The day high school assignment results come out, seeing your child placed at a school that wasn't the one they wanted can send a parent straight into panic mode. "Can't we just file an appeal and get it changed?" is the first instinct for many, so they call the school or the education office. But here's the short answer: there is no "appeal" window for high school assignment at all. What exists instead is a separate, narrowly defined system called "assignment change." If your situation doesn't meet its conditions, the only path left is a formal transfer. Here's exactly when an assignment can actually be changed, and by when you'd need to apply.

How high school assignment is decided in the first place

In Seoul, the pool of schools a student can apply to is set by school zone, and within that zone, students rank their preferences and are assigned by lottery. Gyeonggi Province runs a similar system by school district -- Suwon, Seongnam, Anyang, and others -- using ranked preference followed by lottery. The school-zone concept that determines middle school assignment sounds similar, but high school admission should be treated as a separate system, since ranked preference and lottery work together here. For the 2027 school year, Gyeonggi's high school admission runs its early-round screening from August 24 to December 1, and its regular-round screening from December 4 to February 5 of the following year. The Seoul Metropolitan Office of Education also announced its plan for the following school year on April 1, 2026, which included expanding priority same-school placement for children from families with three or more kids.

Not liking your assignment doesn't qualify as grounds for an "appeal"

Because the outcome is decided by lottery, every year brings requests to "switch me to a different school" -- but simply not getting your preferred school is not, on its own, a valid reason to change an assignment. The same goes for a long commute or being separated from friends. The system that education offices actually accept and process isn't an "appeal" -- it's "assignment change," and it only applies when your residence has actually changed. It's worth drawing that distinction first: these are different systems with different names.

The one condition under which assignment change is granted

Under Seoul's standard, an assignment change is only processed if, between the closing of the main application period and the start of the pre-enrollment reassignment application period, the entire family's residence has moved to a location outside both the school zone of the assigned school and the school zone where the family lived at the time of the original application. In other words, the family must have genuinely relocated, and that relocation must clear both school zones to even be considered. A move on paper only -- like a fake residence registration -- obviously doesn't qualify; the application has to come with documentation proving actual residence, such as a certified copy of the resident registration.

If you moved within the same school zone -- it still won't change

This is the part people most often miss. If you moved within the same school zone as your assigned school, neither an assignment change nor a transfer will be approved. The commute may genuinely have gotten harder, but if the move didn't cross out of the school zone itself, it doesn't count as the kind of "change of residence" the system requires. If you're weighing a move, checking whether the new address fully clears your child's school zone beforehand is the best way to avoid disappointment.

When assignment change isn't an option, what's left is a transfer

If your situation doesn't meet the conditions for an assignment change, what remains is a transfer. But a transfer, too, isn't approved for a move within the same school zone, so in the end the requirement -- "an actual move that clears the school zone" -- isn't much different from what assignment change demands. Transfer procedures require different documents and follow different rules at each school level -- elementary, middle, and high -- so if you're trying to move from an assigned school to a different one, the right first step is to check with the General Affairs division of your local Office of Education, or Seoul's education call center at 1396.

What 9th graders should also keep in mind

Every year from fall through winter is when GPA calculation and application processing for high school admission are at their busiest, and during this window, 9th graders' ability to transfer in or out is itself restricted. If you're considering a transfer, you need to move before this restricted period begins. On top of that, early-round and regular-round schools run on different timelines, and applying to both at once is prohibited in principle -- though the details get more specific, since being accepted to certain nationwide-recruitment schools can exclude a student from applying to other regular-round schools. Applying to an early-round school such as a specialized vocational high school also falls under this same dual-application rule, so it's worth checking against it too.

Steps to remember

① A high school assignment result cannot be changed through an "appeal," and simply disliking the outcome isn't a valid reason. ② An assignment change is only considered when, between the close of the main application and the start of the pre-enrollment reassignment application, the family's residence has moved out of both the assigned school's zone and the zone at the time of application. ③ A move within the same school zone qualifies for neither an assignment change nor a transfer. ④ If you don't meet the conditions, what's left is a transfer, and the procedure differs by school level. ⑤ Because 9th graders face transfer restrictions during the fall-to-winter admission period, and dual-application rules apply as well, anyone considering a move or transfer should act before that window and confirm the details with their local Office of Education in advance. Since the exact criteria can vary by residence and school zone, the safest approach is to confirm the final judgment with your local Office of Education.