Invoice, credit note, and quote — Belgian practice
How invoices, credit notes, and quotes differ in Belgian commercial practice, and how each relates to Peppol and VAT documentation.
Updated
- Belgique
Three documents, three purposes
Belgian freelancers and SMEs routinely use three commercial documents. They look similar on paper or screen, but they serve different legal and operational roles.
| Document | Purpose | Typical VAT effect |
|---|---|---|
| Quote | Offer prices and terms before acceptance | Usually none until accepted/invoiced |
| Invoice | Claim payment for a supply; VAT document | Creates VAT for the transaction |
| Credit note | Correct or cancel (part of) an invoice | Adjusts VAT downward when valid |
The quote (devis / offerte)
A quote proposes work or goods at stated prices, often with a validity period. It is a commercial offer, not proof of a completed taxable supply. Once the client accepts, practice varies: some convert the quote into an invoice; others issue the invoice after delivery.
Quotes are generally not exchanged as Peppol billing documents. They remain in your CRM or invoicing tool until conversion.
The invoice (facture / factuur)
An invoice documents a supply of goods or services and, for VAT-liable businesses, is a core VAT evidence document. Belgian invoices must include mandatory legal mentions (parties, VAT numbers where required, description, dates, totals, VAT breakdown, continuous numbering, and other mentions depending on the regime).
Under the structured e-invoicing mandate, many B2B invoices must also travel as Peppol structured messages. The commercial meaning does not change; the exchange channel and data format do.
The credit note (note de crédit / creditnota)
A credit note reduces or cancels amounts previously invoiced — for returns, pricing errors, partial cancellations, or other agreed corrections. It references the original invoice and restores consistency in VAT and accounts receivable.
On Peppol, credit notes follow the same structured logic as invoices (billing document types under the Peppol BIS family). Issuing only an informal email “discount” without a proper credit note leaves books and VAT out of sync.
Lifecycle that keeps books clean
A robust process looks like this:
- Send a quote and record acceptance
- Deliver the work or goods
- Issue an invoice (structured Peppol when required)
- If something changes, issue a credit note linked to the original invoice
- Reconcile payments against open items
Skipping steps — for example, editing an already-sent invoice instead of crediting — creates numbering and audit problems.
Continuous numbering
Belgian practice expects chronological, gap-free numbering sequences for invoices (and typically separate sequences for credit notes). Structured e-invoicing does not remove that discipline; it reinforces it, because systems and auditors can detect irregularities more easily.
- Credit note
A formal document that reverses or reduces a previously issued invoice, adjusting amounts and VAT accordingly.