Although European societies are becoming increasingly multilingual due to migration, and children are raised in increasingly multilingual environments, we still know very little about how bilingual and multilingual children develop and function linguistically. We also know little about the socio-economic factors and social attitudes, such as language prestige, shaping language use in migrant contexts. Thus, within Working Group 7 “Multilingual competence and new speaker varieties” we are organising a two-day workshop focusing on bilingual children from migrant families. In particular, it will be devoted to an examination of the bilingual child’s language development in the areas of phonology, lexis, morpho-syntax and discourse. We will also discuss the linguistic identities of migrant families and their impact on home language and literacy transmission practices in these families across Europe.