A point of clarification - according to the FT article, IO loans in fact account for 'only' 40 per cent of the UK's mortgage book, although whether that's by number or value is unclear. However, in 2007, apparently one-third of new mortgages, not 75 per cent, was sold on an IO basis, and of that one third, 75 per cent was sold without a reported payment plan. This implies that roughly 25 per cent of ALL mortgage loans made in 2007 had no repayment vehicle.
There appears something of a disconnect between IO amounting to 40 per cent of the UK's total mortgage book and yet forming 'just' 33 pe