LLC Review Desk's 2026 picks for LLC services in Missouri, favorite first, are Mainstay Filing ($199), Missouri Registered Agent.co ($199) and MO Registered Agent.org ($199). Mainstay Filing is our favorite, because $199 a year covers the Missouri filing and your registered agent, plus the EIN application, and it renews at $199.
By the LLC Review Desk editorial team
Position 1
Top pick on this page
1. Mainstay Filing: best for everything on one simple yearly price
$199 a year, and the state fee goes on top ($249 at checkout)
Our score
9.3out of 10
9.3 out of 10
Our favorite is Mainstay Filing, because formation and registered agent service come together for $199 a year, renewing at $199.
Missouri has no yearly LLC report, so after the first year your renewal pays for the registered agent and nothing more (year one also included your EIN application).
Over three years it costs $200 more than Missouri Registered Agent.co, and for us the extra things it handles are worth that.
In the price
Formation paperwork prepared and sent in
A full year as your registered agent
Your EIN application, taken care of
What we like
Renews at $199, no add-ons
One yearly price of $199
The EIN application is included
Missouri's fee is passed through at cost
Trade-offs
After year one, its agent costs $100 a year more than Missouri Registered Agent.co's
Missouri has no yearly report, so the bundle does less here
LLC Review Desk gives each score out of 10 itself, based on the criteria on How we rank. No customer ratings are involved.
What Missouri LLC services cost in 2026: year one, renewals and three years
Service
First year
Second year
Third year
Three-year total
EIN included
Mainstay Filing
$199
$199
$199
$597
Included
Missouri Registered Agent.co
$199
$99
$99
$397
$99 add-on
MO Registered Agent.org
$199
$99
$99
$397
$99 add-on
We took each price from the company's own pages on November 12, 2026. On top of every row, Missouri charges a $50 filing fee, which isn't in these totals.
Why we ordered them this way
Here's how we scored it: three-year cost and filings in the price are worth 29% each, and renewal price, state fit and up-front totals split the other 42%. In Missouri, filings in the price made the difference.
Missouri has no yearly report, so a bundle matters less, but one flat price with the EIN application included still gave Mainstay a small edge over Missouri Registered Agent.co on coverage.
You can read every criterion and weight on How we rank.
The Missouri LLC filing fee and form, from the state
Heads up: the Missouri Secretary of State takes $50 when you file the Articles of Organization (Form LLC-1). Every service below adds that fee at cost.
What a Missouri LLC needs after it is formed
Nothing recurring: Missouri has no yearly LLC report. Every LLC must name a registered agent with an in-state street address.
Your questions about Missouri LLC services
How much does forming an LLC in Missouri set you back?
The state charges $50 to file, and services charge $199.
What paperwork makes the LLC official?
You send the Articles of Organization (Form LLC-1) to the Missouri Secretary of State.
Does the Missouri formation form ask me to name a registered agent?
Yes. You list a registered agent when you file and keep one on record, using a street address in Missouri.
Is there paperwork after the LLC is formed?
Not a yearly report. Missouri doesn't ask LLCs for one.
Is the EIN included in the price?
With Mainstay Filing, yes; it comes with the yearly price. Missouri Registered Agent.co and MO Registered Agent.org tack on $99 for it. You can also ask the IRS for an EIN yourself, free of charge.
Who should I use to form my Missouri LLC?
Mainstay Filing, because $199 gets the Missouri formation done and covers a year of registered agent service, EIN application too.