A system and method for processing a transaction in connection with a loyalty rewards program comprising identifying at least one individual associated with said transaction, communicating associated information to a processing component that includes rules and logic associated with said loyalty rewards program, determining an eligible amount associated with said transaction for at least one promotion, determining at least one reward based on said eligible amount and said at least one promotion, and storing detailed, comprehensive, line item information associated with the transaction. Said system and method may further comprise determining an owed amount associated with at least one loyalty provider based on said rules and logic and charging said at least one loyalty provider for said owed amount. Such a system will facilitate marketing strategies, processing of returns, and management of cross-promotional arrangements, and will enable merchants to develop, implement, and manage complex loyalty rewards programs.