3 Best LLC Services in Missouri (2026): Prices Tracked
Our 2026 watchlist puts Missouri Registered Agent.co ($199), Mainstay Filing ($199) and MO Registered Agent.org ($199) at the top for LLC formation services in Missouri, listed in that order. Expect $397 to $597 in service fees by year three. The $50 owed to Missouri does not depend on the provider.
Tracked by the Filing Price Watch editorial team
Ordered by:
Order = 37% cost, 29% filings covered, and three lighter measures (details)
Missouri in numbers
What the state charges to form$50sos.mo.gov (pulled October 2026, noted here)
Year 1 spread$199Excludes government fees
Three-year spend$397 to $597Renewals included
Government charges over 3 years$50Does not vary by provider
Totals cross inNo crossoverNo service overtakes another
Ranked picks
Service prices only. The $50 state fee applies to every service.
#Ordered byPrice in year 1Price at renewalThree-year spend
1
Leads the list
1. Missouri Registered Agent.co: best for the smallest opening bill
Starts at $199; later years $99
Price in year 1$199
Price after year 1$99/yr
Three-year spend$397
Missouri Registered Agent.co leads since three years total $397 because renewal is only $99.
On the heaviest measure, three-year cost, it beats Mainstay Filing.
Price covers
Formation handled for you
A year of agent service to begin with
Holds up
Then $99 yearly
$199 for the filing
No agent charge in year one
Weak spots
EIN application not included ($99)
2
Fifty states
2. Mainstay Filing: best for formation and agent under one bill
$199 a year, plus $50 paid to the state
Price in year 1$199
Price after year 1$199/yr
Three-year spend$597
Entry 2 is Mainstay Filing. A single $199 price handles formation and the registered agent and the EIN application.
By year three it trails Missouri Registered Agent.co by $200.
Price covers
Formation handled for you
Registered agent for the full year
EIN application, prepared for you
Nothing added to state charges
Holds up
$199 a year includes filing and agent
The EIN application is taken care of
$199 again after the first year
Weak spots
$100 a year over Missouri Registered Agent.co from year two
No report, so a smaller bundle
3
Built for Missouri
3. MO Registered Agent.org: best for a local formation service
Starts at $199; later years $99
Price in year 1$199
Price after year 1$99/yr
Three-year spend$397
Next up, MO Registered Agent.org: three years total $397 because renewal is only $99.
Its prices are identical to Missouri Registered Agent.co's.
Three years of state charges means one filing, two reports and any minimum tax. We list open-ended costs such as publication but keep them out of the total.
How first place was won
Missouri Registered Agent.co wins on tracked three-year cost, a 37% measure, with Mainstay Filing close behind.
Missouri Registered Agent.co wins the cost measure at $397 for three years, $200 under what Mainstay Filing charges.
If you count the EIN application, Missouri Registered Agent.co costs less from year 2.
Missouri LLC filing fee and requirements, as written by the state
You send the Articles of Organization (Form LLC-1) and $50 to the Missouri Secretary of State. Every LLC must name a registered agent with an in-state street address.
From the source: sos.mo.gov (pulled October 2026, noted here)
State fees and nothing else
Skip the services and Missouri still collects $50 across three years, while you fill out every form. Hiring help costs $397 to $597.
About these prices
How much do LLC formation services cost in Missouri?
Expect $199 in year one, plus the $50 filing fee.
What do these services cost over three years?
$397 to $597 across these services, not counting state fees.
What does Missouri charge to file an LLC?
$50 along with the Articles of Organization (Form LLC-1).
What does Missouri charge every year once the LLC exists?
Missouri does not ask for a yearly report.
Does the price include the EIN application?
$99 extra at Missouri Registered Agent.co, it comes with Mainstay Filing and $99 extra at MO Registered Agent.org.
In what year does one service become pricier than another?
Not in the next ten years. The running totals keep their order.
Which LLC formation service is the best value in Missouri?
Best to least: Missouri Registered Agent.co, Mainstay Filing and MO Registered Agent.org.