| (y) | Income tax |
Income tax for the year comprises current tax and movement in deferred tax assets and liabilities. Income tax is recognized in profit or loss except to the extent that it relates to items recognized in other comprehensive income, or directly in equity, in which case the relevant amounts of tax are recognized in other comprehensive income or directly in equity respectively. Current tax is the expected tax payable on the taxable income for the year, using tax rates enacted or substantively enacted at the end of the reporting period, and any adjustment to tax payable in respect of previous years. Deferred tax is provided using the balance sheet liability method, providing for all temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and their tax bases. The amount of deferred tax is calculated on the basis of the enacted or substantively enacted tax rates that are expected to apply in the period when the asset is realized or the liability is settled. The effect on deferred tax of any changes in tax rates is charged or credited to profit or loss, except for the effect of a change in tax rate on the carrying amount of deferred tax assets and liabilities which were previously recognized in other comprehensive income, in such case the effect of a change in tax rate is also recognized in other comprehensive income.
A deferred tax asset is recognized only to the extent that it is probable that future taxable income will be available against which the asset can be utilized. Deferred tax assets are reduced to the extent that it is no longer probable that the related tax benefit will be realized.
Deferred tax liabilities are generally recognized for all taxable temporary differences. Deferred tax liabilities are recognized for taxable temporary differences associated with investments in subsidiaries and associates, except where the Group is able to control the reversal of the temporary difference and it is probable that the temporary difference will not reverse in the foreseeable future.