In addition to salary, businesses sometimes give their expatriate employees benefits such as relocation assistance and a housing allowance. Living as an expatriate can be exciting and present a great opportunity for career advancement, but it can also be an emotionally difficult transition that involves separation from friends and family, and adjusting to an unfamiliar culture and work environment. For Americans working abroad as expatriates, complying with United States income tax regulations is an added challenge and financial burden because the U.S. taxes its citizens on income earned abroad.
Investment dictionary. Academic. 2012.