6 Income tax expense

  2008 2007
Current tax expense: £m £m
UK corporation tax 18.1 19.7
Adjustment in respect of prior years (1.3) 0.3
  16.8 20.0
Deferred tax expense:    
Current year 0.1 (0.1)
Adjustment in respect of prior years 0.6 (1.7)
  0.7 (1.8)
     
Income tax expense for the year 17.5 18.2

Corporation tax is calculated at 28.5% (2007: 30%) of the estimated assessable profit for the year. The corporation tax rate has changed due to rates reducing from 30% to 28%, effective from 1 April 2008.

The charge for the year can be reconciled to the profit per the income statement as follows:

  2008
£m		 2007
£m
Profit before tax 62.3 57.6
Income tax expense at UK corporation tax rate 17.7 17.3
     
Tax effect of:    
Share of net profit of equity accounted joint ventures (0.7) (1.4)
Expenses that are not deductible in determining taxable profits 1.2 3.7
Movements not reflected in the income statement – (0.3)
Adjustments in respect of prior years (0.7) (1.4)
Effects of rate change – 0.3
Income tax expense for the year 17.5 18.2
Effective tax rate for the year 28.1% 31.6%
Effective tax rate for the year ignoring prior year adjustments 29.2% 34.0%