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Filing Verdict

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

Foreign registration verdict · Washington

2 Best Foreign Registration Services in Washington (2026)

Filing Verdict's 2026 verdict on foreign registration services in Washington: Mainstay Filing ($199) and WA Registered Agent.org ($199), in that order. Mainstay Filing takes first place: $199 plus the state's own fee, with the registered agent free for the first year and one price in every state.
The Filing Verdict editorial team
Our top pick in Washington
Spot 1

1. Mainstay Filing: best for companies working in several states

$199 on top of the state fee; the agent is $149 a year from year two

9.5Editorial score
out of 10

Mainstay Filing wins here: it prepares the Washington registration for $199 and serves as your registered agent, free in year one, then $149 a year.

The agent renews at $149 a year after the free first year, in this state or any other.

The three-year bill is $100 higher than WA Registered Agent.org's, and the wider coverage is worth that to us.

What you get

  • Foreign registration paperwork prepared and filed
  • A registered agent at no charge for the first year
  • Any legal papers served on the company are scanned the same business day for free

What we like

  • Same-business-day scans of served papers, free
  • One price in all fifty states
  • Service fee of $199, plus the state's fee
  • Registered agent service free in year one

Cons

  • After year one its agent runs $149 a year, $50 above WA Registered Agent.org
Visit Mainstay FilingPartner link. We may earn money if you buy. Our full Mainstay Filing verdict
Best local option
Spot 2

2. WA Registered Agent.org: best for companies adding only Washington

$199 service fee, state fee added; $99 a year from year two

9.2Editorial score
out of 10

Second place goes to WA Registered Agent.org: the Washington registration for $199 with the first agent year included, then $99 a year.

The plan gives the company an in-state street address as its registered office, and papers served on the company are scanned to your online account.

What you get

  • Washington registration filed for you
  • A year of registered agent service up front

What we like

  • Service fee $199, state fee extra
  • Year-two agent cost of $99
  • Year-one registered agent service included

Cons

  • Covers Washington only; your home state needs its own agent
  • The EIN application is billed separately ($99)
Visit WA Registered Agent.orgPartner link. We may earn money if you buy. Our full WA Registered Agent.org verdict

The 2 verdicts at a glance

No.ServiceVerdict scoreService feeYear twoBest forVisit
1Mainstay Filing9.5$199$149/yrCompanies registered in several states Visit Mainstay FilingPartner link. We may earn money if you buy.
2WA Registered Agent.org9.2$199$99/yrThe lowest agent renewal here Visit WA Registered Agent.orgPartner link. We may earn money if you buy.
Each mark out of 10 is our own judgment from the weighted criteria on How we rank. None of it comes from customer ratings.

Washington foreign registration service prices for 2026: year one, renewals and three years

ServiceYear 1Year 2Year 3Total, 3 yearsAgent covered in year one
Mainstay Filing$199$149$149$497Free
WA Registered Agent.org$199$99$99$397Included
Prices were read from each company's own pages on November 12, 2026. Washington's $180 registration fee goes on top of every row and is not counted in these totals.

What settled the order

What settled Washington: paperwork the price handles. The method puts 35% on total over three years, 35% on paperwork the price handles and spreads 30% across renewal behavior, match to the state and up-front pricing.

Registering in a second state involves two states, so one provider with one price in both scored best on coverage, ahead of WA Registered Agent.org.

The full list of criteria and weights is on How we rank.

Washington foreign LLC registration: the fee, the form and the filing office

The company registers with the Washington Secretary of State, Corporations & Charities Division by filing the Foreign Registration Statement. The state fee is $180. Washington also asks for certificate of existence (good standing) or similar document, issued within 60 days of filing.

Afterwards the company files the annual report ($70), due last day of your registration month.

Before you file: a checklist

  • Certificate of existence (good standing) or similar document, issued within 60 days before you file.
  • The exact legal name from the home state, and the date the company was formed there.
  • A registered agent with a street address in the state; each service on this page can act in that role.
  • The $180 state fee, paid with the filing.
  • A calendar entry for the annual report and its $70 fee.

Washington foreign registration service: questions answered

Does Washington require an out-of-state LLC to register?

Yes, once it transacts business there.

What does foreign registration cost in Washington?

The state fee is $180, and the service fee is $199.

Does Washington want a certificate from my home state?

Yes. It asks for certificate of existence (good standing) or similar document, issued within 60 days of filing.

Is a registered agent required once I have registered?

Yes. The company still needs a registered agent here, with a street address in the state.

Which foreign registration services are ranked on this page?

Mainstay Filing ($199) and WA Registered Agent.org ($199), from first place to last.

Which foreign registration service is the best pick in Washington?

Mainstay Filing, because $199 on top of the state fee, the same in any state, with the first year of registered agent service included.

Read next

Sources and dates

  1. Washington Secretary of State, Corporations & Charities Division, confirmed August 2026
  2. Washington Secretary of State, Corporations & Charities Division, confirmed August 2026
  3. Washington yearly filing: Annual report, official source, confirmed October 2026
  4. Washington report due date, confirmed August 2026
  5. Washington formation fee: Filing fee, official source, confirmed October 2026
  6. Washington formation fee: Filing fee, official source, confirmed October 2026
  7. Washington registered agent statute, confirmed October 2026
  8. Washington SOS, register a foreign LLC online, confirmed October 2026
  9. Washington SOS, fee schedules and priority services, confirmed October 2026
  10. RCW 23.95.520, activities that are not doing business, confirmed October 2026
  11. RCW 23.95.505, consequences of not registering, confirmed October 2026
  12. RCW 23.95.510, foreign registration statement, confirmed October 2026
  13. Washington SOS, registered agents, confirmed October 2026
  14. Checked November 12, 2026: Mainstay Filing, Washington service page
  15. Checked November 12, 2026: WA Registered Agent.org, pricing and service pages