If you are unsure how this affects you, chat to Caira by Unwildered. Caira can review documents, screenshots, photos, letters, forms and official notices, then help you draft clearer questions before you act. For Germany, treat Caira as a preparation tool rather than a substitute for local regulated advice.
Why This Matters Now
Germany's mandatory B2B e-invoicing transition started before many small businesses felt it. The important planning question is what happens when the practical issuing obligations bite more widely in 2027 and 2028.
A PDF invoice may look electronic, but it is not always the same thing as a compliant structured e-invoice. Businesses should check format, software, archiving and customer requirements before the deadline reaches them.
What To Check
Area | Practical question |
|---|---|
Invoice format | Can your system create a structured e-invoice such as XRechnung or another accepted format? |
Receiving invoices | Can you receive, read and archive e-invoices without losing the underlying data? |
Customer contracts | Do contracts or purchase orders say how invoices must be sent? |
Small business timing | Do transition rules give you more time, and when does that time end? |
Bookkeeping | Will your accountant have access to the structured invoice and audit trail? |
Common Mistakes
assuming any emailed PDF is enough;
waiting until the first customer refuses an invoice;
forgetting incoming invoices and archiving;
not checking whether foreign group companies are in scope;
changing software without testing corrections and credit notes;
keeping only a visual copy where structured data is needed.
Questions To Ask Your Accountant Or Software Provider
Which e-invoice formats can we issue and receive?
When do our issuing obligations start?
Are any of our invoices outside the domestic B2B rules?
How do we archive the structured file?
How do corrections, cancellations and credit notes work?
What should we tell customers before the deadline?
Scenarios That Need Care
1. Customer rejects a PDF invoice
A German customer tells a supplier that a PDF by email is no longer enough. The next step is not to argue about wording. Ask which structured format they accept, whether a transition rule applies, and how corrections should be sent.
2. Accountant cannot read the file
A business receives a structured invoice but saves only a visual copy. That can create bookkeeping and audit problems. Test whether the accountant can read, archive and reconcile the original structured file before volume increases.
3. Group company issues invoices from abroad
A foreign group company invoices a German customer and assumes German B2B rules do not matter. That may be true in some cases and wrong in others. Check the supplier location, customer status, place of supply and contract wording.
How Caira Can Help
Caira can review invoice examples, customer emails, screenshots from accounting software and German tax guidance. She can help you make a checklist before you speak to a Steuerberater or software provider.
Official Sources To Check
German Federal Ministry of Finance: FAQ on mandatory e-invoicing.
German Federal Ministry of Finance: application letter on electronic invoices for domestic B2B transactions.
ELSTER: e-invoice visualisation tool and information.
