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Formation Scorecard

Foreign registration scorecard · Oklahoma

3 Best Foreign Registration Services in Oklahoma (2026)

On the Formation Scorecard 2026 scorecard for foreign registration services in Oklahoma the order reads Oklahoma Registered Agent.co ($199), Mainstay Filing ($199) and OK Registered Agent.org ($199). Oklahoma Registered Agent.co posts the top score: $199 plus the state fee and a year of registered agent service, then $99 yearly for the agent.
Researched and written by the Formation Scorecard editorial team
Rank #1 Number one here

1. Oklahoma Registered Agent.co: best for companies that add just Oklahoma

9.1 Editor score out of 10
$199 service fee plus the state fee; agent $99 yearly from year two

Oklahoma Registered Agent.co leads the card: the Oklahoma registration at $199, first agent year included, then $99 a year.

The plan puts the company at an in-state street address and scans papers served on it to your online account.

It pulls ahead of Mainstay Filing on three-year cost.

What you get

  • Oklahoma registration filed for you
  • Year-one registered agent service included

Strengths

  • A year of registered agent service is built in
  • Registration at $199, with the state fee added
  • Then $99 a year to keep the agent

Watch for

  • Limited to Oklahoma; your home state still needs an agent
  • $99 extra for the EIN application
Visit Oklahoma Registered Agent.coPartner link. We may earn money if you buy. Oklahoma Registered Agent.co: the full write-up
Rank #2 Fifty-state coverage

2. Mainstay Filing: best for companies spread across states

8.9 Editor score out of 10
$199 on top of the state fee, then the agent at $149 a year from year two

Mainstay Filing takes second spot: $199 on top of the state's fee, with a free first year as your registered agent and the same price in every state.

After the free first year the agent costs $149 a year, in this state or any other.

Oklahoma Registered Agent.co undercuts Mainstay Filing by $100 over three years, and that gap costs Mainstay points on cost.

What you get

  • Registration prepared and submitted
  • The first registered agent year at no charge
  • Served papers scanned and uploaded the day they arrive, free

Strengths

  • $199 service fee, with the state fee on top
  • Registered agent free for year one
  • Same price across all fifty states
  • Served papers scanned on the day they arrive, free

Watch for

  • Agent renewal of $149 is $50 more than Oklahoma Registered Agent.co charges
Visit Mainstay FilingPartner link. We may earn money if you buy. Mainstay Filing: the full write-up
Rank #3 Best local option

3. OK Registered Agent.org: best for registrations in Oklahoma only

8.7 Editor score out of 10
$199 service fee plus the state fee; agent $99 yearly from year two

OK Registered Agent.org takes third spot: the Oklahoma registration at $199, first agent year included, then $99 a year.

The plan puts the company at an in-state street address and scans papers served on it to your online account.

Price for price and feature for feature, Oklahoma Registered Agent.co and OK Registered Agent.org match, which leaves the order between them a narrow call.

What you get

  • Oklahoma registration filed for you
  • One year of registered agent service

Strengths

  • $199 to register, state fee extra
  • $99 per year for the agent after the first
  • Includes the first registered agent year

Watch for

  • Limited to Oklahoma; your home state still needs an agent
  • $99 extra for the EIN application
Visit OK Registered Agent.orgPartner link. We may earn money if you buy. OK Registered Agent.org: the full write-up

The 3 entries on one card

Place Service Card score Service fee Year two Best for Go
1 Oklahoma Registered Agent.co 9.1 $199 $99/yr The lowest agent renewal we rank here Visit Oklahoma Registered Agent.coPartner link. We may earn money if you buy.
2 Mainstay Filing 8.9 $199 $149/yr Companies spread over several states Visit Mainstay FilingPartner link. We may earn money if you buy.
3 OK Registered Agent.org 8.7 $199 $99/yr The lowest agent renewal we rank here Visit OK Registered Agent.orgPartner link. We may earn money if you buy.

Every number out of 10 is an editorial mark from Formation Scorecard, produced with the criteria on How we rank, not a customer rating.

Oklahoma foreign registration service cost in 2026: first year, renewal and the three-year tally

Service First year Second year Third year Three-year tally Agent paid in year one
Oklahoma Registered Agent.co $199 $99 $99 $397 Included
Mainstay Filing $199 $149 $149 $497 Free
OK Registered Agent.org $199 $99 $99 $397 Included

Each price comes from the company's own site, read on November 12, 2026. Add Oklahoma's $300 registration fee to each row; the tally above leaves it out.

The case for Oklahoma Registered Agent.co in first

Formation Scorecard scores cost across three years and coverage of the price at 25% each. Renewal terms, state-by-state fit and pricing clarity account for the other 50%. In Oklahoma the tie was broken by cost across three years.

Oklahoma Registered Agent.co tallies $397 across three years, $100 below Mainstay Filing. Both include the first agent year, so the renewal price after year one broke the tie.

Every criterion and weight appears on How we rank.

Foreign LLC registration in Oklahoma: fee, form and filing office

An outside company registers by sending the Application for Registration (Foreign Limited Liability Company) (SOS Form 0081) to the Oklahoma Secretary of State, Business Filing Department, with a $300 state fee. Oklahoma additionally requires certificate of good standing, existence or fact, dated no more than 60 days before filing.

Once registered, the company files the annual certificate ($25), due anniversary of the registration date.

Gather these before filing

  • Certificate of good standing, existence or fact, issued no earlier than 60 days before filing.
  • The company name exactly as the home state has it, plus the date it was formed.
  • An in-state registered agent; any service on this card can fill that role.
  • The state fee of $300, sent in with the filing.
  • A calendar date for the annual certificate and its $25 fee.

The price of ignoring Oklahoma registration

An unregistered outside LLC cannot sue in Oklahoma courts until it registers (18 O.S. 2048(A)). Its contracts remain valid (18 O.S. 2048(B)).

Oklahoma foreign registration service: quick questions

Does Oklahoma make an outside LLC register before operating?

Yes, when the company does business there. Until it registers, the state's courts are closed to its lawsuits.

What will foreign registration run in Oklahoma?

Expect $300 for the state plus $199 for the service.

What is the registration form called in Oklahoma?

The form goes to the Oklahoma Secretary of State, Business Filing Department; its exact name is in the facts above.

Is a home-state certificate part of the Oklahoma filing?

Yes, the state wants certificate of good standing, existence or fact, no older than 60 days.

Does a registered company still need a registered agent?

Yes, a registered agent with an in-state street address has to stay on file.

Which foreign registration service leads the card for Oklahoma?

Oklahoma Registered Agent.co, since $199 beyond the state fee to register in Oklahoma, agent renewing at $99.

Read next

Where the figures come from

  1. Oklahoma Secretary of State, Business Filing Department, as of August 2026
  2. Oklahoma Secretary of State, Business Filing Department, as of August 2026
  3. Oklahoma report due date, as of August 2026
  4. 18 O.S. § 2004, as of August 2026
  5. Oklahoma formation fee: Filing fee, official source, as of October 2026
  6. Procedures for registering a foreign LLC, as of October 2026
  7. 18 O.S. § 2049, transacting business, as of October 2026
  8. Oklahoma Statutes Title 18, foreign LLC necessity of registration, as of November 2026
  9. Read on November 12, 2026: pricing and service pages for Oklahoma Registered Agent.co
  10. Read on November 12, 2026: Oklahoma service page for Mainstay Filing
  11. Read on November 12, 2026: pricing and service pages for OK Registered Agent.org