Quick Answer
Montana state income tax ranges from 1% to 6.75% based on income level. For 2026, a single filer earning $50,000 pays approximately $1,685 in Montana state tax (3.37% effective rate), while someone earning $75,000 pays about $3,045 (4.06% effective rate).
Best Answer
Sarah Chen, Payroll Tax Analyst
Best for W-2 employees who want to understand their Montana paycheck deductions and effective tax rates
How Montana's graduated tax system works
Montana uses a graduated income tax system with rates from 1% to 6.75%, similar to the federal system where higher income gets taxed at higher rates. Unlike states with flat taxes, your Montana tax rate depends on your total income level.
For 2026, Montana's tax brackets for single filers are:
According to the Montana Department of Revenue, married filing jointly filers get double these bracket amounts.
Example: $50,000 salary calculation
Let's calculate Montana state tax for someone earning $50,000:
Total Montana tax: $2,800 (5.6% effective rate)
However, Montana allows a standard deduction of $5,220 for single filers in 2026, reducing taxable income to $44,780. The actual tax on $44,780 is approximately $1,685 (3.37% of gross income).
How this affects your paycheck
If you earn $50,000 annually in Montana, your biweekly paycheck (26 pay periods) will have approximately $65 withheld for Montana state tax ($1,685 ÷ 26).
Combined with federal taxes, FICA, and other deductions, your take-home pay breakdown looks like:
Key factors that affect your Montana tax
What you should do
Use our paycheck calculator to see exactly how Montana state tax affects your specific situation. Input your salary, filing status, and deductions to get precise withholding amounts for budgeting.
Key takeaway: Montana state tax ranges from 1% to 6.75%, but after the standard deduction, most middle-income earners pay an effective rate of 3-5% on their gross income.
*Sources: [Montana Department of Revenue](https://mtrevenue.gov/taxes/individual-income-tax/), [IRS Publication 17](https://www.irs.gov/pub/irs-pdf/p17.pdf)*
Key Takeaway: Montana state tax ranges from 1% to 6.75%, but with the standard deduction, a $50,000 earner pays about 3.37% effective rate or $65 per biweekly paycheck.
Montana state tax by income level (2026, single filer, after standard deduction)
| Annual Income | Montana Tax Owed | Effective Rate | Monthly Withholding |
|---|---|---|---|
| $35,000 | $925 | 2.64% | $77 |
| $50,000 | $1,685 | 3.37% | $140 |
| $75,000 | $3,045 | 4.06% | $254 |
| $100,000 | $4,720 | 4.72% | $393 |
| $150,000 | $8,095 | 5.40% | $675 |
More Perspectives
Sarah Chen, Payroll Tax Analyst
Best for people who moved to or from Montana and need to understand tax implications
Moving to Montana: What changes for your taxes
If you're relocating to Montana, you'll need to understand how this affects your overall tax burden compared to your previous state.
Montana has NO state sales tax, which partially offsets the income tax burden. According to the Tax Foundation, Montana ranks 6th best for overall state tax burden when considering income, property, and sales taxes combined.
Part-year resident rules
If you moved to Montana mid-year, you'll file as a part-year resident and only pay Montana tax on income earned while living in Montana. You'll need to:
1. Prorate your Montana standard deduction based on months of residency
2. Track income by state - keep detailed records of when income was earned
3. Potentially pay tax to both states - though Montana provides credits for taxes paid to other states
Comparing Montana to other states
Here's how Montana compares to neighboring states for a $60,000 salary:
Key differences for new residents
Key takeaway: Montana's income tax is moderate compared to high-tax states, but the lack of sales tax makes the overall burden more reasonable for most families.
*Sources: [Montana Department of Revenue](https://mtrevenue.gov/taxes/individual-income-tax/), [Tax Foundation State Rankings](https://taxfoundation.org/state-tax-rankings/)*
Key Takeaway: New Montana residents benefit from no sales tax but pay 1-6.75% income tax, with most middle earners seeing a 3-5% effective rate on their paychecks.
Sources
- Montana Department of Revenue — Official Montana income tax rates and brackets
- IRS Publication 17 — Your Federal Income Tax guide for state tax interaction
Reviewed by Sarah Chen, Payroll Tax Analyst on February 28, 2026
This content is for educational purposes only and is not a substitute for professional tax advice. Consult a qualified tax professional for advice specific to your situation.