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The Formation Desk

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

LLC service picks · Washington

2 Best LLC Services in Washington (2026)

The The Formation Desk call for LLC services in Washington in 2026: WA Registered Agent.org ($199) and Mainstay Filing ($199), in that order. WA Registered Agent.org takes the call: Washington formation for $199 on top of the state's fee, year-one agent included, then $99 a year to keep the agent.
Written by The Formation Desk editorial team
1
Number one here

1. WA Registered Agent.org: best for a Washington LLC with no plans to expand

Form for $199; the agent is $99 a year after that, plus the state fee

Editorial score 9.1 out of 10

The desk picks WA Registered Agent.org: $199 to form, state fee extra, then $99 a year for the agent.

You get an in-state street address as the registered office, and papers served there are scanned into your account.

It leaves the annual report out of its prices, so you send that filing to Washington yourself every year.

Three years of service run cheaper here than at Mainstay Filing, and cost carries big weight.

In the price

  • Formation prepared and filed
  • A first year of registered agent service

Strengths

  • Year-two agent price: $99
  • Registered agent service for year one is covered
  • A $199 formation price, state fee on top

Cons

  • No annual report filing included
  • EIN application will cost you $99 more
Visit WA Registered Agent.orgPartner link. We may earn money if you buy. WA Registered Agent.org up close
2
Best bundle

2. Mainstay Filing: best for formation, agent and annual report in a single price

$199 a year plus the state fee, $399 due at checkout

Editorial score 8.8 out of 10

Runner-up, Mainstay Filing: the formation, the registered agent and the annual report all ride on one $199 yearly price, renewing at $199.

Mainstay files the annual report for you when you renew. Washington wants $70 every year, by last day of the entity's anniversary month, and a late filing tacks on $25; Mainstay hands the state's fee through at cost.

WA Registered Agent.org undercuts Mainstay Filing by $200 over three years, and that is why Mainstay sits lower on cost.

In the price

  • The formation document, filed on your behalf
  • Your registered agent, all year long
  • Annual report, filed by Mainstay
  • EIN application handled

Strengths

  • One $199 yearly price that takes in the annual report
  • $199 on renewal, nothing extra
  • EIN application comes with the package
  • Washington's fee passes through at cost

Cons

  • Its agent renews at $100 a year more than WA Registered Agent.org
Visit Mainstay FilingPartner link. We may earn money if you buy. Mainstay Filing up close

The desk's 2 picks in brief

Pick Service Desk score Service fee Year two Good for Visit
1 WA Registered Agent.org 9.1 $199 $99/yr A Washington-only LLC on a shoestring Visit WA Registered Agent.orgPartner link. We may earn money if you buy.
2 Mainstay Filing 8.8 $199 $199/yr Formation, agent and annual report in a single price Visit Mainstay FilingPartner link. We may earn money if you buy.

The Formation Desk sets every score out of 10 itself from the weighted criteria on How we rank; customers do not rate anything.

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

Service Year one Year two Year three Bill over three years Annual report filed on your behalf
WA Registered Agent.org $199 $99 $99 $397 No
Mainstay Filing $199 $199 $199 $597 Yes

Every price here was read off the company's own pages on November 12, 2026. Washington's $200 filing fee comes on top of every row and is left out of these totals.

Behind the order

The Formation Desk counts spend over three years and work the price removes for 33% each; what renewal looks like, fit with the state and plain price display make up the other 34%. What tipped Washington: spend over three years.

WA Registered Agent.org comes to $397 over three years, $200 less than Mainstay Filing. Mainstay would file the annual report too, but an owner can do that alone for just the state fee, so the lower price won.

The full criteria and weights are on How we rank.

Washington LLC filing fee and form: the official numbers

It takes $200 to file the Certificate of Formation - Limited Liability Company with the Washington Secretary of State. Every service here adds that fee at cost on top of its own price.

After you form: keeping the Washington LLC in order

Send in the annual report every year, by last day of the entity's anniversary month. It costs $70. Late means $25 extra. Every LLC must name a registered agent with an in-state street address.

Washington LLC service: reader questions

What will setting up an LLC in Washington cost you?

$200 goes to the state and $199 to the service.

What do you file to create the LLC?

The Certificate of Formation - Limited Liability Company, sent to the Washington Secretary of State.

Does a Washington LLC have to line up a registered agent on day one?

Yes. Washington expects a registered agent from the start, with a street address inside the state.

What keeps coming due once a Washington LLC exists?

One filing: the annual report, every year, due last day of the entity's anniversary month, costing $70.

Does the service price take care of the EIN?

Mainstay Filing builds it into the yearly price. WA Registered Agent.org tacks on $99. The IRS never charges for an EIN.

Who is our pick for an LLC service in Washington?

WA Registered Agent.org, since $199 plus the Washington filing fee, first-year registered agent service included, then $99 a year.

More from us

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. WA Registered Agent.org: pricing and service pages, as of November 12, 2026
  9. Mainstay Filing: Washington service page, as of November 12, 2026