Child Support in Seneca County

Reviewed by Stephanie Green · Managing Partner & Co-Founder · Last updated June 11, 2026

Seneca County, Ohio · Tiffin

Child support in Ohio is calculated under the 2024 Income Shares guidelines (R.C. Chapter 3119) and administered by the Seneca County Child Support Enforcement Agency (900 E. CR 20, Tiffin; (419) 447-5011). Where support is set depends on the family: inside a divorce or dissolution at the Domestic Relations Division for married parents, or in the Juvenile Court's parentage/custody case for never-married parents. Payments run through Ohio Child Support Payment Central, and direct payments between parents are treated as gifts.

How do I establish or change child support in Seneca County, Ohio?

Run the official Ohio Child Support Computation Worksheet, then file where your case belongs. Married parents set support inside the divorce or dissolution at the Domestic Relations Division and file a Title IV-D application; never-married parents establish support in the Seneca County Juvenile Court's parentage/custody case ($178 per case/child). To change an existing order, request a CSEA administrative review or file a motion — a post-decree motion ($350) in Domestic Relations or a modification ($163 per case/child) in Juvenile Court — with an updated worksheet and current income proof. Support is paid through the CSEA and Ohio Child Support Payment Central.

Ohio Child Support by the Numbers

2024 Year Ohio's updated Income Shares support schedule took effect Source: Ohio Revised Code § 3119.021
10% Change in the calculated amount that justifies a modification Source: Ohio Revised Code § 3119.79
3 years How often either parent can request an administrative review Source: Ohio Revised Code § 3119.60
Age 18 When support normally ends — or high-school graduation, whichever is later Source: Ohio Revised Code § 3119.86

What Counts in an Ohio Child Support Calculation

What the worksheet counts	Counts toward support?	Notes
Both parents' gross income	Yes	Wages, salary, commissions, bonuses, and self-employment earnings
Health insurance for the children	Yes	Credited to the parent who pays the premium
Work-related childcare	Yes	Daycare and after-school costs are added in
Parenting time	Yes	Adjustments apply for substantial or equal parenting time
Imputed income	Sometimes	Added when a parent is voluntarily unemployed or underemployed
A new spouse's income	No	Only the two parents' incomes are counted

Where to File: Seneca County Court of Common Pleas - Domestic Relations Division

Seneca County Justice Center, 103 E. Market Street, Tiffin, OH 44883, Tiffin, OH 44883
Phone: (419) 447-0671
Hours: Monday–Friday 8:30 a.m.–Noon and 1:00–4:30 p.m.
Website: senecaohcourts.gov/divisions/domestic-relations/
e-Filing: https://senecacountyclerk.org/eFile.php

Juvenile Branch (Never-Married Parents)

Seneca County Juvenile & Probate Court
103 East Market Street, Tiffin, OH 44883, Tiffin, OH 44883
Phone: (419) 447-4912
Hours: Monday–Friday 8:30 a.m.–4:30 p.m.

Child Support is the right path if…

You need to establish, change, or enforce a child-support order.
Your income or the other parent's income, or the parenting schedule, has changed.
You want support collected and enforced through the CSEA.
You can provide income documentation under R.C. 3119.05 (tax returns, pay stubs, insurance cost).

Filing Fees

Part of the $450 DR deposit (set in a divorce/dissolution) · $178 per case/child to establish in Juvenile Court · $350 DR post-decree motion or $163 per case/child Juvenile to modify · CSEA administrative review available · confirm amounts with the Clerk (419) 447-0671 or Juvenile Court (419) 447-4912

Forms & Filing Packets

Support inside a divorce or dissolution — Part of the $450 DR deposit

Support is set as part of the Domestic Relations case; file the support worksheet and a IV-D application with your packet.

Ohio Child Support Computation Worksheet (2024 Income Shares) — Run the official Ohio Child Support Calculator, print, and sign. Required any time the court sets or changes support.
Title IV-D Child Support Services Application (Seneca County) — Opens a case with the Seneca County CSEA so support is collected through wage withholding and Ohio Child Support Payment Central. Required whenever a support order is established (Local DR Rule 12.12).
Health Insurance Affidavit (Ohio SC Affidavit 4) — Discloses whether health insurance is available for the children through either parent's employer, so the court can order medical support.

Support for never-married parents (Juvenile Court) — $178 per case/child (new Juvenile case)

File the parentage/custody packet in the Seneca County Juvenile Court with the support worksheet; the CSEA administers collection.

Pro Se Packet for Custody / Visitation (Seneca County Juvenile Court) — The Juvenile Court's self-help packet for never-married parents (and non-parents) to establish or modify custody and parenting time. Pro se filers file in person or by mail; attorneys eFile at efile.henschen.com.
Ohio Child Support Computation Worksheet (2024 Income Shares) — Run the official Ohio Child Support Calculator, print, and sign. Required any time you ask the court to set or change support.
Health Insurance Affidavit (Ohio SC Affidavit 4) — Discloses whether health insurance is available for the children through either parent's employer, so the court can order medical support.

Modify an existing support order — $350 DR post-decree motion · $163 per case/child Juvenile

Request a CSEA administrative review, object to an administrative order, or file a motion to change support with an updated worksheet.

Motion for Change of Child/Medical Support, Tax Exemption, etc. (Seneca County) — Asks the court to modify child or medical support, the tax exemption, or other child-related expenses. File with an updated child-support worksheet and current income proof.
Objection to Administrative Order (Seneca County Juvenile Court) — Used to object to a CSEA administrative support order so the Juvenile Court reviews it. File within the time stated on the administrative order.
Ohio Child Support Computation Worksheet (2024 Income Shares) — Run the official Ohio Child Support Calculator, print, and sign. Required any time the court sets or changes support.

How to File Child Support in Seneca County

Run the worksheet. Use the official Ohio Child Support Computation Worksheet (2024 Income Shares) with both parents' income and the parenting schedule.
Identify the right court. Married parents set support inside the divorce/dissolution at Domestic Relations; never-married parents file in the Seneca County Juvenile Court.
Open a IV-D case. File a Title IV-D application so the Seneca County CSEA collects through wage withholding and Ohio Child Support Payment Central.
File or request a review. To change an order, request a CSEA administrative review or file a motion with an updated worksheet and current income proof.
Verify income. Bring tax returns, pay stubs, and proof of the health-insurance cost (R.C. 3119.05) to support your figures.

Seneca County Practice Notes

Support runs through the Seneca County CSEA. Child support is calculated under R.C. Chapter 3119 and paid through the Seneca County Child Support Enforcement Agency (900 E. CR 20, Tiffin; (419) 447-5011) and Ohio Child Support Payment Central, with the statutory administrative fee. Direct parent-to-parent payments are treated as gifts.
Income must be verified with documents. Support is calculated under R.C. Chapter 3119 using the 2024 Income Shares worksheet, and parents must verify income with documents under R.C. 3119.05 (tax returns, pay stubs, proof of health-insurance cost). A child-support worksheet must accompany any entry establishing or modifying support (Local DR Rule 12.12). Reasonable/ordinary medical expense is $100 per child per year; amounts above that are split by the support percentage.
Changes based on the parents living together or apart wait six months. In Juvenile cases, a motion to terminate or reinstate support based on the parties' changed living arrangement is addressed only after six months of living together or apart (Juvenile Local Rule 9.02).

Frequently Asked Questions

Who handles child support in Seneca County?: The Seneca County Child Support Enforcement Agency (CSEA), 900 E. CR 20, Tiffin; (419) 447-5011, establishes, modifies, and enforces support. Payments run through Ohio Child Support Payment Central, support is calculated under R.C. Chapter 3119, and direct parent-to-parent payments are treated as gifts. Opening a case requires a Title IV-D application.
What are the Juvenile Court filing fees in Seneca County?: Under Appendix A to the Juvenile Local Rules (effective Feb. 1, 2026): a new civil or paternity case is $178 per case/child; a custody, support, shared-parenting, parenting-time, or tax-exemption modification in an existing case is $163 per case/child; a contempt citation is $163 per case/child; the Guardian ad Litem deposit is $1,500; and a home-investigation deposit is $1,000. Confirm current amounts with the Juvenile Court at (419) 447-4912.
What is a Title IV-D application and why do I need one?: A Title IV-D application opens a child-support case with the Seneca County CSEA. Once opened, CSEA collects support through automatic wage withholding, distributes it to the receiving parent, and can enforce the order through license suspension, tax intercept, credit reporting, and contempt referrals. Filing the IV-D application is standard whenever a child-support order is established (Local DR Rule 12.12).
What does it take to modify a custody or support order in Seneca County?: File the motion in the existing case — divorce-decree matters stay in the Domestic Relations case (continuing jurisdiction), and never-married-parent matters go back to the Juvenile Court. A motion to change custody or a shared-parenting plan must specifically identify the alleged change of circumstances; merely asserting 'a change has occurred' is not sufficient (Local DR Rule 12.09; Juvenile Local Rule 7.04(E)). Custody changes follow R.C. 3109.04(E); support changes need an updated worksheet, and a CSEA administrative review is also available.

Free Local Resources in Seneca County

Seneca County Clerk of Courts. Processes Domestic Relations filings and provides current deposits, local forms, and filing instructions. Legal Department, 103 E. Market Street, Suite 101, Tiffin, OH 44883 · (419) 447-0671 · fax (419) 443-7919 · https://senecacountyclerk.org/ (online Court Case Inquiry, eFile, and payments). Confirm deposits and packet requirements before filing.
Seneca County Domestic Relations Forms. Official Domestic Relations packets and forms for divorce, dissolution, legal separation, post-decree motions, and protection orders. https://senecaohcourts.gov/divisions/domestic-relations-forms/ · Local Rules: https://senecaohcourts.gov/additional-resources/#rules
Seneca County Child Support Enforcement Agency (CSEA). Seneca County's IV-D agency opens child-support cases, runs wage withholding, distributes payments, and enforces orders. 900 E. CR 20, Tiffin, OH 44883 · (419) 447-5011. File a IV-D Application when establishing or modifying support.
Seneca County Victim's Assistance Program. Helps prepare DVCPO and Civil Stalking protection-order petitions and connects petitioners with a victim advocate. 79 S. Washington Street, Tiffin, OH 44883 · (419) 448-5070. First Step Domestic Violence Shelter: (419) 435-7300. Emergencies: 911.

Related to your child support case

Paternity & Custody — Establish parentage and build a parenting plan that protects your children.
Post-Decree Modification — Update custody, support, or parenting orders after your case ends.
Spousal Support — Pursue or respond to alimony requests during and after divorce.

Related guides

In-depth, attorney-written guides on child support and related Ohio family law topics.

Child Support Calculation in Ohio: How the Formula Works — Ohio calculates child support with the income shares model, combining both parents' incomes to set a shared obligation. Here's how the formula works and what changes the bottom line.
How to Modify Child Support in Ohio — Child support orders aren't permanent. When income or circumstances change substantially, Ohio lets you modify support — through a CSEA review or a court motion. Here's how.

Keep exploring

Ohio Child Support guide — Statewide overview of child support in Ohio.
Toledo family law — Local attorneys and courts serving the Toledo metro.
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Call (844) 694-2885 or email support@gavvl.com.