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 The History of Currency Currency has been around for a long time. Here’s a quick history lesson. Stop Wasting Money One way to find money is to examine your current spending habits and eliminate money wasters. 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.