when are csu applications due

California State University (CSU) applications for fall semester admission are typically due between October 1 and January 31. For spring semester admission, the application period is usually from August 1 to September 30, but for Spring 2026 admission, the deadline has been extended to October 15, 2025. Some campuses and programs may have slightly different deadlines, and certain applicants such as athletes, veterans, and international students might have different timelines. It is best to check the specific CSU campus and program for exact deadlines. For example, Cal State East Bay's Fall 2025 undergraduate application deadline is May 15, 2025, while other campuses may adhere to the general CSU timeline mentioned above.