Disclosure-Ready Evidence
Organise assumptions, movements, approvals, and commentary so another informed party can follow the ECL story from inputs to reported number.

Why evidence quality matters
A technically sound allowance becomes fragile if the supporting evidence is scattered, inconsistent, or reconstructed after the fact. Reviewers need to understand what changed, why it changed, where judgement entered, and which approvals were obtained. That is what turns an internally produced number into a defendable external narrative.
Evidence should make challenge easier, not harder
Good workpapers do not bury the logic. They surface it. They show the major movements, the assumptions behind them, the role of scenarios and overlays, and the sequence of review decisions. That allows management, auditors, and committees to challenge the result on substance instead of wasting time reconstructing the workflow.
Movement analysis is a core disclosure tool
Movement analysis helps connect period-on-period change to business reality. It explains how much of the allowance moved because of portfolio growth, deterioration, recoveries, parameter updates, macro conditions, overlays, or other specific factors. Without that bridge, the final note may be technically complete but conceptually thin.
Preserve approvals and rationale
Evidence is not only about spreadsheets and outputs. It also includes approval history, override rationale, data exception treatment, and the notes that explain why management accepted the final position. Those items are often decisive in review settings.
What this pillar should deliver
A good outcome is a traceable ECL story that another informed party can follow from raw inputs to the reported number. That is the standard ECL Square is built to support: clarity, traceability, and a workflow that leaves usable evidence behind.
A technically sound allowance becomes fragile if the supporting evidence is scattered, inconsistent, or reconstructed after the fact. Reviewers need to understand what changed, why it changed, where judgement entered, and which approvals were obtained. That is what turns an internally produced number into a defendable external narrative.
