E-invoicing in Belgium

In force

B2B e-invoicing mandatory since 1 January 2026 — all VAT-registered businesses at once.

Timeline

1 Jan 2026	B2B structured e-invoicing mandatory for all VAT-registered businesses ("big bang", no phase-in)
2028	Near-real-time e-reporting expected

What you have to send

Format: EN 16931 via Peppol BIS Billing 3.0 (UBL)
Transmission: Peppol (4-corner)

Belgium is the mandate that is already biting. There is no phase-in by company size, and delivery is over Peppol, so an invoice that is valid EN 16931 but breaks a Peppol rule simply does not arrive. Validate against the Peppol profile, not the core.

Check an invoice against it

Validate a Belgium invoice against the profile that applies here — Peppol BIS Billing 3.0 (+ national rules).

See a worked example → · Upload your own →

Verified 2026-08-22. Deadlines move. Always confirm with the national tax authority before you rely on a date.

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