Child accounting texts published in the US during the early to mid-twentieth century are utilised to reveal the potency of Foucauldian analyses of accounting as a disciplinary technology. It is contended that child accounting-a voguish technique for recording, monitoring and governing the school pupil-provides a compelling illustration of Foucault's emphasis on individualization as a foundation for the exercise of disciplinary power. Further, child accounting encompassed mundane practices which could activate disciplinary power such as continuous hierarchical surveillance and normalizing judgment. Centred on the child in the place of instruction rather than the employee in the corporation, the study offers a socio-historical exploration of accounting at its margins and in a domain where Foucault's work on discipline has particular resonance.