Illinois Sales Tax Calculator for Instant, Accurate Results

Quickly calculate Illinois state and local sales tax with Otto AI easy-to-use tool. Ensure every transaction is accurate, compliant, and professionally invoiced.

%
Amount of sales tax:$67.60
Price before tax:$932.40

Sales Tax Calculator By States

Idaho SALES TAX RATES BY CITY

CityTotal Sales Tax Rate
Arlington Heights10%
Aurora8.25%
Berwyn10.75%
Bloomington8.75%
Bolingbrook8.5%
Champaign9%
Chicago10.25%
Cicero10.75%
Decatur9.25%
Des Plaines10%
Elgin8.5%
Evanston10.25%
Hoffman Estates10%
Joliet8.75%
Mount Prospect10%
Naperville7.75%
Normal8.75%
Oak Lawn9.75%
Oak Park10%
Orland Park9.75%
Palatine10%
Peoria10%
Rockford8.75%
Schaumburg10%
Skokie10.25%
Springfield9.75%
Tinley Park9.75%
Waukegan8.5%
Wheaton8%

Idaho SALES TAX RATES BY COUNTY

CountyTotal Sales Tax Rate
Adams County6.5%
Boone County7.75%
Champaign County9%
Coles County7.25%
Cook County10.25%
Dekalb County8%
Dupage County8%
Jackson County7.25%
Kane County7%
Kankakee County7.25%
Kendall County7.25%
Knox County7.75%
Lake County7%
Lasalle County6.5%
Macon County9.25%
Madison County6.6%
Mchenry County8%
Mclean County6.25%
Ogle County6.25%
Peoria County7.25%
Rock Island County8.5%
Sangamon County9.75%
St Clair County6.6%
Tazewell County6.75%
Vermilion County6.5%
Whiteside County7.25%
Will County8%
Williamson County9.5%
Winnebago County7.75%

How to Use Our Illinois Sales Tax Calculator

1

Enter your sale amount – Start with your total before tax.

2

Select your location – Sales tax rates vary by location in Illinois.

3

Calculate instantly – Use our Illinois sales tax calculator for a precise total.

Simplify Sales Tax in Illinois for Your Business

Whether you’re selling in Chicago, Springfield, or anywhere across the state, Otto AI illinois sales tax calculator ensures that your sales tax calculations are always accurate, compliant, and up-to-date.

Account for Complex Illinois Tax Rates

Account for Complex Illinois Tax Rates

Illinois has a statewide base sales tax rate of 6.25%, but local jurisdictions add district taxes that can push rates over 10% in some areas. Our sales tax Illinois calculator ensures you include the correct combined state, county, and district rates for every sale, so you're always compliant and your invoices are always accurate.

  • Includes all local, county, and district rates

  • Always up-to-date with the latest tax changes

  • Avoids under- or overcharging customers

Avoid Costly Penalties and Audits

Avoid Costly Penalties and Audits

Charging or remitting the wrong sales tax in Illinois can result in steep fines, penalties, and time-consuming audits. Otto AI Illinois sales tax calculator updates with the latest rates, so you avoid costly mistakes and protect your business from unnecessary risks.

  • Automatic rate updates

  • Helps you stay compliant

  • Reduces audit risk

Simplify Invoicing and Checkout

Simplify Invoicing and Checkout

Manually researching sales tax rates by ZIP code is time-consuming and error-prone. Our sales tax calculator Illinois tool provides instant, precise totals you can insert directly into your invoices or e-commerce checkout, speeding up transactions and ensuring transparency with your customers.

  • Instant, accurate calculations

  • Easy to use for invoices and online sales

  • Improves customer trust

Stay Organized with Accurate Reporting

Stay Organized with Accurate Reporting

Otto AI doesn't just calculate—our sales tax in Illinois calculator helps you track collections over time and generate clear, comprehensive reports. When it's time to file, you'll have organized records ready to submit, saving you time and stress during tax season.

  • Tracks all your sales tax collections

  • Generates detailed reports

  • Makes tax season easy

Illinois Sales Tax Calculator FAQs

The state sales tax rate is 6.25%, but with local taxes, the combined rate can exceed 10% depending on the location.

Simply enter your sale amount and your location, and it instantly calculates the exact sales tax you need to collect based on combined state and local rates.

Yes. If your sales meet Illinois's economic nexus thresholds, you must collect sales tax on sales to Illinois customers.

Yes. Otto AI calculator includes district taxes so you always have the correct combined rate, whether you're selling online or in person.

Filing frequency depends on your sales volume—some businesses file monthly, while others file quarterly or annually.

Yes. Otto AI securely saves your previous calculations, making it easy to generate reports or reference past sales tax data anytime.

Manage Accounting, Invoicing, and Contracts with Otto AI

Start using Otto AI today to calculate illinois sales tax, send professional invoices, manage your contracts, and keep your accounting organized—all in one powerful platform.