Capital Gains Tax Estimator Use this calculator to estimate your capital gains tax. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content What’s Your Investment IQ? You make decisions for your portfolio, but how much do you really know about the products you buy? Try this quiz Building a Solid Financial Foundation Sustain financial well-being or create wealth through these actions. What's New for Social Security? There have been a number of changes to Social Security that may affect you, especially if you are nearing retirement.