Efficiency is key at the airport. While the SeS gates are intuitive, knowing the “small print”—like what happens when you change your passport—can save you from a stressful surprise at the gate. Here is your step-by-step manual for 2026.
1. Important: Check Before You Stand in Line
Before heading to the SeS gate, keep these official rules in mind to ensure a smooth transition:
- Registration-Free Era: Since March 2017, registration is no longer required for Korean citizens (17+) and registered foreigners (17+).
- Validity Period:
- Koreans: Valid until your passport expires.
- Foreigners: Valid for 5 years or until your passport/stay period expires (whichever is shorter).
- Changing Your Passport:
- Koreans (19+): You can use SeS immediately after getting a new passport without re-registering.
- Registered Foreigners (17+): You must report your new passport to the Immigration Office first; then you can use the gates.
- The “First Entry” Rule: If you changed your passport while overseas, you cannot use the automated gate for your first entry into Korea with that new passport.
- Entry Stamps: By default, no stamp is placed in your passport when using SeS. If you need one for administrative reasons, you can request it from an immigration officer nearby.
2. Step-by-Step: Using the SeS Gate (30 Seconds)
Once you reach the gate, follow these 5 simple steps:
- Scan Your Passport: Place the photo/information page of your passport face-down on the reader.
- Enter the Gate: Once the first automatic door opens, step inside the gate.
- Fingerprint Recognition: Place your registered finger (usually the index finger) on the scanner. The screen will indicate which finger was registered.
- Facial Recognition: Look directly at the camera for a facial scan. (Note: This step may be omitted depending on the specific gate model).
- Exit: Once the second door opens, walk out. Your immigration check is complete!
3. Who Still Needs Prior Registration?
While most adults are exempt, registration at a center is mandatory for:
- Minors: Aged 7 to 14 (Must be accompanied by a legal guardian).
- Teenagers: Aged 14 to 17.
- Special Cases: If your fingerprint quality is poor or if your data (name, DOB) in the system doesn’t match your passport.