David Hume in his Essay of the Balance of Trade, published in 1752, makes this nice point in favor of Cash Credits: "If a man borrows £5000 from a private hand, besides that it is not always to be found when required, he pays interest for it whether he be using it or not. On the other hand, his Cash Credit costs him nothing, except during the moment it is of service to him; and this circumstance is of equal advantage as if he had borrowed money at a much lower rate of interest." The Cash Credit is always for a limited sum, seldom under £100, given upon the customer's own security, and that in addition of two or three individuals approved by the bank, who become sureties for its payment. Of course, only those banks can furnish such credits which possess a surplus of credit more than they can sell in the ordinary way, and these credits are safe and useful only in small communities, in which men are well known to each other. Some friends of the parties thus accommodated always guarantee the bank against loss; but the losses have proved to be insignificant, the gains to be marvellous; and this form of credit issued on the basis of no previous transaction in the way of deposits illustrates better than any other the radical principle, that Credit is Capital.
The Report of a Committee of the House of Lords made in 1826 on Scotch and Irish banking describes very clearly and fully the system of Cash Credits: "There is also one part of their system, which is stated by all the witnesses to have had the best effects upon the people of Scotland, and particularly upon the middling and poorer classes of society, in producing and encouraging habits of frugality and industry. The practice referred to is that of Cash Credits. Any person who applies to a bank for a Cash Credit is called upon to produce two or more competent sureties, who are jointly bound; and after a full inquiry into the character of the applicant, the nature of his business, and the sufficiency of his securities, he is allowed to open a credit, and to draw upon the bank for the whole of its amount, or for such part of it as his daily transactions may require. To the credit of the account he pays in such sums as he may not have occasion to use, and interest is charged or credited upon the daily balance, as the case may be. From the facility which these Cash Credits give to all the small transactions of the country, and from the opportunities which they afford to persons who begin business with little or no capital but their character to employ profitably the minutest products of their industry, it cannot be doubted that the most important advantages are derived to the whole community. The advantage to the banks that give these Cash Credits arises from the call which they continually produce for the issue of their paper, and from the opportunity which they afford for the profitable employment of part of their deposits. The banks are indeed so sensible that, in order to make this part of their business advantageous and secure, it is necessary that their Cash Credits should be operated upon, that they refuse to continue them unless this implied condition be fulfilled. The total amount of their Cash Credits is stated by one witness to be £5,000,000, of which the average amount advanced by the banks may be one-third."