BR-DEC-28
EN 16931-1 layer: en16931
Checked against Peppol BIS Billing 3.0 2026.5
What does BR-DEC-28 mean? The allowed maximum number of decimals for the Invoice line charge base amount (BT-142) is 2.
Why did my invoice fail BR-DEC-28?
The Invoice line charge base amount (BT-142), the amount the line-level charge percentage is applied to, may have at most two decimal places. Constraining the base to currency precision ensures the charge amount (base x percentage) is reproducible and reconciles.
Official rule text
The allowed maximum number of decimals for the Invoice line charge base amount (BT-142) is 2.
Common causes
- Deriving the base from an unrounded intermediate value
- Currency conversion of the base producing 3+ decimals
- Serializing full precision instead of quantizing to 2 places
How do I fix it?
Round the charge base amount: <cac:AllowanceCharge><cbc:ChargeIndicator>true</cbc:ChargeIndicator><cbc:BaseAmount currencyID="EUR">100.00</cbc:BaseAmount></cac:AllowanceCharge>
Related rules
BR-DEC-01 · BR-DEC-02 · BR-DEC-05 · BR-DEC-06 · BR-DEC-09 · BR-DEC-10 · BR-DEC-11 · BR-DEC-12
Check your invoice against this rule
Paste it into the live demo, or call POST /v1/validate. See the quickstart.