What it means
When an invoice line has VAT category O (not subject to VAT), it must not contain a VAT rate (BT-152) at all.
Why it matters
An amount outside the scope of VAT has no rate, not even zero. Zero rated is a different category (Z), so a rate here makes the VAT treatment ambiguous and the invoice is rejected.
How to fix it
In your invoicing software, set the item or line to the category "not subject to VAT" without a percentage. If your software always writes a rate, check for a separate option for supplies outside the scope of VAT, or ask your software provider. In UBL, leave out cbc:Percent in that tax category.
The rule as published
An Invoice line (BG-25) where the VAT category code (BT-151) is "Not subject to VAT" shall not contain an Invoiced item VAT rate (BT-152). Business terms: BG-25, BT-151, BT-152
Where this rule applies
| Rule set | Version |
|---|---|
| EN 16931 (UBL) | 1.3.17 |
| EN 16931 (UBL credit note) | 1.3.17 |
| EN 16931 (CII) | 1.3.17 |
| XRechnung 3.0 (UBL) | 3.0.2 |
| XRechnung 3.0 (UBL credit note) | 3.0.2 |
| XRechnung 3.0 (CII) | 3.0.2 |
| Peppol BIS Billing 3.0 (invoice) | 2026.5 |
| Peppol BIS Billing 3.0 (credit note) | 2026.5 |
| Factur-X 1.09 BASIC | 1.0.9-2 |
| Factur-X 1.09 EN 16931 | 1.0.9-2 |
| Factur-X 1.09 EXTENDED | 1.0.9-2 |
| ZUGFeRD 2.5 BASIC | 2.5.2 |
| ZUGFeRD 2.5 EN 16931 | 2.5.2 |
| ZUGFeRD 2.5 EXTENDED | 2.5.2 |
| SI-UBL 2.0 / NLCIUS (invoice) | 2.0.3.13 |
| SI-UBL 2.0 / NLCIUS (credit note) | 2.0.3.13 |
| NLCIUS (CII) | 1.0.3.13 |
| France CTC (UBL invoice) | 1.4.0-04 |
| France CTC (UBL credit note) | 1.4.0-04 |
| France CTC (CII) | 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 BR-O-05 still fails, and which other rules do.
Related rules
- BR-AE-05 Reverse-charge items must have a VAT rate of 0 (line)
- BR-AF-05 An IGIC line needs an IGIC rate of 0 or more
- BR-AG-05 IPSI invoice lines need a VAT rate of zero or more
- BR-E-05 Exempt items must have a VAT rate of 0 (line)
- BR-G-05 Exports outside the EU must have a VAT rate of 0 (line)
- BR-IC-05 Intra-community supplies must have a VAT rate of 0 (line)