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 Retirement Plan Detectives A couple become Retirement Plan Detectives, searching records from old employers. A Living Trust Primer Living trusts are popular, but their appropriateness will depend upon your individual needs and objectives. Bull & Bear Markets: A Timeline This helpful infographic will define bull and bear markets, as well as give a historical overview.