Guidance on the appropriate accounting treatment of a credit card rewards programme (CCRP) transaction after the effective date of IFRS 15 is needed due to current uncertainty and inconsistencies. The objective of the research was to develop a theoretical model for the accounting treatment of CCRP transactions after the effective date of IFRS 15 by considering the relevant literature, including IFRS. This non-empirical qualitative literature study utilised document analysis and model building to construct the theoretical model. To provide practical guidelines in accounting for a CCRP transaction, a model embedded in a decision tree was developed as a heuristic to provide for various possible accounting treatments. It was found that a CCRP transaction can be accounted for in terms of IAS 37 Provisions, Contingent Liabilities and Contingent Assets (as an expense and provision), in terms of IFRS 9 Financial instruments (as an expense and financial liability), or in terms of IFRS 15 Revenue from contracts with customers (as a deferred revenue). The value of this article is that it provides answers in a clear and concise matter on a single page dealing with all the various elements of a CCRP transaction that impacts the accounting treatment. The CCRP theoretical model developed could eliminate uncertainty amongst CCRP management and increase the decision-usefulness of financial information.