You apply to boarding school by submitting an application through Gateway to Prep Schools or the Standard Application Online with transcripts, two teacher recommendations, SSAT scores, student and parent essays, and an interview. Applications open in August, deadlines fall January 15–February 1, decisions arrive March 10, and replies are due April 10.

Key facts about applying

  • Standard deadline window: January 15–February 1; decisions March 10; reply by April 10.
  • Two common platforms: Gateway to Prep Schools and the Standard Application Online (SAO) — one profile serves many schools.
  • The SSAT costs about $175 per sitting, runs October–April, and most schools superscore multiple attempts.
  • Financial aid (SSS/PFS) is due with the application, not after admission.
  • A balanced list is 6–10 schools spanning reach, match, and likely admits.

What is the month-by-month application timeline?

The boarding school application cycle runs 18 months, from spring research in the year before entry through the April enrollment decision. The timeline below targets September 2027 entry.

Boarding school application timeline for September 2027 entry
WhenWhat to do
Spring 2026Research schools; build a list of 6–10 across selectivity levels
Summer 2026Begin SSAT prep; draft the main student essay; schedule fall visits
September–October 2026Register for October/November SSAT; open Gateway/SAO accounts; request teacher recommendations
October–December 2026Campus visits and interviews; take the SSAT (retake in December/January if needed); start the SSS/PFS aid form
January 2027Submit applications and aid materials by January 15–February 1
March 10, 2027Decisions released with aid awards
March–April 2027Attend revisit days; compare aid; enroll by April 10

What do boarding schools evaluate?

Boarding schools evaluate five components: the transcript (two most recent years, trend-weighted), SSAT scores against each school’s median, two teacher recommendations, the student’s essays and interview, and the parent statement. The interview carries more weight than most families expect — it tests whether the student, not the parent, wants to attend.

Prepare with real interview questions and strong answers, calibrate your list with acceptance rates, and submit aid materials on the same schedule — see how financial aid works.

Application FAQ

When are boarding school application deadlines?

Most US boarding school applications are due January 15 to February 1 for entry the following September, with decisions released March 10 and enrollment replies due April 10. Schools with rolling admissions accept applications year-round until classes fill.

What is the SSAT?

The SSAT (Secondary School Admission Test) is the standardized admission test used by most US boarding schools, testing verbal, quantitative, and reading skills plus an unscored essay. It is offered monthly October–April, costs about $175 per sitting, and students typically take it twice — most schools superscore.

What grades do boarding schools look at?

Boarding schools review the two most recent full academic years plus current-year grades — for grade 9 entry, that means grades 7 and 8. An upward trend matters more than perfection; schools weigh the transcript alongside teacher recommendations from current English and math teachers.

Can you apply to boarding school after the deadline?

Yes, in two ways: schools with rolling admissions accept applications until full, and even deadline schools reopen for "late-season" candidates in spring when enrolled students withdraw. Financial aid budgets, however, are usually exhausted by March — late applicants often must be full-pay.

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