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Short reply · Missouri

3 Best LLC Services in Missouri (2026), Ranked

In Missouri for 2026, rank LLC formation services Missouri Registered Agent.co ($199), MO Registered Agent.org ($199) and Mainstay Filing ($199). Any pick pays the same $50 state filing fee; service fees come to $397 to $597 in three years.

LLC Q and A editorial team ·

Quick answers

Fee to the state
$50, one time
Then
None
Registered agent
Yes, by statute
Our pick
Missouri Registered Agent.co, MO Registered Agent.org then Mainstay Filing

Best in Missouri, in order

Prices come from each company's own page. See the method.
1Top pick

1. Missouri Registered Agent.co: best for a one-state LLC

Form for $199; renew at $99 a year

#1 in Missouri: Missouri Registered Agent.co, because it opens at $199 including the first agent year and renews at $99.

Three years cost less here than at Mainstay Filing; cost carries the most weight.

Price covers

  • Missouri formation filing
  • First-year agent included

For

  • Then $99 a year
  • $199 to form the LLC
  • First agent year comes with it

Against

  • $99 charge for the EIN application
Go to Missouri Registered Agent.coPartner link. We may earn money if you buy.
2Missouri specialist

2. MO Registered Agent.org: best for another local option

Form for $199; renew at $99 a year

MO Registered Agent.org ranks second since it opens at $199 including the first agent year and renews at $99.

It charges exactly what Missouri Registered Agent.co charges.

Price covers

  • Missouri formation filing
  • First-year agent included

For

  • $199 to form the LLC
  • First agent year comes with it
  • Then $99 a year

Against

  • $99 charge for the EIN application
Go to MO Registered Agent.orgPartner link. We may earn money if you buy.
3All fifty states

3. Mainstay Filing: best for formation plus agent for one price

$199/yr plus the $50 state fee

Third: Mainstay Filing, because $199 a year covers formation and a registered agent, with the EIN application included.

A $200 three-year gap to Missouri Registered Agent.co explains the lower place.

Price covers

  • Formation filed with the state
  • Registered agent all year
  • EIN application filed
  • State fees passed through, no markup

For

  • Renews at $199
  • No fee for the EIN application
  • One fee, $199 a year

Against

  • $100/yr above Missouri Registered Agent.co after year one
  • Bundle saves less in this state
Go to Mainstay FilingPartner link. We may earn money if you buy.

Comparison

#CompanyFirst yearRenewalTotal, 3 yearsIncludes
1Missouri Registered Agent.co$199$99/yr$397missouri formation filing; First-year agent includedGo to Missouri Registered Agent.coPartner link. We may earn money if you buy.
2MO Registered Agent.org$199$99/yr$397missouri formation filing; First-year agent includedGo to MO Registered Agent.orgPartner link. We may earn money if you buy.
3Mainstay Filing$199$199/yr$597formation filed with the state; registered agent all year; EIN application filedGo to Mainstay FilingPartner link. We may earn money if you buy.
Service fees only, from company price pages read November 13, 2026. State fees are identical for every pick.

Questions and replies

How much to start an LLC in this state?

$50 at the state. A service adds $199 in year one.

State fees across three years, filing included: $50. source of record: sos.mo.gov, confirmed October 2026

Which form, filed where?

Your filing is the Articles of Organization (Form LLC-1), and it is sent to the Missouri Secretary of State.

source of record: sos.mo.gov, confirmed October 2026

A registered agent required?

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.

source of record: revisor.mo.gov, confirmed October 2026

Later-year obligations?

No report comes due.

Is a service required?

Yes; your three-year bill would be the state's $50.

A service adds $397 to $597 over three years.

Why this order?

Three-year price (36%) goes to Missouri Registered Agent.co.

Two criteria dominate: three-year price (36%) and chores removed from your list (26%).

Missouri Registered Agent.co: $397 for three years, $200 below Mainstay Filing.

Method

Missouri LLC requirements

RequirementRule or amountSource
Fee to form$50source of record: sos.mo.gov, confirmed October 2026
Registered agentYes, by statutesource of record: revisor.mo.gov, confirmed October 2026
Three-year state total$50Total of the rows above
Three-year total = filing + report in year 2 + report in year 3 + minimum tax (if any). Fees without a fixed amount, like newspaper notices, are not summed.

More replies

EIN application included?

Only Mainstay Filing includes it. Elsewhere: Missouri Registered Agent.co $99, MO Registered Agent.org $99.

Three-year cost of each?

Missouri Registered Agent.co totals $397 and MO Registered Agent.org totals $397 and Mainstay Filing totals $597, before state fees.

Are the fees official?

State fees cite their official page; service prices come from the company's own site.

Do I have to hire one?

No. Owners can file directly. A service saves time and can act as agent.

Yearly state costs?

No report comes due.

Which LLC service should I use in Missouri?

Missouri Registered Agent.co: three years total $397 with its $99 renewal. Behind it: MO Registered Agent.org and Mainstay Filing.

Sources

  1. Reference line for RSMo 347.037, drawn from revisor.mo.gov and confirmed August 2026, as noted by our editors
  2. Reference line for Missouri formation fee: Filing fee, drawn from sos.mo.gov and confirmed October 2026, as noted by our editors
  3. Reference line for Missouri registered agent statute, drawn from revisor.mo.gov and confirmed October 2026, as noted by our editors
  4. Missouri Registered Agent.co pricing page, read November 13, 2026
  5. MO Registered Agent.org pricing page, read November 13, 2026
  6. Mainstay Filing Missouri service page, read November 13, 2026