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Foreign registration price index · Montana

3 Best Foreign Registration Services in Montana (2026): Price Index

Montana, 2026: Montana Registered Agent.co ($199), Registered Agent MT.org ($199) and Mainstay Filing ($199) hold the first lines of the foreign registration services index, best value first. Every line carries the same $70 state registration fee; the services alone reach $397 to $497 in three years.
Entries by the LLC Price Index editorial team

Index basis: Index of five columns: three-year cost (38%), coverage per dollar (32%), renewal step, crossover year and price transparency. Basis explained

The Montana tally

State registration line$70mca.legmt.gov (read October 2026) per the state
First-year range$199Service lines only
Three-year column$397 to $497First year plus two later years
State subtotal at year 3$70Whoever registers
CrossoverNo crossingSubtotals keep their order

Montana ledger, best value first

Service prices only. The $70 state fee is identical on every line.
1

1. Montana Registered Agent.co: best for a stripped-down registration

Best value on the ledger
First year$199
Years 2 and on$99/yr
Three-year sum$397
$199 on top of $70 at the state; renewal $99

Montana Registered Agent.co takes line one of the Montana index: $199 to register with a year of agent service included, then $99 each year.

Cost settles it: three years here come in under Mainstay Filing.

Line includes

  • The Montana registration, filed
  • Agent service in year one

Credits

  • A service fee of $199
  • Agent service free for year one
  • $99 a year for the agent afterward

Debits

  • Covers Montana only, so the home state needs its own agent
2

2. Registered Agent MT.org: best for a single added state

Montana only
First year$199
Years 2 and on$99/yr
Three-year sum$397
$199 on top of $70 at the state; renewal $99

Registered Agent MT.org is line 2: $199 to register with a year of agent service included, then $99 each year.

Same year-one and renewal prices as Montana Registered Agent.co.

Line includes

  • The Montana registration, filed
  • Agent service in year one

Credits

  • Agent service free for year one
  • A service fee of $199
  • $99 a year for the agent afterward

Debits

  • Covers Montana only, so the home state needs its own agent
3

3. Mainstay Filing: best for companies on the move

Covers the most items
First year$199
Years 2 and on$149/yr
Three-year sum$497
$199 on top of $70 at the state; renewal $149

Line 3 goes to Mainstay Filing: a $199 service charge in any state, first agent year thrown in.

The $100 three-year difference from Montana Registered Agent.co fixes its position.

After the free year, the agent costs $149 annually, whichever state applies.

Line includes

  • Registration filed on your behalf
  • Registered agent free for the first year
  • Works in all fifty states

Credits

  • $199 added to Montana's fee
  • Year-one agent service is covered
  • All fifty states covered

Debits

  • A higher agent renewal ($149)

Cumulative ledger

LineProviderTotal, year 1Total, year 2Total, year 3Total, year 5
1Montana Registered Agent.co$199$298$397$595Visit Montana Registered Agent.coPartner link. We may earn money if you buy.
2Registered Agent MT.org$199$298$397$595Visit Registered Agent MT.orgPartner link. We may earn money if you buy.
3Mainstay Filing$199$348$497$795Visit Mainstay FilingPartner link. We may earn money if you buy.
Service fees only, taken from each company's prices on November 13, 2026. The subtotals keep one order for a full decade.

Subtotal calculator

Subtotals for 1 to 5 years. State fees are omitted because every line carries the same ones.
3 years of service fees: Montana Registered Agent.co $397, Registered Agent MT.org $397, Mainstay Filing $497. Line with the smallest sum: Montana Registered Agent.co.

What Montana charges itself

EntryAmountCited from
Registration filing charge$70mca.legmt.gov (read October 2026) per the state
Paid to the state by year 3$70Our sum
State subtotal over three years = filing + the year-two and year-three reports + any minimum tax. Costs with no fixed amount stay out.

How the index came out

Three-year cost index settled line one. That column is 38% of the index; coverage per dollar, renewal step, crossover year and price transparency make up the rest.

Three years with Montana Registered Agent.co cost $397, while Mainstay Filing runs $100 higher.

Official Montana foreign LLC registration fee and rules

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

Skipping registration invites no suits as plaintiff (MCA 35-8-1002(1)); a per-day penalty of $5.

Quoted from: mca.legmt.gov (read October 2026) per the state

If you file it yourself

With no service, three years cost $70 in state fees alone. Each service adds its own line, $397 to $497 over the same period.

Quick answers

What does Montana charge an out-of-state LLC to register?

$70 as the state fee, with another $199 for a service.

What is the three-year subtotal for these services?

$397 to $497 in service fees, state charges excluded.

Which document does the registering?

The registering document is Application for Certificate of Authority (foreign limited liability company), and the Montana Secretary of State, Business Services is the office that takes it.

What recurring filing comes after registration?

Next comes the annual report, which carries no fee.

When does one line pass another in total cost?

Not within ten years; no line overtakes another.

Which foreign registration service indexes best in Montana?

By our value index, the Montana lines run Montana Registered Agent.co, Registered Agent MT.org and Mainstay Filing. Montana Registered Agent.co leads on three-year cost index.

Source lines

  1. Montana Secretary of State fee is backed by sosmt.gov, read October 2026.
  2. Montana yearly filing: Annual report is backed by sosmt.gov, read October 2026.
  3. Montana yearly filing: Annual report is backed by sosmt.gov, read October 2026.
  4. Montana report due date is backed by mca.legmt.gov, read August 2026.
  5. Mont is backed by mca.legmt.gov, read August 2026.
  6. Montana formation fee: Filing fee is backed by sosmt.gov, read October 2026.
  7. Montana registered agent statute is backed by mca.legmt.gov, read October 2026.
  8. Montana Secretary of State, register is backed by help.sosmt.gov, read October 2026.
  9. MCA 35-8-1001, transacting business is backed by mca.legmt.gov, read October 2026.
  10. MCA 35-8-1002, consequences is backed by mca.legmt.gov, read October 2026.
  11. MCA 35-8-1003, application contents is backed by mca.legmt.gov, read October 2026.
  12. Ledger input from the Montana Registered Agent.co pricing page, November 13, 2026
  13. Ledger input from the Registered Agent MT.org pricing page, November 13, 2026
  14. Ledger input from the Mainstay Filing Montana service page, November 13, 2026