ECB clarifies internal model assessment for counterparty credit risk

The European Central Bank has published an updated guide on its assessment methodology for the internal model method (IMM) for counterparty credit risk. The guide, effective June 2026, now exclusively focuses on IMM, removing previous references to advanced CVA requirements.

Targeting internal model compliance

The ECB Guide on assessment methodology (EGAM) outlines how the ECB intends to investigate compliance with the existing legal framework for internal models related to counterparty credit risk (CCR).

CCR, defined as the risk of a counterparty defaulting on derivative or repurchase transactions, is a key financial risk for institutions.

The updated EGAM, effective June 2026, specifically details the assessment methodology for the internal model method (IMM) for calculating CCR exposure.

This version 2.0 notably deletes all sections and references to the advanced method for own funds requirements for credit valuation adjustment (A-CVA) risk.

This change reflects the substitution of A-CVA by SA-CVA from January 1, 2025, for which the European Banking Authority (EBA) is mandated to develop regulatory technical standards.

The guide provides transparency on the methodologies used by the ECB to assess CCR model components and offers optional guidance for significant institutions' self-assessment of their IMM models, particularly in the absence of mandated EBA regulatory technical standards for IMM assessment.

Filling a regulatory gap

The EGAM addresses a regulatory gap, as the Capital Requirements Regulation (CRR) does not mandate specific regulatory technical standards (RTS) for the assessment methodology of the internal model method (IMM) in counterparty credit risk.

This contrasts with the internal ratings-based (IRB) approach for credit risk or the internal model approach (IMA) for market risk, where EBA-mandated RTS exist.

The ECB's guide fills this void, providing its interpretation until potential future EBA regulation.

Structured broadly in line with the IRB RTS, the EGAM covers key areas such as general provisions, IMM implementation, model validation, internal governance, use tests, documentation, exposure quantification, validation, stress testing, and IT processes.

The document emphasizes its comprehensive application to maintain coherence in the assessment process for supervisory decisions and ongoing model monitoring.

Clarity in a complex landscape

This updated guide offers much-needed clarity for banks navigating complex counterparty credit risk internal model requirements.

By explicitly removing A-CVA, the ECB streamlines focus, providing a more targeted framework for IMM compliance and supervisory assessment.

However, its interim status, pending potential EBA RTS, implies a degree of uncertainty for long-term model development strategies.