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 Question Thank you! Oops! Related Content 4 Steps to Protecting a Child with Disabilities Planning for a child with special needs can be complicated, confusing, and even overwhelming. Deciding When to Take Social Security One of the most common questions people ask about Social Security is when they should start taking benefits. My Retirement Savings Estimate how long your retirement savings may last using various monthly cash flow rates.