Who Should Buy An Immediate Annuity? 
The purpose of an immediate annuity is to establish an income stream that you ca n't outlive . Most people who buy immediate annuities are retired and concerned that their money may run out . While there are variable immediate annuities , fixed annuities are more often used for this purpose . Since interest rates are currently very low , you may want to consider adding an inflation rider on your annuity . The inflation rider will allow for some increases in your monthly income over time to keep pace with rising inflation . 