Customer Harassment Law: Japan Mandates Employer Protections from October 2026
Labor IssuesLast updated: 2026-04-06

Customer Harassment Law: Japan Mandates Employer Protections from October 2026

Key Takeaways

  • All businesses must implement anti-customer-harassment measures from October 2026
  • Legal definition based on three elements: socially inappropriate conduct, harm to work environment, and business-related context
  • Employers must establish clear policies, consultation systems, and post-incident responses
  • Non-compliant companies face administrative guidance and potential public naming

Background: Why Customer Harassment Legislation?

Customer harassment ("kasu-hara") — abusive behavior from customers, clients, and business partners — has become a serious social problem in Japan. A Ministry of Health, Labour and Welfare survey found that approximately 15% of workers experienced customer harassment within the past three years.

The revised Act on Comprehensive Promotion of Labor Policies (2025 amendment), effective October 2026, legally mandates all employers to take employment management measures against customer harassment.

The revised law defines customer harassment as conduct meeting all three elements:

  1. Business-related conduct — from customers, clients, or facility users
  2. Socially inappropriate — exceeding legitimate complaints or requests through unreasonable demands, verbal abuse, or intimidation
  3. Harmful to the work environment — causing significant adverse effects on workers' ability to perform their duties

Examples of Customer Harassment

TypeExample
Verbal abusePersonal insults, demands to "quit your job"
Excessive demandsForcing employees to kneel, unreasonable monetary claims
Prolonged detentionOccupying a store for hours demanding attention
IntimidationThreats to "expose you on social media" or "sue"
Repeated contactPersistently calling or visiting with the same demand

Required Employer Measures

The law mandates three categories of measures, following the same framework as the existing workplace harassment prevention law (Article 30-2):

1. Clear Policy and Communication

  • Establish and publicize an anti-harassment policy
  • Develop response manuals
  • Conduct employee training

2. Consultation System

  • Set up a consultation desk (in-house or outsourced)
  • Protect complainant privacy
  • Prohibit retaliation against those who report

3. Post-Incident Response

  • Prompt and accurate fact-finding
  • Support measures for affected workers (reassignment, mental health care)
  • Implement recurrence prevention measures

Consequences of Non-Compliance

  • Administrative guidance (advice, directions, recommendations)
  • Public naming of non-compliant companies
  • Civil liability for breach of the duty of care to employees

Relationship to Other Harassment Laws

Japan now has a comprehensive framework covering workplace power harassment (2020), sexual harassment (2007 revision), maternity harassment (2017), and customer harassment (October 2026).

This article provides general legal information and does not constitute legal advice. For specific legal issues, please consult with a qualified attorney.

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