Where to file and what to expect
You file for child support in the family court of the county where the child lives, or sometimes where the other parent lives. You cannot file in federal court or through a private attorney's office — the court itself handles this. The process is free or costs very little (usually under $300 in filing fees, sometimes waived if you cannot pay).
The court will send papers to the other parent, hold a hearing if they contest the amount, and issue a child support order that says how much they must pay each month. The order is legally binding. If the other parent does not pay, you can ask the court to enforce it — they can garnish wages, suspend a driver's license, or hold the parent in contempt.
The whole process typically takes two to six months from filing to a final order, though it can be faster if the other parent agrees to the amount upfront. During that time, you may be able to request temporary support while the case is pending.
Key Takeaways
- File in family court in the county where your child lives, or where the other parent lives if the child is not in your state.
- You will need the other parent's full legal name, date of birth, Social Security number, and current address to start the case.
- The court calculates support using state guidelines based on both parents' income, custody time, and number of children — not on what you ask for.
- If you receive TANF or SNAP benefits, your state's child support agency may file the case for you at no cost as part of your benefits.
- You can file on your own without a lawyer, though some courts offer free help from court staff or legal aid organizations.
Documents you need before you file
Gather these items before you walk into the courthouse or submit an online application. Missing documents will delay your case.
| What you need | Why the court needs it |
|---|---|
| Other parent's full legal name, date of birth, and Social Security number | To locate them and serve papers; to run a background check and find income records |
| Other parent's current address or last known address | To send them the court papers; if you do not know it, the court can help locate them |
| Child's birth certificate | To prove the child's age and that you are the parent or legal guardian |
| Your income documents (pay stubs, tax returns, or proof of benefits) | To calculate your income for the support order |
| Other parent's income documents if you have them | To show the court what they earn; the court will also subpoena their employer |
| Proof of custody or living arrangement (lease, school records, or doctor's letter) | To show where the child lives and how much time each parent spends with them |
If you do not have the other parent's Social Security number or current address, tell the court that when you file. The court has access to databases (wage records, driver's license files, tax records) that can locate them. This may add a few weeks to the timeline.
How to start the case: three routes
Route 1: Through your state's child support agency (fastest if you receive benefits). If you get TANF, SNAP, or Medicaid, your state's child support office can file the case for you at no cost. Call your local child support office or visit your state's child support website. They will take your information, locate the other parent, and file in court. You do not pay filing fees. This route is free but slower — it can take three to six months because the agency handles many cases.
Route 2: File directly at the family court courthouse. Walk into the family court clerk's office in your county with your documents and ask for a child support petition form (the name varies by state — it may be called a "Complaint for Child Support" or "Petition for Support"). Fill it out there or at home, return it with your filing fee, and the clerk will file it. The court will then send papers to the other parent. This route is faster — usually one to three months — but you pay the filing fee upfront.
Route 3: File online through your state court system. Many states now let you file child support petitions online through their court website. Search "[your state] family court online filing" to see if your county offers this. You upload your documents, pay the fee by credit card, and the court processes it. This is the fastest route — the case is filed within days — but you still pay the fee and you must have all documents ready before you start.
What happens after you file
Once the court receives your petition, the clerk will assign a case number and schedule a hearing date. The court will send a copy of your petition and a summons to the other parent, usually by certified mail or through a process server. The other parent has a set number of days (typically 20 to 30) to respond.
If the other parent does not respond or does not show up to the hearing, the judge can enter a default order — a child support order based on what you asked for and what the court calculates under state guidelines. If they do respond and disagree with the amount, both of you will go to a hearing where you present your income and the judge decides.
At the hearing, bring your pay stubs, tax returns, and any proof of income or expenses. Bring proof of custody or how much time the child spends with each parent. The judge will apply your state's child support formula (which weighs both parents' income, custody time, and the number of children) and issue an order. This order is final unless one parent asks for a modification later.
If you cannot afford a lawyer
You do not need a lawyer to file for child support — the court process is designed for people to do it themselves. However, free or low-cost legal help is available in most places.
Legal aid organizations in your county offer free representation if your income is below a certain threshold (usually 125% to 200% of the federal poverty line). Search "legal aid [your state]" or call 211 to find the office nearest you. They can represent you at the hearing or help you prepare.
Court-appointed mediators or family court facilitators are free staff at many courthouses who help you fill out forms and explain the process. Ask the clerk when you file whether your court has this service.
Law school clinics in your area may offer free consultations or limited representation. Call the nearest law school and ask if they have a family law clinic.
If the other parent lives in a different state
If the child lives in one state and the other parent lives in another, you still file in the state where the child lives. The court will use a federal law called the Uniform Interstate Family Support Act (UIFSA) to enforce the order across state lines.
When you file, tell the court the other parent's state of residence. The court will send the case to that state's child support agency, which will locate the other parent and enforce payment. This takes longer — usually four to eight months — because two states are involved, but the process is the same and the order is enforceable in both states.
If you are not sure where the other parent lives, the court can help locate them using interstate databases. This may add time to the case, but it does not stop you from filing.
Frequently Asked Questions
Do I need the other parent's permission to file?
No. You can file without their knowledge or consent. The court will notify them after you file, and they will have a chance to respond or go to the hearing. Filing does not require agreement from the other parent.
What if I do not know the other parent's Social Security number or address?
Tell the court when you file. The court has access to wage records, tax records, and driver's license databases that can locate someone. This may add two to four weeks to the timeline, but it does not stop the case. The court will keep trying to locate them.
Can I file if I am not married to the other parent?
Yes. Child support is separate from marriage. If you have a child with someone you were never married to, you can file for support the same way. If paternity has not been established, the court may require a paternity test or acknowledgment before setting support, which adds a step but not much time.
What if the other parent agrees to pay without going to court?
A verbal agreement is not enforceable. You still need a court order. If the other parent agrees to an amount, you can file and ask the judge to approve the agreement — this is called a "stipulated order" and is usually granted quickly. This is faster than a contested hearing and still gives you a legal order you can enforce if they stop paying later.
How much will I have to pay in filing fees?
Filing fees vary by state and county, typically ranging from $50 to $300. Many courts waive or reduce the fee if you cannot pay. Ask the clerk about a fee waiver when you file. If you file through your state's child support agency, there is no fee.