E-Rechnung vs. PDF: Is a PDF an E-Invoice?
A plain PDF is not an e-invoice. Even when it is sent digitally, a PDF legally counts as a “sonstige Rechnung” (other invoice) — just like paper, JPG, or a Word document. A real E-Rechnung is a structured, machine-readable format compliant with the standard EN 16931.
The legal difference
Since the reform of § 14 UStG (Wachstumschancengesetz), German law clearly distinguishes two terms:
- E-Rechnung: a structured electronic format that complies with EN 16931 and can be processed by machines.
- Sonstige Rechnung: any other form — paper, PDF, JPG, Word.
A PDF therefore falls squarely into the second category. It is a digital file, but legally not an e-invoice.
Why structured data matters
A PDF is made for the human eye: it shows a fixed layout, but the numbers in it are just text and pixels. A machine cannot reliably tell which value is the invoice number, the net amount, or the tax.
An e-invoice stores the same data in a structured way — every value has a defined field. Accounting software reads it directly, with no retyping and no source of error.
| Plain PDF | E-Rechnung | |
|---|---|---|
| Legal classification | sonstige Rechnung | E-Rechnung |
| Machine-readable | no | yes |
| EN 16931 compliant | no | yes |
| Formats | – | XRechnung, ZUGFeRD |
The exception: ZUGFeRD (hybrid PDF)
There is one important exception. A ZUGFeRD file looks like a PDF — but contains embedded XML with the structured invoice data (in France the identical format is called Factur-X). Because the XML part is authoritative, a ZUGFeRD PDF qualifies as a full e-invoice.
The difference: a ZUGFeRD PDF has the structured data set “built in”, a plain PDF does not. From the outside both look the same — what matters is what is inside.
What you should do now
The deadlines are already running:
- Since 01.01.2025: every domestic business must be able to receive e-invoices.
- From 2027: sending becomes mandatory for companies with over €800,000 prior-year turnover.
- From 2028: sending becomes mandatory for all remaining businesses.
For the concrete steps, see E-Invoicing Obligation in Germany. If a file reaches you and you are unsure whether it is a real e-invoice, you can open and check an e-invoice in the browser — a ZUGFeRD PDF is read automatically. For a step-by-step walkthrough, see Open an e-invoice.
Frequently asked questions
Is a PDF an e-invoice?
No. Since the §14 UStG reform, a plain PDF counts as a "sonstige Rechnung" (other invoice), not an e-invoice — because machines cannot reliably extract its data.
Why is a PDF no longer enough?
A PDF is made for the human eye, not the machine. An e-invoice has to be a structured format compliant with EN 16931 that can be processed automatically.
Does a ZUGFeRD PDF count as an e-invoice?
Yes. ZUGFeRD is a hybrid: a PDF with embedded XML. Because the structured XML part is authoritative, it qualifies as an e-invoice.
Do I still have to accept PDFs from 2025?
Since 01.01.2025 you must be able to receive e-invoices. PDFs remain valid only as a "sonstige Rechnung" — with the recipient's consent and during the transition periods.