Children born outside the UK to a British citizen may qualify for British citizenship by descent if they have a parent or grandparent who is a UK national. However, unlike children born in the UK to British parents—who automatically acquire British citizenship—those born abroad generally must go through a registration process to obtain this status. With British citizenship, a child can live in the UK permanently, work, study, receive NHS healthcare, access certain benefits, and apply for a British passport.

Once a child born outside the UK is registered as a British citizen, a British passport can be issued on their behalf. This allows them to travel freely to and from the UK without the need for a visa, exempting them from UK immigration control.

British Citizenship by Descent and Its Limitations

• British citizenship by descent can only be passed down one generation. This means that a child born abroad to a British citizen is eligible for citizenship by descent, but they will not typically be able to pass this citizenship on to their own children if born outside the UK.
• Individuals born in the UK to British parents, by contrast, are citizens “otherwise than by descent” and can pass on their citizenship to children born abroad without additional requirements.

Before applying, check if your child might already hold British citizenship, as they could be eligible automatically based on specific circumstances. This can be verified through the UK Home Office’sBritish citizenship checking services.

Requirements for Registering a Child Born Abroad as a British Citizen
For a child born outside the UK to be registered as a British citizen, they typically must meet the following criteria:

• Parentage:
  The child must have at least one parent who held British citizenship at the time of the child’s birth.
• Residence:
  Either the child or their parents must have lived in the UK for at least three years immediately before the citizenship application. If parents resided in the UK before the child’s birth, they should have lived in the country for at least three years prior.
• Character Requirements (for children aged 10 and over):
  Applicants over the age of 10 must satisfy a good character requirement.
• Best Interests of the Child:
  The decision to grant British citizenship must be in the child’s best interests.

Required documents
There are several items of evidence that are needed applying to register for British citizenship for a child born abroad, including:

• the child’s birth certificate showing parents’ details
• evidence of the parent’s British citizenship by descent at the time of the child’s birth
• if the claim is through the father and the child was born before 1st July 2006, the parent’s marriage certificate
• passports or alternative evidence of residence for the children and the parents to confirm residence in the UK for three years immediately before the date of application, and they had not been absent from the UK for more than 270 days in that three year period
• if one of the parents has died, the death certificate for the deceased parent
• if the parent’s marriage or civil partnership has ended in divorce, either:
  
  1. the parents’ divorce certificate
  2. a formal letter confirming nullity
  3. evidence of dissolution of civil partnership
  4. a formal letter confirming judicial separation

The Home Office will explain which documents to provide with your child’s application. Due to the importance of keeping children safe Home Office case officers are particularly careful when it comes to checking documents for registration applications.

If you were adopted
You’re automatically a British citizen if you were adopted by a British citizen in a UK court.
If you were adopted overseas, you’re a British citizen if you were adopted by a British citizen and your adoption order is certified as having been made in accordance with the Hague Convention.