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The Formation Desk

Rankings of registered agents, LLC formation and foreign registration services in all 50 states.

Registered agent picks · Washington

2 Best Registered Agents in Washington (2026)

The The Formation Desk call for registered agents in Washington in 2026: Mainstay Filing ($149 a year) and WA Registered Agent.org ($99 a year), in that order. Mainstay Filing takes the call: $149 a year, and it holds on renewal, with papers served on the company scanned the same business day for free.
Written by The Formation Desk editorial team
1
Best here

1. Mainstay Filing: best for every state

$149 a year, and it holds on renewal

Editorial score 9.6 out of 10

The desk picks Mainstay Filing: $149 for a single agent plan that works in every state, $149 on renewal.

Haven't formed yet? Mainstay's $199-a-year package handles the Washington filing and the annual report.

Over three years Mainstay runs $150 more than WA Registered Agent.org, and the desk thinks the wider coverage is worth it.

In the price

  • A registered office address in any state you file in
  • Any service of process scanned for free and uploaded that business day
  • Free scans for the first three government mailings a year
  • Compliance reminders

Strengths

  • First three government mailings each year, scanned free
  • Free scans of served papers on the same business day
  • Works for LLCs, corporations, LPs, LLPs and nonprofits alike
  • $149 a year and it holds on renewal

Cons

  • $50 a year more than WA Registered Agent.org for agent service alone
  • On the agent plan you send in your own annual report
Visit Mainstay FilingPartner link. We may earn money if you buy. Mainstay Filing up close
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Best yearly price

2. WA Registered Agent.org: best for the lowest price per year on this list

$99 a year, and it holds on renewal

Editorial score 9.3 out of 10

Runner-up, WA Registered Agent.org: a Washington specialist at $99 a year, with an in-state street address as the registered office.

WA Registered Agent.org puts an in-state street address on file for the company and scans served legal papers into your account.

In the price

  • The in-state address the state asks you to file
  • You get online scans of any papers served on the company

Strengths

  • Cheaper each year than Mainstay Filing
  • $99 yearly, renewing at the same price
  • Formation includes a free first agent year

Cons

  • The annual report is your job
  • Washington only; you need another agent elsewhere
Visit WA Registered Agent.orgPartner link. We may earn money if you buy. WA Registered Agent.org up close

The desk's 2 picks in brief

Pick Service Desk score Price a year Renewal Good for Visit
1 Mainstay Filing 9.6 $149 $149/yr One agent that covers every state Visit Mainstay FilingPartner link. We may earn money if you buy.
2 WA Registered Agent.org 9.3 $99 $99/yr The lowest yearly price we rank here Visit WA Registered Agent.orgPartner link. We may earn money if you buy.

The scores out of 10 are the desk's own, drawn from the criteria on How we rank. They are not customer ratings.

What a Washington registered agent costs in 2026: year one, renewal and the three-year bill

Service Year one Year two Year three Bill over three years Price holds on renewal
Mainstay Filing $149 $149 $149 $447 Yes
WA Registered Agent.org $99 $99 $99 $297 Yes

Every price here was read off the company's own pages on November 12, 2026. Washington charges the same state fees whichever agent you name.

Behind the order

The desk's method puts 33% on spend over three years and 33% on work the price removes, and 34% across what renewal looks like, fit with the state and plain price display. For Washington, work the price removes did the deciding.

Mainstay's agent plan brings more to the table: served papers are scanned the same business day for nothing, one price in all fifty states and three government mailings a year scanned free. WA Registered Agent.org is cheaper, and it was close.

The full criteria and weights are on How we rank.

Washington registered agent rules straight from Washington Secretary of State (official)

Every LLC must name a registered agent with an in-state street address. The address has to be a physical street address in Washington. P.O. boxes and private mailboxes are not accepted. The law behind it: RCW 23.95.415.

Washington's annual report: what it costs, when it is due, who gets the notice

Washington LLCs send in the annual report every year, due last day of the entity's anniversary month. The state's fee is $70. Send it late and $25 gets added. Notices about it land with your registered agent.

Washington registered agent: reader questions

Do you need a registered agent to run a Washington LLC?

You do. Washington wants a registered agent on file for every LLC, and the agent must have a street address in the state.

What should you expect to pay a Washington registered agent?

Plan on $99 to $149 a year, and the price holds when it renews.

Could you serve as your own registered agent?

You can if the state's rules allow it. 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 does the Washington annual report have to go in?

Get it in by last day of the entity's anniversary month. The state's cut is $70. Miss the date and it costs $25 more.

Which registered agents did the desk rank here?

Mainstay Filing ($149 a year) and WA Registered Agent.org ($99 a year), best pick first.

Who is our pick for registered agent in Washington?

Mainstay Filing, since $149 a year for an agent that goes wherever the company does, plus the first three government mailings each year scanned free.

Read next

Where the numbers came from

  1. Washington Secretary of State, Corporations & Charities Division, last checked August 2026
  2. Washington Secretary of State, Corporations & Charities Division, last checked August 2026
  3. Washington yearly filing: Annual report, official source, last checked October 2026
  4. Washington report due date, last checked August 2026
  5. Washington formation fee: Filing fee, official source, last checked October 2026
  6. Washington formation fee: Filing fee, official source, last checked October 2026
  7. Washington registered agent statute, last checked October 2026
  8. Mainstay Filing: Washington service page, as of November 12, 2026
  9. WA Registered Agent.org: pricing and service pages, as of November 12, 2026