To fill out California form POS-020, the person who personally handed the papers to the recipient enters the case caption and number, lists each document served by its exact title, records the recipient’s name along with the address, date, and time of delivery, provides their own identifying information, and signs the declaration at the bottom under penalty of perjury. The party who arranged service then files the signed original with the court clerk. One threshold point before you start: POS-020 is only for civil documents served after a case has been opened. The form itself warns, “Do not use this Proof of Service to show service of a Summons and Complaint.”1Judicial Council of California. Proof of Personal Service — Civil For a summons and complaint, use POS-010 instead.
Who Can Complete and Sign POS-020
Only the person who actually delivered the papers can fill out and sign POS-020. Not the attorney, not the plaintiff, not the defendant. The declaration works because the signer has firsthand knowledge of the delivery.
That server has to meet two requirements. They must be at least 18 years old, and they cannot be a party to the case. California Code of Civil Procedure Section 1011 governs service of post-summons civil papers and requires that any person left with documents at a party’s residence be at least 18.2California Legislative Information. California Code CCP 1011 A friend or adult relative who has no stake in the lawsuit qualifies, as do sheriff’s deputies and professional process servers.
Anyone who serves more than ten sets of legal documents in a calendar year has to register as a process server with their county clerk, which involves a $2,000 surety bond and Live Scan fingerprinting.3Alameda County Clerk-Recorder. Process Server Registration — Bond Filing Registered servers put their registration number on the form. A private individual who serves papers occasionally and falls below the registration threshold just supplies their name, address, and phone number.
Filling Out the Form Section by Section
Download the current version of POS-020 from courts.ca.gov before starting. Older versions circulate online and some fields have changed over the years.
Case Caption at the Top
Enter the case name in the format used on your other court papers, usually “Plaintiff v. Defendant,” and copy the case number exactly as it appears. A transposed digit sends the filing to the wrong case file. Include the court branch information the same way it appears on the papers you served.
Item 2: Documents Served
List every document you delivered, using the full title printed on each one. A motion, its supporting declaration, and a proposed order are three separate entries, not one. Writing something generic like “motion papers” when you served a “Notice of Motion and Motion to Compel Further Responses to Interrogatories” gives the other side an opening to argue the record is unclear about what they actually received. If the list runs past the space on the form, check the box in Item 2, complete attachment form POS-020(D), and attach it.1Judicial Council of California. Proof of Personal Service — Civil
Item 3: Recipient, Location, Date, and Time
Write the full legal name of the person handed the papers. Enter the exact address where service happened, including a suite number for an office or an apartment number for a residence. Fill in the date and the time of day. Precision here matters because the court uses these entries to confirm service met any applicable deadlines and happened at a place where service was proper. When you served more than one person, use the POS-020(P) attachment for the additional recipients.1Judicial Council of California. Proof of Personal Service — Civil
Item 4: Server Information
Check the box that matches your status: registered California process server, sheriff or marshal, employee of a registered process server, or someone not a registered process server. Registered servers fill in their name, county of registration, and registration number. Everyone else supplies name, address, and telephone number. This is how the court reaches the server if the recipient later disputes that service happened.
Declaration and Signature
At the bottom, the server signs under penalty of perjury under the laws of the State of California and enters the date and place of signing. California Code of Civil Procedure Section 2015.5 gives this declaration the same legal weight as a sworn affidavit when the signer states the information is true and correct under penalty of perjury and includes the date and place.4California Legislative Information. California Code of Civil Procedure 2015.5 A false proof of service can lead to perjury charges. Only the server signs, and they sign only after all the other fields are complete.
Filing the Completed Form
Once the server signs, the party who arranged service takes the original to the court clerk’s office and files it. Bring at least two photocopies. The clerk stamps a conformed copy with the filing date and hands it back as your receipt. There is generally no separate filing fee for a proof of service, though clerks may charge a small per-page copy fee.
Filing has to happen in time to be useful for whatever the underlying document requires. For motions on a law-and-motion calendar, the proof of service is commonly required at least five court days before the hearing. Other papers have their own deadlines set by statute or court order. A late-filed proof of service can cause the hearing to be taken off calendar or the court to disregard the filing.
Electronic Filing
Many California superior courts accept or require electronic filing in civil cases through an approved electronic filing service provider. Where e-filing applies, you scan the signed POS-020 and upload it. Parties who file electronically are generally also required to accept electronic service unless the court orders otherwise or the party is self-represented and has not consented to it.5Judicial Branch of California. Rule 2.251 Electronic Service Check your county’s local rules for what applies to your case type.
Keep the Conformed Copy
The file-stamped copy is your evidence that service happened. If the opposing party later claims they never received the papers, it’s the document you produce. Store it with the papers you served and the rest of the case file.
Mistakes That Get the Form Rejected or Challenged
The most common failures are simple and preventable. Using POS-020 for a summons and complaint instead of POS-010 gets the filing kicked back at the clerk’s counter. Vague or incomplete document titles in Item 2 give the other side room to argue about what was served. Wrong or incomplete addresses in Item 3 undercut the whole record. Having someone under 18, or a party to the lawsuit, perform service invalidates it no matter how well the form is filled out.
If a party can show they were not properly served, the court can continue the hearing, strike the filing, or refuse to consider the document. Where a default judgment rests on a false or defective proof of service, the court can set the judgment aside. Every field on POS-020 exists because something in the record depends on it, so treat each one as required rather than optional.