The study Investigates empirically the Impact of technological development on deposit money banks’ performance in Nigeria using annual lime series covering a period of 13 years, which is between 2009 Ql and 2021 Q4. To accomplish this objective, descriptive statistics, the unit root test, and Toda- Yamamoto modelling techniques were adopted for the analysis. The study shows that the number of points of sale does not affect deposit money banks' performance; and the number of mobile payments does not affect deposit money banks’ performance in Nigeria, but the number of automated teller machines enhances deposit money banks Performance. The study therefore concludes that technological development enhanced deposit money banks’ performance in Nigeria within the period of study. The study recommends that efforts be made to improve the efficiency of ATM service delivery in the country. There is a need to always fund the machines to ease transactions and prevent the risk of customers carrying cash over long distances to banks.