Registered agent ratings · Montana
3 Best Registered Agents in Montana (2026)
1. Mainstay Filing: best for any state
$149 a year, level on renewal
Mainstay Filing is rated first: $149 a year, level on renewal, with papers served on the company scanned the same business day at no fee.
Company not formed yet? Mainstay's $199-a-year package puts the Montana filing and the annual report on one line.
On three-year sums Mainstay is $150 above Registered Agent MT.org; the wider coverage justifies that gap in the rating.
What you get
- A registered office address in whichever state you need
- Same-business-day scanning of served papers, at no cost
- The first three government mailings a year, scanned at no charge
- Compliance reminders
Pros
- Accepts LLCs, corporations, LPs, LLPs and nonprofits
- $149 a year, level on renewal
- Same-business-day scans of service of process, no fee
- Government mail scanned free, first three pieces a year
Trade-offs
- Agent alone is $50 a year above Registered Agent MT.org
- Filing the annual report requires the formation package
2. Registered Agent MT.org: best for the lowest yearly amount on this list
$99 a year, level on renewal
Registered Agent MT.org is rated second: $99 a year, flat, with online scans of legal papers served.
Through Registered Agent MT.org, the company's registered office has a street address in the state, and served legal papers are scanned online.
What you get
- A physical street address in the state
- Each paper served on the company is scanned into your account
Pros
- A smaller yearly line than Mainstay Filing
- Formation comes with a free first agent year
- $99 annually, no renewal increase
Trade-offs
- The annual report remains your own filing
- Montana only; other states need another agent
3. Montana Registered Agent.co: best for businesses in Montana
$99 a year, level on renewal
Montana Registered Agent.co is rated third: $99 a year, flat, with online scans of legal papers served.
Montana Registered Agent.co supplies the state street address for the registered office and posts scans of served papers to your account.
Nothing in the published amounts or features separates Registered Agent MT.org from Montana Registered Agent.co; take either.
What you get
- A physical street address in the state
- Each paper served on the company is scanned into your account
Pros
- A $99 plan that stays level
- A smaller yearly line than Mainstay Filing
- LLC formation offered, with year-one agent service
Trade-offs
- The annual report remains your own filing
- Montana only; other states need another agent
The 3 ratings summarized
| Line | Service | Rating | Yearly amount | Renewal amount | Best for | Open |
|---|---|---|---|---|---|---|
| 1 | Mainstay Filing | 9.2 | $149 | $149/yr | A single agent in any state | Visit Mainstay FilingPartner link. We may earn money if you buy. |
| 2 | Registered Agent MT.org | 9.0 | $99 | $99/yr | The lowest yearly price we rank here | Visit Registered Agent MT.orgPartner link. We may earn money if you buy. |
| 3 | Montana Registered Agent.co | 8.9 | $99 | $99/yr | The lowest yearly price we rank here | Visit Montana Registered Agent.coPartner link. We may earn money if you buy. |
Montana registered agent amounts for 2026: year one, renewal and three-year sum
| Service | Year one | Year two | Year three | Three-year sum | Same amount on renewal |
|---|---|---|---|---|---|
| Mainstay Filing | $149 | $149 | $149 | $447 | Yes |
| Registered Agent MT.org | $99 | $99 | $99 | $297 | Yes |
| Montana Registered Agent.co | $99 | $99 | $99 | $297 | Yes |
How the lines were rated
Weights: 27% cost over years one to three, 27% inclusions per price, 46% shared by renewal price and terms, fit with state rules and price clarity. Inclusions per price decided Montana.
Mainstay's agent plan rates higher on coverage: served papers are scanned the same business day at no fee, one amount applies in all fifty states and three government mailings a year are scanned free. Registered Agent MT.org is the cheaper line, and the gap is narrow.
Each criterion and its weight is listed on How we rank.
Montana registered agent requirements per Montana Secretary of State (official)
Every LLC must name a registered agent with an in-state street 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. Authority cited: Mont. Code Ann. § 35-7-105.
The Montana annual report: amount, date and agent
Montana LLCs owe the annual report every year, due April 15. Amount: $20. Late filing adds $15. The state sends notices about it to your registered agent.
Montana registered agent: your questions
Does a Montana LLC need to appoint a registered agent?
It does. Montana treats a registered agent as a standing requirement, and the agent needs a street address within the state.
What is the yearly price of a registered agent in Montana?
Yearly amounts run $99 to $149, and each holds on renewal.
Is it permitted to be your own registered agent?
Yes, when the state's conditions are met. A commercial registered agent listed with the Secretary of State, or a noncommercial agent: an individual, including an owner, or an entity in Montana.
On what date is the Montana annual report due?
Due April 15. Fee: $20. Late penalty: $15.
Which registered agents are rated on this page?
Mainstay Filing ($149 a year), Registered Agent MT.org ($99 a year) and Montana Registered Agent.co ($99 a year), highest rated first.
Which Montana registered agent has the best value rating?
Mainstay Filing, as $149 for a plan that applies in every state, $149 on renewal.
Source lines
- Montana Secretary of State fee page and fee sheet: standard annual report fee (ledger date October 2026)
- Montana yearly filing: Annual report: fee, official source (ledger date October 2026)
- Montana yearly filing: Annual report: fee, official source (ledger date October 2026)
- Montana report due date (ledger date August 2026)
- Mont. Code Ann. § 35-8-201 (ledger date August 2026)
- Montana formation fee: Filing fee, official source (ledger date October 2026)
- Montana registered agent statute (ledger date October 2026)
- Mainstay Filing, Montana service page: amounts read November 12, 2026
- Registered Agent MT.org, pricing and service pages: amounts read November 12, 2026
- Montana Registered Agent.co, pricing and service pages: amounts read November 12, 2026