The clearest recent example of the divide in PCAOB vs AICPA audit standards came on February 11, 2025, when the Public Company Accounting Oversight Board withdrew two rules it had adopted only months earlier: one requiring standardized firm and engagement metrics, and one expanding firm reporting obligations. The withdrawal followed direct consultation with the Securities and Exchange Commission and arrived after sustained opposition from the AICPA and many U.S. accounting firms. For companies that file audited financial statements with the SEC, the reversal changes what their auditors will be required to disclose, at least for now.
Quick answer: The PCAOB withdrew its firm and engagement metrics rule (new Form FM and an amended Form AP) and its firm reporting rule from SEC consideration on February 11, 2025, after consulting with the SEC and facing strong objections from the AICPA. The rules, adopted November 21, 2024, would have required registered audit firms to report eight standardized metrics, plus expanded operational, financial, governance, and event-driven information under the firm reporting rule. Both projects remain on the PCAOB’s agenda, so issuer-audit clients should expect a revised proposal rather than a permanent end to enhanced auditor transparency.
This episode matters beyond the two specific rules. It shows how a PCAOB standard moves from adoption to enforceability, where the SEC fits into that chain, and how the AICPA can influence the outcome even after a rule has been formally adopted. Understanding that sequence helps audit committees and finance leaders read the next round of rulemaking with a clear eye rather than reacting to headlines.
What the PCAOB Adopted, and Then Withdrew
On November 21, 2024, the PCAOB adopted amendments creating two new disclosure regimes. The first, firm and engagement metrics, would have required registered firms to report eight standardized metrics through a new Form FM at the firm level and an amended, renamed Form AP, “Audit Participants and Metrics,” at the engagement level. The second, firm reporting, would have expanded the existing annual Form 2 and special-event Form 3 filings.
The eight metrics covered ground that auditors had never been required to publish in a standardized way. According to reporting by the Journal of Accountancy, firms that served as lead auditor for at least one accelerated filer or large accelerated filer would have reported standardized data points covering partner and manager involvement, workload, training hours for audit personnel, the experience of audit personnel, industry experience, retention of audit personnel, the allocation of audit hours, and restatement history. Retention and restatement history applied at the firm level only.
The separate firm reporting rule reached beyond those eight metrics. It would have expanded the Form 2 and Form 3 filings to capture additional financial information such as aggregate fees billed to issuer clients, governance details such as the names of individuals holding certain leadership positions, network relationships, and material events affecting a firm’s audit services. Taken together, the two packages would have given investors a far more granular view of how a given firm staffs and runs its audits.
The intent behind the metrics package was comparability. Two firms can issue the same audit opinion while operating very differently in terms of partner hours, staff turnover, and workload per professional. Standardized metrics were meant to let investors and audit committees compare those operating realities across firms and across individual engagements, rather than relying on marketing materials or anecdote.
Neither rule had taken effect. PCAOB standards require SEC approval before they bind registered firms, and that approval never came. The metrics rule had been scheduled to take effect no earlier than October 1, 2027, with a phased rollout, but the PCAOB pulled both rules from the SEC’s docket before the agency acted. Because the SEC sign-off is the step that gives a PCAOB rule legal force, withdrawing the filing before approval meant the requirements never reached firms at all.
The PCAOB framed the move carefully. As Accounting Today reported, the board said it withdrew the standards from SEC consideration after consultation with the SEC in order to keep working toward versions of both projects that could earn the support needed to be approved. That framing is important: the board described the withdrawal as a step toward a more acceptable rule, not as an abandonment of the underlying objectives.
Why Did the AICPA Push Back on the Metrics Rule?
The withdrawal did not happen in a vacuum. In a December 19, 2024 comment letter, the AICPA urged the SEC to reject the metrics rule outright, and the dispute became the most visible recent flashpoint in PCAOB vs AICPA audit standards debates.
The AICPA’s central argument was economic. It warned that the reporting burden would fall hardest on small and midsized firms, and that some of those firms might exit the public company audit practice entirely rather than absorb the cost. Fewer audit firms, the AICPA argued, would mean fewer options for smaller accelerated filers and the potential for higher fees and less favorable engagement terms.
That concern follows a clear chain of logic. Building systems to capture partner involvement, workload, retention, and restatement data at the engagement level is a fixed cost that is easier for the largest firms to absorb than for a small practice with a handful of issuer clients. If the smallest firms conclude that a few public company audits no longer justify the compliance investment, they may drop those engagements, leaving smaller filers with a thinner market of available auditors.
The institute also raised an enforcement concern. It cautioned that performance metrics could feed into the PCAOB’s inspection and enforcement program, raising the risk of enforcement actions for minor, unintentional reporting errors, and it noted that the board had declined to add a threshold based on the severity of such mistakes. In practice, a firm worried that a small data error could trigger an enforcement matter has an incentive to over-invest in compliance review, which compounds the cost concern described above.
After the withdrawal, AICPA leadership called the decision the right one and said the proposed requirements would have harmed U.S. capital markets and the investing public. That statement signaled that the AICPA viewed the outcome as a substantive policy win, not merely a procedural pause.
Whether you read the reversal as a win for proportionate regulation or a setback for transparency, the practical takeaway is the same: the metrics that nearly became public are still on the table, and the next version will be shaped by this fight. Companies that rely on independent audit and assurance services should track how the revised proposals balance disclosure against audit-market capacity.
What Does the Reversal Mean for Issuer-Audit Clients?
For a public company being audited today, the immediate effect is that none of the withdrawn requirements apply. Your auditor does not file Form FM, the renamed Form AP metrics regime is not in force, and the expanded Form 2 and Form 3 reporting obligations did not take effect. The status quo on auditor disclosure continues.
That said, the relief is procedural, not permanent. The PCAOB stated explicitly that both projects remain on its agenda. The board withdrew the rules to redesign them, not to abandon the underlying goals of greater auditor transparency and comparability across firms.
Issuer-audit clients should plan for a revised proposal that is likely to be narrower in scope or more graduated in how it treats firms of different sizes. The AICPA’s core objection was about the burden on smaller firms, so a future version may include thresholds, phased timelines, or reduced metric sets designed to keep those firms in the public company audit market.
There is also a strategic dimension for smaller issuers specifically. The AICPA’s warning was that aggressive reporting rules could shrink the pool of firms willing to audit smaller, less complex accelerated filers. If you are a smaller filer, the health of your audit-firm options is a real planning consideration, and it is worth discussing audit continuity and succession with your current firm well before any new rule arrives.
The broader lesson is that auditor disclosure rules can affect not just the information you receive but the market in which you buy audit services. A rule that changes the economics of issuer audits for smaller firms can ripple through pricing, availability, and engagement terms for the companies those firms serve.
How Should You Prepare for the Next Round?
Preparation here is mostly about monitoring and relationship management rather than compliance work, because nothing is currently required. The first step is to stay aware of the PCAOB’s standard-setting agenda, since the board has signaled that both projects will return in some form.
The second step is to keep an open dialogue with your audit firm about how a revised metrics or reporting rule could affect its capacity, its fees, and its willingness to continue serving issuers in your size range. Firms that have already invested in data systems for partner involvement, workload, and restatement tracking will adapt to any reissued rule faster than those that have not.
The third step is to treat audit quality and transparency as a governance topic regardless of what the PCAOB ultimately requires. Audit committees that ask their auditors about staffing, partner involvement, and quality indicators today will be well positioned no matter how the rules evolve. A firm that provides audit and assurance services for issuers can help your audit committee build those questions into its annual oversight process.
A practical way to operationalize this is to add a recurring agenda item for the audit committee that reviews the auditor’s staffing and quality indicators each year. Doing so means the committee already has the conversation muscle in place if and when a reworked PCAOB rule makes some of those metrics mandatory.
The contrast between PCAOB vs AICPA audit standards on this issue is not going away. The next proposal will test whether the two organizations can agree on a transparency framework that informs investors without thinning the ranks of firms available to audit public companies.
Frequently Asked Questions
When did the PCAOB withdraw the firm and engagement metrics rules?
The PCAOB filed notice to withdraw both the firm and engagement metrics rule and the firm reporting rule from SEC consideration on February 11, 2025. The rules had originally been adopted by the board on November 21, 2024, but never received the required SEC approval to take effect.
Do public companies or their auditors have to comply with the metrics rules now?
No. Because PCAOB standards must be approved by the SEC before they bind registered firms, and the rules were withdrawn before approval, none of the requirements apply. Auditors are not filing Form FM, the amended Form AP metrics, or the expanded firm reporting forms.
Why did the AICPA oppose the PCAOB metrics rules?
The AICPA argued the rules would impose a heavy reporting burden, particularly on small and midsized firms, and could drive some of those firms out of the public company audit market. It also raised concerns that performance metrics could increase enforcement exposure for minor reporting errors and that fewer audit firms would mean higher costs and fewer options for smaller issuers.
Are the firm and engagement metrics gone for good?
No. The PCAOB stated that both the metrics project and the firm reporting project remain on its standard-setting agenda. The board withdrew the rules to revise them after consulting with the SEC, so issuer-audit clients should expect a reworked proposal rather than a permanent removal of enhanced auditor disclosure.
