Receivables advance is the operation in which the seller exchanges an amount they would only receive in the future, such as an installment sale or the standard D+3 withdrawal, for money available immediately. In exchange for the early liquidity, the financial institution charges a discount rate, a percentage deducted from the advanced amount.

It makes sense when the cost of the discount rate is lower than the cost of not having cash available to invest in ads or operations in the present moment.