In response to implementation feedback and concerns about the costs and operability of certain provisions, the Public Company Accounting Oversight Board (PCAOB) voted unanimously to adopt targeted amendments to QC 1000 – its quality control standard adopted in 2024 under previous leadership. Among other changes, the board decided to eliminate two provisions that proved to be especially thorny during the initial rulemaking process: the external quality control function (EQCF) and the design-only requirements.
The PCAOB believes that the amendments will reduce compliance burdens without compromising its mission to protect investors.
“Strong, effective auditing standards underpin the PCAOB’s oversight, and QC 1000 is one of the most consequential standards that the board has ever adopted,” said PCAOB Chairman Demetrios Logothetis in a statement. “The targeted amendments adopted today – which were informed by stakeholder feedback during the implementation process and continued scrutiny of the standard’s costs and benefits – help us not only to fulfill our critical responsibility of getting QC 1000 right, but also to establish a foundation for our proposed strategic goal of modernizing the PCAOB’s inspections with a QC-focused approach.”
EQCF
In particular, the PCAOB decided to rescind the EQCF provision that applied only to firms that audit more than 100 issuers. These larger firms had to establish an EQCF that includes at least one independent person who will evaluate the significant judgments made and the related conclusions reached by the firm when evaluating and reporting on the effectiveness of the QC system.
But auditors and the U.S. Chamber of Commerce, which represents companies, strongly objected to the EQCF, arguing that this is not a logical outgrowth of the PCAOB’s 2022 proposal, among other problems, when QC 1000 was submitted to the Securities and Exchange Commission (SEC) for approval two years ago.
Moreover, some firms told the PCAOB they experienced challenges in implementing the EQCF, including difficulty identifying qualified individuals for the role.
The SEC oversees the PCAOB, and changes to its standards must be approved by the commission before they can go into effect. The capital market regulator is expected to approve the changes.
While this requirement was criticized by the industry, the members of the PCAOB’s Investor Advisory Group (IAG) in a comment letter said EQCF must not be eliminated.
“While we recognize the concerns about potential costs, liability, and implementation, we believe some form of independent challenge is critical to an effective” QC system, Jeffrey Mahoney, general counsel of the Council of Institutional Investors who serves on the IAG, wrote in July.
There are at least two potential flaws with the PCAOB’s cost-benefit analysis, he said.
“First, the PCAOB may have understated the potential benefits of the EQCF requirement by failing to consider the impact of the ongoing trend of private equity firms investing in accounting firms,” Mahoney wrote.
Second, he said the board may have overstated the potential costs.
“While acknowledging the narrow responsibilities of an individual serving the EQCF, the PCAOB estimated the costs by considering the compensation of a ‘non-employee director at S&P 500 public companies’ and the ‘remuneration for individual independent nonexecutives (INEs) under the U.K.’s audit firm governance rules.'”
“We believe using either of those costs as benchmarks significantly overstates the costs of the EQCF,” Mahoney wrote.
During the meeting to adopt the amendments, Chairman Logothetis partly responded to criticisms in rescinding the EQCF. He said that some supporters of the EQCF appear to believe the potential benefit—a safeguard against firms’ commercial pressures that may negatively affect audit quality—is “much more certain than was reflected in the 2024 adopting release.”
The amendment rescinds the EQCF requirement because, while an external reviewer could offer a fresh perspective, the role is not structured to reliably counter audit firms’ commercial pressures. Since the firm would choose, pay, evaluate, retain, and potentially remove the EQCF, the reviewer could have incentives to preserve the firm relationship rather than challenge judgments that conflict with investor interests, he said.
For an EQCF to function as a true safeguard, stronger independent governance and public-accountability arrangements would be needed—such as independent control over appointment, compensation, evaluation, and removal. Creating such arrangements for private audit firms raises practical and institutional challenges.
Moreover, he said it does not prevent investors, audit committees, or firms from voluntarily seeking an additional independent review when they believe its benefits justify the cost.
“That is the free market at work.”
While PCAOB member George Botic voted for the amendments as a whole, he said he is disappointed about the complete rescission of the EQCF. He noted that the board had considered an alternative of applying the requirement only to firms that audit more than 500 issuers—which would apply to five firms.
While he recognizes implementation concerns, he is “not persuaded by the release’s statement that ‘the implementation concerns apply equally to all firms.'”
“I am skeptical that costs and implementation concerns are significant with respect to the five firms that audit more than 500 issuers,” he said.
Further, he said that he’s not persuaded that economic analysis can be expected to clearly compel one conclusion or another.
“The possible costs and contemplated benefits are such that they perhaps cannot be quantified with a meaningful degree of confidence,” he said. “Indeed, in its 2024 adopting release, the Board did not pretend that economic analysis of costs and benefits made an incontrovertible case for the requirement. Similarly, in my view at least, the recommended release before us today cannot be viewed as making an obvious case for rescission. That is even more emphatically the case if the focus is narrowed to firms that audit more than 500 issuers.”
Design-only requirement
While smaller firms did not need to worry about the EQCF, they criticized the provision in QC 1000 that required all registered firms to design a QC system even if they have not performed and do not plan to perform engagements under PCAOB standards.
The PCAOB rescinded the design-only requirement, and QC 1000 will apply only to firms that are required to comply with applicable professional and legal requirements with respect to any engagement.
Other rollbacks
The final Release No. 2026-007 contains other amendments:
- Provides increased flexibility in filling certain specified roles in the QC system by permitting roles to be assigned to non-firm personnel and divided among multiple individuals;
- Simplifies communication requirements relating to metrics that the firm communicates to external parties about its audit practice, firm personnel, or engagements;
- With respect to identified engagement deficiencies, requires evaluation of whether similar engagement deficiencies exist on other engagements only if the identified deficiency resulted or could result in a failure to obtain evidence to support the conclusion reached on an engagement or an inappropriate overall conclusion on the subject matter of an engagement;
- Revises the definition of QC deficiency to make clear that, when firms have implemented more than one quality response to address the same quality risk, they can take those other quality responses into account when determining whether a QC deficiency exists;
- Allows firms to select the date as of which they evaluate the effectiveness of their QC system, rather than September 30;
- Revises the QC system evaluation conclusions to align more closely with the conclusions in other quality management standards, while retaining a structured process, including specified factors for consideration, to guide the evaluation; and
- Simplifies the requirements for retention of QC system documentation and abbreviate the retention period from seven to five years.
The amendments are substantially similar to the proposed revisions issued for comment in June, a staff member said during the meeting.
The revisions align more closely with quality management standards issued by the International Auditing and Assurance Standards Board (IAASB) and the AICPA.
The effective date will remain the same—December 15, 2026.
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