CBSE Class 12 admissions for the 2025–26 academic year typically close by August 31 . Admissions after this date require special approval from CBSE, requested through the school principal with valid reasons. This ensures students meet the 75% attendance requirement for board exam eligibility. For the 2025 board exams, registration was due by October 4, 2024, with a late fee option until October 15, 2024.