MIT Academic Calendar 2026‑2027: Important Dates & Deadlines

The MIT Academic Calendar 2026‑2027 provides every important date and deadlines from MIT application and enrollment dates, tuition payment due dates, and course add/drop windows to university holidays and final exam schedules.

Reading the Massachusetts Institute of Technology academic calendar helps you stay ahead of MIT registration deadlines, plan around the MIT exam schedule, and never miss milestones such as the last day to withdraw without a “W” or the start of the MIT Summer Session.

MIT operates on a semester system enhanced by its unique Independent Activities Period (IAP):

• Fall Semester: mid‑September to mid‑December (14 instructional weeks + 1 exam week)
• Independent Activities Period (IAP): first four weeks of January (intensive short courses, workshops, and research)
• Spring Semester: late January to early May (14 instructional weeks + 1 exam week)
• Summer Session: May through August, offering a range of accelerated and intersession courses

Whether you’re planning your 14‑week semester workload, exploring creative projects during IAP, or leveraging Summer Session for makeup credits, the MIT Academic Calendar 2026‑2027 is your guide to a successful year at MIT.

MIT Academic Calendar Winter Session (IAP) 2027

1. The first day of the January Independent Activities Period (IAP) is Monday, January 5, 2026.
2. Spring pre‑registration for continuing students opens Monday, January 5, 2026 (incurs a $85 late fee after January 15).
3. IAP Physical Education & Wellness classes begin Monday, January 5, 2026.
4. The IAP pre‑registration deadline is Friday, January 15, 2026, at 5:00 PM, according to the MIT Academic Calendar 2026.
5. Martin Luther King Jr. Day (university closed) is Monday, January 19, 2026.
6. The GAP grades meeting is on Tuesday, January 20, 2026.
7. CAP deferred‑action meetings run from Tuesday, January 22, 2026, to Thursday, January 24, 2026.
8. Registration week for the spring term runs from Monday, January 26, 2026, to Friday, January 30, 2026.
9. Undergraduate registration for third‑quarter Physical Education & Wellness classes opens Tuesday, February 3, 2026, at 8:00 AM.
10. The grade deadline for IAP subjects is Tuesday, February 3, 2026.
11. Fall‑term grade summaries become available to departments on Wednesday, February 4, 2026.
12. The spring‑term registration deadline (incurs a $50 late fee) is Friday, February 6, 2026.
13. The degree‑application deadline for May SB and advanced degrees (incurs a $50 late fee; $85 after April 10) is Friday, February 6, 2026.
14. Third‑quarter Physical Education & Wellness classes begin Monday, February 9, 2026, according to the MIT Academic Calendar 2026.
15. The GAP grades and February degree‑candidate meeting are on Tuesday, February 10, 2026.
16. The last day to add H3 half‑term subjects, change H3 subjects to/from P/D/F grading, or convert H3 subjects from listener to credit is Friday, February 13, 2026.
17. Presidents’ Day (university closed) is Monday, February 16, 2026.
18. Monday’s schedule of classes is held on Tuesday, February 17, 2026.
19. Faculty officers recommend degrees to the corporation (degree award date: February 23) on Wednesday, February 18, 2026.
20. The minor‑completion deadline for final‑term seniors (incurs a $50 late fee) is Friday, February 20, 2026.
21. The GAP deferred‑action meeting is Tuesday, February 24, 2026.

MIT Academic Calendar Spring 2027

1. IAP begins Monday, January 4, 2027.
2. Martin Luther King, Jr. Day holiday is Monday, January 18, 2027.
3. Registration Week for the spring term is from Monday, January 25, 2027, through Friday, January 29, 2027.
4. IAP ends Friday, January 29, 2027.
5. The first day of classes is Monday, February 1, 2027.
6. Presidents’ Day holiday is Monday, February 15, 2027.
7. The Monday class schedule will be observed Tuesday, February 16, 2027.
8. MIT Spring break 2027 is from Monday, March 22, 2027, through Friday, March 26, 2027.
9. Patriots’ Day holiday is Monday, April 19, 2027.
10. The last day of classes is Tuesday, May 11, 2027.
11. Final examinations will be held Friday, May 14, 2027, and from Monday, May 17, 2027, through Wednesday, May 19, 2027.
12. Commencement activities will take place from Wednesday, May 26, 2027, through Friday, May 28, 2027.

MIT Academic Calendar Summer 2026

1. Thesis due for June degrees (other than doctoral) is on Friday, May 8, 2026.
2. Summer registration opens for all students on Monday, June 1, 2026.
3. CAP grades meetings run from Tuesday, June 2, 2026, to Wednesday, June 3, 2026.
4. The first day of regular Summer Session classes is Monday, June 8, 2026.
5. GAP grades meeting is on Monday, June 8, 2026, according to the MIT Academic Calendar 2026.
6. CAP deferred‑action meetings run from Thursday, June 10, 2026, to Friday, June 11, 2026.
7. The summer registration deadline (incurs a $50 late fee) is Friday, June 12, 2026.
8. The fall pre‑registration deadline (continuing students incur a $85 late fee after August 27) is Friday, June 12, 2026.
9. The last day to apply for September SB and advanced degrees (incurs a $50 late fee; $85 after July 17) is Friday, June 12, 2026.
10. GAP deferred‑action meeting is on Monday, June 15, 2026.
11. Juneteenth (university closed) is on Friday, June 19, 2026.
12. The last day to submit advanced‑degree thesis titles for September degrees (incurs a $85 late fee after July 17) is Friday, July 10, 2026.
13. The last day of Summer Session classes is Friday, August 28, 2026.
14. Summer Session officially ends on Friday, August 28, 2026.

For more on the MIT Academic Calendar, visit the Massachusetts Institute of Technology registrar’s key dates website.