§ Mr. Frank Fieldasked the Chancellor of the Exchequer if he is yet able to reply to the question tabled by the hon. Member for Birkenhead for answer on 7 March 1986 on the share of tax paid by each decile group.
§ Mr. BrookeI regret the delay in providing a reply to the hon. Member's question. It is being answered today.
§ Mr. Frank Fieldasked the Chancellor of the Exchequer what extra revenue would result from allowing all tax allowances, both personal and non-structural, at the standard rate of tax only.
§ Mr. Frank Fieldasked the Chancellor of the Exchequer if he will express the percentage shares of tax paid for each year since 1977–78 by the following income groups: the top 10 per cent., 10 to 20 per cent., 20 to 30 per cent., 30 to 40 per cent., 40 to 50 per cent., 50 to 60 per cent., 60 to 70 per cent., 70 to 80 per cent., 80 to 90 per cent., and bottom 10 per cent., respectively.
§ Mr. Moore[pursuant to his reply, 7 March 1986, c. 284]: The available information is as follows. The analysis is of single people and married couples paying income tax in each year. The quantiles are determined by reference to tax liability. The figures are based on the surveys of personal incomes for years up to 1983–84. For subsequent years, they are based on projections from the 1983–84 survey and are therefore provisional.
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Quantile shares of income tax Per cent. Quantile group of tax units* Per cent. 1977–78 1978–79 1979–80 1980–81 1981–82 1982–83 1983–84 1984–85 1985–86 Top 10 34.9 34.5 33.8 34.8 35.4 35.9 35.8 36.8 37.2 10–20 15.0 15.7 15.7 16.1 15.6 15.5 16.2 15.7 16.0 20–30 12.0 12.3 12.4 12.3 12.1 12.1 12.5 12.2 11.9 30–40 10.0 9.9 10.4 10.2 9.9 9.9 10.1 9.8 9.5 40–50 8.1 8.8 8.6 8.5 8.1 8.2 8.1 7.7 7.8 50–60 7.2 6.7 6.8 7.1 6.7 6.6 6.4 6.4 6.3 60–70 5.1 5.4 5.6 5.2 5.3 5.2 4.9 5.0 4.9 70–80 4.4 4.0 3.7 3.3 3.8 3.7 3.5 3.6 3.6 80–90 2.5 2.0 2.3 1.8 2.4 2.2 1.9 2.1 2.1 Bottom 10 0.8 0.7 0.7 0.7 0.7 0.7 0.6 0.7 0.7 * i.e. counting married couples as one and combining their incomes.