3 Best Foreign Registration Services in Montana (2026): Fee Schedule
We rank Montana foreign registration services for 2026 as Mainstay Filing ($199), Montana Registered Agent.co ($199) and Registered Agent MT.org ($199), best value first. Registration in Montana costs $70. Three years of service charges add $397 to $497.
Prepared by the Agent Fee Tables editorial team ·
Schedules ordered by: Charges count 39% and duties 31% (the full order)
Summary of fees
Fee at the filing office$70mca.legmt.gov {fee list dated October 2026}
What the first year bills$199Provider charges alone
What three years bill$397 to $497Year one and two renewals
State fees by year three$70Not used in the order
Break-evenCharges stay apartOrder holds to year 10
Montana ranking
Service fees only. Every schedule is subject to the same $70 state fee.
#Opening chargeRenewal chargeCharges, three years
1
1. Mainstay Filing: best for LLCs still growing
Ranked first
Opens at $199; later years $149
Opening charge
$199
Charge from year two
$149/yr
Charges, three years
$497
Schedule one belongs to Mainstay Filing. Montana registration at $199 plus state fees, with year-one agent service paid for.
Three years cost $100 more than Montana Registered Agent.co, but the extra duties it covers weigh more in the order.
Every line on this page cites the state's own publication. The three-year state figure adds the filing, the next two reports and any minimum tax.
The order behind Montana
Mainstay Filing did better than Montana Registered Agent.co on duties inside the charge, a 31% measure.
With the LLC in two states, coverage decided it.
The Montana foreign LLC registration fee and rules, in the state's own words
Doing business in Montana through an LLC from elsewhere means filing the Application for Certificate of Authority (foreign limited liability company) with the Montana Secretary of State, Business Services, at $70.
An LLC that never registers can face loss of the right to act as plaintiff in Montana (MCA 35-8-1002(1)); plus a daily penalty of $5.
Official text: mca.legmt.gov {fee list dated October 2026}
Filing it yourself
Do it alone and Montana still collects $70 over three years, plus you complete every form. A service charges $397 to $497 to take that off you.
Common questions
What does Montana charge a foreign LLC to register?
$70 in state fees, and a service adds $199 in year one.
What do these schedules add up to over three years?
Service charges after three years: $397 to $497.
Which form completes the registration?
Complete Application for Certificate of Authority (foreign limited liability company) and send it to the Montana Secretary of State, Business Services.
Which recurring filing comes after registration?
The annual report, which has no fee.
When does one schedule pass another in total charges?
Not in ten years: the order of running totals does not change.
Which foreign registration service is the best value for Montana?
Best value to least: Mainstay Filing, Montana Registered Agent.co and Registered Agent MT.org.