Most OECD member countries operate within political economies shaped by capitalist neoliberal policies, and economic viability appears essential for maintaining stable commercial operations, including farming enterprises. However, urban and peri-urban farming in these countries is often viewed through a lens of multifunctionality, emphasizing environmental and social sustainability, while giving less attention to economic sustainability. A scoping review was undertaken to identify factors affecting the economic sustainability and associated viability of soil-based commercial farms located in urban and peri-urban settings within OECD member countries. Following the PRISMA ScR methodology, four scientific databases were searched, resulting in 2,389 potential articles, of which 170 were eligible for inclusion. Narrative synthesis identified that many urban/peri-urban farms are small in scale and employ a range of strategies to minimize costs and maximize efficiencies due to limited land availability as well as high land and labor costs common in and around metropolitan locations within OECD member countries. These strategies include direct distribution, production refinements, circularization of resources, differentiation and diversification strategies, as well as building relationships of reciprocity with the local community. External factors such as the policy and governance context, availability of skilled labor and education, and mentoring opportunities also influence the likelihood of success of urban farming. Some urban farms are developing alternative economic and organizational models, where their viability depends on factors that may not be captured by conventional financial metrics. This review found that many soil-based urban farms in OECD countries struggle to achieve economic sustainability or organizational viability. Successful organizations are those that refine operational, technical, and human systems within the farm, while also responding to their broader social, political, and ecological context.