§ Mr. William PowellTo ask the Chancellor of the Exchequer what is his estimate of the amount of income tax the Exchequer would forgo in 1990–91 if the threshold 737W for the starting point for the higher rate of income tax were raised to (a) £30,000, (b) £40,000, (c) £50,000, (d) £60,000, (e) £70,000, (f) £80,000, (g) £90,000 and (h) £100,000.
§ Mr. RyderEstimates are as follows:
Increases to the basic rate limit from £20,700 New basic rate limit £ Direct revenue cost1 £ billion 30,000 1.6 40,000 2.5 50,000 3.0 60,000 3.3 70,000 3.5 80,000 3.7 90,000 3.8 100,000 3.9 1 for a full year at 1990–91 projected levels of income The estimates are based on a projection of the 1987–88 survey of personal incomes and are therefore provisional, the estimates for basic rate limits above £70,000 being particularly tentative.