DR DYNAMICSPeppol BIS Billing 3.0
Belgium's mandated format. It implements the European EN 16931 standard, carried as UBL 2.1 (CII 16B is the other EN 16931-compliant syntax). Unstructured PDFs are not valid for transactions in scope.
Belgium's e-invoicing mandate is live: getting Dynamics 365 F&O compliant
In short
Structured e-invoicing has been mandatory for domestic B2B in Belgium since 1 January 2026, and the penalty-free tolerance period closed on 31 March 2026 — graduated fines now apply. Invoices travel over the Peppol 4-corner network in Peppol BIS Billing 3.0, which implements EN 16931. A PDF emailed to a customer is no longer a valid B2B invoice. Dr Dynamics makes Microsoft Dynamics 365 Finance & Operations (and legacy AX) compliant on the access point of your choice.
How engagement works
- ValidateFree — the 34-check data-readiness validator
- ImplementFrom €35,000 — typical pilot live in 6–10 weeks
- Run15% per year — named engineer, SLA, monthly review
Belgium is already live
- 1 Jan 2026Domestic B2B Structured e-invoicing mandatory between Belgian VAT-registered businesses.
- 31 Mar 2026Tolerance ended The penalty-free period closed. Graduated fines apply from a first offence.
- 2028E-reporting Belgium plans near-real-time VAT reporting, expected to build on Peppol interoperability.
One network, one format
The Peppol 4-corner network
Your ERP, your access point, your customer's access point, their ERP. No government platform sits in the invoice flow, and nothing is cleared with the tax authority when you invoice — Belgium's reporting layer is a separate, later step.
Scope is domestic B2B between Belgian VAT-registered businesses; B2C is out. Exemptions exist — including foreign entities registered for VAT in Belgium only, Belgian entities carrying out certain Article 44 VAT-exempt activities, and transactions such as intra-community supplies — so entities near an edge should take specific advice. Invoices must be archived for at least seven years.
What this means for Dynamics 365 F&O
Generate
Structured invoices for AR and AP straight out of Dynamics 365 F&O in Peppol BIS Billing 3.0 — not a PDF attached to an email.
Validate
Validation against EN 16931 and the Peppol BIS rules before the invoice leaves Dynamics. With penalties live, a rejected invoice is a cash-flow problem, not an IT ticket.
Transmit
Connection to the Peppol access point of your choice, with responses flowing back into Dynamics. A dedicated connector covers older AX releases.
Platforms
- ecosio — live integration
- Pagero
- EDICOM
- Generix
- Any Peppol access point
How engagement works: Validate → Implement → Run
Validate Free
Our 34-check data-readiness validator: a code package your engineer drops into D365 Finance, so your team can run the seller, buyer and payment-terms checks on your own master data — and get a plain-Excel report of every problem and its fix.
Implement from €35,000
Full implementation: configuration, access-point connection, inbound AP, the validation layer, master-data checks and cutover. Typical pilot live in 6–10 weeks.
Run 15% per year
Post-go-live support with a named engineer, an SLA and a monthly operational review — so the next mandate is a configuration task, not a project.
Start free → Validate the data behind your e-invoices.Our readiness validator runs 34 checks — seller, buyer and payment terms — inside Dynamics 365 Finance, on your own master data, and reports every problem and its fix in a plain Excel list. The actual package, not a demo: email validate@drdynamics.co.uk with subject “READINESS”.
Request the free validatorBelgium e-invoicing FAQ
Is e-invoicing already mandatory in Belgium?
Yes. Structured e-invoicing has applied to domestic B2B transactions between Belgian VAT-registered businesses since 1 January 2026. A penalty-free tolerance period ran until 31 March 2026; graduated fines have applied since.
Which format does Belgium require?
Peppol BIS Billing 3.0, which implements the European EN 16931 standard, exchanged over the Peppol 4-corner network. UBL 2.1 and CII 16B are the EN 16931-compliant syntaxes. Unstructured PDFs are not valid for transactions in scope.
Does the Belgian tax authority see our invoices?
Not today. Belgium chose a 4-corner model with no government platform in the invoice flow, so nothing is cleared or reported when you invoice a customer. A near-real-time VAT reporting layer is planned for 2028 and is expected to build on Peppol interoperability — worth designing for, not building yet.
Who is out of scope?
B2C invoicing is out. Exemptions also cover foreign entities registered for VAT in Belgium only, Belgian entities carrying out certain Article 44 VAT-exempt activities, bankrupt entities and those under the special flat-rate scheme, plus transactions such as intra-community supplies and services taxed in another EU country. If an entity sits near one of those edges, take specific advice.
What are the penalties for non-compliance?
Graduated fines: €1,500 for a first offence, €3,000 for a second and €5,000 for a third within a three-month window.
Does Dynamics 365 F&O support Peppol BIS 3.0?
Yes. D365 Finance generates EN 16931-compliant invoices through Electronic Reporting, and there is a country-independent Peppol BIS 3 capability in the Electronic invoicing service. Transmission is a provider decision — Microsoft is not your access point — so we connect Dynamics to the access point you choose. A dedicated connector covers AX 4.0 through AX 2012.
What language does the engagement run in?
English or Dutch, whichever suits your team. A Dutch-speaking consultant is available, so a Flemish finance team can have the conversation in Dutch, and the wider programme can run in English for international groups.
Get your fastest-path plan for Belgium
The mandate is live and the tolerance period is over, so this is a compliance gap rather than a deadline to plan for. Bring your Belgian entities and your Dynamics version and we will tell you honestly where you stand. If you would rather have the conversation in Dutch, we have a Dutch-speaking consultant.