LLC formation cost calculators + Montana
3 Best LLC Services in Montana (2026): Cost Calculator
Result order: The result is 41% three-year cost and 27% filing work covered, with renewal change, break-even year and input clarity filling in the rest. The formula
Montana: key outputs
Montana results
1. Montana Registered Agent.co: best for a basic start
Leads the resultsFor Montana, Montana Registered Agent.co is the best value since $199 for year one, then $99 for every year after.
A three-year result under Mainstay Filing's earns the top place.
The annual report would still be your filing.
Inputs covered
- Formation delivered to the state office
- Agent service for the first year
Adds up well
- A modest $99 renewal
- $199 on top of the state fee
- First agent year included
Adds up badly
- The annual report lands on your desk
- It bills $99 for the EIN application
2. Registered Agent MT.org: best for a local formation service
Montana onlyNext in the results, Registered Agent MT.org: $199 for year one, then $99 for every year after.
The annual report would still be your filing.
Input for input, it ties Montana Registered Agent.co.
Inputs covered
- Formation delivered to the state office
- Agent service for the first year
Adds up well
- A modest $99 renewal
- First agent year included
- $199 on top of the state fee
Adds up badly
- The annual report lands on your desk
- It bills $99 for the EIN application
3. Mainstay Filing: best for owners who want the upkeep handled
All fifty statesPosition 3 is Mainstay Filing: inputting $199 a year covers the filing, the registered agent and the annual report, with year two at $199.
A $200 gap to Montana Registered Agent.co at year three sets its place.
Each annual report is covered, with Montana's $20 billed at cost.
Inputs covered
- Articles of organization, filed
- Registered agent for the full year
- Annual report, filed when due
- EIN application prepared
- No markup on government fees
Adds up well
- The same $199 after year one
- $199 a year covers filing and agent and report
- The EIN application is taken care of
Adds up badly
- From year two, $100 above Montana Registered Agent.co
Totals at 1, 2, 3 and 5 years
| Rank | Service | Result, year 1 | Result, year 2 | Result, year 3 | Result, year 5 | |
|---|---|---|---|---|---|---|
| 1 | Montana Registered Agent.co | $199 | $298 | $397 | $595 | Open Montana Registered Agent.coPartner link. We may earn money if you buy. |
| 2 | Registered Agent MT.org | $199 | $298 | $397 | $595 | Open Registered Agent MT.orgPartner link. We may earn money if you buy. |
| 3 | Mainstay Filing | $199 | $398 | $597 | $995 | Open Mainstay FilingPartner link. We may earn money if you buy. |
Break-even test
Montana state fees (official)
| Input | Amount | Source |
|---|---|---|
| Cost to form | $35 | sosmt.gov {input read October 2026, shown in full} |
| Annual report | $20 every year | sosmt.gov {input read October 2026, shown in full} |
| Late fee | $15 | sosmt.gov {input read October 2026, shown in full} |
| State fees summed, years 1 to 3 | $75 | Sum of the inputs above |
What settled the order
For Montana, the deciding term was calculated three-year cost (41% of the formula), where Montana Registered Agent.co came out ahead.
A three-year run with Montana Registered Agent.co calculates to $397, while Mainstay Filing runs $200 higher.
Put the EIN application into the formula and the totals cross in year 2, when Mainstay Filing passes Montana Registered Agent.co.
How Montana describes its LLC filing fee and filing requirements
You submit the Articles of Organization to the Montana Secretary of State along with $35 (Mont. Code Ann. § 35-8-201). Every LLC must name a registered agent with an in-state street address.
Official text: sosmt.gov {input read October 2026, shown in full}
If you skip the service
File alone and Montana still bills $75 over three years, with every form on your desk. A service charging $397 to $597 removes that work.
Questions
What do LLC formation services cost in Montana?
Budget $199 plus $35 in state fees.
What do these services calculate to over three years?
$397 to $597 across the services, not counting state fees.
How much does Montana charge to file an LLC?
Input $35 to file, using the Articles of Organization.
What does Montana charge each year after formation?
$20 annually goes to the annual report, with the state setting the deadline at April 15.
Is the EIN application part of the price?
Montana Registered Agent.co, plus $99, Registered Agent MT.org, plus $99 and Mainstay Filing, nothing added.
When does one service pass another in total cost?
They hold one order for ten years.
Which LLC formation service calculates best in Montana?
Result one is Montana Registered Agent.co, then Registered Agent MT.org, then Mainstay Filing.
Input sources
- Input for Montana Secretary of State fee comes from sosmt.gov, entered October 2026.
- Input for Montana yearly filing: Annual report comes from sosmt.gov, entered October 2026.
- Input for Montana yearly filing: Annual report comes from sosmt.gov, entered October 2026.
- Input for Montana report due date comes from mca.legmt.gov, entered August 2026.
- Input for Mont comes from mca.legmt.gov, entered August 2026.
- Input for Montana formation fee: Filing fee comes from sosmt.gov, entered October 2026.
- Input for Montana registered agent statute comes from mca.legmt.gov, entered October 2026.
- Montana Registered Agent.co pricing page, entered November 13, 2026
- Registered Agent MT.org pricing page, entered November 13, 2026
- Mainstay Filing Montana service page, entered November 13, 2026