What it means
The amount due for payment (BT-115) is not the total with VAT (BT-112) minus any amount already paid (BT-113) plus any rounding amount (BT-114).
Why it matters
This is the amount the buyer will pay. If it does not follow from the totals, the payment cannot be matched and the invoice is rejected.
How to fix it
Work it out again: total with VAT, minus any prepayment or deposit already received, plus or minus a rounding amount if you use one. If nothing has been paid in advance, the amount due equals the total with VAT.
The rule as published
Amount due for payment (BT-115) = Invoice total amount with VAT (BT-112) -Paid amount (BT-113) +Rounding amount (BT-114). Business terms: BT-112, BT-113, BT-114, BT-115
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 |
| ZUGFeRD 2.5 BASIC WL | 2.5.2 |
| ZUGFeRD 2.5 BASIC | 2.5.2 |
| ZUGFeRD 2.5 EN 16931 | 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-CO-16 still fails, and which other rules do.
Related rules
- BR-DEX-09 Amount due must add up, including third party payments
- BR-FXEXT-CO-16 Amount due must equal total with VAT less paid plus rounding
- BR-FR-CO-09_BT-23-1 An already-paid invoice must show the full amount as paid
- BR-14 Total with VAT is required
- BR-15 Amount due is required
- BR-CO-15 Total with VAT must equal net total plus VAT