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Filing Verdict

Rankings of registered agents, LLC formation and foreign registration services in all 50 states.

Foreign registration verdict · Oklahoma

3 Best Foreign Registration Services in Oklahoma (2026)

Filing Verdict's 2026 verdict on foreign registration services in Oklahoma: Mainstay Filing ($199), OK Registered Agent.org ($199) and Oklahoma Registered Agent.co ($199), in that order. Mainstay Filing takes first place: it prepares the Oklahoma registration for $199 and serves as your registered agent, free in year one, then $149 a year.
The Filing Verdict editorial team
Best here
Spot 1

1. Mainstay Filing: best for companies working in several states

$199 on top of the state fee; the agent is $149 a year from year two

9.3Editorial score
out of 10

Mainstay Filing wins here: $199 on top of the state fee, the same in any state, with the first year of registered agent service included.

The agent renews at $149 a year after the free first year, in this state or any other.

The three-year bill is $100 higher than OK Registered Agent.org's, and the wider coverage is worth that to us.

What you get

  • Foreign registration paperwork prepared and filed
  • A registered agent at no charge for the first year
  • Any legal papers served on the company are scanned the same business day for free

What we like

  • Same-business-day scans of served papers, free
  • One price in all fifty states
  • Registered agent service free in year one
  • Service fee of $199, plus the state's fee

Cons

  • After year one its agent runs $149 a year, $50 above OK Registered Agent.org
Visit Mainstay FilingPartner link. We may earn money if you buy. Our full Mainstay Filing verdict
Lower renewal than Mainstay
Spot 2

2. OK Registered Agent.org: best for companies adding only Oklahoma

Service fee $199, state fee extra; agent $99 yearly after year one

8.9Editorial score
out of 10

Second place goes to OK Registered Agent.org: $199 over the state fee to register in Oklahoma, with the agent renewing at $99.

The plan gives the company an in-state street address as its registered office, and papers served on the company are scanned to your online account.

What you get

  • Registration prepared and filed
  • A year of registered agent service up front

What we like

  • A year of registered agent service is part of the price
  • Then $99 a year for agent service
  • Service fee $199, state fee extra

Cons

  • Covers Oklahoma only; your home state needs its own agent
  • The EIN application is billed separately ($99)
Visit OK Registered Agent.orgPartner link. We may earn money if you buy. Our full OK Registered Agent.org verdict
Best local option
Spot 3

3. Oklahoma Registered Agent.co: best for Oklahoma registrations only

Service fee $199, state fee extra; agent $99 yearly after year one

8.7Editorial score
out of 10

Third place goes to Oklahoma Registered Agent.co: $199 over the state fee to register in Oklahoma, with the agent renewing at $99.

The plan gives the company an in-state street address as its registered office, and papers served on the company are scanned to your online account.

On price and features OK Registered Agent.org and Oklahoma Registered Agent.co match line for line, which makes this a close call between safe choices.

What you get

  • Registration prepared and filed
  • Year-one registered agent service

What we like

  • A $199 service fee plus the registration fee
  • First-year registered agent service comes with it
  • $99 per year keeps the agent from year two

Cons

  • Covers Oklahoma only; your home state needs its own agent
  • The EIN application is billed separately ($99)
Visit Oklahoma Registered Agent.coPartner link. We may earn money if you buy. Our full Oklahoma Registered Agent.co verdict

The 3 verdicts at a glance

No.ServiceVerdict scoreService feeYear twoBest forVisit
1Mainstay Filing9.3$199$149/yrCompanies registered in several states Visit Mainstay FilingPartner link. We may earn money if you buy.
2OK Registered Agent.org8.9$199$99/yrThe lowest agent renewal here Visit OK Registered Agent.orgPartner link. We may earn money if you buy.
3Oklahoma Registered Agent.co8.7$199$99/yrThe lowest agent renewal here Visit Oklahoma Registered Agent.coPartner link. We may earn money if you buy.
The marks out of 10 are editorial: Filing Verdict sets them from the criteria on How we rank, and customers do not rate anything here.

Oklahoma foreign registration service prices for 2026: year one, renewals and three years

ServiceYear 1Year 2Year 3Total, 3 yearsAgent covered in year one
Mainstay Filing$199$149$149$497Free
OK Registered Agent.org$199$99$99$397Included
Oklahoma Registered Agent.co$199$99$99$397Included
Prices were read from each company's own pages on November 12, 2026. Oklahoma's $300 registration fee goes on top of every row and is not counted in these totals.

The reasoning behind the order

Filing Verdict gives total over three years and paperwork the price handles 35% each, and renewal behavior, match to the state and up-front pricing split the rest. In Oklahoma the order was settled by paperwork the price handles.

Registering in a second state involves two states, so one provider with one price in both scored best on coverage, ahead of OK Registered Agent.org.

The full list of criteria and weights is on How we rank.

Oklahoma foreign LLC registration: the fee, the form and the filing office

The company registers with the Oklahoma Secretary of State, Business Filing Department by filing the Application for Registration (Foreign Limited Liability Company) (SOS Form 0081). The state fee is $300. Oklahoma also asks for certificate of good standing, existence or fact, issued within 60 days of filing.

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

Before you file: a checklist

  • Certificate of good standing, existence or fact, issued within 60 days before you file.
  • The exact legal name from the home state, and the date the company was formed there.
  • A registered agent with a street address in the state; each service on this page can act in that role.
  • The $300 state fee, paid with the filing.
  • A calendar entry for the annual certificate and its $25 fee.

What skipping Oklahoma registration can cost

Until it registers, an out-of-state LLC cannot bring suit in Oklahoma courts (18 O.S. 2048(A)). Contracts it signs stay valid (18 O.S. 2048(B)).

Oklahoma foreign registration service: questions answered

Does Oklahoma require an out-of-state LLC to register?

Yes, once it transacts business there. Until it registers, it cannot bring suit in the state's courts.

What does foreign registration cost in Oklahoma?

The state fee is $300, and the service fee is $199.

Which form does Oklahoma use for foreign registration?

Use the Application for Registration (Foreign Limited Liability Company) (SOS Form 0081), filed with the Oklahoma Secretary of State, Business Filing Department.

Does Oklahoma want a certificate from my home state?

Yes. It asks for certificate of good standing, existence or fact, issued within 60 days of filing.

Is a registered agent required once I have registered?

Yes. The company still needs a registered agent here, with a street address in the state.

Which foreign registration service is the best pick in Oklahoma?

Mainstay Filing, because $199 plus the state's own fee, with the registered agent free for the first year and one price in every state.

Related pages

Sources and dates

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