§ Mrs. Knightasked the Secretary of State for Social Services what would be the gain to the National Insurance Fund if the ceiling on national insurance contributions were raised to £4,500 per annum in respect of primary class I contributions and secondary class I contributions, respectively.
§ Mr. O'MalleyOn the same earnings and unemployment assumptions as in the Government Actuary's Report on the draft Social Security Benefits Uprating Order 1975 (Cmnd 6083), the gain to the National Insurance Fund if the ceiling in 1975–76 were £4,500 for class I contributions would be £121 million from primary contributions, £181 million from secondary contributions and £54 million from Treasury Supplement.