Why Your Loan Portfolio Needs an Immutable Audit Trail
Regulators expect full documentation of every ECL classification decision. Without an immutable audit trail, your IFRS 9 process is exposed to regulatory findings, restatement risk and audit failures.
What regulators expect
EBA Guidelines on ECL estimation (EBA/GL/2017/06) require institutions to document the methodology, assumptions and judgements used in ECL calculation. This means every stage classification decision must be traceable, with the rule or model that triggered it.
What an IFRS 9 audit trail must contain
For each loan: the input data used (DPD, rating, LTV, sector outlook), the SICR indicators detected and which IFRS 9 paragraph triggered them, the stage assigned and the ECL calculated, the classification method (deterministic rule or AI-assisted), and a timestamp.
The risk of missing audit trail
Without documentation, auditors cannot verify your ECL process. This leads to qualified audit opinions, regulatory findings from the ECB or national competent authority, and potential restatement of financial statements — a significant reputational and operational risk.
Immutability matters
An audit trail is only valuable if it cannot be altered. Regulators expect that once a classification decision is logged, it cannot be changed retroactively. This means append-only storage with timestamped records.
How LoanStage handles audit trail
LoanStage logs every classification decision in an immutable audit table. Each entry records: loan_id, input data, SICR indicators triggered (with IFRS 9 §B5.5.17 references), stage result, ECL result, classification method, and timestamp. The audit log is exportable as CSV for regulatory submissions.
LoanStage logs every ECL decision with IFRS 9 references. Export your audit trail anytime.
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