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 How Stocks Work Understanding how a stock works is key to understanding your investments. Best-Performing Asset Classes Bonds may outperform stocks one year only to have stocks rebound the next. Understanding Equity Compensation Net Unrealized Appreciation and how it affects tax responsibilities.