Ohio Child Support Calculator & Guide (2025)

Overview of Ohio Child Support

Ohio calculates child support using the Income Shares Model as set forth in Ohio Revised Code 3119.01 through 3119.31. This model estimates the amount parents would collectively spend on their children and divides that obligation based on each parent's proportionate share of combined income.

The Ohio Child Support Guidelines use a basic child support schedule — a table that provides base support amounts based on combined gross income levels and the number of children. The schedule is updated periodically to reflect changes in the cost of living.

How Child Support Is Calculated in Ohio

The calculation follows these steps:

1. Determine gross income for both parents (salary, wages, bonuses, commissions, self-employment, disability, Social Security, unemployment, pensions, rental income)
2. Adjust for prior support obligations — subtract any existing child support or spousal support orders
3. Combine adjusted gross incomes to get the total household income
4. Find the base obligation from the Ohio Child Support Guidelines schedule based on combined income and number of children
5. Add health insurance costs for the child and work-related childcare expenses
6. Add cash medical support if neither parent has access to affordable health insurance
7. Allocate proportionally — each parent's share is based on their percentage of combined income

Example Calculation

Key Factors in Ohio Calculations

Income Definition

Ohio considers all sources of income including employment income, self-employment income, disability benefits, Social Security benefits, unemployment compensation, workers' compensation, pension and retirement income, rental income, and income from any other source. The court may impute income to a parent who is voluntarily unemployed or underemployed.

Shared Parenting Deviation

Under Ohio law, when parents have a shared parenting arrangement where the child spends significant time with both parents, the court may deviate from the standard guideline calculation. The court considers the total parenting time, each parent's direct expenses for the child, and the overall fairness of the arrangement.

Cash Medical Support

When neither parent has access to affordable employer-provided health insurance, the court may order cash medical support. This is a set monthly amount added to the basic support obligation to cover anticipated uninsured medical expenses for the child.

Childcare Expenses

Work-related childcare costs are added to the basic support obligation and shared proportionally between parents. This includes daycare, after-school care, and summer programs that are necessary for a parent to maintain employment.

Minimum and Maximum Amounts

Ohio does not have a fixed statutory minimum or maximum child support amount. The guidelines are a rebuttable presumption — the calculated amount is presumed correct unless the court makes specific written findings that deviation is warranted. The court may deviate from guidelines if the standard amount would be unjust, inappropriate, or not in the child's best interest.

Ohio provides a self-support reserve that ensures the paying parent retains sufficient income to meet their own basic subsistence needs.

Modification and Enforcement

Modification

Either parent can request a modification by filing a motion with the court. Ohio requires a showing of a substantial and continuing change in circumstances, such as:

• Significant increase or decrease in either parent's income
• Change in custody or shared parenting arrangement
• Change in the child's needs or medical condition
• Emancipation of a child
• Change in healthcare or childcare costs

Enforcement

The Ohio Department of Job and Family Services, Office of Child Support enforces child support through:

• Income withholding orders
• Tax refund interception (state and federal)
• Driver's license suspension
• Professional and occupational license suspension
• Credit bureau reporting
• Property liens
• Contempt of court proceedings
• Passport denial for arrears exceeding $2,500

Get your Ohio child support estimate now: Use our free calculator to see what you might owe or receive under Ohio guidelines.