Commissioner of State Revenue v Royal Insurance Australia Limited

The High Court of Australia heard an application for special leave to appeal by the Commissioner of State Revenue against Royal Insurance Australia Limited. The dispute concerned the Commissioner's obligation to repay stamp duty paid on workers' compensation insurance policies. Amendments to the Stamps Act had retrospectively exempted certain policies from stamp duty, leading to payments being made in error or in ignorance of these changes.

The legal issues before the Court were whether the Commissioner was under a duty to repay all amounts identified as overpayments, specifically in light of section 111 of the Stamps Act, and whether section 20A of the Limitation of Actions Act applied to the claims for repayment. The respondent argued that the Commissioner had a duty to repay once satisfied of an overpayment, while the Commissioner contended that the case was not appropriate for special leave, particularly concerning the application of the Limitation of Actions Act.

The Court was presented with arguments regarding the nature of the payments made by Royal Insurance. These payments fell into three categories: those made in respect of "liabilities policies" affected by a retrospective amendment to the Stamps Act, adjustments for premiums paid before a certain date, and duty paid on policy extensions. The respondent's primary submission was that the Commissioner was obliged to repay all overpayments under section 111 of the Stamps Act. The Commissioner, however, argued that no question arose under section 20A of the Limitation of Actions Act.