New Illinois Sales Tax Rates for 2026

Written By: Ashley Trabaris, CPA, MST, Senior Manager

Heads up, Illinois! Starting January 1, 2026, many municipalities in Cook, DuPage, Kane, Lake, and McHenry Counties will see changes in their sales tax rates.

Please update your cash registers and computer systems to account for the change. Make sure your sales staff know to adjust their quotes for the change in rates if materials are going to be purchased or delivered after January 1, 2026.  Many municipalities are changing their rates for the change in grocery tax so please read below to see if you are impacted!

Nearby municipalities that have increased their rates are:

McHenry County:

DuPage County:

Cook County:

Lake County:

Will County:

Many other counties in Illinois have also changed their rates - visit the link below to access the Illinois Informational Bulletin for specifics on the business districts or municipalities impacted.

tax.illinois.gov/content/dam/soi/en/web/tax/research/publications/bulletins/documents/2026/fy-2026-10.pdf

New combined sales tax rates can be verified using the MyTax Illinois Tax Rate Finder at mytax.illinois.gov and select rates for January 2026.

www.illinois.gov/services/service.tax-rate-finder.html

If you have any questions, please feel free to contact someone on our SALT team at 847-956-1040.

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