What it means
UBL lets the tax details of a party carry a second address, the one it is registered at for tax. EN 16931 has only one address for the seller, the postal address (BG-5). This rule fails whenever cac:RegistrationAddress is present inside cac:PartyTaxScheme of the seller, even if it is empty.
Why it matters
This rule is a warning, so the invoice is still accepted. The recipient's software reads the postal address and ignores the registration address, so anything only given there is lost. It is worth fixing when the two addresses differ and you want the buyer to see a particular one.
How to fix it
In your invoicing software, check the address of your own company and decide which address should appear on your invoices. If you build the XML yourself, delete cac:RegistrationAddress from cac:AccountingSupplierParty/cac:Party/cac:PartyTaxScheme. Then check that cac:PostalAddress has the street, city, post code and country code.
The rule as published
A UBL invoice should not include the AccountingSupplierParty Party PartyTaxScheme RegistrationAddress 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-173 still fails, and which other rules do.
Related rules
- UBL-CR-174 The seller's tax scheme should not include a name
- UBL-CR-175 The seller's tax scheme should not include a tax type code
- UBL-CR-176 The seller's tax scheme should not include a currency code
- UBL-CR-177 The seller's tax scheme should not include a jurisdiction address
- UBL-CR-178 The seller's legal entity should not include a registration date
- UBL-CR-179 The seller's legal entity should not include a registration expiry date