Although prisoners have significant care needs and are particularly vulnerable following release, there have been longstanding concerns about their social care. Among its provisions, the 2014 Care Act defined the responsibilities of local authorities for identifying and meeting the social care needs of prisoners. Here, we report the findings of a national survey of local authorities undertaken in 2016, which explored the early arrangements put in place following the Care Act for prisoners on release. Eighty-eight of 158 local authorities responded, including 81 per cent of those with prisons in their catchment area. Key themes included difficulties with case finding, with a reliance on referrals from other agencies, although provision for those already known to local authorities generally worked well. Other themes were difficulties in sharing assessments and information between local authorities, and problems with care planning and co-ordination with other agencies. We discuss some of the tensions and challenges inherent in implementing the Act and highlight areas requiring attention, including the need for more robust case finding and systems for information transfer. We also suggest measures to strengthen arrangements.