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 Red Flags for Tax Auditors Here are six flags that may make your tax return prime for an IRS audit. Navigating Retirement Pitfalls Why are they made again and again? Making sense of these errors in judgement. The Other Sure Thing Though we don't like to think about it, all of us will make an exit sometime. Are you prepared?