White v. White — Illinois appellate court affirms child-support calculation

Case
Christine K. White, n/k/a Christine K. Mackiewicz v. Toby White
Court
Appellate Court of Illinois, Fifth District
Judge
Justice Sholar; Justice Barberis; Justice Bollinger
Date Decided
November 4, 2026
Docket No.
5-26-0049, 5-26-0152 cons.
Topics
Child support; Parenting time; Income calculation
Source
Read the full opinion

Background

Christine White and Toby White divorced in 2007 and have one child. In February 2024, Toby sought to modify parental allocation and child support. Under a temporary order, the child primarily lived with Toby from February 27 through May 24, 2024; Christine thereafter resumed the majority of parenting time.

The circuit court calculated support separately for four periods reflecting changes in parenting time and Toby’s temporary mandatory overtime. It used Christine’s sworn financial affidavit reporting $6,800 in monthly gross income and Toby’s 2024 average monthly income of $4,730 for prospective support after his overtime ended. The resulting offsets left Christine owing Toby $3,748.99, and set Toby’s ongoing obligation at $150.92 per week.

The Court’s Holding

The appellate court affirmed. The circuit court properly calculated support according to the parenting arrangement actually in effect during each relevant period. Its calculation did not rest on the shared-parenting provision requiring each parent to exercise at least 146 overnights annually, so Christine’s argument based on Toby’s total 2024 overnights did not establish error.

The court also held that the circuit court did not deviate from the statutory guidelines and therefore did not need written findings supporting a deviation. Nor did it abuse its discretion in determining income: it could rely on Christine’s unamended sworn affidavit, and it properly accounted for Toby’s mandatory overtime while it occurred without projecting that temporary increase after the overtime ended.

Key Takeaways

  • A court may calculate modified child support in separate periods to reflect actual changes in parenting arrangements.
  • The annual 146-overnight shared-parenting threshold does not control where the court did not use the shared-parenting calculation.
  • A trial court may rely on an unamended financial affidavit and may treat temporary overtime as temporary when setting prospective support.

Why It Matters

The decision confirms that Illinois child-support calculations can track changing circumstances during the pendency of a modification petition rather than apply one annual parenting-time figure. It also underscores the importance of correcting financial disclosures promptly when a party contends that later tax records better reflect income.

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