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#credit note

Professional sorting invoices and receipts at a desk, illustrating the different invoice document types

E-invoicing7 min read

The invoice type code (BT-3): 380, 381 and the rest

The invoice type code (BT-3) explained: what the InvoiceTypeCode does, the values 380, 381, 384 and 386, and how your software fills it automatically.

8 October 2026Read article

Accountant correcting an already-issued invoice on a laptop, illustrating how to draw up a corrective invoice in Belgium

E-invoicing8 min read

Corrective invoice in Belgium: fixing an issued invoice

The corrective invoice in Belgium: how to fix an invoice already issued, choose between a credit note and an additional invoice, and the corrective document.

17 September 2026Read article

Computer screen showing structured code, illustrating the Peppol BIS Billing 3.0 format of an e-invoice

Peppol8 min read

Peppol BIS Billing 3.0: what the format contains

Peppol BIS Billing 3.0 decoded: what this invoice profile really requires, how it relates to EN 16931 and UBL 2.1, and what it changes for your invoices.

15 June 2026Read article