How to Register a Foreign LLC in Missouri (2026): 5 Steps and the 3 Best Services
Lesson answer for Missouri in 2026: if you want help with registering a foreign LLC, use Mainstay Filing ($199), MO Registered Agent.org ($199) and Missouri Registered Agent.co ($199), in that order. The 5 steps below start with whether you need to register at all. State fee: $105.
Company prices as published on November 12, 2026. Add Missouri's $105 registration fee to each row.
Step-by-step lesson
Step1
Step 1: See if your LLC must register in Missouri
An out-of-state LLC that transacts business in Missouri registers before it starts. If it does business unregistered: An unregistered LLC cannot bring a suit there (RSMo 347.163.1). Signed contracts keep their force (RSMo 347.163.2).
Official source: Source: dor.mo.gov, confirmed October 2026
Step2
Step 2: Order the home-state document
Missouri asks for certificate of good standing/existence from the home state, issued within 60 days.
TipTime the order so the certificate is fresh at filing.
Step3
Step 3: Name 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.
Official source: Source: revisor.mo.gov, confirmed October 2026
Step4
Step 4: Complete the Application for Registration of a Foreign Limited Liability Company
Send the Application for Registration of a Foreign Limited Liability Company (Form LLC 4) and $105 to the Missouri Secretary of State, Corporations Division.
Official source: Source: sos.mo.gov, confirmed October 2026
Step5
Step 5: Keep up with Missouri's yearly filing
Foreign LLCs have no recurring Missouri report.
What you will pay
Item
Who you pay
Price
The registration step
State
$105
A service, if you use one
Service
$199 to start
Three years of state fees
State
$105
Official state fees, cited under References. Three-year state total = filing + reports in years two and three + any minimum tax.
How the grade worked out
What decided it: lesson steps handled, 35% of our rubric.
Since the LLC operates in two states, coverage decided it.
Missouri questions
What does it cost to register a foreign LLC in Missouri?
$105 to the state. Add $199 for a service.
Which form do I file to register?
It is the Application for Registration of a Foreign Limited Liability Company (Form LLC 4), and it goes 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?
An unregistered LLC cannot bring a suit there (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?
In order: Mainstay Filing, MO Registered Agent.org and Missouri Registered Agent.co. Mainstay Filing comes first because registration for $199 plus state fees and a free first year as a registered agent.