E-invoicing7 min read
The CII format explained: the other e-invoice syntax
The CII format decoded: the second syntax allowed by EN 16931, how it differs from UBL 2.1, where it comes from and when a Belgian business meets it.
Category
E-invoicing
E-invoicing7 min read
Factur-X: the hybrid e-invoice format explained
The Factur-X format explained: a hybrid PDF and XML e-invoice, its profiles, how it maps to EN 16931, and why Belgium invoices over Peppol BIS.
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.
E-invoicing9 min read
The simplified invoice in Belgium: cases and details
The simplified invoice in Belgium: when it is allowed, the EUR 100 excl. VAT threshold, its mandatory details and the operations excluded from the scheme.
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.
E-invoicing9 min read
Foreign-currency invoice: showing VAT in euros
Foreign-currency invoice rules: why VAT must be shown in euros, which exchange rate to apply, and how a Peppol e-invoice carries two currencies at once.
E-invoicing8 min read
B2G e-invoicing in Belgium: invoicing the public sector
B2G e-invoicing in Belgium: who is affected, the public-procurement timeline, the Peppol BIS format and the role of the Mercurius platform.
E-invoicing9 min read
The pro forma invoice: what it is for and what it is not
The pro forma invoice explained: what it is for, how it differs from a final invoice, its VAT status, and when to issue one for your business.
E-invoicing8 min read
Receiving e-invoices: obligation and setup for Belgian SMEs
Receiving e-invoices in B2B: the Belgian obligation since 2026, who is in scope, and how to set up receiving over the Peppol network.
E-invoicing7 min read
E-invoicing for the self-employed in Belgium
E-invoicing and the self-employed: who the B2B mandate covers, what changes for a small business and how to get ready without complexity.
E-invoicing8 min read
Electronic credit note: when and how to issue one
Electronic credit note: when to issue one, what it must contain and how it travels over Peppol in UBL 2.1 to correct an invoice you have already sent.
E-invoicing6 min read
Switching to e-invoicing: a step-by-step guide
Switching to e-invoicing in Belgium: a step-by-step plan to connect to Peppol, choose a compliant tool and send your first structured invoice.
E-invoicing8 min read
The UBL 2.1 format explained: the structure of an e-invoice
UBL 2.1 decoded: where it comes from, how a structured e-invoice is organised, and how it relates to EN 16931 and Peppol BIS Billing 3.0.
E-invoicing7 min read
E-invoicing software: how to choose one in Belgium
How to choose e-invoicing software in Belgium: native Peppol access point, EN 16931 compliance, send and receive, VAT, integrations and support.
E-invoicing7 min read
Free invoicing software in Belgium: what 'free' actually covers
An honest guide to free invoicing software in Belgium: what free plans cover, where the limits are, and whether they handle mandatory Peppol invoicing.
E-invoicing7 min read
How to get ready for mandatory e-invoicing: a 2026 guide
Get ready for mandatory e-invoicing in Belgium: assess your flows, pick a Peppol-connected tool, clean client data, test and roll out step by step.
E-invoicing4 min read
E-invoicing in Belgium: what's changing for businesses
A practical guide to e-invoicing for Belgian businesses: the Peppol BIS format, compliance steps, and the mistakes to avoid when making the switch.