Income tax expense represents the sum of the tax currently payable and deferred tax.
The tax currently payable is based on taxable profit for the year. Taxable profit differs from profit as reported in the statement of comprehensive income because of items of income or expense that are taxable or deductible in other years and items that are never taxable or deductible. The company's liability for current tax is calculated using tax rates that have been enacted or substantively enacted by the end of the reporting period.
In general, deferred taxation is recognised in respect of timing differences that have originated but not reversed at the balance sheet date. However, deferred tax assets are recognised only to the extent that the directors consider that it is more likely than not that there will be suitable taxable profits from which the future reversal of the underlying timing differences can be deducted. Deferred taxation is measured on a non-discounted basis at the tax rates that are expected to apply in periods in which the timing differences reverse, based on tax rates and the law enacted or
substantively enacted at the balance sheet date.
Current or deferred tax for the year is recognised in profit or loss, except when they related to items that are recognised in other comprehensive income or directly in equity, in which case, the current and deferred tax is also recognised in other comprehensive income or directly in equity respectively.