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 Healthcare Costs in Retirement Without a solid approach, healthcare expenses may add up quickly and potentially alter your spending. What's New for Social Security? There have been a number of changes to Social Security that may affect you, especially if you are nearing retirement. Saving for Retirement This calculator can help you estimate how much you may need to save for retirement.