BR-DEC-17:Rounding amount: max 2 decimals
Fix: Invoice Navigator automatically fixes this issue by correcting the `cbc:ChargeTotalAmount` element in your Invoice. Upload your invoice to fix this automatically.
The rounding adjustment amount has too many decimal places. Rounding amounts must have a maximum of 2 decimal places.
Engine Classification
Round payable rounding amount to 2 decimal places per EN16931
Confidence: 95% · Applied automatically in pipeline
What is BR-DEC-17?
BR-DEC-17 is a fatal validation rule defined in the EN 16931 specification. It validates the PayableRoundingAmount element 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:LegalMonetaryTotal/cbc:PayableRoundingAmount
Why This Error Matters
Invoice will be rejected by validation. Rounding amounts must have proper precision to correctly adjust the final payable amount.
BR-DEC-17 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-17
- ·Specification: EN 16931
How to Fix It
Locate PayableRoundingAmount
Find cbc:PayableRoundingAmount in cac:LegalMonetaryTotal
Check decimal places
Count the number of decimal places in the amount
Round if needed
If more than 2 decimals, round using standard rounding (half up)
Before / After
<cac:LegalMonetaryTotal> <cbc:ChargeTotalAmount>100.123456</cbc:ChargeTotalAmount> <!-- Too many decimal places --> </cac:LegalMonetaryTotal>
<cac:LegalMonetaryTotal> <cbc:ChargeTotalAmount>100.00</cbc:ChargeTotalAmount> <!-- Correct decimal places --> </cac:LegalMonetaryTotal>
Technical Reference
//cac:LegalMonetaryTotal/cbc:PayableRoundingAmountCommon Causes
- ·Rounding calculation itself produced extra decimals
- ·Small adjustment entered with excess precision
- ·ERP rounding logic creates precise remainders
- ·Manual rounding entry with too many decimals
- ·Calculation chain preserved unwanted precision
Seeing this in production? The API handles BR-DEC-17 automatically. See the fix response →
Frequently Asked Questions
BR-DEC-17 occurs when the Rounding amount (BT-114) has more than 2 decimal places. This typically happens when rounding calculations produce extra decimals or when ERP systems preserve excess precision.
Round the PayableRoundingAmount value in cac:LegalMonetaryTotal to 2 decimal places. Invoice Navigator's automatic Fixer tool can correct this instantly.
Yes, BR-DEC-17 is a critical error that will cause invoice rejection. Monetary amounts must have proper precision for financial compliance.
Yes, BR-DEC-17 can be automatically fixed using Invoice Navigator's Fixer tool. The tool will round the rounding amount to 2 decimal places.
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Last updated: 27 February 2026
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