Registered agent required
Yes
mca.legmt.gov, read October 2026
Registered agent guide · Montana
Montana Registered Agent Rules and Fees (2026): the Official Numbers and the 3 Best Agents
Mainstay Filing ($149 a year), Montana Registered Agent.co ($99 a year) and Registered Agent MT.org ($99 a year) come first, second and third for hiring a registered agent in Montana in 2026. Every Montana LLC must keep a registered agent on file. The state bills $20 per year, number 18th of 50.
Montana at a glance
18th
place among 50 states, one-year state cost
A low number means a low bill. See all 50 states ranked
Annual report
$20 / yr
Due date, in the state's own words: April 15. sosmt.gov, read October 2026
State charges over 1 year
$20
The recurring charges for one year
Montana ranking
Criteria in order of weight: three-year fees, coverage, renewal terms, fit with Montana, clear state fee (method).
1. Mainstay Filing: best for an agent that follows you across states
$149 yearly, then $149 yearly
First place goes to Mainstay Filing: a flat $149 yearly price from a provider that serves the whole country.
Budget $150 more than Montana Registered Agent.co across three years; fewer filings are left for you to do.
What the price takes in
- A Montana street address on the public record
- Scans papers served on the company the same business day, at no charge
- Scans the first three government letters each year, no charge
- Serves nonprofits, corporations, LPs and LLPs as well
In its favor
- Reaches all fifty states
- $149 per year with no step up
Against it
- A yearly premium of $50 over Montana Registered Agent.co
- This plan does not file reports
2. Montana Registered Agent.co: best for one state and one agent
$99 yearly, then $99 yearly
Number 2, Montana Registered Agent.co, for this reason: an in-state-only plan at $99 per year, then $99.
What the price takes in
- A real Montana street address
- Legal papers are scanned and uploaded for you
In its favor
- $99 annually
- Costs less each year than Mainstay Filing
Against it
- No cover outside this state
- Nothing is done about the annual report on your behalf
3. Registered Agent MT.org: best for Montana specialists
$99 yearly, then $99 yearly
Number 3, Registered Agent MT.org, for this reason: an in-state-only plan at $99 per year, then $99.
Its prices equal Montana Registered Agent.co's, so the two are close.
What the price takes in
- A real Montana street address
- Legal papers are scanned and uploaded for you
In its favor
- $99 annually
- Costs less each year than Mainstay Filing
Against it
- No cover outside this state
- Nothing is done about the annual report on your behalf
Compare the 3 picks
| No. | Provider | Price per year | Renewal price | Provider fees over 3 years | |
|---|---|---|---|---|---|
| 1 | Mainstay Filing | $149 | $149/yr | $447 | Visit Mainstay FilingPartner link. We may earn money if you buy. |
| 2 | Montana Registered Agent.co | $99 | $99/yr | $297 | Visit Montana Registered Agent.coPartner link. We may earn money if you buy. |
| 3 | Registered Agent MT.org | $99 | $99/yr | $297 | Visit Registered Agent MT.orgPartner link. We may earn money if you buy. |
Prices come from the companies' own pages, read November 13, 2026. Changing agents does not change what the state bills.
Montana registered agent calculator
Agent prices plus the state's recurring charges (the annual report from year 2). Formation fees are not counted.
Montana and the states around it in the ranking
The full table is at Registered agent rules by state, lowest bills first.
What Montana law says about the registered agent
Every LLC must name a registered agent with an in-state street address. The address has to be an actual street address or rural route box number in Montana. A P.O. box alone is not enough.
Who can act as agent: A commercial registered agent listed with the Secretary of State, or a noncommercial agent: an individual, including an owner, or an entity in Montana. See Mont. Code Ann. § 35-7-105.
Each year's state fees for a Montana LLC
What repeats: the annual report, at $20 every year, April 15. The penalty is $15.
Why the first pick is first
The criterion that decided Montana was paperwork inside the price, at 28%.
One agent for any state beat the single-state option.
Montana questions and answers
Are Montana LLCs obliged to keep a registered agent on file?
Yes. Every LLC must name a registered agent with an in-state street address.
Who can serve as the registered agent for Montana LLCs?
A commercial registered agent listed with the Secretary of State, or a noncommercial agent: an individual, including an owner, or an entity in Montana.
What does registered agent service cost in Montana each year?
Our picks cost $99 to $149 each year.
What state fees does an LLC pay every year?
The state collects $20 per year on our yearly measure, which is the annual report at $20 every year.
Which registered agents does this page rank?
Mainstay Filing ($149 a year), Montana Registered Agent.co ($99 a year) and Registered Agent MT.org ($99 a year), arranged by our ranking, best first.
Which registered agent would you choose?
Mainstay Filing, because $149 per year in every state, and the same at renewal. After it come Montana Registered Agent.co and Registered Agent MT.org.
Where these facts come from
- Backing for the numbers about Montana Secretary of State fee page and fee is found at sosmt.gov, which we read in October 2026, and you can check it there.
- Backing for the numbers about Montana yearly filing: Annual report: fee, official source is found at sosmt.gov, which we read in October 2026, and you can check it there.
- Backing for the numbers about Montana yearly filing: Annual report: fee, official source is found at sosmt.gov, which we read in October 2026, and you can check it there.
- Backing for the numbers about Montana report due date is found at mca.legmt.gov, which we read in August 2026, and you can check it there.
- Backing for the numbers about Mont is found at mca.legmt.gov, which we read in August 2026, and you can check it there.
- Backing for the numbers about Montana formation fee: Filing fee, official source is found at sosmt.gov, which we read in October 2026, and you can check it there.
- Backing for the numbers about Montana registered agent statute is found at mca.legmt.gov, which we read in October 2026, and you can check it there.
- Backing for the numbers about Indiana Secretary of State, Business Services Division is found at inbiz.in.gov, which we read in August 2026, and you can check it there.
- Backing for the numbers about Indiana Secretary of State, Business Services Division is found at forms.in.gov, which we read in August 2026, and you can check it there.
- Backing for the numbers about Utah Division of Corporations and Commercial Code is found at corporations.utah.gov, which we read in August 2026, and you can check it there.
- Backing for the numbers about Utah Division of Corporations and Commercial Code is found at corporations.utah.gov, which we read in August 2026, and you can check it there.
- Backing for the numbers about Colorado Secretary of State is found at sos.state.co.us, which we read in August 2026, and you can check it there.
- Backing for the numbers about Colorado Secretary of State is found at sos.state.co.us, which we read in August 2026, and you can check it there.
- Backing for the numbers about Colorado yearly filing: Periodic report, official source is found at coloradosos.gov, which we read in October 2026, and you can check it there.
- Backing for the numbers about Michigan Department of Licensing and Regulatory Affairs, Corporations is found at michigan.gov, which we read in August 2026, and you can check it there.
- Backing for the numbers about Michigan Department of Licensing and Regulatory Affairs, Corporations is found at michigan.gov, which we read in August 2026, and you can check it there.
- As read November 13, 2026, Mainstay Filing shows Montana service page on its site
- As read November 13, 2026, Montana Registered Agent.co shows pricing page on its site
- As read November 13, 2026, Registered Agent MT.org shows pricing page on its site