Old Mill Creek, Illinois Sales Tax Rate
The combined sales tax rate in Old Mill Creek, Illinois is 7.25% as of 2026. That includes the Illinois state rate of 6.25%.
Combined general-merchandise retailers' occupation tax rate for the municipality or unincorporated county area.
Located in Lake County.
Sales tax calculator for Old Mill Creek
- Sales tax (7.25%)
- $7.25
- Total with tax
- $107.25
How this rate is composed
The Illinois state sales tax rate is 6.25%. The combined 7.25% rate for Old Mill Creek comes from Illinois DOR machine-readable rate file (ORDMACHE) (2026 Q3).
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. Reviewed and current as of September 14, 2026.
Managing tax for a business?
For a street-address estimate, use the sales tax calculator. If you are closing a period, managing exempt customers, or replacing spreadsheets, start with the software buyer’s guide or choose your next workflow.
Related local sales tax rates in Illinois
Compare the county and same-type jurisdictions with the closest combined rates.
Old Mill Creek sales tax questions
What is the sales tax rate in Old Mill Creek, Illinois?
The combined sales tax rate is 7.25%. It includes the Illinois state rate of 6.25% and applicable local rates.
How much sales tax is charged on a $100 purchase in Old Mill Creek?
At the 7.25% combined rate, a $100 taxable purchase produces $7.25 in sales tax.
When was the Old Mill Creek sales tax rate reviewed?
Prophit.ai reviewed this guide on 2026-09-14 using Illinois DOR machine-readable rate file (ORDMACHE). Confirm the official source before filing because rates can change.