Australasian Jam Co Pty Ltd v Federal Commissioner of Taxation

Australasian Jam Co Pty Ltd (the taxpayer) appealed to the High Court of Australia against a decision of the Federal Commissioner of Taxation (the Commissioner) concerning the valuation of its trading stock at the end of the income year. The Commissioner had amended the taxpayer's assessment, asserting that the taxpayer had failed to disclose material facts necessary for the assessment and had engaged in tax evasion.

The primary legal issues before the Court were whether the taxpayer's chosen method of valuing its trading stock was permissible under the Income Tax and Social Services Contribution Act 1936-1953 and its Regulations, and whether the Commissioner was justified in amending the assessment under section 170(2) of the Act due to alleged fraud or evasion. A further issue concerned the validity and effect of a certificate issued by the Commissioner under section 266 of the Act, stating his opinion that tax had been avoided due to fraud or evasion, which was presented as conclusive evidence of that opinion.

Fullagar J considered the provisions of section 31 of the Act and regulation 43 of the Income Tax and Social Services Contribution Regulations, which prescribed the permissible bases for valuing trading stock, namely cost price or market selling value. His Honour found that the taxpayer had not valued its trading stock on either of these statutory bases. Consequently, the Commissioner was entitled to amend the assessment under section 170(2) of the Act, as the taxpayer had failed to disclose material facts necessary for the assessment, leading to an under-assessment. The Court also held that the certificate issued by the Commissioner under section 266, stating his opinion that tax avoidance was due to fraud or evasion, was conclusive evidence of that opinion and was validly issued.

The appeal was dismissed, and the Commissioner's amended assessment was upheld.