Japan Gender Wage Gap Disclosure

Overview

The Ministerial Ordinance Amending Part of the Ministerial Ordinance Concerning General Employer Action Plans, etc., Based on the Act on Promotion of Women's Participation and Advancement in the Workplace (女性活躍推進法に基づく一般事業主行動計画等に関する省令の一部を改正する省令) represents a significant step in Japan's ongoing efforts to address gender inequality in the workplace. This ordinance, which came into effect on July 8, 2022, primarily introduced a mandatory requirement for large employers to publicly disclose information regarding the disparity in wages between men and women. It is an amendment to the existing Ministerial Ordinance, which itself is rooted in the broader Act on Promotion of Women's Participation and Advancement in the Workplace (女性の職業生活における活躍の推進に関する法律), commonly known as the Women's Act (女性活躍推進法), originally enacted in 2016.

The core purpose of this amendment is to enhance transparency regarding gender pay gaps within Japanese companies, thereby encouraging employers to proactively identify and rectify underlying issues that contribute to these disparities. By making such information public, the government aims to create a societal impetus for change, enabling job seekers, investors, and other stakeholders to make informed decisions and hold companies accountable for their diversity and inclusion efforts. This initiative is part of a larger national strategy to foster a society where women can fully exercise their individuality and abilities in their professional lives, contributing to a more vibrant and resilient economy.

Historically, Japan has faced persistent challenges in achieving gender equality in employment, with a notable gap in wages between men and women compared to other developed nations. The Women's Act, initially a temporary law, was established to address these systemic issues by requiring employers to formulate and implement 'General Employer Action Plans' (一般事業主行動計画) aimed at promoting women's active participation. The 2022 amendment, and the subsequent expansion planned for April 1, 2026, to include smaller enterprises, underscore a renewed commitment to accelerating the pace of change. This legislative evolution reflects a growing recognition that structural wage disparities hinder economic growth and societal progress, necessitating more robust regulatory frameworks to ensure fair and equitable treatment for all workers.

Definitions

Several key terms are central to understanding the scope and requirements of this Ministerial Ordinance and the underlying Women's Act. The most critical is 'gender wage gap' (男女の賃金の差異), which refers to the difference in average wages between male and female employees within a company. This is typically calculated as the ratio of women's average wages to men's average wages, expressed as a percentage, and must be reported across three categories: all workers, regular employees, and non-regular employees (part-time/fixed-term). This detailed breakdown is crucial for identifying specific areas where disparities might be more pronounced, such as in permanent versus temporary employment.

'General Employer Action Plans' (一般事業主行動計画) are comprehensive plans that employers are required to formulate, based on an analysis of their current situation regarding women's participation and advancement in the workplace. These plans must include specific numerical targets and concrete initiatives to achieve those targets, covering aspects such as providing opportunities for women in professional life and improving the employment environment to facilitate work-life balance. The Ministerial Ordinance specifies the items that must be included in these plans and the process for their formulation, notification, and public disclosure.

'Covered employers' (対象事業主) are defined by the number of 'regular employees' (常用労働者) they employ. A regular employee is generally understood to be a permanent employee, but for the purpose of counting, it also includes part-time or contract employees who have been employed for a year or more, or whose contract is expected to exceed one year. The distinction between 'regular employees' (正規雇用労働者) and 'non-regular employees' (非正規雇用労働者), which includes part-time and fixed-term workers (パート・有期社員), is particularly important for the calculation and disclosure of the gender wage gap, as disparities often differ significantly between these employment categories. The law also refers to 'remuneration' (報酬) or 'wages' (賃金) broadly, encompassing all forms of payment, whether direct or indirect, monetary or in-kind, arising from employment, consistent with international labor standards.

Covered Employers

The scope of employers subject to the obligations under the Women's Act and its Ministerial Ordinance has expanded over time, reflecting an increasing commitment to broader impact. Initially, the requirement to formulate and submit General Employer Action Plans applied to companies with 301 or more regular employees. However, a significant amendment effective April 1, 2022, extended this obligation to employers with 101 or more regular employees, thereby encompassing a much larger segment of the Japanese corporate landscape. Employers with 100 or fewer regular employees are currently encouraged to make such plans, but it remains a 'duty to endeavor' (努力義務) rather than a mandatory requirement.

Specifically concerning the disclosure of the gender wage gap, the initial mandate, which came into effect on July 8, 2022, targeted larger enterprises, specifically those with 301 or more regular employees. These companies were required to publicly report their gender wage disparities. This phased approach allowed larger organizations, which typically have more resources, to lead the way in implementing these new transparency requirements. The definition of 'regular employees' for these thresholds is crucial, as it includes not only full-time permanent staff but also certain part-time or fixed-term employees who meet specific criteria, ensuring a comprehensive count of the workforce.

Looking ahead, a further expansion of the disclosure obligation is set to take effect from April 1, 2026. From this date, employers with 101 or more regular employees will also be mandated to disclose their gender wage gap information, along with their female management ratio. This upcoming change will significantly broaden the reach of pay transparency regulations, bringing a vast number of medium-sized enterprises under the purview of these disclosure requirements. There are no specific sector-based exemptions mentioned in the provided information, indicating a broad application across industries for covered employers. This continuous expansion signifies Japan's strategic intent to progressively embed pay equity principles across its economy.

Employee Rights

While the Ministerial Ordinance primarily places obligations on employers, it indirectly strengthens employee rights by promoting transparency and accountability in pay practices. The mandatory disclosure of gender wage gap information empowers employees with access to data that can help them understand potential disparities within their own organizations. This transparency can serve as a basis for employees to inquire about their remuneration, compare their wages with reported averages, and potentially raise concerns about unfair treatment. Although the ordinance itself does not explicitly outline new individual complaint mechanisms directly tied to the disclosure, it creates an environment where existing anti-discrimination and equal pay provisions can be more effectively invoked.

Under the broader framework of Japanese labor law, particularly the Labour Standards Act (労働基準法) and the Equal Employment Opportunity Act (男女雇用機会均等法), employees already possess rights against discriminatory treatment based on gender. Article 4 of the Labour Standards Act explicitly prohibits employers from discriminating against workers in terms of wages solely on the basis of being female. The disclosure requirements under the Women's Act provide concrete data that can support claims of potential violations of these existing legal protections. Employees who believe they are subject to wage discrimination can consult with their company's human resources department, labor unions, or seek advice from Prefectural Labour Bureaus.

Furthermore, the requirement for employers to formulate and publicly disclose General Employer Action Plans, which include numerical targets for women's advancement and work-life balance initiatives, provides employees with a clear understanding of their company's commitments. This allows employees to monitor their employer's progress and advocate for the implementation of promised measures. The availability of this information on platforms like the Ministry of Health, Labour and Welfare's (MHLW) 'Female's Active Participation Promotion Corporate Database' (女性の活躍推進企業データベース) ensures that these plans and reports are accessible to all, fostering a more informed and engaged workforce. This collective awareness can contribute to a culture where employees feel more confident in exercising their rights and pushing for equitable workplaces.

Pay Transparency Requirements

The Ministerial Ordinance significantly bolsters pay transparency in Japan by mandating the disclosure of specific gender-related wage data. As of July 8, 2022, employers with 301 or more regular employees are required to publicly disclose their gender wage gap. This disclosure must present the difference in average wages between men and women across three distinct employment categories: all workers, regular employees, and non-regular employees (including part-time and fixed-term staff). The calculation involves expressing women's average wages as a percentage of men's average wages, rounded to one decimal place, and must also include any significant assumptions made during the calculation.

In addition to the gender wage gap, covered employers are also required to disclose other information related to women's participation and advancement. For companies with 301 or more regular employees, this includes at least two items from a list of categories: one related to providing opportunities for women in professional life (e.g., female management ratio, female hiring ratio) and one related to improving the employment environment for work-life balance (e.g., average continuous service years by gender, parental leave acquisition rates). For employers with 101 to 300 regular employees, the requirement is to disclose at least one item from each of these two categories. These additional metrics provide a broader context for understanding the factors contributing to wage disparities and the overall progress in promoting women's careers.

The method of disclosure is also specified: companies must make this information publicly available either on their own corporate website or through the Ministry of Health, Labour and Welfare's 'Female's Active Participation Promotion Corporate Database' (女性の活躍推進企業データベース). This database serves as a centralized platform for job seekers and the public to access and compare companies' performance on women's advancement. The disclosure must be made annually, specifically within approximately three months after the start of the business year following the end of the relevant business year for which the data is reported. For instance, if a business year ends in March 2023, the data must be published by approximately June 2023. Furthermore, from April 1, 2026, the obligation to disclose the gender wage gap and female management ratio will extend to all employers with 101 or more regular employees, significantly expanding the scope of these transparency requirements.

Reporting & Audit Obligations

Under the Ministerial Ordinance, employers are subject to comprehensive reporting obligations centered around the 'General Employer Action Plans' (一般事業主行動計画). Employers with 101 or more regular employees are mandated to formulate these plans, which must outline specific numerical targets and concrete initiatives to promote women's active participation in the workplace. These plans are developed after a thorough analysis of the company's current situation regarding women's employment, including aspects like hiring rates, continuous service years, working hours, and representation in management positions. The action plans must specify a planning period, numerical targets, details of initiatives, and their implementation timelines.

A crucial reporting obligation introduced by the 2022 amendment is the mandatory disclosure of the gender wage gap for employers with 301 or more regular employees, effective July 8, 2022. This information must be calculated for all workers, regular employees, and non-regular employees, and publicly reported annually. The first disclosure was due approximately three months after the start of the business year following the end of the business year in which the law came into effect. For example, for a company with a fiscal year ending March 31, 2023, the data for that year would need to be disclosed by approximately June 30, 2023. This reporting is not merely a numerical exercise; it requires companies to analyze the factors contributing to any observed disparities and to integrate corrective measures into their action plans.

While the ordinance mandates reporting and disclosure, it does not explicitly stipulate external audit obligations in the same way financial audits are conducted. However, the Ministry of Health, Labour and Welfare (MHLW) and Prefectural Labour Bureaus play a monitoring role, reviewing submitted action plans and disclosed information. They can request reports from employers and provide guidance or recommendations for improvement. Failure to comply with these requests or providing false information can lead to administrative penalties. The public nature of the disclosure itself acts as a form of social audit, as stakeholders can scrutinize the reported data. Furthermore, from April 1, 2026, the reporting of the gender wage gap and female management ratio will extend to employers with 101 or more regular employees, significantly expanding the pool of companies subject to these transparency requirements.

Governance & Enforcement Bodies

The primary governmental body responsible for the governance and enforcement of the Act on Promotion of Women's Participation and Advancement in the Workplace and its associated Ministerial Ordinance is the Ministry of Health, Labour and Welfare (厚生労働省, MHLW). The MHLW is tasked with formulating national policies, issuing guidelines, and overseeing the overall implementation of the law. It publishes detailed guidance for employers on how to formulate action plans, calculate wage gaps, and fulfill disclosure requirements. The MHLW also maintains the 'Female's Active Participation Promotion Corporate Database' (女性の活躍推進企業データベース), which serves as a central platform for companies to publicly disclose their information and for the public to access it.

At the regional level, the Prefectural Labour Bureaus (都道府県労働局) play a critical role in direct enforcement and support. These bureaus are responsible for receiving the 'General Employer Action Plans' (一般事業主行動計画) from companies within their jurisdiction. They provide advice, guidance, and support to employers in developing and implementing their action plans and in complying with information disclosure obligations. Labour Bureaus also serve as the initial point of contact for employees seeking consultation or filing complaints related to gender discrimination in employment, including wage disparities. Their local presence ensures that companies receive tailored assistance and that compliance is monitored effectively across different regions.

The MHLW and Prefectural Labour Bureaus interact through a system of reporting and oversight. The Labour Bureaus report on compliance and enforcement activities to the MHLW, which then uses this information to evaluate the effectiveness of the law and make further policy adjustments. While the law emphasizes voluntary efforts and self-correction by employers, these government bodies have the authority to request reports, conduct investigations, and issue administrative guidance or recommendations to non-compliant companies. In cases where recommendations are not followed, the MHLW or Labour Bureau can publicly name the non-compliant company, serving as a significant deterrent and a mechanism for public accountability.

Monitoring & Evaluation

The monitoring and evaluation framework for the Ministerial Ordinance and the Women's Act is designed to ensure continuous improvement in women's workplace participation and pay equity. The primary mechanism for monitoring is the submission and public disclosure of 'General Employer Action Plans' (一般事業主行動計画) and the mandatory gender wage gap information. Employers are expected to regularly review their progress against the numerical targets set in their action plans and to update these plans as necessary. The public disclosure of this data on company websites and the MHLW's 'Female's Active Participation Promotion Corporate Database' (女性の活躍推進企業データベース) allows for external scrutiny by job seekers, investors, and the general public, fostering a degree of market-driven accountability.

Prefectural Labour Bureaus actively monitor compliance by reviewing the action plans submitted by employers and the information disclosed. They can request additional reports from companies to verify the accuracy and completeness of the data. If a company fails to submit an action plan, disclose required information, or if the submitted information appears insufficient, the Labour Bureau can initiate an investigation. This typically begins with administrative guidance and advice, aiming to help the company achieve compliance. The frequency of these checks is ongoing, tied to the annual reporting cycle for action plans and wage gap disclosures.

The overall effectiveness of the Women's Act and its amendments is evaluated by the Ministry of Health, Labour and Welfare (MHLW) through various means, including statistical analysis of reported data, feedback from Labour Bureaus, and engagement with expert committees. The law itself was initially a temporary measure, set to expire in fiscal year 2025, but it has been extended for another ten years until March 31, 2037, indicating an ongoing commitment to its objectives and a recognition that further efforts are needed. This extension, coupled with the expansion of disclosure obligations to smaller enterprises, reflects an adaptive regulatory approach, where the law's scope and requirements are periodically reviewed and strengthened based on observed outcomes and persistent challenges in achieving gender equality.

Enforcement & Penalties

The enforcement mechanisms for the Ministerial Ordinance and the Act on Promotion of Women's Participation and Advancement in the Workplace primarily rely on administrative guidance and public pressure, rather than direct criminal penalties for non-disclosure. When an employer fails to comply with the obligations, such as formulating an action plan or disclosing required information, the Prefectural Labour Bureau (都道府県労働局) can request reports, provide advice, and issue guidance. If the employer still does not comply, the Labour Bureau can issue a recommendation for improvement.

A significant enforcement tool is the ability of the Ministry of Health, Labour and Welfare (MHLW) or the Labour Bureau to publicly name companies that fail to follow recommendations. This 'naming and shaming' mechanism is intended to leverage reputational risk as a powerful incentive for compliance, as negative public perception can impact a company's brand, recruitment efforts, and investor relations. While there is no direct fine for simply not disclosing the gender wage gap, it is crucial to note that if a Labour Bureau requests a report and the employer fails to submit it or submits a false report, they can be subject to an administrative fine (過料) of up to 200,000 JPY.

It is important to distinguish these administrative measures from the penalties under the Labour Standards Act (労働基準法). Article 4 of the Labour Standards Act strictly prohibits wage discrimination based on gender. Violations of this specific provision can lead to more severe penalties, including imprisonment for up to six months or a fine of up to 300,000 JPY. Therefore, while the Women's Act focuses on transparency and proactive measures, the underlying principle of equal pay is legally enforceable with more stringent sanctions under broader labor laws. The appeals process for administrative actions would typically follow the general administrative litigation procedures in Japan.

Relationship to Other Laws

The Ministerial Ordinance and the Act on Promotion of Women's Participation and Advancement in the Workplace operate within a broader framework of Japanese labor and equality laws, complementing and reinforcing existing legal provisions. The most direct relationship is with the Labour Standards Act (労働基準法), particularly Article 4, which explicitly prohibits wage discrimination based on gender. While the Women's Act focuses on transparency and proactive measures to address the gender wage gap, the Labour Standards Act provides the fundamental legal prohibition against such discrimination and carries criminal penalties for violations. The data disclosed under the Women's Act can therefore serve as evidence or a trigger for investigations under the Labour Standards Act.

Another crucial piece of legislation is the Equal Employment Opportunity Act (男女雇用機会均等法), which aims to ensure equal opportunities and treatment for men and women in employment across various stages, including recruitment, hiring, assignment, promotion, and retirement. The Women's Act builds upon the principles of the Equal Employment Opportunity Act by requiring employers to go beyond non-discrimination and actively promote women's advancement through action plans and data disclosure. The two laws work in tandem: the Equal Employment Opportunity Act sets the baseline for non-discrimination, while the Women's Act pushes for proactive measures and transparency to accelerate progress towards substantive equality.

Furthermore, the Ministerial Ordinance interacts with the Part-time and Fixed-term Employment Act (パートタイム・有期雇用労働法), which addresses the issue of unequal treatment between regular and non-regular employees. Given that women disproportionately occupy non-regular employment positions in Japan, the requirement to disclose gender wage gaps separately for regular and non-regular employees under the Women's Act highlights potential disparities that may also fall under the purview of the Part-time and Fixed-term Employment Act's provisions on equal and balanced treatment. This interconnectedness ensures a holistic approach to addressing various facets of employment inequality that contribute to the overall gender wage gap.

International Context

Japan's efforts to promote pay equity and women's advancement, as reflected in the Ministerial Ordinance and the Women's Act, align with international labor standards and global trends. Japan ratified the International Labour Organization (ILO) Convention No. 100, concerning Equal Remuneration for Men and Women Workers for Work of Equal Value, in 1967. This convention, a fundamental ILO instrument, mandates that each member state promote and, in so far as is consistent with the methods in operation for determining rates of remuneration, ensure the application to all workers of the principle of equal remuneration for men and women workers for work of equal value. Japan's Labour Standards Act Article 4, prohibiting gender-based wage discrimination, is considered to be in line with the spirit of ILO Convention No. 100.

Beyond Convention No. 100, ILO Convention No. 111, concerning Discrimination in Respect of Employment and Occupation, also provides a broader framework for non-discrimination, which is relevant to the Women's Act's objectives. Globally, there is a growing movement towards greater pay transparency, with many countries and regions, such as the European Union, implementing directives and laws that require companies to report on gender pay gaps. The EU Pay Transparency Directive, for instance, sets out comprehensive requirements for pay transparency measures, including reporting obligations for companies above certain employee thresholds. Japan's Ministerial Ordinance, by mandating gender wage gap disclosure, positions the country among those actively pursuing legislative solutions to address persistent gender pay disparities, albeit with its own specific implementation details and timelines. This reflects a global recognition that transparency is a crucial step towards identifying and ultimately closing these gaps.

Implementation Timeline

Compliance Checklist

Sources and References