[norah11]

Many EU tax systems are available in English, including countries you might not expect like the Netherlands, Finland, Lithuania etc. I know of an American that doesn't have any problem doing business in Lithuania for instance. It's not particularly harder, however some EU tax systems are much better than others.

The UK will no longer be part of the EEA after Brexit. Iceland, Norway, Swiss are part of the EEA. EEA gives you access to the market as an EEA citizen. That means for the UK you will have to deal with visa and the problems that come along with it, if you opt for UK.

If you move your company, you should move to. But EU is mostly the same, not like you move to the 3rd world. Some countries have a better brand name than others, but don't be blinded by brand name.

Because you should live there, you need to consider more than taxation, like perhaps crime rate: https://www.numbeo.com/crime/rankings_by_country.jsp?title=2...

Talk with accountants. Online information is often old or incomplete.