Roll Rate
The roll rate methodology involves the computation of the Default Roll Rate and the
Gross loss rate for an account based on the given Rating or Delinquent days band and its
maturity.
Note:
To compute the CECL through the roll rate methodology, it is required to execute the Segmentation, Historical Transition Matrix, and Historical Loss Rate runs. If the Transition Matrices are provided as a download, the Historical Transition Matrix Run can be ignored.The Current Expected Credit Loss of an account is computed as follows:
- Lifetime Allowance = Outstanding Amount * Lifetime DRR * Gross Loss Rate
- Lifetime Provision = Undrawn Amount * CCF * Lifetime DRR * Gross Loss Rate