Mahaffy v Administrative Appeals Tribunal

In the Federal Court of Australia, Mahaffy sought to challenge a decision of the Administrative Appeals Tribunal (AAT). The Tax Practitioners Board had rejected Mahaffy's application for a renewal of registration as a tax agent. Mahaffy applied to the AAT for a review of the Tax Practitioners Board’s decision. The AAT granted a stay of the Tax Practitioners Board’s decision pending review. The Deputy President of the AAT later revoked the stay. Mahaffy appealed to the Federal Court to challenge the revocation of the stay.

The primary legal issue was whether the decision of the AAT to revoke the stay was an appealable decision. The court considered if the appeal was competent under section 44(1) of the Administrative Appeals Tribunal Act 1975 (Cth). The court had to determine if the interlocutory decision of the AAT was a final decision, as defined by the act, which would make it appealable.

The court held that the decision to revoke the stay was not a final decision within the meaning of the act. Consequently, the appeal was deemed incompetent. The court also noted that the appeal was not a special case warranting departure from the general rule. Accordingly, the appeal was dismissed. Additionally, the court ordered that Mahaffy pay the costs of the second respondent as agreed or assessed on an indemnity basis.