2 Best LLC Services in Washington (2026): Your Questions Answered
Ask about WA Registered Agent.org ($199) and Mainstay Filing ($199), in that order, when you need LLC formation services in Washington in 2026. The costs split two ways: $200 to the state for the filing and $397 to $597 to a service across three years.
Answered by the Ask About LLC editorial team ·
The short answers
What does the state charge?
$200, one time
Every year after
$70 each year
Registered agent
Yes, name one
Who to ask
WA Registered Agent.org then Mainstay Filing
Who should you ask in Washington?
The order follows our five questions: three-year cost first, then how much the price covers.
1Ask this one first
1. WA Registered Agent.org: best for a one-state LLC
Forming costs $199, then $99 each year after
Why WA Registered Agent.org at the top? $199 gets the LLC formed, and the agent renews each year at $99.
Yes, it costs less than Mainstay Filing over three years, and cost is the question we weigh most.
Prices as of November 13, 2026. The state's own fees are in the checklist below.
What owners want to know
How much should I budget to form an LLC here?
$200 goes to the state. Hiring a service in year one adds $199.
Over three years the state collects $340, filing fee included. sos.wa.gov, read in October 2026 for this answer
Which form do I file, and where does it go?
The paper that starts the company is the Certificate of Formation - Limited Liability Company, and it is submitted to the Washington Secretary of State.
The law behind it: RCW 25.15.071. sos.wa.gov, read in October 2026 for this answer
Do I have to name a registered agent?
Every LLC must name a registered agent with an in-state street address.
A commercial registered agent listed with the Secretary of State, a noncommercial agent (any person or business with a Washington address), or the holder of a named position in the company. The agent consents in advance.
How was the bottom line figured? Add the filing fee, the next two reports and the minimum tax if the state has one. Anything with no fixed price, a newspaper notice for instance, is described above and kept out of the sum.
Questions people also ask
Is the EIN application included?
Only Mainstay Filing covers it at no added cost. At the others, WA Registered Agent.org bills $99.
What if I file the report late?
Expect a $25 late fee.
How do the three-year totals compare?
For three years you would pay $397 at WA Registered Agent.org, $597 at Mainstay Filing for the services alone.
Are the fees official?
Each state fee links to its official page, and each service price is read from the company's own site.
Does the law require a service?
No. What the law asks for is a filing, and it does not say who has to send it.
What is the best LLC service for Washington?
WA Registered Agent.org, because it opens at $199 with the first agent year included and renews at $99. After that, Mainstay Filing.
Where did we look this up?
Ask-about note for Washington Secretary of State, Corporations: the state publishes it at ccfs.sos.wa.gov, confirmed August 2026, so you can look it up yourself
Ask-about note for Washington Secretary of State, Corporations: the state publishes it at sos.wa.gov, confirmed August 2026, so you can look it up yourself
Ask-about note for Washington yearly filing: Annual report: the state publishes it at sos.wa.gov, confirmed October 2026, so you can look it up yourself
Ask-about note for Washington report due date: the state publishes it at app.leg.wa.gov, confirmed August 2026, so you can look it up yourself
Ask-about note for Washington formation fee: Filing fee: the state publishes it at sos.wa.gov, confirmed October 2026, so you can look it up yourself
Ask-about note for Washington formation fee: Filing fee: the state publishes it at sos.wa.gov, confirmed October 2026, so you can look it up yourself
Ask-about note for Washington registered agent statute: the state publishes it at app.leg.wa.gov, confirmed October 2026, so you can look it up yourself
WA Registered Agent.org pricing page, read November 13, 2026
Mainstay Filing Washington service page, read November 13, 2026