Ireland became famous for its low corporate rate designed specifically to attract big names to their place to open shop, employ locals and pump money into the economy. That's before we get to the so-called tax havens: also perfectly legal, but increasingly judged with opprobrium.
In fact, the EU issued a list last week in an attempt into some sort of crackdown. But back to us. So if head office is in a low tax jurisdiction, and NZ is merely an outpost, then you can easily see that the tax doesn't get paid here.
Australia has passed law looking to do the same thing we are but just on Friday, we had the news that Exxon Mobil reported $6.7 billion in income, but also loss of taxable income so paid no tax. Chevron reported $2.1 billion in income, paid no tax. Shell reported $4.2 billion in income, paid no tax.
So we might like to look at whether a law is, in fact, any sort of answer at all.
Of course the real answer is global agreement on taxation, which is never going to happen. As a result, the individual countries are left to try and recoup what they can - and that's our next problem: we don't count.
Four and a half million people at the bottom of the world is worth doing business in - if it's easy. If it's not easy, the red flags start flying, and companies that deal in billions, if not hundreds of billions, have better things to do with their time.
That's not to say we shouldn't give this a crack: business of all sorts has a moral obligation to be good corporate citizens. Part of the hope is this law will send that message and therefore it might get some traction. Fingers crossed.