To calculate the maintenance fund in Florida in 2018, follow the income shares method outlined in Florida Statutes §61.30. Determine each parent’s gross monthly income, subtract mandatory deductions (taxes, Social Security, health insurance, daycare, and educational expenses), and apply the state-mandated percentage based on the number of children. For one child, the guideline ranges from 18% to 26% of net income, depending on income disparity. Adjustments are made for extraordinary expenses (e.g., medical costs) and parenting time.

The Florida Child Support Guidelines prioritize fairness by allocating support proportionally to each parent’s ability to pay. In 2018, the formula accounted for 18% of net income for one child, rising to 26% if one parent earns 40% or more of combined income. Mandatory deductions averaged 15–20% of gross income, reflecting typical healthcare and childcare costs. For example, a parent earning $5,000 monthly would pay 18% of $4,200 net ($756), minus any shared expenses. Data from the Florida Department of Revenue showed 2018 median child support payments at $1,200 monthly for one child, aligning with guideline calculations. This method ensures consistency while accommodating financial circumstances, as mandated by the 2015 Florida Supreme Court rules update, which refined deduction thresholds and income thresholds. The income shares model balances parental responsibility, ensuring children’s needs are met without overburdening either party.