•In-role performance and intrapreneurship are distinct dimensions of performance.•IEO is positively associated with in-role performance and intrapreneurship.•ESE is indirectly associated with in-role performance and intrapreneurship via IEO. Recently, scholars have extended the concept of entrepreneurial orientation to the individual level. Yet, how individual entrepreneurial orientation (IEO) contributes to employee performance is not well understood. Building on role theory, we develop a novel typology of employee performance that distinguishes between employee behavior aimed at achieving in-role performance and employee engagement in intrapreneurial activities. To test how IEO affects the different performance prototypes of this typology, we collected survey and archival data on IEO, entrepreneurial self-efficacy (ESE), employee in-role performance, and engagement in intrapreneurship in a Dutch subsidiary of an international consultancy firm. Our results show that IEO is positively associated with in-role performance and intrapreneurship. ESE is also positively associated with in-role performance and intrapreneurship, albeit indirectly via IEO. These results mark an initial step in unraveling the impact of IEO on employee and firm performance, as well as why different outcomes occur as a result of IEO.