Choosing a management tool in 2026 is no longer a matter of convenience: since 1 January 2026, invoices between Belgian businesses must be structured e-invoices. The right move is not to compare brands, but to assess the technical and regulatory criteria that decide whether a tool will hold up over time.
Key takeaways
- Belgian accounting software must connect to the Peppol network and produce EN 16931-compliant Peppol BIS (UBL 2.1).
- Beyond invoicing, judge on bank reconciliation, VAT handling, integrations and support.
- Compare objective criteria, not rankings: your own workflow is what settles the choice.
Why choosing Belgian accounting software changes in 2026
The regulatory context has shifted the centre of gravity of the decision. The law of 6 February 2024 (published in the Moniteur belge of 20 February 2024) wrote into the VAT Code the obligation, for Belgian VAT-registered businesses, to issue structured e-invoices in their B2B exchanges, taking effect on 1 January 2026. The default format is Peppol BIS (UBL), transmitted over the Peppol network.
In practical terms, Belgian accounting software that cannot talk to Peppol leaves you outside the default framework. The first criterion is therefore no longer the look of the interface, but the tool's ability to issue, receive and archive structured invoices without a manual workaround.
The six criteria that genuinely matter
Rather than a product ranking, reason by criteria. Each can be checked before you buy, through a demo or a trial.
| Criterion | What to check | Why it is decisive | |
|---|---|---|---|
| Peppol connectivity | Send and receive via an access point | Default route since 2026 | |
| EN 16931 compliance | Generates valid Peppol BIS / UBL 2.1 | Readable by the recipient's software | |
| Bank reconciliation | Transaction import, auto-matching | Less entry, faster unpaid tracking | |
| VAT handling | Belgian rates, schemes, returns | Accuracy and audit readiness | |
| Integrations | Banks, e-commerce, accountant | Avoids double data entry | |
| Support and language | EN/NL/FR, responsiveness, docs | Decisive at a tax deadline |
Peppol connectivity and EN 16931 compliance
These two criteria form the foundation. EN 16931 is the European standard that defines the semantic model of an invoice: which data it must contain and under what constraints, independent of the encoding. The Peppol BIS (UBL 2.1) format is one concrete implementation. Ask the vendor for proof: a real test send to an access point, with an acknowledgement, is worth more than a "Peppol-compatible" label on a sales page.
EN 16931 stems from Directive 2014/55/EU of 16 April 2014, which first required European public authorities to receive and process compliant e-invoices. The Belgian private sector now inherits the same technical foundation.
Beyond the invoice: banking, VAT and integrations
Compliant invoicing is necessary but not sufficient. A tool that stops at issuing leaves you re-keying payments and preparing VAT by hand.
Automated bank reconciliation matches each imported transaction to the corresponding invoice. Check that it connects to your Belgian bank and offers assisted matching, not just statement imports.
VAT handling must cover Belgian rates and schemes, and prepare filing deadlines without manual calculation. Finally, judge the integrations: the link with your accountant, your e-commerce platform, your payment tools. Every missing integration is a potential double entry.
Test before you sign
End-to-end Peppol send
A test invoice reaches a recipient with an acknowledgement.
Receipt and automatic reading
An incoming invoice is ingested without re-keying.
Connection to your bank
Transaction import and assisted matching both work.
VAT preparation
Belgian rates and schemes applied correctly.
Export to the accountant
A format your bookkeeping firm accepts.
Anticipating the European horizon
The Belgian framework is only one step. The VAT in the Digital Age (ViDA) package, adopted on 11 March 2025, provides for structured e-invoicing and digital reporting for cross-border B2B transactions in the EU from 1 July 2030. Software already aligned with Peppol BIS and EN 16931 puts you on the right side of that trajectory, with no new project in the short term.
This durability criterion is easy to underestimate. Favour a vendor that tracks the evolution of the standard and the network over a tool frozen in place.
Accounting software connected to Peppol, ready for 2026
YouInv generates, sends and receives your EN 16931-compliant Peppol BIS invoices, with built-in bank reconciliation.
Further reading
- Electronic invoicing in Belgium: what changes for businesses
- Official sources: eInvoicing in Belgium (European Commission)
What criteria matter when choosing Belgian accounting software?
Start with connectivity to the Peppol network and support for the Peppol BIS (UBL 2.1) format aligned with the EN 16931 standard, because structured e-invoicing has been mandatory between Belgian businesses since 1 January 2026. Then assess bank reconciliation, VAT handling, integrations and the quality of support.
Does the software need to be connected to the Peppol network?
In practice, yes. Since 1 January 2026, B2B invoices between Belgian VAT-registered businesses must be structured e-invoices, and the Peppol BIS format transmitted over the Peppol network is the default route set out in the law of 6 February 2024. A tool not connected to a Peppol access point forces you into a manual workaround.
What does EN 16931 compliance mean?
EN 16931 is the European standard that defines the semantic model of an e-invoice: which data an invoice must contain and the constraints on it, independent of how it is encoded. The Peppol BIS (UBL 2.1) format is one implementation. Compliant software produces invoices that the recipient's software can read automatically.
Do I have to change accounting software for 2026?
Not necessarily. If your current tool already sends and receives Peppol BIS invoices through an access point, it may be enough. If it only produces PDFs, you need either a Peppol gateway or software connected to the network.
Is bank reconciliation important in accounting software?
Yes. Automated bank reconciliation matches incoming payments to issued invoices without manual entry, which cuts errors and speeds up chasing unpaid invoices. It is a day-to-day productivity criterion for any SME or self-employed person.
