Configuring taxes for an online business can be a complex task, especially when operating in the European Union. With varying rules for domestic sales, cross-border transactions, and exports, businesses must navigate a web of regulations to ensure compliance. This post provides a practical guide to understanding and managing EU tax requirements in Liferay. We'll discuss different scenarios-selling within your country, across EU borders, and outside the EU-and highlight potential challenges, including Liferay's default limitations and how to address them.