Florida Paternity: Establishing Legal Fatherhood
Chapter 742 governs paternity for children born out of wedlock. Section 742.10 establishes paternity by judicial adjudication, a voluntary acknowledgment, or an administrative order. A signed voluntary acknowledgment becomes an establishment of paternity and after 60 days is challengeable only for fraud, duress, or material mistake of fact.
By Find Local Law Editorial Team · Last reviewed: May 26, 2026
Researched and drafted with AI assistance and verified against primary sources (statutes, Judicial Council forms, and official court websites). This is general information, not legal advice.
This is general information, not legal advice. Talk to a Florida attorney about how these rules apply to your situation.
In Florida, Chapter 742 governs paternity for children born out of wedlock — the legal process of establishing who a child’s father is.
Three ways to establish paternity
Under Fla. Stat. § 742.10, paternity can be established by:
- Judicial adjudication — a court order in a paternity case;
- A voluntary acknowledgment of paternity signed by the parents; or
- An administrative order through the Department of Revenue.
Voluntary acknowledgment and the 60-day window
A signed voluntary acknowledgment becomes an establishment of paternity. After 60 days, it can be challenged only on the basis of fraud, duress, or a material mistake of fact — a narrow window, so it’s worth being sure before signing.
Paternity alone isn’t enough
Establishing paternity does not by itself set parental responsibility, time-sharing, or child support. Those require a separate action — so confirming legal fatherhood is usually the first step, not the last. To get matched with a local Florida family-law attorney, connect with a lawyer.
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Start your free intakeFrequently asked questions
- How is paternity established in Florida?
- Three ways under Fla. Stat. § 742.10: by judicial adjudication, by a voluntary acknowledgment of paternity, or by an administrative order from the Department of Revenue.
- Can a voluntary acknowledgment be undone?
- A signed voluntary acknowledgment becomes an establishment of paternity. After 60 days, it can be challenged only on the basis of fraud, duress, or material mistake of fact (Fla. Stat. § 742.10).
- Does establishing paternity give me time-sharing or set support?
- Not by itself. Establishing paternity does not automatically set parental responsibility, time-sharing, or child support — those require a separate action (Fla. Stat. § 742.10).
Sources
Related guides
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