AASB 9 Expected Credit Loss Staging

Key takeaways

• AASB 9 is the Australian equivalent of IFRS 9 and replaced incurred-loss provisioning.
• The Stage 1 to Stage 2 move multiplies the provision without any default occurring.
• Provisions are forward-looking and depend on macroeconomic scenarios.
• Rising Stage 2 balances are an early-warning signal worth watching.

What changed from the old approach?

The previous incurred-loss model only allowed a provision once there was objective evidence of impairment. The criticism after the global financial crisis was that this was "too little, too late" - banks recognised losses long after the deterioration was visible.

AASB 9 replaced it with expected credit loss. A lender now provisions from the day the loan is written, based on what it expects to lose given current conditions and a forecast of future conditions.

That forward-looking requirement is the important structural change: provisions now depend on economic forecasts, which means they move when the outlook changes even if no borrower has missed a payment.

How do the three stages work?

The step from Stage 1 to Stage 2 is the one that moves the numbers. Nothing has defaulted, but the provision basis jumps from twelve months of expected loss to the loss expected over the entire remaining life of the loan - which on a 30-year mortgage is a very different figure.

What counts as a "significant increase in credit risk" is a matter of judgement within the standard, which is why two banks with similar books can report differently shaped provisions.

Why should a borrower or broker care?

Because provisions are a leading indicator of credit appetite. A lender watching Stage 2 balances rise will tighten policy before its arrears figures deteriorate, and that tightening reaches borrowers as changed serviceability assumptions, reduced appetite for particular segments, or slower approvals.

It also explains an apparent contradiction in bank reporting. A bank can post a large provision charge in a period when actual write-offs are low, because the charge reflects a worsened forecast rather than realised losses. Conversely, provisions can be released when the outlook improves, flattering profit without any cash arriving.

In an environment with elevated mortgage stress - 421,725 households across 80 postcodes as at June 2026 - Stage 2 migration is the number that tells you what lenders think happens next.

Frequently asked questions

What is AASB 9?

The Australian accounting standard for financial instruments, equivalent to the international standard IFRS 9. It introduced the expected credit loss model that requires lenders to provision for losses before they are incurred.

What is a significant increase in credit risk?

The trigger for moving a loan from Stage 1 to Stage 2, assessed relative to the credit risk at origination. Indicators include downgrades in internal risk grading, arrears, and forbearance. The standard allows judgement, so definitions vary between lenders.

Does a Stage 2 loan mean the borrower has missed a payment?

Not necessarily. Stage 2 reflects a significant increase in credit risk since the loan was written, which can be triggered by forward-looking indicators before any payment is missed. Many Stage 2 loans are fully up to date.

Why do bank provisions rise when defaults are low?

Because expected credit loss provisioning is forward-looking and depends on macroeconomic scenarios. A worse forecast increases provisions immediately, even though no additional loans have defaulted.

Related reading

• Expected Loss vs Unexpected Loss
• Mortgage Stress Hits 421,725 Households: Is Your Postcode on the List?
• PD, LGD and EAD: The Three Numbers That Price Your Loan

Sources

• AASB 9 Financial Instruments — Australian Accounting Standards Board
• Financial Stability Review — Reserve Bank of Australia