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 How Will Working Affect Social Security Benefits? Knowing the rules may help you decide when to start benefits. Consider Keeping Your Life Insurance When You Retire Reasons to retain your coverage into your retirement years. Financially Savvy at Six Figures Help your clients with these practical steps to make the most of their six-figure income.