Child support in Florida

Florida uses the income-shares model: both parents' incomes count, and each parent pays a share of the child's support. To open a case, contact the Florida Department of Revenue, Child Support Program at 850-488-5437.

Florida Department of Revenue, Child Support ProgramCall 850-488-5437Apply onlineAgency website

Checked against official sources: Oct 25, 2026. · Free letters and checklist ↓

How much child support in Florida?

The parents' monthly net incomes are added together and looked up in the guidelines schedule in the statute. Each parent pays a share based on their percentage of the combined income, plus shares of child care and the child's health insurance and medical costs. If each parent has the child at least 20% of overnights, a special time-sharing formula is used.

Law: Fla. Stat. 61.30

We don't estimate Florida's amount here: its formula uses both parents' incomes and other facts, and a home-made number could mislead you. The official tool gives the real starting number:

Official Florida child support worksheet

Open a child support case in Florida

Agency
Florida Department of Revenue, Child Support Program
Phone
850-488-5437 (850-488-KIDS)
Apply
Apply online
How to open a case

Sign up for services with the Department of Revenue online or by phone. The Child Support Program can establish paternity and a child and medical support order, even if the other parent lives in another state. You can also file your own petition for support in circuit court. Every petition must include a financial affidavit.

Law: Fla. Stat. 61.30(14)

Application fee

$0. The federal application fee is $1, but Florida law waives it for all applicants and the Department pays it.

Law: Fla. Stat. 409.2567(1)(a)

Yearly fee

The $35 annual federal fee for families who never received temporary cash assistance is paid by the Department, not by you.

Law: Fla. Stat. 409.2567(1)(a)

Forms
Paternity (legal fatherhood)

Unmarried parents can sign the Paternity Acknowledgment (DH-511) at the hospital, or the Acknowledgment of Paternity (DH-432) any time before the child turns 18. Parents who marry later can use form DH-743A. The Child Support Program can also order genetic testing.

Checklist: what to bring to open a case

Florida child support by topic

How support is calculated in Florida

The model, the percentages or the official calculator, and low-income rules.

Change child support in Florida

When you can ask, how to ask, and a review letter.

Collect unpaid support in Florida

Collection tools, interest and license rules, and a letter.

When support ends in Florida

The end age, high school and disability rules.

How child support is figured in Florida

Model
Income shares
How it works

The parents' monthly net incomes are added together and looked up in the guidelines schedule in the statute. Each parent pays a share based on their percentage of the combined income, plus shares of child care and the child's health insurance and medical costs. If each parent has the child at least 20% of overnights, a special time-sharing formula is used.

Low income

If the paying parent's net income is below the schedule, the court sets an amount case by case. The payment is the lesser of the parent's share and 90% of the difference between their monthly net income and the federal poverty guideline for one person. The judge may move up to 5% from the guideline amount; more than 5% needs written reasons.

Law: Fla. Stat. 61.30(6)(a); Fla. Stat. 61.30(1)(a)

Official calculator
Official Florida child support worksheet
Health insurance and medical costs

Every support order must provide health insurance for the child when it is reasonable in cost and accessible. It is presumed reasonable if adding the child costs no more than 5% of the parent's gross income. Uncovered medical, dental and prescription costs are shared.

Law: Fla. Stat. 61.13(1)(b); 61.30(8)

Change a child support order in Florida

When a change is allowed

The change must usually be substantial, permanent and involuntary. In court, the guideline amount must differ from the current order by at least 15% or $50, whichever is greater. When the Department reviews an order (the Department says: more than 3 years since it was issued, reviewed or changed), a difference of at least 10% and at least $25 is enough, with no need to prove a change in circumstances.

Law: Fla. Stat. 61.30(1)(b); Fla. Stat. 61.30(1)(c)

How to ask

Either parent with a case can ask the Child Support Program to review the order. Or file a Supplemental Petition for Modification of Child Support in circuit court with a financial affidavit. Until the order is changed, the old amount is still owed.

Law: Form 12.905(b)

Forms

Law: Fla. Stat. 61.30(1)(b)-(c); 61.14

Can I ask for a change? Check your situation

Florida's rule: The change must usually be substantial, permanent and involuntary. In court, the guideline amount must differ from the current order by at least 15% or $50, whichever is greater. When the Department reviews an order (the Department says: more than 3 years since it was issued, reviewed or changed), a difference of at least 10% and at least $25 is enough, with no need to prove a change in circumstances.

Law: Fla. Stat. 61.30(1)(b); Fla. Stat. 61.30(1)(c); Fla. Stat. 61.30(1)(b)-(c); 61.14

Until a new order is made, the current amount is still owed. A change can count only from the date the other parent gets notice of your request, so ask soon.

Law: 42 U.S.C. 666(a)(9)

How to ask in Florida: Either parent with a case can ask the Child Support Program to review the order. Or file a Supplemental Petition for Modification of Child Support in circuit court with a financial affidavit. Until the order is changed, the old amount is still owed.

Ask the agency to review (change) your order

Collect unpaid child support in Florida

Arrears means support that is past due. The child support agency can use these tools to collect it:

Collection tools
  • Income withholding
  • Driver's license and vehicle registration suspension
  • Professional and recreational license suspension
  • Passport denial
  • Federal tax refund intercept
  • Liens on motor vehicles and boats
  • Bank account levy
  • Collection from insurance settlements and workers' compensation
  • Credit bureau reporting
  • Judgment by operation of law
  • Court action, including contempt
License suspension

The agency may send a notice of intent to suspend once a payment is 15 days late. You then have 20 days to pay, sign a payment agreement or contest it, or the license is suspended.

Law: Fla. Stat. 61.13016

Contempt of court

The Child Support Program can take a parent to court for nonpayment. Outcomes can include payment of past-due support, contempt of court, a work search or job training.

Interest on unpaid support

Unpaid support can become a final judgment by operation of law. The depository charges interest on support judgments at the statutory judgment rate set under Fla. Stat. 55.03.

Law: Fla. Stat. 61.14(6)(d)

Law: Fla. Stat. 61.13016; 61.14(6)

Ask the agency to collect unpaid support

When child support ends in Florida

Support ends

18, or up to 19 if the child is still in high school, dependent, and expected to graduate before 19

Exceptions

A court can order support past 18 for a child whose mental or physical incapacity began before age 18.

Law: Fla. Stat. 743.07(2); 61.30(1)(a)

When does support end? Check your situation

Florida's rule: 18, or up to 19 if the child is still in high school, dependent, and expected to graduate before 19

Law: Fla. Stat. 743.07(2); 61.30(1)(a)

Your own order may set a different end date, for example when the parents agreed to one. Read it.

Free help in Florida

Official self-help

Free letters and checklist

Ask the agency to review (change) your order

A letter to the child support agency asking for a review and adjustment.

Ask the agency to collect unpaid support

A letter asking the agency to enforce the order and collect what is past due.

Checklist: what to bring to open a case

IDs, birth certificates, the other parent's details and your papers, with Florida's agency contact.

Good to know in Florida

  • Retroactive support in a first order can reach back up to 24 months before the petition was filed (Fla. Stat. 61.30(17)).
  • If income information is missing, the court presumes the parent earns the median income of full-time workers (Fla. Stat. 61.30(2)(b)).
  • A parent who has the child at least 20% of overnights gets a time-sharing adjustment (Fla. Stat. 61.30(11)(b)).

Federal rules in every state

  • Applying. If you don't get TANF, Medicaid or foster care help, a state may charge an application fee of up to $25 to open a child support case. Law: 42 U.S.C. 654(6)(B)(i)
  • Yearly fee. If you never got TANF and the agency collected at least $550 for you in a year, the state charges a $35 yearly fee. It can come out of your support, but never out of the first $550. Law: 42 U.S.C. 654(6)(B)(ii)
  • Review every 3 years. If your case is with the child support agency, either parent can ask it to review the order every 3 years and adjust it to the guidelines. Law: 42 U.S.C. 666(a)(10)(A); 45 CFR 303.8
  • Past-due support. Each unpaid payment becomes a judgment on the day it is due. It can't be lowered later, except back to the date the other parent got notice of a request to change the order. Law: 42 U.S.C. 666(a)(9)
  • Tax refunds. The federal government can take a federal tax refund to pay past-due child support. Law: 42 U.S.C. 664
  • Passports. A parent who owes more than $2,500 in past-due support can be refused a passport. Law: 42 U.S.C. 652(k)
  • Pay withholding limit. For support, up to 50% of take-home pay can be withheld if the parent supports another spouse or child, or 60% if not. It is 55% or 65% when support is more than 12 weeks behind. Law: 15 U.S.C. 1673(b)
  • How long support lasts. How long support lasts follows the law of the state that made the order, even if you move. Law: 28 U.S.C. 1738B(h)(2)

Questions about child support in Florida

How is child support calculated in Florida?

The parents' monthly net incomes are added together and looked up in the guidelines schedule in the statute. Each parent pays a share based on their percentage of the combined income, plus shares of child care and the child's health insurance and medical costs. If each parent has the child at least 20% of overnights, a special time-sharing formula is used.

What if the paying parent has a low income in Florida?

If the paying parent's net income is below the schedule, the court sets an amount case by case. The payment is the lesser of the parent's share and 90% of the difference between their monthly net income and the federal poverty guideline for one person. The judge may move up to 5% from the guideline amount; more than 5% needs written reasons.

How do I apply for child support in Florida?

Sign up for services with the Department of Revenue online or by phone. The Child Support Program can establish paternity and a child and medical support order, even if the other parent lives in another state. You can also file your own petition for support in circuit court. Every petition must include a financial affidavit.

Does it cost money to open a child support case in Florida?

$0. The federal application fee is $1, but Florida law waives it for all applicants and the Department pays it.

Is there a yearly fee for child support services in Florida?

The $35 annual federal fee for families who never received temporary cash assistance is paid by the Department, not by you.

When can child support be changed in Florida?

The change must usually be substantial, permanent and involuntary. In court, the guideline amount must differ from the current order by at least 15% or $50, whichever is greater. When the Department reviews an order (the Department says: more than 3 years since it was issued, reviewed or changed), a difference of at least 10% and at least $25 is enough, with no need to prove a change in circumstances.

How do I ask to change child support in Florida?

Either parent with a case can ask the Child Support Program to review the order. Or file a Supplemental Petition for Modification of Child Support in circuit court with a financial affidavit. Until the order is changed, the old amount is still owed.

What happens if child support is not paid in Florida?

Arrears means support that is past due. The child support agency can use these tools to collect it: Income withholding; Driver's license and vehicle registration suspension; Professional and recreational license suspension; Passport denial; Federal tax refund intercept; Liens on motor vehicles and boats; Bank account levy; Collection from insurance settlements and workers' compensation; Credit bureau reporting; Judgment by operation of law; Court action, including contempt.

Can a license be suspended for unpaid child support in Florida?

The agency may send a notice of intent to suspend once a payment is 15 days late. You then have 20 days to pay, sign a payment agreement or contest it, or the license is suspended.

Can a parent be held in contempt for not paying in Florida?

The Child Support Program can take a parent to court for nonpayment. Outcomes can include payment of past-due support, contempt of court, a work search or job training.

Is there interest on unpaid child support in Florida?

Unpaid support can become a final judgment by operation of law. The depository charges interest on support judgments at the statutory judgment rate set under Fla. Stat. 55.03.

When does child support end in Florida?

18, or up to 19 if the child is still in high school, dependent, and expected to graduate before 19

Does child support continue while my child finishes high school in Florida?

18, or up to 19 if the child is still in high school, dependent, and expected to graduate before 19

Can child support continue past the usual age in Florida?

A court can order support past 18 for a child whose mental or physical incapacity began before age 18.

How is paternity established in Florida?

Unmarried parents can sign the Paternity Acknowledgment (DH-511) at the hospital, or the Acknowledgment of Paternity (DH-432) any time before the child turns 18. Parents who marry later can use form DH-743A. The Child Support Program can also order genetic testing.

Who pays for the child's health insurance in Florida?

Every support order must provide health insurance for the child when it is reasonable in cost and accessible. It is presumed reasonable if adding the child costs no more than 5% of the parent's gross income. Uncovered medical, dental and prescription costs are shared.

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