Guides
Clear answers on VAT, invoices and e-invoicing.
E-invoice · Comparison
XRechnung vs. ZUGFeRD: the differences and when you need each format
2 min read
Invoice · Private
Writing an invoice without a business: what private individuals need to know
2 min read
VAT · § 19 UStG
The small business scheme 2026: limits, advantages and drawbacks under § 19 UStG
8 min read
Invoice · Early payment discount
Skonto: what it is, how to calculate it and how to word it on an invoice
7 min read