BR-DE-25-b

If the payment means is SEPA direct debit (BT-81 with code 59), no credit-transfer data (BG-17) and no card data (BG-18) may be transmitted.

Severity: Error
Applies to: CII, UBL
Rule set: v2026-01-31

Official rule text

Wenn BT-81 "Payment means type code" einen Schlüssel für Lastschriften enthält (59), dürfen BG-17 und BG-18 nicht übermittelt werden.

Why it happens

The most common of the three b-rules: the seller's own bank account sits in every invoice as BG-17 out of habit — with a direct debit it has no business there, since collection is from the buyer's account.

How to fix it

With direct debit, transmit BG-19 only and drop the payee bank account (BG-17) for this invoice. If you want to offer both routes, each invoice still has to commit to one.

NormAPI provides technical validation, not tax or legal advice.