1. Structure of Japan’s Public Pension System
All registered residents in Japan aged 20 to 59 are statutory participants in the public pension system. The National Pension (国民年金) forms the basic tier, while salaried employees are additionally enrolled in Employees' Pension Insurance (厚生年金) through their employer.
2. Enrollment Procedures and Basic Pension Number Management
Your pension records are tracked using a 10-digit Basic Pension Number (基礎年金番号). Salaried employees are enrolled by their employer, whereas self-employed residents or students handle National Pension procedures at their local municipal office.
3. Contribution Exemption and Payment Postponement Applications
Residents facing financial difficulty or low income during specific periods may apply for contribution exemptions or payment postponements. Note that exemptions require formal review and approval by the Japan Pension Service and are not granted automatically.
4. Social Security Agreements and Period Totalization
Japan has entered into bilateral social security agreements with numerous countries to prevent dual coverage and allow period totalization. Whether your contribution period in Japan can be combined with your home country pension depends on specific treaty terms.
5. Lump-Sum Withdrawal Payment (Datsutai Ichijikin) Overview
Non-Japanese nationals leaving Japan who satisfy contribution period conditions may apply for a Lump-Sum Withdrawal Payment (脱退一時金), generally within two years after departure. Note that receiving this payment invalidates all previous Japanese pension coverage periods used for that calculation.
6. Checking Records and Official Pension Office Consultation
Regularly check your contribution statements and consult a local Japan Pension Service branch office or official helpline for individual questions regarding totalization, exemptions, or departure filings.
EDITORIAL NOTE & DRAFT STATUS
This information is reviewed periodically. If service or product links are added in the future, they will be published only after availability and editorial checks.

