Skip to content
Formation Scorecard

Registered agent scorecard · Montana

3 Best Registered Agents in Montana (2026)

On the Formation Scorecard 2026 scorecard for registered agents in Montana the order reads Montana Registered Agent.co ($99 a year), Mainstay Filing ($149 a year) and Registered Agent MT.org ($99 a year). Montana Registered Agent.co posts the top score: a Montana specialist at $99 a year that supplies an in-state registered office street address.
Researched and written by the Formation Scorecard editorial team
Rank #1 Our top pick

1. Montana Registered Agent.co: best for the lowest yearly rate on this list

9.5 Editor score out of 10
$99 a year, no change on renewal

Montana Registered Agent.co leads the card: $99 a year, flat, with scans of served legal papers delivered online.

Montana Registered Agent.co puts a street address in the state on record for the company and scans served papers into your account.

Across three years it costs less than Mainstay Filing, and cost is one of our two heaviest criteria.

What you get

  • An in-state street address kept on the public record
  • Papers delivered to the registered office are scanned for you

Strengths

  • Forms LLCs too, with year-one agent service free
  • Undercuts Mainstay Filing on yearly price
  • A $99 plan with a flat renewal

Watch for

  • You file the annual report yourself
  • Limited to Montana; other states need another agent
Visit Montana Registered Agent.coPartner link. We may earn money if you buy. Montana Registered Agent.co: the full write-up
Rank #2 One agent, every state

2. Mainstay Filing: best for every state

9.2 Editor score out of 10
$149 a year, no change on renewal

Mainstay Filing takes second spot: $149 yearly for an agent that fits a company in one state or in fifty, with the first three government mailings each year scanned free.

Not formed yet? Mainstay's $199-a-year formation package covers the Montana filing along with the annual report.

Montana Registered Agent.co undercuts Mainstay Filing by $150 over three years, and that gap costs Mainstay points on cost.

What you get

  • An in-state street address on the public record
  • Served papers scanned and uploaded the day they arrive, free
  • The first three government mailings each year scanned at no cost
  • Compliance reminders

Strengths

  • $149 a year with no renewal step-up
  • Fits LLCs, corporations, LPs, LLPs and nonprofits
  • Served papers scanned on the day they arrive, free
  • First three government mailings each year scanned free

Watch for

  • Agent service alone costs $50 a year more than Montana Registered Agent.co
  • You file your own annual report on the agent-only plan
Visit Mainstay FilingPartner link. We may earn money if you buy. Mainstay Filing: the full write-up
Rank #3 Montana only

3. Registered Agent MT.org: best for Montana-based companies

8.9 Editor score out of 10
$99 a year, no change on renewal

Registered Agent MT.org takes third spot: $99 a year, flat, with scans of served legal papers delivered online.

The registered office comes from Registered Agent MT.org as an in-state address, with scans of served documents sent to your account.

Price for price and feature for feature, Montana Registered Agent.co and Registered Agent MT.org match, which leaves the order between them a narrow call.

What you get

  • A physical address in the state for the registered office
  • Online scans of each legal paper served on the company

Strengths

  • Undercuts Mainstay Filing on yearly price
  • $99 a year and no renewal bump
  • LLC formation available, first agent year thrown in

Watch for

  • You file the annual report yourself
  • Limited to Montana; other states need another agent
Visit Registered Agent MT.orgPartner link. We may earn money if you buy. Registered Agent MT.org: the full write-up

The 3 entries on one card

Place Service Card score Yearly cost Renews at Best for Go
1 Montana Registered Agent.co 9.5 $99 $99/yr The lowest yearly price we rank here Visit Montana Registered Agent.coPartner link. We may earn money if you buy.
2 Mainstay Filing 9.2 $149 $149/yr An agent for every state Visit Mainstay FilingPartner link. We may earn money if you buy.
3 Registered Agent MT.org 8.9 $99 $99/yr The lowest yearly price we rank here Visit Registered Agent MT.orgPartner link. We may earn money if you buy.

Every number out of 10 is an editorial mark from Formation Scorecard, produced with the criteria on How we rank, not a customer rating.

Montana registered agent cost in 2026: first year, renewal and the three-year tally

Service First year Second year Third year Three-year tally Holds its price at renewal
Montana Registered Agent.co $99 $99 $99 $297 Yes
Mainstay Filing $149 $149 $149 $447 Yes
Registered Agent MT.org $99 $99 $99 $297 Yes

Each price comes from the company's own site, read on November 12, 2026. Montana charges its own fees the same way whichever agent you name.

How the card was marked

Formation Scorecard scores cost across three years and coverage of the price at 25% each. Renewal terms, state-by-state fit and pricing clarity account for the other 50%. In Montana the tie was broken by cost across three years.

Montana Registered Agent.co tallies $297 across three years, $150 below Mainstay Filing. If Montana is the only state, fifty-state coverage adds little, and the lower yearly price takes the points.

Every criterion and weight appears on How we rank.

What Montana Secretary of State requires of a Montana registered agent (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. Statute: Mont. Code Ann. § 35-7-105.

The Montana annual report: fee, due date and your agent

Montana LLCs file the annual report every year. The fee is $20 and the date is April 15. Filing late means $15 more. The state sends related notices to your registered agent.

Montana registered agent: quick questions

Is a Montana LLC obliged to keep a registered agent?

It is. Montana wants every LLC to have a registered agent on file, and that agent must hold a street address inside the state.

What is the going yearly rate for a registered agent in Montana?

Yearly prices span $99 to $149, and each service holds its price when it renews.

Is it allowed to serve as my own registered agent?

Yes, if you satisfy the state's conditions. A commercial registered agent listed with the Secretary of State, or a noncommercial agent: an individual, including an owner, or an entity in Montana.

When must the Montana annual report be filed?

The deadline is April 15. The state's fee is $20. A late filing is penalized with $15.

Which registered agents sit on this card?

Montana Registered Agent.co ($99 a year), Mainstay Filing ($149 a year) and Registered Agent MT.org ($99 a year), top to bottom.

Which Montana registered agent scores best on value?

Montana Registered Agent.co, since $99 a year, steady at renewal, and the lowest yearly price on this list.

Keep reading

Where the figures come from

  1. Montana Secretary of State fee page and fee sheet: standard annual report fee, as of October 2026
  2. Montana yearly filing: Annual report: fee, official source, as of October 2026
  3. Montana yearly filing: Annual report: fee, official source, as of October 2026
  4. Montana report due date, as of August 2026
  5. Mont. Code Ann. § 35-8-201, as of August 2026
  6. Montana formation fee: Filing fee, official source, as of October 2026
  7. Montana registered agent statute, as of October 2026
  8. Read on November 12, 2026: pricing and service pages for Montana Registered Agent.co
  9. Read on November 12, 2026: Montana service page for Mainstay Filing
  10. Read on November 12, 2026: pricing and service pages for Registered Agent MT.org