Effective March 2025: New Social Insurance Premium Rates in Japan

As part of ongoing efforts to adapt to economic conditions and healthcare demands, insurance associations across Japan have revised their Social Insurance premium rates. These changes will come into effect from March 2025, and will be reflected in the April payroll cycle.

One important consideration is that health insurance premium rates continue to vary by prefecture. This means employers operating across multiple regions should take special care to ensure local compliance.

For businesses and HR teams navigating these changes, we recommend consulting the official websites of the relevant health insurance associations for the most accurate and updated rate information. Key associations include:

• Kyokai Kenpo

• TJK Kenko Hoken Kumiai

• Tokyo Denki Kenko Hoken Kumiai

• Nihon Jidosha Buhin Kogyo Kenko Hoken Kumiai

At i-Admin, we’re committed to helping you stay compliant with evolving statutory regulations in every market you operate in. If you have questions or need assistance updating your payroll processes, our team is ready to support you.