Birth and descent
Birth or descent check
Answer a few questions about where you were born and your Irish parents, grandparents or great-grandparents. You may already be a citizen, with no naturalisation needed.
When were you born?
Pick when you were born.
Every result on this page is an estimate, not an official decision. Only the relevant government body can decide your entitlement or application. Your answers stay in your browser: nothing is stored or sent to a server.
Official sources
Rules last verified 18 August 2026.
Naturalisation residency calculator guidance (ISD)irishimmigration.ie/naturalisation-residency-calculator/How to become an Irish citizen guide (ISD)irishimmigration.ie/how-to-become-an-irish-citizen-guide/Immigration permission stamps (ISD)irishimmigration.ie/registering-your-immigration-permission/information-on-registering/immigration-permission-stamps/Becoming an Irish citizen through naturalisation (Citizens Information)citizensinformation.ie/en/moving-country/irish-citizenship/becoming-an-irish-citizen-through-naturalisation/Change to the refugee route, 8 December 2025 (ISD)irishimmigration.ie/changes-to-citizenship-for-people-granted-international-protection/
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