What it means
The amount of a discount that applies to the whole invoice rather than to one line (BT-92) has more than two digits after the decimal point. The check counts every digit after the point, so 12.347 fails and so does 12.340.
Why it matters
Invoice amounts are limited to cents. The discount feeds into the invoice totals, and the recipient cannot tell how you meant it to be rounded, so the file fails validation and is rejected.
How to fix it
Open the discount that applies to the whole invoice (software often calls it a document discount or overall allowance) and round its amount to two decimals. Then check that the total of discounts (BT-107) is still the sum of these discounts. If the discount is worked out from a percentage, round the result before it is written to the file, not just on screen.
The rule as published
The allowed maximum number of decimals for the Document level allowance amount (BT-92) is 2. Business terms: BT-92
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-01 still fails, and which other rules do.
Related rules
- BR-31 Amount of a discount on the whole invoice is required
- BR-AE-08 The AE taxable amount must match the lines
- BR-AF-08 IGIC taxable amount must match the lines, charges and discounts
- BR-AG-08 IPSI taxable amount must equal lines plus charges minus discounts
- BR-CO-11 Sum of invoice discounts must equal the discounts
- BR-DEC-RO-01 Discount on the whole invoice: two decimals at most