Montana Paycheck Calculator (2025-2026)

Quick TL;DR

• State income tax: Progressive—4.7% then 5.9% on ordinary income (with filing-status thresholds). Long-term capital gains have reduced rates.
• Local income tax: None on wages (but some resort taxes on tourism purchases in select towns).
• State-wide sales tax: 0% (one of five states with no general sales tax).
• Average take-home (Single):
  • $50k salary: ≈ $40.6k/yr (~$3,383/mo)
  • $100k salary: ≈ $74.3k/yr (~$6,190/mo)
    (Assumes standard deduction, no pre-tax benefits; FICA + federal + MT.) IRS

How Taxes Your Paycheck

Federal vs. state income tax

Your Montana paycheck faces federal income tax (progressive 7-bracket system), FICA payroll taxes, and Montana state income tax. Federal brackets remain 10%–37% for 2025–2026 (inflation-indexed).

Montana calculates state taxable income starting from your federal taxable income (i.e., after the federal standard deduction or federal itemizing). Montana eliminated its separate state standard deduction and generally follows the federal base with state-specific adjustments.

FICA (Social Security & Medicare) — employee share

• Social Security: 6.2% of wages up to the annual wage base ($176,100 in 2025; $184,500 in 2026).
• Medicare: 1.45% of all wages (no cap) + 0.9% Additional Medicare Tax on wages above $200,000 (employer must withhold once an employee’s wages cross $200k in the year). IRS

Montana income tax rates (ordinary income) for 2025–2026

Montana uses two ordinary-income brackets. For single filers, 4.7% applies up to $21,100; 5.9% above that. Thresholds differ for HOH and MFJ (e.g., MFJ 4.7% up to $42,200). These rates remain in effect for 2025 and 2026.

Long-term capital gains receive preferential 3.0%/4.1% state rates (with thresholds varying by filing status).

Deductions, exemptions, and credits that commonly affect take-home

• Federal standard deduction (Single): $15,750 (2025) and $16,100 (2026); other filing statuses scale up accordingly. Seniors may also receive extra federal deductions.
• Montana base rules: State taxable income begins with federal taxable income; Montana no longer has a separate state standard deduction.
• Montana 65+ exemption & MSA deduction: Frequently used state adjustments include a 65-and-over exemption ($5,660) and Medical Savings Account deduction ($4,600) (amounts per the state’s 2025 table). revenue.mt.gov
• Montana Earned Income Tax Credit (EITC): Historically 10% of the federal EITC and refundable; 2025 legislation increased the match to 20% (phasing as enacted). Check your eligibility if you have low-to-moderate earnings.

Local/city add-ons

No local income tax on wages. However, certain resort communities (e.g., Whitefish, Red Lodge, Big Sky, West Yellowstone) levy resort taxes on tourism-related purchases (not on wages).

Take-Home Pay Examples

Assumptions (Single filer, 2026): No pre-tax benefits, standard federal deduction ($16,100), no itemizing, only wage income; FICA at employee rates; Montana ordinary income rates per filing status table; no local wage tax. Numbers are estimates; your results vary with benefits (health, HSA/FSA, 401(k)), allowances, and credits.

Estimated annual results (with monthly net shown in parentheses)

Method sketch:

1. Federal taxable income = Gross − federal standard deduction (2026). 2) Apply 2026 federal bracket layers. 3) Add employee FICA: 6.2% Social Security (under the wage base) + 1.45% Medicare. 4) State tax = Montana ordinary-income table by filing status using the state thresholds.

Note: Results change if you contribute pre-tax to health, HSA, FSA, or 401(k); claim credits (e.g., EITC, Child Tax Credit); or have other income/deductions.

Withholding & W-4/W-4-equivalent tips

• Federal Form W-4:
  • Use Step 2 if you have multiple jobs or a working spouse.
  • Step 3 for dependents/credits; Step 4(a)/(b) for other income or deductions; Step 4(c) to add extra per-paycheck withholding to avoid underpayment.
  • Revisit when your life changes (new job, raise, marriage, childcare).
• Montana state withholding:
  • Complete Montana Form MW-4 for your employer so state withholding reflects your situation (allowances/exemptions where applicable). revenue.mt.gov
  • If you expect sizable non-wage income (contracting, interest, capital gains), consider extra state withholding or quarterly estimates.
• How to avoid under-withholding:
  • Align W-4 Step 2 with all jobs; increase withholding via Step 4(c) if you underpaid last year.
  • Update MW-4 when your dependents or deductions change.
  • Aim to owe or receive a small refund at filing—fine-tune after your first few paychecks of the year.

Minimum wage & overtime basics (2025–2026)

• Statewide minimum wage: $10.55 (2025) and $10.85 (effective Jan 1, 2026). Businesses under certain size thresholds and not covered by federal law may have different rules; see state guidance.
• Overtime: Non-exempt workers earn 1.5× their regular rate for hours over 40 in a workweek (federal FLSA rules apply unless a narrower state exception).

Sales tax snapshot

• State rate: 0% (Montana has no general state-wide sales tax).
• Local: Some resort communities (e.g., Whitefish, Big Sky, Red Lodge, West Yellowstone) levy 3%–4% resort taxes on lodging, prepared food, alcohol, and certain retail/luxury items—affects spending, not wage withholding.
• Lodging taxes (state-wide): Overnight stays face separate state-wide lodging taxes totalling 8% (4% lodging use + 4% lodging sales).

Employer corner (brief)

• Montana SUTA (state unemployment insurance):
  • Taxable wage base: $45,100 for 2025 (80% of the state’s average annual wage; updated annually).
  • Rates: New-employer SUTA typically ~1%–2% (varies by industry). Experienced-employer rates generally ~0.00%–6.12% depending on reserve ratio/experience.
  • Cadence: UI and withholding quarterly returns/remittances; frequency can vary by account assignment and liability.
• Paid family leave / state disability: Montana does not mandate a statewide paid family leave or SDI tax program; employers often rely on federal FMLA and voluntary benefits.
• New hire: Report new hires to the state within 20 days (best practice for payroll setup and compliance).

Practical guidance to maximize take-home

• Use pre-tax benefits: Health premiums, HSA/FSA, and 401(k) deferrals reduce federal and Montana taxable income; FSA/HSA reduce FICA exposure (HSA via cafeteria plan).
• Map your brackets: If a raise pushes you across a Montana or federal threshold, adjust W-4 Step 4(c) and MW-4 so you’re not surprised at filing time.
• Check the FICA caps: Higher earners will hit the Social Security wage base sooner in 2026 ($184,500), changing net pay later in the year. Social Security
• If you’re eligible for EITC/CTC: Model scenarios early; Montana’s refundable EITC (state match of your federal credit) can significantly change your net paycheck via lower withholding or larger refunds. revenue.mt.gov

FAQs:

Final Note on Estimates

The calculations above are illustrative and assume no pre-tax benefits, credits, or other adjustments. Your actual take-home can differ based on health premiums, retirement contributions, bonuses, equity, secondary jobs, or credit eligibility. Use a detailed calculator with your pay frequency and deductions to fine-tune your numbers.

Prepared for 2025–2026 with current Montana and federal references on rates, thresholds, and structures.