Background
Sirena Dennis sought to modify Brian Lightle’s child support obligation in July 2024, claiming his income had increased substantially since his existing obligation of $1,353.53 per month was established. The parties shared joint legal decision-making of their child born in 2011, but Lightle exercised no parenting time. At an evidentiary hearing, both parents disputed income figures and childcare expenses. The superior court calculated Lightle’s new obligation at $1,963 per month, based on his adjusted gross income from a 2024 tax return (including self-employment income and VA disability benefits) plus $500 monthly in anticipated earnings from a 20% ownership stake in a newly formed LLC. The court included a $350 monthly childcare expense adjustment.
Lightle appealed, challenging the superior court’s findings regarding the parties’ income, adjustments for children from other relationships, and the childcare expense adjustment.
The Court’s Holding
The Arizona Court of Appeals vacated the child support modification award and remanded for recalculation. The critical error was an unsupported $4,900 deduction attributed to Mother for “other children,” despite her confirmed testimony that she had no children from other relationships. This erroneous deduction substantially skewed both the combined parental income figure and each party’s proportionate income-based share of the child support obligation—a fundamental component of Arizona’s Child Support Guidelines calculation.
On the merits of Father’s other challenges: the court upheld the inclusion of his anticipated future LLC income of $500 monthly as adequately supported by his testimony. However, the court noted that on remand, the trial court should address whether Father’s income calculation inadvertently included $44,000 from a non-recurring 401(k) liquidation reflected on his 2024 tax return, which was never formally admitted in evidence. The court also identified a clerical error: Mother’s hourly wage was listed as $28.24 instead of $28.84. Regarding the $350 childcare expense, the court deferred to the trial court’s credibility assessment that Mother’s testimony established both the expense and its necessity.
Key Takeaways
- An “other-child” income deduction under Arizona’s Child Support Guidelines requires an evidentiary foundation; an unsupported deduction, even if clerical in nature, mandates recalculation of the entire support obligation.
- Non-recurring income items (such as 401(k) liquidations) may be included in child support calculations at the trial court’s discretion, but must be clearly identified and supported by the record.
- Anticipated future business income from a new ownership interest may be included if the parent provides an adequate factual basis, even if the business is not yet profitable.
- Trial courts have discretion to credit parental testimony regarding necessary childcare expenses, and that determination is reviewed deferentially on appeal.
Why It Matters
This decision reinforces that accuracy in child support calculations is essential. Arizona’s Guidelines require careful application of income adjustments, and erroneous deductions—whether intentional or clerical—can substantially distort each parent’s proportionate obligation. The anomalous $4,900 “other-child” deduction here had no factual basis and significantly altered the outcome, illustrating the need for trial courts to ensure each component of the Guidelines calculation is supported by evidence and internally consistent with factual findings.
The opinion also clarifies the treatment of uncertain or emerging income sources: future business earnings may be included if reasonably projected, but trial courts should revisit such projections on remand to reflect actual performance when additional evidence becomes available. For practitioners, this case underscores the importance of careful review of child support worksheets for internal consistency and ensuring all deductions and income adjustments are explicitly tied to evidence in the record.
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