3 Best Registered Agents in Montana (2026): Who to Ask First
Ask about Montana Registered Agent.co ($99 a year), Mainstay Filing ($149 a year) and Registered Agent MT.org ($99 a year), in that order, when you need registered agents in Montana in 2026. An agent costs $99 to $149 in the first year and $297 to $447 across three years.
Answered by the Ask About LLC editorial team ·
The short answers
Do you have to name an agent?
Yes, the law says so
What the law calls it
Registered agent
What do agents charge?
$99 to $149 a year
Who to ask
Montana Registered Agent.co, Mainstay Filing then Registered Agent MT.org
Our Montana answer, best first
The order follows our five questions: three-year cost first, then how much the price covers.
1Ask this one first
1. Montana Registered Agent.co: best for LLCs that never leave the state
Pay $99 the first year and $99 after
Montana Registered Agent.co is the one to ask first in Montana because it supplies an agent in the state for $99 a year.
Yes, it costs less than Mainstay Filing over three years, and cost is the question we weigh most.
What the price covers
A local address on file
Scans of legal papers online
Good news
Flat $99 a year, no change at renewal
Below Mainstay Filing on yearly price
The catch
Covers Montana and nothing else
Plan time for the annual report, since it is excluded
Prices as of November 13, 2026. The state's own fees are in the checklist below.
What owners want to know
Do I have to name 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, read in October 2026 for this answer
Can I name anyone?
A commercial registered agent listed with the Secretary of State, or a noncommercial agent: an individual, including an owner, or an entity in Montana.
A qualifying owner can serve at no cost.
What will I pay an agent each year?
Our picks charge $99 to $149 annually, and three years total $297 to $447.
No state fee depends on which agent you name.
Why does the state want an agent?
Any legal notice meant for the company lands at its Montana agent first.
A good agent tells you quickly when something arrives, which is worth asking about before you sign up. Service of process, explained
What does the LLC owe the state each year?
The annual report repeats every year, at $20 each time. Due date, as the state puts it: April 15.
How was the bottom line figured? Add the filing fee, the next two reports and the minimum tax if the state has one. Anything with no fixed price, a newspaper notice for instance, is described above and kept out of the sum.
Questions people also ask
Is it allowed to name myself?
You may, once you fit the state's rule. Plenty of owners still pay a service to keep a home address off the record.
What address does an agent need?
The address has to be an actual street address or rural route box number in Montana. A P.O. box alone is not enough.
What do the picks cost over three years?
For three years you would pay $297 at Montana Registered Agent.co, $447 at Mainstay Filing, $297 at Registered Agent MT.org
Where do these numbers come from?
Each state fee links to its official page, and each service price is read from the company's own site.
Does the law require a service?
Hiring help is a convenience you pay for, never a legal duty.
Who should I ask first about a registered agent in Montana?
Montana Registered Agent.co comes first: the service is $99 annually and puts a street address on file. Next are Mainstay Filing and Registered Agent MT.org.
Where did we look this up?
Ask-about note for Montana Secretary of State fee: the state publishes it at sosmt.gov, confirmed October 2026, so you can look it up yourself
Ask-about note for Montana yearly filing: Annual report: the state publishes it at sosmt.gov, confirmed October 2026, so you can look it up yourself
Ask-about note for Montana yearly filing: Annual report: the state publishes it at sosmt.gov, confirmed October 2026, so you can look it up yourself
Ask-about note for Montana report due date: the state publishes it at mca.legmt.gov, confirmed August 2026, so you can look it up yourself
Ask-about note for Mont: the state publishes it at mca.legmt.gov, confirmed August 2026, so you can look it up yourself
Ask-about note for Montana formation fee: Filing fee: the state publishes it at sosmt.gov, confirmed October 2026, so you can look it up yourself
Ask-about note for Montana registered agent statute: the state publishes it at mca.legmt.gov, confirmed October 2026, so you can look it up yourself
Montana Registered Agent.co pricing page, read November 13, 2026
Mainstay Filing Montana service page, read November 13, 2026
Registered Agent MT.org pricing page, read November 13, 2026