An '''annuity''' is a financial contract whereby one party pays another a certain amount up front, in exchange for a series of periodic payments at a later time. The payments either end on a specific date or passage of a specific event. | An '''annuity''' is a financial contract whereby one party pays another a certain amount up front, in exchange for a series of periodic payments at a later time. The payments either end on a specific date or passage of a specific event. |