Foreign registration price index · Missouri
3 Best Foreign Registration Services in Missouri (2026): Price Index
Index basis: Index of five columns: three-year cost (38%), coverage per dollar (32%), renewal step, crossover year and price transparency. Basis explained
The Missouri tally
The indexed ledger
1. Missouri Registered Agent.co: best for a lean way in on this ledger
First lineMissouri Registered Agent.co holds the first line: $199 beyond the state fee, then $99 a year.
A three-year subtotal below Mainstay Filing earns line one.
Line includes
- The filing made on your behalf
- Agent service in year one
Credits
- $199 added to the state fee
- No agent charge in year one
- $99 a year for the agent afterward
Debits
- The home state still needs a separate agent
2. MO Registered Agent.org: best for a single added state
In-state lineLine 2 goes to MO Registered Agent.org: $199 beyond the state fee, then $99 a year.
On price alone it is a tie with Missouri Registered Agent.co.
Line includes
- The filing made on your behalf
- Agent service in year one
Credits
- $99 a year for the agent afterward
- No agent charge in year one
- $199 added to the state fee
Debits
- The home state still needs a separate agent
3. Mainstay Filing: best for LLCs still expanding
Fifty statesMainstay Filing is line 3: a $199 service charge in any state, first agent year thrown in.
Three years total $100 more than Missouri Registered Agent.co.
Agent charge from year two: $149, the same everywhere.
Line includes
- Foreign registration, prepared and sent
- Registered agent free for the first year
- Works in all fifty states
Credits
- Identical fee in every state
- No agent charge the first year
- A $199 service charge
Debits
- Agent renews at $149, $50 above Missouri Registered Agent.co
Running subtotals
| Line | Provider | Total, year 1 | Total, year 2 | Total, year 3 | Total, year 5 | |
|---|---|---|---|---|---|---|
| 1 | Missouri Registered Agent.co | $199 | $298 | $397 | $595 | Visit Missouri Registered Agent.coPartner link. We may earn money if you buy. |
| 2 | MO Registered Agent.org | $199 | $298 | $397 | $595 | Visit MO Registered Agent.orgPartner link. We may earn money if you buy. |
| 3 | Mainstay Filing | $199 | $348 | $497 | $795 | Visit Mainstay FilingPartner link. We may earn money if you buy. |
Crossover check
The Missouri fee schedule
| Entry | Amount | Cited from |
|---|---|---|
| Cost to register | $105 | sos.mo.gov (read October 2026) per the state |
| State total, years 1 to 3 | $105 | Filing + reports + any tax |
How the index came out
Weight 38%: three-year cost index. That column separated the top two lines.
Three years with Missouri Registered Agent.co cost $397, while Mainstay Filing runs $100 higher.
Official Missouri foreign LLC registration fee and rules
An LLC from another state registers in Missouri before doing business there; the filing is the Application for Registration of a Foreign Limited Liability Company (Form LLC 4), delivered to the Missouri Secretary of State, Corporations Division with $105. Include certificate of good standing/existence from the home state obtained within 60 days.
An unregistered LLC can face no lawsuits as plaintiff in Missouri courts until registered (RSMo 347.163.1).
As published: dor.mo.gov (read October 2026) per the state
The no-service line
The cost of filing it yourself: $105 to the state across three years. Service subtotals of $397 to $497 are what you pay to avoid the forms.
Common questions
What does Missouri charge an out-of-state LLC to register?
$105 at the state, plus service fees starting in the $199 range.
What is the three-year subtotal for these services?
Three years of service costs $397 to $497.
Which document does the registering?
The registering document is Application for Registration of a Foreign Limited Liability Company (Form LLC 4), and the Missouri Secretary of State, Corporations Division is the office that takes it.
Does Missouri want a paper from the LLC's home state?
Yes, no more than 60 days old: certificate of good standing/existence from the home state.
What recurring filing comes after registration?
None: foreign LLCs file no recurring report here.
When does one line pass another in total cost?
They never cross in ten years, so the year-one order holds.
Which foreign registration service indexes best in Missouri?
Line one is Missouri Registered Agent.co, line two MO Registered Agent.org, line three Mainstay Filing.
Source lines
- Cited under RSMo 347.037: revisor.mo.gov (August 2026).
- Cited under Missouri formation fee: Filing fee: sos.mo.gov (October 2026).
- Cited under Missouri registered agent statute: revisor.mo.gov (October 2026).
- Cited under Missouri Secretary of State, Corporations: sos.mo.gov (October 2026).
- Cited under Form LLC 4, foreign LLC: sos.mo.gov (October 2026).
- Cited under RSMo 347.153, registration of foreign: revisor.mo.gov (October 2026).
- Cited under RSMo 347.163, transacting business and: revisor.mo.gov (October 2026).
- Cited under Missouri Department of Revenue, business: dor.mo.gov (October 2026).
- November 13, 2026 reading of the Missouri Registered Agent.co pricing page
- November 13, 2026 reading of the MO Registered Agent.org pricing page
- November 13, 2026 reading of the Mainstay Filing Missouri service page