π bund.de
Bundesportal | Apply to the customs administration for the transfer of electronic accounting abroad
If you wish to relocate your electronic bookkeeping, other required electronic records or both to a country outside the EU, you must apply to do so. This also applies if you want to relocate parts of your electronic bookkeeping or records.
β https://verwaltung.bund.de/leistungsverzeichnis/en/leistung/99102108017000