In this article, we provide a balanced critique of Sen's Capability Approach (CA) with reference to its potential to inform career guidance theory and practice. There are varying understandings and interpretations of the CA. Some see capabilities as universal, whilst others favour a more relativist view. The CA is also vulnerable to misunderstanding. Critiques based on misunderstanding are easily dismissed, so our focus is on substantive conceptual and practical critiques. Three main challenges are explored: conceptual debates about the nature of freedom and justice; limitations arising from the disciplinary origins of the CA; and challenges in operationalising the CA.