Delaware Child Support Guidelines: How Support Is Calculated

Delaware Uses the Melson Formula — Here Is What That Means for You

Most states calculate child support by adding both parents' incomes together. Delaware takes a different path. Delaware Family Court calculates child support using the Melson Formula, a method that first reserves a basic self-support allowance for each parent before calculating what flows to the children. The principle behind it is straightforward: a parent who cannot cover their own minimum needs cannot realistically contribute to a child's needs either.

After that self-support reserve, the formula identifies each child's primary support needs. Any net income remaining is then divided between the parents in proportion to their earnings, and a portion of that goes to the children as a standard-of-living adjustment. The Melson Formula result is treated as a rebuttable presumption — the court will order that amount unless a party demonstrates good reason to deviate from it. Delaware Family Court – Child Support (Melson Formula); Family Court Civil Rules 500–510

What the Court Considers Beyond the Numbers

Delaware law directs the court to look at more than income figures alone. Under 13 Del. C. § 514, the court weighs:

• Each parent's health
• Relative economic condition and overall financial circumstances
• Each parent's income — and any income the children themselves receive
• The manner of living the parties are accustomed to
• The general equities of the situation

These factors give a judge room to adjust a result that the formula alone might not make fair. A child with significant medical needs, a parent whose income is seasonal, or a family whose standard of living differs sharply from what the numbers suggest can all be addressed within this framework.

How a Child Support Case Gets Started

The Division of Child Support Services (DCSS), part of Delaware Health and Social Services, is the state's federally required child support agency. Under federal law (42 U.S.C. § 654), every state must operate a program like DCSS, and federal funding is conditioned on the state adopting standardized child support enforcement tools. Most parents open a case directly through DCSS, which files the petition, applies the Melson Formula, and enforces the resulting order — generally at low or no cost. Delaware Health and Social Services – Division of Child Support Services

First-time petitioners generally must attend mediation before going before a judge. At mediation, a trained mediator applies the formula to both parents' financial information. If the parents agree on the result, that agreement becomes a court order. If they cannot reach agreement, the case proceeds to a hearing before a Family Court Commissioner, who decides the amount. Delaware Family Court – Child Support

How Child Support Is Enforced

Income withholding — commonly called wage attachment — is the most common enforcement method in Delaware. Once an order is in place, the paying parent's employer is directed to deduct support from each paycheck and send it to the state, which then forwards it to the receiving parent. Delaware Family Court – Child Support

Federal law sets the framework for enforcement tools used nationwide. Under 42 U.S.C. § 666, states must have procedures for income withholding, property liens, and license suspension covering driver's licenses, professional licenses, and recreational licenses. Federal wages and benefits can also be garnished (42 U.S.C. § 659), and the federal government can intercept a paying parent's federal tax refund to collect past-due support (42 U.S.C. § 664).

One critical federal rule — sometimes called the Bradley Amendment (42 U.S.C. § 666(a)(9)(C)) — bars any court from retroactively reducing child support that has already come due. Once support accrues, it is owed in full. Only a prospective (future) modification can change what a parent must pay going forward.

When You Can Ask to Change an Order

Delaware has two separate standards for modification requests, depending on how long it has been since the last order:

• After 30 months (2.5 years): You may petition for modification for any reason. You do not need to show a dramatic change in life circumstances — the passage of time alone is enough to open the door. Delaware Division of Child Support Services – Modification of Existing Child Support Orders
• Within 30 months: You must show a substantial change in circumstances, and the recalculation must result in a change of 10% or more before the court will grant the modification. A small income shift will generally not be enough. Delaware Division of Child Support Services – Modification of Existing Child Support Orders

Regardless of when you file, a modification cannot reach back in time. Delaware Family Court has continuing jurisdiction to modify an order prospectively, but an order cannot be modified retroactively — the earliest effective date for any change is the date the other party received notice of your pending petition. 13 Del. C. § 513(d)

Time-sensitive: If your income drops or your expenses rise significantly, file your modification petition as soon as possible. You cannot recover overpayments for time that passed before the other parent was served notice of your petition — not from the date you decided to act, but from the date they actually received notice.

When Child Support Ends

Under 13 Del. C. § 517, Delaware child support terminates by operation of law when all minor children under the order reach age 18. There is one important exception: if a child turns 18 but remains enrolled in high school, support continues until the child either receives a diploma or turns 19 — whichever happens first.

Even though termination happens by operation of law, it is worth confirming with DCSS or the court that the order is formally closed once the last child ages out. This can prevent disputes over payments made or missed after the cutoff date.

What If a Parent Lives in Another State?

Delaware has adopted the Uniform Interstate Family Support Act (UIFSA), as have 49 other states and the District of Columbia. Federal law (28 U.S.C. § 1738B) requires every state to recognize and enforce child support orders issued by other states, and it sets rules for which state controls modification when the parents live apart. In most cases the state that issued the original order keeps the authority to modify it as long as one parent or the child still lives there. DCSS can coordinate with the other state's IV-D agency when enforcement crosses state lines.

Can Bankruptcy Wipe Out Child Support?

No. Federal bankruptcy law (11 U.S.C. § 523(a)(5)) makes child support — along with alimony — non-dischargeable. A parent who files for bankruptcy cannot use it to erase past-due support. Child support also sits at the top of the payment priority list under 11 U.S.C. § 507(a)(1), meaning it is paid before most other unsecured debts in a bankruptcy proceeding.

What You Can Do in Delaware — Step by Step

1. Open a case through DCSS. Visit dhss.delaware.gov/dcss or contact the Division of Child Support Services directly. DCSS handles most of the paperwork, applies the Melson Formula, and enforces orders at low or no cost to you.
2. Gather financial documents before mediation. Bring recent pay stubs, tax returns, proof of health insurance premiums, and documentation of work-related child-care expenses. The formula depends on accurate income figures from both parents.
3. Attend mediation prepared to evaluate the result. Know your monthly income and your children's basic expenses so you can assess whether the calculated figure is accurate before agreeing or requesting a hearing before a Commissioner.
4. File a modification petition promptly if your situation changes. Do not wait. The effective date of any change runs from when the other parent was served notice of your petition — not from the day you decided you needed a change.
5. Track each child's 18th birthday and high school enrollment. Know when support is set to end under Delaware law and confirm with DCSS that the order is closed once the last child ages out, to avoid overpayment or collection disputes.
6. If the other parent lives out of state, contact DCSS about coordinating under UIFSA. Delaware can work with the other state's child support agency to establish, enforce, or collect on an existing order.

This article is for general informational purposes only and is not legal advice. Delaware family law can change and individual circumstances vary widely. Consult a licensed Delaware attorney or contact DCSS directly for guidance specific to your situation.