Loan Loss Provision
An expense set aside as an allowance for bad loans (customer defaults, or terms of a loan have to be renegotiated, etc).
Investopedia Commentary
This would be a bank's equivalent of a manufacturing company's allowance for returns on goods sold.
Also know as a valuation allowance or valuation reserve.
See also: Creditor, Loan, Loan Sharking, Loan Syndication