Irish citizenship through marriage: the spouse route
Checked 26 Oct 2026 against the official sources below
Short answer: If you're married to, or in a civil partnership with, an Irish citizen, you can apply after 3 years of marriage and 3 years of residence on the island of Ireland: one continuous year right before applying, plus 2 years in the 4 years before that. You must be living together.
The rules
Section 15A of the Irish Nationality and Citizenship Act lets the spouse or civil partner of an Irish citizen apply with a shorter residence. You need to have been married (or civil partners) for at least 3 years, with the marriage still in place and the two of you living together.
You also need 1 year of continuous residence on the island of Ireland right before you apply, plus 2 years in the 4 years before that. The 70-day absence rule for the continuous year applies here too.
The island of Ireland, not just the State
Unlike the 5-year route, this route counts residence anywhere on the island of Ireland. Time living in Northern Ireland counts, and moving between Northern Ireland and the Republic doesn't count as being abroad.
What you'll need
Along with the usual identity and residence proofs, you'll show your marriage or civil partnership certificate, your spouse's Irish citizenship, and evidence that you live together.
Working out your date
Your earliest date is the later of two dates: when you've been married 3 years, and when you meet the residence rule. Our calculator works out both when you choose "Married to an Irish citizen".
Track your own application
Log each step and see how you compare with other applicants. Free, and shared anonymously.
Questions
Does marrying an Irish citizen make me Irish automatically?
No. Marriage doesn't give citizenship by itself; it shortens the residence you need before you can apply for naturalisation.
Do I need a Stamp 4 to use the spouse route?
You need to have been living lawfully on the island of Ireland. Most spouses of Irish citizens in the State hold a Stamp 4; in Northern Ireland it's your UK immigration status or citizenship.
What if we married abroad?
A marriage recognised in Ireland counts. You'll need the certificate, translated and certified if it isn't in English or Irish.
Sources
- Irish Nationality and Citizenship Act 1956 (revised, as amended)
- Immigration Service Delivery: How to become an Irish citizen (guide)
NuaIrish is independent and doesn't give legal advice. Immigration Service Delivery decides on every application.