The Missouri Registered Agent (2026): 6 Procedures and the 3 Best Agents
Ranked by measured reading, the services for appointing a registered agent in Missouri in 2026 are MO Registered Agent.org ($99 a year), Mainstay Filing ($149 a year) and Missouri Registered Agent.co ($99 a year). The sheet runs 6 procedures: the legal rule, eligibility, the address test and the filing.
A Missouri resident, or a corporation authorized in Missouri, whose business office is the registered office. Statutory basis: RSMo 347.030.
Procedure3
Procedure 3: Apply the address test
The address has to be a physical street address in Missouri. A P.O. box can be listed only together with a street address.
TipA service supplies a Missouri street address, which keeps the owner's address off the filing.
Procedure4
Procedure 4: Decide who fills the role
A qualified owner can act as agent. Otherwise the ranked agents charge $99 to $149 a year.
Procedure5
Procedure 5: Enter the appointment
The agent of a new LLC is named in the Articles of Organization (Form LLC-1), filed with the Missouri Secretary of State. An existing LLC that changes agents files an amendment at the same office.
Missouri requires no recurring LLC report, so the registered agent is the one item to keep current.
Missouri agent costs
Procedure
Goes to
Amount
Agent service
The service
$99 to $149 a year
From year two
The service
$99 to $149 a year
Figures paid to Missouri are its published fees, with the specimens listed beneath the table; each service row is that company's own price. The three-year state row sums the filing, the year-two report, the year-three report and any minimum tax.
Why MO Registered Agent.org comes first
prevailed on measured cost over three years (36% of the reading), with close behind.
Three years with MO Registered Agent.org total $297, which is $150 below Mainstay Filing.
Brief answers
Does Missouri law require a registered agent for an LLC?
Yes. Every LLC must name a registered agent with an in-state street address.
Can I be my own registered agent?
Owners may serve when qualified; procedures 2 and 3 give the tests.
Can I change my registered agent later?
Yes; an existing LLC files a change with the Missouri Secretary of State, as procedure 5 shows.
What does a registered agent cost in Missouri?
$99 to $149 a year among the ranked agents.
What does the LLC pay the state each year?
Nothing for a report.
Which registered agent would you choose?
The order of the readings is MO Registered Agent.org, Mainstay Filing and Missouri Registered Agent.co. MO Registered Agent.org is first because $99 a year with no change at renewal, matched to an LLC that remains in one state.