Skip to main content

Children / custody / support

Child Support Mediation in California: What It Is and How It Works

Last updated October 4, 2026

Short answer

Child support mediation in California: the guideline formula, the five declarations needed to go below guideline, disclosure deadlines, and court approval.

Child support mediation is a process in which you and your spouse work with a neutral mediator to reach your own agreement on child support. The mediator does not decide the amount or represent either of you. California's guideline formula still applies, both of you still exchange financial disclosures, and the court must approve whatever you agree.

Most people facing this question are parents in the middle of separating. They are trying to work out how two households will cover a child's needs. Often one spouse is reading on behalf of both, wondering whether a private conversation with a neutral person could settle support, or whether a judge will set a number no matter what. The uncertainty is real. Money, time with the children and the shape of the next several years all feel tied to one figure.

This article explains what child support mediation means in California, how the guideline formula limits what parents can agree to, what mediation cannot replace, and how private divorce mediation differs from the court's own custody mediation. It is written for couples in San Diego County and for couples anywhere in California who are considering mediating online.

What Child Support Mediation Means Under California Law

Evidence Code section 1115 defines mediation as "a process in which a neutral person or persons facilitate communication between the disputants to assist them in reaching a mutually acceptable agreement." The same section defines a mediator as "a neutral person who conducts a mediation." Those two sentences carry the whole idea. The mediator helps you and your spouse talk. The two of you decide.

That neutrality has practical meaning. A mediator does not represent either spouse, does not advocate for either spouse, and does not act as either spouse's lawyer. A mediator also does not rule on anything. If you and your spouse do not agree on child support, the mediator cannot set an amount for you.

Child support mediation is not a separate legal proceeding with its own rules. It is usually one part of private divorce mediation, where support sits alongside custody, property and other issues. In private mediation, child support is something you and your spouse can discuss and negotiate within the limits California law sets.

Private mediation is different from the custody mediation the court itself provides. When custody or visitation is contested in a filed case, Family Code section 3170 requires the court to set those issues for mediation. In San Diego County, that court process is child custody recommending counseling with the court's Family Court Services, under Family Code sections 3170 and 3183. It focuses on custody and visitation, and it is a court program. Simple Divorce Mediation is a private practice and has no connection to the court, Family Court Services or any government program.

Family law cases in San Diego County are heard by the Superior Court of California, County of San Diego. Where any particular case is filed, and which rules apply, depends on the spouses' circumstances, such as where they live.

How California's Guideline Formula Shapes Any Child Support Agreement

California sets child support through a statewide uniform guideline, a formula written into Family Code section 4055. The formula looks at each parent's net monthly disposable income, meaning income after the deductions the law allows, and at the approximate percentage of time each parent has primary physical responsibility for the children. Family Code section 4058 defines income broadly, "from whatever source derived," including wages, salaries, bonuses, commissions, rents, dividends, pensions, interest and business income, among other sources.

The amount the formula produces carries special weight. Under Family Code section 4057(a), it "is presumed to be the correct amount of child support to be ordered." That presumption can be rebutted only in the ways section 4057(b) describes, one of which is that the parties have stipulated to a different amount under section 4065(a).

The principles behind the formula appear in Family Code section 4053. They include that a parent's first obligation is to support the parent's minor children, that both parents are mutually responsible for that support, that the children's interests are the state's top priority, and that children should share in the standard of living of both parents. Those principles help explain why the law does not leave child support entirely to private agreement.

Family Code section 4065(a) states the rule directly: "Unless prohibited by applicable federal law, the parties may stipulate to a child support amount subject to approval of the court." A stipulation is a formal agreement between the parties. So parents can agree, but the court reviews what they agree to.

If the agreed amount is below the guideline formula amount, the court does not approve it unless the parents declare all of the following: they are fully informed of their rights concerning child support; the order is being agreed to without coercion or duress; the agreement is in the best interests of the children involved; the needs of the children will be adequately met by the stipulated amount; and the right to support has not been assigned to the county under Welfare and Institutions Code section 11477 and no public assistance application is pending. Section 4065(c) adds that where the local child support agency is providing services in the case, the stipulation is not valid unless that agency signs it.

In practice, mediation can give you and your spouse room to understand the formula, test different time-sharing arrangements and talk through what the children actually need. It does not give parents the power to choose any number they like. The court still reviews and approves the result. Parents working through support and a parenting plan at the same time often find the two questions closely linked, because time-share is part of the formula.

Financial Disclosure: What Mediation Cannot Replace

Child support depends on income, and the Family Code requires each spouse to put financial information on the table in a specific way. Mediating a divorce does not remove that duty, shorten it or turn it into an informal exchange. The declarations of disclosure are formal documents, executed under penalty of perjury on forms prescribed by the Judicial Council.

The first is the preliminary declaration of disclosure. Under Family Code section 2104(f), the petitioner serves it either with the petition or within 60 days of filing the petition, and the respondent serves it either with the response or within 60 days of filing the response, unless the parties extend that time by written agreement or the court extends it by order. When the petitioner served the summons and petition by publication or posting under a court order and the respondent files a response before a default judgment is entered, the petitioner has 30 days from the filing of that response. Section 2104(a) also recognizes a court order for good cause and the situations section 2110 describes as exceptions.

The second is the final declaration of disclosure, served together with a current income and expense declaration. Under Family Code section 2105(a), except by court order for good cause, each party serves these before or at the time the parties enter into an agreement resolving property or support issues other than temporary support, or, if the case goes to trial, no later than 45 days before the first assigned trial date. Section 2105(a) also warns that perjury on the final declaration may be grounds for setting aside the judgment, or parts of it.

The spouses may waive the final declaration only mutually. One spouse cannot waive it alone. Under Family Code section 2105(d), a mutual waiver must be executed under penalty of perjury, either in open court or by separate stipulation, and must include the representations that section lists.

For a couple mediating child support, this matters directly. The income figures that drive the guideline formula come from these disclosures. A divorce mediation checklist can help organize the records, but the formal declarations remain required.

Confidentiality in Mediation — and Its Limits

Evidence Code section 1119 protects what happens in mediation, "except as otherwise provided in this chapter." Under section 1119, evidence of anything said or any admission made for the purpose of, in the course of, or pursuant to a mediation or a mediation consultation is generally not admissible or subject to discovery in civil and other noncriminal proceedings where testimony can be compelled. Writings prepared for the mediation are covered the same way, and section 1119(c) provides that communications, negotiations and settlement discussions between participants in the course of a mediation "shall remain confidential."

That protection is strong, but it is not absolute. The most important limit for a couple reaching a child support agreement is Evidence Code section 1123. A written settlement agreement prepared in the course of, or pursuant to, a mediation is not made inadmissible or protected from disclosure if it is signed by the settling parties and any of these conditions is met: the agreement says it is admissible or subject to disclosure, or words to that effect; the agreement says it is enforceable or binding, or words to that effect; all parties expressly agree in writing, or orally in the manner section 1118 provides, to its disclosure; or the agreement is used to show fraud, duress or illegality relevant to an issue in dispute.

That is how mediated agreements can become part of a court case. A support agreement meant to be submitted for the court's approval usually needs to be something the court can see.

Evidence Code section 1115(c) defines a mediation consultation as "a communication between a person and a mediator for the purpose of initiating, considering, or reconvening a mediation or retaining the mediator." Whether any particular conversation fits that definition depends on its facts.

If either spouse has a lawyer, Evidence Code section 1129 places a duty on that lawyer. The attorney must give the client a printed disclosure of the confidentiality restrictions in section 1119, and obtain the client's signed acknowledgment, as soon as reasonably possible before the client agrees to participate in the mediation, or as soon as reasonably possible after being retained if the attorney is retained later.

When the Court Orders Custody Mediation — and How That Differs

Not all family law mediation is voluntary. Family Code section 3170(a) provides that if it appears on the face of a petition, application or other pleading to obtain or modify a temporary or permanent custody or visitation order that custody, visitation or both are contested, "the court shall set the contested issues for mediation."

In San Diego County, that mediation is child custody recommending counseling with the court's Family Court Services. Family Code section 3183(a) explains the name. Except as provided in section 3188, the mediator may, consistent with local court rules, submit a recommendation to the court about custody or visitation, if the mediator has first given the parties and their attorneys the recommendation in writing before the hearing. A mediator authorized to do this is called a "child custody recommending counselor." Family Court Services calls this person the Family Court Counselor.

According to Family Court Services, if no agreement is reached, the counselor makes a recommendation and the court hearing proceeds. The counselor's recommendation can carry real weight, and the judge decides. Under section 3170(b), domestic violence cases are handled by Family Court Services in accordance with a separate written protocol approved by the Judicial Council.

This is a different process from private divorce mediation. The court's program centers on custody and visitation in a case already before the court. Private mediation, like the work Simple Divorce Mediation does, is chosen by the spouses and can address child support, custody, property and other divorce issues together. More on the court process appears in the article on child custody mediation.

When Mediation May Not Be Appropriate

If you are in immediate danger, call 911.

Mediation may not be right for every couple. It depends on both spouses being able to speak freely and make choices without fear. Where there has been domestic violence, coercion or a protective order, sitting across from the other spouse to negotiate, even online, may not be safe, and safety comes first.

The law itself reflects this. Section 4065(a) requires parents agreeing to below-guideline support to declare that the order is agreed to without coercion or duress. An agreement shaped by pressure does not meet that standard. Section 3170(b), described above, routes domestic violence cases in the court's custody mediation through a separate protocol for the same reason.

When one spouse is afraid of the other, the question is not how to reach an agreement. It is how to be safe. Court protections and other resources exist for those situations, and they stand apart from private mediation.

How Private Divorce Mediation Addresses Child Support

Child support in private divorce mediation is worked through by both spouses together, with a neutral mediator guiding the conversation. The mediator helps you and your spouse share information, understand how the guideline formula works with your incomes and time-share, and talk through the children's needs. The mediator does not represent, advocate for or decide anything for either of you.

Either spouse may have a lawyer of their own during mediation. Some couples choose that, and some do not. If a spouse does, that lawyer's section 1129 disclosure duty applies.

When you and your spouse reach agreement on child support, the agreement is written down and submitted to the court as part of the case. The court reviews it under section 4065. An amount at or above guideline is reviewed for approval; an amount below guideline requires the declarations described earlier. The article on the divorce mediation agreement walks through how that written agreement comes together.

Timing has its own rule. Under Family Code section 2339, no judgment of dissolution is final for the purpose of ending the marriage until six months have passed from the date the summons and petition are served or the date the respondent appears in the case, whichever occurs first. The court may extend that period for good cause. Reaching a support agreement does not change that waiting period. More on how the pieces fit in time appears in the article on the divorce mediation timeline.

Some couples find that mediation feels less adversarial than litigating support, depending on the couple and the issues. It may also leave them with an arrangement they understand and helped build. Neither outcome is assured. What mediation offers is a structured way for both parents to work on the question together, within the law's limits.

For couples with children, support rarely stands alone. It connects to time-share, to who covers which expenses and to how the parents will communicate going forward. Thinking about support with that wider picture in view is part of what divorce mediation with children involves.

If You'd Like to Talk Through Child Support in Your Divorce

Child support carries more weight than most divorce questions because it touches every month of a child's life, and because the law limits what parents can agree to on their own. A conversation about your situation can cover how the guideline formula, the disclosure deadlines and the court-approval rule apply to the facts you and your spouse are working with, and whether private mediation fits where you are. Simple Divorce Mediation mediates California divorces for couples in San Diego County and, online, for couples anywhere in California.

To talk through how these rules apply to you and your spouse, call Simple Divorce Mediation at 858-330-1378 for a joint mediation consultation.

Attorney Review & Contribution: Amy J. Lass | California Bar No. 246779

Amy J. Lass contributes legal expertise and reviews selected legal content for accuracy. General information only — not legal advice.

Divorce mediation in California

Schedule a Joint Mediation Consultation

Share a little about your situation so we can understand what's involved.

Schedule a Joint Mediation Consultation

Consultation request

Tell Us a Little About Your Situation

Provide the basic details needed to understand what mediation would need to cover.

What does this involve? Select all that apply. *

Privacy PolicyTerms of Use

Related issues

Keep reading

Common questions

How does mediation work with child support?

Both spouses work with a neutral mediator to discuss child support and try to reach a voluntary agreement. The mediator helps you communicate but does not decide the amount or represent either of you. Any agreement is subject to court approval under Family Code section 4065.

Can parents agree to a child support amount below the California guideline?

Parents may agree on an amount, but the court does not approve one below the guideline formula unless the parents make the declarations Family Code section 4065(a) requires. Those include that they are fully informed of their rights, are agreeing without coercion or duress, and that the agreement serves the children's best interests and meets their needs. Parents cannot simply agree to any amount.

Is mediation confidential when child support is discussed?

Mediation communications are generally confidential under Evidence Code section 1119, but that protection is not absolute. A written settlement agreement signed by both spouses can be admitted or disclosed in the situations Evidence Code section 1123 lists, for example when it says it is enforceable or binding.

Is there a downside to mediation?

Mediation depends on both spouses being able to take part freely and in good faith, and it cannot produce an agreement if they do not reach one. Where there has been domestic violence, coercion or a protective order, mediation may not be appropriate, and safety comes first. Any child support agreement still requires court approval.

Does mediating a divorce mean we skip the financial disclosure forms?

No. Each spouse serves a preliminary declaration of disclosure with the petition or response, or within 60 days of filing it, unless extended by written agreement or court order (Family Code section 2104(f)). Except by court order for good cause, the final declaration and a current income and expense declaration are due before or at the time of an agreement resolving property or support issues other than temporary support, unless both spouses mutually waive the final declaration (Family Code section 2105).

What is the difference between private divorce mediation and the court's custody mediation?

Private divorce mediation is a process the spouses choose, in which a neutral mediator helps them reach agreement on divorce issues, including child support. The court's custody mediation under Family Code section 3170 is required when custody or visitation is contested, and in San Diego County it is child custody recommending counseling through Family Court Services. The two are separate, and Simple Divorce Mediation is not connected to Family Court Services or any government program.

Does a child support agreement reached in mediation need court approval?

Yes. Under Family Code section 4065, a child support agreement is subject to the court's approval, whether it was reached in mediation or another way. An amount below the guideline formula is approved only if the parents make the declarations that section requires.

Thinking About Mediation Together?

Mediation works best when both spouses are part of the conversation. Reach out, together or on your own, and we'll answer your questions about how the process could work for your family.

Sources

  1. 01California Evidence Code section 1115 — California Legislative Information
  2. 02California Evidence Code section 1119 — California Legislative Information
  3. 03California Evidence Code section 1123 — California Legislative Information
  4. 04California Evidence Code section 1129 — California Legislative Information
  5. 05California Family Code section 4053 — California Legislative Information
  6. 06California Family Code section 4055 — California Legislative Information
  7. 07California Family Code section 4057 — California Legislative Information
  8. 08California Family Code section 4058 — California Legislative Information
  9. 09California Family Code section 4065 — California Legislative Information
  10. 10California Family Code section 2104 — California Legislative Information
  11. 11California Family Code section 2105 — California Legislative Information
  12. 12California Family Code section 3170 — California Legislative Information
  13. 13California Family Code section 3183 — California Legislative Information
  14. 14California Family Code section 2339 — California Legislative Information
  15. 15Superior Court of California, County of San Diego — sdcourt.ca.gov
  16. 16California Courts Self-Help Guide — California Courts Self-Help