Just before the summer, the key member states linked to the OECD – including Ireland – agreed that a floor rate of 15% should be placed on corporation tax rates to avoid companies playing one country off against another.

Needless to say, this was a major concession from Ireland, where the corporation tax has been solid and steady at 12½% for more than two decades. Now the c, but there are still quite a few hurdles in place and the big companies can still use their size for tax advantages