§ Lord Williams of Elvelasked her Majesty's Government:
Whether they will publish in the Official Report a distributional analysis of all income tax reductions since 1980 taking the gains to the top 1 per cent., top 2 to 5 per cent., top 6 to 10 per cent., top 11 to 20 per cent., top 21 to 30 per cent., top 31 to 50 per cent., and bottom 50 per cent. giving the number of tax units for each group, the reduction in income tax for each group compared with 1980–81 and the average per tax limit, in the manner of the Financial Secretary's reply of 23rd May 1988 (HC Deb. col. 53–54).
§ Lord Young of GraffhamThe tables show the latest estimates of reductions in income tax liabilities at 1988–89 income levels of the 1988–89 income tax regime compared with an indexed 1980–81 regime. The comparison thus allows for budgetary changes in tax rates, thresholds and allowances but not for any change in the definition of the tax base. The 1980–81 allowances and thresholds have been indexed in line with the increase in the retail prices index between December 1979 and December 1987.
Reductions in Income Tax liabilities in 1988–89 compared with 1980–81 Indexed Tax Regime Point of income distribution in 1988–89(1) Number of units paying tax in 1988–89(2) Reduction in tax Average reduction in income tax compared with the 1980–81 indexed regime(3) millions £billion £per year Top 1 per cent. .21 2.4 11,470 Top 2 to 5 per cent. .84 1.5 1,830 Top 6 to 10 per cent. 1.0 1.2 1,120 Top 11 to 20 per cent. 2.1 1.8 830 Top 21 to 30 per cent. 2.1 1.3 640 Top 31 to 50 per cent. 4.2 2.0 480 Bottom 50 per cent. 10.5 2.6 230 All 20.9 12.8 600 (1) Based on 20,900,000 single people and married couples expected to pay tax in 1988–89 and excluding 510,000 who would pay tax under the revalorised 1980–81 regime. (2) All information is in terms of tax units, i.e. married couples are counted as one and their incomes combined. (3) Based on taxpayers expected to pay tax under a revalorised 1980ߝ81 regime.