BR-DEC-09
EN 16931-1 layer: en16931
Checked against Peppol BIS Billing 3.0 2026.5
What does BR-DEC-09 mean? The allowed maximum number of decimals for the Sum of Invoice line net amount (BT-106) is 2.
Why did my invoice fail BR-DEC-09?
The Sum of Invoice line net amounts (BT-106), which totals every line's net amount, must be expressed with at most two decimals. As a monetary total feeding the document totals block, it is capped at 2 decimals so it reconciles with the taxable amount and grand total.
Official rule text
The allowed maximum number of decimals for the Sum of Invoice line net amount (BT-106) is 2.
Common causes
- Summing line amounts that were themselves not rounded to 2 decimals
- Emitting an accumulator held in floating point with residual precision
- Aggregating values converted from another currency mid-calculation
How do I fix it?
Round the sum before writing: <cbc:LineExtensionAmount currencyID="EUR">2450.00</cbc:LineExtensionAmount> in cac:LegalMonetaryTotal.
Related rules
BR-DEC-01 · BR-DEC-02 · BR-DEC-05 · BR-DEC-06 · BR-DEC-10 · BR-DEC-11 · BR-DEC-12 · BR-DEC-13
Check your invoice against this rule
Paste it into the live demo, or call POST /v1/validate. See the quickstart.