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 The Sequence of Returns A look at how variable rates of return impact investors over time. Required Reading: The Economic Report of the President The Economic Report of the President can help identify the forces driving — or dragging — the economy. How Interest Rates Affect Everything This is a good infographic to use, and reuse, whenever the benchmark interest rate goes up.