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Missouri
Your questions · Missouri
3 Best Registered Agents in Missouri (2026) for You
Our 2026 Missouri ranking, best first, is MO Registered Agent.org ($99 a year), Mainstay Filing ($149 a year) and Missouri Registered Agent.co ($99 a year). Year one runs $99 to $149, and three years total $297 to $447.
By the LLC Answered editorial team
Answers updated November 13, 2026
Our funding: LLC Answered is reader-supported. We may earn money when you buy through links on this page, and the companies we rank are our partners. Prices come from each company's own pages and official state sources.
The brief reply
Short reply
Required by law?
Must be named
Legal title
Registered agent
What services charge
$99 to $149 per year
Our ranking
MO Registered Agent.org, Mainstay Filing then Missouri Registered Agent.co
The Missouri ranking
Ranked best first by the tests on our process page .
#1
Top reply
1. MO Registered Agent.org: best for one-state companies
Annual price $99; renewal price $99
First place: MO Registered Agent.org, where for $99 a year you get an agent based in the state.
A lower three-year cost than Mainstay Filing puts it first for a company that stays put.
What is bundled
In-state street address Document scans in your account
Pluses
Under Mainstay Filing on yearly price Annual price $99, renewal price $99
#2
Fifty states
2. Mainstay Filing: best for LLCs that may expand
Annual price $149; renewal price $149
Mainstay Filing is number 2, because $149 a year is its fee in this state and every other.
The three-year gap to MO Registered Agent.org is $150, which explains the lower rank.
What is bundled
A staffed in-state address Up to three official mailings a year scanned for you Also serves corporations, LPs, LLPs and nonprofits, not only LLCs
Pluses
$149 a year, no increase Valid wherever the LLC registers
Downsides
Higher by $50 a year Just the agent role
#3
For Missouri
3. Missouri Registered Agent.co: best for another local choice
Annual price $99; renewal price $99
Why Missouri Registered Agent.co third? Simply put, for $99 a year you get an agent based in the state.
It charges what MO Registered Agent.org charges; the order between them is close.
What is bundled
In-state street address Document scans in your account
Pluses
Under Mainstay Filing on yearly price Annual price $99, renewal price $99
Prices side by side
# Service Start price Later years Three-year cost Price buys
1
MO Registered Agent.org $99 $99/yr $297 In-state street address; document scans in your account
Get started with MO Registered Agent.org
Partner link. We may earn money if you buy.
2
Mainstay Filing $149 $149/yr $447 A staffed in-state address; up to three official mailings a year scanned for you; Also serves corporations, LPs, LLPs and nonprofits, not only LLCs
Get started with Mainstay Filing
Partner link. We may earn money if you buy.
3
Missouri Registered Agent.co $99 $99/yr $297 In-state street address; document scans in your account
Get started with Missouri Registered Agent.co
Partner link. We may earn money if you buy.
Service fees only, from each company's prices on November 13, 2026. State fees are identical whichever you pick.
Straight replies
Will the state insist on a registered agent?
Every LLC must name a registered agent with an in-state street address.
Cited law: RSMo 347.030. revisor.mo.gov , current in October 2026 per the state
Who counts as a valid agent?
A Missouri resident, or a corporation authorized in Missouri, whose business office is the registered office.
You may be your own agent when you qualify, and the state adds no charge.
How much does an agent charge?
Count on $99 to $149 a year, $297 to $447 over three.
No state fee depends on which agent you pick.
What does an agent do for an LLC?
It serves as the LLC's Missouri mailing point for court papers and state letters.
What does the state bill yearly?
No report falls due.
What decided the ranking?
MO Registered Agent.org leads on three-year price, a 36% test.
Five tests set the order: three-year price (36%), paperwork covered (29%), straightforward pricing (15%), renewal behavior (10%) and states served (10%).
$297 for three years at MO Registered Agent.org is $150 below Mainstay Filing.
Read the process
Missouri requirements checklist
Item Answer Where it is from
Cost to file the LLC
$50 sos.mo.gov , current in October 2026 per the state
Registered agent
Must be named revisor.mo.gov , current in October 2026 per the state
State fees, first three years
$50 Computed from the rows
The final row is a sum, not a state figure: filing fee, then years two and three of reports, then minimum tax where it applies.
Definitions of the key terms
Registered agent The in-state person or company that accepts legal papers and government notices on the LLC's behalf.
Service of process How legal papers officially reach a company: someone hands them to its agent.
More quick questions
May I name myself as agent?
Yes, when you qualify under the state's rule; privacy is the usual reason to pay for a service anyway.
Which address counts?
The address has to be a physical street address in Missouri. A P.O. box can be listed only together with a street address.
What does each pick cost across three years?
MO Registered Agent.org runs $297, Mainstay Filing runs $447, Missouri Registered Agent.co runs $297
What is behind the figures?
State side: Missouri's published fee schedules and forms. Service side: the prices each company lists.
Must I hire a service?
No. What you pay a service covers the labor and the agent role, not anything the state demands.
Who ranks first in Missouri?
MO Registered Agent.org, because its service is $99 annually and puts a street address on file. Then Mainstay Filing and Missouri Registered Agent.co.
Proof and sources
On record: RSMo 347.037, revisor.mo.gov , current as of August 2026
On record: Missouri formation fee: Filing fee, sos.mo.gov , current as of October 2026
On record: Missouri registered agent statute, revisor.mo.gov , current as of October 2026
November 13, 2026 price read: MO Registered Agent.org pricing page
November 13, 2026 price read: Mainstay Filing Missouri service page
November 13, 2026 price read: Missouri Registered Agent.co pricing page