A new UK-Gibraltar-EU treaty enables free border movement, removes checks, and integrates Gibraltar into EU systems by April 10, 2026, while preserving UK sovereignty and requiring parliamentary approval.

In exchange for granting Spain limited veto power over non-EU residency permits, a new post-Brexit treaty between the UK, Gibraltar, and the EU guarantees free movement across the Gibraltar-Spain border, eliminates physical checks, and upholds UK sovereignty. The deal, which is pending ratification, would integrate Gibraltar into the EU Entry/Exit System by April 10, 2026, create dual border checks, and bring the territory into compliance with EU fuel and environmental regulations. It establishes a joint UK-Spain entity for airport operations, permits direct flights to the EU, and protects Gibraltar's autonomy. The agreement needs the UK and EU parliaments' approval and does not change sovereignty claims.