# Illinois Sales Tax Calculator

> Illinois sales tax is 6.25% at state level, 8.98% on average with local taxes. Add or remove Illinois sales tax from any price.

URL: https://paycheck-math.com/us/sales-tax-calculator/illinois/  
Breadcrumbs: Home > United States > Sales tax calculator > Illinois  
Language: en-US  
Rates checked: 2026-10-29  

Illinois's state sales tax rate is 6.25%. With county and city taxes the average combined rate is 8.98%.

## Result with default inputs

Inputs: amount=100, rate=8.98, mode=add

**Price with tax: $108.98**

- Tax: $8.98

| Line | Item | Amount |
| --- | --- | --- |
| 1 | Price before tax | $100.00 |
| 2 | Tax | $8.98 |
| 3 | **Price with tax** | $108.98 |


To compute other inputs, call the JSON API: `https://paycheck-math.com/api/v1/calculate?path=%2Fus%2Fsales-tax-calculator%2Fillinois%2F&amount=100&rate=8.98&mode=add` or open the page URL with the same query parameters.

## Examples at 8.98%

| Amount | Tax added | Total with tax | Tax inside a tax-included amount |
| --- | --- | --- | --- |
| $10.00 | $0.90 | $10.90 | $0.82 |
| $50.00 | $4.49 | $54.49 | $4.12 |
| $100.00 | $8.98 | $108.98 | $8.24 |
| $250.00 | $22.45 | $272.45 | $20.60 |
| $500.00 | $44.90 | $544.90 | $41.20 |
| $1,000.00 | $89.80 | $1,089.80 | $82.40 |
| $5,000.00 | $449.00 | $5,449.00 | $412.00 |

## Sales tax in Illinois's largest cities

| City | Combined rate |
| --- | --- |
| [Chicago](https://paycheck-math.com/us/sales-tax-calculator/illinois/chicago/) | 10.5% |

## Rates used

|  | Rate |
| --- | --- |
| State rate | 6.25% |
| Average local rate | 2.73% |
| Average combined rate | 8.98% |

Official source: [Illinois revenue department](https://taxfoundation.org/data/all/state/state-income-tax-rates-2026/). Rates checked on Oct 29, 2026.

## Questions people ask

### What is the sales tax rate in Illinois?

The state rate is 6.25% and local taxes bring the average combined rate to 8.98%. Your exact rate depends on the city, county and special district where you buy.

### How do I calculate sales tax?

Multiply the price by the rate: $100 at 8.25% is $8.25 of tax, $108.25 in total. To remove tax from a total, divide by 1 + the rate: $108.25 ÷ 1.0825 = $100.

### Which states have no sales tax?

Alaska, Delaware, Montana, New Hampshire and Oregon have no statewide sales tax, although some Alaska and Montana localities charge their own.

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Estimates for information only, not tax, legal or financial advice. Check with an adviser or the official tax authority.