Kind of. I've heard he's pretty good at hiding his income from the tax man. But he was definitely more open-minded about Dubya than most of them.
I can't claim to be an expert on the subject but I've read that Ireland is unique among Western and Central European countries when it comes to tax policy...more lenient,less punitive,lower tax rates,than most.And he *is* an Irish citizen.So his "tax avoidance" (I know that's not exactly what you claimed) might not be any more repugnant than is my driving up the road to New Hampshire (which has no sales tax) to buy a laptop rather than pay a confiscatory sales tax here in Massachusetts.