D-4 Visa Korea: Language Study Requirements and What It Does Not Allow

D-4 or D-2 — pick correctly the first time

Both are study-related statuses, but they cover different things and are not interchangeable.

D-2 (Student) — degree programmes at accredited universities: bachelor’s, master’s, doctoral, and certain associate degree and research courses.

D-4 (General Trainee) — non-degree study and training, most commonly:

• Korean language programmes at university-affiliated language institutes
• Certain vocational or industrial training programmes

If your goal is a Korean language course before entering a degree programme, D-4 is the relevant status. If you have already been admitted to a degree course, apply for D-2.

Why this matters practically

• The two statuses carry different part-time work conditions
• Extension criteria differ, particularly around attendance and academic progress
• Changing from D-4 to D-2 later is a change of status application with its own requirements — it is not automatic even if you complete a language course at the same university

Where you apply

• From outside Korea — at a Korean embassy or consulate, after your institute issues a certificate of admission
• Inside Korea — a change of status application at an immigration office, if your current status permits it

As of August 2026. Requirements are set by the Korea Immigration Service and change; confirm the current list on HiKorea before assembling documents.

What the application asks for

The published document set generally includes the following. Individual offices and consulates may ask for more.

From the institute

• Certificate of admission issued by the language institute or training organisation
• Business registration certificate of the institution

From you

• Passport and application form
• Photograph meeting the specified format
• Proof of financial capability
• Proof of academic background — typically the highest diploma or transcript obtained
• Fee

Financial capability is the part that decides most cases

The reviewing office wants evidence that you can pay tuition and living costs without unauthorised work. In practice this means:

• A bank balance certificate, in your name or a sponsor’s
• The balance must generally have been held for a minimum period, not deposited days before applying
• If a sponsor’s account is used, proof of the relationship and a letter of support

The required amount and holding period are published and revised periodically, and may differ by nationality — some nationalities face additional documentation requirements. Check the figure applying to you rather than a figure quoted in a forum post.

Tuition payment evidence is often requested, showing that fees for the first term have been paid to the institute.

Do not fabricate financial documents. Verification is routine, and a false document ends the application and affects future ones.

Working part-time is conditional, not automatic

Holding D-4 does not by itself permit you to work. Working without permission is a breach of status with consequences ranging from fines to departure orders.

Permission to engage in activities outside status

To work part-time you must obtain permission (chegeo jagyeok oe hwaldong heoga, 체류자격 외 활동허가) from an immigration office. The published conditions typically involve:

• A minimum period of stay in Korea before you may apply
• Attendance requirements at your institute
• In some cases, a Korean language proficiency threshold such as a TOPIK level
• A confirmation from your institute
• Weekly hour limits, which differ between term time and vacation
• Restrictions on the type of work permitted

Employer details are part of the permission. The permission is generally tied to a specific workplace. Changing employers means applying again, not simply moving.

Prohibited work categories exist and include certain entertainment and adult-industry roles, regardless of hours.

Why institutes care about attendance

Language institutes report attendance to immigration. Falling below the institute’s threshold can lead to:

• Loss of permission to work
• Refusal of your next extension
• The institute reporting you, which affects your status directly

Students who take a job first and worry about attendance later frequently lose both. Treat the attendance requirement as the binding constraint it is.

Extension, and what comes after

Extension

D-4 is granted for a limited period and extended in increments. Apply before your current permission expires — overstaying, even briefly, has consequences that outlast the visa.

Extension applications generally require:

• Attendance record from the institute
• Grade or progress report
• Continued proof of financial capability
• Proof of the next term’s tuition payment
• Proof of address

The reviewing office assesses whether you are genuinely studying. Repeated term changes, poor attendance, or institute transfers without clear reason attract scrutiny.

Total permitted duration

There are limits on how long you can remain on D-4 for language study. Someone planning several years in Korea should plan the transition to another status rather than assuming indefinite extension.

Common next steps

• D-2 — after admission to a degree programme. A change of status application with its own documents.
• D-10 (job seeker) — for graduates seeking employment, subject to its own criteria including a points assessment.
• E-series work visas — requires a job offer meeting the relevant category’s criteria.

Practical points on arrival

• Register your address and obtain your alien registration card within the required period after entry
• Keep your address current with immigration — a change of address must be reported
• Enrol in health insurance as required for your status

Never state or assume that an extension will be granted. Each application is assessed on its own record, and past approvals do not guarantee the next one.