To ask the Chancellor of the Exchequer what is the estimated value of MIRAS in Scotland in (a) 1990–91 and (b) 1991–92.

Broad estimates based on the regional distribution of mortgage interest relief from an analysis of the family expenditure survey are as follows:

Cost of mortgage interest relief for home owners in Scotland
	£ million
1990–91	530
1991–92	420

The percentages of mortgage interest relief given at source through the MIRAS system are estimated at 87 per cent. for 1990–91 and 94 per cent. for 1991–92.