Students at BYU-Idaho are required to follow an honor code. About 99 percent of the university's students are members of the LDS Church. A significant percentage of the student body take an 18- (women) or 24-month (men) break from their studies to serve as missionaries. A BYU-Idaho education is generally less expensive than similar private universities. This is due to a significant help by LDS Church tithing funds, helping keep tuition rates low.