§ Mr. Lawson
As far as the Treasury and Customs and Excise are concerned, there have been no additions.
The small quarterly sample inquiry undertaken by the Inland Revenue into company profits is being updated by in- 534W viting some more large companies to become voluntary contributors.
In addition, the Inland Revenue now publishes an official estimate of the distribution of personal wealth including pension rights (series D and E), replacing estimates previously published in the reports of the Royal Commission on distribution of income and wealth. The Inland Revenue statistical publications also include new analyses of the following:
- 1. The structure of the income tax system. (One page of text and four charts, appearing in Inland Revenue Statistics 1980.)
- 2. Tax thresholds. (One page of text and three tables, appearing in Inland Revenue Statistics 1980.)
- 3. Additional analyses of the annual survey of personal incomes, appearing in "The survey of personal incomes 1977–78" namely:
- (i) numbers of income taxpayers in the United Kingdom by marginal rate of tax divided into those not liable to IIS and those liable to IIS at 10 per cent. and 15 per cent. respectively;
- (ii) incomes and deductions by range of total income for all married couples and all single persons aged 65 and over in the United Kingdom;
- (iii) distribution of main source employment income by region and sex;
- (iv) numbers of cases with self-employment income by sex for the constituent countries of the United Kingdom.
- (v) Quantile shares of self-employment income by sex for the United Kingdom.
- (vi) Cross-classification of employment income of husbands and wives in the United Kingdom.
These analyses are based on existing information, as are the ad hoc statistical exercises which the Department carries out from time to time.