This paper explores the impetus behind Britain’s first national social-security policy, the Workmen’s Compensation Act of 1897, and its successors in the first part of the twentieth century, leading up to the 1946 National Insurance (Industrial Injuries) Act. This period witnessed the zenith and gradual decline of global British economic predominance, the strains of three major wars and the gradual fall of the British Empire. Against this backdrop, the paper suggests that securing the workplace against accidents and compensating their consequences were seen as two means towards the same end: the optimization of worker productivity in the UK. As the case of workplace accidents suggests, the origins of modern Britain’s welfare state lay in ensuring the smooth operation of the economy, while also assuaging the worries of social reformers and workers alike about occupational health.