EES, ETIAS, ETA: three systems, and only one of them is British

If you have been told you need an ETIAS for your trip to London, someone has confused two systems. If you have been told the Entry/Exit System is something you apply for, someone has confused three.

Here is what each one actually is, in the order a traveller meets them.

The short version

Two of those are European and unrelated to the UK. The third is British and unrelated to the EU. They are not stages of one process.

EES is a record, not an application

The Entry/Exit System became fully operational on 10 April 2026. It replaced the passport stamp with a digital record: your facial image, your fingerprints, your travel document and the date and place of every entry and exit.

You do not apply for it and you cannot opt out of it. It happens to you at the border. What it changes is not the rule but the evidence: the count of your days is now exact, held by the authority that decides whether you may enter, and not visible to you. That is worked through in what the EES changed.

Two EU countries still stamp by hand because they do not operate it: Cyprus and Ireland.

ETIAS is an application, and it is not open yet

ETIAS is a travel authorisation for visa-exempt nationals visiting European countries. It is the closest European equivalent to the British ETA — an online application, a fee, a decision before you travel.

The critical fact about it today is that it is not yet operational. There is nothing to apply for, and any site inviting you to apply now is not offering a government service. When it does open, the authorisation attaches to the passport you applied with. The current state of play, and the Cyprus complication, are in ETIAS is not open yet.

ETA is British, and it is live

The United Kingdom's electronic travel authorisation is a separate scheme run by a separate government for a separate territory. It costs 20 pounds, covers visits of up to 6 months to the UK, Jersey, Guernsey and the Isle of Man, and explicitly does not guarantee entry.

It has nothing to do with the Schengen area. Holding one gives you no rights in Europe, and holding a European authorisation gives you none in Britain. See an ETA is permission to board.

You may well need more than one

These are not alternatives, which is the part that trips people up. A traveller flying from New York to Paris and then on to London, on a single trip, can be inside all three systems: registered by EES at the French border, holding an ETIAS once it opens, and holding a UK ETA for the London leg.

Needing one tells you nothing about whether you need another.

What none of them does

Not one of these systems tells you how many days you have left.

EES computes your remaining days and reports them to border authorities, not to you. ETIAS, when it opens, will authorise travel without tracking your allowance. The British ETA governs a different country with a different limit entirely.

So the arithmetic remains yours. The difference is that the other side's arithmetic is now exact, which is a poor time to be estimating. Count the days before you are standing at a desk where somebody else already has the answer.

Sources: European Union — what the EES is; European Union — official ETIAS website; GOV.UK — Get an electronic travel authorisation (ETA) to visit the UK.