EU Cross-Border M&A Faces Overlapping FDI, Merger and FSR Rules
Cross-border deal teams executing transactions with EU exposure must account for overlapping merger control, FDI screening and FSR requirements that can derail deals even after EU merger clearance is granted.
The EU has released draft merger guidelines (consultation closed June 2026, final expected Q4 2026) that expand merger control analysis to include economic security, resilience and competitiveness goals alongside traditional consumer welfare tests, while revised EU FDI screening rules (effective 2027) expand national security review scope to low-threshold minority investments, and FSR enforcement is ramping up for foreign subsidies that distort EU markets. Previously siloed, the three regimes now operate as an interconnected toolkit with overlapping jurisdiction for many transactions, creating risk of conflicting outcomes (e.g., a deal cleared by EU merger authorities may still be blocked by national FDI powers). Deal teams should conduct early, comprehensive regulatory mapping to identify all applicable filing obligations across the three regimes, sequence reviews strategically, and build risk allocation for conflicting regulatory outcomes into transaction documents.