An annuity is a contract between you and an insurance company for a financial product that provides a steady income during retirement. The amount and duration of your payments are typically based on your life expectancy.   Types of Annuities The three main types of annuities include: Fixed:  A fixed annuity  provides a guaranteed payout regardless of market conditions. An investor desiring a predictable income during retirement favors this type of annuity. Variable:  A varia