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 Four Really Good Reasons to Invest There are four very good reasons to start investing. Do you know what they are? The Most Overlooked Item of Any Home Improvement The item most homeowners forget on their home improvement project checklist is insurance. Pay Yourself First It sounds simple, but paying yourself first can really pay off.