Illinois · Sales Tax
The Illinois state sales tax rate is 6.25%. On a $100 purchase, the tax is $6.25, for a total of $106.25.
| Illinois Sales Tax | Rate | On $100 | On $1,000 |
|---|---|---|---|
| State base rate | 6.25% | $6.25 | $62.50 |
| Maximum combined | 11.5% | $11.50 | $115.00 |
| Pre-tax from $108.50 total | — | ÷1.0625 |
The state base sales tax rate in Illinois is 6.25%. Chicago 10.25%; Cook County unincorporated areas 10.25%. The maximum combined rate (state plus highest local) reaches 11.5%.
Multiply the pre-tax price by 0.0625 (the decimal form of 6.25%). For example, a $250 purchase has a Illinois state sales tax of $15.62, for a total of $265.62. To reverse-calculate: if you have the total and want the pre-tax price, divide the total by 1.0625.
Food and grocery tax rules vary by state. In Illinois, the standard rate of 6.25% applies, though some states exempt grocery staples. Check the Illinois Department of Revenue for specific grocery exemption rules.
The Illinois state rate of 6.25% is close to the national median of approximately 6.0%. Combined with local rates, the effective rate in Illinois ranges from 6.25% to 11.5%.