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Florida Statutory Child Support Calculator

Florida calculates child support under an Income Shares Model based on combined net monthly incomes. When a parent exercises substantial time-sharing of 20% or more (at least 73 overnights per year), Florida law mandates the 1.5x Gross-Up Method pursuant to Fla. Stat. § 61.30(11)(b) to account for duplicated household expenditures. Official statutory authority: Fla. Stat. § 61.30.

Specialized Scenarios:50/50 Shared Custody ↓High-Income Deviation ↓Sole Custody Guidelines ↓
Statutory Scope: This page calculates estimated Child Support under Fla. Stat. § 61.30. It does not compute Spousal Support (Alimony). Child support is determined strictly for minor children.

Statutory Case Parameters

Florida (FL)
1Governing Jurisdiction
Statutory Basis: Fla. Stat. § 61.30
2Monthly Incomes & Allowable Deductions
$
Pre-tax salary, wages, business revenue
$
Mandatory union dues & retirement
$
Pre-tax salary, wages, business revenue
$
Mandatory union dues & retirement
3Number of Dependent Children Covered
4Annual Custody Overnights (Out of 365)
Parent A: 183 Overnights (50.1%) Parent B: 182 Overnights (49.9%)
0 nights (Sole Parent B)183 nights (Equal 50/50)365 nights (Sole Parent A)
5Children's Health Insurance Premium
$
Only incremental premium for child(ren)
Cost is credited or prorated by income shares
Parent A (Payor)FL Guideline
Estimated Baseline Guideline Amount
$311 / mo
Annualized: $3,732 / year
⚠️ESTIMATE ONLY — NOT LEGAL ADVICE

This automated tool calculates a preliminary statutory guideline estimate. Actual child support orders are determined by a judge and frequently deviate based on health insurance, childcare, taxes, and judicial discretion.

Notice: This tool calculates Child Support, not Spousal Support (Alimony).
Combined Income$12,000
Basic Support Total$2,384
Parent A Share62.5%
Parent B Share37.5%
⚠️ High-Earner Cap Exceeded
Combined income exceeds the Florida statutory cap of $10,000/mo. Base calculation covers income up to the cap; supplemental support on excess is subject to judicial discretion.
Independent Legal NoticeFL Family Law Guidance

When to Consult a Licensed Florida Family Law Attorney

Judges in Florida routinely depart from statutory guideline math when specific deviation factors exist (unusual travel costs for visitation, private school tuition, extraordinary medical needs, or dual-household expenses).

  • ■Evaluate discretionary deviation thresholds for your specific jurisdiction
  • ■Verify allowable self-employment deductions & net resource offsets
  • ■Draft enforceable formal stipulations with the clerk of court
Find Licensed Counsel via Official Bar Directory →

Alimonify is an independent informational calculation tool and is not a law firm, legal aid provider, or certified lawyer referral service. Alimonify does not provide legal representation, legal advice, or attorney referral services.

Statutory Framework Analysis

Florida Legal Mechanics & Court Standards

Legislative Formula & Terminology

Parents determine net disposable monthly incomes; combined net income determines basic support from the § 61.30(6) statutory schedule. When overnights reach 73+, basic support is multiplied by 1.5 and cross-allocated by respective time-sharing percentages.

  • Custodial Parent Term: Majority Time-Sharing Parent (Obligee)
  • Obligor Parent Term: Non-Majority Parent (Support Obligor)
  • Shared Custody Regime: Substantial Time-Sharing (≥ 73 Overnights / 20%)
  • Official Court Form: Child Support Guidelines Worksheet (Form 12.902(e))

Key Statutory Thresholds (2025/2026)

Shared Custody Trigger73 Overnights
Triggers cross-credit calculation
Statutory Cap$10,000/mo
$120,000/yr ceiling
Self-Support Reserve$650/mo
Protected subsistence income
Minimum Order Floor$50/mo
Statutory floor for indigent payors
Custody & Income Case Law Compendium

Florida Custody Schedules, High-Income Caps & Precedent

How Florida family courts apply Fla. Stat. § 61.30 across 50/50 equal parenting schedules, high-net-worth income deviations, and traditional sole physical custody orders:

Equal Parenting Time

Florida: 50/50 Shared Custody

Load 50/50 Shared Custody Preset ↑

Statutory Rule: Under Fla. Stat. § 61.30(11)(b), equal 50/50 time-sharing exceeds the 73-overnight threshold, mandating the 1.5x Gross-Up Method to equalize duplicated household overhead.

Key Statutory Rules

  • Under Florida Statute § 61.30(11)(b), exercising 73 or more overnights (20%+) triggers the mandatory 1.5x Gross-Up Method.
  • Basic guideline support from § 61.30(6) is multiplied by 1.5 (150%) to account for maintaining two complete living residences for the child.
  • Each parent’s grossed-up obligation is multiplied by the percentage of time the child spends in the OTHER parent’s care.
  • Health insurance premiums and authorized work-related childcare are added and credited based on each parent’s net income percentage.

Judicial Application & Controlling Case Law

Florida Circuit Court judges are statutorily required to apply the 1.5x Gross-Up Method whenever the 73 overnight threshold is met, unless written findings justify deviation.

Controlling Authority: Fla. Stat. § 61.30(11)(b); Undercuffler v. Undercuffler, 798 So. 2d 867 (Fla. 4th DCA 2001).

Practical Calculation Benchmark

Parent A earning $6,000/mo net and Parent B earning $4,000/mo net with 2 children at 50/50 overnights results in Parent A paying approximately $330/month to Parent B.

Cap Deviation Analysis

Florida: High-Income Deviation

Load High-Income Deviation Preset ↑

Statutory Rule: Fla. Stat. § 61.30(6) sets statutory table limits at $10,000/month combined net income, applying specific percentages (5% to 11%) to excess income.

Key Statutory Rules

  • Pursuant to Fla. Stat. § 61.30(6), combined parental net monthly incomes exceeding $10,000 are calculated by adding a statutory percentage to the $10,000 base amount.
  • Statutory excess percentages are: 1 child = 5.0%, 2 children = 7.5%, 3 children = 9.5%, 4 children = 11.0%.
  • While percentage calculation is presumptive, judges retain discretion under § 61.30(11)(a) if the result exceeds the child’s actual developmental and lifestyle needs.
  • Extraordinary expenses (private school, specialized equestrian or athletic coaching, travel) are apportioned by net income percentage.

Judicial Application & Controlling Case Law

Florida appellate courts uphold the § 61.30(6) percentage formula on excess income unless the obligor demonstrates that the resulting order constitutes disguised alimony.

Controlling Authority: Finney v. Finney, 995 So. 2d 579 (Fla. 1st DCA 2008); Miller v. Schou, 616 So. 2d 436 (Fla. 1993).

Practical Calculation Benchmark

On combined net income of $20,000/mo for 2 children, base support is $2,234 plus 7.5% of the $10,000 excess ($750), totaling $2,984/month combined obligation.

Primary Custodian Baseline

Florida: Sole Custody Guidelines

Load Sole Custody Guidelines Preset ↑

Statutory Rule: Standard Florida schedule applies when the non-majority parent exercises fewer than 73 overnights (< 20%), with no gross-up multiplier.

Key Statutory Rules

  • When the non-majority parent has fewer than 73 overnights per year, standard Income Shares applies without the 1.5x multiplier.
  • The non-majority parent pays their straight pro-rata percentage of the basic obligation from the § 61.30(6) table.
  • Low-income payors are protected by a statutory minimum floor of $50/month and self-support evaluation.
  • Health insurance coverage for the child is credited dollar-for-dollar to whichever parent pays the monthly carrier premium.

Judicial Application & Controlling Case Law

Florida family courts enforce Form 12.902(e) line-by-line calculations for standard sole custody arrangements.

Controlling Authority: Fla. Stat. § 61.30(6); Department of Revenue v. Jackson, 846 So. 2d 624 (Fla. 1st DCA 2003).

Practical Calculation Benchmark

Non-majority parent earning $5,000/mo net where custodial parent earns $3,000/mo net (62.5% share) pays $1,143/month for 2 children under standard schedule.

Statutory Adjustment Guide

Allowable Income Deductions in Florida

Under Fla. Stat. § 61.30, gross earnings are adjusted for mandatory expenses prior to applying the guideline schedule. The following statutory deductions reduce parental support obligations:

Fla. Stat. § 61.30(3)(a)

Federal, State, and Local Income Taxes

Actual taxes paid or computed based on allowable personal exemptions and filing status (Florida has no state personal income tax).

Fla. Stat. § 61.30(3)(b)

Federal Insurance Contributions (FICA) / Self-Employment Tax

Mandatory Social Security and Medicare withholding or verified self-employment tax contributions.

Fla. Stat. § 61.30(3)(c)

Mandatory Union Dues

Union dues required as an absolute condition of current employment.

Fla. Stat. § 61.30(3)(d)

Mandatory Retirement Payments

Mandatory pension contributions required by an employer or state/federal retirement system.

Fla. Stat. § 61.30(3)(e)

Health Insurance Payments for the Parent

Health insurance premiums paid by the parent for their own coverage (child coverage is addressed separately as an add-on).

Fla. Stat. § 61.30(3)(f)

Court-Ordered Support for Other Children Actually Paid

Pre-existing child support orders for children from other relationships, provided payments are actually being made.

Fla. Stat. § 61.30(3)(g)

Court-Ordered Spousal Support (Alimony) Paid

Court-ordered spousal support payments paid to a former spouse pursuant to a valid domestic relations order.

Judicial Discretion

Grounds for Departure from Florida Guideline Math

Statutory child support formulas carry a rebuttable presumption of correctness. However, family court judges may depart from formula yields upon written findings of extraordinary circumstances:

⚖️ Substantial Time-Sharing Gross-Up (§ 61.30(11)(b))

When the non-majority parent exercises at least 73 overnights (20%), the court must apply the statutory 1.5x Gross-Up adjustment formula.

⚖️ Extraordinary Medical & Psychological Costs (§ 61.30(11)(a)(1))

Uninsured medical, dental, or psychological treatment required by the child exceeding routine care.

⚖️ Independent Income of the Child (§ 61.30(11)(a)(2))

Substantial independent assets, trust distributions, or employment earnings of the minor child.

⚖️ Seasonal Variations in Parental Income (§ 61.30(11)(a)(5))

Agricultural, tourism, or commission-dependent income fluctuating heavily across quarters.

⚖️ Special Needs of a Disabled Child (§ 61.30(11)(a)(6))

Specialized therapy, assistive equipment, or specialized private educational accommodations.

Mathematical Case Study

Worked Case Example: Florida Substantial Time-Sharing 1.5x Gross-Up (2 Children, 50/50 Custody)

Case Facts: Parent A earns $6,000/month net disposable income. Parent B earns $4,000/month net disposable income. The parents share 2 children with equal 50/50 time-sharing (183 overnights for Parent A, 182 overnights for Parent B).
Step 1: Determine Combined Net Income and Parental SharesCombined Net = $6,000 + $4,000 = $10,000. Parent A = 60.0%, Parent B = 40.0%

Combine both parents’ net monthly incomes pursuant to Fla. Stat. § 61.30(2)-(5).

Step 2: Extract Schedule Basic ObligationFrom § 61.30(6) table: 2 children at $10,000 combined net income = $2,234 / month

Reference the statutory child support table for 2 children at $10,000 combined net.

Step 3: Apply Statutory 1.5x Gross-Up Multiplier$2,234 × 1.5 = $3,351.00 / month grossed-up base support

Under Fla. Stat. § 61.30(11)(b), when a parent has at least 73 overnights (183 > 73), the base obligation is multiplied by 150% to account for duplicated infrastructure in both residences.

Step 4: Apportion Grossed-Up Obligation by Income SharesParent A Share = $3,351 × 60% = $2,010.60; Parent B Share = $3,351 × 40% = $1,340.40

Calculate each parent’s initial statutory share of the grossed-up obligation.

Step 5: Multiply by Other Parent’s Time-Sharing PercentageParent A to B = $2,010.60 × (182 / 365 = 49.86%) = $1,002.55; Parent B to A = $1,340.40 × (183 / 365 = 50.14%) = $672.08

Multiply each parent’s share by the percentage of time the child spends in the OTHER parent’s care.

Step 6: Calculate Net Guideline ObligationNet Payment = $1,002.55 - $672.08 = $330.47 / month (Parent A pays Parent B)

Parent A pays Parent B the net cross-credit difference of approximately $330/month.

💡 Calculated Judicial Order: Parent A pays $330/month to Parent B under Florida’s statutory 1.5x Gross-Up 50/50 formula.
State Legal Questions

Florida Child Support Guidelines FAQ

How does Florida calculate child support when parents share 50/50 custody?

Under Fla. Stat. § 61.30(11)(b), when parents exercise equal or substantial time-sharing (at least 73 overnights, or 20%), the court applies the "Gross-Up Method". The basic guideline obligation is multiplied by 1.5 (150%) to account for duplicated household expenses. Each parent’s obligation is multiplied by the percentage of time the child spends with the OTHER parent, and the higher-obligation parent pays the net difference.

What is the 73 overnights rule in Florida child support?

Under Florida Statute § 61.30(11)(b), "substantial time-sharing" begins when the non-majority parent exercises at least 20% of the overnights in a calendar year (exactly 73 overnights). Once 73 overnights is reached, the statutory 1.5x Gross-Up calculation automatically replaces the standard sole-custody formula, significantly reducing the payor’s obligation.

How does Florida handle combined net incomes over $10,000 per month?

Pursuant to Fla. Stat. § 61.30(6), for combined net monthly incomes exceeding $10,000, basic support is calculated by starting with the $10,000 base amount ($1,437 for 1 child, $2,234 for 2 children, $2,796 for 3 children, $3,264 for 4 children) and adding a statutory percentage to the income over $10,000: 5.0% for 1 child, 7.5% for 2 children, 9.5% for 3 children, and 11.0% for 4 children.

How are health insurance and childcare costs factored in Florida?

Under Fla. Stat. § 61.30(7)-(8), child health insurance premiums and allowable work-related childcare costs are added to the basic support obligation and divided proportionally according to each parent’s net income percentage. The parent who actually pays the provider receives a direct credit on the guideline worksheet.

Administrative & Interstate Framework

Florida Title IV-D Agency & Interstate Support Framework

Official State Enforcement

Florida Supreme Court Approved Family Law Form

Title IV-D child support services in Florida are administered through the Florida Supreme Court Approved Family Law Form. The agency manages automated income withholding, interstate order registration, federal parent locator queries (FPLS), and medical support enforcement under Fla. Stat. § 61.30.

Mandatory Court Worksheet: Child Support Guidelines Worksheet (Form 12.902(e))
Interstate Moves & UIFSA

Continuing Exclusive Jurisdiction (CEJ)

If either parent or child relocates outside of Florida, modification and collection proceedings are strictly governed by the Uniform Interstate Family Support Act (UIFSA, 42 U.S.C. § 666(f)) and the Full Faith and Credit for Child Support Orders Act (28 U.S.C. § 1738B).

Read Interstate Child Support & UIFSA Guide →