Montana Paycheck Calculator
Montana taxes income at 4.7% up to $47,500 and 5.65% above for 2026 (single), after the federal standard deduction of $16,100.
For 2026 Montana has two income tax rates. A single filer pays 4.7% on the first $47,500 of taxable income and 5.65% on the rest. The 4.7% band runs to $71,250 for heads of household and to $95,000 for married couples filing jointly and surviving spouses. Montana taxable income starts from federal taxable income, so the standard deduction is the federal one: $16,100 single, $24,150 head of household and $32,200 for married couples filing jointly. Montana has no personal exemption.
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Estimates only. Not tax or legal advice. Consult a tax professional for accuracy.
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Montana Paycheck FAQ
Common questions about paychecks and taxes in Montana
What is the Montana state income tax rate for 2026?
4.7% on the first $47,500 of taxable income and 5.65% above it, for single filers and married couples filing separately. Heads of household pay 4.7% up to $71,250, and married couples filing jointly and surviving spouses up to $95,000. These brackets come from House Bill 337, passed in 2025, and apply to tax year 2026.
Is Montana lowering its income tax?
Yes. House Bill 337 lowered the top rate and widened the 4.7% bracket for 2026, and it has already set 2027: 4.7% on the first $65,000 of taxable income for single filers ($97,500 for heads of household, $130,000 for married couples filing jointly) and 5.4% above.
What is Montana's standard deduction?
The federal standard deduction, because Montana taxable income starts from federal taxable income: for 2026, $16,100 for single filers and married filing separately, $24,150 for heads of household and $32,200 for married couples filing jointly and surviving spouses. You use the same kind of deduction on your Montana return as on your federal one, so if you itemize federally you itemize for Montana too. Montana has no personal exemption.
How much Montana tax is withheld from a bonus?
If the bonus is paid separately from your regular wages, your employer can withhold a flat 5% of it, or add it to your regular wages for the current or last pay period and withhold on the total.
What does this calculator leave out for Montana?
Montana starts from federal taxable income, so pre-tax deductions and other federal deductions lower your Montana taxable income; the calculator starts from gross wages less the federal standard deduction. It also leaves out the lower 3% and 4.1% rates on net long-term capital gains, the extra federal standard deduction at 65 or older or blind, the Montana earned income tax credit (20% of the federal credit from 2026) and other credits.