Informal caring for adults with disabilities is a source of unacceptable disadvantage in employment, finances, social inclusion, and health; here termed the ‘care penalty’. This penalty can be appropriately tackled through equality law, making care a ground for unlawful discrimination. Carers are not adequately protected from indirectly discriminatory disadvantages by other grounds such as sex and disability. Nor are carers adequately protected by carer-specific provisions such as the UK right to request flexible working.