Dual British nationals will face new entry requirements when travelling to the United Kingdom from 25 February, as the government tightens border controls under its expanding Electronic Travel Authorisation (ETA) system.
The updated rules, confirmed by the UK Home Office, mean that British citizens who also hold another nationality must now present proof of their British status when entering the UK. From this week, they will be required to show either a valid British passport or a certificate of entitlement confirming their right to live and work in the country. A valid Irish passport will also be accepted.
What is changing at the UK border?
The new requirement forms part of the broader rollout of the UK’s Electronic Travel Authorisation system, designed to digitise and streamline border management. The ETA functions as a two-year digital permission allowing eligible visitors to travel to the UK for stays of up to six months.
Nationals from visa-exempt countries must apply online or through a mobile app before travelling. The ETA currently costs £16 and is intended to improve security screening before passengers board transport to the UK.
However, dual nationals who hold British or Irish citizenship are not eligible to apply for an ETA. Instead, they must now prove their citizenship through traditional documentation. Without a valid British passport, Irish passport, or certificate of entitlement, they may be denied boarding by airlines or other carriers.
This shift has caught some dual nationals off guard, particularly those who routinely travelled to the UK using their non-British passport. Many say they were unaware of the change until shortly before implementation, leaving limited time to renew documentation.
The financial aspect has also sparked criticism. A standard British passport currently costs around £94.50, while a certificate of entitlement — which confirms the right of abode in the UK — costs significantly more, at £589. For families with multiple dual-national members, the total expense can be substantial.
Despite the backlash, the UK government maintains that the requirement has been clearly communicated since October 2024 and describes it as a necessary evolution of the country’s digital immigration system.
The ETA system and its wider implications
The Electronic Travel Authorisation represents a broader shift in how the UK manages inbound travel. Similar to systems used by other countries, the ETA enables authorities to conduct background checks before travellers arrive. It applies primarily to visitors who do not require visas but previously could travel without advance clearance.
Under the updated framework, dual British citizens are effectively being required to use British documentation when entering their own country. The government argues that this aligns with longstanding legal expectations that British citizens should enter the UK as British nationals.
However, recognising the practical disruption this sudden enforcement may cause, authorities have indicated that some flexibility may temporarily exist. According to official statements, certain carriers — including airlines and ferry operators — may allow dual nationals to travel using alternative documentation.
This workaround may include presenting an expired UK passport issued in 1989 or later, alongside a valid passport from a country eligible for an ETA. Importantly, this concession is not guaranteed. The decision to accept such documentation rests entirely with individual carriers, not with UK border authorities directly.
Travellers using this temporary route could still face additional questioning or checks upon arrival in the UK. Officials have therefore strongly advised affected individuals to obtain either a valid British passport or a certificate of entitlement to avoid complications.
The policy highlights the increasingly digitised and documentation-driven nature of international travel. As countries adopt pre-authorisation systems and tighten identity verification procedures, dual nationals may need to pay closer attention to citizenship-based entry requirements.
For many, the immediate concern is practical: ensuring they have the correct documents before booking travel. Airlines are expected to apply the new rules strictly, as carriers can face penalties for transporting passengers who lack proper documentation.
The Home Office continues to emphasise that the objective of the ETA system is to create a faster and more secure immigration process overall. Yet for dual British nationals accustomed to flexible entry arrangements, the change marks a notable shift in how citizenship must be demonstrated at the border.
