Abstract: In general, techniques are described for facilitating fine-grained charging control for multi-service subscriber sessions by configuring charging control actions for application to services at the rating group level. For example, a mobile network gateway includes configuration information that defines a plurality of rating groups for a subscriber session, wherein each of the plurality of rating groups is associated with at least one service, and wherein the configuration information defines an actionable event and a corresponding charging control action for a rating group of the plurality of rating groups. A subscriber management module establishes a bearer of the mobile network for the subscriber session and associates the plurality of rating groups with the bearer. A charging client determines the occurrence of the actionable event defined by the configuration information for the rating group and applies the corresponding charging control action for the actionable event to the rating group.