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Tuition & Affordability

Investing in a culturally diverse, bilingual private education is investing in your child’s future. 

As an ISB student, your child will have access to individuals, ideas, and experiences that are not typical of a traditional school environment.

2025-2026 Annual Tuition

Grade Level Cost
Half-Day for Preschool (Toute Petite Section and Pre-K Only) - Mornings Only $28,100             
Preschool (Toute Petite Section, Pre-K, & Mid-K) and Kindergarten $35,130
Lower School (Grades 1-5) $38,830
Middle School (Grades 6-8) $40,960
Upper School (Grades 9-12) $48,820

In addition to tuition, fees, books, and school supplies, most students incur additional costs, which will vary depending on students’ needs and activities. To allow for planning and transparency, please see below for the range of costs associated with our program and the reduced fees families with financial aid grants might expect to pay.

Additional information on ISB’s Tuition & Fees schedule can be found here.

Learn more about the Programme Bleu Fidélité, which offers a tuition freeze for eligible Upper School students enrolled at ISB since Grade 5 or earlier. Click here for details.

Financial Aid

ISB is committed to diversity and inclusion, including socio-economic diversity.
Our financial aid program allows students to have full access to our program, including not only the academic experience in the classroom, but also after-school clubs, transportation, athletics, and field trips. 

Key Data for the 2024-2025 School Year

  • 20% of the student body participates in the financial aid program.
  • The average grant for families participating in the financial aid program is $19,500.

Financial Aid Application Process

Deadlines:
Complete the Clarity application online
Returning families: December 15, 2024
New families: February 15, 2025

How to Apply: 
Applying for ISB financial aid through Clarity.
Resources: Clarity Quick Reference Guide | Clarity Family Application Guide 

  • ISB partners with Clarity to conduct financial need assessments for families that may need assistance in paying tuition. The application process is fair and confidential. Families should apply online. Clarity charges a processing fee.  Families who need financial assistance with this fee, please contact Victor Ng.
  • Please find this guide to help you prepare to fill out the application. 
  • To get started, please go to the Clarity Application and create an account. The application typically takes less than 30 minutes to complete. The Clarity Application is also mobile-friendly so you can complete it from anywhere. You are also able to save your progress and return at any time. If you need support during the application, there is in-app support available through the “Help” button in the bottom left of the screen, as well as email and phone support at support@clarityapp.com or 206-210-3752.

Frequently Asked Questions

Additional Information