An annuity is defined as?

An annuity is indeed defined as a finite series of equal payments occurring at regular intervals. This definition captures the essence of what an annuity represents in finance: it is a sequence of cash flows that occur at the same amount and on a predictable schedule, such as weekly, monthly, or annually.

The regularity and uniformity of these payments distinguish annuities from other financial instruments. They could be structured as ordinary annuities, where payments are made at the end of each period, or as annuities due, where payments are made at the beginning of each period. This feature of having equal payments allows for easier calculation of present and future values, which is essential in financial planning and investment analysis.

Understanding this concept is crucial for anyone dealing with retirement planning, loan amortization, or investment products that involve regular cash flows. It provides a framework for evaluating how these cash flows will impact overall financial situations over time.