Child Support Scenario Engine

The § 61.30 guideline math, with scenarios

Built on the official guideline schedule parsed directly from the Florida Legislature's statute page — not approximations. Compare time-sharing and income scenarios side by side, the way mediations actually negotiate.

Source:Fla. Stat. § 61.30(6) — Child Support Guidelines Schedule· retrieved July 5, 2026

Scenario A inputs

Parent A — monthly NET income

After allowable deductions (taxes, mandatory retirement, union dues, health insurance for yourself, court-ordered support actually paid).

Parent B — monthly NET income

Number of children

Yearly overnights with Parent A: 183 (Parent B: 182)

50% / 50% — the 20% threshold (73 overnights) switches the method. Equal = 182/183.

Children's health insurance premium — monthly

Only the children's portion of the premium.

Work/education-related child care — monthly

Estimated guideline result

Parent B pays Parent A (estimate)

$16 / month

Method: substantial time-sharing gross-up (§ 61.30(11)(b))

Combined net income: $7,000
Basic obligation: $1,885
Parent A income share: 57%
Parent B income share: 43%
Overnights A / B: 183 / 182
Add-ons (care + insurance): $250

· Each parent has at least 20% of overnights (183 / 182), so the substantial time-sharing gross-up method applies: the basic obligation is multiplied by 1.5 and cross-weighted by each parent's share of overnights.

· Child care and health insurance are shared by income percentage, with credit to the parent who actually pays the bill.

⚠ Courts may deviate from the guideline amount (± 5% routinely; more with written findings). Income, deductions, and overnight counts are often disputed — the inputs drive everything.

Estimate only — and the inputs are where cases are won and lost. This tool applies the guideline schedule to the numbers you enter. In real cases, the fight is usually about the numbers themselves: what counts as income, allowable deductions to reach net income, imputed income for un/under-employment, self-employment and business income, and the actual overnight count. The official worksheet is Form 12.902(e); courts can deviate from the guideline amount.

Attorney review is strongly recommended when income is disputed, a parent is self-employed or a business owner, support is being modified, or arrears/retroactive support are in play. This is legal information, not legal advice.