Free estimate · Delaware
Delaware Child Support Calculator
A free estimate under Delaware's guidelines, with the math shown line by line.
- Guideline model
- Melson formula (self-support reserve, primary support, and standard-of-living adjustment)
- Effective
- 2026-02-01
Enter 25% of qualifying monthly nontaxable income.
Enter 25% of qualifying monthly nontaxable income.
Enter the documented 7% adjustment after the Form 509 Social Security wage-base limit.
Enter the documented 7% adjustment after the Form 509 Social Security wage-base limit.
This is an estimate for information only — not legal advice, and not a court calculation. Judges can and do deviate from guideline amounts. For the number a court would use, see Family Court Civil Rules 500-510.
This number is a snapshot. Child support depends on parenting time, and parenting time drifts — swapped weekends, changed holidays, summer schedules. Vireo keeps the custody calendar, messages and shared expenses in one timestamped record, so what actually happened is never a matter of memory.
See what Vireo tracks →How Delaware calculates child support
Calculate net income after the $1,600 self-support allowance; apply the other-dependent adjustment (70% when applicable); determine each parent's share of net income available for primary support; calculate primary support allowance ($800 for one child in a home plus $420 each additional, with half-child values for shared placement), allowable itemized primary expenses, and proportional primary obligation; calculate SOLA using the child-count percentage after the high-income offset; add primary and SOLA; subtract retained primary/SOLA, directly paid primary expenses, and parenting-time adjustment; cap by self-support protection; offset as applicable.
How income is counted: Reasonable monthly earning capacity. Gross wages, second-job and other income are adjusted for nontaxable income (25% of income exempt from federal income tax), documented self-employment adjustment, allowable pension/union/disability/other deductions, non-child health insurance, and the self-support allowance, as detailed by Rules 501–504 and Form 509i.
Source: Family Court Civil Rules 500–510 — Delaware Child Support Formula · Effective 2026-02-01
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