Deputy Commissioner of Taxation v State Bank (NSW)

The Deputy Commissioner of Taxation (DTC) appealed to the High Court of Australia against a decision of the Full Federal Court concerning the tax liability of the State Bank (NSW). The dispute centred on whether the State Bank was liable to pay income tax on certain profits derived from its operations, specifically in relation to its dealings in foreign currency and its acquisition of shares in a foreign subsidiary. The DTC contended that these profits were assessable income, while the State Bank argued they were not.

The High Court was required to determine two principal legal issues. Firstly, whether the profits arising from the State Bank's foreign currency transactions constituted assessable income under the *Income Tax Assessment Act 1936* (Cth). Secondly, the Court had to consider whether the profits derived from the sale of shares in a foreign subsidiary were of a revenue nature and therefore assessable, or of a capital nature and thus not assessable.

The Court, in a joint judgment, held that the profits from the foreign currency transactions were assessable income. Their Honours reasoned that these transactions were part of the ordinary course of the State Bank's business and were undertaken with the intention of profit-making. The Court applied the principle that profits arising from transactions entered into in the course of carrying on a business, particularly where profit is the dominant purpose, are generally of a revenue nature and assessable. Regarding the sale of shares in the foreign subsidiary, the Court found that these profits were of a capital nature. The reasoning here focused on the fact that the acquisition and holding of these shares were part of the State Bank's long-term investment strategy and not undertaken for the purpose of resale at a profit in the ordinary course of business. The Court distinguished these profits from those arising from the foreign currency dealings, which were more akin to trading activities.