This study investigates the role of English in Bali’s tourism‑driven economy, focusing on investment in English learning among Balinese tour guides. It examines the intersection of economic, social, and cultural factors shaping language acquisition, comparing learners of English at the grassroots who rely on formal, informal, or mixed methods of acquisition. Using Darvin and Norton’s (2015) investment model, the study explores how ideology, identity, and capital influence English learning trajectories. Data were collected through questionnaires and semi‑structured interviews with six Balinese tour guides, representing diverse linguistic biographies and learning contexts. Findings reveal that despite systemic barriers, learners of English at the grassroots demonstrate resilience and adaptability by leveraging social and cultural capital. While some depend on informal interactions, others access formal education or combine both approaches to enhance their opportunities. The study underscores the vital role of English as a tool for economic and social mobility in Bali’s international tourism industry, while also investigating the investment elements that shape learners’ trajectories.