U.S. taxpayers, including citizens and resident aliens, must file income tax returns if they meet certain income thresholds, with specific forms due by April 18, 2017, or June 15, 2017. Key topics covered include foreign earned income exclusion, foreign tax credits, and various reporting requirements for foreign financial accounts, including FinCEN Form 114 and FATCA Form 8938. Taxpayers must file accurately to avoid steep penalties, with detailed eligibility and filing requirements outlined for foreign tax credits and the foreign earned income exclusion.