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Advisory

New UK Entry Requirements for Dual Nationals

Changes to UK border entry rules came into effect on 25 February 2026 and may affect British citizens who hold dual nationality. Under the new rules, British citizens travelling to the UK will generally no longer be able to enter the UK using only a non-UK passport

Below is a summary of the key points.

New documentation requirements

British citizens who also hold another nationality must now travel to the UK using one of the following:

  • A valid British passport  
  • A valid Irish passport (for British-Irish dual nationals)  
  • A Certificate of Entitlement to the Right of Abode  

The Certificate of Entitlement may be attached to a passport or issued in a digital format.

Travellers who do not hold one of the above documents may be refused boarding by airlines or denied entry to the UK.  

Link to the ETA rollout

These changes are linked to the ongoing rollout of the Electronic Travel Authorisation (ETA) system for visa-free visitors.

British citizens and Irish citizens cannot apply for an ETA. As a result, British dual nationals must ensure they travel using appropriate British documentation rather than relying on a foreign passport.

Transitional considerations

A transitional period has been mentioned. In some cases, airlines may allow travel where a person holds:

  • a valid foreign passport, and  
  • an expired British passport issued after 1989.  

However, this is not guaranteed, and travellers may still face additional checks or be refused boarding.

There have also been reports of dual nationals being refused entry to the UK or having ETA applications rejected where they are already considered British citizens.

EU nationals with UK immigration status

Some limited concessions have been introduced for EU dual nationals who hold UK settled or pre-settled status, allowing travel using an EU passport in certain circumstances.

However, these concessions do not apply to all dual nationals, and travellers should check their individual circumstances before travelling.

Practical considerations

Individuals who may already qualify as British citizens - for example those born overseas to British parent(s) - should confirm their nationality status before attempting to travel or applying for an ETA.

Travellers should also note that airlines are responsible for checking travel documentation prior to boarding and may refuse carriage if the required documentation is not presented.

As UK border policies and ETA implementation continue to develop, travellers should ensure they check the latest government guidance before travelling.

This update is intended as a general guide and does not replace tailored legal advice. If you have questions regarding these changes or their potential impact, please do not hesitate to contact us.