Starting 2 April 2024, Croatians planning a short trip to the United Kingdom will need to sort out a new travel permit before packing their bags.

The UK is rolling out its Electronic Travel Authorisation (ETA) scheme, and it’s set to apply to all foreign visitors—including those from the European Union, like Croatia.

The change comes as part of Britain’s updated immigration system, according to an announcement from the Croatian Embassy in London.

So, what’s this ETA all about? It’s a digital entry permit that costs £10 (roughly €12) and can be applied for through a new mobile app launching on 5 March.

The process is designed to be straightforward, and full details—like how to apply and who qualifies—are available on the UK government’s official website

It’s a small extra step, but one that’ll be essential for anyone heading to England, Scotland, Wales, or Northern Ireland for a quick visit.

There are some exceptions, though. If you already need a visa for a short stay in the UK, you’ll stick with that—ETA doesn’t apply to you. British and Irish citizens, dual nationals with UK or Irish passports, and people with approved UK residency are off the hook too.

The same goes for those just passing through an airport without crossing the border during a layover.

The Croatian Embassy in London has made it clear they won’t be able to help with the nitty-gritty of the process. Whether it’s figuring out the app or filling out forms, travellers will need to rely on the UK government’s guidance.

The embassy also can’t sway any decisions about who gets an ETA—it’s all in the hands of British authorities.