A Kanagawa private high school sets its own exam. The prefecture's parent guide for the April 2027 public selection still prints the usual private pattern, because most families sit both. The guide says the pattern is the usual case and that the school's own recruitment guidelines (募集要項) control the day, the fee and the papers. An offer is that school's decision.
How the exams usually line up
The guide's table for private high schools, beside the public common selection:
Pattern
Academic test
Schools you may sit
When the guide says the exam starts
Money
Recommendation (推薦), with the junior-high principal's recommendation
In principle, none
One private school only
From Fri 22 Jan 2027
The school sets the enrollment deadline after it announces results
Single application (単願)
Yes
One private school only
The school sets the day
Same
Concurrent with the public exam (併願)
Yes
One private school, and you may also sit the public common selection
From Wed 10 Feb 2027
Fees other than the entrance fee are due on or after Sat 27 Feb 2027, the day after public results
Open (オープン)
Yes
Private and public, more than one school
The school sets the day
The school sets the deadline
For April 2027, use "from 22 January" and "from 10 February", then the date in that school's guidelines.
The same guide prints a list of private schools in the prefecture that recruit from outside their own junior high. The list is dated April 2026 and the guide says it can change. Schools that do not recruit publicly are left off. Fees, places and the entry rule are "ask the school." One named exception: Seisa High School (星槎高等学校, Seisa) asks, as an entry condition, that the applicant need special educational consideration and be recognized as refusing school or tending that way. That is an entry rule on the list, not a ranking.
What families paid for April 2026 entry
The prefecture's 22 October 2025 release is the latest average sheet found for this article. It is Reiwa 8, students who entered in April 2026, for full-time private high schools that recruit publicly. It is not the bill for April 2027. Ask for this year's 生徒納付金.
The average first-year payment was 1,008,884 yen. Inside that, the average entrance fee was 223,087 yen, other payments at entry 143,456 yen, tuition 488,087 yen, and other annual charges 154,252 yen. The same sheet's highest first-year total was 1,560,000 yen and the lowest was 758,400 yen. Of 57 full-time schools that recruit publicly, 52 let a family that is also sitting the public exam postpone the entrance fee. Five do not. The sheet names them; check it before you assume a postponement.
What the prefecture pays toward the fees
The July 2026 public guide describes the private-school subsidy as it stood on 1 May 2026, and it labels the yen figures 令和8年度. Tuition support goes up to the average prefectural private tuition of 480,000 yen a year. For a livelihood-protection household or a household whose resident-tax income levy is zero, entrance-fee support goes up to the average entrance fee of 212,000 yen. If the cap is higher than the school's actual fee, the extra is not paid. The prefecture's own subsidy (学費補助金) is for a student and parents who both live in Kanagawa and a school set up in Kanagawa. For correspondence, the headquarters has to be in the prefecture. If a parent lives abroad and the municipal-tax base cannot be checked, the guide says the prefecture subsidy does not apply. The headline salaries (about 2.7 million to 7.5 million yen, and 7.5 million and above) are a model household of two parents, one high-school student and one junior-high student, with one parent earning a salary. The test itself is the parents' municipal-tax formula, and in a designated city the adjustment deduction is multiplied by three quarters.
Which pot you are in depends on nationality and residence status. The private-school page, updated 20 April 2026, is a short sequence of questions. Apply through the school.
A high school, the upper part of a secondary school, a special-needs high-school department, or a specialized-training college's upper course goes to the nationality questions. A foreign school, including an international school, skips those questions and goes to the later question about when the student entered.
A Japanese national is in the new tuition-support system (就学支援金(新制度)).
So is a student who is a special permanent resident, a permanent resident, a spouse of a Japanese national, or a spouse of a permanent resident; a long-term resident (定住者) who intends to live in Japan permanently; or a person with Dependent status (家族滞在) who finished elementary and junior high in Japan and intends to work and settle in Japan after high school. The page's wording for that last group is 家族滞在で、日本の小中学校を卒業し、高校卒業後、日本で就労して定着する意思がある.
Everyone else is asked whether they entered the school on or after 1 April 2026. If yes, the page points them to the newer study support (高校生等・新修学支援), which has an income limit. The page says a student with the status Student (留学) who entered on or after 1 April 2026 is in none of these systems: 令和8年4月1日以降に入学した「留学生」は、いずれの制度も対象となりません。
The page does not print the yen. The guide's caps above are the May 2026 figures. Confirm both with the school, because the guide says the system is the one in force on that date.
What goes wrong
The public result is on 26 February 2027. A different status is not something this article can arrange.
What to do now
Subsidy questions: 045-210-3793, weekdays 8:30–12:00 and 13:00–17:15.
Your child's dates, not the general ones
Add your child and ward. The timeline does the rest.