Residence
5 yrs
Via marriage
~3 yrs
By descent
Grandparent
Dual citizenship
Allowed
Naturalisation by residence
5 years (1,826 days) of reckonable residence in the last 9 years, including 1 year of continuous residence immediately before applying.
Through marriage
Spouses of Irish citizens can apply after 3 years of marriage and 3 years of residence on the island of Ireland.
By descent (ancestry)
Anyone with a parent born in Ireland is automatically Irish. With a grandparent born in Ireland, you can register on the Foreign Births Register.
Language & tests
No formal language or citizenship test.
Dual citizenship
Ireland allows dual citizenship.
Frequently asked questions
How many years does it take to get Ireland citizenship?
The standard requirement is 5 years. 5 years (1,826 days) of reckonable residence in the last 9 years, including 1 year of continuous residence immediately before applying.
Does Ireland allow dual citizenship?
Allowed. Ireland allows dual citizenship.
Can I get Ireland citizenship through marriage?
Spouses of Irish citizens can apply after 3 years of marriage and 3 years of residence on the island of Ireland.
Can I get Ireland citizenship through my parents or grandparents?
Anyone with a parent born in Ireland is automatically Irish. With a grandparent born in Ireland, you can register on the Foreign Births Register.
This guide is general information, not legal advice. Requirements change and individual circumstances matter; confirm with Irish Immigration Service or a qualified immigration lawyer before applying.