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Introduction
An annuity is a contract that provides a predetermined series of income payments in return for an initial investment. The purchaser (annuitant) can make an initial investment in the form of a lump sum or a series of payments. The income payments (distributions) can be a guaranteed, fixed amount or an undetermined amount based on market returns on the initial investment. The duration of the income payments can be a set number of years or last the life time(s) of one or two people. Annuities are the only investment type that provides a lifetime income guarantee.

Annuities are sold as stand alone investments, usually by insurance companies. The foundation for the annuity is a concept called the Time Value of Money (TVM), which is a fancy term for the many nuances of compound interest. The basic concept of TVM is that any series of future cash flows is equal to a current lump sum amount of cash. These future cash flows are said to be discounted to the present. The discount rate is the assumed interest rate. The higher the interest rate is, the lower the current value of future cash flows. Insurance companies make assumptions about interest rates and use actuarial tables as inputs to TVM calculations to determine what price must be charged for an annuity in order to cover future income payments, provide commissions to brokers, and allow for profits to the insurance company.

 

 

 

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