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Japan's FDI Regime Grows Teeth: What the 2026 FEFTA Reform and 'J-CFIUS' Mean for Inbound M&A

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Introduction

For most of the past decade, foreign investors treated Japan's national security screening regime as a box-ticking exercise. The Foreign Exchange and Foreign Trade Act (外国為替及び外国貿易法, Gaikoku Kawase oyobi Gaikoku Bōeki-hō), universally abbreviated as FEFTA, required pre-closing notification for certain inbound investments in sensitive sectors, but the government had never actually ordered an investor to halt or unwind a transaction. The suspension and divestment powers introduced in the post-2017 reforms sat dormant, a theoretical risk that rarely changed how deals were structured or priced.
That era has ended. In April 2026, the Minister of Finance issued the first formal suspension recommendation in the history of the modern FEFTA regime. Weeks later, on May 29, 2026, the Diet passed a sweeping amendment to FEFTA, which was promulgated on June 5, 2026. Together, these two events signal that Japan is moving decisively from a light-touch, notification-based system toward an active, security-focused screening regime that looks increasingly like the U.S. Committee on Foreign Investment in the United States (CFIUS).
For any foreign company contemplating an acquisition, a strategic investment, or even an internal group reorganization that touches a Japanese entity, the calculus has changed. This article explains what the 2026 FEFTA amendment does and what foreign investors should do now to prepare.

Background: From Dormant Tool to Active Enforcement

Japan's inbound investment screening has long operated on paper through FEFTA Articles 27 and 28, which allow the Minister of Finance and the competent sector ministers to review, recommend changes to, and ultimately order the suspension or divestment of investments that threaten national security. The list of designated business sectors covers areas such as defense, dual-use technology, critical minerals, energy and infrastructure, cybersecurity, and, more recently, advanced technologies including artificial intelligence.
In practice, however, the regime functioned almost entirely through pre-closing notification and informal guidance. No investor had ever been ordered to stop or reverse a deal. That changed on April 22, 2026, when the Minister of Finance, jointly with the relevant competent ministers, issued the first suspension recommendation since the suspension and divestment regime was introduced. The activation of this previously dormant tool was a clear message: Japan is now willing to use the enforcement powers it has held in reserve.
The legislative reform that followed should therefore be read against this backdrop. It is not an abstract modernization exercise. It is the codification and expansion of a regime that the government has just demonstrated it is prepared to enforce.

The Legislative Timeline

The 2026 amendment moved through the Japanese legislative process over roughly half a year:
  • January 7, 2026 — The Council on Customs, Tariff, Foreign Exchange and Other Transactions (関税・外国為替等審議会), an advisory body to the Ministry of Finance, published its report on the appropriate design of Japan's FDI screening regime.
  • March 17, 2026 — The Cabinet approved the amendment bill and submitted it to the Diet.
  • May 29, 2026 — The Diet passed the Act for Partial Amendment of the Foreign Exchange and Foreign Trade Act.
  • June 5, 2026 — The amendment was promulgated.
  • In force — On a date to be specified by Cabinet Order, within one year of promulgation. Implementing regulations and the detailed scope of covered transactions are expected to be issued before the effective date, likely in 2027.
The window between promulgation and entry into force matters. Foreign investors with transactions in the pipeline have a finite period to understand the new requirements and adjust deal structures before the expanded regime applies.

What the 2026 FEFTA Amendment Changes

The reform rests on several pillars. Each addresses a gap that distinguished Japan's regime from its international peers.

1. Indirect Acquisitions Now in Scope

Under the current law, FEFTA's screening applies essentially to direct acquisitions of shares in Japanese entities. An investor who acquired a Japanese company indirectly, by purchasing a foreign holding company that in turn owned the Japanese target, could fall outside the notification net.
The amendment closes this loophole. Certain indirect acquisitions of Japanese companies will now trigger filing requirements. This aligns Japan with the U.S., EU, and Australian regimes, all of which already capture indirect and upstream changes of control. For multinational groups, the practical consequence is significant: a transaction negotiated entirely outside Japan, involving no Japanese counterparty, may now require a Japanese filing if a Japanese subsidiary sits somewhere in the target's corporate tree.

2. Call-in Powers: Post-Closing Intervention

Perhaps the most consequential change is the introduction of a call-in power, allowing the government to review and intervene in investments after closing, even where no prior notification was required, when heightened national security concerns emerge. An investment that did not require pre-clearance can still be examined later, and potentially subjected to conditions or unwinding, if the government determines it poses a risk.
For deal-making, this means that the absence of a filing obligation no longer equals the absence of regulatory risk. Buyers in sensitive sectors will need to assess national security exposure even for transactions that fall below the formal notification threshold.

3. A "Japanese-Style CFIUS" Inter-Agency Framework

The amendment establishes a structured, multi-ministry consultation process that commentators have nicknamed "J-CFIUS." Under the new framework, the Minister of Finance and the sector ministers conducting a FEFTA review must seek the opinions of the Prime Minister, the Minister for Foreign Affairs, and the heads of other relevant administrative authorities.
This is modeled loosely on CFIUS, the inter-agency committee in the United States chaired by the Treasury Secretary that draws in defense, commerce, state, and intelligence agencies. By formalizing inter-ministerial input, Japan is institutionalizing a whole-of-government approach to investment review, rather than leaving decisions to the Ministry of Finance and a single sector ministry. For investors, this likely means more thorough, and potentially slower, reviews for transactions that raise genuine security questions.

4. Codified Risk-Mitigation Measures

The reform codifies the government's ability to impose risk-mitigation conditions as an alternative to outright prohibition. Rather than simply approving or blocking a deal, the authorities will have an explicit legal basis to clear a transaction subject to undertakings, such as governance restrictions, information-security commitments, or limits on access to sensitive technology.
This is again familiar from CFIUS practice, where mitigation agreements (board carve-outs, security officers, technology firewalls) are routinely used to allow deals to proceed. The codification gives both sides a clearer legal foundation to negotiate conditions, which can be the difference between a deal that closes and one that collapses.

5. Strengthened Anti-Circumvention Rules

Finally, the amendment expands anti-circumvention provisions designed to prevent investors from structuring around the screening regime, for example through nominee arrangements, layered holding structures, or artificial divisions of shareholdings. Combined with the new coverage of indirect acquisitions, these rules narrow the structuring options previously used to avoid notification.

Practical Impact on Inbound Deals

For foreign companies and funds planning transactions in Japan, the reform has several concrete implications:
  • Deal certainty is now a real variable. With the suspension power activated and call-in review available post-closing, the regulatory risk premium for sensitive-sector deals is no longer theoretical. It should be priced and addressed in deal documentation.
  • Structuring around the regime is harder. The expansion to indirect acquisitions and the strengthened anti-circumvention rules close off many of the structures previously used to avoid notification.
  • Timelines will lengthen for sensitive deals. Inter-agency consultation under the J-CFIUS framework adds steps to the review process. Transaction calendars should build in additional buffer for security-sensitive targets.
  • Mitigation packages become a negotiation tool. With risk-mitigation measures codified, buyers should come prepared to offer governance, information-security, and technology-access undertakings, much as they would in a CFIUS process.
  • Internal reorganizations are not exempt. Group restructurings that change the ownership chain above a Japanese subsidiary may now require analysis, even where no third-party buyer is involved.

Preparing for the New Regime: A Compliance Checklist

While the exact effective date and implementing regulations are still pending, foreign investors can take the following steps now:
  1. Map your Japanese footprint. Identify every Japanese entity in your corporate group and assess whether any operates in a designated business sector (defense, dual-use technology, critical minerals, infrastructure, cybersecurity, AI, and related fields).
  2. Re-examine pipeline transactions. For any deal expected to close around or after the effective date, analyze whether the expanded scope, including indirect acquisitions, creates a new filing obligation.
  3. Build national-security review into diligence. Treat FEFTA exposure as a standard diligence workstream for Japan-touching deals, not an afterthought.
  4. Plan for longer timelines. Add buffer to transaction calendars for sensitive-sector targets to accommodate inter-agency consultation.
  5. Prepare a mitigation strategy. For higher-risk transactions, consider in advance what governance and information-security undertakings you could offer to secure clearance.
  6. Monitor the implementing regulations. The detailed scope of covered indirect acquisitions and call-in triggers will be set out in subordinate legislation expected before the law takes effect. Track these closely.
  7. Engage local counsel early. Coordination between the Ministry of Finance, sector ministries, and now additional authorities makes early, informed engagement essential.

Conclusion

The 2026 FEFTA amendment, combined with Japan's first-ever suspension recommendation in April, marks a structural shift in how Japan treats inbound investment. The regime is no longer a formality. It now captures indirect acquisitions, reaches into closed deals through call-in powers, channels decisions through a CFIUS-style inter-agency process, and gives the government codified tools to impose conditions or block transactions.
For foreign investors, this is not a reason to avoid Japan, which remains an open and attractive destination for capital. It is a reason to approach Japanese deals with the same national-security discipline that sophisticated investors already apply in the U.S., EU, and Australia. The companies that prepare early, map their exposure, and build review into their deal process will continue to transact smoothly. Those that treat FEFTA as an afterthought may find that the regime now has the teeth to stop them.
This article is provided for general informational purposes only and does not constitute legal advice. The 2026 FEFTA amendment will take effect on a date to be set by Cabinet Order, and key details will be determined by implementing regulations not yet finalized. Foreign investors should obtain advice tailored to their specific circumstances before acting. For guidance on inbound investment, M&A, and national security screening in Japan, contact Japan Gateway Services.