The Foreign Births Register in Ireland is how people born outside the country claim Irish citizenship through ancestry. If one of your grandparents was born on the island of Ireland, or if one of your parents was already an Irish citizen when you were born even though that parent was born abroad, you can become an Irish citizen by having your birth entered in the register kept by the Department of Foreign Affairs. You apply online at fbr.dfa.ie, mail your original civil documents to Balbriggan, and pay €278 as an adult or €153 for a child under 18. Current processing runs about 12 months.
Who Qualifies
Irish citizenship law treats each generation differently, and the register only fits one specific spot in the family tree.
If one of your parents was born on the island of Ireland and was an Irish citizen when you were born, you are already an Irish citizen. The register does not apply to you. Apply directly for an Irish passport.1Citizens Information. Irish Citizenship Through Birth or Descent
The register is for the next generation out. You qualify if one of your grandparents was born on the island of Ireland, or if one of your parents was an Irish citizen at the time of your birth despite being born abroad themselves.2Department of Foreign Affairs. Born Abroad – Citizenship Under the Irish Nationality and Citizenship Act 1956, a person born abroad to a parent also born abroad only becomes a citizen once the foreign birth is registered.3Irish Statute Book. Irish Nationality and Citizenship Act, 1956 – Section 7
If your Irish ancestor is a great-grandparent rather than a grandparent, the register generally will not help. The chain of citizenship has to be unbroken: each generation must have been an Irish citizen before the next was born. Where that chain was never established, the remaining option is naturalization based on “Irish associations,” which involves residency, ministerial discretion, and a considerably longer timeline.4Revised Acts. Irish Nationality and Citizenship Act 1956 – Section 16
Why the Registration Date Matters for Your Children
Your Irish citizenship does not backdate to your birth. It begins on the day your name is entered in the register. That timing has real consequences if you plan to have children.
A child born to you before your registration date cannot claim citizenship through you, because you were not yet an Irish citizen at the moment of their birth. A child born after your registration date can. If you are planning a family and want Irish citizenship available to your children, register yourself first. The department recognizes this specific pressure and will consider urgent requests in the situations described below.
Documents You Need
The department has to see an unbroken paper trail from you back to your Irish-born ancestor. Every link needs an original civil document or a properly certified copy.
For yourself: a long-form birth certificate showing your parents’ names (short-form certificates are rejected), current photo ID such as a valid passport or national identity card, and, if your name has changed by marriage or deed poll, the document proving that change.
For the chain of descent: long-form birth certificates for the parent through whom you claim and for the Irish-born grandparent, marriage certificates for any marriage in the chain that changes a name or establishes a legal relationship, and death certificates for anyone in the chain who has died.5Department of Foreign Affairs. Registering a Foreign Birth
Documents should come from the General Register Office or its equivalent in the country where the event was recorded. Uncertified photocopies are not accepted. A solicitor, notary, commissioner of oaths, or the issuing authority itself can certify a copy as true.
Documents in a language other than English need a certified translation. The translator writes “Certified to be a true translation of the original seen by me,” signs and dates it, prints their name, and adds their address, occupation, and professional stamp or reference number.
How to Apply
The application has two parts: an online form, then a physical package sent by post.
The Online Form
Start at fbr.dfa.ie. The form asks for details that must match your civil records exactly: full dates of birth, marriage, and death for each person in the chain, and the specific place where each event was registered. You name your witness at this stage. Payment is taken online by credit or debit card before you can print the application, and fees are non-refundable once processing has begun.
Witness and Signing
Print the summary and declaration generated by the portal, then sign them in the presence of your chosen witness. The witness also signs the declaration and endorses the back of your passport-sized photographs. The list of accepted witnesses is wider than most applicants expect and includes police officers, doctors, lawyers, teachers, clergy, nurses, pharmacists, dentists, accountants, bank managers, veterinarians, and chartered engineers. The requirement is that the witness knows you personally and is currently practicing in their profession.
Mailing the Package
Put the signed declaration and all original civil documents into a single package and send it, using a trackable service, to the Foreign Births Registration Section, PO Box 13003, Balbriggan, Co. Dublin, Ireland. Do not include original photo identification. Once the package is received and processed, the department emails you an application number so you can follow your file.
Fees
Applicants aged 18 and over pay €270 for registration and certificate plus a non-refundable €8 postage and handling fee, for a total of €278. Applicants under 18 pay €145 plus the same €8 handling fee, totaling €153. Payment goes through the online portal before you print the application.
Processing Time and Urgent Requests
The Department of Foreign Affairs currently estimates around 12 months to process a completed application. Straightforward files with clean documentation sometimes move faster; complex chains, missing certificates, or follow-up requests for evidence can extend the timeline. Check the department’s website for the current estimate, as it shifts with application volumes.
Applications are normally handled in the order received. Two situations qualify for an urgent request: you are expecting a child who will not be entitled to Irish citizenship unless you are on the register before the birth, or you (or a child you are expecting) will be stateless without registration. To make an urgent request, call +353 1 568 3331 between 9:00 a.m. and 4:30 p.m., Monday to Friday, Irish time.6Citizens Information. The Foreign Births Register Outside those two categories, there is no general expedite route, so plan well ahead of any deadline.
What You Get After Registration
Once your name is entered in the register, the department issues a Foreign Birth Certificate. That certificate is your proof of Irish citizenship, and you need it before you can apply for an Irish passport. The two steps are sequential, not parallel: register first, receive the certificate, then apply for the passport.
Ireland permits dual citizenship. You do not have to give up your existing nationality to become an Irish citizen, and Irish law does not require you to renounce anything.7Immigration Service Delivery. Dual Citizenship Check the rules of your other country of citizenship as well, since a small number of countries do require renunciation of other nationalities.
As an Irish citizen you are also an EU citizen. Under the Free Movement Directive, you can live, work, and study in any EU member state. Stays of up to three months in another EU country need only a valid passport or ID card. Stays longer than three months require you to meet conditions tied to your situation, such as being employed, self-employed, or enrolled as a student. After five continuous years of legal residence in another EU country, you gain permanent residence rights there.8European Commission. Free Movement and Residence For applicants without another EU passport, this access is often the most valuable practical outcome of registration.