BT-5 Invoice Currency Code

What is BT-5?

BT-5 (Invoice currency code) specifies the currency for all monetary amounts on the invoice. It uses ISO 4217 three-letter codes and is mandatory in every EN 16931 invoice.

All amounts in the invoice — line totals, tax amounts, invoice total — must be expressed in this currency unless a separate tax currency (BT-6) is specified.

Requirements

In UBL XML

EUR

All amount elements then use the same currency:

1000.00

In CII XML

EUR

Common Currency Codes in E-Invoicing

Code Currency Countries
---------------------------
EUR Euro Eurozone (DE, FR, IT, NL, BE, ES, etc.)
GBP British Pound United Kingdom
SEK Swedish Krona Sweden
NOK Norwegian Krone Norway
DKK Danish Krone Denmark
PLN Polish Złoty Poland
CHF Swiss Franc Switzerland

BT-5 vs BT-6 (Tax Currency)

Field Purpose ----------------
BT-5 Currency for all invoice amounts BT-6 Optional: separate currency for tax reporting

BT-6 is only used when the tax authority requires tax amounts in a different currency than the invoice currency (e.g., invoicing in USD but reporting VAT in EUR).

Common Errors