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The Formation Desk

Rankings of registered agents, LLC formation and foreign registration services in all 50 states.

LLC service picks · Missouri

3 Best LLC Services in Missouri (2026)

The The Formation Desk call for LLC services in Missouri in 2026: Mainstay Filing ($199), MO Registered Agent.org ($199) and Missouri Registered Agent.co ($199), in that order. Mainstay Filing takes the call: one $199 yearly bill handles the formation and the registered agent, renewing at $199.
Written by The Formation Desk editorial team
1
Best here

1. Mainstay Filing: best for a single all-in yearly price

$199 a year plus the state fee, $249 due at checkout

Editorial score 9.2 out of 10

The desk picks Mainstay Filing: $199 pays for the Missouri formation and a year of registered agent service, EIN application included.

Missouri has no yearly LLC report, so after year one you are paying the renewal for the registered agent alone (the EIN application was part of the first-year bundle).

Over three years Mainstay runs $200 more than MO Registered Agent.org, and the desk thinks the wider coverage is worth it.

In the price

  • Your LLC formation, handled
  • Registered agent service for the full year
  • EIN application handled

Strengths

  • Missouri's fee passes through at cost
  • EIN application comes with the package
  • $199 on renewal, nothing extra
  • One $199 yearly price

Cons

  • Its agent renews at $100 a year more than MO Registered Agent.org
  • Missouri has no yearly report, so the bundle is worth less
Visit Mainstay FilingPartner link. We may earn money if you buy. Mainstay Filing up close
2
Best for a Missouri-only company

2. MO Registered Agent.org: best for a Missouri LLC with no plans to expand

Form for $199; the agent is $99 a year after that, plus the state fee

Editorial score 8.8 out of 10

Runner-up, MO Registered Agent.org: $199 plus the Missouri filing fee, first-year registered agent service included, then $99 a year.

You get an in-state street address as the registered office, and papers served there are scanned into your account.

In the price

  • The formation filing
  • The first year as your registered agent

Strengths

  • Forms the LLC for $199, plus the state's fee
  • Year-two agent price: $99
  • Registered agent service for year one is covered

Cons

  • EIN application will cost you $99 more
Visit MO Registered Agent.orgPartner link. We may earn money if you buy. MO Registered Agent.org up close
3
Best for a Missouri-only company

3. Missouri Registered Agent.co: best for keeping it local in Missouri

Form for $199; the agent is $99 a year after that, plus the state fee

Editorial score 8.6 out of 10

Third, Missouri Registered Agent.co: $199 plus the Missouri filing fee, first-year registered agent service included, then $99 a year.

You get an in-state street address as the registered office, and papers served there are scanned into your account.

MO Registered Agent.org and Missouri Registered Agent.co list the same prices and plan features, so it is close and either one works.

In the price

  • The formation filing
  • Year-one registered agent service

Strengths

  • Year-one registered agent service is in the price
  • The agent costs $99 after year one
  • Formation at $199 before state fees

Cons

  • EIN application will cost you $99 more
Visit Missouri Registered Agent.coPartner link. We may earn money if you buy. Missouri Registered Agent.co up close

The desk's 3 picks in brief

Pick Service Desk score Service fee Year two Good for Visit
1 Mainstay Filing 9.2 $199 $199/yr Formation and agent in a single price Visit Mainstay FilingPartner link. We may earn money if you buy.
2 MO Registered Agent.org 8.8 $199 $99/yr A Missouri-only LLC on a shoestring Visit MO Registered Agent.orgPartner link. We may earn money if you buy.
3 Missouri Registered Agent.co 8.6 $199 $99/yr A Missouri-only LLC on a shoestring Visit Missouri Registered Agent.coPartner link. We may earn money if you buy.

The scores out of 10 are the desk's own, drawn from the criteria on How we rank. They are not customer ratings.

What a Missouri LLC service costs in 2026: year one, renewal and the three-year bill

Service Year one Year two Year three Bill over three years EIN application
Mainstay Filing $199 $199 $199 $597 Included
MO Registered Agent.org $199 $99 $99 $397 $99 add-on
Missouri Registered Agent.co $199 $99 $99 $397 $99 add-on

Every price here was read off the company's own pages on November 12, 2026. Missouri's $50 filing fee comes on top of every row and is left out of these totals.

Why it falls this way

The desk's method puts 33% on spend over three years and 33% on work the price removes, and 34% across what renewal looks like, fit with the state and plain price display. For Missouri, work the price removes did the deciding.

Missouri has no yearly report to file, so the bundle matters less here, but one fixed price with the EIN application included still edged MO Registered Agent.org on coverage.

The full criteria and weights are on How we rank.

Missouri LLC filing fee and form: the official numbers

It takes $50 to file the Articles of Organization (Form LLC-1) with the Missouri Secretary of State. Every service here adds that fee at cost on top of its own price.

After you form: keeping the Missouri LLC in order

Missouri has no yearly LLC report to send in. Every LLC must name a registered agent with an in-state street address.

Missouri LLC service: reader questions

What will setting up an LLC in Missouri cost you?

$50 goes to the state and $199 to the service.

What do you file to create the LLC?

The Articles of Organization (Form LLC-1), sent to the Missouri Secretary of State.

Does a Missouri LLC have to line up a registered agent on day one?

Yes. Missouri expects a registered agent from the start, with a street address inside the state.

What keeps coming due once a Missouri LLC exists?

Nothing yearly. Missouri has no LLC report to file.

Does the service price take care of the EIN?

Mainstay Filing builds it into the yearly price. MO Registered Agent.org and Missouri Registered Agent.co tack on $99. The IRS never charges for an EIN.

Who is our pick for an LLC service in Missouri?

Mainstay Filing, since $199 a year buys the Missouri filing and the registered agent, and the EIN application is thrown in, renewing at $199.

Related pages

Where the numbers came from

  1. RSMo 347.037, last checked August 2026
  2. Missouri formation fee: Filing fee, official source, last checked October 2026
  3. Missouri registered agent statute, last checked October 2026
  4. Mainstay Filing: Missouri service page, as of November 12, 2026
  5. MO Registered Agent.org: pricing and service pages, as of November 12, 2026
  6. Missouri Registered Agent.co: pricing and service pages, as of November 12, 2026