2002 £m		As restated 2001 £m		As restated 2000 £m
United Kingdom:
Corporation tax at 30%		275		690		852
Taxation on the group's share of results of associates		2		6		3
Taxation on the group's share of results of joint ventures		-		42		-
Prior year adjustments		-		(185	)	(12	)
Non-UK taxation:
Current		23		24		5
Taxation on the group's share of results of associates		50		33		25
Taxation on the group's share of results of joint ventures		34		146		11
Prior year adjustments		(7	)	(20	)	-
Total current taxation		377		736		884
Deferred taxation charge (credit) at 30%
Origination and reversal of timing differences		34		87		57
Prior year adjustments		32		(111	)	16
Total deferred taxation		66		(24	)	73
Total tax on profit (loss) on ordinary activities		443		712		957

In accordance with FRS19, deferred taxation has been restated for the years ended 31 March 2001 and 2000 by £60 million in both years, arising on excess capital allowances. The deferred tax charge for the year ended 31 March 2002 would be £60 million lower under the previous accounting policy.

The tax credit relating to exceptional items is £143 million (2001 - £22 million charge, 2000 - £5 million credit) of which £nil charge (2001 - £12 million charge, 2000 - £38 million charge) relates to profit on sale of fixed asset investments and group undertakings, and profit on sale of property fixed assets.

A tax charge on recognised gains and losses not included in the profit and loss account of £11 million (2001 - £29 million charge, 2000 - £3 million credit) related to exchange movements offset in reserves.

In the year ended 31 March 2001, the loss on ordinary activities before taxation was £1,031 million, after charging £3,200 million of goodwill impairment, which is not an allowable expense for taxation. In the following table, the effective corporation tax rate is reconciled to the profit of £2,169 million before this impairment charge.

Current tax and total tax on profit on ordinary activities, differs from the amount computed by applying the corporation tax rate to profit on ordinary activities before taxation. The differences were attributable to the following factors:

		2002 %		As restated 2001 %		As restated 2000 %
UK corporation tax rate		30.0		30.0		30.0
Non-deductible depreciation, amortisation and impairment		92.6		9.0		2.5
Non-deductible non-UK losses		17.8		11.3		2.7
Higher taxes on non-UK profits		0.8		4.0		-
Lower effective tax on net foreign exchange gains		-		-		(1.2	)
Excess capital allowances over depreciation		9.7		0.7		0.7
Pension provisions		(11.5	)	(4.0	)	(3.3	)
Other timing differences		(0.5	)	(0.7	)	0.7
Lower effective tax on gain on disposal of fixed asset investments and group undertakings		(66.3	)	(8.3	)	(1.2	)
Lower effective tax on gain on disposal of non qualifying assets		(44.6	)	-		-
Prior year adjustments		(0.5	)	(9.5	)	(0.4	)
Other		(1.7	)	1.4		(0.5	)
Current tax - effective corporation tax rate		25.8		33.9		30.0
Deferred taxes on excess capital allowances over depreciation		(9.7	)	(0.7	)	(0.7	)
Pension provisions		11.5		4.0		3.3
Other timing differences		0.5		0.7		(0.7	)
Prior year adjustments		2.2		(5.1	)	0.6
Total tax - effective corporation tax rate		30.3		32.8		32.5

Factors that may affect future tax charges
The group operates in countries where the tax rate is different to the UK corporate tax rate, primarily the USA, the Netherlands, the Republic of Ireland, Germany and Spain.

As at 31 March 2002, the group had overseas corporate tax losses estimated to be £850 million which are not recognised as deferred tax assets. In addition, the group has unutilised capital losses estimated to be in excess of £10 billion which were not recognised as deferred tax assets.