Impairment of loans and advances to
customers
As at 31 December 2020, Loans and advances to
customers amounted to N5.6billion representing
30% of total assets and the impairment
allowance amounted to N837million .The
assessment of impairment for loans and advances
is significant as it involves judgment due to
the level of subjectivity inherent in estimating the
impact of key assumptions on the recoverable
amount of the loan balances.
The use of the Expected Credit Loss model for
the computation of impairment allowance
requires the application of certain indices which
are estimated from historical financial data within
and outside the Bank, which includes;
- the determination of criteria for
significant increase in credit risk (SICR) for
staging purpose.
- assessing the relationship between the
quantitative and qualitative factors incorporated
in determining the Probability of Default (PD),
the Loss Given Default (LGD), and the Exposure
at Default (EAD).
-forward looking information and the probability
weighting used in the ECL Model
- factors considered in cash flow
estimation including timing and amount.
- factors considered in collateral
valuation including hair-cut and time to
realization.
Given the level of complexity and judgment
involved in the determination of the ECL, and the
material balance of the provision, we considered
the impairment of loan and advances as a key
audit matter in the financial statements.
The Bank’s accounting policy on impairment and
related disclosures on credit risk are shown in
notes 3.2, 3.3 and 18.
Our audit approach with respect to the audit of impairment
on loans and advances to customers for the year ended 31
December 2020:
We obtained an understanding of the Bank’s credit policy,
we then tested and evaluated the design and operating
effectiveness of the controls around the processes of credit
assessment, loan classification and loan impairment
assessment.
We checked and understood the key data sources and
assumptions used in the Expected Credit Loss model used
by the Bank to determine impairment provisions.
(i) We checked the reasonableness of the Bank’s
ECL methodology by considering whether it reflects
unbiased and probability-weighted amounts that is
determined by evaluating a range of possible outcomes, the
time value of money and reasonable and supportable
information at the reporting date about past events, current
conditions and forecasts of the future economic condition,
information considered include: industry historical default
rates, foreign exchange rate and Gross Domestic Product
(GDP) growth rates;
(ii) For forward looking assumptions used by the
Bank in its ECL calculations, we held meetings with
management and corroborated the assumptions using
public available information comprising foreign exchange
rate and Gross Domestic Product (GDP) growth rate.
(iii) We evaluated the appropriateness of the basis of
determining Exposure at Default, including the contractual
cash flows, outstanding loan balance, loan repayment type,
loan tenor and effective interest rate;
(iv) For Probability of Default (PD) used in the ECL
calculations, we checked the historical movement in the
balances of facilities between default and non-default
categories for each other;
(v) We checked the calculation of the Loss Given
Default (LGD) used by the Bank in the ECL calculations,
including the appropriateness of the use of collateral and
the resultant arithmetical calculations;
(vi) We re-performed the calculations of impairment
allowance for loans and advances using the Bank’s
impairment model and validated key inputs. For loans and
advances which have shown a significant increase in credit
risk, the recalculation was based on the amount which the
Bank may not recover throughout the life of the loans while
for loans and advances that have not shown significant
increase in credit risk, the recalculation was based on the
losses expected to result from default events within a year.