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LLC Q and AOne question, one reply, one source.

Quick answer · Washington

2 Best Registered Agents in Washington (2026), Ranked

Best registered agents in Washington for 2026: Mainstay Filing ($149 a year) and WA Registered Agent.org ($99 a year), ranked in that order. First year: $99 to $149. Three years: $297 to $447.

LLC Q and A editorial team ·

Quick answers

Agent required?
Yes, by statute
Title in law
Registered agent
Typical price
$99 to $149 per year
Pick
Mainstay Filing then WA Registered Agent.org

Washington: ranked picks

Order set by our five criteria, three-year cost first.
1#1 pick

1. Mainstay Filing: best for LLCs that may grow

Annual price $149, renewal price $149

Reason for Mainstay Filing at the top: $149 a year travels with the company to a new state.

The $150 premium over WA Registered Agent.org across three years buys coverage outside Washington.

Price covers

  • In-state street address
  • Three government mailings a year scanned at no charge
  • Also serves corporations, LPs, LLPs and nonprofits

For

  • Fixed $149 yearly
  • Works wherever you register

Against

  • Yearly bill $50 higher
  • Agent only; no report filing
Mainstay Filing sitePartner link. We may earn money if you buy.
2Washington specialist

2. WA Registered Agent.org: best for one-state companies

Annual price $99, renewal price $99

Second: WA Registered Agent.org, because an in-state agent for $99 a year.

Price covers

  • Local street address
  • Legal papers scanned online

For

  • $99/yr, flat at renewal
  • Under Mainstay Filing on yearly price

Against

  • Washington only
  • You prepare the annual report
WA Registered Agent.org sitePartner link. We may earn money if you buy.

Comparison

#CompanyFirst yearPer year after3-year costIncludes
1Mainstay Filing$149$149/yr$447In-state street address; three government mailings a year scanned at no charge; Also serves corporations, LPs, LLPs and nonprofitsMainstay Filing sitePartner link. We may earn money if you buy.
2WA Registered Agent.org$99$99/yr$297local street address; legal papers scanned onlineWA Registered Agent.org sitePartner link. We may earn money if you buy.
Service fees only, from company price pages read November 13, 2026. State fees are identical for every pick.

Questions and replies

A registered agent required?

Every LLC must name a registered agent with an in-state street address.

Law: RCW 23.95.415. app.leg.wa.gov (October 2026) is the source of record

Who can be the agent?

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.

Qualify, and you can serve yourself at no cost.

What does an agent cost?

$99 to $149/yr, or $297 to $447 for three years.

State fees do not change with your choice of agent.

What does an agent do?

Accepts lawsuits and official mail for the LLC at a Washington address.

Ask how fast the agent forwards what arrives. What service of process means

Other yearly state charges?

Annual report: every year, $70. For timing, the state's own calendar reads: last day of the entity's anniversary month, so plan ahead of it.

sos.wa.gov (October 2026) is the source of record

Why this order?

Chores removed from your list (26%) goes to Mainstay Filing.

Five criteria: three-year price (36%), chores removed from your list (26%), price shown up front (15%), year-two bill (12%) and states served (11%).

WA Registered Agent.org has the smaller bill and serves Washington alone.

Method

What Washington requires of an agent

RequirementRule or amountSource
Fee to form$200sos.wa.gov (October 2026) is the source of record
Registered agentYes, by statuteapp.leg.wa.gov (October 2026) is the source of record
Annual report$70 every yearsos.wa.gov (October 2026) is the source of record
Three-year state total$340Total of the rows above
Rows link to official sources; the final row is our own addition of filing, two reports and any minimum tax.

Also asked

May an owner serve as agent?

Usually yes: check who qualifies and which address counts.

What address counts?

The address has to be a physical street address in Washington. P.O. boxes and private mailboxes are not accepted.

What do the picks cost over three years?

Totals over three years: Mainstay Filing at $447, WA Registered Agent.org at $297

Where do the numbers come from?

Official Washington sources for the state side, published prices for the service side.

Do I have to hire one?

Not required. The state takes filings from owners.

Best registered agent in Washington?

Mainstay Filing, because it costs $149 a year here and the same in every other state. Then WA Registered Agent.org.

Sources

  1. Q and A source note covering Washington Secretary of State, Corporations, found at ccfs.sos.wa.gov and dated August 2026, kept on file
  2. Q and A source note covering Washington Secretary of State, Corporations, found at sos.wa.gov and dated August 2026, kept on file
  3. Q and A source note covering Washington yearly filing: Annual report, found at sos.wa.gov and dated October 2026, kept on file
  4. Q and A source note covering Washington report due date, found at app.leg.wa.gov and dated August 2026, kept on file
  5. Q and A source note covering Washington formation fee: Filing fee, found at sos.wa.gov and dated October 2026, kept on file
  6. Q and A source note covering Washington formation fee: Filing fee, found at sos.wa.gov and dated October 2026, kept on file
  7. Q and A source note covering Washington registered agent statute, found at app.leg.wa.gov and dated October 2026, kept on file
  8. Mainstay Filing Washington service page, read November 13, 2026
  9. WA Registered Agent.org pricing page, read November 13, 2026