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 When Do You Need a Will? When do you need a will? The answer is easy: Right Now. Women and Financial Strategies Most women don’t shy away from the day-to-day financial decisions, but some may be leaving their future to chance. Retirement Plan Detectives A couple become Retirement Plan Detectives, searching records from old employers.