Yes, you can attach accompanying attachments to an electronic invoice.

Please note the following size and format specifications:

  • Web-based data entry: Number of accompanying documents 200, maximum size of all attachments 15 MB
  • Upload: Number of accompanying documents 200, maximum size of e-invoice, incl. attachments 15 MB
  • Email: Number of accompanying documents 200, maximum size of e-invoice, incl. attachments 15 MB
  • Web service via Peppol: Number of accompanying documents 200, maximum size of e-invoice, incl. attachments 15 MB

Permitted formats for accompanying attachments:

  • PDF documents
  • Images (PNG, JPEG)
  • Text files (CSV)
  • Excel spreadsheets (XLSX)
  • Support and OpenDocument spreadsheets (ODS)

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