Life changes—you start a new job, face a sudden job loss or your custody schedule shifts. As your family’s situation evolves, your current child support order may no longer be accurate or fair.
Many parents believe they can simply ask for a change, but California law requires a specific legal reason. To modify an existing child support order in California, you must show the court a “material change in circumstances.”
What does “material change” mean?
California courts value stability in financial orders. To prevent constant back-and-forth, courts only revisit child support orders when a truly significant change has happened since the last order was finalized.
A “material change in circumstances” is a significant, verifiable alteration in the facts used to calculate the original order. Simply wanting more or less support is not enough. You must prove that the foundational financial or custody realities have shifted permanently.
Common reasons to seek a change
You may have a material change if key factors affecting the child support calculation have changed “significantly.” Here are common and compelling reasons to request a new order:
- Income shift: The state may consider revisions if either parent experiences a “significant” increase or decrease in their gross monthly income, such as from a job layoff, a major promotion or a permanent disability.
- Custody/visitation schedule alteration: A significant and lasting change in the amount of time each parent spends with the child occurs, directly impacting the state guideline calculation.
- Change in the child’s needs: The child’s necessary expenses may have changed substantially, like enrollment in a specialized school or a new, ongoing medical condition requiring treatment not covered by insurance.
- Incarceration: One parent’s incarceration potentially affects their income and parenting time.
You must clearly document these changes. You cannot rely on an informal agreement with the other parent to change the official court order.
What are the formal steps?
Modification is not automatic in California. If parents agree on revisions, they can file a Stipulation to Establish or Modify Child Support and Order (Form FL-350).
If the revision is disputed, the requesting parent must file a “Request for Order” form with the court, or FL-300. They must also include an Income and Expense Declaration (Form FL-150), providing current financial data that contains evidence of the material change, which may consist of termination letters, new pay stubs, medical bills or revised custody orders.
Importantly, the court can only modify the order back to the date you filed the Request for Order, not the date your circumstances changed. Do not risk filing an incomplete or incorrect request. A skilled child support lawyer can review your case and ensure your support order reflects your family’s current reality.