Rates as of September 2026
Illinois Sales Tax Calculator
Illinois’s state sales tax rate is 6.25%. Local taxes add 0%–6%, for combined rates of 6.25%–12.25%.
Results
Enter an Illinois ZIP code to see its combined state, county, city and district rate.
Calculate tax on a sale
Look up a rate, then enter an amount to see the tax and total.
This is an estimate based on location alone. The tax you owe also depends on what you sell, who you sell to and the exact delivery address. If you intend to rely on these rates, use the Kintsugi platform (opens in a new tab).
How the Illinois calculator works
Enter a ZIP code and the calculator adds up the state, county, city and district rates for it, multiplies your amount by the total and rounds the tax to the nearest cent. For the formula and worked examples, see how to calculate sales tax. Rates are as of September 2026.
See Illinois rates for major cities, or read the Illinois sales tax guide for what’s taxable, when you have to register and how to file. For other states, use the US sales tax calculator, and to split a tax-inclusive total, the reverse sales tax calculator.
Illinois sales tax rates at a glance
- ZIP codes in the rate data: 1,566
- Lowest combined rate: 6.25%, in Clare (Dekalb County)
- Highest combined rate: 12.25%, in Calumet City (Cook County)
- Most common combined rate: 7.25%, in 16% of ZIP codes
- Counties with their own sales tax: 83
Sales tax rates in major Illinois cities
The 10 cities with the most ZIP codes in the rate data, with the parts that make up each combined rate. Where a city’s ZIP codes differ, the combined column shows the range and the parts are for its most common rate.
| City | Combined | State | County | City tax | District |
|---|---|---|---|---|---|
| Chicago (Cook County) | 10.5%–11% | 6.25% | 1.75% | 1.25% | 1.25% |
| Springfield (Sangamon County) | 7.75%–11.25% | 6.25% | 1.5% | 2.5% | 0% |
| Peoria (Peoria County) | 9%–10% | 6.25% | 1% | 1.75% | 0% |
| Rockford (Winnebago County) | 8.75%–9.75% | 6.25% | 1.5% | 1% | 0% |
| Aurora (Dupage County) | 8.5%–9% | 6.25% | 0% | 1.25% | 1% |
| Bloomington (McLean County) | 9.75% | 6.25% | 1% | 2.5% | 0% |
| Carol Stream (Dupage County) | 8.25%–9% | 6.25% | 0% | 1% | 1% |
| East Saint Louis (St. Clair County) | 8.35%–9.85% | 6.25% | 0% | 1.5% | 1.1% |
| Palatine (Cook County) | 9.25%–10.5% | 6.25% | 1.75% | 1% | 1.25% |
| Schaumburg (Cook County) | 10.25%–10.75% | 6.25% | 1.75% | 1% | 1.25% |
Local guides: Chicago sales tax.
When you have to collect Illinois sales tax
A remote seller has to register and collect Illinois sales tax once its sales into the state meet the economic nexus threshold: $100,000 in sales in the previous four calendar quarters, per the state tax agency. A physical presence such as an office, employees or inventory creates nexus on its own. The Illinois sales tax guide covers registration and filing once you do.
Frequently Asked Questions
