Cross-Border M&A: The 2026 Regulatory Landscape.
The New FDI Reality
Foreign direct investment (FDI) screening has expanded dramatically. In 2025 alone, 8 countries introduced or significantly tightened FDI regimes. The EU's FDI Screening Regulation is now operational in all member states, the US CFIUS process has become more rigorous under recent executive orders, and countries including India, Japan, and Australia have expanded their screening mandates. Dealmakers must factor in extended review timelines — average FDI clearance now takes 4-6 months in most jurisdictions.
Antitrust Enforcement Trends
Antitrust authorities are increasingly aggressive. The European Commission has adopted a more interventionist approach under the Digital Markets Act and expanded theories of harm in horizontal mergers. In the US, both the DOJ and FTC continue to challenge mergers that would consolidate market power, even in traditional industries. The UK's Competition and Markets Authority has emerged as one of the most active enforcers, particularly in technology and life sciences sectors. Filing thresholds have been lowered in several jurisdictions, catching more transactions.
National Security and Critical Technologies
National security reviews have expanded beyond defence and critical infrastructure to encompass data privacy, artificial intelligence, semiconductor supply chains, and biotechnology. Several jurisdictions now require mandatory declarations for transactions involving sensitive personal data. The EU's proposed 'Fifth Freedom' framework and the US Outbound Investment Rule signal a new era of controls on cross-border technology transfers. These reviews can take 6-12 months and often result in mitigation agreements, divestment orders, or outright prohibitions.
Due Diligence and Deal Structuring
Given this environment, acquirers should: conduct regulatory due diligence early in the deal process; structure transactions with regulatory risk allocation provisions (including reverse break fees and extended closing periods); prepare multiple deal structures (full acquisition vs. joint venture vs. asset purchase) that can accommodate regulatory requirements; and engage with regulators proactively. Early engagement — including pre-notification discussions and the preparation of robust economic analyses — can substantially reduce clearance timelines.