Tenured and tenure-track faculty are also eligible to receive additional summer salary during June, July, and/or August. Summer salary is not the default, but can come from various sources depending on the work commitment of the faculty member. Some obtain sponsored grants to conduct research, and often those grants will pay salary for one or more summer months. Sometimes faculty will receive salary from general funds for extra service that they perform for the school, or as compensation for teaching an overload in another semester. Recently, the university's standard practice guide explains the limit on the amount of summer salary faculty can receive from various sources. Any exceptions require the approval of the dean. Please read this policy carefully: http://spg.umich.edu/policy/201.04