Montana has just two income tax rates in 2026, 4.7% and 5.65%, after the top rate dropped from 5.9%. Withholding uses your Montana MW-4 filing status rather than allowances, and is rounded to the nearest dollar.
2026 tax year, verified Sources
Estimated take-home this week
$929.04
from $1,153.85 gross. You keep 81%.
2026 tax year, rules last verified November 12, 2026. An estimate, not tax advice. How we calculate
Each extra dollar you earn loses about 24¢ to taxes, but across all your pay the average is 19¢. A raise never lowers your take-home: only the dollars above a bracket line pay the higher rate.
| Annual pay | Effective | Marginal |
|---|---|---|
| $15,000 | 7.6% | 7.6% |
| $30,000 | 14.6% | 24.3% |
| $45,000 | 17.8% | 24.3% |
| $60,000 | 19.5% | 24.3% |
| $75,000 | 21.7% | 35.4% |
| $90,000 | 24.0% | 35.3% |
| $105,000 | 25.6% | 35.4% |
| $120,000 | 26.8% | 35.3% |
| $135,000 | 27.9% | 37.4% |
| $150,000 | 28.9% | 37.3% |
Same pay, W-4 and benefits; each state’s default withholding answers, no local taxes. Take-home per week:
Montana’s formula is W = A + B × (G − C). G is your gross taxable pay for the period. Your employer finds the row for your pay period and MW-4 status, takes the base amount A, and adds the rate B (4.7% or 5.65%) times the pay above the row’s starting point C. The result is rounded to the nearest dollar.
The first band is tax-free and stands in for the standard deduction. For a single filer, the 4.7% band then covers the next $47,500 a year, and everything above $63,600 is withheld at 5.65%.
Montana follows federal taxable wages, so traditional 401(k) deferrals and pre-tax health premiums reduce your Montana withholding.
| MW-4 status | 0% | 4.7% | 5.65% |
|---|---|---|---|
| Single, married filing separately, or Line 2 checked | up to $16,100 | $16,100–$63,600 | over $63,600 |
| Married filing jointly | up to $32,200 | $32,200–$127,200 | over $127,200 |
| Head of household | up to $24,150 | $24,150–$95,400 | over $95,400 |
Weekly, biweekly, semimonthly, monthly and daily tables use the same rates with thresholds per pay period.
Single filer, standard W-4, no benefits, paid weekly, default MW-4 answers. Montana takes $32.00 of this check (3.2% of gross).
| Line | Per week | Per year |
|---|---|---|
| Gross pay | $1,000.00 | $52,000.00 |
| Federal income tax | −$78.08 | −$4,060.16 |
| Social Security | −$62.00 | −$3,224.00 |
| Medicare | −$14.50 | −$754.00 |
| Montana income tax | −$32.00 | −$1,664.00 |
| Take-home pay | $813.42 | $42,297.84 |
Single filer, standard W-4, no benefits, no local tax. Per-week amounts; annual totals account for the Social Security wage cap.
| Salary | Gross / week | Federal | FICA | Montana | Take-home / week | Per year |
|---|---|---|---|---|---|---|
| $30,000 | $576.92 | $27.31 | $44.14 | $13.00 | $492.47 | $25,608 |
| $40,000 | $769.23 | $50.38 | $58.84 | $22.00 | $638.01 | $33,177 |
| $50,000 | $961.54 | $73.46 | $73.56 | $31.00 | $783.52 | $40,743 |
| $60,000 | $1,153.85 | $96.54 | $88.27 | $40.00 | $929.04 | $48,310 |
| $75,000 | $1,442.31 | $147.50 | $110.33 | $55.00 | $1,129.48 | $58,733 |
| $100,000 | $1,923.08 | $253.27 | $147.11 | $83.00 | $1,439.70 | $74,864 |
| $150,000 | $2,884.62 | $475.65 | $220.68 | $137.00 | $2,051.29 | $106,667 |
Married filing jointly with two children on $100,000: $1,652.67 a week ($85,939 a year).
None. No Montana city or county taxes wages.
Montana has no state disability, paid family leave or employee unemployment deduction. Unemployment insurance and workers’ compensation are paid by employers.
Montana and North Dakota have a reciprocal agreement. A North Dakota resident working in Montana claims the exemption on Form MW-4, Line 5, so no Montana tax is withheld. A Montana resident working in North Dakota files Form NDW-R with that employer.
$32 for a single filer, $18 if married filing jointly, and $25 for head of household.
No. Since 2024 the MW-4 only asks for your filing status, whether you have multiple jobs or a working spouse (Line 2), and any extra amount to withhold.
Employers can add the bonus to your regular pay and run the normal formula, or withhold a flat 5% on a bonus paid separately.
Only North Dakota, once you claim the reciprocity exemption on Line 5 of your Montana MW-4. Without it, your employer withholds Montana tax.
Montana rules for the 2026 tax year, last verified November 12, 2026. Federal sources are on the methodology page.
Every state page has its own withholding formula, local taxes, payroll programs and worked examples. Compare all states.