Key dates and deadlines for Middlebury Institute Online programs. 

The in-person program calendar is available here.

Summer 2025

See the Summer 2025 Course Schedule.

May 12

Summer Session A begins. Tuition due (1st day)

May 23

Deadline to ADD and DROP Summer Session A course. Last day for 100% refund, 50% refund on or after May 24 (until next deadline). Late fees added to all unpaid tuition accounts. Contact the Office of Student Financial Services for more information.

May 30

Last day to withdraw from a Summer Session A course for 50% refund, 10% withdrawal refund on or after May 31 (until next deadline). Contact the Office of Student Financial Services for more information.

June 11

Last day to withdraw from a Summer Session A course for a 10% refund. No refunds for Session A course after this date.

June 29

Summer Session A ends

June 30 - July 6

Intersession Break

July 7

Summer Session B begins

July 18

Deadline to ADD and DROP Summer Session B course. Last day for 100% refund, 50% refund on or after July 19 (until next deadline). Late fees added to all unpaid tuition accounts. Contact the Office of Student Financial Services for more information.

July 25

Last day to withdraw from a Summer Session B course for 50% refund, 10% withdrawal refund on or after July 26 (until next deadline). Contact the Office of Student Financial Services for more information.

August 6

Last day to withdraw from a Summer Session B course for a 10% refund. No refunds for Session B course after this date.

August 24

Summer Session B ends

August 25 – September 1

Intersession Break

Fall 2025

See the Fall 2025 Course Schedule.

September 2

Fall Session A begins. Tuition due (1st day)

September 15

Deadline to ADD and DROP Fall Session A course. Last day for 100% refund, 50% refund on or after September 16 (until next deadline). Late fees added to all unpaid tuition accounts. Contact the Office of Student Financial Services for more information.

September 22

Last day to withdraw from a Fall Session A course for 50% refund, 10% withdrawal refund on or after September 23 (until next deadline). Contact the Office of Student Financial Services for more information.

October 2

Last day to withdraw from a Fall Session A course for a 10% refund. No refunds for Session A course after this date.

October 20

Fall Session A ends

October 21 - 26

Intersession Break

October 27

Fall Session B begins

November 7

Deadline to ADD and DROP Fall Session B course. Last day for 100% refund, 50% refund on or after November 8 (until next deadline). Late fees added to all unpaid tuition accounts. Contact the Office of Student Financial Services for more information.

November 14

Last day to withdraw from a Fall Session B course for 50% refund, 10% withdrawal refund on or after November 15 (until next deadline). Contact the Office of Student Financial Services for more information.

November 26

Last day to withdraw from a Fall Session B course for a 10% refund. No refunds for Session B course after this date.

December 13

Winter Commencement

December 14

Fall Session B ends

December 15 – January 4

Intersession Break

Spring 2026

January 5

Spring Session A begins. Tuition due (1st day)

January 16

Deadline to ADD and DROP Spring Session A course. Last day for 100% refund, 50% refund on or after January 17 (until next deadline). Late fees added to all unpaid tuition accounts. Contact the Office of Student Financial Services for more information.

January 23

Last day to withdraw from a Spring Session A course for 50% refund, 10% withdrawal refund on or after January 24 (until next deadline). Contact the Office of Student Financial Services for more information.

February 4

Last day to withdraw from a Spring Session A course for a 10% refund. No refunds for Session A course after this date.

February 22

Spring Session A ends

February 23 – March 1

Intersession Break

March 2

Spring Session B begins

March 13

Deadline to ADD and DROP Spring Session B course. Last day for 100% refund, 50% refund on or after March 14 (until next deadline). Late fees added to all unpaid tuition accounts. Contact the Office of Student Financial Services for more information.

March 20

Last day to withdraw from a Spring Session B course for 50% refund, 10% withdrawal refund on or after March 21 (until next deadline). Contact the Office of Student Financial Services for more information.

April 1

Last day to withdraw from a Spring Session B course for a 10% refund. No refunds for Session B course after this date.

April 19

Spring Session B ends

April 20 – May 10

Intersession Break

May 16

Spring Commencement

Summer 2026

May 11

Summer Session A begins. Tuition due (1st day)

May 22

Deadline to ADD and DROP Summer Session A course. Last day for 100% refund, 50% refund on or after May 23 (until next deadline). Late fees added to all unpaid tuition accounts. Contact the Office of Student Financial Services for more information.

May 29

Last day to withdraw from a Summer Session A course for 50% refund, 10% withdrawal refund on or after May 30 (until next deadline). Contact the Office of Student Financial Services for more information.

June 10

Last day to withdraw from a Summer Session A course for a 10% refund. No refunds for Session A course after this date.

June 28

Summer Session A ends

June 29 - July 5

Intersession Break

July 6

Summer Session B begins

July 17

Deadline to ADD and DROP Summer Session B course. Last day for 100% refund, 50% refund on or after July 18 (until next deadline). Late fees added to all unpaid tuition accounts. Contact the Office of Student Financial Services for more information.

July 24

Last day to withdraw from a Summer Session B course for 50% refund, 10% withdrawal refund on or after July 25 (until next deadline). Contact the Office of Student Financial Services for more information.

August 5

Last day to withdraw from a Summer Session B course for a 10% refund. No refunds for Session B course after this date.

August 23

Summer Session B ends

August 24 – 30

Intersession Break

Fall 2026

August 31

Fall Session A begins. Tuition due (1st day)

September 11

Deadline to ADD and DROP Fall Session A course. Last day for 100% refund, 50% refund on or after September 12 (until next deadline). Late fees added to all unpaid tuition accounts. Contact the Office of Student Financial Services for more information.

September 18

Last day to withdraw from a Fall Session A course for 50% refund, 10% withdrawal refund on or after September 19 (until next deadline). Contact the Office of Student Financial Services for more information.

September 30

Last day to withdraw from a Fall Session A course for a 10% refund. No refunds for Session A course after this date.

October 18

Fall Session A ends

October 19 - 25

Intersession Break

October 26

Fall Session B begins

November 6

Deadline to ADD and DROP Fall Session B course. Last day for 100% refund, 50% refund on or after November 7 (until next deadline). Late fees added to all unpaid tuition accounts. Contact the Office of Student Financial Services for more information.

November 13

Last day to withdraw from a Fall Session B course for 50% refund, 10% withdrawal refund on or after November 14 (until next deadline). Contact the Office of Student Financial Services for more information.

November 25

Last day to withdraw from a Fall Session B course for a 10% refund. No refunds for Session B course after this date.

December 13

Fall Session B ends

December 14 – January 3

Intersession Break

December 19

Winter Commencement

Spring 2027

January 4

Spring Session A begins. Tuition due (1st day)

January 15

Deadline to ADD and DROP Spring Session A course. Last day for 100% refund, 50% refund on or after January 16 (until next deadline). Late fees added to all unpaid tuition accounts. Contact the Office of Student Financial Services for more information.

January 22

Last day to withdraw from a Spring Session A course for 50% refund, 10% withdrawal refund on or after January 23 (until next deadline). Contact the Office of Student Financial Services for more information.

February 3

Last day to withdraw from a Spring Session A course for a 10% refund. No refunds for Session A course after this date.

February 21

Spring Session A ends

February 22 – 28

Intersession Break

March 1

Spring Session B begins

March 12

Deadline to ADD and DROP Spring Session B course. Last day for 100% refund, 50% refund on or after March 13 (until next deadline). Late fees added to all unpaid tuition accounts. Contact the Office of Student Financial Services for more information.

March 19

Last day to withdraw from a Spring Session B course for 50% refund, 10% withdrawal refund on or after March 20 (until next deadline). Contact the Office of Student Financial Services for more information.

March 31

Last day to withdraw from a Spring Session B course for a 10% refund. No refunds for Session B course after this date.

April 18

Spring Session B ends

April 19 – May 9

Intersession Break

May 15

Spring Commencement