Over the last two decades, private renting has undergone a major revival in the UK, more than doubling its share within the housing system. Young adults increasingly remain in the sector into their 30s, giving rise to the term 'Generation Rent'. Using data from the UK's Family Resources Survey, this article shows how reliance on the sector varies by poverty status, particularly for young adults and children. In 2017/18, 42 per cent of adults under 40 in low-income poverty lived in private renting, compared with just 26 per cent of non-poor. This is almost double the proportion of 20 years earlier. Private renting is now home to more poor adults under 40 than owner occupation and social renting combined. In addition, one in three children in poverty (36 per cent) now lives in private renting, three times the level of 20 years ago. For both adults and children, rates are even higher in London and the South. Although rates of increase have slowed in recent years, this dramatic shift in the housing circumstances of those in poverty has a number of implications for housing and social policy which have not yet been sufficiently recognised.