One of the most important structural questions in factoring is who bears the credit risk — the risk that the customer simply does not pay the invoice. The answer determines whether the arrangement is "recourse" or "non-recourse."
Recourse factoring is the dominant structure in the US commercial market. In a recourse arrangement, if the business's customer does not pay the invoice — because the customer went bankrupt, became insolvent, or otherwise failed to pay — the business (the seller of the invoices) is required to buy back those invoices or replace them with other eligible invoices. The factor advanced real money against those invoices and expects to be made whole; the credit risk stays with the business.
Most recourse factoring arrangements have a "charge-back period" — typically 90 days from invoice date. If the invoice is not paid within that period, the factor charges it back to the business. This means the business needs to monitor its customer payment performance and address slow-paying customers quickly.
Non-recourse factoring shifts the credit risk to the factor. If the customer does not pay because of its own financial failure (insolvency, bankruptcy), the factor absorbs the loss and does not charge it back to the business. Non-recourse factoring is more expensive — the factor is assuming more risk and prices accordingly. It is also more limited: non-recourse protection typically covers only credit risk (the customer's inability to pay), not disputes, chargebacks, or situations where the customer disputes the validity of the invoice. If your customer disputes whether you delivered the goods correctly, that dispute is almost always charged back regardless of whether the arrangement is recourse or non-recourse.
For referral purposes: most clients who ask about non-recourse factoring are concerned about customer credit risk. In practice, for businesses with large, creditworthy customers (Fortune 500, government), the risk of customer insolvency is low enough that recourse factoring at lower rates usually makes more sense than non-recourse at higher rates.