Montana tax guide: sales, income and property tax
Three taxes decide most everyday money calculations in Montana: what you pay at the register, what leaves your paycheck, and what your home costs each year. This guide sets out each one with the current figures, then links to the calculators that apply them. Rates are reviewed against state sources; confirm a specific transaction with the Montana Department of Revenue.
The short answer
Montana: 0% state sales tax, about 0% average combined (rank 49 of 51 — 6.61 points below the 6.61% all-state average), a progressive income tax, and an average effective property tax of 0.83% (rank 30 of 51). On a $100 purchase at the average combined rate, the tax is $0.
Sales tax in Montana
The statewide base rate is 0%. Counties, cities and special districts add their own layers, bringing the average combined rate to about 0% — and the rate at a specific address can sit well above or below that average. On a $100 purchase, the tax is $0 at the base rate and roughly $0 at the average combined rate. The difference is local tax, which is why two towns in the same state can charge noticeably different totals on the same item.
No sales tax in Montana (a few resort towns levy local resort taxes).
Worked examples at the average combined rate
What the 0% average combined rate adds to purchases of different sizes:
| Purchase | Tax | Total |
|---|---|---|
| $25 | $0 | $25 |
| $100 | $0 | $100 |
| $500 | $0 | $500 |
| $1,000 | $0 | $1,000 |
| $10,000 | $0 | $10,000 |
If you sell into Montana from another state, economic nexus rules can oblige you to collect its tax once your sales pass the state's threshold — the exact threshold and what counts toward it are in the Montana sales tax calculator and rate page, and the data hub for the state is the Montana locations page.
Income tax in Montana
Montana taxes income progressively, in brackets, like the federal system. Progressive, top rate around 5.9%. Montana has NO statewide sales tax. Because brackets tax slices of income at rising rates, your effective state rate is always below your top (marginal) rate.
Federal tax applies the same everywhere; the state layer is what changes a paycheck between two states. Run the same salary through the paycheck calculator and the take-home pay calculator with and without a state rate to see the size of the difference before negotiating a move or a remote-work arrangement.
Property tax in Montana
The average effective property tax rate in Montana is about 0.83% of a home's value per year. On a $400,000 home that is roughly $3,320 a year, or $277 a month — a real line in the housing budget, collected through escrow in most mortgages. Averages hide wide local variation: the county and school district set most of the rate, and homestead exemptions can cut the taxable value for owner-occupiers.
How Montana compares
The states closest to Montana on average combined sales tax, with the national extremes for scale. The all-state averages across the 51 entries are 6.61% for combined sales tax and 1.04% for property tax.
| State | Combined sales tax | Property tax |
|---|---|---|
| Montana (this guide) | 0% | 0.83% |
| Alaska | 1.82% | 1.23% |
| Delaware | 0% | 0.61% |
| New Hampshire | 0% | 1.77% |
| Oregon | 0% | 0.82% |
| Louisiana — highest combined | 9.56% | 0.55% |
| Oregon — lowest combined | 0% | 0.82% |
What this means for your money
Property tax in Montana sits near the middle nationally: an average effective rate of 0.83% (rank 30 of 51; all-state average 1.04%). On a $400,000 home that is about $3,320 a year, or $276.67 a month through escrow. No single tax dominates the picture here — the state's overall position is the sum of three middling taxes rather than one extreme one.
Read together: Montana combines an average combined sales tax of 0% (rank 49 of 51), an average effective property tax of 0.83% (rank 30 of 51) and progressive income tax brackets. A household comparing states should compare all three against its own pattern — a high earner who rents weighs the income tax most; a homeowner on a fixed income weighs the property tax most.
Key figures
| Figure | Montana |
|---|---|
| State sales tax (base) | 0% |
| Average combined sales tax | 0% |
| Groceries | Exempt (state level) |
| Income tax structure | Progressive brackets |
| Average effective property tax | 0.83% |
| Capital | Helena |
| Largest city | Billings |
Sales tax · average combined
Property tax · average effective
Chart: DailyFinance.tools · Rates are reviewed averages from our state tax dataset — your exact local rate may differ.
Montana tax FAQs
What is the sales tax rate in Montana?
The statewide base rate in Montana is 0%. With local taxes added, the average combined rate is about 0%, and the exact rate depends on where the sale takes place.
Does Montana have a state income tax?
Yes. Progressive, top rate around 5.9%. Montana has NO statewide sales tax.
Are groceries taxed in Montana?
No sales tax in Montana (a few resort towns levy local resort taxes).
How does Montana rank for sales tax nationally?
Montana's average combined rate of 0% ranks 49 of 51 states and DC (1 = highest) — 6.61 points below the all-state average of 6.61%. The highest average combined rate is Louisiana at 9.56%; the lowest is Oregon at 0%.
How much property tax do you pay in Montana?
The average effective property tax rate in Montana is about 0.83% of a home's value per year — rank 30 of 51, against an all-state average of 1.04%. On a $400,000 home that is roughly $3,320 a year. County assessors set actual bills, and exemptions can reduce them.
Where can I verify Montana tax rates?
The rates in this guide are reviewed averages for planning. For a filing or a specific address, confirm the current rate with the Montana Department of Revenue (sales and income tax) or the county assessor (property tax).
Reviewed by Tahir Shehzad, ACMA · State tax data reviewed November 2026 against official sources — see our Methodology and Editorial Policy. Figures are educational estimates, not tax or financial advice. For a filing decision, confirm with the Montana Department of Revenue.