Factoring as a fact of business life was underway in England prior to 1400, and it came to America with the Pilgrims, around 1620. It appears to be closely related to early merchant banking activities. The latter however evolved by extension to non-trade related financing such as sovereign debt. Like all financial instruments, factoring evolved over centuries. This was driven by changes in the organization of companies; technology, particularly air travel and non-face-to-face communications technologies starting with the telegraph, followed by the telephone and then computers. These also drove and were driven by modifications of the common law framework in England and the United States.
Governments were latecomers to the facilitation of trade financed by factors. English common law originally held that unless the debtor was notified, the assignment between the seller of invoices and the factor was not valid. The Canadian Federal Government legislation governing the assignment of moneys owed by it still reflects this stance as does provincial government legislation modelled after it. As late as the current century, the courts have heard arguments that without notification of the debtor the assignment was not valid. In the United States, by 1949 the majority of state governments had adopted a rule that the debtor did not have to be notified, thus opening up the possibility of non-notification factoring arrangements.
Originally the industry took physical possession of the goods, provided cash advances to the producer, financed the credit extended to the buyer and insured the credit strength of the buyer. In England the control over the trade thus obtained resulted in an Act of Parliament in 1696 to mitigate the monopoly power of the factors. With the development of larger firms who built their own sales forces, distribution channels, and knowledge of the financial strength of their customers, the needs for factoring services were reshaped and the industry became more specialized.
By the twentieth century in the United States factoring was still the predominant form of financing working capital for the then-high-growth-rate textile industry. In part this occurred because of the structure of the US banking system with its myriad of small banks and consequent limitations on the amount that could be advanced prudently by any one of them to a firm. In Canada, with its national banks the limitations were far less restrictive and thus factoring did not develop as widely as in the US. Even then, factoring also became the dominant form of financing in the Canadian textile industry.
By the first decade of the 21st century, a basic public policy rationale for factoring remains that the product is well-suited to the demands of innovative, rapidly growing firms critical to economic growth. A second public policy rationale is allowing fundamentally good business to be spared the costly, time-consuming trials and tribulations of bankruptcy protection for suppliers, employees, and customers or to provide a source of funds during the process of restructuring the firm so that it can survive and grow.