Japanese Labor Law: A Guide for Expatriates

Published on April 22, 2026 and written by Cyril Jarnias

Navigating Japanese labor law can be complex, especially for expatriates who must juggle unique cultural norms and specific legal obligations. This article explores the essential protections offered by Japanese legislation, such as fair working conditions and job security, while detailing the specific legal obligations expatriates must adhere to for a rewarding and compliant professional experience. We provide an indispensable guide to understanding how to leverage these regulations to ensure not only compliance with local laws but also to optimize your professional experience within this dynamic nation.

Understanding Employment Contracts in Japan

Main Categories of Employment Contracts in Japan and Their Characteristics

In Japan, the most common types of employment contracts include:

• Full-time employees (permanent employment)
• Part-time employees or part-time workers (reduced or temporary employment)
• Temporary agency workers (indirect, temporary, or permanent employment)

In addition to these, there are various other forms such as fixed-term contracts or subcontracting.

Employment Type	Employment Duration	Employer	Compensation System	Social Security	Dismissal Rules
Full-time Employee	Permanent	Employing Company	Monthly Salary, etc.	Enrollment with the employing company	According to the Labor Standards Act
Part-time/Temporary Worker	Temporary/Indefinite	Employing Company	Hourly Wage	Enrollment based on conditions	According to the Labor Standards Act and contract content
Temporary Agency Worker	Temporary/Permanent	Temporary Staffing Agency	Hourly Wage, etc.	Enrollment with the staffing agency	According to the Labor Standards Act and the Temporary Staffing Services Law

Main Differences and Regulatory Content

• Full-time Employee:
  • No defined employment term (in principle, lifetime employment)
  • Benefits such as promotions or bonuses are also generous
  • Full-time social security coverage applies
• Part-time/Temporary Worker:
  • Short working hours, often temporary contracts
  • There is no clear legal distinction between “part-time” and “temporary worker,” sharing a predefined short working time
  • Social security applies under certain conditions
• Temporary Agency Worker:
  • Employment relationship with the staffing agency, but the actual workplace is the client company (two-tier structure)
  • The staffing agency manages social security and salary payments

All workers have minimum rights and obligations under the Labor Standards Act and related laws. Furthermore, with the introduction of the “Equal Work, Equal Pay” rule in 2020, unreasonable differences in treatment are prohibited.

Probation Period

Even during the probation period, rights and obligations as a worker are almost the same as after official hiring. In case of dismissal, objective rationality and a socially acceptable reason are required. Its maximum duration is generally about six months.

Dismissal Conditions

• Without objective rationality and a sufficiently acceptable reason in society, unilateral dismissal is prohibited.
• In the case of fixed-term contracts, special circumstances (e.g., serious violations) are required for early termination except at expiration.
• Dismissal notice: principle of 30 days’ prior notice or payment of one month’s average salary

Social Protection: Obligations and Rights of Employers and Employees

All full-time employees, as well as non-permanent employees meeting certain criteria, must be covered by:

• Health Insurance
• Employees’ Pension Insurance
• Unemployment Insurance
• Workers’ Accident Compensation Insurance

Part-time or task-based workers may also be subject to it based on certain criteria, such as working more than 20 hours per week with a certain income.

Specific Points and Examples of Attention for Foreign Nationals

• Obtaining and Maintaining Residence Status: Indispensable compliance with visa conditions by occupation. For example, a visa for “Engineering, Human Knowledge, International Business” for technical work, or a Specified Skilled Worker visa for simple labor.
• Verification of Documents Before Hiring: In Japan, written documents are valued more than verbal agreements. Ensure you receive and verify documents specifying “contract duration,” “job description,” “salary,” “workplace,” “leave.”
• Social Security Number (My Number): Can be obtained after resident registration, is indispensable for both private and public procedures.
• Possibility of Using Consultation Centers: In case of problems, there are municipal offices or non-governmental organizations that can offer assistance in languages other than Japanese.
• Side Job Prohibition Clause: Depending on the type of work visa, side employment may be prohibited. Furthermore, only activities authorized under the regulations are permitted.

Thus, in Japan, regardless of status, fundamental human rights guarantee minimum treatment. Moreover, with the expansion of foreign personnel acceptance, support and information disclosure are strengthening, so do not hesitate to consult specialized organizations in case of doubt.

Paid Leave for Expatriates Working in Japan

Current Legislation on Paid Leave in Japan

According to Japan’s Labor Standards Act, all workers (full-time, part-time, temporary agency workers, etc.) meeting certain conditions can obtain paid leave (annual paid leave). The conditions stipulate having worked continuously for six months since the day of hiring and having been present for at least 80% of the working days during that period.

Once these conditions are met, 10 days are granted initially, then the number of granted days increases each year, up to a maximum of 20 days per year. Part-time workers are also granted a proportional number of days based on weekly or annual working days and hours. The statute of limitations for paid leave is two years.

Reference Period and Calculation of Taken Leave Days

• First grant: 6 months after joining the company
• Subsequently: each year
• For full-time employees (for example):
  • 0.5 years of service: 10 days
  • 1.5 years of service: 11 days
  • 2.5 years of service: 12 days
  • 3.5 years of service: 14 days
  • 4.5 years of service: 16 days
  • 5.5 years of service: 18 days
  • 6.5 years of service or more: 20 days

Some companies may apply their own practices, such as “grant every year in X month,” but in that case, they cannot go below the legally set minimum.

Differences Between Local Employees and Expatriates

In principle, expatriates who have signed an employment contract in Japan are subject to the same employment and paid leave rules as local employees. Unless a special provision or specific overseas assignment regulation clearly specifies a difference, there is no distinction regarding paid leave.

However, in complex cases such as recruitment at headquarters or secondment by a foreign subsidiary, it is necessary to verify which employment regulation or law prevails, according to the contract content. Furthermore, foreign companies may have a dual management system respecting both home country rules and Japanese laws.

Eligibility Conditions and Procedures for Expatriates

• Foreign expatriates officially hired by an entity or subsidiary in Japan are entitled to paid leave as soon as they meet the conditions “6 months of continuous work after hiring” and “80% work attendance.”
• Even in cases of dual roles with headquarters and coexistence of foreign salaries, if a direct employment relationship and chain of command with the Japanese branch exist, Japanese laws normally apply.
• Generally, the procedure for requesting paid leave and the management method are the same as for other employees, but additional elements, such as reporting obligations to headquarters or an adjustment process, may be required.
• Furthermore, when updating visas (residence status), submission of actual work records may be requested.

General Points in Corporate Practices

• To improve the paid leave utilization rate, measures such as planned allocation or recommendation of grouped leave in summer/winter exist.
• Since the law revision, it is mandatory for workers with 10 days of annual paid leave to use at least 5.
• A maximum carryover of 2 years before expiration = possibility to retain about 35 days, but taking a large number of days may influence promotion evaluation.
• The possibility of taking half-days or leave by hourly units depends on each company’s work regulations.

Cultural Aspects and Examples of Impact on Expatriates

In Japanese society, due to the psychological barrier to long leave and the importance placed on “consideration for others” and “teamwork,” although the number of paid leave days is often high, the utilization rate remains low. Unlike Western countries where “sick leave” is considered an absence, in Japan, leave is more often used for personal reasons than for illness.

This is why expatriates from foreign or Western companies may be more inclined to use it, while some report using very little before returning home out of “consideration.”

These circumstances imply that expatriates stationed in Japan must strive to plan reasonably, both for themselves and for the team as a whole, and to communicate effectively, which requires a balance between “understanding the system + respecting local norms.”

Social Protection for Expatriates in Japan

Overview of the Social Security System for Expatriates in Japan

Employer Obligations and Social Insurance Enrollment Conditions:

• In Japan, the principle of “Universal Health Coverage” requires that all persons residing in Japan must enroll in public health insurance (health insurance) and pension insurance.
• Companies must correctly enroll their employees in the following four systems: workers’ accident compensation insurance, unemployment insurance, health and long-term care insurance, and pension insurance.
• When a company hires employees for the first time or becomes a corporation, it must notify the competent authority, then deduct the employees’ share from salaries and pay it together with the employer’s share.

Insurance Type	Enrollment Conditions	Employer Obligations
Health and Long-term Care Insurance	In principle, all residents	Declaration and payment for employees
Pension Insurance	Corporations or individual businesses above a certain size	Same
Unemployment and Workers’ Accident Compensation Insurance	All employees under certain conditions (e.g., more than 20 hours per week)	Same

Expatriates and Social Security: Enrollment and Application

• Expatriates sent abroad by a Japanese company, as long as their employment relationship with the company in Japan continues, are, in principle, covered by Japanese social security (pension and health insurance, etc.).
• If, due to working abroad, a person is removed from the resident register, they are no longer obligated to enroll in National Health Insurance or National Pension Insurance. However, voluntary enrollment remains possible to increase future benefits. Premiums can be paid from a Japanese bank account even with voluntary enrollment.

Double Contribution Issues with Local Legislation and Alternative Solutions

• In some cases, the local legislation of the assignment country requires mandatory enrollment in the local social security system, which can lead to double contributions (e.g., for pensions) on both sides.
• In countries without a bilateral agreement, there is a risk of double payment. In countries that have signed an agreement, an adjustment is possible: for temporary assignments (up to 5 years), only Japanese contributions are due; beyond that or for permanent assignment, only local contributions are due.

Alternatives:

• Subscribe to private insurance for medical care/travel abroad/disability
• Continue using the public medical care/pension systems of the home country (paying attention to the level of public service and coverage offered)

Rights and Responsibilities of the Expatriate and Their Family / Tax Implications

• Rights: During the period covered by a social security agreement, it is possible to receive pension benefits from both countries or from only one; possibility of obtaining pension rights including for periods of voluntary enrollment.
• Responsibilities: Correct declaration and payment of premiums when mandatory.
• Tax Implications: Social security contributions are generally not taxable. They may affect the calculation of salary income deductions.

Necessary Procedures in Japan for Expatriates of Foreign Nationality

• If planning to stay more than three months and possessing certain qualifications, mandatory enrollment in National Health Insurance.
• If employer-provided health insurance is available, it takes priority. Exceptions for short-term visas, etc.

Category	Key Points
Employment with Domestic Base	If ongoing, Japanese principles apply (need for internal clarification)
Avoiding Double Contribution	Request a certificate from the competent authority of the signed agreement
Local Response	Long-term assignments: Transition to a local scheme or parallel scheme

Main bilateral agreements with Western countries and Japan:

• Purpose: ① Prevent double contributions; ② Support for establishing pension rights through totalization.
• Mechanism: Exemption for temporary assignments up to 5 years, after that or following a change to permanent residence → application of local legislation.
• Currently, Japan has signed agreements with over 23 countries, most of which are already in effect.

Summary of this section:

• Even during assignment, if affiliated with a Japanese entity, maintenance of requirements like pension insurance
• In regions without an agreement, high risk of double costs
• Possibilities to explore complementary private solutions
• Potential to use advantageous tax measures, as well as a necessity to be informed of the current state of international coordination

These points must be considered by both accounting and human resources departments. It is recommended to consult specialists for detailed assessments of each case.