25%, local add-ons up to 4.00%, with an average combined rate around 8.75%. Includes exemptions and breakdowns for major cities.

Illinois applies a statewide sales tax rate of 6.25%. Local governments may add additional taxes, bringing combined rates up to 10.25% in major cities like Chicago.

Illinois Sales Tax Calculator

Enter a purchase amount — this calculator uses the average combined rate for Illinois.

Rate
8.75%
Tax
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Total
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The average combined rate in Illinois is 8.75%. Local city rates may vary by ZIP code.

Overview of Illinois Sales Tax

Illinois’s sales tax applies to most goods and some services at a 6.25% state rate. Counties, municipalities, and transit authorities can add local sales taxes for public funding needs.

Comparison With Neighboring States

Indiana averages 7%, Wisconsin 5.5%, and Missouri around 8.3%. Illinois’s combined rates are higher, especially in urban centers.

Business Tax Information

All retailers must register with the Illinois Department of Revenue to collect and remit sales tax. Monthly or quarterly returns are required depending on sales volume.

FAQs for Illinois

What is Illinois’s state sales tax rate?

6.25% statewide.

Can local governments add taxes?

Yes, cities and counties can add their own sales taxes.

What’s the highest total rate in Illinois?

Up to 10.25% in Chicago.

Are groceries taxed?

Groceries are taxed at a reduced rate of 1%.