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Planning ahead for fall 2025? Let's get started! Simply fill out an online inquiry form. We’ll send you a viewbook and keep you up-to-date on admissions events and next steps.
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Co-ed independent day school in Boston's Back Bay for academically adventurous students in grades 9–12
Since our founding, we have been dedicated to increasing access and welcoming as many qualified students as possible. Our need-based financial aid program empowers us to attract strong applicants from a wide range of backgrounds and to compose a well-rounded and talented student body. To that end, we are committed to partnering with families to meet the cost of a Commonwealth education.
$1.4M
$40,200
$55,400
$6,900–$54,900
Commonwealth’s financial aid application opens for 2024–2025
Deadline to complete and submit your financial aid application through Clarity
Deadline to upload all 2023 W-2s and 1099s to Clarity
Commonwealth informs families of financial aid decisions along with admission decisions
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.
Planning ahead for fall 2025? Let's get started! Simply fill out an online inquiry form. We’ll send you a viewbook and keep you up-to-date on admissions events and next steps.