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Warning

UBL-CR-173: The seller's tax details should not include a registration address

In short

Warning: worth checking.

UBL-CR-173 means the seller's tax details contain a registration address (cac:PartyTaxScheme/cac:RegistrationAddress), which EN 16931 does not use. Remove it and make sure the seller's postal address (BG-5) is complete.

On this page

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
Rule text from phive-rules 4.6.4.

Check your file

Drop your e-invoice to see whether UBL-CR-173 still fails, and which other rules do.

Updated 6 November 2026