If you lead corporate development or advise on international transactions, you already know that closing a deal across borders in 2026 looks nothing like it did five years ago. Cross-border dealmaking has not slowed down — one tracker put first-quarter 2026 cross-border deal value at $319.1 billion, and cumulative cross-border activity through the first nine months of the year reportedly reached $1.2 trillion, according to Mergermarket-attributed figures. Yet volume alone tells only part of the story. Beneath those numbers sits a thicket of regulatory screening regimes, inconsistent disclosure standards, and geopolitical friction that can derail even well-financed transactions. This article is written for corporate development teams and deal advisors handling international transactions, and it walks through the structural challenges reshaping cross-border M&A today — from foreign investment screening to the information infrastructure, including a properly organized data room, that keeps a deal team’s diligence effort coherent across jurisdictions.
Why Cross-Border Deals Are Harder to Close Today
A generation ago, the biggest obstacles in cross-border M&A were largely commercial: valuation gaps, currency risk, cultural fit. Those factors still matter, but they have been overtaken by a far more unpredictable variable — government intervention. A recent dealmaker survey found that 75% of respondents cite foreign direct investment (FDI) screening as the single greatest barrier to closing cross-border transactions, and more than seven in ten said they had already restructured or withdrawn a deal because of regulatory or geopolitical concerns. That is not a marginal friction point; it is now a primary determinant of whether a transaction gets done at all.
Regulatory and FDI Screening Complexity
Foreign investment review has become stricter, slower, and more unpredictable across nearly every major economy. In the United States, Committee on Foreign Investment in the United States (CFIUS) data shows the deal-blocking rate climbed to roughly 8% in 2025, up from about 3% in 2023. Average review timelines have stretched to six to nine months, compared with three to four months historically. Scrutiny is not evenly distributed: AI and semiconductor transactions face review in roughly 90% of cases, telecom infrastructure deals in about 80%, and energy or critical minerals transactions in around 70%. A deal team that treats CFIUS as a formality rather than a central workstream is setting itself up for a costly delay.
Europe has added its own layer of complexity. The EU’s foreign subsidies regime requires notification whenever a target, a merging party, or a joint venture generates combined EU turnover of at least €500 million alongside large foreign financial contributions. A 2026 proposal would lift that threshold to €600 million, but €500 million remains the operative figure deal teams must plan around today. Meanwhile, Australia’s overhauled foreign investment screening regime became operational on January 1, 2026, and — critically — it is mandatory and suspensory, meaning qualifying transactions can no longer close before clearance is granted. That single change has forced acquirers to rebuild their Australian deal timelines from the ground up.
A Patchwork With No Single Playbook
What makes this especially difficult is that none of these regimes are harmonized. A transaction that clears CFIUS review may still trip the EU’s subsidy notification threshold, require a separate Australian filing, and face an entirely different screening test in a third jurisdiction where the target has operations. Deal teams cannot rely on a single regulatory playbook; they must build a jurisdiction-by-jurisdiction map before signing, not after.
Multi-Jurisdiction Filing Obligations
Beyond FDI screening, most cross-border transactions trigger a cascade of parallel filing and clearance obligations. A typical mid-market cross-border deal might require:
-
Antitrust or competition clearance in each jurisdiction where the parties generate qualifying revenue.
-
FDI or national security screening in the target’s home country and any jurisdiction with critical infrastructure exposure.
-
Sector-specific regulatory approval — banking, insurance, telecoms, or defense licenses, for example.
-
Works council consultation or labor notification requirements in applicable European jurisdictions.
-
Tax authority notifications tied to restructuring, transfer pricing, or withholding obligations.
Sequencing these filings is its own discipline. Some clearances must be obtained before signing; others can run in parallel post-signing. Missing a dependency between filings — for example, triggering an EU notification before a CFIUS decision is final — can add months to an already compressed timeline.
Due Diligence Across Differing Disclosure Standards
Even once the regulatory map is clear, due diligence itself becomes harder across borders. Financial reporting conventions, employment law disclosure norms, and environmental liability standards vary significantly by jurisdiction, and what counts as a routine disclosure in one market may be withheld or simply not tracked in another. This is where a well-organized data room earns its keep: it gives a deal team one authoritative place to reconcile documents produced under different accounting frameworks, languages, and regulatory expectations, rather than chasing files through scattered email threads and local counsel.
Common Due Diligence Friction Points
Deal teams handling international targets consistently run into the same set of obstacles:
-
Financial statements prepared under local GAAP variants rather than IFRS or US GAAP, requiring reconciliation before valuation models are trustworthy.
-
Employment contracts and benefits obligations governed by labor codes that differ sharply from the acquirer’s home jurisdiction, including mandatory severance and works council rights.
-
Environmental and permitting records held by regional authorities with inconsistent digitization and disclosure practices.
-
Related-party transactions and beneficial ownership structures that are harder to verify in jurisdictions with limited corporate transparency registers.
-
Data protection obligations — particularly under GDPR-style regimes — that restrict what personal data can even be shared during diligence without additional safeguards.
Structuring the Review Environment for Multiple Regulators and Counterparties
Because so many parties need access to diligence materials at different times — internal deal teams, outside counsel in multiple jurisdictions, antitrust regulators, and eventually the target’s own employees — the document environment needs tiered permissions from day one. A properly structured virtual deal room separates materials by sensitivity and audience: competitively sensitive pricing data walled off until late-stage clean-team review, regulatory submission packages segregated for counsel preparing filings, and employee-related records restricted under applicable privacy law. Treating this secure workspace as an afterthought, rather than as core deal infrastructure, is one of the most common and avoidable causes of diligence delay.
Language, Cultural Barriers, and Tax Structuring
Language and cultural barriers compound the documentation problem. Contracts, regulatory correspondence, and even internal management reporting may exist only in the target’s local language, which slows review and increases the risk of mistranslation on material terms. Negotiation style and decision-making pace also vary — what one side reads as diligence thoroughness, the other may read as stalling, and misreading those signals can sour a negotiation before terms are even on the table.
Tax and structuring complexity rounds out the picture. Cross-border acquirers must navigate withholding tax treaties, transfer pricing rules, permanent establishment risk, and post-closing integration structures that satisfy tax authorities in two or more countries simultaneously. Structuring decisions made early — such as whether to acquire assets or shares, or where to locate a holding entity — have consequences that ripple through FDI screening, antitrust filings, and the eventual data room content itself, since each regulator may require different supporting documentation for the same transaction.
Bringing It Together
None of these challenges are new in isolation, but their combination — stricter screening, inconsistent disclosure norms, and compressed timelines — is what makes cross-border M&A in 2026 meaningfully harder than domestic dealmaking. Deal teams that invest early in jurisdictional mapping, build filing sequences with real dependencies in mind, and organize their repository with tiered access from the outset tend to move through diligence and regulatory review with far fewer surprises. The transactions that stall are rarely the ones with bad fundamentals; they are the ones where information, access, and regulatory sequencing were never properly structured in the first place.