Tax: Aggressive Tax Avoidance

Lord Mackay of Clashfern Excerpts

Wednesday 9th July 2014 Lords Chamber

[Lord Newby]

My Lords, there is very extensive academic literature about the so-called Laffer curve, and I suspect there are very different views on it in your Lordships’ House. It is undoubtedly the case at the extreme ends of the curve that if you tax very highly the rate falls of because people find ways of avoiding it, and if the tax rate is very low the rate falls off simply because the rate per taxable unit is so much less.

[Lord Mackay of Clashfern (Con)]

My Lords, is it not correct that the principal weapon of aggressive tax avoidance is misuse of allowances that are permitted for various reasons? The complexity of that system is so great that it is extremely difficult to analyse transactions to see whether or not they comply with these particular conditions properly.

[Lord Newby]

The noble and learned Lord points to a very important problem. There are over 1,000 tax allowances, all of which have been introduced individually for very good economic development reasons. The problem is that they are now very complicated. Some tax advisers have been extremely creative at finding ways to use these allowances, which were developed for perfectly good reasons, to enable people to avoid their tax.