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Public Sector (B2G)

Rules governed by EU Directive 2014/55/EU and the national E-Rechnungs-Gesetz. XRechnung via centralised platforms with valid Leitweg-ID in BT-10.

Federal Level: ZRE and OZG-RE

ZRE

Zentrale Rechnungseingangsplattform — direct federal administration (unmittelbare Bundesverwaltung).

OZG-RE

Indirect federal bodies and certain federal states (Berlin, Brandenburg, Thuringia, Saxony).

Mandatory Fields (E-Rechnung-Bund)

Leitweg-ID of recipient — mandatory in BT-10

Payment terms — BT-9 / BT-20

Recipient IBAN — BT-84

Issuer e-mail contact — BT-41

Leitweg-ID Structure

Routing address (Bund/state + subordinate entities), optional financial address (organisational unit), and two check digits.


      04011000-12345ABCXYZ-86

ZRE & OZG-RE: Platform Consolidation

The German Federal Government is consolidating its two invoice receipt platforms into a single one — OZG-RE — which will serve all federal recipients. Below is how the two portals compare and how to submit invoices via OZG-RE.

Automatic Peppol Migration

All existing Peppol registrations and settings will be automatically migrated from ZRE to OZG-RE. No action is required from invoice issuers.

Aspect	ZRE	OZG-RE
Full name	Zentrales Rechnungseingangsportal (Central Invoice Submission Portal / CISP)	OZG-konforme Rechnungseingangsplattform (OZG-Compliant Invoice Entry Platform)
Target group	Direct federal administration (direct federal authorities)	Indirect federal administration, federal states and municipalities
Engagement	Mandatory for invoices to federal authorities	Required if the invoice recipient specifies this as the input channel

19 September 2025

ZRE stops accepting new invoice submissions — switch your channel to OZG-RE before this date.

31 December 2025

Final shutdown of ZRE — OZG-RE remains as the only federal receipt platform.

Four Ways to Submit Invoices via OZG-RE

Send your XRechnung file by email through your OZG-RE account

Submit via the Peppol network — OZG-RE registration not required

Test Identifiers (Peppol Verification)

Use these IDs to send a test invoice for verifying your Peppol sender ID in OZG-RE:

Test Peppol Recipient ID:


        0204:99661-WEBSERVICEOZG-28

Test Leitweg-ID:


        99661-WEBSERVICEOZG-28

FAQ

The OZG-RE portal works very simply.

Register online for the portal (Click here).
Send your invoice to OZG-RE
Invoice is processed
The recipient receives the invoice

Registration is not mandatory for sending via Peppol. Registration is mandatory for using other delivery methods and for status tracking.

If you wish to submit your invoice to OZG-RE via the PEPPOL network, registration is not required.

However, you will not be able to view the status of your submissions without registration.

Company information:

Your company name.
Your preferred language.
Your VAT identification number.
Your tax number.

User information:

Name (first and last name)
Preferred language
Email address
Password

There are four options:

By registering in the OZG-RE portal and manually creating your invoice via the web submission portal.
By registering in the OZG-RE portal and manually uploading a previously created XRechnung file via the OZG-RE portal.
You can log in to the OZG-RE portal and send your upload (as an XRechnung file) via email.
You can submit your invoice via the PEPPOL network (OZG-RE registration not required).

What is the best option for sending invoices via OZG-RE?

Well, the OZG-RE web portal is free and very easy to use if you only have a small number of invoices to send.

However, if you have a large number of invoices to process, it can be quite time-consuming to process them all manually via OZG-RE.

If you have a large number of invoices, we recommend using an invoicing solution like Invoice-Portal. With a solution like Invoice-Portal, you can quickly and easily upload, convert, and send numerous invoices directly to the OZG-RE Portal. All this can be done directly from the software.

All you have to do is:

1. Send your invoice as an XRechnung:

2. And send it by email:

You can check the status of all invoices you have submitted within the OZG-RE portal (provided you are registered).

You can find this information under the "Processing status of submitted X-Invoices" portal tab.

You can find an overview of all OZG-RE invoice recipients on the federal government's website Click here.

To track the status of your invoices sent via Peppol in the OZG-RE portal, you must link your Peppol sender ID (Participant Identifier) to your user account and verify it by sending a test invoice.

To do so, please proceed as follows:

Log in to the OZG-RE portal:
- Log in to your account on the OZG-RE portal.
- Navigate to Company Account Management in the menu on the left.
Enter Peppol ID and generate token:
- Scroll to the section "Linking your PEPPOL ID with your account."
- Enter your Peppol Sender ID in the field.
- Click "Start verification process".
- Click on "Download verification attachment".
- Save the downloaded CSV file with the verification token.
Create a test customer and invoice in the Invoice Portal:
- Now switch to your Invoice Portal (your invoicing software).
- Create a new test customer (invoice recipient) with the following information:
- Create a new test invoice for this customer.
Attach token to invoice and send:
- Scroll to the Attachments/Sending Attachment section in the invoice.
- Add the saved CSV token file as an attachment.
- Select Peppol as the shipping method.
Confirm sending and check verification:
- After sending, the invoice status will initially be "Sent" or similar.
- Return to OZG-RE Portal returns to Company Account Management.
- After successful processing (approximately a few minutes), the status of your Peppol ID should change to "Verification successful".
Use status tracking:
- Once verification is complete, you can view the status of all invoices sent via Peppol here:

Important notes:

The verification token is only valid for a limited time. Therefore, please send the test invoice immediately after downloading it.
The test invoice will not actually be processed, but is only used for verification purposes.

Company Directory

Explore invoicing requirements — open any company to see full details

B2G

Bundeswehr / Bund

Deutsche Bahn

XRechnung

Leitweg-ID required

View details

Regional Specifics (Länder)

Region	Platform	Channels	Key IDs	Specifics
Federal (Bund)	ZRE / OZG-RE	Web, Email, Peppol	`Leitweg-ID (BT-10)`	BT-41, BT-84 and payment terms mandatory
Saxony	OZG-RE	Web, Email, Peppol	`Leitweg-ID (BT-10)`	Peppol encouraged; Web Capture available
Thuringia	OZG-RE	Web, Email	`Leitweg-ID (BT-10)`	IDs issued centrally by TLRZ
Hesse	`e-rechnung@ekrw.hessen.de`	Email only	`Leitweg-ID (BT-10)`	1 email = 1 invoice; 22 MB limit
Baden-Württemberg	ZER	Email, Peppol	`BT-10 + BT-11`	Universities require Project ref in BT-11
NRW	vergabe.NRW	Web	`Leitweg-ID (BT-10)`	Local Leitweg-ID construction examples
Bavaria	OZG-RE / BayLDA	Web, Email	`Leitweg-ID (BT-10)`	State-specific prefixes
Hamburg	Central city portal	Web, Email	`Leitweg-ID (BT-10)`	Correct Behörde/Fachamt identification
Bremen	zERIKA	Web, Email	`Leitweg-ID (BT-10)`	Specific email addresses and attachment rules

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