Dudfield and Odell (Child support)

This matter concerned an appeal by the father, Mr Dudfield, against an administrative assessment of child support made by the Child Support Registrar. The dispute centred on the Registrar's decision to accept an estimate of the father's income for the purposes of the child support assessment, rather than refusing to make an estimate and proceeding with a default assessment. The appeal was heard by the Federal Magistrates Court of Australia.

The primary legal issue before the Court was whether the Child Support Registrar had erred in accepting an estimate of the father's income when making the administrative assessment. Specifically, the Court had to determine if the Registrar had acted within the scope of their powers under the relevant legislation, and if the estimate itself was reasonable and properly made in the circumstances.

The Court considered the provisions of the *Child Support (Registration and Collection) Act 1988* (Cth) and the *Child Support (Assessment) Act 1989* (Cth) concerning the Registrar's power to estimate a liable parent's income. The Court found that the Registrar had a discretion to estimate income where a parent failed to provide sufficient information. However, this discretion was not unfettered and required the Registrar to act reasonably. In this instance, the Court determined that the Registrar had not properly exercised this discretion, as the information available did not support a reasonable estimate of the father's income. Consequently, the Court set aside the decision under review and substituted its own decision.