Deer Park, Illinois Sales Tax Rate
The combined sales tax rate in Deer Park, Illinois in this reference snapshot is 10.25% as of October 1, 2026. That includes the Illinois state rate of 6.25%.
This is a historical rate snapshot, not a current address-specific tax determination. Confirm current rates with the state before use; the snapshot source may describe an earlier period.
Combined general-merchandise retailers' occupation tax rate for the municipality or unincorporated county area.
Located in Cook County.
Sales tax calculator for Deer Park
Uses the reference rate as of October 1, 2026.
- Sales tax (10.25%)
- $10.25
- Total with tax
- $110.25
How this rate is composed
The Illinois state sales tax rate is 6.25%. The combined 10.25% rate for Deer Park comes from Illinois DOR machine-readable rate file (ORDMACHE) (Rates in effect on October 1, 2026 (IDOR current file; latest changes effective August 1, 2026)).
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. Guide reviewed October 20, 2026; rate snapshot dated October 1, 2026.
Managing tax for a business?
A local rate lookup is a starting point. For ongoing sales, choose the calculation engine to determine tax in your system, or compliance software to review a period and prepare returns. For a one-off address estimate, use the free calculator.
Related local sales tax rates in Illinois
Compare the county and same-type jurisdictions with the closest combined rates.
Deer Park sales tax questions
What is the sales tax rate in Deer Park, Illinois?
In the 2026-10-01 reference snapshot, the combined sales tax rate is 10.25%. It includes the Illinois state rate of 6.25% and applicable local rates.
How much sales tax is charged on a $100 purchase in Deer Park?
At the 10.25% reference rate as of 2026-10-01, a $100 taxable purchase produces $10.25 in sales tax.
When was the Deer Park sales tax rate reviewed?
Prophit.ai reviewed this guide on 2026-10-20 against its dated source, Illinois DOR machine-readable rate file (ORDMACHE). The rate snapshot remains dated 2026-10-01; this review does not certify current rates. Confirm the official source before filing because rates can change.