Do you need a passport to go from Munich to Salzburg?
Do you need a passport to go from Munich to Salzburg? You would be better off keeping it in Munich. You have to take the passport with you. That there are no (regular) border controls does not mean that you can cross borders without passport. If you go without passport you're entering Austria illegally.
Do you need a passport to go from Germany to Austria?
Entry. EU citizens are entitled to travel to any other EU country without any special formalities. In order to travel to other EU countries, travellers simply have to possess and carry a valid passport or a valid ID card.