What it means
The amount already paid in advance, such as a deposit or an earlier payment (BT-113), has more than two digits after the decimal point. Every digit after the point counts, so 300.505 fails and so does 300.500.
Why it matters
The paid amount is deducted from the total with VAT to get the amount due. With extra decimals the amount due cannot be worked out to the cent, so the file fails validation and is rejected.
How to fix it
Find the field for the amount paid, prepaid or deposit in your invoicing software and round it to two decimals. Then check that the amount due (BT-115) is still the total with VAT minus the paid amount, plus any rounding amount.
The rule as published
The allowed maximum number of decimals for the Paid amount (BT-113) is 2. Business terms: BT-113
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-DEC-16 still fails, and which other rules do.
Related rules
- BR-CO-16 Amount due must equal total with VAT minus paid plus rounding
- BR-DEC-RO-16 Paid amount: two decimals at most
- BR-DEX-09 Amount due must add up, including third party payments
- BR-FR-CO-09_BT-23-1 An already-paid invoice must show the full amount as paid
- BR-FXEXT-CO-16 Amount due must equal total with VAT less paid plus rounding
- BR-DEC-17 Rounding amount: at most two decimals