Company: UMBFO
Filing Date: 2025-02-27
Form Type: 10-K
Source: 0000950170-25-028420
Chunk: 129

Company: UMB FINANCIAL CORP
Filing Date: 2025-02-27
Form: 10-K
Item: Item 1B
Chunk 129
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 providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Allowance for credit losses on certain loans evaluated on a collective basis

As discussed in Notes 1 and 3 to the consolidated financial statements, the Company’s total allowance for credit losses on loans was $259.1 million as of December 31, 2024, a substantial portion of which related to the allowance for credit losses for loans evaluated on a collective basis for the commercial and industrial and commercial real estate segments (the collective ACL). The collective ACL includes the measure of expected credit losses on a pool basis for loans where similar risk characteristics exist and is determined using relevant available information from internal and external sources related to historical credit loss experience, current 

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conditions, and reasonable and supportable economic forecasts. The Company uses probability of default (PD) and loss given default (LGD) models for the commercial and industrial and commercial real estate segments. For the commercial and industrial segment, the collective ACL is calculated by modeling PD over future periods multiplied by historical LGD multiplied by contractual exposure at default minus any estimated prepayments and charge offs. For the commercial real estate segment, the collective ACL is calculated by modeling PD over future periods based on peer bank data. The PD loss rate is then multiplied by historical LGD multiplied by contractual exposure at default minus any estimated prepayments and charge offs. Primary risk drivers are segment specific and include macro-economic variables and risk ratings of the individual loans within the commercial and industrial and commercial real estate loan segments. After the reasonable and supportable forecast periods, the Company reverts to historical loss experience for each portfolio using a cliff or straight-line reversion method. A portion of the collective ACL is comprised of qualitative factors which represent adjustments to historical loss experience.

We identified the assessment of the collective ACL as a critical audit matter. A high degree of audit effort, including specialized skills and knowledge, and subjective and complex auditor judgment was involved in the assessment of the collective ACL. Specifically, the assessment encompassed the evaluation of the collective ACL methodology, including the methods and models used to estimate (1) the PD and LGD and historical loss rates and their significant assumptions, including average prepayment rates, the economic forecast scenario, macro-economic variables, the reasonable and supportable forecast periods, lengths of time and methods of reversion, and risk ratings, and (2) the qualitative factors and their significant assumptions. The assessment also included an evaluation of the conceptual soundness and performance of the PD and LGD and historical loss rate