California child support usually starts one of two ways: through your county Local Child Support Agency (LCSA, also called DCSS or Child Support Services), or through family court. If you want the state to help open, track, collect, and enforce support, LCSA is often the simplest entry point, especially if the other parent is hard to locate.
If you are in family court, child support is requested inside an existing family law case, or inside a case you open first (parentage, divorce, or certain custody and support filings).
In practice, you file a Request for Order (FL-300) with a financial disclosure (usually FL-150), serve the other parent correctly, and attend a hearing where the court applies the statewide guideline based largely on incomes and parenting time.
One month, you’re handling it all. School fees, medical co-pays, childcare, groceries, and the “how is it already due again?” expenses. Next, you’re staring at the numbers and realizing the current setup isn’t sustainable for either household, and it’s putting pressure where it shouldn’t: on your child’s stability.
Filing for child support in California doesn’t have to feel like a fight. It’s a legal process used to create a clear, enforceable support order, so a child’s financial needs are shared between both parents in a consistent, trackable way, based on income and parenting time.
Whether you’re requesting support or responding to a request, this blog walks you through how cases begin, what gets filed, how service and hearings work, and what happens if you are pregnant.
Let’s start at the beginning.
How to File for Child Support in California: Your Two Starting Points
In California, there are two main ways to file for child support: through your county’s Local Child Support Agency (LCSA, also called DCSS or Child Support Services), or directly through family court.
The right path usually depends on one practical question: do you want the agency to drive the process, including collection and enforcement, or do you want to handle the filing directly in court (often because there are other family law issues happening in the same case)?
No matter which route you choose, the building blocks are similar: get the right case opened, put accurate financial information on the record, make sure the other parent is properly served or located, and show the court a reliable picture of income, parenting time, and child-related costs.
The difference is who does the heavy lifting. With LCSA, the agency drives the case and long-term enforcement. In family court, you (or your attorney) drive the filings.
How to File for Child Support Through the LCSA (The Agency Route)
The Local Child Support Agency is California’s government-run child support program. Every county has one. Opening a case is generally free, and the program is available regardless of income, although in some cases a small annual service fee may be charged after a certain amount of support is collected.
Many parents choose LCSA when there is no existing court case, when the other parent is hard to locate, or when they want the state to handle collection and enforcement over time.
What LCSA can do for you is substantial. The agency can locate a missing parent, establish legal parentage through genetic testing if needed, file with the court to get a support order, and enforce that order through wage withholding and other collection tools.
In many cases, the agency can arrange genetic (DNA) testing at no cost or low cost, but you should ask your local office about any fees in your specific case.
What LCSA cannot do is also worth knowing. The agency does not handle custody or visitation disputes, does not file divorces, and does not pursue restraining orders.
If your situation involves parenting time disputes or safety concerns, you may need family court in addition to LCSA, and sometimes both processes run at the same time.
If LCSA sounds like the right fit, the good news is you don’t have to walk into court on day one or know every legal detail up front. Your first job is simply to get the case opened, and that begins with enrollment.
Step 1: Enroll with Your County LCSA
Enrolling with the LCSA (your county’s child support agency) simply means you’re submitting an application to open a child support services case. Basically, you’re asking the agency to step in and provide services for your family.
The service is free, and either parent can start the process, whether you’re asking for support or you want a clear, official order that tells you what you should pay. If you have ever received public assistance, the state may open an LCSA case automatically to seek support from the other parent.
Step 2: Gather and Submit Information About Both Parents
You’ll be asked for contact information for both parents, Social Security numbers, employer details, last known addresses, and information about the children. The more detail you provide upfront, the faster the agency can move. If you do not know where the other parent works, the agency has tools to help identify that.
Step 3: Let the Agency Handle Parentage If It Isn’t Established
If legal parentage has not been established, meaning there is no judgment, voluntary declaration of parentage, or prior court order confirming who the child’s legal parents are, LCSA can include parentage as part of the case. The court can then decide who the legal parents are, and the agency can request genetic testing when needed.
Step 4: Attend the Court Hearing
After the agency files paperwork with the court, the other parent is served and usually has 30 days to respond. A hearing is then scheduled where a judge or commissioner sets child support using California’s statewide guideline formula, which factors in both parents’ incomes and the parenting time split.
The agency’s attorney is there to support the child support order process, but does not represent either parent personally. They represent the interests of the state and the child support program, not you as an individual.
Step 5: Enforcement Begins Through the State Disbursement Unit
Once a support order exists, payments are processed through the State Disbursement Unit (SDU), creating a trackable record for both parents. That’s also why wage withholding is so common.
California law generally requires that a wage and earnings assignment and an Income Withholding Order be issued when a child support order is made, so payments go through the SDU and are recorded.
In most cases, California support orders include an Income Withholding Order (sometimes called an earnings assignment). It tells an employer to take the support amount directly from the paying parent’s paycheck and send it to the SDU.
Importantly, withholding is not a sign that someone did something wrong; it’s the standard setup to make payments consistent and traceable.
If the paying parent changes jobs or payments stop, the LCSA can update or issue withholding notices and use other enforcement tools—so you typically don’t have to “start over” just to get payments flowing again.
Nuance worth knowing: If you already have a child support court order, you can still open an LCSA case just to enforce that existing order. You’re not asking the court to “set child support again.” You’re asking the agency to step in, connect your current order to their system, track payments, and use enforcement tools (like wage withholding) if payments are missed.
How to File for Child Support in Family Court
This is the court route. You use it when you want to request child support inside a California family law case.
If You Already Have a Case: Start Here
If you already have a California family law case on file (divorce, legal separation, or parentage), you generally request child support within that existing case using a Request for Order (form FL-300).
If You Don’t Have a Case Yet: Start Here First
California doesn’t have a standalone child support petition. Support is always requested inside a family law case. So if there’s no case on file yet, your first move is to open the right type of case for your situation.
The type of case you start depends on your circumstances. A parentage case (form FL-200) is typically the right starting point if you and the other parent were never married — it formally establishes the legal parent-child relationship and can include a child support request in the same proceeding.
If you’re married but separated and not yet ready to file for divorce, a custody and support case (form FL-260) may be appropriate. If you’re filing for divorce or legal separation, the initial petition (form FL-100) is where child support gets raised as part of the broader case.
Once your case is open, the next step is to ask the court for a child support order by filing a Request for Order (FL-300) with your financial disclosure.
Step 1: Complete Form FL-300 and Your Income and Expense Declaration
Form FL-300 is the Request for Order. This is how you ask the court to make child support orders. Along with FL-300, you will usually complete an Income and Expense Declaration (form FL-150).
In some circumstances, typically straightforward income and an uncontested case, a simplified Financial Statement (FL-155) may be used, but FL-150 is the standard in many support requests.
The Income and Expense Declaration tells the court what you earn, what you spend on basic needs, and what you pay for items like health insurance and childcare.
Step 2: File Your Forms with the Court Clerk
Take your completed forms to the family law clerk’s office where your case is filed, or e-file if your court offers it. Many California courts also have self-help centers and family law facilitators who can review your forms before you file, which is useful if you are filing without an attorney.
The clerk will stamp your documents and either assign a hearing date, assign a case number, give you copies to serve on the other parent, or provide next-step instructions.
Step 3: Serve the Other Parent Correctly and on Time
You cannot serve the papers yourself. Service must be done by a third party who is at least 18 years old and not a party to the case. Unless the court orders a different schedule, personal service must usually be completed far enough before the hearing (often at least 16 court days).
Mail service has different timing rules, and out-of-state service can add more time. If service is not done correctly, the hearing can be delayed.
Step 4: File Your Proof of Service
Once the other parent has been served, your server completes a Proof of Service form. You then file that proof with the court within the required timeframe (often at least 5 court days before the hearing unless your court has different local rules). Without it, the judge may not proceed.
Step 5: Attend the Hearing with Strong Financial Documentation
At the hearing, bring recent paystubs, your most recent tax returns, proof of health insurance premiums, childcare receipts, and anything that reflects your actual parenting schedule. The guideline calculation depends heavily on both parents’ incomes and the timeshare.
Even small disputes about schedules can change the math. Come prepared to explain your numbers and back them up. Remember that the judge is trying to plug real numbers into a formula, so your job is to show what those numbers are.
If You Were Served With Child Support Papers
If you were served with a Request for Order asking for child support, do not ignore it. Read the hearing date carefully, gather your income documents right away, and prepare your financial disclosure (often FL-150).
If you disagree with the information the other parent provided about income, expenses, or parenting time, bring documents that show what is true in real life, not what is assumed on paper.
Also pay attention to local court rules and deadlines, because they can affect when your paperwork must be filed and how it must be served. Most courts post their local rules and self-help guides online, and they often include plain-language checklists and timelines for child support hearings.
How to File for Child Support While Pregnant
The process is similar to starting a parentage case described above. What changes during pregnancy is timing, what the law allows before birth, and two specific requests that are easy to miss.
Step 1: File a Parentage Action Before the Birth
Under California Family Code Section 7633, a parentage action can be filed and a judgment or order entered before a child is born. The key nuance is that enforcement is stayed until after the birth.
In plain terms, this means the court can make orders while you are pregnant, but those orders cannot be enforced until the baby is born. Filing during pregnancy can help you avoid starting from scratch after the birth.
Step 2: Raise Pregnancy and Confinement Expenses as a Separate Request
Under California Family Code Section 7637, a court may order a parent to pay reasonable pregnancy and confinement expenses (documented medical and hospital costs tied to pregnancy and birth, like prenatal care and delivery-related bills) as part of a parentage judgment or order. These costs are not automatically folded into a future child support order.
They are a separate category that the court can address, but you usually need to request it. If you do not clearly ask for these pregnancy and birth costs, the court may only look at ongoing child support going forward.
Step 3: Document Every Pregnancy-Related Expense From the Start
When your case eventually comes before a judge, documentation is what transforms a general request into a concrete, provable claim. Keep every receipt, insurance explanation of benefits, hospital invoice, and medical bill from the start of your pregnancy.
The standard is what is “reasonable,” and that is measured against documented costs. Reasonable usually means the kinds of medical and hospital expenses that would make sense for someone in your situation, not unusual or luxury items.
How Long Does It Take to File for Child Support in California?
The honest answer is that it depends. The pace is shaped by service, paperwork quality, and whether income or parentage is disputed.
For a family court motion, the clock runs backward from your hearing date. Once you file FL-300, the court assigns a hearing date. In many California counties, hearings are set several weeks to a few months out, depending on how busy the court is, so there is no single “standard” wait time for everyone.
Personal service must be completed at least 16 court days before that date, and proof of service must be filed at least 5 court days out. Miss those windows, and the hearing may need to be rescheduled.
For LCSA cases, the timeline depends on how easily the other parent can be located and served, whether parentage needs to be established, and whether the other parent contests the order. Cases where the other parent is hard to locate, disputes parentage, or has variable income naturally take longer.
There are some aspects you can control to help minimize the timeframe, including clean paperwork, fast service, and solid financial documentation.
An incomplete Income and Expense Declaration or a service error can push a hearing back by weeks.
Talk to a California Child Support Attorney in Los Angeles
Child support cases carry real weight. Whether you’re trying to make sure your child’s needs are actually being met, or you’re responding to a request and want the numbers to reflect what’s really going on in your life, the stakes feel personal — because they are.
At Provinziano & Associates, we work with both parents through child support matters across California, including Los Angeles and the surrounding areas. That means we’ve seen what happens when income is complicated — self-employment, commissions, bonuses, or a parent who stepped back from work to raise the kids — and we know how to put the full picture in front of a judge clearly and credibly.
If you’re ready to talk through your situation, we’re here. Schedule a case evaluation with our team.
FAQs: How to File for Child Support in California
Do I have to go through LCSA to file for child support in California?
No. You can file for child support directly in family court, either inside an existing case or by starting a parentage, divorce, or separation case. LCSA is one path, not the only path. The agency works well when there’s no existing case, when you want long-term enforcement help, or when locating the other parent is the first challenge.
Can parents agree on child support without going to court?
Sometimes. Parents can negotiate an amount and submit a written stipulation for a judge to sign. Even if you agree, the judge must still approve the order, and the amount is usually compared to California’s statewide guideline.
However, if your case involves the LCSA, the agency will usually need to be involved in any agreed change to support, and the court still has to approve the new order. An agreed amount that deviates from the California statewide guideline also requires specific court findings before a judge will approve it.
What happens if child support isn’t paid in California?
Unpaid support becomes arrears and accrues interest at 10% per year. Enforcement tools include wage withholding, bank levies, and liens on property.
If the court finds that the non-payment is willful and a valid order exists, the judge can use contempt of court. Contempt is a serious proceeding that can lead to fines, community service, and even jail time, and the court may treat each missed payment as a separate violation.
Can I file for child support while pregnant in California?
Yes. Under California Family Code Section 7633, a parentage action can be filed and a judgment entered before birth, though enforcement is stayed until the child is born.
Under Family Code Section 7637, the court can also order a parent to pay reasonable pregnancy and confinement expenses — a separate category from ongoing child support that must be specifically requested.
