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 Insurance Needs Assessment: When You're Young and Single Even if you’re young and single, you should still consider protecting yourself. A Look at Diversification Diversification is an investment principle designed to manage risk, but it can't prevent against a loss. Data Breach: Your Security To-Do List This article provides a checklist of steps to take if you experience a data breach.