Ohio Child Support Calculator

Ohio uses the Income Shares model for child support, established under Ohio Revised Code § 3119. Both parents' gross incomes are combined, and the resulting combined gross income is used to determine the basic child support obligation from the Ohio Child Support Schedule published by the Ohio Department of Job and Family Services. Ohio's use of gross income — rather than net income as used by many other income shares states — simplifies one part of the calculation while adding complexity in others, because the gross income figure must then be adjusted for taxes and other factors before final obligations are determined. The schedule was comprehensively updated effective March 28, 2019 under Am. Sub. H.B. 366, which brought Ohio's tables in line with updated national child-rearing expenditure data and modern economic research.

The 2019 Ohio guideline reform was highly significant. The previous schedule had not been updated to reflect current economic data, resulting in support amounts that many observers believed were too low relative to actual child-rearing costs. The new schedule used updated data from the USDA's Expenditures on Children by Families report and other economic research. The reform also addressed parenting time more comprehensively than the previous version, creating a more graduated approach to adjustments for parenting time above the standard level. Courts began applying the new schedule to all new orders and modifications as of the effective date, and existing orders remained at their then-current amounts until a party sought and was granted a modification under the new framework.

Each parent's share of the basic child support obligation is calculated proportionally based on their gross income contribution to the combined total. For example, if Parent A earns $4,500 per month and Parent B earns $3,000, the combined income is $7,500. Parent A contributes 60% of combined income and is responsible for 60% of the basic obligation. Parent B contributes 40% and is responsible for 40%. The non-residential parent's proportional share becomes their child support obligation — a transfer payment to the residential parent. The residential parent's proportional share is presumed to be spent directly on the child through the normal costs of day-to-day custodial care including food, clothing, housing, and supervision.

Ohio's Child Support Schedule covers combined monthly gross incomes from approximately $850 to $150,000 per year. For each income level, the schedule provides a basic monthly child support obligation for one through five or more children. The amounts in the schedule represent estimates of typical child-rearing expenditures at various income levels, drawing on national economic research adjusted for Ohio's cost structure and living standards. Lower combined income levels produce lower absolute dollar amounts but represent a higher percentage of income — consistent with the economic reality that lower-income families devote a larger proportion of their resources to child-rearing basics than higher-income families who have more discretionary spending capacity.

Ohio's schedule has maximum and minimum provisions. When combined gross income exceeds $150,000 per year (approximately $12,500 per month), the court must use the top of the schedule as a floor and may add additional amounts based on the child's demonstrated needs and the parents' ability to pay. Ohio courts in these high-income cases often look at evidence of the child's actual lifestyle, expenses, and needs to set an appropriate above-cap amount rather than mechanically extrapolating from the schedule. When combined income falls below the schedule's minimum, courts are required to order a minimum support amount rather than zero — Ohio maintains that all parents have some financial obligation to support their children regardless of how modest their current income may be.

Gross income in Ohio for child support purposes includes all income from all sources. Ohio Revised Code § 3119.01 defines income to include wages and salary, self-employment income, overtime compensation, bonuses, commissions, tips, rental income, income from business ownership, interest and dividends, pension and retirement income, Social Security benefits, workers' compensation, unemployment compensation, disability benefits, and spousal support received from a prior relationship. The statute excludes means-tested government assistance such as food stamps and welfare payments from the income definition, as these programs are specifically designed to meet the recipient's minimum survival needs rather than to provide discretionary income available for child support transfers.

Ohio child support orders include both the basic support obligation from the schedule and mandatory add-ons for healthcare and childcare costs. For health insurance, Ohio courts order one parent to maintain health insurance coverage for the child when coverage is available through an employer at a reasonable cost. The additional cost of adding the child to the coverage — the marginal premium above what the parent alone would pay — is calculated and allocated between the parents in proportion to their gross incomes. If neither parent has access to affordable employer coverage, courts can order a parent to obtain private coverage and allocate the cost proportionally, or address healthcare needs through Medicaid enrollment when the family qualifies based on income.

Childcare costs in Ohio follow the same proportional allocation approach as health insurance. Work-related childcare — the cost of care that enables the custodial parent to maintain employment or attend job training — is added to the basic support amount and divided proportionally between the parents. Ohio courts look at the actual, documented childcare costs and the custodial parent's employment schedule to verify that the claimed childcare is genuinely work-related rather than elective supplemental care. As the child ages and childcare needs evolve — from infant daycare to after-school programs to no daycare for older teenagers — Ohio courts expect modifications to reflect these changes. Failure to update the order when childcare expenses end can result in the obligor significantly overpaying.

Extraordinary medical expenses not covered by insurance are shared between Ohio parents outside the basic support framework. Ohio courts typically include a provision in the support order requiring the parents to share uninsured medical costs in proportion to their gross incomes. When one parent incurs an uninsured medical expense, they provide documentation to the other parent, who then reimburses their proportional share within a specified timeframe — often 30 days. Major uninsured expenses such as surgery, orthodontia, or mental health treatment can create significant financial obligations for both parents. Ohio courts can also add anticipatable recurring medical costs — such as ongoing physical therapy for a child with a chronic condition — directly into the support order rather than leaving them to an ad hoc reimbursement process.

Ohio provides a parenting time credit when the non-residential parent has the child for more than 90 overnights per year — approximately 24.7% of annual time. Below this threshold, no credit is applied to the basic obligation. When a parent meets or exceeds the threshold, Ohio calculates a Parenting Time Adjustment that reduces their cash support obligation. The adjustment reflects the direct expenses the parent incurs during their time with the child and prevents double-counting of costs that both parents effectively share. Ohio's credit is graduated — a parent with exactly 90 overnights receives a smaller credit than a parent with 150 or 200 overnights — rather than being a binary on/off adjustment at a single threshold that would create a cliff effect.

For parents with 90 or more overnights, Ohio's adjustment formula multiplies the basic obligation by 1.5 to account for duplicated fixed costs in each household, then cross-multiplies by parenting time percentages, and calculates the net obligation for the parent owing support. When parenting time approaches equal — around 150 or more overnights — the credit becomes substantial. At exactly 50/50 parenting time with equal incomes, Ohio's formula produces no net transfer obligation. Courts in near-equal custody situations with significantly different incomes may still produce a meaningful support payment reflecting the income disparity rather than the duplicated direct expenses, as the income difference component continues to operate even when parenting time is balanced.

Disputes about parenting time credit in Ohio often center on whether actual parenting time matches the court order, whether non-overnight visits should count toward the threshold, and how to document compliance with the schedule. Ohio courts typically base the parenting time credit on the court-ordered schedule rather than informally exercised time. Parents seeking a credit for time exercised in excess of their court order face a higher burden — they generally need to first seek a formal modification of the custody order to have additional time recognized in the support calculation. Ohio courts are aware that parenting time and support are financially linked and watch carefully for manipulation through inflated parenting time claims used primarily to reduce support obligations.

The 2019 Ohio child support reform under Am. Sub. H.B. 366 represented the most comprehensive update to Ohio's guidelines in more than a decade. The reform updated the economic data underlying the support schedule to reflect current USDA expenditure research, modified the parenting time credit to be more graduated and less binary, clarified how imputed income should be calculated for voluntarily unemployed or underemployed parents, and addressed several procedural aspects of support proceedings. By 2023, Ohio courts had developed a substantial body of case law applying the 2019 schedule to various factual situations, providing clearer guidance on how above-cap cases should be handled and how the parenting time credit interacts with other adjustment factors in practice.

Ohio's enforcement machinery is administered through the county-level Child Support Enforcement Agencies (CSEA), which maintain records, process payments, and initiate enforcement actions. Income withholding is mandatory in Ohio for virtually all new or modified child support orders — the employer receives a withholding order directly and must begin withholding within the timeframe specified. Ohio participates in the Federal Parent Locator Service, which helps locate non-paying parents who have relocated to other states. State and federal tax refund intercepts apply automatically when arrears reach a defined threshold, and Ohio regularly sends financial institution data matches to identify bank accounts belonging to delinquent obligors that can be levied to satisfy arrears.

Ohio has a structured process for suspending driver's licenses and professional licenses of parents who fall significantly behind on support. An obligor who owes more than one month of support and fails to make payments or respond to the CSEA may receive a notice of intent to suspend their license. They have an opportunity to cure the default before suspension takes effect by making specified payments or entering a payment plan. Ohio also participates in passport denial for obligors owing more than $2,500 in arrears. Criminal nonsupport under Ohio Revised Code § 2919.21 applies when a parent willfully fails to pay support — a first-degree misdemeanor for amounts under $5,000 and a fifth-degree felony for larger arrears, providing serious consequences for persistent and intentional non-payment.