ETIAS and dual nationality: which passport to use

If you hold more than one passport, the question of which one to use for Europe just became more consequential. The Entry/Exit System has been recording your Schengen crossings since 12 October 2025, building a digital travel record tied to the specific passport you scan at the border. ETIAS has no official start date yet (press reporting points to 2027), and when it launches your authorisation will be linked to the one passport you apply under. Getting the choice wrong costs you nothing today, but it can create unnecessary paperwork later.

If you hold an EU, EEA, Swiss or Irish passport: stop here

You do not need ETIAS. Citizens of EU and EEA countries, Switzerland and Ireland have free movement rights in Europe and are entirely out of scope for ETIAS.

If one of your passports falls into any of these categories, the official ETIAS FAQ says you must use it to enter the 30 countries requiring ETIAS. There is nothing to apply for, no fee to pay and no pre-travel authorisation needed. Your second passport, wherever it is from, does not change that. If the European passport has expired, contact the country that issued it about a new one.

Two non-EU passports: use the one that suits you best

If neither of your passports is from an EU, EEA or Swiss country, you are in ETIAS territory regardless. The choice of which passport to travel on is yours, with one firm constraint: the ETIAS authorisation will be linked to one specific passport number. If you apply on your UK passport, you must travel on that UK passport. If the numbers do not match, the official FAQ says you will be refused boarding and entry at the border.

If one of your passports comes from a country that requires a Schengen visa and the other does not, the answer is clear: use the visa-exempt one. It means applying for ETIAS when it opens rather than going through the longer consular visa process each time you visit.

If both passports are from visa-exempt countries, it is worth choosing the one with the longest remaining validity. ETIAS is valid for 3 years or until your passport expires, whichever comes first. A passport expiring in 18 months gives you an ETIAS that expires in 18 months, regardless of the three-year rule.

EES complicates the picture for some dual nationals

Before EES, your Schengen crossing history was not reliably recorded. Now it is. If you have crossed Schengen since 12 October 2025 on a non-EU passport, the EES system has been building a record of those entries and exits under that passport number.

This matters if you have been inadvertently accumulating an EES record on a non-EU passport while also holding an EU one. EES does not apply to EU citizens, and once ETIAS starts the official guidance is that dual nationals must enter on their European passport. Switching now means ETIAS is a non-issue, and your EU free movement rights apply cleanly.

The UK-EU dual national case

Many British nationals also hold an EU passport, often an Irish one through family descent. The practical answer here is simple: enter Europe on the Irish passport, which carries EU free movement rights. EES does not apply to Irish citizens, and no ETIAS is needed.

Ireland itself uses neither EES nor ETIAS. But for visiting France, Spain, Italy or any other EU or Schengen country, the Irish passport is the one to use.

What happens if you get a new passport before or during ETIAS validity

ETIAS is tied to the passport it was issued for. If you renew that passport, or replace it after losing it, the existing authorisation becomes invalid. You will need to apply again, paying the €20 fee a second time. There is no transfer mechanism.

The same applies if you apply for ETIAS and then acquire a new passport before your first trip. The new document number will not match the ETIAS on file. Apply again on the new passport before you travel.

For travellers close to passport expiry, renewing before applying for ETIAS is the sensible move. A full guide to passport timing and ETIAS is on the ETIAS and passport expiry page.

The bottom line

Hold an EU, EEA, Swiss or Irish passport? Use it for Schengen travel and ETIAS does not apply to you. Hold two non-EU passports? Pick the one you will consistently travel on, make sure it has enough validity to outlast a three-year ETIAS, and apply under that document. The full ETIAS dual citizenship guide covers the specific scenarios in more detail. If you are unsure whether you need ETIAS at all, the nationality checker gives a direct answer.

No action is required yet. Applications are not open. The official EU ETIAS portal at travel-europe.europa.eu/etias will carry the announcement when applications open.