| Application deadline | February 1, 2027 (2027 cycle) | January 13, 2027 (2027 cycle) | February 12, 2027 (2027 cycle) |
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| Cost | Free attendance; check separate expenses (2027 cycle) | $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 | Grades 10–11; Grade timing: Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Additional eligibility | Requirement: Current Texas high-school sophomores/juniors, rising juniors/seniors; full attendance, no concurrent summer school. First-generation/hardship backgrounds encouraged, not exclusive admissions requirement. | 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 | Minimum age 15; Requirement: Rising juniors/seniors and at least 15 at start, without exceptions.; Requirement: English proficiency, TOEFL 90/equivalent or published waiver. |
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| Session dates or duration | Starts June 6, 2027; Ends June 11, 2027 (2027 cycle) | Catalog terms: 4–7 weeks; 2027: Unconfirmed — check official site | Unconfirmed — check official site |
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| Format | In person | In person / Online | Online / In person |
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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 | Marlborough, NEIA day/residential or online, not Wellesley |
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| Selection and application | Application materials: Online application, transcript, activities/leadership, essays, recommendation and resume. Decisions by mid-April; supplemental deadline does not extend initial entry. | 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 | Unconfirmed — check official site |
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| Official sources | Source 1 · checked 2026-10-10 | 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 2026-10-10Source 2 · checked 2026-10-10 |
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