Abstract: Tariffing of ATM network requires flexibility with respect to the introduction of new services and reliability of tariffing process that is fitted to the characteristics of diverse B-ISDN services. Tariffing method of ATM network is therefore a complex issue to resolve. In this paper, the efficient connection based tariffing method for ATM network is proposed, and several scenarios will explain the tariffing method. We will show the basic tariffing scenarios considering usage sensitive tariffing and point-to-multipoint connection tariffing, and extra tariffing scenarios for extemporal billing and reverse tariffing services. As the proposed connection based tariffing method has considerable flexibility and simplicity, it can be applied to any type of B-ISDN services easily.