Illinois's statewide sales tax rate is 6.25%, and local taxes add an average of 2.73% for a combined average of 8.98% (Tax Foundation, rates as of July 1, 2026). Add tax to a price or work backward from a receipt below.
Rates are 2026 state rates plus population-weighted average local rates; your city or county may differ, and some items (like groceries) are taxed differently.
Sales tax on common purchases in Illinois
At the average combined rate of 8.98%, every $100 you spend carries $8.98 in sales tax. Where the highest local rate applies, the total rate is 11%, or $11.00 per $100. Rates are population-weighted averages, so your city or county may differ slightly — enter its exact rate in the calculator for a precise total.
Illinois sales tax at the average combined rate (8.98%)
Price
Sales tax
Total
Total at 11%
$10.00
$0.90
$10.90
$11.10
$25.00
$2.25
$27.25
$27.75
$50.00
$4.49
$54.49
$55.50
$100.00
$8.98
$108.98
$111.00
$500.00
$44.90
$544.90
$555.00
$1,000.00
$89.80
$1,089.80
$1,110.00
Working backward from a receipt
To find the price before tax, divide the total by 1 plus the rate: in Illinois, a $100.00 receipt at 8.98% breaks down into $91.76 of merchandise and $8.24 of tax. That is handy for expense reports and for checking a receipt that only shows the total.
Price before tax for tax-inclusive totals in Illinois (8.98%)
Total paid
Price before tax
Tax included
$10.00
$9.18
$0.82
$25.00
$22.94
$2.06
$50.00
$45.88
$4.12
$100.00
$91.76
$8.24
$500.00
$458.80
$41.20
$1,000.00
$917.60
$82.40
How Illinois compares with neighboring states
Illinois's 6.25% state rate ranks 13th of the 50 states and DC, and its combined average ranks 8th (1st = highest in both).
Sales tax rates in Illinois and neighboring states (July 1, 2026)
Which goods are taxable differs by state: groceries, prescription drugs and clothing are often exempt or taxed at a reduced rate, while prepared food and general merchandise usually pay the full rate. Check unusual purchases against the state's current rules.