Montana is one of the only states left that will not take a paper Articles of Organization. Every LLC filing goes through the Secretary of State's online portal, no exceptions. It is also one of five states with no sales tax at all, which is the detail that actually pulls founders toward Montana in the first place.
TL;DR
- Filing is online-only: Montana does not accept paper Articles of Organization, a real departure from most states.
- Step 1, name: confirm your LLC name is distinguishable and includes a required designator, and reserve it for $10 if you're not ready to file.
- Step 2, registered agent: you need a Montana street address to receive legal notices, and there's no exemption for single-member LLCs.
- Step 3, Articles of Organization: the $35 online filing is what legally creates your LLC, with paid expedite options if you need it faster.
- Step 4, EIN: free from the IRS, online for SSN/ITIN holders, Form SS-4 by phone, fax, or mail for founders without either.
- Step 5, Form 5472: a 25%+ foreign-owned single-member LLC must file this annually, even at zero revenue, or risk a $25,000 minimum penalty.
- Step 6, ongoing compliance: the Annual Report fee is currently waived through 2027 for on-time filers, but the report itself is still mandatory every year by April 15.
Why Form an LLC in Montana
Montana's biggest draw is structural, not procedural: it's one of only five states with no state sales tax, and it has no general business or franchise tax at the entity level. For an LLC selling physical goods or running e-commerce, that can meaningfully simplify multi-state tax exposure.
The state also currently waives its Annual Report fee for LLCs and corporations that file on time, a policy the Secretary of State has confirmed runs through 2027. That's a real cost saving compared to states charging $50 to $300 a year just to stay in good standing, though the waiver is time-limited and worth reconfirming before you rely on it.
The tradeoff is friction for founders with no physical connection to Montana. The registered agent requirement calls for a Montana street address, and Montana has become a well-known jurisdiction for registering out-of-state vehicles, RVs, and boats to sidestep sales tax elsewhere. Several states have since cracked down on that practice, so it carries real legal and reputational risk rather than being a shortcut worth taking.
Step 1: Choose and Reserve Your LLC Name
Your LLC name must include "LLC," "L.L.C.," or "Limited Liability Company," and it has to be distinguishable from every other business name already on file with the Montana Secretary of State.
- Search first. Check the Secretary of State's business name database before you commit to a name.
- Reserve it if you're not ready to file. File the "Application for Reservation of Name" (SOS Form #79) for $10.
- The hold is short and one-time. A reservation lasts 120 days and is not renewable, so don't reserve a name far ahead of when you plan to file.
- Expedite if you're in a hurry. A 24-hour turnaround costs $20 extra, and a 1-hour turnaround costs $100 extra.
Since the reservation can't be renewed, treat it as a placeholder for a filing you're genuinely close to submitting, not a way to lock in a name indefinitely.
Step 2: Appoint a Registered Agent
Montana law (Title 35, Chapter 7 of the Montana Code Annotated) requires every LLC to appoint a registered agent with a physical street address in the state, available to receive legal and state notices on the LLC's behalf.
Who Qualifies as Your Registered Agent
An individual agent must be a Montana resident. An entity acting as agent must be a domestic Montana entity or a foreign entity authorized to do business in the state. Montana does not exempt single-member LLCs from this requirement, unlike some states.
The statute requires a physical street address in Montana. We haven't found an explicit prohibition on PO boxes in the primary source, but treat a real street address as the safe assumption rather than testing a PO box with the state.
Why This Is the Main Friction Point for Out-of-State Founders
If you have no physical presence in Montana, and you're not a Montana resident, you'll need a commercial registered agent service. This is the step where most non-resident founders, including Indian founders forming a US entity remotely, hit their first real Montana-specific requirement.
Step 3: File Your Articles of Organization Online
Montana's Articles of Organization is the filing that legally creates your LLC, and it must be filed through the Secretary of State's online portal. Montana does not accept paper filings for this document, which is a notable departure from states that still take mail-in submissions.
| Filing detail | Cost or timeline |
|---|---|
| Base filing fee | $35 |
| Series LLC (per series) | +$50 |
| Standard processing | About 5 to 6 business days, no extra charge |
| 24-hour expedite | +$20 |
| 1-hour expedite | +$100 |
Montana has no publication requirement after filing, so once the Articles are approved, your LLC legally exists and there's no newspaper notice step to complete.
Step 4: Get an EIN From the IRS
An Employer Identification Number (EIN) is what the IRS uses to identify your LLC for tax purposes, and you'll need one to open a US bank account or file federal taxes. It's free directly from the IRS.
- SSN or ITIN holders can apply online and typically get an EIN the same day.
- Founders without either apply using Form SS-4, submitted by phone, fax, or mail, since the online tool isn't available to them.
Get the responsible-party details right on the first submission. A rejected Form SS-4 means resubmitting and waiting again, which can push the timeline out by weeks on the manual route.
Step 5: File Form 5472 if Your LLC Is Foreign-Owned
If your single-member LLC is 25% or more foreign-owned, the IRS requires an annual Form 5472 filing, regardless of revenue. It's filed alongside a pro forma Form 1120, a placeholder corporate return required even though the LLC itself owes no separate corporate tax.
The IRS's stated minimum penalty for a late or missing Form 5472 is $25,000 per form, per year. A dormant LLC with no transactions still has to file. Assuming "nothing happened, so nothing to report" is one of the most common and expensive mistakes foreign-owned LLCs make.
Step 6: Handle Montana's Ongoing Compliance Requirements
Forming the LLC is the start of an ongoing relationship with the state, not the end of it. Montana's main recurring requirement is the Annual Report.
The Annual Report and Its Fee Waiver
Every Montana LLC must file an Annual Report each year by April 15. The Montana Secretary of State has confirmed the filing fee is waived for LLCs and corporations that file on time for 2024 through 2027. The report itself is still mandatory even though the fee is currently waived, and the waiver's end date means you should confirm current status before assuming it's free.
Sources disagree on the late fee if you miss the deadline, so we won't cite a specific number here. What is confirmed: the state sends a notice of pending dissolution if the report is unpaid by September 1, and it can administratively dissolve a domestic LLC on December 1 (or a foreign LLC on November 1) if it stays unresolved.
State Income Tax Is Not Flat, at Least Not Yet
Montana runs a two-bracket income tax system as of 2026, not a flat rate. Single filers pay 4.7% on taxable income up to $47,500 and 5.65% above that, after the top rate was cut from 5.9% in 2025, with a further cut to 5.4% scheduled for 2027. There's active political discussion about moving to a full flat tax, but that has not been enacted as of 2026.
Montana's lack of a state sales tax has made it a well-known jurisdiction, outside the LLC-formation context specifically, for registering RVs, exotic cars, and boats to avoid sales tax in an owner's home state. Several states have cracked down on this workaround, and it carries genuine legal and reputational risk.
Treat it as a caution, not a strategy, and check with a tax professional before assuming it applies to your situation.
Common Mistakes to Avoid
- Trying to mail in your Articles of Organization. Montana only accepts the online filing, so a paper submission will just get bounced back, costing you time.
- Assuming the Annual Report is free indefinitely. The fee waiver runs through 2027 as currently structured. Confirm the fee status each year rather than assuming it stays waived.
- Skipping Form 5472 because the LLC hasn't made money. The filing requirement doesn't depend on revenue, and the $25,000 minimum penalty applies either way.
- Using a friend's Montana address as your registered agent without understanding the ongoing obligation to be available during business hours to receive legal notices.
- Forming in Montana purely to avoid vehicle sales tax elsewhere. This use case carries real legal exposure and isn't a substitute for genuine business presence in the state.
How FinStackk Helps With Starting Your LLC in Montana
We handle the incorporation steps above, including EIN applications and registered agent service, through Fin-Start. It's built to handle cross-border details for founders incorporating from outside the US, including ODI compliance for Indian founders.
Once your LLC exists, Fin-Tax supports applicable tax filings, including Form 5472, while Complyy identifies and tracks the compliance requirements applicable to the business, including Montana’s Annual Report and other state obligations, on a proactive deadline calendar. The platform combines technology, automation, and expert support, giving founders one place to manage these requirements. Book a free demo to see both in action.
FAQ
Can I file Montana's Articles of Organization by mail?
No. Montana requires the Articles of Organization to be filed online through the Secretary of State's portal, and it does not accept paper filings for this document. This is different from most states, which typically still allow a mail-in option alongside online filing.
Is Montana's Annual Report fee actually free?
The Montana Secretary of State has waived the Annual Report filing fee for LLCs and corporations that file on time for 2024 through 2027, based on official state press releases. The report itself is still required every year by April 15 regardless of the fee status, and since the waiver has a defined end date, it's worth confirming the current fee before you file, especially if you're reading this after 2027.
Do I still owe Montana state income tax if I form an LLC there but live elsewhere?
Montana taxes income sourced to the state, and a single-member LLC's income typically passes through to the owner's personal tax return, taxed based on where the owner actually lives and works, not just where the LLC is registered. Montana currently uses a two-bracket income tax system (4.7% and 5.65% as of 2026), not a flat rate, though it has cut its top rate in recent years. A tax professional can confirm how your specific situation is sourced.