“KOYOHOKEN TEKIYO JIGYOUSHO BANGO” in Japanese Immigration Filings
the “KOYOHOKEN TEKIYO JIGYOUSHO BANGO, means Employment Insurance Establishment Number” in Japanese Immigration Filings
In Japanese immigration practice, one of the most frequently requested employer identifiers—yet one of the least understood outside Japan—is the Employment Insurance Establishment Number, a unique 11-digit code (e.g., 1234-567890-1) assigned to businesses enrolled in Japan’s Employment Insurance system.
Purpose of the Employment Insurance System
Employment Insurance is a mandatory public insurance program designed to provide income support and assist in re-employment when workers become unemployed or are placed on leave. As a general rule, any employer who hires even one employee meeting the following criteria must enroll:
- 20+ hours of work per week
- Expected employment period of 31+ days
- Not classified as a student (exceptions omitted here)
Failure to enroll despite a legal obligation may result in denial of a foreign worker’s visa application, as it signals non-compliance with Japanese labor law.
Why the Number Matters in Immigration
The Immigration Services Agency links this number to track the hiring and separation history of foreign workers in work visa application process. For this reason, the Employment Insurance Establishment Number is a mandatory data field in work-related immigration applications, and omission or inaccuracy can delay or jeopardize approval.
Where Employers Can Find the Number
The Employment Insurance Establishment Number can be verified in the following documents:
- Tekiyō Jigyōsho Daichō
(Employer copy of the Employment Insurance Establishment Notification issued when the company first registered) - Kakuin Tsūchisho
(Notification of Eligibility Acquisition for Employment Insurance issued when an employee is enrolled)


HR departments unfamiliar with this number should request it from their labor/social-insurance specialist or payroll administrator; in virtually every case, they will be able to locate it immediately.
Professional Consultant
Masakazu Murai
Immigration Consultant & Financial Advisor with 18 years of investment banking experience at Mitsubishi UFJ Morgan Stanley, advising over 500 entrepreneurs and executives.
- Gyoseishoshi Immigration Lawyer
- CMA (Japanese Certified Member Analyst)
- CFP (Certified Financial Planner)
- MBA in Entrepreneurship
