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 Money that Buys Good Health is Never Ill Spent It's important to make sure your retirement strategy anticipates health-care expenses. Raising Healthy Children Healthy habits are one of the greatest gifts to give your child. Annuity Comparison This calculator compares a hypothetical fixed annuity with an account where the interest is taxed each year.