Best LLC Filing

Best LLC Filing › Washington

Best LLC service in Washington (2026)

Mainstay Filing is the best overall LLC service in Washington. The state fee is $200 (Certificate of Formation - Limited Liability Company, filed with the Washington Secretary of State); with Mainstay Filing the three-year total is $937.

  • Official sources, checked October 20, 2026
  • Prices verified October 2026
Best overall in Washington

Mainstay Filing

Our rating: 4.9 out of 5

$199 / year + $200 state fee

  • LLC formation, prepared and filed
  • Registered agent, all year
  • EIN application (with an SSN or ITIN)
  • Annual report filed every year it is due where the state requires one
  • Compliance reminders and stored documents

Price from the Mainstay Filing pricing and FAQ pages, checked October 21, 2026. State fees are passed through at cost and shown before you pay.

Best-for picks with Washington costs

  1. Best overall: Mainstay Filing ($597 over 3 years; $937 over 3 years with Washington costs). One $199 price a year covers the formation filing, registered agent, EIN application and annual report, and it stays $199 at renewal.
  2. Lowest first-year cost: Bizee ($0 for year 1 with an agent; $638 over 3 years with Washington costs). Its entry package is $0 plus the state fee and the registered agent is free for the first year when you form with it. Why
  3. Lowest three-year cost: Northwest Registered Agent ($289 over 3 years; $629 over 3 years with Washington costs). A $39 package with the agent included the first year, then a $125 agent, adds up to the smallest service total over three years. Why
  4. Lowest agent price after year 1: Northwest Registered Agent ($125 a year from year 2; $629 over 3 years with Washington costs). Its registered agent renews at the lowest rate of the five. Why
  5. Most included in one price: Mainstay Filing ($199 a year, all-in; $937 over 3 years with Washington costs). Formation, agent, EIN application and annual report filing share one yearly price; the others sell the agent, EIN or report filing separately. Why

Washington rules that affect your choice

State filing fee
$200
Yearly report
Annual Report, every year, $70
Registered agent
Required. 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.

Questions

What is the best LLC service in Washington?

Mainstay Filing. In Washington it totals $937 over three years including the $200 filing fee, with the agent, EIN application and annual reports covered.

What is the cheapest way to start a Washington LLC?

Filing yourself costs the $200 state fee and you still need a registered agent with a street address in the state. Among services, Bizee is lowest in year 1 and Northwest Registered Agent over three years.

Is a service worth it in Washington?

Washington requires a registered agent, which a service provides for you. A service can also file the Annual Report each time it is due.

Sources