The Millo Blog Editorial Team reviewed official sources from the Korea Immigration Service and Easy Law on August 14, 2026.
To maintain legal status in South Korea, foreigners staying for more than 90 days must complete their foreign residency registration and updates through the Korea Immigration Service. Initial registration must be completed within 90 days of entry, while any subsequent changes to your personal details or home address must be reported within 15 days. Failure to adhere to these deadlines can lead to administrative fines or penalties.
When Must You Register as a Foreign Resident?
If your visa allows you to stay in South Korea for more than 90 days, you are legally required to register your residency. This registration process must be completed at the local immigration office that has jurisdiction over your place of residence within 90 days from the date you entered the country.
What Information is Collected During Registration?
The immigration authorities maintain a comprehensive record of registered foreigners. The following information is typically required for your registration record:
| Category | Details Registered |
|---|---|
| Personal Identity | Full name, gender, date of birth, and nationality. |
| Travel Documents | Passport number, issuance date, and expiration date. |
| Professional/Academic | Place of employment, job position/duties, or school enrollment status. |
| Residential Info | Address in your home country and your current address in Korea. |
| Visa Status | Visa category (status of stay), period of stay, entry date, and port of entry. |
| Other | Details of accompanying family members and business registration numbers (if applicable). |
Required Documentation for Initial Registration
While requirements vary by visa type, most applicants must provide a completed application form, a passport, one passport-sized photo (3.5cm x 4.5cm), and a document proving their place of residence. For those on student visas, specific requirements apply:
- D-2 (Study) Visa: Certificate of enrollment and a health certificate.
- D-4 (General Training) Visa: Certificate of enrollment and a health certificate (for those at university-affiliated language centers or primary/secondary schools). Those in other general training programs must provide documents related to the establishment of the training institution.
During the registration process, you will be required to provide biometric information, including fingerprints, facial scans, iris scans, and palm vein data. Please note that refusing to provide this biometric data may result in the immigration office denying requests for extensions of your period of stay.
How to Manage Changes to Your Residency Details
Maintaining accurate records is a legal obligation. If the information you provided during your initial foreign residency registration and updates changes, you must notify the authorities promptly.
Reporting Changes to Personal Information
If there are changes to your registered details—such as a change in your name, a new passport issuance, or a change in your employer or job position—you must report these updates within 15 days of the change occurring.
Reporting a Change of Address
Moving to a new home is one of the most common triggers for a residency update. You must report your new address within 15 days of moving. This can be done at:
- The local immigration office.
- The administrative center (community center/Dong office) in your new neighborhood.
- Online via the HiKorea portal.
Example: If a foreign resident moves from an apartment in Seoul to a house in Gyeonggi-do on September 1st, they must report this change to the local administrative center or via HiKorea no later than September 16th to avoid a fine.
What Are the Methods for Reporting Updates?
The Korea Immigration Service provides both digital and in-person channels to ensure that residency updates are handled efficiently.
Online Reporting via HiKorea
The most convenient way to handle residency updates is through the Korea Immigration Service portal (HiKorea). Online reporting is available for several common updates, including changes of address and some personal detail modifications, eliminating the need to visit an office in person.
In-Person Visits
For more complex changes or for those who prefer in-person service, visits to the jurisdictional immigration office or local administrative centers are available. It is highly recommended to book an appointment online via HiKorea before visiting an immigration office to avoid long wait times.
What Happens If I Fail to Report Changes?
The South Korean government strictly enforces residency reporting laws to maintain public safety and administrative accuracy. Failing to register within the 90-day window or failing to report changes (including address updates) within 15 days can result in financial penalties. Depending on the severity and duration of the non-compliance, these fines can be significant and may potentially impact future visa extensions or changes of status.
Frequently Asked Questions
What if I am under 17 years old?
Foreigners under the age of 17 may not be issued a physical Alien Registration Card (ARC) immediately. However, once you reach the age of 17, you must apply for the issuance of your registration card within 90 days at the immigration office governing your place of residence.
What is a Mobile Residence Card?
In addition to the physical card, the government may issue a Mobile Residence Card. This is an encrypted version of your registration card installed on a mobile device and carries the same legal effect as the physical card.
What should I do if I lose my registration card?
If you lose your physical Alien Registration Card, you must apply for a reissue through the Korea Immigration Service immediately to ensure you have valid proof of your residency status.
Your Practical Next Steps
To ensure your residency status remains valid, follow these steps:
- Check your calendar: If you entered Korea recently, ensure you are within your first 90 days for initial registration.
- Gather documents: Prepare your passport, photo, and proof of residence (such as a housing lease agreement).
- Book an appointment: Use the Korea Immigration Service website to schedule a visit if you cannot complete the process online.
- Set a 15-day reminder: Whenever you move house or change your passport, mark a deadline 15 days from that date to complete your report.
Utilizing Modern Verification Services
The Korea Immigration Service has introduced updated systems to simplify administrative tasks and financial access for registered foreign residents.
Personal Signature Verification
Historically, a personal seal (dojang) was often required for official transactions in Korea. However, a Personal Signature Verification System is now available for foreign nationals. This allows your registered signature to carry the same legal weight as a personal seal certificate, streamlining the process when signing legal documents or opening official accounts.
Residence Card Verification Service
To facilitate easier access to essential services, the Residence Card Verification Service has been expanded to include the non-banking sector. This enables registered residents to verify their identity more conveniently when accessing various financial services and administrative systems outside of traditional banks.
Nuances of Residency Reporting
While the 15-day reporting window is a general rule, it is important to identify the specific triggers that constitute a “change in registration details” according to immigration law:
- Employment and Position: You must report not only a change in your employer but also any change in your specific job position or assigned duties.
- Passport Updates: If you renew your passport or it is re-issued for any reason, you must update the passport number, issuance date, and expiration date in your records.
- Academic Status: For students, any change in enrollment status or a move to a different educational institution must be reported.
Legal Implications of Biometric Data
The collection of biometric information—which includes fingerprints, facial scans, iris scans, and palm vein data—is a mandatory requirement of the registration process. It is critical to comply with this request; under the Immigration Act, the head of the local immigration office may legally refuse to grant permits for the extension of your period of stay if you refuse to provide this biometric data.
Official Sources
- Korea Immigration Service (출입국·외국인정책본부)
- Easy Law: Foreign Student Registration and Reporting (찾기쉬운 생활법령정보)