Ohio Child Support Laws (2026): Guidelines & Calculator

Ohio calculates child support using an income shares model under ORC Chapter 3119, which requires both parents to contribute proportionally based on their combined gross income. The Basic Child Support Schedule under ORC 3119.021 sets the base obligation for one to six or more children, with adjustments for health insurance, child care, and parenting time. Use the Ohio child support calculator below to estimate a guideline amount, or open the full Ohio child support calculator to run a detailed estimate.

Child support in Ohio is governed primarily by Ohio Revised Code (ORC) Chapter 3119. The state uses an income shares model, which means both parents share financial responsibility for their children in proportion to their earnings. Ohio's child support system is administered through the Ohio Department of Job and Family Services (ODJFS) and local Child Support Enforcement Agencies (CSEAs).

This guide covers how Ohio calculates child support, how to apply, when support ends, how to modify an order, and what happens when a parent fails to pay.

How to Apply for Child Support in Ohio

The Ohio Department of Job and Family Services (ODJFS), through local Child Support Enforcement Agencies (CSEAs), provides services including establishing support orders, locating parents, establishing paternity, enforcing existing orders, and processing terminations.

To apply for services, you have several options:

• Call the Ohio child support hotline at 1-800-686-1556
• Schedule an appointment with your local CSEA office
• Download the official Ohio child support mobile app for iOS/Apple devices or Android/Google devices

Ohio child support ordinarily runs from the date the order is issued or from the filing date the court sets, but Ohio does allow support to reach back further in some cases. In a parentage action, ORC 3111.13(F)(2) directs the court to consider all relevant factors, including any monetary contribution either parent already made, in deciding whether to require a parent to pay for failing to support the child before the order was issued. ORC 3111.13(F)(3)(a) bars that back award only in a narrow situation: the child was over three years old when the parentage action was first filed, and the alleged father had no knowledge and no reason to know of his paternity. Separately, under ORC 3119.84, a court may modify payments that come due after notice of a modification petition but before it enters a final order. You may represent yourself or hire a family law attorney. Each county in Ohio has its own CSEA office that handles local cases.

Required Documents for Your Application

When applying for child support in Ohio, gather the following documents before your appointment:

• Photo ID and proof of residency
• Children's birth certificates
• Social Security cards for you and the children
• Last known address or whereabouts of your former partner
• Paternity test results (if available)
• Divorce or dissolution records
• Income documentation (pay stubs, tax returns, W-2 forms)
• Support payment history
• Property descriptions and asset information
• Health insurance information for all parties

Having these documents ready will help your CSEA office process your case more quickly.

Establishing Paternity in Ohio

Before a child support order can be established, paternity must be determined for children born outside of marriage. Under Ohio law, paternity can be established in three ways:

• Acknowledgment of Paternity Affidavit: Both parents voluntarily sign a sworn statement, typically at the hospital after the child's birth or at the local CSEA office
• Court Order: A judge determines paternity through legal proceedings, which may include genetic testing
• Administrative Order of Paternity: The CSEA conducts genetic testing and issues a paternity order without requiring a court hearing

Establishing paternity provides important legal rights and benefits. Fathers gain the ability to pursue custody and parenting time. The child gains access to medical insurance coverage, inheritance rights, veterans' benefits, and Social Security benefits. Fathers may also claim the child as a dependent on tax returns.

The CSEA may pay for genetic testing and seek reimbursement from the father if the test confirms paternity.

How Is Child Support Calculated in Ohio?

Ohio uses an income shares model under ORC Chapter 3119. This model is based on the principle that children should receive the same proportion of parental income they would have received if both parents lived together. To quickly estimate your obligation, use the Ohio child support calculator.

The calculation considers:

• Both parents' gross incomes from all sources
• The number of children covered by the order
• Medical and dental insurance costs for the children
• Child care expenses, including daycare
• Court-ordered parenting time
• Other adjustments specified in the guidelines

Step-by-Step Calculation Process

1. Determine each parent's gross annual income. Under ORC 3119.01, gross income includes wages, salaries, overtime, bonuses, commissions, self-employment income, rental and investment income, Social Security benefits (including disability), workers' compensation, unemployment benefits, pensions, spousal support received, royalties, trust income, and military pay (including base pay and allowances).
2. Identify excluded income. Benefits from means-tested government programs (Ohio Works First, SNAP, SSI, disability financial assistance) are not included. Mandatory wage deductions like union dues are also excluded, though taxes are not deductible.
3. Calculate the combined gross income of both parents.
4. Use the Basic Child Support Schedule (ORC 3119.021) to find the base support amount. The schedule covers combined incomes from $8,400 to $300,000 per year, in $600 increments, for one through six or more children.
5. Determine each parent's percentage of the combined gross income.
6. Allocate the support obligation proportionally based on each parent's income share.
7. Apply adjustments for health insurance premiums, child care costs, and parenting time credits.

Self-Sufficiency Reserve

Ohio law protects lower-income parents through a self-sufficiency reserve. Under ORC 3119.021, the reserve is set at 116% of the federal poverty level for a single person as reported by the U.S. Department of Health and Human Services for the most recent calendar year. Parents whose income falls below this threshold pay reduced support amounts calculated using a sliding scale. This ensures the paying parent retains enough income to meet basic living needs.

Parenting Time Adjustments

Ohio provides automatic adjustments based on the amount of parenting time the non-custodial parent exercises:

• 90 or more overnights per year: Under ORC 3119.051(A), the annual support obligation is automatically reduced by 10%. Under ORC 3119.051(B), a court may eliminate a previously granted 10% adjustment at the obligee's request if the obligor, without just cause, has failed to exercise the court-ordered parenting time.
• More than 90 overnights per year: Under ORC 3119.231(A), the court shall consider whether to grant an additional deviation under ORC 3119.22 for extended parenting time, the factor listed at ORC 3119.23(C). Granting the deviation is discretionary, but considering it is not, and it comes in addition to the 10% adjustment. The two thresholds are not identical: the 10% adjustment applies where parenting time equals or exceeds 90 overnights, while the duty to consider a deviation applies only where it exceeds 90.
• 147 or more overnights per year: Under ORC 3119.231(B), if the court does not grant that deviation, it must specify in the order the facts that are the basis for its decision

Official Calculation Tools

• Official Ohio Child Support Calculator provided by the Ohio Department of Job and Family Services
• Child Support Guideline Worksheets (JFS 07766), available through the Ohio child support portal

If the parents' combined annual income exceeds $300,000, which is the maximum guideline income on the schedule, ORC 3119.04 does not simply extend the schedule upward. The court, or the CSEA on an administrative order, sets the obligation on a case-by-case basis, considering the needs and the standard of living of the children and of the parents. The statute also sets a floor: the basic combined obligation must be no less than the amount that would have been computed for a combined annual income of $300,000, unless the court or agency determines that amount would be unjust or inappropriate and therefore not in the best interest of the child, obligor, or obligee, in which case it must enter that figure, determination, and findings in the journal. Contact your local CSEA or a family law attorney for guidance in these situations.

Ohio Child Support Worksheets

Ohio provides standardized worksheets to help calculate support obligations accurately:

• Sole/Shared Custody Worksheet: Used for most custody arrangements where one parent has primary physical custody or parents share custody
• Split Custody Worksheet: Used in rare situations where each parent has primary custody of one or more of the couple's children

The Guideline Manual (JFS 07766), available through the Ohio child support portal, provides detailed instructions for completing these worksheets. The higher-earning parent typically pays the larger share of support, and accurate income reporting is essential for a fair calculation.

Recent Law Changes

Ohio has made several significant updates to its child support laws in recent years.

House Bill 338 (Effective March 20, 2025)

This bipartisan legislation is one of the most significant recent changes to Ohio child support law. House Bill 338 amended ORC 3119.86 and related sections to allow courts to issue new child support orders for disabled children over 18 for the first time.

Before this change, Ohio courts could only continue an existing support order for a disabled child past age 18. If parents divorced or filed for support after the child had already turned 18, courts in many counties refused to establish a new order. HB 338 resolved this inconsistency statewide, ensuring that parents share financial responsibility for a disabled adult child regardless of when the support proceedings began.

The law did not change how support for disabled children is calculated. Courts still use the standard income shares formula, though judges may deviate upward from the guideline amount to meet the child's specific needs.

Other Recent Updates

• Low-Income Protection: Parents earning below the self-sufficiency reserve (116% of the federal poverty level for a single person) receive reduced support obligations under a sliding scale formula
• Parenting Time Credit: Parents exercising 90 or more overnights per year receive an automatic 10% reduction under ORC 3119.051(A). Where court-ordered parenting time exceeds 90 overnights, ORC 3119.231(A) requires the court to consider a further deviation. If overnights reach 147 or more and the court does not grant that deviation, it must specify in the order the facts behind that decision.
• Health Insurance Responsibility: Courts allocate health insurance costs between parents as part of the support calculation
• Automatic Reviews: The ODJFS reviews child support cases every 36 months and may recommend adjustments
• Guideline Schedule Reviews: Ohio law requires the child support schedule to be reviewed every four years. The most recent review was completed in 2023, with the next scheduled review expected around 2027.

How to Modify Child Support in Ohio

Either parent may request a modification of child support when circumstances change. Under ORC 3119.79, the court will recalculate the support obligation using the current schedule and worksheet.

The 10% Threshold

If the recalculated amount differs from the current order by more than 10% (either higher or lower), Ohio law considers this a substantial change in circumstances sufficient to justify modification. This is the statutory standard under ORC 3119.79.

Other Grounds for Modification

• Involuntary job loss lasting 30 or more consecutive days
• Significant change in either parent's income
• Mental or physical disability affecting earning capacity
• Incarceration with no assets or income
• Substantial change in health insurance costs
• Active military duty deployment
• Change in custody or parenting time arrangements
• Inadequate health insurance coverage for the child

How to Request a Modification

• Complete Form JFS 01849 "Request for an Administrative Order Review" through your local CSEA
• Contact the CSEA at 1-800-686-1556
• The Ohio Administrative Review and Adjustment Questionnaire can help you determine if you qualify

Important Modification Considerations

• The court will impute income to a parent who is voluntarily unemployed or underemployed based on their earning potential
• The court may deviate from the calculated guideline amount if the resulting figure would be unjust or inappropriate under ORC 3119.22
• Remarriage alone does not change the support obligation, but changes in household expenses may be considered
• Parents representing themselves should review the Ohio Administrative Code Rules at codes.ohio.gov

What Happens If You Do Not Pay Child Support?

Ohio takes child support enforcement seriously. Under ORC Chapter 3121, failure to pay court-ordered child support triggers multiple enforcement tools.

Administrative and Civil Enforcement

• Income Withholding: Under ORC 3121.03, support payments are deducted directly from the paying parent's wages, unemployment benefits, workers' compensation, veterans' disability benefits, and other income sources
• License Suspension: Sporting, recreational, driver's, and professional/occupational licenses may be suspended
• Passport Denial: If arrears exceed $2,500, the U.S. State Department may deny or revoke passport applications
• Credit Bureau Reporting: Unpaid support is reported to major credit bureaus, affecting the parent's credit score
• Tax Refund Garnishment: State, local, and federal income tax refunds may be intercepted and applied to arrears
• Property Liens: Liens may be placed on real estate and personal property
• Financial Account Seizure: Bank accounts and other financial assets may be seized

Contempt of Court

If a parent fails to pay, the receiving parent or the CSEA can petition the court for a contempt finding under ORC 2705.031, which governs who may bring the action and what the summons must tell the accused parent. The court will give the accused parent an opportunity to explain, and may order purge conditions requiring a specific payment by a set date. The penalties themselves are set by ORC 2705.05, which ORC 2705.031(E) points to:

• First offense: A fine of up to $250, up to 30 days in jail, or both
• Second offense: A fine of up to $500, up to 60 days in jail, or both
• Third or subsequent offense: A fine of up to $1,000, up to 90 days in jail, or both

Jail is imposed only when the court determines the parent has the ability to pay but willfully refuses. Under ORC 2705.031(E), a contempt penalty does not eliminate any past, present, or future support obligation.

Criminal Nonsupport

Under ORC 2919.21, Ohio punishes criminal nonsupport at increasing severity:

• First-degree misdemeanor (first offense): Up to 180 days in jail and/or up to $1,000 fine
• Fifth-degree felony: Applies if the parent has failed to pay for 26 or more weeks out of 104 consecutive weeks, or has a prior nonsupport conviction. Penalty: up to 12 months in prison and/or up to $2,500 fine
• Fourth-degree felony (repeat felony offenders): Applies to parents with a prior felony nonsupport conviction. Penalty: up to 18 months in prison

When Does Child Support End in Ohio?

Under ORC 3119.86, child support in Ohio generally continues until the child turns 18 years old. However, the law provides several exceptions:

• High school enrollment: If the child has not yet graduated from an accredited high school by age 18 and is still enrolled full time, support continues until the child graduates or turns 19, whichever comes first
• Disabled children: If the child has a physical or mental disability that prevents self-support, the court may order support to continue indefinitely. Under House Bill 338 (effective March 20, 2025), courts may now establish new support orders for disabled children even after they turn 18.
• Parental agreement: If the parents' divorce decree or separation agreement includes provisions for college tuition or other post-18 support, those terms are enforceable

Early Termination Triggers

Child support may end before the child turns 18 if the child:

• Marries
• Enlists in the armed forces
• Is otherwise legally emancipated by court order

Important Termination Rules

• Termination is not automatic. The paying parent must notify the CSEA and request termination when the child reaches the qualifying age or condition.
• Back support (arrears) must still be paid in full even after the support order terminates
• Parents who overpay may receive a refund through the payee's state tax offset
• ORC 3119.88 lists the events that end a child support order, including the child reaching 19 while no longer attending high school

Emancipation in Ohio

Ohio does not have a specific emancipation statute that allows minors to petition a court for emancipation. The age of majority in Ohio is 18 under ORC 3109.01.

However, a child may be considered emancipated before turning 18 through certain actions, such as getting married or enlisting in the armed services. In some cases, emancipation may arise in the context of a child support proceeding, where the court makes a finding that the child is self-supporting and no longer dependent on the parents.

If you believe emancipation applies to your situation, consult with a family law attorney to understand your options under Ohio law.

More Ohio Laws

• Ohio Alimony Laws
• Ohio Child Custody Laws
• Ohio Divorce Laws