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Registered agent worksheets · Missouri

3 Best Registered Agents in Missouri (2026): Worked Prices

After the sums, Mainstay Filing ($149/yr), Missouri Registered Agent.co ($99/yr) and MO Registered Agent.org ($99/yr) lead the 2026 Missouri table of registered agents, in that order. Agent service adds up to $297 to $447 over three years, beginning at $99 to $149.
Worked by the Formation Math editorial team

↓ Sorted by: Best score first, from five weighted checks

Key results

Does the law require one? Yes revisor.mo.gov (checked October 2026) as the source
Year 1 spread $99 to $149 Annual bill
Three-year range $297 to $447 Year one plus two more years
First crossover No crossing Rows keep their positions through year 10

Worksheet: Missouri

Prices are copied from each company's own pricing. Naming another agent does not change what the state collects.

1
Wins on value

1. Mainstay Filing: best for owners who might add a state

$149/yr now, $149/yr at renewal
Year-1 price $149
Renewal price $149/yr
Sum of 3 years $447

Mainstay Filing takes row one because $149 a year now and in whichever state the company registers next.

Its three-year total is $150 higher than Missouri Registered Agent.co's, and the extra paperwork it covers is worth more than that in the score.

The price buys

  • A street address in the state
  • Three government mailings per year, scanned for free
  • Works for LLCs, corporations, LPs, LLPs and nonprofits

Adds up

  • Identical price in all fifty states
  • $149 yearly with no increase

Does not add up

  • Costs $50 more annually
  • Covers the agent role only
2
Missouri only

2. Missouri Registered Agent.co: best for LLCs that stay in one state

$99/yr now, $99/yr at renewal
Year-1 price $99
Renewal price $99/yr
Sum of 3 years $297

Missouri Registered Agent.co scores second. Working: $297 across three years for a company that stays put.

The price buys

  • An address in the state on file
  • Legal documents posted to your account

Adds up

  • $99 a year, flat at renewal
  • Annual price under the national row

Does not add up

  • No help outside the state
3
Missouri only

3. MO Registered Agent.org: best for a nearby alternative

$99/yr now, $99/yr at renewal
Year-1 price $99
Renewal price $99/yr
Sum of 3 years $297

MO Registered Agent.org scores third. Working: $297 across three years for a company that stays put.

Year one and renewal both match Missouri Registered Agent.co.

The price buys

  • An address in the state on file
  • Legal documents posted to your account

Adds up

  • Annual price under the national row
  • $99 a year, flat at renewal

Does not add up

  • No help outside the state

Totals after 1, 2, 3 and 5 years

No. Provider Year 1 total Total at year 2 Total at year 3 Total at year 5
1 Mainstay Filing $149 $298 $447 $745 Visit Mainstay Filing Partner link. We may earn money if you buy.
2 Missouri Registered Agent.co $99 $198 $297 $495 Visit Missouri Registered Agent.co Partner link. We may earn money if you buy.
3 MO Registered Agent.org $99 $198 $297 $495 Visit MO Registered Agent.org Partner link. We may earn money if you buy.

Read November 13, 2026. Each column gets one more renewal. No row passes another within ten years.

Do the sum

Sums for 1 to 5 years. State fees are left out because they match in every row.

Adding up 3 years: Mainstay Filing $447, Missouri Registered Agent.co $297, MO Registered Agent.org $297. Lowest total at that point: Missouri Registered Agent.co.

Missouri state fees (official)

Term Value Where it comes from
LLC formation filing $50 sos.mo.gov (checked October 2026) as the source
State fees added over 3 years $50 Our addition

State total = filing fee + reports in years 2 and 3 + any minimum tax. Items without a fixed amount are left out of the addition.

What settled the order

Mainstay Filing wins items covered per dollar, worth 28%, with Missouri Registered Agent.co close behind.

Missouri Registered Agent.co costs less here, but coverage in all fifty states weighed more.

Missouri registered agent rules, from the source (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. Law cited: 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.

Cited at: revisor.mo.gov (checked October 2026) as the source

Without a service

A qualifying owner can name themselves and pay no agent fee; state fees do not change. The rows above charge $99 to $149 a year for a Missouri address and someone to accept legal papers.

About these figures

What does a registered agent in Missouri cost per year?

$99 to $149 a year across our rows.

What do three years of agent service cost?

$297 to $447 across the rows, not counting state fees.

Does Missouri require a registered agent for an LLC?

Yes. Every LLC must name a registered agent with an in-state street address.

Can the owner be the registered agent?

Yes, if you meet the eligibility and address rules above.

What does the state collect from the LLC each year?

Report fee: zero.

In what year does one service pass another in total cost?

No break-even inside ten years.

Which registered agent is best value in Missouri?

Mainstay Filing, which wins on items covered per dollar. Then Missouri Registered Agent.co and MO Registered Agent.org.

See also

Registered agent worksheets, all 50 states Best registered agents overall The method

Inputs and sources

  1. Check RSMo 347.037 at revisor.mo.gov; last read August 2026.
  2. Check Missouri formation fee: Filing fee at sos.mo.gov; last read October 2026.
  3. Check Missouri registered agent statute at revisor.mo.gov; last read October 2026.
  4. Prices from Mainstay Filing, Missouri service page, November 13, 2026
  5. Prices from Missouri Registered Agent.co, pricing page, November 13, 2026
  6. Prices from MO Registered Agent.org, pricing page, November 13, 2026