Montana Paycheck Calculator

How to estimate your Montana take-home pay in 2026

Montana uses a two-bracket progressive state income tax with rates of 4.7% and 5.65%, applied to federally taxable wages. This calculator estimates your 2026 net pay after federal withholding, FICA payroll taxes, and Montana state tax so you can plan monthly expenses and compare job offers with confidence.

Enter your annual salary or build it from hourly wages using our gross pay calculator. If you receive 26 paychecks per year, the biweekly pay calculator shows how gross and net amounts spread across the calendar. For federal tax details and dependent credits, see the income tax calculator and salary calculator.

What gets deducted from a Montana paycheck

A typical Montana W-2 paycheck includes three layers of mandatory withholding plus any voluntary deductions you elect through your employer:

• Federal income tax: Calculated from 2026 IRS brackets, your W-4 filing status, and qualifying child tax credits.
• FICA taxes: Social Security at 6.2% (capped at the 2026 wage base of $184,500) and Medicare at 1.45%, with an additional 0.9% on wages above $200,000 for single filers. Use our FICA tax calculator to isolate these amounts.
• Montana state income tax: Progressive rates of 4.7% and 5.65% applied to federally taxable income.

Montana does not levy a separate state disability insurance tax. Pre-tax 401(k) contributions and HSA deposits reduce both federal and Montana taxable income because Montana bases its tax on federally taxable wages.

How Montana state tax is calculated

Montana state tax applies directly to federally taxable income, which equals gross wages after pre-tax deductions minus the federal standard deduction:

For 2026, Montana brackets for single filers are:

• $0 to $47,500: 4.7%
• Over $47,500: 5.65%

Married filing jointly thresholds are $95,000 and head of household thresholds are $71,250 before the 5.65% rate applies.

Montana taxable income in this calculator

Montana taxable income equals federally taxable wages after the 2026 federal standard deduction ($16,100 single). This differs from states like Nebraska that apply their own state standard deduction on gross wages after pre-tax contributions.

Worked example: $65,000 salary, single, biweekly, 5% 401(k)

Consider a single Montana employee earning $65,000 per year, paid biweekly, contributing 5% to a traditional 401(k), with no dependents or health premium deductions:

1. Pre-tax 401(k): $65,000 x 5% = $3,250 per year
2. Gross after pre-tax: $65,000 - $3,250 = $61,750
3. Federal taxable income: $61,750 - $16,100 (federal standard deduction) = $45,650
4. Montana state tax: $45,650 x 4.7% = $2,145.55 per year (all income falls in the first bracket)
5. FICA: Social Security and Medicare on the full $65,000 gross (401(k) does not reduce FICA wages)
6. Estimated net per paycheck: About $1,900.07 biweekly after all withholdings

If you expect a performance bonus on top of base salary, estimate the gross amount with our bonus calculator and add it to your annual salary before running this tool.

Montana vs. neighboring state tax burdens

Montana sits in a region with varied tax policies across the Mountain West. Compare your salary against Colorado (4.4% flat rate), Idaho (progressive rates), and Alaska (no state income tax). Running the same inputs through each state calculator reveals how relocation affects your monthly budget.

Frequently asked questions