When can I apply for an F-4 (overseas Korean) stay extension, and what documents do I need?

You can apply for an F-4 stay extension from 4 months before your expiry date until the expiry date. If you apply before it expires, you can stay while you wait, even if the result comes late.

Just prepare these documents

• Basic documents (application form, passport, Alien Registration Card, fee)
• Proof of Korean language ability: it is used to decide the length of stay you get
• Proof of residence: such as a lease contract

Application steps

1. Apply online at HiKorea (hikorea.go.kr), or visit the immigration office (출입국·외국인청, including branch offices and field offices) that covers your address.
2. Pay the fee. A regular extension costs 60,000 KRW. Online, you can pay by card, bank transfer, or mobile phone payment. In person, you usually pay with revenue stamps.
3. Wait for the result. A regular case usually takes 15 days. A case that needs an investigation takes up to 60 days.

⚠️ Things to watch out for

• Depending on your Korean language documents, you can get a stay period of up to 3 years.
• If you have a record of breaking the law, your extension may be limited.
• Region-specific overseas Koreans (F-4-R) in the population decline area pilot program have different documents and conditions. At extension, the office checks that you really live in the same pilot area (actual residence). You submit proof of residence, such as a lease contract or a dormitory residence confirmation.
• If you have unpaid health insurance premiums, your approved period may be cut to 6 months or less. Pay in advance and keep the receipt.
• Working in a restricted job, such as simple labor, may count against your extension.

If you are not sure which Korean language document you have, check with HiKorea or the Immigration Contact Center (외국인종합안내센터, 1345).