How can I set the global/standard tax rate?

Q: how can I set the standard tax rate for all countries? Do I really have to set it individually even if I am always charging 20%?

A: Assuming that you’re from the EU, there’s only a limited amount of countries you need to charge that is all of the countries within EU. You shouldn’t charge taxes outside of the EU as the shop does not have to pay for the taxes that are shipped internationally.