| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | Unconfirmed — check official site | Last year's cycle (2026): $635–$15,987; 2027: Unconfirmed — check official site | Unconfirmed — check official site |
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| Financial aid | 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 | Unconfirmed — check official site | Unconfirmed — check official site |
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| Expenses and aid conditions | 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 | Last year's cycle (2026): 2026 commuter track application fee: $25; 2026 commuter track registration fee: $585; 2026 commuter track document management fee: $73; 2026 international service fee (international visitors): $500; 2027: Unconfirmed — check official site | 2027 residential package (tuition plus accommodation, breakfast and dinner): Amount: Unconfirmed — check official site. One course is £3,995 if you apply by 29 January 2027, otherwise £4,095; two courses £7,990; three courses £12,085.; Application fee: Amount: Unconfirmed — check official site. Non-refundable and payable at the time of application. (2027 cycle) |
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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 10–12; Grade timing: Unconfirmed — check official site | Grades 11–12; Grade timing: Unconfirmed — check official site | Grades 10–12; Grade timing: Unconfirmed — check official site |
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| Additional eligibility | 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 | Minimum age 16; Requirement: Open to grades 11–12; Requirement: Must have completed 10th or 11th grade by the start of summer classes and continue high school in the fall; Requirement: Overall B average (3.0 GPA, weighted or unweighted); Requirement: Must be 16 by the program's age cutoff date; Requirement: High school graduates may apply only if they will be 16 or 17 during the summer; Requirement: Commuter track: California residents living in the Bay Area with family; Requirement: International students must meet English language requirements | Ages 16–17; Requirement: Open to grades 10–12; Requirement: Must turn 16 before the course start or accommodation arrival date, whichever is earliest; Requirement: 18th birthday must fall after the last day of the programme or accommodation departure date; Requirement: English at CEFR level B2 or equivalent (B1 for English Language & Culture courses) |
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| Session dates or duration | Starts June 27, 2027; Ends August 7, 2027; 6 weeks (2027 cycle) | Catalog terms: 6–8 weeks; 2027: Unconfirmed — check official site | Starts July 5, 2027; Ends July 30, 2027; 1–3 weeks (2027 cycle) |
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| Format | In person | In person / Online | In person |
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| Housing and supervision | Residential. Supervision and housing details: Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Location | Boston, MA | Berkeley, CA | London |
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| Selection and application | 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 | Selection: Complete applications were reviewed on a rolling basis, with course enrollment subject to capacity, prerequisites, and academic-department discretion. The program does not publish a current acceptance rate. | Selection: Applicants are assessed for academic motivation, age, maturity, grades and English readiness. King's does not publish applicant totals or an acceptance rate on the program page; courses can close when full. Application materials: Personal statement |
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| Official sources | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-08-20Source 5 · checked 2026-08-20Source 6 · checked 2026-08-20Source 7 · checked 2026-08-20 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-08-21 | Source 1 · checked 2026-10-24 |
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