Navigating the New Guidelines on Retirement Benefits for Part-Time Workers in Japan

As of October 1, 2026, a significant amendment to the Equal Pay for Equal Work guidelines will come into effect in Japan. This change, introduced by the Claire Human Resource Development Association, addresses the pressing concern of retirement benefits for non-regular employees such as part-time workers. With this reform, employers must now consider extending retirement benefits, traditionally reserved for full-time employees, to their part-time counterparts as well.

Understanding the Change

The crux of the amendment focuses on the purpose of retirement benefits, which is now deemed as "post-payment for labor compensation." Consequently, companies need to ensure equitable payment of retirement allowances to part-time and fixed-term workers. However, many small to medium-sized enterprises are struggling to meet these new demands. Common challenges include a lack of financial resources to implement retirement benefit schemes and the complexities arising from the differing work hours of part-timers. For instance, how can a company fairly design a retirement benefits system when some employees work four days a week while others work just one?

A Practical Solution: Pre-Paid Hourly Retirement Benefits

To tackle this intricate issue, the Claire Human Resource Development Association proposes an innovative approach: the prepayment of retirement benefits as an enhancement to hourly wages. If full-time employees typically contribute an average of 10,000 yen per month toward their retirement fund, dividing this by a standard workload of 160 hours results in about 60 yen per hour. By calculating the responsibility of part-time workers as 50% that of their full-time peers, companies can add an extra 30 yen to the hourly wage of part-time employees as a