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Tuition & Tuition Assistance

Serving children from infancy through grade 12, Principia School is a student-centered, future-focused coeducational day and boarding school grounded on the teachings of Christian Science. We welcome students of diverse faiths who value scholarship and are eager to grow in character, embrace opportunity, and pursue excellence.

Questions About Tuition Assistance or Scholarships? Contact Us.

Krista Capp, 314.514.3142. Contact Krista.

Scholarship Information

Tuition Assistance

We are committed to building a community of learners, and that means making a Principia education affordable for all qualified students preschool–grade 12. 

Tuition assistance is based on demonstrated need and comes in the form of grants, not loans. Applications are completed online via the School & Student Services (SSS) website. There is a $55 application fee. Tuition assistance applications follow the same admission application deadlines. Admittance and tuition assistance decisions are communicated at the same time. Contact Krista Capp, Director of Tuition Assistance at 314.514.3142 or for additional questions. 

Application Deadlines

Applications available for Fall 2023–24 October 3, 2022
January 2023 Admission: all levels (domestic only) November 18, 2022
Early Admission: grade 9* December 9, 2022
Early Admission: grades 6–12* January 10, 2023
International Admission: grades 9–12 January 12, 2023
Early Admission: preschool through grade 5 January 27, 2023
Priority Admission Applicants: all levels* April 3, 2023
Late Admission Applicants: all levels June 20, 2023

* (scholarships available)

Adhering to these application deadlines is essential for tuition assistance consideration.

For Level Specific Tuition Assistance Information



Early Childhood






Lower School






Middle School






Upper School




Applying for Assistance

New International Students

New Domestic Applicants

  • Complete and submit the SSS Financial Application

  • Review How to Apply for step-by-step instructions for completing the application

  • Our school code is – 5908 (or you can enter “Principia School”)

  • Provide 2021 tax documents

Contact Student Support Services (SSS) at 800.344.8328 or

Scholarship Information