Illinois has a state-level sales tax rate of 6.25%
The total rate you that should collect depends on your exact location — counties, cities, and special districts can stack additional taxes,
pushing combined rates as high as 12.000%. See the breakdown below.
The state sales tax rate in Illinois is 6.250%, with combined rates ranging from 6.250% to 12.000% including local taxes.
Taxwire provides rooftop-level tax rate coverage for approximately 1,294 cities and localities in Illinois. Our database is updated regularly to reflect the latest rate changes at state, county, city, and special district levels.
| City | Min combined rate |
|---|---|
| Chicago | 10.250% |
| Aurora | 8.250% |
| Naperville | 7.750% |
| Joliet | 8.750% |
| Rockford | 8.750% |
| Elgin | 8.500% |
| Springfield | 9.750% |
| Peoria | 9.000% |
| Champaign | 9.250% |
| Waukegan | 8.500% |
Showing the 10 most populous cities in Illinois.
Illinois allows local governments to levy additional sales taxes on top of the state rate. This means the total sales tax you collect or pay depends on the specific address of the transaction — not just the city or ZIP code. Two businesses on opposite sides of the same street can have different tax obligations if they fall in different jurisdictions.
This is why accurate, address-level tax calculation matters. A single ZIP code in Illinois can contain multiple tax rates.
Staying compliant with Illinois sales tax can be complex — rates change, rules vary by product, and you need to track nexus across multiple jurisdictions. Taxwire automates sales tax calculation, filing, and remittance so you never miss a deadline.