Continuous Employment System Under Japanese Law: Rehire to Age 70

Japan’s continuous employment system is a legal mechanism that requires employers to keep workers on past the company’s mandatory retirement age, usually by re-hiring them under a new fixed-term contract that runs until age 65. It exists to close the gap between corporate retirement, which can happen as early as 60, and public pension eligibility, which starts at 65. For the worker, it means a right to keep working; for the employer, it means restructuring the relationship rather than ending it.

Why the System Exists

Article 8 of the Act on Stabilization of Employment of Elderly Persons sets a hard floor on retirement: no employer may fix a mandatory retirement age below 60.¹ Companies may set it higher, and many do, but 60 is the minimum the law allows. A narrow exception exists for occupations the Ministry of Health, Labour and Welfare has designated as especially difficult for older workers, though that exception covers very few jobs in practice.

The floor matters because Japan’s Old-age Basic Pension and Old-age Employees’ Pension both use 65 as the standard eligibility age.² Without additional protections, someone forced out at 60 would face up to five years with no employer income and no pension. The continuous employment system is how the law closes that gap.

What Employers Must Offer Workers Under 65

Under Article 9, any employer whose mandatory retirement age is below 65 must adopt one of three measures to keep workers employed to that age:¹

Abolish the mandatory retirement age entirely, so employees can stay as long as they are able to work.
Raise the retirement age to 65 or higher.
Introduce a continuous employment system, re-hiring the worker after formal retirement under a new fixed-term contract.

Most companies pick the third option. Re-hiring gives employers room to renegotiate working conditions while still meeting the legal requirement, without committing to indefinite employment or permanently raising the company’s retirement age. It is the path of least resistance, and it is why the “continuous employment system” is what most Japanese workers actually encounter at retirement.

Re-employment does not have to happen at the original company. Article 9, paragraph 2 allows re-employment through a “specially related employer,” which includes subsidiaries, parent companies, sibling companies, and other affiliated entities.¹ Corporate groups often use this flexibility to place older workers where suitable roles exist.

Who Qualifies

As of April 2025, employers must offer continuous employment to every employee who wants it. This has not always been true. A transitional provision from the 2012 amendments let companies with existing labor-management agreements screen out some workers using selection criteria, but that carve-out phased out in stages by age (61, then 62, then 63, then 64) and expired entirely on March 31, 2025.³ Any worker who expresses a desire to keep working past the mandatory retirement age now has the right to be re-employed until 65.

Initial eligibility is one thing; contract renewal is another. An employer can decline to renew a fixed-term re-employment contract if the worker genuinely cannot perform the job duties for documented health or capability reasons. Any standards used to evaluate renewal must be written into the company’s Rules of Employment. Vague or subjective criteria invite disputes, and Japanese courts have scrutinized whether non-renewal amounts to an abuse of rights.

How the New Contract Differs From the Old One

Re-employment is not a continuation of the old job. The original indefinite-term contract ends at retirement, and a new fixed-term contract replaces it. That new contract covers job duties, working hours, and pay, and it typically runs for one year with the possibility of renewal until 65.

Pay reductions are the norm. Most re-employed workers earn significantly less than they did before retirement, and employers usually justify the cut by pointing to reduced responsibilities, shorter hours, or the removal of managerial authority. Japanese law does not prohibit pay cuts on re-employment, but it does prohibit unreasonable disparities in working conditions between regular and fixed-term employees. If the re-employed worker keeps doing substantially the same job with the same responsibilities, a large pay cut is harder to defend.

The Supreme Court weighed in on this in the 2023 Nagoya Driving School case. The Nagoya High Court had held that paying re-employed workers less than 60% of their pre-retirement base salary was per se illegal. The Supreme Court overturned that bright-line rule, holding that courts must examine the nature and purpose of each component of the base salary, including whether it reflects seniority, job content, or merit, before deciding whether a disparity is unreasonable. There is no fixed percentage threshold. Each case turns on the actual differences in role, expectations, and salary structure.

A worker who believes a pay cut is unjustified can bring a claim before a labor tribunal. Winning requires showing that duties, scope of responsibility, and working conditions remain essentially unchanged despite the reduced pay.

Pension and Social Insurance While Re-employed

Social insurance coverage typically continues without interruption. A re-employed worker in a position covered by Employees’ Pension Insurance and Employees’ Health Insurance stays enrolled in both, which means health insurance through the employer continues and pension credits keep building.⁴

Higher earners should watch one threshold. If the combined monthly total of pension and work remuneration exceeds ¥650,000, the Old-age Employees’ Pension is partially reduced or suspended under the “zaishoku” adjustment.² Most re-employed workers, who are earning less than they did before retirement, will not hit this ceiling, but it is worth checking before signing a new contract.

The 65-to-70 Tier

The 2021 amendments added a second layer covering workers aged 65 to 70. This one is an effort obligation (努力義務), not a strict mandate. Employers must try to provide opportunities but do not face the same enforcement escalation for falling short.³

The law gives employers five ways to meet the effort obligation, and the options go beyond traditional employment:³

Raise the retirement age to 70 or higher.
Introduce a continuous employment system that extends to 70.
Abolish the mandatory retirement age.
Contract with the worker to support their own new business through outsourcing or entrustment, paying for deliverables rather than employing them.
Facilitate the worker’s participation in social contribution projects run by the employer, by an organization under contract with the employer, or by a nonprofit the employer funds.

The last two options create a freelance-style or volunteer-style relationship instead of an employer-employee one, reflecting that many workers past 65 prefer flexible arrangements. Employers are expected to consult worker representatives when designing these programs.

For workers 65 and older, re-employment can also occur at a business with no capital relationship to the original employer at all, under Article 10-2, paragraph 3.³ Older workers may find better opportunities outside their original employer’s corporate group entirely.

What Happens If the Employer Refuses

For the under-65 requirements, Article 10 lays out a three-step enforcement ladder:³

The Minister of Health, Labour and Welfare issues administrative guidance and advice.
If the employer ignores it, the Minister issues a formal recommendation to implement one of the three required measures.
If the employer still refuses, the Minister can publicly disclose the company’s name.

There is no fine or criminal penalty in this ladder. Public disclosure functions as the sanction, and in Japan’s business environment being named as a company that fails to protect older workers is a serious reputational hit that affects recruitment, client relationships, and investor confidence. Most employers comply after the guidance stage.

For the 65-to-70 tier, enforcement is lighter. The Minister can give guidance and advice and can recommend an improvement plan, but the law does not authorize public disclosure of names for failing to meet the effort obligation.³ That gap is deliberate: the 65-to-70 rules ask employers to try, while the under-65 rules require them to deliver.

1
Japanese Law Translation. Act on Stabilization of Employment of Elderly Persons
2
Japan Pension Service. Old-age Employees Pension
3
Japanese Law Translation. Act on Stabilization of Employment of Elderly Persons
4
Japan Pension Service. Employment, Job Change, Retirement