Vanderpool and Vanderpool (Child support)

This matter concerned an appeal by the father, Mr. Vanderpool, against an administrative assessment of child support made by the Child Support Registrar. The dispute centred on the Registrar's decision to disregard the father's election to estimate his income for the relevant child support period, and instead to use an estimated income figure based on his receipt of workers' compensation payments and income protection benefits.

The primary legal issue before the court was whether the Registrar had erred in exercising her discretion to disregard the father's income election. This required the court to consider the provisions of the *Child Support (Registration and Collection) Act 1988* (Cth) and the *Child Support Assessment Act 1989* (Cth) concerning the estimation of a liable parent's income, particularly where that parent is receiving payments such as workers' compensation or income protection benefits. The court also had to determine if the Registrar's decision was otherwise justified under the relevant legislative framework.

The court affirmed the Registrar's decision, finding that the Registrar had acted within her powers and had not erred in the exercise of her discretion. The court reasoned that the Registrar was entitled to consider the nature of the payments received by the father, which were designed to replace his ordinary income. The legislative provisions allowed for the estimation of income in circumstances where the Registrar was satisfied that the election made by the liable parent was not a reliable indicator of their true earning capacity. The court concluded that the Registrar had properly considered the available information and had made a reasonable assessment of the father's income for the purposes of child support.