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 The Business Cycle Understanding the economy's cycles can help put current business conditions in better perspective. Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates. Do Our Biases Affect Our Financial Choices? Even the most seasoned investors have biases affecting their financial choices.