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Bundesportal | Registering employees with a foreign connection in the Minimum Wage Notification Portal (Meldeportal Mindestlohn)
If you are a foreign employer that employs staff in Germany, you must give notification of this through the Minimum Wage Notification Portal. The same applies if you are a German employer employing foreign temporary workers.
β https://verwaltung.bund.de/leistungsverzeichnis/en/leistung/99006026104000