Florida Paternity Attorney

By Nadia Pazos, Florida Family Law Attorney · AV Preeminent · 4.6★ Google (56 reviews)

Paternity in Florida decides a child’s legal father — and with it, time-sharing, decision-making, and child support. Pazos Law Group represents mothers and fathers across Miami-Dade and South Florida in establishing, defending, and disestablishing paternity under Fla. Stat. Chapter 742.

Why Paternity Matters in Florida

When a child is born to unmarried parents in Florida, the mother is the natural guardian and has sole legal custody until a court establishes paternity. Until that happens, the biological father — even one named on the birth certificate — has no automatic right to time-sharing or decision-making. Establishing paternity is the legal step that converts a biological connection into enforceable parental rights and responsibilities.

Paternity cuts both ways. For a father, it is the gateway to a parenting plan and a relationship the court will protect. For a mother, it is the gateway to a child support order. And for the child, it secures rights to support, inheritance, Social Security and veterans’ benefits, and a complete medical history.

How Paternity Is Established in Florida

Florida law (Chapter 742) recognizes several routes:

• Marriage — a child born to a married couple is presumed the husband’s child.
• Voluntary Acknowledgment of Paternity — both parents sign a sworn affidavit, often at the hospital. Under Fla. Stat. § 742.10, it creates a rebuttable presumption that becomes binding after 60 days, absent fraud, duress, or material mistake of fact.
• Administrative order — through the Florida Department of Revenue, frequently alongside a child support case.
• Court action — a paternity lawsuit under Chapter 742, which can also set time-sharing and support in the same case.

A paternity action can be filed by the mother, the man who believes he is the father, the child (through a representative), or the Department of Revenue. Establishing paternity in a court action is often the strongest route for a father, because it lets the judge enter a parenting plan and time-sharing schedule at the same time — something a hospital affidavit alone does not do.

DNA Testing

When paternity is disputed, the court can order scientific (DNA) testing under Fla. Stat. § 742.12. Results showing a 95% or greater probability of paternity create a rebuttable presumption. Testing is straightforward, but the legal consequences are not — which is why genetic results are usually only the beginning of the case, not the end.

Time-Sharing, Support, and the Parenting Plan

Once paternity is established, the same best-interest framework that governs divorce custody applies. The court enters a parenting plan addressing parental responsibility and a time-sharing schedule under Fla. Stat. § 61.13, and it sets child support using the income-shares guidelines of Fla. Stat. § 61.30. You can estimate support with our Florida Child Support Calculator, and read how schedules are decided in our child custody and time-sharing guide.

Disestablishing Paternity

Florida also allows a man to disestablish paternity and terminate a child support obligation in limited circumstances under Fla. Stat. § 742.18 — generally where newly discovered genetic evidence shows he is not the biological father and he has not, for example, adopted the child, prevented testing, or acknowledged paternity after learning he was not the father. The statute is strict and time-sensitive, and relief is limited to future support; it does not refund past payments. These cases turn on precise facts and deadlines, so early advice matters.

Frequently Asked Questions

Does signing the birth certificate establish paternity in Florida?

Signing a birth certificate is not the same as a legal paternity determination. A father typically must also sign a Voluntary Acknowledgment of Paternity, obtain an administrative order, or establish paternity through a court action to gain enforceable time-sharing rights.

Can an unmarried father get time-sharing in Florida?

Yes, but first he must establish paternity. Until paternity is legally established, an unmarried mother has sole legal custody, and the father has no automatic right to time-sharing or decision-making.

How long does a father have to challenge a paternity affidavit?

Under Fla. Stat. § 742.10, a signed Voluntary Acknowledgment of Paternity can generally be rescinded within 60 days. After 60 days it becomes binding and can only be challenged on narrow grounds such as fraud, duress, or material mistake of fact.

Can I stop paying child support if the child is not mine?

Possibly, through a disestablishment action under Fla. Stat. § 742.18, but only if strict statutory conditions are met — including newly discovered genetic evidence and that you did not engage in conduct that bars relief. It ends future support only; it does not recover past payments.

Pazos Law Group handles paternity alongside related matters — see our child custody practice and connect with a Miami family law attorney.

This page is general legal information, not legal advice, and does not create an attorney-client relationship with Pazos Law Group. Florida law changes over time; consult a licensed Florida attorney about your specific situation.