IFRS 9 Expected Credit Loss Model (ECL) — Excel/VBA Pro

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IFRS 9 ECL Model — The Fast, Auditable, Ready Engine in Excel

Meet the last credit-impairment workbook you’ll ever need. This model turns plain portfolio data into fully-audited IFRS 9 results—clean staging, scenario-weighted ECLs, and disclosure tables—at the push of a button. It’s built for real-world finance teams that want speed, transparency, and zero black-box vibes.

Why buyers pick this model

One-click workflow. Build Model (set up tables + sample data), Run ECL (full engine), Refresh ECL (incremental). No manual fiddling.
True IFRS 9 logic. Stage allocation (SICR, backstops, low-risk) → PD/LGD/EAD cash-flow engine → discounting → scenario weighting. The whole chain is implemented and traceable.
PIT & TTC done right. Clean TTC→lifetime, PIT lifetime, monthly PD curve generation, and transitions—so your staging and lifetime math actually line up.
Disclosure-ready. Out-of-the-box IFRS 7/9 tables: loss-allowance movements, credit-quality bands, maturity buckets. Designed to export straight to reporting packs.
Auditable and reproducible. Inputs live in structured tables; outputs are written as values (not volatile formulas) for locked-in, repeatable results and easy versioning.
Performance-tuned. Vectorised array calculations, batched writes, and a slim UI footprint. Handles large portfolios without crawling.
Bulletproof structure. Everything sits in named tables (ListObjects) with headers you can understand. No hidden data jungles.

What’s inside (modules that matter)

M_BuildModel – orchestrates setup, formats, named ranges, and demo data (so you can test on day one).
M_Staging – SICR engine: relative & absolute lifetime tests, DPD backstops, low-risk, watchlist and cure logic.
M_ECLCalc – vectorised core: monthly PDs, LGD/EAD profiles, survival, discounting, scenario rolls, and engine-grid output.
M_Disclosures – loss-allowance movement, credit-quality analysis, maturity analysis—prebuilt, ready to publish.
M_Utils – rock-solid helpers (table management, safe value conversion, admin log, snapshots, and performance toggles).

Data in, results out

Inputs: Portfolio (exposures, ratings, dates, collateral), Ratings (PD_12m), PD curves, LGD/EAD parameters, Scenarios & weights, Assumptions.
Outputs: Staging by instrument, scenario ECLs & weighted ECL, engine grid (for trace/analytics), IFRS disclosures, snapshot for roll-forwards.

Built-in governance

Admin log tracks who ran what, when, and with which base scenario/version.
Snapshotting preserves prior-period ECLs for true movement analysis.
Deterministic refresh ensures the same inputs always produce the same outputs—exactly what audit wants.

Customize without breaking

Swap scenario names/weights, PD/LGD/EAD settings, staging thresholds, or portfolio columns—the engine reads tables, not hard-coded cells.
Add columns? The ListObject pattern and vector logic scale with you.

Who this is for

Banks and lenders needing a clean, auditable IFRS 9 engine in Excel.
Finance/credit teams who want transparency and speed without a heavy platform.
Consultants who need a robust, client-ready template they can extend.

Why this model wins deals

Clarity: Every number is traceable from assumption → cash-flow → disclosure.
Control: Outputs are values by design (fast, version-able, and review-able).
Confidence: The built-in audit and snapshotting make assurance work easy.
Time-to-value: Load your portfolio and run ECL the same day.

What you get

The complete IFRS 9 ECL Excel model (macro-enabled), fully wired.

Demo data generator to explore the flow instantly.
One-click Run ECL buttons and pre-styled dashboards/tables.
Clear table schema and parameterization so you can adapt it to your policies.

If you want an IFRS 9 solution that’s fast, transparent, auditable, and ready to work, this workbook is it. Plug in your portfolio, set your parameters, press Run ECL, and send the disclosures—no mystery, no mess.

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