Average Child Support in Ohio: Guideline Formula and Adjustments

There is no reliable average child support in Ohio, because the state calculates every order from both parents’ incomes using an Income Shares schedule rather than a flat rate. The schedule runs from a minimum order of $80 per month at the low end up to a combined parental income cap of roughly $336,467, above which courts set the amount at their discretion.¹ What you’ll actually pay or receive depends on what both parents earn, how many children are covered, and how parenting time is divided.

How Ohio Builds the Number

Ohio starts from the premise that a child should get the same share of parental income they would have had if the household stayed intact. Both parents’ incomes go into the worksheet, the combined figure is matched against a statewide schedule to produce a total annual obligation, and that total is then split between the parents in proportion to what each one earns.²

A quick example: if one parent earns $45,000 and the other earns $15,000, combined income is $60,000. The higher earner accounts for 75% of that total and the lower earner for 25%, so each is responsible for the same percentage of the schedule’s annual obligation. The parent with less parenting time usually pays their share to the other, since the custodial parent is already spending their own share directly on the child.

The governing law is Chapter 3119 of the Ohio Revised Code. Section 3119.021 holds the schedule itself, 3119.022 lays out the worksheet, and 3119.01 defines the income terms.³ The same rules apply whether the order comes from a domestic relations court or an administrative hearing through the Child Support Enforcement Agency.

What Counts as Income

Ohio defines gross income broadly. Wages, salaries, overtime, bonuses, commissions, self-employment profits, workers’ compensation, unemployment, disability, and retirement payments all feed into the calculation.⁴ The state’s calculator asks for three years of income so courts can see trends and avoid locking in a single unusual year.⁵

Overtime, commissions, and bonuses are treated specially: the court uses whichever is lower, the three-year average of that extra income or the most recent year alone.⁶ A good year won’t permanently inflate the order, and cutting back on overtime won’t quickly shrink it either. Overtime that a parent takes on to support a new spouse or child in another household can also be disregarded.

Gross income then gets reduced for certain items before the schedule applies: support already being paid for other children, court-ordered spousal support, local income taxes, and mandatory job-related costs like union dues. What remains is each parent’s adjusted gross income, which is the number that actually drives the calculation.

Imputed Income When a Parent Isn’t Working to Capacity

If a court finds a parent is voluntarily unemployed or underemployed, it will assign that parent a potential income based on what they could be earning. The statute lists factors the court weighs, including work history and education, the local job market and typical wages for available jobs, any physical or mental limitation, special skills or certifications, and a felony record that affects employability.⁴ Courts can also impute income from idle assets, like a large savings balance, using the local passbook savings rate.

An involuntary layoff with an active job search rarely triggers imputation. Leaving a $70,000 job to freelance at $30,000 without a solid reason often does, and the worksheet will treat you closer to the old number.

The Schedule: Floor, Ceiling, and Everything Between

The Basic Child Support Schedule is a long table maintained by the Ohio Department of Job and Family Services. One column lists combined annual parental income in $600 increments starting at $8,400, and six more columns show the total yearly obligation for one through six children at each income level. The total goes up as children are added, but the per-child share goes down.¹

Two hard limits bracket the schedule. Below $8,400 in combined annual income, the court issues a minimum order of $80 per month.⁷ Above $336,467, the court applies the schedule up to the cap and then uses its discretion for the excess, with the floor that the total can’t drop below what the schedule produces at the maximum.⁸

The Self-Sufficiency Reserve

Ohio builds a safety valve into the schedule for low-income paying parents. The self-sufficiency reserve is tied to 116% of the federal poverty level for a single person. When the paying parent’s income falls between $8,400 and that poverty threshold, the schedule uses a sliding-scale formula that phases the obligation in gradually instead of applying the full amount.¹ Below $8,400 combined, the $80 minimum applies.

Shared Parenting Reduces the Guideline Amount

When a court-ordered parenting plan gives each parent at least 90 overnights per year, the paying parent’s annual obligation is reduced by 10% automatically.⁹ That reduction isn’t the ceiling. Under the broader deviation statute, a court can move further from the guideline when the standard calculation would be unjust or against the child’s best interest, as long as it explains the deviation in writing.¹⁰

Other Reasons the Final Number Shifts

Section 3119.23 lists factors a court can use to deviate up or down from the schedule amount. The ones that most often change a real-world order include:

Special physical, psychological, or educational needs of the child that create unusual costs
Extraordinary travel expenses for parenting time, such as long-distance visitation
A large income disparity between the two households
Benefits from remarriage, where sharing expenses with a new partner frees up income
In-kind contributions a parent makes directly, like paying for lessons, sports, or clothing outside the order
Post-secondary education expenses one parent is paying for the child

The statute also includes a catch-all for “any other relevant factor.”¹¹ Documented, ongoing costs that the schedule clearly misses are the arguments that tend to succeed. One-time expenses rarely justify a permanent change.

Health Coverage, Cash Medical, and the 2% Fee

Every Ohio support order must address health insurance for the child. When one parent covers the child through an employer or private plan, the out-of-pocket premium cost (minus any subsidy like a premium tax credit) is credited against that parent’s income on the worksheet.¹²

Separately, every order includes a cash medical support amount for routine out-of-pocket costs like co-pays and prescriptions, split between the parents by the same income share percentages used for the base obligation.⁴ The dollar amount comes from administrative rules and varies by the number of children and the date of the order.

On top of the support itself, Ohio tacks on a 2% administrative processing charge, paid by the obligor, to cover routing payments through the Child Support Enforcement Agency.¹³ On a $500 monthly order, that’s another $10 taken from the paying parent’s paycheck.

Getting a Real Estimate for Your Case

Because the number depends entirely on specifics, the fastest way to see what your own order might look like is to run the figures through Ohio’s free calculator at ohiochildsupportcalculator.ohio.gov.⁵ The output won’t capture every deviation a judge might make, but it will give you a realistic guideline number.

To fill it out accurately, pull together:

W-2s, 1099s, and federal tax returns from the past three years, plus recent pay stubs for current earnings
Profit and loss statements if either parent is self-employed
Payroll deduction statements or policy documents showing what it costs to add the child to health insurance¹²
Receipts or contracts for work-related childcare
Any existing child support or spousal support orders either parent is already paying

With those numbers in hand, the calculator will show the guideline amount for your combined income and children, and you can see for yourself where in the schedule your situation falls. That’s a far better answer than any statewide average could offer.

1
Ohio Legislative Service Commission. Ohio Revised Code 3119.021 – Basic Child Support Schedule
2
Ohio Department of Job and Family Services. Child Support Guideline Manual
3
Ohio Legislative Service Commission. Ohio Revised Code Chapter 3119 – Calculation of Child Support Obligation
4
Ohio Legislative Service Commission. Ohio Revised Code 3119.01 – Calculation of Child Support Obligation Definitions
5
Ohio Child Support Calculator. Ohio Child Support Calculator
6
Ohio Legislative Service Commission. Ohio Revised Code 3119.05 – Determination of Gross Income
7
Ohio Legislative Service Commission. Ohio Revised Code 3119.06 – Minimum Child Support Order
8
Ohio Legislative Service Commission. Ohio Revised Code 3119.04 – Determination of Support Obligation Where Combined Gross Income Is Greater Than or Less Than Amounts Covered by Schedule
9
Ohio Legislative Service Commission. Ohio Revised Code 3119.051 – Reduction of Annual Individual Support Obligation
10
Ohio Legislative Service Commission. Ohio Revised Code 3119.24 – Shared Parenting Order Child Support Provisions
11
Ohio Legislative Service Commission. Ohio Revised Code 3119.23 – Deviation Factors
12
Ohio Legislative Service Commission. Ohio Revised Code 3119.30 – Determining Person Responsible for Health Care of Children
13
Ohio Department of Job and Family Services. Frequently Asked Questions