Modernizing US PCAOB Audit Inspections

The US Public Company Accounting Oversight Board (PCAOB) has published staff discussion materials outlining a potential approach to modernizing its audit inspection program, including a shift toward a quality control-informed, risk-based model and changes to inspection reporting, remediation, and use of technology.

The materials were shared with the PCAOB’s Inspections Modernization Council (IMC), an outside advisory group launched in May to provide perspectives on the Board’s inspection program. The approach described therein would move from an “engagement-centered” model toward an integrated approach centered on each firm’s system of quality control (SoQC). Firm-level risk assessments would determine the scope of QC testing and engagement reviews. These assessments would draw on factors including client and engagement risk, people, governance and culture, QC effectiveness, and external signals. Lower-risk firms could face smaller samples and some reliance on their own testing, while higher-risk firms could face broader testing and larger engagement samples.

The materials also outline new severity frameworks for engagement and QC findings. Engagement findings would range from “Audit Failure / Not Independent” to “No / Limited Improvement Required,” while QC findings would be assessed based on severity and pervasiveness. Inspection reports could also include a new “firm at a glance” section and a simpler division between public and non-public findings.

On remediation, the materials include new communication protocols, milestone checkpoints, and guidance on satisfactory and unsatisfactory remediation trends during the Board’s 12-month remediation period. They also address technology, noting that roughly 90% of registration and inspection data remains unstructured in Word and Excel files, and describing early AI pilots to support inspection work.

The materials were prepared by PCAOB staff for discussion purposes. Except for authorizing their release, the Board has not approved, adopted, requested, directed, selected, or authorized them, which remain subject to further development, revision, or withdrawal.