Montana charges 4.7-5.65% state income tax. Use the employer cost calculator pre-loaded with Montana rates.
Open Employer Cost Calculator →Employers in Montana must withhold and remit the graduated state income tax, plus handle their share of FICA, FUTA, and Montana's state unemployment insurance. The total cost to employ someone at a $75,000 salary in Montana is typically 10-15% above the gross salary, covering the employer's payroll tax share, SUI, workers' comp, and benefits. This calculator breaks down the full employer cost with Montana's specific tax rates.
Montana uses a graduated income tax with brackets ranging from 4.7-5.65%. Lower income is taxed at lower rates, with the 5.65% top rate applying only to income in the highest bracket. This progressive structure means your effective state tax rate is always lower than the top marginal rate. Montana does not have local income taxes, so the state graduated rate is the total state-level income tax burden.
The table below shows what you actually keep at five salary levels in Montana, accounting for federal tax, FICA, and Montana's graduated (4.7-5.65%) state tax.
See how Montana compares to other West states. Each link takes you to the employer cost calculator landing page for that state.
For a comprehensive breakdown of Montana’s tax structure, salary comparisons, cost-of-living analysis, and more, visit the full Montana take-home pay page.