Yes it is a a small number. Canary in a coal mine, really. The people who leave go everywhere. Including high tax locations. Income tax is not usually the issu

Yes it is a a small number. Canary in a coal mine, really. The people who leave go everywhere. Including high tax locations. Income tax is not usually the issue. Estate tax is a big reason. So are the tax penalties imposed by the US for trivial paperwork problems. Hint. You Aussies in the USA have a big big problem with your superannuations.