The official language is German, and most bachelor's teaching is in German. If German is not your first language, you need level C1 for a bachelor's programme. The university accepts, among others, certificates from the Goethe-Institut, TestDaF, DSH, telc and ÖSD.
For business administration (BSc Business Administration) you also need English at the level of a secondary school leaving certificate – three specialisations in this programme are taught almost entirely in English. The master's in Information Systems, for example, is also taught in English; you can check the language of the other master's programmes on their websites. If the university asks for an English certificate, see IELTS or TOEFL.
Sources: European Commission – Study in Europe (education.ec.europa.eu/study-in-europe), Eurostat, official national study and residence portals and authorities, Eurodesk, enic-naric.net, studentnews.eu. As of September 2026.
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