Child Support Modification - Preparation Worksheet - Florida

Florida Family Law Updated August 16, 2026 Free Word and PDF

Florida Child Support Modification Preparation Worksheet

DO NOT FILE THIS WORKSHEET. Transfer verified facts to the current version of Florida Supreme Court Approved Family Law Form 12.905(b) accepted by the filing court. The official form requires sworn factual statements; do not copy an example or guess.

1. Before You Prepare the Official Form

Existing order

  • Court and county that entered the original order: [____________________________]
  • Case number and division: [____________________________]
  • Date of final judgment or latest modification: [____/____/________]
  • Paragraph establishing current support: [________]
  • Current amount and frequency: $[________] every [week / other week / month / other: ________]
  • Attach the final judgment and every later modification needed to show the operative order.

Jurisdiction and venue screen

  • Was the original order entered in Florida? [yes / no]
  • Was it entered by the court identified above? [yes / no]
  • Does either parent or any child now live outside Florida? [yes / no]
  • Is another state, country, tribal court, or Title IV-D agency involved? [yes / no]

If the order was entered elsewhere or a parent or child lives outside Florida, stop and obtain jurisdiction-specific advice before selecting a court. The approved-form instructions themselves warn filers to consult counsel about where to file in those circumstances.

2. Identify the Requested Change

The moving party seeks to:

  • ☐ increase ongoing child support;
  • ☐ decrease ongoing child support;
  • ☐ address support after a child reached majority or another order-defined termination point;
  • ☐ modify child-care, health-insurance, or uncovered health-expense treatment;
  • ☐ obtain another child-support modification: [____________________________].

Requested new amount, if calculated: $[________] per [________].

Do not treat this requested amount as self-executing. The existing order remains operative unless and until the court enters a new order.

3. Changed-Circumstances Facts

Fla. Stat. § 61.14(1)(a) addresses a change in circumstances or financial ability and permits a court to increase, decrease, or confirm support as equity requires. The approved form asks the filer to explain a substantial change and why the change is in the child’s best interests.

What changed after the operative order?

  • Date the change began: [____/____/________]
  • Person affected: [Petitioner / Respondent / child / other]
  • Before the change: [facts and amounts]
  • After the change: [facts and amounts]
  • Cause of the change: [____________________________]
  • Expected duration and supporting facts: [____________________________]
  • Documents supporting the change: [pay records / tax records / benefit records / child-care invoices / insurance records / medical records / other]
  • Why modification serves the child’s best interests: [specific facts, not a conclusion]

Do not use a made-up six-month rule. The cited statutes do not establish a general rule that every child-support change must continue for six months.

Guidelines-only route

If the claimed substantial change relies on the guidelines calculation itself, compare:

Item Amount
Existing monthly obligation $[________]
Current guidelines amount $[________]
Absolute dollar difference $[________]
Percentage difference [________]%

Under § 61.30(1)(b), the guidelines may supply the substantial change only when the difference is at least 15 percent or $50, whichever is greater. Do not state that this numerical threshold is the only possible basis for modification.

4. Current Financial Information

The petitioning party’s income affidavit must accompany the modification petition and be served with it under § 61.30(14). Use the current financial-affidavit form required for the filer’s circumstances.

Petitioner

  • Gross monthly income: $[________]
  • Allowable monthly deductions: $[________]
  • Net monthly income: $[________]
  • Current financial affidavit selected: [Form 12.902(b) / Form 12.902(c) / confirm current form]
  • Completed, signed, and ready to accompany petition: [yes / no]

Respondent

  • Known or estimated gross monthly income: $[________]
  • Source and date of information: [____________________________]
  • Missing information needed: [____________________________]

Do not insert a 15-day financial-affidavit deadline. Section 61.30(14) says the respondent includes the affidavit with the answer or as soon thereafter as practicable, and in every event at least 72 hours before a hearing on either party’s finances.

5. Guidelines and Child-Related Costs

Prepare the current Child Support Guidelines Worksheet, Form 12.902(e), using verified information.

Input Monthly amount Evidence
Petitioner net income $[________] [________]
Respondent net income $[________] [________]
Employment/job-search/qualifying education child care $[________] [________]
Child health-insurance cost $[________] [________]
Uncovered medical, dental, and prescription expense $[________] [________]
Other guidelines input $[________] [________]

For each child-related cost, identify who prepays it and avoid counting it twice. Sections 61.30(7)-(9) govern the cited additions, credits, and percentage shares; the complete guidelines calculation may require other statutory inputs not reproduced here.

6. Requested Relief for the Official Petition

Ask only for relief supported by the facts and current law:

  • ☐ modify ongoing support to the guidelines-supported or otherwise supported amount;
  • ☐ make the modification retroactive to the filing date as equity requires, recognizing that retroactivity is for the court to decide under § 61.14(1)(a);
  • ☐ allocate qualifying child-care and health-related costs consistently with § 61.30 and the calculation;
  • ☐ enter the separate income-deduction order required by § 61.1301(1)(a) for a nontemporary modifying order if none has been entered;
  • ☐ grant other lawful relief stated with its basis: [____________________________].

Do not add private-contract terms such as indemnity, liability caps, force majeure, integration, severability, forum selection, arbitration, automatic enforcement remedies, or prevailing-party fees. A petition asks the court for relief; it does not create those obligations by agreement.

7. Official Filing Packet Checklist

Confirm the current forms and local requirements with the clerk or filing court before filing.

  • ☐ Current Florida Supreme Court Approved Family Law Form 12.905(b)
  • ☐ Copy of final judgment and relevant modification orders
  • ☐ Petitioner’s current financial affidavit required by § 61.30(14)
  • ☐ Current Child Support Guidelines Worksheet, Form 12.902(e), or a documented reason permitted by the official instructions for filing it later
  • ☐ Notice of Social Security Number, Form 12.902(j), if not previously filed
  • ☐ Certificate of Compliance with Mandatory Disclosure, Form 12.932, when required
  • ☐ Settlement agreement, if any, using current requirements
  • ☐ Any locally required cover sheet, proposed order, confidential-information filing, fee, or indigency application

The clerk-hosted approved-form instructions list additional papers and describe timing, but the available copy is dated 11/15. Confirm that every form number, edition, deadline, and local procedure is still accepted before filing.

8. Signature, Service, and Case Path

  • Complete the official petition in black ink or as the filing court currently permits.
  • Sign the official petition before a notary public or deputy clerk as the approved form directs.
  • Arrange lawful initial service; do not treat a certificate of service by mail or email as a substitute for required initial process.
  • The cited approved-form instructions state that, when personal service is used, the respondent has 20 days to answer. Calculate any deadline under the current rules and actual service facts.
  • After an answer or default, follow the current contested, uncontested, or default procedure and all local mediation and hearing requirements.

9. Final Accuracy Review

  • ☐ Every factual statement is supported by personal knowledge or identified evidence.
  • ☐ Dates and amounts match the operative orders and records.
  • ☐ The substantial-change explanation states facts rather than labels.
  • ☐ The best-interests explanation is child-specific.
  • ☐ The petitioner’s affidavit accompanies and is served with the petition.
  • ☐ The guidelines comparison uses monthly amounts and the current worksheet.
  • ☐ Requested retroactivity is phrased as discretionary relief, not an automatic effective date.
  • ☐ Interstate, Title IV-D, military-service, constructive-service, safety, or confidential-information issues received separate review.
  • ☐ The filer uses the current official form accepted by the court, not this worksheet.

Attorney review is required before use.

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About this template

Last updated
August 16, 2026
Citations checked
August 16, 2026
Jurisdiction
Florida
Category
Family Law

Legal authority

  • Fla. Stat. § 61.14(1)(a) (changed circumstances or financial ability; modification and possible filing-date retroactivity)
  • Fla. Stat. § 61.30(1)(b) (guidelines-based substantial-change threshold)
  • Fla. Stat. § 61.30(7)-(9) (qualifying child-care and health costs; percentage shares)
  • Fla. Stat. § 61.30(14) (income affidavits accompanying child-support modification petitions and responses)
  • Fla. Stat. § 61.1301(1)(a) (separate income-deduction order for a nontemporary modification order if none exists)

Family law covers the paperwork that shapes divorce, custody, child support, adoption, guardianship, and other family matters. These filings are emotional and high-stakes, and they also have to meet strict procedural rules for service, financial disclosure, and parenting plans. Clean, accurate paperwork keeps the focus on getting a workable outcome for the family instead of getting derailed by technical problems that delay hearings or force amended filings.

Not legal advice

This template is provided for informational purposes. We recommend having an attorney review any legal document before signing, especially for high-value or complex matters.

Checked against the law it cites

A reviewer verified this template's legal citations against the official source on August 16, 2026.

Fla. Stat. § 61.14(1)(a) (checked August 16, 2026): "When the parties enter into an agreement for payments for, or instead of, support, maintenance, or alimony, whether in connection with a proceeding for dissolution or separate maintenance or with any voluntary property settlement, or when a party is required by court order to make any payments, and the circumstances or the financial ability of either party changes or the child who is a beneficiary of an agreement or court order as described herein reaches majority after the execution of the agreement or the rendition of the order, either party may apply to the circuit court of the circuit in which the parties, or either of them, resided at the date of the execution of the agreement or reside at the date of the application, or in which the agreement was executed or in which the order was rendered, for an order decreasing or increasing the amount of support, maintenance, or alimony, and the court has jurisdiction to make orders as equity requires, with due regard to the changed circumstances or the financial ability of the parties or the child, decreasing, increasing, or confirming the amount of separate support, maintenance, or alimony provided for in the agreement or order. A finding that medical insurance is reasonably available or the child support guidelines schedule in s. 61.30 may constitute changed circumstances. Except as otherwise provided in s. 61.30(11)(c), the court may modify an order of support, maintenance, or alimony by increasing or decreasing the support, maintenance, or alimony retroactively to the date of the filing of the action or supplemental action for modification as equity requires, giving due regard to the changed circumstances or the financial ability of the parties or the child."

Fla. Stat. § 61.30(1)(b) (checked August 16, 2026): "The guidelines may provide the basis for proving a substantial change in circumstances upon which a modification of an existing order may be granted. However, the difference between the existing monthly obligation and the amount provided for under the guidelines shall be at least 15 percent or $50, whichever amount is greater, before the court may find that the guidelines provide a substantial change in circumstances."

Fla. Stat. § 61.30(7)-(9) (checked August 16, 2026): "Child care costs incurred due to employment, job search, or education calculated to result in employment or to enhance income of current employment of either parent shall be added to the basic obligation. After the child care costs are added, any moneys prepaid by a parent for child care costs for the child or children of this action shall be deducted from that parent’s child support obligation for that child or those children. Child care costs may not exceed the level required to provide quality care from a licensed source. Health insurance costs resulting from coverage ordered pursuant to s. 61.13(1)(b), and any noncovered medical, dental, and prescription medication expenses of the child, shall be added to the basic obligation unless these expenses have been ordered to be separately paid on a percentage basis. After the health insurance costs are added to the basic obligation, any moneys prepaid by a parent for health-related costs for the child or children of this action shall be deducted from that parent’s child support obligation for that child or those children. Each parent’s percentage share of the child support need shall be determined by dividing each parent’s net monthly income by the combined net monthly income."

Fla. Stat. § 61.30(14) (checked August 16, 2026): "Every petition for child support or for modification of child support shall be accompanied by an affidavit which shows the party’s income, allowable deductions, and net income computed in accordance with this section. The affidavit shall be served at the same time that the petition is served. The respondent, whether or not a stipulation is entered, shall make an affidavit which shows the party’s income, allowable deductions, and net income computed in accordance with this section. The respondent shall include his or her affidavit with the answer to the petition or as soon thereafter as is practicable, but in any case at least 72 hours prior to any hearing on the finances of either party."

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