This research aims to find out and analyze the implications of the expansion of sub-district areas on public services in Congkar District, East Manggarai Regency. This research is an empirical legal research supported by a socio-legal approach, a legislative approach and a conceptual approach using primary data and secondary data that are analyzed qualitatively descriptively. The results of the study show that (1) the expansion of Congkar District from Sambi Rampas District has had a real positive impact in the fields of administrative services, health, education, and infrastructure (2) the factors that hinder public services in Congkar District, East Manggarai Regency that hinder public services after the expansion are the factors of funds, infrastructure facilities and human resources.

The management of regional finances aims to realize good governance that includes efficiency and transparency in meeting public needs. Efficiency and transparency in the decentralization of financial management policy by the Financial and Asset Management Agency (BKAD) of Kupang City are key factors in ensuring proper regional financial management. This study uses an empirical research method. After data collection, the researcher categorized the data based on the sources and analyzed them. The results of this study indicate that Efficiency has not been fully achieved due to mismatches in budget allocation. Meanwhile, transparency remains suboptimal because the existing system often experiences disruptions, limiting open access to information. The most dominant inhibiting factor affecting implementation effectiveness is human resources (HR). In addition, dependency on central government funding hampers flexibility and independence in regional financial management. The study suggests that BKAD should conduct technical competency training and development for staff, the Kupang City Government should increase local revenue (PAD), and the public should actively participate in budget public consultations.