The Mirrlees review, the most comprehensive review of tax policy in 30 years published on Wednesday, argues the tax system has to be seen as just that: a system.
Immediately following the Spending Review of 20th October, the IFS updated its analysis of the distributional impact of tax and benefit reforms to be introduced between 2010-11 and 2014-15, taking into account the effects of the reforms announced in the Spending Review.2 This did not substantially alter the conclusions from previous analysis by IFS researchers that the impact of the tax and benefit reforms to be introduced over this period was decreasing as a proportion of income within the lowest 90% of households in the income distribution, although it is the very richest households that will lose the most overall. If we were instead to rank households by expenditure, which as we have argued previously might better reflect households' lifetime incomes, losses as a proportion of expenditure again fall as we move up the expenditure distribution
We discuss the advantages and disadvantages of moving to a more integrated benefit and tax system, and then discuss issues relating to strengthening work incentives.
The consultation period on the Government's ideas for fundamental reforms to the benefits system ends on 1 October. Integrating all benefits and tax credits should create a system which is simpler for both claimants and government, but the Government will need to explain much more clearly how a Universal Credit would work and how much different groups of recipients will get if we are to have an informed debate on its merits.
