Supplier Information

Supplier Information
Information on e-invoicing

Where should the e-invoice be sent?

  • If you manage the various JGU departments as separate customers, we recommend using the department-specific email addresses for sending invoices. This helps streamline internal allocation and speeds up processing. The relevant information can be found in the respective order documents (example: rechnungen-fb03@uni-mainz.de).
  • The central email address for e-invoices at Mainz University is rechnung@uni-mainz.de. It should only be used if processing via the department-specific email addresses is not possible. Please note that the invoice must contain the following information to allow for proper allocation. Invoices that do not meet these criteria and therefore require significant effort to allocate will not be processed and must be rejected.
  • The invoice that you send us must contain the word “Rechnung” or “invoice” in the subject line of the email. Please only send us one invoice per message. If you would like to send us multiple invoices, please send them in separate emails.

 

Which formats are accepted?

  • ZUGFeRD 2.1.1/Factur-X and ZUGFeRD 1.0, as defined in the EN 16931 (COMFORT) standard. We do not support the EXTENDED version, except for the fields available in EN 16931, which we are able to process. We kindly recommend using the ZUGFeRD format, which is our preferred option.
  • XInvoice, as defined in the UN/CEFACT CII standards, version 1.2.2, 2.0.0, 2.0.1, 2.1.1, 2.2.0 and 2.3.1, the UBL standard, version 1.2.2, 2.0.0, 2.0.1, 2.1.1, 2.2.0 and 2.3.1 or the KoSIT XInvoice standard for public contracting authorities.

 

What information must the invoice contain?

  • The JGU buyer reference (Leitweg-ID) must be entered in the "BT-10 - BuyerReference" field. Our Leitweg-ID is 07-HSJOGUUNIMZ00-96.
  • The JGU VAT ID must be entered in the "BT-48 - Buyer VAT identifier" field. Our VAT ID is DE 149 065 685.
  • The JGU internal order number must be entered in the "BT-13 - OrderReference/Id" field, if provided by the buyer at the time of the order. If the buyer does not provide an internal university order number, this field should remain empty.
  • The buyer’s email address must be entered in the "BT-58 - Buyer contact email address" field (for ZUGFeRD: EmailURIUniversalCommunication in BuyerTradeParty). Only email addresses with the domain "uni-mainz.de" are permitted.
  • In the "BT-46 - BuyerIdentifier" field, you can enter buyer identification (usually assigned by you), such as our customer number.
  • Additionally, as before, all e-invoices must include the information required under Section 14 and Section 14a of the German VAT Act (UStG).

 

Who can assist me further?

  • If you have any questions about e-invoicing, you can contact us by email at the central e-invoicing support address beere-support@uni-mainz.de.