BR-DEC-24:The allowed maximum number of decimals for the Invoice line allowance amount...
Fix: Invoice Navigator automatically fixes this issue by updating the BT-136 field in your Invoice. Upload your invoice to fix this automatically.
The invoice line allowance amount has too many decimal places. Line-level allowance amounts must have a maximum of 2 decimal places.
Engine Classification
Round invoice line allowance amount to 2 decimal places per EN16931
Confidence: 95% · Applied automatically in pipeline
What is BR-DEC-24?
BR-DEC-24 is a fatal validation rule defined in the EN 16931 specification. It validates the Amount element under AllowanceCharge in the UBL invoice XML.
When this rule fires, the invoice is rejected by Peppol access points and never reaches the buyer.
Target path: //cac:InvoiceLine/cac:AllowanceCharge[cbc:ChargeIndicator='false']/cbc:Amount
Why This Error Matters
Invoice will be rejected by validation. Line allowances affect line net amount and must have proper precision.
BR-DEC-24 is a hard failure — the invoice must be corrected and re-sent before it can reach the recipient.
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-24
- ·Specification: EN 16931
How to Fix It
Find the incorrectly formatted value
Check cbc:Amount at //cac:InvoiceLine/cac:AllowanceCharge[cbc:ChargeIndicator='false']/cbc:Amount. The current value does not match the required format.
Apply the correct format
Invoice Navigator automatically fixes this issue by updating the BT-136 field in your Invoice.
Update your export settings
If this occurs consistently, check your invoicing software's locale and format settings for XML export. Re-validate to confirm BR-DEC-24 is resolved.
Before / After
<Invoice> <!-- Issue: The allowed maximum number of decimals for the Invoice line --> </Invoice>
<Invoice> <!-- Issue resolved per EN 16931 --> </Invoice>
Technical Reference
//cac:InvoiceLine/cac:AllowanceCharge[cbc:ChargeIndicator='false']/cbc:AmountCommon Causes
- ·Percentage discount calculation produced extra decimals
- ·Allowance amount entered with excess precision
- ·ERP discount calculation preserves full precision
- ·Manual allowance entry error
- ·Import from system with different precision rules
Seeing this in production? The API handles BR-DEC-24 automatically. See the fix response →
Frequently Asked Questions
The invoice line allowance amount has too many decimal places. Line-level allowance amounts must have a maximum of 2 decimal places.
Invoice Navigator automatically fixes this issue by updating the BT-136 field in your Invoice. You can also use Invoice Navigator's compliance engine to correct this automatically in your pipeline.
Yes, BR-DEC-24 is a critical error that will cause invoice rejection. It must be fixed before submission.
Many instances of BR-DEC-24 can be automatically corrected using Invoice Navigator's compliance engine. The fix is applied in your pipeline with full audit evidence.
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Last updated: 14 April 2026
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