An online calculator can produce a child support number in seconds. Then it becomes nearly useless the moment a parent has a bonus, a closely held business, investment income, or combined earnings above Florida’s guideline schedule. The worksheet is an important starting point, but it doesn’t resolve every disputed financial question. For families whose income picture won’t fit neatly into a formula, what matters is what happens after that first number appears.
Parents asking how child support is calculated in Florida often want to know whether the figure reflects the family’s actual resources. That question gets complicated quickly when one household receives irregular compensation, business benefits, or income that doesn’t show up on a pay stub.
We bring decades of combined experience concentrated in family, marital, and probate court matters to these issues. A durable support arrangement depends on complete financial disclosure, an accurate worksheet, and a practical understanding of how a court handles circumstances the standard calculation wasn’t built to capture.
How Florida’s Income Shares Model Sets the Starting Number
Florida Statute 61.30 uses the Income Shares Model, which treats a child as entitled to the financial support they would have received if both parents lived together. The process begins by combining both parents’ net monthly incomes and locating the basic support obligation on the statutory schedule based on the number of children.
The distinction between gross and net income matters immediately. Gross income is broadly defined and can include wages, bonuses, commissions, self-employment earnings, investment income, rental income, pension payments, and other recurring sources. Allowable deductions (income taxes, Social Security and Medicare taxes, mandatory retirement contributions, and health insurance premiums for the child) are then used to arrive at net income.
Each parent is generally responsible for a share of the basic obligation equal to their percentage of the combined net income. Child care costs, health insurance costs, and certain medical expenses may also affect the final amount on the Child Support Guidelines Worksheet, the court form used to organize the calculation.
Time sharing can change the result when each parent has substantial overnight parenting time. Under the time-sharing gross-up (a calculation that applies when both parents have at least 73 overnights annually) the basic obligation is multiplied by 1.5 and then cross-calculated between households. This method accounts for the fact that both parents are directly covering a child’s food, housing, transportation, and daily needs during their respective parenting time. The result still depends on income, the number of overnights, and the child-related expenses assigned to each household.
When Combined Income Exceeds the Guidelines Schedule
The statutory schedule in Florida Statute 61.30(6) reaches combined monthly net income of $10,000. Above that threshold, the statute adds a percentage of the excess to the scheduled support figure, ranging from 5 percent for one child to 12.5 percent for six children.
That calculation is a presumptive minimum, not a ceiling. In Finley v. Scott, 707 So. 2d 1112 (Fla. 1998), the Florida Supreme Court held that judges must begin with the statutory guideline amount even in high-income cases. A departure of more than 5 percent requires written findings explaining why the guideline result would be unjust or inappropriate.
Finley v. Scott also recognized what is often called a good fortune trust. This is a court-supervised guardianship arrangement for a child’s property that can preserve a portion of support attributable to a parent’s substantial income for the child’s future, rather than simply increasing direct payments to the other parent. A good fortune trust isn’t automatic. The court must weigh the child’s reasonable needs, the family’s standard of living, and the evidence supporting the proposed structure, distinguishing between present expenses, appropriate opportunities, and assets intended for future benefit.
Determining Real Income for Business Owners & Professionals
Business income is often where an online estimate stops being reliable. Florida Statute 61.30 includes income from a business, dividends, recurring gains from property dealings, rental property, and trust distributions, not just a salary or regular draw.
For a business owner, income for support purposes generally means gross receipts minus ordinary and necessary business expenses, not simply the discretionary profit shown on a tax return. Disputes frequently center on whether claimed expenses are legitimate costs of producing income or personal benefits run through the company (vehicle costs, travel, meals, housing, and similar items). That distinction is especially significant in Miami family law matters involving executives, physicians, entrepreneurs, and families with closely held companies.
Florida Family Law Rule of Procedure 12.285 requires parents in most family cases to exchange financial records and file a sworn Family Law Financial Affidavit. The affidavit covers income, deductions, assets, liabilities, and monthly expenses; required disclosures can include tax returns, pay information, bank records, and business documents. When financial information appears incomplete or inconsistent, the court can order additional discovery and may consider forensic accounting evidence, particularly where income moves among entities, compensation includes deferred components, or business records mix personal and company expenses.
When a Court Imputes Income to a Parent
Imputed income is income assigned by the court when a parent is voluntarily unemployed or underemployed. It prevents a parent from reducing a support obligation simply by choosing not to work, cutting back hours without a valid reason, or earning less than their demonstrated capacity.
Florida Statute 61.30(2)(b) directs the court to consider recent work history, occupational qualifications, and prevailing earnings in the local job market. A court generally can’t rely on records more than five years old or impute a level of income the parent has never earned, unless that parent has recently become degreed, licensed, or certified for work at that level. If a parent doesn’t participate in the case or fails to provide adequate financial information, a rebuttable presumption may apply that the parent earns the median income of a year-round, full-time worker reported by the U.S. Census Bureau, though the parent can present evidence to show the presumed figure doesn’t accurately reflect their circumstances.
Where Miami-Dade Child Support Cases Are Resolved
Child support disputes connected to divorce, paternity, and modification proceedings in Miami-Dade are heard by the Eleventh Judicial Circuit’s Family Division at the Lawson E. Thomas Courthouse Center in downtown Miami. The Florida Department of Revenue Child Support Program handles certain administrative support matters separately, though a family court case typically involves broader questions about parenting, property, and financial disclosure.
The Eleventh Judicial Circuit also operates a Mediation and Arbitration Division providing court-connected mediation for family law disputes. Mediation can give parents a private setting to work through disputed income figures, business expenses, health insurance costs, and time-sharing assumptions before a contested hearing becomes necessary.
A support order can be modified only when there’s a substantial change in circumstances, and the recalculated amount must generally differ from the existing order by at least 15 percent or $50, whichever is greater. A job change, a material shift in parenting time, a significant income change, or changed health insurance costs may justify a review, but the parent seeking modification still needs evidence showing both the changed circumstances and the resulting guideline calculation.
The Worksheet Is the Beginning, Not the Entire Analysis
The guideline number creates a disciplined starting point, but it can’t resolve every question raised by variable compensation, business records, high income, or a child’s particular needs. Complete disclosure and sound documentation give the court (or the parents in mediation) a basis for reaching a result that follows Florida law and reflects the family’s financial reality.
When the income picture won’t fit neatly into a worksheet, we can help assess the documents and issues driving the calculation. At Hertz // Sager, Christy L. Hertz’s certified mediation background and Katie Sager’s trial-ready family law representation offer two informed paths for resolving complex support disputes. Contact us at (754) 704-1894 to discuss your circumstances.