Estimating the expected credit loss in the
portfolio of loans and advances to customers
As at 31 December 2022, the gross balance of
mortgage loans and advances amounted to
PLN 19,041,457 thousand with the level of
expected credit loss in the amount of PLN
86,093 thousand. In accordance with the
International Financial Reporting Standard 9
"Financial Instruments", the Management is
determine the expected credit losses (“ECL”) in
the portfolio of loans and advances to
customers that may occur within 12 months or
the remaining life of the asset, depending on
the classification of individual assets into risk
categories (“baskets”), taking into account the
impact of future macroeconomic conditions on
the level of credit risk allowances.
The Bank's Management Board monitors the
correct functioning of the models by comparing
the results estimated by the models to actual
credit losses (back-testing procedures) to
ensure that the level of expected credit losses
in the portfolio of loans and advances to
customers is appropriate.
We considered the level of expected credit
losses in the portfolio of loans and advances to
be a key audit matter due to:
•
significant judgment applied by the
Bank's Management when modelling
future scenarios and forecasting
macroeconomic variables, when
assuming the probability of occurrence
of individual scenarios and when
applying expert adjustments to reflect
characteristics that have not yet been
included in the models;
•
high degree of uncertainty related to
estimating the expected credit losses
•
comprehensiveness of audit
procedures and audit evidence
obtained due to the level of complexity
of calculations and the amount of data
used to estimate expected credit
losses.
As part of our procedures, we updated our
understanding of the internal control environment for
the recognition and calculation of expected credit
losses. We verified the effectiveness of selected key
control mechanisms implemented by the Bank, in
particular:
•
procedures in the area of entering data used
for estimation of expected credit losses.
•
procedures for timely and complete
identification of a significant increase in credit
risk (stage 2) and impairment (stage 3)
As part of the work on statistical models, we
performed the following procedures, for which we
engaged our internal credit risk modelling specialists:
•
assessing whether the methodology used by
the Bank for estimating credit losses in the
portfolio of loans and advances complies with
the requirements of IFRS 9, in particular,
verifying the Bank's approach in the
application of the criteria for identifying a
significant increase in credit risk, the default
definition, probability of default and loss given
default and forward looking information in
estimating expected credit losses;
•
assessment of the Bank's assumptions and
expert adjustments applied in the model;
•
critical analysis of key judgments and
assumptions, including macroeconomic
scenarios and assumed probabilities of
individual scenarios;
•
analysis of model stability and its adjustment
to current conditions;
•
independent tests of credit risk parameters
In addition, we performed the following procedures:
•
we reconciled selected inputs used to
determine default parameters and estimation
of expected credit losses.
•
we performed a recalculation of expected
credit losses based on the assumptions
adopted by the Bank;
•
we performed analytical procedures