Tuition and Financial Aid

GISB is committed to enrolling a diverse student body and making a bilingual education affordable to all families. We offer various tuition reductions and a need-based financial aid program.

2022 – 2023 Tuition

GradeTuitionCorporate-Sponsored Tuition
Preschool & Kindergarten (until 2:00 pm)$23,460$32,225
Preschool & Kindergarten After School Program (2:00- 4:00 pm)*$4,905$4,905
Grades 1 – 4$23,690$32,455
Grades 5 – 10$25,080$33,845
Grades 11 & 12$26,710$35,475

*Extended Care is available until 6:00 pm. Learn more.

International Student Program 2022-2023

Full Year$23,500
One Semester$12,000

Payment Plans and Financial Aid

Payment Plans

GISB offers three different payment plans. Please note that the 5 & 9 installment plans are not available for families applying to the International Student Program.

  • 2 Installments: 20% tuition due on May 1 and 80% on July 1
  • 5 Installments: 20% tuition due on May 1, July 1, September 1, October 1, and November 1 – Installment Plan Fee: $100 per student
  • 9 Installments: 20% tuition due on May 1, followed by eight 10% payments on the first of the month from July until February – Installment Plan Fee: $300 per student

Financial Aid

We understand that a bilingual education is not only an investment of time, but also finances, and we encourage families to explore if they are eligible to receive financial aid. GISB awards aid on the basis of financial need. Awards are based on recommendations from School and Student Services for Financial Aid (SSS), and the school’s available budget, which may vary from year to year.

Financial Aid is currently limited to a maximum of 50% of the cost of tuition for students in preschool through grade 5. Families with children enrolled in grade 6 or higher are eligible for financial awards up to 100% of demonstrated need.

Please visit School and Student Services’ secure family portal to complete an application using GISB’s School Code: 3139. The cost to complete an aid application is $55; you will be prompted for payment information at the end of the application process. To learn more about how to submit a financial aid application, please read the Guide for Financial Aid Applications.

All recipients of financial aid must complete the process annually in order to be considered for financial support.

Important Dates

Financial aid applications available onlineMid October 2022
Financial aid applications due for returning familiesJanuary 15, 2023
Financial aid applications due for new familiesFebruary 1, 2023

Other Tuition Reductions

The following tuition reductions are available in the 2022-2023 school year:

GISB offers a sibling discount of 5% for the 2nd child enrolled at GISB and 10% for the 3rd child enrolled at the school. This reduction is not available for corporate-sponsored tuition plans.

Children of GISB employees are eligible for a 50% tuition reduction. This reduction is not available for corporate-sponsored tuition plans.

For further information about financial aid, please contact Controller Paula Spencer at or call 617-783-2600 ext 13.

Tuition and tuition discounts, as well as the financial aid award budget, are set annually by the Board of Trustees.