Invoice factoring is a financial transaction in which a business sells its accounts receivable — outstanding invoices — to a third party called a factor. The sale is at a discount: the factor pays the business less than the face value of the invoices, advancing the majority of the invoice value upfront and remitting the remainder (minus fees) after the customer pays.
The defining characteristic of factoring — compared to other forms of receivables financing — is that it involves an actual sale of the invoices. The factor takes ownership of the receivables and assumes responsibility for collecting payment from the business's customers. In a conventional factoring arrangement, customers are notified that payment should be directed to the factor, and the factor manages the collection process directly.
This has an important operational implication: the business's customers will know the business is factoring its invoices. The factor contacts them, sends statements, and collects payment. For some businesses, this is not a concern — factoring is commonplace in their industry and customers understand it. For others — particularly professional services businesses where the client relationship is sensitive — customer notification may be undesirable. In those cases, confidential or non-notification factoring arrangements exist, though they typically come with additional requirements and costs.
Factoring is specifically a B2B product. The invoices must represent genuine commercial receivables — money owed by business customers (or government entities) for goods or services already delivered. Consumer receivables do not qualify. A manufacturer's invoices to a retailer qualify; a retailer's charge slips from consumer customers do not.
The economic driver for factoring is straightforward: businesses that deliver goods or services on credit terms are effectively lending money to their customers for the duration of the payment terms. A staffing company that places 50 workers this week but does not get paid for 45 days is financing $150,000 in delivered labor value while its own payroll is due each Friday. Factoring converts that receivable into present cash, solving the structural cash flow problem that extended payment terms create.