Young male student listening to instruction in the Lower School library


tuition, Fees, & Financial aid

Understanding that an International School of Indiana education is a significant investment in a student's future, ISI is committed to supporting families from a wide range of financial circumstances. Our financial aid program makes it possible to admit students from many socioeconomic backgrounds, and we believe this diversity is essential to providing an enriching educational environment for ISI students.

Understanding Tuition and Fees 

The cost of educating an ISI student exceeds our tuition amount by several thousand dollars. We supplement the difference for all families by relying on philanthropic support, including individual and corporate donors. Beginning for the 2024-2025 academic year, ISI will expand participation in the Indiana Choice Scholarship Program, known widely as the "Voucher" program to kindergarten to grade 12 students. For qualifying ISI families, vouchers can reduce the cost of tuition by approximately $6,000 to $7,300 per student per school year. To learn how the Voucher Program at ISI can make an ISI education more affordable, click here

For information on this or other merit scholarships, please review our Scholarships section below.

ISI makes every effort to be as transparent as possible about the costs associated with an ISI education. Tuition & Fee Schedules are posted no later than January for the next school year, and families can also access a breakdown of additional costs, including fee-based programs like child care, enrichment, athletics, and exchange trips.

View 2024-2025 Tuition & Fees


First page of the PDF file: 2024-2025TuitionandFees_1

Click to view the 2024-2025 tuition schedule. 

Financial Aid

We encourage the families of all applicants to carefully review tuition and fees and to evaluate their own ability to pay school costs for the coming year and in future years. If parents/guardians think they will need assistance with ISI tuition, they must apply at the time of admission. If the request for assistance is not made with a student's initial application for admission, consideration for financial aid will only be granted at a later date, including subsequent years, if the need is due to a significant, unexpected change in circumstances, for example, a job loss. 

Eligibility for financial aid is based on a family's demonstrated need - as determined by important factors such as family income, assets, family size, and tuition obligations for other dependent children. In order to determine the financial need of a family, ISI utilizes recommendations from Clarity, and requires financial documentation such as federal tax returns to be submitted annually. 

Additionally, demand for grade level and language track affect the amount awarded. Awards for grade levels and language tracks in high demand will be smaller. Applicants may also appeal a financial aid award by emailing and explaining the reasons for their appeal.


How much assistance will my family receive?

This chart depicts what assistance looks like at ISI for families that qualify for financial aid.


Financial Aid
Average Family Contribution
Lower School (3 Year Old - Grade 5)
$50,000-$100,000 $5,000-$10,000 $11,760-$16,760
$100,000-$150,000 $5,000-$7,000 $14,760-$16,760
$150,000-$220,000 $2,000-$5,000 $16,865-$19,865
Middle School (Grades 6 - 8)
$50,000-$100,000 $12,000-$17,000 $5,268-$10,268
$100,000-$150,000 $7,000-$12,000 $10,543-$15,543
$150,000-$220,000 $2,000-$12,000 $15,718-$20,718
High School (Grades 9 - 12)
$50,000-$100,000 $13,000-$21,000 $2,772-$10,997
$100,000-$150,000 $7,500-$13,000 $11,189-$16,689
$150,000-$220,000 $2,000-$7,500 $16,882-$22,382

High School Tuition Lock

Originally launched in the Fall of 2023, the High School tuition lock offered to lock in High School tuition for all new and continuing High School students, at the 2023-24 tuition rate for each subsequent term, provided families meet the criteria and enroll in the program. The program is now in its second year, and new High School students can also take advantage of the tuition lock at the tuition rate for the year in which they enroll.

ISI recognizes that tuition is an important factor when families select a high school. The school has taken several important steps to make attending ISI for High School a reality for more families, including participation in the Indiana Choice Scholarship Program, and generous aid packages for students in grades 9 to 12 with financial need. The ISI High School tuition lock program is another demonstration of the school’s commitment to strategic recruitment and retention efforts, and providing access to families of diverse socioeconomic backgrounds.

As rising costs for a broad range of goods and services weigh on families, ISI hopes fixed tuition costs for the duration of high school will eliminate uncertainty and provide peace of mind for families, and demonstrate the school’s dedication to preparing Upper School students and their families for college. 

About the Program

  • Enrollment in the program is open for new and continuing grade 9 students, and transfer students in grades 10 and 11.
  • Enrollment requires a $1,000 non-refundable tuition lock deposit, which will be applied to the first invoice of a student's senior year. For F-1 students who are admitted but are unable to obtain a Visa will be refunded, however. 
  • Families must be in good financial standing to register, including being up to date on all payments and fees.
  • Tuition lock is restricted to the High School program only.
  • The tuition lock does not include fees. Fees remain variable.
  • The tuition lock does not include financial aid packages, as aid is issued annually and remains variable based on a families demonstrated need.
  • International Students and Corporate Students are eligible for the program.
  • Children of ISI employees are not eligible to participate in the program due to other aid packages.
  • You must adhere to the following terms to remain enrolled in the tuition lock program, however special circumstances may be taken into consideration before disqualification:
    • Keep all financial accounts current and up to date.
    • Apply for financial aid and provide required documents in a timely manner (if applicable).
    • Student must remain in good academic standing.
  • Current families must enroll in the program by March 1.


Kim Bio

317-923-1951, ext. 102

Nick Bio

317-923-1951, ext. 369

Ashley Gibson

317-923-1951, ext. 334