In January 2008, the Kenya government declared Free Day Secondary Education (FDSE) in all public schools in the country as a fulfillment of Education for All (EFA) which is a global commitment and strategy to give children universal education. As a result key aspects of the Free Secondary Education on academic performance remain unknown. The study was to investigate school-community support and implementation of Free Day Secondary Education in Trans-Nzoia East sub-county, Kenya. The study answers the following questions; what is the role of principals in financial management and its influence implementation of FDSE. The study adopted Human Capital Theory based upon the work of Schultz (1971), Sakamota and Powers (1995). The study adopted the descriptive survey design and the population of the study comprised of 14 Day Schools that present candidates for Kenya Certificate of Secondary Education (KCSE) in Trans-Nzoia East Sub-County. The sample size consisted of Principals, Teachers and students of 14 day secondary schools drawn from the study population. Purposive sampling was used to select the principals and class Teachers, while stratified random sampling was used to select student respondents. The instruments for data collection were questionnaires, an interview schedule for SubCounty Director of Education and document analysis.