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 16 Wall Street Cliches in 60 Seconds Pundits say a lot of things about the markets. Let's see if you can keep up. What If You Get Audited? The chances of an IRS audit aren't that high. And being audited does not necessarily imply that the IRS suspects wrongdoing. The Financial Literacy Crisis Many Americans are operating their personal finances with only the barest minimum of knowledge.