How Montana taxes your paycheck
Montana uses progressive brackets from 4.7% to 5.65%, after a standard deduction of $16,100 (single) / $32,200 (married). Top rate cut to 5.65% for 2026; 5.4% in 2027.
Federal deductions are the same everywhere: income tax on earnings above the $16,100 standard deduction (single) using the 2026 brackets, 6.2% Social Security on the first $184,500, and 1.45% Medicare on everything.
Montana take-home pay examples
Single filer, paid every two weeks, standard deduction, no pre-tax benefits:
| Salary | Federal tax | FICA | Montana tax | Take-home / year | Per paycheck | Effective rate |
|---|---|---|---|---|---|---|
| $40,000 | $2,620 | $3,060 | $1,123 | $33,197 | $1,276.80 | 17% |
| $60,000 | $5,020 | $4,590 | $2,063 | $48,327 | $1,858.72 | 19.5% |
| $80,000 | $8,770 | $6,120 | $3,159 | $61,951 | $2,382.73 | 22.6% |
| $100,000 | $13,170 | $7,650 | $4,289 | $74,891 | $2,880.42 | 25.1% |
| $150,000 | $24,734 | $11,475 | $7,114 | $106,677 | $4,102.96 | 28.9% |
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Estimate for W-2 employees using the standard deduction. Doesn't include tax credits, itemised deductions or local taxes unless entered. Updated for tax year 2026.