Form 8960: U.S. Net Investment Income Tax for Expats Explained
Form 8960 is used to calculate and report the 3.8% Net Investment Income Tax (NIIT), which applies to certain U.S. taxpayers whose investment income exceeds modified adjusted gross income thresholds. The form may be required for U.S. citizens and residents living abroad who have passive income such as dividends, capital gains, or rental income.