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Warning

UBL-CR-396: Leave out the tax details of the delivery party

In short

Warning: worth checking.

UBL-CR-396 means the delivery party has tax registration details (cac:PartyTaxScheme), which EN 16931 does not use there. Remove cac:PartyTaxScheme from cac:Delivery/cac:DeliveryParty.

On this page

What it means

This rule looks at the delivery party (cac:DeliveryParty), the party the goods or services go to, in the delivery information of a UBL invoice or credit note. It checks that the party has no cac:PartyTaxScheme, where a VAT number or other tax registration would sit. The seller's VAT number (BT-31) and the buyer's VAT number (BT-48) have their own fields elsewhere in the invoice.

Why it matters

EN 16931 does not use tax registration details in the delivery party information. This check does not determine which VAT numbers are required elsewhere.

How to fix it

Change your invoice export so it omits the delivery party's cac:PartyTaxScheme block. Do not delete tax details from your customer records merely to address this rule. Leave any applicable seller and buyer VAT numbers in their own fields. If you build the XML yourself, delete cac:PartyTaxScheme from cac:Delivery/cac:DeliveryParty. Recheck the exported file.

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 DeliveryParty PartyTaxScheme

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-396 still fails, and which other rules do.

Updated 6 November 2026