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Warning

UBL-CR-492: Leave the payment exchange rate out of the invoice

In short

Warning: worth checking.

UBL-CR-492 means the invoice or credit note contains a PaymentExchangeRate, which EN 16931 does not use. Remove cac:PaymentExchangeRate and state the amount due in the invoice currency.

On this page

What it means

This rule checks that the invoice or credit note has no cac:PaymentExchangeRate directly under its root element. This UBL element gives the rate for converting the invoice currency into the currency the buyer pays in. EN 16931 has no separate structured payment currency: the amount due (BT-115) is in the invoice currency.

Why it matters

The structured amount due uses the invoice currency; EN 16931 does not use this separate payment exchange-rate element.

How to fix it

Delete cac:PaymentExchangeRate directly under Invoice or CreditNote. If you agree payment in another currency, you can describe it in the payment terms (BT-20), but this does not change the currency of the structured amount due (BT-115). If your invoicing software writes this element, ask its supplier to leave it out of the export. Recheck the corrected file.

Once the file is corrected, check it again for free: Validate an invoice against EN 16931

Or fix the invoice in a form and download the corrected file, for 1 credit: Fix a rejected e-invoice

The rule as published

A UBL invoice should not include the PaymentExchangeRate

Where this rule applies

Rule set Version
EN 16931 (UBL) 1.3.17
EN 16931 (UBL credit note) 1.3.17
XRechnung 3.0 (UBL) 3.0.2
XRechnung 3.0 (UBL credit note) 3.0.2
Peppol BIS Billing 3.0 (invoice) 2026.5
Peppol BIS Billing 3.0 (credit note) 2026.5
SI-UBL 2.0 / NLCIUS (invoice) 2.0.3.13
SI-UBL 2.0 / NLCIUS (credit note) 2.0.3.13
France CTC (UBL invoice) 1.4.0-04
France CTC (UBL credit note) 1.4.0-04
CIUS-RO UBL Invoice 1.0.9 1.0.9
CIUS-RO UBL Credit Note 1.0.9 1.0.9
Rule text from phive-rules 4.6.4.

Check your file

Drop your e-invoice to see whether UBL-CR-492 still fails, and which other rules do.

Updated 6 November 2026