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 Question Thank you! Oops! Related Content Three Key Questions to Answer Before Taking Social Security When to start? Should I continue to work? How can I maximize my benefit? Test Your Life Insurance Knowledge How much do you know about one of the most important tools you have to help protect your and your family’s financial future? Counteracting Capital Gains with Tax-Loss Harvesting You may have heard the phrase "tax-loss harvesting." A financial professional may be able to provide some guidance.