Foreign LLC Guide › Montana
How to register a foreign LLC in Montana
Registering a foreign LLC in Montana takes five steps and a $70 state fee, filed with the Montana Secretary of State, Business Services.
The five steps
- Confirm the LLC is active at home. Montana does not ask an LLC for a certificate. Keep the LLC’s home-state filings current anyway.
- Line up a registered agent. It needs a street address in Montana. The services below include one for the first year.
- Complete Application for Certificate of Authority (foreign limited liability company). Download it from the Montana Secretary of State, Business Services.
- Pay $70. That is the official fee.
- Set up the yearly filing. Annual report (Montana Secretary of State), no fee (due: april 15).
Documents checklist
- Application for Certificate of Authority (foreign limited liability company)
- The Montana agent’s name and street address
- The LLC’s exact legal name and formation date
- Payment of $70
Best 3 Foreign Registration Services in Montana (2026)
Prefer not to do the steps yourself? These are the services for Montana.
- 1. Mainstay Filing $199 + the $70 state fee = $269; registered agent free for the first year, then $149 a year.
- 2. Registered Agent MT.org $199 + the $70 state fee = $269; registered agent included for the first year, then $99 a year.
- 3. Montana Registered Agent.co $199 + the $70 state fee = $269; registered agent included for the first year, then $99 a year.
Service prices from each provider’s Montana page, read October 29, 2026. The state fee is the official figure below and is paid to the Montana Secretary of State, Business Services.
Montana guide questions
How do I register a foreign LLC in Montana?
Five steps: confirm the LLC is active, name an agent, complete Application for Certificate of Authority (foreign limited liability company), pay $70 and set up the yearly filing.
Where do I send the Montana application?
To the Montana Secretary of State, Business Services. The link above goes to its filing page.
Can a service do the Montana steps?
Yes: Mainstay Filing charges $199 plus the state fee and includes the agent for year one.
Sources
- Montana Secretary of State, business fees: sosmt.gov/business/fees/, updated October 29, 2026
- MCA 35-8-1003, application contents: mca.legmt.gov/bills/mca/title_0350/chapter_0080/part_0100/section_0030/0350-0080-0100-0030.html, updated October 29, 2026
- Montana Secretary of State, register a business: help.sosmt.gov/en/article/register-a-business-v0307u/, updated October 29, 2026
- MCA 35-8-1001, transacting business: mca.legmt.gov/bills/mca/title_0350/chapter_0080/part_0100/section_0010/0350-0080-0100-0010.html, updated October 29, 2026
- MCA 35-8-1002, consequences: mca.legmt.gov/bills/mca/title_0350/chapter_0080/part_0100/section_0020/0350-0080-0100-0020.html, updated October 29, 2026