Audit Risk Model

A strategic framework auditors use to assess and manage any risks or material misstatements in a company's financial statements.

Author: Omkar Iyer
Omkar Iyer
Omkar Iyer
Hi, I'm Omkar! I am an undergraduate student pursuing my BS degree at Rutgers University, New Brunswick. I was a Financial Analyst Intern at WSO during Summer 2023. My time there greatly benefitted me and allowed me to immerse myself in the finance world. Some of my notable skills are my ability to handle multiple responsibilities and work effectively independently and in group settings. Before my time at WSO, I worked two part-time lifeguarding jobs. I am actively looking for internships.
Reviewed By: Alexander Bellucci
Alexander  Bellucci
Alexander Bellucci
Hello! My name is Alex Bellucci, and I am a finance major at SMU in Dallas, TX, looking to pursue a career in investment banking. In college, I have shown my passions for servant leadership early on, by working 2 jobs in addition to my internship with Wall Street Oasis. When I began exploring finance at SMU and took the opportunity to work at Wall Street Oasis, I realized that I was interested in the corporate transactions that investment bankers work on. Because of this, I am studying finance with an emphasis on the energy sector. I plan on using my education at a top Texas business school to become an energy investment banker in Houston, Texas.
Last Updated:May 24, 2024

What is an Audit Risk Model?

The Audit Risk Model is a strategic framework auditors use to assess and manage any risks or material misstatements in a company's financial statements.

An audit is an inspection of an entity’s accounts. It ensures statements are accurate. Audits are not easy. Independent auditors and audit firms need to weigh several factors when performing them. This model spelled out these different risks.

This model is built on the fact that all audits involve some risk. Auditors must use this model to understand that risk. In short, the model proposes that audit risk is equivalent to the product of inherent risk, control risk, and detection risk.

Audit risk model:

Audit Risk Model = Inherent Risk * Detection Risk * Control Risk

Read about the equation here.

The three risks are ordered in a multiplicative way. A multiplicative equation means two or more variables are multiplied to obtain a result. Make sure you convert the percentages to decimals to use in the equation.

Multiplicative equation form:

y = x * x * ....

If one of the “x” variables increases, the resulting “y” variable will increase too. Likewise, if an “x” variable decreases, the resulting “y” variable decreases. When combined multiplicatively, auditors gain a more accurate representation of the audit risk.

The model determines the appropriate auditing procedures for the financial information presented in the company’s financial statements.

It is important to note that no matter how much testing is done, there is always some risk involved in an audit. The audit risk model is built on concepts, not numbers. It is difficult to quantify risks.

One thing to be aware of is that the model is not a one-time operation. It is continuously updated throughout the audit process. and becomesmore specific as the auditor or audit firm learns about the audited entity.

Let’s dive deeper into the model.

Key Takeaways

  • The Audit Risk Model (ARM) is a tool used by auditors to evaluate and manage the risks associated with auditing a company's financial statements.
  • This model helps auditors identify potential areas of concern and design their audit procedures accordingly to ensure the accuracy and reliability of their audit report.
  • Audit Risk is the general risk that the auditor may issue an inappropriate opinion on the financial statements. It is the risk that the financial statements are materially misstated and the auditor does not detect it.
  • The auditor combines inherent risk, control risk, and detection risk to estimate overall audit risk for accurate financial statement opinions.

Financial Statements of Audit Risk Model

There are three main statements analyzed during an audit. These are as follows.

Income Statement

An income statement lists the company’s income and expenses. The auditor can see if the firm profited for the fiscal period. Auditors can also provide their opinions to business owners about the information listed on the income statement.

For instance, if the income statement shows a loss for the fiscal period. The auditor may offer their professional opinion to decrease costs.

One benefit of the income statement is its frequency of publication. While other financial documents are generated yearly, the income statement is either published monthly or quarterly.

This document is unique and important because it provides up-to-date information to stakeholders. Similarly, business owners can address areas for improvement since the income statement highlights them.

The income statement highlights which areas the company spends too much for.

Balance Sheet

A balance sheet reports a company's assets, liabilities, and shareholder equity at a single point in time.

The general accounting equation is:

Assets = Liabilities + Shareholders’ Equity

Balance sheets follow this equation. It is clear to see if the assets truly equal liabilities plus equity. If they do not, then there is a problem.

Assets can include cash, property, and inventory. Liabilities are rent, utilities, taxes, and wages. Shareholders’ equity includes retained earnings.

Balance sheets can help determine risk. Since a company’s assets and liabilities are listed, it is easy to see what it owes. Balance sheets answer whether the company has enough cash to meet its demands, whether its assets are liquid enough, and whether it has taken on too many liabilities.

Statement of Cash Flows

The cash flow statement is the last financial statement analyzed for an audit. This document explains how money flows in and out of the firm. The statement can be generated monthly, quarterly, or yearly.

There are three cash flow statements: operating, investing, and financing. Each statement is related but unique.

Below are the types of cash flow statements and their exact purpose.

Types of Cash Flow Statement and Purpose
Type of Cash Flow Statement Purpose
Operating Shows the cash influx from ongoing, regular business activities; examples of such activities include selling goods and providing services
Investing Shows the cash flux for investing activities; examples of such activities include purchasing assets and making loans
Financing Shows the cash flux for funding the company. Examples of such activities include issuing bonds and repayment of loans

The statement of cash flows is a great indicator of a company’s financial state.

What Risks Are Considered in Each Cycle?

Before continuing, we need to understand the various risks included in the model. Terminology can help clear up the purpose of the model.

  1. Inherent Risk: Inherent risk is one factor in the model. Other factors include the types of transactions made, the company’s financial practices, and its history.
    This is the company's susceptibility to misstatement without internal controls. In other words, this is before considering the internal controls.
  2. Detection Risk: There is a chance that the auditor will not find a risk. This is on the auditor’s side.
  3. Control Risk: There is a chance that the company’s internal controls will not detect or prevent a misstatement. Regardless of the company’s internal controls, this risk is still present. The company’s internal control environment influences this risk.

Relationship Between Acceptable Audit Risk and Audit Assurance

Acceptable audit risk is the confidence an auditor has that their auditor’s opinion may bring on a misstatement. This is a complement to audit assurance.

If the acceptable audit risk is 10%, then the audit assurance is (100 - 10)% = 90%. The auditor gains 90% audit assurance that the company’s financial statements are free of misstatements.

Let us take a look at the examples of the Audit Risk Model.

1. A firm’s acceptable audit risk is 20%. Their inherent risk is 10%, and their detection risk is 80%. What is the level of their control risk?

Audit risk = Inherent risk * Detection risk * Control risk

0.20 = 0.10 * 0.80 * Control risk

0.20 = 0.08 * Control risk

0.20 / 0.08 = Control risk

Control risk = 2.5 = 250%

2. What is the level of audit risk for a small company that has the following levels of risk: inherent: 50%, control: 3%, detection: 12%?

Audit risk = Inherent risk * Detection risk * Control risk

Audit risk = 0.50 * 0.12 * 0.03

Audit risk = 0.0018 = 0.18%

3. What is the level of audit risk for a small company that has the following levels of risk: inherent: 0.5%, control: 18%, detection: 80%?

Audit risk = Inherent risk * Detection risk * Control risk

Audit risk = 0.005 * 0.80 * 0.18

Audit risk = 0.00072 = 0.072%

Limitations of the Audit Risk Model

Although the audit risk model allows auditors to map out the logistics of an audit, it also has a few limitations. Here are some limitations of this model:

  1. Being Subjective: This model maps out risk. One of the main drawbacks of this model is that it heavily depends on the auditor’s reasoning. If the auditor cannot judge well, the risk assessment can vary. This makes the audit itself subpar.
  2. Lack of Scope: This model addresses inherent, control, and detection risks, providing limited insight. It fails to consider other risks for a business, such as operational and reputational risks.
  3. Risk of Fraud: The fraud estimates reported by the audit risk model are inaccurate. As fraud increases in the economy, this model must also be updated. A risk of fraud should be included.
  4. Resource Constraints: Audits require a lot of time and resources. Small companies have a tough time obtaining an auditor for a reasonable price. The audit risk model is an extra charge, so these smaller firms cannot afford to have it performed.
  5. Information Not Complete or Up-To-Date: As with all other audits, information must be provided to the auditor. If a company fails to comply or withholds information, there are legal actions, and the audit risk model will not run as it should. Therefore, incorrect risk assessments will be made.

By understanding how the model is limited, auditors and companies can understand how to mitigate these and still provide the proper risk assessments.

Conclusion

Hopefully, this article helped you understand the audit risk model. Anyone interested in auditing, accounting, or business management should make sure they know this. It is a special model that helps uncover the audit risk.

The model analyzes various risks using the three main financial statements: the income statement, the balance sheet, and the statement of cash flows. The auditor can then use the model to understand the audit risk and make their auditor’s opinion.

The model then uses inherent, detection, and control risks to solve audit risks. However, the model does not always quantify risk.

While the model benefits the auditor and the business, it has a few drawbacks. These include subjectiveness, lack of scope, the chance of fraud, expenditures of time and resources, and incomplete information.

Businesses should make sure they address each of these so that the model works the best.

Thanks for reading this article. Check out Wall Street Oasis for other articles and courses that can kickstart your career in business.

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