F-5 visa — permanent residence in Korea: a complete 2026 guide to the review categories

1. What F-5 is and how it differs from naturalization

F-5 is the status of a permanent resident — a foreigner who keeps their original nationality but is permitted to reside and work in Korea without a time limit and without renewing a visa. This is entirely different from naturalization (귀화): naturalization means giving up your original nationality to become a Korean citizen (except in certain cases where dual nationality may be retained under the regulations).

An F-5 holder cannot vote and does not hold a Korean passport; in return, they do not need permission each time they change jobs or change their type of business — a freedom that most work visas (the E-series) and the investment visa (D-8) do not provide. In practice this means an F-5 holder can move between employers, switch industries, or restructure a company without first applying for a new visa or seeking immigration approval, which removes a constant administrative burden that holders of temporary status must live with.

2. The main F-5 categories for Vietnamese nationals

F-5 has more than 20 sub-categories (F-5-1 through F-5-26). Below are the categories that are the most practical and the most common for Vietnamese nationals and Vietnamese investors.

① F-5-1 — general permanent residence (residence ≥5 years)

For foreigners who have resided legally and continuously in Korea for 5 years or more on visas such as D-8, E-7, F-6, and many others. This is the most universal path, since it is open to almost any long-term resident regardless of the visa they originally held.

• Period of residence: ≥5 continuous years (long periods spent abroad are not counted)
• Income: ≥ the per-capita GNI of the previous year (1인당 GNI) as published by the Bank of Korea (the income of a spouse, parents, or children in the same household may be combined — but your own income must reach at least 50%). ⚠️ GNI 2026 = 52.41 million KRW/year (≈ 4.37 million KRW/month).
• Korean-language ability: completion of KIIP (사회통합프로그램) or an appropriate level of TOPIK, and passing the 종합평가 (comprehensive evaluation)
• Criminal record: no criminal record in Korea or in the country of origin

② F-5-16 — points-based permanent residence (from F-2-7)

For people who have held the F-2-7 visa (points-based residence) continuously for 3 years or more and maintained ≥80 points throughout that time.

• It is a superior path for E-7 and D-8 holders who want to reach F-5 faster than 5 years (you only need 3 years on F-2-7 plus the points accumulated in the earlier period)
• Points are calculated from: education (up to 35 points), income (up to 30 points), age (up to 20 points), Korean language (up to 20 points), and supplementary items

③ F-5-5 — large-investor permanent residence (from D-8)

For D-8 investors whose scale of investment and hiring meets the requirements:

• Invest ≥500,000 USD (≈ 500 million KRW) into a business in Korea and maintain it continuously
• Employ ≥5 full-time Korean workers for at least 6 consecutive months
• No specific minimum number of years of residence is required — assessment is based on the actual level of investment and hiring
• ⚠️ The employees must be Korean citizens enrolled in all 4 mandatory social insurances

④ F-5-24 — technology-startup permanent residence (from D-8-4)

For founders of a technology startup (D-8-4/OASIS):

• Reside ≥3 years on D-8-4 status
• Have raised investment or hold capital of ≥300 million KRW (~225,000 USD)
• Employ ≥2 full-time Korean workers for at least 6 months

⑤ F-5-2 — marriage-based permanent residence (from F-6)

For foreigners whose spouse is a Korean citizen:

• Hold the F-6 visa (marriage) and live together in fact ≥2 years
• Your own income or that of your Korean spouse ≥ the average GNI
• Korean language: TOPIK or completion of KIIP
• ⚠️ In the event of divorce: you may still keep F-5 if the Korean spouse was the party at fault, or if you are raising a shared child

⑥ Other exceptional-talent and special categories

• F-5-9/F-5-10/F-5-15: holders of a doctorate, a master's degree, or technicians in high-technology fields — currently working at a domestic enterprise
• F-5-11: people with outstanding achievements in science, management, education, culture, the arts, or sports
• F-5-6: overseas Koreans (compatriots abroad) who have resided continuously on F-4 for ≥2 years

3. Common requirements when applying for F-5

Beyond the requirements specific to each sub-category, almost all F-5 applications must meet 4 baseline conditions:

• A valid period of residence according to the sub-category (3–5 years depending on the category)
• Income sufficient to support yourself — for F-5-1 and F-5-2: ≥ the per-capita average GNI (2026: ~52.41 million KRW/year); for F-5-16: maintaining good income throughout the 3 years on F-2
• Korean-language ability (KIIP / TOPIK / 종합평가) — some special categories are exempt or have relaxed requirements
• No criminal record and compliance with the law both in Korea and in the country of origin

In addition, you must submit: the alien registration card (외국인등록증), a valid passport, ID photos, proof of the period of residence, documents showing income and tax payment, criminal-record certificates from both inside and outside Korea, and the result of a health examination.

4. Documents & processing time

The processing time ranges from 2 to 6 months depending on the sub-category and how complete the file is. Submit the application at the Immigration Office (출입국·외국인청) for your place of residence, or through the HiKorea system (hikorea.go.kr) if online submission is permitted. Some applications require an in-person interview.

5. Benefits once F-5 is granted

An F-5 holder enjoys benefits that are far superior to those of temporary residence statuses:

• Residence for an unlimited period — there is no visa expiry date and no need to renew the residence status
• Freedom to work — work in any occupation without needing separate permission
• Freedom to do business — change the type of business or open additional outlets without affecting your residence status
• Legal stability — no worry of deportation due to losing a job or losing an investment contract (except for violations of the law)

⚠️ Important note — the residence card (ARC) must still be renewed periodically: although F-5 has no visa expiry, the alien registration card (외국인등록증) still needs to be renewed periodically at the immigration authority. Holding F-5 does not mean the ARC card is automatically valid forever — the expiry date on the card needs to be checked and the card renewed on time.

6. Re-entry and the risk of losing F-5

This is a point that many people overlook:

• Short-term departure (under 1 year): generally has no effect, but each case should be checked
• Long-term departure (≥1 year) without a re-entry permit (재입국허가증): F-5 may be revoked. Before a long departure, you must obtain a 재입국허가 at the immigration authority
• Serious violations of the law: F-5 may be cancelled and the person deported
• F-5-16 (from F-2-7): a separate caution — too many departures during the 3 years on F-2 may affect continuity

7. How does F-5 differ from naturalization (귀화)?

Many people confuse permanent residence with naturalization. A quick comparison:

• Nationality — F-5 (permanent residence): kept as is; 귀화 (naturalization): given up, or dual nationality (special conditions)
• Passport — F-5: your original passport; 귀화: a Korean passport
• Voting — F-5: no; 귀화: yes
• Requirements — F-5: complex, varying by category; 귀화: stricter, usually requiring 5+ years of residence and a special examination
• Common among Vietnamese — F-5: high; 귀화: lower