63Spire Healthcare Limited Partnershipb) The terms and conditions of loans from the ultimate parent undertaking and management are as follows:MaturityInterest ratePrincipal drawn£000Carrying amount after issue costs and including interest accrued2010£000Carrying amount after issue costs and including interest accrued2009£000Ultimate parent undertaking - Spire 1August 203712%487,807503,689449,722Ultimate parent undertaking - Spire 2March 203812%90,25198,13887,521578,058601,827537,243The Group has available the following lines of credit:. £56 million acquisition/capex facilities, of which £11.1 million was undrawn as at 31 December 2010. £55 million revolving credit facilities, of which £17.7 million have been utilised in the form of guarantees, letters of credit and bank loans and £37.3 million was undrawn as at 31 December 201016. Provisions2010£0002009£000At 1 January 2010 1,7901,266Acquired on acquisition314-Charge for the year111,043Utilised during the year(973)(519)At 31 December 2010 1,1421,790The 2010 provision acquired on acquisition relates to leases for the London Fertility Centre. In 2009 other provisions comprised restructuring costs in respect of onerous tenancy contracts for the Manchester office and the onerous tenancy contracts in respect of two regional distribution centres following the decision to centralise warehousing activities to one National Distribution Centre in 2009.

64Spire Healthcare Annual Review 2010Spire Healthcare Limited PartnershipNotes to the financial statementsFor the year ended 31 December 201017. Deferred taxationDeferred tax liabilities/(assets) are analysed as follows:2010£0002009£000Temporary differences on:Property, plant and equipment313,412313,357Derivative financial instruments(56,866)(47,844)Losses and other(16,447)(16,057)240,099249,456Presented as:Deferred tax asset(3,968)(9,215)Deferred tax liability244,067258,671240,099249,456Deferred tax on property, plant and equipment has arisen on differences between the carrying value of the relevant assets and the tax base. Other deferred tax relates to temporary timing differences on non-specific bad debt provisions and expense accruals.Deferred tax assets and liabilities are measured at the tax rates that are expected to apply in the period when the asset is realised or the liability settled, based on tax rates that have been enacted or substantively enacted at the balance sheet date. As at the date of the financial statements, the Finance Bill 2010, which includes a reduction in the UK corporate tax rate to 27% from 1 April 2011, has been substantively enacted and so UK deferred tax assets and liabilities have been calculated at this rate. The UK Government intends to reduce the UK corporate income tax rate further, to 23%, which will be enacted in successive Finance Bills. Consequently, the Group will only recognise the impact of the rate change which is substantively enacted at that time in its financial statements. However, for indicative purposes only, the maximum effect of the proposed reduction in the corporate income tax rate is to reduce the deferred tax balance as at 31 December 2010 to £205,000,000.The movement for the year in the net deferred tax liability is as follows:Property, plant and equipment£000Derivative financial instruments£000Losses and other£000Total£00031 December 2008 and 1 January 2009324,826 (58,847)(2,970)263,009 Recognised in income(11,469) - (13,089)(24,558)Other movements2 2 Recognised in other comprehensive income - 11,003 - 11,003 At 31 December 2009 and 1 January 2010313,357 (47,844)(16,057)249,456 On acquisition of subsidiaries66 - (121)(55)Recognised in income(11) - (269)(280)Recognised in other comprehensive income - (9,022) - (9,022)At 31 December 2010313,412 (56,866)(16,447)240,099