Children who are under the of 18 years (minors) can apply to the Home Office for registration as British citizens (MN1 Application) under the following sections of the British Nationality Act 1981. Once a child reaches age 18 they will have to apply to naturalise using form AN.

  • Section 1 (3) birth in the UK to parents who are now settled in the UK or have become British citizens;
  • Section 1 (3A) birth in the UK to parents who have joined the armed forces;
  • Section 3 (1) child whose parents are applying for British citizenship;
  • Section 3 (2) birth abroad to parents who are British by descent and have lived in the UK or a British overseas territory;
  • Section 3 (5) birth abroad to parents who are British by descent but are now living in the UK or a British overseas territory;
  • Section 3 (1) children adopted abroad by British citizen parents;
  • Section 3 (1) children whose parents had renounced and subsequently resumed British citizenship;
  • Section 3 (1) any other case not listed below where it is considered to be in the child’s best interests to be granted British citizenship;
  • Section 4D birth abroad to parents serving in the armed forces.