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 Your Shifting Risk Tolerance Time and market performance may subtly and slowly imbalance your portfolio. Preparing for the Expected You can plan ahead to protect yourself and your family against the financial consequences of deteriorating health. Self-Employed Retirement Plans Estimate the maximum contribution amount for a Self-Employed 401(k), SIMPLE IRA, or SEP.