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SUM-300Mandatory

Declaration of Lost Summons After Service

California · Judicial Council of California · Effective January 1, 2007

This form is used to tell the court that you served a copy of the summons to the other party, but you are returning this form instead of the original summons. It asks you to fill out details about how and when the service happened.

The court describes it as: Tell the court that you had a copy of the summons delivered to (served on) the other party and that you are returning this form to the court instead of the original summons.

Open the official PDFfrom Judicial Council of California

Where this fits in a case

Start a case

Stage: Start a case

This form is used after a person has served the summons to the other party, but instead of returning the original summons, they are returning this declaration.

Either party may file.

Common questions

What is this form for?
This form is a declaration to tell the court that you served the summons to the other party and that you are returning this form instead of the original summons.
Who fills out this form?
The form requires the person who served the summons to fill it out.
Does this form require a fee?
The provided text does not mention any filing fees for this form.

Revision history

No changes recorded since we started tracking this form on October 9, 2026. The current version took effect January 1, 2007.

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