Best Registered Agent by State

Best Registered Agent by State › Montana

Registered agent in Montana: requirements, real cost and our pick

Our pick for Montana is Mainstay Filing: $149 a year, the same at renewal. Every LLC must name a registered agent with an in-state street address.

What Montana requires

Agent neededRequired (Mont. Code Ann. § 35-7-105)
Who can serveA commercial registered agent listed with the Secretary of State, or a noncommercial agent: an individual, including an owner, or an entity in Montana.
AddressThe address has to be an actual street address or rural route box number in Montana. A P.O. box alone is not enough.
Change of agentNo state fee, filed with Montana Secretary of State
Do it yourself?Check the rule on who may serve before deciding to do it yourself.

Checked October 20, 2026.

Our pick and the field

Registered agent prices for Montana read October 2026, from each provider’s own page.
ProviderYear 1RenewalWhat the page lists
Mainstay Filing$149$149Registered agent all year; service of process scanned and uploaded the same business day
ZenBusiness$99$199Document receipt, scanning and upload to a dashboard; email notifications
Northwest Registered Agent$125$125Its address on public filings; scans of state and legal mail; up to 5 pieces of other business mail scanned free a year; domain, website, email and phone line
MyLLC$129$129As low as $87/yr if you prepay five years.
Bizee$149$149Compliance notifications; its address on the public record
LegalZoom$249$249Alerts when mail arrives; documents scanned and uploaded; annual report reminders

What an agent does and doesn’t do here

It takes service of process and official state mail. It is not a business mailing address, and cannot stand in for one, for example for bank verification. See the full list.

Why prices differ so much in Montana

Published year-one prices here run $99 to $249, a $150 spread. ZenBusiness is lowest in year one and Northwest Registered Agent lowest at renewal. Three things drive the spread: a first-year price that renews higher, a free year that needs a formation order, and what is bundled, from scanning to annual-report reminders. Compare the renewal column, not the first one.

What is the best registered agent in Montana?

Mainstay Filing: $149 a year, the same at renewal. 5 other providers have a published Montana price, from $99 to $249 in year one.

Can I be my own registered agent in Montana?

Check the rule on who may serve before deciding to do it yourself. A commercial registered agent listed with the Secretary of State, or a noncommercial agent: an individual, including an owner, or an entity in Montana.

How do I change my registered agent in Montana?

File the state’s change form with Montana Secretary of State; the fee is nothing (Mont. Code Ann. § 35-7-105).