2026 rates
Montana Sales Tax Calculator
Montana has no statewide sales tax. There are no local sales taxes either.
Sales tax by city in Montana
| City | Combined rate |
|---|---|
| Billings | 0% |
| Missoula | 0% |
| Great Falls | 0% |
| Helena | 0% |
| Bozeman | 0% |
How Montana sales tax works
Montana is one of five states with no statewide sales tax. The state rate is 0%, so the only tax that can apply to a sale is local, and Montana has no local sales taxes either, so a sale into the state carries no sales tax at all.
That combined rate ranks Montana number 49 of 51 US jurisdictions, 6.57% below the national average of 6.57%.
The major cities in Montana all sit at 0%, so the rate does not move much by address within the state.
Montana has no economic nexus threshold to cross because it levies no statewide sales tax, though local jurisdictions may have their own registration rules.
Rates below are the published 2026 figures. Local rates change more often than state rates, so verify with the Montana revenue authority for a transaction of any size, and remember that the rate is only one input: whether the product is taxable at all, and whether shipping is taxable, both vary by state.
Montana sales tax questions
What is the sales tax rate in Montana?
Montana has no statewide sales tax. There are no local sales taxes either.
Does Montana have local sales taxes?
No. Montana applies a single rate statewide, so the rate does not change by city or county.
When do I have to register for sales tax in Montana?
Montana has no statewide sales tax and therefore no statewide registration threshold, though local rules can apply.
How do I work out sales tax backwards from a total?
Divide the tax-inclusive total by one plus the combined rate to recover the pre-tax price, then subtract. At 0% you divide by 1.0000. The main calculator has a reverse mode that does this.
Is sales tax charged on shipping in Montana?
It depends on how the charge is presented and whether the items are taxable. Some states tax shipping when it is part of a taxable sale and others do not. Confirm the current position with the Montana revenue authority before setting it in your checkout.
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