HC Deb 14 July 1986 vol 101 c436W
Mr. Clay

asked the Chancellor of the Exchequer what would be the cost of each £100 increase in the basic personal allowance if the wife's earned income relief and the married man's allowance were both replaced by a single non-transferable tax allowance.

Mr. Norman Lamont

I shall let the hon. Member have a reply as soon as possible.