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What foreign registration costs by state / Montana

3 Best Foreign Registration Services in Montana (2026): What You Pay

Registered Agent MT.org ($199), Montana Registered Agent.co ($199) and Mainstay Filing ($199) give you the best value among Montana foreign registration services for 2026, in that order. Your budget has two parts: $70 to the state, and $397 to $497 for a service across three years.
Written by the Price Your LLC editorial team

↓ Ranked for you by: Ranking = 38% what you spend + 31% work covered + three smaller factors (details)

The short version

Registration fee paid to the state $70 mca.legmt.gov (we looked on October 2026, so you can too)
Your first-year spend $199 The state fee is extra
Your three-year spend $397 to $497 First year and both renewals
State fees by year three $70 Official amounts only
Bills cross in Not within ten years Order never flips

Your Montana options

Service prices only. Every option comes with the same $70 state fee.

1
First choice

1. Registered Agent MT.org: best for one extra state

$199 on top of Montana's $70; renewal $99
You pay in year 1 $199
You pay after year 1 $99/yr
You pay over 3 years $397

Registered Agent MT.org ranks first. Three years of service fees come to $397.

A three-year bill under Mainstay Filing's earns the top place.

Your price covers

  • The Montana registration filing
  • Agent service for your first year

What you get

  • Agent renews at $99
  • Year-one agent covered
  • $199 for the registration

What to watch

  • The home state needs a different agent
2
Montana focus

2. Montana Registered Agent.co: best for one more state

$199 on top of Montana's $70; renewal $99
You pay in year 1 $199
You pay after year 1 $99/yr
You pay over 3 years $397

Next, Montana Registered Agent.co: three years of service fees come to $397.

Its prices match Registered Agent MT.org's exactly.

Your price covers

  • The Montana registration filing
  • Agent service for your first year

What you get

  • Agent renews at $99
  • $199 for the registration
  • Year-one agent covered

What to watch

  • The home state needs a different agent
3
All fifty states

3. Mainstay Filing: best for one fee wherever you register

$199 on top of Montana's $70; renewal $149
You pay in year 1 $199
You pay after year 1 $149/yr
You pay over 3 years $497

Mainstay Filing takes spot 3 because a $199 service fee that does not change by state, with first-year agent service included.

By year three it costs $100 more than Registered Agent MT.org.

Agent renewal, any state: $149 yearly.

Your price covers

  • Registration delivered to the state office
  • Registered agent costs you nothing in year one
  • One fee wherever you register

What you get

  • First-year agent service included
  • Same fee wherever you register
  • $199 above the state fee

What to watch

  • $50 above Registered Agent MT.org at renewal

Year-by-year totals

Pick Service You pay in year 1 You pay by year 2 You pay by year 3 You pay by year 5
1 Registered Agent MT.org $199 $298 $397 $595 Price out Registered Agent MT.org Partner link. We may earn money if you buy.
2 Montana Registered Agent.co $199 $298 $397 $595 Price out Montana Registered Agent.co Partner link. We may earn money if you buy.
3 Mainstay Filing $199 $348 $497 $795 Price out Mainstay Filing Partner link. We may earn money if you buy.

Looked at November 13, 2026. Every column adds another renewal. The order of totals stays put for ten years.

Your budget calculator

Tell us how many years you plan to keep the LLC and each service's running total updates.

Your spend for 3 years: Registered Agent MT.org $397, Montana Registered Agent.co $397, Mainstay Filing $497. The best total here is Registered Agent MT.org.

Montana fee list

What you pay for Amount Source
Registration filing $70 mca.legmt.gov (we looked on October 2026, so you can too)
State side, 3 years $70 Sum of the lines above

Think of the state total as one filing, two reports and a yearly minimum tax where it applies. Notices and similar costs are listed separately.

Notes on the order

Registered Agent MT.org wins your three-year spend, worth 38%, with Montana Registered Agent.co close behind.

The three-year column shows $397 for Registered Agent MT.org, $100 lower than Mainstay Filing.

What Montana charges you to register a foreign LLC and what it requires

Out-of-state LLCs doing business in Montana send $70 and the Application for Certificate of Authority (foreign limited liability company) to the Montana Secretary of State, Business Services.

If you never register, expect a closed door at Montana courts for your own lawsuits (MCA 35-8-1002(1)); a daily charge of $5.

As written: mca.legmt.gov (we looked on October 2026, so you can too)

Doing it alone

Go it alone and Montana still takes $70 over three years, and you complete every form yourself. A service charges $397 to $497 to take that over.

Questions

How much will it cost me to register my LLC in Montana?

$70 at the state office, with another $199 if you hire help.

What will these services cost me over three years?

Year one plus two renewals comes to $397 to $497.

Which form do I file to register?

You file Application for Certificate of Authority (foreign limited liability company) with the Montana Secretary of State, Business Services.

What do I file after I register?

You file the annual report next, and it costs nothing.

When does one service end up costing more than another?

Over ten years the totals never swap places.

Which foreign registration service is the best value for me in Montana?

Registered Agent MT.org is first for you, with Montana Registered Agent.co and Mainstay Filing after it.

See also

What foreign registration costs by state for all 50 states Best foreign registration services for anyone How we rank your options

Where we looked

  1. Montana Secretary of State fee traces back to sosmt.gov; we looked in October 2026.
  2. Montana yearly filing: Annual report traces back to sosmt.gov; we looked in October 2026.
  3. Montana yearly filing: Annual report traces back to sosmt.gov; we looked in October 2026.
  4. Montana report due date traces back to mca.legmt.gov; we looked in August 2026.
  5. Mont traces back to mca.legmt.gov; we looked in August 2026.
  6. Montana formation fee: Filing fee traces back to sosmt.gov; we looked in October 2026.
  7. Montana registered agent statute traces back to mca.legmt.gov; we looked in October 2026.
  8. Montana Secretary of State, register traces back to help.sosmt.gov; we looked in October 2026.
  9. MCA 35-8-1001, transacting business traces back to mca.legmt.gov; we looked in October 2026.
  10. MCA 35-8-1002, consequences traces back to mca.legmt.gov; we looked in October 2026.
  11. MCA 35-8-1003, application contents traces back to mca.legmt.gov; we looked in October 2026.
  12. On November 13, 2026 the Registered Agent MT.org pricing page page said this
  13. On November 13, 2026 the Montana Registered Agent.co pricing page page said this
  14. On November 13, 2026 the Mainstay Filing Montana service page page said this