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 Should You Ever Retire? A growing number of Americans are pushing back the age at which they plan to retire. Or deciding not to retire at all. Social Security: Maximizing Benefits There are other ways to maximize Social Security benefits, in addition to waiting to claim them. U.S. Personal Savings Rate What can be learned from the savings rate?