Interim and final invoices as XRechnung
What is an interim invoice, how does the final invoice deduct interim payments and which invoice types apply in XRechnung? With a sample calculation.
Blog
Articles on e-invoicing, XRechnung, ZUGFeRD and digital invoice processes.
XRechnung to Deutsche Bahn: requirements
What Deutsche Bahn requires for XRechnung: purchase order number in BT-13, Leitweg-ID, embedded attachments and sending by email or Peppol.
Payment reminder or dunning letter? The difference
Payment reminder or dunning letter? Legally, it is the content that counts, not the subject line. When default occurs and what you are entitled to claim.
ZUGFeRD or XRechnung? The differences explained
ZUGFeRD or XRechnung? XRechnung is pure XML, ZUGFeRD a PDF with embedded XML. When each format is the right choice and which profiles apply.
XRechnung fields: all BT numbers explained
XRechnung fields at a glance: What do BT-1, BT-10 or BG-25 mean? This glossary explains the most important BT and BG numbers, sorted by topic.
Opening and displaying an XRechnung: how it works
Opening an XRechnung: why the XML looks unreadable in an editor and how to display an XRechnung with a viewer, the KoSIT visualisation or e-invoicing software.