2 Best LLC Services in Washington (2026): The Quick Answer
In Washington for 2026, rank LLC formation services Mainstay Filing ($199) and WA Registered Agent.org ($199). Costs in brief: $200 to the state, $397 to $597 to a service across three years.
LLC Q and A editorial team ·
Quick answers
Fee to the state
$200, once
After that
$70 yearly
Registered agent
Yes, by statute
Pick
Mainstay Filing then WA Registered Agent.org
Washington: ranked picks
Prices come from each company's own page. See the method.
1#1 pick
1. Mainstay Filing: best for handing off upkeep
$199 a year, $200 to the state
Mainstay Filing ranks first since $199 a year covers three jobs: formation, the registered agent and the annual report.
Not the lowest bill: WA Registered Agent.org is $200 less over three years, with more of the paperwork left to you.
Annual report filing is included. The state's $70 is the only addition, at cost.
Prices as of November 13, 2026. State fees are in the checklist below.
Questions and replies
How much to start an LLC in this state?
$200 to the state, plus $199 if a service files in year one.
State fees across three years, filing included: $340. sos.wa.gov (October 2026) is the source of record
What starts the LLC?
Your filing is the Certificate of Formation - Limited Liability Company, and it is sent to the Washington Secretary of State.
Law: RCW 25.15.071. sos.wa.gov (October 2026) is the source of record
A registered agent required?
Every LLC must name a registered agent with an in-state street address.
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.
Three-year total = filing + report in year 2 + report in year 3 + minimum tax (if any). Fees without a fixed amount, like newspaper notices, are not summed.
Also asked
Who files the EIN application?
Free with Mainstay Filing. WA Registered Agent.org charges $99.
What if the report is late?
A late report costs $25 more.
Three-year cost of each?
Mainstay Filing totals $597 and WA Registered Agent.org totals $397, before state fees.
Where do the numbers come from?
State fees cite their official page; service prices come from the company's own site.
Do I have to hire one?
No. Owners can file directly. A service saves time and can act as agent.
Which LLC service should I use in Washington?
Mainstay Filing: $199 a year pays for formation, the registered agent and every annual report, then renews at $199. Behind it: WA Registered Agent.org.
Source list
Reference line for Washington Secretary of State, Corporations, drawn from ccfs.sos.wa.gov and confirmed August 2026, as noted by our editors
Reference line for Washington Secretary of State, Corporations, drawn from sos.wa.gov and confirmed August 2026, as noted by our editors
Reference line for Washington yearly filing: Annual report, drawn from sos.wa.gov and confirmed October 2026, as noted by our editors
Reference line for Washington report due date, drawn from app.leg.wa.gov and confirmed August 2026, as noted by our editors
Reference line for Washington formation fee: Filing fee, drawn from sos.wa.gov and confirmed October 2026, as noted by our editors
Reference line for Washington formation fee: Filing fee, drawn from sos.wa.gov and confirmed October 2026, as noted by our editors
Reference line for Washington registered agent statute, drawn from app.leg.wa.gov and confirmed October 2026, as noted by our editors
Mainstay Filing Washington service page, read November 13, 2026
WA Registered Agent.org pricing page, read November 13, 2026