The only way to avoid having to file American taxes as an American is to stop being one, to give up your citizenship. Doing so makes you pay a punitive exit tax

The only way to avoid having to file American taxes as an American is to stop being one, to give up your citizenship. Doing so makes you pay a punitive exit tax on all you assets as if you had sold them. Before going down that route, keep in mind that you are obliged to file taxes on your global earnings, but if your "foreign" earnings are taxed at a higher rate than they would in the US and that country has unilateral reciprocity agreements (most places you would be thinking of going would meet both criteria) and you don't have any US income, then you have to file but don't pay anything. If any of the previous points isn't met then you will have to pay the difference. Basically Americans always pay at least an American tax rate, no matter where they are.