Tony Sadler Pty Ltd v Sadler

Tony Sadler Pty Ltd (the applicant) sought leave to appeal to the High Court of Australia against a decision of the Full Court of the Federal Court of Australia. The dispute concerned the applicant's entitlement to a refund of income tax paid under protest. The applicant had been assessed for income tax for the 1979 income year, and subsequently paid this tax under protest, arguing that the assessment was invalid. The Federal Court had dismissed the applicant's appeal against the Commissioner of Taxation's assessment.

The primary legal issue before the High Court was whether the applicant was entitled to recover the income tax paid under protest, notwithstanding the validity of the assessment. This involved a consideration of the principles governing the recovery of taxes paid under protest, particularly in light of the statutory scheme for income tax assessment and recovery. The court also had to determine the effect of the applicant's failure to pursue available avenues of appeal against the assessment itself.

Deane and Gaudron JJ held that the applicant was not entitled to recover the tax paid under protest. Their Honours reasoned that the statutory scheme for income tax, as established by the *Income Tax Assessment Act 1936* (Cth), provided a comprehensive framework for the assessment and recovery of tax. Once an assessment had been made and was no longer subject to challenge or appeal, it became conclusive and irrecoverable, even if paid under protest. The court emphasised that the right to recover tax paid under protest was a common law right that had been superseded by the statutory provisions, which did not preserve such a right in circumstances where the assessment had become final.

The High Court dismissed the application for leave to appeal.