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Perpetuity, in finance, refers to an infinite amount of time. Specifically, it’s a type of annuity that makes payments indefinitely or forever. The present value of a perpetuity calculates by dividing the periodic cash flow by the interest rate.


The phonetic pronunciation of “Perpetuity” is /pɜːrpɪˈtjuːɪti/.

Key Takeaways

  1. Steady Stream of Cash Flows: Perpetuity refers to an infinite series of regular, consistent payments or cash flows. It’s a concept used in finance to portray a scenario where payments or dividends, for example, continue indefinitely.
  2. Present Value Calculation: A key aspect of understanding perpetuities is their present value calculation. This can be calculated by dividing the constant annual payment by the interest rate, which demonstrates how much you’d need to invest in perpetuity to generate a specific payment every year, indefinitely.
  3. Categorising Annuities: Perpetuities are a type of annuity – specifically, they are a specific type known as a perpetual annuity. Other types of annuities may have definite end-points or fluctuating payment amounts, but perpetual annuities (or perpetuities) have steady, never-ending payments.


Perpetuity is an important term in business and finance because it refers to an infinite series of cash flows occurring at regular intervals, which offers a practical way to assess and value businesses, stocks, bonds, and other financial instruments. It plays a critical role in determining the present and future value of these assets. An understanding of perpetuity helps investors, financial analysts, and business people determine the intrinsic value of a financial entity, and hence make informed decisions. For example, in business valuation, a company’s future cash flows are often assumed to grow at a constant rate into perpetuity, providing the basis for methodologies such as the Gordon Growth Model. Thus, the concept of perpetuity is fundamental to many areas of corporate finance, investment analysis, and financial planning.


Perpetuity, in the realm of finance and business, is primarily used as a tool for calculating the present value of an infinite series of future cash flows. It serves a significant role when it comes to the valuation of stocks, bonds, and various other financial instruments that offer regular payouts over an indefinite period. For instance, bonds that do not have a maturity date or preferred stocks that provide dividends indefinitely are viewed as perpetuities. Financial analysts and investors often utilize perpetuity when they need to derive the intrinsic value of such long-term investments, thereby assisting them in their decision-making process. Moreover, perpetuity aids in formulating the cost of capital or discount rates in economic analysis and financial modeling. For firms, the concept of perpetuity is useful in evaluating the value of a business or a project that is expected to generate consistent cash flows indefinitely. Businesses often apply the perpetuity formula to estimate the present value of their projected cash flows, which, in turn, helps them make prudent decisions concerning long-term investments and financial planning strategies. Hence, the concept of perpetuity offers valuable insight into the worth of financial securities that provide infinite periodic payments.


1. Government Bonds: Some government bonds, like the UK’s Consols, are examples of perpetuities. The British government still pays interest on these bonds issued back in the 18th and 19th centuries as they have no maturity date. The principal will never be returned, but the interest is paid forever. 2. Certain Types of Trust Funds: Some trust funds are set up as perpetuities where the principal amount is invested and the interest or dividends are used to provide an ongoing payment to the beneficiary. The trust fund never ends because only the interest earned on the investment is used, never the principal. 3. Real Estate Leases: Some long-term leases on real estate can effectively act as perpetuities. For example, a lease for 99 years could be considered as perpetuity for valuation purposes because it generates a steady stream of lease payments indefinitely for as long as the leaseholder lives or the company exists.

Frequently Asked Questions(FAQ)

What is perpetuity in finance?
Perpetuity refers to an infinite annuity, it’s a flow of payments that continues indefinitely. Some bonds and stocks are considered perpetuities.
How is the value of a perpetuity calculated?
The value of a perpetuity is calculated by dividing the annual payment by the interest rate. Simply, it follows the formula P = C / r where P is the value of the perpetuity, C is the payment, and r is the interest rate.
Is perpetuity the same as annuity?
While both are types of payments, they differ in terms of their duration. Annuities are a series of regular payments for a finite period of time. Perpetuities, however, keep generating income indefinitely.
Can perpetuity be sold or transferred?
Yes, perpetuity can be sold or transferred. The new owner will receive the payment for an infinite period of time, unless stated otherwise in the contract’s terms.
What are some examples of perpetuity?
One common example of perpetuity is the UK Government bonds known as ‘consols’. Also, some types of preferred stocks can be considered perpetuities as they pay a fixed dividend forever.
Can the payment amount change in perpetuity?
Usually, the payment amount of a perpetuity is fixed and does not change. However, growing perpetuity includes increasing payments at a constant growth rate.
Does the value of perpetuity change over time?
The present value of a perpetuity does not change over time because it’s an infinite series of payments. However, the future value cannot be computed since it’s theoretically infinite.
Why is understanding perpetuity important in finance?
Perpetuity is a fundamental concept in finance because it illustrates how the value of money depreciates over time. It helps professionals determine the present value of cash flows or revenues that continue indefinitely.

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