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Illinois Sales Tax Calculator

Written by:

Mark Stewart is the in-house Certified Public Accountant, an accomplished author and financial media specialist.

Illinois Sales Tax Calculator

If your business sells physical products or certain types of services, you will need to collect and pay sales tax. In Illinois, the first step is visiting the revenue department website and registering for sales tax in order to acquire a seller’s permit, or sales tax permit. 

Use our Sales Tax Calculator to determine your exact sales tax rate and total purchase amount. 

Illinois Sales Tax Calculator

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What Products and Services Are Subject to Sales Tax in Illinois?

Sales of tangible property are subject to sales tax in Illinois. Groceries are also subject to sales tax. Most services in Illinois are exempt from sales tax. 

Illinois Sales Tax Rate

The state sales tax rate in Illinois is 6.25%.

Illinois sales tax rates vary depending on which county and city you’re in. Check MyTax Illinois site for the exact rates.

Sales Tax Rate

How to Register for Illinois Sales Tax

In Illinois, acquire a seller’s permit by following the Department of Revenue’s instructions: 

  1. Go to the My Tax Illinois website
  2. Register for an account.
  3. Fill out the business tax registration form.
  4. There is no fee for business tax registration in Illinois.


In Illinois, and across the country, collecting sales tax is a must if you want to avoid potentially heavy fines and even closure. It’s crucial that you follow your state’s laws, and you might consider consulting with an accountant or tax attorney to make sure you’re in full compliance.


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Illinois Sales Tax Calculator