Illinois sales tax calculator
Illinois’s state rate is 6.25%; the typical combined rate with local taxes is about 8.86%. Add or remove sales tax from any amount below.
Pre-tax
$100.00
Sales tax
$8.86
Total
$108.86
How sales tax works in Illinois
Illinois has a 6.25% state rate, but Cook County and the City of Chicago stack additional taxes that make Chicago one of the highest-taxed major cities, around 10.25%. Qualifying groceries and drugs are taxed at a reduced 1% state rate.
Rates are approximate and current as of the 2024–2025 tax years. Local rates change and vary by address; confirm the exact figure with the Illinois department of revenue or a rate lookup by ZIP code before relying on it.
Sales tax on common amounts in Illinois (at 8.86%)
Frequently asked questions
What is the sales tax rate in Illinois?
Illinois's statewide base rate is 6.25%. With average local (city and county) taxes added, the typical combined rate is about 8.86%. Your exact rate depends on the address of the sale.
How much is sales tax on $100 in Illinois?
At the 8.86% average combined rate, sales tax on $100 is about $8.86, for a total of $108.86. At the 6.25% state rate alone it is $6.25.
Does Illinois charge local sales tax on top of the state rate?
Yes. Cities, counties or special districts in Illinois add local sales tax, which is why the average combined rate (8.86%) is higher than the 6.25% state rate.
How do I calculate sales tax backwards from a total in Illinois?
Divide the tax-included total by 1 plus the rate as a decimal. At 8.86%, a $108.86 total came from a $100.00 pre-tax price. Use the "Remove tax from a total" mode above.