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Child support modification and time-sharing modification are related, but not identical.
Florida child support and time-sharing are both part of family law, but they use different legal standards. Child support modification generally focuses on substantial change, income, guidelines, overnights, health insurance, child care, and the current support order.
Time-sharing modification focuses on whether there has been a substantial and material change in circumstances and whether the requested change is in the child’s best interests.
A parent may need to understand both at the same time, especially when the actual schedule has changed and the child support amount no longer appears to match the number of overnights each parent is exercising.
Quick checks
What should you gather before guessing what to file?
Before choosing a form or assuming the court will reduce support, collect the facts that affect the legal standard, the guideline calculation, and local procedure.
The date your current final judgment, parenting plan, and child support order were entered.
Whether your income has changed, and when that change happened.
How many overnights you actually exercise with the child each year.
Whether your current parenting plan matches what is actually happening.
Whether child support arrears already accrued before any modification filing.
Whether the Florida Department of Revenue is involved in your child support case.
Which Broward division or judge is assigned to your case.
Which modification forms apply to child support, time-sharing, or both.
Support deadlines
The support filing date can determine what can and cannot be changed.
A change in income does not automatically change a court order. Until the order is changed, the ordered amount generally remains owed and enforceable.
Date of filing can matter for support
Florida Statutes § 61.14 generally allows support modification retroactive to the date the modification action is filed, not the date your income changed. Every month before filing may be a month the court cannot later reduce.
Past-due support is different from future support
Unpaid support that became due before a modification filing is generally treated as a final judgment by operation of law. That means arrears are not the same thing as future monthly payments.
Time-sharing modification has a separate standard
Changing a parenting plan or time-sharing schedule generally requires a substantial and material change in circumstances and a best-interests finding.
Response and disclosure deadlines may apply
After a supplemental petition is served, Florida family procedure and form instructions may create response, mandatory disclosure, mediation, and hearing-related deadlines that must be verified.
Florida rules
The 2023 time-sharing changes make current-law verification important.
Older forms, articles, and case summaries may use older language. The current statute should be verified before relying on anything that mentions the old “unanticipated” standard.
Substantial change for child support
Florida child support modification generally requires a substantial change in circumstances. A guideline recalculation may support modification if the new amount differs from the existing monthly obligation by at least 15% or $50, whichever is greater.
The 20% overnight threshold
Florida child support calculations treat time-sharing differently when a parent exercises at least 20% of the overnights in a year. That is roughly 73 overnights annually.
Substantial and material change for time-sharing
A parenting plan or time-sharing schedule generally cannot be modified without a substantial and material change in circumstances and a finding that modification is in the best interests of the child.
2023 equal time-sharing presumption
Florida law now includes a rebuttable presumption that equal time-sharing is in the best interests of the child unless the presumption is rebutted by a preponderance of the evidence.
Forms
Common Florida family modification forms to verify.
The correct forms depend on whether you are modifying child support, parenting plan/time-sharing, or both. Verify the current forms and instructions before filing.
Supplemental Petition to Modify Parental Responsibility, Visitation, or Parenting Plan/Time-Sharing Schedule — Form 12.905(a).
Supplemental Petition for Modification of Child Support — Form 12.905(b).
Family Law Financial Affidavit — Form 12.902(b) or Form 12.902(c).
Child Support Guidelines Worksheet — Form 12.902(e).
UCCJEA Affidavit — Form 12.902(d), if parenting/time-sharing is involved.
Notice of Social Security Number — Form 12.902(j).
Certificate of Compliance with Mandatory Disclosure — Form 12.932.
Parenting Plan — Form 12.995(a) or Form 12.995(b), if a new plan is requested.
Broward County example
Florida law is only half the answer. Your circuit procedure can matter too.
A statewide statute tells you the legal rule. Your circuit court, clerk, self-help unit, case management procedures, mediation rules, and filing fees can affect what you actually need to verify.
17th Judicial Circuit family self-help
The 17th Judicial Circuit publishes family law self-help information, including common modification forms for self-represented litigants.
Broward Clerk Family Division
The Broward Clerk Family Division provides information about family filings, fees, forms, and the Pro Se Self Help Unit.
Case Management Unit for pro se parties
Broward family division procedures direct self-represented parties to contact the Case Management Unit instead of the judicial assistant for procedural help.
Family mediation may apply
Broward family cases may involve mediation requirements or court-sponsored family mediation options, depending on the case and division procedures.
Questions to ask
Bring better questions to the clerk, self-help center, legal aid, DOR, or an attorney.
Bach Pro Se cannot tell you what to do. But it can help you identify the questions that may matter before you ask a human helper.
Based on my current order and the date it was entered, what is the correct process to request child support modification, time-sharing modification, or both?
How does the filing date affect what child support can be changed retroactively under Florida Statutes § 61.14?
What part of my past-due child support is treated as arrears that cannot be retroactively lowered?
Do my current income changes meet the substantial-change standard under Florida Statutes §§ 61.14 and 61.30?
Does my actual overnight schedule meet or approach the 20% overnight threshold under Florida Statutes § 61.30?
What facts would matter for showing a substantial and material change in circumstances for time-sharing?
How does the 2023 equal time-sharing presumption affect a modification case?
Which Florida Supreme Court family law forms should I use, and are the form instructions up to date with current law?
What filing fees, reopen fees, indigency application options, mediation requirements, and division procedures apply in Broward County?
If DOR is involved, should I request a DOR review, file in court, or ask a lawyer about both options?
How Bach Pro Se helps
Surface the rules you did not know to search for.
General AI tools can sound confident while missing local details, using outdated family-law language, inventing citations, or blurring the difference between support modification, arrears, and time-sharing. Bach Pro Se is built for Florida legal research support: real source links, deadline flags, local court details, and plain-language explanations.
FAQ
Florida time-sharing and child support modification FAQ
Can Florida child support be changed retroactively?
In a modification case, Florida Statutes § 61.14 generally allows modification retroactive to the date the modification action is filed, as equity requires. Support that became due before filing is usually treated differently and may not be modifiable.
Can past-due child support arrears be lowered in Florida?
Past-due support that accrued before a modification filing is generally treated as a final judgment by operation of law. A court may be able to modify future payments, but arrears are a separate issue that should be verified with legal aid, DOR, the clerk, or a licensed attorney.
What is the Florida child support 15% or $50 rule?
Florida Statutes § 61.30 says the difference between the existing monthly obligation and the guideline amount must be at least 15% or $50, whichever is greater, before the guidelines may provide the basis for a substantial change in circumstances.
Does more time-sharing affect child support in Florida?
It can. Florida child support calculations include a time-sharing adjustment when a parent exercises a substantial amount of time-sharing, defined as at least 20% of overnights in the year.
Did Florida change the time-sharing law in 2023?
Yes. Florida added a rebuttable presumption that equal time-sharing is in the best interests of the child and removed older “unanticipated” language from the modification standard in the statute.
Can Bach Pro Se tell me what to file?
No. Bach Pro Se is research support only. It is not a lawyer, does not provide legal advice, and cannot decide what you should file or do.
Sources
Sources to verify
Use these sources as starting points. Always verify current text, local procedure, case status, filing requirements, support balances, and deadlines with the clerk, legal aid, DOR, a self-help center, or a licensed attorney.
- Florida Statutes § 61.14 — Enforcement and modification of support, maintenance, or alimony
- Florida Statutes § 61.30 — Child support guidelines
- Florida Statutes § 61.13 — Support of children; parenting and time-sharing
- 17th Judicial Circuit — Family Law Self Help Information
- Broward County Clerk of Courts — Family Division
- Florida Courts — Supplemental Modification Petitions, Forms 12.905(a) and 12.905(b)
- Florida Senate — CS/SB 1416, Dissolution of Marriage, 2023 amendments
- 17th Judicial Circuit — Mediation & Arbitration
- Florida Department of Revenue — Changing a Support Order