Tuition and Financial Aid
Since our founding, Commonwealth School has been dedicated to increasing access and welcoming as many qualified students as possible through extensive need-based financial aid. Making tuition more affordable and within budget for our families continues to be an institutional priority. This empowers us to attract strong applicants from a wide range of backgrounds and to compose a well-rounded and talented student body.
$1.8M
financial aid granted for 2025–2026
$46,260
average financial aid grant for 2025–2026
$60,075
tuition and fees for 2025–2026
My family has been eternally changed because of Commonwealth School and its generous financial aid program. Without it, my son would’ve attended a different school that was not equipped to meet his academic, emotional, or social needs the way Commonwealth has. However, because of Commonwealth's financial aid program, and over the course of his time at this phenomenal school, my son has transformed into a confident, independent thinker and hard-working young adult. I am forever grateful.
Parent '25
Financial Aid Grants and More
We remain committed to partnering with families to meet the cost of a Commonwealth education. Commonwealth’s financial aid includes textbooks, biannual all-school trips, and participation in clubs and sports. We also offer supplemental grants for transportation and technology; additional scholarships for summer programs and school-sponsored international trips; discounted standardized testing, test preparation, and tutoring; and flexible payment plans.
Applying for financial aid at Commonwealth takes less than thirty minutes.
Flexible Payment Plans
All Commonwealth families have three payment plan options; they select one annually that works best for their budget:
- Ten Monthly Payments (from May through February)
- Two Payments (by June 1 and October 1)
- One Payment (by June 1)
Families of returning students should consult the Parent Portal (login required) for information that is specific to them.
Financial Aid Timeline for New Families
October 1
Commonwealth’s financial aid application opens for 2026–2027
February 1
Deadline to complete and submit your financial aid application through Clarity
February 15
Deadline to upload all 2025 W-2s and 1099s to Clarity
March 10
Commonwealth informs families of financial aid decisions along with admission decisions
Access and Affordability
All students can avail themselves of all opportunities at Commonwealth through additional grants for technology, transportation, and international travel, as well as sliding-scale costs for tutoring, standardized tests, and more.
- Technology grants are made available to eligible families and can be applied to purchasing a MacBook Pro laptop, software, a printer, and a graphing calculator at a reduced cost. For the 2025–2026 school year, on average, families paid $175 for this package.
- Transportation stipends offset some or all of the cost of commuting to Commonwealth via the MBTA.
- Chatfield Cultural Scholarships help cover student travel and exchanges, as well as travel-related independent projects.
- Discounted professional tutoring, standardized tests, and test preparation are also available to students with financial aid grants.
Managing Other Costs
Commonwealth is dedicated to ensuring that every opportunity is available to every student. Here you'll find more information about the range of costs associated with our program and what families with financial aid grants might expect to pay.
Questions?
Our admissions team is here to help and happy to guide you through the financial aid process. Please do not hesitate to reach out to us to get answers to your questions.
