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Montana Foreign qualification

The requirements, the timing and the official sources. Everything we’ve verified, in one place.

Sources verifiedLast verified 2026-10-25

Authority to do business

Choose your entity type and confirm the scope of the cited requirements. Fees and additional charges are listed separately.

LLCs

Fee

$70

View official source

Timing

Before transacting business in Montana.

View official source

Required documents

Application for certificate of authority, including a statement of existence and compliance with home-jurisdiction organizational laws; series LLCs include each series' operating agreement.

View official source

Penalties for operating without registration

Cannot maintain a Montana court proceeding until authorized; civil penalty of $5 per day capped at $1,000 per year; covered government contracts are voidable.

View official source

Timing

Before transacting business in Montana.

Verified 2026-10-25 — source and quotation
35-8-1001. Authority to transact business required. (1) A foreign limited liability company may not transact business in this state until it obtains a certificate of authority from the secretary of state.
Official source

Required documents

Application for certificate of authority, including a statement of existence and compliance with home-jurisdiction organizational laws; series LLCs include each series' operating agreement.

Verified 2026-10-25 — source and quotation
35-8-1003. Application for certificate of authority. A foreign limited liability company may apply for a certificate of authority to transact business in this state by delivering an application to the secretary of state for filing. The application must set forth: … (7) a statement that the foreign limited liability company has complied with the organizational laws in the jurisdiction in which it is organized and that the foreign limited liability company exists in that jurisdiction; and (8) if the foreign limited liability company has one or more series of members, the name of each series of members. A copy of the operating agreement of each series of members must be included with the application.
Official source

Fee

$70

Verified 2026-10-25 — source and quotation
Certificate Of Authority | $70.00
Official source

Penalties for operating without registration

Cannot maintain a Montana court proceeding until authorized; civil penalty of $5 per day capped at $1,000 per year; covered government contracts are voidable.

Verified 2026-10-25 — source and quotation
35-8-1002. Consequences of transacting business without authority. (1) A foreign limited liability company transacting business in this state without a certificate of authority may not maintain a proceeding in any court in this state until it obtains a certificate of authority. … (4) A foreign limited liability company is liable for a civil penalty of $5 for each day, but not to exceed a total of $1,000 for each year, that it transacts business in this state without a certificate of authority. The attorney general may collect all penalties due under this subsection and deposit them to the general fund. (5) Notwithstanding the provisions of subsections (1) and (2) and except as provided in subsection (6), the failure of a foreign limited liability company to obtain a certificate of authority does not impair the validity of its acts or prevent it from defending any proceeding in this state. (6) A contract between the state of Montana, an agency of the state, or a political subdivision of the state and a foreign limited liability company that has failed to obtain a certificate of authority, as required under 35-8-1001, is voidable by the state, the contracting state agency, or the contracting political subdivision.
Official source

Fee notes

A series LLC pays an additional $50 for each named series member.

Verified 2026-10-25 — source and quotation
plus $50.00 for each series member named in the series LLC
Official source

Corporations

Fee

$70

View official source

Timing

Before doing business in Montana.

View official source

Required documents

Signed foreign registration statement including existence and compliance with home-jurisdiction organizational laws.

View official source

Penalties for operating without registration

Cannot maintain a Montana court proceeding until registered; state or local government contracts covered by section 35-14-1505(4) are voidable.

View official source

Timing

Before doing business in Montana.

Verified 2026-10-25 — source and quotation
35-14-1502. Registration to do business in this state. (1) A foreign corporation may not do business in this state until it registers with the secretary of state under this part.
Official source

Required documents

Signed foreign registration statement including existence and compliance with home-jurisdiction organizational laws.

Verified 2026-10-25 — source and quotation
35-14-1503. Foreign registration statement. To register to do business in this state, a foreign corporation shall deliver a foreign registration statement to the secretary of state for filing. The registration statement must be signed by the foreign corporation and state: … (7) a statement that the foreign corporation has complied with the organizational laws in the jurisdiction in which it is organized and that the foreign corporation exists in that jurisdiction.
Official source

Fee

$70

Verified 2026-10-25 — source and quotation
Foreign Registration Statement – Profit Corporation | $70.00
Official source

Penalties for operating without registration

Cannot maintain a Montana court proceeding until registered; state or local government contracts covered by section 35-14-1505(4) are voidable.

Verified 2026-10-25 — source and quotation
(2) A foreign corporation doing business in this state may not maintain a proceeding in any court of this state until it is registered to do business in this state. (3) Except as provided in subsection (4), the failure of a foreign corporation to register to do business in this state does not impair the validity of a contract or act of the foreign corporation or preclude it from defending a proceeding in this state. (4) A contract between the state of Montana, an agency of the state, or a political subdivision of the state and a foreign corporation that has failed to register to do business as required under 35-14-1505(4) is voidable by the state, the contracting state agency, or the contracting political subdivision.
Official source
Official sources and verification (9)

Last verified 2026-10-25. Each quotation supports the corresponding published value.

Corporation / Fee
Foreign Registration Statement – Profit Corporation | $70.00
Official source

Verified 2026-10-25

Corporation / Required documents
35-14-1503. Foreign registration statement. To register to do business in this state, a foreign corporation shall deliver a foreign registration statement to the secretary of state for filing. The registration statement must be signed by the foreign corporation and state: … (7) a statement that the foreign corporation has complied with the organizational laws in the jurisdiction in which it is organized and that the foreign corporation exists in that jurisdiction.
Official source

Verified 2026-10-25

Corporation / Timing
35-14-1502. Registration to do business in this state. (1) A foreign corporation may not do business in this state until it registers with the secretary of state under this part.
Official source

Verified 2026-10-25

Corporation / Penalties for operating without registration
(2) A foreign corporation doing business in this state may not maintain a proceeding in any court of this state until it is registered to do business in this state. (3) Except as provided in subsection (4), the failure of a foreign corporation to register to do business in this state does not impair the validity of a contract or act of the foreign corporation or preclude it from defending a proceeding in this state. (4) A contract between the state of Montana, an agency of the state, or a political subdivision of the state and a foreign corporation that has failed to register to do business as required under 35-14-1505(4) is voidable by the state, the contracting state agency, or the contracting political subdivision.
Official source

Verified 2026-10-25

LLC / Fee
Certificate Of Authority | $70.00
Official source

Verified 2026-10-25

LLC / Fee notes
plus $50.00 for each series member named in the series LLC
Official source

Verified 2026-10-25

LLC / Required documents
35-8-1003. Application for certificate of authority. A foreign limited liability company may apply for a certificate of authority to transact business in this state by delivering an application to the secretary of state for filing. The application must set forth: … (7) a statement that the foreign limited liability company has complied with the organizational laws in the jurisdiction in which it is organized and that the foreign limited liability company exists in that jurisdiction; and (8) if the foreign limited liability company has one or more series of members, the name of each series of members. A copy of the operating agreement of each series of members must be included with the application.
Official source

Verified 2026-10-25

LLC / Penalties for operating without registration
35-8-1002. Consequences of transacting business without authority. (1) A foreign limited liability company transacting business in this state without a certificate of authority may not maintain a proceeding in any court in this state until it obtains a certificate of authority. … (4) A foreign limited liability company is liable for a civil penalty of $5 for each day, but not to exceed a total of $1,000 for each year, that it transacts business in this state without a certificate of authority. The attorney general may collect all penalties due under this subsection and deposit them to the general fund. (5) Notwithstanding the provisions of subsections (1) and (2) and except as provided in subsection (6), the failure of a foreign limited liability company to obtain a certificate of authority does not impair the validity of its acts or prevent it from defending any proceeding in this state. (6) A contract between the state of Montana, an agency of the state, or a political subdivision of the state and a foreign limited liability company that has failed to obtain a certificate of authority, as required under 35-8-1001, is voidable by the state, the contracting state agency, or the contracting political subdivision.
Official source

Verified 2026-10-25

LLC / Timing
35-8-1001. Authority to transact business required. (1) A foreign limited liability company may not transact business in this state until it obtains a certificate of authority from the secretary of state.
Official source

Verified 2026-10-25

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Last verified 2026-10-25.

Official sources (6)

Not legal or tax advice. Confirm with the official agency before filing.