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Researched and written by the Launchwise Review editorial team
Launchwise Review

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

Launch guide · Montana · LLC service

3 Best LLC Services in Montana (2026)

Researched and written by the Launchwise Review editorial team
For a 2026 launch in Montana, Launchwise Review grades LLC services this way: Mainstay Filing ($199), Registered Agent MT.org ($199) and Montana Registered Agent.co ($199). Mainstay Filing earns the top grade here: $199 a year covers the Montana filing, registered agent duty for the year and the annual report; it renews at $199.
1
Number one here

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

$199 yearly, state fee billed on top ($234 at checkout in all)

Our mark 9.3 out of 10

Top grade, Mainstay Filing: the Montana formation, your registered agent and the annual report are bundled at $199 a year.

When renewal comes, Mainstay prepares and files the annual report so it is off your list. The Montana fee is $20 every year, with a April 15 deadline, and being late adds $15; Mainstay passes the fee along at cost.

It runs $200 above Registered Agent MT.org across three years; the extra paperwork it handles is worth that to us.

In the price

  • The formation filing, done for you
  • Registered agent duty for the whole year
  • Annual report, prepared and filed each cycle
  • Your EIN application, done for you

Pros

  • Renews at $199 without add-ons
  • Montana's fee goes through at cost
  • A single $199 yearly price that covers the annual report
  • Your EIN application is included

Less good

  • After year one the agent portion is $100 a year above Registered Agent MT.org's
Visit Mainstay FilingPartner link. We may earn money if you buy.
Read the Mainstay Filing launch review
2
Best local option

2. Registered Agent MT.org: best for a Montana LLC that wants to stay close to home

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

Our mark 9.1 out of 10

Next up is Registered Agent MT.org: it forms the LLC in Montana for $199 over the state's fee, with the registered agent free for year one, and keeps the agent for $99 a year.

You get an in-state street address for the registered office, and any papers served on the company are scanned into your online account.

The annual report is not in its published price, so that task stays on your list with Montana, due every year.

In the price

  • LLC filing done for you
  • Year-one registered agent service

Pros

  • Covers the first year of registered agent service
  • Then $99 a year to keep the agent
  • Forms the LLC for $199, state fee extra

Less good

  • No annual report filing in the price
  • EIN application costs extra ($99)
Visit Registered Agent MT.orgPartner link. We may earn money if you buy.
Read the Registered Agent MT.org launch review
3
Low renewal

3. Montana Registered Agent.co: best for a launch that stays in Montana

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

Our mark 8.9 out of 10

Rounding out the list is Montana Registered Agent.co: it forms the LLC in Montana for $199 over the state's fee, with the registered agent free for year one, and keeps the agent for $99 a year.

You get an in-state street address for the registered office, and any papers served on the company are scanned into your online account.

The annual report is not in its published price, so that task stays on your list with Montana, due every year.

Nothing in the published price or features separates Registered Agent MT.org from Montana Registered Agent.co; go with whichever you like.

In the price

  • LLC filing done for you
  • The first year of registered agent service

Pros

  • Covers the first year of registered agent service
  • Keeps your agent for $99 yearly
  • $199 to start the LLC, plus the filing fee

Less good

  • No annual report filing in the price
  • EIN application costs extra ($99)
Visit Montana Registered Agent.coPartner link. We may earn money if you buy.
Read the Montana Registered Agent.co launch review

The 3 grades at a glance

Place Company Launch grade Service price Second year Best fit Go
1 Mainstay Filing 9.3 $199 $199/yr Formation, agent and annual report wrapped into one price Visit Mainstay FilingPartner link. We may earn money if you buy.
2 Registered Agent MT.org 9.1 $199 $99/yr A Montana launch on a tight budget Visit Registered Agent MT.orgPartner link. We may earn money if you buy.
3 Montana Registered Agent.co 8.9 $199 $99/yr A Montana launch on a tight budget Visit Montana Registered Agent.coPartner link. We may earn money if you buy.
Each grade out of 10 reflects our editors' reading of the weighted criteria on How we rank, not a customer rating.

Montana LLC service cost in 2026: first year, renewals, three-year total

Company Year 1 Year 2 Year 3 Three years, total Files the annual report for you
Mainstay Filing $199 $199 $199 $597 Yes
Registered Agent MT.org $199 $99 $99 $397 No
Montana Registered Agent.co $199 $99 $99 $397 No
Prices were copied from each company's own pages on November 12, 2026. Add Montana's $35 filing fee to any row; it is not in the totals.

The thinking behind the order

Launchwise Review puts 26% on cost to launch and stay and 26% on launch paperwork handled, then spreads 48% over renewal behavior, state match and price transparency. For Montana, the call came down to launch paperwork handled.

The state's report comes annually in Montana, at $20, and a late one adds $15. Mainstay's price takes that filing off your list and Registered Agent MT.org's does not, so coverage beat Registered Agent MT.org's lower three-year cost.

Every criterion and weight is listed on How we rank.

Launching in Montana: the state filing fee and form

Plan on $35 at the Montana Secretary of State when you file the Articles of Organization. Each company below adds that state fee at cost.

Your Montana LLC after launch: the upkeep list

Next on the list: the annual report, every year, due April 15. Set aside $20 for the state. Late filing adds $15. Every LLC must name a registered agent with an in-state street address.

Quick answers about Montana LLC services

What will it cost to launch an LLC in Montana?

The state filing fee is $35; add a service fee of $199.

Which form starts the LLC?

Look for the Articles of Organization at the Montana Secretary of State.

Is a registered agent required on the Montana formation form?

Yes. You name one on the formation form and keep one on file, with a street address in Montana.

What stays on the to-do list after the LLC is launched?

The annual report is the recurring item, filed every year with a April 15 deadline and a $20 state charge.

Will the EIN application be handled in this price?

Mainstay Filing folds it into the yearly price. The application runs $99 at Registered Agent MT.org and Montana Registered Agent.co. Founders can also get an EIN from the IRS directly, with no fee.

Which service is the best start for a new Montana LLC?

Mainstay Filing, because one $199 yearly price filing the Montana formation, serving as your registered agent and filing the annual report, then renewing at $199.

Keep reading

Sources and dates

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