HC Deb 08 May 1991 vol 190 c508W
Mr. Cousins

To ask the Secretary of State for Social Security what is the marginal tax benefit withdrawal rate on additional gross income for a person paying standard rate income tax and national insurance and receiving both a rent rebate and community charge benefit as from April 1991; and what is the tax benefit withdrawal rate for each element.

Mr. Jack

The 1988 social security reforms and subsequent tax and national insurance changes eliminated the highest marginal deduction rates and it is now virtually impossible to find oneself worse off as a result of an increase in gross pay.

Someone in work will normally have standard deduction rates of 25 per cent. for income tax and 9 per cent. for national insurance. The marginal deduction rate for such a person paying standard rate income tax, national insurance and receiving both a rent rebate and community charge benefit as from April 1991 is 87 per cent.

The marginal deduction rate on total gross pay for each element is:

Per cent.
Tax 25
National insurance 9
Housing benefit 43
Community charge benefit 10