FL Drops 'Unanticipated' Rule for Time-Sharing Changes

The short answer

Florida amended F.S. 61.13 so a parent no longer has to prove a change in circumstances was "unanticipated" to modify a time-sharing schedule. The old test required a substantial, material, and unanticipated change. Dropping that third word lowers the bar to revisit a parenting plan, though the change still must serve the child's best interests.

The news hook

For decades, a Florida parent who wanted to change a court-ordered time-sharing schedule faced one of the toughest standards in family law. Under long-settled case law, the parent had to show a change in circumstances that was substantial, material, and unanticipated at the time of the original judgment, and then also show that a modification was in the child's best interests.

That middle phrase, "unanticipated," did a lot of quiet work. Judges used it to turn away parents whose situations had genuinely changed, on the theory that the change was foreseeable back when the plan was entered. A parent who took a promotion, remarried, or watched a co-parent's work schedule shift could be told the court could have predicted it, so it did not count.

A 2025 amendment to F.S. 61.13, effective July 1, 2025 and carrying into 2026 cases, removed the "unanticipated" requirement from the modification standard. The statute now speaks of a substantial and material change in circumstances, without demanding that the change also have been unforeseeable. Florida family law commentators have flagged this as one of the more consequential parenting-plan changes in recent memory.

Legal implications for Florida cases

Modification of time-sharing in Florida is governed by F.S. 61.13, the same statute that governs the creation of parenting plans and time-sharing schedules in the first place. The modification standard has always been higher than the standard for setting the original plan, and for good reason. Courts value stability for children and do not want parenting plans relitigated every time a parent is unhappy.

The practical effect of removing "unanticipated" is narrow but real. It does not open the door to casual do-overs. A parent still must clear two hurdles:

• A substantial and material change in circumstances since the last order.
• A showing that changing the schedule is in the child's best interests under the F.S. 61.13(3) factors.

What changes is that the parent no longer has to also survive an argument that the change was predictable. Consider a co-parent who relocates across the county for work, a child whose school or medical needs shift, or a parent whose recovery from a health or substance issue is now well documented. Under the old rule, opposing counsel could argue any of these was foreseeable. That defense is now largely gone.

This fits a broader arc of Florida reform. The 2023 overhaul that produced the alimony changes in SB 1416 arrived alongside a separate change to F.S. 61.13 creating a rebuttable presumption that equal, 50/50 time-sharing is in the best interests of the child. Reading the 2023 equal-time presumption together with the 2025 removal of "unanticipated," the Legislature has been steadily reshaping how Florida courts approach parenting time.

Florida-specific analysis

A few points matter for how this plays out in Florida courtrooms.

First, terminology. Florida abolished the words "custody" and "visitation" back in 2008. Under F.S. 61.046 and 61.13, the operative concepts are time-sharing and the parenting plan. If you read national coverage using "custody modification," translate it to Florida's time-sharing framework.

Second, the best-interests analysis is untouched. Removing "unanticipated" did not soften the F.S. 61.13(3) factors, which cover everything from each parent's capacity to honor the schedule, to the child's home and school stability, to the moral fitness and mental and physical health of the parties. A parent who clears the lower change-in-circumstances threshold still has to prove the modification actually helps the child.

Third, the equal time-sharing presumption is the backdrop. Because Florida now presumes 50/50 is best absent a reason otherwise, a modification fight is often really a fight over whether the current split should move toward or away from equal time. The 2025 change makes it modestly easier to get that question back in front of a judge.

Fourth, this is a post-judgment issue, not a divorce issue. Modification actions happen after a final judgment is already in place. For couples who are still getting divorced, the more useful lesson is on the front end, discussed below.

For readers following the Legislature closely, this is one of the few 2025 to 2026 changes that actually took effect. Several higher-profile bills did not. Our coverage of the Florida weekend-judge time-sharing enforcement bill, HB 971 and the SB 1128 time-sharing enforcement measure both explain bills that died rather than became law. The removal of "unanticipated" is the real, enacted change.

Practical takeaways for Florida residents

If you already have a Florida parenting plan:

• A genuine, significant change in your life or your child's life may now support a modification even if a lawyer once told you the change was too foreseeable to try.
• The bar is lower, not gone. You still need a substantial and material change plus a best-interests showing. Minor scheduling annoyances will not qualify.
• Document the change. Dates, school records, work schedules, and communications make or break these cases.

If you are getting divorced now:

• Your parenting plan is the foundation everything else builds on. A carefully drafted, realistic plan reduces the odds of a future modification fight, even under the new, easier standard.
• Uncontested cases are where parents have the most control. When both spouses agree on time-sharing and a parenting plan up front, they write their own schedule rather than leaving it to a judge and the statutory presumptions.

At our firm, we handle Florida uncontested divorces for a flat $750, and when there are minor children, that package includes a parenting plan, a child support guidelines worksheet, and the UCCJEA affidavit, all at the same price. A clean, thorough parenting plan at the divorce stage is the single best protection against a costly modification battle later. You can see how the flat-fee process works in our guides for Hialeah and St. Petersburg parents with children, or ask questions directly through Victoria, our AI intake assistant.

We focus only on uncontested divorce. Post-judgment modification actions are contested matters that fall outside our flat-fee service, and we are glad to point you to a vetted family law attorney through the Divorce.law network for those.

Legal disclaimer

This article is provided by Antonio G. Jimenez, Esq., Florida Bar No. 21022, for general informational purposes only and does not constitute legal advice. Reading it does not create an attorney-client relationship. Florida statutes and their interpretation change, and how any law applies depends on the specific facts of your case. For advice about your situation, consult a licensed Florida attorney.