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 Red Flags for Tax Auditors Here are six flags that may make your tax return prime for an IRS audit. Bull and Bear Go To Market Learn about the difference between bulls and bears—markets, that is! 4 Elements of an Estate Strategy Learn about the importance of having an estate strategy in this helpful and informative video.