I think every major economy has an income tax. There's quite a bit of syncronization between political systems, because political and cultural trends tend to tr

I think every major economy has an income tax. There's quite a bit of syncronization between political systems, because political and cultural trends tend to transcend borders. There are quite a few countries which do not have global income reporting requirements. Singapore is probably the most notable example. Some European countries absolve non-domicile residents of the requirement to report global income in exchange for a flat annual fee, like 100,000 EUR. So it is possible to live a life without being forced to surrender your natural rights like your wealth and your privacy, but it's expensive.