Annuity Comparison This calculator compares a hypothetical fixed annuity with an account where the interest is taxed each year. 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 What Is My Life Expectancy? Estimate how many years you may need retirement assets or how long to provide income to a surviving spouse or children. Choosing a Business Structure Entrepreneurs all face the same question, “Which business structure should I adopt?” Deciding When to Take Social Security One of the most common questions people ask about Social Security is when they should start taking benefits.