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 Insuring Your Business With a Buy/Sell Agreement It may help your business be better prepared in the event of the death of a principal or key employee. Choosing a Business Structure Entrepreneurs all face the same question, “Which business structure should I adopt?” Forecast This short video helps explain why markets can be as unpredictable as the weather.