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 FIRE Retirement This short, informative article teaches the basics of the FIRE movement. Tax Efficiency in Retirement What role would taxes play in your investment decisions? Taxable vs. Tax-Deferred Savings Use this calculator to compare the future value of investments with different tax consequences.