So the US Permanent Subcommittee on Investigations has declared that Ireland is a tax haven and Apple executives giving testimony to the committee have said that the Irish government gave them a special 2% rate. Rate in this context is irrelevant however, as the mechanism ensures that what Apple declares as taxable income is completely up to them. As many reports have suggested, Apple could pay as little as 0.05% on income earned and passed through Ireland, and the revenue appears to be sales tax on Apple products bought in Ireland. In addition they have also said that their Irish companies are not registered for tax anywhere, so that none of the $30 bn global income earned in the last number of years was taxed.The Irish government denies that it has provided special tax treatment to Apple, and that it is not a tax haven. This is the surest sign that it is one, according to Richard Murphy of Tax Research UK.