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Montana Paycheck Calculator (2026)

Last reviewed: April 20, 2026

Montana applies a flat 4.7% state income tax to wage income, the result of legislative simplification under SB 399 that replaced a multi-bracket schedule with a single rate. Montana historically allowed residents to deduct federal income taxes paid on the state return, and the simplification reform restructured how that deduction interacts with the flat rate. The state has no State Disability Insurance program funded by employee payroll, and no Montana city levies a broad local income tax on wages. State revenue comes principally from income tax, property tax, and resource extraction royalties; Montana has no statewide general sales tax. This calculator estimates 2026 Montana take-home pay after federal tax, FICA, and the state flat rate, with support for pre-tax 401(k) and HSA contributions.

vs. baseline ($85,000 single filer)

A $85,000 salary in Montana takes home approximately $4,000 less than the same salary in a no-income-tax state like Texas or Florida.

Montana state tax breakdown

Single-filer state income tax brackets used by the calculator for 2026.

Taxable IncomeRate
$0+4.70%

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Montana paycheck FAQ

When did Montana move to a flat rate?
Montana enacted SB 399 in 2021 and the simplified rate structure took effect in subsequent years. The reform replaced a tiered schedule with the current flat 4.7% rate.
What happened to the Montana federal-tax deduction?
The historical federal-tax deduction was tied to the prior progressive structure. The SB 399 reform restructured how federal liability interacts with state liability; the calculator applies the 4.7% flat rate without separately modeling a federal-tax deduction.
Does Montana have a sales tax?
No. Montana is one of a small group of US states with no statewide general sales tax. State revenue relies on income tax, property tax, and resource extraction royalties instead.
Does Montana have State Disability Insurance?
No. Montana does not run a State Disability Insurance program funded by employee payroll. Workers who want short-term disability coverage typically obtain it through their employer or a private policy.

Take-home at common salaries for Montana

Dedicated salary-anchor pages with a federal-state-FICA breakdown, vs-baseline callouts, and a calculator pre-set to that salary and Montana.

$50,000 after taxesin Montana$75,000 after taxesin Montana$100,000 after taxesin Montana$150,000 after taxesin Montana$200,000 after taxesin Montana$250,000 after taxesin Montana

See also

Run the full US paycheck calculatorCompare to Idaho paycheck calculatorCompare to Wyoming paycheck calculatorCompare to North Dakota paycheck calculatorCompare to South Dakota paycheck calculatorCompare paycheck taxes between two locationsPaycheck and tax glossaryHow we calculate paycheck taxes

Reviewed

How This Page Is Reviewed

The Montana paycheck page is reviewed against primary federal and state sources before each major tax-year update. Source links below are the references used to validate brackets, wage bases, and supported local taxes.

Reviewed by

PaycheckCalc Research Desk

Last reviewed

2026-04-20