Pay Equity Japan
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Basic Summary
Japan’s pay equity regime combines long-standing statutory prohibitions on gender-based wage discrimination with newer, detailed rules requiring equal and balanced treatment between regular (indefinite, full-time) and non-regular (part-time, fixed-term, dispatched/agency) workers. Since 2022, large employers must publicly disclose annual gender wage gap indicators, while since 2020–2021, employers must ensure that differences in pay and treatment between regular and non-regular workers are reasonable and explainable with reference to job content, responsibility, and transferability.
There is no single mandatory pay audit methodology prescribed by law; however, Total Rewards and Payroll professionals are expected to maintain granular wage component data, apply the Ministry of Health, Labour and Welfare (MHLW) equal pay guidelines, disclose required indicators, and be able to explain pay-setting rules to employees upon request. Best-practice analyses typically include FTE-normalization, job-based comparison groups, and regression/statistical testing to evidence legitimate, non-discriminatory pay differentials.
Summary
Japan prohibits pay discrimination on the basis of sex under the Labor Standards Act and Equal Employment Opportunity legislation, and obliges equal and balanced treatment for non-regular workers under the Act on Improvement of Employment Management for Part-Time Workers and Fixed-term Employees and the Worker Dispatch Act (for agency/dispatched workers). The MHLW’s 2020 Equal Pay for Equal Work Guidelines articulate how employers must assess differences in base pay, bonuses, and allowances using three principal axes: similarity of job content, degree of responsibility, and the foreseeability and scope of job assignment changes (transferability and breadth of duties). Employers must also provide detailed explanations of differences upon request by employees.
Since the 2022 amendment to the Act on the Promotion of Women’s Participation and Advancement in the Workplace, companies with 301+ employees must annually disclose gender wage gap metrics for the prior fiscal year for: all employees, regular employees, and non-regular employees. Japan does not mandate regression-based pay audits, but TR leaders often conduct unadjusted and adjusted gap analyses to support remediation decisions, defend treatment differences, and prepare the mandatory explanations to employees, unions, and regulators. Remediation focuses on correcting unjustified differences, documenting legitimate factors, and updating policies and job architectures to comply with the MHLW guidelines and disclosure obligations.
Legal Framework
- Primary laws and key guidance
- Labor Standards Act (Act No. 49 of 1947), incl. Article 3 (prohibits discrimination by nationality, creed, or social status) and Article 4 (equal wages for men and women).
- Act on Securing, Etc. of Equal Opportunity and Treatment between Men and Women in Employment (Equal Employment Opportunity Act, Act No. 113 of 1972), prohibiting sex-based discrimination in recruitment, assignment, promotion, and other employment terms.
- Act on Improvement of Employment Management for Part-Time Workers and Fixed-term Employees (originally Act No. 76 of 1993; substantially amended under 2018 Work Style Reform Laws; effective 1 April 2020 for large employers and 1 April 2021 for SMEs). Establishes equal and balanced treatment between regular and non-regular employees and imposes explanation duties.
- Worker Dispatch Act (Act No. 88 of 1985), Articles 30-2 to 30-4, requiring equal/balanced treatment for dispatched workers via either an equal pay by job approach (matching the user enterprise’s comparable employees) or a Labor-Management Agreement method with point-based tables aligned to MHLW guidelines.
- Act on the Promotion of Women’s Participation and Advancement in the Workplace (Act No. 64 of 2015), as amended by Act No. 46 of 2022, mandating annual disclosure of gender wage gap indicators for businesses with 301+ employees and broader gender equality planning/disclosure duties.
- MHLW Equal Pay for Equal Work Guidelines (effective 1 April 2020; updated Q&As issued periodically), interpreting permissible and impermissible differences for base pay, bonuses, and each allowance type.
- Working Hours and Overtime Premiums under the Labor Standards Act and related ordinances (including 50% premium for overtime exceeding 60 hours/month now applicable to SMEs since 1 April 2023).
- Regulatory bodies
- Ministry of Health, Labour and Welfare (MHLW) and its Prefectural Labour Bureaus and Labour Standards Inspection Offices (LSIOs) oversee enforcement, guidance, and administrative conciliation.
- Public Employment Security Offices and the Labour Relations Commissions may be involved in dispute resolution; Labour Tribunals (summary court proceedings) provide a fast-track judicial forum for wage disputes.
- Penalties and enforcement
- Violations of the Labor Standards Act (including sex-based wage discrimination or premium pay violations) can trigger administrative guidance and criminal sanctions; criminal penalties can include fines and, in certain cases, imprisonment. LSIOs may refer serious cases for prosecution.
- Failure to ensure equal/balanced treatment under the Part-Time/Fixed-term Act and Worker Dispatch Act can lead to administrative guidance, recommendations, and public announcements. Worker dispatch agencies and user enterprises may face business improvement orders; persistent non-compliance risks business suspension orders for agencies.
- Under the Women’s Participation Act, non-disclosure or false disclosure of required indicators may result in administrative guidance and public naming, with potential reputational consequences and procurement disadvantages.
- Recent updates and pending changes
- 2022: Gender wage gap disclosure requirement introduced for employers with 301+ employees; disclosure rules and calculation Q&As issued by MHLW through 2023–2024.
- 2023: Overtime premium of 50% for hours exceeding 60/month extended to SMEs (previously large employers only).
- Ongoing policy discussion (2024–2025): potential expansion of wage-gap disclosure to employers with 101–300 employees and standardization of indicator presentation; monitoring recommended, as thresholds and required items may change.
- International frameworks
- Japan has ratified the ILO Equal Remuneration Convention, 1951 (No. 100) and the ILO Discrimination (Employment and Occupation) Convention, 1958 (No. 111), reinforcing the principle of equal remuneration for work of equal value.
- Voluntary reporting frameworks frequently referenced by multinationals include GRI 405-2 (Ratio of basic salary and remuneration of women to men) and WEF/OECD pay equity tools; while non-binding in Japan, alignment improves global comparability and investor communications.
Detailed Data Requirements
Field/Data | Description |
---|---|
Employee unique identifier | Stable internal ID; avoid use of national ID numbers for analytics to reduce privacy risk. |
Legal entity and worksite | Japan employing entity name, prefecture/city work location; identify user enterprise for dispatched workers. |
Employment status | Regular (indefinite, typically full-time), Fixed-term, Part-time, Dispatched (agency employee). Include whether limited-term contract is renewable and contract end date. |
Job family/role and grade/level | Job architecture code, Japanese job title, global job family, career stream, and grade/band; record if job content and responsibility align to comparison roles. |
Job content summary | Core duties, decision-making scope, supervisory responsibility (headcount/budget), degree of autonomy; use standardized job descriptions to enable equality assessments. |
Scope of assignment changes (transferability) | Whether role includes company-directed transfers/rotations (tenkan), expected future job breadth, and geographic transfer obligations (tenkin). |
Work schedule and FTE | Contracted weekly hours, prescribed working hours per work rules, FTE percentage, shift pattern, and variable schedule rules (Article 32/36 agreements context). |
Seniority and tenure | Company service (continuous service date), role-in-grade tenure, industry experience (years), relevant breaks. |
Base salary (Kihonkyū) | Monthly base in JPY; include effective date of last base change; provide annualized contractual base. |
Variable pay – individual incentives | Commissions, sales incentives, MBO awards; record plan type, period, target/actual, payout date and amount. |
Bonuses (Shōyo) | Summer/winter bonus amounts and payout dates; identify whether performance/company-result linked; capture number of months paid. |
Overtime and premiums | Overtime hours by month; overtime premium pay; late-night premium (22:00–05:00), holiday premium, and >60h overtime premium; record applicable rates. |
Allowances – position/role | Managerial/position allowance, duty allowance; specify monthly amount and eligibility rules. |
Allowances – qualification/license | Occupational/skill or license allowance amounts and qualifying certificates. |
Allowances – family/dependent | Spouse/child allowance; specify criteria and whether paid regardless of employment status. |
Allowances – housing/area | Housing stipend, location/area allowance; document geographic differentials and eligibility. |
Allowances – commuting/transport | Stipend or reimbursement policy; classify as wage (stipend) vs reimbursement at cost; amounts. |
Shift/irregular work allowance | Shift, weekend, on-call, standby premiums; amounts and triggers. |
Equity compensation | RSUs, stock options, PSUs; grant date, grant-date fair value (IFRS 2/US GAAP), vesting schedule; report grant-date fair value amortized to analysis period or realized value, per chosen policy (document consistently). |
Retirement benefits | Defined contribution employer contributions (annual JPY); defined benefit normal cost (if available) or imputed annual accrual; exclude one-time retirement/severance lump-sum if analyzing annual wages; document treatment. |
Benefits in kind and perquisites | Company housing imputed value, car benefit, meal subsidies, childcare subsidies; valuation approach (taxable value or internal cost). |
Leave and attendance | Paid leave taken, unpaid leave, long-term leave weeks; capture to contextualize outliers in annual pay. |
Protected characteristics | Sex/gender (for lawful reporting); age and disability status if collected under lawful purpose; avoid collecting special care-required personal information without necessity and consent per APPI. |
Performance data | Performance rating, potential assessment, last bonus factor; document scale and calibration rules. |
Education/qualifications | Highest degree, relevant certifications; only if directly job-related and lawfully collected. |
Geographic comparator flag | Region/city cost level; comparator market scope settings used in pay ranges. |
Collective agreement coverage | Whether wage components are set by a labor-management agreement (including dispatched worker pay tables) and validity period. |
Exclusions flags | Identify one-off, non-recurring payments (e.g., relocation, disaster relief) to exclude from base analyses; document rationale. |
Data lineage and effective dates | Source system, payroll period coverage, and effective dates for each data element. |
Step-by-Step Calculation Methodology
- Data Standardization: Standardize scope, currency, and time basis for all components to enable like-for-like comparison.
- Scope the workforce by legal entity and include employees on the Japan payroll during the analysis period. For compliance indicators under the Women’s Participation Act, include the entire workforce in Japan and segment by regular vs non-regular per MHLW definitions; do not FTE-normalize for the legally required wage gap indicator.
- Convert all values to JPY and to a consistent 12-month period (typically the company fiscal year or April–March for Japan standard). Annualize recurring monthly pay as 12 × monthly base, and add actual bonuses and incentive payments falling within the fiscal year.
- Map and label compensation components precisely: base, bonuses, each allowance type, overtime/premiums, equity, benefits, and exclusions. Align to MHLW guideline categories for base pay, bonuses, and allowances to facilitate lawful explanations.
- For equity, select a policy and apply consistently: either include grant-date fair value amortized for the vesting portion in the year, or realized income (taxable value) if that better reflects remuneration for the period. Document the chosen method in the pay equity protocol.
- Identify and exclude non-remunerative reimbursements (e.g., commuting expense reimbursements paid at cost) and non-recurring, non-performance-related one-off payments from analytical comparisons; retain them for statutory wage gap indicator only if they meet the legal definition of “wages” for disclosure.
- FTE Adjustments: Normalize hours for analytical pay equity (not for the statutory gender wage gap disclosure).
- Compute FTE as contracted weekly hours divided by the standard full-time hours in the work rules (commonly 40 hours/week or the enterprise’s prescribed hours).
- Annualized FTE-adjusted base = (Monthly base × 12) ÷ FTE for comparison across part-time/full-time where equal work is performed; alternatively, compare by hourly rates for strictly hourly-paid roles.
- For variable pay (bonuses, incentives), pro-rate by participation period and FTE eligibility rules to avoid bias, unless the plan is explicitly intended to differ by employment status and is justified under the MHLW axes (job content/responsibility/transferability).
- Overtime and premiums should be analyzed on both an actual total and rate basis: use effective hourly rates (total cash ÷ total hours) to control for hours differences; also analyze premium rates compliance with statutory minima.
- Total Compensation Calculations: Build both “statutory indicator pay” and “analytical total compensation” views.
- Statutory gender wage gap indicator (Women’s Participation Act): Wages = base pay + allowances (including overtime, night/holiday premiums, position, family, housing, area, skill/qualification) + bonuses; generally exclude retirement allowances/severance and purely reimbursable commuting expenses. Indicator formula for each category (All, Regular, Non-regular):
- Gender Wage Gap (%) = (Average annual wages of women ÷ Average annual wages of men) × 100.
- Analytical Total Cash Compensation (TCC) for pay equity: TCC = Annualized base + bonuses/incentives paid in period + overtime/premiums + recurring allowances (position, skill, family, housing, area, shift) − excluded one-offs. Consider Total Direct Compensation (TDC) = TCC + equity value (per policy). Optionally include employer DC contributions and DB normal cost to form Total Remuneration (TR).
- Use winsorization for extreme outliers (e.g., at 1st/99th percentiles) to prevent undue leverage in regression analyses; document the rule.
- Comparison Group Formation: Create narrowly defined, defensible comparison cohorts.
- Primary comparators are employees performing the same or substantially similar work, with materially similar responsibility and transferability. Use job family + grade/level as the baseline; validate homogeneity with business leaders.
- Segment by location if area/housing allowances apply, or include location as a covariate. Do not mix regular and non-regular employees unless the work content and responsibility are truly equivalent; analyze non-regular groups separately and then compare cross-status where appropriate under equal/balanced treatment tests.
- Minimum cohort size for statistical testing: generally n ≥ 30 for regression within a cohort; for smaller groups (n 10–29), use simpler comparisons (median or mean pay ratio tests) with caution; for very small groups (n < 10), prefer case-by-case review.
- For dispatched workers, form comparison groups either: (1) against the user enterprise’s comparable employees under the equal treatment route, or (2) against the labor-management pay table points under the agreement route; ensure alignment to the selected method.
- Statistical Testing: Quantify unadjusted and adjusted gaps and identify drivers.
- Unadjusted gap in a cohort = 1 − (Average total comp of women ÷ Average total comp of men). Report also by median to reduce skew from overtime or bonuses.
- Adjusted gap via OLS regression on log compensation: ln(TCC_i) = β0 + β1 Female_i + β2 Tenure_i + β3 Grade_i + β4 Performance_i + β5 Location_i + β6 Education/License_i + β7 JobFamilyFE + ε_i. The coefficient β1 estimates the adjusted gender effect; interpret exp(β1) − 1 as the percentage difference.
- For mixed-status analyses, include EmploymentStatus dummies (Fixed-term, Part-time, Dispatched) and interaction terms with Grade/JobFamily where applicable; ensure model coherence with MHLW’s three axes by including proxies for job content and responsibility (e.g., managerial responsibility, job code).
- Use a 5% significance level for hypothesis tests and report 95% confidence intervals. Where normality is doubtful or sample sizes are small, supplement with non-parametric tests (e.g., Mann–Whitney U for medians) and permutation re-sampling.
- Flag for remediation where: (a) adjusted gender coefficient is negative, statistically significant, and economically material (e.g., ≤ −3% to −5%); (b) unadjusted gaps exceed internal risk thresholds; or (c) any non-regular vs regular differential fails the MHLW guideline tests for reasonableness.
- Gap Analysis: Synthesize findings into actionable insights aligned to Japanese legal tests.
- Map each identified differential to one or more legitimate factors: job content/responsibility, transferability, performance/results, qualifications, labor market, or working hour patterns. Require documentary evidence for each.
- Identify impermissible or weakly supported differentials (e.g., status-only differences without job-content justification, gender-based patterns, outdated allowances with no job-related rationale).
- Quantify remediation costs by scenario (adjust base pay, modify allowance eligibility rules, recalibrate bonuses) and set priority based on legal risk (e.g., gender discrimination > non-regular reasonableness), employee impact, and budget.
- Prepare the statutory gender wage gap disclosure tables and narrative, and the internal materials needed to meet explanation duties upon employee request.
Justifiable Differences
- Legally acceptable reasons (with documentation)
- Job content and responsibility differences: materially distinct duties, complexity, decision rights, supervisory scope, and accountability supported by job descriptions and org charts.
- Scope of assignment changes and transferability: broader expected future duties, rotational assignments, nationwide transfer obligations, and mobility requirements justified in work rules or individual contracts.
- Performance and results: documented, consistently applied performance ratings and MBO outcomes tied to pay decisions under published policies and calibrated processes.
- Skills, qualifications, and licenses: objectively verifiable credentials directly related to job requirements (e.g., professional certificates, language proficiency required for the role), with defined allowance ladders or pay premiums.
- Experience and tenure: relevant tenure in role, company, and industry where linked to proficiency and productivity; use structured progression rules (e.g., step-in-grade).
- Working hours/schedules: differences arising from actual hours worked (overtime premiums, shift differentials) that comply with statutory rates and employer policy.
- Geographic differentials: documented area/housing allowances reflecting cost or labor market differences tied to work location.
- Labor market scarcity: market-based premiums for hard-to-fill roles, supported by current survey data and consistent application by job/skill segment.
- Dispatched worker method compliance: pay set per user-enterprise comparable employees or per valid labor-management agreement with point tables aligned to MHLW reference tables.
- Non-justifiable reasons (or high-risk)
- Gender, marital status, pregnancy/childbirth, or caregiving status.
- Employment status per se (regular vs non-regular) without link to job content/responsibility/transferability.
- Age-based differences lacking statutory or job-related justification.
- Nepotism, favoritism, or opaque discretionary adjustments without criteria.
- Historical pay compression/legacy allowances unrelated to current job value.
- Penalizing part-time/fixed-term employees by excluding them from bonuses or allowances where their job content/responsibility is equivalent to regular employees.
Reporting Requirements
- Gender wage gap disclosure (Women’s Participation Act; 301+ employees)
- Indicators required: ratio of women’s average annual wages to men’s for (1) all employees, (2) regular employees, and (3) non-regular employees, calculated for the most recently completed fiscal year.
- Wage definition: base wages plus allowances (including overtime/night/holiday premiums and position/family/housing/skill/area allowances) and bonuses. Retirement allowances/severance are excluded; commuting reimbursements paid at cost are typically excluded as non-remunerative. Follow the latest MHLW Q&As for edge cases.
- Publication: on the company website (visible and understandable) and on the MHLW’s General Business Owner Action Plans Database. Provide the calculation basis date range and scope description.
- Timing: disclose promptly after fiscal year-end once figures are finalized; as a general benchmark, within approximately three months is recommended by MHLW practice guidance. If bonus timing delays finalization, disclose as soon as reasonably practicable thereafter and update if corrections arise.
- Action plans and other gender metrics
- Maintain and publish an Action Plan with at least one numerical target to improve women’s participation and advancement; update and file the plan with the Prefectural Labour Bureau as required. Consider aligning additional voluntary metrics to GRI 405-2 for global consistency.
- Equal treatment explanation duties (Part-Time/Fixed-term; Worker Dispatch)
- Upon request, provide individual non-regular employees with detailed explanations of treatment differences vs comparable regular employees, covering base, bonus, and each allowance, with specific rationales and underlying criteria.
- For dispatched workers, agencies and user enterprises must cooperate to provide explanations consistent with the chosen equal-treatment method.
- Trade union/works council engagement
- Provide information reasonably necessary for collective bargaining upon request by recognized unions, including pay-setting criteria and summarized cohort data, ensuring APPI compliance (aggregate or anonymized data where feasible).
- Government submissions
- No routine pay equity report filings beyond the Women’s Participation Act disclosures and Action Plans. Respond to LSIO/Labour Bureau inquiries or improvement orders with the requested evidence and corrective action plans.
Example Employee Statement
Subject: Explanation of Pay and Allowance Treatment
Thank you for your request for information about your pay and allowances. In accordance with Japanese law, we provide the following explanation of how your treatment is determined and how it compares with employees performing similar work.
1) Job content and responsibility: Your position is classified as [Job Family/Grade]. The core duties include [summary]. The degree of responsibility is [e.g., individual contributor/supervisory], and decision-making scope is [describe].
2) Transferability and scope of assignments: Your role [does/does not] include future rotations or geographic transfers. For roles that include broader transferability, our policy provides [describe] adjustments.
3) Base pay: Your current monthly base is ¥[amount], determined by [market range/grade and performance]. Employees in comparable roles receive base pay within the range of ¥[min]–¥[max] depending on experience and performance.
4) Bonuses: You are eligible for [summer/winter] bonus based on [company/individual performance]. For the last fiscal year, your total bonus was ¥[amount]. Eligibility and amounts for comparable roles are based on the same criteria.
5) Allowances: You receive the following allowances: [position/skill/family/housing/area/shift], totaling ¥[amount] per month. Eligibility and amounts are applied consistently according to our published rules. For example, the [skill allowance] requires [qualification], which you [hold/do not hold].
6) Overtime and premium pay: For [number] hours of overtime, you received premiums in accordance with statutory rates and company policy (including additional premium for hours exceeding 60 per month as applicable).
We believe the above reflects equal and balanced treatment consistent with Japanese law and our internal policies. If you would like further detail on any item or wish to discuss this explanation, please contact [HR contact] within [timeframe].
Remediation Framework
- Investigation
- Validate data integrity; confirm correct mapping of bonuses and each allowance to MHLW categories; reconcile payroll extracts to ledger totals.
- For each flagged cohort, conduct root-cause review: job architecture misalignment, inconsistent allowance eligibility, performance rating calibration, market range drift, or legacy status-based rules.
- For non-regular workers, explicitly test differences against the three MHLW axes and document evidence.
- Decision and correction
- Prioritize high-risk gaps (gender-based, status-only differences) and roles with high employee impact. Target to correct base pay where the gap is structural and recurring; adjust allowances/bonus eligibility rules where the issue is categorical.
- Implement corrections prospectively in the next feasible payroll cycle; where gaps are attributable to past policy non-compliance, assess retroactive adjustments. For dispatched workers, coordinate with user enterprise for immediate alignment.
- Retroactivity and records
- While no fixed statutory back-pay period is prescribed for equal treatment gaps, unpaid wage claims generally have a statute of limitations (extended to five years for wages from April 2020 reforms); consult counsel to determine appropriate retroactivity and document rationale.
- Issue amended payslips if required and keep detailed remediation logs, approvals, and communications.
- Governance and monitoring
- Update pay-setting policies, job descriptions, allowance rules, and labor-management agreements. Train managers and HR on new rules.
- Establish quarterly dashboards: unadjusted and adjusted gaps by job family and employment status; monitor overtime premium compliance; track explanation requests and response SLAs.
- Provide internal briefings to executives and (if applicable) the union. Prepare content for the next public disclosure cycle, including narrative context on remediation progress.
- Appeals and dispute resolution
- Provide employees with a channel to request re-review. Escalate unresolved issues to HR-legal review. Offer access to the company grievance procedure and, where appropriate, to the Prefectural Labour Bureau’s individual labor dispute conciliation.
Compliance Calendar
- April: Close prior fiscal year datasets (if April–March fiscal year). Lock final bonus data as soon as paid; validate payroll aggregates.
- May–June: Run mandatory gender wage gap calculations (All, Regular, Non-regular). Draft disclosure narrative and internal approvals.
- By end of Q1 following fiscal year-end (as a practical benchmark): Publish wage gap indicators on the company website and upload to the MHLW Action Plan Database; update the Action Plan if scheduled.
- Quarterly: Run internal pay equity dashboards and overtime premium compliance checks; review dispatched worker equal treatment alignment against the chosen method and renew labor-management agreements before expiry.
- Annually (or on major policy change): Update job architecture, allowance eligibility matrices, and market ranges; re-train HR and managers on MHLW equal pay guidelines and explanation protocols.
GDPR and Data Management
- Japan’s data privacy regime is governed by the Act on the Protection of Personal Information (APPI) and related guidelines. Employers must specify purposes of use for HR/pay equity analytics, restrict processing to those purposes, and notify employees of the purposes and categories of data processed; publish or internally post a privacy notice covering analytics.
- Collection of special care-required personal information (e.g., race, creed, social status, medical history, disability, criminal history) requires special care and, in many cases, prior consent. Limit analytics to data necessary for lawful purposes; gender is generally permissible for mandatory disclosures, but avoid collecting sensitive attributes not required by law or legitimate HR purposes.
- For cross-border transfers, APPI requires prior data subject consent unless using permitted mechanisms (e.g., outsourcing to a processor under proper supervision, joint use arrangements) and obliges the sender to provide information about the foreign country’s data protection regime and the recipient’s safeguards. Keep vendor contracts with data processing clauses, audit rights, and breach notification terms.
- Use pseudonymously processed information internally for analytics to reduce risk and enable secondary uses within APPI rules; remove direct identifiers and maintain key tables separately with strict access controls. For external sharing, consider anonymously processed information where feasible to avoid re-identification risk, following technical standards.
- Implement security safeguards proportionate to risk: access control by role, encryption at rest and in transit, logging and monitoring, least-privilege governance for HR/Payroll, and periodic security reviews of vendors and internal systems.
- Respect employee data subject rights under APPI: respond to requests for disclosure, correction, addition, deletion, or cessation of use/third-party provision within statutory timeframes; maintain a helpdesk contact in the privacy notice.
- Set clear retention periods: keep pay equity analysis inputs only as long as necessary for compliance and defense of claims, then delete or anonymize; align retention with wage claim limitation periods and internal litigation hold policies.
- For transparency, coordinate HR, Legal, and Privacy to ensure that the gender wage gap disclosure and any internal analytics summaries do not inadvertently expose personal data; publish only aggregated indicators as required.
Useful Resources
- Ministry of Health, Labour and Welfare (MHLW) – Equal Pay for Equal Work (Japanese): https://www.mhlw.go.jp/stf/seisakunitsuite/bunya/0000190591.html
- MHLW Q&A on Gender Wage Gap Disclosure (Japanese): https://www.mhlw.go.jp/stf/seisakunitsuite/bunya/0000197226_00003.html
- General Business Owner Action Plan Database (Women’s Participation Act) – disclosure portal (Japanese): https://positive-ryouritsu.mhlw.go.jp/positivedb/
- Labor Standards Act (e-Gov Law Translation, English): https://www.japaneselawtranslation.go.jp/en/laws/view/3921
- Equal Employment Opportunity Act (e-Gov Law Translation, English): https://www.japaneselawtranslation.go.jp/en/laws/view/3985
- Act on Improvement of Employment Management for Part-Time Workers and Fixed-term Employees (e-Gov Law Translation, English): https://www.japaneselawtranslation.go.jp/en/laws/view/4107
- Worker Dispatch Act (e-Gov Law Translation, English): https://www.japaneselawtranslation.go.jp/en/laws/view/3330
- Act on the Promotion of Women’s Participation and Advancement in the Workplace (e-Gov Law Translation, English): https://www.japaneselawtranslation.go.jp/en/laws/view/3179
- MHLW – Work Style Reform resources (Japanese): https://www.mhlw.go.jp/stf/seisakunitsuite/bunya/0000148322.html
- Government statistical references for wage and labor costs (Japanese, e-Stat): https://www.e-stat.go.jp/
Important Disclaimer: This guide is based on information available as of August 2025 and is subject to change. The content provided does not constitute legal advice and is for informational purposes only. Total Rewards professionals should seek qualified legal counsel and local employment law expertise before making decisions or taking actions based on this guidance. Laws and regulations vary by jurisdiction and can change frequently. Always consult with local legal experts and relevant government agencies for the most current requirements.