What it means
The sum of the net amounts of all invoice lines (BT-106) has more than two digits after the decimal point. Every digit after the point counts, so 1180.125 fails and so does 1180.100.
Why it matters
This sum is the starting point of all the invoice totals: the total without VAT is worked out from it. If it carries extra decimals, every figure built on it is off, and the file fails validation and is rejected.
How to fix it
Round each invoice line net amount (BT-131) to two decimals, then add those rounded amounts to get this sum. Do not round the sum separately, because it must equal the line amounts added together. If every line already has two decimals and the sum does not, your software is adding unrounded values, so change its rounding setting or round before export.
The rule as published
The allowed maximum number of decimals for the Sum of Invoice line net amount (BT-106) is 2. Business terms: BT-106
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-09 still fails, and which other rules do.
Related rules
- BR-12 Sum of line net amounts is required
- BR-CO-10 Sum of line amounts must equal the lines
- BR-DEC-RO-09 Sum of line amounts: two decimals at most
- BR-FXEXT-CO-10 The line total must equal the sum of the individual lines
- BR-DEC-10 Total of whole-invoice discounts: at most two decimals
- BR-DEC-11 Total of whole-invoice charges: at most two decimals