Foreign LLC Registration and Qualification Requirements in Montana
At a glance
| Governing law and registration term | Montana LLC Act, MCA Title 35 ch. 8 pt. 10; 'application for certificate of authority' filed with Secretary of State (§§ 35-8-1001 to -1013) |
|---|---|
| Trigger and required timing | Obtain certificate before transacting business. Except for safe-harbor activity, a Montana public contract requires authority before contracting, subject to notice/30-day and out-of-state-goods/services rules; other unlisted activity is fact-specific (§ 35-8-1001) |
| Statutory safe harbors | Proceedings, internal affairs, bank accounts, securities offices, independent contractors, outside-accepted orders, debt/security activity, qualifying debt-acquired property, ≤30-day isolated transaction, and interstate commerce; list nonexclusive. No general property harbor (§ 35-8-1001(2)-(3)) |
| Application contents and signer | Name, jurisdiction, organization date/duration, principal mailing address, agent filing, managers if different from members, existence/compliance statement, and series names/agreements if any. Manager/member/fiduciary signs; attorney-in-fact allowed (§§ 35-8-204, -1003) |
| Home-state evidence | No separate home-state certificate required; application states the LLC complied with formation-jurisdiction organizational law and exists there (§ 35-8-1003(7)) |
| Name, agent, and local address | Name must comply; may add LLC identifier or file available assumed business name. Application names commercial agent or noncommercial agent with address; appointment affirms consent (§§ 35-7-105, 35-8-1009) |
| Filing method, fee, and effective date | Online SOS portal; $70 base + $50 per named series member. Optional $20 24-hour or $100 1-hour processing. Authority begins when SOS issues certificate; no delayed initial-authority date stated (§§ 35-8-1003, -1008; SOS fees) |
| Unregistered consequences and cure | LLC/successor/assignee suit bar until authority; court may stay; $5/day civil penalty capped $1,000/year, AG collection; acts valid and defense preserved, but Montana public contract voidable. General member/manager liability shield remains (§§ 35-8-304, -1002) |
Requirements one by one
Governing law and registration trigger
Montana uses an application for certificate of authority under Title 35, chapter 8, part 10. Mont. Code Ann. § 35-8-1001 bars a foreign LLC from transacting business until the Secretary of State grants that certificate.
The safe-harbor list is expressly nonexclusive. An activity not listed may still fall outside transacting business, but the statute does not define that outer boundary, so the result is fact-specific.
Statutory safe harbors and public contracts
Mont. Code Ann. § 35-8-1001 excludes proceedings; internal affairs; bank accounts; securities offices, trustees, and depositaries; independent- contractor sales; orders accepted outside Montana; creating or acquiring debt, mortgages, and security interests; debt collection and enforcement; interstate commerce; and an isolated transaction completed within 30 days outside a course of repeated similar transactions.
Property ownership is narrower than a general “without more” harbor. It covers property acquired incident to debt-enforcement activity if the property is disposed of within five years, does not produce income, or is not used in an LLC function.
Except for safe-harbor activity, entering a contract with Montana, a state agency, or a political subdivision is an express trigger, and authority is due before contracting. The statute requires notice and allows 30 days to qualify before an existing public contract may be voided; it excludes goods or services prepared out of state for delivery or use in Montana.
Application contents and home-state evidence
Mont. Code Ann. § 35-8-1003 requires the LLC's name, formation jurisdiction, organization date and duration, principal-office business mailing address, registered-agent information, current managers and their business mailing addresses if different from members, and any series names plus each series' operating agreement.
Montana requires a statement that the LLC complied with the organizational law of its formation jurisdiction and exists there. It does not require a separate home-state certificate of existence or good standing.
Under Mont. Code Ann. § 35-8-204, a manager of a manager-managed LLC, a member of a member-managed LLC, or a qualifying fiduciary signs with name and capacity. An attorney-in-fact may sign without filing the power of attorney.
Name and registered agent
Mont. Code Ann. § 35-8-1009 requires a compliant name before the certificate may issue. A foreign LLC may add a permitted LLC identifier for Montana use; if the real name is unavailable, it may file and use an available assumed business name.
The application includes the filing required by Mont. Code Ann. § 35-7-105: the commercial registered agent's name or the noncommercial agent's name and address. Naming the agent affirms consent to serve.
Online filing, fee, and authority date
The Secretary of State directs new business registrations to its online filing portal. The current foreign-LLC certificate fee is $70, plus $50 for each named series member. The current fee page also lists optional $20 24-hour and $100 one-hour processing.
Mont. Code Ann. § 35-8-205 governs acceptance and filing, while Mont. Code Ann. § 35-8-1008 states that the issued certificate authorizes the LLC to transact business. Part 10 states no delayed initial-authority date.
Unregistered consequences and cure
Mont. Code Ann. § 35-8-1002 bars the foreign LLC, specified successors, and an assignee of a business-derived cause of action from maintaining a Montana proceeding until authority is obtained. A court may stay the case while it decides whether authority is required and, if so, until the certificate is obtained.
The civil penalty is $5 for each day, capped at $1,000 for each year, and the attorney general may collect it. The lapse does not invalidate the LLC's acts or prevent its defense, except that a public contract may be voidable by the state, agency, or political subdivision. Mont. Code Ann. § 35-8-304 supplies the general member-manager liability shield; part 10 does not state that the registration lapse removes it.
What trips people up
- The property harbor is conditional. Montana does not broadly protect all real or personal property ownership; the property must arise from listed debt-enforcement activity and meet one of three further conditions.
- A public contract is an express trigger. The 30-day language is a notice and anti-voidance window, not permission to begin every kind of Montana business for 30 days.
- Home existence is self-certified. Do not add a recent certificate merely because many other states require one.
- The daily penalty has an annual cap. The $5 assessment stops at $1,000 for each year, not $1,000 total for a multiyear lapse.
Common questions
Does one Montana transaction require authority?
Not necessarily. Section 35-8-1001 excludes an isolated transaction completed within 30 days when it is not part of repeated similar transactions.
Does owning Montana property require authority?
The statute protects only qualifying property acquired through debt- enforcement activity. Ordinary investment or operating property does not fit a general property-ownership safe harbor.
Can an unregistered foreign LLC defend a lawsuit?
Yes. Section 35-8-1002 preserves defense rights and the validity of acts while conditioning the LLC's own proceeding on obtaining authority.
What happens to a Montana government contract?
If authority was required and missing, the state, agency, or political subdivision may void the contract. Section 35-8-1001 requires notice and gives the foreign LLC 30 days to obtain authority before an existing contract may be voided.
Statutes and sources
- Mont. Code Ann. §§ 35-8-1001 to -1003 and -1008 to -1009. Trigger, nonexclusive safe harbors, public contracts, application, self-certified existence, authority date, and name. Montana LLC foreign-company part (accessed July 27, 2026).
- Mont. Code Ann. §§ 35-7-105, 35-8-204 to -205, and 35-8-304. Agent filing and consent, signer, filing, and member-manager liability. Registered agent, execution, and liability shield (accessed July 27, 2026).
- Montana Secretary of State. Online filing route, $70 certificate fee, series charge, and priority processing. Business services and filing fees (accessed July 27, 2026).
Source links
Every statute quoted above, linked, with the date we checked it.
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