Change an Existing California Family Court Order

FamilyCourtHelp is an independent educational platform. It is not a court, law firm, government agency, or government partner. We organize and link to publicly available resources published by courts and government agencies. Official requirements may change. Always confirm current requirements with the applicable court or clerk.

A California family court order is not permanent, but changing one is its own filing in the Superior Court, usually in the Family Law Division, normally inside the case that produced the original order.

Courts generally want to see that something real has changed since the last order, not simply that you have changed your mind. For support, an updated financial affidavit almost always rides along with the request. The official documents below are what California publishes for this.

Official California modification resources

Official links below open in a new tab. You are leaving FamilyCourtHelp and opening an external government or court website.

California family law forms (official index) (California judicial branch): The official statewide collection of California family law forms. When a direct document link stops working, this index is where the current version lives. https://www.courts.ca.gov/forms.htm?filter=FL

California financial affidavit and disclosure forms (courts.ca.gov): The official source for the financial disclosure paperwork most California family cases ask both sides to complete. https://www.courts.ca.gov/forms.htm?filter=FL

California child support guideline resources (courts.ca.gov): Official California child support guideline materials, worksheets, or calculators. https://www.courts.ca.gov/1195.htm

California court self-help resources (California courts self-help): Official self-help information for people handling their own California family case, including instructions and plain-language guides. https://www.courts.ca.gov/selfhelp.htm

Verified official California modification documents

These official documents are used to ask a California court to change an order that already exists.

Notice of Motion and Motion for Modification (FL-390), form FL-390 (Post-Judgment / Modification), official document: https://courts.ca.gov/sites/default/files/courts/default/2024-11/fl390.pdf

Earnings Assignment Order for Spousal or Partner Support (FL-435), form FL-435 (Post-Judgment / Modification), official document: https://courts.ca.gov/sites/default/files/courts/default/2024-11/fl435.pdf

Official link data for California was last verified June 2026. Report anything outdated through our contact page and we will re-check the official source.

Frequently asked questions

Do I start a new case to change my order?

Usually not. A modification is normally filed inside the existing case, and the other parent has to be served with it. Check the official California instructions above for how this state handles it.

What counts as enough of a change?

Courts look for a real, lasting change in circumstances, such as a significant income change, a move, or a serious change in the child's needs. The judge decides whether your facts clear the bar.

How much does it cost to file a family case in California?

Dissolution filing fee: ~$435-$450. If you cannot afford the fee, ask the clerk about a fee waiver or indigency application; every state has a process for requesting one.