In Sweden there is no minimum wage legislation. Wages for 88% of workers are governed by collective agreement, and for the remainder, they are set by individual employment contracts. The lowest wage levels in collective agreements for adults were about SEK 19,000 in 2022, and the median wage was about SEK 34,200, which corresponds to SEK 119 and SEK 214 per hour, respectively. Wages not set by collective agreement or employment contract are supposed to be ‘reasonable’. A reasonable wage is a wage in line with the level laid down in the sectoral collective agreement. Incarcerated workers earn SEK 13 an hour in Sweden. They are not categorised as workers, however, and therefore are not covered by labour law or collective agreements. But the products of their work – goods and services – are either sold on the open market or used for the benefit of the Swedish Agency for Prisons and the Probation Service, as the services or goods do not have to be bought on the open market. Such low pay would be considered unreasonable for any other work. However, work has been a central aspect of serving time in Swedish prisons for a very long time. Over time, such work has been motivated and governed by different principles and aims, such as the work-first principle, meaning, i.e., that work is both a societal duty and a right, and the aim of disciplining the incarcerated workers for internal and external purposes (resocialisation). The rehabilitative aspect of work has been emphasised. Proposals to raise the pay level have been rejected as being too expensive and counteracting the rehabilitative function of serving time in prison. This article seeks to explain the perceived rationale behind this state of affairs and to bring a human rights perspective into the picture and reflect on its implications.