For many employees, working abroad is an attractive employee benefit. And you see something of the world, which is a nice additional benefit. Especially when everything is well organised, you can keep this up for quite a while. However, in our practice, we regularly see problems arise because there are all kinds of formalities of which the employer and employee were not aware. Such as a WagwEU (Posted Workers in the European Union (Working Conditions) Act) reporting requirement in the Netherlands or a Limosa reporting requirement in Belgium. Or a tax audit that suddenly leaves you with a high additional tax assessment, because you have mistakenly paid tax abroad, and not in the UK. Ambiguities about customs formalities in the context of Brexit could also throw a spanner in the works.