Quote from TD80:
This is exactly what our non-US-citizen counterparts are doing, because they are not taxed on global income. So they simply move to a friendlier locale and trade from there.
Getting out for those of us with US citizenship is a whole other ball of wax as previously mentioned. You need to go buy your citizenship and likely wait out a residency grace period, and then pay Uncle Sam a 30% exit tax on money you have already been taxed to death on.
My personal number is 7 mil liquid in todays dollars before the numbers start to jive for my family and I to consider all the problems and consequences of exiting . I'm not there yet. Each person is different of course.
You have to take a hard look at the opportunity costs though. When that 35% is costing you 500K a year in tax, that to me is starting to get out of hand. Consider 10 year returns with no tax, and it is a real tear jerker. You almost can't afford not to leave. At a certain point, the numbers don't work to stay here from a economic perspective.
You are only looking at one side of the equation. Those US taxes and citizenship also come with benefits, and foreign citizenship/long-term residence comes with disadvantages. Depending on the individual and their circumstances, these may well outweigh any financial saving.
Personally I find that exiling yourself to another country is, on balance, not worth it for money alone, at least not at current tax differentials. If places like the USA and UK had top rates at 65-70%, like they used to, and closed the many loopholes (such as trading through a corporation, or running an offshore fund, putting cash into pension vehicles) then it would become worthwhile. At the moment, IMO it is not worth it as a long-run option (taking 1-2 years out for a bit of adventure and a bonus of some tax saving is reasonable). You need to have additional reasons, such as a significant preference for the culture and/or people you are going to live amongst, compared to your own country. For example if you are a hard-drinking atheist from Saudi Arabia, acquiring citizenship in a western country is probably a good idea. If you are a citizen of Somalia, it may well be worth getting foreign nationality if you can manage it. But giving up a 1st world citizenship is probably not a good idea. Most true tax havens are boring, limited places. Most interesting places have tax rates similar to, or not massively less than, countries like the USA. You are not comparing 35% with 0%, you are comparing 15-28% (LT capital gains/dividend rate, blended futures rate, taking advantage of various tax planning measures) with 15-20% (typical tax rate in low tax countries with actual civilisation and proper societies). Moving away from everyone you know, learning a new language, being in a foreign culture, is not worthwhile to say 5-10% on your tax. If you are paying 50-75% then yeah, it makes more sense. But the USA is not currently facing a really large tax burden, it's not Denmark.
My advice is count your blessings, stop assuming the grass is greener, and remember that the best way to boost your bottom line is not to change citizenship, but to improve your top line. Becoming a better trader/investor is a far more effective way to make more money than changing where you live.