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Important Dates & Deadlines 2025-2026
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Advanced Opportunities
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Advanced Opportunities State Portal
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TermStudent Application Data Entry WindowVerification WindowDistrict Submission Deadline
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Summer 2025April 7-June 20, 2025June 23-Aug 22, 2025August 29, 2025 (courses and exams)
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Fall 2025/Trimester 1April 7-October 15, 2025October 16-Nov. 14, 2025November 21, 2025 (courses and exams)
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Spring 2026November 24 2025 to March 15, 2026March 18-May 8, 2026May 15, 2026 (courses) May 22, 2026 (exams)
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Trimester 2November 24, 2025 to Feb 20, 2026March 18-May 8, 2026May 15, 2026 (courses) May 22, 2026 (exams)
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Trimester 3February 15, 2026 to April 3, 2026April 6, 2026 to May 8, 2026May 15, 2026 (courses) May 22, 2026 (exams)
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For complete information, please go to https://www.sde.idaho.gov/student-engagement/advanced-ops/
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Boise State University
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SessionRegistration DeadlineCourse Drop DeadlineFee DeadlineGrades Available
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Summer 2025June 20, 2025July 25, 2025July 25, 2025September 5, 2025
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Fall 2025September 26, 2025October 17, 2025October 17, 2025January 16, 2026
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Spring 2026February 20, 2026March 13, 2026March 13, 2026June 5, 2026
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Year-longSeptember 26, 2025October 17, 2025October 17, 2025June 5, 2026
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For complete information, please go to https://extendedstudies.boisestate.edu/concurrentenrollment/about-concurrentenrollment/
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College of Southern Idaho
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TermRegistration DeadlineDrop/Refund Deadline
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Fall, Trimester 1, Trimester 1 & 2 ClassesOctober 1, 2025October 1, 2025
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Trimester 2February 4, 2026February 4, 2026
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Spring, Trimester 2, Trimester 2 & 3 and yearlong classesFebruary 25, 2026February 25, 2026
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3rd Trimester classesApril 10, 2026April 10, 2026
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For complete information, please go to https://www.csi.edu/dual-credit/
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College of Western Idaho
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High School Dual Credit Deadlines
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TermRegistration OpensRegistration closesDrop without a W and refund deadlineWithdrawal deadline (W grades issued)
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Fall 2025April 28, 2025August 15, 2025August 29, 2025November 7, 2025
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Spring 2026November 10, 2025January 16, 2026February 2,2026April 17, 2026
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Summer 2026March 2, 2026May 29, 2026June 5, 2026July 10, 2026
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For complete information, please go to http://cwidaho.cc/programs-degrees/dual-credit
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IDLA
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TermRegistration StartRegistration EndStart DateDrop/Refund Deadline
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Early Fall 2025March 31, 2025August 22, 2025August 25, 2025September 12, 2025
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Late Fall 2025March 31, 2025September 5, 2025September 8, 2025September 26, 2025
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Early Spring 2026October 13, 2026January 9, 2026January 12, 2026January 30, 2026
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Late Spring 2026October 13, 2025January 23, 2026January 26, 2026February 13, 2026
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For complete information, please go to https://www.idahodigitallearning.org/students-parents/advanced-opportunities/
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ISU
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TermRegistration DeadlineDrop Deadline for no "W"
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Fall 2025October 10, 2025October 10, 2025
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Spring 2026February 13, 2026February 13, 2026
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For complete information, please go to https://www.isu.edu/ecp/registration/deadlines/
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NNU
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TermRegistration DeadlineDrop Deadline for no "W"
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Fall 2025October 15, 2025October 31, 2025
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Spring 2026March 15, 2026March 31, 2026
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Year LongOctober 15, 2025October 31, 2025
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For complete information, please go to https://highschool.nnu.edu/concurrent-credit
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University of Idaho
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Semester/Full Year Classes
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TermRegistration DeadlineDrop/Refund DeadlineDrop Deadline- No Refund