The U.S. requires citizens to pay taxes on money they earned, even if they are living overseas. This simple truth also applies to foreign assets, including foreign bank accounts. Learn when expats are responsible for reporting foreign bank accounts and other assets, foreign bank account reporting (FBAR) filing requirements, and how Expat CPA can help. If you live and work in the U.K., then you should pay only U.K. taxes, right? If you're an American expat, this faulty line of thinking may lead to thousands of dollars in penalties for missed tax obligations. American citizens must file U.S. taxes, even if they live and work in the U.K. E-commerce used to be exempt from the sales tax that would affect brick-and-mortar businesses, but that's no longer the case. Brush up on e-commerce sales tax rules to make sure you're running your business by the books and avoiding a hefty fine or lawsuit from non-compliance. If you are a U.S. citizen living abroad, you must file U.S. taxes. Failure to do so could lead to costly penalties. Brush up on everything you need to know as an expat filing U.S. taxes, including how to avoid a double tax from both countries.