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법률칼럼Legal InsightForeigner2026. 07. 01

[Immigration Lawyer Seoul] Immigration Act Violations and Criminal Penalties for Foreign Nationals

"I Didn't Realize My Visa Had Already Expired..." "A few days have already passed... Will I run into problems at the air

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"I Didn't Realize My Visa Had Already Expired..."

"A few days have already passed... Will I run into problems at the airport?"

 

Many people think, "It's only been a few days—it should be fine." However, once they stand before an immigration officer, they often realize the seriousness of the situation. This concern becomes even greater if they plan to re-enter Korea in the future or are preparing to change their immigration status.

 

In many cases, individuals assume that overstaying by only a few days will not be a problem, only to find themselves facing potential Immigration Act violations, criminal penalties, and even an Immigration Offender Review, depending on the circumstances.

 

Because Immigration Act violation cases can be highly complex, we recommend seeking assistance from Majung Law Firm's immigration lawyers, who have extensive experience handling cases involving foreign nationals and can develop a tailored response strategy for your situation.

 


 

1. Understanding the Nature of an Immigration Act Violation

2. Three Common Types of Immigration Violations

3. Criminal Penalties for Foreign Nationals: Distinguishing Between Honest Mistakes and Criminal Violations

4. Immigration Act Violations: Documents and Attitude Often Determine the Outcome

 


 

1. Understanding the Nature of an Immigration Act Violation

 

When an Immigration Act issue arises, many foreign nationals become overwhelmed because they are unsure whether they are facing an administrative issue or a matter that could lead to criminal punishment.

 

Simply being discovered is frightening enough, and because most people are unfamiliar with the legal procedures, they often wonder

📌 Will I have to appear before immigration authorities?

📌 Will I only receive a fine?

📌 Or could this result in deportation?

 

From the very beginning, it is important to determine whether the matter could lead to criminal penalties for a foreign national.

 

The answer depends on factors such as whether the issue involves only an overstay or also includes activities beyond the authorized immigration status. If the case becomes subject to an Immigration Offender Review, additional consequences, including entry restrictions, may also follow.

 

Developing an appropriate response strategy from the earliest stage can determine the overall direction of the case. Ignoring the issue or delaying action may ultimately result in unexpected disadvantages.

 

 

 

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2. Three Common Types of Immigration Violations

 

The following are the three most common types of Immigration Act violations.

 

① Overstaying the Authorized Period of Stay

This refers to remaining in Korea after a visa or authorized period of stay has expired.

A brief overstay resulting from an honest mistake may sometimes be treated more leniently.

However, if the overstay continues for an extended period or occurs repeatedly, it may result in criminal penalties.

 

② Unauthorized Employment or Income-Generating Activities

This occurs when a foreign national, such as a student visa holder, works for extended periods or engages in income-generating activities without obtaining the required permission.

Even part-time work may constitute a violation if it falls outside the scope of the individual's authorized immigration status.

 

③ Activities Inconsistent with the Granted Immigration Status

This applies when a person entered Korea under an employment visa but is actually working in a different occupation or is no longer employed.

Such cases may become subject to an Immigration Offender Review and could later result in restrictions on re-entering Korea.

 

Under the Immigration Act, these violations may result in criminal penalties of up to three years' imprisonment or a fine of up to KRW 30 million. Depending on the circumstances, administrative measures such as fines, Departure Orders, or deportation may also be imposed.

 

Rather than assuming the matter is insignificant, it is important to accurately determine which category applies and prepare an appropriate response.

 

 

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3. Criminal Penalties for Foreign Nationals: Distinguishing Between Honest Mistakes and Criminal Violations

 

Not every Immigration Act violation results in criminal punishment. However, immigration authorities generally consider several important factors when determining whether criminal penalties should apply.

 

These factors are also reviewed during the Immigration Offender Review, making it important to organize them carefully from the beginning.

 

① Intent

▶ Was the overstay simply the result of a mistake regarding the expiration date, or did the individual knowingly continue violating the regulations?

 

② Length and Timing

▶ How much time passed after the authorized period expired, and what actions, if any, were taken during that period?

 

③ Activities During the Period of Stay

▶ Did the individual earn income or engage in outside activities while remaining in Korea?

 

④ Previous Immigration History

▶ Has the individual committed similar violations before, or is there a pattern of repeated violations?

 

For example, even where two individuals have both overstayed their visas, the appropriate response may differ significantly depending on whether the overstay lasted only a few days due to an honest mistake or continued for several months while engaging in unauthorized employment.

 

Accordingly, it is not enough simply to calculate the length of the overstay. It is equally important to clearly explain what activities occurred during that period and the personal circumstances surrounding the violation. Failing to do so may lead to unnecessary disadvantages. 

 

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4. Immigration Act Violations: Documents and Attitude Often Determine the Outcome

 

When an Immigration Act violation occurs, the outcome often depends on the available records and the individual's response.

 

Immigration authorities commonly review the following

 

01

Records of entry into and departure from Korea

02

Whether the individual's actual activities matched their immigration status (such as payroll records or bank transactions)

03

Previous applications to extend or change immigration status

04

The individual's attitude after becoming aware of the violation (whether they attempted to conceal the issue or voluntarily addressed it)

 

Simply saying, "I didn't know," is generally insufficient. Instead, it is important to explain why the violation occurred, what personal circumstances existed, and what actions were taken, supported by appropriate documentation.

 

Particularly where the case may lead to criminal penalties or an Immigration Offender Review, the way these records are organized can significantly affect the outcome.

 

For this reason, responding based on experience rather than guesswork is extremely important, and working with an immigration lawyer who has practical experience handling these cases is highly recommended.

 

Although Immigration Act violations may appear to be simple administrative matters, the circumstances surrounding the violation and the way the case is handled may ultimately lead to both administrative measures and criminal proceedings.

 

For foreign nationals in particular, criminal penalties and Immigration Offender Reviews are often considered simultaneously, making an appropriate response from the earliest stage extremely important.

 

COMMENT

Drawing upon our practical experience handling both immigration matters and criminal cases involving foreign nationals, we will help you organize your situation while minimizing unnecessary disadvantages.

 

Whether your situation is simply an honest mistake or constitutes a legal violation, the first step is to accurately organize the facts and supporting documentation. Understanding what documents should be submitted and how they should be prepared is essential from the very beginning. 

 

 

Multilingual consultation available in English and Chinese.  

 

Professional interpreters assist from the first consultation to the conclusion of the case.  

 

Offices in Seoul, Daejeon, Busan, Daegu, and Gwangju

 

Don’t face the legal system alone. Let Majung fight for you!

 

 

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