Grist and Grist (Child support)

The Federal Circuit Court of Australia considered an appeal by the liable parent, Mr. Grist, against a decision of an objections officer regarding his child support assessment. The dispute centred on whether Mr. Grist's child support liability should be retrospectively reduced due to a significant decrease in his income, which he attributed to his decision to cease full-time employment. The child support assessment was based on his previous higher earning capacity.

The primary legal issue before the court was whether it was just and equitable to depart from the assessed child support amount under section 117 of the *Child Support (Registration and Collection) Act 1988* (Cth). Specifically, the court had to determine if Mr. Grist's reduction in income was a "major purpose" of his decision to cease work, and if so, whether a retrospective departure from the assessment was warranted.

The court affirmed the decision of the objections officer, finding that Mr. Grist had not established that the reduction in his income was the major purpose of his decision to cease full-time employment. The evidence suggested that his decision was primarily motivated by personal reasons unrelated to deliberately reducing his child support obligations. Consequently, the court concluded that it was not just and equitable to retrospectively disturb the child support assessment.