Stocks Stocks includes radios and accessories. Stocks are valued at the lower of cost and net realisable value, after making due allowance for obsolete and slow moving items. Taxation Taxation for the year comprises current and deferred tax. Tax is recognised in the Income Statement, except to the extent that it relates to items recognised in other comprehensive income or directly in equity. Current or deferred taxation assets and liabilities are not discounted. Current tax is recognised at the amount of tax payable using the tax rates and laws that have been enacted or substantively enacted by the balance sheet date. Deferred tax Deferred tax is recognised in respect of all timing differences that have originated but not reversed at the balance sheet date. Timing differences arise from the inclusion of income and expenses in tax assessments in periods different from those in which they are recognised in financial statements. Deferred tax is measured using tax rates and laws that have been enacted or substantively enacted by the year end and that are expected to apply to the reversal of the timing difference. Unrelieved tax losses and other deferred tax assets are recognised only to the extent that it is probable that they will be recovered against the reversal of deferred tax liabilities or other future taxable profits. Hire purchase and leasing commitments Rentals paid under operating leases are charged to profit or loss on a straight line basis over the period of the lease. Pension costs and other post-retirement benefits The company operates a defined contribution pension scheme. Contributions payable to the company's pension scheme are charged to profit or loss in the period to which they relate. Leasing and hire purchase commitments Assets held under finance leases and hire purchase contracts are capitalised in the balance sheet and are depreciated over their estimated useful economic lives. The interest element of the rental obligations is charged to the profit and loss account over the period of the lease so as to produce a constant periodic rate of charge on the balance of capital repayments outstanding. Lease payments under operating leases, where substantially all the risks and benefits remain with the lessor, are charged as expenses in the periods in which they are incurred.