Commissioner of Taxation v Rigoli

The case of Commissioner of Taxation v Rigoli involved a dispute between the Commissioner of Taxation and Mr Rigoli, concerning income tax assessments made under the Income Tax Assessment Act 1936. Mr Rigoli objected to these assessments, arguing they were excessive. The matter was initially determined by the Administrative Appeals Tribunal (AAT), which dismissed his objections. Dissatisfied with this outcome, Mr Rigoli appealed to the Federal Court of Australia.

The central legal issue before the Court was whether Mr Rigoli had discharged the burden of proving that the tax assessments were excessive, as required by section 167 of the Act. The Court needed to consider the burden of proof in such objections, distinguishing between the assessment processes under sections 166 and 167. Mr Rigoli argued that merely challenging the basis of the assessment was sufficient to discharge the burden of proof, a claim the Commissioner contested. Furthermore, Mr Rigoli submitted that concessions made by the Commissioner constituted probative evidence that the assessments were excessive, a proposition also rejected by the Commissioner.

The Court held that Mr Rigoli had not discharged the requisite burden of proof. The Court clarified that the taxpayer must prove the actual taxable income to establish that an assessment is excessive, not just challenge the basis of the assessment. The concessions made by the Commissioner did not equate to probative evidence of excessiveness. Consequently, the Court found that the AAT had erred in law, as it had not correctly applied the principles of burden of proof under section 167. The appeal was allowed, the AAT's decision was set aside, and the matter was remitted back to the AAT for reconsideration in light of the Court's findings.