Employment Law Update in South Korea: Q4 2025

South Korea employment law 2025 entered a new phase in the fourth quarter, with legislative amendments, landmark court rulings, and revised administrative guidance reshaping the obligations of employers across the country. Businesses operating in South Korea - whether domestic conglomerates or foreign-invested enterprises - face tighter compliance requirements, expanded worker protections, and higher penalties for non-compliance. This guide covers the most consequential changes: revised working-hour frameworks, strengthened protections for non-standard workers, updated dismissal and severance rules, new workplace safety obligations, and the practical steps employers should take to remain compliant.

The Labour Standards Act (근로기준법) remains the cornerstone of employment regulation in South Korea, and Q4 brought meaningful amendments to its provisions on working hours and rest periods. The Ministry of Employment and Labour (MOEL) finalised guidance that clarifies how the 52-hour weekly cap applies to specific industries that had previously operated under exemptions, including certain IT services, research and development units, and media production companies. Employers in those sectors can no longer rely on informal arrangements to exceed the statutory ceiling without formal selective working-hour agreements approved by a written labour-management agreement.

A non-obvious requirement that has caught several foreign-invested companies off guard is the mandatory written consent procedure for any modification to selective or flexible working-hour systems. Under the revised administrative guidance, a simple internal policy update is insufficient. Employers must obtain documented consent from either a majority trade union or, where no such union exists, a representative elected by a majority of workers. Failure to follow this procedure renders the modified arrangement void, exposing the employer to overtime liability calculated at the standard 1.5x premium rate.

The amendments also tighten the definition of "work time" to include certain preparatory and wrap-up activities that were previously treated as non-compensable. In practice, this affects industries where workers must don protective equipment, attend mandatory pre-shift briefings, or complete post-shift documentation. Employers should audit their time-recording systems to ensure these activities are captured and compensated correctly.

One of the most significant developments in Q4 concerns the expansion of protections for platform-based and non-standard workers. South Korea';s Act on the Protection of Specific Employment Type Workers (특수형태근로종사자 보호법) was extended to cover additional categories of gig and platform workers, including certain delivery, logistics, and digital service providers who had previously fallen outside its scope.

Under the expanded framework, platform operators are now required to provide written contracts specifying the scope of work, remuneration calculation method, and termination conditions. This obligation mirrors, in substance, the written employment contract requirement that applies to standard employees under the Labour Standards Act. A common mistake among platform companies is treating these new written-contract obligations as a formality. In practice, the contract terms directly affect whether a worker can claim unfair dismissal protections or industrial accident compensation under the Industrial Accident Compensation Insurance Act (산업재해보상보험법).

The National Labour Relations Commission (NLRC) issued several decisions in Q4 affirming that platform workers who meet a functional dependency test - assessed by looking at exclusivity, work method control, and economic reliance - may be reclassified as employees for the purpose of unfair dismissal claims. Two illustrative scenarios demonstrate the practical stakes. First, a logistics platform that engaged delivery riders under service agreements found that the NLRC treated those riders as employees after examining the degree of operational control the platform exercised over routes and schedules. Second, a software development firm that used a freelance platform to engage long-term developers on an exclusive basis faced a similar reclassification finding, resulting in retroactive severance liability. Both cases underscore the importance of structuring platform engagements with genuine operational independence.

South Korea';s rules on dismissal are among the most protective in the Asia-Pacific region, and Q4 developments reinforced that position. The Labour Standards Act requires employers to provide at least 30 days'; advance notice before dismissal, or pay in lieu. Recent MOEL guidance clarified that this obligation applies equally to probationary employees who have completed three months of service - a threshold that many foreign employers misread as a general probationary exemption.

For businesses with five or more employees, dismissal must be based on "justifiable cause" (정당한 이유). Q4 case law from the Seoul Administrative Court and the NLRC refined what constitutes justifiable cause in the context of performance-based dismissals. The decisions consistently held that employers must demonstrate a documented performance improvement process, including written warnings, a reasonable improvement period, and evidence that the employee was given a genuine opportunity to meet the required standard. Employers who skip any of these steps risk an unfair dismissal finding, which typically results in reinstatement or payment of back wages for the period of dismissal.

Severance pay obligations under the Employee Retirement Benefit Security Act (근로자퇴직급여 보장법) remain unchanged in their basic structure - one month';s average wage per year of continuous service - but Q4 guidance addressed two recurring compliance gaps. First, MOEL clarified that "average wage" for severance calculation must include regular bonuses, certain allowances, and other fixed payments that form part of ordinary remuneration, not merely base salary. Many employers, particularly smaller foreign-invested companies, have historically calculated severance on base salary alone, creating significant retroactive liability. Second, the guidance confirmed that part-time workers employed for more than 15 hours per week and for more than four weeks continuously are entitled to severance on a pro-rata basis, a point that is frequently overlooked in workforce planning.

If your business is navigating dismissal procedures or restructuring its workforce in South Korea, our team can help structure the process correctly the first time. Contact us at info@vlolawfirm.com.

The Serious Accidents Punishment Act (중대재해처벌법), which imposes criminal liability on business operators and senior managers for fatal or serious workplace accidents, continued to generate significant compliance activity in Q4. The Act';s scope was extended to cover businesses with fewer than 50 employees, a category that had previously benefited from a delayed implementation period. This extension brought a large number of small and medium-sized enterprises into the Act';s compliance framework for the first time.

Under the Act, a "business operator" - which includes the CEO and other senior executives with operational responsibility - faces criminal penalties of up to one year';s imprisonment or a fine if a worker dies or suffers a serious injury due to the operator';s failure to implement required safety management measures. The required measures include establishing a safety and health management system, appointing a dedicated safety officer where thresholds are met, conducting regular hazard assessments, and maintaining documented evidence of all safety activities.

A practical scenario that illustrates the compliance challenge: a mid-sized manufacturing company with 35 employees that had not previously been subject to the Act';s full requirements found, after the extension took effect, that it needed to appoint a part-time safety officer, revise its internal safety manual, and implement a formal incident reporting procedure - all within a compressed timeframe. The cost of establishing these systems is not trivial for smaller businesses, but the criminal and financial exposure from non-compliance is substantially higher. MOEL has indicated that it will conduct targeted inspections of newly covered businesses, so the risk of enforcement is real and near-term.

Employers should also note that the Act operates alongside the Occupational Safety and Health Act (산업안전보건법), which imposes separate administrative obligations including hazard communication, worker health examinations, and equipment safety standards. The two regimes overlap in some areas but are enforced by different mechanisms: the Occupational Safety and Health Act primarily through administrative fines, the Serious Accidents Punishment Act through criminal prosecution.

Q4 saw a notable increase in enforcement activity related to gender pay equity and age discrimination, two areas where South Korean law has historically been strong on paper but inconsistently enforced in practice. The Equal Employment Opportunity and Work-Family Balance Assistance Act (남녀고용평등과 일·가정 양립 지원에 관한 법률) prohibits wage discrimination on the basis of gender for work of equal value. Recent MOEL enforcement actions focused on companies that maintained separate pay scales for male and female employees performing substantially similar roles, even where the pay scales were formally gender-neutral but produced systematically different outcomes.

The enforcement trend reflects a broader policy direction: MOEL has indicated that it will prioritise equal pay audits for companies with more than 300 employees, and that it expects employers to be able to demonstrate, with documented evidence, that pay differentials are based on objective, job-related criteria. Employers who cannot produce such documentation face administrative penalties and potential civil liability.

Age discrimination protections under the Prohibition of Age Discrimination in Employment and Aged Employment Promotion Act (고용상 연령차별금지 및 고령자고용촉진에 관한 법률) were also the subject of Q4 NLRC decisions. The Commission found against several employers who had set mandatory retirement ages below 60, which remains the statutory minimum. One decision involved a financial services firm that had set a de facto retirement age of 58 through a combination of performance review criteria and promotion policies that systematically disadvantaged older workers. The NLRC treated this as constructive age discrimination, resulting in reinstatement orders and compensation awards.

A common mistake among foreign-invested companies is assuming that practices lawful in their home jurisdiction - such as early retirement incentive programmes or age-based salary reduction schemes - are permissible in South Korea. In practice, any arrangement that effectively forces workers out before the statutory retirement age requires careful legal review.

For assistance with equal pay audits, anti-discrimination compliance, or responding to NLRC proceedings, contact our team at info@vlolawfirm.com.

Given the volume of changes in Q4, employers operating in South Korea should treat the following as immediate compliance priorities.

Working-hour systems require a full audit. Employers should verify that any selective or flexible working-hour arrangements are supported by valid written labour-management agreements, that time-recording systems capture all compensable work time, and that overtime premiums are calculated correctly.

Platform and non-standard worker arrangements should be reviewed against the expanded written-contract requirements and the functional dependency test applied by the NLRC. Contracts that do not reflect genuine operational independence carry reclassification risk.

Dismissal and severance calculations should be stress-tested. Employers should confirm that their severance calculation methodology includes all fixed remuneration components, that part-time workers above the statutory threshold are covered, and that any performance-based dismissal process includes documented warnings and improvement periods.

Safety management systems for businesses newly covered by the Serious Accidents Punishment Act should be established without delay. This includes appointing a safety officer where required, conducting a hazard assessment, and documenting all safety activities.

Pay equity documentation should be prepared or updated. Employers with more than 300 employees should be ready to demonstrate that pay differentials are based on objective criteria, in anticipation of MOEL audits.

Does the 52-hour weekly cap apply to all companies in South Korea?

The 52-hour weekly cap under the Labour Standards Act applies to all businesses with five or more employees. Businesses with fewer than five employees are subject to a modified regime with different thresholds. Certain industries and roles have historically benefited from exemptions or special arrangements, but Q4 guidance narrowed those exemptions significantly. Employers who rely on selective or flexible working-hour systems must ensure those systems are supported by valid written agreements. Non-compliant arrangements expose employers to overtime liability at the statutory premium rate, and MOEL has indicated it will increase inspection activity in sectors that previously operated informally outside the cap.

How is severance pay calculated, and what are the most common errors?

Severance pay under the Employee Retirement Benefit Security Act is calculated at one month';s average wage per year of continuous service. The most common error is calculating average wage on base salary alone, excluding regular bonuses, fixed allowances, and other components of ordinary remuneration. A second common error is failing to provide severance to part-time workers who work more than 15 hours per week and more than four weeks continuously. Both errors can result in significant retroactive liability, particularly for companies that have employed workers for many years. Employers should review their payroll systems and severance calculation methodology against the Q4 MOEL guidance to identify and correct any gaps before they become the subject of a labour complaint.

What are the criminal risks under the Serious Accidents Punishment Act for small businesses?

The Serious Accidents Punishment Act now applies to businesses with fewer than 50 employees following the Q4 extension of its scope. Business operators - including CEOs and senior managers with operational responsibility - face criminal penalties of up to one year';s imprisonment or a fine if a worker dies or suffers a serious injury due to the operator';s failure to implement required safety management measures. The Act does not require intent; negligent failure to establish a compliant safety management system is sufficient for liability. Smaller businesses that have not previously been subject to the Act';s full requirements should prioritise establishing a documented safety management system, conducting a hazard assessment, and appointing a safety officer where the relevant thresholds are met.

Q4 brought a dense set of changes to South Korea';s employment law framework, touching working hours, platform worker protections, dismissal procedures, workplace safety, and anti-discrimination enforcement. Employers who act promptly to audit their arrangements and update their documentation will be best positioned to avoid the significant penalties and criminal exposure that non-compliance now carries. The direction of policy is clear: South Korea is expanding worker protections and tightening enforcement, and businesses that treat compliance as a back-office function rather than a strategic priority face growing risk.

VLO Law Firms advises international clients on employment law matters in South Korea. We can assist with labour compliance audits, drafting and reviewing employment contracts and labour-management agreements, advising on dismissal procedures and severance calculations, and representing clients before the National Labour Relations Commission and MOEL. To request a consultation, contact: info@vlolawfirm.com