And I believe you're right. And the EU is a "single market", which means someone residing in Germany can buy things in France and don't have to worry about paying import tax (1). Switzerland is famously not part of the EU, so there are limits and taxes (import tax plus VAT of where you are importing the good) when goods cross the Swiss border.

(1) Skimming Wikipedia suggests otherwise: https://en.wikipedia.org/wiki/European_Union_value_added_tax