British Citizenship Through an Unmarried British Father

Understanding Form UKF

Why does Form UKF exist?

Before 1 July 2006, an unmarried British father was not normally recognised as a parent for the purpose of passing British nationality to his child.

As a result, a person born outside the UK to a British father might not have acquired British citizenship if their parents were unmarried, even though they would have become British automatically had their parents been married.

The British Nationality Act 1981 now contains remedial provisions designed to address this historical distinction.

Broadly, Form UKF provides a route to registration where a person:

• would have become a British citizen automatically had their mother been married to their natural father; and

  
  

• has never previously been a British citizen.

  
  

The purpose of the provisions is therefore to put applicants, as far as possible, in the nationality position they would have been in had their parents' marital status not prevented them from acquiring British citizenship.

Who may qualify?

A common scenario involves a person who:

• was born outside the UK before 1 July 2006;

• had a British biological father at the time of their birth;

• whose father was not married to their mother; and

• would have acquired British citizenship automatically through their father if their parents had been married.

  
  

However, simply establishing that a biological father was British is not always enough. It is also necessary to establish that the father could have transmitted British citizenship to the applicant.

For someone born outside the UK, this will commonly be the case where the father was himself born in the UK, or had been naturalised or registered in the UK before the applicant was born.

The precise position can depend on the applicant's date and place of birth, the father's nationality history and, in some cases, other historical nationality rules.

Why is 1 July 2006 important?

The law changed on 1 July 2006.

Before that date, British nationality law generally did not allow an unmarried British father to transmit citizenship in the same way as a married British father.

From 1 July 2006, the definition of a father for nationality purposes was widened so that, where the necessary evidence of paternity is available, an unmarried father can generally be recognised for nationality purposes.

Form UKF is therefore particularly relevant to people who missed out on British citizenship because of the earlier rules.

It is important to note, however, that Form UKF is no longer limited exclusively to people born before 1 July 2006. There are also certain circumstances involving people born on or after that date where the route may be relevant, including some cases where the applicant's mother was married to someone other than the natural father.

Proving that the father was British

An applicant must provide evidence showing that their father held the relevant British nationality status and was capable of passing that status to them.

Depending on the circumstances, relevant documents may include:

• the father's full UK birth certificate;

• a British passport held by the father;

• a certificate of naturalisation or registration; or

• other evidence demonstrating the father's British citizenship or relevant status before the applicant was born.

  
  

For example, where the applicant was born overseas and the biological father was born in the UK, the father's full UK birth certificate can be particularly important in establishing that he was a British citizen otherwise than by descent and was therefore normally capable of transmitting British citizenship to a child born abroad.

What if paternity is difficult to prove?

Paternity can sometimes be the most complex part of a Form UKF application.

The Home Office guidance provides that a father named on a birth certificate issued within 12 months of the applicant's birth can, subject to the applicable requirements, be accepted as evidence of paternity.

However, the absence of such a birth certificate does not necessarily prevent a successful application.

Where this evidence is unavailable, other evidence may be used to establish the biological relationship. This can include:

• DNA evidence;

• a court order establishing paternity;

• birth certificates; and

• other evidence sufficient to establish the relationship.

  
  

The evidence should be assessed as a whole.

Can DNA evidence be used if the British father has died?

The death of the applicant's father can make proving paternity more complicated, particularly where there is no contemporaneous birth certificate naming him.

However, this does not necessarily make it impossible to establish the relationship.

For example, there may be circumstances where DNA evidence involving another close paternal relative can form part of the evidence. An applicant might be able to establish a chain of evidence showing:

1. the identity and British citizenship of the alleged father;

2. the biological relationship between the father and another close relative;

3. a DNA relationship between that relative and the applicant; and

4. supporting documentary evidence consistently identifying the British citizen as the applicant's father.

   
   

This type of application may require several pieces of evidence to be considered cumulatively rather than relying on one document in isolation.

DNA evidence is not mandatory in every case. The Home Office cannot require an applicant to provide DNA evidence, and an applicant's decision not to provide it should not itself result in an adverse inference. Where DNA evidence is voluntarily relied upon, however, it can be particularly useful in cases where conventional documentary evidence is limited.