errorEN 16931

BR-DEC-25:The allowed maximum number of decimals for the Invoice line allowance base...

The invoice line allowance base amount has too many decimal places. The base amount for calculating line allowances must have a maximum of 2 decimal places.

Severity
Fatal
Rule set
EN 16931
Country
All EU
Fix type
AUTO-FIX
Confidence
95%
Category
calculation

Engine Classification

Round invoice line allowance base amount to 2 decimal places per EN16931

Confidence: 95% · Applied automatically in pipeline

What is BR-DEC-25?

BR-DEC-25 is a fatal validation rule defined in the EN 16931 specification. It validates the BaseAmount element under AllowanceCharge in the UBL invoice XML.

When this rule fires, the invoice is non-compliant and will be rejected by Peppol access points and national validation services. The sending system receives a rejection response and the invoice does not reach the buyer.

Target path: //cac:InvoiceLine/cac:AllowanceCharge[cbc:ChargeIndicator='false']/cbc:BaseAmount

Why This Error Matters

Invoice will be rejected by validation. Base amounts must have proper precision for allowance calculations.

BR-DEC-25 is a hard failure. Invoices that trigger this rule are rejected at the access point and never reach the recipient. In Peppol networks, this means your sending system receives an MLR (Message Level Response) with a rejection status. The invoice must be corrected and re-sent, adding delay to your payment cycle.

Invoice Navigator can automatically correct this error in your pipeline. The fix is applied with full audit evidence, so your compliance trail remains intact.

Validator Behavior

  • ·Causes invoice rejection
  • ·Error returned: BR-DEC-25
  • ·Specification: EN 16931

Before / After

Failing XML
<Invoice>
  <!-- Issue: The allowed maximum number of decimals for the Invoice line  -->
</Invoice>
Corrected XML
<Invoice>
  <!-- Issue resolved per EN 16931 -->
</Invoice>

Technical Reference

XPath//cac:InvoiceLine/cac:AllowanceCharge[cbc:ChargeIndicator='false']/cbc:BaseAmount
SpecEN 16931
Operationnormalize
StrategyRound invoice line allowance base amount to 2 decimal places per EN16931

Common Causes

  • ·Base amount from source has excess precision
  • ·Quantity times price produced extra decimals
  • ·ERP does not round base amounts
  • ·Manual entry with too many decimals
  • ·Calculation chain preserved unwanted precision

Seeing this in production? The API handles BR-DEC-25 automatically. See the fix response →

See Also

Last updated: 27 February 2026

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Handle BR-DEC-25 Automatically in Your Pipeline

The compliance engine auto-remediates this error with controlled safety policies and evidence pack generation.