What is the sales tax for Westby, Montana? - The sales tax for Westby, Montana is 5% as of 2026. 5% is the combine sales tax from 5% of Montana state sales tax, 0% of local sales tax, and 0% of Sheridan county sales tax.
| State | Montana | State Tax | 5% |
|---|---|---|---|
| City | Westby | City Tax | 0% |
| County | Sheridan | County Tax | 0% |
| Special Tax | 0% | ||
| Total Sales Tax | 5% | ||
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