Question to the Home Office:

To ask His Majesty's Government whether British citizens are legally required to use a British passport on entering and exiting the UK; whether there has been a change in legal requirements for dual citizens since the introduction of the Electronic Travel Authorisation; and in what circumstances dual citizens may use a certificate of entitlement in a foreign passport to enter the UK.

The Government has published guidance on Electronic Travel Authorisations (ETAs) for dual British citizens, accessible via Gov.UK. Our communication and support offer is updated in line with feedback from users.

There is no single specific legal requirement that a British Citizen must travel on a British passport. However, primary legislation is clear that evidence of right of abode in the UK can only be demonstrated at the UK border through the production of either a British passport or other passport endorsed with a certificate of entitlement to the right of above (CoE). This is the means by which British citizens demonstrate their right to enter the UK.

The introduction of ETAs makes no change to legal requirements for dual British citizens.