BT-26

Preceding invoice issue date

BT-26 (Preceding invoice issue date) is a business term of EN 16931, the European e-invoicing standard. This page shows where the field lives in a UBL invoice, how often it may appear and which validation rules check it.

Issue date of the preceding invoice.

Group: BG-3 (Preceding invoice reference)

Cardinality: 0..1

UBL element: cac:BillingReference/cac:InvoiceDocumentReference/cbc:IssueDate

Example value: 2026-06-24

Browse the interactive EN 16931 mapper Check your invoice in the free validator