$ ls ~/guides

Short, practical guides behind the tools, in plain English. Not tax or legal advice.

• E-invoicing in Germany, explained in EnglishGermany's B2B e-invoice mandate in plain English: who must send and receive, the 2027 and 2028 deadlines, XRechnung vs ZUGFeRD, what to do now.
• How to write an invoice in Germany, in EnglishWhat a German invoice must contain (§ 14 UStG), in English: tax number, invoice number, VAT note for Kleinunternehmer and reverse charge, retention.