Registered Agent by ZIP

Registered Agent by ZIP › Montana

Registered agent in Montana (2026)

Montana ZIP codes begin with 590-599. Required: every LLC needs an agent with an in-state street address Mainstay Filing, our best overall pick, serves Montana at $149 a year; the state fee to change agents is nothing.

  • Montana rules checked October 20, 2026

Montana agent requirements

Requirement
Required. A commercial registered agent listed with the Secretary of State, or a noncommercial agent: an individual, including an owner, or an entity in Montana.
Agent address
The address has to be an actual street address or rural route box number in Montana. A P.O. box alone is not enough.
ZIP code prefixes
590-599
Change-of-agent fee
None
Statute
Mont. Code Ann. § 35-7-105
Filing office
Montana Secretary of State
Best overall in Montana

Mainstay Filing

Our rating: 4.9 out of 5

$149 / year, same at renewal

  • Registered agent address in Montana
  • Mail and legal-document scanning and forwarding
  • Compliance reminders

Checked October 20, 2026.

Providers with a published Montana price

ProviderYear 1Renewal
Mainstay Filing$149$149
ZenBusiness$99$199
LegalZoom$249$249
MyLLC$129$129
Northwest Registered Agent$125$125
Bizee$149$149

Questions

Who can be a registered agent in Montana?

A commercial registered agent listed with the Secretary of State, or a noncommercial agent: an individual, including an owner, or an entity in Montana.

What address must a Montana registered agent have?

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 does it cost to change registered agents in Montana?

The state charges no fee to file the change (Mont. Code Ann. § 35-7-105).

Which ZIP codes are in Montana?

Montana ZIP codes begin with 590-599. The ZIP code tells you the state; the agent rules above apply in all of them.

Sources