Re: Thre is a slight problem with this
We're going to have a tougher time dealing with this than Oz anyway. We're in the EU. One of the provisions of the single market is that you only have to set your company up in one jurisdiction, and pay tax there. So setting up in Ireland, operating from Ireland, and paying your corporation tax there is perfectly legal, and we could only stop it if we left the EU.
On the other hand, Ireland allowing transactions not from Ireland to be corp tax free is presumably going to be ruled an illegal subsidy by the ECJ.
Google were also, allegedly, selling advertising in the UK for a while, and then just having the Ireland office sign the contract. Which should surely have been UK money, to pay UK tax. Now the whole sales team is in Ireland, so there can't be an argument.