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 Catch-Up Contributions Workers 50+ may make contributions to their qualified retirement plans above the limits imposed on younger workers. Getting a Head Start on College Savings A few strategies that may help you prepare for the cost of higher education. Will Power Preparing for the eventual distribution of your assets may not sound enticing. But a will puts the power in your hands.