It's not a finance charge, factoring is as follows... Billing is used as collateral
A type of asset-financing arrangement in which a company uses its receivables - which is money owed by customers - as collateral in a financing agreement. The company receives an amount that is equal to a reduced value of the receivables pledged. The age of the receivables have a large effect on the amount a company will receive. The older the receivables, the less the company can expect. Also referred to as "factoring".