BR-CL-04: Invoice currency code is not an ISO 4217 code

StandardEN 16931-1 (European e-invoicing semantic model)SeverityError: the invoice is rejectedSyntaxUBL, CIIApplies toEvery EN 16931 invoice: XRechnung, ZUGFeRD 2.x / Factur-X (profiles EN 16931, EXTENDED, XRECHNUNG), Peppol BIS Billing 3.0, and national CIUS such as the Dutch NLCIUS or the Italian/Spanish profiles.

Official rule text

[BR-CL-04] Invoice currency code MUST be coded using ISO code list 4217 alpha-3

Why this error occurs

The invoice currency (BT-5) must be an ISO 4217 alpha-3 code. The rule checks cbc:DocumentCurrencyCode (UBL) or ram:InvoiceCurrencyCode (CII) against the current ISO list. Typical wrong values are EURO, Euro, eur, the symbol, or a numeric code taken from an ERP currency table.

How to fix it

Write the three-letter upper-case code, e.g. EUR, USD, GBP, CHF, DKK, NOK, without surrounding whitespace. Map your ERP currency key to ISO 4217 in the export configuration. Use the same code in every currencyID attribute of the document (BR-CL-03, PEPPOL-EN16931-R051).

Example (valid)

<cbc:DocumentCurrencyCode>EUR</cbc:DocumentCurrencyCode>

What the validator checks

Checked element (context):

UBL

cbc:DocumentCurrencyCode

Test (XPath):

((not(contains(normalize-space(.), ' ')) and contains(' AED AFN ALL AMD ANG AOA ARS AUD AWG AZN BAM BBD BDT BGN BHD BIF BMD BND BOB BOV BRL BSD BTN BWP BYN BZD CAD CDF CHE CHF CHW CLF CLP CNH CNY COP COU CRC CUP CVE CZK DJF DKK DOP DZD EGP ERN ETB EUR FJD FKP GBP GEL GHS GIP GMD GNF GTQ GYD HKD HNL HTG HUF IDR ILS INR IQD IRR ISK JMD JOD JPY KES KGS KHR KMF KPW KRW KWD KYD KZT LAK LBP LKR LRD LSL LYD MAD MDL MGA MKD MMK MNT MOP MRU MUR MVR MWK MXN MXV MYR MZN NAD NGN NIO NOK NPR NZD OMR PAB PEN PGK PHP PKR PLN PYG QAR RON RSD RUB RWF SAR SBD SCR SDG SEK SGD SHP SLE SOS SRD SSP STD SVC SYP SZL THB TJS TMT TND TOP TRY TTD TWD TZS UAH UGX USD USN UYI UYU UYW UZS VES VED VND VUV WST XAF XAG XAU XBA XBB XBC XBD XCD XDR XOF XPD XPF XPT XSU XTS XUA XXX YER ZAR ZMW ZWG ', concat(' ', normalize-space(.), ' '))))

CII

ram:InvoiceCurrencyCode

Test (XPath):

((not(contains(normalize-space(.), ' ')) and contains(' AED AFN ALL AMD ANG AOA ARS AUD AWG AZN BAM BBD BDT BGN BHD BIF BMD BND BOB BOV BRL BSD BTN BWP BYN BZD CAD CDF CHE CHF CHW CLF CLP CNH CNY COP COU CRC CUP CVE CZK DJF DKK DOP DZD EGP ERN ETB EUR FJD FKP GBP GEL GHS GIP GMD GNF GTQ GYD HKD HNL HTG HUF IDR ILS INR IQD IRR ISK JMD JOD JPY KES KGS KHR KMF KPW KRW KWD KYD KZT LAK LBP LKR LRD LSL LYD MAD MDL MGA MKD MMK MNT MOP MRU MUR MVR MWK MXN MXV MYR MZN NAD NGN NIO NOK NPR NZD OMR PAB PEN PGK PHP PKR PLN PYG QAR RON RSD RUB RWF SAR SBD SCR SDG SEK SGD SHP SLE SOS SRD SSP STD SVC SYP SZL THB TJS TMT TND TOP TRY TTD TWD TZS UAH UGX USD USN UYI UYU UYW UZS VES VED VND VUV WST XAF XAG XAU XBA XBB XBC XBD XCD XDR XOF XPD XPF XPT XSU XTS XUA XXX YER ZAR ZMW ZWG ', concat(' ', normalize-space(.), ' '))))

Check your invoice

Drop your XML or PDF on the validator and every failed rule is linked to its page here. Free, no account, the file is not stored.

Check your invoice →

Same check via API:

curl -F file=@invoice.xml https://einvoicechecker.com/v1/validate

Related rules

BR-CL-01 Invoice type code is not a valid UNTDID 1001 code
BR-CL-03 currencyID attribute is not an ISO 4217 code
BR-CL-05 Tax currency code MUST be coded using ISO code list 4217 alpha-3
BR-CL-06 Value added tax point date code MUST be coded using a restriction of UNTDID 2005
BR-CL-07 Object identifier identification scheme identifier MUST be coded using a restriction…
BR-CL-08 Invoiced note subject code shall be coded using UNCL4451
BR-CL-10 Party identifier scheme is not an ISO 6523 ICD code
BR-CL-11 Any registration identifier identification scheme identifier MUST be coded using one…

Frequently asked questions

What does BR-CL-04 mean?

BR-CL-04 is a en 16931 core rule: Invoice currency code MUST be coded using ISO code list 4217 alpha-3

Will my invoice be rejected because of BR-CL-04?

Yes. BR-CL-04 is flagged "fatal"; validators (KoSIT, Peppol access points, the German ZRE/OZG-RE portals) reject the invoice until it is fixed.

Which formats does BR-CL-04 apply to?

Every EN 16931 invoice: XRechnung, ZUGFeRD 2.x / Factur-X (profiles EN 16931, EXTENDED, XRECHNUNG), Peppol BIS Billing 3.0, and national CIUS such as the Dutch NLCIUS or the Italian/Spanish profiles. Syntax: UBL and CII.

Source: EN 16931-1:2017 schematron (CEN TC434, via Peppol BIS 3.0.20). Catalogue generated from the official schematron on 2026-10-14.