Place1
Our top pickMainstay Filing
1. Mainstay Filing: best for expanding companies
Service fee $199 plus state fee; renewal $149/yr
Our mark9.3out of 10
Mainstay Filing takes the top spot: $199 plus the state's own fee, with your registered agent free for the first year and one price in every state.
From year two the agent costs $149 a year, the same in every state.
You pay $100 more over three years than with OK Registered Agent.org, for more in the price.
What you get
- Registration prepared and filed
- Your registered agent, free for the first year
- Service of process scanned the same business day, no fee
Why pick it
- Service of process scanned the same business day, no fee
- $199 service fee
- Registered agent free for the first year
- Fifty-state coverage
Less good
- Renewal costs $50 more than OK Registered Agent.org
Place2
Low renewalOK Registered Agent.org
2. OK Registered Agent.org: best for Oklahoma registration on a budget
Service fee $199 plus state fee; renewal $99/yr
Our mark9.1out of 10
OK Registered Agent.org comes second with a $199 service fee for the Oklahoma registration and a $99 agent renewal.
Served documents are scanned and shared online, and the registered office is an Oklahoma street address.
What you get
- Foreign registration done for you
- A year of registered agent service
Why pick it
- Service fee $199
- Agent renews at $99
- A year of registered agent service included
Less good
- No help outside Oklahoma
- EIN costs $99 more
Place3
Best for an Oklahoma-only companyOklahoma Registered Agent.co
3. Oklahoma Registered Agent.co: best for a second Oklahoma option
Service fee $199 plus state fee; renewal $99/yr
Our mark8.9out of 10
In third place, Oklahoma Registered Agent.co: a $199 service fee for the Oklahoma registration and a $99 agent renewal.
Served documents are scanned and shared online, and the registered office is an Oklahoma street address.
Same prices and features as OK Registered Agent.org; pick whichever you prefer.
What you get
- Foreign registration done for you
- A year of registered agent service
Why pick it
- A year of registered agent service included
- Service fee $199
- Agent renews at $99
Less good
- No help outside Oklahoma
- EIN costs $99 more
Quick comparison: Oklahoma
| Rank | Service | Our score | Service fee | Year two | Best for | Link |
|---|
| 1 | Mainstay Filing | 9.3 | $199 | $149/yr | Companies registered in several states | Visit Mainstay FilingPartner link. We may earn money if you buy. |
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| 2 | OK Registered Agent.org | 9.1 | $199 | $99/yr | Lowest agent renewal on this list | Visit OK Registered Agent.orgPartner link. We may earn money if you buy. |
|---|
| 3 | Oklahoma Registered Agent.co | 8.9 | $199 | $99/yr | Lowest agent renewal on this list | Visit Oklahoma Registered Agent.coPartner link. We may earn money if you buy. |
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The scores are ours: editorial marks out of 10 built from the weighted criteria on How we rank, not ratings from customers.
2026 prices: year one, renewal and three-year total cost
| Service | Year one | Year two | Year three | Three-year total | Agent in year one |
|---|
| Mainstay Filing | $199 | $149 | $149 | $497 | Free |
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| OK Registered Agent.org | $199 | $99 | $99 | $397 | Included |
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| Oklahoma Registered Agent.co | $199 | $99 | $99 | $397 | Included |
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Service fees as published on each company's own pages, read November 12, 2026. Oklahoma's registration fee ($300) is paid on top with every service and is left out of these totals.
How the order was decided
What split first and second in Oklahoma: what one price covers, weighted at 30% in our method.
A company registering here already exists somewhere else and often needs agents in more than one state. One provider with the same price everywhere scored best on coverage, ahead of OK Registered Agent.org's lower renewal.
Read the full criteria on our How we rank page.
How foreign registration works in Oklahoma
A company formed in another state 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 wants certificate of good standing, existence or fact, dated within 60 days.
After registering, the company files the annual certificate ($25), due anniversary of the registration date.
Before you file
- Certificate of good standing, existence or fact, issued no more than 60 days before you file.
- The company's home-state name and formation date.
- Someone to serve as your registered agent there; every service here does.
- The $300 state fee, paid with the filing.
- A date in your calendar for the annual certificate and its $25 fee.
The cost of not registering
Oklahoma courts are closed to an unregistered foreign LLC's lawsuits (18 O.S. 2048(A)). Its contracts stay valid (18 O.S. 2048(B)).
What Oklahoma founders ask
Do I need to register my out-of-state LLC in Oklahoma?
Yes, if the company transacts business there. Until it registers it cannot bring a lawsuit in the state's courts.
How much does foreign registration cost in Oklahoma?
The state fee is $300. The services we rank add $199 to prepare and file it.
Which form does the state use?
The Application for Registration (Foreign Limited Liability Company) (SOS Form 0081), filed with the Oklahoma Secretary of State, Business Filing Department.
Do I need a certificate from my home state?
Yes: certificate of good standing, existence or fact, dated within 60 days of filing.
Do I need a registered agent after registering?
Yes. Every LLC must name a registered agent with an in-state street address.
Which foreign registration service is best in Oklahoma?
Mainstay Filing ranks first on our method: it prepares and files the Oklahoma registration for $199 and names itself your registered agent, free for year one.
Sources we used
- August 2026 check of Oklahoma Secretary of State, Business Filing Department: www.sos.ok.gov/forms/Llcannualcertificate.PDF
- August 2026 check of Oklahoma Secretary of State, Business Filing Department: www.sos.ok.gov/corp/filing.aspx
- August 2026 check of Oklahoma report due date: law.justia.com/codes/oklahoma/title-18/section-18-2055-2
- August 2026 check of 18 O.S. § 2004: www.sos.ok.gov/forms/FM0074.PDF
- October 2026 check of Oklahoma formation fee: Filing fee, official source: www.sos.ok.gov/business/fees.aspx
- October 2026 check of Procedures for registering a foreign LLC: www.sos.ok.gov/forms/FM0083.PDF
- October 2026 check of 18 O.S. § 2049, transacting business: www.oscn.net/applications/oscn/deliverdocument.asp?cite=18+OS+2049
- November 2026 check of Oklahoma Statutes Title 18, foreign LLC necessity of registration: www.oklegislature.gov/OK_Statutes/CompleteTitles/os18.pdf?section=18-2
- Mainstay Filing, Oklahoma service page (read November 12, 2026)
- OK Registered Agent.org, pricing and service pages (read November 12, 2026)
- Oklahoma Registered Agent.co, pricing and service pages (read November 12, 2026)