HC Deb 29 June 1984 vol 62 cc544-7W
Sir Brandon Rhys Williams

asked the Chancellor of the Exchequer if he will publish figures showing for each of a single person a single-wage married couple and single-wage married couple with two children aged (a) under 11 and (b) 17 and 15 years, income tax and national insurance contribution marginal tax rates, separately and together and net of child benefit where appropriate, and average tax rates, at 75 per cent., 100 per cent., 200 per cent., and 500 per cent., of average male manual earnings in 1960, 1970, 1980 and the latest year for which figures are available.

Mr. Moore

The following table shows marginal and average rates of income tax and national insurance contributions, at the not contracted-out rate, for the family types specified. Average rates are calculated as a percentage of gross earnings and, for income tax, are shown net of receipt of family allowance and child benefit. The calculations assume that no reliefs were available

Marginal and average rates of Income Tax and NIC
Per cent.
Marginal Rates Average rates
IT NIC IT+NIC IT-CBIFAM NIC IT+NIC-CB/FAM
At three-quarters average male manual earnings
Single
1960–61 24.3 24.3 11.6 4.6 16.1
1970–71 32.1 3.25 35.4 19.8 6.7 26.5
1980–81 30.0 6.75 36.8 21.0 6.7 27.7
1984–85 30.0 9.0 39.0 20.2 9.0 29.2
Married
1960–61 24.3 24.3 5.8 4.6 10.4
1970–71 32.1 3.25 35.4 14.5 6.7 21.2
1980–81 30.0 6.75 36.75 16.0 6.7 22.7
1984–85 30.0 9.0 39.0 14.6 9.0 23.6
Married+2*
1960–61 6.8 6.8 -3.6 4.6 1.0
1970–71 32.1 3.25 35.4 4.6 6.7 11.3
1980–81 30.0 6.75 36.75 6.3 6.7 13.0
1984–85 30.0 9.0 39.0 3.3 9.0 12.3
Married+2
1960–61 -3.7 4.6 0.9
1970–71 32.1 3.25 35.4 1.7 6.7 8.4
1980–81 30.0 6.75 36.75 6.3 6.7 13.0
1984–85 30.0 9.0 39.0 3.3 9.0 12.3
At average male manual earnings
Single
1960–61 30.1 30.1 15.6 3.4 19.0
1970–71 32.1 3.25 35.4 22.9 5.8 28.7
1980–81 30.0 6.75 36.75 23.3 6.7 30.0
1984–85 30.0 9.0 39.0 22.6 9.0 31.6
Married
1960–61 24.3 24.3 10.2 3.4 13.6
1970–71 32.1 3.25 35.4 18.9 5.8 24.7
1980–81 30.0 6.75 36.75 19.5 6.7 26.2
1984–85 30.0 9.0 39.0 18.4 9.0 27.4
Married+2(a)
1960–61 16.5 16.5 0.6 3.4 4.0
1970–71 32.1 3.25 35.4 11.4 5.8 17.3
1980–81 30.0 6.75 36.75 12.2 6.7 19.0
1984–85 30.0 9.0 39.0 10.0 9.0 19.0
Married+2(b)
1960–61 16.5 16.5 -1.5 3.4 1.9
1970–71 32.1 3.25 35.4 9.3 5.8 15.2
1980–81 30.0 6.75 36.75 12.2 6.7 19.0
1984–85 30.0 9.0 39.0 10.0 9.0 19.0
At twice average male manual earnings
Single
1960–61 30.1 30.1 22.9 1.7 24.6
1970–71 32.1 32.1 27.5 3.0 30.5
1980–81 30.0 30.0 26.6 4.7 31.4
1984–85 30.0 30.0 26.3 7.2 33.5
Married
1960–61 30.1 30.1 20.1 1.7 21.7
1970–71 32.1 32.1 25.5 3.0 28.5

other than personal allowances and (where appropriate) child tax allowances and earned income relief; and that both children in case (b) were receiving full time education.

Estimates of average earnings for full-time adult male manual workers are as follows:

£ per week
1960–61 14.50
1970–71 28.05
1980–81 117.60
1984–85 157.30

Marginal Rates Average rates
IT NIC IT+NIC IT-CB/FAM NIC IT+NIC-CB/FAM
1980–81 30.0 30.0 24.7 4.7 29.5
1984–85 30.0 30.0 24.2 7.2 31.4
Married+2(a)
1960–61 30.1 30.1 14.0 1.7 15.7
1970–71 32.1 32.1 21.8 3.0 24.8
1980–81 30.0 30.0 21.1 4.7 25.8
1984–85 30.0 30.0 20.0 7.2 27.2
Married+2(b)
1960–61 30.1 30.1 12.0 1.7 13.7
1970–71 32.1 32.1 20.7 3.0 23.7
1980–81 30.0 30.0 21.1 4.7 25.8
1984–85 30.0 30.0 20.0 7.2 27.2
At five times average male manual earnings
Single
1960–61 *47.6 *47.6 *33.8 0.7 *34.5
1970–71 *56.7 *56.7 *36.4 1.2 *37.6
1980–81 60.0 60.0 40.5 1.9 42.4
1984–85 60.0 60.0 39.8 2.9 42.7
Married
1960–61 *47.6 *47.6 *32.2 0.7 *32.8
1970–71 *52.2 *52.2 *35.2 1.2 *36.4
1980–81 60.0 60.0 39.0 1.9 40.9
1984–85 55.0 55.0 38.2 2.9 41.1
Married+2*
1960–61 *47.6 *47.6 *28.9 0.7 *29.6
1970–71 *52.2 52.2 *†33.4 1.2 *†34.6
1980–81 60.0 60.0 37.6 1.9 39.5
1984–85 55.0 55.0 36.5 2.9 39.4
Married+2
1960–61 *47.6 *47.6 *27.8 0.7 *28.5
1970–71 52.2 *52.2 *†32.8 1.2 *†134.0
1980–81 60.0 60.0 37.6 1.9 39.5
1984–85 55.0 55.0 36.5 2.9 39.4
* Includes surtax.
Assumes that FAM was relinquished—this would have been beneficial under the clawback arrangements.