Employment Contract in Korea: Required Contents, Penalties & Foreign Worker Rights

Why You Must Always Sign an Employment Contract

An employment contract is far more than a formality. Article 17 of the Labor Standards Act (근로기준법 제17조) requires employers to specify key working conditions in writing and deliver a copy to the worker at the time the contract is concluded. Covered conditions include wages, scheduled working hours, holidays, and annual paid leave (연차유급휴가). This obligation applies equally to full-time employees, part-time workers (아르바이트), short-term contract workers, and daily workers.

Note for foreign workers: The statutory minimums below apply regardless of what your contract says — contractual terms cannot fall below these legal floors.

Mandatory Contents of an Employment Contract

Under Article 17 of the Labor Standards Act (근로기준법 제17조) and Article 8 of its Enforcement Decree (시행령 제8조), the following items must be specified in writing:

  1. Wages – component items, calculation method, and payment method
  2. Scheduled working hours (소정근로시간) – start time, end time, and break time
  3. Holidays – including the weekly holiday (주휴일)
  4. Annual paid leave (연차유급휴가)
  5. Place of work and duties to be performed
  6. Contract period (for fixed-term workers)

For fixed-term and part-time workers, working days and daily working hours must also be specified (Article 17 of the Act on the Protection of Fixed-Term and Part-Time Workers / 기간제법 제17조).

Penalties for Failure to Prepare or Deliver a Contract

If an employer fails to prepare or deliver an employment contract, a fine of up to KRW 500,000 is imposed (Article 114 of the Labor Standards Act / 근로기준법 제114조). This is not a mere administrative penalty — it constitutes criminal punishment, so employers cannot treat this lightly.

From the worker's side, the employment relationship itself is still valid even without a written contract, but proving the agreed wages, working hours, and other terms in a dispute becomes extremely difficult. Starting work based on a verbal promise alone is therefore risky.

Common Mistakes and Points to Watch

① Clauses Below the Minimum Wage Are Void
Even if a wage below the minimum wage is written into the contract, that clause is automatically void and the statutory minimum wage applies instead (Article 6 of the Minimum Wage Act / 최저임금법 제6조).

② Beware of Abusive Comprehensive Wage Agreements (포괄임금제)
A comprehensive wage arrangement that includes a fixed overtime allowance still requires additional pay if actual overtime hours exceed the scope covered by the arrangement. The Supreme Court has held that a comprehensive wage agreement is valid only when it does not disadvantage the worker (Supreme Court Decision 2016다48785, etc. / 대법원 2016다48785 등).

③ Limits on Wage Reduction During the Probationary Period
Within the first 3 months of a probationary period, wages may be reduced to as low as 90% of the minimum wage. However, this reduction does not apply to fixed-term contracts of less than 1 year (Article 5(2) of the Minimum Wage Act / 최저임금법 제5조 제2항).

④ Electronic Employment Contracts Are Permitted
Under the Electronic Documents Act (전자문서법), an electronic employment contract bearing an electronic signature is recognized as a valid written delivery — provided it is in a form that the worker can view and save.

What to Do If You Never Received a Contract

If an employer refuses to provide a written contract, you may file a complaint with the Ministry of Employment and Labor Customer Consultation Center (고용노동부 고객상담센터, dial 1350, no area code required) or with the competent Regional Employment and Labor Office (관할 지방고용노동청). Once a complaint is filed, the employer will receive a corrective order; failure to comply can lead to criminal punishment.

Check Your Contract on Bylaw (바이로)

Wondering how much of the salary written in your contract you will actually take home? Use the Bylaw (workbylaw.com) take-home pay calculator — it automatically factors in the four major social insurance premiums and income tax to show your monthly net pay. If you need to verify whether your contract terms are lawful, try the AI contract review feature as well.

This article is for informational purposes only and does not constitute legal advice. For specific cases, consult a certified labor attorney (노무사) or lawyer.