The Palmyrah palm (Borassus flabellifer L.), often referred to as the "Tree of Life". It holds a significant cultural and economic significance, serving as a cornerstone for rural livelihoods and environmental sustainability. Despite its numerous advantages, the expansion of Palmyrah palm cultivation is influenced by a range of socio-economic factors. This study examines the socio-economic determinants affecting farmers’ willingness to expand Palmyrah palm cultivation in Vembar South Gram panchayat, located in the Thoothukudi district of Tamil Nadu, South India. To analyse the binary nature of the outcome variable, the Probit Econometric Model was employed to assess the factors influencing the likelihood of expanding Palmyrah cultivation based on various socio-economic parameters. The findings reveal that farming experience, higher income, and larger landholdings significantly increase the likelihood of expansion, whereas gender, occupation (agriculture), and family size are associated with a decreased likelihood. Notably, female landowners, non-agricultural workers, and farmers from smaller families with higher income levels are particularly inclined to expand Palmyrah cultivation. The study’s findings provides important insights for policymakers aiming to promote Palmyrah cultivation and foster rural economic development through targeted interventions that could effectively support the socio-economic well-being of the farming communities.