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 Extended Care: A Patchwork of Possibilities What is your plan for health care during retirement? Contributing to an IRA? Determine if you are eligible to contribute to a traditional or Roth IRA. Test Your Estate Strategy Knowledge Estate management can help ensure that your assets are transferred according to your wishes while managing tax issues.