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 Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one. The Utility of Sector Investing Successful sector investing is dependent upon an accurate analysis about when to rotate in and out. Earnings for All Seasons Earnings season can move markets. What is it and why is it important?