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 Catch-Up Contributions Workers 50+ may make contributions to their qualified retirement plans above the limits imposed on younger workers. The Fed and How It Got That Way Here is a quick history of the Federal Reserve and an overview of what it does. Saving Early & Letting Time Work For You The earlier you start pursuing financial goals, the better your outcome may be.