When and how child support stops in California

Child support in California ends automatically when the youngest child turns 18, finishes high school (whichever is later), or dies. If a child is still in high school after turning 18, support continues until graduation or age 19, whichever comes first. The paying parent does not need to file anything to stop payments at that point — the order simply expires. However, if you want to end support before that date, or if circumstances have changed significantly, you must file a request with the court.

The court that issued the original order is the only court that can terminate it early. You cannot simply stop paying and hope the matter goes away. If you stop without a court order, the other parent can file for contempt, and you may owe back payments plus interest and penalties.

Key Takeaways

  • Child support ends automatically when the youngest child turns 18 and is no longer in high school, or at age 19 if still enrolled in high school.
  • To end support before that date, you must file a Request to Modify, Reduce, or Terminate Child Support (Form FL-300) with the court that issued the original order.
  • You must show a substantial change in circumstances — such as job loss, significant income reduction, or a major change in custody — to convince the court to terminate early.
  • The other parent has the right to respond to your request, and the court will hold a hearing if you cannot agree.
  • If you stop paying without a court order, you can be held in contempt and ordered to pay back support plus penalties.

Grounds for early termination

California courts will not terminate child support simply because a parent wants it to end. You must demonstrate a substantial change in circumstances since the order was made. Common grounds include permanent job loss, a serious medical condition that prevents work, a major shift in custody (such as the child moving in with the paying parent full-time), or the child becoming emancipated (legally independent before age 18).

A temporary reduction in income — such as a few months without work — is usually not enough. The court looks for changes that appear to be lasting. If you were laid off and found new work at lower pay, that counts. If you took a voluntary pay cut or changed careers for personal reasons, the court may be less sympathetic, though it will still consider the change.

Death of the child also terminates support automatically, but you should still notify the court in writing to ensure the order is formally closed and no further payments are due.

How to file a request to terminate

Start by obtaining Form FL-300 (Request to Modify, Reduce, or Terminate Child Support) from the California court website or your local family court clerk's office. Fill in the case number, the names of both parents, and the child's name. In the section marked "Reason for Request," select the box for termination and briefly describe why — for example, "Child will turn 18 on [date] and is no longer in high school" or "Substantial change in circumstances: permanent job loss as of [date]."

You will also need to file a Declaration Under Penalty of Perjury (Form FL-110) that explains the change in detail. This is a sworn statement, so it must be truthful and specific. Include dates, amounts, and any supporting documents — a termination letter from your employer, a medical report, a new custody order, or proof that the child has graduated or turned 18.

File both forms with the court clerk in the county where the original order was issued. You will pay a filing fee, which varies by county but is typically $50 to $100. If you cannot afford the fee, you can request a fee waiver using Form FW-001.

Serving the other parent and waiting for a response

After you file, you must serve a copy of your request on the other parent or their attorney. This means delivering the papers to them by mail, email, or in person — not just telling them about it. Keep proof of service (a signed receipt or a declaration that you mailed it) and file that proof with the court.

The other parent then has 30 days to respond. They may agree that support should end, in which case the process moves quickly. More often, they will file a response disagreeing with your request, especially if you are asking to terminate before the child reaches 18. If they respond, the court will schedule a hearing, usually within 60 to 90 days.

If the other parent does not respond within 30 days and you have proof of service, you can ask the court to grant your request by default. However, courts are reluctant to do this in child support cases, so be prepared for a hearing regardless.

What happens at the hearing

At the hearing, both parents present their case to a judge or court-appointed officer called a family law facilitator or mediator. Bring documents that support your position: pay stubs showing your current income, medical records if health is the issue, proof of job loss, or evidence of a custody change. The other parent will present their side, which may include arguments that you can still afford to pay or that the change in circumstances is temporary.

The judge will consider California's child support guidelines, which take into account both parents' incomes, custody time, and the child's needs. Even if your income has dropped, the judge may order you to continue paying a reduced amount rather than terminating entirely. The judge's goal is to ensure the child's needs are met, not to relieve the paying parent of all obligation.

If you and the other parent reach an agreement before the hearing, you can submit a Stipulation and Order (Form FL-350) signed by both of you. The judge will usually approve this without a hearing, which is faster and less adversarial.

What happens if support ends automatically at age 18

When the youngest child turns 18 and is no longer in high school, or turns 19 if still enrolled, support terminates by law. You do not need to file anything. However, it is wise to send a written notice to the other parent and the court confirming the termination date and that no further payments are due. This prevents confusion and protects you if the other parent later claims you owe back support.

If the child is still in high school after turning 18, support continues. You must continue paying until the child graduates or turns 19, whichever comes first. If the child drops out of high school, support ends immediately — but you should document this and notify the court to be safe.

Consequences of stopping payment without a court order

If you stop paying child support without a court order, even if you believe you have grounds to terminate, the other parent can file a motion for contempt. The court can order you to pay all back support plus interest (currently 10% per year in California), court costs, and attorney fees. You may also face wage garnishment, a hold on your tax refund, or suspension of your driver's license.

The only exception is if support has ended by law — the child turned 18 and is no longer in high school, or the child died. In all other situations, you must have a court order before you stop paying.

Frequently Asked Questions

What if my child is in college — does support continue?

No. California law does not require parents to pay for college. Support ends when the child turns 18 and is no longer in high school, regardless of whether they are in college. The only exception is if the original court order specifically includes college support, which is rare.

Can I terminate support if the other parent is not following the custody order?

Not directly. The two issues are separate. If the other parent is violating custody, you can file a motion to enforce the custody order, but that does not automatically end child support. You would need to show a substantial change in circumstances — such as the child now living with you full-time — to terminate support. File a separate request to modify custody first, then use that change to request termination of support.

Do I have to pay support if the child is emancipated before age 18?

If a child becomes legally emancipated — meaning they are declared independent by the court — support ends. Emancipation is rare and requires a formal court petition. Simply moving out or getting a job does not emancipate a child. If you believe your child is emancipated, file a request to terminate support and include proof of the emancipation order or the circumstances that led to it.

What if I cannot afford the court filing fee?

You can request a fee waiver using Form FW-001 (Application for Waiver of Court Fees and Costs). File it with your request to terminate. If approved, you will not have to pay the filing fee. The court will still process your request.

How long does it take to terminate support?

If both parents agree and you submit a signed stipulation, the court can approve termination within a few weeks. If you must go to a hearing, expect two to four months from the time you file until the judge makes a decision. If support ends by law (the child turns 18 and is no longer in high school), it ends immediately with no court action needed.