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 What Smart Investors Know Savvy investors take the time to separate emotion from fact. Five Most Overlooked Tax Deductions Five overlooked tax deductions to help manage your tax bill. Working With A Financial Professional A financial professional is an invaluable resource to help you untangle the complexities of whatever life throws at you.