Who should you hire in Missouri for LLC formation services in 2026: we say Mainstay Filing ($199), Missouri Registered Agent.co ($199) and MO Registered Agent.org ($199), ranked best first. Budget $50 for the state plus $397 to $597 in service fees over three years.
By the LLC Answered editorial team
Quick reply
Short reply
Charged by the state
$50, paid up front
Recurring cost
No report at all
Registered agent
Yes: the state demands it
Who to hire
Mainstay Filing, Missouri Registered Agent.co then MO Registered Agent.org
Who to hire in Missouri
Prices are from each company's own pricing. See how we decide.
#1Top reply
1. Mainstay Filing: best for a known yearly cost
$199 yearly ($249 due at signup with the state fee)
Mainstay Filing comes first, as $199 annually bundles formation and registered agent service with the EIN application.
Is it the smaller bill? No. Missouri Registered Agent.co costs $200 less over three years, but it works in Missouri only.
What is bundled
Articles prepared and filed
Registered agent all year
EIN filed for you
State fees billed as charged
Pluses
EIN handled
A flat $199 yearly
$199 at renewal
Downsides
Missouri Registered Agent.co renews for $100 less
Less to bundle in this state
#2In-state option
2. Missouri Registered Agent.co: best for holding down three-year cost
Formation $199, agent renewal $99, plus the state fee
Missouri Registered Agent.co is number 2, because $199 gets the LLC formed, and the agent renews yearly at $99.
What is bundled
LLC filed for you
Agent for year one
Pluses
$199 plus the state fee
Agent renews at $99
Year one of agent service is part of the price
Downsides
EIN not included ($99)
#3In-state option
3. MO Registered Agent.org: best for a low agent renewal
Formation $199, agent renewal $99, plus the state fee
MO Registered Agent.org is number 3, because $199 gets the LLC formed, and the agent renews yearly at $99.
Price for price it ties Missouri Registered Agent.co.
What is bundled
LLC filed for you
Agent for year one
Pluses
$199 plus the state fee
Agent renews at $99
Year one of agent service is part of the price
Downsides
EIN not included ($99)
Numbers at a glance
#
Service
Year 1
Later years
3-year cost
Included
1
Mainstay Filing
$199
$199/yr
$597
articles prepared and filed; registered agent all year; EIN filed for you
Missouri wants no report, so there is nothing to file.
Can the owner handle the filing?
Nothing stops you. With no service, your three-year bill is the state's $50.
That $397 to $597 over three years is the price of having someone else handle it.
How did you rank them?
It comes down to paperwork covered, where Mainstay Filing does best.
Five tests set the order: three-year price (36%), paperwork covered (29%), straightforward pricing (15%), renewal behavior (10%) and states served (10%).
With no Missouri report in the picture, coverage barely tips the balance.
The final row is a sum, not a state figure: filing fee, then years two and three of reports, then minimum tax where it applies.
Other questions
What does the EIN cost?
Only one pick bundles it, Mainstay Filing; Missouri Registered Agent.co adds $99, MO Registered Agent.org adds $99.
What does each charge over three years?
Totals: Mainstay Filing at $597, Missouri Registered Agent.co at $397, MO Registered Agent.org at $397, not counting state fees.
What are your sources?
State side: Missouri's published fee schedules and forms. Service side: the prices each company lists.
Does the law require a service?
You can file yourself if you meet the rules on this page, and the state charges what it charges either way.
What recurs annually?
Missouri wants no report, so there is nothing to file.
Who is your first choice in Missouri?
Mainstay Filing, because $199 a year gets the LLC formed and a registered agent in place, and the EIN application is included. Then Missouri Registered Agent.co and MO Registered Agent.org.