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Biz Formation Report

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

Registered agents report · Washington

2 Best Registered Agents in Washington (2026)

By the Biz Formation Report editorial team

Biz Formation Report ranks registered agents in Washington for 2026 as Mainstay Filing ($149 a year) and WA Registered Agent.org ($99 a year), in that order. Mainstay Filing earns the top grade: a $149 yearly plan that works in every state, renewing at $149.

No.1

Best here

1. Mainstay Filing: best for all fifty states

Score9.6out of 10
$149 a year, unchanged at renewal

Top grade, Mainstay Filing: $149 per year for an agent that goes wherever the company goes, plus free scans of the first three government mailings each year.

A company still to be formed can use Mainstay's $199-a-year package, which files the Washington paperwork and the annual report.

Over three years Mainstay costs $150 more than WA Registered Agent.org; our grading treats the broader coverage as worth that.

What you get

  • A registered office address in any state you need
  • Legal papers served on the company scanned free, the same business day
  • The first three government mailings of the year scanned at no charge
  • Compliance reminders

Good

  • Three government mailings a year scanned at no cost
  • $149 a year, no renewal increase
  • Open to LLCs, corporations, LPs, LLPs and nonprofits
  • Served papers scanned within the same business day, free

Weak spots

  • The agent alone costs $50 a year more than WA Registered Agent.org
  • Annual report filing requires the formation package
Visit Mainstay FilingPartner link. We may earn money if you buy.
Read the Mainstay Filing review
No.2

Best for a Washington-only company

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

Score9.4out of 10
$99 a year, unchanged at renewal

Second grade, WA Registered Agent.org: $99 a year with no renewal increase, the lowest yearly price on this list.

Served legal papers go to the in-state address WA Registered Agent.org provides, and you receive scans of them online.

What you get

  • A physical in-state address listed for the company
  • Every legal paper served is scanned for you to read online

Good

  • Yearly price under Mainstay Filing's
  • $99 annually with no renewal increase
  • Formation comes with a free first agent year

Weak spots

  • The annual report filing is left to you
  • Serves Washington only; other states need a separate agent
Visit WA Registered Agent.orgPartner link. We may earn money if you buy.
Read the WA Registered Agent.org review

Summary of the 2 grades

RankProviderGradePrice per yearRenewal priceBest fitSite
1Mainstay Filing9.6$149$149/yrOne agent across fifty statesVisit Mainstay FilingPartner link. We may earn money if you buy.
2WA Registered Agent.org9.4$99$99/yrThe lowest yearly price we rank hereVisit WA Registered Agent.orgPartner link. We may earn money if you buy.

Grades out of 10 are Biz Formation Report's own editorial judgment, based on the criteria explained on How we rank. They are not customer ratings.

Washington registered agent prices, 2026: year one, renewal and three-year outlay

ProviderYear 1Year 2Year 3Three-year outlayRenewal at the same price
Mainstay Filing$149$149$149$447Yes
WA Registered Agent.org$99$99$99$297Yes

All prices were taken from the companies' own websites on November 12, 2026. Washington's own fees are the same whichever agent is named.

The basis for the order

The grading method assigns 32% to three-year bill and 32% to what the money buys, with renewal handling, local rules match and pricing openness taking 36%. For Washington, what the money buys decided it.

Mainstay's agent plan grades higher on coverage: served papers are scanned the same business day at no fee, the price is identical in all fifty states and three government mailings a year are scanned free. WA Registered Agent.org wins on cost, and the margin is thin.

Every criterion and weight is listed on How we rank.

Washington registered agent rules according to 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. Authority: RCW 23.95.415.

Washington's annual report: cost, deadline and your agent

The annual report is due from every Washington LLC every year, by last day of the entity's anniversary month. The state charges $70. A late filing adds $25. Related notices are mailed to your registered agent.

Washington registered agent: common questions

Does a Washington LLC have to maintain a registered agent?

Yes. The state expects every LLC to keep a registered agent on record, and Washington requires that agent to have a street address inside its borders.

How much do Washington registered agents charge per year?

Annual charges run from $99 to $149, and prices are unchanged at renewal.

Can the owner be the company's own registered agent?

Yes, provided you meet the state's requirements. 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.

What is the filing deadline for the Washington annual report?

The deadline: last day of the entity's anniversary month. The state charges $70. Miss it and $25 is added.

Which registered agents does this report rank?

Mainstay Filing ($149 a year) and WA Registered Agent.org ($99 a year), in descending order of grade.

What is the best-value registered agent in Washington?

Mainstay Filing: $149 a year, flat at renewal, with papers served on the company scanned the same business day at no charge.

Read next

Source notes

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