Montana Income Tax Calculator 2026
Calculate your Montana state income tax for 2026. Montana uses a progressive tax system with rates up to 5.7%.
Written and reviewed by Konstantin Iakovlev · Methodology · Updated · Source: IRS Rev Proc 2025-32 and Montana state revenue department publications.
About this tool: the calculator below estimates your federal income tax (IRS 2026 brackets, $16,100 single / $32,200 joint standard deduction). Montana adds its own state income tax on top — see the Montana brackets and rules in the body below. Total burden = federal + Montana state.
Federal Income Tax
$7,670.00
Effective Tax Rate
10.23%
Marginal Tax Rate
22%
FICA (SS + Medicare)
$5,737.50
Total Tax Burden
$13,407.50
After-Tax Income
$61,592.50
Tax Calculation Breakdown
| Gross Income | $75,000.00 |
| Above-the-Line Deductions | - $0.00 |
| Adjusted Gross Income (AGI) | $75,000.00 |
| Standard Deduction | - $16,100.00 |
| Taxable Income | $58,900.00 |
| 10% on $0.00 – $12,400.00 | $1,240.00 |
| 12% on $12,400.00 – $50,400.00 | $4,560.00 |
| 22% on $50,400.00 – $105,700.00 | $1,870.00 |
| Federal Income Tax (before credits) | $7,670.00 |
| Federal Income Tax (after credits) | $7,670.00 |
| Social Security (6.2%) | $4,650.00 |
| Medicare (1.45%) | $1,087.50 |
| Total FICA | $5,737.50 |
| Total Tax | $13,407.50 |
| After-Tax Annual Income | $61,592.50 |
| Monthly Take-Home | $5,132.71 |
Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.
How does income tax work in Montana?
Montana has no state sales tax, making it one of only five states without one. The state relies more heavily on income tax and property tax revenue. Some resort areas levy a local resort tax on specific goods and services.
Montana simplified its income tax to two brackets effective 2024: 4.7% on the first $20,500 (single) and 5.9% on income above that. The state conforms to the federal standard deduction.
Montana does not have a separate tipped minimum wage — all employees receive the full state minimum of $10.85/hr, which is adjusted annually for inflation.
Montana has no local income taxes, disability insurance, paid family leave, estate tax, or inheritance tax. Property taxes average approximately 0.74%.
Montana provides a pension and annuity exclusion of up to $5,500 for qualifying retirement income. The state exempts Social Security benefits for filers below certain income thresholds.
Montana Income Tax Brackets 2026 (Single Filer)
| Taxable Income | Rate |
|---|---|
| $0 – $47,500 | 4.7% |
| Over $47,501 | 5.65% |
Montana Tax Snapshot
| Sales Tax | 0% |
| Avg. Property Tax | 0.74% |
| Minimum Wage | $10.85/hr |
Montana income tax — frequently asked questions
What are the federal income tax brackets for 2026?
The 2026 federal tax brackets for single filers are: 10% on income up to $12,400, 12% up to $50,400, 22% up to $105,700, 24% up to $201,775, 32% up to $256,225, 35% up to $640,600, and 37% on income above $640,600. Married filing jointly brackets are roughly double these thresholds.
What is the standard deduction for 2026?
The 2026 standard deduction is $16,100 for single filers, $32,200 for married filing jointly, $16,100 for married filing separately, and $24,150 for head of household. Taxpayers aged 65 or older receive an additional amount of $2,050 (single) or $1,650 (married).
How is the effective tax rate different from the marginal tax rate?
Your marginal tax rate is the rate applied to your last dollar of taxable income, which is your highest bracket. Your effective tax rate is your total tax divided by your total income, reflecting the blended average across all brackets. The effective rate is always lower than the marginal rate because lower portions of income are taxed at lower rates.
Does Social Security count as taxable income?
Social Security benefits may be partially taxable depending on your combined income. If your combined income (AGI plus non-taxable interest plus half of Social Security) exceeds $25,000 for single filers or $32,000 for married filing jointly, up to 50% of benefits are taxable. Above $34,000 (single) or $44,000 (married), up to 85% may be taxable.
Can I reduce my taxable income with 401(k) contributions?
Yes. Traditional 401(k) contributions are made pre-tax and directly reduce your taxable income for the year. In 2026, you can contribute up to $24,500, or $32,500 if you are 50 or older. However, Roth 401(k) contributions do not reduce current taxable income because they are made with after-tax dollars.
What is FICA tax and how much do I pay?
FICA consists of Social Security tax (6.2% on wages up to $184,500 in 2026) and Medicare tax (1.45% on all wages, plus 0.9% on wages above $200,000 for single filers). Your employer pays a matching amount. FICA is separate from federal income tax and is not reduced by deductions.
Do I need to file a federal tax return?
You must file if your gross income exceeds the standard deduction for your filing status ($16,100 for single filers in 2026). You may also need to file if you had self-employment income over $400, owe special taxes, or received advance premium tax credits. Even if not required, filing may get you a refund if taxes were withheld.