This study presents an investigation on the role of innovation attributes that significantly influence the behavioural intention and actual adoption of potential consumers towards the interbank mobile payment service. Using attributes from Rogers’ diffusion of innovations theory, along with one other attribute, cost, the diffusion of this IMPS application has been studied. The proposed model was empirically tested against the data gathered from both, the adopters and non-adopters of this technology. The SPSS analysis tool was used to perform the reliability tests, and linear and logistic regressions. While relative advantage, compatibility, complexity and trialability displayed significant relationships, observability exhibited a poor impact on behavioural intention. On the other hand, behavioural intention and cost showed significant impacts on the adoption of the IMPS application. The theoretical background, discussions, key conclusions, and limitations, alongside research implications of this study have been presented.