The article is focused on researching the hidden effects of seasonal migration in agriculture on Roma communities in Romania. The theoretical framework considers the specific nature of seasonal migration in agriculture and includes elements relevant to understanding the seasonal migration patterns of the Roma population from Romania. The research is based on a qualitative methodological design and over 120 interviews in four communities with Roma individuals and key actors at the community level (e.g., local authorities, teachers, priests, and social workers). The interviews are thematically analyzed, and the hidden costs of seasonal migration are discussed at three levels of analysis: individual, familial, and community. First and foremost, the analysis emphasizes that migration is the most significant factor of social change in the studied Roma communities, and its effects are multifaceted. The analysis reveals significant negative costs of migration in terms of health, education, employability, family, and community life. In the medium and long term, these effects decrease the positive aspects linked to the material gains from migration, making these Roma communities more vulnerable and dependent.