asked the Chancellor of the Exchequer (1) if income tax were abolished, by how much the salary of a man with a wife and two children aged 12 and 16 years, and presently earning a gross salary of £10,000, could be reduced in order to leave him with the same net income;(2) if income tax were abolished, by how much the salary of a man with a wife and two childen aged 12 and 16 years, and presently earning a gross salary of £15,000, could be reduced in order to leave him with the same net income;(3) if income tax were abolished, by how much the salary of a man with a wife and two children aged 12 and 16 years, and presently earning a gross salary of £20,000, could be reduced in order to leave him with the same net income;
(4) if income tax were abolished, by how much the salary of a man with a wife and two children aged 12 and 16 years, and presently earning a gross salary of £30,000, could be reduced in order to leave him with the same net income.
Assuming the allowances and rates of tax proposed for 1975–76, the amount of tax to be paid by a married man with two children aged 12 and 16 years is as follows:
| Gross salary | Income Tax for 1975–76 | |
| £ p.a. | (a) | (b) |
| 10,000 | 3,632 | 3,554 |
| 15,000 | 6,892 | 6,801 |
| 20,000 | 10,571 | 10,474 |
| 30,000 | 18,759 | 18,651 |
| (a) Family allowance included in income. | ||
| (b) Family allowance not included in income. | ||