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Founder Mentor Guide

Walkthrough 3 · Missouri

Foreign LLC Registration Walkthrough, Missouri (2026): 5 Stages and the 3 Best Services

Here is the short answer for bringing an LLC into a second state in Missouri in 2026: Mainstay Filing ($199), MO Registered Agent.org ($199) and Missouri Registered Agent.co ($199), ranked from first to last. Registering takes 5 stages and a $105 state fee.

Advice from the Founder Mentor Guide mentors

Read this first

State filing fee
$105
Verify it at sos.mo.gov, which we opened in October 2026
Home certificate
60 days
How old it can be at filing
Annual report
None
No report
State cost, years 1 to 3
$105
Registration and reports
How many stages
5
Listed below

Walkthrough goals

  • Which LLCs must register
  • The filing, its price and its office
  • The upkeep that repeats
  • Who we would phone to file

The Missouri call list

Cost over three years leads, then work taken off your desk, year-two price, Missouri fit and honest pricing (scoring page).

Our call

1. Mainstay Filing: best for one provider for both states

Start with this one$199 plus fees; renewal $149 annually

Mainstay Filing is our first call in Missouri: $199 over the state fee in any state; year one of the registered agent is free, then $149 yearly.

Three years run $100 higher than at MO Registered Agent.org, and you get more of the work done in return.

The agent charge starts in year two at $149 a year, the same in any state.

What you get

  • Registration paperwork handled
  • Your first year of registered agent is free
  • The same price in each state

What works

  • A $199 service charge
  • All fifty states covered
  • The agent costs nothing in year one

What to watch

  • A pricier agent renewal ($149)
Visit Mainstay FilingPartner link. We may earn money if you buy.

Our call

2. MO Registered Agent.org: best for adding just Missouri

One-state plan$199 plus fees; renewal $99 annually

MO Registered Agent.org comes in second: $199 beyond the state fee, with the first year of the agent covered, then $99 a year.

What you get

  • Filing made with the state
  • Agent service for one year comes with the price

What works

  • $99 a year for the agent after that
  • A $199 service charge
  • Agent service costs nothing extra in the first year

What to watch

  • No help in other states
Visit MO Registered Agent.orgPartner link. We may earn money if you buy.

Our call

3. Missouri Registered Agent.co: best for a small agent renewal

One-state plan$199 plus fees; renewal $99 annually

Missouri Registered Agent.co comes in third: $199 beyond the state fee, with the first year of the agent covered, then $99 a year.

On price it is a tie with MO Registered Agent.org.

What you get

  • Filing made with the state
  • Agent service for one year comes with the price

What works

  • Agent service costs nothing extra in the first year
  • A $199 service charge
  • $99 a year for the agent after that

What to watch

  • No help in other states
Visit Missouri Registered Agent.coPartner link. We may earn money if you buy.

The Missouri picks side by side

#ServiceFirst yearFrom year twoThree-year total
1Mainstay Filing$199$149/yr$497Visit Mainstay FilingPartner link. We may earn money if you buy.
2MO Registered Agent.org$199$99/yr$397Visit MO Registered Agent.orgPartner link. We may earn money if you buy.
3Missouri Registered Agent.co$199$99/yr$397Visit Missouri Registered Agent.coPartner link. We may earn money if you buy.
Listed prices, viewed November 13, 2026. No row folds in the $105 state fee.

The Missouri registration, in order

  1. Stage 1

    Find out if you have to register

    An LLC formed in another state has to register with Missouri before it does business here. What can go wrong without registering: until it registers, the LLC cannot sue in Missouri's courts (RSMo 347.163.1) signed contracts keep their force (RSMo 347.163.2)

    Check it yourself: Verify it at dor.mo.gov, which we opened in October 2026

  2. Stage 2

    Collect the certificate from the state of formation

    Missouri asks for certificate of good standing/existence from the home state, dated within 60 days.

    A recent certificate is the safe choice, so order late.

  3. Stage 3

    Choose your Missouri registered agent

    Every LLC must name a registered agent with an in-state street address. The address has to be a physical street address in Missouri. A P.O. box can be listed only together with a street address.

    Any of our picks can take the job.

    Check it yourself: Verify it at revisor.mo.gov, which we opened in October 2026

  4. Stage 4

    The paper to file is the Application for Registration of a Foreign Limited Liability Company

    The form and the $105 fee travel together to the Missouri Secretary of State, Corporations Division.

    Check it yourself: Verify it at sos.mo.gov, which we opened in October 2026

  5. Stage 5

    Keep the registration in force

    The state does not require an annual report from foreign LLCs.

Missouri costs by stage

EntryGoes toSum
Registering the LLCGoes to the state$105
Service, if you hire oneThe service$199 in year one
Three-year state totalGoes to the state$105
Here is how the three-year state row is built: filing fee, then the report in each of years two and three, then any yearly minimum tax. Service fees get their own rows.

Why Mainstay Filing is first

Work taken off your desk makes up 32% of the score, and that is where pulled ahead in Missouri.

Your LLC was formed in one state and operates in another, so a provider serving both scored best.

Missouri questions

What does Missouri charge an out-of-state LLC?

$105 for the filing. Hiring one means $199 on top.

Which form do I file to register?

Foreign LLCs send this form to The Missouri Secretary of State, Corporations Division.

Do I need a certificate from my home state?

Yes: certificate of good standing/existence from the home state, issued within 60 days of filing.

What if the LLC does business there without registering?

until it registers, the LLC cannot sue in Missouri's courts (RSMo 347.163.1) signed contracts keep their force (RSMo 347.163.2)

What is due after registering?

No recurring report for foreign LLCs in Missouri.

Which service should handle the registration?

Go with Mainstay Filing: a service charge of $199 next to Missouri's fee, with your first registered agent year included. Then MO Registered Agent.org and Missouri Registered Agent.co.

Where we got the facts

  1. For RSMo 347.037, open revisor.mo.gov (we last saw it August 2026).
  2. For Missouri formation fee: Filing fee, official source, open sos.mo.gov (we last saw it October 2026).
  3. For Missouri registered agent statute, open revisor.mo.gov (we last saw it October 2026).
  4. For Missouri Secretary of State, Corporations, open sos.mo.gov (we last saw it October 2026).
  5. For Form LLC 4, foreign LLC registration, open sos.mo.gov (we last saw it October 2026).
  6. For RSMo 347.153, registration of foreign LLCs, open revisor.mo.gov (we last saw it October 2026).
  7. For RSMo 347.163, transacting business and penalties, open revisor.mo.gov (we last saw it October 2026).
  8. For Missouri Department of Revenue, business registration, open dor.mo.gov (we last saw it October 2026).
  9. The Missouri service page at Mainstay Filing, viewed November 13, 2026
  10. The pricing page at MO Registered Agent.org, viewed November 13, 2026
  11. The pricing page at Missouri Registered Agent.co, viewed November 13, 2026