HC Deb 24 October 1967 vol 751 c424W
52. Sir J. Rodgers

asked the Chancellor of the Exchequer what he estimates would be the cost to the revenue of Surtax payers being allowed to keep the last five shillings in every pound earned.

Mr. Harold Lever

If in cases of mixed income the earned income was treated as the bottom slice of total income, the answer is about £4 million for a full year.