The microenterprise earnings of microfinance clients in southeastern Sri Lanka are linked to their initial incomes. Poorer clients face geographic, financial and sociocultural barriers to entry to the most promising microenterprise occupations, leading them to select low-value activities with poor growth prospects. In semi-urban areas, poverty impacts could be strengthened by supplementing loans with nonfinancial interventions encouraging poor clients to select higher-value occupations. In arid rural areas, where microenterprises face severe market and infrastructure constraints, microenterprise development is unlikely to facilitate poverty exit.