Child support is one of the most practically important issues in any divorce or separation involving children. In Ohio, child support is not left to guesswork — the state uses a formula-based calculation designed to produce a consistent result based on the incomes and circumstances of both parents. Understanding how the formula works, what it includes, and where courts have discretion can help you plan and protect your financial future.
The Ohio Child Support Guidelines
Ohio uses the Income Shares Model for calculating child support. The basic idea is that both parents should contribute to the financial support of their children in proportion to their respective incomes. The guidelines were significantly revised in 2019 and are found in Ohio Revised Code § 3119.
The calculation produces a basic child support obligation — the amount representing what parents in similar income brackets typically spend on their children. This amount is then divided between the parents proportionally based on their respective incomes.
Step 1: Calculate Each Parent's Gross Income
The calculation starts with each parent's gross income — income before taxes and most deductions. Ohio's definition of income is broad and includes:
- Wages, salaries, and tips
- Self-employment income (net of legitimate business expenses)
- Bonuses and commissions
- Overtime
- Rental income
- Unemployment compensation and workers' compensation
- Social Security and disability benefits
- Pension and retirement income
- Interest and dividends
If a parent is voluntarily unemployed or underemployed — earning less than they are capable of — the court may impute income to that parent based on their demonstrated earning ability, work history, or the local job market.
Step 2: Determine Adjusted Income
Certain deductions are subtracted from gross income to arrive at each parent's adjusted gross income. These deductions can include:
- Child support already being paid for children from another relationship
- Spousal support being paid pursuant to a court order in the current case
- Other court-ordered support obligations
Step 3: Apply the Schedule
The combined adjusted income of both parents is used to look up the combined basic support obligation from Ohio's child support schedule — a table that specifies support amounts based on combined income and number of children. Each parent's share of the combined obligation is then calculated proportionally.
Step 4: Add-Ons
Beyond the basic obligation, the court will typically add additional expenses:
- Health insurance premiums — the cost of covering the children on a parent's health insurance policy
- Work-related child care costs — daycare or after-school care expenses that allow a parent to work
- Extraordinary medical expenses — in some cases
These add-ons are divided between the parents proportionally and added to the basic obligation.
Parenting Time Credit
Ohio's guidelines provide a parenting time credit for the non-residential parent based on the number of overnight visits they have with the child per year. The more overnights the non-residential parent has, the greater the credit they receive — reflecting the fact that they are directly spending money on the child during those times.
This credit was a significant change introduced in the 2019 revision and often affects outcomes in cases where parents share substantial time with the children.
Can Parents Deviate From the Guidelines?
Yes, but only with court approval. A court can deviate from the guideline amount if applying it would be unjust or inappropriate. Factors that may support a deviation include:
- Special needs of the child
- Educational expenses
- A parent's significant obligations to children in another household
- A very high income level that produces a guideline amount far exceeding the child's actual needs
- Agreed-upon arrangements between parents that the court finds are in the child's best interest
Deviations are allowed but not automatic — the court must document its reasons.
Modifying Child Support
Ohio child support orders can be modified when there has been a change in circumstances — typically defined as a 10% or greater change in the calculated support amount from a new calculation using current incomes. Common triggers include job loss, a significant raise, a change in parenting time, or a change in the cost of the child's health insurance.
Either parent can file a motion to modify support. Until a modification is ordered by the court, the existing order remains in effect — you cannot simply reduce or stop payments based on an informal agreement.
Enforcement
Child support in Ohio is enforced through the Child Support Enforcement Agency (CSEA). Non-payment can result in wage garnishment, tax refund intercepts, suspension of driver's licenses, and in serious cases, contempt of court charges that can lead to jail time.
If you are behind on child support, it is important to act — through proper legal channels — rather than allowing arrears to accumulate. An attorney can help you understand your options.