E-Invoicing 2025: What SMEs Need to Know Now
E-invoicing mandatory since 2025 for B2B in Germany. Which formats qualify, which deadlines apply, and where the typical pitfalls are. Practical analysis.
Note: This article covers German e-invoicing regulations (Wachstumschancengesetz). The requirements are specific to companies operating in Germany.
Since January 1, 2025, companies in the B2B sector must be able to receive e-invoices. The e-invoicing mandate is a core topic in my consulting on compliance and regulatory requirements for SMEs. Starting 2027, sending e-invoices will also be mandatory (with a transition period until 2028 for smaller companies).
E-Invoice Definition: What Qualifies Under German Law
A PDF via email is not an e-invoice. Germany’s Wachstumschancengesetz (Growth Opportunities Act) defines e-invoices as structured electronic formats compliant with EN 16931. In practice, that means:
- ZUGFeRD 2.x (PDF with embedded XML)
- XRechnung (pure XML)
Everything else — PDF, Word, scanned documents — is classified as a “miscellaneous invoice” from 2025 onward and does not meet the requirements.
E-Invoicing Mandate 2025: The Three Most Common Mistakes SMEs Make
1. “We already use PDF — that’s enough, right?”
No. A PDF is not a structured format. Tax authorities expect machine-readable data. If you only send PDFs, you won’t be compliant from 2027.
2. “Our tax advisor will handle it”
Your tax advisor processes documents — they don’t define your invoicing process. The transition affects ERP, accounting software, and internal workflows. This is a process task, not a bookkeeping task.
3. “We’ll wait until it’s mandatory”
The receiving obligation is in effect now. If you still can’t receive e-invoices today, you already have a problem — at the latest when a major customer sends invoices in ZUGFeRD format.
Implementing E-Invoicing: What SMEs Should Do Now
- Take stock: What software do you use for incoming/outgoing invoices? Can it handle ZUGFeRD/XRechnung?
- Ensure reception: At minimum, set up an email inbox or portal that can accept and process structured invoices
- Plan for sending: Create a timeline for switching to e-invoice dispatch (no later than Q3 2027)
- Check archiving: GoBD-compliant storage of structured data (not just the PDF, but the XML)
Bottom Line
E-invoicing is neither a surprise nor a bureaucratic nightmare. Act now, and you have plenty of time. Wait, and 2027 becomes a problem.
Next Step
Need support with the transition to e-invoicing? I help mid-market companies implement e-invoicing and GoBD compliance pragmatically — without overengineering.
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