| Application deadline | Unconfirmed — check official site | February 21, 2027 (2027 cycle) | Unconfirmed — check official site |
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| Cost | $8,250–$11,850 (2027 cycle) | Catalog terms: $2,498–$7,998; 2027: Unconfirmed — check official site | Unconfirmed — check official site |
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| Financial aid | Catalog terms: Need-based financial aid (U.S. applicants only): Amount: Unconfirmed — check official site. Limited and competitive; not available to international applicants or to students who received Exeter Summer aid before.; 2027: Unconfirmed — check official site | Unconfirmed — check official site | Last year's cycle (2026): Free for U.S. families with adjusted gross income under $80,000; need-based aid up to full cost: Amount: Unconfirmed — check official site. Aid for international students is decided case by case.; 2027: Unconfirmed — check official site |
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| Expenses and aid conditions | Catalog terms: Application fee: $100; Need-based financial aid (U.S. applicants only): Amount: Unconfirmed — check official site. Limited and competitive; not available to international applicants or to students who received Exeter Summer aid before.; 2027: Unconfirmed — check official site | Catalog terms: Enrollment deposit: $600. Paid with the application to hold a space.; Application fee: $99–$199. Rises to $149 after the 1st wave deadline and $199 after the 2nd wave deadline.; Mandatory course supplement (Aerospace Engineering, Emergency Medicine, Forensic Science at UCLA): $250; 2027: Unconfirmed — check official site | Last year's cycle (2026): Free for U.S. families with adjusted gross income under $80,000; need-based aid up to full cost: Amount: Unconfirmed — check official site. Aid for international students is decided case by case.; 2027: 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 7–12 when applying; check the provider's rules for graduating seniors | Grades 9–12; Grade timing: Unconfirmed — check official site | Grades 10–12; Grade timing: Unconfirmed — check official site |
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| Additional eligibility | Ages 13–18; Requirement: Open to students currently in grades 7–12 when applying; Requirement: Must attend the entire length of the program; Requirement: Non-native English speakers with fewer than five years of primary-language instruction in English need a TOEFL iBT score of 100 or higher | Requirement: Open to grades 9–12; Requirement: Have completed 8th grade by the program start date (students starting high school in the fall and spring graduates may enroll); Requirement: 3.0 GPA or local equivalent; Requirement: International students must show English proficiency | Ages 14–18; Requirement: Open to grades 10–12; Requirement: Have completed 9th grade (or its equivalent) by the first day of the program; Requirement: Not yet enrolled as a full-time college or university student; Requirement: Graduating seniors may attend in the summer between high school and college or during a gap year |
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| Session dates or duration | Starts July 5, 2027; Ends August 5, 2027 (2027 cycle) | Starts June 13, 2027; Ends August 6, 2027; 1–6 weeks (2027 cycle) | Starts June 27, 2027; Ends August 7, 2027; 6 weeks (2027 cycle) |
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| Format | In person | In person | In person |
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| Housing and supervision | Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Exeter, NH | Los Angeles, Berkeley, San Diego, Santa Barbara, San Luis Obispo, Durham, Atlanta, New York City, Ann Arbor, Seattle, New Haven, Nashville, Oxford, CA, NC, GA, NY, MI, WA, CT, TN | Boston, MA |
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| Selection and application | Application materials: One- to two-page personal essay; School official recommendation (with attendance information and a grade report); English teacher recommendation; Math or science teacher recommendation | Selection: Applicants were reviewed against grade, GPA and programme-fit requirements, with decisions normally in 5-7 business days. Capacity was course/session-specific and could close early; no applicant or acceptance totals are published. Application materials: English proficiency telephone interview or TOEFL/Cambridge score (international students) | Selection: About 80 high-school students are selected through demonstrated mathematical thinking in the problem set, academic context, recommendation, transcript, and short answers. PROMYS does not publish the current applicant count or acceptance rate. Application materials: One letter of recommendation |
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| Official sources | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-10-09 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-10-24Source 5 · checked 2026-10-24Source 6 · checked 2026-10-24Source 7 · checked 2026-10-24Source 8 · checked 2026-10-24Source 9 · checked 2026-10-24Source 10 · checked 2026-10-24Source 11 · checked 2026-10-24Source 12 · checked 2026-10-24Source 13 · checked 2026-10-24Source 14 · checked 2026-10-24Source 15 · checked 2026-08-22 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-08-20Source 5 · checked 2026-08-20Source 6 · checked 2026-08-20Source 7 · checked 2026-08-20 |
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