They've worked out what some tax reliefs cost. Trouble is you can't simply raise taxes by getting rid of them. If we had to pay tax when we sold our homes, we'd simply not move. And the tax incentives for entrepreneurs are supposed to encourage new businesses.
Cost of UK tax breaks rises to £117bn The cost of some UK tax breaks has risen 13 per cent during the past four years to £117bn, a sum larger than the budget of any department, including the health service.