Nationality Checking Service (NCS)

Children born outside the UK who are British by descent

Children with a parent who is British by descent - 3 (2) application

Their grandparent was born in the UK, but their parent was born abroad.

  • Completed application form with section 3 filled in
  • Child’s passport
  • Child’s full birth certificate showing parent’s names
  • British parent’s passport
  • British parent’s birth certificate showing both parent’s names
  • British grandparent’s full UK birth certificate
  • British grandparent’s marriage certificate
  • Proof that the British parent lived in the UK for a continuous 3 year period at any time PRIOR to the child’s birth – P60s, payslips, employer’s letters, self-employment records, letters from school/ colleges 

Children who apply via this route will become British by descent and will not be able to pass their British Citizenship on. If it's possible, it's more beneficial for a child to do a 3 (5) application as they can pass their citizenship on to children born in the UK. UKM women can't allow their children to do it via this route.

Children whose parents are British by descent - their grandfather was born in the UK - but their parents were born abroad. 3 (5) Application

  • Completed application form with section 3 filled out
  • Child’s passport to cover the last three years
  • Child’s birth certificate
  • Proof the child has been in the UK for 3 years (passport, school letters, child benefit letters)
  • Child’s Indefinite Leave to Remain
  • Parent’s Marriage Certificate
  • British Parent’s British Passport
  • British Parent’s Birth Certificate
  • British Grandfather’s UK Birth Certificate
  • British Grandfather’s Marriage Certificate
  • Proof the British parent has been living in the UK for 3 years – work letters, P60s, wage slips, self-employment records, letters from schools/ colleges
  • Non-British parents’ passport to cover the last 3 years
  • Non-British parent’s Indefinite Leave to Remain
  • Proof the non-British parent has been in the UK for the last 3 years (if passport doesn’t cover it)
  • Travel dates for the last 3 years for child and both parents

The child and both parents must have been present in the UK at the start and end of the 3 year qualifying period. The child and both parents must not have been absent from the UK for more than 270 days in the last 3 years. There is no discretion on this.

UKM women can't allow their children to do it via this route.