Graduated · top 5.65% Rank #32 of 51 2026 tax year

State income tax · 2026 tax year

How much does $100K take home in Montana?

Montana applies a graduated income tax topping out at 5.65%. See where every withheld dollar goes, the full bracket schedule, and your own take-home.

$100,000 single filer in Montana
IRS · SSA · Tax Foundation · 2026

The bottom line

A single filer earning $100,000 in Montana keeps $74,891 after federal income tax, FICA, and Montana's graduated state tax, an effective rate of 25.1% (state tax alone: $4,290).

Single filer taking the standard deduction, wage income only. Federal and FICA are identical in every state - Montana's difference is its state income tax line.

$74,891 Take-home on $100K (single)
25.1% Effective rate (fed + FICA + state)
$4,290 State income tax on $100K
#32 of 51 by total burden (1 = lowest)

Every figure on PlainSalary is computed directly from official IRS, state Department of Revenue, and SSA tax data, no number is typed in by an editor. State tax figures are computed directly from official Department of Revenue data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.

Montana 2026 brackets, single filer

2 marginal rates from 4.70% to 5.65%. The highlighted segment is where $100,000 of income lands.

$0 - $48K: 4.7% marginal rate $48K - +: 5.7% marginal rate (your bracket) 5.7% $100K income $0 $100K $200K $300K $400K $500K $600K

Each segment width is proportional to its bracket size up to $600K. Color intensity rises with the marginal rate. Your bracket is highlighted in amber.

  • $0 $48K 4.7%
  • $48K + 5.7% Your bracket

Montana's graduated system stacks 2 marginal rates. Only the income inside each band is taxed at that band's rate, so your effective state rate (4.3%) sits well below the 5.65% headline. The calculator shows this for your own income.

Montana take-home pay by salary (2026, single)

What's left after federal income tax, FICA, and Montana state tax.

$50,000 gross

$40,762

take-home · 18.5% effective tax

$100,000 gross

$74,891

take-home · 25.1% effective tax

$200,000 gross

$138,988

take-home · 30.5% effective tax

Where Montana sits on the state-tax scale

States immediately above and below Montana by total tax burden on a $100K single filer (state income tax shown).

MI

Michigan

4.25% top marginal rate
Structure
Flat tax
Burden @ $100K
$4,010

NJ

New Jersey

10.75% top marginal rate
Structure
Graduated
Burden @ $100K
$4,250
Selected

MT

Montana

5.65% top marginal rate
Structure
Graduated
Burden @ $100K
$4,290

GA

Georgia

5.19% top marginal rate
Structure
Flat tax
Burden @ $100K
$4,350

ID

Idaho

5.30% top marginal rate
Structure
Flat tax
Burden @ $100K
$4,450

Montana 2026 bracket schedule (single filer)

Taxable income Marginal rate
$0 – $47,500 4.70%
$47,500 – $1,000,000,000,000,000 5.65%

Source: Tax Foundation, 2026 State Individual Income Tax Rates and Brackets, cross-checked against the Montana Department of Revenue. Single-filer schedule.

Quick Montana state-tax estimate

Enter taxable income for the Montana state portion (single filer, 2026). For the full federal + FICA picture use the calculator.

Methodology

Take-home figures assume a single filer taking the standard deduction with wage income only, no credits, itemized deductions, or local taxes. Federal tax uses the 2026 IRS brackets (Rev. Proc. 2025-32); FICA is 6.2% Social Security to the $184,500 wage base plus 1.45% Medicare. State tax walks Montana's 2026 brackets. See the full methodology.

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