The Right to work
British citizens and those with settled status have an unconditional right to work in the UK.
British Citizens
A British Citizen has an unconditional right to work in the UK. There are four ways of getting British citizenship:
1 By birth or adoption [British Nationality Act 1981 (BNA 1981) section 1]
2 By descent [BNA 1981 section 2]
3 By registration [BNA 1981 sections 3-5]
4 By naturalisation [BNA 1981 section 6 and Schedule 1]