Montana Income Tax Brackets 2025
Montana uses a progressive income tax system with 2 brackets.
State Tax
5.9%
Top marginal rate
COL Index
107
Above national avg
Median Income
$66,341
Household
Brackets
2
Progressive
Montana Tax Brackets
| Income Range | Marginal Rate |
|---|---|
| $0 — $20,500 | 4.70% |
| $20,500 — and above | 5.90% |
Montana State Tax at Different Income Levels
| Gross Income | State Tax | Effective Rate |
|---|---|---|
| $50,000 | $2,704 | 5.41% |
| $75,000 | $4,179 | 5.57% |
| $100,000 | $5,654 | 5.65% |
| $150,000 | $8,604 | 5.74% |
| $200,000 | $11,554 | 5.78% |
| $300,000 | $17,454 | 5.82% |
Calculate Your Exact Montana Taxes
See your full federal + state + FICA breakdown with our interactive calculator.
Open Tax CalculatorCompare With Other States
AlabamaAlaskaArizonaArkansasCaliforniaColoradoConnecticutDelawareDistrict of ColumbiaFloridaGeorgiaHawaii
No income tax states