Tools › SmartFormular E-Rechnung lite › Validation rules › BR-05

BR-05

Missing: invoice currency (BT-5)

Validation rule of EN 16931 (CEN, rule set 1.3.16) · Level: Error

What the message means

Missing: invoice currency (BT-5).

What the issuer needs to change

Add the invoice currency.

Fields concerned

BT-5 invoice currency

Your invoice reports BR-05? Check it with SmartFormular E-Rechnung lite, free to try until 31 December 2026: the tool shows every finding with an explanation, the invoice in readable form and a GiroCode to pay – in your browser, no upload.

Check an e-invoice

Origin

Rule set: EN 16931 (CEN, rule set 1.3.16)
Syntax: CII, UBL
Level: Error

Original rule text

An Invoice shall have an Invoice currency code (BT-5).

Source: CEN/TC 434, EN 16931 validation rules 1.3.16, European Union Public Licence 1.2

Technical details for IT

UBL

Context: /ubl:Invoice | /cn:CreditNote
Test: not(normalize-space(cbc:DocumentCurrencyCode) != '')

CII

Context: /rsm:CrossIndustryInvoice
Test: not(normalize-space(rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeSettlement/ram:InvoiceCurrencyCode) != '')

Related rules

BR-02Missing: invoice number (BT-1)
BR-03Missing: invoice date (BT-2)
BR-04Missing: invoice type code (BT-3)
BR-06Missing: seller name (BT-27)
BR-07Missing: buyer name (BT-44)
BR-08Missing: seller postal address (BG-5)

All validation rules

Technical explanation by robin.vision, not tax or legal advice. Rules as of 31 August 2026 (KoSIT validator configuration).