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AI Summary of Article 163 Probability of default (PD)

This provision outlines the methodology for calculating the Probability of Default (PD) and expected loss amounts for retail exposures, specifically emphasising the importance of the higher one-year PD associated with internal borrower grades. Specifically, PD input floor values are set at 0.1% for Qualified Revolving Retail Exposures (QRRE) and 0.05% for other retail exposures.

Furthermore, the document stipulates that PD for obligations in default is to be treated as 100%, whilst for dilution risk associated with purchased receivables, PD should equate to the expected loss estimates unless reliable decomposition into PD and Loss Given Default (LGD) is achievable. This framework supports the recognition of unfunded credit protection in compliance with the relevant articles.

Version status: Amended | Document consolidation status: Updated to reflect all known changes
Version date: 1 January 2025 - onwards
Version 5 of 5

Article 163 Probability of default (PD)

1. For the sole purpose of calculating risk-weighted exposure amounts and the expected loss amounts of those exposures, and in particular for the purposes of Articles 154 and 157, and Article 158(1), (5) and (10), the PD for each exposure that is used as an input of the risk-weighted exposure amounts and expected loss formulae shall be the higher of the one-year PD associated with the internal borrower grade or pool to which the retail exposure is assigned and the following PD input floor values:

(a) 0,1 % for QRRE revolvers;

(b) 0,05 % for retail exposures which are not QRRE revolvers.

2. The PD of obligors or, where an obligation approach is used, of exposures in default shall be 100 %.