Introduction

What Is Auditing and Why Does It Matter?

According to a recent survey,1 publicly-held companies paid their external auditors, on average, $2.4 million in fees to perform audits of their financial statements for the 2022 fiscal year, with larger public companies paying an average of $5.6 million in audit fees. Data from reports filed with the SEC indicates that the world’s largest four accounting firms (the Big 4) earned nearly $15.5 billion in audit fees—just from publicly held companies—for their audits of fiscal year 2023 financial statements.2 Why would these companies pay their auditors such large amounts of money each year? And what are the companies paying the auditors to do?

The short answer is two-fold: First, federal law requires these companies to have an annual audit of their financial statements. Second, because auditors improve the quality and credibility of these companies’ financial information, the companies are willing to pay substantial audit fees because the increased perception of credibility for their financial statements means that investors, lenders, and other interested parties are more likely to engage in transactions with the company. This topic discusses in greater depth what auditors do, our society’s need for auditors, and the roles they play in improving the quality of information.