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. Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content What Is the Dividend Yield? This calculator helps determine your pre-tax and after-tax dividend yield on a particular stock. Making a Charitable Gift Did you know that there are benefits and limitations when you decide to donate stock? Learn more about your options. What Do Your Taxes Pay For? Here's a breakdown of how the federal government spends your tax money.