Employee discipline is one of the most frequent sources of labor disputes in Korea. Even where misconduct or underperformance appears clear, employers in Korea often lose cases before the Labor Relations Commission and the Korean courts due to procedural defects, insufficient documentation, lack of proactivity, and disproportionate sanctions. Korean labor law places strict limits on an employer’s disciplinary authority, and compliance requires more than simply identifying employee fault. For the basics of terminating an employee in Korea, please see: Termination of an Employee in Korea. For an article on the definition of an “Employee” for protections under the Korean Labor Standards Act, please see: Definition of Employee under the LSA.
This article outlines best practices for disciplining employees in Korea, based on the Korean Labor Standards Act, Korean Ministry of Employment and Labor (MOEL) guidance, and judicial and administrative practice. Please note that you must first review the Employment Rules before any disciplinary action against an employee. Not following the company’s employment rules will, in most cases, lead a court or labor board to determine that the employer’s actions are invalid.
For additional articles on Korean Employment Law, see: IPG Legal’s Employment & Labor Law Archive.
“Justifiable Cause” as the Governing Standard Under Korean Law
Under the Korean Labor Standards Act, an employer may not impose disciplinary measures, including warnings, suspensions, wage reductions, demotions, or dismissals, without “justifiable cause.” While Korean law expressly refers to dismissal, Korean courts and the Labor Relations Commissions consistently apply a similar “justifiable cause” analysis to disciplinary actions.
In practice, this means:
- The misconduct or performance issue must be factually established;
- The employee must have been reasonably able to foresee disciplinary consequences; and
- The sanction must be reasonable in light of all circumstances.
Importance of Written Rules of Employment in Korea
For workplaces with 10 or more employees, Korean law requires the preparation and reporting of Rules of Employment (취업규칙). These rules regarding discipline typically define:
- Types of misconduct
- Standards of workplace behavior
- Disciplinary measures and procedures
When reviewing disciplinary actions, adjudicators in Korea commonly ask whether the employee could reasonably understand:
- That the conduct in question was prohibited; and
- That it could result in the particular disciplinary measure imposed.
Discipline based on unwritten standards, unpublished policies, or ad hoc rules is frequently invalidated.
Proportionality of Discipline under Korean Law
Korean labor law strongly adheres to the principle of proportionality. Even where misconduct is proven, discipline may be deemed unlawful if it is excessive relative to the specific circumstances.
Factors typically considered in the determination include:
- Severity and frequency of the misconduct
- Intentional conduct versus negligence
- Actual or potential harm to the company
- Length of service and prior disciplinary history
- The employee’s role or position (e.g., managerial responsibility)
Immediate dismissal is generally only upheld for serious misconduct (such as violence, embezzlement, or severe breach of trust). For most cases, progressive discipline is necessary to establish the disciplinary action.
Consistency and Equal Treatment under Korean Law
Employers must apply discipline consistently. If similar misconduct resulted in lighter discipline for other employees, imposing a harsher sanction without a clear, documented justification can render the discipline unfair.
Best practice includes:
- Maintaining internal records of past disciplinary actions
- Explaining any differences in treatment based on objective factors (e.g., repeated violations, supervisory role)
Inconsistency is one of the most common reasons disciplinary actions are overturned by the Korean courts.
Procedural Fairness: Opportunity to Be Heard in Korea
Procedural defects are a leading cause of employer losses in Korea.
Before imposing discipline, employers should:
- Notify the employee of the alleged misconduct
- Provide a meaningful opportunity to submit an explanation or defense
- Review the employee’s response before making a final decision
While the law does not mandate a formal hearing in every case, some form of opportunity to be heard is strongly expected, particularly for unpaid suspensions or dismissals. Make sure you follow the formalities noted in the Employment Rules. If these formalities are not met, the disciplinary action shall likely be invalidated.
Employer’s Burden of Proof and Documentation in Korea
In disciplinary disputes, the burden of proof rests on the employer. Unsupported allegations or conclusory statements are insufficient.
Effective documentation includes:
- Contemporaneous records of incidents
- Emails, messages, or system logs
- Witness statements
- Performance evaluations
- Warning notices
- Written disciplinary decision explaining the reasoning
Disciplinary Dismissals in Korea
Disciplinary dismissal (징계해고) is subject to strict scrutiny by the courts and at labor boards. Employers in Korea must, in most cases, demonstrate:
- Serious misconduct
- Clear and reliable evidence
- Proportionality
- Procedural fairness
- Written notice specifying concrete reasons for dismissal
Providing 30 days’ notice or pay in lieu does not cure the absence of justifiable cause. If dismissal is deemed unfair, reinstatement and back pay may be ordered.
Korean Retaliation Risks
Discipline imposed shortly after protected activities, such as harassment complaints, whistleblowing, or lawful leave, raises heightened scrutiny. Even justified discipline may be presumed retaliatory if timing and documentation are poor.
In such cases, employers in Korea should ensure that:
- Investigations are thorough
- Decision-making is well documented
- The basis for discipline is clearly independent of the protected activity
Conclusion
In Korea, employee discipline is not merely a managerial decision; it is a legal process. Employers who act hastily, fail to document properly, or skip procedural steps often lose disputes despite legitimate concerns about employee conduct. Careful preparation, proportionality, and procedural fairness are essential. In higher-risk cases, particularly suspensions and terminations, legal review by a proactive lawyer is strongly advisable.
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by Sean Hayes
Sean Hayes is the first non-Korean attorney to have worked for the Korean court system (Constitutional Court of Korea) and one of the first non-Koreans to be a regular member of a Korean law faculty. He is ranked among the Top Attorneys in Korea, and his law firm is ranked among the top dispute resolution law firms.
You may schedule an initial free consultation with our Attorney at: Schedule a Call with an Attorney in Korea to discuss establishing or expanding your business into Korea.
IPG Legal regularly advises foreign companies on Korean employment law, including disciplinary actions, terminations, and proceedings before the Labor Relations Commission and the Korean courts. The firm has extensive experience guiding employers through high-risk disciplinary matters while minimizing exposure to reinstatement and back-pay liability. IPG Legal is rated a top dispute resolution law firm in Korea.