Social Security Taxes Estimate how much of your Social Security benefit may be considered taxable. 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 Annuity Comparison This calculator compares a hypothetical fixed annuity with an account where the interest is taxed each year. Choosing a Business Structure Entrepreneurs all face the same question, “Which business structure should I adopt?” Required Reading: The Economic Report of the President The Economic Report of the President can help identify the forces driving — or dragging — the economy.