Tax Preparation for U.S. Citizens Living Abroad Welcome to TFX! We offer U.S. Income Tax Preparation and Advisory Services for U.S. citizens and green card holders living all over the world. As a U.S. expat living abroad, you are legally required to file U.S. tax return each year on your worldwide income. At Taxes for Expats we strive to make this process as easy and hassle-free as possible. With over 20 years of expatriate tax experience, you can rely on us to stay on top of the latest changes in U.S. tax law and take advantage of extended filing deadlines, foreign income exclusion, tax credits and tax treaty benefits to meet full U.S. tax compliance.