The concept of the circular economy (CE) has gained widespread attention in academia, practice, and policy over the past decades. However, its implementation poses significant challenges, including diverse interpretations and a lack of conceptual clarity. These challenges hinder both research and practice, making it difficult for organizations to identify IT-driven CE initiatives and for researchers to build on a consistent foundation. We propose design principles that codify actionable design knowledge for IT-driven CE initiatives. Using a mixed-methods approach, we conducted a structured literature review, a quantitative and qualitative text analysis, and a nominal group workshop to identify three design principles, offering actionable design knowledge for practitioners and a structured foundation for researchers. The proposed design principles provide guidance on identifying and implementing IT-driven CE initiatives, thereby facilitating more effective and systematic adoption.