Ist XRechnung in Deutschland verpflichtend?

Yes. XRechnung is required by law for B2G invoices. Every invoice sent to a German government agency must be submitted in the XRechnung format.

Ist efsta XRechnung auch für B2B geeignet?

Yes, even though XRechnung is not yet mandatory in the B2B sector, efsta XRechnung can be used for B2B scenarios—particularly to prepare for future requirements. Starting January 1, 2027, it will be mandatory for B2B companies with an annual turnover of €800,000 or more. Starting January 1, 2028, XRechnung will be mandatory for all companies.

Unterstützt efsta den Versand über Peppol?

Yes. efsta supports Peppol transmission for B2G and B2B invoices.

Muss ich mein bestehendes ERP-System ersetzen?

No. efsta XRechnung integrates with existing ERP and billing systems and handles the creation, validation, and delivery of XRechnung invoices.

XRechnung Software

XRechnung Overview

With the efsta XRechnung software, companies can create and send structured e-invoices in compliance with legal requirements in B2G and B2B environments.
Companies, software providers, and integrators can reliably meet these requirements with the efsta e-invoicing solution—without in-house development and without replacing existing processes.

efsta XRechnung is an API-based XRechnung software that integrates seamlessly into existing ERP and billing systems and handles legally compliant delivery via email or Peppol.

On this page you will find:

An overview of efsta's XRechnung software for Germany
The key benefits of the efsta XRechnung solution
The differences and applications for B2G and B2B
A simple explanation of XRechnung and Peppol
How to create, validate, and send XRechnungen in compliance with the law
Information on technical integration and developer documentation
Answers to frequently asked questions and the option to contact us directly

Why XRechnung software is essential today

In Germany, electronic invoices are already well-established in the B2G sector. Invoices sent to public sector clients must generally be submitted in a structured format such as XRechnung, while PDF or paper invoices are generally not accepted.

‍Their relevance is also growing significantly in the B2B sector:

‍As ofJanuary 1, 2025, companies must be able to receive e-invoices.

Starting January 1, 2027, the requirement to issue e-invoices will initially apply to companies with a previous year’s turnover of more than 800,000 euros; starting January 1, 2028, it will apply to all companies in the B2B sector.

Common challenges:

complex and evolving XRechnung specifications
manual, error-prone invoicing
invoices rejected due to technical errors
significant coordination effort between Finance and IT

efsta XRechnung software solves exactly these problems.

The Benefits of the efsta XRechnung Software

Compliant with the law and always up to date

Creation, receipt, and validation of compliant XML files
Compliance with the current German XRechnung standards (3.0)
Lower risk of rejections and delays

Easy integration into existing systems

API-based integration with ERP, POS, and billing systems
No need to replace existing software
Quick implementation for IT teams and integrators

Support for various transmission methods

B2G: Submission via the Peppol network (AS4) using a Peppol Access Point
B2B: Delivery via email or the Peppol network
Automatic selection of the appropriate channel based on the scenario and desired integration

Full transparency & audit assurance

Complete event and audit trail for each invoice
Clear traceability of creation, validation, and delivery
Support for internal controls and external audits

XRechnung for B2G and B2B – a unified workflow

B2G: XRechnung for public sector clients

XRechnung is mandatory
Transmission via Peppol
Addressing via the agency's routing ID
High standards for data quality and compliance

B2B: XRechnung for Business Partners

Sending XRechnung invoices is not yet mandatory
Increasingly used for standardization and to prepare for regulation
Delivery is available via email or the Peppol network

efsta XRechnung covers both use cases with the same software.

XRechnung and Peppol – Explained Simply

XRechnung defines the content of the invoice. Peppol defines the transmission method.
‍
The following applies to invoices sent to German government agencies:

XRechnung as a mandatory format
Delivery via the Peppol AS4 network - via Peppol Access Point

For B2B invoices:

XRechnung as an optional format
Delivery by email
Delivery is also possible via the Peppol AS4 network, using a Peppol access point

Create an X-Invoice – simple and compliant with the law

Many companies are faced with the question of how to create an XRechnung correctly without relying on manual processes or in-house developments. With efsta XRechnung, companies can automatically create, validate, and send XRechnungen:

Structured invoice data is imported from the source system
The XRechnung is generated in accordance with current legal requirements
Required fields and validation rules are checked automatically
The completed XRechnung is sent via email or Peppol in compliance with the law

This allows you to create XRechnungen securely, reliably, and at scale – for B2G and B2B.

Contact an expert now

Technical Integration of the XRechnung Software

efsta XRechnung provides all its functions via an API.
This allows the software to be flexibly integrated into existing system environments – without altering the existing invoicing logic.