What it means
The rule checks the seller's legal entity block (cac:PartyLegalEntity) and fails when it holds a cbc:CorporateStockAmount, the seller's share capital given as an amount. EN 16931 has no field for that. EN 16931 only carries share capital as free text, in the seller's additional legal information (BT-33).
Why it matters
This is only a warning, so the invoice is still accepted. A separate share capital amount sits outside EN 16931, so the recipient's software is not expected to read it and it is normally dropped. BT-33 is part of the standard, so it is the safer place for this detail.
How to fix it
Remove cbc:CorporateStockAmount from cac:AccountingSupplierParty/cac:Party/cac:PartyLegalEntity and export again. If your invoice has to show your share capital, put it in the seller's additional legal information, which is cbc:CompanyLegalForm in UBL, for example as the words Share capital followed by the amount. In your invoicing software, look for a legal information or company details field in the seller settings. It is worth fixing when the invoice must show the share capital, because the separate amount may not be read.
The rule as published
A UBL invoice should not include the AccountingSupplierParty Party PartyLegalEntity CorporateStockAmount 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-183 still fails, and which other rules do.
Related rules
- UBL-CR-184 The seller's fully paid shares flag should be left out
- UBL-CR-185 The seller's registration address should be left out
- UBL-CR-186 The seller's corporate registration scheme should be left out
- UBL-CR-187 The seller's head office party should be left out
- UBL-CR-188 The seller's shareholder party should be left out
- UBL-CR-189 The seller contact's identifier should be left out