Invoicing & Accounting Guide
Practical articles on e-invoicing, taxes, and financial management for freelancers and companies.
How to Write an Invoice in Germany: A Beginner Guide
Step-by-step guide for freelancers and the self-employed: how to start invoicing in Germany in 2026 - from tax registration to your first e-invoice.
Calculating Skonto: Formula, Example & Effective Annual Rate
How to calculate Skonto (early-payment discount) correctly: formula for the discount amount and effective annual rate, plus an example and when Skonto is worth it.
Cancellation Invoices (Stornorechnung): How to Fix Errors
Made a mistake on an invoice? Learn how to legally issue a Stornorechnung in Germany under GoBD rules and cancel E-Invoices in 2026.
Invoice Numbering Rules in Germany (GoBD & UStG)
How to structure your invoice numbers correctly in Germany. Avoid GoBD violations, missing gaps, and ensure E-Invoicing compliance in 2026.
Reverse Charge Mechanism Explained: B2B Rules & E-Invoicing
What is the Reverse Charge mechanism in Germany & the EU? Rules for 2026, required invoice statements, VAT IDs, and XML codes for E-Rechnung.
How to Write a Correct Invoice in Germany: Mandatory Fields
Which mandatory fields belong on a B2B invoice in Germany? Avoid mistakes, protect your VAT deduction, and get ready for e-invoicing in 2026.