Irish Citizenship by Descent
Irish-born grandparent? You may qualify for an Irish, and EU, passport. Eligibility, documents, costs, timing, and the rules that catch Canadian families out.
Short answer: If a parent or grandparent was born on the island of Ireland, you may be able to become an Irish citizen. Irish citizens are EU citizens, so they can live and work anywhere in the EU. If your parent was born in Ireland, you are probably Irish already. If it was your grandparent, you apply through the Foreign Births Register. The fee is €278 for adults, and processing takes about 12 months.
Quick Eligibility Check
| Your Irish connection | Your status | What to do |
|---|---|---|
| A parent born on the island of Ireland, who was an Irish citizen when you were born | Already an Irish citizen | Apply for an Irish passport |
| A parent who was an Irish citizen when you were born, but was born outside Ireland | Eligible | Register on the Foreign Births Register |
| A grandparent born on the island of Ireland | Eligible | Register on the Foreign Births Register |
| A great-grandparent born in Ireland | Only in limited cases | Check whether your parent was registered before you were born |
| More distant ancestors | Not eligible through descent | See other routes below |
The island of Ireland includes Northern Ireland. A grandparent born in Belfast counts the same as one born in Dublin.
Your parents do not need Irish passports. If your grandparent was born on the island of Ireland, you can apply even if neither of your parents ever claimed Irish citizenship.
The Timing Rule That Catches Families Out
When you register on the Foreign Births Register, you become an Irish citizen from the date of registration, not from your birth. That has two big consequences:
- Your children. Children born after you are registered can apply too. Children born before you are registered cannot, because you were not an Irish citizen when they were born.
- Great-grandparents. You can only claim through an Irish-born great-grandparent if your parent was already on the register when you were born.
If you are planning a family, register early. The Irish government warns that if an expectant parent is not on the register when the child is born, the child will not be entitled to Irish citizenship. Expectant parents can contact the Foreign Birth Registration team about their application.
Documents You Need (Grandparent Route)
Most Canadians apply through a grandparent. Irish authorities require original documents unless stated otherwise, and they return them at the end.
For you:
- The completed, signed, and witnessed application form
- Your original civil birth certificate showing your parents’ details (the long form)
- Your original marriage certificate or other name change document, if your name has changed
- A photocopy of your photo ID (such as a passport or driver’s licence), certified by your witness
- Two separate original proofs of address
- Four colour passport photos, two of them signed by your witness
For your parent (the link between you and your grandparent):
- Their original civil birth certificate showing their parents’ details
- Their original marriage certificate or name change document, if applicable
- A certified photocopy of their photo ID, or their original death certificate
For your Irish-born grandparent:
- Their original Irish civil birth certificate showing their parents’ details
- Their original marriage certificate or name change document, if applicable
- A certified photocopy of their photo ID, or their original death certificate
Grandparent born before 1864? Irish civil birth registration began that year, so a baptismal certificate is accepted instead.
Applying with a brother or sister? You can share one set of family documents, as long as you live in the same country. Send both forms in one envelope with a note explaining this.
Choosing Your Witness
This is where many applications go wrong. Your witness must:
- know you personally,
- not be a relative, and
- currently practise one of the listed professions.
Professions on the list include police officer, teacher or school principal, lecturer, member of the clergy, doctor, nurse, pharmacist, dentist, lawyer, notary, bank or credit union manager, accountant, elected representative, veterinarian, and chartered engineer.
The same person must witness your form, sign two of your photos, stamp the form with their official stamp (or include their business card), and certify the copy of your photo ID.
How to Apply, Step by Step
- Gather every document first. Incomplete applications are returned without being processed.
- Complete the online form on the Foreign Births Registration website. There is no paper form.
- Pay online when you submit.
- Print the form and have it signed and witnessed.
- Post everything to the address on your printed form. Use tracked, recorded mail, since the office does not confirm when it receives applications, and there is no public office to visit.
- Wait. Applications are processed in strict date order.
Costs and Timing
- Adults (18 and over): €278, which includes €8 for postage and handling
- Under 18: €153, which includes €8 for postage and handling
- Processing time: about 12 months, according to the Irish government
You will also have costs on the Canadian side, such as ordering birth and marriage certificates from your province and paying for certified copies. Irish birth certificates come from Ireland’s General Register Office, or from GRONI for births in Northern Ireland.
After You Are Registered
- You receive a Foreign Birth Registration certificate. You need it before you can apply for an Irish passport, so you cannot apply for both at once.
- Your name on the certificate will match your birth certificate exactly. You can still get a passport in a changed name by providing the right documents.
- Apply for your Irish passport through the Irish passport service.
- Your future children can then be registered too.
What an Irish Passport Gives You
- The right to live and work anywhere in the EU, including France, Spain, Portugal, Germany, and Italy, with no visa needed.
- No 90-day limit. EU citizens are not subject to the Schengen short-stay rule. See our Schengen 90/180 guide.
- The right to live and work in the United Kingdom through the Common Travel Area between Ireland and the UK.
- You keep your Canadian citizenship. Canada and Ireland both allow dual citizenship.
Becoming Irish does not, on its own, change your Canadian taxes. Moving abroad can. See leaving Canada: tax residency explained.
Common Mistakes
- Sending photocopies where originals are required
- Choosing a witness who is a relative or who does not personally know you
- Missing name-change links, such as marriage certificates that connect a birth name to a current name
- Short-form birth certificates that do not show parents’ details
- Waiting to register until after starting a family
- Applying for a passport first. You must be on the register before you can apply.
Not Eligible? Other Routes
- Other countries. Other EU countries have their own citizenship-by-descent rules. See our citizenship by descent guide.
- Living in Ireland without citizenship. Young Canadians can look at Ireland’s Working Holiday Authorisation. See working holidays in Europe.
- Moving elsewhere in Europe. See France, Portugal, and Spain, or take the pathway quiz.
Do the Canada-EU Talks Change Any of This?
No. Irish citizenship is decided by Irish law, and the proposal to make Canada an EU “associate member” does not affect it. An Irish passport is still the most reliable way for an eligible Canadian to get full EU rights today. See what associate membership would mean for Canadians.
Official Sources
- Government of Ireland: Registering a foreign birth
- Foreign Births Registration online application
- Government of Ireland: How to apply for a passport
- Citizens Information: Irish citizenship through birth or descent
- Irish Immigration Service: Citizenship eligibility guide (PDF)
- Government of Ireland: Working Holiday Authorisation
This guide is informational only and is not legal advice. Irish citizenship rules, fees, and processing times can change, and some family situations, such as adoption, have extra requirements. Always check the official Irish government pages before you apply, and consult a qualified lawyer if your case is not straightforward.