Relationship dossier
Jersey
United Kingdom
Relationship assessment
Close constitutional and practical cooperation between Jersey and the United Kingdom
Jersey toward United Kingdom
+50Jersey’s government cooperates with the UK through shared arrangements including the Common Travel Area and customs arrangements. Jersey also coordinates with the UK on international matters, while retaining responsibility for its domestic affairs.
United Kingdom toward Jersey
+75The UK is responsible for Jersey’s defence and international relations and represents Jersey internationally in relevant contexts. The UK consults Jersey on extending international agreements and on UK legislation affecting the island, consistent with Jersey’s self-governing status.
Overall relationship
+75The relationship is structured by Jersey’s status as a self-governing Crown Dependency: the island controls its domestic affairs, while the UK provides defence and handles international relations. Shared travel and customs arrangements and sustained constitutional coordination make the relationship closely cooperative.
How to read these scores
Scores are rough judgments, not objective measurements or current verification. Directional scores describe government policy and conduct, not public opinion. The overall score is an independent estimate, never an average.
- −100
- Extreme sustained hostility
- −50
- Substantially adversarial
- 0
- Mixed or neutral, supported by knowledge
- +50
- Substantially cooperative
- +100
- Exceptionally close sustained partnership
“Not assessed” means there is no recorded score. Pair existence makes no claim about diplomatic recognition or established relations.
Relationship context
Overview
Jersey is a self-governing Crown Dependency, not part of the United Kingdom. Its government manages domestic affairs while the UK is responsible for its defence and international relations. Jersey participates in arrangements with the UK including the Common Travel Area and customs arrangements, and the two governments maintain close constitutional and practical cooperation.
Key developments
Jersey participates with the UK in the Common Travel Area, supporting movement arrangements across the islands.
Jersey and the UK maintain customs arrangements linked to their constitutional relationship and Jersey’s separate domestic jurisdiction.
Major uncertainties
- The scope and implementation of Jersey’s participation in UK-related tax, customs and travel arrangements may vary over time.
- The details of UK consultation with Jersey on international agreements and legislation are not specified.