How does the 2026 UK/EU Treaty in relation to Gibraltar protect the movement of frontier workers who live in Spain and work in Gibraltar?
Short answer
Since the treaty's provisional application on 15 July 2026, routine immigration checks at the land frontier have been removed, so frontier workers cross between Spain and Gibraltar without border queues. The treaty also gives frontier workers a dedicated legal framework, including equal treatment in employment and coordination of social security between the two systems.
Detailed answer
HM Government of Gibraltar estimates that around 15,500 frontier workers cross between Gibraltar and Spain every day, about half of Gibraltar's workforce. The treaty establishes a permanent framework for a fluid land frontier to protect that movement. The treaty's frontier workers part covers people who live in one territory and work in the other, returning home at least once a week. EU citizens living in Spain may take up frontier employment in Gibraltar, and UK nationals living in Gibraltar have corresponding rights to work in Spain. Protections include: Equal treatment in employment conditions, including pay. Retention of worker status in certain circumstances, such as illness, involuntary unemployment or vocational training. A Protocol on Social Security Coordination, so contributions are paid to one system and periods of insurance count across both. Rules for workers temporarily posted across the frontier. A financial mechanism to promote cohesion between Gibraltar and the neighbouring Spanish area, including on training and employment. Although routine checks have ended, the legal border remains. Frontier workers should carry the identity documents appropriate to their nationality and status.