This study attempts to validate the extended theory of planned behaviour (TPB) model to study mobile money services adoption among Malaysian consumers. A total of 200 usable questionnaires were secured using a structured questionnaire. We used the second-generation analysis of partial least square (PLS) using SmartPLS to test the hypotheses developed for this study. The analysis showed that perceived ease of use, perceived risk and convenience are the major predictors of the attitude of mobile money service adoption. This empirical study adds value in validating the TPB model in a new setting. The managers of service providers may use this model to design and develop secure, convenient and easy-to-use mobile money services which can result in effective marketing strategies that would encourage consumers to use such services.