The school invoice can be used by schools and other similar institutions to request payment for services. Schools may bill students and parents for instruction or they may bill other parties for the use of their facilities. Types of institutions that may issue this invoice include elementary schools, high schools, colleges, universities, and special interest schools (such as dance schools, technical schools, nursing schools, etc.). Typical clients, aside from students, would be community organizations, special events, community fairs, out-of-curriculum classes, and lecturers. The institution may charge an hourly rate ($/hr) or by the interval (day, week, month, year, or semester).