Montana Foreign LLCs (2026): Registration Fees and the 3 Best Services
Montana Registered Agent.co ($199), Registered Agent MT.org ($199) and Mainstay Filing ($199): our 2026 order for foreign LLC registration in Montana. A foreign LLC pays Montana $70 up front; 1st of 50 over three years.
Registration is made on the Application for Certificate of Authority (foreign limited liability company), lodged with the Montana Secretary of State, Business Services, for $70.
Afterwards it files the annual report, April 15.
What to have ready
The exact legal name from the home state, plus the date of formation.
A registered agent in Montana; every pick on this page provides one.
A way to pay the $70 state fee.
The price of not registering
Until it registers, the LLC cannot file a lawsuit in the state (MCA 35-8-1002(1)). A daily penalty of $5 may apply.
Reasoning for the order
Of the five criteria, added cost over three years (32%) is where Montana Registered Agent.co pulled ahead of Registered Agent MT.org in Montana.
Over three years Montana Registered Agent.co charges $397 in service fees, $100 under Mainstay Filing.
Common questions
What does a foreign LLC pay to register in Montana?
$70 paid to the state. A service adds $199.
What is the foreign registration form in Montana?
Application for Certificate of Authority (foreign limited liability company), filed with the Montana Secretary of State, Business Services.
What does a foreign LLC owe each year?
It files the annual report.
What happens if the LLC operates there unregistered?
Until it registers, the LLC cannot file a lawsuit in the state (MCA 35-8-1002(1)). A daily penalty of $5 may apply.
Does a foreign LLC need a registered agent in Montana?
Every LLC must name a registered agent with an in-state street address.
Who should handle the registration?
We would file with Montana Registered Agent.co: $199 plus the state fee, first agent year included, then $99 a year for the agent. Next come Registered Agent MT.org and Mainstay Filing.