What it means
When a discount on the whole invoice has VAT category S (standard rate), its VAT rate (BT-96) must be greater than zero.
Why it matters
A standard-rated amount with no rate contradicts itself, so the VAT on it cannot be worked out. The invoice is rejected.
How to fix it
In your invoicing software, open the item or the line and check its VAT setting. Choose the standard rate with its percentage, such as 19 % in Germany, 20 % in France or 21 % in the Netherlands and Belgium. If the item really carries no VAT, use the zero-rated, exempt or reverse charge category instead.
The rule as published
In a Document level allowance (BG-20) where the Document level allowance VAT category code (BT-95) is "Standard rated" the Document level allowance VAT rate (BT-96) shall be greater than zero. Business terms: BG-20, BT-95, BT-96
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 WL | 1.0.9-2 |
| 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 WL | 2.5.2 |
| 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-S-06 still fails, and which other rules do.
Related rules
- BR-AE-06 Reverse-charge items must have a VAT rate of 0 (discount)
- BR-AF-06 An IGIC discount on the whole invoice needs a rate of 0 or more
- BR-AG-06 An IPSI invoice discount needs a VAT rate of zero or more
- BR-E-06 Exempt items must have a VAT rate of 0 (discount)
- BR-G-06 Exports outside the EU must have a VAT rate of 0 (discount)
- BR-IC-06 Intra-community supplies must have a VAT rate of 0 (discount)