Illinois Sales Tax Guide

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Illinois Sales Tax Guide

Everything your business needs to know about Illinois sales tax registration, rates, and compliance. Illinois has a 6.25% state sales tax, with local taxes adding significantly more in many areas.

Quick Facts

State Sales Tax Rate6.25%
Chicago Rate10.25%
Maximum Combined Rate11%+
Registration CostFree
Processing Time5-10 business days
Governing AgencyIllinois Department of Revenue (IDOR)

Who Needs an Illinois Sales Tax License?

If your business sells tangible personal property in Illinois, you must register for a Certificate of Registration. This applies to:

  • Retail stores and e-commerce sellers
  • Restaurants and food service businesses
  • Manufacturers selling directly to consumers
  • Out-of-state sellers with Illinois economic nexus ($100,000 or 200 transactions)

Explore Our Illinois Guides

How to Register
Step-by-step instructions for registering with the Illinois Department of Revenue.

Rates and Fees
Complete breakdown of the 6.25% state rate plus local tax rates.

Business Licensing
Additional licenses your Illinois business may need.

IDOR Contact
Phone numbers, addresses, and office locations.

Official Resources

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