asked the Chancellor of the Exchequer (1) if he will detail the proportions of pre-tax and post-tax increases paid to the top 1 per cent., 2 per cent., 3 per cent., 4 per cent., 5 per cent., 10 per cent., 20 per cent., 30 per cent., 50 per cent. and 75 per cent. of taxpayers in 1978–79 and the latest available year; and what this represents in money terms;(2) if he will detail the proportions of pre-tax and posttax increases, including national insurance contributions, paid to the top I per cent., 2 per cent., 3 per cent., 4 per cent., 5 per cent., 10 per cent., 20 per cent., 30 per cent., 50 per cent. and 75 per cent. of taxpayers in 1978–79 and the latest available year; and what this represents in money terms.
[pursuant to his replies, 20 January 1987 c. 470 and 23 January 1987 c. 781]: Information is
Earnings level | Top 5 per cent. | Top 10 per cent. | Top 25 per cent. | Top 50 per cent. | Top 75 per cent. |
Percentage changes between April 1977 and April 1978 | |||||
Gross earnings | 13·4 | 13 6 | 13·0 | 13·4 | 12·2 |
Earnings afler tax | 15·1 | 15·2 | 14·6 | 15·0 | 14·0 |
Earnings after tax and NIC | 14·1 | 14·2 | 13·6 | 14 0 | 13·1 |
Percentage changes between April 1985 and April 1986 | |||||
Gross earnings | 9·4 | 8·3 | 7·7 | 7·71 | 6·7 |
Earnings after tax | 10·3 | 9·2 | 8·5 | 7·7 | 7·2 |
Earnings after tax and NIC | 10·6 | 9·3 | 8·5 | 7·8 | 7·2 |
Cash changes between April 1977 and April 1978 (£ per week) | |||||
Gross earnings | 17·70 | 15·36 | 11·63 | 9·56 | 7·04 |
Earnings after tax | 14·56 | 12·80 | 10·07 | 8·50 | 6·67 |
Earnings after tax and NIC | 12·80 | 11·04 | 8·64 | 7·34 | 5·79 |
Cash changes between April 1985 and April 1986 (£ per week) | |||||
Gross earnings | 33·50 | 24·50 | 17·40 | 12·30 | 8·90 |
Earnings after tax | 27·81 | 20·81 | 15·07 | 10·91 | 81·0 |
Earnings after tax and NIC | 26·01 | 19·01 | 13·50 | 9·81 | 7·30 |