BR-IC-04 error EN 16931
BR-IC-04 — intra-community supply without buyer VAT ID
What it means
For an intra-community supply (category K) the buyer must be VAT-registered in another EU country — that is what justifies the 0% rate. The buyer’s VAT identifier (BT-48) is therefore mandatory. BR-IC-02 requires the seller’s.
What triggers it
Any line uses category K and buyer.vatId is empty.
How to fix it
Set the buyer’s VAT ID and verify it in VIES:
{ "buyer": { "vatId": "DE123456789" } } If the buyer’s VAT number is not valid in VIES, the supply is not a zero-rated intra-community supply — you would have to charge VAT. Free tool coming: /tools/vat-check/.
Check your invoice now. Paste it into the free validator — it flags BR-IC-04 and every other EN 16931, Peppol and XRechnung rule, each with the fix.
Or run the same check via API:
curl -X POST https://fakturwire.com/v1/validate \
-H "authorization: Bearer $FW_KEY" \
-d '{"invoice": { ... }, "profile": "en16931"}'