How to Change Your Registered Agent in Montana (2026)
To change your Montana registered agent, sign in to the state's business filing portal. Choose the Registered Agent/Office Change by Entity action from your business record. There's no filing fee. You don't need a lawyer.
You do need the new agent's consent. You don't need a separate signed form for it, though. Filing the change is itself the entity's legal affirmation that the new agent agreed to serve. No member vote or manager approval is required first.
Montana only accepts this filing online. It goes through the same portal used for every other business record update. No mailing address or paper option is published anywhere on the Secretary of State's current site.
Quick Summary
- The change filing itself is free, but a paid registered agent service still bills you its own yearly rate on top of that.
- Whether your new agent is a person or a commercial service, Montana treats your filing itself as their proof of consent.
- Your new registered address has to be a real Montana street address. A P.O. box gets the filing rejected.
| Item | Detail |
|---|---|
| Filing action | Registered Agent/Office Change by Entity |
| Filing fee | No fee |
| Statute | § 35-7-108, MCA |
| Consent required | Yes |
| Member/governor vote required | No |
| Filing channel | Online only |
| Portal | Montana Business Filing Portal (biz.sosmt.gov) |
| Annual Report deadline | April 15 |
| Annual Report fee | Waived on time, $35 if filed late |
| Physical street address required | Yes, no P.O. box |
Who Can Be a Montana Registered Agent
Montana lets two kinds of agents serve. One is a resident person. The other is a business entity allowed to operate in the state.
That second group splits again into commercial and noncommercial agents. A commercial agent has filed a listing with the Secretary of State, and it shows up on the state's public agent list. Every paid agent service falls into this group.
A noncommercial agent has not filed that listing. Business owners who act as their own registered agent fall here, and so does any friend or worker named for the role.
Either kind needs a real street address inside Montana. A rural route box works, but a plain P.O. box does not [1].
Whichever type you pick, the job stays narrow. Montana law only asks the agent to forward any legal notice or court paper the state sends, and to tell the business when one arrives.
Nothing more is asked by statute. So picking a good agent mostly comes down to trust in that one task.
How to Change Your Montana Registered Agent
Montana's agent law spells out the steps in one section, section 35-7-108 [2]. Once your new agent is set, you have three real paths to get the state's record fixed.
1. Using a Professional Registered Agent Service
A paid service takes the filing off your plate. Its staff know the portal. You send them your new agent's details once, and they do the rest.
That ease isn't free, though. You pay the firm's own yearly rate. That's on top of whatever the state charges, which for this one filing is nothing. Compare current options on the best registered agent services in Montana page.
2. Filing Directly Through the Online Portal
Doing it yourself starts inside your business record on the Business Filing Portal. Look for Registered Agent/Office Change by Entity among the filing options there. Enter your new agent's name and Montana street address, then submit.
Nothing gets mailed and nothing needs a wet signature. Per the statute, the change is legally effective on the date the state files it, not on some later processing date.
3. Riding the Annual Report
Every Montana business owes an Annual Report by April 15 each year, filed through the same portal. The filing window opens January 1, so you have over three months to submit it. That filing can also update the registered agent alongside your mailing address and other business details.
If your window between January and mid-April lines up, you can skip a separate change filing entirely. The Annual Report itself has been fee-waived on time for four years running. File it late, though, and the charge is a flat $35.
Riding the Annual Report only works if your timing matches its window. Outside that stretch, the standalone Registered Agent/Office Change filing works year-round. No deadline pressure applies either way.
Montana's own site doesn't publish a standard turnaround estimate for either filing. If you're still forming the company rather than switching agents, start with the best LLC formation services in Montana guide instead. Rules for this same switch vary by state. Browse the full registered agent services rankings, or see our guide to changing a registered agent for how other states compare to Montana's process.
FAQs
What Does It Cost to Change a Montana Registered Agent?
Filing the change costs nothing through the state portal. If you hire a professional registered agent service instead, that provider sets its own separate yearly price, which the state doesn't regulate.
Can I Be My Own Registered Agent in Montana?
Yes, you can serve as your own Montana registered agent. You just need a physical street address in the state, which makes you a noncommercial agent under state law.
Does Filing the Change Require the New Agent's Signature?
No. Filing the change is itself legal proof the new agent agreed to serve, so Montana doesn't require a separate signature or consent form.
Does Montana Let You Change Your Registered Agent on the Annual Report?
Yes, Montana lets you change your registered agent on the Annual Report. That filing updates your agent along with your mailing address, as long as you submit it by April 15.
How Long Does It Take Montana to Process a Registered Agent Change?
Montana doesn't publish a standard time to process a registered agent change. Build in some buffer before a deadline you can't move, and check the portal for your submission's current status.
References:
- https://mca.legmt.gov/bills/mca/title_0350/chapter_0070/part_0010/section_0040/0350-0070-0010-0040.html
- https://mca.legmt.gov/bills/mca/title_0350/chapter_0070/part_0010/section_0080/0350-0070-0010-0080.html
