What it means
The rule flags a cac:FinancialAccount under cac:TaxRepresentativeParty, a bank account such as an IBAN. EN 16931 has no bank account field for the tax representative (BG-11). The account the buyer pays into is given in the payment instructions (BG-16), for a bank transfer as the payment account identifier (BT-84). The check is the same for invoices and credit notes.
Why it matters
EN 16931 does not use a financial account under the tax representative in a UBL invoice or credit note.
How to fix it
If the buyer should pay into that account, enter it in the payment instructions in your invoicing software as the account for a bank transfer, with its account identifier, such as an IBAN. Then remove the financial account from the tax representative details in this invoice or credit note. If you build the XML yourself, delete cac:FinancialAccount from cac:TaxRepresentativeParty and use cac:PaymentMeans/cac:PayeeFinancialAccount for the payment account.
Once the file is corrected, check it again for free: Validate an invoice against EN 16931
Or fix the invoice in a form and download the corrected file, for 1 credit: Fix a rejected e-invoice
The rule as published
A UBL invoice should not include the TaxRepresentativeParty FinancialAccount Where this rule applies
| Rule set | Version |
|---|---|
| EN 16931 (UBL) | 1.3.17 |
| EN 16931 (UBL credit note) | 1.3.17 |
| XRechnung 3.0 (UBL) | 3.0.2 |
| XRechnung 3.0 (UBL credit note) | 3.0.2 |
| Peppol BIS Billing 3.0 (invoice) | 2026.5 |
| Peppol BIS Billing 3.0 (credit note) | 2026.5 |
| SI-UBL 2.0 / NLCIUS (invoice) | 2.0.3.13 |
| SI-UBL 2.0 / NLCIUS (credit note) | 2.0.3.13 |
| France CTC (UBL invoice) | 1.4.0-04 |
| France CTC (UBL credit note) | 1.4.0-04 |
| CIUS-RO UBL Invoice 1.0.9 | 1.0.9 |
| CIUS-RO UBL Credit Note 1.0.9 | 1.0.9 |
Check your file
Drop your e-invoice to see whether UBL-CR-341 still fails, and which other rules do.