A guide to check entitlement to Irish citizenship through birth or descent can be found here.
The application forms to apply for a certificate of naturalisation can be found here.
The requirements to become an Irish citizen can be found here.
The identity document’s required to support your application can be found here.
To calculate reckonable residency use our Naturalisation Residency Calculator.
Information in relation to permission to remain stamps can be found here.
A guide to the document’s required as proof of residence can be found here.
Information on retaining Irish citizenship obtained through naturalisation can be found here.
Information for declaration of residence on Form C can be found here.
Information in relation to the return of your passport can be found here.
Information on processing time of applications can be found here.
If you have lost your citizenship certificate you should download this questionnaire form, fill in the details and return it to the address on the form.
Information on how to certify copies of original documents is found here.
Information on translation of original documents is found here.
Information about documents exempt from legalisation and the apostille formality within the EU can be found here.