In Outremer and the Iberian peninsula the Templars provided military services, but in England, France and Italy their primary contribution was financial. Individual monasteries had traditionally served as secure depositories for precious documents and objects, but during an age of greater movement owing to the Crusades and the growth of trade and pilgrimages the Templar network in the West of preceptories, that is houses and estates, could offer a better service. The Templars developed a system of credit notes whereby money deposited in one Templar preceptory could be withdrawn at another upon production of the note, a procedure that required the meticulous and scrupulously honest recordkeeping at which they excelled.
Whether at Paris or Acre or elsewhere, the Templars kept daily records of transactions, giving details of the name of the depositor, the name of the cashier on duty, the date and nature of the transaction, the amount involved and into whose account the credit was to be made. These daily records were then transferred to a larger register, part of a vast and permanent archive. The Templars also issued statements several times a year, giving details of credits and debits and stating the origin and destination of each item.
With their branch offices, so to speak, at both ends of the Mediterranean, and with major strongholds at the Paris and London Temples, not only could they take deposits but they could also make funds internationally available where and when they were needed.