Montana income tax calculator 2026
Estimate your 2026 Montana state income tax. Montana has a graduated state income tax with 2 brackets from 4.7% to 5.65%. See your taxable income, marginal rate and the same income in other states.
- ๐บ๐ธ US federal & state rules
- 2026 state rates, checked against state revenue departments
- See sources
Montana state income tax for 2026
$2,876.60
3.84% of $75,000. Marginal rate 5.65%.
- State taxable income
- $58,900
- Federal income tax
- $7,670
- Federal + state
- $10,547 (14.1%)
- Monthly
- $239.72
This is an example. Enter your numbers above and press the button to see your own result.
Same income in other states
| Montana | $2,877 (3.8%) |
|---|---|
| Texas | no income tax |
| Florida | no income tax |
| California | $2,775 (3.7%) |
| New York | $3,453 (4.6%) |
| Illinois | $3,568 (4.8%) |
Montana brackets (single)
| 4.7% | $0 to $47,500 |
|---|---|
| 5.65% | over $47,500 |
- A planning estimate using Montana's standard deduction and personal exemptions or credits. Itemized deductions, state-specific credits and retirement income rules are not applied.
Show the math
| Federal taxable income | $58,900 |
|---|---|
| State taxable income | $58,900 |
| Tax from brackets | $2,876.60 |
| State tax | $2,876.60 |
What to do next
How it works
The calculator starts from your income after pre-tax contributions, takes federal taxable income as the base, subtracts Montana's standard deduction and personal exemptions where they exist, and applies a graduated state income tax with 2 brackets from 4.7% to 5.65%. Personal credits come off the tax. Montana allows a standard deduction of $16,100 for single filers and federal taxable income as the starting point.
Things to keep in mind
Montana has no local income taxes. Itemized deductions and state-specific credits are not applied, so filers with large deductions will owe less than shown.
Some Montana rules, such as high-income phase-outs or special rates on certain income, are left out of this estimate. The state revenue department's own calculator or instructions have the full detail.
Sources
Rules applied as of 2026-01-01. See the sources below for details.
- Tax Foundation, State Individual Income Tax Rates and Brackets, 2026Checked 2026-10-19
Frequently asked questions
What is the Montana income tax rate?
Montana uses 2 brackets from 4.7% to 5.65%. Only income inside each bracket is taxed at that bracket's rate.
What is the Montana standard deduction?
$16,100 for single filers in 2026 and $32,200 for married couples filing jointly.
Does Montana tax Social Security or retirement income?
This calculator is for wages and ordinary income. Montana's treatment of Social Security, pensions and retirement account withdrawals follows separate rules that are not applied here.
Are there local income taxes in Montana?
No. Montana does not allow cities or counties to tax wages.