This study investigated determinants of efficiency of pension fund administrators in Nigeria. The study used ex-post facto research design. The population of the study comprised 21 pension fund administrators registered by the National Pension Commission in Nigeria. The study used purposive sampling method to select 10 registered Pension Fund Administrators. The study collected data from the companies’ financial statements and used panel regression to analyze the data. The study found that determinants of efficiency of listed Pension administrators in Nigeria include short term debt to total and total debt to total asset. Total debt to total asset was found to have a negative and statistically significant effect on efficiency of pension administrators in Nigeria. The study recommends that pension fund administrators in Nigeria should to obtain short term debt and also ensure more realization of total asset since it can enhance efficiency. Total debt to total asset should be maintained in order to increase efficiency of pension fund administrators.
Keywords: Efficiency, pension fund administrators, short term debt to total asset, total debt to total asset