Register an LLC in Another State

Register an LLC in Another State › Montana

Register your LLC in Montana

To register an LLC formed in another state in Montana, file Application for Certificate of Authority (foreign limited liability company) with the Montana Secretary of State, Business Services and pay $70.

Before: at home

Montana does not ask an LLC for a certificate from its home state. Make sure the LLC is active and current there, then move on.

During: in Montana

File
Application for Certificate of Authority (foreign limited liability company)
Fee
$70
Agent
A registered agent with a Montana street address

Best 3 Foreign Registration Services in Montana (2026)

Rather not file it yourself? For an existing LLC in Montana these three do it.

1. Mainstay Filing

$199 + $70 state fee = $269

Registered agent free for the first year, then $149 a year.

2. Registered Agent MT.org

$199 + $70 state fee = $269

Registered agent included for the first year, then $99 a year.

3. Montana Registered Agent.co

$199 + $70 state fee = $269

Registered agent included for the first year, then $99 a year.

Service prices read from each provider’s Montana page on October 28, 2026. The state fee is the official figure below and is paid to the Montana Secretary of State, Business Services.

After: staying registered

Annual report (Montana Secretary of State), no fee (due: april 15). The services above include the agent for year one.

Montana questions

Can my existing LLC operate in Montana?

Yes, once it is registered there. You file Application for Certificate of Authority (foreign limited liability company) with the Montana Secretary of State, Business Services and pay $70; you do not form a new LLC.

What do I need from my home state?

Nothing special. Montana does not ask an LLC for a home-state certificate, though the LLC should be active at home.

What happens after I register in Montana?

Annual report (Montana Secretary of State), no fee (due: april 15), and a registered agent must stay in place.

Sources