Microfinance interventions are increasingly recognised as a tool for poverty alleviation and entrepreneurship development in developing countries. A longitudinal study design was employed with mixed methods including surveys and interviews over a five-year period. Teachers who received microfinance support reported an average increase in business revenue by 25% compared to those not receiving such assistance. Microfinance interventions significantly enhance entrepreneurial activities among secondary school teachers, contributing to poverty alleviation efforts. Policy-makers should consider scaling up microfinance programmes targeting educators as a viable strategy for economic empowerment and poverty reduction. microfinance, entrepreneurship, secondary school teachers, Lagos informal market areas, longitudinal study The empirical specification follows $Y=\beta_0+\beta^\top X+\varepsilon$, and inference is reported with uncertainty-aware statistical criteria.