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Filing Verdict

Rankings of registered agents, LLC formation and foreign registration services in all 50 states.

LLC service verdict · Montana

3 Best LLC Services in Montana (2026)

Filing Verdict's 2026 verdict on LLC services in Montana: Mainstay Filing ($199), Registered Agent MT.org ($199) and Montana Registered Agent.co ($199), in that order. Mainstay Filing takes first place: one $199 yearly price that files the Montana formation, acts as your registered agent and files the annual report, renewing at $199.
The Filing Verdict editorial team
Our top pick in Montana
Spot 1

1. Mainstay Filing: best for formation, agent and annual report for one price

$199 each year plus the state fee ($234 due at checkout)

9.5Editorial score
out of 10

Mainstay Filing wins here: $199 a year pays for the formation filing, a full year as your registered agent and the annual report, renewing at $199.

Mainstay files the annual report for you as part of the renewal. Montana charges $20 every year, due April 15, and a late filing adds $15; the state's fee is passed through at cost.

The three-year bill is $200 higher than Registered Agent MT.org's, and the wider coverage is worth that to us.

What you get

  • The formation filing, prepared and submitted for you
  • Service as your registered agent all year
  • The annual report, prepared and filed
  • The EIN application

What we like

  • One $199 yearly price that includes the annual report
  • $199 at renewal, nothing extra
  • Montana's fee is passed through at cost
  • The EIN application comes with it

Cons

  • From year two its agent costs $100 a year more than Registered Agent MT.org's
Visit Mainstay FilingPartner link. We may earn money if you buy. Our full Mainstay Filing verdict
Lower renewal than Mainstay
Spot 2

2. Registered Agent MT.org: best for a Montana LLC that plans to stay local

Formation $199, then $99 a year for the agent, plus the state fee

9.0Editorial score
out of 10

Second place goes to Registered Agent MT.org: a $199 formation fee on top of the state's own, then $99 a year for the agent.

The plan gives the company an in-state street address as its registered office, and papers served on the company are scanned to your online account.

The annual report filing is not in its published prices, so you file it with Montana yourself every year.

What you get

  • Formation prepared and filed
  • Year-one registered agent service

What we like

  • Includes the first year as your registered agent
  • $199, with the state filing fee on top
  • Then $99 a year for agent service

Cons

  • Does not take over the annual report
  • The EIN application is billed separately ($99)
Visit Registered Agent MT.orgPartner link. We may earn money if you buy. Our full Registered Agent MT.org verdict
Best local option
Spot 3

3. Montana Registered Agent.co: best for a local Montana filing

Formation $199, then $99 a year for the agent, plus the state fee

8.9Editorial score
out of 10

Third place goes to Montana Registered Agent.co: a $199 formation fee on top of the state's own, then $99 a year for the agent.

The plan gives the company an in-state street address as its registered office, and papers served on the company are scanned to your online account.

The annual report filing is not in its published prices, so you file it with Montana yourself every year.

Nothing in the published prices or features divides Registered Agent MT.org from Montana Registered Agent.co; pick either.

What you get

  • Formation prepared and filed
  • A year of registered agent service up front

What we like

  • Formation at $199 before the state fee
  • Includes the first year as your registered agent
  • $99 per year keeps the agent after year one

Cons

  • Does not take over the annual report
  • The EIN application is billed separately ($99)
Visit Montana Registered Agent.coPartner link. We may earn money if you buy. Our full Montana Registered Agent.co verdict

The 3 verdicts at a glance

No.ServiceVerdict scoreService feeYear twoBest forVisit
1Mainstay Filing9.5$199$199/yrFormation, agent and annual report, one price Visit Mainstay FilingPartner link. We may earn money if you buy.
2Registered Agent MT.org9.0$199$99/yrA Montana-only LLC watching its budget Visit Registered Agent MT.orgPartner link. We may earn money if you buy.
3Montana Registered Agent.co8.9$199$99/yrA Montana-only LLC watching its budget Visit Montana Registered Agent.coPartner link. We may earn money if you buy.
Scores come from Filing Verdict's editors, out of 10, using the criteria explained on How we rank; they are not customer ratings.

Montana LLC service prices for 2026: year one, renewals and three years

ServiceYear 1Year 2Year 3Total, 3 yearsAnnual report handled for you
Mainstay Filing$199$199$199$597Yes
Registered Agent MT.org$199$99$99$397No
Montana Registered Agent.co$199$99$99$397No
Prices were read from each company's own pages on November 12, 2026. Montana's $35 filing fee goes on top of every row and is not counted in these totals.

The reasoning behind the order

Two criteria lead Filing Verdict's method at 35% apiece: total over three years and paperwork the price handles. Renewal behavior, match to the state and up-front pricing share the other 30%, and Montana came down to paperwork the price handles.

Montana wants a report every year with a $20 state fee, and filing late adds $15. Mainstay's price includes that filing and Registered Agent MT.org's does not, so the coverage score outweighed Registered Agent MT.org's lower three-year cost.

The full list of criteria and weights is on How we rank.

Montana LLC filing fee and form: official figures

Filing the Articles of Organization costs $35 at the Montana Secretary of State. Each service on this page adds that fee on top of its own price, at cost.

Montana LLC upkeep after the filing

The annual report is filed every year, due April 15. The state fee is $20. A late filing adds $15. Every LLC must name a registered agent with an in-state street address.

Montana LLC service: questions answered

What does it cost to form an LLC in Montana?

The state filing fee is $35, and the service fee is $199.

Which form do I file to create the LLC?

You file the Articles of Organization with the Montana Secretary of State.

Does a Montana LLC have to name a registered agent?

Yes. Montana requires every LLC to keep a registered agent on file, and the agent needs a street address in the state.

Which yearly filings does a Montana LLC owe?

Just the annual report, every year, due April 15 ($20 state fee).

Does the price include the EIN application?

Mainstay Filing includes it in the yearly price. Registered Agent MT.org and Montana Registered Agent.co bill $99 extra. The IRS charges nothing for an EIN.

Which LLC service is the best pick in Montana?

Mainstay Filing, because the Montana formation, your registered agent and the annual report all sit in a single $199 yearly charge.

Keep reading

Sources and dates

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