Keep it simple · Missouri
$99 a year, $99 when you renew
We'd use Missouri Registered Agent.co in Missouri. Its agent service costs $99 a year and puts a street address on file for you.
The tiebreaker is cost, and three years here come in under Mainstay Filing.
Your money buys
The good
Trade-offs
$149 a year, $149 when you renew
Number 2 is Mainstay Filing: its price doesn't change by state: $149 a year, $149 at renewal.
At $150 more than Missouri Registered Agent.co over three years, it lands lower on our list.
Your money buys
The good
Trade-offs
$99 a year, $99 when you renew
Third place goes to MO Registered Agent.org, where its agent service costs $99 a year and puts a street address on file for you.
It charges what Missouri Registered Agent.co charges, so the order between them is close.
Your money buys
The good
Trade-offs
| # | Company | First year | Renewal | Three-year total | What you get | |
|---|---|---|---|---|---|---|
| 1 | Missouri Registered Agent.co | $99 | $99/yr | $297 | A local address on file; online copies of any legal papers | Visit the Missouri Registered Agent.co sitePartner link. We may earn money if you buy. |
| 2 | Mainstay Filing | $149 | $149/yr | $447 | A real in-state address; three government mailings a year scanned for free; Works for LLCs, corporations, LPs, LLPs and nonprofits too | Visit the Mainstay Filing sitePartner link. We may earn money if you buy. |
| 3 | MO Registered Agent.org | $99 | $99/yr | $297 | A local address on file; online copies of any legal papers | Visit the MO Registered Agent.org sitePartner link. We may earn money if you buy. |
Every LLC must name a registered agent with an in-state street address.
Cited law: RSMo 347.030. revisor.mo.gov, last seen October 2026
A Missouri resident, or a corporation authorized in Missouri, whose business office is the registered office.
Qualify, and the job can be yours for free.
$99 to $149 a year with the services we'd use, or $297 to $447 across three years.
The state charges the same no matter the agent.
It takes legal documents for your LLC at its Missouri address.
What matters is that nothing important goes unnoticed while you're out. Service of process, translated
No report falls due.
It comes down to cost across three years, and Missouri Registered Agent.co is best at it.
Five checks set the order: cost across three years (33%), work taken off your hands (31%), prices stated clearly (14%), renewal price (12%) and where it works (10%).
Missouri Registered Agent.co comes out at $297 for three years, $150 below Mainstay Filing.
| Item | Amount or rule | Where we found it |
|---|---|---|
| LLC filing fee | $50 | sos.mo.gov, last seen October 2026 |
| Registered agent | Yes, the law says so | revisor.mo.gov, last seen October 2026 |
| What the state gets in three years | $50 | Added from the rows |
Yes, if you meet the rules on who qualifies and on the address shown on this page.
The address has to be a physical street address in Missouri. A P.O. box can be listed only together with a street address.
Over three years you'd pay $297 at Missouri Registered Agent.co, $447 at Mainstay Filing, $297 at MO Registered Agent.org
Every state fee links to its official page. Every service price is read from the company's own site.
No. The state takes filings straight from owners. A service saves you time and can serve as your agent, but nobody makes you hire one.
Missouri Registered Agent.co, because a company that never leaves Missouri pays $297 for three years. After that, Mainstay Filing and MO Registered Agent.org.