Montana tax guide
Montana’s tax system is designed with a progressive structure, meaning rates increase as income levels rise. While the top rate of 5.90% may seem high compared to neighbors like North Dakota, the state's specific provision allowing for a federal income tax deduction often mitigates the overall tax burden for many residents.
Key tax highlights
Payroll
- Montana's progressive system features two distinct tax brackets to determine annual liability.
- The top marginal income tax rate is 5.90% for income above the established threshold.
- Employers are required to withhold state income tax based on the Montana Department of Revenue's specific withholding tables.
Local taxes
- Montana does not impose a general local or municipal income tax on top of the state rate.
- Residents may be subject to various local-option taxes, such as resort taxes in specific communities, but these do not reduce take-home pay via payroll withholding.
Deductions
- One of the most significant features of Montana tax law is the ability to deduct federal income tax paid from state taxable income.
- Standard deductions are available for state filers, mirroring portions of the federal tax code adjustments.
Salary examples
Pre-computed take-home estimates at common salary levels. For example, a $75,000 salary in Montana yields about $57,806 after all deductions (77.1% take-home rate). Use the calculator above with your actual salary to see your specific estimate.
| Salary | Federal | State | FICA | Take-Home | Rate |
|---|---|---|---|---|---|
| $50,000 | $3,820 | $2,374 | $3,825 | $39,981 | 80.0% |
| $75,000 | $7,670 | $3,786 | $5,738 | $57,806 | 77.1% |
| $100,000 | $13,170 | $5,199 | $7,650 | $73,981 | 74.0% |
| $150,000 | $24,734 | $8,024 | $11,475 | $105,767 | 70.5% |
Neighboring states
How Montana compares with border states on income tax. At a $75,000 salary, a Montana worker pays $3,786 in state tax annually.
| State | Tax type | Top rate |
|---|---|---|
| South Dakota | no tax | No state income tax |
| Wyoming | no tax | No state income tax |
| Idaho | flat tax | 5.30% |
| North Dakota | progressive | 2.50% |
Tax tips for Montana
- Keep detailed records of your total federal income tax paid during the year, as this is a key component in reducing your state taxable income.
- Review your W-4 equivalent for Montana to ensure the correct amount is being withheld, especially if your income fluctuates across the two-bracket threshold.
- Check the Montana Department of Revenue website for annual inflation adjustments to tax brackets, which can shift your effective tax rate from year to year.
Did you know?
- •Montana is one of the few states that provides a significant state-level deduction for federal income taxes paid.
- •Unlike its western neighbor Idaho, which uses a flat-tax system, Montana maintains a progressive tax model.
Filing guidance
When filing your Montana return, use Form 2 to report your income. You will need your federal Form 1040 to accurately calculate the federal income tax deduction, which is a critical step in finalizing your Montana state liability. Ensure all W-2 income is reconciled against state withholding statements to prevent processing delays with the Montana Department of Revenue.
Relocation context
Comparing Montana with nearby states can reveal whether paycheck differences are driven by state tax, local tax, or payroll deductions.