Purpose This study aims to investigate the adoption and use of electronic voting (e-voting) system as an option to credible elections in Nigeria, as well as the factors that could influence the readiness of Oyo state citizens in Nigeria to use the system. Design/methodology/approach The study adopts the survey research design, while the Technology Readiness Acceptance Model provides the theoretical framework. A two-stage sampling procedure (random and convenience) was used to select 500 Nigerian citizens, who are of voting age, while data were collected with a structured questionnaire. Findings Findings reveal that the citizens are ready to use the e-voting system if adopted by the Nigerian Government. Optimism and innovativeness are positively correlated, and perceived discomfort and perceived insecurity are negatively correlated, with readiness to use e-voting system by Oyo state citizens. The Technology Acceptance Model constructs (perceived usefulness and perceived ease of use), as well as computer self-efficacy also have positive correlations with readiness to use of e-voting. Research limitations/implications The population of the study was limited to only citizens in one state of the federation; hence, the results cannot be generalised to all citizens in Nigeria. Practical implications The study contributes to existing knowledge on adoption and use of technology and confirms that optimism and innovativeness are motivators and discomfort and insecurity are inhibitors of intention to use and actual usage of technology. Hence, these constructs should be taken into account and promoted when Nigeria is planning to adopt the e-voting system. Social implications This paper could assist the Nigerian Government on the factors to consider when implementing the e-voting system. Originality/value This paper is one of the first pieces of empirical research that attempted to investigate the factors that could promote acceptance and use of the e-voting system in Nigeria.