Estimate your combined federal and Montana state income tax liability in under 60 seconds. Updated with the latest 2026 brackets and FICA rates.
Montana has 2 income tax brackets with a top rate of 5.9% for the 2026 tax year. Montana has no sales tax, joining Alaska, Delaware, New Hampshire, and Oregon. The state simplified its income tax to two brackets in 2024. Montana also has no local option sales taxes.
Understanding how your state tax brackets work is essential for effective tax planning. The progressive bracket structure means you pay each rate only on income within that bracket, not on your entire income.
| Tax Rate | Income Range | Tax Owed |
|---|---|---|
| 4.7% | $0 – $20,500 | 4.7% of taxable income |
| 5.9% | Above $20,500 | $964 + 5.9% of amount over $20,500 |
Source: Montana Department of Revenue. Brackets shown for single filers, tax year 2025 (filed in 2026).
Sales Tax: Montana has a state sales tax rate of None (0%).
Federal income tax applies to all U.S. taxpayers regardless of state. Below are the 2026 federal brackets for single filers.
| Rate | Single Filer Income Range |
|---|---|
| 10% | $0 – $11,925 |
| 12% | $11,925 – $48,475 |
| 22% | $48,475 – $103,350 |
| 24% | $103,350 – $197,300 |
| 32% | $197,300 – $250,525 |
| 35% | $250,525 – $626,350 |
| 37% | Above $626,350 |
The standard deduction for single filers in 2026 is $15,000. Married filing jointly: $30,000.
Source: IRS Revenue Procedure for tax year 2025.
FICA taxes fund Social Security and Medicare and are calculated on gross wages before deductions.
| Tax | Rate | Wage Base |
|---|---|---|
| Social Security | 6.2% | First $168,600 |
| Medicare | 1.45% | All wages |
| Additional Medicare | 0.9% | Wages above $200,000 |
The minimum wage in Montana for 2026 is $10.55/hour. At full-time hours (40 hours/week, 52 weeks), this equals approximately $21,944/year before taxes.
The median household income in Montana is approximately $66,000, based on U.S. Census Bureau American Community Survey estimates. Use the calculator above to see how your income compares after federal and state taxes.
Starting a business in Montana requires filing Articles of Organization with the state. Here are the key costs:
| Item | Cost | Frequency |
|---|---|---|
| Articles of Organization Filing | $70 | One-time |
| Annual report | $20 | Yearly |
| Registered Agent | $0 – $150/yr | Yearly |
Source: Montana Secretary of State.
Northwest Registered Agent handles all the paperwork for $39 + state fee. Includes free registered agent service for the first year, privacy protection, and compliance alerts.
Start My Montana LLCMontana has 2 income tax brackets with a top rate of 5.9% for the 2026 tax year (single filers).
No, Montana does not have a state sales tax.
The minimum wage in Montana for 2026 is $10.55 per hour.
Filing an LLC in Montana costs $70 for the Articles of Organization. Annual report: $20.
The median household income in Montana is approximately $66,000, based on U.S. Census Bureau estimates.