Florida Child Support Calculator and
Guidelines Worksheet

Florida calculates child support under the Income Shares model codified in Florida Statute Section 61.30. The court combines both parents' net monthly incomes and looks up the combined obligation on the state's child support guidelines schedule, which sets a minimum support level based on the number of children.

Each parent then pays their proportional share based on their percentage of total combined income.

Florida's guidelines apply to net income, not gross. Allowable deductions include federal and state income taxes, FICA, mandatory retirement contributions, health insurance premiums, and court-ordered payments to other dependents.

Health insurance for the child is a mandatory add-on: the parent who provides coverage receives a credit, and the cost is added to the base obligation before dividing between the parents.

Florida courts must follow the guidelines unless they find that applying them would be unjust or inappropriate. The most common deviations involve parenting time: when the non-custodial parent has the child for more than 20% of overnights (73+ nights per year), the court applies a parenting time adjustment that can reduce the standard obligation.

The Florida Department of Revenue administers child support services statewide.

To calculate child support under Florida law, the court begins with each parent's total monthly income, subtracts allowable deductions to reach net income, and multiplies by the combined statutory percentage for the number of children to find the basic monthly obligation. The parent paying child support then pays their proportionate share of that basic monthly obligation.

When the non-custodial parent exercises substantial time-sharing — defined as 73 overnights or more per year — the parenting time adjustment applies: the court multiplies the basic monthly obligation by 1.5 and then reduces each parent’s share by their percentage of overnights. Child care and health insurance add-ons are divided proportionally.

Subtract any applicable credits and the result is the transfer payment the parent paying child support owes each month.

Under Florida's Income Shares model, the calculation begins by determining each parent's gross income from all sources, including wages, salaries, commissions, bonuses, self-employment income, rental income, and certain benefits. The court then applies allowable deductions — such as taxes, mandatory retirement contributions, and pre-existing child support obligations — to arrive at each parent's adjusted or net income.

Both incomes are combined to find the total household income available for child support.

The combined income figure is then matched against Florida's child support schedule (referenced in Income Shares model using both parents' combined net income with the Florida Child Support Guidelines Schedule), which provides a base obligation amount for the number of children involved. For example, under a typical Income Shares schedule, parents with a combined monthly income of $8,000 and two children have a presumptive obligation of $1,400 per month.

Each parent's share is then calculated in proportion to their contribution to the combined income — if one parent earns 60% of the total, they are responsible for 60% of the base obligation.

Additional expenses are layered on top of the base obligation. Health insurance premiums for the child, work-related childcare costs, and extraordinary expenses (such as special education or medical needs) are typically added to the base figure and divided proportionally between the parents.

The custodial parent's share is assumed to be spent directly on the child, while the non-custodial parent's share becomes the child support payment.

The number of children is the most direct factor in any Florida child support calculation under the child support guidelines in Income Shares model using both parents' combined net income with the Florida Child Support Guidelines Schedule. The basic child support obligation increases with each additional child, though not in a strictly linear fashion.

The amount of child support also depends on each parent's monthly gross income, which includes wages, salary, commissions, bonuses, and other recurring sources. The noncustodial parent's share is calculated based on their proportion of the combined monthly gross income.

Health care and child care costs play a major role. The parent who carries the child's health insurance receives a credit or offset, and unreimbursed medical expenses exceeding a threshold are typically split between the parents.

Child care costs necessary for employment or education are added to the basic child support obligation and divided proportionally between parents.

Children with special needs — whether physical, developmental, or educational — can significantly increase the amount of child support. Florida courts operating under Fla.

Stat. § 61.30 have discretion to deviate upward from the guideline amount when a child requires therapies, specialized schooling, or ongoing medical treatment that exceeds ordinary expenses.

Similarly, extracurricular activities and private school tuition may be considered, though courts vary in how they treat these costs.

High-income cases present unique challenges. Where Florida's schedule under Income Shares model using both parents' combined net income with the Florida Child Support Guidelines Schedule sets a maximum combined income threshold, courts exercise independent discretion above that cap rather than applying the standard table.

When a parent is voluntarily unemployed or underemployed, Florida courts may impute income — assigning an earning capacity based on the parent's education, work history, job market conditions, and prior earnings — to prevent artificially lowering the child support amount by choosing not to work or accepting a lower-paying job without justification.

Florida's child support obligation generally continues until the child reaches the age of majority under state law — check Fla. Stat.

§ 61.30 for the specific cutoff age, which may extend beyond 18 in certain circumstances such as a child still in high school or college. Support may also end earlier if the child becomes emancipated through marriage, military service, or court order.

Either parent may petition the court under Fla. Stat. § 61.30 to modify a child support order when there has been a material change in circumstances. Common triggers include:

• A significant income change for either parent (a material change in circumstances — such as a significant income shift, change in custody arrangement, or change in the child's needs — is generally required to modify the existing order; the exact threshold under Fla. Stat. § 61.30 controls for Florida)
• Loss of employment or onset of a disability
• A significant change in the child's medical, educational, or developmental needs
• A substantial change in the custody or parenting-time arrangement

The parent seeking modification bears the burden of proving that circumstances have genuinely changed since the last order.

Modifications in Florida under Fla. Stat.

§ 61.30 are not automatic — even when circumstances change, the existing order remains in effect until a court enters a new one. Filing promptly matters because modifications typically take effect from the date of the petition, not retroactively to when the change occurred.

Parents who delay filing risk accumulating arrears under the original order that cannot be forgiven, since federal law prohibits retroactive reduction of child support arrears. Families navigating this process should contact a Florida family law attorney to confirm the specific modification threshold and filing procedures that apply to their order.

Florida has multiple enforcement mechanisms under Fla. Stat.

§ 61.30 to ensure child support is paid. The most common tool is income withholding (wage garnishment), which is now mandatory for most new and modified child support orders.

Under an income withholding order, the obligor's employer deducts the support amount directly from their paycheck and sends it to the state disbursement unit. This approach removes the obligation from the paying parent's discretion and provides the custodial parent with reliable, timely payments.

When wage garnishment is insufficient or the obligor is self-employed, Florida can pursue additional enforcement actions:

• Intercepting federal and state tax refunds
• Placing liens on real and personal property
• Suspending driver's licenses and professional or occupational licenses
• Denying or revoking passport applications for arrears exceeding $2,500
• Reporting delinquent obligors to credit bureaus

Each tool creates significant practical consequences that apply without a separate court hearing.

In severe cases, Florida courts may hold a non-paying parent in contempt of court, which can result in fines, community service, or incarceration. Repeated willful failure to pay can lead to criminal prosecution under both state and federal law.

The Deadbeat Parents Punishment Act makes it a federal crime to willfully fail to pay child support for a child living in another state when the arrearage exceeds $5,000 or has been unpaid for more than one year. The federal Office of Child Support Services (OCSE) can assist custodial parents with enforcement at no cost.

To contact the Florida child support program directly, use the OCSE state programs directory.

The amount of parenting time each parent exercises directly affects the child support calculation in Florida. When the non-custodial parent has the child for a significant number of overnights — typically 25% or more of the year (approximately 92 overnights in many jurisdictions) — Florida's guidelines under Income Shares model using both parents' combined net income with the Florida Child Support Guidelines Schedule apply a shared-custody or parenting-time adjustment that reduces the non-custodial parent's obligation.

A parent who has the child more often incurs more direct expenses for housing, food, and daily needs, so the transfer payment to the other parent reflects that shared financial responsibility.

In cases where parents share custody equally (50/50), Florida courts typically still calculate support based on the income differential between the parents. The higher-earning parent generally pays support to the lower-earning parent, even in a true 50/50 arrangement, because the child's standard of living should be roughly comparable in both households.

The amount is usually significantly lower than in a traditional custody arrangement as calculated under Income Shares model using both parents' combined net income with the Florida Child Support Guidelines Schedule. Even small changes in the overnight count — such as moving from 120 to 128 overnights — can cross a threshold that triggers a meaningful change in the support calculation.

Use the Florida Custody Time Calculator to track overnights precisely and determine which parenting time threshold applies to your schedule.

The Florida child support calculator estimates support under Florida's Income Shares model as codified in Fla. Stat.

§ 61.30. Florida child support calculations begin with both parents' combined monthly net income, which is used to find the basic obligation amount from Florida's child support guidelines schedule.

The Florida child support guidelines worksheet (Form 12.902(e)) is the official court form used to document the child support calculation — both parents must submit financial affidavits (Form 12.902(b) or (c)) disclosing all income sources. Child support amounts in Florida include the basic obligation plus each parent's proportional share of childcare and health insurance costs.

The child support amount in Florida is calculated by: (1) determining each parent's monthly net income; (2) combining both incomes to find the total; (3) looking up the basic obligation from the Florida child support schedule for the combined income and number of children; (4) adding childcare and health insurance costs; and (5) allocating each parent's share proportionally. Florida courts may deviate from the child support guidelines worksheet result by up to 5% without written findings, and more than 5% with written justification.

For an accurate Florida child support estimate, use this calculator and verify with the official Florida child support guidelines worksheet at the Florida courts website.