US • Taxes • Updated for 2026

Illinois Sales Tax Calculator 2026

Illinois features a multi-tiered sales tax system with a base state rate of 6.25%, but total rates in hubs like Chicago can soar to 10.25% or higher due to municipal and special district add-ons. Significant legislative changes in 2025 and 2026 have reshaped how leases and groceries are taxed. Our calculator is powered by the latest Illinois Department of Revenue (IDOR) data, ensuring your business stays compliant with the new destination-based sourcing rules.

Inputs

Enter purchase details to calculate sales tax.

Purchase Price

Enter the price before tax.

Results

Sales tax breakdown for Illinois.

Effective Tax Rate: 6.250%

This category is taxable under the configured rules.

Purchase Price$100.00

Sales Tax$6.25

Total Price$106.25

Rate Breakdown

State6.250%

County0.000%

City0.000%

Special District0.000%

Base combined6.250%

Total6.250%

Calculator inputs stay on your device (local processing).

Find your city

Get the exact combined sales tax rate for your city. Select a city below or use the search.

ChicagoSales tax calculator →

Disclaimer: All calculators on this website are provided for informational and illustrative purposes only. The results do not constitute professional advice (including legal, tax, financial, medical, or other advice). Despite careful programming, we assume no liability for the accuracy, completeness, or timeliness of the results. For matters requiring professional advice, we recommend consulting an appropriate specialist (e.g., a tax advisor, lawyer, accountant, or physician).

How This Calculator Works

Enter the purchase price and category (general, groceries, etc.).
Optionally adjust county, city, and special district rates if you know your local breakdown.
Tax = Price × (Total Rate / 100); total = Price + Tax.

Calculation Methodology

We calculate sales tax using the combined rate:

Total Rate: State + County + City + Special (e.g. RTA)
Tax Amount: Price × (Total Rate / 100)
Total Price: Price + Tax

Illinois Sales Tax Calculator 2026

Illinois Sales Tax Structure (2026)

Illinois has a 6.25% state sales tax. Counties, cities, and Regional Transportation Authorities (RTAs) can impose additional rates, so combined rates vary widely.

State rate: 6.25%
County/city/RTA add-ons: vary by locality (Cook County + Chicago can add ~4%)
Typical combined rate: 6.25% to 10.25% (Chicago area up to 10.25%)

Major Illinois Tax Changes for 2025-2026

Staying compliant in Illinois requires tracking recent legislative shifts:

Grocery Tax Repeal (2026): Starting January 1, 2026, Illinois is repealing the 1% state tax on groceries. However, local municipalities may still choose to impose their own local grocery taxes.
New Lease Tax (2025): As of January 1, 2025, lease payments for tangible personal property are now subject to state sales tax, making Illinois one of the more aggressive states for equipment and vehicle rentals.
Sourcing Rules: Illinois has shifted toward Destination-Based Sourcing for remote retailers, meaning the tax rate is determined by where the item is delivered, not where it was shipped from.

Sales Tax Rates for Major Illinois Areas

Use city pages for the most accurate combined rate and a full breakdown.

Area	Example combined rate	Calculator
Chicago (Cook County)	10.25%	Chicago Sales Tax Calculator
Springfield	8.25%	—
Naperville	8%	—

Illinois Nexus & The 'Leveling the Playing Field' Act

Under the "Leveling the Playing Field for Illinois Retail Act," remote sellers with over $100,000 in annual Illinois sales must collect and remit tax at the destination rate. Notably, as of January 1, 2026, the 200-transaction threshold has been removed, simplifying the requirement to a purely revenue-based test. Businesses must use the IDOR Tax Rate Finder or an integrated calculator like ours to ensure they apply the correct local rates for every delivery address.

How to Find Your Exact Illinois Sales Tax Rate

Combined rates vary by county, city, and RTA district. Use the calculator above with your known local rates, or look up your rate by address on the Illinois Department of Revenue Sales Tax lookup. For Chicago: Chicago Sales Tax Calculator, or browse Illinois tax calculators.

Frequently Asked Questions

Q:What is the sales tax rate in Chicago?

As of 2025, the total sales tax rate in Chicago is 10.25%. This is one of the highest in the country, comprising the 6.25% state rate, a 1.75% Cook County tax, a 1.25% Chicago city tax, and a 1% RTA (Regional Transportation Authority) tax.

Q:Is there sales tax on services in Illinois?

Generally, Illinois does not tax pure services. However, the state imposes a Service Occupation Tax (SOT) on tangible personal property transferred as part of a service (e.g., parts used during a car repair). Professional services like consulting or legal advice remain non-taxable.

Q:Are groceries taxed in Illinois?

Groceries (unprepared food for home consumption), drugs, and certain medical items are exempt from Illinois sales tax. Starting January 1, 2026, the state is repealing the 1% state grocery tax; local grocery taxes may still apply. Prepared food and candy may be taxable.