Germany is moving toward mandatory B2B e-invoicing, driven by both national tax modernization and the broader EU initiative on digital reporting (the VAT in the Digital Age (ViDA) reform package). The key shift is not a single “big bang” mandate in 2028, but a phased transition that already started in 2025, with full structured e-invoicing adoption for domestic B2B transactions expected by the end of the decade.  
As of 1 January 2025, Germany introduced the first binding step: businesses must be able to receive structured electronic invoices in compliance with the legal requirements. This means paper PDFs sent by email are no longer sufficient as the default “invoice standard” between businesses, even though transitional handling is allowed. 

Starting 1 January 2028, Germany enforces mandatory use of electronic invoices for all B2B transactions within the country. This phased approach gives organizations time to align processes, but delays risk operational disruption, penalties, and exclusion from supply chains. 

>>> Want to see it in action? Join SAPs localization experts and get a refresher on how to transition smoothly using SAP Document and Reporting Compliance – registration details at the end <<<

Why ZUGFeRD and XRechnung matter- the two pillars of compliance

Germany effectively converges around two core formats (both compliant with the European semantic standard EN 16931, but differ in implementation style and ecosystem fit): 

• XRechnung
  This is the fully structured XML standard, originally designed for invoicing public authorities. It is strict, machine-readable, and aligned with EU semantic requirements.
• ZUGFeRD
  This is a hybrid format: a human-readable PDF/A invoice with an embedded XML data layer. It’s widely used in the private sector because it is easier to adopt incrementally. 

While XRechnung dominates B2G, ZUGFeRD’s hybrid design makes it the preferred choice for B2B due to its dual readability—critical for partners lacking advanced e-invoicing infrastructure.

Practical implication for businesses

If you operate in Germany or invoice German companies, the key takeaway is:

• PDFs alone will become increasingly non-compliant for B2B transactions
• You will likely need to support both ZUGFeRD and XRechnung, depending on trading partners
• ERP and accounting systems must be upgraded well before full enforcement to avoid invoice rejection and payment delays

Call to Action: Germany’s 2025 transitional phase is a strategic window to future-proof your invoicing workflows and choose the suitable tool for your business. SAP Document and Reporting Compliance solutions can help businesses achieve compliance with both XRechnung and Zugferd formats, regardless of the complexity of their invoicing processes. By automating compliance checks, providing customizable templates, integrating with SAP systems, offering reporting and analytics, and providing multilingual support, SAP Document and Reporting Compliance solutions can help businesses streamline their invoicing processes and avoid costly errors. 

Join SAPs localization experts and get a refresher on how to transition smoothly: 

June 2, 2026 10-11:30 am CET in GERMAN: 
https://event.on24.com/wcc/r/5360725/F350B75A71234CE9BFD50E842F7E318D?partnerref=sapcommunity

June 25, 3:00-4:30 pm CET  in ENGLISH: 
Registration details will be provided soon, stay tuned!