Illinois Sales Tax Calculator
Calculate Illinois sales tax with the current 6.25% state rate and average local rate — add tax to a price or remove it from a total.
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How to use this calculator
- 1
Enter the amount.
- 2
Use the state average local rate, no local tax, or enter your own city or county rate.
- 3
Choose whether to add tax to a price or remove it from a total.
- 4
Read the Illinois sales tax, pre-tax price and total.
Frequently asked questions
What is the sales tax rate in Illinois?
The Illinois state rate is 6.25%. With the average local rate of 2.73%, the average combined rate is 8.98%. Your exact rate depends on your city and county.
Where does Illinois rank for sales tax?
Illinois ranks number 8 of 51 (50 states and DC) for average combined sales tax, from highest to lowest. The median is 7%, so Illinois is 1.98 percentage points above it.
Which states have a combined rate close to Illinois's?
By the table's average combined rates, the nearest are California at 9.03% and Oklahoma at 9.06%, compared with 8.98% for Illinois.
How much does the local rate change the tax in Illinois?
On $1,000, no local tax gives $62.50 and the 2.73% average local rate gives $89.80. A local rate 1% above the average would give $99.80.
How do I remove sales tax from a Illinois receipt?
Divide the total by 1.08980, which is 1 plus the 8.98% combined rate. A $250.00 total becomes $229.40 before tax, with $20.60 of tax included. The "Remove tax from a total" option does it for you.
How is the tax rounded?
At 8.98%, $19.99 carries $1.80 of tax, which shows as $21.79 in total once rounded to the cent. A Illinois register may round per line item or per receipt, so a store total can differ by a cent or two.
How do I find the exact local rate?
Check the Illinois Department of Revenue rate lookup for your address, then enter it using the "Enter my own local rate" option.
Is food or clothing taxed in Illinois?
Illinois has a 6.25% state rate and local governments add more. The state's 1% tax on groceries was repealed on January 1, 2026, but municipalities and counties can impose their own 1% grocery tax, so the rate on groceries now depends on where you shop. Prescription drugs are taxed at a reduced rate.
Illinois sales tax — 6.25% state rate
Illinois sales tax rate stack
Local tax is a large piece of the Illinois picture: the average local rate of 2.73% is about 30% of the 8.98% average combined rate, on top of a 6.25% state rate. On the average combined rate Illinois ranks number 8 of 51 (50 states and DC). That is 1.98 percentage points above the median combined rate of 7% (Indiana). The two states closest to it by combined rate are Oklahoma (9.06%) and California (9.03%). Rates as of July 1, 2026 (local averages as of January 1, 2026), from the Tax Foundation. Local rates vary by city and county, so the average is an estimate — use the custom option for your exact local rate. The Illinois Department of Revenue governs what applies to a specific sale.
| State | State rate | Average local | Combined | Rank of 51 |
|---|---|---|---|---|
| Oklahoma | 4.5% | 4.56% | 9.06% | 6 |
| California | 7.25% | 1.78% | 9.03% | 7 |
| Illinois | 6.25% | 2.73% | 8.98% | 8 |
Worked Illinois sales tax examples
Backing tax out of a receipt means dividing the total by 1.08980 (1 plus the 8.98% rate), not subtracting 8.98% of it. A $500.00 Illinois total therefore holds $41.20 of tax on a $458.80 price. Going the other way, $100 becomes $108.98, and every $1,000 of pre-tax price adds about $89.80.
| Purchase | State tax only | Tax at combined rate | Total at combined rate |
|---|---|---|---|
| $20 | $1.25 | $1.80 | $21.80 |
| $100 | $6.25 | $8.98 | $108.98 |
| $500 | $31.25 | $44.90 | $544.90 |
| $2,500 | $156.25 | $224.50 | $2,724.50 |
Removing tax from Illinois receipts
Receipt totals that include tax convert back to the pre-tax price at the same 8.98% combined rate.
| Receipt total | Price before tax | Tax included |
|---|---|---|
| $108.25 | $99.33 | $8.92 |
| $500.00 | $458.80 | $41.20 |
| $1,250.00 | $1,147.00 | $103.00 |
Local rates and the $2,500 purchase in Illinois
Choosing no local tax puts the tax on $1,000 at $62.50. The state average adds $27.30 for $89.80, and a custom local rate 1% above the average adds another $10.00. Each extra percentage point of local rate is worth $10.00 per $1,000 in Illinois. A $2,500 purchase shows how much the 2.73% local layer matters in Illinois. The state rate alone gives $156.25, but the average combined rate gives $224.50, so $68.25 of the bill comes from local tax. At the nearest peers' combined rates the tax would be Oklahoma $226.50 and California $225.75.
| Local option | Combined rate | Sales tax | Total |
|---|---|---|---|
| No local tax | 6.25% | $62.50 | $1,062.50 |
| State average local (2.73%) | 8.98% | $89.80 | $1,089.80 |
| Average plus 1% (3.73% local) | 9.98% | $99.80 | $1,099.80 |
What this Illinois calculator does and does not do
This calculator uses the 2.73% average local rate for Illinois unless you choose no local tax or type your own, so treat results as estimates for an unknown address. Every Illinois amount is rounded to the cent and one 8.98% rate covers the whole amount, so a basket mixing taxable and exempt items has to be split by hand. The tool does not apply item exemptions. About what is taxed: Illinois has a 6.25% state rate and local governments add more. The state's 1% tax on groceries was repealed on January 1, 2026, but municipalities and counties can impose their own 1% grocery tax, so the rate on groceries now depends on where you shop. Prescription drugs are taxed at a reduced rate.
Learn more from an authoritative source:
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Results are estimates for informational purposes only and do not constitute professional financial, medical, legal, or technical advice. Read full disclaimer →