Foreigners are frequently caught off guard by how strict Korea is about drink-driving (음주운전, eumju-unjeon). The legal blood-alcohol limit is only 0.03%, which can be reached after a single drink and may still register the morning after a heavy night. Worse, for a foreign national the consequences do not stop at a fine or a suspended license — a conviction can put your right to stay in Korea at risk.
The 0.03% threshold and the penalty tiers
Under the Road Traffic Act of Korea (도로교통법, Doro-gyotong-beop), penalties escalate with your blood-alcohol concentration (BAC). In broad terms, a BAC from 0.03% up to 0.08% typically brings license suspension and criminal punishment, while 0.08% and above generally brings license revocation and heavier punishment, including the possibility of imprisonment as well as a fine. Refusing a breath test is itself an offense. Repeat offenses are treated far more severely, and causing an accident or injury while intoxicated raises the stakes further. Exact figures depend on the current law and your facts, so do not rely on numbers from your home country.
Why deportation is the real risk for foreigners
A DUI conviction is a criminal matter, and under Korea's Immigration Act (출입국관리법, Chulipguk-gwalli-beop) a foreign national who commits a crime may face a separate immigration review. Depending on the severity and any prior record, this can lead to a refusal of visa extension, cancellation of status, or deportation, sometimes with a re-entry ban. The criminal court and the immigration authorities make separate decisions, so even a seemingly minor sentence such as a modest fine can still carry heavy immigration consequences that surprise people who assumed paying the fine ended the matter.
What to do if you are stopped or charged
- Cooperate with the lawful breath test; refusal is a separate, serious offense.
- Do not argue or make excuses at the roadside, which can be recorded against you.
- Note whether and how the BAC was measured, including any blood test, as procedure can matter.
- Avoid driving again on a suspended or revoked license, which compounds the case badly.
- Consult a licensed Korean attorney quickly, because the criminal outcome shapes the immigration outcome.
Handling both fronts together
Because the criminal penalty and the immigration review are linked, the goal is to manage both at once. A lighter or well-handled criminal disposition can reduce the immigration fallout, while ignoring the criminal side can make deportation far more likely. Presenting mitigating circumstances early, before the disposition is fixed, often matters more than arguing about status afterward.
These cases are handled by a licensed Korean attorney, Sangbin Min of Daejin Law Firm, who can address the Road Traffic Act charge and the immigration exposure as one connected problem. If you are a foreigner facing a DUI in Korea, an early consultation gives you the best chance to protect both your record and your residency.