Purpose: The purpose of this paper to fill the research gap of lack ofcross-country studies in Germany, Hungary and Sweden in thecontext of online and mobile payment adaption and usage. Research Questions: The authors of this study aim at answering the followingquestion: What are the main similarities and differences in onlineand mobile payment acceptance in Germany, Hungary andSweden in the age group of 18-35?Theoretical Framework:The theoretical framework presents prevalent theories aboutfactors which are connected to online and mobilepayment. In addition, the Technical Acceptance Model wasused as a base for the conceptual framework developed by theauthors.Methodology: This study includes both qualitative and quantitative primarydata. The conducted survey resulted in 1016 answers; out of these869 answers were eligible. In addition, 150 companies wereasked and 30 qualitative interviews (10 per each country) wereconducted.Analysis: The analysis aimed at investigating how the acceptance of theusage of online and mobile payment differs among Germany,Hungary Sweden. Thereby, the following factors wereinvestigated: (1) perceived ease of use, (2) perceived usefulness,(3) perceived security, (4) perceived risk, (5) social influence, (6)information asymmetry and (7) intention to use. Conclusion: The findings of this cross-country study showed that Germany,Hungary and Sweden show a relatively similar level ofacceptance in online payment. In contrast, the acceptance in thecontext of mobile payment differed greatly. Whereas Swedenshowed a high level of acceptance, Germany and Hungaryshowed a relatively moderate level of acceptance.