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Formation Explained

LLC rules, unpacked for first-time owners.

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Explained · Oklahoma

3 Best LLC Services in Oklahoma (2026), Compared

When you need LLC formation services in Oklahoma, our 2026 recommendation, best to last, is Oklahoma Registered Agent.co ($199), Mainstay Filing ($199) and OK Registered Agent.org ($199). Oklahoma charges $100 for the filing itself. Service fees across three years come to $397 to $597.
Formation Explained editorial team

Quick explanation

Fee to file
$100, charged once
Upkeep each year
$25 once a year
Registered agent
Yes, by law
Our recommendations
Oklahoma Registered Agent.co, Mainstay Filing then OK Registered Agent.org

Oklahoma: the ranked picks

Prices come from each company's own pricing page. The ranking is explained on how we pick.
1 Number one

1. Oklahoma Registered Agent.co: best for a lean start

Year one costs $199; later years cost $99

Our first recommendation is Oklahoma Registered Agent.co, because three years add up to $397 with the $99 renewal.

Its three-year cost is lower than Mainstay Filing's, which is the factor we weigh most.

Handling the annual certificate stays with you.

Includes

  • State filing done for you
  • Year-one registered agent

Points in its favor

  • $99 a year afterward
  • First-year agent in the price
  • $199 plus the state fee

Where it falls short

  • The annual certificate is not covered
  • Charges $99 to apply for the EIN
2 Most complete

2. Mainstay Filing: best for knowing the yearly bill in advance

$199 a year, with the $100 state fee on top

Number 2 on the list is Mainstay Filing, where $199 a year covers the formation, the registered agent and every annual certificate.

Across three years it is $200 pricier than Oklahoma Registered Agent.co.

Filing the annual certificate is included, and the $25 state fee is passed along as is.

Includes

  • Articles prepared and submitted
  • Registered agent for the whole year
  • Annual certificate handled when due
  • An EIN, applied for
  • Official fees at cost

Points in its favor

  • One yearly price: $199
  • Year two is $199
  • EIN application is part of the package

Where it falls short

  • Carries a $100 annual premium over Oklahoma Registered Agent.co
3 Oklahoma specialist

3. OK Registered Agent.org: best for a second local choice

Year one costs $199; later years cost $99

OK Registered Agent.org takes the third slot: three years add up to $397 with the $99 renewal.

Handling the annual certificate stays with you.

The prices match Oklahoma Registered Agent.co, so pick the one you prefer.

Includes

  • State filing done for you
  • Year-one registered agent

Points in its favor

  • First-year agent in the price
  • $199 plus the state fee
  • $99 a year afterward

Where it falls short

  • The annual certificate is not covered
  • Charges $99 to apply for the EIN

How they stack up

#CompanyFirst-year priceRenewal priceOver three yearsIncluded in the price
1 Oklahoma Registered Agent.co $199$99/yr$397state filing done for you; Year-one registered agent Open Oklahoma Registered Agent.coPartner link. We may earn money if you buy.
2 Mainstay Filing $199$199/yr$597articles prepared and submitted; registered agent for the whole year; annual certificate handled when due Open Mainstay FilingPartner link. We may earn money if you buy.
3 OK Registered Agent.org $199$99/yr$397state filing done for you; Year-one registered agent Open OK Registered Agent.orgPartner link. We may earn money if you buy.
Company prices as of November 13, 2026, excluding state fees.

Questions explained

What will forming an LLC cost me?

Filing on your own costs $100; a service raises that by $199.

State fees for years one through three: $150. see sos.ok.gov, October 2026

Who receives the filing?

The LLC comes into being when the Oklahoma Secretary of State approves the Articles of Organization (Form 0073).

see sos.ok.gov, October 2026

Does the state insist on a registered agent?

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

The LLC itself, an Oklahoma resident, or a corporation, LLC or partnership formed in Oklahoma or qualified there.

see sos.ok.gov, October 2026

What do I owe after the LLC is formed?

Plan on $25 every year for the annual certificate. The state sets the deadline as anniversary date of the filing of the Articles of Organization; put it in your calendar.

see sos.ok.gov, August 2026

Is it possible to file it myself?

It is allowed. A do-it-yourself filer pays $150 in state fees across three years.

A service adds $397 to $597 over three years to do the filings and, with Mainstay Filing, the reports.

What decided the ranking?

What three years cost counts for 34%, and Oklahoma Registered Agent.co comes out ahead on it.

Five criteria set the order: what three years cost (34%), how much work the price handles (28%), prices spelled out (16%), renewal terms (12%) and reach beyond one state (10%).

Over three years Oklahoma Registered Agent.co totals $397, which is $200 below Mainstay Filing.

The method in detail

Official Oklahoma requirements

What it coversFee or ruleWhere it comes from
Fee to file the LLC$100see sos.ok.gov, October 2026
Registered agentYes, by lawsee sos.ok.gov, October 2026
Annual certificate$25 every yearsee sos.ok.gov, August 2026
Paid to the state in three years$150Sum of the figures above
Three-year state total = the filing + reports in years two and three + minimum tax where there is one. Variable costs stay out.

More explanations

Who takes care of the EIN?

Mainstay Filing applies for it at no extra charge. Oklahoma Registered Agent.co adds $99; OK Registered Agent.org adds $99.

What are the three-year totals?

Oklahoma Registered Agent.co at $397, Mainstay Filing at $597, OK Registered Agent.org at $397, with state fees on top.

What are the figures based on?

The state side uses Oklahoma's own publications. The service side uses published company prices.

Could I skip the service?

No law demands one. A service is a convenience.

Are there recurring state costs?

Plan on $25 every year for the annual certificate. The state sets the deadline as anniversary date of the filing of the Articles of Organization; put it in your calendar.

Who would you hire first in Oklahoma?

Oklahoma Registered Agent.co, because year one costs $199 and each later year $99. Then Mainstay Filing and OK Registered Agent.org.

References

  1. Oklahoma Secretary of State, Business via sos.ok.gov, as of August 2026
  2. Oklahoma Secretary of State, Business via sos.ok.gov, as of August 2026
  3. Oklahoma report due date via law.justia.com, as of August 2026
  4. 18 O.S. § 2004 via sos.ok.gov, as of August 2026
  5. Oklahoma formation fee: Filing fee via sos.ok.gov, as of October 2026
  6. Oklahoma Registered Agent.co pricing page, read November 13, 2026
  7. Mainstay Filing Oklahoma service page, read November 13, 2026
  8. OK Registered Agent.org pricing page, read November 13, 2026