E-invoicing to large buyers

E-invoicing to Deutsche Telekom: Mail2Scan and mandatory details

Deutsche Telekom takes invoices in centrally through its scan centre. Structured e-invoices travel over the same Mail2Scan addresses as PDF invoices. This page shows the rules that decide whether an e-mail is processed at all.

Your system Structured invoice Deutsche Telekom Mail2Scan Recipient
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Invoicing Deutsche Telekom: the essentials

Operational invoice processing sits with Deutsche Telekom Services Europe AG. Every group company has its own intake address.

Invoice format
XRechnung as structured XML and ZUGFeRD in UBL or CII. PDF only for as long as the statutory transition period runs.
Delivery route
The Mail2Scan address of the respective Telekom company, post to the address named on the order, or an electronic connection.
Key references
Order number, ordering unit and receiving point on every invoice; for services also proof of performance.
Particular rules
A separate invoice for each order. The Mail2Scan address has to sit in the TO field, not in CC.

Which invoice formats does Deutsche Telekom accept?

Telekom takes structured invoices and, during the transition period, unstructured ones over the same channel.

Accepted

  • XRechnung as structured XML
  • ZUGFeRD as a hybrid invoice in UBL or CII
  • PDF for as long as German VAT law still allows it for your company

Not accepted

  • Extra attachments such as JPG, GIF or TXT, these are not taken into account
  • Invoice attachments as a separate file instead of embedded in the invoice file
  • Mail2Scan submissions from suppliers who are connected electronically

Which transition period applies to your company depends on annual turnover. The page e-invoicing in Germany gives an overview.

What has to be on the invoice?

Under the general purchasing conditions of the group, the invoice has to be verifiable. If one of the following details is missing, it is returned for correction and the payment term starts again.

General invoice details

  • The details required by section 14 of the German VAT Act
  • Invoice lines that match the order lines
  • Net prices, with VAT added at the statutory rate
  • For goods, the commodity code and the country of origin

Additional requirements from Deutsche Telekom

  • Order number on every invoice
  • Ordering unit, the Telekom unit that raised the order
  • Receiving point
  • Proof of performance for services
  • Labelling and consecutive numbering for advance, partial, partial final and final invoices
Blue: general invoice details Orange: additionally required by Deutsche Telekom
Invoice Portal / e-invoiceSample view
Customer
Name (BT-44)Telekom Deutschland GmbH
Address53113 Bonn, DE
Document
Number (BT-1)INV-2026-002217
Issue date (BT-2)2026-11-10
Order reference (BT-13)45123456
Buyer reference (BT-10)Unit TD-NL West
Further details Telekom requires
Receiving pointCologne site
Proof of performancefor services

Simplified sample view. The colouring shows typical categories of data, not the legal status of each individual field.

How can e-invoices reach Deutsche Telekom?

Which route applies depends on whether your company is connected electronically. Connected suppliers must not use Mail2Scan.

Mail2Scan

The e-mail channel for PDF and structured e-invoices. Every Telekom company has its own address, looked up in the self-service.

Post

To the invoicing address of the paying entity named on the order. The invoice enters through the scan centre.

Electronic connection

EDI, a connection over a procurement network, or the self-billing procedure ERS.

Supplierinvoice data
Mail2Scanaddress of the entity
Scan centrevalidation 24 to 48 hours
Telekomaccounting system

Rules for the transport mail and for payment

Most rejections do not come from the invoice file but from the e-mail that carries it.

Address in the TO field

E-mails with the Mail2Scan address in CC are not processed.

Attachments inside the invoice file

Invoice attachments must not travel as a separate file, they belong inside the invoice file.

Size and subject

The e-mail must not exceed 10 MB in total. The subject should carry the invoice number. Several invoices may be attached to one e-mail.

No acknowledgement

There is no positive confirmation. Validation takes 24 to 48 hours, only then is the invoice visible in the PTP competence centre.

Payment term

30 calendar days net from the day after a verifiable invoice arrives, and not before performance or acceptance. Payment within 14 calendar days carries a 3 percent early payment discount.

Contractors outside Germany

For services taxable in Germany, no German VAT may be shown; liability shifts under section 13b of the German VAT Act.

Creating an invoice for Deutsche Telekom with Invoice Portal

The route to Telekom can be covered end to end in Invoice Portal, as long as your company is not connected electronically.

1
Step 1

Capture the invoice data

Create the invoice or import the export from your ERP, with the order number and the ordering unit.

2
Step 2

Produce XRechnung or ZUGFeRD

Create the file, embed the attachments and validate against EN 16931.

3
Step 3

Send to Mail2Scan

To the address of the invoiced Telekom company, with the invoice number in the subject.

The Mail2Scan address differs by group company and lives in the Telekom self-service. Invoice Portal does not know that mapping and cannot work it out on its own.

Frequent questions about invoicing Deutsche Telekom

Does Telekom accept XRechnung?
Yes. XRechnung and ZUGFeRD are received over the same Mail2Scan addresses as PDF invoices.
Why was my e-mail not processed?
The most common cause is the Mail2Scan address in CC instead of the TO field. Collective invoices covering several orders and submissions from electronically connected suppliers are turned away as well.
Do I get an acknowledgement?
No. Mail2Scan is a purely technical address. Validation takes 24 to 48 hours, so queries make sense no earlier than two working days after sending.
Where do I find the right address?
Every Telekom company has its own Mail2Scan address. It is listed in the PTP self-service and on the order.
How long is the payment term?
30 calendar days net from the day after a verifiable invoice arrives. Payment within 14 calendar days from the start of that term carries a 3 percent discount.
From checking to sending

Create e-invoices and send them with confidence

With Invoice Portal you create, validate and send structured e-invoices over the delivery channels we support.

  • Certified Peppol access point
  • Creation, conversion and validation of structured e-invoices
  • Integration over the API and the other interfaces we support
Request a demo

Prefer to write? info@invoice-portal.de · +49 561 56014568

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