What is the sales tax in zip code 99020? - The sales tax in zip code 99020 in Marshall, Washington is 8.1% as of 2025. Use the 99020 sales tax rate calculator to calculate the sales tax for any purchase in 99020.
99020 Sales Tax Rate Calculator |
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Below is a list of the state sales tax, city sales tax, and county tax rate for .
| County | State | City | Zip Code | State Tax | City Tax | County Tax | Total Tax |
|---|---|---|---|---|---|---|---|
| Spokane | Washington | Marshall | 99020 | 6.5% | 0% | 1.6% | 8.1% |