3 Best Foreign Registration Services in Oklahoma (2026): Your Questions Answered
Wondering about foreign registration services in Oklahoma, for 2026 our order is OK Registered Agent.org ($199), Oklahoma Registered Agent.co ($199) and Mainstay Filing ($199). The state fee is $300, the same for everyone, and three years of service fees run $397 to $497.
Answered by the Ask About LLC editorial team ·
Four quick answers
What does the state charge to register?
$300
Home-state certificate?
Yes (60 days old at most)
Once registered
$25, annual certificate
Who to ask
OK Registered Agent.org, Oklahoma Registered Agent.co then Mainstay Filing
Oklahoma: the ranking
The order follows our five questions: three-year cost first, then how much the price covers.
1Our first answer
1. OK Registered Agent.org: best for adding only this state
Registering costs $199, then $99 a year for the agent
OK Registered Agent.org is the one to ask first in Oklahoma because registering costs $199 over the state fee, with the agent covered in year one, then $99 a year.
Yes, it costs less than Mainstay Filing over three years, and cost is the question we weigh most.
What the price covers
Foreign filing submitted
Agent included in year one
Good news
A free agent year at the start
$99 a year from year two
Only $199 to register
The catch
Serves Oklahoma alone, so the home state needs another agent
3. Mainstay Filing: best for registering in many states
Registering costs $199, then $149 a year for the agent
Mainstay Filing is the third answer because $199 over the state fee registers you, the registered agent is free in year one and then it is $149 a year.
The $100 difference from OK Registered Agent.org over three years accounts for the lower place.
After the free year, the registered agent renews at $149.
Registering costs $300 at the state, plus $199 if you hire help.
By year three the state will have collected $350. sos.ok.gov, read in October 2026 for this answer
What registers the LLC?
Send the Application for Registration (Foreign Limited Liability Company) (SOS Form 0081) to the Oklahoma Secretary of State, Business Filing Department; the registration is complete when it accepts the filing.
Enclose certificate of good standing, existence or fact dated no earlier than 60 days.
Is there a filing that repeats?
Down the road there is the annual certificate, which costs $25.
When the filing is due, per the state: anniversary of the registration date.
Why is the list in this order?
OK Registered Agent.org does best on what you pay over three years, which carries 33% of our score.
Two questions carry most of the weight, what you pay over three years (33%) and chores the price takes care of (29%), and three smaller ones follow.
Three years at OK Registered Agent.org cost $397, $100 less than Mainstay Filing.
You can check the total by hand: take the filing fee, add two reports and any minimum tax. Costs that have no set amount are left for the text to explain.
Still wondering?
Do I still need an agent in my home state?
Expect to name one in each state. Mainstay Filing is active in all fifty, so it can serve the pair together.
How do the three-year totals compare?
For three years you would pay $397 at OK Registered Agent.org, $397 at Oklahoma Registered Agent.co, $497 at Mainstay Filing, before state fees.
Where do these numbers come from?
State fees come from Oklahoma's official documents, and service fees come from each company's own pricing page. Both carry dates on this page.
Do I have to use a service?
No. What the law asks for is a filing, and it does not say who has to send it.
Will a service file the registration for me?
They do. All the picks prepare and send the registration, so the only thing that changes with your choice is the service fee.
Which one do you recommend in Oklahoma?
OK Registered Agent.org comes first: $199 gets the registration filed, and the agent renews at $99. Next are Oklahoma Registered Agent.co and Mainstay Filing.
Sources for this answer
Ask-about note for Oklahoma Secretary of State, Business: the state publishes it at sos.ok.gov, confirmed August 2026, so you can look it up yourself
Ask-about note for Oklahoma Secretary of State, Business: the state publishes it at sos.ok.gov, confirmed August 2026, so you can look it up yourself
Ask-about note for Oklahoma report due date: the state publishes it at law.justia.com, confirmed August 2026, so you can look it up yourself
Ask-about note for 18 O.S. § 2004: the state publishes it at sos.ok.gov, confirmed August 2026, so you can look it up yourself
Ask-about note for Oklahoma formation fee: Filing fee: the state publishes it at sos.ok.gov, confirmed October 2026, so you can look it up yourself
Ask-about note for Procedures for registering a foreign: the state publishes it at sos.ok.gov, confirmed October 2026, so you can look it up yourself
Ask-about note for 18 O.S. § 2049, transacting: the state publishes it at oscn.net, confirmed October 2026, so you can look it up yourself
Ask-about note for Oklahoma Statutes Title 18, foreign: the state publishes it at oklegislature.gov, confirmed November 2026, so you can look it up yourself
OK Registered Agent.org pricing page, read November 13, 2026
Oklahoma Registered Agent.co pricing page, read November 13, 2026
Mainstay Filing Oklahoma service page, read November 13, 2026