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Corporate Financial Reporting · Accounting of Financial Instruments

Expected Credit Loss Model under Ind AS 109

Updated 11 October 2026 · Fact-checked

The expected credit loss (ECL) model requires you to provide for credit losses before they happen. Under the general approach, use 12-month ECL at stage 1 and lifetime ECL once credit risk rises significantly or the asset is credit-impaired. For trade receivables, use the simplified approach: lifetime ECL, often through a provision matrix.

Understand Impairment of Financial Assets (ECL Model)

Older rules waited for a loss event before a provision was made. Ind AS 109 changes this. You recognise a loss allowance from day one, based on losses you expect, using reasonable and supportable information that includes forward-looking information.

The objective, in the words of the standard, is to recognise lifetime expected credit losses for all financial instruments for which there have been significant increases in credit risk since initial recognition, whether assessed on an individual or collective basis. Until that happens, the allowance is smaller.

The general approach is usually described in three stages:

  • Stage 1: credit risk has not increased significantly since initial recognition. Loss allowance = 12-month ECL.
  • Stage 2: credit risk has increased significantly but the asset is not credit-impaired. Loss allowance = lifetime ECL.
  • Stage 3: the asset is credit-impaired at the reporting date. Loss allowance = lifetime ECL.

The stage names are a study aid. The standard speaks of 12-month and lifetime ECL. If credit risk improves so that the lifetime condition is no longer met, the allowance goes back to 12-month ECL (para 5.5.7). One difference between stages: interest revenue is on the gross carrying amount in stages 1 and 2, but on the amortised cost (net of allowance) in stage 3. This comes from the interest-revenue rules and the effective interest method, not from the paragraphs quoted here.

Trade receivables, contract assets and lease receivables get a shortcut. Under para 5.5.15, the entity always measures the allowance at lifetime ECL for trade receivables or contract assets under Ind AS 115 that have no significant financing component (or where the practical expedient is used). Where there is a significant financing component, lifetime ECL applies if the entity chooses that as its accounting policy. For lease receivables under Ind AS 116, lifetime ECL applies if the entity chooses that policy. No stage tracking is needed. Policy choices for trade receivables, lease receivables and contract assets can be made independently (para 5.5.16).

A provision matrix is a practical expedient (para B5.5.35). You apply fixed loss rates to receivables grouped by days past due, using historical loss experience adjusted for current conditions and forward-looking information. You may group by region, product type, customer rating, collateral or credit insurance, and customer type. Any change in lifetime ECL at the reporting date goes to profit or loss as an impairment gain or loss.

Key rules to remember

Expected credit loss (single exposure)
ECL = Exposure at default × Probability of default × Loss given default
A common working form. Discount to the reporting date at the effective interest rate if cash-flow timing is given. For 12-month ECL use the probability of default within 12 months; for lifetime ECL use the probability over the remaining life.
Cash-shortfall form of ECL
ECL = Σ (probability of each scenario × PV of cash shortfall in that scenario)
ECL is a probability-weighted amount. Cash shortfall = contractual cash flows − cash flows expected to be received.
Provision matrix
Loss allowance = Σ (gross receivables in each ageing bucket × loss rate for that bucket)
Para B5.5.35 allows this as a practical expedient. Rates come from historical experience, adjusted for current and forward-looking information.
Stage rule (general approach)
Stage 1: 12-month ECL | Stage 2 and Stage 3: lifetime ECL
Stage 2 is triggered by a significant increase in credit risk since initial recognition. Stage 3 means credit-impaired.
Simplified approach rule
Trade receivables/contract assets without significant financing component: always lifetime ECL (para 5.5.15)
With a significant financing component, and for lease receivables, lifetime ECL applies if the entity chooses it as an accounting policy.
Income statement effect
Impairment loss/gain = Closing loss allowance − Opening loss allowance (before write-offs)
The change is recognised in profit or loss at each reporting date as an impairment gain or loss. Para 5.5.14 states this specifically for purchased or originated credit-impaired assets, where even favourable changes in lifetime ECL are recognised as an impairment gain. Allowance is a deduction from gross carrying amount for assets at amortised cost.

How to solve Impairment of Financial Assets (ECL Model) questions

Use this order for any ECL question, whether it is a loan, a bond or a receivable.

  1. 1Identify the asset: trade receivable, contract asset, lease receivable, or another debt instrument such as a loan or bond.
  2. 2Decide the approach. Trade receivables without a significant financing component: simplified approach, lifetime ECL. Others: general approach.
  3. 3For the general approach, fix the stage from the facts: no significant rise in credit risk (stage 1), significant rise (stage 2), or credit-impaired (stage 3).
  4. 4Pick the ECL horizon: 12 months for stage 1, remaining life for stages 2 and 3.
  5. 5Compute the loss: either exposure × probability of default × loss given default, or ageing bucket × matrix rate. Discount if timing is given.
  6. 6Compare with the existing allowance and record the difference in profit or loss as an impairment loss or gain.
  7. 7Show the journal entry and the net carrying amount, and state the stage or approach in one line so marks for reasoning are not lost.

Quickest way: Matrix-first shortcut for receivables

When to use it: Use when the question gives an ageing table with loss rates, or asks for the year-end provision on trade receivables.

  1. Write each bucket and multiply by its rate in one column.
  2. Add the column to get the required allowance.
  3. Subtract the opening allowance (and adjust for write-offs and recoveries if given) to get the charge for the year.
  4. If a specific customer is credit-impaired or has a known loss, take it out of the matrix and assess it separately.
  5. Write one line quoting the simplified approach and lifetime ECL.

Common mistakes in Impairment of Financial Assets (ECL Model)

  • Applying 12-month ECL to trade receivables without a significant financing component.

    Students remember the three stages and forget that receivables bypass them.

    Fix: For these receivables, para 5.5.15 requires lifetime ECL always. Do not assign stages.

  • Treating the provision matrix as a mandatory method.

    Matrix questions are common, so it looks compulsory.

    Fix: It is a practical expedient allowed if consistent with the ECL principles. Say it is a permitted expedient.

  • Using historical loss rates without any adjustment.

    The question gives rates and students just multiply.

    Fix: State that rates are adjusted for current conditions and forward-looking information. If the question gives an adjustment, apply it.

  • Booking the whole closing allowance as the year's expense.

    Opening balance is ignored.

    Fix: The charge is closing allowance minus opening allowance, adjusted for write-offs. Compute the movement.

  • Applying the probability of default to the wrong base or forgetting loss given default.

    Students treat probability of default as the loss rate.

    Fix: Multiply by exposure, probability of default and loss given default, unless the question gives a combined loss rate.

  • Staying at lifetime ECL when credit risk has improved.

    Students think stage movement only goes one way.

    Fix: Under para 5.5.7, if the lifetime condition is no longer met, revert to 12-month ECL.

Worked examples

Example 1

Shreya Textiles Ltd has trade receivables of ₹80,00,000 at year-end, with no significant financing component. Ageing and loss rates from its provision matrix: Not past due ₹50,00,000 at 1%; 1-30 days past due ₹18,00,000 at 3%; 31-90 days ₹8,00,000 at 10%; over 90 days ₹4,00,000 at 25%. The opening loss allowance was ₹1,10,000. Compute the loss allowance and the impairment loss for the year (ignore write-offs).

Show the solution
  1. Approach: trade receivables without a significant financing component, so the simplified approach applies and the allowance is lifetime ECL (para 5.5.15). A provision matrix is a permitted practical expedient (para B5.5.35).
  2. Not past due: ₹50,00,000 × 1% = ₹50,000.
  3. 1-30 days: ₹18,00,000 × 3% = ₹54,000.
  4. 31-90 days: ₹8,00,000 × 10% = ₹80,000.
  5. Over 90 days: ₹4,00,000 × 25% = ₹1,00,000.
  6. Check total receivables: 50,00,000 + 18,00,000 + 8,00,000 + 4,00,000 = ₹80,00,000.
  7. Closing allowance = 50,000 + 54,000 + 80,000 + 1,00,000 = ₹2,84,000.
  8. Impairment loss for the year = 2,84,000 − 1,10,000 = ₹1,74,000, recognised in profit or loss.
  9. Entry: Impairment loss on trade receivables A/c Dr ₹1,74,000 to Loss allowance A/c ₹1,74,000. Net receivables = 80,00,000 − 2,84,000 = ₹77,16,000.

Answer: Closing loss allowance ₹2,84,000; impairment loss in profit or loss ₹1,74,000; net receivables ₹77,16,000.

Example 2

Bharat Finance Ltd holds a bond with gross carrying amount ₹1,00,00,000, classified at amortised cost. At the reporting date, credit risk has increased significantly since initial recognition but the bond is not credit-impaired. Estimated probability of default: 2% over the next 12 months and 10% over the remaining life. Expected loss given default is 40% in both cases. Ignore discounting. Which ECL is recognised and what is the amount? If instead credit risk had not increased significantly, what would the amount be?

Show the solution
  1. Under the general approach, a significant increase in credit risk without credit impairment is stage 2, so lifetime ECL applies.
  2. Lifetime ECL = 1,00,00,000 × 10% × 40% = ₹4,00,000.
  3. If there had been no significant increase in credit risk (stage 1), 12-month ECL would apply.
  4. 12-month ECL = 1,00,00,000 × 2% × 40% = ₹80,000.
  5. Interest revenue in stage 2 continues on the gross carrying amount of ₹1,00,00,000, as the asset is not credit-impaired.
  6. Net carrying amount in stage 2 = 1,00,00,000 − 4,00,000 = ₹96,00,000.

Answer: Stage 2: lifetime ECL of ₹4,00,000 (net carrying amount ₹96,00,000). Had it been stage 1, 12-month ECL would be ₹80,000.

Exam tips

  • In MCQs, the usual traps are 12-month versus lifetime ECL and which approach applies to trade receivables. Link receivables to lifetime ECL and the simplified approach.
  • In written answers, name the approach and quote para 5.5.15 or B5.5.35 where you are sure. A one-line reason earns marks even if arithmetic slips.
  • Show the matrix as a small table in your working: bucket, amount, rate, loss. Add and check the total against gross receivables.
  • Always compute the movement against opening allowance. Questions often give an opening balance or a write-off.
  • Disclosure questions may ask what Ind AS 107 requires: reconciliation of loss allowance (para 35H), credit risk grades (para 35M), and that a provision matrix may be the basis for trade receivable disclosures (para 35N).

Practice questions from Accounting of Financial Instruments

Impairment of Financial Assets (ECL Model) in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Impairment of Financial Assets (ECL Model): frequently asked questions

What is the difference between 12-month ECL and lifetime ECL?

12-month ECL is the part of lifetime ECL from defaults possible within 12 months after the reporting date. Lifetime ECL covers defaults over the whole expected life of the instrument. The general approach uses 12-month ECL until credit risk rises significantly.

Do I need to use the three stages for trade receivables?

No. For trade receivables or contract assets without a significant financing component, Ind AS 109 para 5.5.15 requires the allowance at lifetime ECL always. With a significant financing component, lifetime ECL applies if the entity chooses it as policy.

Is a provision matrix compulsory?

No. Para B5.5.35 describes it as an example of a practical expedient. The entity uses its historical credit loss experience, adjusted as appropriate, and may group receivables by criteria such as region, product type or customer type.

Can the loss allowance go back from lifetime to 12-month ECL?

Yes. Under para 5.5.7, if the entity measured lifetime ECL in the previous period but the condition for lifetime ECL is no longer met at the current reporting date, it measures 12-month ECL.