Expert Advice

Brits with dual-citizenships have been told they could be refused entry back into the UK from February 25, 2026, under new ETA rules if they travel abroad without the correct documents

British passport holders could find themselves barred from re-entering the UK from February 25, 2026, under stringent new travel regulations that require additional documentation for entry into the country.

From later this month, the UK will get stricter with its Electronic Travel Authorisation (ETA) scheme for all visitors, including those from the EU, USA, and other visa-exempt countries, meaning they’ll need digital clearance before arrival. The system will apply across all modes of transport – aeroplanes, ferries, and Eurostar services – with strict carrier inspections in place. Whilst the average British citizen won’t be impacted by these measures, dual nationals holding multiple passports could face significant complications.

While residents under the EU Settlement scheme or Leave to Remain arrangements are exempt, as their foreign passports contain evidence of their approved UK residency, those with dual citizenship and multiple passports have been cautioned they may struggle to return back to the UK if they overlook one crucial detail.

With the Government recently announcing tougher enforcement of Electronic Travel Authorisation (ETA) and eVisa verification at border control, an immigration solicitor has issued an urgent reminder to British dual nationals to carry out one essential check before jetting off on holiday. A UK immigration lawyer and legal expert has issued an urgent warning to Brits on social media, particularly those holding dual citizenship who could face serious travel disruptions.

Skylar McKeith, who has amassed thousands of followers by demystifying British immigration laws and providing guidance on various scenarios including travel, has raised the alarm about upcoming changes that could see some British citizens refused entry to their own country.

“British citizens could be refused entry to the UK,” she cautioned in her video, before detailing how the new ETA regulations could impact British nationals.

“From the 25th February, the UK will fully enforce its ETA system,” Skylar revealed. “British citizens cannot apply for an ETA, so if you are a dual citizen and you travel on your non-UK foreign passport, you may be refused boarding.”

From 25 February 2026, visitors from 85 countries, including the United States, Canada, and France, who previously didn’t require a visa will be unable to legally enter the UK without obtaining an ETA.

The enforcement of these new rules means that everyone wishing to enter the UK must secure digital permission through either an ETA or an eVisa, with carriers conducting checks before passengers travel.

Whilst this may seem complicated, it simply means that British citizens holding multiple different citizenships need to carefully consider which passport they use when travelling. Skylar went on to to share her essential advice on navigating this situation.

“The solution is simple,” Skylar advised. “Travel on your British passport, or a foreign passport with a certificate of entitlement.”

A Certificate of Entitlement (CoE) is an official endorsement, usually a vignette in a foreign passport, that confirms a person’s right of abode in the UK, granting them unrestricted living and working rights. Those eligible can apply for these documents via the government’s website at a cost of £589.

For those juggling multiple passports, it’s generally suggested to carry all of them while travelling as it provides more options for visa-free entry. It’s also recommended to use your home country’s passport when entering or returning to that country.

Since the introduction of ETA in October 2023, over 13.3 million travellers have successfully applied, enjoying quicker and smoother journeys. ETA has become an essential aspect of travel, including for passengers taking connecting flights and passing through UK passport control.