In many OECD-countries, payment services in banking have shifted from paper-based giro and check payments to electronic giro and debit card payments. This paper analyses the effect of this change in payment technology on banks’ scale properties and input demand within a multiple-output framework using Norwegian bank-level panel data. The dual approach with four variable inputs is applied, and the general model includes random coeffients to capture heterogeneity in the production technology across banks. The results show that electronic payments have increased the economies of scale in the production of deposits more than in the production of loans. Furthermore, the move towards electronic payment services has affected input demand asymmetric, i.e. non-neutral, and the input ratio between labour and both physical capital and materials have decreased.