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Registered agent worksheets · Montana

3 Best Registered Agents in Montana (2026): Worked Prices

Result for Montana in 2026: Registered Agent MT.org ($99/yr), Mainstay Filing ($149/yr) and Montana Registered Agent.co ($99/yr), in that order, among registered agents. The rows start at $99 to $149 for the first year and total $297 to $447 after three.
Worked by the Formation Math editorial team

↓ Sorted by: Cost first (42%), items covered second (28%), three smaller checks after. See the working

The working so far

Agent requirement Yes mca.legmt.gov (checked October 2026) as the source
First-year results $99 to $149 Annual bill
Sum of years 1 to 3 $297 to $447 Service fees only, 3 years
Annual report $20 a year sosmt.gov (checked October 2026) as the source
Crossing point Not within ten years Rows keep their positions through year 10

Montana, ranked by value

Each row shows year one, the price after that and the three-year sum. Which agent you pick leaves state fees alone.

1
Highest score

1. Registered Agent MT.org: best for owners who watch each dollar

$99 yearly; the renewal price is $99
Year-1 price $99
Renewal price $99/yr
Sum of 3 years $297

Row one is Registered Agent MT.org. The math: $99 a year, $99 when it renews, for an LLC that never leaves the state.

Its three-year total is below Mainstay Filing's, and the three-year total counts 42% of the score.

The price buys

  • An in-state office address
  • Legal documents posted to your account

Adds up

  • Lower yearly total than Mainstay Filing
  • $99 a year, flat at renewal

Does not add up

  • A one-state service
  • The annual report remains your task
2
Any state

2. Mainstay Filing: best for one price that holds in every state

$149 yearly; the renewal price is $149
Year-1 price $149
Renewal price $149/yr
Sum of 3 years $447

Mainstay Filing is row 2: $149 a year now and in whichever state the company registers next.

Registered Agent MT.org is $150 lower across three years, which is enough to rank ahead.

The price buys

  • The registered office, on record
  • Three government mailings per year, scanned for free
  • Works for LLCs, corporations, LPs, LLPs and nonprofits

Adds up

  • $149 every year
  • Identical price in all fifty states

Does not add up

  • A yearly gap of $50
  • Covers the agent role only
3
Single-state plan

3. Montana Registered Agent.co: best for another in-state option

$99 yearly; the renewal price is $99
Year-1 price $99
Renewal price $99/yr
Sum of 3 years $297

Montana Registered Agent.co fills row 3: $99 a year, $99 when it renews, for an LLC that never leaves the state.

No difference in price from Registered Agent MT.org.

The price buys

  • An in-state office address
  • Legal documents posted to your account

Adds up

  • Lower yearly total than Mainstay Filing
  • $99 a year, flat at renewal

Does not add up

  • A one-state service
  • The annual report remains your task

Cumulative cost, year by year

No. Provider Year 1 total Total at year 2 Total at year 3 Total at year 5
1 Registered Agent MT.org $99 $198 $297 $495 Visit Registered Agent MT.org Partner link. We may earn money if you buy.
2 Mainstay Filing $149 $298 $447 $745 Visit Mainstay Filing Partner link. We may earn money if you buy.
3 Montana Registered Agent.co $99 $198 $297 $495 Visit Montana Registered Agent.co Partner link. We may earn money if you buy.

Year one plus renewals, from the prices read on November 13, 2026. No row passes another within ten years.

Check the math yourself

Pick a number of years and each row's running sum appears.

Adding up 3 years: Registered Agent MT.org $297, Mainstay Filing $447, Montana Registered Agent.co $297. Smallest total: Registered Agent MT.org.

Official state amounts

Term Value Where it comes from
Formation charge $35 sosmt.gov (checked October 2026) as the source
Annual report $20 every year sosmt.gov (checked October 2026) as the source
Cost of missing the deadline $15 sosmt.gov (checked October 2026) as the source
State fees added over 3 years $75 Adds the rows above

To get the three-year state figure, add the filing fee, the reports due in years two and three, and any yearly minimum tax. Costs with no fixed amount, such as newspaper publication, are mentioned but not added.

The working behind Montana

For Montana, the term that decided it was three-year total (42% of the score), where Registered Agent MT.org came out ahead.

Registered Agent MT.org adds up to $297 after three years, $150 less than Mainstay Filing.

Montana registered agent rules, from the source (Montana Secretary of State)

Every LLC must name a registered agent with an in-state street address.

A commercial registered agent listed with the Secretary of State, or a noncommercial agent: an individual, including an owner, or an entity in Montana. (Mont. Code Ann. § 35-7-105)

The address has to be an actual street address or rural route box number in Montana. A P.O. box alone is not enough.

Cited at: mca.legmt.gov (checked October 2026) as the source

If you skip the service

Choosing no service costs an eligible owner nothing extra. The rows above sell time at $99 to $149 a year.

Montana price questions, answered

What does a registered agent in Montana cost per year?

$99 to $149 a year across our rows.

What do three years of agent service cost?

$297 to $447 across the rows, not counting state fees.

Does Montana require a registered agent for an LLC?

Yes. Every LLC must name a registered agent with an in-state street address.

Can the owner be the registered agent?

Yes, when you qualify under the rules listed here.

What does the state collect from the LLC each year?

The recurring item is the annual report, $20 annually (April 15).

In what year does one service pass another in total cost?

They stay in the same order for ten years.

Which registered agent is best value in Montana?

From the top: Registered Agent MT.org, Mainstay Filing and Montana Registered Agent.co.

Next worksheets

Registered agent worksheets, all 50 states Best registered agents overall The method

Inputs and sources

  1. Source of Montana Secretary of State fee: sosmt.gov, October 2026.
  2. Source of Montana yearly filing: Annual report: sosmt.gov, October 2026.
  3. Source of Montana yearly filing: Annual report: sosmt.gov, October 2026.
  4. Source of Montana report due date: mca.legmt.gov, August 2026.
  5. Source of Mont: mca.legmt.gov, August 2026.
  6. Source of Montana formation fee: Filing fee: sosmt.gov, October 2026.
  7. Source of Montana registered agent statute: mca.legmt.gov, October 2026.
  8. Registered Agent MT.org pricing page, read on November 13, 2026 for the inputs
  9. Mainstay Filing Montana service page, read on November 13, 2026 for the inputs
  10. Montana Registered Agent.co pricing page, read on November 13, 2026 for the inputs