Both of your guys points are valid.... I do think, when people have an option, and all things being equal, they will use legal means to reduce their taxes.... So, high income earners leaving NY or other high tax states is understandable... Leaving the country is a huge difference...I'm not saying you can't find other safe, nice, places to live in the world, but most are not going to flee the country. Even if they did, to MM's point, I really don't think you can tackle this with income tax. In fact, if you look at my previous posts, I've cautioned you that I'm not talking about earners and I rarely bring up income...It's not an income issue to me. Yes, that can fluctuate...What doesn't fluctuate as much are assets... I said wealth, as in assets, not incomes... Look at the balance sheets, not the income statements.... To me, from a discussion standpoint, would be an asset tax....The ultra high wealth doesn't need nor typically have traditional income from working.... It's capital gains and assets.