The Irish Fiscal Advisory Council (Ifac) made headlines on Thursday when it presented research by economist Brian Cronin estimating that corporation tax in Ireland had become even more concentrated, with three multinationals contributing 46 per cent in 2024. While the figures were staggering, with that 46 per cent representing a €13 billion tax bill between three groups in 2024, they are set to be surpassed again in 2025. Cronin’s unique research, which has tracked Ireland’s very largest taxpayers since 2017 (no accounts were available for those companies before that), identified two consistent tech groups on the podium, along with one…