Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Investopedia / Hilary Allison The present ...

What Is the Present Value Interest Factor of Annuity (PVIFA)? The Present Value Interest Factor of Annuity is a financial formula used to calculate the present value of a series of equal payments or ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Dr. Melody Bell is a personal finance expert, entrepreneur, educator, and researcher. Melody ...

An annuity is an insurance contract you purchase to receive payments for a specific period, such as 30 years, or for the rest of your life. By applying a mathematical formula consisting of variables ...