Sales tax United States · Rates as of 1 July 2026
Montana Sales Tax Rate (2026)
Montana has no statewide sales tax. Use the calculator to add or remove tax from any price.
Montana sales tax calculator
Your exact rate depends on the city and county of the sale; enter it above if you know it.
How Montana sales tax works
Montana has no general sales tax; some resort towns charge a small resort tax on lodging, restaurants and luxury goods.
Montana vs neighbouring states
| State | State rate | Avg. combined | Tax on $100 |
|---|---|---|---|
| Montana | 0% | 0% | $0.00 |
| Idaho | 6% | 6.03% | $6.03 |
| Wyoming | 4% | 5.39% | $5.39 |
| North Dakota | 5% | 7.09% | $7.09 |
| South Dakota | 4.2% | 6.11% | $6.11 |
Frequently asked questions
What is the sales tax rate in Montana?
Montana has no statewide sales tax. No general sales tax is charged on retail purchases.
How much is the sales tax on $100 in Montana?
At the state rate, $0.00 (total $100.00).
How do I calculate Montana sales tax?
Multiply the price by the rate as a decimal. Example: $50 × 0% = $0.00. To remove tax from a total, divide by (1 + rate): $100 ÷ 1.0000 = $100.00 before tax.
Sources
- Tax Foundation, State and Local Sales Tax Rates, Midyear 2026 (rates as of 1 July 2026; local rates are population-weighted averages).
- State departments of revenue for statewide rates and exemptions.
Rates change. Always confirm the exact rate for a specific address with the relevant tax authority before filing or invoicing.