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Article
# 5 Methods for Capital Budgeting

August 1st, 2017

Capital budgeting is defined as the process used to determine whether capital assets are worth investing in. Capital assets are generally only a small portion of a company’s total assets, but they are usually long-term investments like new equipment, facilities and software upgrades. By incorporating strategically planned capital budgeting into their financial processes, companies can more effectively determine and prioritize which projects, programs and other investment assets could be most financially beneficial in the long-term. As these assets often only generate tangible returns in the long-term, it is important that practicing finance professionals develop an understanding of the five primary methods of capital budgeting, and how they can be utilized to decide the best course of action when firms are planning their next significant capital investment.

The internal rate of return calculation is used to determine whether a particular investment is worthwhile by assessing the interest that should be yielded over the course of a capital investment. It is determined by using a particular formula that must be calculated through trial-and-error or by using specific software. As the internal rate of return helps aid investors in measuring the profitability of their potential investments, the ideal internal rate of return for a project should be greater than the cost of capital required for the project, as it can be assumed that the project will be a profitable one.

Professionals who hope to maximize the potential of their capital investments need to leverage the internal rate of return when necessary, especially in instances where they are planning on analyzing an investment in venture capital, private equity or other operations that require a consistent cash investment that ends with a large payout, like a sale. When using this calculation, finance professionals should recognize that the measurement for the internal rate of return is similar to the net present value metric (another capital budgeting method); however, the internal rate of return is formulated to make the net present value of all cash flows in a project equal to zero. It is for this reason that companies shouldn’t rely solely on the internal rate of return calculation to project profitability of a project and should use it in conjunction with at least one other budgeting metric, like net present value.

Net present value (NPV) is used for the same purpose as the internal rate of return, analyzing the projected returns for a potential investment or project. The net present value represents the difference between the current value of money flowing into the project and the current value of money being spent. The value can be calculated as positive or negative, with a positive net present value implying that the earnings generated by a project or investment will exceed the expected costs of the venture and should be pursued. Also, unlike other capital budgeting methods, like the profitability index and payback period metrics, NPV accounts for the time value of money, so opportunity costs and inflation are not ignored in the calculation. To achieve this, the net present value formula identifies a discount rate based on the costs of financing an investment or calculates the rates of return expected for similar investment options.

Unlike some capital budgeting methods, NPV also factors in the risk of making long-term investments. Therefore, the formula for net present value is longstanding and effective, but professionals in the industry must still recognize the potential room for error that arises when relying on calculations like investment costs, rates of discount, and projected returns, all of which rely heavily on assumptions and estimates. As accounting for unexpected expenses can be difficult when budgeting for capital investments, it is important to consider using payback period metrics and the internal rate of return as possible alternatives to net present value calculations when evaluating a project or investment.

The profitability index is a capital budgeting tool designed to identify the relationship between the cost of a proposed investment and the benefits that could be produced if the venture was successful. The profitability index employs a ratio that consists of the present value of future cash flows over the initial investment. As this ratio increases beyond 1.0, the proposed investment becomes more desirable to companies. When this ratio does not exceed 1.0, the investment should be deferred, as the project’s present value is less than the initial investment.

The caveat to using the profitability index for capital budgeting is that the technique does not account for the size of a project; therefore, sizable projects with significantly large cash flow figures often claim lower profitability indexes because of their slimmer profit margins. The upside of using the profitability index is that the index does account for the time value of investments in the calculation. It also identifies the exact rate of return for a project or investment, which makes understanding the cost-benefit ratio of projects easier.

The accounting rate of return is the projected return that an organization can expect from a proposed capital investment. To discover the accounting rate of return, finance professionals must divide the average profit by the initial investment. The accounting rate of return is a useful metric for quickly calculating the profitability of a company, and it is widely used for analyzing the success rates of investments that feature multiple projects.

However, the accounting rate of return metric also has some minor drawbacks when used as the sole method for capital budgeting. The first drawback is that it does not account for the time value of the money involved—meaning that future returns may be worth significantly less than the returns currently being taken in. A second issue with relying solely on the accounting rate of return in capital budgeting is the lack of acknowledgement of cash flows. In contrast to these drawbacks, the accounting rate of return is quite useful for providing a clear picture of a project’s potential profitability, satisfying a firm’s desire to have a clear idea of the expected return on investment. This method also acknowledges earnings after tax and depreciation, making it effective for benchmarking a firm’s current level of performance.

The payback period is a unique capital budgeting method. Specifically, the payback period is a financial analytical tool that defines the length of time necessary to earn back money that has been invested. A subcategory, price-to-earnings growth payback period, is used to define the time required for a company’s earnings to find equivalence with the stock price paid by investors. The price-to-earnings growth payback period is also widely used to get a basic understanding of how risky an investment opportunity may be. Understanding the payback period of an investment limits the risks associated with taking on costly projects.

Payback periods are an integral component of capital budgeting and should always be incorporated when analyzing the value of projected investments and projects. The payback period can prove especially useful for companies that focus on smaller investments, mainly because smaller investments usually don’t involve overly complex calculations. Payments made at a later date still have an opportunity cost attached to the time that is spent, but the payback period disregards this in favor of simplicity. As with each method mentioned so far, the payback period does have its limitations, such as not accounting for the time value of money, risk factors, financing concerns or the opportunity cost of an investment. Therefore, using the payback period in combination with other capital budgeting methods is far more reliable.

When employing capital budgeting strategies at their respective businesses, finance professionals have a wide array of tools, formulas, and methods available to them. Yet, even with so many tools and options at hand, it’s important that firms remain mindful of their cash flows and capital assets to ensure that their investments prove profitable in the long-term. This way, companies can reap full benefits of capital budgeting by identifying and prioritizing the large investments, which are most likely to have a long-term impact on the company or organization.

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**Sources**

Three Primary Methods Used to Make Capital Budgeting Decisions, Houston Chronicle

Various Capital Budgeting Methods, Houston Chronicle

Capital Budgeting, Investopedia

Capital Budgeting, InvestingAnswers