As global mobility increases, more jurisdictions are deploying anti-departure tax regimes to protect their tax bases, including exit taxes on unrealised gains and long-tail provisions extending liability after a change of residence. This session surveys recent and proposed measures across Europe, the UK and the US, including Belgium’s anticipated regime and the US’s OECD Commentary observation. Speakers will examine how these rules interact, the double-taxation risks they create, and why tight cross-border coordination is now essential for effective outbound planning.