| Application deadline | Unconfirmed — check official site | January 13, 2027 (2027 cycle) | Unconfirmed — check official site |
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| Cost | Unconfirmed — check official site | $4,180–$15,980 (2027 cycle) | Unconfirmed — check official site |
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| Financial aid | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Expenses and aid conditions | Unconfirmed — check official site | 2027 application fee: $75 (2027 cycle) | Unconfirmed — check official site |
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| Stipend or pay | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Eligibility | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Additional eligibility | Requirement: Normally not have completed high school before class begins; Requirement: Demonstrate the mathematical maturity of an advanced high-school student; Requirement: Be prepared for intensive college-level lectures, problems, independent work, and mathematical communication; Requirement: Meet any future course-specific readiness or scheduling requirements; Exclusion: Assuming grades 9-12 is a fixed rule; sufficiently prepared middle-school students may apply; Exclusion: Assuming competition mathematics, prior research, a published prerequisite course, or Bay Area residence is required; Exclusion: Assuming admission, financial aid, academic credit, publication, recommendation, or a research result is guaranteed | Ages 16–18; Citizenship: International students may apply to eligible formats with visa/English requirements; Citizenship: Financial aid is limited to U.S. citizens, permanent residents, and DACA recipients; Residency: Residential students live on campus; Residency: Commuters must live with a parent/guardian or approved adult age 25+ within reasonable commuting distance in New England; Residency: Online students participate from home; Requirement: Graduate high school and enter college in 2027, 2028 or 2029.; Requirement: Be at least 16 by June 13, 2027 and not turn 19 before July 31, 2027.; Requirement: Show maturity and academic readiness for intensive college-level work; Requirement: Meet selected-course prerequisites; Requirement: Submit English-proficiency evidence if English is not the native language; Requirement: Clear the calendar for the full program, especially residential study; Exclusion: An applicant may apply to only one Harvard Summer School high-school program in a year; Exclusion: International students using a Harvard-sponsored I-20 cannot take online classes; Exclusion: Participation does not guarantee Harvard College admission or another institution's acceptance of credit; Exclusion: No minimum GPA or required PSAT/SAT/ACT score is published | Requirement: Previously published 2026 route: For high-school tracks, be a rising grade 9, 10, 11, or 12 student and satisfy the selected course's age and prerequisite rules; Requirement: Previously published 2026 route: For the completed 2026 catalog, fit the typical ages 14-17 range; Requirement: Previously published 2026 route: For an overnight track, satisfy the residential age rule confirmed for the selected cycle; Requirement: Previously published 2026 route: Be able to attend the complete virtual, commuter, or residential schedule and use any required technology or materials; Requirement: Previously published 2026 route: Pay the selected program fee after acceptance by the live enrollment deadline; Exclusion: A generic application does not make a student eligible for every course; track prerequisites and capacity control; Exclusion: The 2026 overnight page conflicts between at least age 15 and older than 15 for housing, so a 15-year-old must obtain written confirmation; Exclusion: No 2026 date, course, price, acceptance, certificate, scholarship, or college-admission benefit is guaranteed for 2027 |
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| Session dates or duration | Unconfirmed — check official site | Catalog terms: 4–7 weeks; 2027: Unconfirmed — check official site | Unconfirmed — check official site |
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| Format | Unconfirmed — check official site | In person / Online | Unconfirmed — check official site |
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| Housing and supervision | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Location | Unconfirmed — check official site | Cambridge, Massachusetts | Unconfirmed — check official site |
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| Selection and application | Selection: Applicants must persuade Euler Circle that they are prepared and a good instructional fit; Euler Circle says ordinary seat scarcity usually is not the main constraint and does not publish acceptance statistics. | Selection: Harvard evaluates essays, transcripts/current grades, counselor report, GPA, maturity, readiness, and program fit holistically; it publishes no minimum GPA and does not require standardized academic tests. Application totals, admit rate, option/course capacities, waitlist odds, and scholarship odds are not published. Application materials: Student-created online application and short essays | Selection: Illinois Tech says most students who meet a program's eligibility are accepted, after which enrollment requires payment. It publishes no umbrella acceptance rate, and individual track capacity, prerequisites, and review can differ. |
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| Official sources | Source 1 · checked 2026-10-12Source 2 · checked 2026-08-20Source 3 · checked 2026-08-20Source 4 · checked 2026-08-20 | Source 1 · checked 2026-10-09Source 2 · checked 2026-10-09Source 3 · checked 2026-10-09Source 4 · checked 2026-10-09Source 5 · checked 2026-10-09 | Source 1 · checked 2026-10-09Source 2 · checked 2026-10-09Source 3 · checked 2026-10-09Source 4 · checked 2026-10-09Source 5 · checked 2026-10-09Source 6 · checked 2026-08-20 |
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