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LLC Straight Talk What it costs, what you have to file, who's worth paying.

No fluff · Oklahoma

3 Best LLC Services in Oklahoma (2026) and What Oklahoma Really Requires

For LLC formation services in Oklahoma in 2026, we'd rank Mainstay Filing ($199), Oklahoma Registered Agent.co ($199) and OK Registered Agent.org ($199), best first. Whoever you pick, Oklahoma charges $100 to file, and the services run $397 to $597 over three years.
Straight from the LLC Straight Talk editorial team

The short of it

The short of it
What the state charges
$100, one time
Every year after
$25 every year
Registered agent
Yes, it's the law
Who we'd use
Mainstay Filing, Oklahoma Registered Agent.co then OK Registered Agent.org

Who we'd use in Oklahoma

Prices come from each company's own page. Here's how we judge.

#1 Who we'd call first

1. Mainstay Filing: best for skipping the annual certificate

Annual price $199, renewal price $199, state fee on top

The annual certificate gets filed inside the $199 yearly price, along with formation and the registered agent. That's why Mainstay Filing is first.

Here's the catch: Oklahoma Registered Agent.co costs $200 less over three years, and you'd do more of the paperwork yourself.

The annual certificate is part of the service. The only extra's the state's $25.

What you get

  • Formation handled start to finish
  • Registered agent for twelve straight months
  • Annual certificate done for you
  • EIN application
  • State fees passed through, no markup

Pluses

  • The EIN application's included
  • A flat $199 a year
  • No jump when you renew ($199)

What's not

  • $100 a year above Oklahoma Registered Agent.co after year one
#2 Oklahoma only

2. Oklahoma Registered Agent.co: best for a business that never leaves one state

$199 plus the state fee, then $99 a year

Three years with it total $397, thanks to a $99 renewal. That puts Oklahoma Registered Agent.co second.

Nobody here files the annual certificate for you.

What you get

  • Your LLC, filed
  • The first agent year's on them

Pluses

  • Formation fee of $199
  • The first agent year's included
  • Agent renews at $99

What's not

  • You're stuck filing the annual certificate
  • EIN's not included ($99)
#3 Oklahoma only

3. OK Registered Agent.org: best for another in-state choice

$199 plus the state fee, then $99 a year

Three years with it total $397, thanks to a $99 renewal. That puts OK Registered Agent.org third.

Nobody here files the annual certificate for you.

It charges what Oklahoma Registered Agent.co charges.

What you get

  • Your LLC, filed
  • The first agent year's on them

Pluses

  • Agent renews at $99
  • The first agent year's included
  • Formation fee of $199

What's not

  • You're stuck filing the annual certificate
  • EIN's not included ($99)

The numbers

#CompanyFirst yearThen3 yearsCovers
1 Mainstay Filing $199$199/yr$597formation handled start to finish; registered agent for twelve straight months; annual certificate done for you Go to Mainstay Filing Partner link. We may earn money if you buy.
2 Oklahoma Registered Agent.co $199$99/yr$397Your LLC, filed; The first agent year's on them Go to Oklahoma Registered Agent.co Partner link. We may earn money if you buy.
3 OK Registered Agent.org $199$99/yr$397Your LLC, filed; The first agent year's on them Go to OK Registered Agent.org Partner link. We may earn money if you buy.

Service fees only, from each company's prices on November 13, 2026. State fees are the same whoever you pick.

The questions that matter

How much do I need to start an LLC in this state?

The state takes $100, and a service that files for you in year one adds $199.

Across three years the state collects $150, filing fee included. go check sos.ok.gov, last confirmed October 2026

Which form do I file, and where?

The Oklahoma Secretary of State takes the Articles of Organization (Form 0073). Once it approves, you've got a company.

go check sos.ok.gov, last confirmed October 2026

Does the state make me have 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.

go check sos.ok.gov, last confirmed October 2026

What's due in later years?

You'll file the annual certificate every year, and it's $25 each time. Here's the date the state gives: anniversary date of the filing of the Articles of Organization. Don't miss it.

go check sos.ok.gov, last confirmed August 2026

Do I have to pay somebody?

You can. Skip the service and your three-year bill is the state's $150.

A service adds $397 to $597 over three years, and with Mainstay Filing the reports are in that price.

What put number one on top?

On jobs the price actually covers (30% of the score), Mainstay Filing wins.

65% of the score comes from money out the door in three years and jobs the price actually covers.

Oklahoma wants the annual certificate every year, and filing it is only part of the first pick's deal.

The five tests

What Oklahoma requires to form an LLC

RequirementThe rule or the numberCheck it
Fee to form $100go check sos.ok.gov, last confirmed October 2026
Registered agent Yes, it's the lawgo check sos.ok.gov, last confirmed October 2026
Annual certificate $25 every yeargo check sos.ok.gov, last confirmed August 2026
What the state collects in three years $150The rows above, added up

The last row is our math, not the state's: filing fee, plus the reports in years two and three, plus any minimum tax. If a cost has no fixed amount, like a newspaper notice, it's explained above and left out.

Still wondering?

Is the EIN application included?

Only Mainstay Filing throws it in. At the others it's $99 (Oklahoma Registered Agent.co) and $99 (OK Registered Agent.org).

What's the three-year damage for each?

Mainstay Filing will set you back $597, and Oklahoma Registered Agent.co will set you back $397, and OK Registered Agent.org will set you back $397, with state fees on top.

Are the fees official?

State fees come from Oklahoma's official documents, and service fees come from each company's own price page. Both are dated here.

Do I have to use a service?

No. You can file with the state yourself. A service saves you time and can be your agent, but nothing makes you hire one.

Any yearly state fees?

You'll file the annual certificate every year, and it's $25 each time. Here's the date the state gives: anniversary date of the filing of the Articles of Organization. Don't miss it.

Who's first in Oklahoma?

Mainstay Filing, because for $199 a year, formation, the registered agent and the annual certificate are all handled. After that, Oklahoma Registered Agent.co and OK Registered Agent.org.

Keep reading

Don't take our word for it

  1. Don't take our word on Oklahoma Secretary of State, Business: sos.ok.gov, August 2026, is where it's from, no filter
  2. Don't take our word on Oklahoma Secretary of State, Business: sos.ok.gov, August 2026, is where it's from, no filter
  3. Don't take our word on Oklahoma report due date: law.justia.com, August 2026, is where it's from, no filter
  4. Don't take our word on 18 O.S. § 2004: sos.ok.gov, August 2026, is where it's from, no filter
  5. Don't take our word on Oklahoma formation fee: Filing fee: sos.ok.gov, October 2026, is where it's from, no filter
  6. The Mainstay Filing Oklahoma service page as of November 13, 2026
  7. The Oklahoma Registered Agent.co pricing page as of November 13, 2026
  8. The OK Registered Agent.org pricing page as of November 13, 2026