E-wallet is a cutting-edge payment method that fosters cashless transactions and supports the expansion of the digital economy. Hanoi plans to become a digital city and achieve 50% of electrical payments by 2025. Understanding the intention to use e-wallets is crucial for promoting e-payment. This paper explores a hybrid theory of behaviour, including the Technology Acceptance Model (TAM), the Unified Theory of Acceptance and Use of Technology (UTAUT), and the Theory of Planned Behaviour (TPB) to examine the factors influencing undergraduate students’ intention to use e-wallets. Using survey data on 363 students from 12 higher education institutions in Hanoi and the Partial Least Square Structural Equation Model (PLS-SEM) technique, the research findings indicate eight factors influencing students’ behavioural intention toward e-wallets in Hanoi: attitude, cost of e-payment, facilitating conditions, service quality, credibility, ease of use, usefulness, and social influence. Due to its multitude of factors, the proposed model offers high explanatory power. The results suggest implications to help Hanoi boost e-payment and digital transformation.