Reproductive technologies involving donated eggs or sperm continue to elicit questions regarding family identity and the accessibility of genetic information in Europe. Both policy-makers and affected parents are faced with decisions about how to manage donor-data. Using ethnographic findings and policy analysis, this article compares modes of regulation in Germany and Britain, which variously authorise actors to manage kinship information and family formation. I consider the role of interest groups for affected parents and analyse how they contribute to a moral framing of the decision – if, when and how to tell a child about the donor. This ‘moralisation’, reflecting wider contemporary endorsement of information sharing within family life, tends to encourage early disclosure practices among so-called families-by-donation. German parents expressed greater anxiety about disclosure than British parents, which I attribute to greater regulatory uncertainty and to tensions between clinical pressures of secrecy and the moral pressure for information sharing.
