|British citizenship and|
|Law relating to former territories|
Irish citizens in the United Kingdom enjoy a special status when residing there, due to close proximity of the UK and Ireland and historical ties between the two countries. They are considered to have automatic and permanent permission to live in the UK and are eligible to vote, stand for public office, and serve in non-reserved government positions.
Since the Norman invasion of Ireland in the late 12th century, England has been politically and militarily involved on the island. English control was largely restricted to the area around Dublin known as The Pale until 1603, when the entire island was assimilated into the Kingdom of Ireland at the completion of the Tudor conquest. After passage of the Acts of Union 1800, Ireland was merged with the Kingdom of Great Britain to form the United Kingdom of Great Britain and Ireland. Resistance to the Union and desire for local self-governance led to the Irish War of Independence. Following the war, the island of Ireland was partitioned into two parts. Southern Ireland became the Irish Free State in 1922, while Northern Ireland continues to remain part of the United Kingdom.
See also: Anglo-Irish Treaty
Under the terms of the Anglo-Irish Treaty, the Irish Free State remained part of the British Empire as a self-governing Dominion and the King continued to be the Irish head of state. Accordingly, Irish citizens remained British subjects under the prevailing theory of British nationality law that all subjects within the Empire, including Dominions, held a common imperial status. Holding citizenship within the Dominions had no effect on possession of the wider British nationality. Because the Irish government disputed that its citizens were British subjects and did not describe them as such on Irish passports, the Foreign Office routinely refused consular protection to Irish citizens during this time unless they possessed other passports describing them as British subjects.
Dispute over whether Irish citizens were British subjects continued until Ireland formally declared itself a republic in 1948. Since 1949, Irish citizens have no longer been automatically considered as British subjects. Individuals born before 1949 may make formal claims to retain British subject status, though this nationality cannot be transferred by descent. The United Kingdom recognised Ireland's departure from the Commonwealth of Nations and the end of its Dominion status with the Ireland Act 1949. Irish citizens continue to enjoy favoured status in the United Kingdom similar to Commonwealth citizens and are not considered aliens.
The Ireland Act also reestablished British citizenship for Irish citizens who were domiciled outside of the Republic when the British Nationality Act 1948 came into effect. Because that Act contained provisions that dealt with "a person who was a British subject and citizen of Eire on 31 December 1948", the conditions laid out in British law determining who became Citizens of the United Kingdom and Colonies (CUKCs) were dependent on who were Irish citizens under Irish nationality law. When the Irish Free State was established on 6 December 1922, it consisted of the whole of Ireland. Northern Ireland opted out of the Free State on the next day. However, all individuals domiciled on the entire island on 6 December are considered Irish citizens. Consequently, when the BNA 1948 became effective, Irish citizens living in Northern Ireland automatically lost British citizenship, although this was not intended by Parliament. The Ireland Act restored British citizenship to any individual domiciled in Northern Ireland on 6 December 1949 who otherwise would have had the status if not for Irish law.
The Ireland Act additionally conferred CUKC status on Irish-born persons who did not receive Irish citizenship at any point prior to 18 April 1949. Individuals who left Ireland before 1922 and who were not resident in 1935 may be eligible for registration as Irish citizens while also being able to claim British citizenship. A claim to British citizenship may be established by: birth to the first generation emigrant, consular registration of later generation births by married British citizen fathers within one year of birth prior to 1983, registration of birth to unwed British citizen fathers, or registration of birth to mothers who were considered British citizens between 1949 and 1983. In some cases, British citizenship may be available to these descendants in the Irish diaspora even when Irish citizenship registration is not, as in instances of failure of past generations to timely register in a local Irish consulate's Foreign Births Register before the Irish Nationality and Citizenship Act 1986 and before births of later generations.
Prior to 1983, anyone born in the United Kingdom other than children of diplomats were automatically British citizens at birth. After the British Nationality Act 1981 took effect, children are only citizens at birth if at least one parent is also a British citizen or considered "settled" in the UK. Irish citizens resident in the UK are automatically considered "settled", and any children born to them in the United Kingdom continue to be British citizens at birth.
Irish citizens are exempted from obtaining a visa or entry certificate when entering the United Kingdom and do not require approval to live or work there. They are not considered foreign nationals and are entitled to certain rights similar to those of Commonwealth citizens. These include exemption from registration with local police, voting eligibility in UK and EU elections, and the ability to enlist in the British Armed Forces. They are also eligible to serve in non-reserved Civil Service posts, be granted British honours, receive peerages, and sit in the House of Lords. Additionally, Irish citizens may stand for election to the House of Commons and local government.
Irish citizens born before 1949 may make formal claims at any time to retain status as British subjects based on: Crown service in the UK, existing passports or certificates of entitlement describing holders as British subjects, or proof of other associations with the UK or any former British territory. British subject status claimed in connection with Ireland additionally grants holders right of abode in the UK, eligibility to serve in reserved government positions, and the right to apply for British passports. While Irish citizens have no preferred path to citizenship, British subjects may become British citizens by registration, rather than naturalisation. However, both registration and naturalisation have the same residence requirement of five years before individuals may qualify to apply through either process.