How “Whistleblower-First” is Redesigning Internal Reporting Systems

The Era of “Whistleblower-First” Has Arrived

In July 2026, Japan’s revised Whistleblower Protection Act will be fully enforced. The core of this revision is the concept of “whistleblower-first.” The legal重心 has shifted significantly from “protecting businesses” to “protecting whistleblowers.”

However, many SME owners express concerns like: “We’re told to set up an internal reporting system, but it’s costly,” “Won’t this lead to more malicious reports?” or “Does our company even need internal reporting?”

These concerns are valid. But viewing this revision as a burden means missing a major opportunity. An internal reporting system isn’t just a compliance tool—it functions as a management device that makes “invisible risks” visible.

This article outlines the key points of the revised law and proposes a practical design for SMEs to achieve “whistleblower-first” while handling malicious reports.

Three Key Points of the Revised Law

First, let’s review the essentials of the revised Whistleblower Protection Act.

1. Expanded Scope of Reportable Matters

Previously limited to “criminal offenses” or “Food Sanitation Act violations,” the scope has been expanded to all “legal violations by businesses.” This means even minor violations can be subject to internal reporting.

2. Enhanced Whistleblower Protection

Dismissal or disadvantageous treatment due to reporting is prohibited, with stricter penalties for violations. Additionally, actions that could identify the whistleblower are also banned. For example, sharing report details internally without concealing the whistleblower’s department or position.

3. Mandatory for Businesses

Businesses with over 300 regular employees must establish an internal reporting hotline (from July 2026). While SMEs are not directly obligated, more clients are asking about the existence of internal reporting systems. This trend is spreading across the supply chains of listed companies.

These changes mean that lacking an internal reporting system itself becomes a risk. Because if a whistleblower reports externally (to authorities or media), the business loses the chance to respond.

Why “Whistleblower-First” Matters for SMEs

Some executives might think, “Nothing like that happens at my company.” But that may simply mean no employee has the courage to report.

In fact, at a manufacturing SME I supported, internal reporting uncovered the following issues:

• Falsification of quality control data (over the past 5 years)
• Unpaid overtime (abuse of fixed overtime pay system under the guise of management positions)
• Unreasonable price reduction demands on subcontractors

Management was shocked, claiming they “didn’t know” about any of these. But on the ground, employees had given up, thinking “speaking up won’t change anything.”

An internal reporting system is a tool that visualizes risks management “wants to see but can’t.” A “whistleblower-first” design means creating an environment where whistleblowers can speak up safely, ultimately enhancing management’s risk control capabilities.

Handling Malicious Reports: Think “1 to 99,” Not “0 or 100”

A common concern with “whistleblower-first” is handling malicious reports (bad-faith internal accusations or false reports). The revised law states that reports made “solely for wrongful purposes” are not protected.

However, in practice, proving “solely wrongful purpose” is often difficult. The key is not to judge malicious reports as a binary “present/absent” (0/100).

From my experience, many malicious reports stem from dissatisfaction with performance reviews or interpersonal conflicts. In other words, the report isn’t “false” but rather a “subjective interpretation.”

For such cases, the following approaches are effective:

• Standardize the fact-checking process: Separate the report into “facts” and “opinions,” and request objective evidence (emails, recordings, photos, etc.)
• Don’t question the reporter’s intent: Even if personal grudges are involved, investigate if the content contains factual elements.
• Ensure anonymity: Use mechanisms (like external hotlines) that prevent the whistleblower from being identified, reducing retaliation risk.

The biggest risk is letting fear of malicious reports render the system a mere formality. Instead, design the system assuming malicious reports may occur to enhance its effectiveness.

Three Actions SMEs Can Take Now for Internal Reporting

Here are three immediate actions SMEs can take to comply with the revised law.

1. Use an External Hotline

Setting up an internal hotline can be costly and operationally burdensome. I recommend using external hotline services offered by law firms or social insurance and labor consultant offices.

Many services are available for around $200–$600 per month, with initial costs of a few hundred dollars. The advantage of an external hotline is complete anonymity for the whistleblower. When internal staff handle the hotline, it’s easier to guess who reported.

2. Clarify Reporting Rules

Clearly state reporting rules in your work rules or compliance regulations. At minimum, include the following:

• Scope of reportable matters (all legal violations)
• Reporting methods (email, phone, mail, etc.)
• Whistleblower protection (prohibition of disadvantageous treatment)
• Investigation process (investigation period, notification of results)
• Handling of false reports (subject to disciplinary action)

The key is to give whistleblowers the reassurance that they are protected. At the same time, clearly stating that false reports are subject to disciplinary action can deter malicious reports.

3. Top Management Commitment

The success of an internal reporting system depends on how seriously top management takes it. Leaders must communicate internally that “internal reporting is a mechanism to improve the company” and respond promptly and sincerely when reports are made.

At a company I supported, the president personally distributed a video to all employees explaining “the purpose and how to use the internal reporting system.” As a result, five reports were received in the first year, three of which led to correcting actual legal violations.

Conclusion: Turn Internal Reporting into a “Growth Engine”

The revised Whistleblower Protection Act is not a “burdensome regulation” for SMEs but an opportunity to detect risks early and support healthy growth.

A “whistleblower-first” design means protecting whistleblowers, which ultimately improves the quality of management decisions. Organizations without mechanisms to hear frontline voices will eventually face major incidents.

Start with what you can do now: introduce an external hotline, revise your work rules, and send a top management message. None of these are difficult. But that first step will be the first step in protecting your company from “invisible risks.”

Make your internal reporting system a “real implementation tool” for management, not just a decoration. Why not start redesigning it today?