2 Best Registered Agents in Washington (2026): Your Questions Answered
Wondering about registered agents in Washington, for 2026 our order is Mainstay Filing ($149 a year) and WA Registered Agent.org ($99 a year). Year one runs $99 to $149, and three years add up to $297 to $447.
Answered by the Ask About LLC editorial team ·
The short answers
Is an agent required?
Yes, the law says so
What the law calls it
Registered agent
Typical agent price
$99 to $149 per year
Who to ask
Mainstay Filing then WA Registered Agent.org
Who should you ask in Washington?
The order follows our five questions: three-year cost first, then how much the price covers.
1Our first answer
1. Mainstay Filing: best for LLCs that may expand
Pay $149 the first year and $149 after
Mainstay Filing comes first: a single account at $149 a year works in whichever state the LLC registers.
Going with WA Registered Agent.org would save $150 across three years, as long as you stay in Washington.
What the price covers
An address in the state
Scans of three government letters a year, at no charge
Also handles corporations, LPs, LLPs and nonprofits
Service fees only, from each company's prices on November 13, 2026. State fees are the same whichever you pick.
What owners want to know
Does this state require a registered agent?
Every LLC must name a registered agent with an in-state street address.
Statute: RCW 23.95.415. looked up at app.leg.wa.gov in October 2026 to confirm
Who qualifies as an agent?
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.
When you fit the rule, the role can be yours for free.
How much does an agent cost?
Our picks charge $99 to $149 annually, and three years total $297 to $447.
Whichever agent you pick, the state's fees stay the same.
Why does the state want an agent?
The agent signs for lawsuits and state mail addressed to the LLC, using a street address in Washington.
Papers that arrive with nobody to sign for them can let a case go forward without your LLC. What is service of process?
What does the LLC owe the state each year?
The annual report repeats every year, at $70 each time. Due date, as the state puts it: last day of the entity's anniversary month.
looked up at sos.wa.gov in October 2026 to confirm
Why is the list in this order?
Mainstay Filing does best on chores the price takes care of, which carries 29% 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.
looked up at sos.wa.gov in October 2026 to confirm
What the state collects in three years
$340
The rows above, added up
The last row is arithmetic, not a state figure: filing fee, plus the reports due in years two and three, plus a minimum tax where one applies. Open-ended costs stay out.
Questions people also ask
Can I be my own agent?
Yes, provided you meet the state's rules on who may serve and on the address, both laid out above.
What address does an agent need?
The address has to be a physical street address in Washington. P.O. boxes and private mailboxes are not accepted.
What do the picks cost over three years?
Mainstay Filing comes to $447; WA Registered Agent.org comes to $297
Are the fees official?
State fees come from Washington'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.
Which one do you recommend in Washington?
Mainstay Filing comes first: $149 a year follows the company into any new state. Next are WA Registered Agent.org.
Where did we look this up?
Our answer on Washington Secretary of State, Corporations rests on ccfs.sos.wa.gov, a page we confirmed August 2026 and still point you to
Our answer on Washington Secretary of State, Corporations rests on sos.wa.gov, a page we confirmed August 2026 and still point you to
Our answer on Washington yearly filing: Annual report rests on sos.wa.gov, a page we confirmed October 2026 and still point you to
Our answer on Washington report due date rests on app.leg.wa.gov, a page we confirmed August 2026 and still point you to
Our answer on Washington formation fee: Filing fee rests on sos.wa.gov, a page we confirmed October 2026 and still point you to
Our answer on Washington formation fee: Filing fee rests on sos.wa.gov, a page we confirmed October 2026 and still point you to
Our answer on Washington registered agent statute rests on app.leg.wa.gov, a page we confirmed October 2026 and still point you to
Mainstay Filing Washington service page, read November 13, 2026
WA Registered Agent.org pricing page, read November 13, 2026