Dates and Deadlines

Application Deadlines

Spring 2026

  Application Available Now

  November 3, 2025: Spring enrollment begins

  December 9, 2025: Final application deadline

  January 20, 2026: Program start date

Summer 2026

  December 9, 2025: Application Available 

  TBD: Summer enrollment begins

  May 3, 2026: Final application deadline

  TBD: Program start date

Dates and Deadlines

Fall 2025

13-Week Session

EventDate
Course Enrollment BeginsMarch 31
13-Week Session Classes BeginSeptember 2
Deadline to Add a Class†September 9
Deadline to Drop++, 100% Tuition AdjustmentSeptember 15
Deadline to Withdraw**, 60% Tuition AdjustmentSeptember 22
Deadline to Withdraw**, 40% Tuition AdjustmentSeptember 29
Deadline to Withdraw** without Petitioning^, No Tuition AdjustmentOctober 30
Deadline to Withdraw*** from the SemesterDecember 4
Classes EndDecember 5

All times are in Mountain Time.
† Add a class by 11:59 p.m. online using Buff Portal. Adding a class after the start-date requires program director and instructor approval.
++ Drop a class by 11:59 p.m. online using Buff Portal or by email to info.online@colorado.edu.
** Withdraw by 11:59 p.m. online using Buff Portal or by email to info.online@colorado.edu. A notation of W will appear on your transcript.
*** Withdraw by 11:59 p.m. by email to info.online@colorado.edu. A grade of W will appear on your transcript.
^ Petitioning is designed to provide students who experience unavoidable, extenuating circumstances the opportunity to waive a University policy that, if enforced, would result in unsatisfactory academic progress or financial consequences. For more information, please contact info.online@colorado.edu.