The overall tax charge represents the sum of the tax currently payable and deferred tax.
Current and deferred tax are recognised in the profit and loss account for the year, except when they relate to items that are recognised in other comprehensive income or directly in equity, in which case current and deferred tax are recognised in other comprehensive income or directly in equity respectively. On the grounds of immateriality, deferred tax assets and liabilities are not discounted.
Current tax
The tax currently payable is based on taxable profit for the year. Taxable profit differs from profit as reported in the profit and loss account because it excludes items of income and expenditure that are not taxable or deductible, or that are taxable or deductible in other accounting periods. 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.
Deferred tax
Deferred tax is provided in full on timing differences which result in an obligation at the balance sheet date to pay more tax, or a right to pay less tax, at a future date, at rates expected to apply when they crystallise. Timing differences arise from the inclusion of items of income and expenditure in the taxation computation in periods different from those in which they are included in the financial statements.
Deferred tax assets are recognised to the extent that it is regarded as more likely than not that they will be recovered.