Plain talk · Oklahoma

3 Best LLC Services in Oklahoma (2026), Plainly

In Oklahoma for 2026, we like Mainstay Filing ($199), OK Registered Agent.org ($199) and Oklahoma Registered Agent.co ($199), ranked from first to last. Everyone pays the state the same $100, and the service fees come to $397 to $597 for three years.

From the LLC Plainly editorial teamUpdated on November 13, 2026

Short answer

Fee to file: $100, once
After that: $25 a year
Registered agent: Yes, it's required
Who to use: Mainstay Filing, OK Registered Agent.org then Oklahoma Registered Agent.co

Who we like in Oklahoma

Wondering about the order? How we pick explains it.

Our top pick

1. Mainstay Filing: best for not having to think about the annual certificate

$199 yearly

We'd use Mainstay Filing in Oklahoma. You pay $199 a year and the formation, the registered agent and the annual certificate get done.

Across three years it costs $200 more than OK Registered Agent.org, and you hand off more of the filing in return.

You never file the annual certificate yourself. Oklahoma still charges $25, and that's passed through at cost.

Your money buys

LLC formation handled for you
Registered agent for the full year
Annual certificate handled when it comes due
We apply for your EIN
State fees passed on at cost

The good

The EIN application is part of the deal
The renewal is $199
$199 each year buys everything on this list

Trade-offs

Its renewal is $100 above OK Registered Agent.org

Local to Oklahoma

2. OK Registered Agent.org: best for an LLC that stays in one state

Pay $199 now and $99 each year later, state fee extra

OK Registered Agent.org comes next since forming your LLC costs $199 and the agent is covered in year one, then $99 a year.

Expect to file the annual certificate on your own.

Your money buys

LLC filing handled
A year of agent service to start

The good

Starts at $199 over the state fee
$99 a year from year two
Agent covered in year one

Trade-offs

You'll have to remember the annual certificate on your own
Getting an EIN costs $99 more

Local to Oklahoma

3. Oklahoma Registered Agent.co: best for a low agent renewal

Pay $199 now and $99 each year later, state fee extra

Oklahoma Registered Agent.co comes next since forming your LLC costs $199 and the agent is covered in year one, then $99 a year.

Expect to file the annual certificate on your own.

Its prices match OK Registered Agent.org exactly, so either one works.

Your money buys

LLC filing handled
A year of agent service to start

The good

$99 a year from year two
Agent covered in year one
Starts at $199 over the state fee

Trade-offs

You'll have to remember the annual certificate on your own
Getting an EIN costs $99 more

At a glance

#	Company	Year one	Renewal	Over three years	In the price
1	Mainstay Filing	$199	$199/yr	$597	LLC formation handled for you; registered agent for the full year; annual certificate handled when it comes due	Check out Mainstay FilingPartner link. We may earn money if you buy.
2	OK Registered Agent.org	$199	$99/yr	$397	LLC filing handled; A year of agent service to start	Check out OK Registered Agent.orgPartner link. We may earn money if you buy.
3	Oklahoma Registered Agent.co	$199	$99/yr	$397	LLC filing handled; A year of agent service to start	Check out Oklahoma Registered Agent.coPartner link. We may earn money if you buy.

These are service fees only, from each company's prices on November 13, 2026. The state's fees are the same whoever you pick.

The questions, one by one

How much do I need to get an LLC going?

$100 goes to the state, and a service adds $199 in year one if you use one.

By year three the state has taken $150 in total. official: sos.ok.gov, October 2026

Where do I send the LLC paperwork?

The Oklahoma Secretary of State receives the Articles of Organization (Form 0073), and approval is what forms the company.

official: sos.ok.gov, October 2026

Does my LLC need a registered agent here?

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.

official: sos.ok.gov, October 2026

What does it cost to keep an LLC going?

Keep the annual certificate current. You file it every year for $25. The state lists the due date as anniversary date of the filing of the Articles of Organization, so don't let it slide.

official: sos.ok.gov, August 2026

Could I file this on my own?

Sure. Skip the service and you'd pay the state $150 over three years.

Services bill $397 to $597 over three years for taking this off your hands.

What put number one on top?

Mainstay Filing is strongest on work taken off your hands, which counts for 31% of our score.

33% of the score is cost across three years, 31% is work taken off your hands, and three smaller checks split ties.

We'd rather you never touch the annual certificate than save a few dollars.

How we pick

Oklahoma requirements, with sources

Item	Amount or rule	Check it
The state's formation fee	$100	official: sos.ok.gov, October 2026
Registered agent	Yes, it's required	official: sos.ok.gov, October 2026
Annual certificate	$25 every year	official: sos.ok.gov, August 2026
Three-year state total	$150	Rows above, totaled

We add the formation filing, two later reports and any minimum tax to reach the three-year number. Costs that have no fixed price don't go in.

FAQ

Who gets my EIN?

It's included at Mainstay Filing, while OK Registered Agent.org wants $99 and Oklahoma Registered Agent.co wants $99.

How do the three-year costs stack up?

Mainstay Filing: $597 / OK Registered Agent.org: $397 / Oklahoma Registered Agent.co: $397, and state fees are separate.

What are the sources?

What the state charges comes from official Oklahoma publications; what services charge comes from what they publish.

Do I need to hire a service?

You can skip it. The state's fee is the same whichever way you file.

Do I pay the state every year?

Keep the annual certificate current. You file it every year for $25. The state lists the due date as anniversary date of the filing of the Articles of Organization, so don't let it slide.

Who would you go with in Oklahoma?

Start with Mainstay Filing, followed by OK Registered Agent.org and Oklahoma Registered Agent.co.

Check our work

August 2026: confirmed Oklahoma Secretary of State, Business using sos.ok.gov
August 2026: confirmed Oklahoma Secretary of State, Business using sos.ok.gov
August 2026: confirmed Oklahoma report due date using law.justia.com
August 2026: confirmed 18 O.S. § 2004 using sos.ok.gov
October 2026: confirmed Oklahoma formation fee: Filing fee using sos.ok.gov
Oklahoma service page from Mainstay Filing, November 13, 2026
pricing page from OK Registered Agent.org, November 13, 2026
pricing page from Oklahoma Registered Agent.co, November 13, 2026