I have no idea. From the Programme for Government
Commission on Welfare and Taxation
A Commission on Welfare and Taxation is to be established to consider medium and long term ways in which the tax system can support economic activity and increased employment, while ensuring that sufficient resources are available to meet the costs of public services and State supports. Much of the longer term tax policies can be expected to emanate from the deliberations of this Commission. Of interest here in particular is the direction to this Commission to consider policies adopted by similar sized OECD economies.