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Pathway

South Korean Citizenship After Residence

South Korea Citizenship
Pathway overview

At a glance

South Korean naturalization is an application-based route with distinct general, facilitated, marriage, and special categories. General naturalization requires at least five continuous years of lawful residence and a status that permits permanent residence; shorter rules apply only to defined categories.

Type
Citizenship after residence
Residence fit
Applicants using the five-year general route or a defined shorter facilitated, marriage, or special category
Core requirements
The selected category's residence, status, conduct, support, language, and basic-knowledge rules
What to know
Usually requires already living in South Korea
What it gives
After approval, the applicant acquires Korean nationality when the required national oath is taken and the naturalization certificate is issued.
Main limit
Naturalization is not automatic after five years, after marriage, or after completing the official integration program.

Summary

South Korean naturalization is a discretionary citizenship process for a foreign national who fits one of the categories in the Nationality Act. Living in Korea for a certain number of years does not automatically create citizenship. The applicant must file, meet the requirements for the chosen category, pass the required review, take the national oath, and receive a naturalization certificate.

Korea has three broad groups:

The category matters because residence and livelihood rules differ. General naturalization now requires both at least five continuous years of residence and a status of stay that allows permanent residence in Korea. A person should not describe the route simply as “citizenship after five years.”

Pathway fit check

Eligibility

General naturalization requires all of the following:

General facilitated naturalization normally requires at least three continuous years of residence plus one of these defined links:

Marriage-based facilitated naturalization has its own residence rules. A person who remains married to a Korean spouse can generally use either two continuous years of residence in Korea during the marriage, or at least three years of marriage plus one continuous year of residence in Korea. The Act also has limited provisions for someone whose marriage could not continue because of the spouse's death, disappearance, or another reason not attributable to the applicant, and for a person raising a minor child born of the marriage. These are evidence-heavy exceptions, not automatic waivers.

Special naturalization can cover a person whose father or mother is currently Korean, except an adult adoptee, and a person formally recognized for special merit or outstanding ability likely to contribute to Korea's national interest. A strong career alone is not enough; merit and talent cases go through the statutory recommendation and Nationality Deliberation Committee process.

Naturalization normally includes a comprehensive assessment and an interview. Exemptions can apply based on age, KIIP completion, recent assessment results, special merit, outstanding talent, or another officially recognized reason. KIIP's nationality course can satisfy or waive parts of the assessment process, but merely planning to study does not meet the requirement.

What This Route Allows

After approval, the applicant acquires Korean nationality when the required national oath is taken and the naturalization certificate is issued. The new citizen can then complete family-registration and resident-registration steps and apply for Korean identity and passport documents.

A naturalized citizen no longer needs immigration permission to live or work in Korea. Citizenship also carries civic and legal duties.

Foreign-nationality treatment must be planned before filing. The general rule requires a person who still holds another nationality to renounce it within one year after acquiring Korean nationality. Defined applicants can instead pledge not to exercise the foreign nationality in Korea. Current law includes some marriage migrants who remain married, special-merit and outstanding-talent cases, and people who cannot reasonably complete renunciation because of foreign law. The pledge is not available to every naturalized citizen.

What This Route Is Not

Naturalization is not automatic after five years, after marriage, or after passing KIIP. The residence category, lawful-continuous-residence calculation, conduct, support, language and society knowledge, assessment, interview, and security review all matter.

It is not the correct route for someone who already acquired Korean nationality at birth. That person needs nationality confirmation and registration. It is also usually not the correct label for a former Korean national seeking to regain citizenship; nationality restoration is a separate process with separate restrictions, including military-evasion concerns.

Naturalization does not always permit dual nationality. Do not make assumptions about keeping a current passport without checking which Article 10 option applies to the exact category.

Next Steps

  1. Identify the exact category: general, three-year facilitated, marriage-based, or special naturalization.
  2. For general naturalization, confirm both five continuous years and a status that permits permanent residence. Do not rely only on entry stamps or calendar time.
  3. For a facilitated or marriage case, map the statutory family link and residence period and gather the relevant Korean and foreign civil records.
  4. Obtain immigration residence history, tax records, employment or asset evidence, and documents addressing good conduct.
  5. Review the comprehensive assessment and interview requirements. Register through Soci-Net for KIIP or the assessment where appropriate.
  6. Ask the local Korea Immigration Service office which documents and authentication are required for your category.
  7. Before filing, determine whether you must renounce your current nationality or may use a pledge of non-exercise, and check the consequences under the other country's law.
  8. If approved, complete the oath, certificate, nationality, family-registration, resident-registration, and passport steps within the required periods.
Compare your options

Other routes in South Korea.

Sources