Summary – 3 key takeaways
- From 1 January 2025, all German businesses must be able to receive EN 16931‑compliant electronic invoices, with phased mandatory issuance from 2027 depending on turnover.
- Only structured electronic formats (e.g. XRechnung, ZUGFeRD ≥ 2.0) qualify as E‑invoices; PDFs and scanned invoices are no longer sufficient for VAT purposes.
- Successful implementation requires GoBD‑compliant archiving, robust validation controls, and clearly defined inbound and outbound e‑invoicing processes to safeguard deductibility of input VAT.
Source bstbk.de
Article
Introduction
Germany has entered a new phase of VAT digitalisation with the introduction of mandatory B2B electronic invoicing as of 1 January 2025. Enacted through the Growth Opportunities Act (Wachstumschancengesetz), the reform fundamentally changes how domestic B2B transactions are documented for VAT purposes. The FAQs issued by the Bundessteuerberaterkammer (status: 3 March 2026) provide detailed operational guidance and clarify how tax, technology, and process requirements interact in practice.
Phased introduction and scope
The reform follows a staged approach. Since 1 January 2025, all businesses established in Germany must be technically capable of receiving electronic invoices. The obligation to issue E‑invoices will apply from 1 January 2027 for businesses with prior‑year turnover exceeding €800,000 and from 1 January 2028 for nearly all remaining businesses. Certain transactions remain excluded, notably VAT‑exempt supplies under § 4 nos. 8–29 UStG, small‑value invoices, transport tickets, and supplies by small enterprises (although even small enterprises must be able to receive E‑invoices).
This first phase focuses on format compliance without mandating a specific transmission channel. A second phase, expected around 1 July 2030, is envisaged to introduce a transactional reporting system based on E‑invoices submitted via registered platforms.
What qualifies as an E‑invoice
Only invoices issued in a structured electronic format that allows automated processing qualify as E‑invoices. These must comply with EN 16931 or be interoperable with it. In practice, this includes formats such as XRechnung, ZUGFeRD (version 2.0 or later), Peppol BIS Billing, Factur‑X and related CIUS formats. Conventional PDFs, Word files or scanned paper invoices are explicitly classified as “other invoices” and no longer meet the statutory standard.
For hybrid formats like ZUGFeRD, the structured XML component is decisive for VAT purposes. In the event of discrepancies between the XML data and the human‑readable PDF, the XML content prevails when assessing input VAT deductibility.
GoBD‑compliant storage and archiving
Electronic invoicing significantly raises the bar for archiving and documentation. The structured invoice dataset must be stored unchanged, in its original format, for at least eight years, with longer retention where required (e.g. property‑related adjustments). Archiving systems must ensure authenticity, integrity, readability and full machine‑readability throughout the retention period.
If invoices are transmitted via email, the email itself generally does not need to be retained if it serves purely as a transport medium. However, businesses may choose to retain it voluntarily to reinforce the audit trail. Where invoices are forwarded to tax advisors or stored in document management systems, clear indexing and bidirectional links between invoice data and accounting records are strongly recommended.
Inbound invoice processing and VAT risk management
Incoming E‑invoices must be validated systematically. The FAQs distinguish three categories of errors:
- Format errors, which prevent compliance with statutory invoice requirements and generally block input VAT deduction (outside transitional relief).
- Business rule errors, which may or may not affect VAT deduction depending on whether VAT‑mandatory data elements are concerned.
- Content errors, such as incorrect VAT rates or insufficient descriptions, which generally preclude input VAT deduction.
Validation tools (e.g. KoSIT validators) can detect format and business rule errors but do not replace the obligation to verify substantive correctness. Consequently, visualisation tools and internal control procedures remain indispensable. For hybrid invoices, checks must always be performed against the structured XML data, not OCR‑extracted PDF content.
Outbound invoicing and process integration
For outgoing invoices, businesses must ensure that their ERP or billing systems generate compliant structured datasets. Invoice creation must be restricted to trained, authorised staff, and include all mandatory data under §§ 14 and 14a UStG. Where EU cross‑border supplies are concerned, qualified VAT identification number checks remain mandatory and must be documented.
Transmission may still occur via email, platforms such as Peppol, customer portals or direct system‑to‑system interfaces. To safeguard authenticity and integrity, the use of qualified electronic signatures, EDI arrangements or well‑documented internal control procedures is recommended.
Conclusion
Germany’s B2B E‑invoicing mandate is more than a technical format change; it reshapes VAT compliance workflows end‑to‑end. Businesses that treat E‑invoicing merely as an IT exercise risk compliance gaps, particularly in archiving, validation and input VAT control. Early process redesign, clear governance between tax and IT, and systematic use of validation tools will be essential—not only to meet current German requirements, but also to prepare for the future EU‑wide digital VAT reporting landscape under ViDA.
Briefing document & Podcast: Germany E-Invoicing B2B Mandate, Timeline and Compliance – VATupdate
- See also
- Join the Linkedin Group on Global E-Invoicing/E-Reporting/SAF-T Developments, click HERE
- Join the LinkedIn Group on ”VAT in the Digital Age” (VIDA), click HERE
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