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 Tax Deductions You Won't Believe Here are some examples of deductions from the IRS that were permitted and some that were, uh, too creative. Preparing for the Expected You can plan ahead to protect yourself and your family against the financial consequences of deteriorating health. Do Our Biases Affect Our Financial Choices? Even the most seasoned investors have biases affecting their financial choices.