What kills the spread: NPAs
What an NPA is: the 90-day rule that turns a loan bad
A loan turns NPA when interest or principal goes unpaid for more than 90 days.
Why it matters
NPAs are what destroy the spread your bank works to build. In lending or collections, knowing exactly when day 91 hits keeps you from being blindsided at quarter-end.
The picture
What it leads to
Once a loan turns NPA it slides down the asset-classification ladder and triggers provisioning that hits the P&L.
Where it sits in the map
Follow the causation