How does the IFRS 9 expected credit loss model work for impairment of financial instruments?

The IFRS 9 expected credit loss (ECL) model replaces the old incurred loss model with a forward-looking approach. Instead of waiting for evidence of actual default, companies must estimate and provision for credit losses from the moment a financial asset is recognized.

Three-Stage Model

Stage 1 -- Performing (Initial Recognition)

• Credit risk has not significantly increased since origination.
• Loss allowance = 12-month ECL (expected losses from defaults in the next 12 months).
• Interest revenue is calculated on the gross carrying amount.

Stage 2 -- Significant Increase in Credit Risk

• Credit risk has increased significantly but the asset is not yet credit-impaired.
• Loss allowance = Lifetime ECL (expected losses over the remaining life of the instrument).
• Interest revenue still calculated on the gross carrying amount.

Stage 3 -- Credit-Impaired

• Objective evidence of impairment exists (missed payments, bankruptcy, restructuring).
• Loss allowance = Lifetime ECL.
• Interest revenue calculated on the net carrying amount (gross minus loss allowance), reducing recognized interest income.

Example: Meridian Bank originates a $5,000,000 commercial loan to Weston Manufacturing at 6%.

Year 1 (Stage 1): Weston is performing well. The 12-month probability of default (PD) is 1.5%, loss given default (LGD) is 40%, exposure at default (EAD) is $5M.

• 12-month ECL = 1.5% x 40% x $5,000,000 = $30,000
• Meridian records a $30,000 loss allowance.

Year 2 (Stage 2): Weston loses a major contract and its credit rating drops. Credit risk has significantly increased. Lifetime PD is now 12%, LGD remains 40%.

• Lifetime ECL = 12% x 40% x $5,000,000 = $240,000
• Additional provision = $240,000 - $30,000 = $210,000 expense.

Year 3 (Stage 3): Weston misses two consecutive payments. The loan is credit-impaired. Lifetime PD rises to 45%.

• Lifetime ECL = 45% x 40% x $5,000,000 = $900,000
• Additional provision = $900,000 - $240,000 = $660,000 expense.
• Interest is now calculated on $5,000,000 - $900,000 = $4,100,000.

Key Differences from Old Model

The old IAS 39 incurred loss model only required provisions when a loss event had already occurred. IFRS 9 forces earlier recognition, which better reflects economic reality but can cause earnings volatility, especially when assets move between stages.

Exam Tip: Focus on what triggers a stage change (significant increase in credit risk, not just default) and the difference between 12-month and lifetime ECL. Also remember that Stage 3 changes the interest calculation base from gross to net.

For more IFRS 9 practice, check our CFA Level I question bank.