Child welfare work involves investigating referrals to determine whether a child requires protection or support. In Sweden, the number of children referred to child welfare authorities has increased in recent years, but most children do not receive services. This article aims to enhance understanding of how child welfare representatives reason when determining client eligibility. The article is part of a longitudinal research programme following 2,123 children across eight Swedish child welfare authorities. The study draws on interviews with twenty-five unit managers and child welfare workers. To analyse the results, the study employs concepts that highlight how client eligibility is negotiated by modifying client demand, job conception, and client conception. The findings reveal that child welfare workers may modify client demand by addressing issues without providing services, modify job conception by either narrowing or broadening what is considered within the remit of child welfare, and modify client conception by focusing on motivated and receptive clients. These findings are discussed in the context of previous research and ongoing policy trends in Swedish child welfare.