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How the Irish citizenship process works, start to passport

From your first message to your Irish passport: the steps of claiming Irish citizenship through the Foreign Births Register, who handles each part, what it costs, and how long it takes.

You've got an Irish grandparent, you've heard you might be able to claim citizenship, and now you want the part nobody spells out: what actually happens, when you pay, and how long it really takes. Here's the whole thing, start to passport.

The short version

Irish citizenship by descent is an administrative process, not a court case. You give us a few facts, we tell you honestly whether a route is open, and if it is, we run your case through to your passport. The heavy part, tracking down century-old Irish records and building a clean paper chain, is ours. Prefer to see it as a map? Here's how it works, step by step.

Step 1: Tell us your family line

It starts with a few facts: who your Irish ancestor was, where on the island they were born, roughly when, and whether anyone in your family has already registered with the Foreign Births Register. Two or three minutes, and it's free. You're not signing up for anything.

Step 2: You get a straight answer

A real person on our team reads your line against the Irish Nationality and Citizenship Act 1956 and gets back to you, usually within 24 hours. You'll hear one of three honest answers: a grandparent claim through the Foreign Births Register, a more direct path if a parent was born in Ireland, or, if the line is broken, a straight no. We'd rather tell you the truth than sell you a case that won't work. Sometimes we'll come back with a question or two first, to pin down your line.

Step 3: The agreement

If you qualify, we get your case moving. You'll get an engagement letter with every cost set out up front. Nothing to pay to start, and you sign only when you're ready. From there, the official filing is handled for you by a licensed solicitor.

Step 4: Filing, and the Department's timeline

Your application is prepared and filed with Ireland's Department of Foreign Affairs, then managed through to registration. This is the part that takes patience. It runs on the Department's own clock and often takes several months, with nothing for you to do but wait. What drives both the wait and the cost is in cost and timeline. If a parent was born in Ireland, your case can often skip the register and go straight to a passport.

Step 5: You're an Irish citizen

Once you're entered in the Foreign Births Register, you're an Irish citizen, and you apply for your Irish passport. That's an EU passport: the right to live, work, and study across 27 countries. And you don't give up anything to get it, because Ireland allows dual citizenship and you keep your U.S. citizenship in full.

What you never have to do

For all the weight of what you get at the end, the process asks very little of you:

  • No trip to Ireland, ever.
  • No residency, no language test, no oath.
  • No court. It's administrative, start to finish.
  • No hunting down Irish civil records yourself. That's our job.

Where to start

Tell us where your Irish ancestor was born and roughly when. We'll read your line against the law and tell you straight whether you qualify. It's free, even if the answer turns out to be no. You can start with your family line, or see every step laid out first.

Information current as of July 2026. We update this guidance when the rules change.

See where your family line stands

Reading the law is one thing; reading yourcase against it is another. Send us a few facts about your Irish ancestor and we'll tell you which route fits — citizen parent, Foreign Births Register, or neither — within two business days.

Check my case