How to Start an LLC in Montana: Step-by-Step Guide (2026)

Montana is one of the most underrated states for small business formation. A $35 filing fee, no sales tax, no franchise tax, and a $15 annual report — the numbers are genuinely hard to beat in 2026. Whether you’re a Montana resident launching a local business or an investor exploring a favorable holding structure, knowing how to start an LLC in Montana is a practical skill that pays off quickly.

This guide walks you through the entire Montana LLC formation process, step by step, with exact fees, deadlines, and pitfalls. If you’d prefer a hands-off approach, ZenBusiness starts at $0 plus the $35 state fee and handles the paperwork for you — including a free first year of registered agent service. But if you want to do it yourself, Montana’s process is genuinely approachable. Let’s go through it in detail.

Why Form an LLC in Montana in 2026?

Before diving into the mechanics, it helps to understand why Montana LLC formation is worth considering:

No state sales tax. Montana is one of only five U.S. states with no sales tax, alongside Alaska, Delaware, New Hampshire, and Oregon. For businesses selling physical products, this is a meaningful operational advantage.
Low filing fee. At $35, Montana’s Articles of Organization fee is among the lowest nationally. Compare that to California ($70 filing fee plus an $800/year minimum franchise tax) or Texas ($300 filing fee).
No franchise tax. Montana does not charge a separate franchise or privilege tax on LLCs — a distinction that saves hundreds of dollars per year compared to several high-demand formation states.
Minimal annual compliance cost. The annual report fee is just $15 per year, due April 15.
Pass-through taxation by default. Like all LLCs, a Montana LLC’s profits flow through to owners’ personal returns, avoiding corporate double-taxation.

That said, how to start an LLC in Montana is only part of the analysis. If you’re based in another state and operating your business there, you may also need to register as a foreign LLC in your home state, which adds fees and paperwork. Know where your business actually operates before choosing a formation state.

Step-by-Step: How to Start an LLC in Montana

Step 1: Choose a Business Name

Your Montana LLC name must comply with specific requirements:

It must include “Limited Liability Company,” “LLC,” or “L.L.C.”
It must be distinguishable from all other registered entities in Montana
It cannot imply government affiliation (e.g., “Federal,” “Treasury,” “FBI”)
Restricted words like “Bank,” “Insurance,” or “Trust” require additional licensing approvals

Search for name availability through the Montana Secretary of State’s business name search portal. I’d also recommend spending five minutes checking the USPTO trademark database — name conflicts at the federal level can become expensive legal problems, and a quick search now costs nothing.

If your preferred name is available but you’re not ready to file, Montana allows a 120-day name reservation for $10.

Step 2: Appoint a Montana Registered Agent

Every Montana LLC must designate a registered agent — an individual or company with a physical Montana street address (not a P.O. box) who is available during normal business hours to receive legal documents, tax notices, and official government correspondence.

You can serve as your own registered agent if you have a Montana physical address and can reliably be present during business hours. Most business owners use a professional service because it keeps their home address out of public records and ensures no critical documents are missed.

Here’s how the top services compare on registered agent pricing for Montana:

ZenBusiness: Registered agent service included free in Year 1 on all plans, then $99/year at renewal.
Northwest Registered Agent: $125/year standalone. Known for superior privacy practices and responsive support.
LegalZoom: $299/year standalone registered agent — the most expensive option of the three by a wide margin.

For a full explanation of what a registered agent does and when you need a professional, see our guide on what is a registered agent.

Step 3: File the Articles of Organization

The Articles of Organization is the legal document that officially creates your Montana LLC. You file this with the Montana Secretary of State.

Filing fees and options:

Filing Method	Fee	Processing Time
Online (sos.mt.gov)	$35	3–5 business days
By mail	$35	2–3 weeks
Expedited (via formation service)	$35 + service fee	1–3 business days (varies)

What to include in your Articles of Organization:

LLC name and principal office address
Registered agent’s name and physical Montana address
Management structure: member-managed or manager-managed
Name(s) and address(es) of organizer(s)
Effective date (defaults to the filing date if left blank)

The Montana Secretary of State’s online portal is clean and functional — most filings go through without issue. If you’d rather outsource this, ZenBusiness (from $0 + $35 state fee) or LegalZoom can file on your behalf and handle document delivery.

Step 4: Draft an Operating Agreement

Montana does not legally require a written operating agreement — but this is one of those cases where the law and sound business judgment diverge sharply.

In my experience, the single biggest risk for newly formed LLCs isn’t taxes or filing deadlines — it’s the absence of a governing document when members disagree. I’ve seen too many business owners operate for years without an operating agreement, only to face a costly dispute when a partner wants out or a creditor challenges their liability protection. Don’t be that person.

A solid operating agreement documents:

Ownership percentages and initial capital contributions
Profit and loss distribution rules
Voting thresholds for major decisions
Procedures for adding or removing members
What happens upon a member’s death, disability, or exit

Even single-member Montana LLCs benefit from an operating agreement because it reinforces the separation between personal and business assets — which matters if you’re ever sued.

See our LLC operating agreement guide for a detailed breakdown of what to include. Some formation services include customizable templates: ZenBusiness includes one on its Pro plan ($99/year), while Northwest includes it free on all plans.

Step 5: Get an EIN from the IRS

An Employer Identification Number (EIN) is your LLC’s federal tax ID — functionally equivalent to a Social Security number for your business. You need one if:

Your LLC has more than one member
You plan to hire employees
You want to open a business bank account (most banks require it)
You elect S-Corp tax treatment

Single-member LLCs without employees aren’t technically required to have an EIN, but getting one anyway is good practice — it keeps your Social Security number out of bank account applications and vendor forms. Applications are free and take about five minutes on the IRS website.

Step 6: Check for Business Licenses and Permits

Montana does not require a general statewide business license, but depending on your industry and location, you may need:

Local business licenses from your city or county clerk’s office
Professional licenses for regulated industries (contractors, healthcare, financial services, real estate)
Industry-specific permits (food service, liquor, environmental compliance)

Check with your local county government and the Montana Department of Revenue for specific requirements. The Montana Business License Information Center is a useful starting point for industry-specific guidance.

Step 7: Open a Business Bank Account

This step is operationally critical, not optional. Commingling personal and business funds — using one account for both — is a primary factor courts consider when deciding whether to “pierce the corporate veil” and hold LLC members personally liable.

Open a dedicated business checking account before you invoice your first customer. You’ll typically need:

Your EIN
Articles of Organization (certified copy preferred)
Operating agreement (some banks require it)
Government-issued ID

Most major banks and credit unions offer business checking accounts with minimal fees for small LLCs.

Step 8: File Annual Reports to Stay Compliant

Montana LLC formation is only the beginning. To keep your LLC in good standing, you must file an annual report with the Montana Secretary of State every year.

2026 Montana annual report details:

Due date: April 15 (same day as federal tax returns — set a recurring calendar reminder)
Fee: $15 for standard LLCs
Where to file: Montana Secretary of State online portal
What’s reported: LLC name, principal address, registered agent, manager/member names

Missing the April 15 deadline triggers late fees and, eventually, administrative dissolution. Reinstating a dissolved LLC costs significantly more than the $15 annual fee — and the paperwork is a headache. Don’t let a $15 deadline slip.

Montana LLC Formation Cost Breakdown

Here’s the realistic cost picture for starting and maintaining a Montana LLC in 2026:

Cost Item	DIY	With ZenBusiness
Articles of Organization	$35	$35 + $0 service fee (Starter plan)
Registered agent (Year 1)	$0 (self) or $125 (Northwest)	$0 (included free)
Operating agreement	$0 (template) or $50–$200 (attorney)	Included on Pro plan ($99/year)
Name reservation (optional)	$10	$10
EIN	Free	Free
Annual report	$15	$15
Estimated Year 1 Total	$50–$380	$50–$149

For a state-by-state comparison of what LLC formation actually costs, see our how much does it cost to form an LLC guide.

Best Formation Services for Montana LLC

Service	Starting Price	Registered Agent	Best For
ZenBusiness	$0 + state fees	Free Year 1	Most small businesses
LegalZoom	$0 + state fees	Add-on ($299/yr)	Legal support access
Tailor Brands	$0 + state fees	Free Year 1	Branding + formation
Inc Authority	$0 + state fees	Free Year 1	Budget-first filers
Northwest Registered Agent	$39 + state fees	Included	Privacy-focused filers
Bizee	$0 + state fees	Free Year 1	Sole proprietors
LLC Attorney	Varies	Varies	Attorney-backed filings

Our top pick: ZenBusiness is the strongest all-around choice for most Montana LLC owners in 2026. Their Starter plan covers the essentials at no service cost, their Pro plan ($99/year) adds operating agreement templates and faster filing, and their compliance dashboard makes it easy to track your April 15 annual report deadline. Read our full ZenBusiness review for a feature-by-feature breakdown.

Best alternative: LegalZoom earns its place as a secondary recommendation for business owners who anticipate needing ongoing legal support — their higher-tier plans include attorney consultations. However, their $299/year registered agent service costs three times what ZenBusiness charges at renewal, and their baseline plan includes fewer features. See how they compare side-by-side in our ZenBusiness vs LegalZoom guide.

For a complete evaluation of all formation options, visit our best LLC formation services comparison.

Montana LLC Tax Overview

Montana’s tax environment is one of the more favorable in the country for LLC owners:

State income tax: Montana taxes individual income on a graduated scale from 1% to 6.75% (as of 2026). As a pass-through entity, your LLC’s profits are reported on your personal return and taxed at your individual rate.

No sales tax: Significant for product-based businesses. No sales tax compliance requirements means no collection, no remittance, no sales tax registrations.

No franchise tax: Delaware charges $300/year. California charges a minimum $800/year. Montana charges nothing.

S-Corp election: If your Montana LLC generates net profit above roughly $60,000–$80,000 per year, electing S-Corp tax status may reduce your self-employment tax burden. This requires filing IRS Form 2553. According to IRS Publication 3402, which covers LLC tax classification in detail, the analysis depends on your compensation structure and profit levels — consult a CPA before making the election. Our LLC vs S-Corp tax comparison walks through the math.

BOI Reporting: What Montana LLC Owners Must Know in 2026

The Corporate Transparency Act’s Beneficial Ownership Information (BOI) reporting requirement applies to most Montana LLCs. Under rules enforced by the Financial Crimes Enforcement Network (FinCEN):

LLCs formed on or after January 1, 2024 must file an initial BOI report within 90 days of formation
Existing LLCs formed before 2024 that haven’t yet filed must comply according to current FinCEN guidelines
Any change to beneficial ownership information must be reported within 30 days

Civil penalties for non-compliance run up to $591 per day. This is a federal requirement that applies regardless of which state you form in. For complete details on who must file, what’s required, and who qualifies for exemptions, see our BOI report for LLC owners guide.

Common Montana LLC Mistakes to Avoid

Using your home address as your registered agent address. This makes your personal address part of the public record permanently. A registered agent service solves this for as little as $99/year.
Skipping the operating agreement because Montana doesn’t require one. Courts treat the absence of an operating agreement as evidence that your LLC isn’t being operated as a legitimate separate entity.
Missing the April 15 annual report deadline. The $15 fee is trivial. Administrative dissolution and reinstatement is not.
Mixing personal and business finances. Open a separate business bank account before you do your first transaction.
Forgetting local licenses. Montana has no statewide general business license, but your city or county likely has its own requirements.

Frequently Asked Questions

How much does it cost to start an LLC in Montana?

The minimum cost is $35 — the state filing fee for Articles of Organization. Adding a professional registered agent (free in Year 1 with ZenBusiness or Inc Authority) and the $15 annual report brings your first-year total to approximately $50 if you file yourself. Full-service formation with ZenBusiness Pro runs about $134 in Year 1 ($99 + $35 state fee).

How long does it take to form a Montana LLC?

Online filings are typically processed by the Montana Secretary of State within 3–5 business days. Mail filings take 2–3 weeks. Formation services like ZenBusiness can sometimes facilitate faster turnaround on their paid plans.

Do I need a registered agent in Montana?

Yes. Montana law requires every LLC to maintain a registered agent with a physical Montana street address. You can act as your own agent if you have a Montana address and can be reached during business hours, but a professional service provides privacy and reliability benefits.

Does Montana require an operating agreement?

Montana law does not mandate a written operating agreement, but it is strongly recommended — particularly for multi-member LLCs. Without one, state default rules govern your LLC’s internal operations, which may not align with what members actually intended.

What is the Montana LLC annual report fee and deadline?

The annual report fee is $15, due April 15 each year. Filing is done online through the Montana Secretary of State portal. Missing the deadline can eventually result in administrative dissolution of your LLC.

Can I be my own registered agent in Montana?

Yes, provided you have a physical Montana address (not a P.O. box) and are consistently available during regular business hours. Many owners prefer a professional service to keep their personal address off public records.

Is Montana a good state to form an LLC if I live elsewhere?

It depends. Montana’s low costs and no-sales-tax environment are attractive, but if you operate primarily in another state, you’ll likely need to register as a foreign LLC there — adding fees and compliance obligations that may negate Montana’s advantages. Get professional advice before forming in a state where you don’t reside or do business.

What taxes does a Montana LLC pay?

Montana LLCs pay no corporate income tax (pass-through taxation applies). Owners pay Montana state income tax at individual rates (1%–6.75%) on their share of profits. There is no state sales tax and no LLC franchise tax.

Conclusion

Montana stands out as one of the most cost-effective and business-friendly states for LLC formation in 2026. The $35 filing fee, $15 annual report, no sales tax, and no franchise tax add up to a genuinely low-cost operating environment — one that compares favorably to almost every major alternative.

If you’re ready to learn how to start an LLC in Montana and want the process handled cleanly, ZenBusiness offers the best combination of price, features, and first-year value at $0 + state fees. LegalZoom is the right call if you want built-in legal support access alongside formation.

For a complete side-by-side comparison of all available services, visit our best LLC formation services guide before you decide.

The author name used in this article may be a pen name or pseudonym and is used for illustrative and editorial purposes only. This article is for informational purposes only and does not constitute investment, tax, or legal advice. Consult qualified professionals before making financial decisions.