BT-5Invoice currency code

The currency every amount in the document is read in — mandatory on every invoice. An ISO 4217 code, EUR for the German market in the normal case. Every amount additionally carries its own currencyID attribute, which has to agree with BT-5.

XML element (UBL): cbc:DocumentCurrencyCode
XML element (CII): ram:InvoiceCurrencyCode

Written and checked against the official KoSIT rule set by Dmytro Yalanskyi, NormAPI.

Validation rules for this field

Rules from the official KoSIT rule set that check this field — derived automatically from the written explanations, not hand-maintained.

BR-05 — An Invoice shall have an Invoice currency code (BT-5).
PEPPOL-EN16931-R005 — VAT accounting currency code MUST be different from invoice currency code when provided.

NormAPI provides technical validation, not tax or legal advice.