Do I need German to study or work in Germany?

The short answer is “it really depends,” but we can be much more specific than that—because the actual requirement for German varies greatly depending on your field, the type of university, and even the city where you plan to go.

When English Is Enough

Technology (IT, software engineering): Many German companies, especially startups and multinationals in Berlin and Munich, operate primarily in English.
Master’s/Ph.D. programs in STEM fields: A significant portion of graduate programs at German universities are offered entirely in English.
International academic research: Departments with a strong international presence typically conduct their day-to-day work in English.

When German is practically mandatory

Undergraduate (Bachelor’s) programs: The vast majority are taught in German and require a certificate of proficiency (usually C1 level, such as the TestDaF or DSH).
Healthcare fields (medicine, nursing): require advanced German for patient safety and professional regulatory reasons.
Daily life outside major cities: banks, doctors’ offices, government agencies, grocery stores—almost everything is conducted in German, even if your job is in English.

Deutschkenntnisse sind von Vorteil.

Knowledge of German is an advantage (a common phrase in job postings).

Why it’s worth it even when “it’s not mandatory”

Even in jobs conducted 100% in English, speaking German—even if only at the B1 level—completely changes your quality of life: handling bureaucratic matters on your own, making local friends, understanding what’s happening around you. Many people who rely solely on English report feeling socially isolated in their first few years.

The minimum recommended level, in practice

For immigration and daily life, B1 is enough to handle most everyday situations. For formal work in German or undergraduate studies, a realistic goal is B2/C1.