What is the sales tax in Union city? - The sales tax in Union city of Missouri is 10.475% as of 2025. Use the Union sales tax calculator to calculate the sales tax for any purchase in Union.
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Below is a list of the state sales tax, city sales tax, and county tax rate for Union.
| County | State | City | Zip Code | State Tax | City Tax | County Tax | Total Tax |
|---|---|---|---|---|---|---|---|
| Franklin | Missouri | Union | 63084 | 4.225% | 2% | 2.25% | 10.475% |