US citizens abroad often still must file an IRS return, so US Expat Tax Filing needs a clear, compliant process. Start by confirming residency, income sources, and foreign accounts, then choose the right approach for relief like the Foreign Earned Income Exclusion or Foreign Tax Credit. Keep records for housing, payroll, and currency conversion. For peace of mind, work with a credentialed expat tax professional and review FBAR/FATCA reporting. This US Expat Tax Filing guide helps you avoid penalties.