Filing for Dissolution in Union County

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

Union County, Ohio · Marysville

A dissolution is Ohio's agreed, no-fault path to ending a marriage. Both spouses sign a joint petition and a complete separation agreement, then attend a final hearing together at the Union County Court of Common Pleas - Domestic Relations Division. The deposit is $375 without minor children and $400 with minor children, paid before the final entry. With children, the case is dismissed if the co-parenting certificate is not filed within 90 days.

How do I file for dissolution in Union County, Ohio?

Both spouses sign a Petition for Dissolution (Ohio Form 17) and a complete Separation Agreement (Form 19) that resolves all property, debt, support, and — with children — custody, parenting time, and child support, then file with the Union County Clerk of Courts. With minor children, add Affidavits 3 and 4, the child-support worksheet, a IV-D application, and complete the co-parenting class. The deposit is $375 (no children) or $400 (with children), paid before the final entry. The case is dismissed if the co-parenting certificate isn't filed within 90 days. Both spouses attend the final hearing 30–90 days after filing.

Ohio Divorce by the Numbers

6 months Ohio residency required before you can file Source: Ohio Revised Code § 3105.03
90 days Residency in the county of filing (venue) Source: Ohio Civ. R. 3
30–90 days Typical time to finalize an uncontested dissolution Source: Ohio Revised Code § 3105.64
1 year Living separate and apart that qualifies as no-fault grounds Source: Ohio Revised Code § 3105.01

Compare Your Options for Ending a Marriage in Ohio

Path	Ends the marriage?	Agreement required?	Best when
Dissolution	Yes	Yes — on every term before filing	Both spouses agree on everything and want the fastest, lowest-cost path
Divorce (contested)	Yes	No	Spouses disagree on property, support, or parenting and need a judge to decide
Divorce (uncontested / default)	Yes	No	One spouse will not respond or cannot be located
Legal separation	No — you stay married	Optional	You need court orders but must stay married (religion, insurance, or benefits)
Annulment	Treated as never valid	No	The marriage was never legally valid (fraud, bigamy, underage, or incapacity)

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

215 W 5th St, Marysville, OH 43040, Marysville, OH 43040
Phone: (937) 645-3015
Hours: Monday–Friday (call the Clerk to confirm current hours)
Website: www.unioncountyohio.gov/departments/CommonPleasCourt

Dissolution is the right path if…

You and your spouse agree to end the marriage and on every term in writing.
You can divide all property and debt and (with children) agree on custody, parenting time, and support.
Both spouses are willing to sign the joint petition and attend the final hearing together.
You want the faster, lower-cost path and don't need the court to decide contested issues.

If you can't agree on everything, a divorce lets the court decide the contested issues. Compare divorce.

Filing Fees

$375 deposit without minor children · $400 with minor children, paid before the final entry · co-parenting certificate due within 90 days (with children) or the case is dismissed · confirm current amounts with the Clerk at (937) 645-3015

Forms & Filing Packets

Joint dissolution packet (no minor children) — $375 deposit

Both spouses sign the petition and separation agreement and file together, with the local Classification Form + UCD1.

Petition for Dissolution of Marriage (Ohio SC Form 17) — Both spouses file jointly, telling the court they have a complete agreement and want the marriage dissolved.
Separation Agreement (Ohio SC Form 19) — The contract that settles property, debt, support, and parenting. Both spouses must sign in front of a notary.
Affidavit of Income & Expenses (Ohio SC Affidavit 1) — Income, expenses, and basic financial information. Each party files their own. Must be notarized.
Affidavit of Property (Ohio SC Affidavit 2) — Lists every asset and debt. Required at filing.
Classification Form + UCD1 (Union County local cover & disclosure forms) — Union County's required local cover and disclosure forms that accompany a new divorce or dissolution packet. Download from the Common Pleas Court page and file them with your complaint or petition; confirm the current versions with the Clerk at (937) 645-3015.
Decree of Dissolution (Ohio SC Form 18) — Proposed final order that ends the marriage and incorporates the Separation Agreement.

Joint dissolution packet (with minor children) — $400 deposit (with children)

Add the children's affidavits, the support worksheet, a parenting plan, and a IV-D application. File the co-parenting certificate within 90 days or the case is dismissed.

Petition for Dissolution of Marriage (Ohio SC Form 17) — Both spouses file jointly, telling the court they have a complete agreement and want the marriage dissolved.
Separation Agreement (Ohio SC Form 19) — The contract that settles property, debt, support, and parenting. Both spouses must sign in front of a notary.
Affidavit of Income & Expenses (Ohio SC Affidavit 1) — Income, expenses, and basic financial information. Each party files their own. Must be notarized.
Affidavit of Property (Ohio SC Affidavit 2) — Lists every asset and debt. Required at filing.
Parenting Proceeding / UCCJEA Affidavit (Ohio SC Affidavit 3) — Required in any case with minor children. Lists where each child has lived for the last 5 years, confirming Ohio's UCCJEA jurisdiction.
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.
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.
Parenting Plan (Ohio SC Form 21) — Used when one parent will be designated residential parent and legal custodian.
Title IV-D Child Support Services Application — Opens a IV-D child-support case with the Union County Child Support Enforcement Agency so it can calculate, collect, and enforce support by wage withholding. Available from the Juvenile Clerk or CSEA at (937) 644-1010; confirm the current form before filing.
Classification Form + UCD1 (Union County local cover & disclosure forms) — Union County's required local cover and disclosure forms that accompany a new divorce or dissolution packet. Download from the Common Pleas Court page and file them with your complaint or petition; confirm the current versions with the Clerk at (937) 645-3015.
Co-Parenting Class Certificate of Completion — Proof that you finished Union County's online co-parenting class (about 4 hours, $49.99 per parent). File the certificate before the final hearing. In a dissolution the case is dismissed if the certificate is not filed within 90 days.
Decree of Dissolution (Ohio SC Form 18) — Proposed final order that ends the marriage and incorporates the Separation Agreement.

How to File Dissolution in Union County

Reach a full written agreement. Agree on dividing all property and debt and (with children) custody, parenting time, and support, and put it in a complete Separation Agreement (Form 19).
Prepare the joint petition. Both spouses sign the Petition for Dissolution (Form 17) plus Affidavits 1 and 2; with children add Affidavits 3 and 4, the worksheet, a parenting plan, and a IV-D application.
File with the deposit. File with the Clerk of Courts at 215 W 5th St, Marysville, and pay $375 (no children) or $400 (with children) before the final entry. Add the local Classification Form + UCD1.
Complete the co-parenting class (if children). Both parents take the online class and file the certificate within 90 days — the case is dismissed without it.
Attend the final hearing together. Both spouses appear at the final hearing 30–90 days after filing; the court reviews the agreement and signs the decree of dissolution (Form 18).

Union County Practice Notes

Dissolution is dismissed without the parenting certificate in 90 days. In a Union County dissolution involving minor children, both parents must file the co-parenting class certificate within 90 days of filing — the case is dismissed if they don't. Take the online class ($49.99 per parent) early so the certificate is on file before the final hearing.
Co-parenting class is required with minor children. Both parents in a divorce, dissolution, legal separation, or annulment with minor children must complete Union County's online co-parenting class (about 4 hours, $49.99 per parent) and file the certificate before the final hearing. In a dissolution the case is dismissed if the certificate is not filed within 90 days. The court suggests taking the class before mediation.
The separation agreement must be complete. A dissolution can only finalize if the separation agreement resolves everything — property, debt, spousal support, and (with children) custody, parenting time, and child support. If a term is missing or the agreement breaks down, the case can't be finalized as a dissolution; a divorce lets the court decide.

Frequently Asked Questions

How much does it cost to file for dissolution in Union County?: The Union County dissolution deposit is $375 without minor children and $400 with minor children, paid before the final entry. With minor children, both spouses must complete the co-parenting class — a dissolution is dismissed if the completion certificate is not filed within 90 days. Confirm current amounts with the Clerk at (937) 645-3015.
What parenting class is required in Union County, and what does it cost?: Both parents in a divorce, dissolution, legal separation, or annulment with minor children must complete Union County's online co-parenting class — about 4 hours, $49.99 per parent — and file the certificate before the final hearing. In a dissolution, the case is dismissed if the certificate is not filed within 90 days. The court suggests taking the class before mediation.
How much does it cost to file for divorce in Union County?: The Union County divorce deposit is $450 without minor children and $560 with minor children. If you can't afford the deposit, an Affidavit of Indigency (fee waiver) is available under Ohio Civil Rule 3(E). Service by publication is an added cost — you pay the newspaper directly. Confirm the current amounts with the Clerk at (937) 645-3015 before filing.
Can I e-file my case in Union County?: In Union County, attorneys must e-file. Self-represented (pro se) filers bring paper copies to the Clerk of Courts counter at 215 W 5th St, Marysville. Confirm the number of copies and the current deposit with the Clerk at (937) 645-3015.

Free Local Resources in Union County

Union County Clerk of Courts. Provides current filing fees, local forms, and filing instructions for custody, divorce, and dissolution cases. Call (937) 645-3015 or visit https://www.unioncountyohio.gov/departments/CommonPleasCourt before filing to confirm deposits and packet requirements.
Union County Child Support Enforcement Agency (CSEA). Union County's IV-D agency opens child-support cases, runs wage withholding, distributes payments, and enforces orders. File a IV-D Application when establishing or modifying support.

Related to your dissolution case

Child Support — Calculate, establish, or modify support under Ohio's guidelines.
Spousal Support — Pursue or respond to alimony requests during and after divorce.
Paternity & Custody — Establish parentage and build a parenting plan that protects your children.

Related guides

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

Divorce vs. Dissolution in Ohio: Which Path Is Right for You? — Divorce and dissolution both end an Ohio marriage, but they work very differently. Dissolution is a no-fault, agreed process; divorce is a lawsuit for couples who can't agree. Here's how to choose.
How Much Does a Divorce Cost in Ohio? — The cost of an Ohio divorce ranges widely depending on conflict and complexity. Here's what drives the price — court fees, attorney fees, experts — and how to keep it manageable.
How Long Does a Divorce Take in Ohio? — There is no single answer to how long an Ohio divorce takes — an agreed dissolution can finish in a couple of months, while a contested divorce may run a year or more. Here's what drives the timeline.
Dividing Property in an Ohio Divorce — Ohio divides marital property equitably — meaning fairly, not always equally. The first step is classifying every asset and debt. Here's how the process works.

Keep exploring

Ohio Dissolution guide — Statewide overview of dissolution in Ohio.
Columbus family law — Local attorneys and courts serving the Columbus metro.
Meet Stephanie Green — Managing Partner & Family Law Attorney at Gavvl Law.
Payment plans & financing — Flat fees with Gavvl Direct, Affirm, Klarna, or PayPal Pay Later.

Understand the cost

Divorce vs. Dissolution in Ohio — How the two paths compare on agreement, timeline, and cost.
Ohio Divorce Cost & Timeline by Path — Compare cost and timeline across every path to ending a marriage.

Call (844) 694-2885 or email support@gavvl.com.