Dual Nationals Face UK Entry Ban Without Correct Passport from 2026
British citizens holding dual nationality have been issued an urgent warning that they could be refused entry back into the United Kingdom from February 25, 2026, if they travel abroad without the correct documentation. This alert comes as the UK government prepares to fully enforce its Electronic Travel Authorisation (ETA) scheme, which will require digital clearance for all visitors, including those from visa-exempt nations.
Stricter Border Controls Under New ETA System
From late February 2026, the UK will implement stricter border controls through its ETA system, affecting travellers from 85 countries, including the United States, Canada, and France. The scheme mandates that all individuals wishing to enter the UK must obtain digital permission via an ETA or an eVisa before arrival. This requirement applies across all transport modes, including aeroplanes, ferries, and Eurostar services, with carriers conducting rigorous pre-travel checks.
While most British passport holders will not be impacted by these measures, dual nationals face significant complications. Immigration solicitor Skylar McKeith has highlighted that British citizens cannot apply for an ETA, meaning those who travel on their non-UK foreign passport risk being denied boarding or entry.
Essential Advice for Dual Citizens
McKeith, a legal expert with a substantial following on social media for demystifying immigration laws, has provided clear guidance to avoid travel disruptions. "The solution is simple," she advised. "Travel on your British passport, or a foreign passport with a certificate of entitlement."
A Certificate of Entitlement (CoE) is an official endorsement, typically a vignette in a foreign passport, that confirms a person's right of abode in the UK. It grants unrestricted living and working rights and can be applied for through the government's website at a cost of £589. Those eligible include individuals under the EU Settlement scheme or Leave to Remain arrangements, whose foreign passports already contain evidence of approved UK residency.
Navigating Multiple Passports
For dual nationals juggling multiple passports, it is generally recommended to carry all documents while travelling to maximise visa-free entry options. However, when entering or returning to the UK, using a British passport or a foreign passport with a CoE is crucial. Failure to do so could result in being barred from re-entry, as carriers will enforce strict checks under the new ETA rules.
Since its introduction in October 2023, over 13.3 million travellers have successfully applied for an ETA, benefiting from quicker and smoother journeys. The system has become integral for passengers, including those on connecting flights passing through UK passport control. As the 2026 enforcement date approaches, dual citizens are urged to verify their travel documents to ensure uninterrupted access to the UK.
