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Sales tax in Montana

0% state rate, before local taxes
Verified

Last verified

The Montana state sales tax rate is 0%. Cities, counties and districts add their own on top, so the combined rate depends on where in Montana you are.

~0%–6% combined rate at the till, depending on the address
Estimated The most common figure is ~0%, found in 408 of 408 ZIP codes (100%).

State rate from Montana — no general sales tax, checked Sep 4, 2026.

Work out tax, tip and the split for a bill

What a $100.00 purchase costs in tax across Montana

General merchandise. Prepared food, lodging and other categories can be taxed differently, and a tilde marks a figure estimated from ZIP-code data rather than a verified rate for one address.

State rate only (0%)
$0.00
Verified
Most common combined rate (~0%)
~$0.00
Estimated
Highest combined rate (~6%)
~$6.00
Estimated

What makes up a sales tax rate in Montana

  • The state's share: 0%. Levied on every taxable sale in Montana, wherever it happens.
  • Local shares: nothing to ~6% on top. Counties, cities and special districts each add their own, and a seller collects them together. 0 cities in Montana have their own pages with a figure below.
  • Your exact address decides. A ZIP code is a postal route and was never drawn to follow tax boundaries, so two addresses sharing one can owe different totals. The calculator narrows it down from your ZIP code.

Why most Montana figures are estimates

Of 408 ZIP codes in Montana, 0 resolve to a single verified rate for every address inside them. The rest carry an estimate with its range, and the calculator will ask for more than a ZIP code where it needs to.

  • 399 A local district in this state is not yet mapped, so this may not be the whole rate.
  • 5 This ZIP code crosses a tax boundary, so the rate depends on the street address.
  • 4 No tax data is loaded for this area yet.

A ZIP code is a mail route, not a tax boundary. Where one crosses a city or district line, the rate depends on the street address, and no lookup by ZIP code alone can settle it. Enter your ZIP code in the calculator for the closest figure we hold.

Why you can rely on these figures

Published rates
State and local rates compiled from the tax authorities that levy them.
Every figure sourced
See the jurisdiction breakdown and the document each rate came from.
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Missing means missing
Where a rate is not verified we say so instead of showing a short total.

TaxAndTips provides informational estimates from published tax-rate data. Actual tax treatment can depend on the product or service, the exact address, the transaction, exemption status and applicable law. For official obligations, consult the taxing authority or a qualified tax professional.