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Bundesportal | Taxing services provided in tax havens for individuals and companies based in Germany
If you as an individual or company pay for services from a service provider based in a non-cooperative tax jurisdiction, under certain circumstances you must withhold, declare and pay a portion of your payments as income or corporation tax.
β https://verwaltung.bund.de/leistungsverzeichnis/en/leistung/99102151058000