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California · Any Case Type

Served your papers? Now prove it.

Serving the other side isn't enough on its own — the court only knows it happened once you file proof. Here's which Proof of Service form matches how you served, how to fill it out, and what happens if you skip it.

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Server requirement
18+ & not a party

Whoever hands over or mails the documents must be at least 18 and have no personal stake in your case — that rules out you.

No proof of service on file, and the court can't confirm the other side had notice — your hearing can be pushed back.
Match your method

The form depends on how you served.

There isn't one universal proof of service form — pick the one that matches what your server actually did.

Personal Service

POS-020

Documents were handed directly to the other party by your server.

Mail with Signed Acknowledgment

POS-015

You mailed the documents with a Notice and Acknowledgment for the other party to sign and return.

First-Class Mail

POS-030

Documents were simply mailed, first-class, postage prepaid — no acknowledgment required.

Overnight, Messenger, or Fax

POS-040

Documents went out by overnight delivery, a messenger service, or fax.

Selected
Personal Service
Use Form POS-020

Use POS-020 when your server personally handed a non-summons document to the other party. (Personal service of the very first summons and complaint in a case uses POS-010 instead.)

Deadline to file: File before your hearing date so the court can confirm notice — sooner if the clerk requests it in advance.
What to do

Five steps, start to finish.

01

Have someone else serve the papers

Anyone 18 or older who isn't a party to your case can serve — a friend, coworker, relative, or a professional process server. You cannot serve your own documents.

02

Pick the matching proof of service form

Personal hand-delivery, mail with a signed acknowledgment, plain mail, or substituted service each have their own form — use the picker above to find yours.

03

Have your server fill it out completely

The server — not you — fills in the date, time, address, and method of service, then signs under penalty of perjury.

04

Attach the list of documents served

Every proof of service form asks exactly what was served — list every document by name and form number, not just "all the paperwork."

05

File the signed proof with the court

Turn in the completed, signed proof of service to the clerk before your hearing — keep a copy for your own records.

Proof of service forms

Every form comes straight from the Judicial Council.

Fill any of these directly in your browser — no printing, scanning, or separate PDF editor required.

POS-020

Proof of Personal Service—Civil

Most common

Covers hand-delivery of non-summons documents directly to the other party.

Fill This Form →
POS-015

Notice and Acknowledgment of Receipt—Civil

Mailed with the documents so the other party can sign and return it; the signed form becomes your proof once it comes back.

Fill This Form →
POS-030

Proof of Service by First-Class Mail—Civil

For documents simply mailed, first-class, postage prepaid, with no acknowledgment required.

Fill This Form →
POS-040

Proof of Service—Civil

The flexible, general-purpose form for service by mail, overnight delivery, messenger, or fax.

Fill This Form →
POS-050

Proof of Electronic Service

Electronic

Covers documents served electronically — by email or an approved e-filing service — to a party who has already appeared in the case.

Fill This Form →

On any proof of service form, watch for:

The server's name, age (18+), and address must be filled in — an anonymous or incomplete server section can void the proof.
List every single document served by exact title and form number, not a general description.
The date and time of service must be specific — "around noon" isn't enough for the signature line.
The server signs under penalty of perjury — you cannot sign this form on their behalf.
A Notice and Acknowledgment of Receipt (POS-015) isn't proof of service until it comes back signed — an unreturned copy means you'll need to serve some other way.
File the original signed proof with the court — a photocopy or a proof that only lives in your files doesn't count as filed.
What happens next

After you file your proof.

Day 0
Your server delivers or mails the papers
They note the exact date, time, address, and method used.
Soon after
The proof of service form is completed and signed
Your server fills out the matching POS form and signs it under penalty of perjury.
Before hearing
You file the signed proof with the court
The clerk adds it to your case file as the official record that notice was given.
Hearing day
The judge checks the file for proof of service
Without it on file, the judge may continue (postpone) your hearing to a later date.
Recommendations

Don't make these mistakes.

Never serve your own papers
Even if it would be easier, the server can't be a party to the case — courts routinely reject self-served proofs.
File the proof, don't just keep it
A completed, signed proof of service sitting in a folder at home does nothing for your case until it's filed with the court.
Double-check the document list
If a document you served isn't listed on the proof, the other side can argue they were never properly notified of it.
Keep a copy for yourself
Once filed, request a copy or note the filing date — you may need to reference it if service is ever challenged.
Can't find your server on hearing day?
The signed proof of service is the court's record that service happened — that's exactly why it needs to be filed, not just kept in a drawer.
Plain-English glossary

Terms you'll see on these forms.

Proof of service forms use specific legal terms. Here's what each one actually means.

Proof of service

A signed statement, filed with the court, confirming that specific documents were delivered to the other party on a specific date and by a specific method.

Personal service

Handing the documents directly to the other party in person.

Substituted service

Leaving the initial summons and complaint with another responsible person at the party's home or workplace when personal delivery isn't possible, followed by a required mailing — documented on POS-010, not the forms covered here.

Notice and Acknowledgment of Receipt (POS-015)

A form the other party signs to confirm they received mailed documents, avoiding the need for personal service. Service isn't complete until it's signed and returned.

Penalty of perjury

A legal declaration that everything stated on the form is true — knowingly filing false information is a crime.

Continuance

A postponement of a scheduled hearing to a later date, sometimes ordered when proof of service is missing or incomplete.

FAQ

Common questions, answered.

Can I serve the papers myself?

No. The server must be 18 or older and not a party to the case — a friend, relative, coworker, or professional process server can do it instead.

What if the other party won't accept the papers?

A server can still complete personal service by leaving the documents nearby if the person is present and refuses to physically take them — note the refusal on the proof of service.

How long do I have to file proof of service?

File it as soon as your server completes it, and always before your hearing — some courts require it a set number of days in advance, so check your local rules.

What happens if I lose the signed proof of service?

Contact your server for a duplicate or ask them to sign a new one describing the same service — the court needs a validly signed original or copy on file.

Do I need a different form for each document I serve?

No — one proof of service form can cover an entire packet of documents served together at the same time, as long as each is listed.

Served your papers? File your proof next.

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Formbono is not a law firm and this page is not legal advice. If your situation involves domestic violence, urgent safety concerns, or is otherwise complex, consider contacting a local self-help center or legal aid.