Montana Income Tax 2026
Montana has a graduated income tax with 2 brackets, from 4.7% up to 5.65%.
Calculate my Montana take-home payTake-home pay in Montana by salary
| Salary | Federal | MT | FICA | Take-home |
|---|---|---|---|---|
| $50,000 | $3,820 | $1,593 | $3,825 | $40,762 |
| $75,000 | $7,670 | $2,877 | $5,738 | $58,716 |
| $100,000 | $13,170 | $4,289 | $7,650 | $74,891 |
| $150,000 | $24,734 | $7,114 | $11,475 | $106,677 |
| $250,000 | $51,304 | $12,764 | $15,514 | $170,418 |
Single filer, standard deduction, wages only, no other deductions. At $100,000 you keep 74.9% after all taxes, and Montana takes 4.29%.
How Montana compares
- On a $100,000 salary, a single filer in Montana takes home $74,891 after federal tax, state tax and FICA — 35th of 51 states and DC. The median state leaves $75,488.
- State income tax takes $4,289 (4.29% of gross) at that salary.
- The state marginal rate is 4.7% at $50,000, 5.65% at $100,000 and 5.65% at $250,000.
- A $10,000 401(k) contribution at $100,000 lowers your combined income tax by about $2,765 ($2,200 federal and $565 state).
- A married couple filing jointly with $200,000 of wages keeps about $150,743.
Montana tax brackets
Single filers
| Taxable income over | Rate |
|---|---|
| $0 | 4.7% |
| $47,500 | 5.65% |
Married filing jointly
| Taxable income over | Rate |
|---|---|
| $0 | 4.7% |
| $95,000 | 5.65% |
- Standard deduction
- $16,100 single / $32,200 joint
Montana income tax: common questions
Does Montana tax wages?
Yes. Montana has a graduated income tax with 2 brackets, from 4.7% up to 5.65%.
How much state income tax will I pay on $100,000 in Montana?
About $4,289 for a single filer using the standard deduction and no other deductions. Your own figure depends on your filing status, deductions and credits — use the calculator for a personal estimate.
Does Montana have a standard deduction or personal exemption?
Standard deduction: $16,100 single / $32,200 joint.
Where do these Montana numbers come from?
Rates and deductions come from Tax Foundation, 2026 State Individual Income Tax Rates and Brackets (Feb 2026 snapshot), updated for 2026 legislation in GA, SC, WV, UT and AR, updated where a state changed its law later and checked against the state's own revenue department where we could reach it. The section above lists exactly what each estimate leaves out.
What these Montana figures leave out
- Assumes no dependents, no itemized deductions and no state tax credits beyond those described.
- Head-of-household filers use the single-filer schedule and deduction, except where a state's own head-of-household amount is built in.
- State payroll taxes such as disability or family-leave insurance are not included.
- Reflects state law as we last reviewed it (September 2026). Legislatures sometimes change rates mid-year, so confirm the current figures with your state's revenue department before relying on them.
Checked against official sources (September 2026): the 2026 tax table: 4.7% up to $47,500 (single) or $95,000 (joint), then 5.65% — Montana Department of Revenue. Official source.
Rates and deductions come from Tax Foundation, 2026 State Individual Income Tax Rates and Brackets (Feb 2026 snapshot), updated for 2026 legislation in GA, SC, WV, UT and AR (source). See our methodology for how every figure is calculated.
Estimate only. This is an approximation, not a tax return or professional advice, and may not reflect every credit, exemption, or recent law change. Verify with your tax authority or a qualified professional before relying on it. Read the full disclaimer or see how it's calculated.