City rate guide · Reviewed August 7, 2026
Crystal Lake, Illinois Sales Tax Rate
8.75% combined sales tax rate
Located in McHenry County.
How this rate is composed
The Illinois state sales tax rate is 6.25%. The combined 8.75% rate for Crystal Lake comes from Illinois DOR machine-readable rate file (ORDMACHE) (2026 Q3).
Combined general-merchandise retailers' occupation tax rate for the municipality or unincorporated county area.
Business-district and home-rule address-level layers can change the rate at specific addresses; grocery rates differ.
Rates change on official schedules — confirm the current rate and effective date against the source above before filing.
Nearby cities in Illinois
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