In this article, I argue that, by offering ageing return migrants new opportunities both to organize their lives and to rethink their social attachments, the extension of public healthcare in Taiwan constitutes a new contextual feature of the transnational social field bridging Taiwan and the USA. I use the concept of ‘transnational healthcare seeking’ to describe how returning seniors try to maintain their physical, psychological and social well‐being by accessing the benefits of public healthcare available in their homeland rather than in the USA. Furthermore, I offer the concept of ‘logics of social right’ to demonstrate how older returnees seek to reconfirm their social commitment to their homeland and to defend their entitlement to its state‐provided benefits against public criticism that they are free riders. In so doing, this article contributes a nuanced understanding of how ageing migrants imagine, pursue and construct an ideal later life across national borders.