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Step-by-step guide · Oklahoma

3 Best LLC Services in Oklahoma (2026), Step by Step

Start with this 2026 ranking of LLC formation services in Oklahoma: OK Registered Agent.org ($199), Mainstay Filing ($199) and Oklahoma Registered Agent.co ($199), in that order. The costs split into $100 for the state and $397 to $597 for three years of service.
Written by the Simple Filing Guide editorial team

The short route

Cost to file
$100, a single payment
Every year after
$25 annually
Registered agent
Required
Our ranking
OK Registered Agent.org, Mainstay Filing then Oklahoma Registered Agent.co

Our Oklahoma shortlist

The scoring is laid out on this page.

#1 Start here

1. OK Registered Agent.org: best for holding three-year cost down

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

Rank OK Registered Agent.org first, as $199 forms the LLC, and the agent renews each year at $99.

Of the pair, it is cheaper across three years, and we look at cost first.

The annual certificate is excluded from the price.

Checklist: what is included
  • Articles filed on your behalf
  • Agent included in year one
What works
  • Year one of the agent comes with it
  • Year two onward: $99
  • Only $199 to form
Gaps
  • Not included: the annual certificate
  • Add $99 for EIN help
Start with OK Registered Agent.org Partner link. We may earn money if you buy.
#2 All fifty states

2. Mainstay Filing: best for owners who want upkeep handled

$199 a year plus $100 for the state

Mainstay Filing follows since the annual certificate sits inside the $199 annual price, alongside formation and the registered agent.

OK Registered Agent.org is $200 lower across three years, which is enough to rank above it.

Filing the annual certificate is part of the service, and only the state's $25 is added.

Checklist: what is included
  • The formation filing, done
  • Registered agent year-round
  • Annual certificate handled when due
  • Help with your EIN
  • State fee with no markup
What works
  • Year two costs $199
  • $199 a year with no add-ons needed
  • No extra fee to get your EIN
Gaps
  • OK Registered Agent.org undercuts its renewal by $100
Start with Mainstay Filing Partner link. We may earn money if you buy.
#3 In-state option

3. Oklahoma Registered Agent.co: best for a second in-state filer

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

In third place, Oklahoma Registered Agent.co, where $199 forms the LLC, and the agent renews each year at $99.

The annual certificate is excluded from the price.

It charges the same as OK Registered Agent.org, so the order between them is a close call.

Checklist: what is included
  • Articles filed on your behalf
  • Agent included in year one
What works
  • Year two onward: $99
  • Year one of the agent comes with it
  • Only $199 to form
Gaps
  • Not included: the annual certificate
  • Add $99 for EIN help
Start with Oklahoma Registered Agent.co Partner link. We may earn money if you buy.

Cost check

#CompanyStartRenewal costTotal for 3 yearsWhat is covered
1 OK Registered Agent.org $199$99/yr$397articles filed on your behalf; agent included in year one Start with OK Registered Agent.org Partner link. We may earn money if you buy.
2 Mainstay Filing $199$199/yr$597the formation filing, done; Registered agent year-round; annual certificate handled when due Start with Mainstay Filing Partner link. We may earn money if you buy.
3 Oklahoma Registered Agent.co $199$99/yr$397articles filed on your behalf; agent included in year one Start with Oklahoma Registered Agent.co Partner link. We may earn money if you buy.

Prices as of November 13, 2026; the state's own fees are listed in the checklist below.

Work through these

What will forming an LLC cost in this state?

Plan on $100 to the state and $199 to a service in the first year.

Counting the recurring report, the state's own fees reach $150 by year three. sos.ok.gov / October 2026 / confirmed

Who receives the filing?

One document does it: the Articles of Organization (Form 0073), sent to the Oklahoma Secretary of State.

sos.ok.gov / October 2026 / confirmed

Does this state require 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.

sos.ok.gov / October 2026 / confirmed

What does upkeep involve?

Keep the annual certificate current: you file it every year for $25. The due date, per the state, is anniversary date of the filing of the Articles of Organization; do not miss it.

sos.ok.gov / August 2026 / confirmed

Could the owner handle the filing?

Sure. Skip the service and you pay the state $150 over three years.

Expect to pay $397 to $597 over three years if you hire.

What decided the ranking?

Total for three years (37% of the score) is where OK Registered Agent.org does best.

Start with total for three years, then filing jobs included, then three smaller checks.

Choose OK Registered Agent.org over Mainstay Filing and keep $200 across three years.

See the scoring

Oklahoma formation checklist

StepDetailsWhere it is from
Formation fee $100sos.ok.gov / October 2026 / confirmed
Registered agent Requiredsos.ok.gov / October 2026 / confirmed
Annual certificate $25 every yearsos.ok.gov / August 2026 / confirmed
What the state collects in three years $150The rows above, totaled

The final row is a sum that we calculated, not a figure printed by the state: filing, two reports and any minimum tax.

More questions

Is the EIN application included?

Budget $99 for OK Registered Agent.org or $99 for Oklahoma Registered Agent.co to get an EIN, and nothing extra at Mainstay Filing.

How do the three-year costs compare?

Three-year costs: OK Registered Agent.org, $397; Mainstay Filing, $597; Oklahoma Registered Agent.co, $397 (services only).

What are the numbers based on?

State-set fees come from Oklahoma's publications; what services charge comes from the prices they post.

Is a service required by law?

No. A service charges for labor and the agent role, not for anything the state demands.

Any yearly state fees?

Keep the annual certificate current: you file it every year for $25. The due date, per the state, is anniversary date of the filing of the Articles of Organization; do not miss it.

Who ranks first in Oklahoma?

OK Registered Agent.org leads on total for three years, ahead of Mainstay Filing and Oklahoma Registered Agent.co.

Where each fact comes from

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