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 Inflation and the Real Rate of Return Learn about the role of inflation when considering your portfolio’s rate of return with this helpful article. Social Security: Five Facts You Need to Know Here are five facts about Social Security that are important to keep in mind. Retirement Plan Choices for Small Businesses Retirement choices can be intimidating. Picking the right strategy.