Stage Allocation Discipline
Design significant increase in credit risk logic that is proportionate, explainable, and robust enough for management challenge and reviewer scrutiny.

Why stage discipline is a pillar
Stage allocation sits at the center of the ECL narrative because it determines when loss horizon expands and when management attention intensifies. If stage movement is unstable, opaque, or overly dependent on undocumented overrides, the final allowance becomes difficult to defend even if the underlying model is technically sound.
Build a stage framework that can be followed
Good stage design combines quantitative deterioration indicators with qualitative triggers, backstops, rebuttable presumptions, restructuring logic, and cure principles. The important test is not how many rules exist. It is whether an informed reviewer can understand why a borrower moved, why a borrower did not move, and what evidence supported the conclusion.
Keep overrides disciplined and visible
Override culture becomes dangerous when it replaces the framework instead of supporting it. Exceptional facts do occur, but they should be handled through clear approval and evidence rules. That keeps management judgement visible without making stage migration arbitrary.
Cure should be part of the architecture
Stage discipline includes the path back as well as the path down. Cure treatment should reflect sustained improvement, not merely temporary relief. A framework that pushes exposures up aggressively but returns them too quickly will lose credibility over time.
What this pillar should achieve
A strong outcome is a readable stage framework that supports challenge rather than fear of challenge. Management, risk, finance, and reviewers should be able to work from the same logic without improvising the narrative each quarter.
Stage allocation sits at the center of the ECL narrative because it determines when loss horizon expands and when management attention intensifies. If stage movement is unstable, opaque, or overly dependent on undocumented overrides, the final allowance becomes difficult to defend even if the underlying model is technically sound.
