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. Share | 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. Money Draining Food Myths These food myths will really put a drain on your wallet. The Five Basics of Financial Literacy How literate are you when it comes to your finances? Brush up with these five basics.