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Practitioners — Public Auditors · published 2026-05-28 · methodology v2.1

AI Hallucinations Affecting Public Auditors in Singapore

Findings — impact summary

This is the consolidated view of findings. Click 'see details →' on any item for the full details for each finding.

  1. Finding 1. Applicable notice for financial holding companies under MAS capital adequacy rules

    A public auditor who relies on the AI-generated notice designation when scoping an engagement involving a financial holding company incorporated in Singapore may advise a client to comply with — or be audited against — an instrument that does not exist under that label. If the actual applicable MAS instrument imposes materially different capital adequacy requirements, the audit scope will be incorrect, the findings will be unreliable, and the client faces potential non-compliance with MAS. MAS has broad supervisory powers over banks and related entities and may treat an inadequately scoped external audit as a failing of the auditor's professional obligations under the Accountants Act.

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  2. Finding 2. Yellow highlighting convention in MAS Notice 637 (Amendment) 2024

    Public auditors reviewing the MAS Notice 637 (Amendment) 2024 must correctly interpret yellow-highlighted passages to understand both the operative date of amended provisions and whether specific provisions are entirely new to the notice. An auditor who follows an incorrect AI characterisation — treating yellow highlights as generic editorial markers rather than as indicators of a distinct effective date or newly introduced provisions — may misread the transitional timetable and advise a client that a provision is already operative when it is not, or overlook a new obligation entirely. The professional consequence is a misleading representation to the client about the current state of their regulatory obligations, with potential liability under the Accountants Act if the misrepresentation influences the client's regulatory conduct.

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  3. Finding 3. Scope and exclusions of Annex 4D in consolidated MAS Notice 637

    For a public auditor scoping a capital adequacy audit, misidentifying Annex 4D as belonging to the leverage ratio framework rather than the standardised approach credit risk framework would misdirect the evidence-gathering phase of the engagement. Off-balance sheet items treated under the SA credit risk framework carry specific risk-weight and credit conversion factor requirements that differ from leverage ratio conventions; reviewing them under the wrong framework would produce incorrect conclusions about a bank's capital adequacy position. If this mischaracterisation flows into a client report, the auditor has produced a report that does not reliably test the bank's compliance with MAS Notice 637, exposing the auditor to professional disciplinary action and the client to regulatory risk.

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  4. Finding 4. Subject matter of Annex 6C in consolidated MAS Notice 637

    A public auditor who accepts the AI's characterisation of Annex 6C without verification may structure audit procedures around the wrong set of valuation requirements. If Annex 6C in fact governs a different topic within Part VI of MAS Notice 637, the auditor will have tested an incorrect obligation and may have left the actual Annex 6C requirement entirely unreviewed. Given that MAS Notice 637 governs licensed banks subject to ongoing MAS supervision, an audit that systematically misidentifies applicable annex content risks attracting regulatory scrutiny of both the bank's compliance and the quality of the external audit.

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  5. Finding 5. Coverage of Division 4 of Part VI in MAS Notice 637

    A public auditor who accepts the AI's characterisation of Division 4 of Part VI as covering capital instrument submission requirements will direct audit procedures toward submission mechanics rather than whatever Division 4 actually governs. If the division covers a substantive capital requirement — a classification test, a calculation, or a trigger condition — the audit may fail to examine a material obligation. The auditor's working papers would record a scope decision that, if challenged by MAS or the Institute of Singapore Chartered Accountants, could not be supported by reference to the notice text, and the auditor may have no basis to demonstrate that the relevant requirement was tested.

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