PEPPOL updates for Belgian businesses — October 2026 recap

The first ten months of 2026 reshaped how Belgian companies exchange invoices. PEPPOL is no longer a competitive advantage you adopt early — it is the default channel for structured B2B invoicing. Here is a clean, factual recap of what shifted, what is now in force, and what business owners should expect through 2027.

1. The Belgian B2B mandate — one year in

Belgium's structured e-invoicing obligation for B2B transactions took effect on 1 January 2026. The law requires every VAT-registered company established in Belgium, with a few narrow exemptions, to be able to receive structured electronic invoices for domestic B2B transactions. The emission side rolls in gradually, driven by sector and company size.

What this means in practice:

Your KBO/BCE number is automatically listed as a potential receiver in the PEPPOL directory once you register with an access point — your suppliers can send to you by VAT number alone.
Paper and PDF-only invoices between Belgian B2B parties are no longer the legal default. Your supplier can still send one as a courtesy, but the structured XML is now the authoritative document.
Accounting software and ERPs that still only email PDFs are being quietly migrated by their editors.

2. EU ViDA — the longer runway

The Council of the European Union adopted the VAT in the Digital Age (ViDA) package in March 2025. ViDA is not one deadline; it is a sequence of three pillars that reshape the EU VAT system over the next five years. The one that touches invoicing directly is Digital Reporting Requirements (DRR).

From 2025: member states may require e-invoicing for B2B transactions without seeking a derogation from the Council. This is what unlocked the Belgian mandate.
From 1 July 2030: structured e-invoicing becomes the default across the EU for intra-community B2B supplies. Member states keep the right to require it for domestic B2B as well.
Near-real-time digital reporting to tax authorities replaces the current recapitulative statements for intra-community transactions.

If you already invoice via PEPPOL today, you are five years ahead of the rollout — the data model and the delivery channel are the same.

3. PINT — the new international billing specification

OpenPeppol published PINT (Peppol International Invoice) as a specification designed to let Peppol work consistently across jurisdictions outside the original EU-focused scope. The idea: a shared semantic model, with country-specific layers (country specifications) plugged on top.

For a Belgian business this is good news in three ways:

Invoicing a client in Singapore, Australia, Japan or Malaysia now has a standard structured channel instead of PDF-by-email.
Receiving an invoice from an international supplier that already uses PEPPOL does not require your access point to be reconfigured.
The underlying UBL stays compatible: your access point handles the profile mapping transparently.

The Belgian BIS 3 profile (urn:fdc:peppol.eu:2017:poacc:billing:01:1.0) remains the one used for domestic Belgian invoices.

4. Credit notes — the quiet piece that caused real problems

Something practical we saw repeatedly in 2026: businesses receiving a PEPPOL credit note and treating it as a new unpaid invoice. The reason is honest confusion — the UBL root element is different (<CreditNote> instead of <Invoice>), the type code is 381 (or 396, 532 depending on scenario) instead of 380, and amounts can arrive either positive or negative depending on the sender's implementation.

What you should expect from your access point and your invoicing tool:

Detect the document type from the root element and the type code, not from amount signs alone.
Store credit notes separately from invoices in your reporting, so they subtract from totals rather than inflate "unpaid".
Resolve the original invoice via <cac:BillingReference> when available, and surface it as a clickable link in the UI.
In accounting exports (WinBooks, BOB50, Odoo-ready CSVs), use the correct journal — NCF rather than ACH — and reverse the supplier/expense side.

5. Continuous Transaction Controls — on the horizon

A number of EU member states are preparing CTC (Continuous Transaction Controls): real-time submission of invoice data to the tax authority, either in parallel to the business exchange (the 5-corner model Peppol has been piloting) or as a clearance step before the invoice reaches the counterparty. Italy's SDI, Hungary's RTIR and France's upcoming Chorus Pro flow are the live reference points.

Belgium has not announced a CTC obligation. If it comes, PEPPOL is the natural channel: adding a Belgian tax-authority corner to a 4-corner flow is a configuration change at access-point level, not a change on the business side.

6. Practical checklist for a Belgian business in late 2026

Confirm your KBO/BCE is registered as a receiver in the Peppol directory. If a supplier can't reach you, this is almost always why.
Verify that incoming credit notes are classified separately from invoices in your tool. A quick test: ask a supplier to send a €0.01 correction and check it appears as a credit note, not as a new invoice to pay.
Check that your archive stores the raw UBL XML plus the PDF rendering, both kept for 10 years under Article 60 of the Belgian VAT Code (as reformed by the Law of 20 November 2022).
If you work with international clients, ask whether their jurisdiction is covered by PINT — if yes, you can invoice them via PEPPOL today instead of email.
If your accountant uses WinBooks or BOB50, verify the export file drops credit notes into the NCF journal, not into ACH with inverted signs.

7. What DEMFACT ships against this list

If you use DEMFACT, these are the pieces already handled on your behalf, with no configuration needed:

Dual Invoice/CreditNote parser on the receiving side, with automatic billing-reference resolution and sign normalisation.
Separate statistics in the inbox: credit notes subtract from totals, do not appear as unpaid, and are shown with a distinct badge.
WinBooks and BOB50 exports use the correct journal (NCF for received credit notes, ACH for invoices) with reversed sides.
UBL and PDF of every received invoice archived to encrypted cloud storage for the full 10-year retention period.
Supplier VAT verified against VIES on receipt, with the result shown in the inbox detail.
Original issuer PDF — when the sender attached one inside the UBL as EmbeddedDocumentBinaryObject — is extracted and offered as a separate download alongside DEMFACT's own rendering.

8. What to expect through 2027

Three things are safe bets:

Mandatory emission coverage in Belgium will keep expanding: large companies first, then everyone else. If you emit invoices today, moving to PEPPOL now rather than when the obligation hits lets you do it on a calm week instead of a deadline week.
The German, French and Spanish mandates will be more operationally disruptive than Belgium's, because they involve CTC. If you invoice counterparties in those countries, your Peppol access point will quietly do the heavy lifting, but your supplier master data should be clean.
Expect self-billing (buyer-issued invoices, InvoiceTypeCode 389) to grow — larger buyers like industrial groups, agencies and chains prefer it because it compresses their payable workflow.

Bottom line

PEPPOL is no longer the frontier — it is the baseline. If you are already on it, the 2026 updates reward you with less friction, cleaner exports and free cross-border delivery to new regions. If you are not, the longer you wait, the more you'll have to catch up when the next ViDA phase arrives.

Need to receive your first PEPPOL invoices? Create a free DEMFACT account — Belgian VAT number registration, PEPPOL inbox and 2 free invoice credits included. No credit card required.