To help audit committees of banks in their role of overseeing banks’ external audits, the Basel Committee on Banking Supervision (‘the Committee’) has issued a supplemental note1 dealing specifically with the audit of expected credit loss (ECL) estimates under IFRS 9 Financial Instruments. This elaborates on its 2014 guidance and aims to help audit committees when assessing the work of the external auditor around ECL estimates.
Helping audit committees assess auditor’s work on ECL estimates
Auditor expected to consider five key components of ECL estimate
The Committee expects an external auditor to consider five key components of an ECL estimate and sets out key questions that an audit committee can use to challenge the external auditor on each of these components of an ECL estimate:
It also sets out its expectations on audit quality and considers that when assessing an external auditor’s audit of the ECL estimate, key themes to assess include professional scepticism, management bias, risk assessment, internal control and the use of experts.
Read the guidance and consider how it might help for forthcoming audits of ECL estimates – in particular for forecasts and forward-looking information in the ECL estimate, the construction of macroeconomic scenarios and weightings and model performance.
1 Applies to internationally active banks subject to a financial statement audit, including those within a banking group; and holding companies whose subsidiaries are predominantly internationally active banks.
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