Peppol Accredited Service Provider · E-Invoicing Software in Belgium
Simplify E-Invoicing in Belgium with Bytize
Bytize is a Peppol Accredited Service Provider in Belgium. Send and receive Peppol BIS Billing 3.0 invoices from SAP, Microsoft Dynamics or Salesforce through a certified Peppol Access Point partner, and stay compliant with the B2B mandate.
Belgium's B2B e-invoicing mandate has been fully enforced since 1 April 2026. Fines start at €1,500 and rise to €5,000 for repeat offences.
What is E-Invoicing in Belgium?
E-Invoicing in Belgium has been mandatory for domestic B2B transactions since 1 January 2026. VAT-registered businesses established in Belgium must issue and receive structured invoices that follow the European standard EN 16931, by default over the Peppol network.
PDFs and paper invoices are no longer valid for in-scope B2B invoices. You may agree another EN 16931 format with a customer, but you must still be able to send and receive on Peppol.
What an e-invoice in Belgium must follow
- Format: Peppol BIS Billing 3.0 in UBL 2.1, compliant with EN 16931
- Exchange: Through a certified Peppol Access Point; your Peppol ID is based on your enterprise (KBO/BCE) number
- Rounding: VAT may be rounded only on the total per VAT rate, not line by line
- Public sector: Invoices to public bodies go through Peppol or the Mercurius platform
Who must comply
- All VAT-registered businesses established in Belgium, of any size, for domestic B2B sales
- B2C sales are out of scope
- Cross-border B2B sales are out of scope until EU ViDA digital reporting applies from 1 July 2030
- Excluded: businesses making only VAT-exempt (Article 44) supplies, flat-rate (Article 56) taxpayers, bankrupt businesses and businesses without a Belgian fixed establishment
E-Invoicing in Belgium: timeline and deadlines
Belgium applied the B2B mandate to every business on the same day, with no phasing by size.
1 Mar 2024
Suppliers to public bodies
B2G e-invoicing for public contracts above €3,000
1 Jan 2026
All VAT-registered businesses established in Belgium
B2B e-invoicing mandatory
1 Jan – 31 Mar 2026
All in scope
Tolerance period for good-faith issues (ended)
1 Apr 2026
All in scope
Full enforcement and fines
1 Jan 2028 (planned)
All in scope
Near-real-time e-reporting to the tax authority
The federal cabinet approved a pre-draft e-reporting law on 18 July 2026; the implementing Royal Decree is still to come.
How E-Invoicing in Belgium works with Bytize
Belgium uses the Peppol 4-corner model today: your Access Point delivers to your buyer's Access Point. E-reporting from 2028 will add the tax authority as a fifth corner.
Send invoice data
Your ERP sends invoice data to Bytize as JSON through the API.
Validate and convert
Bytize converts the data to Peppol BIS Billing 3.0 and checks it against the official rules.
Find your buyer
Bytize looks up your buyer's Peppol ID, based on their KBO/BCE number, in the Peppol network.
Deliver on Peppol
Bytize delivers the invoice to your buyer’s Access Point through its certified Peppol Access Point partner.
Receive invoices
Invoices sent to you arrive through Bytize, parsed into the same JSON shape for your ERP.
Status back to you
Every status is pushed to your ERP by webhook.
Peppol e-invoicing solutions in Belgium, built for your business
Bytize's e-Gate API covers sending and receiving on Peppol for Belgian businesses.
Send JSON, get Peppol BIS 3.0
Post invoice data as JSON. Bytize maps it to Peppol BIS 3.0 automatically, and the same payload works across every Peppol country we cover.
Validation before sending
Every invoice is checked against the Peppol rules before it’s sent, and failures are held for review, never silently dropped.
Certified Peppol delivery
Invoices are delivered through a certified Peppol Access Point partner, so you never manage certificates yourself.
Your Peppol ID, registered
Bytize registers the participants you host in its SMP and the Peppol network, so suppliers can find you.
Real-time status webhooks
Every state change, from draft to validated to sent, plus any validation failure, is pushed to your system.
Receive supplier invoices
Incoming Peppol invoices from your suppliers in Belgium arrive parsed into the same JSON shape, ready for your accounting system.
Tamper-evident archive
Each sent invoice joins a tamper-evident SHA-256 hash chain that auditors can verify at any time.
Readable PDF copy
Every sent invoice comes with a PDF version for buyers who want a visual copy.
Benefits of E-Invoicing in Belgium
E-invoicing is a legal requirement, but done well it also speeds up payments and removes manual work from your finance team. Here's what changes when you switch with Bytize.
Stay compliant without extra work
Every invoice goes out in Peppol BIS 3.0, so you meet the B2B mandate and avoid fines that start at €1,500.
Get paid faster
Invoices reach your buyer's system in seconds instead of days by email or post, so approval and payment start sooner.
Fewer errors and rejections
Each invoice is validated against the official rules before it's sent, so missing fields and wrong tax codes are fixed before your buyer sees them.
No more manual data entry
Supplier invoices arrive as structured data your ERP can post directly, freeing your team from retyping and checking PDFs.
Audit-ready records
Every invoice and status message is stored in a tamper-evident archive you can retrieve and export when the tax authority asks.
Claim the tax incentives
Small companies and the self-employed can deduct 120% of e-invoicing software subscription costs, and a 20% investment deduction applies to digital investments.
E-invoicing software in Belgium that connects to your ERP
Bytize sits between your ERP and the tax network, so your team keeps raising invoices the way it does today.
SAP
ERP
Microsoft Dynamics
ERP
Salesforce
CRM and billing
Any system
Through the Bytize API (JSON)
Custom ERP
Penalties for non-compliance with E-Invoicing in Belgium
The Royal Decree of 8 July 2025 sets fixed fines for businesses that can't send or receive structured e-invoices.
| Violation | Penalty |
|---|---|
| First offence | €1,500 |
| Second offence, detected at least 3 months after the first | €3,000 |
| Third and later offences | €5,000 each |
| Other invoicing breaches under Article 70 of the VAT Code | €50 to €5,000 per infraction |
The tolerance period ended on 31 March 2026, and full enforcement began on 1 April 2026.
Why choose Bytize for E-Invoicing in Belgium
Bytize gives Belgian businesses a certified route onto Peppol.
Peppol Accredited Service Provider
Bytize is an OpenPeppol member and SMP provider, and delivers invoices through a certified Peppol Access Point partner.
One API for your Peppol markets
Send the same JSON, and Bytize applies each country’s rules for you.
Ready for 2028
Bytize tracks Belgium’s e-reporting rules, and the same JSON payload keeps working when new rule sets ship.
Works with your ERP
Connect SAP, Microsoft Dynamics or Salesforce, or any system that can send JSON through the Bytize API.
Finance-grade security
TLS 1.3 and AES-256 encryption, an append-only audit log and a tamper-evident archive. GDPR-aligned, with a SOC 2 Type I audit underway.
E-Invoicing in Belgium: frequently asked questions
Get compliant with E-Invoicing in Belgium
Tell us your ERP and invoice volume. We'll show how Bytize connects you to Peppol and plan your go-live.