By: HUB’s EB Global Benefits Team

What is it about?

Tax-favored corporate defined benefit programs are very popular in Japan. The contribution limits are based on reasonability guided via actuarial valuations and other soft considerations. No set numerical limits exist. However, employees cannot voluntarily contribute to these programs.

On the other hand, defined contribution and hybrid defined benefit/defined contribution pension plan models in Japan have historically been subject to a number of limitations not found in defined benefit plans. The most important factors are statutory caps on company and employee contributions, as well as operating constraints, such as minimum numbers of covered staff — typically 300 employees, which are required by pension vendors such as plan administrators as a condition to take on the business. Individual tax-favored pension solutions through iDeCo (an individual pension platform) have also existed, but these are organized by the employees, are subject to contribution caps and are only rarely used by multinational employers in Japan.

The above factors have made it hard for many multinational companies to provide adequate levels of retirement benefit supplementation through externally funded, tax-effective approaches. Most smaller employers have adopted unfunded Retirement Allowance Plans which are exposed to the risk of company insolvency, are tax inefficient and represent an administrative burden for the plan sponsor as the record-keeping is usually done internally.

In response to structural factors such as population aging and a shrinking workforce, plus the operating challenges described above, Japan has started a comprehensive pension reform to provide a more responsive framework in which employees can build up a meaningful retirement nest egg with significant support from the employer. Some of the elements of the reform are effective in 2026, while others will become effective in 2027 and beyond. Below is a quick summary of the more important developments:

  • Prior to April 2026, employee voluntary contributions under DC plans could not exceed employer contributions. This rule has now been abolished, allowing employees to increase their contributions, within allowable limits, particularly in cases where employer contributions are relatively low.
  • From January 2027, the monthly contribution limit to corporate DC plans will rise from JPY 55,000 to JPY 62,000 (approx. USD 348 to USD 393).
  • For employees who also participate in corporate defined benefit (DB) plans, the limit will shift to a combined framework, where DC contributions are capped at JPY 62,000 minus the contribution value of the DB accrual portion.
  • The reform is particularly impactful for individual DC plans (iDeCo). From 2027, employees without access to employer-sponsored pensions may see their monthly contribution limit increase from JPY 23,000 to JPY 62,000 (approx. USD 146 to USD 393). Higher limits will be available to self-employed individuals.

These changes aim to standardize contribution opportunities across different employment categories, improving fairness and enabling higher retirement savings regardless of access to workplace plans.

Overall, the reform reflects a strategic shift toward enhancing private retirement savings, increasing flexibility and improving adequacy of retirement income.

Impact on companies

  • Potential increase in employee participation and contribution levels, particularly following the planned 2027 increases in contribution limits.
  • More externally funded opportunities to phase out unfunded retirement allowance plans.
  • Additional administrative and compliance work with payroll systems.

Suggested employer action

  • Review current retirement plan design and funding vehicles to assess opportunities for optimizing retirement savings and tax advantages.
  • Prepare for 2027 contribution limit increases, including system updates and communication strategies.
  • Coordinate with plan providers and payroll teams to ensure readiness for the improved 2027 contribution framework.
  • Monitor regulatory developments and confirm final implementation details as guidance is issued.

If you have any questions, please contact your HUB advisor. View more updates in our Global Benefits Directory.