ACN 005 057 349 Pty Ltd v Commissioner of State Revenue

ACN 005 057 349 Pty Ltd challenged a land tax assessment by the Commissioner of State Revenue, claiming the assessment was based on duplicate property, leading to an overpayment of tax. The case was heard in the Supreme Court of Victoria. The taxpayer argued that the overpayment was discovered outside the statutory period for recovery and that the moneys were paid under a mistake of law. The primary issue for the court was whether the taxpayer could bring a common law restitutionary claim for the overpayment when statutory objection and other recovery procedures were not utilised. Additionally, the court needed to determine if mandamus was available to compel the Commissioner to amend the land tax assessments and refund the alleged overpayment.

The court examined the applicability of statutory provisions and the common law to the taxpayer's claims. It considered the arguments regarding the time limits for recovery and the availability of restitutionary relief. The court found that the statutory period for objecting to the land tax assessment had expired, and therefore, the statutory recovery procedures were not available. However, the court recognised that a common law restitutionary claim could be made for moneys paid under a mistake of law, provided the action was brought within the limitation period. The court also considered whether mandamus could be used to compel the Commissioner to amend the land tax assessments.

In determining the availability of mandamus, the court noted that the Commissioner had discretion under the Land Tax Act 1958 (Vic) to amend assessments. The court held that mandamus was not available to compel the exercise of this discretion unless there was a clear legal right to the relief sought. The court found that the taxpayer had not demonstrated a clear legal right to a refund, and therefore, mandamus was not available. Regarding interest, the court held that compound interest could not be awarded as part of a restitutionary claim at common law. However, simple interest could be awarded under the court's equitable or statutory jurisdiction.

The court ultimately concluded that the taxpayer's common law claim for restitution was barred by the Limitation of Actions Act 1958 (Vic). The court also found that mandamus was not available to compel the Commissioner to amend the land tax assessments. Consequently, the taxpayer's claim was dismissed.