PurposeCustomer loyalty is of growing interest to many service firms due to the many tangible and intangible benefits it offers them. However, building customer loyalty is challenging for many service firms. This study aims to examine the impact of corporate reputation on customer loyalty. It also assesses the moderating role of the firm's country of origin in this relationship.Design/methodology/approachSurvey research design was used to collect data from 367 universal banks' customers. Data were analysed using structural equation modelling.FindingsThe findings shed light on several crucial aspects of corporate reputation that influence customer loyalty. Specifically, signals of corporate social responsibility, corporate credibility, product attributes and relationship marketing were found to have a substantial impact on customer loyalty. Additionally, the study uncovers a noteworthy insight that the firm's country of origin plays a moderating role in the relationship between corporate reputation and customer loyalty, particularly in the context of the banking sector.Originality/valueThis research stands out due to its utilisation of signalling theory, making it one of the pioneering works in the bank brand management literature. It presents a comprehensive corporate reputation framework and its profound implications for customer loyalty. Furthermore, the study underscores the significance of considering the strength of the country-of-origin effect in shaping customer loyalty relationships.