Abstract: A computer-controlled identifier tag production system. The system employs perforated plastic sheets comprising a plurality of transparent identifier tags. The sheets are designed to be fed through a conventional ink jet or laser printer to print one or more of the tags in accordance with user input. Each sheet is a single layer in thickness and is sufficiently flexible and heat-stable such that it will not deform if passed through a printer multiple times. The printed tags are used in conjunction with a plastic holder and backer plate to form an adhesive-free identifier tag assembly. The backer plate is preferably a rigid metal plate which may be embossed with indicia, such as a corporate logo. The identifier tag assembly may further include a magnet or pin fastener for temporarily affixing the backer plate to an article of clothing.