Guideline Calculator

OHIO SUPPORT GUIDELINE

Ohio child support calculator & worksheet

Ohio Revised Code section 3119.021 uses a statutory income-shares formula on combined annual income rather than a simple published grid for every dollar.

Open Ohio worksheet

How to use this result: The calculation follows the state’s published guideline for the figures you enter. The court or agency issues the final order and may apply deviations or facts not entered here. This is educational information, not an official court calculation or legal advice.

Current module status

StateOhio
StatusActive base worksheet module
Guideline modelohio income shares annual formula
Primary income fieldCombined adjusted annual gross income

How Ohio child support law works

Legal starting point. Ohio Revised Code chapter 3119 uses a statutory child-support schedule and worksheet. The law incorporates income shares and a self-sufficiency reserve, so the calculation can require more than assigning a percentage to wages. Read Ohio Revised Code §§ 3119.01 and 3119.05.

How the guideline is calculated

The worksheet uses adjusted annual income and the child-count schedule, then allocates the obligation by income share. Low-income reserve comparisons, parenting-time reductions, cash medical support, insurance, child care, credits, split parenting, and deviations need the complete Ohio worksheet.

What this site’s worksheet covers

Uses Ohio Revised Code § 3119.021 basic child support schedule formulas and § 3119.05 income-share/self-sufficiency-reserve computation rules. The schedule applies to adjusted annual gross income and six child-count columns; for more than six children this base module uses the six-or-more column and flags the case. Ohio permits interpolation between schedule amounts; this module computes the statutory percentage formula directly from annual income rather than rounding to a printed row. If the paying parent’s annual individual income is within the self-sufficiency reserve treatment, this module compares the combined-income amount with the individual-income reserve amount and uses the lower applicable base obligation. Court-ordered parenting-time reductions, cash medical support, health insurance credits, child care, other-child credits, benefits received by the child, split parenting, deviations and the processing charge require the full Ohio worksheet.

Documents that make the worksheet more useful

Ohio sole/shared or split parenting worksheet with statutory adjustments. Gather the records that support the income, parenting-time, insurance, child-care, and other adjustment entries that apply to the family. The calculator applies the guideline formula described above and identifies any listed worksheet line it does not compute.

For a filing or agreement, complete the official court forms linked on this page. They use the same guideline structure explained here, and the court applies it to the facts of the case.

Before you enter your numbers

Does Ohio automatically use the latest overtime payment?

Ohio's income rules direct how overtime and bonuses are considered, including the statutory comparison involving prior earnings. A single unusually large or small paycheck does not establish that calculation. Parenting-time and low-income adjustments are separate worksheet steps after income has been determined.

Prepare this: Bring the current pay statement plus annual overtime and bonus totals for the prior three years. Identify ordered overnights separately for the parenting-time review.

Read the relevant official instructions: Ohio section 3119.05: overtime and bonus income.

These preparation notes explain one part of the state guideline. A new estimate does not change an existing order; a modification request does.

How Ohio cases actually get to a number

Ohio’s basic support is computed from the statutory formula and tables in R.C. 3119.021. Cash medical support, child-care, and parenting-time adjustments are additional 3119 steps. A neighboring state’s table is not a substitute.

Ohio Revised Code section 3119.021 uses a statutory income-shares formula on combined annual income rather than a simple published grid for every dollar. That is a different path from neighboring states that use another model, so do not import a table, percentage, or overnight credit from somewhere else.

Parenting time in Ohio

Ohio parenting-time adjustments depend on the overnight order. Extended parenting time is a statutory adjustment, not a courtesy. Shared-parenting decrees still start from the guideline worksheet.

Costs Ohio usually treats separately

  • Cash medical support
  • Private health insurance when available
  • Work-related child-care costs
  • Extraordinary expenses the court includes

When Ohio courts leave the guideline

R.C. 3119.23 lists deviation factors, including extended parenting time, a child’s special needs, and other support obligations. Run the guideline first.

Official Ohio forms to keep beside this guide

Ohio sole/shared or split parenting worksheet with statutory adjustments. The calculator applies the guideline formula described above and identifies any listed worksheet line it does not compute. The primary authority is the published Ohio source. Fill the official form from source documents. Use this page only to check that you chose the right Ohio path—primary versus shared, table versus percentage, add-ons versus basic support.

Where this is typically filed

Juvenile or domestic-relations divisions of the court of common pleas hear cases; CSEA handles IV-D. Use the current 3119.021 figures.

Questions specific to Ohio

Why doesn’t Ohio look like a simple table state?

The statute uses a formula on combined annual income plus later adjustments such as cash medical support.

Is cash medical support extra?

It can be a separate guideline component when private insurance is not providing the statutory coverage.

Does shared parenting automatically deviate?

Shared parenting is common and still starts from the guideline. Deviation needs 3119.23 findings.

Run the calculator

Open the free support calculator, select Ohio, complete the state worksheet, and print or export the output for review.