What is the sales tax in Olathe city? - The sales tax in Olathe city of Colorado is 8.65% as of 2025. Use the Olathe sales tax calculator to calculate the sales tax for any purchase in Olathe.
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Below is a list of the state sales tax, city sales tax, and county tax rate for Olathe.
| County | State | City | Zip Code | State Tax | City Tax | County Tax | Total Tax |
|---|---|---|---|---|---|---|---|
| Montrose | Colorado | Olathe | 81425 | 2.9% | 4% | 1% | 8.65% |