IL tax rules›Chicago
Chicago, IL Sales Tax (2026)
Verified May 31, 2026
Combined sales tax 10.25% (6.25% IL state + 1.75% Cook County + 1.25% city + 1.0% RTA); rises to 10.5% June 2026 — among the highest of any major US city.
Official source: tax.illinois.gov →
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