The Care Act 2014 provides for ‘parity of esteem’ between people with social care needs and carers. This is achieved by extending the principles of prevention and wellbeing to carers; reinforcing carers’ right to an assessment; and setting national eligibility criteria for access to carer support services. This article reports on research that examined the impact of these changes on older co-resident carers of older people in four English local authorities. Findings are described in relation to four key themes: organisational arrangements and rationale; the aims of carer support and preventative services; design and delivery of carer assessment; and barriers to assessment and support. The findings of the research suggest that, despite the new statutory requirements, underlying contradictions and tensions in local authorities’ relationship with carers, and efforts to support them, remain unresolved.