Income shares under R.C. 3119.021, cash medical, credits for other children — and the parenting-time adjustment applied automatically from your schedule's overnight count.
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Everything recalculates as you type — the estimate, the income split, and the parenting-time adjustment.
Court-ordered spousal support paid Annual amount either parent pays under a court order — it reduces that parent's income on the worksheet (Line 11).
Children's health insurance premiumThe annual premium paid for the family coverage that covers the children — only what comes out of that parent's pocket per year. On the worksheet it reduces that parent's income (Line 10b) — carrying the insurance lowers that parent's share.
Work-related child careOnly the annual amount that parent pays for child care so they can work. Do not include other child-care costs.
Cross-check with the State: Ohio publishes an official calculator that runs the complete JFS worksheet — ohiochildsupportcalculator.ohio.gov. Use it to verify any number you plan to rely on. What cash medical support is: a fixed $510.21 per child per year (R.C. 3119.30) for the children's routine medical costs, ordered when no private health insurance covers them — while insurance is provided, we show what the paying parent would owe if coverage ends. Reading the result: the guideline amount is the starting point Ohio courts and CSEA use — deviations up or down are possible under R.C. 3119.22–.23 (extended parenting time, extraordinary expenses, and other statutory factors). The full JFS worksheet also handles items this estimator simplifies.
Reporters, courts, and educators are welcome to reference or embed this tool. Credit “Gavvl Law — Ohio Child Support Calculator” with a link. Methodology and statute references below.
Gavvl Law establishes, modifies, or terminates Ohio child support for a flat $950 — quoted before you start, with no-credit-check payment plans and a $25 consultation.
Input definitions. Gross income is annual income before taxes from all sources under R.C. 3119.01 (wages, overtime, commissions, bonuses, self-employment, SSD, workers' comp, unemployment, pensions, investment and rental income, spousal support received) — excluding a current spouse's or partner's income, SSI and other means-tested assistance, and child support received for other children. Health insurance is the annual out-of-pocket premium for the family coverage covering the children; work-related child care counts only employment-necessitated care. Methodology. This estimator now follows the official JFS 07768 worksheet line by line. Each parent's income is adjusted first (Line 9 credit for other minor children using the schedule method; Line 10b out-of-pocket health-insurance premiums; Line 11 court-ordered spousal support paid). Income shares come from the adjusted incomes (Line 17, rounded to four decimals like the state calculator). The basic obligation is interpolated on the official Basic Child Support Schedule — JFS 07767 (rev. 6/2023), $600 increments, 1–6 children — with each parent's Line 18d set at the lower of the individual and income-share amounts (minimum $960/yr). A parent with 90+ court-ordered overnights gets the 10% reduction on Line 19b (R.C. 3119.051). Work-related child care is shared by income net of eligible tax credits, with credit for amounts a parent pays directly (Line 21). Cash medical support of $510.21 per child per year (R.C. 3119.30) is shared by income and included in every recommended order (Line 27) — who provides insurance affects how it is collected, not the worksheet amount. Items this estimator simplifies: three-year overtime/bonus averaging (enter your figure in gross income), self-employment FICA adjustments, derivative benefits (Line 20), age-based child-care caps, the shaded-area 50% child-care limit, and extrapolation above $336,000 combined income (R.C. 3119.04(B) — the court sets those case-by-case). Changelog: July 2026 — first release. August 2026 — rebuilt line-by-line on the official JFS 07768 worksheet with the full JFS 07767 (rev. 6/2023) schedule; verified against the state calculator to the cent. Official state tool: ohiochildsupportcalculator.ohio.gov runs the complete JFS worksheet. How to cite: Gavvl Law, Ohio Child Support Calculator (2026), gavvl.com/child-support-calculator.
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