Abstract: An improved debiting method for inductive prepayment cards is provided in which a credit card cell set is divided into sectors for collection purposes, all credits collected from a given sector are collected before the next sector is collected from, the sectors are accessed in a standard order valid for all cards, each sector is made up of a column of cells parallel to a longitudinal axis of the card, and the credit cells are always accessed from the card's internal transverse edge toward the external transverse edge, independently of the orientation in which the card has been inserted in a read/write head.