The study attempts to explore the effects of key factors influencing the customer acceptance of mobile banking adoption, particularly those that affect the consumer's attitudes towards and intention to use. This study builds a comprehensive theoretical model explaining M-banking adoption in Bangladesh. To assist in identifying these factors, an empirical study was conducted among general citizens of Bangladesh to identify the acceptance of M-banking. The study revealed that the critical factors which contribute to the adoption of M-banking in Bangladesh. A consumer survey on 250 mobile bank users of different mobile network operators in Bangladesh was undertaken where respondents completed a questionnaire about their perceptions of mobile banking's usefulness, perceived ease of usefulness, perceived risk, perceived cost, and perceived trust. This study offers an insight into mobile banking in Bangladesh, focusing on influencing factors and perceived trust was found to be the most significant factor affecting the adoption of M-banking in Bangladesh.