CAPEX and OPEX – what are they and what do they mean?

In the vast financial and business universe, there are terms and concepts that serve as pillars for strategic decision-making. CAPEX and OPEX are two of these terms, often mentioned when discussing investments, costs, and the financial health of a business.

Although they may seem like technical jargon at first glance, understanding the nature and application of these concepts is essential for any professional or entrepreneur who wants to successfully navigate the world of business.

what is capex and opex

CAPEX, or Capital Expenditure, refers to the significant expenses that a company makes to acquire or improve physical assets, such as equipment or real estate. On the other hand, OPEX, or Operating Expenses, covers the recurring costs associated with a company's daily operations, such as salaries and raw materials.

The distinction between these two types of expenses is not limited to their definition alone. It has profound implications for how a company allocates its resources, plans its growth, and assesses its profitability.

In this article, we will delve deeper into CAPEX and OPEX, unravelling their relevance and impact in the contemporary business landscape. Whether you are a manager, investor, or simply someone curious about finance, this article will offer valuable insights into two of the most crucial concepts in the world of business.

What is CAPEX?

CAPEX, or capital expenditure, represents the funds that a company uses to acquire physical goods that will expand its ability to generate profit. The acquired assets can be new machinery or assets that improve the productivity of some equipment or plant. These acquisitions can include, for example, hardware (such as printers or computers), vehicles for transporting goods, or the construction of a new building.

The type of industry in which a business operates greatly influences the nature of capital expenditures. If the useful life of an asset extends beyond the fiscal year, then the company must use amortisation (in the case of intangible assets, such as patents) or depreciation (in the case of tangible goods, such as equipment), with the aim of distributing the cost of this asset over its useful life.

Practical examples of capital expenditure

  • Acquisition of property or real estate: When a company purchases a new building to expand its operations or open a new branch.
  • Purchase of machinery: The acquisition of new machinery to increase production capacity in a factory.
  • Investment in technology: Implementation of a new IT system or upgrading the existing technological infrastructure.
  • Product development: Research and development to create a new product or improve an existing one.
  • Facility renovation: Modernisation of an office space or a production facility.

How to calculate CAPEX

Before explaining how to calculate CAPEX, it's important to know that there are different types of CapEx. The most important ones are:

  • Maintenance CAPEX: This is the investment required to cover the deterioration and depreciation of fixed assets. Therefore, it could be understood as the investment required by the company to maintain the current level of sales.
  • Expansion CAPEX: This is an investment in fixed assets to increase the current level of sales. In other words, what the company invests to acquire new fixed assets and/or improve the current ones to expand production and increase revenues.

Therefore, the total CAPEX investment of the company will be the sum of the two previous ones. As such, a company will have an expansion strategy when the total level of CapEx is higher than the depreciation expense. This means that it invests not only to replace assets but also to increase or improve them. The formula to calculate CAPEX is as follows:

Capex = Plant, property, and equipment (PP&E) (current year) – Plant, property, and equipment (PP&E) (previous year) + Depreciation (current year).

In other words, you need the following figures:

  • Find out the amount of money the company spent on Property, Plant, and Equipment (PP&E, located in the balance sheet) in the current year and subtract the money spent on PP&E in the previous year
  • Add the current year's depreciation expense from the income statement.

Benefits and challenges associated with CAPEX:


  • Asset appreciation: Investments in CAPEX can increase the value of the company's assets, strengthening its balance sheet.
  • Growth potential: The acquisition or improvement of assets can open new market opportunities and increase productivity.
  • Tax benefits: In many countries, capital expenses can be depreciated over time, offering tax advantages.


  • High capital requirement: Investments in CAPEX generally require a large amount of financial resources.
  • Investment risk: If the investment does not generate the expected returns, it can result in financial losses.
  • Management and maintenance: Acquired or improved assets may require regular maintenance and proper management to ensure their effectiveness.

What is OPEX?

OPEX, or operating expenses, is the sum of the ongoing costs that a company has to cover in the short term to keep running. In contrast to CAPEX, operating expenses are completely tax deductible in the same year they are incurred.

As operating expenses are the “bulk” of a company's usual expenses, management should introduce ways to reduce these expenses without causing drops in the quality of products and services or in the production rate.

Some examples of operating expenses include license fees, advertising, office expenses, insurance, administration and property fees, travel and vehicle expenses, payroll, and raw materials.

How to calculate OPEX

OPEX is calculated by adding all the company's operating costs during a certain period. It is usually used for a period of 1 year. Based on these costs, it is possible to identify the most suitable model for your company.

OPEX is listed on the company's income statement. You can also calculate it by adding all the separate operating expenses of the company, which depend on each business (i.e., not all businesses may have to pay rent).

Practical examples of operating expenses

  • Salaries and benefits: Payments made to employees, including salaries, bonuses, and benefits.
  • Rent and utilities: Costs associated with renting spaces and using services such as water, electricity, and internet.
  • Materials and supplies: Acquisition of necessary materials for production or services.
  • Marketing and advertising: Expenses on advertising campaigns, promotions, and other marketing activities.

Benefits and challenges associated with OPEX


  • Financial flexibility: Operating expenses can be adjusted more easily in response to changes in market conditions or company needs.
  • Tax deductions: In many tax systems, operating expenses are deductible in the year they are incurred, which can reduce the company's tax burden.
  • Continuous operation: OPEX ensures that the company has everything it needs for its daily operations, maintaining business continuity.


  • Cost management: Without proper management, operating costs can escalate quickly and affect profitability.
  • Dependence on cash flow: Since OPEX is recurring, it is essential that the company has a stable cash flow to cover these expenses.
  • Adapting to changes: Companies may face challenges when trying to reduce or modify certain operating expenses in response to changes in the business environment.


In summary, CAPEX and OPEX differ in terms of meaning and scope.

  • Investment time: CAPEX is a long-term investment, and OPEX is a short-term expense.
  • Taxation: CAPEX is deducted for depreciation over the years, and OPEX is deducted in the same period.
  • Payment schedule: CAPEX is paid at the time of purchase, and OPEX refers to the recurring expenses of the company.

To better understand the difference between CAPEX and OPEX, in practice, let's look at an example: If a business plans to produce more due to increased demand, it will have to buy more raw materials. This expense is an OPEX since they are necessary for the increased production.

However, the company's plant does not have the capacity to meet the production demand anymore. Therefore, it will have to expand its production capacity by acquiring new machinery. This initial investment is known as CAPEX (it is paid only when the goods are acquired and can be depreciated over the years of use).

Differences between CAPEX and OPEX

The financial and business world is full of terms and concepts that, although they may seem similar at first glance, have distinct implications in the management and finances of a company. CAPEX and OPEX are two of these terms, and understanding their differences is crucial for any professional or entrepreneur.

Let's explore these differences in detail:

Direct comparison of the two concepts

Nature of Expense

  • CAPEX: Refers to significant expenses made to acquire or improve long-term physical assets. It is an investment made with the expectation of future return.
  • OPEX: Includes recurring expenses necessary for the daily operation of a company. They are expenses in the short term and do not result in increased sales or productivity.


  • CAPEX: Long-term expenses that benefit the company for several years.
  • OPEX: Short-term expenses, usually incurred and paid within a fiscal year.

Impact on cash flow and company accounting

  • CAPEX:
    • Reduces free cash flow when the investment is made.
    • It is recorded as an asset on the balance sheet and depreciated over time.
  • OPEX:
    • Directly impacts cash flow and profitability in the period in which it is incurred.
    • It is directly deducted from revenue in the Income Statement of the period in question.

Tax implications of each type of expense

  • CAPEX:
    • Can be depreciated over several years, which can result in tax deductions over time.
    • In some tax systems, certain capital investments may qualify for tax incentives or credits.
  • OPEX:
    • It is generally deductible in the year it is incurred, reducing the company's taxable profit for that fiscal year.
    • No depreciation.

In summary, while CAPEX and OPEX are both essential for the operation and growth of a company, they have very different implications in terms of financial management, accounting, and taxation.

Understanding these differences is crucial for making informed decisions and both CAPEX and OPEX are often important for the fundamental analysis of a company.

The importance of CAPEX and OPEX in fundamental analysis

When investing in the stock market, it is essential to have a clear understanding of a company's financial fundamentals.

  • Influence on cash flow: A company with high CAPEX may be expanding or renewing its fixed assets. This may indicate growth potential, but it is also vital to check if these investments are generating an adequate return. OPEX, on the other hand, shows the company's regular operating costs. A steady increase in OPEX without a corresponding growth in revenues may be a red flag for investors.
  • Operating margin: By considering both, CAPEX and OPEX, investors can have a clear view of the company's operating margin. A good margin indicates that the company is managing its expenses effectively and has the potential to generate profits

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How do CAPEX and OPEX impact a company's financial performance?

CAPEX impacts a company's long-term growth and productivity by enhancing its asset base. It's an investment in the future and can affect profitability indirectly over time. OPEX directly influences the day-to-day operational efficiency and short-term profitability of the business.

Are there strategies to optimise CAPEX and OPEX spending?

Yes, companies often strategise to optimise their spending. For CAPEX, businesses might conduct thorough cost-benefit analyses before investing in new projects or assets to ensure they align with long-term goals. With OPEX, optimisation strategies might involve negotiating better supplier deals, streamlining operations, or adopting cost-effective technologies.

Are there instances where expenses could be categorised as both CAPEX and OPEX?

Yes, certain expenses might have components of both CAPEX and OPEX. For instance, if an expense involves both maintenance (OPEX) and significant enhancements (CAPEX) to an existing asset, determining the appropriate categorisation might depend on the specific nature and impact of the expense.

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