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. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content Redirect Your Spending Fast A spending fast can redirect your financial life. Social Security Benefits: How Much Will I Receive Calculating your potential Social Security benefit is a three-step process. The Pre-Retirement Checklist This checklist can give you a quick snapshot of how prepared you are.