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ECL — Ind AS 109 Calculator.

Expected Credit Loss provisioning using the simplified approach for trade receivables — provision matrix by aging bucket with a forward-looking adjustment. Fast first pass before the full three-stage model for financial assets.

Provision Matrix
Ageing bucketBalance (₹)Historical loss rate (%)Base ECLAfter fwd-looking adj.
Current (0-30 days)₹25,000₹27,500
31-60 days₹30,000₹33,000
61-90 days₹40,000₹44,000
91-180 days₹90,000₹99,000
181-365 days₹1,60,000₹1,76,000
Above 365 days₹1,87,500₹2,06,250
Total₹85,50,000₹5,32,500₹5,85,750
Forward-looking
Adjustment for current macro outlook (% on base ECL): 10%
Ind AS 109 requires forward-looking information — adjust historical loss rates upward in a downturn, downward in expansion. Should be supportable by macro indicators (GDP, sector NPA trends, inflation).
Result
Total exposure₹85,50,000
Base ECL (matrix)₹5,32,500
Forward-looking adjusted ECL₹5,85,750
Effective ECL %6.85%

ECL — simplified vs general approach.

Ind AS 109 has two ECL approaches: the general three-stage approach (Stage 1 = 12-month ECL, Stage 2 = lifetime ECL post-significant-increase-in-credit-risk, Stage 3 = lifetime ECL post-credit- impaired) used by banks and NBFCs; and the simplified approach (lifetime ECL via provision matrix) available for trade receivables, contract assets and lease receivables — most corporates use this.

This calculator does the simplified approach. For NBFC / bank general-approach work, you’ll need a stage-classification model (PD, LGD, EAD) that’s out of scope for a quick web tool — but the forward-looking adjustment principle here applies the same way.

On CORAA
Trade receivables ageing + provisioning audit lives in Working Papers — AR Ageing. Pair with the Trade Receivables WP template.
Trade Receivables templateMore calculators

How ECL works under Ind AS 109

Ind AS 109 — "Financial Instruments" — introduced the Expected Credit Loss (ECL) model for impairment of financial assets, replacing the incurred-loss model of Ind AS 39. The ECL model is forward-looking: at every reporting date, an entity recognises a loss allowance equal to either 12-month ECL or lifetime ECL depending on whether credit risk has significantly increased since initial recognition.

The three-stage general model: Stage 1 (performing) — 12-month ECL, interest revenue on gross carrying amount. Stage 2 (significant increase in credit risk but not credit-impaired) — lifetime ECL, interest on gross. Stage 3 (credit-impaired) — lifetime ECL, interest on net carrying amount (gross minus loss allowance). Movement between stages is based on changes in credit risk, not just past-due status.

For trade receivables, contract assets, and lease receivables — Ind AS 109 provides a simplified approach: lifetime ECL from initial recognition, no stage assessment required. A "provision matrix" (ageing-bucket-based loss rates calibrated to historical data and adjusted for forward-looking information) is the most commonly used technique. RBI's IRACP norms for banks and NBFCs are NOT a substitute for Ind AS 109 ECL — they are minimum regulatory requirements.

Worked example — trade receivables provision matrix

A company has trade receivables of ₹50 cr. Ageing analysis shows the following buckets and historical loss rates (adjusted for forward-looking information).

Inputs
Not yet due (₹30 Cr)Loss rate 0.5%
0-30 days past due (₹10 Cr)Loss rate 2%
31-60 days (₹5 Cr)Loss rate 8%
61-90 days (₹3 Cr)Loss rate 15%
>90 days (₹2 Cr)Loss rate 50%
Output
ECL on not-yet-due₹15 L
ECL on 0-30 days₹20 L
ECL on 31-60 days₹40 L
ECL on 61-90 days₹45 L
ECL on >90 days₹1 Cr
Total ECL allowance₹2.20 Cr
The provision matrix delivers an aggregate ECL of ₹2.20 Cr on ₹50 cr of receivables (4.4% weighted average). This is recognised on the balance sheet net against receivables, with the charge in P&L under "Impairment loss on financial assets". The forward-looking adjustment (e.g., +50bps on each bucket for expected economic deterioration) is documented in the working papers.

Common mistakes

Using only historical loss data
Ind AS 109 requires forward-looking information — macroeconomic forecasts, industry trends, customer-specific information about future ability to pay. Pure historical loss rates without forward-looking adjustment understate ECL in deteriorating economic conditions and overstate in improving ones.
Confusing IRACP and ECL
IRACP norms (RBI Master Direction) prescribe minimum regulatory provisioning for banks and NBFCs. ECL under Ind AS 109 is the accounting standard. For RBI-regulated entities, both must be computed; the financial statements report ECL, while regulatory ratios use IRACP. Some entities incorrectly use IRACP as ECL — these are different concepts.
Not recognising ECL on intercompany loans
ECL applies to ALL financial assets measured at amortised cost or FVOCI — including intercompany loans, related-party advances, security deposits, employee advances. Many groups overlook ECL on these "low-risk" items, but Ind AS 109 has no exemption for intra-group exposures.
Stage transfer based on past-due status only
A 30-day past-due trigger is a rebuttable presumption (Ind AS 109 para 5.5.11) for significant increase in credit risk — not the only criterion. Quantitative criteria (PD doubling, internal rating downgrade) and qualitative criteria (covenant breach, restructuring discussion) also trigger Stage 2.
Not testing the provision matrix for staleness
The historical loss rates feeding the provision matrix must be calibrated periodically. If the economy or the customer mix has changed, old loss rates become unreliable. Auditors under SA 540 must evaluate the data quality and the period over which historical losses were observed.

Frequently asked questions

What is Expected Credit Loss (ECL)?+
ECL is the probability-weighted estimate of credit losses over the expected life of a financial instrument. It is computed as the difference between cash flows due to the entity in accordance with the contract and the cash flows that the entity expects to receive, discounted at the original effective interest rate.
What is the difference between 12-month ECL and lifetime ECL?+
12-month ECL — losses expected from default events that are possible within 12 months after the reporting date (Stage 1). Lifetime ECL — losses expected from all default events over the remaining life of the financial instrument (Stage 2 and 3, and simplified approach).
When does credit risk significantly increase?+
Ind AS 109 para 5.5.9 — when there has been a significant increase in the risk of a default occurring since initial recognition. Quantitative indicators: significant deterioration in external credit rating, increase in lifetime PD. Qualitative: significant change in credit terms, expected covenant breach, restructuring discussion. Rebuttable presumption: more than 30 days past due.
What is the simplified approach for trade receivables?+
For trade receivables that do not contain a significant financing component (most receivables under Ind AS 115), and for contract assets and lease receivables (with accounting policy choice), the entity is REQUIRED to use a simplified approach — measure the loss allowance at an amount equal to lifetime ECL from initial recognition. No stage assessment needed.
What is a provision matrix?+
A practical expedient for measuring ECL on trade receivables under the simplified approach — segregate the portfolio into groupings (typically by ageing bucket and customer segment), apply historical loss rates calibrated for forward-looking macroeconomic information. Ind AS 109 illustrative example 12 demonstrates the methodology.
How does ECL apply to intercompany loans?+
Ind AS 109 applies to ALL financial assets measured at amortised cost or FVOCI — including intercompany loans in standalone financial statements. The credit risk of the borrower entity must be assessed even within a group; "implicit parent support" is not automatic and must be evaluated based on the parent's ability and willingness.
What is the auditor's role under SA 540?+
ECL is an accounting estimate involving significant judgement. SA 540 (Auditing Accounting Estimates) requires the auditor to: (a) evaluate the entity's data, assumptions, and methodology; (b) develop a point estimate or range to compare; (c) test management bias; (d) assess the adequacy of disclosure under Ind AS 107 (Financial Instruments: Disclosures).
How does ECL differ from the old incurred-loss model?+
Incurred-loss model (Ind AS 39 / AS 30) required a "trigger event" — objective evidence of impairment — before any loss allowance. ECL is forward-looking and requires a loss allowance from Day 1 of recognition, even before any default event has occurred. The change brought significant earlier loss recognition into financial statements.

Authoritative sources

Ind AS 109 — Financial InstrumentsEffective from FY 2018-19. For banks and NBFCs, read alongside RBI Master Direction on IRACP (Income Recognition, Asset Classification, and Provisioning).
Always confirm against the latest version of the source. Regulations evolve and amendments are common.
Related calculators
Ind AS 115 RevenueDeferred Tax CalculatorNBFC audit guideBank branch audit guide
Last reviewed: 2026-05-28 · For informational purposes only — not professional advice.