Florida Custody Laws for Unmarried Parents: Paternity and Time-Sharing

In Florida, custody laws treat unmarried parents very differently depending on whether paternity has been legally established. Until it is, the mother is the sole natural guardian and has exclusive authority over the child, even if the father is named on the birth certificate.¹ Once paternity is established, Florida treats unmarried parents the same as divorcing parents: the court applies a best-interest-of-the-child analysis, presumes shared decision-making, and starts from a rebuttable presumption of equal time-sharing.² One vocabulary note that trips people up: Florida’s statutes do not use “custody” or “visitation.” Decision-making is called parental responsibility, and the schedule of nights with each parent is called time-sharing.

Why Paternity Comes First for Unmarried Fathers

Nothing else on this page matters for an unmarried father until paternity is legally established. Before that point, he cannot petition for time-sharing, cannot object to a move, and cannot make medical or school decisions. The mother holds all of it.¹ Signing the birth certificate at the hospital does not, on its own, do the job. There are two ways to fix that.

Voluntary Acknowledgment of Paternity

The quicker path is a signed acknowledgment. At the hospital, both parents can sign a DH-511 form in front of a notary the hospital provides. After discharge, and any time before the child turns 18, they can sign a DH-432 form, either witnessed by two people or notarized.³ Either form creates a legal presumption of paternity once it is submitted.

Watch the rescission window. Either parent can rescind a voluntary acknowledgment within 60 days of signing, or before any court or administrative proceeding involving the child, whichever comes first. After that, the acknowledgment becomes a legal establishment of paternity and can only be undone by proving fraud, duress, or a genuine factual mistake.⁴

Petition to Determine Paternity

When parents disagree, or the mother refuses to sign, the father, the mother, or the child can file a petition in circuit court to establish paternity.⁵ The court can order genetic testing. Results showing 95 percent or higher probability create a rebuttable presumption the man is the father; testing that excludes him ends the case.⁶

Once paternity is established either way, the father becomes a natural guardian with the same rights and responsibilities as the mother, and either parent can then ask the court to enter a parenting plan, set time-sharing, and order child support.¹⁵

Decision-Making Rights After Paternity

Florida draws a hard line between two ideas parents often blur. Parental responsibility governs the major decisions in a child’s life: education, healthcare, religious upbringing. Time-sharing governs the physical schedule.

The law presumes both parents share parental responsibility, meaning they must confer and agree on the big decisions. Sole parental responsibility is only awarded when the court finds shared responsibility would be detrimental to the child, and that requires specific evidence of harm, not just parental conflict.²

The Equal Time-Sharing Presumption

Florida law presumes, as a starting point, that equal time-sharing (a roughly 50/50 schedule) is in the child’s best interest. To move off that starting point, a parent must prove by a preponderance of the evidence that equal time-sharing would not serve the child.² Common reasons the presumption gets overcome include a work schedule that makes equal overnights unworkable, significant distance between the parents’ homes, an infant or young child with an established routine tied to one primary caregiver, and evidence that one parent has been uninvolved in day-to-day care.

The presumption is not a guarantee of 50/50. It sets the default. Whatever the final schedule ends up being, it gets written into the parenting plan and becomes a binding court order.

How the Court Decides What Is Best for the Child

Everything about parental responsibility and time-sharing runs through Florida Statute 61.13(3), which directs the court to weigh a long list of factors specific to each family.² In practice, the factors that tend to matter most are:

Each parent’s willingness to encourage the child’s relationship with the other parent and honor the schedule.
Which parent has historically handled daily tasks like meals, homework, doctor visits, and school drop-offs.
The child’s stability and continuity in their current home, school, and community.
Each parent’s physical health, mental health, and moral fitness.
Whether the geographic distance between the homes makes the proposed schedule realistic, particularly for a school-age child.
Each parent’s actual knowledge of the child’s friends, teachers, doctors, and routines.
The child’s own preference, if the court finds the child mature enough to express one.

No single factor decides the case. A parent who has been the primary caretaker holds a real practical advantage because stability counts, but that advantage can be outweighed by the rest of the picture.

What Has To Be In the Parenting Plan

Every case involving parental responsibility and time-sharing requires a written parenting plan approved by the court. It is not optional. At minimum, the plan has to cover:²

How the parents will share day-to-day parenting tasks.
The specific overnight schedule, including holidays, school breaks, and birthdays.
Which parent is responsible for healthcare decisions and school-related matters, including the address used for school enrollment.
How the parents and child will communicate (phone, video, text) during the other parent’s time.
Where pickups and drop-offs will happen. The court can order a neutral safe-exchange location where there is a risk of harm.

Parents who agree can draft and submit their own plan, and the court will generally approve it if it fits the child’s best interests. Parents who cannot agree get a plan written for them after the court hears evidence.

Child Support Applies the Same Way

Marital status does not change child support. Florida uses an income-shares model under Statute 61.30 that combines both parents’ net incomes, runs them through the guidelines table, and produces a basic support obligation split in proportion to income.⁷ Health insurance premiums for the child and work-related childcare are added on before the split.

A misunderstanding worth clearing up: equal time-sharing does not zero out support. When each parent has a substantial number of overnights, the statute adjusts the calculation, but if one parent earns significantly more than the other, that parent will still owe support even on a true 50/50 schedule.⁷ The court can deviate from the guideline figure by up to 5 percent based on the child’s needs and each parent’s finances, and can go beyond that only with a written explanation of why the standard amount would be unjust.

Moving More Than 50 Miles With the Child

Once there is a court order in place, a parent who wants to move more than 50 miles from their home at the time of that order, for at least 60 consecutive days, and take the child along, has to follow Florida’s relocation statute.⁸ Vacations and short absences for education or medical care do not count.

The relocating parent files a sworn petition with the new address, the planned move date, the specific reasons (attaching any written job offer), and a proposed revised time-sharing schedule with transportation arrangements. The other parent has 20 days after service to file a written objection. If no objection is filed on time, the court can allow the move without a hearing.⁸

If the other parent objects, the parent who wants to move has to prove the relocation serves the child’s best interests. If they meet that burden, it shifts to the objecting parent to show it does not. Moving with the child first and asking the court later is a serious mistake; the court can draw a negative inference and order the child returned.

Changing a Parenting Plan Later

Florida allows modifications, but the parent asking for the change has to prove two things: a substantial and material change in circumstances since the last order, and that the proposed modification serves the child’s best interests.² The change must be something that was not reasonably anticipated when the existing order was entered. A job transfer to another city, a child developing serious medical needs, or a major shift in one parent’s ability to care for the child can all qualify. General dissatisfaction with the schedule usually does not.

One specific scenario the statute addresses: if the parents lived more than 50 miles apart when the last order was entered and one later moves within 50 miles of the other, that move alone can qualify as a substantial change for purposes of modifying time-sharing.⁹

When Domestic Violence Is In the Picture

Domestic violence changes the analysis. In deciding whether shared parental responsibility would harm the child, the court considers evidence of domestic violence, whether either parent had reasonable cause to believe they or the child were in danger, and whether the child has been at risk of abuse, abandonment, or neglect.²

A first-degree misdemeanor or higher conviction for domestic violence triggers a rebuttable presumption that shared parental responsibility is detrimental to the child. If the convicted parent cannot overcome it, the court will deny shared parental responsibility and shared time-sharing, though child support is still owed.⁹ Even without a conviction, the court must weigh any evidence of domestic violence or child abuse in the best-interest analysis.

1
Florida Senate. Florida Statutes 744.301 – Natural Guardians
2
Florida Senate. Florida Statutes 61.13 – Support of Children; Parenting and Time-Sharing; Powers of Court
3
Florida Department of Revenue. Paternity
4
The Florida Legislature. Florida Statutes 742.10 – Establishment of Paternity for Children Born Out of Wedlock
5
Florida Senate. Florida Statutes 742.011 – Proceedings for Determination of Paternity, Rights, and Responsibilities; Jurisdiction
6
Florida Senate. Florida Statutes 742.12 – Scientific Testing to Determine Paternity
7
Florida Senate. Florida Statutes 61.30 – Child Support Guidelines; Retroactive Child Support
8
The Florida Legislature. Florida Statutes 61.13001 – Parental Relocation With a Child
9
The Florida Legislature. Florida Statutes 61.13 – Support of Children; Parenting and Time-Sharing; Powers of Court