When people ask who does audits, they are usually referring to the independent examination of financial records, but the reality is far more layered. An audit is a systematic evaluation performed by qualified professionals to assess accuracy, compliance, and risk within an organization. These examinations provide critical assurance to stakeholders, confirming that operations align with established standards and regulations. Understanding the specific entities and individuals responsible for these processes clarifies the integrity behind financial reporting and governance.
Primary Responsibility: External Audit Firms
The most visible answer to who does audits, particularly financial statement audits, lies with external audit firms. These are independent, third-party organizations licensed to operate within specific jurisdictions. They are contracted by a company’s board or audit committee to review the financial statements prepared by management. The primary goal is to express an opinion on whether the statements are presented fairly, in all material respects, according to the applicable financial reporting framework.
Large international networks like the "Big Four"—Deloitte, PwC, EY, and KPMG—handle audits for major public corporations due to their global reach and specialized expertise. Smaller regional firms typically serve private companies, non-profits, and local government entities. These firms deploy teams of auditors who follow strict methodologies, testing transactions and internal controls to mitigate the risk of material misstatement.
Regulatory Oversight and Public Companies
For publicly traded companies, the question of who does audits is heavily regulated to protect investors. In the United States, the Public Company Accounting Oversight Board (PCAOB) oversees the audits of public companies to ensure transparency and auditor independence. These audits are not just a formality; they are a legal requirement designed to maintain market confidence. The external auditor must adhere to rigorous standards, and their findings are scrutinized by regulatory bodies before the results are made public.
Internal Auditors: The Organization's Own Watchdogs
While external auditors focus on financial statements, internal auditors work directly for the organization itself. They are employees or contractors who evaluate the effectiveness of risk management, control, and governance processes. Answering the question of who does audits internally reveals a function dedicated to operational improvement rather than financial opinion.
Internal auditors assess everything from IT security and fraud prevention to compliance with company policies. They provide management with recommendations to improve operations and are often involved in fraud investigations or process optimization projects. Their work is confidential and intended to help leadership strengthen the organization from within.
Government and Regulatory Auditors
Public funds and regulatory compliance require a different layer of oversight, leading to the question of who does audits at the governmental level. Government audit institutions, such as the Government Accountability Office (GAO) in the United States, are responsible for examining how taxpayer dollars are spent. These audits ensure that federal, state, and local agencies are using resources efficiently and in accordance with laws and budgets.
Similarly, regulatory bodies in industries like banking, healthcare, and energy conduct their own audits. For example, banking regulators review financial institutions to ensure solvency and compliance with monetary laws. These audits are less about financial statement accuracy and more about legal adherence and public safety.
Specialized and Forensic Audits
The landscape of who does audits expands further when considering specialized fields like IT audits or environmental compliance audits. IT auditors focus on the security and integrity of data systems, ensuring that technology infrastructure supports the business safely. Environmental auditors verify that an organization’s operations meet environmental regulations and sustainability goals.
Forensic auditors represent another critical subset, often acting as financial detectives. They investigate potential fraud, embezzlement, or financial disputes. When litigation or regulatory investigations arise, these professionals are called upon to analyze complex financial data and present their findings in a manner suitable for legal proceedings.
