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Ohio Child Support Calculator

General information, not legal advice.

How Ohio sets child support

Ohio sets child support by the income shares method under ORC 3119.01. The rule has been in force since June 1, 2023.

Coverage
Calculated by the support engine
Method
income shares
Source
ORC 3119.01, 3119.021, 3119.022, 3119.04, 3119.05, 3119.051, 3119.06, 3119.30; OAC 5101:12-1-17 (eff. 2026-04-01) and 5101:12-1-99; JFS 07767/07766/07768/07769
In force from
June 1, 2023
Rule version
2023-06-01
Inputs it needs
Children, Parent A annual income, Parent B annual income, Payor
Optional inputs
Between rows, Other children A, Other children B, Health premium paid by A, Health premium paid by B, Spousal support paid by A, Spousal support paid by B, Overnights 90 A, Overnights 90 B, Derivative benefits A, Derivative benefits B, Child care, Child care tax credit annual

Rule details as of 2026-10-25. The calculator above reads the current rule. Where the rule gives no formula, no figure is shown.

Turn this estimate into a brief for your case

Upload your documents and get a sourced brief: your key facts, support figures with every step shown, and your state’s rules.

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