This study forms part of a programme of work EIF carried out in partnership with the Joseph Rowntree Foundation (JRF) exploring the extent and nature of UK service provision on inter-parental relationships (IPR), with a particular focus on families either in or at risk of poverty. This programme of work, involved three inter-related strands to begin to map and better understand current IPR provision in the UK, including: a rapid evidence assessment of existing literature; a small-scale audit of a sample of relationship support provision; qualitative case study research in five local authority areas.