HC Deb 26 January 1978 vol 942 c764W
23. Mr. Corbett

asked the Chancellor of the Exchequer what has been the change in real terms and in percentage terms of personal tax allowances between the tax years 1973–74 and 1977–78.

Mr. Joel Barnett

The increase in the allowances has been 59 per cent. for the single allowance and 88 per cent. for the married allowance. In real terms this represents a fall of about 17 per cent for the single allowance and about 2 per cent. for the married allowance.