It doesn't matter if you live in another country. US citizens are still taxed by the US government regardless of where in the world they live. Moving to another

It doesn't matter if you live in another country. US citizens are still taxed by the US government regardless of where in the world they live. Moving to another country accomplishes nothing. They would have to give up their US citizenship. Financial implications aside, few are willing to go that far. The financial implications are also large. You have to pay an exit tax, which would be substantial. And giving up US citizenship to avoid taxes is illegal, so there's that too...