What it means
At least one invoice line (BG-25) has the VAT category IGIC (BT-151). The invoice must then carry the seller VAT identifier (BT-31), the seller tax registration identifier (BT-32) and/or the VAT identifier of the seller's tax representative (BT-63). One of them is enough. The test looks for a tax identifier on the seller, or a VAT identifier on the tax representative.
Why it matters
The recipient and the tax authority need to know which registered taxpayer charged the tax. Without any tax number on the seller, the IGIC cannot be tied to anyone, and the invoice is rejected.
How to fix it
Enter your VAT or tax number in the seller details of your invoicing software, usually under company or business settings. If someone else invoices on your behalf as your tax representative, their VAT number in the tax representative section is enough.
The rule as published
An Invoice that contains an Invoice line (BG-25) where the Invoiced item VAT category code (BT-151) is "IGIC" shall contain the Seller VAT Identifier (BT-31), the Seller tax registration identifier (BT-32) and/or the Seller tax representative VAT identifier (BT-63). Business terms: BG-25, BT-31, BT-32, BT-63, BT-151
Where this rule applies
| Rule set | Version |
|---|---|
| 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 |
Check your file
Drop your e-invoice to see whether BR-AF-02 still fails, and which other rules do.
Related rules
- BR-AE-02 Reverse-charge lines need both VAT numbers
- BR-AG-02 An IPSI invoice line needs the seller's tax number
- BR-E-02 VAT-exempt lines need your VAT number
- BR-IG-02 IGIC lines need a seller VAT number or tax number
- BR-IP-02 IPSI lines need a seller VAT number or tax number
- BR-S-02 Standard-rate lines need your VAT number