Micro and macroeconomic benefits of an increased presence of microenterprises in developing economies are still unsatisfactory mainly due to finance-induced sustainability issues. This study examines the impacts of social media financing on the economic sustainability of sampled 143 TVET-induced microenterprises in Ilaro town, Nigeria. A simple random sampling with a weighting method is employed to collect cross-sectional survey data from operators/managers of TVET-induced microenterprises in the study area. Unlike what is common in many survey-based studies, this study applied the weighted least square method at a 5% significance level to correct for sample selection bias (and random errors) and subsequently estimates the impacts of financing via Facebook, X, and WhatsApp on micro firms’ economic sustainability index. The study found that measured social media-based digital finance (WhatsApp and X platforms) produced positive and significant impacts on the economic sustainability index of microenterprises in Ilaro town, Nigeria. However, the positive impact of Facebook financing is found as an insignificant predictor. The study concludes that offering financing support through social media technology (specifically, WhatsApp and X platforms) has important positive implications for ensuring sustainable growth of micro-businesses in Nigeria particularly in Ilaro town. Consequently, the study recommends that both owners (and operators) and managers of TVET-induced microenterprises in Ilaro town should embrace the use of social media (particularly WhatsApp and X platforms) to seek financial support to stimulate the sustainability of their business operations. Also, a need for the upgrade of digital and internet infrastructures in the country is suggested for the government.