How Montana taxes your paycheck in 2026
Montana uses graduated marginal brackets for 2026 - 4.7% up to $47,500, then 5.65% for single filers. You pay each rate only on the income that falls inside that bracket, after subtracting the $16,100 standard deduction. On a $60,000 salary with 5% to a pre-tax 401(k), 2026 Montana income tax works out to about $1,922.30 for a single filer.
| Montana at a glance (2026, single filer) | Value |
|---|---|
| State income tax | 4.7% up to $47,500, then 5.65% |
| Standard deduction | $16,100 |
| State tax on a $60,000 salary (5% 401(k)) | $1,922.30 |
| Take-home on $60,000 (biweekly paycheck) | $1,762.60 |
2026 Montana tax brackets (single filer)
Marginal rates applied to Montana taxable income - wages after the $16,100 standard deduction. Each rate applies only to income within its band.
| Montana taxable income | Marginal rate |
|---|---|
| $0 to $47,500 | 4.7% |
| Over $47,500 | 5.65% |
Federal taxes are the same in every state
Wherever you live, 2026 federal income tax uses the same brackets (10% to 37%, after the standard deduction for your filing status - $16,100 for single filers), the same federal Child Tax Credit, and the same FICA rules: 6.2% Social Security on wages up to $184,500, plus 1.45% Medicare on all wages and an extra 0.9% above $200,000 ($250,000 for joint filers). State tax is what makes a Montana paycheck different from one across the state line.
What this estimate leaves out
Worked examples on this page use the calculator's defaults: a single filer with no dependents taking the standard deduction for 2026. The calculator itself also supports married filing jointly, head of household and children under 17, including the federal Child Tax Credit and Montana's dependent breaks where they apply. Health insurance premiums, HSA contributions, itemized deductions and other credits are not modeled.