The study investigated the effect of family background on career decision-making among senior high school students. Descriptive cross-sectional survey design was adopted in the study. Multiphase stage sampling was used to sample 248 senior high school students. Structured questionnaire was used for data collection. Data was analysed through linear multiple regression independent sample t-test. The study revealed that self-efficacy of the home factors influenced students‟ career decision-making more than any other variable. It was concluded that self-efficacy should be enhance to improve career decision-making and parent should be interested in the program of study of students in their career decision-making. It was also found that perception of students on the influence of family factors on career decision making is not affected by the sex of the students. It was recommended parents should be interested in their wards programme choice and in developing the self-efficacy of students.