Linking Executive Compensation to Diversity Goals — Japan

1. Meaning

Linking executive compensation to diversity goals means structuring a portion of an executive's remuneration—such as an annual bonus, performance-linked compensation, or long-term incentive—so that part of the payment depends on achieving specified diversity-related objectives.

Examples include:

• increasing the proportion of women in management;
• improving women's promotion rates;
• reducing an identified gender pay gap;
• increasing diverse representation in leadership pipelines;
• improving retention of underrepresented employees;
• establishing measurable anti-discrimination and inclusion targets.

In Japan, this concept sits at the intersection of corporate governance, directors' remuneration, employment equality and disclosure requirements.

Importantly, there is not a well-established Japanese reported case law directly deciding that a listed company's executive bonus tied specifically to a diversity KPI is lawful or unlawful. The relevant legal analysis therefore has to be constructed from Japanese rules on directors' remuneration, gender discrimination, equal pay, promotion and corporate decision-making.

2. Legal Framework

A. Directors' remuneration — Companies Act

Under Article 361 of the Companies Act, remuneration and other financial benefits received by directors are generally subject to shareholder approval, unless provided for in the articles of incorporation.

This is important because a company cannot treat an executive's compensation structure as purely an internal HR matter.

The Supreme Court has repeatedly addressed the legal significance of shareholder resolutions and board discretion concerning directors' remuneration. A recent Supreme Court decision concerning retirement allowance also confirmed the significance of Article 361 and the limits of board discretion where the remuneration framework has been established by the company.

Thus, if a company introduces a diversity-linked incentive, it should fit within its properly authorised remuneration framework.

3. Diversity Goals Must Not Become Discriminatory Pay

The principal employment-law restriction is the Equal Employment Opportunity Act (EEOA).

Japanese law prohibits discrimination based on sex in matters including:

• allocation of duties;
• authority;
• promotion;
• demotion;
• training;
• changes in occupational category;
• dismissal and retirement-related treatment.

The statute also prohibits discriminatory treatment in wages under the Labour Standards Act.

Therefore, an employer must distinguish between:

Lawful diversity objective

"Part of the executive bonus depends on increasing the proportion of women in management from 20% to 25%."

and

Potentially problematic arrangement

"Female employees will receive lower pay unless the company reaches the diversity target."

The first concerns executive performance measurement; the second directly affects employee remuneration and could raise discrimination concerns.

4. Diversity KPI vs. Quota

A company should also distinguish between a KPI and an automatic quota.

KPI

An executive receives a performance assessment based partly on measurable progress toward a diversity objective.

Quota

A fixed number or percentage of positions is reserved for a particular group.

A diversity-linked compensation scheme does not automatically require the company to adopt a quota.

For example, a company could measure:

• percentage of women among managers;
• percentage of women promoted;
• retention rates;
• gender pay-gap reduction;
• percentage of qualified diverse candidates in leadership pipelines.

This allows the remuneration system to focus on measurable organisational outcomes rather than making individual employees' pay dependent on demographic characteristics.

5. Current Japanese Diversity-Disclosure Context

Japan's framework has increasingly emphasised disclosure concerning women's participation.

From 1 April 2026, employers with 101 or more regularly employed workers are required to disclose the gender pay gap and women's managerial proportion as mandatory information under the amended Women's Participation Promotion Act framework. For employers with 301 or more employees, additional diversity-related disclosure requirements also apply.

This makes diversity-related performance indicators increasingly relevant to corporate governance.

However, disclosure requirements are different from a legal requirement to tie executive remuneration to diversity performance. The latter remains principally a matter of corporate remuneration design and governance.

6. Important Case Laws

Case 1: Shiba Shinkin Bank Case

Tokyo High Court, 22 December 2000; Supreme Court settlement, 24 October 2002

Female employees alleged substantial discrimination compared with male employees in promotion and advancement.

The Tokyo High Court found evidence that management evaluators had preferentially treated male employees in personnel assessments. Because advancement was connected to remuneration, the court recognised the relationship between discriminatory promotion practices and discriminatory pay.

Relevance

This is particularly important for diversity-linked executive compensation.

It demonstrates that:

promotion → status → remuneration

can be legally connected.

A company therefore needs objective and transparent criteria when evaluating diversity-related performance.

7. Case 2: Sumitomo Chemical Industry Case

Osaka District Court, 28 March 2001

The case involved alleged gender differences in:

• promotion;
• salary increases;
• personnel treatment.

The court found that, despite differences in recruitment categories, the employer had treated men more favourably in certain rank and salary assessments and that some of the gender-based treatment lacked sufficient justification.

Relevance

A diversity-linked compensation programme should therefore not operate alongside an underlying evaluation system that itself produces unlawful gender discrimination.

In other words:

A diversity bonus cannot cure an otherwise discriminatory HR system.

8. Case 3: Mitsubishi Chemical / Gender-Based Personnel Treatment Litigation

Japanese courts have considered claims concerning long-term differences in treatment between male and female employees involving:

• job assignment;
• promotion;
• qualifications;
• salary.

Court materials describe situations where historical gender-based personnel practices produced continuing differences in qualification and remuneration.

Relevance

This illustrates why a company designing diversity KPIs should examine historical data.

For example, merely setting a target of:

"25% women managers"

may not address the underlying problem if women historically received fewer:

• leadership opportunities;
• training opportunities;
• high-value assignments;
• promotion opportunities.

A proper diversity compensation system should therefore consider the pipeline, not only the final percentage.

9. Case 4: Commercial Union / Equal Promotion Principles

Japanese employment litigation has recognised that discriminatory treatment in promotion can have downstream effects on wages.

The legal framework prohibits discriminatory treatment based on sex in promotion and related employment decisions.

Relevance

If an executive's diversity bonus depends on increased female representation in management, the company should make sure that the underlying promotion process is:

• transparent;
• competency-based;
• documented;
• consistently applied.

Otherwise, employees could challenge the underlying promotion decisions even though the executive compensation scheme itself appears neutral.

10. Case 5: Supreme Court Director-Remuneration Case — 2024

Supreme Court, First Petty Bench, 8 July 2024

The Supreme Court considered a dispute concerning a retiring director's retirement allowance.

The company's internal rules established a basis for calculating the allowance, while the board had authority to reduce it in specified circumstances. The Court held that the board's reduction was not outside its discretionary authority or an abuse of that authority given the circumstances and the company's rules.

Relevance

This case is not a diversity case.

Its importance is governance of executive compensation.

It demonstrates that:

• remuneration rules matter;
• board authority must operate within the established framework;
• the circumstances considered by the board can be legally relevant;
• board discretion is not unlimited but can be upheld where properly exercised.

Therefore, a diversity-linked executive bonus should have clear rules established in advance.

11. Case 6: Supreme Court Director Remuneration Principle

Japanese Supreme Court jurisprudence concerning directors' remuneration recognises the importance of shareholder approval under Companies Act Article 361.

Where the articles do not establish the remuneration, shareholder resolution has an important role in establishing the directors' remuneration entitlement. The Supreme Court's more recent remuneration jurisprudence continues to apply this statutory framework.

Relevance

A company wishing to link executive remuneration to diversity goals should determine:

1. who approves the remuneration;
2. what performance metrics apply;
3. how the metrics are calculated;
4. who verifies performance;
5. whether the board has discretion to adjust the award;
6. whether shareholders' approval is required.

12. Case 7: Supreme Court Equal-Treatment Principles

Japanese Supreme Court jurisprudence concerning employment treatment reinforces the importance of examining whether an employer's treatment has a legitimate basis rather than merely accepting the employer's stated reason.

The Japanese equality framework specifically prohibits sex-based discrimination in employment allocation, promotion, demotion and training.

Relevance

A diversity-linked compensation plan should therefore avoid creating arbitrary or opaque evaluation mechanisms.

For example:

Good design

"20% of the annual executive incentive is based on objectively measured improvement in women's management representation and promotion rates."

Higher-risk design

"The board may reduce an executive's bonus if it believes the executive has not sufficiently supported diversity."

The second formulation gives considerably more room for inconsistent or discriminatory application.

13. Case 8: Promotion-Assessment Dispute and Transparent Criteria

MHLW materials describe disputes where women alleged delayed promotion because the company had unclear promotion criteria. In one such case, the authorities emphasised the importance of fair and transparent promotion and evaluation criteria.

Although this is an administrative dispute-resolution example rather than a Supreme Court judgment, it is useful for designing compensation KPIs.

Lesson

Diversity-related executive evaluation should have:

• predefined targets;
• objective measurement;
• written methodology;
• consistent evaluation;
• documented reasons for adjustments.

14. How a Japanese Company Can Structure the Scheme

A possible framework could be:

The exact percentages are a corporate-design choice, not a statutory Japanese requirement.

15. Appropriate Diversity Metrics

Rather than relying exclusively on one numerical target, companies can use multiple indicators:

Representation

• percentage of women managers;
• percentage of women executives;
• diversity of leadership pipeline.

Advancement

• promotion rates;
• leadership-development participation;
• succession-pipeline diversity.

Retention

• turnover rates;
• return-to-work rates after parental leave.

Pay equity

• gender pay-gap measurements;
• differences in bonus or promotion outcomes.

Japan's current disclosure framework makes gender pay gaps and women's managerial representation particularly relevant data points for larger employers.

16. Risks of Linking Compensation to Diversity Goals

A. Reverse-discrimination claims

If the company gives employment advantages directly to one sex without a lawful basis, affected employees could challenge the arrangement.

B. Manipulation of statistics

Executives might temporarily change organisational structures simply to hit a numerical target.

C. Lower-quality decision-making

If the KPI is poorly designed, executives may prioritise the number rather than genuine inclusion.

D. Short-termism

A manager might increase female appointments in one year without creating a sustainable leadership pipeline.

E. Measurement disputes

Questions may arise about:

• which employees count;
• what qualifies as "management";
• whether transfers count;
• whether resignations affect the calculation;
• how acquisitions or reorganisations affect the denominator.

F. Governance disputes

If shareholders or directors did not properly authorise the remuneration arrangement, the compensation itself can become legally contentious.

17. Recommended Compliance Structure

A Japanese company implementing this type of compensation plan should consider the following sequence:

Step 1 — Establish the diversity objective

Example:

Increase women's managerial representation from X% to Y%.

Step 2 — Establish baseline data

Document the starting position.

Step 3 — Define the measurement methodology

Specify precisely how the percentage will be calculated.

Step 4 — Obtain appropriate corporate approval

Ensure compliance with the company's articles, shareholder resolutions and Companies Act Article 361 requirements concerning director remuneration.

Step 5 — Link only part of compensation

A company may designate a defined performance component rather than making the entire remuneration package dependent on one diversity metric.

Step 6 — Create objective evaluation standards

The criteria should be known before the performance period begins.

Step 7 — Independent review

The remuneration committee, HR function, internal audit or another appropriate body can verify the results.

Step 8 — Document adjustments

If the board exercises discretion, reasons should be recorded.

Step 9 — Check equality-law compliance

The scheme should be reviewed against the Equal Employment Opportunity Act and Labour Standards Act.

18. Difference Between Diversity Policy and Executive Compensation

It is important not to confuse three different legal mechanisms:

1. Diversity policy

The company establishes policies encouraging equal opportunity and diversity.

2. Diversity disclosure

The company publishes information such as gender pay differences and women's managerial representation.

3. Diversity-linked remuneration

Executive pay depends partly on achieving diversity-related performance objectives.

Japanese law increasingly regulates the first two areas, but there is no general statutory rule requiring every Japanese company to make executive compensation dependent on diversity performance. The compensation mechanism is primarily a corporate-governance design question subject to applicable remuneration and equality rules.

Conclusion

Linking executive compensation to diversity goals in Japan is legally possible as a corporate-governance mechanism, but it must be designed carefully.

The principal legal considerations are:

1. Companies Act requirements concerning directors' remuneration;
2. shareholder and board approval where required;
3. Equal Employment Opportunity Act restrictions on sex discrimination;
4. Labour Standards Act prohibition on sex-based wage discrimination;
5. objective and transparent promotion/evaluation systems;
6. accurate diversity measurement;
7. consistent application of the compensation formula;
8. proper documentation of board decisions.

The case law does not establish a simple rule that "diversity-linked executive compensation is lawful" or "unlawful." Rather, Japanese cases concerning discriminatory promotion/pay and directors' remuneration show the two legal dimensions that must be reconciled: diversity objectives cannot override equality law, and executive compensation must operate within the company's legally authorised remuneration framework.