How to Serve Court Papers in Washington State

To serve court papers in Washington state, a non-party adult must hand-deliver the summons and complaint together to the person being sued, then sign a sworn proof of service that gets filed with the court. The rules live in Superior Court Civil Rule 4 and RCW Chapter 4.28, and Washington gives you 90 days to get service done once the case is filed. Miss a step and the case can be dismissed or a later judgment thrown out, so the details below are worth reading in order.

Who Can Deliver the Papers

You cannot serve your own lawsuit. Under CR 4(c), service must be performed by the sheriff or deputy sheriff of the county where service happens, or by any person over 18 who is competent to testify as a witness and is not a party to the case.¹ A spouse, adult child, coworker, or friend qualifies. You, as the plaintiff, do not.

Three practical options exist. The county sheriff’s office serves papers for a fee and carries built-in credibility with the court. A professional process server is the usual pick when time is short or the defendant is hard to track down. The budget route is asking a qualified adult you know to hand-deliver. The trade-off with an inexperienced server is procedural error: wrong person, wrong location, or a botched proof of service, and you may have to start over.

What Must Be Delivered

The summons and the complaint go together, in one delivery.¹ The summons is the court’s formal notice that the defendant has been sued and warns them that failing to respond within 20 days after service (not counting the day of service) can lead to a default judgment.² The complaint states the facts and what the plaintiff wants.

One trap catches plaintiffs who serve before filing. Under the standard Washington summons in CR 4, the defendant can send a written demand that the plaintiff file the case with the court. Once that demand is made, the plaintiff has 14 days to file or the service becomes void.¹

Personal Delivery to an Individual

The preferred method is personal service: physically handing the summons and complaint to the person being sued. Under RCW 4.28.080, delivery counts as personal service wherever the defendant is found, whether at home, at work, or somewhere in between.³ This method eliminates any doubt that the defendant received the papers.

The defendant does not have to take them willingly. If the server identifies the correct person, states what the documents are, and leaves them within reach, most courts treat that as valid service even if the defendant refuses to accept the papers or lets them fall to the ground.

When You Can’t Hand Papers Directly to the Defendant

If reasonable attempts at personal delivery fail, Washington allows substituted service: leaving the documents at the defendant’s usual residence with a co-resident of suitable age and discretion, then mailing a copy to the same address. The standard state proof of service form specifically lists this as an approved method.⁴ “Suitable age and discretion” means someone old enough and responsible enough to understand that the papers need to be passed along. A ten-year-old at the door will not do. In practice, use an adult or a mature teenager who actually lives in the household, not a visitor or neighbor.

If the defendant cannot be located at all, service by publication becomes available as a last resort. Under RCW 4.28.100, the plaintiff files an affidavit stating either that the defendant is not a Washington resident or cannot be found in the state, and that a copy was mailed to the last known address (or that the address is unknown).⁵ Publication is only allowed in specific situations, including when the defendant owns property in Washington, has left the state to avoid creditors or service, or when the case involves Washington real property.

CR 4 also offers a court-ordered mail alternative to publication. If the plaintiff shows by affidavit that mailing is just as likely as newspaper notice to reach the defendant, the court can authorize service by mail. That requires two copies sent to the last known address, one by regular first-class mail and one by a form of mail requiring a signed receipt. The defendant then has 90 days from mailing to respond, not the usual 20.¹

Serving Businesses and Government Offices

Businesses and government entities are not served like individuals. Handing papers to a receptionist almost never counts. Match the entity type to the correct recipient:

Corporations and LLCs: serve the registered agent listed with the Washington Secretary of State, as provided in RCW 23.95.450.³
Counties: serve the county auditor or deputy auditor during normal office hours. Charter counties may name a designated agent instead.³
Cities and towns: serve the mayor, city manager, or during normal office hours the designated agent or city clerk.³
The State of Washington: serve the attorney general, or leave the documents with an assistant attorney general at the AG’s office.⁶
School and fire districts: serve the superintendent or commissioner, or leave documents with an assistant superintendent, deputy commissioner, or business manager during business hours.³

Minors, Guardians, and Defendants Outside Washington

To sue someone under 14, you must serve both the child personally and the parent, guardian, or other person having care and control of the child. Anyone who has a court-appointed guardian is served through the guardian.³ Skipping the parent or guardian creates a defect even if the minor was handed the papers.

For defendants outside the state, Washington’s long-arm statute (RCW 4.28.185) reaches nonresidents when the case arises from certain in-state activities, including doing business in Washington, committing a wrongful act here, or owning property in the state.⁷ For service in a foreign country, CR 4(i) allows several methods, including mail requiring a signed receipt addressed to the defendant, with proof consisting of the signed receipt or other evidence of delivery satisfactory to the court.¹

The 90-Day Deadline

This is the rule that ruins cases. Under RCW 4.16.170, if you file the complaint first, you have 90 days from the filing date to complete personal service or to begin service by publication. If you serve first and file later, you have 90 days from the date of service to file the summons and complaint with the court. Miss either deadline and the lawsuit is treated as though it was never filed for statute-of-limitations purposes.⁸

If the limitations period runs out during the gap between a failed attempt and a refiling, the right to sue is gone. When the deadline is tight, pay a professional process server rather than hoping a friend gets around to it.

Filing the Proof of Service

After delivery, the server creates a written record. If the sheriff served, the sheriff files a return endorsed on or attached to the summons. If anyone else served, that person prepares a sworn affidavit of service endorsed on or attached to the summons. For publication, the newspaper’s publisher or manager provides an affidavit with a printed copy of the published summons.¹

Washington’s standard proof of service form asks for:

The server’s name, confirmation they are over 18, and that they are not a party to the case.
The method used, whether direct delivery to the defendant or delivery to a co-resident of suitable age and discretion.
The date, time, and address of service.
A list of every document delivered.

The server signs under penalty of perjury under Washington law. If service happened outside Washington, the signature must be notarized or sworn before a court clerk.⁴ Without a properly completed proof, the court has no evidence the defendant was notified, and the case stalls.

One More Step Before a Default Judgment

If the defendant never responds and you ask the court for a default judgment, federal law adds a requirement. Under the Servicemembers Civil Relief Act (50 U.S.C. § 3931), the plaintiff files an affidavit stating whether the defendant is in active military service, with facts supporting the statement, or stating that military status cannot be determined.⁹ A written declaration signed under penalty of perjury satisfies this.

If the defendant is on active duty, the court cannot enter a default until it appoints an attorney to represent the absent servicemember. If military status cannot be determined, the court may require a bond. Active duty status can be checked through the Department of Defense Manpower Data Center’s SCRA website. A default judgment entered without the affidavit is vulnerable to being reopened.

If Service Was Done Wrong

Defective service is not a technicality. Under CR 12(b), a defendant can move to dismiss for insufficiency of process (problems with the documents) or insufficiency of service of process (problems with delivery).² If the court agrees, you have to re-serve while the 90-day and limitations clocks keep running. A default judgment obtained after defective service can be set aside, because the court never had personal jurisdiction. The plaintiff bears the burden of proving service was proper.

There is one narrow relief for plaintiffs: a defendant waives the defense by not raising it in the first responsive pleading or pre-answer motion. Once the defendant files an answer without challenging service, that objection is gone.²

1
Washington Courts. Washington Court Rules – CR 4 Process
2
Washington Courts. Washington Court Rules CR 12 – Defenses and Objections
3
Washington State Legislature. Washington Code RCW 4.28.080 – Summons, How Served
4
Washington Courts. Washington Courts Proof of Personal Service Form
5
Washington State Legislature. Washington Code RCW 4.28.100 – Service by Publication
6
Washington State Legislature. Washington Code RCW 4.92.020 – Service of Summons and Complaint
7
Washington State Legislature. Washington Code RCW 4.28.185 – Personal Jurisdiction
8
Washington State Legislature. Washington Code RCW 4.16.170 – Action Deemed Commenced, When
9
Office of the Law Revision Counsel. 50 USC 3931 – Default Judgments