If you go overseas and work for a year and are paid there when you return you get the money US tax free. I have a friend who works in Afghanistan and besides the very high rate he get, it is tax free if he stays for a year. He actually is allowed to come back to the US or a territory of the same for a short period (I think less than 2 weeks) without jeopardizing that (as long as he does not bring back money from there. He lives in a compound on a rather large base and it is a hell of a lot of work in the heat but the money for skilled folks is great (especially tax free). He is a Master Electrician He works for KBR.