HC Deb 14 April 1978 vol 947 c579W
Mr. Lawson

asked the Chancellor of the Exchequer what would be the cost of

ESTIMATED INCOME TAX DUE IN 1977–78
£ million
On the allowances and rates of the year (1) If yield had risen in line with prices since 1973–74 (2) If allowances and thresholds had risen in line with prices since 1973–74, with 1973–74 tax rates (3) On the allowances and thresholds of the year but with 1973–74 tax rates (4)
18,000* 15,600 14,400 16,100
* This excludes the estimated £200 million yield from the first stage of the switch from child tax allowances and family allowances to child benefit, the inclusion of which would invalidate comparisons with the other columns and with previous years