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 Message Thank you! Oops! Related Content Tax Efficiency in Retirement What role would taxes play in your investment decisions? A Taxing Story: Capital Gains and Losses Understanding how capital gains are taxed may help you refine your investment strategies. Stop Wasting Money One way to find money is to examine your current spending habits and eliminate money wasters.