Current Expected Credit Losses (CECL)

CECL is the credit loss model under ASC 326, and it replaced the incurred-loss approach that previously governed the allowance for doubtful accounts and loan loss reserves. Under the incurred-loss model, an entity waited for a loss to become probable before reserving. Under CECL, an entity recognizes an allowance for all expected credit losses over the entire contractual life of a financial asset at the moment that asset is originated or acquired — a day-one loss.

The scope is broader than most non-financial companies initially expect. It captures loans and held-to-maturity debt securities, but also trade accounts receivable, contract assets under ASC 606, net investments in leases, reinsurance receivables, and certain off-balance-sheet credit exposures such as financial guarantees and loan commitments. Available-for-sale debt securities remain under a separate, modified impairment model.

Measurement requires an estimate that considers historical loss experience, current conditions, and reasonable and supportable forecasts of future economic conditions, reverting to historical experience for periods beyond which forecasts can be supported. Assets with similar risk characteristics are pooled and measured collectively. Common approaches include vintage analysis, loss-rate methods, probability-of-default and loss-given-default modeling, and discounted cash flow.

For banks and credit unions the implementation was a major modeling exercise with capital implications. For commercial and industrial companies, the practical effect is more modest but still real: trade receivable reserves must now be forward-looking, supported by an aging-based or vintage-based model with documented qualitative overlays, and refreshed each reporting period rather than trued up annually.