Expected loss (EL)
Expected loss (EL) is the average credit loss a lender expects on a loan or a book, calculated as probability of default (PD) × loss given default (LGD) × exposure at default (EAD). It is a cost of lending and is priced into the rate.
Example
For illustration, a loan has an EAD of 10,000, a PD of 2% and an LGD of 45%. Expected loss is 0.02 × 0.45 × 10,000 = 90. This is an average estimate, not a claim about the loss on that particular loan.
Calculating expected loss from a loan to a book
For each loan, the calculation uses its PD, LGD and EAD. Apply it to each loan in a segment, then add those estimates to get the segment total.
For a whole book, add the loan-level estimates or the segment totals. The result reflects the inputs supplied for the loans or segments.
Using expected loss in lending decisions
Expected loss is a cost of lending and is priced into the rate. The calculation itself does not specify a provision amount or a credit limit.
Unexpected loss is the variation around expected loss, and capital covers it. In a stress test, PD and LGD are raised to see how expected loss would move in a downturn.
Questions we get asked
Does expected loss tell you what will happen on a particular loan?
No. Expected loss is an average estimate, so the realized loss on an individual loan can differ.
Does expected loss specify the amount a lender should provision?
No. Expected loss is a measure, and the calculation itself does not specify a provision amount.
Does a higher LGD increase expected loss?
Yes, if PD and EAD stay the same. A higher LGD raises the calculated expected loss.
The free expected loss calculator calculates expected loss by segment and for a book, and shows how a PD and LGD stress changes the result.