Extensions usually get delayed for three reasons: missing address evidence, certificates requested too late, and an unchecked appointment requirement. Lay down the common documents first, then handle the part that differs by where you belong.
Common to everyone
The Integrated Application Form (Form No. 34), your passport, your residence card, and proof of residence. A lease in your own name or a dormitory confirmation serves as address evidence.
If the lease belongs to someone else, ask which additional accommodation documents are required. This is where most people get stopped.
If you belong to a school
On D-2 or D-4-1, start with enrollment evidence, then ask your international office whether transcripts, tuition payment records, or financial proof are needed.
- Language trainees — attendance certificates may be added
- Thesis-stage students — completion documents and an advisor's recommendation may be required
If you belong to an employer
Build the list around your employment contract and the company's business registration. Depending on visa category and employment arrangement, corporate registration, a guarantor form, tax records, or an employment certificate or dispatch order may also be required.
Changing or adding a workplace is a different procedure from an extension. Check which one your case is before you prepare for the wrong one.
Before you submit
- Your stay expiry and passport validity — a short passport makes for a short extension
- HiKorea's visa-specific guide or 1345 for current documents, fees, deadlines, appointment requirements and online eligibility
- Request school or company certificates early enough for them to be issued
Confirm your own final list through official guidance. The full checklist by type is on the WeBring blog.