Montana Sales Tax Calculator 2026
Montana charges no sales tax — at state or local level
There is no sales tax to calculate in Montana
Montana has no state or local sales tax.
A $100 purchase costs exactly $100.00 at the till. Neither the state nor any county or city adds a percentage on top, so no sales tax calculation is required for a transaction that takes place in Montana.
What this means for you
If you are shopping
The advertised price is the final price. This is why Montana is a common destination for larger purchases made by residents of neighbouring states — though your home state may still levy use tax on goods you bring back.
If you run a business in Montana
You do not register for, collect, or remit sales tax on sales made within Montana. Selling into other states is different: once you cross another state's economic nexus threshold, you may need to register there and collect at that state's rate.
If you are comparing states
No sales tax does not mean low overall tax. States without one typically raise revenue through income, property or excise taxes instead.
States nearest to Montana by combined rate
The other states with no sales tax
Only 4 states levy no sales tax at either state or local level:
Alaska is often counted alongside them, but it is a different case: it has no statewide rate while its boroughs and municipalities can still levy their own.
Need to calculate sales tax for another state?
Use the calculator below with any rate — useful if you are buying from, or selling into, a state that does charge sales tax.
Calculate Sales Tax
Enter your amount to see the complete sales tax breakdown for Montana
Montana sales tax questions
Does Montana have sales tax?
No. Montana levies neither a state sales tax nor any local sales tax, so the price on the shelf is the price you pay. It is one of only 4 states with no sales tax at any level.
Do I need to charge sales tax if my business is in Montana?
Not on sales made within Montana. If you sell into other states, economic nexus rules there may still require you to register and collect that state's sales tax once you pass its sales or transaction threshold.
Is anything still taxed in Montana?
Montana has no state or local sales tax. Other taxes such as excise, lodging or income tax may still apply — the absence of sales tax does not mean the state levies nothing.
Which other states have no sales tax?
Delaware, Montana, New Hampshire, Oregon — 4 in total. Alaska is a separate case: it has no statewide rate, but its local jurisdictions can levy their own.