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AI Summary of Article 159 Treatment of expected loss amounts, IRB shortfall and IRB excess

This regulation outlines the methodology for institutions to calculate the 'IRB excess' and 'IRB shortfall' concerning expected loss amounts from specified exposures under Article 158. Entities must subtract certain credit risk adjustments and additional value adjustments related to these exposures from the total calculated amounts. A positive result yields an 'IRB excess', while a negative result indicates an 'IRB shortfall'.

It is crucial to note that discounts on purchased balance-sheet exposures must be treated as specific credit risk adjustments. Furthermore, adjustments for defaulted and securitised exposures shall not contribute to the calculation of either excess or shortfall, ensuring a focused approach to credit risk management.

Version status: Amended | Document consolidation status: Updated to reflect all known changes
Version date: 1 January 2025 - onwards
Version 6 of 6

Article 159 Treatment of expected loss amounts, IRB shortfall and IRB excess

1. Institutions shall subtract the expected loss amounts of exposures referred to in Article 158(5), (6) and (10) from the sum of all of the following:

(a) the general and specific credit risk adjustments related to those exposures, calculated in accordance with Article 110;

(b) additional value adjustments due to counterparty default determined in accordance with Article 34 and related to exposures for which the expected loss amounts are calculated in accordance with Article 158(5), (6) and (10);

(c) other own funds reductions related to those exposures other than the deductions made in accordance with Article 36(1), point (m).