Which format does Belgium use for e-invoicing?

Peppol BIS Billing 3.0 over the Peppol network. Documents go to FPS Finance; the document travels over Peppol, not a state portal.

Does Oltrano control the invoice number in Belgium?

Yes. Numbering is gap-free and sequential, resets on your schedule and never reuses a number.

Is Belgium a clearance country?

No. Belgium uses a post-audit regime: you issue the invoice, then report it.

What is the Peppol EAS code for Belgium?

9925. It identifies the electronic address scheme used for parties in Belgium.

E-invoicing in BelgiumPeppol BIS Billing 3.0 over the Peppol network

Structured B2B invoicing over Peppol is the rule for VAT-registered businesses established in Belgium.

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The facts

What issuing in Belgium actually involves

Format	Peppol BIS Billing 3.0 over the Peppol network
Goes to	FPS Finance; the document travels over Peppol, not a state portal
Regime	Post-audit — you issue, then report
Invoice number	Stays ours: gap-free, sequential, yours to control
Seller tax ID	VAT number
Buyer tax ID	VAT number
Peppol EAS code	9925
Integration	Direct, no third-party provider needed

The part that costs a day

The catch nobody writes down

There is no government portal to upload to — the document travels between two Peppol access points, which means both you and your customer have to be registered on the network before anything can be delivered. A PDF attached to an email is no longer an invoice for VAT purposes, even if the customer is happy to receive one.

Your numbering stays yours

We issue gap-free, sequential numbers that reset on your schedule and are never reused — including for voided documents, which keep theirs. The authority takes the document as numbered.

Tax is computed from the base

Never extracted from the gross. The two formulas differ by a cent and the wrong one gets the file rejected. The leftover cent is declared as payment rounding (BT-114), where the standard puts it.

Straight talk

What we do not do in Belgium.

We do not hold your signing certificate, we do not file your periodic returns, and we are not your accountant.

No third-party provider is required: we build and validate the document ourselves, and you can still connect one if your accountant prefers it.