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. Share | Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Infographic: Playing the Odds With Your Future? Plan for the things you can protect against, like a loss of income due to illness or injury. Retirement Planning With Your Special Needs Child in Mind Having a special needs child adds another layer of complexity to retirement planning. A special needs trust may help. Layers of Protection Take these five steps to protect your financial well-being before making any other changes.