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LLC 101 Guide

Section 1 · Oklahoma

Starting an LLC in Oklahoma (2026): 7 Tasks and the 3 Best LLC Services

Our 2026 Oklahoma picks for setting up an LLC, strongest to weakest, are Mainstay Filing ($199), Oklahoma Registered Agent.co ($199) and OK Registered Agent.org ($199). By the numbers: 7 tasks, $100 to file, $25 for the annual certificate.

Prepared by the LLC 101 Guide instructors

The quick version

Formation fee
$100
Source: sos.ok.gov, read in October 2026
Annual certificate
$25 a year
Deadline: anniversary date of the filing of the Articles of Organization
State cost, years 1 to 3
$150
Without any service fee
Tasks
7
From first to last

What this unit teaches

  • What Oklahoma charges to form an LLC and who takes the filing
  • What the agent rule says
  • What you file every year after that
  • Which services we recommend and why

The Oklahoma honor roll

Five published criteria decide the order; read them on how we grade.

Top of the class

1. Mainstay Filing: best for skipping the annual certificate paperwork

Top of the class$199 a year that renews at $199

Start the list with Mainstay Filing, because a flat $199 covers formation, the registered agent and the annual certificate, and renewal costs $199.

Against Oklahoma Registered Agent.co the three-year premium is $200, outweighed by the 31% weight on assignments completed.

The annual certificate is part of the service, and the $25 state fee is passed through.

What the price covers

  • The formation filing
  • Registered agent for the whole year
  • Annual certificate filed for you on time
  • The EIN application is part of the price
  • State fee at cost

What works

  • $199 a year covers filing, agent and report
  • The EIN application is in the price
  • The renewal holds at $199

What to weigh

  • After year one it costs $100 more each year
Visit Mainstay FilingPartner link. We may earn money if you buy.

Top of the class

2. Oklahoma Registered Agent.co: best for a small first bill

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

Oklahoma Registered Agent.co is a solid second-place option: $199 gets you started and the agent costs nothing in year one; from year two it is $99.

You still handle the annual certificate every year.

What the price covers

  • Formation paperwork handled
  • A year of agent service is part of the price

What works

  • $199 above the state fee
  • The agent renews at $99
  • A free first agent year

What to weigh

  • It does not file the annual certificate for you
  • The EIN application is $99 extra
Visit Oklahoma Registered Agent.coPartner link. We may earn money if you buy.

Top of the class

3. OK Registered Agent.org: best for LLCs that stay in Oklahoma

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

OK Registered Agent.org is a solid third-place option: $199 gets you started and the agent costs nothing in year one; from year two it is $99.

You still handle the annual certificate every year.

Oklahoma Registered Agent.co and this service cost the same.

What the price covers

  • Formation paperwork handled
  • A year of agent service is part of the price

What works

  • A free first agent year
  • The agent renews at $99
  • $199 above the state fee

What to weigh

  • It does not file the annual certificate for you
  • The EIN application is $99 extra
Visit OK Registered Agent.orgPartner link. We may earn money if you buy.

The Oklahoma picks compared

#ServiceFirst yearFrom year twoThree-year total
1Mainstay Filing$199$199/yr$597Visit Mainstay FilingPartner link. We may earn money if you buy.
2Oklahoma Registered Agent.co$199$99/yr$397Visit Oklahoma Registered Agent.coPartner link. We may earn money if you buy.
3OK Registered Agent.org$199$99/yr$397Visit OK Registered Agent.orgPartner link. We may earn money if you buy.
Taken from each company's price page on November 13, 2026. The $100 state fee is left out of the figures.

The unit, task by task

  1. Task 1

    Choose the LLC's name

    Your first assignment is a name search with the Oklahoma Secretary of State, so you do not file under something a neighbor already uses.

    If the first name fails, you want another ready.

  2. Task 2

    Assign the registered agent role

    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.

    The address has to be a street address in Oklahoma, at a business office that is open during regular business hours. P.O. boxes are not accepted.

    Every service we recommend here can be your registered agent.

    Source: Source: sos.ok.gov, read in October 2026

  3. Task 3

    Self-filing versus a service

    The state charges $100 either way. Hiring help adds $199; see the ranked list for the order.

  4. Task 4

    Put together the Articles of Organization

    Here is the key filing: the Articles of Organization (Form 0073) goes to the Oklahoma Secretary of State with $100, and that is what creates the company.

    Source: Source: sos.ok.gov, read in October 2026

  5. Task 5

    Apply to the IRS for an EIN

    Wait for the state's approval, then request an EIN so the LLC can open accounts under its own name. Mainstay Filing does this step for you at no added charge.

  6. Task 6

    Put the ownership rules on paper

    Ownership and decision rules live in the operating agreement, an internal paper that is no part of the Oklahoma filing.

  7. Task 7

    Stay in good standing in Oklahoma

    Oklahoma wants the annual certificate every year, due anniversary date of the filing of the Articles of Organization, with a fee of $25.

    Source: Source: sos.ok.gov, read in August 2026

Oklahoma costs by task

EntryWho gets paidTotal
Filing to form the LLCPaid to the state$100
Annual certificatePaid to the state$25 every year
Paid helpThe provider$199 in the first year
State fees for the first three yearsPaid to the state$150
To get the three-year state number we add up the filing, the reports due in years two and three and any yearly minimum tax, and we keep service fees separate.

Why the list runs this way

What decided it was assignments the price completes, which carries 31% of the grade.

Taking over the annual certificate tipped the grade toward the bundle.

Questions students ask

What does a Oklahoma LLC cost to start?

$100, paid to the state. Service fees among our picks go from $199.

Which form creates the LLC?

The Oklahoma Secretary of State takes the Articles of Organization (Form 0073), the paper that creates the company.

Is a registered agent required?

Every LLC must name a registered agent with an in-state street address.

What does Oklahoma require each year?

Calendar note on the annual certificate: $25, filed every year, timing as the state words it: anniversary date of the filing of the Articles of Organization.

Can I form the LLC without a service?

A service is optional. Owners can send the papers in with the $100 fee as long as they appoint a registered agent.

Which LLC service should a first-time founder use?

Mainstay Filing, because one price, $199 a year, pays for the filing, the registered agent and the annual certificate, and it stays at $199 when you renew. After it come Oklahoma Registered Agent.co and OK Registered Agent.org.

Reading list and sources

  1. Want proof for what the unit says about Oklahoma Secretary of State, Business Filing Department? Go to sos.ok.gov; the copy we used dates from August 2026.
  2. Want proof for what the unit says about Oklahoma Secretary of State, Business Filing Department? Go to sos.ok.gov; the copy we used dates from August 2026.
  3. Want proof for what the unit says about Oklahoma report due date? Go to law.justia.com; the copy we used dates from August 2026.
  4. Want proof for what the unit says about 18 O.S. § 2004? Go to sos.ok.gov; the copy we used dates from August 2026.
  5. Want proof for what the unit says about Oklahoma formation fee: Filing fee, official source? Go to sos.ok.gov; the copy we used dates from October 2026.
  6. Figures from Mainstay Filing's Oklahoma service page, November 13, 2026
  7. Figures from Oklahoma Registered Agent.co's pricing page, November 13, 2026
  8. Figures from OK Registered Agent.org's pricing page, November 13, 2026