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 A Living Trust Primer Living trusts are popular, but their appropriateness will depend upon your individual needs and objectives. How Income Taxes Work A quick look at how federal income taxes work. A Decision Not Made Is Still a Decision Investors who put off important investment decisions may face potential consequence to their future financial security.