Montana Small Business Tax Strategies (2026)
From Billings, Missoula, and Bozeman, Montana business owners face a 4.7% flat income tax. This 2026 guide covers the rates, the strategies, and the state-specific moves that actually cut your bill.
Montana Tax Quick Facts (2026)
Tax Overview for Montana Business Owners
Montana offers no sales tax and a flat income tax rate — a competitive combination for business owners.
Montana has no sales tax and moved to a flat 4.7% income tax rate. This combination makes it attractive for consumer-facing businesses and business owners alike.
Montana State-Specific Tax Details (2026)
Pass-Through Entity (PTE) Tax Election
Montana offers an elective Pass-Through Entity Tax (PTET) under SB 554 (enacted 2023) for partnerships and S corporations. For tax year 2024 and later the rate is 5.9% on each affected owner's distributive share of Montana-source income. The election is made annually by a representative designated by the entity on a timely-filed Form PTE, is irrevocable, and cannot be made after the extended due date of the return. C corporations and tax-exempt owners are excluded. Affected owners (individuals, estates, trusts, and upper-tier PTEs owned by them) avoid double tax on the PTET-paid income, pushing the state tax deduction to the entity level to work around the federal SALT cap.
Local & City Income Taxes
None. Montana imposes no local, city, or county income tax, and has no state or local general sales tax. Local jurisdictions may levy narrow resort/excise/licensing taxes, but no broad local income tax applies to business or wage income.
Entity-Level & Franchise Taxes
Montana has no franchise, gross-receipts, margin, or B&O tax. C corporations pay a flat 6.75% corporate income tax (Form CIT) with a $50 minimum tax. Montana recognizes the federal S election; S corporations and partnerships file Form PTE, pass income through to owners, and are not subject to the 6.75% corporate income tax. (Any minimum filing fee specifically for S corps/partnerships could not be confirmed from a primary DOR source for 2026 — consult a Montana tax professional or the current Form PTE instructions before relying on a specific figure.)
Montana Tax Credits & Incentives
Nonrefundable credit of $750 for each new registered apprentice ($1,500 if the apprentice is a veteran). Requires application to and approval from the Montana Dept. of Labor & Industry, Workforce Services Division, and must be claimed in the year DLI approves it. Cannot be claimed in the same year as the Jobs Growth Incentive Tax Credit, and cannot be carried forward or back.
Credit equal to 50% of qualifying trades education/training expenses paid to a third party, capped at $2,000 per employee and $25,000 total per year. Employees must work (or be anticipated to work) in Montana at least six months of the year. For pass-through entities the credit is computed at the entity level and attributed to owners by ownership percentage. Claimed on Form TETC.
For 2026 Montana's top individual income tax rate is 5.65% (HB 337), while the elective PTET rate is fixed at 5.9% on Montana-source income. Because the PTET rate slightly exceeds the top personal rate (~0.25 point gap, and the personal top rate is scheduled to fall further to 5.4% in 2027), electing PTET can leave a small residual cost relative to paying at the personal level. Model whether the federal SALT-cap deduction benefit outweighs that rate gap for your specific owners before locking in the irrevocable Form PTE election by the extended due date. Consult a Montana tax professional for entity-specific modeling and current estimated-payment requirements.
Top Tax Strategies for Montana Business Owners
Montana offers a moderate tax environment. While state taxes are manageable, combining federal and state strategies can still save you thousands each year.
No sales tax advantage
Flat rate simplifies planning
S-Corp salary optimization
S-Corp Election in Montana
For Montana business owners with net income above $50,000, electing S-Corp status can save $5,000 to $20,000+ annually in self-employment taxes. As an S-Corp, you pay yourself a "reasonable salary" and take the remaining profits as distributions, which are not subject to the 15.3% self-employment tax. Keep in mind that Montana's 4.7% flat income tax still applies to both your salary and your distributions, so the S-Corp election saves you federal self-employment tax while your state planning shifts to deductions, retirement contributions.
Example: A Billings S-Corp
A Billings business owner earning $150,000 in net business income pays themselves a reasonable salary of $60,000. The remaining $90,000 in distributions avoids the 15.3% SE tax, saving $13,770 in self-employment taxes alone — on top of whatever your Montana state planning adds.
Retirement Plan Strategies for Montana
Retirement plan contributions are the single most powerful tax deduction available to Montana business owners. A Solo 401(k) allows contributions up to $69,000 in 2026 ($76,500 if you're 50+), generating tax savings of $17,000 to $24,000 at a 25-32% effective tax rate. For Montana owners, those contributions cut both your federal bill and your 4.7% flat state income tax, stacking the savings.
SALT Deduction Impact in Montana
No sales tax reduces overall SALT burden. The federal SALT (State and Local Tax) deduction cap increases from $10,000 to $40,000 in 2026, providing meaningful relief for business owners in states with income taxes.
Best Business Entities for Montana
The most popular business entity types for Montana small business owners are:
Choosing the right entity depends on your income level, growth plans, and Montana's specific tax treatment. Read our complete S-Corp vs LLC comparison guide for a detailed breakdown.
Montana Tax FAQs
What is the income tax rate in Montana?
Montana has an individual income tax rate of 4.7% flat. Montana has no sales tax and moved to a flat 4.7% income tax rate. This combination makes it attractive for consumer-facing businesses and business owners alike.
What are the best tax strategies for small businesses in Montana?
Key tax strategies for Montana business owners include: No sales tax advantage, Flat rate simplifies planning, S-Corp salary optimization. Montana offers no sales tax and a flat income tax rate — a competitive combination for business owners.
Is Montana a good state for small business taxes?
Montana offers no sales tax and a flat income tax rate — a competitive combination for business owners.
What is the corporate tax rate in Montana?
Montana's corporate tax rate is 6.75%. The sales tax rate is 0%.
How does the SALT deduction affect Montana business owners?
No sales tax reduces overall SALT burden. In 2026, the federal SALT deduction cap increases to $40,000, which benefits business owners in states with higher tax burdens.
Find Out How Much You Can Save in Montana
Our free tax savings calculator analyzes your specific situation and shows you exactly where Montana business owners are leaving money on the table.
Calculate Your Montana Tax SavingsModerate Tax States Like Montana
Montana business owners often compare their tax climate to other moderate tax states. See how the strategies shift across the line: