Admission and school records are incomplete
The admission certificate, school status, and program details need to support the exact study route.
Manual basis: Study-status manuals rely on school-issued admission and program documents.
Study Visa
Korea D-4 VisaGeneral Training Visa
D-4 Visa Korea (Language Study) — Complete 2025 Guide: requirements, work rights, extension rules, and how to convert to a D-2 student visa for university admission.
Reviewed July 2026 — sourced from official Korean government portals Learn how we verify accuracy
Written by James Chae — Co-Founder, Expert Sapiens
Korean Licensed Administrative Attorney (행정사)Reg. No. 220-06-06463 · 대한행정사회Licensed Realtor · Korea
Platform expertise: Immigration consulting & visa services · Reviewed July 2026
Reviewed by licensed immigration attorneys on Expert Sapiens
Licensed Immigration AttorneysAILA Members
Review & source basis
Reviewed against
James Chae, 행정사 (Korean Licensed Administrative Attorney). License No. 220-06-06463 · 대한행정사회 (Korean Administrative Agents Association). Reviewed against the HiKorea 사증·체류업무 자격별 안내 매뉴얼 and cross-checked with Ministry of Justice issuances.
Last reviewed
July 14, 2026
Source references
HiKorea — Korean visa & residency manual
Issuance-manual sections covering D-4 language and training visa issuance requirements.
Ministry of Justice Immigration Policy Bureau
Stay-manual sections covering D-4 registration, extension, attendance/compliance, and in-country filing rules.
Filing caution
Requirements can change by nationality, local immigration office, and filing channel. Confirm exact requirements with HiKorea, the responsible Korean consulate, or a licensed immigration specialist before filing.
Important manual-based filing notes
These points are drawn from Korea immigration manuals and recurring review patterns for higher-risk visa categories.
HiKorea — Korean visa & residency manual: Issuance-manual sections on D-4 language and training visa issuance requirements.
Ministry of Justice Immigration Policy Bureau: Stay-manual sections on D-4 registration, extension, attendance, and in-country filing rules.
- Attendance and school compliance matter heavily on D-4. A language-school problem can become an immigration problem faster than many applicants expect.
- Work rights are limited and should not be assumed from general student-visa advice. D-4 has narrower practical flexibility than D-2.
- Medical or TB-related certificates should be filed in the exact requested form. Opened or non-designated documents are a recurring technical failure point.
- If a stay filing is pending in Korea, overseas departure can still damage the application.
Stay Duration
Up to 6 months per initial visa issuance (extendable by semester; extensions denied if attendance falls below 70%)
Processing
1–3 weeks
Visa Fee
$74.63 (status change) / $44.78 (extension)
Fees and processing times sourced from HiKorea & Ministry of Justice. Figures are updated periodically but may change — verify before submitting.
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Eligibility fit
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Overview
The D-4 visa covers training and language study programs that are not full degree programs. Most searchers mean D-4-1: Korean language study at an eligible university language institute. D-4-7 is different — it is a narrower foreign-language training route reviewed on the institution and program type, not a generic language-academy visa. Other sub-codes include D-4-2 (corporate graduate trainee), D-4-3 (K-12 foreign student), D-4-5 (Korean culinary training), and D-4-6 (accredited private education institutions).
For D-4 approval, the school or training provider matters as much as the applicant. Immigration checks whether the institution can sponsor the relevant subtype, whether the admission or training plan is credible, whether tuition and living-cost funds are documented, and whether the applicant's education history and study purpose are coherent.
The most common route is D-4-1 — the standard path for foreigners who want to study Korean before entering a degree program or working. Important: As of October 2025, D-4-6 (private education) requirements were significantly tightened — sponsoring institutions must meet stricter standards, educational subcontracting is prohibited, and KIS conducts regular on-site inspections.
D-4 visa Korea: language study, training, and D-4-7 differences
The D-4 visa is for non-degree study or training, not a normal work visa. Most applicants use D-4-1 for Korean language programs at eligible institutions, while D-4-7 is a narrower foreign-language training route. The deciding facts are the institution, program type, funding proof, attendance plan, and whether a later move to D-2 or another status is realistic.
Confirm the exact D-4 subtype
D-4-1 language study, D-4-6 private-education training, D-4-7 foreign-language training, and corporate training routes are reviewed differently. A generic school acceptance letter is not enough if the institution is not eligible for that subtype.
Treat attendance and funding as extension issues
D-4 cases can be approved at entry but fail later if attendance, tuition, living-cost proof, or school-status records become weak before extension.
Do not use D-4 as a work shortcut
Part-time or outside activity rules are separate from the visa itself. If the real purpose is employment, compare E-7, D-10, or another work route before filing.
Who is the D-4 visa for?
Foreign nationals enrolled in Korean language programs at accredited university language institutes (어학원), or in vocational/corporate training programs. Commonly used by those planning to apply for D-2 university admission or who want to learn Korean before working.
Eligibility requirements
Enrolled in a language institute attached to an accredited university (D-4-1) — general private academies (학원) are NOT eligible for D-4-1; D-4-6 covers accredited private education but has stricter requirements since October 2025
High school diploma or equivalent (minimum 12 years of education) required for D-4-1; D-4-7 foreign language track allows high school students
Proof of financial sufficiency covering tuition + living expenses for the full study period
Education credentials verified via apostille or consular authentication
Delay and refusal risks
What can go wrong with D-4?
Student-status delays usually come from school eligibility, finances, admissions records, or study/work compliance.
Financial proof does not match the filing route
Weak balance records, unclear sponsor support, or missing scholarship/tuition proof can create delay.
Manual basis: Study-status manuals include financial ability and tuition/stay-expense evidence.
Prior violations or unresolved compliance issues
Prior overstays, fines, unauthorized work, tax delinquency, or criminal history can trigger closer review even when the basic visa category looks correct.
Manual basis: The stay manuals repeatedly reference status restrictions, law-violation review, criminal-record checks, tax/payment issues, and status-change limits.
Source note
These are practical risk factors for General Training Visa, not a complete list of legal refusal grounds. Final review can vary by nationality, filing channel, consulate, immigration office, and case facts.
Required documents
- 1.
Valid passport + visa application form + passport photo
- 2.
Standard admission certificate issued by university president/dean (표준입학허가서)
- 3.
Final academic records — apostille or Korean consular authentication required
- 4.
Financial proof: bank balance statement (issued within 30 days) or scholarship certificate, covering tuition + living expenses for study period
- 5.
Family relationship certificate (if submitting parents' bank statement)
- 6.
Training plan including class schedule, instructor roster, and facility details
How to apply — step by step
- 1
Enroll in a Korean language program
Apply to a university language institute (e.g., Yonsei Korean Language Institute, Seoul National University Language Education Institute) or an accredited vocational school.
- 2
Apply for D-4 visa
Submit your application at the Korean consulate with your enrollment certificate and supporting documents.
- 3
Arrive and register
Register at immigration within 90 days of arrival. Maintain attendance above 70% — immigration monitors this and extensions are denied if you fall below threshold.
- 4
Extend or change status
You may extend the D-4 for additional semesters or change to D-2 once accepted into a degree program.
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Alien Registration Card (ARC)
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HiKorea
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Visa Extension (Stay Period Extension)
A visa extension — officially called a 'stay period extension' (체류기간 연장) in Korean immigration law — allows a foreigner to legally remain in Korea beyond the expiry date on their current visa or ARC without leaving the country.
Visa Process
Status of Sojourn Change (체류자격 변경)
A status of sojourn change allows a foreigner already in South Korea to switch from one visa category to another without leaving the country — for example, from a D-2 student visa to an E-7 skilled worker visa upon graduation and employment.
D-4 visa — frequently asked questions
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D-4 subtypes
View all subtypes →Specific tracks under the D-4 category. Pick the one that matches your situation for track-level documents, criteria, and filing notes.
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