NC Family Law Specialist study materials
NC Family Law Specialist study resources

Split Custody, Imputed Income, and Child Support Modification

NC Family Law Specialist · Put your knowledge to work in context.

All case studies

Split Custody, Imputed Income, and Child Support Modification

Father and Mother divorced in 2021. Mother has primary physical custody of younger child, age 12; Father has primary physical custody of older child, age 17, who moved in with him in June 2023. The existing order requires Father to pay $1,200 per month for both children. Father owns an LLC that pays him a $60,000 salary but also pays $30,000 of personal expenses, including his truck and insurance. Mother earns $75,000. Father files a modification motion in February 2024, seeking a reduction and contribution from Mother. Mother counterclaims, asking for private-school tuition of $12,000 and claiming Father is voluntarily underemployed. Father has missed two payments and owes $2,400. The children have different needs: the older child has a $300 monthly tutoring expense paid by Father.

1. Determine whether a substantial change has occurred and how the court should calculate Father's income.

Read the worked answer

The change in physical custody is a substantial change affecting the children's support. The older child now lives primarily with Father, while the younger child remains with Mother. That split-custody arrangement requires a new guideline calculation. For income, the court should add the $30,000 of personal expenses paid by the LLC to Father's $60,000 salary, because those payments reduce business income and benefit Father personally. The court should review the LLC's tax returns, ledgers, and depreciation to determine reasonable business expenses. If Father is voluntarily underemployed, the court may impute income based on his earning capacity, education, work history, and the local market. The court should use gross income, not net, and should make findings on the in-kind payments. Mother's $75,000 income is also relevant. The $2,400 arrearage is not a basis to deny modification, but it remains enforceable and cannot be retroactively erased.

2. Apply the North Carolina Child Support Guidelines to the split-custody arrangement. How are private school and tutoring treated, and when may the court deviate?

Read the worked answer

Split custody requires Worksheet C, which calculates each parent's support obligation for the child in the other parent's custody and then offsets the obligations. The court should determine each parent's adjusted gross income, apply the schedule, add work-related child care, health insurance, and extraordinary expenses, and then offset. Private-school tuition of $12,000 may be treated as an extraordinary expense if the school is appropriate to the child's needs and the expense is reasonable and necessary; the court should consider the child's educational history and the parties' ability to pay. The $300 monthly tutoring may also be an extraordinary expense if supported by evidence. The court may deviate from the guideline amount only with written findings that the guideline result is unjust or inappropriate, considering the child's needs, the parties' incomes, and the extraordinary expenses. The court should not simply split the tuition equally without findings. The final order should state each parent's obligation, the offset, and the effective date.

3. What are the limits on retroactive modification and what contempt findings must the court make for the $2,400 arrearage?

Read the worked answer

Child support modification is generally effective no earlier than the date the modification motion is filed. The court cannot retroactively reduce the $2,400 that accrued before Father filed in February 2024. Arrearages vest and may be enforced. For contempt, Mother must show a clear order, a willful violation, and Father's present ability to comply. If Father missed two payments but had the means to pay, the court may find civil contempt and order payment plus attorney fees. If he lacked the ability, contempt may not lie, but the arrearage remains a judgment. The court should distinguish between the pre-filing arrearage and the new prospective support amount. The modification order should set the new amount, address the arrearage repayment, and include income-withholding if appropriate.