Ms Mairéad Dolan:

It is generally in the areas of PAYE types, such as contractors. Revenue may require us to pay PRSI for part-time contractors, and certain flat-rate travel allowances, which have significantly reduced over the past couple of years, and certain areas such as professional services withholding tax, PSWT, and relevant contracts tax, RCT, but they are very significantly mitigated by the tax certificates of the people that we pay.