With NIIT, it's an additional 3.8% on top of that (for the highest income filers). So 23.8%. https://www.irs.gov/newsroom/questions-and-answers-on-the-net-inve

With NIIT, it's an additional 3.8% on top of that (for the highest income filers). So 23.8%. 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...