Sales tax by state · Montana
Montana Sales Tax Rate
Montana has no statewide sales tax. Here’s how that compares nationally and what you pay in the state’s major cities.
- Montana state rate 0% statewide base rate
- National rank No tax no state sales tax
- Billings combined 0% state + local, ZIP 59101
- Tax on $100 $0.00 in Billings
Sales tax in Montana
Montana is one of 5 states that don’t charge a statewide sales tax. In the cities sampled for this study, no local sales tax applies either.
Combined rates in Montana’s major cities
The combined rate for one downtown ZIP code in each city, broken down by who charges it:
| City | State | County | City | Special | Combined |
|---|---|---|---|---|---|
| Billings 59101 | 0% | 0% | 0% | 0% | 0% |
| Helena 59601 | 0% | 0% | 0% | 0% | 0% |
How Montana compares
With no statewide sales tax, Montana sits at the bottom of the national ranking. The highest statewide rate is California’s 7.25%, and the average across all 51 states and DC is 5.02%. See every state ranked on sales tax by state.
Montana sales tax — FAQ
What is the sales tax rate in Montana?
Montana has no statewide sales tax.
What is the sales tax in Billings, Montana?
The combined sales tax rate in downtown Billings (ZIP 59101) is 0%: 0% state. Rates in other parts of the city can differ.
How do I calculate sales tax in Montana?
With no state or local sales tax where you shop, there is nothing to add at the register. Enter a ZIP code in the sales tax calculator to confirm the rate for a specific address.
Is Montana's sales tax high compared with other states?
Montana is at the bottom: it is one of only 5 states with no statewide sales tax. The highest statewide rate is California’s 7.25%.
Rates as of September 2026. City rates are for one downtown ZIP code and can differ elsewhere in the city.
Data: State departments of revenue, via APIVerve. Our tables, charts and text are licensed CC BY 4.0: reuse them freely, including commercially, as long as you credit us. Cite as: Digest Your Finances, “Sales Tax by State”, https://digestyourfinances.com/studies/sales-tax-by-state/montana/ — based on State departments of revenue. CC BY 4.0.
