The study investigates the financing of school library services in Katsina State. To do this, five research questions were formulated and answered with respect to the administrative structure of school libraries, financing of school libraries, the nature of funding school libraries and the services and funding school libraries in Katsina State. Survey research method was used for the study. The population of the study consist of secondary schools in Katsina State principals, school librarians, Directors inspectorate, Assistant Directors Zonal Education Directorate and Assistant Directors Library Services were the subject of the study. Questionnaire was used to collect data for this study. The data collected were presented and analysed using frequency tables, percentages and histograms/charts. The study found among others that school library financing depends solely on the grants from the Ministry of Education, Teachers Service Board and Science and Technical Education Board. It was also revealed that PTA, philanthropist, well wishers and library friends were the sources of funding of school libraries in Katsina States. The study concluded that the financing of school library services in Katsina State can be described as inadequate. Lastly, the need for recruitment of professional librarians in order to ensure effective and efficient management of school libraries was also recommended.