3 Best Registered Agents in Missouri (2026): Prices Tracked
Our 2026 watchlist puts Mainstay Filing ($149/yr), MO Registered Agent.org ($99/yr) and Missouri Registered Agent.co ($99/yr) at the top for registered agents in Missouri, listed in that order. These agents bill $99 to $149 for a first year and $297 to $447 for three.
Tracked by the Filing Price Watch editorial team
Ordered by:
Three-year cost counts for 37% and filings covered for 29%, with renewal movement, crossover year and price visibility making up the rest. How we track
Missouri price snapshot
State requirementYesrevisor.mo.gov (pulled October 2026, noted here)
Opening prices$99 to $149Charged each year
What three years cost$297 to $447Year one and both renewals
Crossover yearLines stay apartStable for a decade
The Missouri picks, ranked
Services are ordered by value, and every price comes from a company page. State fees stay the same whoever the agent is.
#Ordered byPrice in year 1Price at renewalThree-year spend
1
Best value
1. Mainstay Filing: best for LLCs operating in several states
$149 in year one and $149 after that
Price in year 1$149
Price at renewal$149/yr
Three-year spend$447
First on the watchlist is Mainstay Filing. A flat $149 each year, no matter which state applies.
You would save $150 over three years with MO Registered Agent.org and keep more filings on your own plate.
Price covers
A street address in the state
Up to three government mailings a year scanned for you at no charge
Covers LLCs, corporations, LPs, LLPs and nonprofits
Holds up
The same price in all fifty states
$149 a year, unchanged at renewal
Weak spots
$50 higher per year
Report filing needs the formation package
2
Home-state provider
2. MO Registered Agent.org: best for the lowest three-year spend
$99 in year one and $99 after that
Price in year 1$99
Price at renewal$99/yr
Three-year spend$297
Spot 2 goes to MO Registered Agent.org: $99 a year and $99 at renewal for an LLC that stays in one state.
Price covers
An office address in the state
Legal documents posted in your account
Holds up
Yearly price below the national option
A steady $99 a year
Weak spots
One-state service
3
Home-state provider
3. Missouri Registered Agent.co: best for staying local
$99 in year one and $99 after that
Price in year 1$99
Price at renewal$99/yr
Three-year spend$297
Spot 3 goes to Missouri Registered Agent.co: $99 a year and $99 at renewal for an LLC that stays in one state.
Its prices are identical to MO Registered Agent.org's.
Reports in years two and three, the filing itself and any minimum tax are what make up the three-year state figure here. Costs the state does not put a number on are described, never added.
The reasoning behind the order
Filings covered by the price gave Mainstay Filing the lead. It makes up 29% of the order, and tracked three-year cost, renewal movement, crossover year and price visibility cover the remainder.
MO Registered Agent.org is less expensive here, but working in all fifty states carried more weight.
Missouri registered agent requirements, as written by the state (Missouri Secretary of State)
Every LLC must name a registered agent with an in-state street address.
A Missouri resident, or a corporation authorized in Missouri, whose business office is the registered office. Section on point: RSMo 347.030.
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 text: revisor.mo.gov (pulled October 2026, noted here)
Filing it yourself
Without a service the agent line is zero, provided you qualify, and the state charges the same. Services run $99 to $149 a year.
About these prices
How much does a Missouri registered agent cost per year?
About $99 to $149 per year.
What do three years of agent service cost?
By year three these services have cost $297 to $447.
Is a registered agent required for a Missouri LLC?
Yes, it does. Every LLC must name a registered agent with an in-state street address.
Can the owner serve as the registered agent?
You can, provided you meet both the address and eligibility rules.
What does the state charge the LLC each year?
No report fee at all.
In what year does one service become pricier than another?
There is no crossover inside ten years.
Which registered agent is the best value in Missouri?
Mainstay Filing is first, MO Registered Agent.org second, and Missouri Registered Agent.co third.