To ask the Secretary of State for Social Services if he will estimate how many people will face marginal tax rates of over (a) 40 per cent., (b) 50 per cent., (c) 60 per cent. and (d) 70 per cent. as a result of the interaction of the tax and social security systems, in 1988–89.
I refer the hon. Member to my reply to my hon. Friend the Member for Kensington (Sir Rhys Williams) on 25 March at columns 243–46. This gives the numbers of working heads with combined marginal tax and benefit withdrawal rates above 50 per cent.We estimate that 45,000 families with children and 25,000 couples and single people without children have combined rates between 40 and 50 per cent.