TaxationThe tax expense represents the sum of the tax currently payable and deferred tax.Current taxThe tax currently payable is based on taxable profit for the year. Taxable profit differs from net profit asreported in the profit and loss account because it excludes items of income or expense that are taxable or deductible in other years and it further excludes 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 reporting end date.Deferred taxDeferred tax liabilities are generally recognised for all timing differences and deferred tax assets arerecognised to the extent that it is probable that they will be recovered against the reversal of deferred taxliabilities or other future taxable profits. Such assets and liabilities are not recognised if the timing difference arises from goodwill or from the initial recognition of other assets and liabilities in a transaction that affects neither the tax profit nor the accounting profit.The carrying amount of deferred tax assets is reviewed at each reporting end date and reduced to the extent that it is no longer probable that sufficient taxable profits will be available to allow all or part of the asset to be recovered. Deferred tax is calculated at the tax rates that are expected to apply in the period when the liability is settled or the asset is realised. Deferred tax is charged or credited in the profit and loss account, except when it relates to items charged or credited directly to equity, in which case the deferred tax is also dealt with in equity. Deferred tax assets and liabilities are offset when the company has a legally enforceable right to offset current tax assets and liabilities and the deferred tax assets and liabilities relate to taxes levied by the same tax authority.Employee benefitsThe costs of short-term employee benefits are recognised as a liability and an expense, unless those costs are required to be recognised as part of the cost of stock or fixed assets.The cost of any unused holiday entitlement is recognised in the period in which the employee’s services are received. Termination benefits are recognised immediately as an expense when the company is demonstrably committed to terminate the employment of an employee or to provide termination benefits.Retirement benefitsPayments to defined contribution retirement benefit schemes are charged as an expense as they fall due.LeasesLeases are classified as finance leases whenever the terms of the lease transfer substantially all the risksand rewards of ownership to the lessees. All other leases are classified as operating leases.Assets held under finance leases are recognised as assets at the lower of the assets fair value at the dateof inception and the present value of the minimum lease payments. The related liability is included in thebalance sheet as a finance lease obligation. Lease payments are treated as consisting of capital andinterest elements. The interest is charged to the profit and loss account so as to produce a constantperiodic rate of interest on the remaining balance of the liability.