For political reasons, the Spanish dictator Francisco Franco limited the number of civilian Spanish workers sent to Germany during the Second World War. Despite agreeing to send 100,000, the number of workers never exceeded 9,550. Their impact on the German war economy was small. This paper demonstrates that, in limiting worker transfers, Franco went against his own economic incentives, considering that the Spanish government was taking a commission from the workers’ remittances. By limiting the number of workers sent, Franco satisfied the Allies’ pressure to minimise cooperation with Germany. In support of this argument, this article offers updated estimates for the number of workers, their skill levels and remittances. It also provides the first estimates of Spanish costs and income from the programme.