History of the franchise in Ireland

The basic law of the electoral franchise in the Republic of Ireland is Article 16 of the Constitution of Ireland, which states who can vote for Dáil Éireann, the lower house of the Oireachtas or parliament. Irish citizens who are Dáil electors have the right to vote in all other elections, though not conversely.

Constitution

The relevant parts of the Constitution state:

Article	Section	Subsection	Text
12	2	1°	The President shall be elected by direct vote of the people.
		2°	Every citizen who has the right to vote at an election for members of Dáil Éireann shall have the right to vote at an election for President.
		3°	The voting shall be by secret ballot and on the system of proportional representation by means of the single transferable vote.
16	1	2°	i	All citizens, and
			ii	such other persons in the State as may be determined by law,
			without distinction of sex who have reached the age of eighteen years who are not disqualified by law and comply with the provisions of the law relating to the election of members of Dáil Éireann, shall have the right to vote at an election for members of Dáil Éireann.
		3°	No law shall be enacted placing any citizen under disability or incapacity for membership of Dáil Éireann on the ground of sex or disqualifying any citizen or other person from voting at an election for members of Dáil Éireann on that ground.
		4°	No voter may exercise more than one vote at an election for Dáil Éireann, and the voting shall be by secret ballot.
28A	4		Every citizen who has the right to vote at an election for members of Dáil Éireann and such other persons as may be determined by law shall have the right to vote at an election for members of such of the local authorities referred to in section 2 of this Article as shall be determined by law.
47	3		Every citizen who has the right to vote at an election for members of Dáil Éireann shall have the right to vote at a Referendum.

Before independence

In the pre-1801 Irish House of Commons, the forty-shilling freehold was used in county constituencies, while borough constituencies were mostly rotten boroughs with closed electorates. Roman Catholics were explicitly disenfranchised from the Disenfranchising Act of 1727 to 1793, although earlier penal laws including in 1716 had effectively prevented Catholics from voting.

From the Act of Union 1800 to the 1922 creation of the Irish Free State, Irish electoral law was largely the same as contemporary British law. The Roman Catholic Relief Act 1829, which allowed Catholics to stand for Parliament, also increased the freeholder qualification from forty shillings (two pounds) to ten pounds. This was a quid-pro-quo to secure support from Protestants afraid of being overwhelmed by votes of less well-off Catholics.

From 1836, members of the Royal Irish Constabulary (RIC) and Dublin Metropolitan Police (DMP) were not allowed to vote. This was to preserve the impression of the forces' political impartiality. While police in Great Britain were enfranchised in 1887 at Westminster, this did not extend to Ireland.

Since independence

See also: Elections in the Republic of Ireland

The 1922 Constitution of the Irish Free State reduced the voting age for women in elections for Dáil Éireann (the lower house) from 30 to 21, the same as for men. This was retained by the 1937 Constitution of Ireland. The Seanad (upper house) voting age was 30 for both sexes from its establishment in 1922 until 1928, when direct election was abolished. The only direct election was in 1925.

University constituencies, where graduates vote for members, existed in the lower house until 1937, and have been in the Seanad since its recreation in 1938. Dublin University was enfranchised in the pre-Union Commons in 1613, and the National University of Ireland at Westminster in 1918. In 1979, the Seventh Amendment of the Constitution allowed for the franchise to be extended to graduates of other Irish third-level institutions, but this has not been invoked. One of the arguments made in support of the rejected 2013 proposal to abolish the Seanad was the elitism of giving graduates an extra legislative vote; some proposals for Seanad reform would give non-graduates a vote for the Vocational Panel senators instead.

In 1935, the voting age for women was reduced from 30 to 21 for local elections In 1960, members of the Garda Síochána were allowed to vote; the 1923 electoral act had carried forward the previous ban on RIC and DMP members voting for parliament, though they could vote in local elections. In 1972, the Fourth Amendment of the Constitution reduced the voting age to 18.

In 1985, UK citizens gained the right to vote in Dáil elections, reciprocating Irish citizens' right to vote in UK elections under the Ireland Act 1949. The Ninth Amendment of the Constitution was passed in 1984 to allow for this. The Electoral Amendment Bill 1983 had purported to allow UK citizens to vote, but was ruled to be unconstitutional by the Supreme Court. The 1985 change, restated in 1992, allows the Dáil franchise to be similarly extended on a reciprocal basis to citizens of other countries. As of 2014 this has not been applied.

Since 2006, prisoners have been able to vote. They were never explicitly prohibited from voting, but the lack of postal voting and inability to travel to an external polling station effectively disenfranchised them.