Family Court Playbook · Step 4 of 12

How to Write a Declaration for Family Court

Structure, tone, and techniques for writing effective MC-030 declarations in California

What is a declaration?

A declaration is a written statement of facts, signed under penalty of perjury. In California family court, it's how you tell the judge what happened and why you're asking for orders. It's filed on form MC-030 (Declaration) or as part of FL-320 (Responsive Declaration).

When you need one

You need a declaration whenever you file a Request for Order (FL-300) or respond to one (FL-320). The declaration is where you make your case — the forms themselves just identify what you're asking for, but the declaration explains why.

onbello.com/declaration

From your words to legal language

AI transforms plain English into court declarations

What you tell us

|

Structure

Opening paragraph (perjury clause), background facts (chronological), specific incidents (dates, details), impact on children, what you're asking for (prayer).

Be specific

Instead of “My ex is always late,” write “On March 3, March 10, and March 17, 2026, Respondent returned the children between 45 and 90 minutes after the scheduled exchange time of 6:00 PM.”

Common mistakes

Being too vague, including opinions instead of facts, emotional language that undermines credibility, not including dates, not organizing chronologically.

Never lie in a declaration

A declaration is signed under penalty of perjury. Making false statements is a crime (Penal Code § 118). Stick to facts you can prove.

MC-030 vs. FL-320

MC-030 is a general declaration you can attach to any motion. FL-320 (Responsive Declaration to RFO) is specifically for responding to a Request for Order — it has built-in sections for custody, support, and property issues.

Let AI write your declaration

Our guided tool helps you prepare a declaration in your own words and fills out your court paperwork.

Start your filing — $129

A family law attorney will always have the biggest impact on your case. If you can afford one, we encourage you to hire one.