3 Best Registered Agents in Montana (2026): Where to Start
For registered agents in Montana, we recommend Mainstay Filing ($149 a year), Registered Agent MT.org ($99 a year) and Montana Registered Agent.co ($99 a year) in 2026, ranked from first to last. First year: $99 to $149. Three years: $297 to $447.
Written by the Simple Filing Guide editorial team
Quick guide
Do you have to name one?
Yes: the state requires it
Official term
Registered agent
Yearly price
$99 to $149 annually
Recommended
Mainstay Filing, Registered Agent MT.org then Montana Registered Agent.co
Our Montana shortlist
Ranked best first using the checks described on the method page.
#1Number 1
1. Mainstay Filing: best for LLCs that may expand
$149 yearly, renewing for $149
Start with Mainstay Filing in Montana: one account at $149 a year covers whichever state the LLC registers in.
Registered Agent MT.org costs $150 less over three years, provided the company never leaves Montana.
Checklist: what is included
An in-state office address
Free scans of three government mailings per year
Serves LLCs, corporations, LPs, LLPs and nonprofits
What works
One price in all fifty states
$149 each year with no increase
Gaps
Registered Agent MT.org charges $50 less each year
Company prices from November 13, 2026, before state fees.
Step by step
Does this state require a registered agent?
Every LLC must name a registered agent with an in-state street address.
Statute: Mont. Code Ann. § 35-7-105. mca.legmt.gov, confirmed October 2026, official source
Who qualifies as an agent?
A commercial registered agent listed with the Secretary of State, or a noncommercial agent: an individual, including an owner, or an entity in Montana.
Qualified owners can skip the cost of an agent.
How much does an agent cost?
The recommended services charge $99 to $149 annually; three years cost $297 to $447.
Choosing a different agent leaves every state fee unchanged.
Why does the state want an agent?
Whatever legal papers or state notices the company receives are sent to its Montana address.
If papers arrive and no one accepts them, a case can move ahead without the LLC. What is service of process?
What does the LLC owe the state every year?
Set aside $20 each year for the annual report. Write down the state's date, April 15.
sosmt.gov, confirmed October 2026, official source
What decided the ranking?
Mainstay Filing leads on filing jobs included, which carries 27% of our score.
64% of the score comes from total for three years and filing jobs included.
We score where a service works, and one pick works everywhere.