The Montana Finance Guide: 2026 Research

Is there really no sales tax in Montana?

Yes, for ordinary retail purchases. Montana has no general statewide sales tax, so the rate on groceries, clothing, tools and most services is 0%. There is no local general sales tax layered on top either, because there is nothing to layer it on.

The exceptions are targeted. Overnight lodging carries a combined 8% state lodging facility sales and use tax, made up of a 4% Lodging Facility Use Tax and a 4% Lodging Sales Tax. Qualifying rental vehicles carry a 4% selective sales and use tax on the base rental charge. Designated resort communities can impose their own local resort tax on covered transactions. That resort tax sits alongside the state lodging tax rather than replacing it. A lodge outside Bozeman therefore collects 8% on its rooms while charging nothing extra on a spare part sold at the front desk.

A Montana business that ships to customers in other states faces the reverse problem. Those states' economic nexus thresholds apply to it even though Montana has none of its own for ordinary retail goods.

How much comes out of a Montana paycheck?

Four things: Montana income tax, federal income tax, Social Security and Medicare. State withholding follows the 2026 Employer and Information Agent Guide, which the Department of Revenue rewrote after House Bill 337, together with the employee's Form MW-4. The 2026 method dropped the old personal and dependent allowances and the separate Montana standard deduction, so an MW-4 filled out a few years ago no longer describes how the number is calculated.

Federal payroll taxes run alongside: 6.2% Social Security on wages up to $184,500 and 1.45% Medicare on all wages. Unemployment insurance is employer money only. The state's UI employer handbook says it cannot be deducted from wages, so a UI line on the employee side of a Montana statement is an error, not a quirk.

Every wage payment must come with an itemized statement of deductions showing state income tax, federal income tax, Social Security and any other deduction. The Department of Labor and Industry reads that requirement as applying even in a pay period with no deductions at all. The minimum wage beneath it all is $10.85 an hour, with a $4.00 rate reserved for small businesses outside the federal Fair Labor Standards Act.

What changed in the brackets for 2026?

House Bill 337 did two things. It cut the top ordinary rate from 5.9% to 5.65% and it stretched the lower 4.7% bracket over far more income. For 2026 the 4.7% rate applies through $47,500 of ordinary taxable income for single and married filing separately, $71,250 for head of household and $95,000 for married filing jointly or a qualifying surviving spouse. Income above those lines is taxed at 5.65%.

Compare 2025, when the 4.7% bracket ended at $21,100 for a single filer and $42,200 on a joint return before 5.9% took over. A full-time worker who used to have a slice of income in the top bracket now often has none of it there.

Net long-term capital gains keep their own rates, 3% and 4.1%, with bracket ranges adjusted to the new ordinary thresholds. The lower capital gains rate depends on where ordinary income lands, so the two calculations interact rather than run separately. The same bill raised the Montana Earned Income Tax Credit to 20% of the federal EITC from tax year 2026. It is refundable. Claiming it requires filing a Montana return.

What does a Bozeman lodge technician actually take home?

A maintenance technician at a lodge outside Bozeman earns $23 an hour, works 40 hours a week and is paid every two weeks, filing single with no extra withholding on the MW-4. The site's calculator produces this for one check:

Figures come from the Online Paystub Montana paycheck calculator for 2026. Local taxes, health premiums and retirement contributions are not included.

Notice that there is no local income tax line and no sales tax anywhere in the picture; what leaves this check is federal and state income tax plus the two federal payroll taxes. At this pay level the annual taxable figure sits under the $47,500 line, so the 5.65% rate never enters the calculation, which is what House Bill 337 was written to do. Different hours or a second rate can be tested in the Montana paycheck calculator.

Which state taxes my wages if I cross the North Dakota line?

Montana and North Dakota have a reciprocity agreement covering personal-services income: wages, salaries, commissions and employee fees. A Montana resident earning wages in North Dakota pays Montana tax on them, not North Dakota tax. A North Dakota resident working in Montana can claim exemption from Montana withholding through the current Form MW-4 process and pay at home instead. North Dakota is the only state Montana has this arrangement with.

The agreement stops at wages. Business income, rental income and investment income earned across the line still need their own state-by-state analysis.

Remote work follows the body, not the employer. A nonresident who works from a Montana home has Montana-source wages even if the company is in Seattle or Denver. A Montana resident who works remotely for an out-of-state employer is sourced to Montana, which is why tax paid to another state under that state's convenience rule does not automatically earn a Montana credit. There is a narrow exclusion for nonresidents who work in Montana for 30 days or fewer and in more than one state during the year, but athletes, entertainers, construction workers and specified key employees are carved out of it.

Why does my Montana return start with a federal number?

Since the 2024 simplification, Form 2 begins with federal taxable income, applies Montana additions and subtractions, separates ordinary income from net long-term capital gains and then applies the rate table. Montana no longer keeps its own personal exemptions or a separate state standard deduction, so a change in a federal deduction flows straight into the Montana figure. Social Security benefits are not taxed by Montana.

Residency sets the scope. A resident, by domicile or by keeping a permanent place of abode in the state, is taxed on income from everywhere. A part-year resident is taxed on income received while living here plus Montana-source income from the rest of the year. A nonresident owes tax only on Montana-source income. Filing generally follows the federal requirement, but a Montana addition or subtraction can trigger a state return on its own. Anyone with Montana withholding should file to recover a refund. A statement's year-to-date columns are the quickest way to see how much has already been prepaid, a habit explained in Online Paystub's piece on year-to-date meaning.

One honest caveat from the Department of Revenue's own site: as of late August 2026 the posted Form 2 instructions stop at tax year 2025. The 2026 rates, brackets and withholding rules are settled. The line-by-line 2026 instructions and final filing thresholds are still to come.