> The top US capital gains tax is 20%. The 3.8% is a separate tax A tax on, among other things, capital gains. See: https://www.irs.gov/newsroom/questions-and

> The top US capital gains tax is 20%. The 3.8% is a separate tax A tax on, among other things, capital gains. See: https://www.irs.gov/newsroom/questions-and-answers-on-the-net-investment-income-tax https://www.irs.gov/newsroom/questions-and-answers-on-the-ne... "8. What is included in Net Investment Income? In general, investment income includes, but is not limited to: interest, dividends, capital gains..."