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 Retirement Questions That Have Nothing to Do With Money Things to consider before retirement. A Taxing Story: Capital Gains and Losses Understanding how capital gains are taxed may help you refine your investment strategies. Should You Invest in Exchange Traded Funds? There are thousands of ETFs available. Should you invest in them?