When Do Korean Children Start Elementary School? The March 1 Rule

Korean children start elementary school on March 1 of the year after the calendar year in which they turn 6. Because the rule uses the birth year and not the exact birthday, every child born in the same calendar year enters together, so first graders are between about 6 years 2 months and 7 years 2 months old on their first day.

This is one of the places where Korea's age rules still work differently from the everyday "international age" described in our post on why Korean age changed with the 2023 law. This page is based on the Ministry of Government Legislation's Easy Law guide, the Ministry of Education's English site and a 2026 enrollment guide from the Busan Metropolitan City Office of Education, all read in October 2026.

1. What the rule says

Easy Law, which summarizes Korean statutes in English, says children must enter elementary school on March 1 of the year following the year they turn 6, and must attend until graduation. It cites Article 13(1) of the Elementary and Secondary Education Act. The Ministry of Education adds that elementary education lasts 6 years, that students begin at the age of 6, and that it is compulsory and free.

The Busan Office of Education guide puts the same rule in calendar terms: children must attend from March 1 of the year following the calendar year of their sixth birthday. It also gives a worked example. For 2026, the eligible children are those born between January 1, 2019 and December 31, 2019.

2. Working out the age on the first day

The 2019 example lets us check the arithmetic. Using March 1, 2026 as the first day:

• A child born January 1, 2019 turned 6 on January 1, 2025, and is 7 years and 2 months old on March 1, 2026.
• A child born December 31, 2019 turned 6 on December 31, 2025, so on March 1, 2026 is 6 years, 2 months and 1 day old.

So the age gap inside one class can be almost a full year: from about 6 years 2 months to 7 years 2 months. The same pattern holds each year. For the class entering on March 1, 2027, the eligible birth year is 2020 (turning 6 in 2026), using the same formula of birth year plus 7. The calendar-year rule means a December baby and a January baby are classmates.

The Easy Law and Busan wording says "the year following the year they turn 6." That is the calendar-year count, not the 2023 birthday-based count. The two sources do not say the school rule was changed by the 2023 age law, and the Busan guide still describes the calendar-year version for 2026.

3. Early and later entry

The standard date is not the only option. Easy Law says that, notwithstanding the general rule, children may instead be enrolled in the year following the year they turn 5 or 7. The Busan guide describes early admission as possible on March 1 of the year a child reaches the age of five, with applications filed each year between October 1 and December 31 at the local Eup, Myeon or Dong Community Service Center.

Postponement is also possible. The Busan guide says that if a child subject to compulsory education cannot attend because of illness, developmental issues, severe disabilities, immigration, an overseas assignment or study abroad, the guardian must apply directly to the school. Deferral may be granted for up to one year, with extensions in exceptional cases, and exemption for a long or permanent period if the reasons persist.

4. Notices, deadlines and penalties

Elementary and middle school are compulsory. If a guardian fails to enroll a child within the designated period, the head of the local Eup, Myeon or Dong office, the superintendent of education or the district office of education sends notices. Easy Law says that failure to comply after notice may result in a fine of up to KRW 1 million.

5. Children of foreign nationals

The Busan guide says that for children of foreign or undocumented families, an enrollment notice is not issued even if they were born in Korea. Enrollment is possible by presenting proof of residence (a residence certificate, housing contract or affidavit) to the elementary school in the relevant school district and completing consultation. Easy Law adds that foreign children residing in Korea may also access public education.

6. Quick reference

7. Key takeaways

• School starts on March 1 of the year after the calendar year a child turns 6, per Article 13(1) of the Elementary and Secondary Education Act as summarized by Easy Law.
• Because the birth year decides, classmates can differ by nearly a year in actual age.
• For 2026, the eligible children were born from January 1 to December 31, 2019.
• Entry one year earlier or later is allowed, with early-admission applications due October 1 to December 31.
• Check your local education office for the current year's notice, since the guides above are annual summaries.