Montana Sales Tax Calculator
Montana has no general statewide sales tax, according to the state’s own tax page (checked November 8, 2026). The Montana page we read does not say whether local sales taxes apply, so check the state’s own lookup for the combined rate at an address. If you know a local rate, enter it below to see the tax on a purchase; with no local rate the tax is $0.00.
Maintained by Archie Chang · Rate checked November 8, 2026 · Methodology & sources
Your purchase
Starts at 0. Local rates are not built in: look yours up on the state’s official rate tool and type it here.
Tax and total
Total with tax
$100.00
Combined rate 0%
The tax rounds half up to the cent. A seller’s own rounding rules and any items taxed at other rates can change the final charge.
FedRateCalc is not a tax agency and this is not tax advice. The state tax agency’s own rate page and lookup tool are authoritative, and a seller’s receipt shows the tax actually charged.
Montana rate and local taxes
Statewide rate: none (the page says Montana has no general sales tax). The page does not state when the rate took effect.
The Montana page we read does not say whether local sales taxes apply, so check the state’s own lookup for the combined rate at an address. This site does not show an average local rate because no official source publishes one.
Official page: Montana tax agency page.
Worked example
A $200.00 purchase at the 0% state rate: $200.00 × 0% = $0.00 of state tax, so the total is $200.00 + $0.00 = $200.00 before any local tax. To work backward from a total that includes tax, divide it by 1 plus the combined rate.
Frequently asked questions
What is the Montana sales tax rate?
Montana’s official tax page says it has no general sales tax. The Montana page we read does not say whether local sales taxes apply, so check the state’s own lookup for the combined rate at an address. Checked November 8, 2026.
Does Montana have local sales taxes?
The Montana page we read does not say whether local sales taxes apply, so check the state’s own lookup for the combined rate at an address.
How do I find the price before tax from a Montana total?
Divide the total by 1 plus the local rate as a decimal. With a 1.5% local rate, a $101.50 total divided by 1.015 is $100.00 before tax.
Where is the official Montana rate page?
The page this calculator’s rate comes from is https://revenue.mt.gov/taxes/general-sales-tax.
Cite this page
Page title: Montana Sales Tax Calculator: No State Sales Tax. Updated November 8, 2026. Canonical URL: https://fedratecalc.com/sales-tax-calculator/montana/
Data source: Montana tax agency sales tax page, compiled by FedRateCalc.
Plain-text citation
FedRateCalc. Montana Sales Tax Calculator: No State Sales Tax. Updated November 8, 2026. https://fedratecalc.com/sales-tax-calculator/montana/HTML link
<a href='https://fedratecalc.com/sales-tax-calculator/montana/'>FedRateCalc</a>